TY - NEWS T1 - Comet Lovejoy Plunges into the Sun and Survives AN - 912753864 JF - UPI Space Daily AU - Dr. Tony Phillips for NASA Science News Y1 - 2011/12/27/ PY - 2011 DA - 2011 Dec 27 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/912753864?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Comet+Lovejoy+Plunges+into+the+Sun+and+Survives&rft.au=Dr.+Tony+Phillips+for+NASA+Science+News&rft.aulast=Dr.+Tony+Phillips+for+NASA+Science+News&rft.aufirst=&rft.date=2011-12-27&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-12-27 ER - TY - NEWS T1 - Is Vesta the Smallest Terrestrial Planet AN - 914384586 JF - UPI Space Daily AU - Dauna Coulter for "http://science.nasa.gov/" NASA Science News Y1 - 2011/12/19/ PY - 2011 DA - 2011 Dec 19 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/914384586?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Is+Vesta+the+Smallest+Terrestrial+Planet&rft.au=Dauna+Coulter+for+%22http%3A%2F%2Fscience.nasa.gov%2F%22+NASA+Science+News&rft.aulast=Dauna+Coulter+for+%22http%3A%2F%2Fscience.nasa.gov%2F%22+NASA+Science+News&rft.aufirst=&rft.date=2011-12-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2012-01-06 ER - TY - NEWS T1 - Landsat satellites Track Yellowstone Underground Heat AN - 911744605 JF - UPI Space Daily AU - Ellen Gray for NASA's Earth Science News Y1 - 2011/12/19/ PY - 2011 DA - 2011 Dec 19 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911744605?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Landsat+satellites+Track+Yellowstone+Underground+Heat&rft.au=Ellen+Gray+for+NASA%27s+Earth+Science+News&rft.aulast=Ellen+Gray+for+NASA%27s+Earth+Science+News&rft.aufirst=&rft.date=2011-12-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-12-19 ER - TY - NEWS T1 - Paleoclimate Record Points Toward Potential Rapid Climate Changes AN - 911739764 JF - UPI Space Daily AU - Patrick Lynch for NASA Earth Science News Y1 - 2011/12/19/ PY - 2011 DA - 2011 Dec 19 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911739764?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Paleoclimate+Record+Points+Toward+Potential+Rapid+Climate+Changes&rft.au=Patrick+Lynch+for+NASA+Earth+Science+News&rft.aulast=Patrick+Lynch+for+NASA+Earth+Science+News&rft.aufirst=&rft.date=2011-12-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-12-19 ER - TY - JOUR T1 - Object-based mapping of the circumpolar taiga-tundra ecotone with MODIS tree cover AN - 911166901; 16077245 AB - The circumpolar taiga-tundra ecotone was delineated using an image-segmentation-based mapping approach with multi-annual MODIS Vegetation Continuous Fields (VCF) tree cover data. Circumpolar tree canopy cover (TCC) throughout the ecotone was derived by averaging MODIS VCF data from 2000 to 2005 and adjusting the averaged values using linear equations relating MODIS TCC to Quickbird-derived tree cover estimates. The adjustment helped mitigate VCF's overestimation of tree cover in lightly forested regions. An image segmentation procedure was used to group pixels representing similar tree cover into polygonal features (segmentation objects) that form the map of the transition zone. Each polygon represents an area much larger than the 500m MODIS pixel and characterizes the patterns of sparse forest patches on a regional scale. Those polygons near the boreal/tundra interface with either (1) mean adjusted TCC values from 5 to 20%, or (2) mean adjusted TCC values 5% were used to identify the ecotone. Comparisons of the adjusted average tree cover data were made with (1) two existing tree line definitions aggregated for each 1 degree longitudinal interval in North America and Eurasia, (2) Landsat-derived Canadian proportion of forest cover for Canada, and (3) with canopy cover estimates extracted from airborne profiling lidar data that transected 1238 of the TCC polygons. The adjusted TCC from MODIS VCF shows, on average, <12% TCC for all but one regional zone at the intersection with independently delineated tree lines. Adjusted values track closely with Canadian proportion of forest cover data in areas of low tree cover. A comparison of the 1238 TCC polygons with profiling lidar measurements yielded an overall accuracy of 67.7%. JF - Remote Sensing of Environment AU - Ranson, K J AU - Montesano, P M AU - Nelson, R AD - Code 614.4, Biospheric Sciences Branch, NASA/Goddard Space Flight Center, Greenbelt, Maryland 20771, USA, Ross.F.Nelson@nasa.gov Y1 - 2011/12/15/ PY - 2011 DA - 2011 Dec 15 SP - 3670 EP - 3680 PB - Elsevier B.V., Box 882 New York NY 10159 United States VL - 115 IS - 12 SN - 0034-4257, 0034-4257 KW - Environment Abstracts; Ecology Abstracts KW - Taiga-tundra ecotone KW - MODIS KW - VCF KW - CAVM KW - CAPI KW - Trees KW - tundra KW - Remote sensing KW - Lidar KW - Forests KW - Tundra KW - Eurasia KW - Mapping KW - Canopies KW - Mathematical models KW - Data processing KW - Vegetation KW - Image processing KW - Ecotones KW - ecotones KW - Standard deviation KW - Canada KW - Segmentation KW - canopies KW - ENA 06:Food & Drugs KW - D 04030:Models, Methods, Remote Sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911166901?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remote+Sensing+of+Environment&rft.atitle=Object-based+mapping+of+the+circumpolar+taiga-tundra+ecotone+with+MODIS+tree+cover&rft.au=Ranson%2C+K+J%3BMontesano%2C+P+M%3BNelson%2C+R&rft.aulast=Ranson&rft.aufirst=K&rft.date=2011-12-15&rft.volume=115&rft.issue=12&rft.spage=3670&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&rft_id=info:doi/10.1016%2Fj.rse.2011.09.006 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-12-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - Data processing; Mathematical models; Trees; Remote sensing; Forests; Image processing; Vegetation; Ecotones; Standard deviation; Tundra; Segmentation; Canopies; Mapping; ecotones; tundra; Lidar; canopies; Canada; Eurasia DO - http://dx.doi.org/10.1016/j.rse.2011.09.006 ER - TY - JOUR T1 - Remote sensing of phytoplankton community composition along the northeast coast of the United States AN - 911154996; 16077236 AB - Satellite imagery has proven to be a powerful tool for measuring chlorophyll a in surface waters. While this provides an estimate of total phytoplankton biomass, it does not distinguish between phytoplankton groups, many of which have functional differences and therefore affect biogeochemical cycles differently. Phytoplankton pigment analysis has been used to quantify a wide range of photosynthetic and accessory pigments, and chemotaxonomic analysis (e.g. CHEMTAX) has been used to successfully quantify functional taxonomic groups in nature based on pigment distributions. Here, we combine CHEMTAX analysis with satellite-derived distributions of specific phytoplankton pigments to describe the distributions of particular components of the phytoplankton community in the northeast coast of the United States from space. The spatial and seasonal variations in phytoplankton community structure elucidated through satellite remote sensing methods generally agreed with observations of abundance estimates of cell counts. Diatoms were generally the most abundant phytoplankton in this region, especially during Winter-Spring and in the inner shelf, but phytoplankton populations shifted to increasing abundance of other taxa during Summer, especially offshore. While still preliminary, satellite-derived taxa-specific information with proper regional controls holds promise for providing information on phytoplankton abundance to a taxonomic group level which would greatly improve our understanding of the impacts of human activity and climate change on ecosystems. JF - Remote Sensing of Environment AU - Pan, Xiaoju AU - Mannino, Antonio AU - Marshall, Harold G AU - Filippino, Katherine C AU - Mulholland, Margaret R AD - NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA, xpanx001@gmail.com Y1 - 2011/12/15/ PY - 2011 DA - 2011 Dec 15 SP - 3731 EP - 3747 PB - Elsevier B.V., Box 882 New York NY 10159 United States VL - 115 IS - 12 SN - 0034-4257, 0034-4257 KW - Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; Microbiology Abstracts C: Algology, Mycology & Protozoology; Meteorological & Geoastrophysical Abstracts; Environment Abstracts; Ecology Abstracts KW - CHEMTAX KW - Phytoplankton community KW - Remote sensing KW - United States northeast coast KW - MODIS-Aqua KW - Chlorophylls KW - Chlorophyll KW - Ecosystems KW - Remote sensing of environment KW - Surface water KW - Abundance KW - Climatic changes KW - Climate change KW - Bacillariophyceae KW - Diatoms KW - Phytoplankton KW - Man-induced effects KW - Population dynamics KW - Pigments KW - taxonomy KW - Seasonal variations KW - Coasts KW - Biogeochemistry KW - Biogeochemical cycles KW - Biomass KW - Satellites KW - Satellite sensing KW - USA KW - Coastal zone KW - Satellite data KW - Community composition KW - Community structure KW - abundance KW - O 1070:Ecology/Community Studies KW - M2 551.583:Variations (551.583) KW - Q1 08422:Environmental effects KW - D 04030:Models, Methods, Remote Sensing KW - ENA 12:Oceans & Estuaries KW - K 03310:Genetics & Taxonomy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911154996?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remote+Sensing+of+Environment&rft.atitle=Remote+sensing+of+phytoplankton+community+composition+along+the+northeast+coast+of+the+United+States&rft.au=Pan%2C+Xiaoju%3BMannino%2C+Antonio%3BMarshall%2C+Harold+G%3BFilippino%2C+Katherine+C%3BMulholland%2C+Margaret+R&rft.aulast=Pan&rft.aufirst=Xiaoju&rft.date=2011-12-15&rft.volume=115&rft.issue=12&rft.spage=3731&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&rft_id=info:doi/10.1016%2Fj.rse.2011.09.011 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-12-01 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Chlorophylls; Satellite sensing; Community composition; Biogeochemistry; Climate change; Remote sensing; Man-induced effects; Phytoplankton; Population dynamics; Chlorophyll; Surface water; Climatic changes; Abundance; Diatoms; Biomass; Satellites; Community structure; Pigments; Seasonal variations; Coasts; Satellite data; Ecosystems; Remote sensing of environment; Biogeochemical cycles; Coastal zone; taxonomy; abundance; Bacillariophyceae; USA DO - http://dx.doi.org/10.1016/j.rse.2011.09.011 ER - TY - JOUR T1 - Optimized split-window coefficients for deriving surface temperatures from inland water bodies AN - 911154267; 16077238 AB - Large inland water bodies constituting lakes, reservoirs and inland-seas are excellent proxy indicators for climate change. Using thermal infrared satellite data, a recent study found that a global set of inland water bodies showed significant warming in seasonal nighttime Lake Surface Water Temperatures (LSWTs) between 1985 and 2009. Split-window land surface temperature (LST) retrievals are typically tuned for a broad range of land surface emissivities and global atmospheric conditions, and are not optimized for inland water body surfaces, whereas split-window sea-surface temperatures (SSTs) are only tuned for a single emissivity (water), but over ocean atmospheres. Over inland water bodies, these two approaches can lead to region dependent errors in LSWTs, spurious trends, and inconsistencies between sensors in the long-term temperature record of inland water bodies. To address this issue, the primary goal of this paper was to develop a methodology for deriving a set of optimized split-window coefficients, individually tuned for the regional atmospheric conditions of 169 globally distributed, saline and freshwater inland water bodies from multiple satellite sensors including the Moderate Resolution Imaging Spectroradiometer (MODIS) on Terra and Aqua; Along Track Scanning Radiometer (ATSR) including ATSR-1, ATSR-2, AATSR; and Advanced Very High Resolution Radiometer (AVHRR-3). The new Inland Water-body Surface Temperature (IWbST) v1.0 algorithm was applied to Terra MODIS and Advanced Along Track Scanning Radiometer (AATSR) data and validated with in situ water temperature data from sites with widely contrasting atmospheric conditions: Lake Tahoe in California/Nevada, a high-elevation cool and dry site, and the Salton Sea in California, a low-elevation warm and humid site. Analysis showed improved accuracy in LSWTs in terms of bias and RMSE when compared to the standard MODIS LST and AATSR SST products. For example, the IWbST RMSE at Salton Sea was reduced by 0.4K when compared to the operational MODIS product. For the AATSR data, the IWbST RMSE was reduced by 0.36K at Tahoe and 0.29K at Salton Sea when compared to results obtained using the operational AATSR split-window coefficients. The IWbST improvements are significant in relation to the current accuracy of water temperature retrievals from space (<0.5K), and will enable the derivation of long-term, accurate LSWTs consistently across multiple sensors for climate studies. JF - Remote Sensing of Environment AU - Hulley, Glynn C AU - Hook, Simon J AU - Schneider, Philipp AD - Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA, glynn.hulley@jpl.nasa.gov Y1 - 2011/12/15/ PY - 2011 DA - 2011 Dec 15 SP - 3758 EP - 3769 PB - Elsevier B.V., Box 882 New York NY 10159 United States VL - 115 IS - 12 SN - 0034-4257, 0034-4257 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Environment Abstracts; Ecology Abstracts; Sustainability Science Abstracts; Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - Surface temperature KW - Lakes KW - Split-window coefficients KW - Warming KW - MODIS KW - ATSR KW - AVHRR KW - Remote Sensing KW - Surface temperatures KW - Inland waters KW - Water reservoirs KW - Water Temperature KW - Body temperature KW - Sensors KW - Climatic changes KW - Algorithms KW - Surface Water KW - Water temperatures KW - Emissivity KW - INE, USA, California KW - Seasonal variations KW - USA, California, Salton Sea KW - Satellite Technology KW - Freshwater environments KW - Water temperature KW - imaging KW - Temperature trends KW - Water temperature data KW - Surface water KW - Climate change KW - Remote sensing KW - USA, Nevada KW - Radiometers KW - Nighttime KW - USA, California, Tahoe L. KW - MODIS (Moderate Resolution Imaging Spectrometer) KW - Sea surface temperatures KW - Atmospheric conditions KW - Inland water KW - Data processing KW - Mathematical models KW - Climates KW - Climate KW - Temperature KW - Satellites KW - emissivity KW - Satellite data KW - Scanning KW - Oceans KW - Global warming KW - water temperature KW - SW 5040:Data acquisition KW - M2 551.583:Variations (551.583) KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development KW - D 04030:Models, Methods, Remote Sensing KW - Q2 09244:Air-sea coupling KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911154267?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remote+Sensing+of+Environment&rft.atitle=Optimized+split-window+coefficients+for+deriving+surface+temperatures+from+inland+water+bodies&rft.au=Hulley%2C+Glynn+C%3BHook%2C+Simon+J%3BSchneider%2C+Philipp&rft.aulast=Hulley&rft.aufirst=Glynn&rft.date=2011-12-15&rft.volume=115&rft.issue=12&rft.spage=3758&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&rft_id=info:doi/10.1016%2Fj.rse.2011.09.014 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-12-01 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Radiometers; Emissivity; Inland waters; Mathematical models; Water reservoirs; Sensors; Climate change; Remote sensing; Water temperature data; Data processing; Body temperature; Freshwater environments; Surface water; Climatic changes; Climate; Algorithms; Water temperature; Satellites; imaging; Lakes; Scanning; Nighttime; Oceans; Atmospheric conditions; Surface temperatures; Satellite data; Global warming; Temperature trends; MODIS (Moderate Resolution Imaging Spectrometer); Sea surface temperatures; Water temperatures; Inland water; Temperature; Seasonal variations; water temperature; emissivity; Remote Sensing; Satellite Technology; Water Temperature; Climates; Surface Water; INE, USA, California; USA, California, Tahoe L.; USA, Nevada; USA, California, Salton Sea DO - http://dx.doi.org/10.1016/j.rse.2011.09.014 ER - TY - NEWS T1 - FLEX-ible Insight Into Flame Behavior AN - 911750692 JF - UPI Space Daily AU - Mike Giannone for Glenn Research Center Y1 - 2011/12/14/ PY - 2011 DA - 2011 Dec 14 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911750692?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=FLEX-ible+Insight+Into+Flame+Behavior&rft.au=Mike+Giannone+for+Glenn+Research+Center&rft.aulast=Mike+Giannone+for+Glenn+Research+Center&rft.aufirst=&rft.date=2011-12-14&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-12-19 ER - TY - NEWS T1 - Total Eclipse of the Moon AN - 916240654 JF - UPI Space Daily AU - Dr. Tony Phillips for NASA Science News Y1 - 2011/12/13/ PY - 2011 DA - 2011 Dec 13 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/916240654?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Total+Eclipse+of+the+Moon&rft.au=Dr.+Tony+Phillips+for+NASA+Science+News&rft.aulast=Dr.+Tony+Phillips+for+NASA+Science+News&rft.aufirst=&rft.date=2011-12-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2012-01-16 ER - TY - JOUR T1 - IMAGING THE TIME EVOLUTION OF ETA CARINAE'S COLLIDING WINDS WITH HST* AN - 920809686; 16204857 AB - We report new Hubble Space Telescope/Space Telescope Imaging Spectrograph observations that map the high-ionization forbidden line emission in the inner arcsecond of Eta Car, the first that fully image the extended wind-wind interaction region of the massive colliding wind binary. These observations were obtained after the 2009.0 periastron at orbital phases 0.08,0.163, and 0.323 of the 5.54 year spectroscopic cycle. We analyze the variations in brightness and morphology of the emission, and find that blueshifted emission (-400 to -200 km s super(-1)) is symmetric and elongated along the northeast-southwest axis, while the redshifted emission (+100 to +200 km s super(-1)) is asymmetric and extends to the north-northwest. Comparison with synthetic images generated from a three-dimensional (3D) dynamical model strengthens the 3D orbital orientation found by Madura et al., with an inclination of i approximately 138 degree , an argument of periapsis of omega approximately 270 degree , and an orbital axis that is aligned at the same position angle on the sky as the symmetry axis of the Homunculus, 312 degree . We discuss the potential that these and future mappings have for constraining the stellar parameters of the companion star and the long-term variability of the system. JF - Astrophysical Journal Letters AU - Gull, Theodore R Y1 - 2011/12/10/ PY - 2011 DA - 2011 Dec 10 PB - Institute of Physics Publishing Inc., The Public Ledger Building, Suite 929 Philadelphia PA 19106 United States IS - 1 SN - 2041-8205, 2041-8205 KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - Telescopes KW - Binary stars KW - Morphology KW - Emissions KW - Hubble Space Telescope KW - Stellar investigations KW - Mapping KW - Atmospheric pollution by motor vehicles KW - P 0000:AIR POLLUTION KW - M2 524:Stars, Universe (524) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/920809686?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrophysical+Journal+Letters&rft.atitle=IMAGING+THE+TIME+EVOLUTION+OF+ETA+CARINAE%27S+COLLIDING+WINDS+WITH+HST*&rft.au=Gull%2C+Theodore+R&rft.aulast=Gull&rft.aufirst=Theodore&rft.date=2011-12-10&rft.volume=&rft.issue=1&rft.spage=jQuery1323914492442%3D%2748%27%3E&rft.isbn=&rft.btitle=&rft.title=Astrophysical+Journal+Letters&rft.issn=20418205&rft_id=info:doi/10.1088%2F2041-8205%2F743%2F1%2FL3 L2 - http://iopscience.iop.org/2041-8205/743/1/L3 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-02-01 N1 - Last updated - 2015-11-16 N1 - SubjectsTermNotLitGenreText - Telescopes; Binary stars; Hubble Space Telescope; Stellar investigations; Atmospheric pollution by motor vehicles; Morphology; Emissions; Mapping DO - http://dx.doi.org/10.1088/2041-8205/743/1/L3 ER - TY - JOUR T1 - Sputtering from a porous material by penetrating ions AN - 1734269930; 2015-111327 AB - Porous materials are ubiquitous in the universe and weathering of porous surfaces plays an important role in the evolution of planetary and interstellar materials. Sputtering of porous solids in particular can influence atmosphere formation, surface reflectivity, and the production of the ambient gas around materials in space. Several previous studies and models have shown a large reduction in the sputtering of a porous solid compared to the sputtering of the non-porous solid. Using molecular dynamics simulations we study the sputtering of a nanoporous solid with 55% of the solid density. We calculate the electronic sputtering induced by a fast, penetrating ion, using a thermal spike representation of the deposited energy. We find that sputtering for this porous solid is, surprisingly, the same as that for a full-density solid, even though the sticking coefficient is high. Copyright 2011. The American Astronomical Society. All rights reserved. JF - The Astrophysical Journal. Letters AU - Rodriguez-Nieva, J F AU - Bringa, E M AU - Cassidy, T A AU - Johnson, R E AU - Caro, A AU - Fama, M AU - Loeffler, M J AU - Baragiola, R A AU - Farkas, D Y1 - 2011/12/10/ PY - 2011 DA - 2011 Dec 10 EP - Paper no. L5 PB - IOP Publishing, Bristol VL - 743 IS - 1 SN - 2041-8205, 2041-8205 KW - icy satellites KW - penetration KW - Europa Satellite KW - interstellar medium KW - atmosphere KW - porous materials KW - Galilean satellites KW - interplanetary space KW - simulation KW - ions KW - weathering KW - porosity KW - sputtering KW - models KW - planets KW - ice KW - molecular dynamics KW - satellites KW - nanoparticles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1734269930?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Astrophysical+Journal.+Letters&rft.atitle=Sputtering+from+a+porous+material+by+penetrating+ions&rft.au=Rodriguez-Nieva%2C+J+F%3BBringa%2C+E+M%3BCassidy%2C+T+A%3BJohnson%2C+R+E%3BCaro%2C+A%3BFama%2C+M%3BLoeffler%2C+M+J%3BBaragiola%2C+R+A%3BFarkas%2C+D&rft.aulast=Rodriguez-Nieva&rft.aufirst=J&rft.date=2011-12-10&rft.volume=743&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+Astrophysical+Journal.+Letters&rft.issn=20418205&rft_id=info:doi/10.1088%2F2041-8205%2F743%2F1%2FL5 L2 - http://iopscience.iop.org/2041-8205 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 26 N1 - Document feature - illus. N1 - Last updated - 2015-11-19 N1 - SubjectsTermNotLitGenreText - atmosphere; Europa Satellite; Galilean satellites; ice; icy satellites; interplanetary space; interstellar medium; ions; models; molecular dynamics; nanoparticles; penetration; planets; porosity; porous materials; satellites; simulation; sputtering; weathering DO - http://dx.doi.org/10.1088/2041-8205/743/1/L5 ER - TY - JOUR T1 - Dynamics of dust particles released from Oort Cloud comets and their contribution to radar meteors AN - 1351600099; 2013-040690 AB - The Oort Cloud Comets (OCCs), exemplified by the Great Comet of 1997 (Hale-Bopp), are occasional visitors from the heatless periphery of the solar system. Previous works hypothesized that a great majority of OCCs must physically disrupt after one or two passages through the inner solar system, where strong thermal gradients can cause phase transitions or volatile pressure buildup. Here we study the fate of small debris particles produced by OCC disruptions to determine whether the imprints of a hypothetical population of OCC meteoroids can be found in the existing meteor radar data. We find that OCC particles with diameters D or = 1 mm have a very low Earth-impact probability. The intermediate particle sizes, D approximately 100 mu m, represent a sweet spot. About 1% of these particles orbitally evolve by Poynting-Robertson drag to reach orbits with semimajor axis a approximately 1 AU. They are expected to produce meteors with radiants near the apex of Earth's orbital motion. We find that the model distributions of their impact speeds and orbits provide a good match to radar observations of apex meteors, except for the eccentricity distribution, which is more skewed toward e approximately 1 in our model. Finally, we propose an explanation for the long-standing problem in meteor science related to the relative strength of apex and helion/antihelion sources. As we show in detail, the observed trend, with the apex meteors being more prominent in observations of highly sensitive radars, can be related to orbital dynamics of particles released on the long-period orbits. Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The = Astrophysical Journal AU - Nesvorny, David AU - Vokrouhlicky, David AU - Pokorny, Petr AU - Janches, Diego Y1 - 2011/12/10/ PY - 2011 DA - 2011 Dec 10 SP - 12 PB - University of Chicago Press for the American Astronomical Society, Chicago, IL VL - 743 IS - 1 SN - 0004-637X, 0004-637X KW - Oort Cloud KW - orbits KW - Oort Cloud comets KW - statistical analysis KW - meteoroids KW - eccentricity KW - models KW - meteors KW - spatial distribution KW - cosmic dust KW - comets KW - dynamics KW - Poynting-Robertson drag KW - probability KW - cometary dust KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1351600099?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+%3D+Astrophysical+Journal&rft.atitle=Dynamics+of+dust+particles+released+from+Oort+Cloud+comets+and+their+contribution+to+radar+meteors&rft.au=Nesvorny%2C+David%3BVokrouhlicky%2C+David%3BPokorny%2C+Petr%3BJanches%2C+Diego&rft.aulast=Nesvorny&rft.aufirst=David&rft.date=2011-12-10&rft.volume=743&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+%3D+Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F743%2F1%2F37 L2 - http://iopscience.iop.org/0004-637X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 55 N1 - PubXState - IL N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2013-05-16 N1 - SubjectsTermNotLitGenreText - cometary dust; comets; cosmic dust; dynamics; eccentricity; meteoroids; meteors; models; Oort Cloud; Oort Cloud comets; orbits; particles; Poynting-Robertson drag; probability; spatial distribution; statistical analysis DO - http://dx.doi.org/10.1088/0004-637X/743/1/37 ER - TY - CPAPER T1 - Leukemia Microenvironment-Specific Galectin-3 Expression of Leukemic Cells Promotes Malignant Niche Formation and Bone Marrow Lodgment of Leukemic Cells in Chronic Myelogenous Leukemia T2 - 53rd Annual Meeting of the American Society of Hematology (ASH 2011) AN - 1312968430; 6122452 JF - 53rd Annual Meeting of the American Society of Hematology (ASH 2011) AU - Kuroda, Junya AU - Yamamoto, Mio AU - Ashihara, Eishi AU - Nagoshi, Hisao AU - Kobayashi, Tsutomu AU - Matsumoto, Yosuke AU - Sasaki, Nasa AU - Shimura, Yuji AU - Kiyota, Miki AU - Nakayama, Ryuko AU - Horiike, Shigeo AU - Maekawa, Taira AU - Taniwaki, Masafumi Y1 - 2011/12/10/ PY - 2011 DA - 2011 Dec 10 KW - Chronic myeloid leukemia KW - Bone marrow KW - Niches KW - galectin-3 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312968430?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=53rd+Annual+Meeting+of+the+American+Society+of+Hematology+%28ASH+2011%29&rft.atitle=Leukemia+Microenvironment-Specific+Galectin-3+Expression+of+Leukemic+Cells+Promotes+Malignant+Niche+Formation+and+Bone+Marrow+Lodgment+of+Leukemic+Cells+in+Chronic+Myelogenous+Leukemia&rft.au=Kuroda%2C+Junya%3BYamamoto%2C+Mio%3BAshihara%2C+Eishi%3BNagoshi%2C+Hisao%3BKobayashi%2C+Tsutomu%3BMatsumoto%2C+Yosuke%3BSasaki%2C+Nasa%3BShimura%2C+Yuji%3BKiyota%2C+Miki%3BNakayama%2C+Ryuko%3BHoriike%2C+Shigeo%3BMaekawa%2C+Taira%3BTaniwaki%2C+Masafumi&rft.aulast=Kuroda&rft.aufirst=Junya&rft.date=2011-12-10&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=53rd+Annual+Meeting+of+the+American+Society+of+Hematology+%28ASH+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://ash.confex.com/ash/2011/webprogram/meeting.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - NEWS T1 - Growing Knowledge in Space AN - 909067477 JF - UPI Space Daily AU - Stephanie Covey for NASA Kennedy Space Center Y1 - 2011/12/07/ PY - 2011 DA - 2011 Dec 07 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/909067477?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Growing+Knowledge+in+Space&rft.au=Stephanie+Covey+for+NASA+Kennedy+Space+Center&rft.aulast=Stephanie+Covey+for+NASA+Kennedy+Space+Center&rft.aufirst=&rft.date=2011-12-07&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-12-07 ER - TY - CPAPER T1 - Indigenous management and the ecological role of Andean peatlands (bofedales) in the context of global environmental change T2 - 25th International Congress for Conservation Biology (ICCB 2011) AN - 1312938723; 6040219 JF - 25th International Congress for Conservation Biology (ICCB 2011) AU - Yager, K AU - Tupayachi, A AU - Meneses, R AU - Garcia, C AU - Beck, S Y1 - 2011/12/05/ PY - 2011 DA - 2011 Dec 05 KW - Environmental changes KW - Peatlands KW - Climatic changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312938723?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=25th+International+Congress+for+Conservation+Biology+%28ICCB+2011%29&rft.atitle=Indigenous+management+and+the+ecological+role+of+Andean+peatlands+%28bofedales%29+in+the+context+of+global+environmental+change&rft.au=Yager%2C+K%3BTupayachi%2C+A%3BMeneses%2C+R%3BGarcia%2C+C%3BBeck%2C+S&rft.aulast=Yager&rft.aufirst=K&rft.date=2011-12-05&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=25th+International+Congress+for+Conservation+Biology+%28ICCB+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.conbio.org/Activities/Meetings/2011/program/ICCB2011_Programme_web.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Initial steps toward a U.S. Biodiversity Observation Network T2 - 25th International Congress for Conservation Biology (ICCB 2011) AN - 1312923900; 6039508 JF - 25th International Congress for Conservation Biology (ICCB 2011) AU - Leidner, A AU - Howie, S AU - Geller, G Y1 - 2011/12/05/ PY - 2011 DA - 2011 Dec 05 KW - USA KW - Biological diversity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312923900?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=25th+International+Congress+for+Conservation+Biology+%28ICCB+2011%29&rft.atitle=Initial+steps+toward+a+U.S.+Biodiversity+Observation+Network&rft.au=Leidner%2C+A%3BHowie%2C+S%3BGeller%2C+G&rft.aulast=Leidner&rft.aufirst=A&rft.date=2011-12-05&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=25th+International+Congress+for+Conservation+Biology+%28ICCB+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.conbio.org/Activities/Meetings/2011/program/ICCB2011_Programme_web.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Spaceflight alters the migratory ability of stem cell derived keratinocytes resulting in decreased wound healing potential T2 - 2011 Annual Meeting of the American Society for Cell Biology (ASCB 2011) AN - 1313070079; 6116336 JF - 2011 Annual Meeting of the American Society for Cell Biology (ASCB 2011) AU - Finkelstein, H AU - Blaber, E AU - Dvorochkin, N AU - Globus, R AU - Burns, B AU - Almeida, E Y1 - 2011/12/03/ PY - 2011 DA - 2011 Dec 03 KW - Stem cells KW - Wound healing KW - Cell migration KW - Keratinocytes KW - Space flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313070079?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Society+for+Cell+Biology+%28ASCB+2011%29&rft.atitle=Spaceflight+alters+the+migratory+ability+of+stem+cell+derived+keratinocytes+resulting+in+decreased+wound+healing+potential&rft.au=Finkelstein%2C+H%3BBlaber%2C+E%3BDvorochkin%2C+N%3BGlobus%2C+R%3BBurns%2C+B%3BAlmeida%2C+E&rft.aulast=Finkelstein&rft.aufirst=H&rft.date=2011-12-03&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Society+for+Cell+Biology+%28ASCB+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.ascb.org/files/Past-AM-Meetings/2011ASCBFullProgram.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - Release of AGAP aerogeophysical data through the integrated Earth data applications facility AN - 959101700; 2012-035966 AB - During the International Polar Year 2007-2009, scientists from six nations collaborated on a multi-disciplinary investigation of the Gamburtsevs, the least explored mountain range on Earth buried beneath the East Antarctic Ice Sheet, as part of the Antarctic Gamburtsev Province (AGAP) project. The AGAP project collected more than 120,000 line km of new aerogeophysical data using two Twin Otter aircraft. Data included ice penetrating radar, magnetometer, gravimeter and laser altimeter measurements. The main AGAP survey grid included north-south lines spaced 5 km apart, with crossing lines every 33 km and transects over the Vostok Subglacial Highlands, South Pole and southern Recovery lakes region. 150-MHz ice penetrating radars with bandwidths of 15 to 20 MHz measured ice thickness, bedrock topography, sub-ice hydrology, and produced high-resolution images of the internal structure of the East Antarctic Ice Sheet. Magnetic data map geologic structures across the mountain range, while gravity data provide new insights into the tectonic evolution and crustal thickness of the region. A swath-scanning laser altimeter with a spatial resolution of 2 meters measured elevation and details of the ice surface. Complete AGAP datasets are now in the process of becoming publicly available and freely accessible through the Java-based data visualization tool GeoMapApp (http://www.geomapapp.org), and the Antarctic & Southern Ocean Data Portal (http://www.marine-geo.org/tools/search/entry.php?id=AGAP (sub G) AMBIT), both part of the Integrated Earth Data Applications (IEDA) Data Facility (http://www.iedadata.org) based at the Lamont-Doherty Earth Observatory of Columbia University. AGAP data will also be accessible through the Natural Environment Research Council (NERC) Polar Data Center, based at the British Antarctic Survey (http://www.antarctica.ac.uk/bas (sub r) esearch/data/index.php) and at the Center for the Remote Sensing of Ice Sheets (https://www.cresis.ku.edu/research/gambit). JF - American Geophysical Union Fall Meeting AU - O'Hara, S H AU - Abdi, A AU - Bonczkowski, Julie AU - Bell, Robin E AU - Frearson, N AU - Ferraccioli, F AU - Corr, H AU - Jordan, Tom A AU - Rose, K C AU - Studinger, Michael AU - Gogineni, P S AU - Braaten, D A AU - Damaske, Detlef AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract C41E EP - 0463 PB - American Geophysical Union, Washington, DC VL - 2011 KW - bedrock KW - geophysical surveys KW - geophysical methods KW - East Antarctic ice sheet KW - radar methods KW - magnetic methods KW - East Antarctica KW - ice sheets KW - South Pole KW - Antarctic ice sheet KW - gravity methods KW - topography KW - Antarctica KW - surveys KW - glacial geology KW - Vostok Station KW - remote sensing KW - airborne methods KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959101700?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Release+of+AGAP+aerogeophysical+data+through+the+integrated+Earth+data+applications+facility&rft.au=O%27Hara%2C+S+H%3BAbdi%2C+A%3BBonczkowski%2C+Julie%3BBell%2C+Robin+E%3BFrearson%2C+N%3BFerraccioli%2C+F%3BCorr%2C+H%3BJordan%2C+Tom+A%3BRose%2C+K+C%3BStudinger%2C+Michael%3BGogineni%2C+P+S%3BBraaten%2C+D+A%3BDamaske%2C+Detlef%3BAnonymous&rft.aulast=O%27Hara&rft.aufirst=S&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.agu.org/cgi-bin/SFgate/SFgate?language=English&verbose=0&listenv=table&application=fm11&convert=&converthl=&refinequery=&formintern=&formextern=&transquery=an%3dc41e&_lines=&multiple=0&descriptor=%2fdata%2fepubs%2fwais%2findexes%2ffm11%2ffm11%7c1000%7c5589%7cRelease%20of%20AGAP%20Aerogeophysical%20Data%20through%20the%20Integrated%20Earth%20Data%20Applications%20Facility%7cHTML%7clocalhost:0%7c%2fdata%2fepubs%2fwais%2findexes%2ffm11%2ffm11%7c16295019%2016300608%20%2fdata2%2fepubs%2fwais%2fdata%2ffm11%2ffm11.txt LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - airborne methods; Antarctic ice sheet; Antarctica; bedrock; East Antarctic ice sheet; East Antarctica; geophysical methods; geophysical surveys; glacial geology; gravity methods; ice sheets; magnetic methods; radar methods; remote sensing; South Pole; surveys; topography; Vostok Station ER - TY - JOUR T1 - Factors Influencing Home-Range Sizes of Eastern Indigo Snakes in Central Florida AN - 954662079; 16387132 AB - Wide-ranging snake species are particularly sensitive to landscape fragmentation, and understanding area requirements is important for their conservation. We used radiotelemetry to quantify how Eastern Indigo Snake home-range sizes were influenced by sex, land cover, and the length of time (weeks) individuals were radio tracked. We found that Eastern Indigo Snakes had the largest home ranges among other snake species studied. Female home ranges averaged 44 and 76 ha, respectively, for kernel and minimum convex polygon estimators. Male home ranges averaged 156 and 202 ha, respectively, for kernel and minimum convex polygon estimators. Many animal species respond to habitat fragmentation by using larger areas than in unfragmented landscapes, but we found that Indigo Snakes in fragmented landscapes used much smaller areas. The length of time that snakes were tracked had almost no influence on home-range size compared to sex and land cover type. Our results suggest that maintaining populations of this large wide-ranging predator will require large conservation areas with minimum fragmentation. JF - Journal of Herpetology AU - Breininger, David R AU - Bolt, MRebecca AU - Legare, Michael L AU - Drese, John H AU - Stolen, Eric D AD - Innovative Health Applications, NASA Ecological Programs, Mail Code IHA-300, Kennedy Space Center, Florida 32899 USA, david.r.breininger@@nasa.gov Y1 - 2011/12// PY - 2011 DA - Dec 2011 SP - 484 EP - 490 PB - Society for the Study of Amphibians and Reptiles VL - 45 IS - 4 SN - 0022-1511, 0022-1511 KW - Animal Behavior Abstracts; Ecology Abstracts; Sustainability Science Abstracts KW - USA, Florida KW - Landscape KW - Predators KW - snakes KW - Habitat fragmentation KW - predators KW - habitat fragmentation KW - Indigo KW - Conservation KW - Kernels KW - Sex KW - Y 25150:General/Miscellaneous KW - M3 1010:Issues in Sustainable Development KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/954662079?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Herpetology&rft.atitle=Factors+Influencing+Home-Range+Sizes+of+Eastern+Indigo+Snakes+in+Central+Florida&rft.au=Breininger%2C+David+R%3BBolt%2C+MRebecca%3BLegare%2C+Michael+L%3BDrese%2C+John+H%3BStolen%2C+Eric+D&rft.aulast=Breininger&rft.aufirst=David&rft.date=2011-12-01&rft.volume=45&rft.issue=4&rft.spage=484&rft.isbn=&rft.btitle=&rft.title=Journal+of+Herpetology&rft.issn=00221511&rft_id=info:doi/10.1670%2F10-176.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-03-01 N1 - Number of references - 66 N1 - Last updated - 2012-05-07 N1 - SubjectsTermNotLitGenreText - Landscape; Kernels; Conservation; Predators; Habitat fragmentation; Sex; Indigo; snakes; habitat fragmentation; predators; USA, Florida DO - http://dx.doi.org/10.1670/10-176.1 ER - TY - JOUR T1 - A Continental-Scale Classification of Rainfall Seasonality Regimes in Africa Based on Gridded Precipitation and Land Surface Temperature Products AN - 923197723; 16303470 AB - A classification of rainfall seasonality regimes in Africa was derived from gridded rainfall and land surface temperature products. By adapting a method that goes back to Walter and Lieth's approach of presenting climatic diagrams, relationships between estimated rainfall and temperature were used to determine the presence and pattern of humid, arid, and dry months. The temporal sequence of humid, arid, and dry months defined nonseasonal as well as single-, dual-, and multiple-wet-season regimes with one or more rainfall peaks per wet season. The use of gridded products resulted in a detailed, spatially continuous classification for the entire African continent at two different spatial resolutions, which compared well to local-scale studies based on station data. With its focus on rainfall patterns at fine spatial scales, this classification is complementary to coarser and more genetic classifications based on atmospheric driving forces. An analysis of the stability of the resulting seasonality regimes shows areas of relatively high year-to-year stability in the single-wet-season regimes and areas of lower year-to-year stability in the dual- and multiple-wet-season regimes as well as in transition zones. JF - Journal of Applied Meteorology and Climatology AU - Herrmann, Stefanie M AU - Mohr, Karen I AD - Hydrospheric and Biospheric Sciences Laboratory, NASA Goddard Space Flight Center, and Science Systems and Applications, Inc., Greenbelt, Maryland Y1 - 2011/12// PY - 2011 DA - Dec 2011 SP - 2504 EP - 2513 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 50 IS - 12 SN - 1558-8424, 1558-8424 KW - Aqualine Abstracts; Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Hydrological Regime KW - Surface temperatures KW - Ecological distribution KW - Rainfall KW - Wet season KW - Rainy season KW - Classification KW - Climatology KW - Seasonality KW - Temperature effects KW - Climate KW - Temperature KW - Transition Zone KW - Precipitation KW - Surface temperature KW - Rainfall patterns KW - Africa KW - Q2 09243:Structure, mechanics and thermodynamics KW - AQ 00001:Water Resources and Supplies KW - SW 0815:Precipitation KW - M2 551.578.1:Liquid (551.578.1) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/923197723?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Meteorology+and+Climatology&rft.atitle=A+Continental-Scale+Classification+of+Rainfall+Seasonality+Regimes+in+Africa+Based+on+Gridded+Precipitation+and+Land+Surface+Temperature+Products&rft.au=Herrmann%2C+Stefanie+M%3BMohr%2C+Karen+I&rft.aulast=Herrmann&rft.aufirst=Stefanie&rft.date=2011-12-01&rft.volume=50&rft.issue=12&rft.spage=2504&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Meteorology+and+Climatology&rft.issn=15588424&rft_id=info:doi/10.1175%2FJAMC-D-11-024.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-02-01 N1 - Number of references - 45 N1 - Last updated - 2014-05-02 N1 - SubjectsTermNotLitGenreText - Temperature effects; Seasonality; Rainy season; Classification; Rainfall; Ecological distribution; Climate; Climatology; Surface temperature; Surface temperatures; Rainfall patterns; Precipitation; Wet season; Hydrological Regime; Temperature; Transition Zone; Africa DO - http://dx.doi.org/10.1175/JAMC-D-11-024.1 ER - TY - JOUR T1 - Constraints on determining the eruption style and composition of terrestrial lavas from space AN - 911678324; 2012-007713 AB - The surface temperatures of active lavas relate to cooling rates, chemistry, and eruption style. We analyzed 61 hyperspectral satellite images acquired by the National Aeronautics and Space Administration's Earth Observing-1 (EO-1) Hyperion imaging spectrometer to document the surface temperature distributions of active lavas erupted at 13 volcanoes. Images were selected to encompass the range of common lava eruption styles, specifically, lava fountains, flows, lakes, and domes. Our results reveal temperature distributions for terrestrial lavas that correlate with composition (i.e., a statistically significant difference in the highest temperatures retrieved for mafic lavas and intermediate and felsic lavas) and eruption style. Maximum temperatures observed for mafic lavas are approximately 200 degrees C higher than for intermediate and felsic lavas. All eruption styles exhibit a low-temperature mode at approximately 300 degrees C; lava fountains and "a" a (super -) flows also exhibit a higher temperature mode at approximately 700 degrees C. The observed differences between the temperatures are consistent with the contrasting rates at which the lava surfaces are thermally renewed. Eruption styles that allow persistent and pervasive thermal renewal of the lava surface (e.g., fractured crusts on channel-fed "a" a (super -) flows) exhibit a bimodal temperature distribution; eruption styles that do not (e.g., the continuous skin of pahoehoe lavas) exhibit a single mode. We conclude that insights into composition and eruption style can only be gained remotely by analyzing a large spatio-temporal sample of data. This has implications for determining composition and eruption style at the Jovian moon Io, for which no in situ validation is available. JF - Geology (Boulder) AU - Wright, Robert AU - Glaze, Lori AU - Baloga, Stephen M Y1 - 2011/12// PY - 2011 DA - December 2011 SP - 1127 EP - 1130 PB - Geological Society of America (GSA), Boulder, CO VL - 39 IS - 12 SN - 0091-7613, 0091-7613 KW - hyperspectral analysis KW - terrestrial environment KW - lava lakes KW - lava flows KW - lava fountains KW - satellite methods KW - temperature KW - Earth Observing System KW - lava KW - eruptions KW - volcanoes KW - thermal emission KW - Hyperion instrument KW - instruments KW - image analysis KW - remote sensing KW - 24:Quaternary geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911678324?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geology+%28Boulder%29&rft.atitle=Constraints+on+determining+the+eruption+style+and+composition+of+terrestrial+lavas+from+space&rft.au=Wright%2C+Robert%3BGlaze%2C+Lori%3BBaloga%2C+Stephen+M&rft.aulast=Wright&rft.aufirst=Robert&rft.date=2011-12-01&rft.volume=39&rft.issue=12&rft.spage=1127&rft.isbn=&rft.btitle=&rft.title=Geology+%28Boulder%29&rft.issn=00917613&rft_id=info:doi/10.1130%2FG32341.1 L2 - http://www.gsajournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States | Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 22 N1 - PubXState - CO N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GLGYBA N1 - SubjectsTermNotLitGenreText - Earth Observing System; eruptions; Hyperion instrument; hyperspectral analysis; image analysis; instruments; lava; lava flows; lava fountains; lava lakes; remote sensing; satellite methods; temperature; terrestrial environment; thermal emission; volcanoes DO - http://dx.doi.org/10.1130/G32341.1 ER - TY - JOUR T1 - Power spectral analysis of Jupiter's clouds and kinetic energy from Cassini AN - 911161836; 16077364 AB - We present suggestive evidence for an inverse energy cascade within Jupiter's atmosphere through a calculation of the power spectrum of its kinetic energy and its cloud patterns. Using Cassini observations, we composed full-longitudinal mosaics of Jupiter's atmosphere at several wavelengths. We also utilized image pairs derived from these observations to generate full-longitudinal maps of wind vectors and atmospheric kinetic energy within Jupiter's troposphere. We computed power spectra of the image mosaics and kinetic energy maps using spherical harmonic analysis. Power spectra of Jupiter's cloud patterns imaged at certain wavelengths resemble theoretical spectra of two-dimensional turbulence, with power-law slopes near -5/3 and -3 at low and high wavenumbers, respectively. The slopes of the kinetic energy power spectrum are also near -5/3 at low wavenumbers. At high wavenumbers, however, the spectral slopes are relatively flatter than the theoretical prediction of -3. In addition, the image mosaic and kinetic energy power spectra differ with respect to the location of the transition in slopes. The transition in slope is near planetary wavenumber 70 for the kinetic energy spectra, but is typically above 200 for the image mosaic spectra. Our results also show the importance of calculating spectral slopes from full 2D velocity maps rather than 1D zonal mean velocity profiles, since at large wavenumbers the spectra differ significantly, though at low wavenumbers, the 1D zonal and full 2D kinetic energy spectra are practically indistinguishable. Furthermore, the difference between the image and kinetic energy spectra suggests some caution in the interpretation of power spectrum results solely from image mosaics and its significance for the underlying dynamics. Finally, we also report prominent variations in kinetic energy within the equatorial jet stream that appear to be associated with the 5 mu m hotspots. Other eddies are present within the flow collar of the Great Red Spot, suggesting caution when interpreting snapshots of the flow inside these features as representative of a time-averaged state. JF - ICARUS AU - Choi, David S AU - Showman, Adam P AD - Department of Planetary Sciences, University of Arizona, Tucson, AZ 85721, USA, david.s.choi@nasa.gov Y1 - 2011/12// PY - 2011 DA - December 2011 SP - 597 EP - 609 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 216 IS - 2 SN - 0019-1035, 0019-1035 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Jupiter, Atmosphere KW - Atmospheres, Dynamics KW - Atmospheres, Structure KW - Prediction KW - Cloud patterns KW - Hot spots KW - Jupiter KW - Maps KW - Streams KW - Atmosphere KW - Kinetic Energy KW - Wind speed KW - Wave spectra KW - Harmonic analysis KW - Slopes KW - U.S. space probe, Cassini KW - Energy spectra KW - Power spectra KW - Jet stream KW - Spectral analysis KW - Velocity KW - Troposphere KW - Wind direction KW - Wavelengths KW - Jupiter atmosphere KW - Clouds KW - Velocity profiles KW - Q2 09243:Structure, mechanics and thermodynamics KW - AQ 00001:Water Resources and Supplies KW - M2 523.4:Planets (523.4) KW - SW 0540:Properties of water UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911161836?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ICARUS&rft.atitle=Power+spectral+analysis+of+Jupiter%27s+clouds+and+kinetic+energy+from+Cassini&rft.au=Choi%2C+David+S%3BShowman%2C+Adam+P&rft.aulast=Choi&rft.aufirst=David&rft.date=2011-12-01&rft.volume=216&rft.issue=2&rft.spage=597&rft.isbn=&rft.btitle=&rft.title=ICARUS&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2011.10.001 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-12-01 N1 - Last updated - 2016-02-04 N1 - SubjectsTermNotLitGenreText - Clouds; Wave spectra; Harmonic analysis; Velocity profiles; Hot spots; Energy spectra; Jet stream; Spectral analysis; Troposphere; Wind speed; Jupiter atmosphere; Cloud patterns; U.S. space probe, Cassini; Power spectra; Jupiter; Wind direction; Prediction; Velocity; Maps; Slopes; Atmosphere; Streams; Wavelengths; Kinetic Energy DO - http://dx.doi.org/10.1016/j.icarus.2011.10.001 ER - TY - JOUR T1 - Multi-spectral sensitivity studies for the retrieval of tropospheric and lowermost tropospheric ozone from simulated clear-sky GEO-CAPE measurements AN - 911153580; 15965701 AB - One of the important science requirements of the Geostationary Coastal and Air Pollution Events (GEO-CAPE) mission is to be able to measure ozone with two degrees of freedom in the troposphere and sensitivity in the lowest 2 km (lowermost troposphere, LMT), in order to characterize air quality and boundary layer transport of pollution. Currently available remote sensing techniques utilize backscattered solar ultraviolet (UV) radiances or thermal infrared (TIR) emissions to perform ozone retrievals. However, in the TIR, measurement sensitivity to the LMT requires high thermal contrast between the Earth's surface and the near-surface (tens to hundreds of meters above surface) atmosphere, while in the UV, the measurement sensitivity to the LMT is low because of Rayleigh scattering. In this paper, we explore the feasibility of using multi-spectral intensity measurements in the UV, visible (VIS), mid infrared (MIR) and TIR, and polarization measurements in the UV/VIS, to improve tropospheric and lowermost tropospheric ozone retrievals.Simulations for 16 cloud and aerosol free atmospheric profiles spanning a range of ozone mixing ratios indicate that adding VIS measurements to UV measurements significantly enhances the sensitivity to lowermost tropospheric ozone, but only makes a slight improvement to the total degrees of freedom for signal (DFS). On the other hand, the combination of UV and TIR significantly improves the total DFS as well as the lowermost tropospheric DFS.The analysis presented here is a necessary and important first step for defining spectral regions that can meet the GEO-CAPE measurement requirements, and subsequently, the requirements for instrumentation. In this work, the principle of multi-spectral retrievals has been extended from previously published literature and we show that the UV + VIS, UV + TIR and UV + VIS + TIR combinations have the potential to meet the GEO-CAPE measurement requirements for tropospheric ozone. Our analysis includes errors from water and surface properties; further analysis is needed to include temperature, additional gas interferents, clouds, aerosols and more realistic surface properties. These simulations must be run on a much larger dataset, followed by OSSEs (Observing System Simulation Experiments), where simulated retrievals are assimilated into chemical-transport models, to quantitatively assess the impact of the proposed measurements for constraining the spatiotemporal distribution of ozone in the LMT for basic science studies and applications such as air quality forecasts. JF - Atmospheric Environment AU - Natraj, Vijay AU - Liu, Xiong AU - Kulawik, Susan AU - Chance, Kelly AU - Chatfield, Robert AU - Edwards, David P AU - Eldering, Annmarie AU - Francis, Gene AU - Kurosu, Thomas AU - Pickering, Kenneth AU - Spurr, Robert AU - Worden, Helen AD - Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA, Vijay.Natraj@jpl.nasa.gov Y1 - 2011/12// PY - 2011 DA - December 2011 SP - 7151 EP - 7165 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 45 IS - 39 SN - 1352-2310, 1352-2310 KW - Pollution Abstracts; Environment Abstracts; Meteorological & Geoastrophysical Abstracts KW - Sensitivity KW - Aerosols KW - Ozone measurements KW - Atmospheric pollution KW - Surface water KW - Temperature KW - Troposphere KW - Simulation KW - Air quality KW - Solar ultraviolet irradiance KW - Air pollution KW - Clouds KW - Ozone in troposphere KW - Numerical simulations KW - Earth's surface KW - Ozone KW - Rayleigh scattering KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911153580?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Multi-spectral+sensitivity+studies+for+the+retrieval+of+tropospheric+and+lowermost+tropospheric+ozone+from+simulated+clear-sky+GEO-CAPE+measurements&rft.au=Natraj%2C+Vijay%3BLiu%2C+Xiong%3BKulawik%2C+Susan%3BChance%2C+Kelly%3BChatfield%2C+Robert%3BEdwards%2C+David+P%3BEldering%2C+Annmarie%3BFrancis%2C+Gene%3BKurosu%2C+Thomas%3BPickering%2C+Kenneth%3BSpurr%2C+Robert%3BWorden%2C+Helen&rft.aulast=Natraj&rft.aufirst=Vijay&rft.date=2011-12-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-12-01 N1 - Number of references - 4 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Clouds; Ozone in troposphere; Ozone measurements; Atmospheric pollution; Numerical simulations; Solar ultraviolet irradiance; Air quality; Earth's surface; Rayleigh scattering; Air pollution; Sensitivity; Aerosols; Surface water; Temperature; Simulation; Troposphere; Ozone DO - http://dx.doi.org/10.1016/j.atmosenv.2011.09.014 ER - TY - JOUR T1 - A stochastic-entropic approach to detect persistent low-temperature volcanogenic thermal anomalies AN - 1863568074; 2017-006546 AB - Eruption prediction is a chancy idiosyncratic affair, as volcanoes often manifest waxing and/or waning pre-eruption emission, geodetic, and seismic behavior that is unsystematic. Thus, fundamental to increased prediction accuracy and precision are good and frequent assessments of the time-series behavior of relevant precursor geophysical, geochemical, and geological phenomena, especially when volcanoes become restless. The Advanced Spaceborne Thermal Emission and Reflection radiometer (ASTER), in orbit since 1999 on the NASA Terra Earth Observing System satellite is an important capability for detection of thermal eruption precursors (even subtle ones) and increased passive gas emissions. The unique combination of ASTER high spatial resolution multi-spectral thermal IR imaging data (90 m/pixel; 5 bands in the 8-12 um region), combined with simultaneous visible and near-IR imaging data, and stereo-photogrammetric capabilities make it a useful, especially thermal, precursor detection tool. The JPL ASTER Volcano Archive consisting of 80,000+ASTER volcano images allows systematic analysis of (a) baseline thermal emissions for 1550+ volcanoes, (b) important aspects of the time-dependent thermal variability, and (c) the limits of detection of temporal dynamics of eruption precursors. We are analyzing a catalog of the magnitude, frequency, and distribution of ASTER-documented volcano thermal signatures, compiled from 2000 onward, at 90 m/pixel. Low contrast thermal anomalies of relatively low apparent absolute temperature (e.g., summit lakes, fumarolically altered areas, geysers, very small sub-pixel hotspots), for which the signal-to-noise ratio may be marginal (e.g., scene confusion due to clouds, water and water vapor, fumarolic emissions, variegated ground emissivity, and their combinations), are particularly important to discern and monitor. We have developed a technique to detect persistent hotspots that takes into account in-scene observed pixel joint frequency distributions over time, temperature contrast, and Shannon entropy. Preliminary analyses of Fogo Volcano and Yellowstone hotspots, among others, indicate that this is a very sensitive technique with good potential to be applied over the entire ASTER global night-time archive. We will discuss our progress in creating the global thermal anomaly catalog as well as algorithm approach and results. This work was carried out at the Jet Propulsion Laboratory of the California Institute of Technology under contract to NASA. JF - American Geophysical Union Fall Meeting AU - Pieri, Dave C AU - Baxter, Sean AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract V44C EP - 03 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - imagery KW - entropy KW - fumaroles KW - data processing KW - geodesy KW - thermal anomalies KW - Earth Observing System KW - stochastic processes KW - seismicity KW - data bases KW - thermal emission KW - ASTER instrument KW - time series analysis KW - Yellowstone Hot Spot KW - Fogo KW - statistical analysis KW - prediction KW - indicators KW - deformation KW - models KW - JPL ASTER Volcano Archive KW - eruptions KW - volcanoes KW - signal-to-noise ratio KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1863568074?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Making+amorphous+ferromagnesiosilica+and+metastable+magnesioferrite+and+fayalite&rft.au=Rietmeijer%2C+Frans+J+M%3BPun%2C+A%3BNuth%2C+J+A%3BAnonymous&rft.aulast=Rietmeijer&rft.aufirst=Frans+J&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2017-01-01 N1 - PubXState - DC N1 - Last updated - 2017-02-02 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - ASTER instrument; data bases; data processing; deformation; Earth Observing System; entropy; eruptions; Fogo; fumaroles; geodesy; imagery; indicators; JPL ASTER Volcano Archive; models; prediction; seismicity; signal-to-noise ratio; statistical analysis; stochastic processes; thermal anomalies; thermal emission; time series analysis; United States; volcanoes; Yellowstone Hot Spot ER - TY - JOUR T1 - Terraced margins of inflated lava flows on Earth and Mars AN - 1844923164; 2016-099595 AB - When fluid basaltic lava flows are emplaced over a shallow regional slope (typically much less than one degree), the lava flows often display impressive characteristics of inflation. Here we describe a distinctive marginal characteristic that is often developed along the margins of endogenously inflated basaltic lava flows; discreet topographic levels of the emplaced lava that are here termed "terraced margins". Terraced margins were first noted at the distal end of the Carrizozo lava flow in central New Mexico, where they are particularly well expressed, but terraces have also been observed along some margins of the McCartys lava flow (NM), the distal end of the 1859 Mauna Loa lava flow (HI), and lava flows at Craters of the Moon (ID). Differential Global Positioning System surveys across several terraced margins reveal consistent topographic characteristics: the upper surface of each terrace level is at roughly one half the height of the sheet lobe from which it emerges; when a terrace becomes the source of an additional outbreak, the upper surface of the second terrace is at roughly one half the height of the source terrace; often a subtle topographic depression is present along the contact between a terrace and its source sheet lobe, suggesting that the terrace outflow starts at a level roughly one-third the height of the source lobe; the upper surfaces of both the source sheet lobe and associated terraces are level to within tens of centimeters across length scales of many tens to hundreds of meters, indicative of inflation of all components. The field observations will be used as the constraints for modeling of the inflation and terracing mechanisms, an effort that has only recently started. The multiple imaging data sets now available for Mars have revealed the presence of terraced margins on some lava flows on Mars. Although detailed topographic data are not currently available for the Martian examples identified so far, the presence of terraced margins for lava flows on both Earth and Mars indicates that the terracing mechanism is intimately associated with the lava flow inflation process. This work was supported by grants from the Planetary Geology and Geophysics program of NASA (NNX09AD88G) and the Scholarly Studies program of the Smithsonian Institution. JF - American Geophysical Union Fall Meeting AU - Zimbelman, J R AU - Garry, W B AU - Bleacher, J E AU - Crumpler, L S AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract V31A EP - 2510 PB - American Geophysical Union, Washington, DC VL - 2011 KW - imagery KW - Earth KW - volcanic rocks KW - lava flows KW - igneous rocks KW - Mars KW - terraces KW - emplacement KW - terrestrial planets KW - planets KW - basalts KW - surface features KW - interplanetary comparison KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844923164?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Terraced+margins+of+inflated+lava+flows+on+Earth+and+Mars&rft.au=Zimbelman%2C+J+R%3BGarry%2C+W+B%3BBleacher%2C+J+E%3BCrumpler%2C+L+S%3BAnonymous&rft.aulast=Zimbelman&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-12-01 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - basalts; Earth; emplacement; igneous rocks; imagery; interplanetary comparison; lava flows; Mars; planets; surface features; terraces; terrestrial planets; volcanic rocks ER - TY - JOUR T1 - High-resolution X-ray imaging of amygdules for measuring bubble size distribution in ancient lava flows AN - 1844921928; 2016-099576 AB - Measurement of the size and shape of structures in solid opaque substrates has been a common problem in geological sciences. Areas of investigation have included vesicle size distribution in meteorites and emplaced lava flows, gold grains in ores, aggregate clasts in asphalt concretes, and measurement of porphyroblasts in metamorphic rocks. In particular, bubble size distribution (BSD) and vesicularity in emplaced lava flows have yielded insights into the physics of eruption processes, emplacement history, and paleoaltimetery. However, these studies were restricted to lava flows recent enough such that vesicles were true voids. Vesicles in ancient lava flows are rarely voids, and are commonly filled with secondary minerals such as quartz, calcite and chlorite (identifying them as amygdules, rather than vesicles), making BSD measurements difficult. Here we present a new method of measuring BSD of amygdules in basalt using high resolution X-ray computer tomography (HRXCT). In cores examined in this study, CT images record the variation in attenuation of X-rays resulting from variations in the material density and composition. Secondary minerals thus appear in HRXCT images as shades of gray different from the uniform basalt matrix. Following image smoothing by Wiener-Kolmogorov filtering, amygdules are detected by applying an algorithm typically used to automatically detect seismic events in seismograms. In this case, the algorithm is sensitive to changes in gray-scale. Images are then binarized and imported into BLOB3D (an HRXCT-specific software) where amygdule volumes are extracted. Bubble size distribution calculations must rely on statistics relating the random distribution of the subsample to the entire population of bubbles in the flow. Without additional subsamples, the extrapolation to population statistics requires the assumption that the subsample is a representative sample of the population. This assumption permits the calculation of a large number of additional random subsamples using bootstrap statistics. The Central-Limit Theorem is then used to calculate the corresponding population mean and standard deviation. JF - American Geophysical Union Fall Meeting AU - Som, S M AU - Hagadorn, J AU - Thelen, W AU - Gillespie, A AU - Catling, D C AU - Buick, R AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract V23F EP - 2630 PB - American Geophysical Union, Washington, DC VL - 2011 KW - imagery KW - lava flows KW - bubbles KW - deformation KW - simulation KW - size KW - spatial distribution KW - X-ray data KW - mineral composition KW - lava KW - rheology KW - eruptions KW - amygdules KW - algorithms KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844921928?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+Year+of+the+Solar+System%3B+pathways+for+scientist+involvement&rft.au=Shipp%2C+S%3BShupla%2C+C%3BDalton%2C+H%3BBuxner%2C+S+R%3BBoonstra%2C+D%3BScalice%2C+D+M%3BAnonymous&rft.aulast=Shipp&rft.aufirst=S&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-12-01 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - algorithms; amygdules; bubbles; deformation; eruptions; imagery; lava; lava flows; mineral composition; rheology; simulation; size; spatial distribution; X-ray data ER - TY - JOUR T1 - Hayabusa sample curation in the JAXA's planetary material curation facility AN - 1832616036; 638264-47 AB - Hayabusa has successfully returned its reentry capsule in Australia on June 13th, 2010. As detailed previously [1], a series of processes have been held in the JAXA's Planetary Material Curation Facility to introduce the sample container of reentry capsule into the pure nitrogen filled clean chamber without influence by water or oxygen, retrieve fine particles found inside the container, characterize them with scanning electron microscope (SEM) with energy dispersive X-ray spectroscopy (EDX), classify them into mineral or rock types, and store them for future analysis. Some of those particles are delivered for initial analysis to catalogue them [2-10]. The facility is demanded to develop new methodologies or train techniques to pick up the recovered samples much finer than originally expected One of them is the electrostatic micro-probe for pickups, and .a trial started to slice the fine samples for detailed analysis of extra-fine structures. Electrostatic nano-probe to be used in SEM is also considered and developed.. To maximize the scientific outputs, the analyses must go on .based on more advanced methodology or sophisticated ideas. So far we have identified those samples as materials from S-class asteroid 25143 Itokawa due to their consistency with results by remote near-infrared and X-rsy spectroscopy: about 1500 ultra-fine particles (mostly smaller than 10 microns) caught by Teflon spatula scooping, and about 100 fine particles (mostly 20-200 microns) collected by compulsory fall onto silica glass plates. Future schedule for sample distribution must be planned. The initial analyses are still in progress, and we will distribute some more of particles recovered. Then some part of the particles will be distributed to NASA, based on the Memorandum of Understanding (MOU) between Japan and U.S.A. for the Hayabusa mission. Finally, in the near future an international Announcement of Opportunity (AO) for sample analyses will be open to any interested researchers In the presentation, functions in the JAXA's Planetary Material Curation Facility will be briefly described as well as the current achievement in methodology and future plan. Scientific outputs will be summarized for our understanding the solar system evolution. References: [1] Fujimura A. et al. 2011. #1829. 42nd LPSC. [2] Nakamura T. et al. 2011. #1766. 42nd LPSC [3] Tsuchiyama A. et al. 2011 #1766. 42nd LPSC. [4] Ebihara M. et al. 2011. #1902. 42nd LPSC. [5] Yurimoto H. et al. 2011. #1755. 42nd LPSC. [6] Noguchi T. et al. 2011. #1596. 42nd LPSC. [7] Okazaki R. et al. 2011. #1653. 42nd LPSC. [8] Nagao K. et al. 2011. #2119. 42nd LPSC. [9] Kitajima F. et al. 2011. #1855. 42nd LPSC. [10] Naraoka H. et al. 2011. #1672. 42nd LPSC. JF - American Geophysical Union Fall Meeting AU - Okada, T AU - Abe, M AU - Fujimura, A AU - Yada, T AU - Ishibashi, Y AU - Uesugi, M AU - Yuzuru, K AU - Yakame, S AU - Nakamura, T AU - Noguchi, T AU - Okazaki, R AU - Zolensky, M AU - Sandford, S AU - Ueno, M AU - Mukai, T AU - Yoshikawa, M AU - Kawaguchi, J Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P43A EP - 1654 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832616036?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Hayabusa+sample+curation+in+the+JAXA%27s+planetary+material+curation+facility&rft.au=Okada%2C+T%3BAbe%2C+M%3BFujimura%2C+A%3BYada%2C+T%3BIshibashi%2C+Y%3BUesugi%2C+M%3BYuzuru%2C+K%3BYakame%2C+S%3BNakamura%2C+T%3BNoguchi%2C+T%3BOkazaki%2C+R%3BZolensky%2C+M%3BSandford%2C+S%3BUeno%2C+M%3BMukai%2C+T%3BYoshikawa%2C+M%3BKawaguchi%2C+J&rft.aulast=Okada&rft.aufirst=T&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - How were oxidation state heterogeneities formed in the martian interior? AN - 1832616015; 638262-67 AB - The primary oxygen fugacity of basaltic melts reflects the mantle source oxidation state, dictates the crystallizing assemblage, and determines how the magma will evolve. On Earth, variabile fO (sub 2) among basaltic melts is linked to mass exchange between the surface and the interior by tectonic processes (subduction). Martian basalts represent samples of the planet's interior and we currently have two data sets with which to work: the Amazonian age shergottitic meteorites and early Hesperian age basaltic rocks examined in situ by the Spirit rover in Gusev Crater. The Gusev basalts are diverse and range from the K-poor Adirondack class (0.02 wt% K (sub 2) O) to K-rich Backstay class (up to 1.2 wt% K (sub 2) O). By combining the Fe (super 3+) /Fe (sub T) of igneous minerals (olivine, pyroxene, and magnetite) determined by Moessbauer spectrometer, we estimated primary fO (sub 2) for the Gusev basalts to be -3.6 to 0.5 Delta QFM (quartz-fayalite-magnetite buffer). General similarity between the fO (sub 2) estimated for the Gusev basalts and ranges in fO (sub 2) for the shergottitic meteorites (-3.8 to 0.2 Delta QFM; Herd, 2003; Goodrich et al., 2003) suggests that the overall range of fO2 for the Martian igneous rocks and mantle is relatively restricted. Also like the shergottites (Herd et al., 2003), estimated fO2 of three Gusev classes (Adirondack, Barnhill and Irvine) correlates with a proxy for LREE enrichment (K/Ti). This suggests mixing between melts or fluids derived from reservoirs with contrasting fO (sub 2) , such as reduced, LREE-depleted mantle and more oxidized, LREE-enriched crust. One exception to this trend is the high-K Backstay class, which has low fO (sub 2) like the low-K Adirondack class (-3.6 Delta QFM). Backstay and Adirondack are probably melts of similarly reduced mantle and contrasting alkali concentrations may reflect partial melting processes. If the high K (sub 2) O (and K/Ti) of Backstay was obtained through partial melting of primary (i.e., never melted) mantle, then its relatively low fO (sub 2) may imply that the development of the more oxidized, LREE-enriched reservoir was not caused by melting processes alone. Instead, the more oxidized, LREE-enriched reservoir may signify high degrees of fractionation, fundamental source heterogeneities formed during planetary differentiation, and/or metasomatism by oxidizing fluids. Based on the available fO (sub 2) data for the Martian interior, tectonic processes have not led to sufficient recycling of oxidized surface material into the Martian interior to entirely affect the overall oxidation state of the mantle. However, the oxygen fugacity of well-characterized samples from Mars would allow us to continue to test this hypothesis. Furthermore, by combining fO (sub 2) with other data sets, such as radiometric ages, rare earth elements and particularly Sm and Nd isotopes, we could model and discuss the development of oxidized and reduced reservoirs in an absolute timeframe. JF - American Geophysical Union Fall Meeting AU - Schmidt, M E AU - Schrader, C M AU - McCoy, T J Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P33D EP - 1782 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832616015?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=How+were+oxidation+state+heterogeneities+formed+in+the+martian+interior%3F&rft.au=Schmidt%2C+M+E%3BSchrader%2C+C+M%3BMcCoy%2C+T+J&rft.aulast=Schmidt&rft.aufirst=M&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Laboratory studies of fischer-tropsch-type reactions and their implications for organics in asteroids and comets AN - 1832616011; 638261-97 AB - We have been studying Fischer-Tropsch type (FTT) reactions as a source for organic materials both in the gas phase of the solar nebula and incorporated into primitive comets and asteroids for almost 10 years, and over this time our concept has evolved greatly from the standard "catalytic" model to a much more robust chemical scenario. Our simulations have been conducted at temperatures that are much higher than we like, primarily for practical reasons such as the timescale of individual reactions, and we are just starting a series of measurements to allow us to measure reaction rates at temperatures from 873K down to as low as 373K. We have preliminary data on the carbon (d13C = -50) & nitrogen (d15N = +9.5) isotopic fractionation at 873K, but not on materials produced at lower temperature. Isotope values are on the VPDB scale for carbon and vs. Air for nitrogen. We have also investigated the noble gas trapping efficiency of the FTT process by adding a small amount of a noble gas mix to our standard synthesis mix. The noble gas ratio is 49:49:1:1::Ne:Ar:Kr:Xe. Xe and Kr are trapped at 873K and are more efficiently trapped at 673K with no isotopic fractionation at either temperature. Ar trapping is detected at 673K, but not at 873K. Ne has not yet been observed in our samples. The solar nebula was an extremely complex system, mixing materials from the innermost regions out to well into the zones where comets formed and thus mixing highly processed nebular materials with grains and coatings formed before the nebula began to collapse. Laboratory studies may provide the means to separate such diverse components based on carbon or nitrogen isotopic fractionation or the quantities of noble gases trapped in grain coatings and their thermal release patterns, among other observables. The ultimate goal of laboratory synthesis of nebular analogs is to provide the means to identify the conditions under which natural samples were formed and the signitures of subsequent metamorphic events. JF - American Geophysical Union Fall Meeting AU - Nuth, J Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P31F EP - 07 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832616011?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Laboratory+studies+of+fischer-tropsch-type+reactions+and+their+implications+for+organics+in+asteroids+and+comets&rft.au=Nuth%2C+J&rft.aulast=Nuth&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Development and testing of proboscis heat flow probe with gas-enhanced drilling system AN - 1832615871; 638264-72 AB - Our heat-flow probe (HFP) directly addresses the goal of the Lunar Geophysical Network, which is to understand the interior structure and composition of the Moon. A key challenge for a heat flow measurement is to install the thermal sensors deep enough (depth > nearly equal 3 m) so that they are not influenced by the diurnal, annual, or long-term thermal fluctuations. In addition, once deployed, the heat flow probe should cause little disturbance to the thermal regime of the surrounding regolith. We developed a heat-flow probe system which has two novel features: 1) it utilizes a pneumatic (gas) approach to excavate a hole by lofting the lunar soil out of this opening; and 2) deploys the heat flow probe, which utilizes a coiled up tape as a thermal probe, to reach our target depth. The system is unique for small lunar landers as it exhibits extremely low mass, volume, and simple deployment. Thus far we have successfully demonstrated this approach to the maximum possible depth with our present hardware ( nearly equal 50 cm): 1.) under atmospheric condition in compacted lunar soil simulant; 2.) in Mauna Kea volcanic tephra; and 3.) in a vacuum chamber, in compacted lunar soil simulant. Our next step is to fabricate a mass optimized HFP for a 3 m depth. JF - American Geophysical Union Fall Meeting AU - Shasho, J AU - Zacny, K AU - Paulsen, G AU - Avanesyan, A AU - Mellerowicz, B AU - Makai, T AU - Szwarc, T AU - Nagihara, S AU - Taylor, P T AU - Milam, M Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P43B EP - 1680 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615871?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Development+and+testing+of+proboscis+heat+flow+probe+with+gas-enhanced+drilling+system&rft.au=Shasho%2C+J%3BZacny%2C+K%3BPaulsen%2C+G%3BAvanesyan%2C+A%3BMellerowicz%2C+B%3BMakai%2C+T%3BSzwarc%2C+T%3BNagihara%2C+S%3BTaylor%2C+P+T%3BMilam%2C+M&rft.aulast=Shasho&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Further constraints and uncertainties on the deep seismic structure of the Moon AN - 1832615867; 638262-36 AB - The Apollo Passive Seismic Experiment (APSE) consisted of four 3-component seismometers deployed between 1969 and 1972, that continuously recorded lunar ground motion until late 1977. The APSE data provide a unique opportunity for investigating the interior of a planet other than Earth, generating the most direct constraints on the elastic structure, and hence the thermal and compositional evolution of the Moon. Owing to the lack of far side moonquakes, past seismic models of the lunar interior were unable to constrain the lowermost 500 km of the interior. Recently, array methodologies aimed at detecting deep lunar seismic reflections found evidence for a lunar core, providing an elastic model of the deepest lunar interior consistent with geodetic parameters (Weber et al., 2011 and Garcia et al., 2011). Here we study the uncertainties in these models associated with the double array stacking of deep moonquakes for imaging deep reflectors in the Moon. We investigate the dependency of the array stacking results on a suite of parameters, including amplitude normalization assumptions, polarization filters, assumed velocity structure, and seismic phases that interfere with our desired target phases. These efforts are facilitated by the generation of synthetic seismograms at high frequencies ( nearly equal 1Hz), allowing us to directly study the trade-offs between different parameters. We also investigate expected amplitudes of deep reflections relative to direct P and S arrivals, including predictions from arbitrarily oriented focal mechanisms in our synthetics. Results from separate versus combined station stacking help to establish the robustness of stacks. Synthetics for every path geometry of data were processed identically to that done with data. Different experiments were aimed at examining various processing assumptions, such as adding random noise to synthetics and mixing 3 components to some degree. The principal stacked energy peaks put forth in recent work (e.g., Weber et al., 2011) persist, but their amplitude (which maps into reflector impedance contrast) and timing (which maps into reflector depth) depend on factors that are not well constrained - most notably, the velocity structure of the overlying lunar interior. Thus, while evidence for the lunar core remains strong, the depths of imaged reflectors have associated uncertainties that will require new seismic data and observations to constrain. These results strongly advocate further investigations on the Moon to better resolve the interior (e.g., Selene missions), for the Moon apparently has a rich history of construction and evolution that is inextricably tied to that of Earth. References: 1.Garcia, R.F., Gagnepain-Beyneix, J., Chevrot, S. & Lognonne, P. Very preliminary reference Moon model. Physics of the Earth and Planetary Interiors (2011).doi:10.1016/j.pepi.2011.06.015 2.Weber, R.C., Lin, P.-Y., Garnero, E.J., Williams, Q. & Lognonne, P. Seismic detection of the lunar core. Science (New York, N.Y.) 331, 309-12 (2011). JF - American Geophysical Union Fall Meeting AU - Lin, P P AU - Weber, R C AU - Garnero, E J AU - Schmerr, N C Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P33A EP - 1751 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615867?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Further+constraints+and+uncertainties+on+the+deep+seismic+structure+of+the+Moon&rft.au=Lin%2C+P+P%3BWeber%2C+R+C%3BGarnero%2C+E+J%3BSchmerr%2C+N+C&rft.aulast=Lin&rft.aufirst=P&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Testing of the prototype Mars drill and sample acquisition system in the Mars analog site of the antarctica's dry valleys AN - 1832615765; 638264-20 AB - We report on the testing of the one meter class prototype Mars drill and cuttings sampling system, called the IceBreaker in the Dry Valleys of Antarctica. The drill consists of a rotary-percussive drill head, a sampling auger with a bit at the end having an integrated temperature sensor, a Z-stage for advancing the auger into the ground, and a sampling station for moving the augered ice shavings or soil cuttings into a sample cup. In November/December of 2010, the IceBreaker drill was tested in the Uni-versity Valley (within the Beacon Valley region of the Antarctic Dry Valleys). University Valley is a good analog to the Northern Polar Regions of Mars because a layer of dry soil lies on top of either ice-cemeted ground or massive ice (depending on the location within the valley). That is exactly what the 2007 Phoenix mission discovered on Mars. The drill demonstrated drilling in ice-cemented ground and in massive ice at the 1-1-100-100 level; that is the drill reached 1 meter in 1 hour with 100 Watts of power and 100 Newton Weight on Bit. This corresponds to an average energy of 100 Whr. At the same time, the bit temperature measured by the bit thermocouple did not exceed more than 10 degrees C above the formation temperature. The temperature also never exceeded freezing, which minimizes chances of getting stuck and also of altering the materials that are being sampled and analyzed. The samples in the forms of cuttings were acquired every 10 cm intervals into sterile bags. These tests have shown that drilling on Mars, in ice cemented ground with limited power, energy and Weight on Bit, and collecting samples in discrete depth intervals is possible within the given mass, power, and energy levels of a Phoenix-size lander and within the duration of a Phoenix-like mission. JF - American Geophysical Union Fall Meeting AU - Zacny, K AU - Paulsen, G AU - McKay, C AU - Glass, B J AU - Marinova, M AU - Davila, A F AU - Pollard, W H AU - Jackson, A Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P42B EP - 02 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615765?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Testing+of+the+prototype+Mars+drill+and+sample+acquisition+system+in+the+Mars+analog+site+of+the+antarctica%27s+dry+valleys&rft.au=Zacny%2C+K%3BPaulsen%2C+G%3BMcKay%2C+C%3BGlass%2C+B+J%3BMarinova%2C+M%3BDavila%2C+A+F%3BPollard%2C+W+H%3BJackson%2C+A&rft.aulast=Zacny&rft.aufirst=K&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Clear evidence for hydrothermal deposits within gusev crater established by the Mars exploration rover spirit AN - 1832615736; 638261-100 AB - The Spirit rover ended its science mission on the martian surface after operating for 2210 sols and covering over 7.7 km across geologically diverse terrain. A multitude of discoveries have been made along the traverse, including compelling evidence for past hydrothermal activity at the surface of Mars. Several light-toned deposits excavated by the rover wheels were analyzed in detail by the Moessbauer and Alpha Particle X-ray Spectrometers (APXS), which determined that they are dominated by ferric sulfates in association with magnesium sulfates, silica and occasionally calcium sulfates and phosphates. Based on modeling of scatter peaks within the APXS data, these samples are hydrated and contain up to 18 wt% water. They also exhibit the chemical signatures of nearby rocks (e.g. corresponding phosphate enrichments) and have a Fe:Mn ratio far from the value measured for the majority of samples analyzed by the rovers, clearly indicative of aqueous interactions. Variability in the deposits over centimeter to meter scales indicates that these precipitates did not develop under large-scale equilibrium conditions. Based upon the observations of up to 35 wt% SO3 and the abundance of measured cations in expected oxidation states, the occurrence of elemental sulfur, sulfuric acid, or sulfides cannot be ruled out. The likely mechanisms for the formation of these deposits involve sulfur-rich hydrothermal fluids and volcanic vapors reaching the surface and producing fumarolic condensates. In close association with the samples containing abundant hydrated ferric sulfates are other samples which are dominated by silica. In one example, the elemental chemistry data shows over 90 wt% SiO2. Elevated titanium concentrations in these silica-rich samples are suggestive of interactions with acidic fluids or vapors resulting in preferential retention of the least mobile elements. This is consistent with the acid sulfate processes indicated by the occurrence of the ferric sulfates. Volcanic emissions are commonly enriched in zinc, and the highest concentrations of this element measured by Spirit (0.1 to 0.2 wt%) are in close proximity to the silica and ferric sulfate-rich samples. Nickel, another volcanic volatile, is also enriched in the high-Zn samples. Furthermore, the measured Zn:Cl ratio in this series of analyses is indicative of a high-temperature process. Taken collectively, these observations clearly indicate the discovery of a hydrothermal region at the martian surface. While many of these deposits are concentrated near "Home Plate" (a nearly equal 90 meter diameter, light-toned feature visible from orbit), other known occurrences are over 1 km away at elevations varying by several tens of meters. These deposits are likely far more widespread than the specific locations uncovered by the Spirit rover, and they are not constrained by the geologic setting to be ancient. They could, in fact, be remnants of relatively recent hydrothermal activity. JF - American Geophysical Union Fall Meeting AU - Yen, A S AU - Gellert, R AU - Morris, R V AU - Clark, B C Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P31G EP - 01 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615736?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Clear+evidence+for+hydrothermal+deposits+within+gusev+crater+established+by+the+Mars+exploration+rover+spirit&rft.au=Yen%2C+A+S%3BGellert%2C+R%3BMorris%2C+R+V%3BClark%2C+B+C&rft.aulast=Yen&rft.aufirst=A&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Concept study for a Venus lander mission to analyze atmospheric and surface composition AN - 1832615650; 638264-25 AB - We present a concept-level study of a New Frontiers class, Venus lander mission that was developed during Session 1 of NASA's 2011 Planetary Science Summer School, hosted by Team X at JPL. Venus is often termed Earth's sister planet, yet they have evolved in strikingly different ways. Venus' surface and atmosphere dynamics, and their complex interaction are poorly constrained. A lander mission to Venus would enable us to address a multitude of outstanding questions regarding the geological evolution of the Venusian atmosphere and crust. Our proposed mission concept, VenUs Lander for Composition ANalysis (VULCAN), is a two-component mission, consisting of a lander and a carrier spacecraft functioning as relay to transmit data to Earth. The total mission duration is 150 days, with primary science obtained during a 1-hour descent through the atmosphere and a 2-hour residence on the Venusian surface. In the atmosphere, the lander will provide new data on atmospheric evolution by measuring dominant and trace gas abundances, light stable isotopes, and noble gas isotopes with a neutral mass spectrometer. It will make important meteorological observations of mid-lower atmospheric dynamics with pressure and temperature sensors and obtain unprecedented, detailed imagery of surface geomorphology and properties with a descent Near-IR/VIS camera. A nepholometer will provide new constraints on the sizes of suspended particulate matter within the lower atmosphere. On the surface, the lander will quantitatively investigate the chemical and mineralogical evolution of the Venusian crust with a LIBS-Raman spectrometer. Planetary differentiation processes recorded in heavy elements will be evaluated using a gamma-ray spectrometer. The lander will also provide the first stereo images for evaluating the geomorphologic/volcanic evolution of the Venusian surface, as well as panoramic views of the sample site using multiple filters, and detailed images of unconsolidated material and rock textures from a microscopic imager. Our mission proposal will enable the construction of a unique Venus test facility that will attract a new generation of scientists to Venus science. With emphasis on flight heritage, we demonstrate our cost basis and risk mitigation strategies to ensure that the VULCAN mission can be conducted within the requirements and constraints of the New Frontiers Program. JF - American Geophysical Union Fall Meeting AU - Kumar, K AU - Banks, M E AU - Benecchi, S D AU - Bradley, B K AU - Budney, C J AU - Clark, G B AU - Corbin, B A AU - James, P B AU - O'Brien, R C AU - Rivera-Valentin, E G AU - Saltman, A AU - Schmerr, N C AU - Seubert, C R AU - Siles, J V AU - Stickle, A M AU - Stockton, A M AU - Taylor, C AU - Zanetti, M Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P42B EP - 07 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615650?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Concept+study+for+a+Venus+lander+mission+to+analyze+atmospheric+and+surface+composition&rft.au=Kumar%2C+K%3BBanks%2C+M+E%3BBenecchi%2C+S+D%3BBradley%2C+B+K%3BBudney%2C+C+J%3BClark%2C+G+B%3BCorbin%2C+B+A%3BJames%2C+P+B%3BO%27Brien%2C+R+C%3BRivera-Valentin%2C+E+G%3BSaltman%2C+A%3BSchmerr%2C+N+C%3BSeubert%2C+C+R%3BSiles%2C+J+V%3BStickle%2C+A+M%3BStockton%2C+A+M%3BTaylor%2C+C%3BZanetti%2C+M&rft.aulast=Kumar&rft.aufirst=K&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - The CheMin mineralogy instrument on Mars science laboratory: analysis of clays and sulfates at gale crater AN - 1832615648; 638262-60 AB - A principal goal of the Mars Science Laboratory (MSL) Curiosity rover is to identify and characterize present or past habitable environments on Mars. Mineralogy is important in this regard because minerals are thermodynamic phases, stable under specific (and known) conditions of temperature, pressure and composition. By determining the mineralogical composition of a rock or soil, one can often deduce the conditions under which it formed or its subsequent diagenetic or metamorphic history. The CheMin instrument on MSL will return accurate mineral determinations and quantitative mineralogical information from scooped soil samples and drilled rock powders collected at Gale crater during Curiosity's 1-Mars-year nominal mission. Individual analyses will require several hours over one or more Mars sols. For typical well-ordered minerals, CheMin will have a Minimum Detection Limit (MDL) of 4X MDL (12%). The resolution of the diffraction patterns is 0.3 degrees 2theta . This performance is sufficient to allow for the detection and quantification of virtually all minerals. Orbital imagery and analysis of reflectance spectra from Gale Crater reveal a wealth of mineralogical and morphological features suggestive of ancient habitable environments and water. CheMin is quite capable of discriminating and quantifying the clay and sulfate mineralogies expected within the landing ellipse and in the strata of the central mound, the primary target at Gale. Both polyhydrated and monohydrated (kieserite) sulfate minerals are distributed in mappable strata at Gale. Virtually all hydrated and nonhydrated sulfates are uniquely identifiable and quantifiable with CheMin. Breadboard and commercial equivalents of the CheMin instrument have already been used extensively in evaporite field localities ranging from Death Valley to Antarctica and Spitsbergen; at all these sites the identification and characterization of sulfate, carbonate, and halide mineralogy has been comparable to that of laboratory diffraction instruments. CheMin is also able to identify and distinguish a number of clay minerals. Discrimination between 1:1 phyllosilicates (such as the kaolin minerals, with repeat distances of nearly equal 7Aa) and smectites (e.g., montmorillonite, nontronite, saponite) with repeat distances from 10-15Aa, is straightforward. However, it is important to note that the variety of treatments used in terrestrial laboratories to aid in discrimination of clay minerals will not be accessible on Mars. In sedimentary sequences such as are evident in the central mound of Gale, it will be particularly valuable to develop a "chemostratigraphy" (a stratigraphy of chemical and mineralogical changes) that will illustrate changes in environmental conditions over geologically significant time periods. With CheMin and the other analytical instruments aboard Curiosity, we will be able to go beyond questions of identification (the "whats"), and into questions of interpretation (the "whys"). No matter what Curiosity finds at Gale, we can say one thing with certainty: We will be surprised and informed by its journey. JF - American Geophysical Union Fall Meeting AU - Blake, D F Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P33C EP - 1775 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615648?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+CheMin+mineralogy+instrument+on+Mars+science+laboratory%3A+analysis+of+clays+and+sulfates+at+gale+crater&rft.au=Blake%2C+D+F&rft.aulast=Blake&rft.aufirst=D&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - The Columbia hills max-c landing site: a sample return treasure trove AN - 1832615583; 638262-74 AB - The proposed 2018 Mars Astrobiology Explorer-Cacher (MAX-C) is the next logical step for addressing the goals of astrobiology and geology. The primary science objectives of the MAX-C mission are to investigate a site that contains both high habitability potential and high preservation potential for physical and chemical biosignatures. The MAX-C rover will collect, document, and package the samples necessary to achieve the scientific objectives of the proposed future Mars Sample Return Mission (MSR). The success of any Mars sample return mission will be intimately tied to the selection of the landing site, which is an arduous and meticulous process that takes years (MSL took five years). Consequently, the purpose of this presentation is to propose that the MAX-C rover go to the geologically diverse and complex region of the Columbia Hills (Noachian age) first explored by the Spirit rover. The MAX-C rover can also collect samples of the Hesperian volcanic olivine-rich basaltic plains. While not the primary science sampling objectives these samples would however be important for sampling and dating a Hesperian age lava flow which can then be used to help calibrate Martian crater curves. Spirit's mission doubles as a trailblazer for MAX-C by providing the ultimate in ground truth. Spirit has already located numerous geologically significant outcrops (carbonates, opaline silica, sulfates) and sampling sites that MAX-C could take advantage of by acquiring samples for the eventual return to Earth. Spirit has already discovered the highest priority sampling objectives for a MAX-C mission. Namely, the opaline silica deposits near Home Plate and Mg-Fe carbonate outcrops of Haskin Ridge located in the Inner Basin region of the Columbia Hills. The opaline silica deposits (up to 91 weight percent SiO2) are interpreted to have formed in a hydrothermal environment because they are found in close association with volcanic materials such as Home Plate. Two types of environments could have been responsible for forming these materials: fumaroles or hydrothermal sinter deposits produced by hot springs [Squyres, et al., 2008]. This discovery is of paramount importance for understanding the past habitability of Mars because terrestrial hydrothermal environments support thriving microbial ecosystems. The recent discovery of carbonates (16 to 34 wt %) in the Comanche outcrops of Haskin Ridge implies extensive aqueous activity under near-neutral pH conditions that would be conducive to habitable environments on early Mars [Morris, et al., 2010]. Additionally, silica and carbonate precipitation are well known to promote biosignature preservation. MAX-C will also be able to investigate features that Spirit wasn't able to explore. For example, von Braun Butte, the Promised Land, and Goddard Crater which may be a volcanic source vent [Rice, et al., 2010]. References: Morris, R.V. et al., 2010, Identification of Carbonate-Rich Outcrops on Mars by the Spirit Rover, Science 329, 421-24. Rice, J.W. et al., 2010, Geomorphology of the Columbia Hills Complex: Landslides, Volcanic Vent, and Other Home Plates, LPSC 41, abstract 2566. Squyres, S.W. et al., 2008, Detection of Silica-Rich Deposits on Mars, Science, 320, no. 5879, 1063-1067. JF - American Geophysical Union Fall Meeting AU - Rice, J W Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P33D EP - 1789 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615583?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+Columbia+hills+max-c+landing+site%3A+a+sample+return+treasure+trove&rft.au=Rice%2C+J+W&rft.aulast=Rice&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Downhole elemental analysis with LIBS AN - 1832615577; 638264-60 AB - In this paper we discuss a novel instrument, currently under development at Honeybee Robotics with SBIR funding from NASA. The device is designed to characterize elemental composition as a function of depth in non-terrestrial geological formations. The instrument consists of a miniaturized LIBS analyzer integrated in a 2" diameter drill string. While the drill provides subsurface access, the LIBS analyzer provides information on the elemental composition of the borehole wall. This instrument has a variety of space applications ranging from exploration of the Moon for which it was originally designed, to Mars, as well as a variety of terrestrial applications. Subsurface analysis is usually performed by sample acquisition through a drill or excavator, followed by sample preparation and subsequent sample presentation to an instrument or suite of instruments. An alternative approach consisting in bringing a miniaturized version of the instrument to the sample has many advantages over the traditional methodology, as it allows faster response, reduced probability of cross-contamination and a simplification in the sampling mechanisms. LIBS functions by focusing a high energy laser on a material inducing a plasma consisting of a small fraction of the material under analysis. Optical emission from the plasma, analyzed by a spectrometer, can be used to determine elemental composition. A triangulation sensor located in the sensor head determines the distance of the sensor from the borehole wall. An actuator modifies the position of the sensor accordingly, in order to compensate for changes due to the profile of the borehole walls. This is necessary because LIBS measurements are negatively affected by changes in the relative position of the focus of the laser with respect to the position of the sample (commonly referred to as the "lens to sample distance"). Profiling the borehole is done by adjusting the position of the sensor with a vertical stage; a second actuator at the top of the downhole probe allows radial scanning of the borehole. Analysis of iron and titanium in lunar simulant with LIBS was performed in air using the method of standard addition. The results for lunar simulant NU-LHT-2M show a value for the concentration of iron ranging between 2.29% and 3.05% depending on the atomic line selected. The accepted value for the sample analyzed is 2.83%, showing the capability for the system in development to provide qualitative and semi-quantitative analysis in real-time. JF - American Geophysical Union Fall Meeting AU - Moreschini, P AU - Zacny, K AU - Rickman, D Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P43B EP - 1667 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615577?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Downhole+elemental+analysis+with+LIBS&rft.au=Moreschini%2C+P%3BZacny%2C+K%3BRickman%2C+D&rft.aulast=Moreschini&rft.aufirst=P&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Laboratory tests of a handheld X-ray fluorescence spectrometer: A tool for planetary exploration AN - 1832615537; 638264-65 AB - Maximizing the science return from a mission to another planetary surface involves the integration of science objectives with deployable technologies that enable the collection of data and samples. For long duration manned missions, it is likely that more samples will be collected than can be returned to Earth due to mass limits. A niche exists for technologies that help prioritize samples for return, provide data for future sample handling and curation, and characterization for samples that are not returned to Earth. To fill this niche, hardware and protocols for field instruments are currently being developed and evaluated at NASA Johnson Space Center and Arizona State University. Our goal is to develop an easily used, environmentally isolated facility as part of the astronaut surface habitat for preliminary sample characterization and down-selection. NASA has constructed a prototype, GeoLab, as a testbed for evaluating the scientific applicability and operational considerations of various analytical instruments. One instrument under evaluation is a small, portable x-ray fluorescence (XRF) spectrometer that can be also be used by astronaut explorers as part of their field gear while on scientific sorties, or on robotic field assistants. We report on preliminary usability tests for commercially available handheld XRF instruments. These instruments collect data by contacting the surface of a rock or sediment sample with an 8 mm-wide sensor window. Within 60 seconds, the devices can provide relatively precise data on the abundance of major and trace elements heavier than Na. Lab-based handheld XRF analyses of terrestrial and lunar samples, compared with those made with full-scale laboratory XRF systems, show good correlation, but we continue to investigate potential sources of error and the need for careful calibration with standards of known composition. Specifically, we use a suite of five terrestrial and five lunar basalts, all well characterized by conventional XRF technology, to evaluate the handheld technology. All of these samples are fine-grained and homogeneous, and were selected to eliminate effects introduced to the data by inconsistencies in the sample matrix, or added complexities like increased vesicularity or phenocryst content. Our calibration curves are built from smooth, sawed surfaces. We have examined all major elements, minus Na (which falls below the instrument sensitivity). Initial tests show that reproducible and reliable calibration curves are produced for Ca, Fe, Al, Ti, and Si, but the curves produced for Mg, Mn, K and P include greater uncertainties. We are currently investigating how the instrument signal variably drops off as a function of surface roughness and distance to the instrument window. Through studies such as these in the simulated GeoLab setting, we can better understand the instrument's capabilities in a field environment, both on Earth and for potential future missions to other planetary surfaces. JF - American Geophysical Union Fall Meeting AU - Young, K E AU - Evans, C A AU - Hodges, K Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P43B EP - 1672 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615537?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Laboratory+tests+of+a+handheld+X-ray+fluorescence+spectrometer%3A+A+tool+for+planetary+exploration&rft.au=Young%2C+K+E%3BEvans%2C+C+A%3BHodges%2C+K&rft.aulast=Young&rft.aufirst=K&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Coordinated analyses of diverse components in whole stardust cometary tracks AN - 1832615529; 638264-38 AB - Analyses of samples returned from Comet 81P/Wild-2 by the Stardust spacecraft have resulted in a number of surprising findings that show the origins of comets are more complex than previously suspected. However, these samples pose new experimental challenges because they are diverse and suffered fragmentation, thermal alteration, and fine scale mixing with aerogel. Questions remain about the nature of Wild-2 materials, such as the abundances of organic matter, crystalline materials, and presolar grains. To overcome these challenges, we have developed new sample preparation and analytical techniques tailored for entire aerogel tracks [Nakamura-Messenger et al. 2011]. We have successfully ultramicrotomed entire "carrot" and "bulbous" type tracks along their axis while preserving their original shapes. This innovation allowed us to examine the distribution of fragments along the track from the entrance hole all the way to the terminal particle (TP). We will present results of our coordinated analysis of the "carrot" type aerogel tracks #112 and #148, and the "bulbous" type aerogel tracks #113, #147 and #168 from the nanometer to the millimeter scale. Scanning TEM (STEM) was used for elemental and detailed mineralogy characterization, NanoSIMS was used for isotopic analyses, and ultrafast two-step laser mass spectrometry (ultra L2MS) was used to investigate the nature and distribution of organic phases. The isotopic measurements were performed following detailed TEM characterization for coordinated mineralogy. This approach also enabled spatially resolving the target sample from fine-scale mixtures of compressed aerogel and melt. Eight of the TPs of track #113 are dominated by coarse-grained enstatite (En90) that is largely orthoenstatite with minor, isolated clinoenstatite lamellae. One TP contains minor forsterite (Fo88) and small inclusions of diopside with % levels of Al, Cr and Fe. Two of the TPs contain angular regions of fine-grained nepheline surrounded by enstatite. Their O isotopic compositions are in the range of meteoritic materials, implying that they originated in the inner Solar System. Complex aromatic hydrocarbons are distributed along aerogel tracks and in TPs. These organics are likely cometary but were affected by shock heating. Three TPs of track #147 and two of track 168 have completely different mineralogy. TP2 of track #147 entirely consists of Fe-Ni alloy (5 at% Ni) and TP3 contains Fa28 with partial olivine-pyroxene intergrowth and minor albite. TP4 contains pentlandite, Fe-olivine, albite and high Ca pyroxene with Na and Cr (kosmochlor component). TP1 of #168 contains Fe-olivine, albite and pentlandite, and the concentric TP2 has a core of olivine grains with co-existing indigenous amorphous SiO2 surrounded by a carbon mantle, which in turn is surrounded by a layer of compressed aerogel. The TP of the carrot track #112 is a 16O-rich forsteritic olivine grain that likely formed in the inner Solar System. The track also contains submicron-sized diamond grains of likely Solar System origin. JF - American Geophysical Union Fall Meeting AU - Nakamura-Messenger, K AU - Keller, L P AU - Messenger, S R AU - Clemett, S J AU - Nguyen, L N AU - Frank, D Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P43A EP - 1645 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615529?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Coordinated+analyses+of+diverse+components+in+whole+stardust+cometary+tracks&rft.au=Nakamura-Messenger%2C+K%3BKeller%2C+L+P%3BMessenger%2C+S+R%3BClemett%2C+S+J%3BNguyen%2C+L+N%3BFrank%2C+D&rft.aulast=Nakamura-Messenger&rft.aufirst=K&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Reflectance spectra and optical constants of kieserite and sulfate mixtures for Mars AN - 1832615526; 638262-47 AB - In this work, we present visible and near-infrared (VNIR, lambda =0.35 - 5 mu m) laboratory reflectance spectra obtained at Mars-relevant temperatures and corresponding optical constants (real and imaginary refractive indices) for hydrated sulfates that have been observed on Mars, e.g., via Mars Reconnaissance Orbiter CRISM and Mars Express OMEGA spectrometers. In the laboratory, we have successfully synthesized 5 hydration states of Mg-sulfates posited to exist on Mars: kieserite, sanderite, starkeyite, hexahydrite, and epsomite. Epsomite and hexahydrite salts are expected to form on Mars when MgSO (sub 4) /(SO (sub 4) +Cl)-rich solutions are concentrated. Amorphous derivatives of epsomite and hexahydrite or lower-order Mg-sulfate hydrates (starkeyite, sanderite, kieserite) are believed to be stable on Mars. Kieserite in particular has been positively identified on Mars in several locations (e.g., Meridiani Planum, Eastern Candor & Capri Chasma, Iani and Aram Chaos) with several mission datasets. Therefore, we present VNIR reflectance spectra and optical constants on kieserite in both its low and high humidity polymorphs, and similar data on mixtures of our hydrated sulfates with each other and with different Mars simulants: JSC Mars-1 (glassy, altered volcanic ash that is a good spectral analog for Mars dust and Mars bright regions) and Mars Mojave Simulant (a crystalline material analogous to Mars rocks). These data will help to fully distinguish between and constrain the abundance and distribution of hydrated sulfates on the martian surface, which will lead to improvements in understanding the pressure, temperature, and humidity conditions and how active frost, groundwater, and atmospheric processes once were on Mars. This work is supported by NASA's Mars Fundamental Research Program (NNX10AP78G: PI Pitman) and partly performed at the Jet Propulsion Laboratory, California Institute of Technology, under contract to the National Aeronautics and Space Administration. CSJ acknowledges support from the NASA Postdoctoral Program, administered by Oak Ridge Associated Universities. JF - American Geophysical Union Fall Meeting AU - Pitman, K M AU - Noe Dobrea, E Z AU - Dalton, J B AU - Jamieson, C S AU - Abbey, W J Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P33B EP - 1762 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615526?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Reflectance+spectra+and+optical+constants+of+kieserite+and+sulfate+mixtures+for+Mars&rft.au=Pitman%2C+K+M%3BNoe+Dobrea%2C+E+Z%3BDalton%2C+J+B%3BJamieson%2C+C+S%3BAbbey%2C+W+J&rft.aulast=Pitman&rft.aufirst=K&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Compound-specific identification and quantitation of organics in meteorite material as a proxy for OSIRIS-REx samples AN - 1832615495; 638262-39 AB - Compound-specific measurements of organics in asteroids, meteorites, and comets are most easily obtained with ground-based instruments. Meteorites recovered from on Earth have afforded the ability to develop and optimize extraction and analysis techniques for amino acids, nucleobases, carboxylic acids etc. Although many of the instruments required for these analyses are not amenable for flight on missions, they will be of tremendous utility for returned samples, such as from OSIRIS-REx. The analysis of meteorites as a proxy for returned material will be discussed. JF - American Geophysical Union Fall Meeting AU - Burton, A S AU - Callahan, M P AU - Martin, M G AU - Glavin, D P AU - Dworkin, J P Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P33A EP - 1754 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615495?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=MESSENGER+at+Mercury%3B+flyby+accomplishments+and+orbital+observing+plans&rft.au=Solomon%2C+Sean+C%3BMcNutt%2C+Ralph+L%2C+Jr%3BBedini%2C+Peter+D%3BAnderson%2C+Brian+J%3BBlewett%2C+David+T%3BEvans%2C+Larry+G%3BGold%2C+Robert+E%3BKrimigis%2C+Stamatios+M%3BMurchie%2C+Scott+L%3BNittler%2C+Larry+R%3BPhillips%2C+Roger+J%3BProckter%2C+Louise+M%3BSlavin%2C+James+A%3BZuber%2C+Maria+T%3BAnonymous&rft.aulast=Solomon&rft.aufirst=Sean&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Modeling cooling rates of martian flood basalt columns AN - 1832615483; 638262-54 AB - Columnar jointing in large basalt flows have been extensively studied and can provide important clues about the emplacement conditions and cooling history of a basalt flow. The recent discovery of basalt columns on Mars in crater walls near Marte Vallis provides an opportunity to infer conditions on early Mars when the Martian basalt flows were laid down. Comparison of the Martian columns to Earth analogs allows us to gain further insight into the early Martian climate, and among the best terrestrial analogs are the basalt columns in the Columbia River Basalt Group (CRBG) in eastern Washington. The CRBG is one of the youngest (< 17 Myrs old) and most extensively studied basalt provinces in the world, extending over 163,700 square km with total thickness exceeding 1 km in some places. The morphologies and textures of CRBG basalt columns suggest that in many places flows nearly equal 100 m thick cooled at uniform rates, even deep in the flow interior. Such cooling seems to require the presence of water in the column joints since the flow interiors should have cooled much more slowly than the flow margins if conductive cooling dominated. Secondary features, such pillow basalts, likewise suggest the basalt flows were in direct contact with standing water in many places. At the resolution provided by the orbiting HiRISE camera (0.9 m), the Martian basalt columns resemble the CRBG columns in many respects, and so, subject to important caveats, inferences linking the morphologies of the CRBG columns to their thermal histories can be extended in some respects to the Martian columns. In this presentation, we will describe our analysis of the HiRISE images of the Martian columns and what can be reasonably inferred about their thermal histories and the conditions under which they were emplaced. We will also report on a field expedition to the CRBG in eastern Washington State. During that expedition, we surveyed basalt column outcrops on the ground and from the air using Unmanned Aerial Vehicles to compare ground-truth measurements of the columns to aerial measurements and study the limitations and biases inherent in remote-sensing data of such geological features. D.K.W. acknowledges the South Carolina Space Grant Consortium for travel funding. JF - American Geophysical Union Fall Meeting AU - Weiss, D K AU - Jackson, B AU - Milazzo, M P AU - Barnes, J W Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P33B EP - 1769 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615483?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Modeling+cooling+rates+of+martian+flood+basalt+columns&rft.au=Weiss%2C+D+K%3BJackson%2C+B%3BMilazzo%2C+M+P%3BBarnes%2C+J+W&rft.aulast=Weiss&rft.aufirst=D&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Towards simulating a realistic planetary seismic wavefield: the contribution of the megaregolith and low-velocity waveguides AN - 1832615455; 638262-33 AB - Lunar seismograms are distinctly different from their terrestrial counterparts. The Apollo lunar seismometers recorded moonquakes without distinct P- or S-wave arrivals; instead waves arrive as a diffuse coda that decays over several hours making the identification of body waves difficult. The unusual character of the lunar seismic wavefield is generally tied to properties of the megaregolith: it consists of highly fractured and broken crustal rock, the result of extensive bombardment of the Moon. The megaregolith extends several kilometers into the lunar crust, possibly into the mantle in some regions, and is covered by a thin coating of fine-scale dust. These materials possess very low seismic velocities that strongly scatter the seismic wavefield at high frequencies. Directly modeling the effects of the megaregolith to simulate an accurate lunar seismic wavefield is a challenging computational problem, owing to the inherent 3-D nature of the problem and the high frequencies (>1 Hz) required. Here we focus on modeling the long duration coda, studying the effects of the low velocities found in the megaregolith. We produce synthetic seismograms using 1-D slowness integration methodologies, GEMINI and reflectivity, and a 3-D Cartesian finite difference code, Wave Propagation Program, to study the effect of thin layers of low velocity on the surface of a planet. These codes allow us generate seismograms with dominant frequencies of nearly equal 1 Hz. For background lunar seismic structure we explore several models, including the recent model of Weber et al., Science, 2011. We also investigate variations in megaregolithic thickness, velocity, attenuation, and seismogram frequency content. Our results are compared to the Apollo seismic dataset, using both a cross correlation technique and integrated envelope approach to investigate coda decay. We find our new high frequency results strongly support the hypothesis that the long duration of the lunar seismic codas is generated by the presence of the low velocity megaregolith, and that the diffuse arrivals are a combination of scattered energy and multiple reverberations within this layer. The 3-D modeling indicates the extreme surface topography of the Moon adds only a small contribution to scattering effects, though local geology may play a larger role. We also study the effects of the megaregolith on core reflected and converted phases and other body waves. Our analysis indicates detection of core interacting arrivals with a polarization filter technique is robust and lends the possibility of detecting other body waves from the Moon. These predictive techniques are powerful tools for understanding the character of a planetary seismic wavefield. Modeling the effects of subsurface oceans, impact modified surfaces, and other highly fractured materials will provide advance details, such as frequency content and sensitivity, shadow zones, and other useful constraints for designing science goals for instrumentation deployed in new missions. JF - American Geophysical Union Fall Meeting AU - Schmerr, N C AU - Weber, R C AU - Lin, P P AU - Thorne, M S AU - Garnero, E J Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P33A EP - 1748 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615455?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Towards+simulating+a+realistic+planetary+seismic+wavefield%3A+the+contribution+of+the+megaregolith+and+low-velocity+waveguides&rft.au=Schmerr%2C+N+C%3BWeber%2C+R+C%3BLin%2C+P+P%3BThorne%2C+M+S%3BGarnero%2C+E+J&rft.aulast=Schmerr&rft.aufirst=N&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Using the Bidirectional Reflectance Distribution Function (BRDF) for remotely mapping surface roughness on alluvial fans: A comparison of Death Valley, CA to Mojave Crater on Mars AN - 1832615443; 638264-28 AB - The Bidirectional Reflectance Distribution Function (BRDF) describes how incoming light from a given direction is reflected from specific surfaces in response to different incoming solar radiation angles. The amount and directionality of reflected light is a function of surface roughness and orientation. The goal of this study is to assess whether a BRDF based approach may be applicable for creating surface roughness maps for Martian alluvial fans. Landsat 7 satellite imagery is used to make classifications of surfaces with different roughness and spectral properties for alluvial fan surfaces in Death Valley, California. The resulting classes have been interpreted to represent surfaces of different ages and also different deposit types. In Death Valley, older surfaces are classified based on the amount of shadowing due to gully formation, differences in the amount of surface smoothness from desert pavement formation, and desert varnish color variations. In contrast, the most recently formed surfaces have an assemblage of classes that represent surface deposits of different grain size and sorting, as well as different landform types - incised channels and elevated bars. Many Death Valley fans have a telescoping morphology where progressively younger surfaces reach basin-ward. This is more evident on some fans using a BRDF classification. A similar map was made for depositional landforms within Mojave Crater on Mars, identified as sub-kilometer alluvial fans by Williams and Malin (2008). These alluvial fans are the youngest found on Mars (Amazonian age) and have topographic similarities to fans in the southwestern US. Any geomorphic similarities between Death Valley fans and those within Mojave Crater can be assessed using surface roughness. Imagery from both the High Resolution Imaging Experiment (HiRISE) and Context Camera (CTX) onboard the Mars Reconnaissance Orbiter (MRO) were used to compare differences in spatial resolution on BRDF classifications. The resulting surface roughness maps are strikingly similar in classes and patterns to many fans within Death Valley. The surfaces interpreted by Williams and Malin (2008) to be evidence of multiple flow events are clearly classified using BRDF. In addition to age differences, possible locations of materials with different grain size and sorting are also identified. Since the BRDF classes of certain surface features on Earth and Mars fans largely overlap, field observations for each class type made for Death Valley fan surfaces may be useful for understanding the past fluvial processes on Mars and their similarities with fan forming processes in arid regions on Earth. This remote sensing approach has the potential to provide a tool for studying fans that may be inaccessible or too large for extensive fieldwork. JF - American Geophysical Union Fall Meeting AU - Doyle, S L AU - Wilkinson, M J AU - Scuderi, L A AU - Weissmann, G S AU - Scuderi, L J Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P42C EP - 02 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615443?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Using+the+Bidirectional+Reflectance+Distribution+Function+%28BRDF%29+for+remotely+mapping+surface+roughness+on+alluvial+fans%3A+A+comparison+of+Death+Valley%2C+CA+to+Mojave+Crater+on+Mars&rft.au=Doyle%2C+S+L%3BWilkinson%2C+M+J%3BScuderi%2C+L+A%3BWeissmann%2C+G+S%3BScuderi%2C+L+J&rft.aulast=Doyle&rft.aufirst=S&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Using the Abitibi Greenstone Belt to understand Martian hydrothermal systems and the potential for biosignature preservation in high temperature aqueous environments AN - 1832615442; 638262-49 AB - Impact and magmatic driven hydrothermal systems have long been postulated to exist on Mars. Recent observations of high-temperature mineral associations, e.g., smectite-chlorite-carbonate-serpentine, provide evidence consistent with the presence of hydrothermal environments in the ancient Martian rock record. In light of these discoveries, it is instructive to examine fossil hydrothermal systems on Earth to better understand the conditions under which putative Martian hydrothermal mineral assemblages may have formed. Such investigations may prove to be important in the era of Mars Sample Return, as we possess little scientific understanding of the biosignature preservation potential of ancient terrestrial hydrothermal systems. Motivated by these issues, the Agouron Institute organized a Geobiology Field School in July, 2011 to study the 2.7 Ga Abitibi greenstone belt in Ontario, CA. The Abitibi hosts world-renowned economic volcanogenic massive sulfide mineral deposits, and is characterized by a rich suite of lithologies emplaced predominantly in sub-oceanic settings, including komatiites, basalts, and rhyolitic volcanic rocks and banded iron formation, most of which have been hydrothermally altered, remineralized, and tectonically deformed under greenschist facies conditions. During a 10-day excursion to the Abitibi, guided by the Ontario Geological Survey, our team examined these assemblages, performed in-situ analyses using field portable active mid-IR and reflectance VIS-NIR spectrometers, an X-ray diffractometer, and an X-ray fluorescence spectrometer to inform an extensive sampling campaign. These samples have been returned to our laboratories for in-depth analysis. We will report on the outcome of our field campaign and discuss the unique opportunity provided by examination of the Abitibi to compare and contrast the effects of hydrothermal alteration and mineralization on an ocean planet with an active biosphere to a planet where the presence of large, long-lived water bodies and biology remain open questions. JF - American Geophysical Union Fall Meeting AU - Hurowitz, J A AU - Abelson, J AU - Allwood, A AU - Anderson, R B AU - Atkinson, B AU - Beaty, D AU - Bristow, T F AU - Ehlmann, B L AU - Eigenbrode, J L AU - Grotzinger, J P AU - Hand, K P AU - Halevy, I AU - Knoll, A AU - McCleese, D J AU - Milliken, R AU - Russell, M AU - Stolper, D A AU - Stolper, E M AU - Tosca, N J Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P33B EP - 1764 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615442?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Using+the+Abitibi+Greenstone+Belt+to+understand+Martian+hydrothermal+systems+and+the+potential+for+biosignature+preservation+in+high+temperature+aqueous+environments&rft.au=Hurowitz%2C+J+A%3BAbelson%2C+J%3BAllwood%2C+A%3BAnderson%2C+R+B%3BAtkinson%2C+B%3BBeaty%2C+D%3BBristow%2C+T+F%3BEhlmann%2C+B+L%3BEigenbrode%2C+J+L%3BGrotzinger%2C+J+P%3BHand%2C+K+P%3BHalevy%2C+I%3BKnoll%2C+A%3BMcCleese%2C+D+J%3BMilliken%2C+R%3BRussell%2C+M%3BStolper%2C+D+A%3BStolper%2C+E+M%3BTosca%2C+N+J&rft.aulast=Hurowitz&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Characterizing the geomorphology of fresh impact craters on Mercury AN - 1832615417; 638264-6 AB - Topographic data acquired by the Mercury Laser Altimeter (MLA) and images from the Mercury Dual Imaging System (MDIS) on the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft are used to investigate the geomorphology of several fresh impact craters on Mercury. This analysis expands on previous efforts with Mariner 10 data to understand how craters on Mercury compare to similarly sized craters on other planets and moons. In particular, comparisons to craters on Mars, which has a surface gravitational acceleration nearly identical to that of Mercury, yield insights into the effects of surface properties, especially target strength, on crater morphology. Establishing the geomorphology of typical fresh craters on Mercury also will provide a baseline for assessing the modification of less well-preserved craters by volcanism, tectonics, and subsequent impacts. Hokusai crater, whose rays envelop much of the planet, is one of the freshest on the surface of Mercury. High-resolution MDIS images ( nearly equal 36 m/pixel) reveal few superposed craters on this 100-km-diameter crater, and several MLA profiles that pass through its center indicate that it is nearly equal 2 km deep from rim crest to crater floor, making it extremely deep for a crater of its diameter on Mercury. Impact melt fills the interior of Hokusai this crater, embaying a semi-circular central peak structure. The melt possesses small cracks that are likely due to cooling. Small variations in brightness seen in the melt deposit seem to be associated with small undulations in the topography as measured by MLA, possibly due to the underlying terrain. Some of the impact melt lies in local depressions within the terraces of the crater wall, and some in patches located throughout the crater ejecta. Hokusai crater also possesses intriguing topographic features in its near-rim ejecta field. The MLA data indicate that the thickness of ejecta beyond the crater rim is not well modeled by a power-law function of radial distance r of the form (r/R) (super -3) , where R is the crater rim radius, as is often used to describe ejecta emplaced ballistically. A moat separates the rim from much of the continuous ejecta, which sometimes ends in a terminal rampart up to 500-m in height, somewhat reminiscent of single-layered ejecta facies seen on Mars. Equivalent-sized craters on the Moon do not possess such features. The run-out distance (r 2 R). The origin of Hokusai's ramparts is currently not understood, but they could be a result of granular flow processes that likely follow the initial ballistic deposition of ejecta. The vast amounts of melt present at this impact crater could also have influenced ejecta emplacement. Investigations of other fresh craters on Mercury will provide additional clues as to how observed ejecta facies are related to surface properties and the presence of impact melt. JF - American Geophysical Union Fall Meeting AU - Barnouin, O S AU - Ernst, C M AU - Neumann, G A AU - Chabot, N L AU - Murchie, S L AU - Smith, D E AU - Zuber, M T AU - Solomon, S C Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P41F EP - 06 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615417?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Characterizing+the+geomorphology+of+fresh+impact+craters+on+Mercury&rft.au=Barnouin%2C+O+S%3BErnst%2C+C+M%3BNeumann%2C+G+A%3BChabot%2C+N+L%3BMurchie%2C+S+L%3BSmith%2C+D+E%3BZuber%2C+M+T%3BSolomon%2C+S+C&rft.aulast=Barnouin&rft.aufirst=O&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Sample Processing technique onboard ExoMars (MOMA) to analyze organic compounds by Gas Chromatography-Mass Spectrometry AN - 1832615320; 638264-68 AB - With the aim of separating and detecting organic compounds from Martian soil onboard the Mars Organic Molecule Analyzer (MOMA) experiment of the ExoMars 2018 upcoming joint ESA/NASA mission, we have developed three different space compatible sample preparation techniques compatible with space missions, able to extract and analyze by GC-MS a wide range of volatile and refractory compounds, including chirality analysis. Then, a sample processing utilizing three derivatization/extraction reactions has been carried out. The first reaction is based on a silyl reagent N-Methyl-N- (Tert-Butyldimethylsilyl)trifluoroacetamide (MTBSTFA) [1], the second one, N,N-Dimethylformamide Dimethylacetal (DMF-DMA) [2,3] is dedicated to the chirality detection and the third one is a thermochemolysis based on the use of tetramethylammoniumhydroxide (TMAH). The sample processing system is performed in an oven, dedicated to the MOMA experiment containing the solid sample (50-100mg). The internal temperature of the oven ranges from 20 to 900 degrees C. The extraction step is achieved by using thermodesorption in the range of 100 to 300 degrees C for 5 to 20 min. Then, the chemical derivatization of the extracted compounds is performed directly on the soil sample by using a derivatyization capsule which contains a mixture of MTBSTFA-DMF or DMF-DMA solution when enantiomeric separation is required. By decreasing the polarity of the targeted molecules, this step allows their volatilization at a temperature below 250 degrees C without any thermal degradation. Once derivatized, the volatile target molecules are trapped in a chemical trap and promptly desorbed into the gas chromatograph coupled to a mass spectrometer. Thermochemolysis is directly performed in the oven at 400 degrees C during 5 min with a 25% (w/w) methanol solution of tetramethylammonium hydroxide (TMAH). Then, pyrolysis in the presence of TMAH allows both an efficient cleavage of polar bonds and the subsequent methylation of COOH, OH and NH2 groups, hence the release of less polar, GC-amenable compounds. By using thermochemolysis several families of biological molecules were detected such as fatty acids, n-alkenes and n-alkanols [4]. [1] A. Buch et al., Development of a gas chromatography compatible Sample Processing System (SPS) for the in-situ analysis of refractory organic matter in martian soil: preliminary result. Advances in Space Research 43, 143-151, 2009. [2] C. Freissinet et al., Journal of Chromatography A.1217 (5), 731-740, 2010. [3] U. Meierhenrich et al., Journal of Analytical and Applied Pyrolysis 60, 13-26, 2001. [4] C. Geffroy-Rodier et al., Journal of Analytical and Applied Pyrolysis, 85, 2009. JF - American Geophysical Union Fall Meeting AU - Buch, A AU - Freissinet, C AU - Sternberg, R AU - Szopa, C AU - Coll, P J AU - Brault, A AU - Pinnick, V AU - Siljestroem, S AU - Raulin, F AU - Steininger, H AU - Goesmann, F Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P43B EP - 1675 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615320?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Sample+Processing+technique+onboard+ExoMars+%28MOMA%29+to+analyze+organic+compounds+by+Gas+Chromatography-Mass+Spectrometry&rft.au=Buch%2C+A%3BFreissinet%2C+C%3BSternberg%2C+R%3BSzopa%2C+C%3BColl%2C+P+J%3BBrault%2C+A%3BPinnick%2C+V%3BSiljestroem%2C+S%3BRaulin%2C+F%3BSteininger%2C+H%3BGoesmann%2C+F&rft.aulast=Buch&rft.aufirst=A&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Surface characteristics and traversability of the gale crater Mars science laboratory landing site AN - 1832615319; 638262-55 AB - Comparison of remote sensing data of Gale crater with the existing six landing sites on Mars allows predictions of likely surface characteristics at the Mars Science Laboratory (MSL) landing site. The MSL Gale landing ellipse (25 by 20 km) is located on cratered plains just to the northwest of the central crater mound. Bulk thermal inertia of the Gale ellipse is greater than existing landing sites, suggesting a surface dominated by indurated or cemented surface materials. The albedo of the site is comparable to Viking Lander 1 (VL1) and the dust cover index of the ellipse is comparable to Mars Pathfinder (MPF) suggesting a moderately dusty surface. The identification of sulfates and clays in the lower part of the Gale mound (the area of greatest science interest), however, suggests this area is relatively dust free. Low resolution thermal differencing suggests about 10% rock abundance at the site. About 0.05% of the surface is covered by boulders >1.5 m diameter as measured in high-resolution images (0.3 m/pixel), which extrapolated along model Mars rock size-frequency distributions to derive the area covered by rocks >0.1 m diameter, suggest an equivalent rock abundance of nearly equal 6%. MOLA 1.2 km length bidirectional slopes and pulse spread (a measure of the roughness at nearly equal 75 m) at Gale are higher than existing landing sites, suggesting Gale is moderately rougher at these length scales. Slopes at 5 m length scale from high-resolution image stereogrammetry (1 m elevation postings) and photoclinometry indicate that Gale is comparable to the roughest of the existing landings sites (MPF and VL1) at this length scale. Four craters comprising nearly equal 0.2% of the ellipse area have walls steep enough to be considered inescapable if the rover were unfortunate enough to land within them. Six mesas that cover nearly equal 0.1% of the ellipse have slopes that are <45 degrees (the rover stability limit) so all should be escapable. Slopes within the cratered plains rarely exceed 15 degrees so there are few mobility concerns within the landing ellipse. A field of fresh, dark sand dunes extends from the southeastern to southern part of the landing ellipse. Slopes on many of the dunes exceeds the 15 degrees limit for traversing in unconsolidated sand. Nevertheless about 6 low slope paths (many of which are sand free) exist through the dunes so that traversing from the ellipse to the mound should be possible. Multiple traversable paths have been identified that cross the sulfate and clay layers identified in the lower part of the mound. Traversing above these layers higher into the mound dominated by more sulfate rich layers will be more challenging, requiring driving on specific paths ( nearly equal 6 have been identified) with slopes that are up to 30 degrees (the rover mobility limit on outcrop). JF - American Geophysical Union Fall Meeting AU - Golombek, M P AU - Bellutta, P AU - Beyer, R A AU - Calef, F J AU - Fergason, R L AU - Hoover, R H AU - Huerta, A AU - Kipp, D AU - Kirk, R L AU - Parker, T J AU - Sun, Y AU - Sladek, H L Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P33C EP - 1770 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615319?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Surface+characteristics+and+traversability+of+the+gale+crater+Mars+science+laboratory+landing+site&rft.au=Golombek%2C+M+P%3BBellutta%2C+P%3BBeyer%2C+R+A%3BCalef%2C+F+J%3BFergason%2C+R+L%3BHoover%2C+R+H%3BHuerta%2C+A%3BKipp%2C+D%3BKirk%2C+R+L%3BParker%2C+T+J%3BSun%2C+Y%3BSladek%2C+H+L&rft.aulast=Golombek&rft.aufirst=M&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Evolved gas measurements planned for the lower layers of the gale Crater Mound with the sample analysis at Mars instrument suite AN - 1832615277; 638262-64 AB - The lower mound strata of Gale Crater provide a diverse set of chemical environments for exploration by the varied tools of the Curiosity Rover of the Mars Science Laboratory (MSL) Mission. Orbital imaging and spectroscopy clearly reveal distinct layers of hydrated minerals, sulfates, and clays with abundant evidence of a variety of fluvial processes. The three instruments of the MSL Sample Analysis at Mars (SAM) investigation, the Quadrupole Mass Spectrometer (QMS), the Tunable Laser Spectrometer (TLS), and the Gas Chromatograph (GC) are designed to analyze either atmospheric gases or volatiles thermally evolved or chemically extracted from powdered rock or soil. The presence or absence of organic compounds in these layers is of great interest since such an in situ search for this type of record has not been successfully implemented since the mid-70s Viking GCMS experiments. However, regardless of the outcome of the analysis for organics, the abundance and isotopic composition of thermally evolved inorganic compounds should also provide a rich data set to complement the mineralogical and elemental information provided by other MSL instruments. In addition, these evolved gas analysis (EGA) experiments will help test sedimentary models proposed by Malin and Edgett (2000) and then further developed by Milliken et al (2010) for Gale Crater. In the SAM EGA experiments the evolution temperatures of H2O, CO2, SO2, O2, or other simple compounds as the samples are heated in a helium stream to 1000C provides information on mineral types and their associations. The isotopic composition of O, H, C, and S can be precisely determined in several evolved compounds and compared with the present day atmosphere. Such SAM results might be able to test mineralogical evidence of changing sedimentary and alteration processes over an extended period of time. For example, Bibring et al (2006) have suggested such a major shift from early nonacidic to later acidic alteration. We will illustrate through a variety of evolved gas experiments implemented under SAM-like gas flow and temperature ramp conditions on terrestrial analog minerals on high fidelity SAM breadboards the type of chemical information we expect SAM to provide. Bibring, J.-P., et al. (2006), Global mineralogical and aqueous Mars history derived from OMEGA/Mars Express data, Science, 312, 400-404, doi:10.1126/science.1122659. Malin, M. C., and K. S. Edgett (2000), Sedimentary rocks of early Mars, Science, 290, 1927-1937, doi:10.1126/science.290.5498.1927. Milliken, R. E., J. P. Grotzinger, and B. J. Thomson (2010), Paleoclimate of Mars as captured by the strati- graphic record in Gale Crater, Geophys. Res. Lett., 37, L04201, doi:10.1029/2009GL041870. JF - American Geophysical Union Fall Meeting AU - Mahaffy, P R AU - Franz, H AU - McAdam, A AU - Conrad, P G AU - Brunner, A AU - Cabane, M AU - Webster, C R Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P33C EP - 1779 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615277?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Evolved+gas+measurements+planned+for+the+lower+layers+of+the+gale+Crater+Mound+with+the+sample+analysis+at+Mars+instrument+suite&rft.au=Mahaffy%2C+P+R%3BFranz%2C+H%3BMcAdam%2C+A%3BConrad%2C+P+G%3BBrunner%2C+A%3BCabane%2C+M%3BWebster%2C+C+R&rft.aulast=Mahaffy&rft.aufirst=P&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Systematic variations in sinter mineralogy, microtexture and diagenesis in modern siliceous hot springs: Clues for interpreting depositional conditions in ancient deposits AN - 1832615221; 638262-52 AB - The deposits of siliceous hydrothermal springs are known to capture and preserve a wide range of microbial fossil information. The recent discovery of hydrothermal silica at Home Plate, Columbia Hills, Mars has once again raised interest in the potential importance of ancient spring sinters as targets for future astrobiological mission to Mars. To create additional context information to support future in situ missions to Mars, we have documented systematic changes in the mineralogy and microtexture of modern siliceous hot spring deposits, observed along gradients in temperature, pH and flow velocity. Specific objectives are to: 1) identify chemical and physical factors that promote early diagenetic transformations of amorphous silica (opal-A), to progressively more ordered and crystalline phases (cristobalite, tridymite and quartz); 2) determine the composition and abundance of minor mineral phases, especially clays, in relationship to pH, temperature and paragenesis; and 3) to assess the usefulness of sinter mineralogy and microtexture in reconstructing the paleoenvironmental records preserved in ancient deposits. Study sites for acidic (pH 2-5) sinters included Nymph Creek, located in the Norris Geyser Basin of Yellowstone National Park (YNP). Active alkaline (pH 7-10) springs included Rabbit Creek, Steep Cone and Mound Spring located in the Lower Geyser Basin, YNP. Field measurements in active springs included pH, temperature and flow velocity, along with general microfacies assignments. To better constrain types and rates of silica diagenesis, the study also sampled older (Holocene-Pleistocene-aged) deposits. Laboratory analyses included X-ray powder diffraction (XRPD), thermal infrared spectroscopy (TIR) and thin section petrography for characterizing sinter microtextures and for placing mineral phases (identified by XRPD and TIR) into a time-ordered diagenetic framework. In analyzing the phyllosilicates present in sinters, we applied clay separation and glycolization methods, with XRPD. Results indicate that all of the acidic sinters we studied showed more extensive early diagenetic ordering of silica phases (opal-A to cristobalite and quartz) than the comparable microfacies of alkaline-neutral sinters. Clay analyses showed no evidence for smectitic (expansive) clays, but kaolin family clays (dickite, kaolinite and halloysite) were present in both acidic and alkaline sinters. The microfacies distribution observed for clays suggests: 1) dickite being more abundant in higher temperature (near-vent) microfacies, 2) kaolinite dominating mid-temperature outflow channels, slope and upper distal apron microfacies, and 3) halloysite being restricted to lower distal apron-marsh microfacies transitions. Future work will expand clay analyses to apply near-IR spectroscopy to a broader range of samples to assess the consistency with patterns suggested from XRPD. JF - American Geophysical Union Fall Meeting AU - Mills, V W AU - Farmer, J D AU - Ruff, S W AU - Nunez, J AU - Jahnke, L L Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P33B EP - 1767 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615221?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Systematic+variations+in+sinter+mineralogy%2C+microtexture+and+diagenesis+in+modern+siliceous+hot+springs%3A+Clues+for+interpreting+depositional+conditions+in+ancient+deposits&rft.au=Mills%2C+V+W%3BFarmer%2C+J+D%3BRuff%2C+S+W%3BNunez%2C+J%3BJahnke%2C+L+L&rft.aulast=Mills&rft.aufirst=V&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Atmospheric escape, redox evolution, and planetary habitability AN - 1832614641; 638261-39 AB - Through the greenhouse effect, the presence and composition of an atmosphere is critical for defining a (conventional) circumstellar habitable zone in terms of planetary surface temperatures suitable for liquid water. Lack of knowledge of planetary atmospheres is likely to frustrate attempts to say with any certainty whether detected terrestrial-sized exoplanets may or may not be habitable. Perhaps an underappreciated role in such considerations is the evolutionary effect of atmospheric escape for determining atmospheric composition or whether an atmosphere exists in the first place. Whether atmospheres exist at all on planets is demonstrably connected to the effect of integrated atmospheric escape. When we observe our own Solar System and transiting exoplanets, the existence of an atmosphere is clearly delineated by a relative vulnerability to thermal escape and impact erosion. The prevalence of thermal escape as a key evolutionary determinant for the presence of planetary atmosphere is shown by a relationship between the relative solar (or stellar) heating and the escape velocity. Those bodies with too much stellar heating and too smaller escape velocity end up devoid of atmospheres. Impact erosion is evident in the relationship between impact velocity and escape velocity. Escape due to impacts is particularly important for understanding the large differences in the atmospheres of giant planet moons, such as Ganymede versus Titan. It is also significant for Mars-sized planets. The oxidation state of atmospheres is important for some theories of the origin of life (where an early reducing atmosphere is helpful for organic synthesis) and the evolution of advanced life (where free molecular oxygen is the best source of high energy metabolism). Surfaces on some relatively small planets and moons are observed to have evolved to an oxidized state, which theory and observation can explain through atmospheric escape. There are several examples in the Solar System where a net escape of hydrogen relative to heavier oxygen is the generally accepted explanation for the present oxidation state: Venus and Mars amongst the planets, and Ganymede, Europa, and Rhea amongst bodies with extremely tenuous atmospheres. We also argue that hydrogen escape was the key factor for oxidizing the Earth and facilitating the increase of photosynthetically-produced oxygen in the Proterozoic atmosphere. Our view about the primacy of hydrogen escape with regard to the Earth's atmospheric oxygenation is perhaps less widely accepted. However, it was inevitable that hydrogen escaped from Earth's early anoxic atmosphere at a significant rate. The result was a very big integrated oxidation consistent with what is observed in the Earth's crust in addition to some export to the mantle. In conclusion, a better understanding of atmospheric escape processes appears critical for understanding the suitability of planets for harboring life from simple to advanced forms. JF - American Geophysical Union Fall Meeting AU - Catling, D C AU - Zahnle, K J Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P24B EP - 03 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832614641?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Atmospheric+escape%2C+redox+evolution%2C+and+planetary+habitability&rft.au=Catling%2C+D+C%3BZahnle%2C+K+J&rft.aulast=Catling&rft.aufirst=D&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Allophane at mawrth vallis: implications for aqueous alteration history AN - 1832614447; 638261-67 AB - The detection of clay minerals and other secondary silicates in light-toned surfaces at Mawrth Vallis from near-infrared (NIR) spectroscopy indicates that this surface experienced aqueous alteration. The types of alteration products can help constrain past aqueous environments to assess habitability. NIR data from OMEGA and CRISM show a Fe/Mg-smectite layer stratigraphically below a layer containing a variety of secondary silicates, including kaolinite, montmorillonite, beidellite, and amorphous silica (Bishop et al., 2010). Detections of Fe/Mg-smectites at Mawrth Vallis suggest that the lower layer experienced aqueous alteration at alkaline pH, while detections of kaolinite and amorphous silica suggest that the upper layer experienced intense acidic alteration (Bibring et al., 2006; Bishop et al., 2008). Thermal-infrared (TIR) spectroscopy is an essential tool for identifying both primary and secondary silicate minerals. Previous models of Thermal Emission Spectrometer (TES) data from Mawrth indicate clays are present in dark surfaces, while amorphous silica is present in light-toned surfaces (Michalski and Fergason, 2009). However, spectral libraries have heretofore lacked nano-crystalline weathering products, such as allophane, that are important constituents of terrestrial soils. Their identification at Mawrth can help further understand alteration environments and soil formation processes. We synthesized allophanes and gels with a range of Si/Al ratios and measured their TIR emission and NIR reflectance spectra. TES data from dark- and light-toned surfaces at Mawrth were modeled using a spectral library containing allophanes and other secondary silicates. Models of dark-toned surfaces identify 20 vol.% allophane, 10% phyllosilicates and zeolites, and 45% basaltic igneous minerals. Models of bright-toned surfaces identify up to 30% allophane, 25% montmorillonite, and 30-35% basaltic igneous minerals. The identification of allophane in bright-toned surfaces is consistent with the detection of amorphous silica from CRISM data because silica and allophane have similar NIR spectra. On Earth, allophanes are found in basalt weathering rinds and in well-drained ash and tephra deposits that have been weathered at low temperatures and near-neutral pH (Colman, 1982; Wada, 1989). The detection of allophanes in dark-toned Mawrth surfaces with low clay and high igneous mineral abundances suggests these surfaces are weakly weathered basalts. The detection of allophanes and montmorillonite in bright-toned surfaces suggests this unit experienced multiple aqueous conditions. Allophane indicates formation in well-drained environments at near-neutral conditions and low water-to-rock ratios, while montmorillonite indicates formation in poorly-drained environments and higher water-to-rock ratios. Additionally, bright-toned deposits are layered on meter to decimeter scales and drape topography (Michalski and Noe Dobrea, 2007; Bishop et al., 2008). The morphology of these units and the detection of allophane from TIR and NIR spectroscopy indicate these units are weakly to moderately altered volcanic ash deposits and may not have experienced intense acidic alteration. JF - American Geophysical Union Fall Meeting AU - Rampe, E B AU - Sharp, T G AU - Kraft, M D Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P31C EP - 1716 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832614447?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Allophane+at+mawrth+vallis%3A+implications+for+aqueous+alteration+history&rft.au=Rampe%2C+E+B%3BSharp%2C+T+G%3BKraft%2C+M+D&rft.aulast=Rampe&rft.aufirst=E&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - The surface composition of titan AN - 1832614167; 638262-20 AB - Determining the surface composition of Titan has been inhibited by the lack of spectral properties of potential compounds. We have measured the 0.35 to 5-micron spectral reflectance of a wide range of compounds that might be relevant to Titan and trends are now coming to light with possible spectral matches for classes of materials. While some compounds have been identified and mapped on Titan's surface, such as liquid ethane + methane lakes and benzene, the compounds responsible for the main spectral properties have remained elusive (Clark et al, JGR 2010). Titan's surface is seen in the near infrared in only a few spectral windows, near 0.94, 1.1, 1.3, 1.6, 2.0, 2.68-2.78, and 4.9-5.1 microns in the Cassini Visual and Infrared Mapping Spectrometer (VIMS) spectral range. At shorter wavelengths, UV absorption in the spectra of Titan's haze constrains the surface composition because haze particles settle onto Titan's surface. The average apparent reflectance in the IR windows generally decreases with increasing wavelength except for the 2.7 and 5-micron windows which are at similar levels. The decrease has led researchers to infer a number of compounds responsible for the observed decreasing spectral shape; the most common being water ice. But ice is incompatible with the 2.78/2.68 micron I/F ratio. Many organic compounds have absorptions that are not seen in spectra of Titan, eliminating them as possible major components at the surface, including many polycyclic aromatic hydrocarbons (PAH) previously thought to be compatible with parts of Titan's spectrum. We find that ring compounds similar to benzene rings, but with some C-H bonds replaced by NH have a closer match to Titan's overall spectrum and can explain the relative intensities observed in the spectral windows, including the 2.68 and 2.78-micron double window, the low 3-5 micron reflectance, and increased absorption near 2.1-microns. Key among these compounds that show general properties that match Titan are Cytosine (C4H5N3O), Uracil (C4H4N2O2), Guanine (C5H5N5O), and Adenine (C5H5N5). These compounds are the four nucleobases in the nucleic acid of RNA. If these compounds can be confirmed to be on Titan, their formation pathways may have implications for the formation of life. Other compounds that match features in Titan's spectra include the polycyclic aromatic hydrocarbon (PAH) coronene, consisting of 6 benzene rings. Coronene is also a naturally occurring mineral on Earth, known as karpatite. Combinations of coronene, phenanthene (C14H12), pentacene (C22H14), indole (C8H7N), Cytosine, Uracil, Guanine, and Adenine match the overall spectral structure of Titan spectra. Indole, Cytosine, and Uracil, have 1.5-micron bands that can explain the feature observed in DISR spectra of Titan's surface. These compounds can also help explain the pyrolysis results from the Huygens probe. JF - American Geophysical Union Fall Meeting AU - Clark, R N AU - Pearson, N AU - Brown, R H AU - Cruikshank, D P AU - Barnes, J W AU - Jaumann, R AU - Soderblom, L A AU - Griffith, C A AU - Rodriguez, S AU - Le Mouelic, S AU - Lunine, J AU - Sotin, C AU - Baines, K H AU - Buratti, B J AU - Nicholson, P D AU - Nelson, R AU - Stephan, K Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P32C EP - 03 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832614167?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+surface+composition+of+titan&rft.au=Clark%2C+R+N%3BPearson%2C+N%3BBrown%2C+R+H%3BCruikshank%2C+D+P%3BBarnes%2C+J+W%3BJaumann%2C+R%3BSoderblom%2C+L+A%3BGriffith%2C+C+A%3BRodriguez%2C+S%3BLe+Mouelic%2C+S%3BLunine%2C+J%3BSotin%2C+C%3BBaines%2C+K+H%3BBuratti%2C+B+J%3BNicholson%2C+P+D%3BNelson%2C+R%3BStephan%2C+K&rft.aulast=Clark&rft.aufirst=R&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Fluvial features on titan: new insights from morphology and hydraulic modeling AN - 1832614038; 638262-19 AB - Fluvial features on Titan have been inferred in data from surface imaging instruments on the Cassini spacecraft (Image Science Subsystem, ISS; Visual and Infrared Mapping Spectrometer, VIMS; Cassini Titan RADAR Mapper, RADAR) and the Huygens probe (Descent Imager/Spectral Radiometer, DISR). Interpretations of these features using terrestrial classifications and analogs offer insight into their formative processes and controls. Networks may be classified using a modified version of an algorithm developed from terrestrial drainage networks. As each network class carries different landscape-scale implications, these classifications provide information on the regional geology. For example, rectangular networks, the dominant drainage pattern on Titan, imply structural control. Individual fluvial features provide more localized information and may be classified using simple plan view parameters of relative width, length, and RADAR albedo into six descriptive classes, which have multiple hypothesized interpretations. At the highest resolution observations of Titan, DISR images show uplands dissected by river valley networks, which are not visible in lower resolution SAR data. This comparison of DISR and SAR images suggests (1) that some fluvial features observed in SAR data elsewhere may be river valleys instead of channels as previously denoted, and (2) that other uplands on Titan may likewise be fluvially dissected below SAR resolution. Crenulated (mountainous, hummocky) terrain is hypothesized here to have such sub-resolution fluvial dissection, based on (a) emergent fluvial features at lakes and (b) terrestrial data over dissected landscapes that illustrate the underrepresentation of fluvial dissection in SAR data. Fluvial deposits occur in (paleo)lake basins and on SAR-dark plains. For fully turbulent flow over a rough boundary, hydraulic equations are insensitive to fluid viscosity, so that terrestrial formulations are applicable to Titan flow when the difference in material properties (i.e., gravity, fluid density and viscosity, sediment densities) is accounted for. However, for low Reynolds number flow over a smooth boundary, knowledge of fluid kinematic viscosity is necessary for quantitative predictions of flow rates. Sediment movement and bedform development are also influenced by material properties. The reduced sediment density and fluid viscosity for Titan largely balance each other out, so that the predominant effect is the lower gravity, which results in movement and bedforms occurring at lower bed shear stress on Titan than on Earth. However, scaling bedrock erosion is hampered by uncertainties regarding Titan material properties. JF - American Geophysical Union Fall Meeting AU - Burr, D M AU - Adamkovics, M AU - Baker, V R AU - Collins, G C AU - Howard, A D AU - Irwin, R P AU - Lamb, M P AU - Moore, J M AU - Perron, T AU - Sklar, L S AU - Drummond, S AU - Black, B A Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P32C EP - 02 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832614038?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Fluvial+features+on+titan%3A+new+insights+from+morphology+and+hydraulic+modeling&rft.au=Burr%2C+D+M%3BAdamkovics%2C+M%3BBaker%2C+V+R%3BCollins%2C+G+C%3BHoward%2C+A+D%3BIrwin%2C+R+P%3BLamb%2C+M+P%3BMoore%2C+J+M%3BPerron%2C+T%3BSklar%2C+L+S%3BDrummond%2C+S%3BBlack%2C+B+A&rft.aulast=Burr&rft.aufirst=D&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - SHARAD investigation of the interaction between volcanism and deep water release in Elysium planitia, Mars AN - 1832613898; 638261-62 AB - Situated between the equator and 12 degrees N and extending from 130 degrees to 180 degrees E, Elysium Planitia is considered to be the youngest volcanic plain on Mars. Recent crater counts on individual lava units argue for multiple phases of activity over the last 230 Myrs, with the most recent volcanic features dating to just nearly equal 2 Ma. The region also contains the youngest outflow channels on the planet. Multiple channel systems which are present across the region are interpreted to have been carved by the release of deep ground water (>1 km) from the broadly east-west trending Cerberus Fossae graben system. Elysium Planitia is therefore a region of high scientific interest, as it represents an ideal site to investigate the interaction of lava and water both below and on the surface of Mars. Extensive geologic mapping of Elysium Planitia has provided detailed information concerning the stratigraphy of the major volcanic units in addition to the classification of other landforms attributed to volcanic (e.g. small shields), fluvial (e.g. outflow channels) and aeolian (e.g. yardangs) activity. Orbital sounding radar provides a means to take this work to the next level through the mapping of buried surfaces associated with a contrast in dielectric permittivity and thus can be used to investigate the 3-D structure of the subsurface. Previous studies using the SHARAD radar sounder onboard the Mars Reconnaissance Orbiter have identified multiple subsurface reflectors below the plains of Elysium Planitia. We will present our investigation of SHARAD data covering the eastern portion of this region of Mars - an area that includes the upstream reaches of Marte Vallis and the eastern extent of Cerberus Fossae. Our subsurface mapping shows remarkable correlations with published geologic maps produced using visible orbital datasets. These similarities allow us to use SHARAD data to make estimates of the average permittivity values and imply density measurements of the volcanic units. We will present these estimates and compare them to values derived over other young volcanic regions on Mars. Sounding radar provides the only type of orbital instrument to derive bulk estimates of geochemical properties of martian volcanic materials. Additionally we have identified the original fluvial eroded bed of Marte Vallis, prior to burial by younger lava flows. Through the mapping of the associated fluvial features we are able to tie the origin of Marte Vallis to Cerberus Fossae and provide further support for the recent (Late Amazonian) deep subsurface release of water on the surface of Mars. Our work will provide valuable constraints on the influence of recent volcanism on martian subsurface reservoirs of water. JF - American Geophysical Union Fall Meeting AU - Morgan, G A AU - Campbell, B A AU - Carter, L M AU - Plaut, J J Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P31B EP - 1711 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832613898?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=SHARAD+investigation+of+the+interaction+between+volcanism+and+deep+water+release+in+Elysium+planitia%2C+Mars&rft.au=Morgan%2C+G+A%3BCampbell%2C+B+A%3BCarter%2C+L+M%3BPlaut%2C+J+J&rft.aulast=Morgan&rft.aufirst=G&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Visible and near-IR reflectance spectra of smectite acquired under dry conditions for interpretation of martian surface mineralogy AN - 1832607723; 638261-82 AB - Visible and near-IR (VNIR) spectra from the MEx OMEGA and the MRO CRISM hyper-spectral imaging instruments have spectral features associated with the H2O molecule and M OH functional groups (M = Mg, Fe, Al, and Si). Mineralogical assignments of martian spectral features are made on the basis of laboratory VNIR spectra, which were often acquired under ambient (humid) conditions. Smectites like nontronite, saponite, and montmorillionite have interlayer H2O that is exchangeable with their environment, and we have acquired smectite reflectance spectra under dry environmental conditions for interpretation of martian surface mineralogy. We also obtained chemical, Moessbauer (MB), powder X-ray diffraction (XRD), and thermogravimetric (TG) data to understand variations in spectral properties. VNIR spectra were recorded in humid lab air at 25-35C, in a dynamic dry N2 atmosphere (50-150 ppmv H2O) after exposing the smectite samples (5 nontronites, 3 montmorillionites, and 1 saponite) to that atmosphere for up to nearly equal l000 hr each at 25-35C, nearly equal 105C, and nearly equal 215C, and after re-exposure to humid lab air. Heating at 105C and 215C for nearly equal 1000 hr is taken as a surrogate for geologic time scales at lower temperatures. Upon exposure to dry N2, the position and intensity of spectral features associated with M-OH were relatively insensitive to the dry environment, and the spectral features associated with H2O (e.g., nearly equal 1.90 um) decreased in intensity and are sometimes not detectable by the end of the 215C heating step. The position and intensity of H2O spectral features recovered upon re-exposure to lab air. XRD data show interlayer collapse for the nontronites and Na-montmorillionites, with the interlayer remaining collapsed for the latter after re-exposure to lab air. The interlayer did not collapse for the saponite and Ca-montmorillionite. TG data show that the concentration of H2O derived from structural OH was invariant to the dry N2 treatment for saponite and the montmorillionites, but the nontronites had additional structural OH after treatment. Upon exposure to dry N2, the VNIR spectra also acquired a red slope with decreasing albedo between nearly equal 0.4 and nearly equal 2.0 um. The magnitude of the effects covaries with exposure time to dry N2 and heating temperature. Upon re-exposure to lab air, the slope and albedo do not completely recover to pre-exposure values. MB data show that these effects do not result from partial reduction of ferric to ferrous iron, and TG data show they do not result from loss of structural OH. Possible explanations include formation of small clusters of (superparamagnetic) ferric oxide and reduced smectite crystallainity. The difference in spectral properties between spectra acquired in humid lab air and under dry conditions are consequential for interpretation of CRISM and OMEGA spectra. For example, nontronite by itself and not nontronite plus ferrihydrite can account for the red spectral slope in martian spectra where nontronite is indicated by the Fe-OH spectral features. JF - American Geophysical Union Fall Meeting AU - Morris, R V AU - Achilles, C N AU - Archer, P D AU - Graff, T G AU - Agresti, D G AU - Ming, D W AU - Golden, D C AU - Mertzman, S A Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P31D EP - 1731 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832607723?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Visible+and+near-IR+reflectance+spectra+of+smectite+acquired+under+dry+conditions+for+interpretation+of+martian+surface+mineralogy&rft.au=Morris%2C+R+V%3BAchilles%2C+C+N%3BArcher%2C+P+D%3BGraff%2C+T+G%3BAgresti%2C+D+G%3BMing%2C+D+W%3BGolden%2C+D+C%3BMertzman%2C+S+A&rft.aulast=Morris&rft.aufirst=R&rft.date=2011-12-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - The impact of a realistic vertical dust distribution on the general circulation of the martian atmosphere AN - 1832607712; 638261-29 AB - Atmospheric dust is a major driver of the atmospheric dynamics and has first order impacts on the climate, because it is highly radiatively active. Variations in the amount and distribution of dust significantly influences the general circulation of the atmosphere, including both the mean and eddy components. The Mars Climate Sounder (MCS) aboard the Mars Reconnaissance Orbiter has provided information about the vertical structure of dust in greater detail than ever before. One of the most intriguing features revealed by the MCS dust data set is a persistent, local maximum of dust mixing ratio at altitudes of 15-20 km above ground level, particularly at low latitudes. This profile is in contrast to the typically assumed and widely used Conrath-nu dust profile that has a nearly constant mixing ratio in the boundary layer and then decreases with height at a user-specified rate. With the exception of recent general circulation models (GCMs), however, that employ a fully interactive dust cycle and make few assumptions about the dust distribution, most of the knowledge about the climate and dynamics of Mars' atmosphere has been obtained or supported solely by GCMs that have used a Conrath-nu --like dust profile. In our paper, we present results from the NASA Ames Mars GCM forced by a dust distribution data set derived from the MCS vertical dust profiles. We identify and discuss the impact on the general circulation of using a realistic dust distribution when compared to the more typical Conrath-nu prescription. JF - American Geophysical Union Fall Meeting AU - Rothchild, A T AU - Rafkin, S C AU - Kahre, M A AU - Pielke, R A Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P24A EP - 05 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832607712?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+impact+of+a+realistic+vertical+dust+distribution+on+the+general+circulation+of+the+martian+atmosphere&rft.au=Rothchild%2C+A+T%3BRafkin%2C+S+C%3BKahre%2C+M+A%3BPielke%2C+R+A&rft.aulast=Rothchild&rft.aufirst=A&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Triggering a wet climate on Mars: the role of outflow channels in martian water cycles AN - 1832606685; 638261-11 AB - The triggering of a robust water cycle on Mars has been hypothesized to be caused by gigantic flooding events evidenced by outflow channels. Here we use the Ames Mars General Circulation Model (MGCM) to study how these presumably abrupt eruptions of water (Carr,1996) affected the climate of Mars. We model where the water ultimately went as part of a transient hydrologic cycle. Chryse Planitia, east of Tharsis, has evidence for multiple water outflow channels. One of the largest channels is Ares Valles, which was carved by floods with estimated water volumes of order 10 (super 5) km (super 2) (Andrews-Hanna, 2007 & Carr, 1996). Outflow discharge rate estimates range from 10 (super 6) to 10 (super 7) m (super 3) /seconds or greater (Andrews-Hanna & Phillips, 2007, Harrison & Grimm, 2008). Studies suggest that outflow channels formed with smaller, successive floods instead of a single large flood (Wilson, et al.,2004). Warner et al. (2009) suggest up to six outflow events for the formation of Ares Valles, while estimates for another large outflow, Kasei Valles, might have been flooded by over two thousand floods with a total water volume of 5.5 x 10 (super 5) km (super 3) (Harrison & Grimm, 2008). By adding water to the surface of Mars at the given outflow rate, as an expanding one-layer lake, we are able to study quantitatively how these outflow events influenced Mars climate, particularly the hydrologic cycle. In particular: Could sudden introductions of large amounts of water on the Martian surface lead to a new equilibrated water cycle? Can we tie certain fluvial surface features to transient or sustained water cycles? What are the roles of water vapor and water ice clouds to sudden changes in the water cycle on Mars? How are radiative feedbacks involved with this? What is the ultimate fate of the outflow water? This work uses the NASA Ames MGCM version 2.1 and other schemes that are part of the NASA Ames MGCM suite of tools. Various versions of the MGCM developed at Ames have been used extensively to examine dust and volatile distributions on Mars (e.g., Kahre et al., 2006, 2008). The MGCM 2.1 currently has a well-developed water ice cloud formation scheme (Montmessin et al., 2002, 2004a), which includes calculation of cloud particle concentrations, nucleation, growth, and gravitational sedimentation. For examining the effect of a large water outflow on the climate of Mars, we include water tracers, with an advanced cloud particle scheme Preliminary results suggest that water may have been transported globally for years post-outflow. Post-outflow water cloud formation increases dramatically, with water ice clouds and water vapor potentially transporting water globally. The global mass of water vapor and of water ice clouds increases substantially, with the post-outflow patterns settling into annual cycles, with increasing water entering the atmosphere from the surface over time. Future work will examine the radiative effects of the water vapor and water ice clouds, and the longer-term persistence of a new hydrological or climate regime Detailed comparisons of post-outflow precipitation locations with fluvial features on Mars will be done. JF - American Geophysical Union Fall Meeting AU - Santiago, D AU - Asphaug, E I AU - Colaprete, A Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P23E EP - 06 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832606685?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Triggering+a+wet+climate+on+Mars%3A+the+role+of+outflow+channels+in+martian+water+cycles&rft.au=Santiago%2C+D%3BAsphaug%2C+E+I%3BColaprete%2C+A&rft.aulast=Santiago&rft.aufirst=D&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Investigating the geomorphic behavior of the Cape Canaveral coast through high-resolution beach monitoring, sediment analysis, oceanographic observations, and numerical modeling AN - 1828846423; 2016-085563 AB - The salient of Cape Canaveral interrupts a relatively straight, sandy, passive margin coastline that extends nearly 400 km from the St. Johns River mouth to the St. Lucie Inlet along the Florida Atlantic coast. OSL dating indicates that the modern cape has been prograding rapidly since the LGM and subtle topographic features, inland from the modern cape, suggest that this salient has persisted over several sea level cycles since the early Pleistocene. Dynamic shoreline change over the past decade at the Kennedy Space Center (KSC) is threatening critical NASA infrastructure and has prompted officials to develop a mitigation strategy through a partnership among researchers from the U.S. Geological Survey, the U.S. Army Corps of Engineers, private coastal engineering firms, and the University of Florida. Since May 2009, the research team has assembled data on decadal to event-scale shoreline change (dGPS), beach and nearshore morphodynamics (dGPS and Argus), beach sedimentary character (grain size analysis), wave climate and transformation (ADCP), and inner shelf bathymetry (Echo Sounding) in an effort to assess dune vulnerability and flooding risk. In addition, SWAN numerical modeling simulations offer insight into the influence of irregular bathymetry (cape-associated shoals) on the alteration of spatial patterns of wave energy flux during a decadal shift in deep-water wave climate. Beach-fx, modeling of cross-shore profile evolution is being applied to evaluate the performance of alternative protective measures, estimate project costs, and examine ecological influences of the proposed alternative protective measures. By combining contemporaneous data of coastal geomorphic and sedimentary response to wave forcing with numerical model results that explore a range of climate scenarios, we aim to develop a useful understanding of the coastal geomorphic behavior at KSC that can be used to make a mitigation recommendation. JF - American Geophysical Union Fall Meeting AU - Adams, Peter N AU - Jaeger, J M AU - MacKenzie, R A AU - Kline, S W AU - Maibauer, B J AU - Plant, N G AU - Gravens, M B AU - Pierro, T P AU - Shaffer, J AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract EP51D EP - 07 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - sand KW - shore features KW - numerical models KW - Cape Canaveral KW - clastic sediments KW - grain size KW - sedimentation KW - shorelines KW - simulation KW - Florida KW - beaches KW - sea-level changes KW - Saint Johns River basin KW - Brevard County Florida KW - sediments KW - inner shelf KW - ecology KW - continental shelf KW - bathymetry KW - climate forcing KW - dynamic properties KW - 23:Geomorphology KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828846423?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Investigating+the+geomorphic+behavior+of+the+Cape+Canaveral+coast+through+high-resolution+beach+monitoring%2C+sediment+analysis%2C+oceanographic+observations%2C+and+numerical+modeling&rft.au=Adams%2C+Peter+N%3BJaeger%2C+J+M%3BMacKenzie%2C+R+A%3BKline%2C+S+W%3BMaibauer%2C+B+J%3BPlant%2C+N+G%3BGravens%2C+M+B%3BPierro%2C+T+P%3BShaffer%2C+J%3BAnonymous&rft.aulast=Adams&rft.aufirst=Peter&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-10-25 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - bathymetry; beaches; Brevard County Florida; Cape Canaveral; clastic sediments; climate forcing; continental shelf; dynamic properties; ecology; Florida; grain size; inner shelf; numerical models; Saint Johns River basin; sand; sea-level changes; sedimentation; sediments; shore features; shorelines; simulation; United States ER - TY - JOUR T1 - Partial melting of carbonated pelite at 3-7 GPa and deep cycling of CO (sub 2) and H (sub 2) O in subduction zones AN - 1815667305; 2016-073136 AB - The exchange of water and carbon dioxide between the Earth's crustal rocks and the interior is important for understanding geochemical and geophysical evolution of the planet on geologic timescale. Subduction of pelitic sediments is a key mechanism for volatile introduction to the mantle but the high-pressure behavior of H (sub 2) O+ CO (sub 2) bearing sediments is only constrained for alumina-rich, low-Mg# bulk compositions [1, 2]. However, the ocean-floor sediments for many subduction zones that contain both water and CO (sub 2) are alumina-poor and have higher Mg#. To constrain the melting behavior of a model alumina poor carbonated pelite, we performed new experiments. Piston cylinder (3 GPa) and multianvil (5 and 7 GPa) experiments were conducted between 800 and 1150 degrees C, using a model sediment composition containing 1 wt.% H (sub 2) O and 5 wt.% CO (sub 2) (trace vapor-present at subsolidus conditions). The choice of the bulk composition was aimed to model the loss of siliceous hydrous fluid during the shallow part of subduction. We determined the solidus temperatures between 800 and 850 degrees C at 3 GPa, 900 and 950 degrees C at 5 GPa, and or =5.5 GPa. Carbonate-silicate melt immiscibility was observed at 5 GPa, 1100 degrees C in our study. The phengite-out boundary is located between 850 and 900 degrees C at 3 GPa, between 1000 and 1100 degrees C at 5 GPa, and <1000 degrees C at 7 GPa. The crystalline carbonate-out boundary is between 950 and 1000 degrees C at 3 and 5 GPa, and <1000 degrees C at 7 GPa. Comparison of our results, in terms of the P-T locations of the solidus, phengite- and carbonate-out boundaries, to the thermal structures of the slab-surface in cold-intermediate subduction zones indicates that most of the phengite-bound H (sub 2) O and carbonate-bound CO (sub 2) are recycled into the deep upper mantle ( approximately 200 km depth). On the other hand, substantial amounts of C-O-H volatiles, in the form of either hydrous silicate melt or K-rich calcio-carbonatitic melt, are likely to be released from relatively hot subducting slabs. The observation of carbonate melt inclusion in cpx and garnet in deeply subducted carbonate-rich sediments [3] might be explained by our experimental results that carbonatite is the stable near-solidus sediment melt at deep sub-arc depths. [1] Thomsen, T.B. and Schmidt, M.W. 2008, EPSL 267, 17-31. [2] Grassi, D. and Schmidt, M.W. 2011, J. Petrol. 52, 765-789. [3] Korsakov, A.V., and Hermann, J. 2006, EPSL, 104-118. JF - American Geophysical Union Fall Meeting AU - Tsuno, Kyusei AU - Dasgupta, Rajdeep AU - Danielson, Lisa R AU - Righter, Kevin AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract T51H EP - 2453 PB - American Geophysical Union, Washington, DC VL - 2011 KW - silicates KW - volcanic rocks KW - igneous rocks KW - partial melting KW - siliceous composition KW - melts KW - carbon dioxide KW - mica group KW - trachytes KW - phengite KW - sediments KW - orthosilicates KW - carbonatites KW - P-T conditions KW - water KW - concentration KW - pressure KW - kyanite KW - subduction KW - high pressure KW - nesosilicates KW - volatiles KW - plate tectonics KW - sheet silicates KW - crust KW - 17B:Geophysics of minerals and rocks KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815667305?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Partial+melting+of+carbonated+pelite+at+3-7+GPa+and+deep+cycling+of+CO+%28sub+2%29+and+H+%28sub+2%29+O+in+subduction+zones&rft.au=Tsuno%2C+Kyusei%3BDasgupta%2C+Rajdeep%3BDanielson%2C+Lisa+R%3BRighter%2C+Kevin%3BAnonymous&rft.aulast=Tsuno&rft.aufirst=Kyusei&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 3 N1 - PubXState - DC N1 - Last updated - 2016-09-01 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbonatites; concentration; crust; high pressure; igneous rocks; kyanite; melts; mica group; nesosilicates; orthosilicates; P-T conditions; partial melting; phengite; plate tectonics; pressure; sediments; sheet silicates; silicates; siliceous composition; subduction; trachytes; volatiles; volcanic rocks; water ER - TY - JOUR T1 - MESSENGER measurements of radioactive elements on mercury; implications for the planet's formation and evolution AN - 1789755499; 2016-043139 AB - Measurements of the surface composition of Mercury offers a window into the epoch of planet formation in the inner solar system. Mercury likely preserves a more complete record of early crustal formation than do Venus, Earth, or Mars, each of which experienced extensive and prolonged resurfacing and near-surface alteration since earliest crustal formation. The MErcury Surface, Space ENvironment, GEochemisty, and Ranging (MESSENGER) spacecraft was inserted into Mercury orbit on 18 March 2011 and carries a suite of instruments designed for remote sensing of elemental and mineralogical composition including a Gamma-Ray Spectrometer (GRS). We report measured surface abundances of radioactive elements on Mercury and their implications for hypotheses regarding the planet's formation and thermal evolution. The average surface abundances of radioactive elements over the region of Mercury measured by the GRS are 1150 + or - 220 ppm K, 220 + or - 60 ppb Th, and 90 + or - 20 ppb U. Ratios of the moderately volatile incompatible element K to the refractory incompatible elements Th and U provide insights into the volatile inventory of planetary bodies. The measured K/Th ratio for Mercury (5200 + or - 1800) is comparable to values for the other terrestrial planets. By contrast, the lunar K/Th value (360) is an order of magnitude lower, indicative of the depletion of lunar volatiles relative to Earth. Mercury's K/Th ratio, combined with the high abundance of the volatile element sulfur measured by the MESSENGER X-Ray Spectrometer, indicates that the planet has a volatile inventory similar to those of the other terrestrial planets. Hypotheses proposed to explain the unusually high ratio of metal to silicate on Mercury also carry predictions for the ratios of volatile to refractory elements that can be tested against the K, Th, and U abundances measured by MESSENGER. The abundance of K, relative to Th and U, is inconsistent with physical models for the formation of Mercury requiring extreme heating of the planet or its precursors and supports formation of the innermost planet from relatively volatile-enriched material comparable to known chondritic meteorites. Abundances of K, Th, and U indicate that heat production declined substantially in the past 4 Gy, consistent with widespread volcanism near the end of late heavy bombardment and only limited volcanic activity since. JF - American Geophysical Union Fall Meeting AU - Evans, Larry G AU - Peplowski, P N AU - Hauck, S A AU - McCoy, T J AU - Boynton, W V AU - Ebel, D S AU - Goldsten, J O AU - Hamara, D AU - Lawrence, D J AU - McNutt, R L AU - Rhodes, E A AU - Nittler, L R AU - Sprague, A L AU - Solomon, S C AU - Starr, R D AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P43E EP - 05 PB - American Geophysical Union, Washington, DC VL - 2011 KW - stony meteorites KW - isotopes KW - thermal history KW - physical models KW - meteorites KW - radioactive isotopes KW - mineral composition KW - volcanism KW - Mercury Planet KW - surface features KW - gamma-ray spectra KW - spectra KW - chondrites KW - chemical composition KW - landform evolution KW - alkali metals KW - terrestrial planets KW - planets KW - metals KW - planetary interiors KW - potassium KW - thorium KW - uranium KW - MESSENGER Mission KW - actinides KW - instruments KW - remote sensing KW - 02C:Geochemistry of rocks, soils, and sediments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789755499?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=MESSENGER+measurements+of+radioactive+elements+on+mercury%3B+implications+for+the+planet%27s+formation+and+evolution&rft.au=Evans%2C+Larry+G%3BPeplowski%2C+P+N%3BHauck%2C+S+A%3BMcCoy%2C+T+J%3BBoynton%2C+W+V%3BEbel%2C+D+S%3BGoldsten%2C+J+O%3BHamara%2C+D%3BLawrence%2C+D+J%3BMcNutt%2C+R+L%3BRhodes%2C+E+A%3BNittler%2C+L+R%3BSprague%2C+A+L%3BSolomon%2C+S+C%3BStarr%2C+R+D%3BAnonymous&rft.aulast=Evans&rft.aufirst=Larry&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/P/sessions/P43E/abstracts/P43E-05.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-08-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - actinides; alkali metals; chemical composition; chondrites; gamma-ray spectra; instruments; isotopes; landform evolution; Mercury Planet; MESSENGER Mission; metals; meteorites; mineral composition; physical models; planetary interiors; planets; potassium; radioactive isotopes; remote sensing; spectra; stony meteorites; surface features; terrestrial planets; thermal history; thorium; uranium; volcanism ER - TY - JOUR T1 - Laboratory studies of magnetic anomaly effects on electric potential distributions near the lunar surface AN - 1789754540; 2016-043148 AB - The Moon does not have a global magnetic field, unlike the Earth, rather it has strong crustal magnetic anomalies. Data from Lunar Prospector and SELENE (Kaguya) observed strong interactions between the solar wind and these localized magnetic fields. In the laboratory, a configuration of a horseshoe permanent magnet below an insulating surface is used as an analogue of lunar crustal magnetic anomalies. Plasmas are created above the surface by a hot filament discharge. Potential distributions are measured with an emissive probe and show complex spatial structures. In our experiments, electrons are magnetized with gyro-radii r smaller than the distance from the surface d (r d. Unlike negative charging on surfaces with no magnetic fields, the surface potential at the center of the magnetic dipole is found close to the plasma bulk potential. The surface charging is dominated by the cold unmagnetized ions, while the electrons are shielded away. A potential minimum is formed between the center of the surface and the bulk plasma, most likely caused by the trapped electrons between the two magnetic mirrors at the cusps. The value of the potential minimum with respect to the bulk plasma potential decreases with increasing plasma density and neutral pressure, indicating that the mirror-trapped electrons are scattered by electron-electron and electron-neutral collisions. The potential at the two cusps are found to be more negative due to the electrons following the magnetic field lines onto the surface. JF - American Geophysical Union Fall Meeting AU - Wang, Xu AU - Robertson, S H AU - Horanyi, M AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P43F EP - 06 PB - American Geophysical Union, Washington, DC VL - 2011 KW - experimental studies KW - plasma KW - Moon KW - SELENE Mission KW - solar wind KW - Lunar Prospector Program KW - magnetic anomalies KW - interplanetary space KW - interplanetary dust KW - magnetic field KW - laboratory studies KW - cosmic dust KW - surface charging KW - lunar crust KW - surface features KW - electrons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789754540?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Laboratory+studies+of+magnetic+anomaly+effects+on+electric+potential+distributions+near+the+lunar+surface&rft.au=Wang%2C+Xu%3BRobertson%2C+S+H%3BHoranyi%2C+M%3BAnonymous&rft.aulast=Wang&rft.aufirst=Xu&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/P/sessions/P43F/abstracts/P43F-06.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-08-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - cosmic dust; electrons; experimental studies; interplanetary dust; interplanetary space; laboratory studies; lunar crust; Lunar Prospector Program; magnetic anomalies; magnetic field; Moon; plasma; SELENE Mission; solar wind; surface charging; surface features ER - TY - JOUR T1 - The determination of the gravity field of Mercury from MESSENGER data AN - 1789754331; 2016-043151 AB - The MESSENGER spacecraft entered orbit about Mercury in March 2011, becoming the first spacecraft to orbit the innermost planet. The spacecraft is in a highly eccentric, near-polar orbit with an inclination near 82.5 deg., a period of nearly 12 hrs, a periapsis latitude near 60 deg.N, and a periapsis altitude that varies between 200 and 500 km. The spacecraft is tracked by the antennae of the Deep Space Network (DSN), and the X band data have been analyzed to determine spherical harmonic models of the gravity field of Mercury to degree and order 20. The a priori modeling includes the Margot (2010) orientation model for Mercury and the DE421 set of planetary ephemerides. A detailed non-conservative model has been developed to account for the radiation pressure perturbations on the spacecraft, including both the solar radiation pressure and the planetary radiation pressure. This last analysis includes a box-wing model, use of quaternions to model the spacecraft attitude, and a model of the planet's thermal emission. The data have been analyzed primarily in one-day arcs. The data coverage, which now span several Mercury sidereal days, includes direct Doppler observations below 1500 km altitude throughout the northern hemisphere to just south of the equator. In this paper, we discuss the quality of the DSN tracking data and the details of the force and measurement models used in the analyses, and we show how the solutions have been refined as additional data have been obtained. We show the stability of the solutions for the lower-degree harmonics, including C20, C22, S22, and C30. JF - American Geophysical Union Fall Meeting AU - Lemoine, Frank G AU - Mazarico, E AU - Rowlands, D D AU - Torrence, M H AU - Perry, M E AU - Smith, D E AU - Zuber, M T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P44B EP - 02 PB - American Geophysical Union, Washington, DC VL - 2011 KW - Deep Space Network KW - data processing KW - box-wing model KW - geodesy KW - satellite methods KW - harmonics KW - terrestrial planets KW - planets KW - gravity field KW - spacecraft KW - Mercury Planet KW - solar radiation KW - MESSENGER Mission KW - Margot orientation model KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789754331?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+determination+of+the+gravity+field+of+Mercury+from+MESSENGER+data&rft.au=Lemoine%2C+Frank+G%3BMazarico%2C+E%3BRowlands%2C+D+D%3BTorrence%2C+M+H%3BPerry%2C+M+E%3BSmith%2C+D+E%3BZuber%2C+M+T%3BAnonymous&rft.aulast=Lemoine&rft.aufirst=Frank&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/P/sessions/P44B/abstracts/P44B-02.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-08-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - box-wing model; data processing; Deep Space Network; geodesy; gravity field; harmonics; Margot orientation model; Mercury Planet; MESSENGER Mission; planets; remote sensing; satellite methods; solar radiation; spacecraft; terrestrial planets ER - TY - JOUR T1 - Altimetric crossover analysis; application to slowly-rotating planetary bodies AN - 1789754281; 2016-043157 AB - Neumann et al. (2001) applied crossover adjustments to improve registration and radial accuracy of single-beam altimetric profiles on Mars using the Mars Orbiter Laser Altimeter (MOLA) data. Refined orbit determination (Lemoine et al., 2001) benefitted from new gravity solutions and force modeling, but only partially employed altimetric crossover constraints, so that a final altimetry-only adjustment was warranted. Crossovers on Mars are relatively evenly distributed across all latitudes owing to the significant angle between ascending and descending ground tracks caused by a full rotation every dozen or so orbits, and the 92.9 degrees inclination of the Mars Global Surveyor spacecraft. Lunar polar orbiting satellites such as Kaguya and the Lunar Reconnaissance Orbiter (LRO), with typical periods under two hours, have much fewer crossovers at mid-latitudes because of the Moon's slower 27-day rotation period. The convergence of the orbits near the poles leads to abundant polar crossovers, which allows very precise, purely kinematic adjustment of the altimetric profiles in the polar regions. However, to exploit the limited number of crossovers in equatorial regions requires a different approach, that relies on the fact that slow-rotator ground tracks are nearly coincident for long distances, over which the topography sampled on adjacent tracks is highly correlated statistically. Thus stronger weights may be assigned to these crossovers and a semi-continuous adjustment derived. Moreover, the multi-beam crossovers provided by the Lunar Orbiter Laser Altimeter on board LRO provide even more powerful constraints for sub-parallel tracks. We demonstrate that such adjustments provide meter-level consistency between ground tracks and sub-meter radial consistency in global elevation models. JF - American Geophysical Union Fall Meeting AU - Neumann, Gregory A AU - Mazarico, E AU - Rowlands, D D AU - Lemoine, F G AU - Smith, D E AU - Zuber, M T AU - Ernst, Carolyn M AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P44B EP - 08 PB - American Geophysical Union, Washington, DC VL - 2011 KW - Moon KW - Lunar Reconnaissance Orbiter KW - orbits KW - statistical analysis KW - geophysical methods KW - techniques KW - correlation KW - altimetry KW - geodesy KW - satellite methods KW - planets KW - kinematics KW - gravity methods KW - topography KW - rotation KW - spacecraft KW - Mars Global Surveyor Program KW - MOLA KW - instruments KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789754281?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Altimetric+crossover+analysis%3B+application+to+slowly-rotating+planetary+bodies&rft.au=Neumann%2C+Gregory+A%3BMazarico%2C+E%3BRowlands%2C+D+D%3BLemoine%2C+F+G%3BSmith%2C+D+E%3BZuber%2C+M+T%3BErnst%2C+Carolyn+M%3BAnonymous&rft.aulast=Neumann&rft.aufirst=Gregory&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/P/sessions/P44B/abstracts/P44B-08.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-05-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - altimetry; correlation; geodesy; geophysical methods; gravity methods; instruments; kinematics; Lunar Reconnaissance Orbiter; Mars Global Surveyor Program; MOLA; Moon; orbits; planets; remote sensing; rotation; satellite methods; spacecraft; statistical analysis; techniques; topography ER - TY - JOUR T1 - Mercury's gravity field after the first months of MESSENGER'S orbital phase AN - 1789753994; 2016-043136 AB - After MESSENGER's three flybys of and several months in orbit about the innermost planet, a new global gravity model for Mercury has been developed from X-band tracking of the spacecraft. This model, complete to degree and order 20, has a surface resolution in the northern hemisphere of approximately 300 km. The effective resolution is 500 to 1000 km in the southern hemisphere as a result of the highly eccentric orbit of the spacecraft. In this model the dynamic range of the geoid and gravity anomalies is approximately 300 m, and 200 mGal, respectively. The extremes in both the geoid and gravity anomalies are in the northern hemisphere or near the equator, where the resolution of the field is best. This result does not preclude there being anomalies of similar magnitude in the southern hemisphere where the true resolution of our model is effectively less than degree and order 20. All the coefficients at low degree and order are stable from solution to solution as the maximum degree and order of the harmonic expansion and the small-external force parameters are adjusted. We take this stability as an indication that the degree-2 coefficients provide appropriate constraints for core and mantle structure. The value of the product of the mass and gravitational constant is very similar to that obtained from the MESSENGER flybys in 2008. JF - American Geophysical Union Fall Meeting AU - Smith, D E AU - Zuber, M T AU - Phillips, Roger J AU - Solomon, S C AU - Hauck, S A AU - Lemoine, F G AU - Mazarico, E AU - Neumann, Gregory A AU - Peale, S J AU - Margot, J AU - Johnson, C L AU - Torrence, M H AU - Perry, M E AU - Taylor, A H AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P43E EP - 02 PB - American Geophysical Union, Washington, DC VL - 2011 KW - orbits KW - global gravity model KW - geodesy KW - terrestrial planets KW - planets KW - gravity anomalies KW - gravity field KW - planetary interiors KW - Mercury Planet KW - satellites KW - MESSENGER Mission KW - geoid KW - 20:Applied geophysics KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789753994?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Mercury%27s+gravity+field+after+the+first+months+of+MESSENGER%27S+orbital+phase&rft.au=Smith%2C+D+E%3BZuber%2C+M+T%3BPhillips%2C+Roger+J%3BSolomon%2C+S+C%3BHauck%2C+S+A%3BLemoine%2C+F+G%3BMazarico%2C+E%3BNeumann%2C+Gregory+A%3BPeale%2C+S+J%3BMargot%2C+J%3BJohnson%2C+C+L%3BTorrence%2C+M+H%3BPerry%2C+M+E%3BTaylor%2C+A+H%3BAnonymous&rft.aulast=Smith&rft.aufirst=D&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/P/sessions/P43E/abstracts/P43E-02.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-08-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - geodesy; geoid; global gravity model; gravity anomalies; gravity field; Mercury Planet; MESSENGER Mission; orbits; planetary interiors; planets; satellites; terrestrial planets ER - TY - JOUR T1 - The geophysics of Mercury; shape, interior structure and thermal evolution from MESSENGER AN - 1789753828; 2016-043135 AB - The surface and interior of Mercury preserve collectively the record of processes that contributed to the planet's thermal evolution: accretion, differentiation, orbital, rotational and internal dynamics, impact cratering, tectonics and volcanism. Reconstructing Mercury's evolution requires relating internal structure and planetary dynamics to topography, chemistry and surface geology. Observations from the Mercury Laser Altimeter (MLA) and Radio Science (RS) experiments from the flyby and orbital phases of the MESSENGER mission are being analyzed in support of that goal. The MLA obtains returns from the surface at slant ranges <1500 km and has yielded a geodetically-referenced model of northern hemisphere topography. Elevations in the northern hemisphere exhibit a symmetric, unimodal distribution with short tails and a dynamic range of 9.6 km. A spherical harmonic fit of low-latitude topography confirms the ellipsoidal shape and orientation of the equator and a 0.015 degrees downward to east slope indicative of an offset between the center of mass and center of figure in the equatorial plane. This distinctive feature of the planetary shape reflects an east-west hemispheric difference in internal structure that could potentially arise from crustal thickness or crustal density variations, large-scale mantle density variations, or topography along the Mercury's core-mantle boundary. The floor of the major impact basin Caloris has been significantly modified, with the northern sections rising above the basin rim. The north polar region shows an irregular topographic depression of 2-4 km depth centered on the north pole. The feature may have migrated to the pole due to reorientation of the planet's inertia axes. The depression could represent a non-hydrostatic contribution to the planetary flattening that must be isolated and removed prior to interpreting the flattening in the context of the radial distribution of interior mass. Analysis of X-band Doppler tracking of MESSENGER has resulted in a 20th degree and order global gravity field, with high degree and order coefficients resolved only in the north. Present are mass anomalies that correlate with some impact basins that hold the promise of modeling to ascertain regional crust and upper mantle structure. JF - American Geophysical Union Fall Meeting AU - Zuber, M T AU - Phillips, Roger J AU - Smith, D E AU - Solomon, S C AU - Hauck, S A AU - Head, J W AU - Lemoine, F G AU - Neumann, Gregory A AU - Peale, S J AU - Margot, J AU - Johnson, C L AU - Oberst, J AU - Purucker, M E AU - Mazarico, E AU - Perry, M E AU - Barnouin, O S AU - McNutt, R L AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P43E EP - 01 PB - American Geophysical Union, Washington, DC VL - 2011 KW - impact features KW - Caloris Basin KW - orbits KW - mantle KW - geodesy KW - thermal history KW - core-mantle boundary KW - lower mantle KW - gravity field KW - topography KW - volcanism KW - rotation KW - Mercury Planet KW - surface features KW - tectonics KW - accretion KW - Radio Science KW - landform evolution KW - differentiation KW - correlation KW - anomalies KW - MLA KW - terrestrial planets KW - outer core KW - planets KW - planetary interiors KW - impact craters KW - core KW - Mercury Laser Altimeter KW - MESSENGER Mission KW - 18:Solid-earth geophysics KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789753828?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+geophysics+of+Mercury%3B+shape%2C+interior+structure+and+thermal+evolution+from+MESSENGER&rft.au=Han%2C+Shin+Chan%3BMazarico%2C+Erwan%3BRowlands%2C+D+D%3BLemoine%2C+F+G%3BAnonymous&rft.aulast=Han&rft.aufirst=Shin&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/P/sessions/P43E/abstracts/P43E-01.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-08-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - accretion; anomalies; Caloris Basin; core; core-mantle boundary; correlation; differentiation; geodesy; gravity field; impact craters; impact features; landform evolution; lower mantle; mantle; Mercury Laser Altimeter; Mercury Planet; MESSENGER Mission; MLA; orbits; outer core; planetary interiors; planets; Radio Science; rotation; surface features; tectonics; terrestrial planets; thermal history; topography; volcanism ER - TY - JOUR T1 - Mercury lithosphere and crustal properties from MESSENGER orbital observations AN - 1789753789; 2016-043137 AB - MESSENGER entered an eccentric, near-polar orbit about Mercury in March 2011, becoming the first spacecraft to orbit the solar system's innermost planet. As part of MESSENGER's geophysics investigation, the Mercury Laser Altimeter (MLA) is ranging to the surface of Mercury when the spacecraft slant range is less than about 1500 km, largely over the northern hemisphere. Tracking of radio signal transmissions from MESSENGER's low- and high-gain antennas is yielding detailed information on Mercury's gravity field. Regional variations in the gravity field and in topography provide information on the mechanisms of topographic compensation, including constraints on crustal thickness (h (sub c) ) and effective elastic thickness (T (sub e) ). Representation of both the topography and gravity fields with spherical harmonics allows analyses at similar resolutions. However, this approach can be problematical due to limited MLA sampling, as well as degraded gravity resolution, in the southern hemisphere. Analyses in the northern hemisphere that are largely spatially based can circumvent this problem to some extent by using aggregate solutions rather than individual spectral components. Here we report on spatially based efforts to determine h (sub c) and T (sub e) at a variety of locales in the northern hemisphere. Early results yield only upper bounds on crustal thickness but do indicate more robust conclusions about effective elastic thickness and its possible variation with load age. As T (sub e) can be used as a surrogate for interior heat flow, such results can place constraints on Mercury's thermal history. JF - American Geophysical Union Fall Meeting AU - Phillips, Roger J AU - Zuber, M T AU - Smith, D E AU - Hauck, S A AU - Lemoine, F G AU - Mazarico, E AU - Neumann, Gregory A AU - Peale, S J AU - Margot, J AU - Johnson, C L AU - Perry, M E AU - Head, J W AU - Solomon, S C AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P43E EP - 03 PB - American Geophysical Union, Washington, DC VL - 2011 KW - lithosphere KW - flexure KW - thermal history KW - terrestrial planets KW - spherical harmonic analysis KW - planets KW - gravity field KW - topography KW - heat flow KW - planetary interiors KW - Mercury Planet KW - surface features KW - thickness KW - Mercury Laser Altimeter KW - MESSENGER Mission KW - crust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789753789?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Mercury+lithosphere+and+crustal+properties+from+MESSENGER+orbital+observations&rft.au=Phillips%2C+Roger+J%3BZuber%2C+M+T%3BSmith%2C+D+E%3BHauck%2C+S+A%3BLemoine%2C+F+G%3BMazarico%2C+E%3BNeumann%2C+Gregory+A%3BPeale%2C+S+J%3BMargot%2C+J%3BJohnson%2C+C+L%3BPerry%2C+M+E%3BHead%2C+J+W%3BSolomon%2C+S+C%3BAnonymous&rft.aulast=Phillips&rft.aufirst=Roger&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/P/sessions/P43E/abstracts/P43E-03.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-08-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - crust; flexure; gravity field; heat flow; lithosphere; Mercury Laser Altimeter; Mercury Planet; MESSENGER Mission; planetary interiors; planets; spherical harmonic analysis; surface features; terrestrial planets; thermal history; thickness; topography ER - TY - JOUR T1 - Improved high-resolution lunar gravity field model from SELENE and historical tracking data AN - 1789753349; 2016-043154 AB - The Kaguya (SELENE) mission (September 2007 - June 2009) consisted of three separate satellites, which were tracked by a variety of terrestrial based tracking systems for the purpose of precision orbit determination and lunar gravity field determination. In addition to standard two-way Doppler and range tracking, Kaguya also carried out 4-way Doppler tracking between the sub-satellite Rstar and the main orbiter while the latter was over the far side of the Moon, and differential VLBI tracking between the two sub-satellites Rstar and Vstar. Kaguya data have been combined with historical tracking data of lunar orbiters (up to Lunar Prospector), and this has resulted in lunar gravity field models expressed in spherical harmonics up to a maximum resolution of degree and order 100. These models mapped the far side gravity field of the Moon for the first time, and helped improve the estimates of the lower degrees. Here, we present an improved, high-resolution lunar gravity field model, expressed in spherical harmonics up to degree and order 150. Our analysis differs in several crucial aspects from our previous models: we have now included the complete Lunar Prospector tracking data set, including data from the extended mission; we also included switching differential VLBI data instead of same-beam data only, which helps to further improve the orbit precision of both sub-satellites; and we extended the arc lengths of both Lunar Prospector (nominal mission only, from 2 days to 4 days, by virtue of having mapped the far side gravity field) and the main satellite of Kaguya (from 12 hours to arc lengths varying between 2 days and 1 week, by virtue of careful modelling of the angular momentum desaturation manoeuvres). The result is a model with smaller formal errors for the lower degrees, and an especially improved orbit prediction performance. Orbit propagation from an initial two-day data arc, at an average altitude of 50 km, results in orbit errors of 110 m after one month, whereas previous lunar gravity models of the same expansion produce orbit errors of 500 m and larger. Improvements are especially seen in the along-track component. With the far side gravity field included, we expect that this model is especially useful for the upcoming GRAIL mission. JF - American Geophysical Union Fall Meeting AU - Goossens, Sander J AU - Matsumoto, K AU - Kikuchi, F AU - Liu, Q AU - Hanada, H AU - Lemoine, F G AU - Rowlands, D D AU - Ishihara, Y AU - Noda, H AU - Namiki, N AU - Iwata, T AU - Sasaki, S AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P44B EP - 05 PB - American Geophysical Union, Washington, DC VL - 2011 KW - high-resolution methods KW - angular momentum KW - lunar gravity field KW - Moon KW - SELENE Mission KW - orbits KW - Lunar Prospector Program KW - prediction KW - GRAIL KW - geodesy KW - satellite methods KW - harmonics KW - models KW - gravity field KW - Kaguya Mission KW - very long baseline interferometry KW - remote sensing KW - 20:Applied geophysics KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789753349?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Improved+high-resolution+lunar+gravity+field+model+from+SELENE+and+historical+tracking+data&rft.au=Goossens%2C+Sander+J%3BMatsumoto%2C+K%3BKikuchi%2C+F%3BLiu%2C+Q%3BHanada%2C+H%3BLemoine%2C+F+G%3BRowlands%2C+D+D%3BIshihara%2C+Y%3BNoda%2C+H%3BNamiki%2C+N%3BIwata%2C+T%3BSasaki%2C+S%3BAnonymous&rft.aulast=Goossens&rft.aufirst=Sander&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/P/sessions/P44B/abstracts/P44B-05.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-08-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - angular momentum; geodesy; GRAIL; gravity field; harmonics; high-resolution methods; Kaguya Mission; lunar gravity field; Lunar Prospector Program; Moon; orbits; prediction; remote sensing; satellite methods; SELENE Mission; very long baseline interferometry; models ER - TY - JOUR T1 - MESSENGER searches for less abundant or weakly emitting species in Mercury's exosphere AN - 1789753330; 2016-043149 AB - Mercury's exosphere is composed of material that originates at the planet's surface, whether that material is native or delivered by the solar wind and micrometeoroids. Many exospheric species have been detected by remote sensing, including H and He by Mariner 10, Na, K, and Ca by ground-based observations, and H, Na, Ca, Mg, and Ca+ by the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft. Other exospheric species, including Fe, Al, Si, O, S, Mn, Cl, Ti, OH, and their ions, are expected to be present on the basis of MESSENGER surface measurements and models of Mercury's surface chemistry. Here we report on searches for these species made with the Ultraviolet and Visible Spectrometer (UVVS) channel of the Mercury Atmospheric and Surface Composition Spectrometer (MASCS). No obvious signatures of the listed species have yet been observed in Mercury's exosphere by the UVVS as of this writing. It is possible that detections are elusive because the optimum regions of the exosphere have not been sampled. The Sun-avoidance constraints on MESSENGER place tight limits on instrument boresight directions, and some regions are probed infrequently. If there are strong spatial gradients in the distribution of weakly emitting species, a high-resolution sampling of specific regions may be required to detect them. Summing spectra over time will also aid in the ability to detect weaker emission. Observations to date nonetheless permit strong upper limits to be placed on the abundances of many undetected species, in some cases as functions of time and space. As those limits are lowered with time, the absence of detections can provide insight into surface composition and the potential source mechanisms of exospheric material. JF - American Geophysical Union Fall Meeting AU - Vervack, Ron J AU - McClintock, W E AU - Killen, R M AU - Sprague, A L AU - Burger, M AU - Merkel, A W AU - Sarantos, M AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P44A EP - 02 PB - American Geophysical Union, Washington, DC VL - 2011 KW - Mercury Atmospheric and Surface Composition Spectrometer KW - MASCS KW - solar wind KW - Mariner 10 KW - atmosphere KW - exosphere KW - terrestrial planets KW - planets KW - major elements KW - Mercury Planet KW - Mariner Program KW - surface features KW - ultraviolet spectra KW - spectra KW - MESSENGER Mission KW - chemical composition KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789753330?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=MESSENGER+searches+for+less+abundant+or+weakly+emitting+species+in+Mercury%27s+exosphere&rft.au=Vervack%2C+Ron+J%3BMcClintock%2C+W+E%3BKillen%2C+R+M%3BSprague%2C+A+L%3BBurger%2C+M%3BMerkel%2C+A+W%3BSarantos%2C+M%3BAnonymous&rft.aulast=Vervack&rft.aufirst=Ron&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/P/sessions/P44A/abstracts/P44A-02.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-08-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - atmosphere; chemical composition; exosphere; major elements; Mariner 10; Mariner Program; MASCS; Mercury Atmospheric and Surface Composition Spectrometer; Mercury Planet; MESSENGER Mission; planets; remote sensing; solar wind; spectra; surface features; terrestrial planets; ultraviolet spectra ER - TY - JOUR T1 - Distribution of surface slopes and roughness in Mercury's Northern Hemisphere AN - 1773800558; 2016-023710 AB - Since the MErcury Surface, Space ENvironment, GEochemistry, and Ranging spacecraft (MESSENGER) was inserted into orbit about Mercury in March 2011, the Mercury Laser Altimeter (MLA) has been measuring the topography of the planet's northern hemisphere with high accuracy. MLA elevation data can be used to characterize slopes and roughness of the surface over a range of baselines. In our study the median absolute value of differential slope at a given baseline is adopted as a measure of surface roughness. Baseline lengths from 0.7 to 41.6 km are used, and the roughness is determined at scales of 0.7, 2.8, and 11.2 km to produce roughness maps of Mercury's northern hemisphere. From the resulting maps it is possible to distinguish clearly at least two broad geologic units on the basis of roughness characteristics: the northern smooth plains and heavily cratered terrain. The roughness values of the two terrains are compared at all baselines as an aid in the interpretation of the geological processes that formed and modified them. Over the range of baseline lengths considered, the northern smooth plains have significantly lower roughness( at least 0.2 degree less than for heavily cratered terrain). The observed lower roughnessat the shortest baseline is consistent with a volcanic origin for the northern plains, which have been interpreted on the basis of geological and elemental remote sensing observations as products of flood lavas of high temperature and low viscosity. The lower roughness values at intermediate baselines reflect the relatively younger age and lower overall density of impact craters on the plains unit compared with heavily cratered terrain. JF - American Geophysical Union Fall Meeting AU - Yang, D AU - Neumann, Gregory A AU - Smith, D E AU - Zuber, M T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P41A EP - 1577 PB - American Geophysical Union, Washington, DC VL - 2011 KW - surface properties KW - elevation KW - roughness KW - temperature KW - terrestrial planets KW - planets KW - terrains KW - craters KW - viscosity KW - lava KW - Mercury Planet KW - MESSENGER Mission KW - accuracy KW - high temperature KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773800558?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Distribution+of+surface+slopes+and+roughness+in+Mercury%27s+Northern+Hemisphere&rft.au=Yang%2C+D%3BNeumann%2C+Gregory+A%3BSmith%2C+D+E%3BZuber%2C+M+T%3BAnonymous&rft.aulast=Yang&rft.aufirst=D&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-17 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - accuracy; craters; elevation; high temperature; lava; Mercury Planet; MESSENGER Mission; planets; remote sensing; roughness; surface properties; temperature; terrains; terrestrial planets; viscosity ER - TY - JOUR T1 - Ratios of impact crater depth to diameter in Mercury's north polar region from MESSENGER laser altimeter observations AN - 1773800542; 2016-023711 AB - Earth-based radar images dating back two decades show that the floors of polar craters on Mercury host radar-bright deposits having radar characteristics best matched by water ice. A 2005 study of the depths of north polar craters determined with photoclinometric techniques applied to Mariner 10 images by Vilas and others yielded the conclusion that the mean ratio of crater depth d to rim-crest diameter D for craters hosting polar deposits is two-thirds that of the mean d/D of a comparable population of neighboring craters lacking such deposits. Here we use altimetric profiles and topographic maps obtained by the Mercury Laser Altimeter (MLA) on the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft, now in orbit about Mercury, to repeat this experiment. From MLA profiles we have created a regional digital elevation map (DEM) of high northern latitudes southward of 85 degrees N. The depth and diameter of 14 craters hosting polar deposits and ranging in diameter from 3.0 to 50.9 km, and 24 neighboring craters that lack such deposits between 75.0 degrees N and 83.1 degrees N, have been determined from this data set. For each crater, 50 radial profiles that extend from the crater center past its rim have been extracted from the DEM to allow for a robust assessment of depth and diameter. The original altimetry tracks that pass near the center of each crater have also been examined to validate the measurements from the elevation maps. Overall, both methods yield similar values for depth and diameter: d/D values range from 0.052 to 0.116 with a mean of 0.080 and a standard deviation of 0.018 for the population of craters hosting polar deposits, and 0.042 to 0.102 with a mean of 0.066 and a standard deviation of 0.014 for the neighboring 24 craters that lack such deposits. As the MLA continues to collect data, measurements of additional craters are underway, as well as an error analysis of the measurements and statistical tests to evaluate the similarities and differences of the two crater populations. JF - American Geophysical Union Fall Meeting AU - Talpe, M AU - Zuber, M T AU - Neumann, Gregory A AU - Solomon, S C AU - Vilas, F AU - Mazarico, Erwan AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P41A EP - 1578 PB - American Geophysical Union, Washington, DC VL - 2011 KW - terrestrial planets KW - planets KW - laser methods KW - impact features KW - Mercury Planet KW - impact craters KW - altimetry KW - MESSENGER Mission KW - observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773800542?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Ratios+of+impact+crater+depth+to+diameter+in+Mercury%27s+north+polar+region+from+MESSENGER+laser+altimeter+observations&rft.au=Talpe%2C+M%3BZuber%2C+M+T%3BNeumann%2C+Gregory+A%3BSolomon%2C+S+C%3BVilas%2C+F%3BMazarico%2C+Erwan%3BAnonymous&rft.aulast=Talpe&rft.aufirst=M&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-17 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - altimetry; impact craters; impact features; laser methods; Mercury Planet; MESSENGER Mission; observations; planets; terrestrial planets ER - TY - JOUR T1 - Spectral properties of natural and synthetic allophanes, imogolites, hydrated silica and phyllosilicates and applications to Mars AN - 1773800505; 2016-023697 AB - We have measured reflectance and emissivity spectra of a number of natural and synthetic poorly ordered materials for comparison with spectra of the martian surface. Here we focused on the near-IR spectra of these materials, the shape and character of the bands near 1.4, 1.9 and 2.2 mu m and how these features change with Al/Si/Fe composition and relative humidity (RH) conditions. Spectra acquired under low RH conditions include the following general features: allophane exhibits a doublet at 1.38/1.41, and bands near 1.92 and 2.190-2.199 mu m; imogolite has a doublet at 1.37/1.39 and bands near 1.92-1.93 and 2.188-2.197 mu m; opal exhibits a doublet at 1.37/1.41 mu m and bands near 1.91 and 2.20-2.26 mu m. Observed variations depended on the chemistry and character of the sample, e.g., the OH bands for Fe-bearing allophanes shifted toward longer wavelengths and additional bands for Fe-bearing opal were observed at 2.26 and 2.30 mu m. The spectra of allophane acquired under ambient conditions barely showed the approximately 1.4 mu m bands that are masked by a much larger approximately 1.45 mu m H (sub 2) O band and the approximately 2.2 mu m band broadened into a shoulder, likely due to H-bonding. Variations in H (sub 2) O content cause structural changes in some phyllosilicates [1]. RH-controlled X-ray diffraction experiments indicated different trends: montmorillonite exhibited increasing low-angle intensity at elevated RH, no changes in intensity were observed for opal, and both allophane and imogolite exhibited decreasing low-angle intensity with increasing RH. Poorly ordered materials such as allophane and imogolite exhibit spectral features near 2.2 mu m similar to those of Al-phyllosilicates and hydrated silica. Allophane and imogolite frequently form as volcanic materials alter and can be viewed as protoclays. We propose that such poorly ordered materials may be present on Mars in regions where phyllosilicates have been detected. [1] Bish, DL, etal.(2003) Icarus 164, 96-103. JF - American Geophysical Union Fall Meeting AU - Bishop, J L AU - Rampe, Elizabeth B AU - Baker, L L AU - Bish, D L AU - Abidin, Z AU - Henmi, T AU - Hillier, Stephen AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P34B EP - 03 PB - American Geophysical Union, Washington, DC VL - 2011 KW - silicates KW - near-infrared spectra KW - X-ray diffraction data KW - natural materials KW - Mars KW - properties KW - bonding KW - emissivity KW - variations KW - order-disorder KW - clay minerals KW - terrestrial planets KW - planets KW - allophane KW - silica KW - sheet silicates KW - imogolite KW - applications KW - spectra KW - reflectance KW - synthetic materials KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773800505?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Spectral+properties+of+natural+and+synthetic+allophanes%2C+imogolites%2C+hydrated+silica+and+phyllosilicates+and+applications+to+Mars&rft.au=Bishop%2C+J+L%3BRampe%2C+Elizabeth+B%3BBaker%2C+L+L%3BBish%2C+D+L%3BAbidin%2C+Z%3BHenmi%2C+T%3BHillier%2C+Stephen%3BAnonymous&rft.aulast=Bishop&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 1 N1 - PubXState - DC N1 - Last updated - 2016-03-17 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - allophane; applications; bonding; clay minerals; emissivity; imogolite; Mars; natural materials; near-infrared spectra; order-disorder; planets; properties; reflectance; sheet silicates; silica; silicates; spectra; synthetic materials; terrestrial planets; variations; X-ray diffraction data ER - TY - JOUR T1 - MESSENGER observations of internal and external magnetic fields at Mercury AN - 1773800491; 2016-023704 AB - Orbital observations with the Magnetometer (MAG) on the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft allow global-scale modeling of Mercury's internal and external magnetic fields. We use a paraboloid model with a cross-tail current sheet to quantify the external magnetic fields and examine possible origins for any residual long-wavelength signals. Observations inside the magnetosphere extend from approximately 60 degrees S to 86 degrees N; those below 1000 km altitude are confined to the northern hemisphere, with global coverage in body-fixed longitude and in local time. We use MAG data to constrain the magnetopause sub-solar standoff distance, the dipole tilt and offset along the rotation axis, the tail field, and the distance to the inner edge of the tail current sheet. Additional parameters, including the dipole moment, are constrained by the goodness of fit of the model to the MAG data. Inbound and outbound magnetopause crossings are identified on each magnetosphere pass. The mean magnetopause shape for the first 120 days in orbit is modeled by a paraboloid of revolution having a subsolar standoff distance of 1.4 R (sub M) (where R (sub M) is Mercury's radius). Observations of Mercury's magnetic equator indicate a southward-directed dipole, offset northward along the rotation axis from the planetary center by 484 km, with a tilt of less than 2.5 degrees . These observations constrain the dipole moment to be 195 + or - 10 nT-R (sub M) (super 3) . The paraboloid model successfully matches the first-order global signature of the field, with residual amplitudes typically less than 50 nT. Residuals contain signatures from several different sources: (1) variations in the long-wavelength field that are slow relative to the magnetospheric transit time and which correspond to differences in the baseline magnetospheric currents; (2) multipolar contributions to the internal field of either core or crustal origin; (3) plasma and current systems within the magnetosphere that are not captured in the paraboloid model; and (4) temporal variability of magnetospheric currents on time scales short compared with magnetospheric transits. We analyze the residuals to identify contributions from the first two processes, and we explore techniques to distinguish short-wavelength signatures of the last three processes. JF - American Geophysical Union Fall Meeting AU - Johnson, C L AU - Anderson, Brian J AU - Purucker, Michael E AU - Alexeev (Alexeyev), I I AU - Al Asad, M AU - Korth, Haje AU - Phillips, Roger J AU - Slavin, J A AU - Solomon, S C AU - Winslow, R M AU - Zuber, M T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P41A EP - 1570 PB - American Geophysical Union, Washington, DC VL - 2011 KW - processes KW - magnetosphere KW - elastic waves KW - magnetometers KW - magnetopause KW - magnetic field KW - variations KW - observations KW - wavelength KW - terrestrial planets KW - models KW - planets KW - quantitative analysis KW - Mercury Planet KW - MESSENGER Mission KW - dipole moment KW - amplitude KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773800491?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=MESSENGER+observations+of+internal+and+external+magnetic+fields+at+Mercury&rft.au=Johnson%2C+C+L%3BAnderson%2C+Brian+J%3BPurucker%2C+Michael+E%3BAlexeev+%28Alexeyev%29%2C+I+I%3BAl+Asad%2C+M%3BKorth%2C+Haje%3BPhillips%2C+Roger+J%3BSlavin%2C+J+A%3BSolomon%2C+S+C%3BWinslow%2C+R+M%3BZuber%2C+M+T%3BAnonymous&rft.aulast=Johnson&rft.aufirst=C&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-17 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - amplitude; dipole moment; elastic waves; magnetic field; magnetometers; magnetopause; magnetosphere; Mercury Planet; MESSENGER Mission; models; observations; planets; processes; quantitative analysis; terrestrial planets; variations; wavelength ER - TY - JOUR T1 - Lava erosion on Mercury; model results using new observations from MESSENGER AN - 1773800485; 2016-023722 AB - Volcanism has been conclusively identified on the surface of Mercury from images and color data collected by the Mercury Dual Imaging System (MDIS) instrument aboard the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft. Most of the volcanic deposits on Mercury are similar in morphology to lunar mare flood basalt deposits and are found on Mercury in smooth plains regions such as in the extensive northern smooth plains. Adjacent to the northern smooth plains is an unusual assemblage of 5-10-km-diameter pits, teardrop-shaped hills, rough plains, and distal lobate-margined smooth plains; these features are interpreted to represent source vents, lava sculpting of underlying terrain, and distal emplacement of extensive flow lobes. These features are consistent with eruption of high-temperature, low-viscosity komatiite-like flood lavas that erode and sculpt the underlying terrain during flow on Mercury. Evidence of this process is observed extensively on other terrestrial planets where eroded channels are often seen in association with source depressions. Here we analyze Mercury Laser Altimeter (MLA) data and MDIS images to document morphologic and morphometric constraints on the amount of erosion that occurred and the amount of lava that was emplaced during the formation of this scoured surface. These constraints are used as inputs into models of mechanical and thermal erosion to determine which erosion regime, mechanical or thermal, was dominant during the formation of this terrain, as well as to determine plausible erosion rates and eruption durations required to form the observed scoured terrain. We compare processes of volcanism and thermal/mechanical erosion on Mercury with similar processes on Earth, the Moon, Mars and Venus. JF - American Geophysical Union Fall Meeting AU - Hurwitz, Debra M AU - Head, James W AU - Zuber, M T AU - Smith, D E AU - Neumann, Gregory A AU - Strom, R G AU - Fassett, Caleb I AU - Denevi, Brett W AU - Blewett, David T AU - Ernst, Carolyn M AU - Watters, T R AU - Solomon, S C AU - Byrne, P K AU - Klimczak, C AU - Murchie, Scott L AU - Prockter, Louise M AU - Chabot, Nancy L AU - Gillis-Davis, J J AU - Whitten, Jennifer AU - Goudge, Tim A AU - Baker, David M AU - Ostrach, Lillian R AU - Xiao, Z AU - Merline, W J AU - Dickson, J L AU - Oberst, Juergen AU - Nittler, L R AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P41A EP - 1591 PB - American Geophysical Union, Washington, DC VL - 2011 KW - processes KW - laser methods KW - Moon KW - erosion KW - Venus KW - Mars KW - altimetry KW - erosion rates KW - observations KW - terrestrial planets KW - models KW - planets KW - lava KW - Mercury Planet KW - interplanetary comparison KW - plains KW - MESSENGER Mission KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773800485?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Lava+erosion+on+Mercury%3B+model+results+using+new+observations+from+MESSENGER&rft.au=Hurwitz%2C+Debra+M%3BHead%2C+James+W%3BZuber%2C+M+T%3BSmith%2C+D+E%3BNeumann%2C+Gregory+A%3BStrom%2C+R+G%3BFassett%2C+Caleb+I%3BDenevi%2C+Brett+W%3BBlewett%2C+David+T%3BErnst%2C+Carolyn+M%3BWatters%2C+T+R%3BSolomon%2C+S+C%3BByrne%2C+P+K%3BKlimczak%2C+C%3BMurchie%2C+Scott+L%3BProckter%2C+Louise+M%3BChabot%2C+Nancy+L%3BGillis-Davis%2C+J+J%3BWhitten%2C+Jennifer%3BGoudge%2C+Tim+A%3BBaker%2C+David+M%3BOstrach%2C+Lillian+R%3BXiao%2C+Z%3BMerline%2C+W+J%3BDickson%2C+J+L%3BOberst%2C+Juergen%3BNittler%2C+L+R%3BAnonymous&rft.aulast=Hurwitz&rft.aufirst=Debra&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-17 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - altimetry; erosion; erosion rates; instruments; interplanetary comparison; laser methods; lava; Mars; Mercury Planet; MESSENGER Mission; models; Moon; observations; plains; planets; processes; terrestrial planets; Venus ER - TY - JOUR T1 - A search for a crustal magnetization signature of variations in insolation at Mercury AN - 1773800460; 2016-023705 AB - Spatial variations in insolation on Mercury could give rise to long-wavelength variations in the depth to the Curie isotherm for a given magnetic mineral. Global-scale magnetic fields can result from remanent crustal magnetization in such an environment. Magnetic field data from previous flybys and from the first MESSENGER orbits around Mercury indicate that most of the signal can be explained by a dipole field of core origin and an external field associated with magnetospheric currents, rather than by a long-wavelength crustal field. Here we examine residual fields that remain after the removal of the main core and external fields and we test for signatures of remanent crustal magnetization tied to variations of insolation with latitude and longitude. Large-scale longitudinal variations in near-surface temperatures arise from the combination of Mercury's high eccentricity with its 3:2 spin-orbit resonance while invariant latitudinal temperature variations result from a stable near-zero obliquity. We calculate near-surface thermal boundary conditions for models of Mercury's crust. These boundary conditions, coupled with an assumed vertical thermal gradient, predict large-scale variations in the thickness of the layer capable of carrying a magnetic signature, either induced or remanent. The presence of a substantial dipole term led to the suggestion that this process might explain Mercury's small global magnetic field. We have previously shown, on the basis of flyby data, that Mercury's global magnetic field is inconsistent with such a mechanism. We confirm this earlier result with magnetic field observations collected through the first 120 days of MESSENGER's orbital phase, which now covers Mercury's entire northern hemisphere. However, we find residuals with respect to a model that describes the large-scale internal and external magnetic fields associated with Mercury, and those residuals indicate the presence of systematic, unmodeled magnetic fields of internal origin. The character of these residuals is stable with respect to moderate changes in model parameters. Repeated coverage of the northern hemisphere at all local times will be achieved after six months of orbital operations and will test the robustness of the solutions. JF - American Geophysical Union Fall Meeting AU - Purucker, Michael E AU - Johnson, C L AU - Winslow, R M AU - Zuber, M T AU - Solomon, S C AU - Anderson, Brian J AU - Korth, Haje AU - Paige, D AU - Slavin, J A AU - Alexeev, I I AU - Phillips, Roger J AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P41A EP - 1571 PB - American Geophysical Union, Washington, DC VL - 2011 KW - processes KW - magnetosphere KW - mechanism KW - magnetization KW - paleomagnetism KW - magnetic field KW - boundary conditions KW - variations KW - terrestrial planets KW - models KW - planets KW - spatial variations KW - magnetic minerals KW - isotherms KW - Mercury Planet KW - insolation KW - MESSENGER Mission KW - crust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773800460?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=A+search+for+a+crustal+magnetization+signature+of+variations+in+insolation+at+Mercury&rft.au=Purucker%2C+Michael+E%3BJohnson%2C+C+L%3BWinslow%2C+R+M%3BZuber%2C+M+T%3BSolomon%2C+S+C%3BAnderson%2C+Brian+J%3BKorth%2C+Haje%3BPaige%2C+D%3BSlavin%2C+J+A%3BAlexeev%2C+I+I%3BPhillips%2C+Roger+J%3BAnonymous&rft.aulast=Purucker&rft.aufirst=Michael&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-17 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - boundary conditions; crust; insolation; isotherms; magnetic field; magnetic minerals; magnetization; magnetosphere; mechanism; Mercury Planet; MESSENGER Mission; models; paleomagnetism; planets; processes; spatial variations; terrestrial planets; variations ER - TY - JOUR T1 - The chronology of basin formation and subsequent volcanism on the Moon and Mercury AN - 1773800413; 2016-023679 AB - The formation of large impact basins played a critical role in the early evolution of the surfaces of Mercury and the Moon. New data from the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) and Lunar Reconnaissance Orbiter (LRO) missions have enabled a re-evaluation of the sequence and chronology of large impact basin formation and modification on both planets, as well as global characterization of the crater density on the surface of each planetary body for craters of diameter D > or = 20 km. These observations allow us to understand how basins are superposed by volcanic plains on each planet, and the similarities and differences in volcanic resurfacing that these crater densities imply. From this record, it appears that even the most densely cratered regions on Mercury have fewer craters per unit area between 20 km and approximately 100 km in diameter than the Moon, a difference that reflects widespread volcanic resurfacing on Mercury early in its history. For craters and basins with D > or = 100 km, the density of superposed craters on Mercury in a given size range is similar to that of the Moon. Because such large craters are less easily removed by volcanic resurfacing, we interpret this similarity to be the result of impact saturation effects on both bodies. However, on Mercury, it appears that all large basins (D > 500 km) experienced substantial volcanic modification after their formation, in contrast with the Moon, where some basins remain relatively unfilled. Further observations of the interactions of basins and volcanism on each body will enable a deeper understanding of their planetary-scale geophysical and geological evolution. JF - American Geophysical Union Fall Meeting AU - Fassett, Caleb I AU - Dickson, J L AU - Head, James W AU - Hurwitz, Debra M AU - Kadish, Seth J AU - Mazarico, Erwan AU - Neumann, Gregory A AU - Smith, D E AU - Solomon, S C AU - Strom, R G AU - Whitten, Jennifer AU - Zuber, M T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P33G EP - 03 PB - American Geophysical Union, Washington, DC VL - 2011 KW - impact features KW - Moon KW - Lunar Reconnaissance Orbiter KW - resurfacing KW - characterization KW - terrestrial planets KW - planets KW - craters KW - volcanism KW - Mercury Planet KW - basins KW - MESSENGER Mission KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773800413?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+plasma+wake+downstream+of+lunar+topographic+obstacles%3B+preliminary+results+from+2D+particle+simulations&rft.au=Zimmerman%2C+Michael+I%3BFarrell%2C+William+M%3BStubbs%2C+T+J%3BHalekas%2C+J+S%3BAnonymous&rft.aulast=Zimmerman&rft.aufirst=Michael&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-17 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - basins; characterization; craters; impact features; Lunar Reconnaissance Orbiter; Mercury Planet; MESSENGER Mission; Moon; planets; resurfacing; terrestrial planets; volcanism ER - TY - JOUR T1 - Internal structure of Mercury; constraints from MESSENGER AN - 1773800280; 2016-023713 AB - Following a six-and-a-half year cruise phase that included three flybys of Mercury, MESSENGER became the first spacecraft to orbit the planet closest to the Sun on March 18, 2011. One of the primary goals of the MESSENGER mission is to constrain the state and structure of Mercury's core. Mercury has a high bulk density that implies a larger mass fraction of iron in the planet's interior than in the other terrestrial planets. Tracking of radio-signal transmissions from MESSENGER's low- and high-gain antennas is yielding new information on the gravity field of Mercury. Importantly, MESSENGER is improving estimates of the second-degree spherical harmonic gravity-field coefficients C (sub 20) and C (sub 22) . These coefficients, along with recent Earth-based observations of Mercury's orbital and spin dynamics, permit the determination of the planet's normalized polar moment of inertia (C/MR (super 2) ), where M and R are Mercury's mass and radius, and the ratio of the polar moment of inertia of the mantle and crust to the planet's polar moment of inertia (C (sub m) /C). The C/MR (super 2) and C (sub m) /C parameters provide complementary measures of the distribution of mass within the planet. We model the planet's interior as a four-layer structure consisting of a compressible solid inner core and liquid outer core and uniform-density mantle and crustal layers. With a Monte Carlo approach to account for parameter ranges, we calculate a large suite of models of Mercury's interior consistent with the planet's mean radius, bulk density, and a wide range of material and internal structural values. For each candidate structure we estimate the statistical likelihood that it is consistent with the observed moment of inertia parameters and their uncertainties to construct an appropriate sample of models consistent with Mercury's physical characteristics. The radius of Mercury's core, which constrains the mass fraction of metal and ultimately the bulk composition, is the most robustly determined parameter in this analysis. JF - American Geophysical Union Fall Meeting AU - Hauck, S A AU - Solomon, S C AU - Lemoine, Frank G AU - Margot, J AU - Mazarico, Erwan AU - Peale, S J AU - Perry, Mark E AU - Phillips, Roger J AU - Smith, D E AU - Zuber, M T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P41A EP - 1580 PB - American Geophysical Union, Washington, DC VL - 2011 KW - terrestrial planets KW - mass KW - planets KW - gravity field KW - bulk density KW - Mercury Planet KW - MESSENGER Mission KW - observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773800280?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Internal+structure+of+Mercury%3B+constraints+from+MESSENGER&rft.au=Hauck%2C+S+A%3BSolomon%2C+S+C%3BLemoine%2C+Frank+G%3BMargot%2C+J%3BMazarico%2C+Erwan%3BPeale%2C+S+J%3BPerry%2C+Mark+E%3BPhillips%2C+Roger+J%3BSmith%2C+D+E%3BZuber%2C+M+T%3BAnonymous&rft.aulast=Hauck&rft.aufirst=S&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-17 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - bulk density; gravity field; mass; Mercury Planet; MESSENGER Mission; observations; planets; terrestrial planets ER - TY - JOUR T1 - Modeling of Mercury tides for recovery of gravity field and interior properties AN - 1773800267; 2016-023707 AB - The radio science experiment on the MESSENGER mission allows the determination of the gravitational field of Mercury. In order to secure the best possible gravity-field recovery, it is important to model all the forces acting on the spacecraft. Here we study the perturbations induced on the spacecraft by the tides raised on Mercury by the Sun. The manner by which the tides affect the orbit of MESSENGER depends on the response of the planet to the tide-raising potential. This response is directly connected to the interior properties of Mercury, and its study can help improve our understanding of the physical and chemical properties of the planet. The standard approach of modeling the strongest tidal effect on the gravitational field is by introducing a time-varying component in the degree-two harmonic coefficients of the gravity field. The amplitude of these variations depends on known quantities (mass of the Sun and Mercury, radius of Mercury and its position and relative orientation with respect to the Sun) and on the Love number k (sub 2) . The value of this parameter is sensitive (among other things) to the state of the core and to the rigidity of the mantle (which in turn depends on its chemical composition). An accurate value of k2 determined from orbit perturbations can be compared to values obtained with forward modeling of the interior of Mercury. The orbital geometry and physical environment of MESSENGER make the identification of the tidal perturbation difficult. Nevertheless, recent work has shown that in the case of Mars, careful study of the effect of tides on the spacecraft trajectory can help identify which orbital and observational geometries exhibit stronger tidal signatures and are apt to provide the best possible determination of k (sub 2) . Our long-term goal is to evaluate k (sub 2) for a suite of interior models and to evaluate the sensitivity of k (sub 2) to key interior properties. We will describe the orbital geometry and the tidal perturbations acting on the spacecraft trajectory with both numerical and analytical approaches, and we will report on the status of the interior modeling efforts. JF - American Geophysical Union Fall Meeting AU - Padovan, Sebastiano AU - Margot, J AU - Hauck, S A AU - Lemoine, Frank G AU - Mazarico, Erwan AU - Peale, S J AU - Solomon, S C AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P41A EP - 1573 PB - American Geophysical Union, Washington, DC VL - 2011 KW - orbits KW - numerical analysis KW - properties KW - variations KW - geometry KW - terrestrial planets KW - models KW - planets KW - physical properties KW - gravity field KW - planetary interiors KW - Mercury Planet KW - chemical properties KW - MESSENGER Mission KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773800267?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Modeling+of+Mercury+tides+for+recovery+of+gravity+field+and+interior+properties&rft.au=Padovan%2C+Sebastiano%3BMargot%2C+J%3BHauck%2C+S+A%3BLemoine%2C+Frank+G%3BMazarico%2C+Erwan%3BPeale%2C+S+J%3BSolomon%2C+S+C%3BAnonymous&rft.aulast=Padovan&rft.aufirst=Sebastiano&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-17 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - chemical properties; geometry; gravity field; Mercury Planet; MESSENGER Mission; models; numerical analysis; orbits; physical properties; planetary interiors; planets; properties; terrestrial planets; variations ER - TY - JOUR T1 - Performance assessment of the Mercury laser altimeter on MESSENGER from Mercury orbit AN - 1773800241; 2016-023708 AB - The Mercury Laser Altimeter (MLA) is one of seven instruments on the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft, a mission in NASA's Discovery Program. MESSENGER was launched on August 3, 2004, and entered into orbit about Mercury on March 18, 2011. MLA started to collect science measurements on March 29, 2011. As of June 30, 2011, MLA had accumulated about 3 million laser ranging measurements to the Mercury surface through one Mercury year, i.e., one complete cycle of the spacecraft thermal environment. The average MLA laser output-pulse energy remained steady despite the harsh thermal environment, in which the laser bench temperature changed by as much as 15 degrees C over a 35-min operating period. The laser beam-collimating telescope experienced a 30 degrees C temperature swing over the same period, and the thermal cycling repeated every 12 hours. Nonetheless, MLA receiver optics appeared to be aligned and in focus throughout these temperature excursions. The maximum ranging distance of MLA was 1500 km at near-zero laser-beam incidence angle (and emission angle) and 600 km at 60 degrees incidence angle. The MLA instrument performance in Mercury orbit has been consistent with the performance demonstrated during MESSENGER's Mercury flybys in January and October 2008 and during pre-launch testing. In addition to range measurements, MLA data are being used to estimate the surface reflectance of Mercury at 1064 nm wavelength, including regions of permanent shadow on the floors of polar craters. MLA also provides a measurement of the surface reflectance of sunlight at 1064 nm wavelength by its noise counters, for which output is a monotonic function of the background light JF - American Geophysical Union Fall Meeting AU - Sun, Xiaoli AU - Cavanaugh, John F AU - Neumann, Gregory A AU - Mazarico, Erwan AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P41A EP - 1574 PB - American Geophysical Union, Washington, DC VL - 2011 KW - terrestrial planets KW - planets KW - laser methods KW - craters KW - orbits KW - Mercury Planet KW - laser ranging KW - MESSENGER Mission KW - altimeters KW - temperature KW - measurement KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773800241?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Performance+assessment+of+the+Mercury+laser+altimeter+on+MESSENGER+from+Mercury+orbit&rft.au=Sun%2C+Xiaoli%3BCavanaugh%2C+John+F%3BNeumann%2C+Gregory+A%3BMazarico%2C+Erwan%3BAnonymous&rft.aulast=Sun&rft.aufirst=Xiaoli&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-17 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - altimeters; craters; laser methods; laser ranging; measurement; Mercury Planet; MESSENGER Mission; orbits; planets; temperature; terrestrial planets ER - TY - JOUR T1 - Phyllosilicate analysis capabilities of the CheMin mineralogical instrument on the Mars Science Laboratory (MSL '11) Curiosity Rover AN - 1773800134; 2016-023703 AB - The CheMin mineralogical instrument on the MSL '11 Curiosity rover will return quantitative X-ray diffraction data (XRD) from scooped soil samples and drilled rock powders collected from the Mars surface. Samples of 45-65 mm (super 3) from material sieved to 4X MDL (12%). The resolution of the diffraction patterns is 0.30 degrees 2theta , and the angular measurement range is 4-55 degrees 2theta . With this performance, CheMin can identify and distinguish a number of clay minerals. For example, discrimination between 1:1 phyllosilicates (such as the kaolin minerals), with repeat distances of approximately 7Aa, and smectites (e.g., montmorillonite, nontronite, saponite), with repeat distances from 10-15Aa, is straightforward. However, it is important to note that the variety of treatments used in terrestrial laboratories to aid in discrimination of clay minerals will not be accessible on Mars (e.g., saturation with ethylene glycol vapor, heat treatments). Although these treatments will not be available on Mars, dehydration within the CheMin instrument could be used to advantage in discriminating between phyllosilicate minerals that exhibit different dehydration behavior, such as chlorite vs. smectite. In addition, it should be possible to identify the hydrated kaolin mineral, halloysite. The lowest-angle diffraction peak from 10.1Aa hydrated halloysite occurs at approximately 10.2 degrees 2theta with Co radiation and is easily detectable; the mineral may readily dehydrate to approximately 7Aa, making its identification possible based on this transition. Examples will be shown of clay mineral analysis using CheMin IV, a prototype of the CheMin flight instrument. JF - American Geophysical Union Fall Meeting AU - Blake, D F AU - Bish, D L AU - Vaniman, D T AU - Chipera, S AU - Bristow, T F AU - Sarrazin, P AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P34C EP - 05 PB - American Geophysical Union, Washington, DC VL - 2011 KW - soils KW - silicates KW - X-ray diffraction data KW - structural analysis KW - Mars KW - samples KW - preferred orientation KW - order-disorder KW - clay minerals KW - terrestrial planets KW - planets KW - quantitative analysis KW - identification KW - Curiosity Rover KW - Mars Science Laboratory KW - CheMin KW - sheet silicates KW - halloysite KW - rocks KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773800134?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Phyllosilicate+analysis+capabilities+of+the+CheMin+mineralogical+instrument+on+the+Mars+Science+Laboratory+%28MSL+%2711%29+Curiosity+Rover&rft.au=Blake%2C+D+F%3BBish%2C+D+L%3BVaniman%2C+D+T%3BChipera%2C+S%3BBristow%2C+T+F%3BSarrazin%2C+P%3BAnonymous&rft.aulast=Blake&rft.aufirst=D&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-17 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - CheMin; clay minerals; Curiosity Rover; halloysite; identification; instruments; Mars; Mars Science Laboratory; order-disorder; planets; preferred orientation; quantitative analysis; rocks; samples; sheet silicates; silicates; soils; structural analysis; terrestrial planets; X-ray diffraction data ER - TY - JOUR T1 - Crater floor slope as a measure of long-wavelength changes in topography on Mercury AN - 1773800123; 2016-023712 AB - During the course of three flybys and an orbital mission phase that began on 18 March 2011, the MESSENGER spacecraft has been performing a detailed survey of Mercury in order to characterize the planet's origin and evolution. Precise topographic information about the surface of Mercury is being collected by the Mercury Laser Altimeter (MLA), largely over the northern hemisphere where the spacecraft slant range from the surface is less than 1500 km. Complementary knowledge of surface relief is gained through stereographic imaging by the Mercury Dual Imaging System (MDIS). Analysis of stereographic images returned during MESSENGER's first flyby of Mercury revealed, and orbital MLA profiles have confirmed, the presence of unexpected long-wavelength topography within and adjacent to the Caloris impact basin. In particular, basin topography is far from radially symmetric, and portions of the northern basin floor lie at higher elevation than the nearby basin rim. The anomalously high areas of basin floor appear to be part of a larger-scale topographic variation that extends outside the basin. To assess the nature and development time of this long-wavelength topography we examine surface features that may have been tilted during its formation. In particular, we investigate the idea that the slopes of the floors of nominally flat-floored impact craters within and near the Caloris basin may, depending on their age, reflect changes in long-wavelength slopes associated with the large-scale topography. Whereas floor slopes for individual craters may be the result of any of several volcanic, tectonic, or impact processes, a large-scale organization of slope direction and magnitude can be an indicator of a common origin. Results from the measurement of crater floor slopes from MLA profiles across the northern Caloris region of Mercury reveal that a majority of flat crater floors profiled by MLA have along-track slopes between approximately 0.25 and 1.5 degrees . Moreover, the magnitudes and along-track slope directions of these crater floors are generally spatially correlated with the long-wavelength slope of the Caloris floor topography. Ongoing collection of topographic profiles by MLA will serve to extend the statistical sample of craters that may have been influenced by the development of this large-scale feature as well as permit estimation of cross-track slopes for some craters, both crucial for understanding its development. Results to date also suggest that measurement of post-impact tilting of crater floors may provide a means more generally to assess the existence and development of comparable late-stage long-wavelength surface deformation across the planet. JF - American Geophysical Union Fall Meeting AU - Balcerski, J AU - Hauck, S A AU - Barnouin, Olivier S AU - Neumann, Gregory A AU - Oberst, J AU - Phillips, Roger J AU - Preusker, Frank AU - Solomon, S C AU - Zuber, M T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P41A EP - 1579 PB - American Geophysical Union, Washington, DC VL - 2011 KW - terrestrial planets KW - planets KW - topography KW - craters KW - Caloris Basin KW - slopes KW - Mercury Planet KW - MESSENGER Mission KW - deformation KW - relief KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773800123?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Crater+floor+slope+as+a+measure+of+long-wavelength+changes+in+topography+on+Mercury&rft.au=Balcerski%2C+J%3BHauck%2C+S+A%3BBarnouin%2C+Olivier+S%3BNeumann%2C+Gregory+A%3BOberst%2C+J%3BPhillips%2C+Roger+J%3BPreusker%2C+Frank%3BSolomon%2C+S+C%3BZuber%2C+M+T%3BAnonymous&rft.aulast=Balcerski&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-17 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Caloris Basin; craters; deformation; Mercury Planet; MESSENGER Mission; planets; relief; slopes; terrestrial planets; topography ER - TY - JOUR T1 - Laser altimetry by MESSENGER over lobate scarps reveals the lithospheric structure of Mercury AN - 1773800081; 2016-023725 AB - Images from the Mariner 10 flybys of Mercury demonstrated the widespread occurrence of lobate scarps over the approximately 45% of the surface imaged by that spacecraft. Lobate scarps are linear to arcuate structures that are tens to hundreds of kilometers long, have topographic relief of hundreds of meters to kilometers, and are interpreted as the surface expression of major thrust faults. Flybys of Mercury by the MESSENGER spacecraft confirmed that lobate scarps are the dominant tectonic feature over nearly the entire planet. Ranging to the surface by the Mercury Laser Altimeter (MLA) since MESSENGER's orbit insertion on March 18, 2011, has yielded hundreds of topographic profiles, largely over Mercury's northern hemisphere. We utilize MLA measurements of lobate scarp topography to constrain fault models and mechanical properties of Mercury's lithosphere. Mean along-track resolution of the MLA data is approximately 300 m, but cross-track spacing varies with latitude, so we currently confine our analyses to individual profiles. Overlaying MLA profiles on images taken by the Mercury Dual Imaging System (MDIS) allows the relief and morphology of lobate surface scarps in Mercury's northern hemisphere to be characterized. Many of these features display the expected signature for lithospheric flexure in response to bending moments applied at underlying thrust faults. We model these faults and their accompanying flexure by means of a mechanical model of the lithosphere that includes an elastic plate overlying an inviscid substrate to accommodate buoyancy forces. Model parameters that are varied are the geometry of the fault and the thickness of the effective elastic lithosphere. Long-wavelength pre-scarp topography is estimated by first de-trending the profiles. We estimate the thickness of the mechanical lithosphere via the relationship between bending moment and plate curvature given a yield strength envelope for Mercury's lithosphere. Comparison of model profiles to the MLA profiles over lobate scarps provides information on the local mechanical thickness of the lithosphere in the northern hemisphere of Mercury. JF - American Geophysical Union Fall Meeting AU - Ritzer, J A AU - Johnson, C L AU - Hauck, S A AU - Watters, T R AU - Barnouin, Olivier S AU - Neumann, Gregory A AU - Mazarico, Erwan AU - Phillips, Roger J AU - Solomon, S C AU - Zuber, M T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P41A EP - 1594 PB - American Geophysical Union, Washington, DC VL - 2011 KW - laser methods KW - lithosphere KW - Mariner 10 KW - mechanical properties KW - altimetry KW - relief KW - terrestrial planets KW - models KW - planets KW - topography KW - thrust faults KW - Mercury Planet KW - Mariner Program KW - thickness KW - scarps KW - MESSENGER Mission KW - faults KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773800081?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Laser+altimetry+by+MESSENGER+over+lobate+scarps+reveals+the+lithospheric+structure+of+Mercury&rft.au=Ritzer%2C+J+A%3BJohnson%2C+C+L%3BHauck%2C+S+A%3BWatters%2C+T+R%3BBarnouin%2C+Olivier+S%3BNeumann%2C+Gregory+A%3BMazarico%2C+Erwan%3BPhillips%2C+Roger+J%3BSolomon%2C+S+C%3BZuber%2C+M+T%3BAnonymous&rft.aulast=Ritzer&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-17 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - altimetry; faults; laser methods; lithosphere; Mariner 10; Mariner Program; mechanical properties; Mercury Planet; MESSENGER Mission; models; planets; relief; scarps; terrestrial planets; thickness; thrust faults; topography ER - TY - JOUR T1 - Mixed-layered clays as evidence for widespread diagenesis on Mars AN - 1773799998; 2016-023700 AB - The abundance of clay mineral deposits in the >3.5 Ga Noachian crust of Mars suggests widespread water-rock interaction and aqueous alteration during the first billion years of the planet's history. In addition, the ancient rock record of Mars is remarkably well preserved compared with that of Earth due to the lack of crustal recycling. However, aqueous and eolian sedimentation, volcanism, and deposition of impact ejecta all likely contributed to the geologic record of Mars for several billion years, and all of these processes would contribute to the burial of near-surface sediments. On Earth, the burial of smectitic clay minerals results in the formation of mixed-layered clay minerals, commonly illite/smectite or chlorite/smectite, which are ultimately transformed to illite and chlorite, respectively. The rate and extent of these processes depend on factors such as initial smectite composition, fluid chemistry, time, and temperature. The oldest smectites on Earth may only be 600 Myr old, whereas smectites identified on Mars are inferred to be >3.5 Gyr old, a remarkable difference even in the absence of plate tectonics for the latter. If Martian clay mineral deposits are truly this ancient and still smectitic, then this would have profound implications for geothermal gradients and/or the duration of water-rock interaction in the ancient crust. Here we examine visible-near infrared CRISM spectra for a variety of Martian clay deposits in greater detail, exploring the possibility that many previously identified smectite deposits are more consistent with mixed-layered chlorite/smectite. Analysis of laboratory data for di- and trioctahedral smectites and mixed-layered chlorite/smectite reveals that subtle differences in the reflectance spectra between these clay minerals can be parameterized and thus allow them to be distinguished from each other. Alhough some ambiguity exists in distinguishing physical mixtures of chlorite and smectite from mixed-layered chlorite/smectite, these cases can often be identified by visual inspection of the reflectance spectra. Application of our derived parameters to CRISM spectra reveals that most clay mineral deposits on Mars are consistent with mixed-layered chlorite/smectite or chlorite, and that smectitic clays are relatively uncommon. This suggests that most clay minerals on Mars have experienced some degree of chloritization and diagenesis if they were originally formed as smectite. Future work that helps to constrain the exact degree of chloritization may also help to constrain the geothermal gradient on early Mars, longevity of crustal fluid circulation, and the potential for Martian clay deposits to preserve organic material. JF - American Geophysical Union Fall Meeting AU - Milliken, Ralph AU - Bristow, T F AU - Bish, D L AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P34C EP - 02 PB - American Geophysical Union, Washington, DC VL - 2011 KW - silicates KW - alteration KW - Noachian KW - Mars KW - metasomatism KW - laboratory studies KW - water-rock interaction KW - heat flow KW - geothermal gradient KW - chlorite group KW - experimental studies KW - CRISM KW - smectite KW - illite KW - ejecta KW - clay minerals KW - terrestrial planets KW - chlorite KW - planets KW - organic compounds KW - diagenesis KW - sheet silicates KW - mixed-layer minerals KW - chloritization KW - crust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773799998?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Mixed-layered+clays+as+evidence+for+widespread+diagenesis+on+Mars&rft.au=Milliken%2C+Ralph%3BBristow%2C+T+F%3BBish%2C+D+L%3BAnonymous&rft.aulast=Milliken&rft.aufirst=Ralph&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-03-17 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - alteration; chlorite; chlorite group; chloritization; clay minerals; CRISM; crust; diagenesis; ejecta; experimental studies; geothermal gradient; heat flow; illite; laboratory studies; Mars; metasomatism; mixed-layer minerals; Noachian; organic compounds; planets; sheet silicates; silicates; smectite; terrestrial planets; water-rock interaction ER - TY - JOUR T1 - Utilizing NASA EOS, European remote sensing satellites (ERS-1 & 2), and ENVISAT (Environmental Satellite) to create a methodology for monitoring marine debris dispersal to coastal areas by examining the Gulf of Mexico Loop Current AN - 1765875586; 2016-010897 AB - The goal of this project is to apply satellite data to model surface circulation in the Gulf of Mexico as a means to aid in the monitoring of marine debris dispersal and the regulation of marine debris practices. Marine debris is a persistent problem for coastal areas throughout the world. In the Gulf of Mexico, the Loop Current flows north through the Yucatan Channel, loops east, then south, exiting through the Florida Straits. Clockwise-rotating areas of warm water, known as eddies, periodically separate from the Loop Current. These eddies have the potential to trap and transport debris onto shores, such as the Padre Island National Seashore. The latter is a 68 mile long barrier island beach in southeastern Texas, and is the longest undeveloped beach in the world. This naturally formed beach can accumulate up to one ton of marine debris per linear mile. This project used sea surface height and height anomaly data based on NASA RADAR altimeter satellites TOPEX/Poseidon, Jason 1, and Jason 2; as well as European RADAR altimeters onboard ERS-1, ERS-2 (European Remote Sensing Satellite), and ENVISAT (Environmental Satellite). This project also employed MODIS sea surface temperature (SST) data to aid in monitoring and visualizing the Loop Current. The sea surface height and height anomaly data were processed to calculate geostrophic flow velocities and predict particle paths. This research provided NOAA's Marine Debris Program and the Padre Island National Seashore with a better understanding of how the Loop Current and surface circulation patterns disperse marine debris to the region. A methodology to monitor Gulf of Mexico surface circulation and predict particle paths by using RADAR altimeter data were provided to partnering agencies. The project provided maps of debris trajectories and geostrophic currents that demonstrate the usefulness of satellite altimetry data to monitor oceanographic processes which in turn affect the distribution of marine debris. JF - American Geophysical Union Fall Meeting AU - Reahard, R R AU - Albin, Aaron AU - Barrett, Shelby G AU - Brooks, C AU - Lee, L AU - Mallett, Candis AU - Pezold, B AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract OS33C EP - 1690 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - Envisat KW - Marine Debris Program KW - marine pollution KW - government agencies KW - Gulf of Mexico KW - beaches KW - Kenedy County Texas KW - ERS KW - currents KW - Willacy County Texas KW - barrier islands KW - ocean circulation KW - monitoring KW - Kleberg County Texas KW - pollutants KW - radar methods KW - pollution KW - Texas KW - altimetry KW - satellite methods KW - ocean currents KW - Gulf of Mexico Loop Current KW - Padre Island National Seashore KW - Padre Island KW - NASA KW - eddies KW - southeastern Texas KW - sea-surface temperature KW - North Atlantic KW - Atlantic Ocean KW - remote sensing KW - MODIS KW - 20:Applied geophysics KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765875586?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Utilizing+NASA+EOS%2C+European+remote+sensing+satellites+%28ERS-1+%26amp%3B+2%29%2C+and+ENVISAT+%28Environmental+Satellite%29+to+create+a+methodology+for+monitoring+marine+debris+dispersal+to+coastal+areas+by+examining+the+Gulf+of+Mexico+Loop+Current&rft.au=Reahard%2C+R+R%3BAlbin%2C+Aaron%3BBarrett%2C+Shelby+G%3BBrooks%2C+C%3BLee%2C+L%3BMallett%2C+Candis%3BPezold%2C+B%3BAnonymous&rft.aulast=Reahard&rft.aufirst=R&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-05-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - altimetry; Atlantic Ocean; barrier islands; beaches; currents; eddies; Envisat; ERS; government agencies; Gulf of Mexico; Gulf of Mexico Loop Current; Kenedy County Texas; Kleberg County Texas; Marine Debris Program; marine pollution; MODIS; monitoring; NASA; North Atlantic; ocean circulation; ocean currents; Padre Island National Seashore; pollutants; pollution; radar methods; remote sensing; satellite methods; sea-surface temperature; southeastern Texas; Texas; United States; Willacy County Texas; Padre Island ER - TY - JOUR T1 - Using the bombardment history of the Moon to understand planet formation AN - 1765875537; 2016-010991 AB - The Moon is unique. It is the only object that is both relatively accessible and still bears scars from practically every epoch of solar system formation. This is both a challenge and a blessing. It is a challenge because to understand the Moon's complex bombardment history, we need to understand the formation and evolution of the solar system as a whole. It is a blessing because the Moon is an irreplaceable resource for the study of events that have shaped the Earth and other planets. For example, we can now show the Moon's bombardment history can be broken into several episodes defined by planet formation processes. The earliest phase lasts for several hundreds of My after the first solids form. Here many planets grow via a new process called "planetesimal-driven migration", with embryos moving outward in the disk by gravitationally-scattering planetesimals. This mobility assists accretion and may explain the interesting properties of certain worlds (e.g., Mars). In the outer solar system, the giant planets form on different orbits than their observed ones via a variety of processes that we are still struggling to understand. The evidence they had a different configuration, however, can be found in (i) the orbital distribution of the asteroid belt, with particular unusual asteroids residing where Jupiter used to have its mean motion resonances, and (ii) in the lunar crater record, with the oldest craters formed at half the impact velocity than more recent ones. The lunar impact flux over this interval constrains how these worlds evolved. The second episode occurred near 4.1 Ga and is often called the "Nice model". It was triggered by a dynamical instability taking place among the giant planets, who quickly moved to their current orbits via interactions with both themselves and comet-like planetesimals scattered out of a disk residing beyond 12 AU. A by-product of this planetary reconfiguration was the ejection of comets and asteroids from stable reservoirs across this solar system. Some hit the Moon and produced the so-called lunar "cataclysm", with impact velocities nearly the same as current values. This velocity change allows us to use craters to predict that this episode started near the formation time of lunar basin Nectaris. The episode's end is often thought to be marked across the solar system by the formation of the last lunar basin Orientale near 3.7 Ga. However, basin-forming projectiles liberated by this event continued to hit Earth throughout the Archean and likely persisted until approximately 2.5 Ga. The implications of this for the history of our biosphere are likely to be profound. The final episode, which lasted billions of years, is defined by collision events in the asteroid belt, which deliver impactors to the inner solar system via dynamical processes. This period likely contains both "lulls" and intervals of steeply higher impact rates via asteroid showers. While the history of this period is still poorly understood, correlations between the lunar crater record and family-forming events in the main belt suggest impacts have influenced, perhaps significantly, the evolution of life on Earth. JF - American Geophysical Union Fall Meeting AU - Bottke, W F AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P11I EP - 01 PB - American Geophysical Union, Washington, DC VL - 2011 KW - processes KW - cratering KW - Earth KW - Moon KW - orbits KW - lunar cataclysm KW - bombardment KW - biologic evolution KW - planetesimals KW - Nice model KW - impacts KW - planetesimal-driven migration KW - genesis KW - craters KW - planetology KW - 08:General paleontology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765875537?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Using+the+bombardment+history+of+the+Moon+to+understand+planet+formation&rft.au=Bottke%2C+W+F%3BAnonymous&rft.aulast=Bottke&rft.aufirst=W&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - biologic evolution; bombardment; cratering; craters; Earth; genesis; impacts; lunar cataclysm; Moon; Nice model; orbits; planetesimal-driven migration; planetesimals; planetology; processes ER - TY - JOUR T1 - Astrobiological journeys to and from the south polar sea of Enceladus; bidirectional interactions with the Saturn magnetosphere AN - 1765875516; 2016-010955 AB - The spectacularly cryovolcanic moon Enceladus is a major source of plasma for the Saturn magnetosphere via ionization of the ejected molecular species and ice grains. Field-aligned plasma flows from the Enceladus environment visibly impact the moon's magnetic footpoint in Saturn's polar auroral region, while water group and other ions from the moon emissions diffuse radially throughout the magnetosphere and may be the dominant source of oxygen for Titan's oxygen-poor upper atmosphere. But the moon-magnetosphere interaction is bidirectional in the sense that the moon surface is globally exposed to constant irradiation by the returning magnetospheric ions and by energetic electrons from the field-aligned and radially diffusing populations. The returning ion source operates both on global scales of the magnetosphere and locally for highly reactive species produced in the ejecta plume. All of these sources likely combine to produce a highly oxidized global surface layer. Since plasma electrons and ions are cooled by interaction with neutral gas and E-ring ice grains from Enceladus, the moon emissions have a governing effect on the seed populations of energetic particles that irradiate the surface. The proposed subsurface polar sea and transient crustal overturn in the south polar region could bring the polar surface oxidants into contact with hydrocarbons and ammonia to make oxidation product gases contributing to the cryovolcanic jets, a process first proposed by Cooper et al. (Plan. Sp. Sci., 2009). As has been previously suggested for Europa, the oxidants could contribute to enhanced astrobiological potential of Enceladus, perhaps even higher than for Europa where organic hydrocarbons have not yet been directly detected. Unlike Europa, Enceladus shows no sign of an oxygen-dominated exosphere that could otherwise be indicative of extreme surface and interior oxidation inhibiting the detectable survival and evolution of complex organics. JF - American Geophysical Union Fall Meeting AU - Cooper, John F AU - Sittler, Edward C AU - Lipatov, Alexander S AU - Sturner, S J AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P11B EP - 1597 PB - American Geophysical Union, Washington, DC VL - 2011 KW - icy satellites KW - cryovolcanism KW - irradiation KW - oxidation KW - solar wind KW - magnetosphere KW - astrobiology KW - boundary interactions KW - magnetic field KW - giant planets KW - Saturn KW - planets KW - organic compounds KW - outer planets KW - Enceladus Satellite KW - satellites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765875516?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Astrobiological+journeys+to+and+from+the+south+polar+sea+of+Enceladus%3B+bidirectional+interactions+with+the+Saturn+magnetosphere&rft.au=Cooper%2C+John+F%3BSittler%2C+Edward+C%3BLipatov%2C+Alexander+S%3BSturner%2C+S+J%3BAnonymous&rft.aulast=Cooper&rft.aufirst=John&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - astrobiology; boundary interactions; cryovolcanism; Enceladus Satellite; giant planets; icy satellites; irradiation; magnetic field; magnetosphere; organic compounds; outer planets; oxidation; planets; satellites; Saturn; solar wind ER - TY - JOUR T1 - ECHO's Reverb as a client to the CEOS CWIC catalog portal using OGC's CSW protocol AN - 1765874937; 2016-015247 AB - Interoperabilty gaps have made cross-community and multi-disciplinary data search and access a major challenge within the larger earth science community. There have been many attempts at providing interoperable catalog services that can be applied across Earth Science disciplines but with varying degrees of success. We have attempted to evaluate the Open Geospatial Consortium's (OGC) Catalog Services - Web (CSW) protocol for it's effectiveness as an interoperable catalog service for a wide-range of Earth Science data. To do so, we developed an interface between NASA's Reverb web client and the CEOS Integrated Catalog (CWIC) using the CSW protocol with the ISO 19115 profile. Reverb is a modern web client designed for searching and accessing the data described by NASA's Earth Observing System (EOS) Clearinghouse (ECHO). ECHO is a spatial and temporal metadata registry and order broker built by NASA's Earth Science Data and Information System (ESDIS) that enables the science community to more easily use and exchange NASA's data and services. ECHO stores metadata from a variety of earth science disciplines and domains, including Climate Variability and Change, Carbon Cycle and Ecosystems, Earth Surface and Interior, Atmospheric Composition, Weather, and Water and Energy Cycle. Reverb has been designed to aid the science user in quickly navigating through the massive volume of metadata that it takes to describe several petabytes of scientific data from a variety of disciplines. CWIC is, at present, a prototype system that provides an aggregation portal for major CEOS agency catalog systems. CWIC presents a CSW portal interface that receives CSW requests, distributes inventory searches to the CEOS partner inventory systems via their native protocols, and returns the results in properly formatted CSW responses. CWIC includes an interoperable catalog of data from US agencies NASA, NOAA, USGS, as well as data from Brazil's National Institute for Space Research (INPE), and China's Academy of Opto-Electronics (AOE). CWIC provides both ISO 19115 and ebRIM CSW profiles. For this study, we developed a protocol adapter which exposes an ECHO API interface to which Reverb connects and communicates. The adapter software provides bi-directional translation of the ECHO protocol with the CSW protocol. The CSW side of the adapter communicates with CWIC using the CSW protocol. In between, the adapter transforms the requests and responses from one protocol to the other. This provided us the opportunity to analyze the results of mapping all of the attributes of Reverb's multi-discipline search requests into CSW requests as well as mapping the CSW/ISO-19115 search results back into Reverb results. This talk will focus upon lessons learned from our study, especially in the areas of: Efficiency of the CSW protocol for performing cross-discipline earth science data search and access. Application of the ISO 19115 profile. The challenges of attribute mapping. Performance and scalability issues. A live demo of the Reverb to CWIC system will be provided. JF - American Geophysical Union Fall Meeting AU - Farley, John D AU - Mitchell, Andrew E AU - Nakamura, Evelyn N AU - Duma, Calin AU - Enloe, Yonsook AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract IN31A EP - 1433 PB - American Geophysical Union, Washington, DC VL - 2011 KW - Reverb KW - government agencies KW - Earth Science Data and Information System KW - interoperability KW - Catalog Services, Web KW - information management KW - World Wide Web KW - data management KW - China, Academy of OptoElectronics KW - Brazil, National Institute for Space Research KW - Earth Observing System KW - geoscience KW - NASA KW - NOAA KW - catalogs KW - computer networks KW - USGS KW - Open Geospatial Consortium KW - Internet KW - remote sensing KW - real-time methods KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765874937?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=ECHO%27s+Reverb+as+a+client+to+the+CEOS+CWIC+catalog+portal+using+OGC%27s+CSW+protocol&rft.au=Farley%2C+John+D%3BMitchell%2C+Andrew+E%3BNakamura%2C+Evelyn+N%3BDuma%2C+Calin%3BEnloe%2C+Yonsook%3BAnonymous&rft.aulast=Farley&rft.aufirst=John&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Brazil, National Institute for Space Research; Catalog Services, Web; catalogs; China, Academy of OptoElectronics; computer networks; data management; Earth Observing System; Earth Science Data and Information System; geoscience; government agencies; information management; Internet; interoperability; NASA; NOAA; Open Geospatial Consortium; real-time methods; remote sensing; Reverb; USGS; World Wide Web ER - TY - JOUR T1 - The case for an intra-Pacific real time GNSS warning network AN - 1765869408; 2016-015222 AB - Most natural hazards are regional in nature and are not limited to national boundaries. This talk is an appeal for the development of an intra-Pacific real time GNSS network of ground stations for tsunami and earthquake warning. The Tohoku earthquake of March 11, 2011 and its resulting tsunami amply demonstrated the value of real time GNSS analysis and the need for these data to be distributed within a multinational framework. Several authors have demonstrated the ability of the Japanese GEONET to capture in great detail the motions of the Earth's crust during that earthquake. As for previous Indo-Pacific earthquakes, NASA scientists demonstrated through modeling and observation that these deformation measurements could be transformed into reliable estimations of tsunamogenic potential. The GEONET also captured for the first time in great detail the generation and propagation of the resulting tsunami by the detection of the acoustically coupled Traveling Ionospheric Disturbances. The visualizations are very dramatic though the data from the GEONET and their analysis became available only days after this disaster. The technology and algorithms exist to implement an intra-Pacific GNSS warning network. The utility of this network will extend well beyond their value to the mitigation of natural disasters. JF - American Geophysical Union Fall Meeting AU - LaBrecque, John L AU - Song, Yuhe AU - Galvan, David A AU - Komjathy, Attila AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract IN14A EP - 06 PB - American Geophysical Union, Washington, DC VL - 2011 KW - tsunamis KW - early warning systems KW - geologic hazards KW - Pacific region KW - international cooperation KW - satellite methods KW - warning systems KW - Galileo GNSS KW - natural hazards KW - Circum-Pacific region KW - earthquakes KW - remote sensing KW - real-time methods KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765869408?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+case+for+an+intra-Pacific+real+time+GNSS+warning+network&rft.au=LaBrecque%2C+John+L%3BSong%2C+Yuhe%3BGalvan%2C+David+A%3BKomjathy%2C+Attila%3BAnonymous&rft.aulast=LaBrecque&rft.aufirst=John&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Circum-Pacific region; early warning systems; earthquakes; Galileo GNSS; geologic hazards; international cooperation; natural hazards; Pacific region; real-time methods; remote sensing; satellite methods; tsunamis; warning systems ER - TY - JOUR T1 - Characterization of water-soluble organic aerosol in coastal New England: Implications of variations in size distribution AN - 1709771699; 15965685 AB - Size distributions up to 10-micron aerosol diameter (DP) of organic carbon (OC) and water-soluble organic carbon (WSOC) were measured at two sites in coastal New England, slightly inland at Thompson Farm (TF) and offshore at Isles of Shoals (IOS). Significant OC concentrations were measured across the full size distribution at TF and IOS, respectively. The WSOC fraction (WSOC/OC) was largest in the accumulation mode with values of 0.86 and 0.93 and smallest in the coarse mode with values of 0.61 and 0.79 at TF and IOS, respectively. Dicarboxylic acids containing up to five carbon atoms (C5) were concentrated in droplet and accumulation mode aerosol with only minor contributions in the coarse mode. C1-C3 monocarboxylic acids were generally near or below detection limits. Results from proton nuclear magnetic resonance (H+-NMR) spectroscopy analyses showed that the organic functional group characterized by protons in the alpha position to an unsaturated carbon atoms ([H-C-C]) was the dominant WSOC functionality at both TF and IOS, constituting 34 and 43% of carbon-weighted H+-NMR signal, respectively. Size distributions of each H+-NMR-resolved organic functionality are presented. Source apportionment using H+-NMR fingerprints is also presented, and results indicate that nearly all of the WSOC at TF and IOS spectroscopically resembled secondary organic aerosol, regardless of DP. JF - Atmospheric Environment AU - Ziemba, L D AU - Griffin, R J AU - Whitlow, S AU - Talbot, R W AD - Climate Change Research Center, University of New Hampshire, Durham, NH, USA luke.ziemba@nasa.gov Y1 - 2011/12// PY - 2011 DA - December 2011 SP - 7319 EP - 7329 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 45 IS - 39 SN - 1352-2310, 1352-2310 KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE); Aerospace & High Technology Database (AH) KW - Aerosols KW - Droplets KW - Carbon KW - Coastal KW - Atmospherics KW - Spectroscopy KW - Fingerprints KW - Size distribution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1709771699?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Characterization+of+water-soluble+organic+aerosol+in+coastal+New+England%3A+Implications+of+variations+in+size+distribution&rft.au=Ziemba%2C+L+D%3BGriffin%2C+R+J%3BWhitlow%2C+S%3BTalbot%2C+R+W&rft.aulast=Ziemba&rft.aufirst=L&rft.date=2011-12-01&rft.volume=45&rft.issue=39&rft.spage=7319&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2Fj.atmosenv.2011.08.022 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-09-01 N1 - Last updated - 2016-08-08 DO - http://dx.doi.org/10.1016/j.atmosenv.2011.08.022 ER - TY - JOUR T1 - GEOS-Chem modeling of volcanic aerosol radiative forcing; constraint from OMI SO2 data and assessment with NASA's A-train satellite observations AN - 1703690976; 2015-076941 AB - The volcanic SO2 amount and injection height are key uncertainties for understanding the volcanic aerosol radiative forcing. In the past, many volcanic SO2 emission inventories were based on ground measurements, and the injection height was specified according to volcanic eruption index (VEI), which is a combination of many factors and often does not necessarily reflect eruption altitude. To reduce these uncertainties in the estimate of the volcanic aerosol radiative forcing, we emphasize the use of satellite data to constrain the model simulation, and illustrate our method with a case study of the August 2008 Kasatochi eruption. A 3D global chemical transport model (GEOS-Chem) is initialized by an improved volcanic SO2 emission inventory retrieved from the Ozone Monitoring Instrument (OMI) Iterative Spectral Fitting (ISF) technique that provides accurate amount and injection height of volcanic SO2. The simulations show that the modeled volcanic SO2 plume and sulfate aerosol optical depth are in good agreement with satellite observations both spatially and temporally. GEOS's cloud water path are compared against the Moderate Resolution Imaging Spectroradiometer (MODIS) cloud products, and are found to often have a positive bias, indicating that oxidation rate of SO2 in GEOS-Chem model sometimes is too fast. Overall, however, the simulated 9-day e-folding time of the erupted SO2 is consistent with the OMI's stand-alone assessment, suggesting no systematic bias in modeled atmospheric loading of volcanic SO2 and sulfate aerosols. Furthermore, the simulated volcanic sulfate aerosols in the stratosphere are also comparable with the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) measurements of aerosols in their vertical distributions. Sulfate aerosol radiative forcing calculated from a four-stream radiative transfer model indicated that the volcanic aerosols were able to impact the shortwave radiative fluxes at the top of the entire Northern Hemispheric atmosphere in 2 weeks after the eruption. The radiative impact gradually decreased with time, and became negligible 6 months after the eruption. This study is among the first of assimilating both satellite-based SO2 plume height and amount into a chemical transport model for an improved simulation of volcanic SO2 transport, which has important implications to study the natural climate forcing as well as to forecast atmospheric visibility that is key to aviation safety. JF - American Geophysical Union Fall Meeting AU - Park, S AU - Wang, J AU - Yang, Kai AU - Carn, S A AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract A53C EP - 0362 PB - American Geophysical Union, Washington, DC VL - 2011 KW - laser methods KW - geologic hazards KW - simulation KW - ozone KW - stratosphere KW - transport KW - climate forcing KW - sulfur dioxide KW - programs KW - monitoring KW - prediction KW - satellite methods KW - measurement KW - models KW - safety KW - lidar methods KW - navigation KW - eruptions KW - aircraft KW - natural hazards KW - aerosols KW - instruments KW - remote sensing KW - MODIS KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1703690976?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=GEOS-Chem+modeling+of+volcanic+aerosol+radiative+forcing%3B+constraint+from+OMI+SO2+data+and+assessment+with+NASA%27s+A-train+satellite+observations&rft.au=Park%2C+S%3BWang%2C+J%3BYang%2C+Kai%3BCarn%2C+S+A%3BAnonymous&rft.aulast=Park&rft.aufirst=S&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/A/sessions/A53C/abstracts/A53C-0362.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-08-13 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - aerosols; aircraft; climate forcing; eruptions; geologic hazards; instruments; laser methods; lidar methods; measurement; models; MODIS; monitoring; natural hazards; navigation; ozone; prediction; programs; remote sensing; safety; satellite methods; simulation; stratosphere; sulfur dioxide; transport ER - TY - JOUR T1 - Quantifying the impact of remotely-sensed precipitation, soil moisture and snow products for North American hydrologic hazard assessment AN - 1686063010; 2015-050310 AB - Reliable detection and prediction of hydrologic hazards, including floods, droughts, and rainfall-induced landslides, requires an understanding of the uncertainty in inputs (e.g. remotely sensed versus radar and rain gauge-based precipitation) with and without observational constraints on model state variables such as soil moisture and snowpack. In this invited talk, we will show results from NASA's Land Information System configured over the North American Land Data Assimilation System (NLDAS) domain, to demonstrate the impacts of remotely sensed precipitation on landslide triggering, as well as soil moisture and snow product assimilation on drought assessment (expressed via simulated ET and soil moisture profiles) and flood assessment (expressed via simulated streamflow). For our soil moisture assimilation experiments, we utilize two different surface soil moisture retrievals (NASA Level-3 product and the Land Parameter Retrieval Model (LPRM) product from VU Amsterdam) from the Advanced Microwave Scanning Radiometer for the Earth Observing System (AMSR-E). For the snow assimilation experiments, we utilize the snow covered area from the Moderate Resolution Imaging Spectroradiometer (MODIS) and snow depth from AMSR-E. The results indicate that the assimilation of LPRM and bias-corrected AMSR-E SWE data help in further improving the soil moisture profile, snowpack and ultimately fluxes such as ET and runoff. JF - American Geophysical Union Fall Meeting AU - Peters-Lidard, C D AU - Kumar, S AU - Mocko, D M AU - Kirschbaum, D B AU - Harrison, K W AU - Tian, Y AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H12E EP - 01 PB - American Geophysical Union, Washington, DC VL - 2011 KW - hydrology KW - North America KW - soil profiles KW - geologic hazards KW - rainfall KW - moisture KW - prediction KW - drought KW - landslides KW - streamflow KW - precipitation KW - snow KW - runoff KW - mass movements KW - natural hazards KW - floods KW - risk assessment KW - remote sensing KW - MODIS KW - 21:Hydrogeology KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1686063010?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Quantifying+the+impact+of+remotely-sensed+precipitation%2C+soil+moisture+and+snow+products+for+North+American+hydrologic+hazard+assessment&rft.au=Peters-Lidard%2C+C+D%3BKumar%2C+S%3BMocko%2C+D+M%3BKirschbaum%2C+D+B%3BHarrison%2C+K+W%3BTian%2C+Y%3BAnonymous&rft.aulast=Peters-Lidard&rft.aufirst=C&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-06-05 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - drought; floods; geologic hazards; hydrology; landslides; mass movements; MODIS; moisture; natural hazards; North America; precipitation; prediction; rainfall; remote sensing; risk assessment; runoff; snow; soil profiles; streamflow ER - TY - JOUR T1 - Comparing the stress change characteristics and aftershock decay rate of the 2011 Mineral, VA, earthquake with similar earthquakes from a variety of tectonic settings AN - 1686055785; 2015-048387 AB - On August 23, 2011, the magnitude 5.8 Mineral, VA, earthquake rocked the U.S. National Capital region (Washington, DC) drawing worldwide attention to the occurrence of intraplate earthquakes. Using regional Coulomb stress change, we evaluate to what extent slip on faults during the Mineral, VA, earthquake and its aftershocks may have increased stress on notable Cenozoic fault systems in the DC metropolitan area: the central Virginia seismic zone, the DC fault zone, and the Stafford fault system. Our Coulomb stress maps indicate that the transfer of stress from the Mineral, VA, mainshock was at least 500 times greater than that produced from the magnitude 3.4 Germantown, MD, earthquake that occurred northwest of DC on July 16, 2010. Overall, the Mineral, VA, earthquake appears to have loaded faults of optimum orientation in the DC metropolitan region, bringing them closer to failure. The distribution of aftershocks of the Mineral, VA, earthquake will be compared with Coulomb stress change maps. We further characterize the Mineral, VA, earthquake by comparing its aftershock decay rate with that of blind thrust earthquakes with similar magnitude, focal mechanism, and depth from a variety of tectonic settings. In particular, we compare aftershock decay relations of the Mineral, VA, earthquake with two well studied California reverse faulting events, the August 4, 1985 Kettleman Hills (Mw = 6.1) and October 1, 1987 Whittier Narrow (Mw = 5.9) earthquakes. Through these relations we test the hypothesis that aftershock duration is inversely proportional to fault stressing rate, suggesting that aftershocks in active tectonic margins may last only a few years while aftershocks in intraplate regions could endure for decades to a century. JF - American Geophysical Union Fall Meeting AU - Walsh, L S AU - Montesi, L G AU - Sauber, J M AU - Watters, T R AU - Kim, W AU - Martin, A J AU - Anderson, R AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract S11B EP - 2241 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - Mineral earthquake 2011 KW - Virginia KW - Whittier Narrows earthquake 1987 KW - stress KW - California KW - District of Columbia KW - aftershocks KW - seismicity KW - Virginia earthquake 2011 KW - tectonics KW - Kettleman Hills earthquake 1985 KW - earthquakes KW - faults KW - fault zones KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1686055785?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Comparing+the+stress+change+characteristics+and+aftershock+decay+rate+of+the+2011+Mineral%2C+VA%2C+earthquake+with+similar+earthquakes+from+a+variety+of+tectonic+settings&rft.au=Walsh%2C+L+S%3BMontesi%2C+L+G%3BSauber%2C+J+M%3BWatters%2C+T+R%3BKim%2C+W%3BMartin%2C+A+J%3BAnderson%2C+R%3BAnonymous&rft.aulast=Walsh&rft.aufirst=L&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/S/sessions/S11B/abstracts/S11B-2241.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - SuppNotes - Accessed on Dec. 12, 2014 N1 - Last updated - 2015-06-05 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - aftershocks; California; District of Columbia; earthquakes; fault zones; faults; Kettleman Hills earthquake 1985; Mineral earthquake 2011; seismicity; stress; tectonics; United States; Virginia; Virginia earthquake 2011; Whittier Narrows earthquake 1987 ER - TY - JOUR T1 - Thermal satellite and GPS/TEC observations of atmospheric process during the time of M5.8 Mineral, Virginia earthquake of August 23, 2011; preliminary results AN - 1686055667; 2015-048389 AB - In order to search for any atmospheric signals associated with the Mineral, Virginia earthquake of August 23, 2011 we analyzed different and independent satellite data: A.) TIR (thermal infrared) data from the NOAA/AVHRR and NASA/Aqua/AIRS missions both recording long-wavelength radiation (OLR) and; B.) GPS ground stations Total Electron Content (TEC) measurements, all before and after the M5.9 Mineral, Virginia Earthquake of August 23, 2011. Previously, our analysis of the continuous OLR from the Earth surface indicated anomalous variations, on top of the atmosphere, prior to a number of medium and large type of earthquakes. The first noticeable anomaly of the OLR transient field over Virginia during month of August was seen on Aug 11, and was shifted in northeast direction from the Aug 23rd epicentral area. For the Mineral, VA earthquake, compared to the reference field of August 2004 to 2011, we found a rapid change in the NOAA OLR anomalous flux rate of >1.3 W/m2 at 7:00AM on Aug 23, seven hours days before the event. The OLR anomaly was the largest OLR anomaly over the entire continental United States at this time. This anomaly was three times the standard deviation above the 2004-2011-reference field. Ground thermal measurement indicated similarity for the monthly minimum of relative humidity and monthly maximum of daily air temperate on Aug 21-22, 2011. Our initial results need additional validation and they could be explained within the framework of a model of Lithosphere-Atmosphere-Ionosphere Coupling between the crust and the atmosphere/ionosphere. This methodology has a great potential to increase the scientific understanding of the intraplate earthquakes. JF - American Geophysical Union Fall Meeting AU - Ouzounov, D P AU - Pulinets, S A AU - Palchinskas, V AU - Kafatos, M AU - Taylor, P T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract S11B EP - 2243 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - Mineral earthquake 2011 KW - Virginia KW - geophysical surveys KW - geophysical methods KW - atmosphere KW - satellite methods KW - infrared methods KW - seismicity KW - surveys KW - Virginia earthquake 2011 KW - earthquakes KW - remote sensing KW - 19:Seismology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1686055667?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Thermal+satellite+and+GPS%2FTEC+observations+of+atmospheric+process+during+the+time+of+M5.8+Mineral%2C+Virginia+earthquake+of+August+23%2C+2011%3B+preliminary+results&rft.au=Ouzounov%2C+D+P%3BPulinets%2C+S+A%3BPalchinskas%2C+V%3BKafatos%2C+M%3BTaylor%2C+P+T%3BAnonymous&rft.aulast=Ouzounov&rft.aufirst=D&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/S/sessions/S11B/abstracts/S11B-2243.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - SuppNotes - Accessed on Dec. 19, 2014 N1 - Last updated - 2015-06-05 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - atmosphere; earthquakes; geophysical methods; geophysical surveys; infrared methods; Mineral earthquake 2011; remote sensing; satellite methods; seismicity; surveys; United States; Virginia; Virginia earthquake 2011 ER - TY - JOUR T1 - Hawaii; a plume rising vertically from the top of a lowermost mantle compositional reservoir AN - 1676587364; 2015-038216 AB - The origination depth of the putative plume beneath the Hawaiian hotspot continues to stimulate debate among numerous geophysical, geochemical and geodynamic disciplines. Recent high-resolution tomography models are showing consensus on the existence of a narrow, vertically continuous conduit of low seismic velocities beneath the Hawaiian hotspot that extends well into the lower mantle, although reported resolution diminishes with depth down to about 1500 approximately 2000 km. Evidence that a large low shear velocity province (LLSVP) beneath the Pacific is dense and chemically distinct suggests plume genesis from a thermal boundary layer in a homogeneous deep mantle is overly simplistic. Hotspots predominantly are situated at the margins of LLSVP indicating a relationship to the dynamics of LLSVP edges. In this seismic study we further characterize the shape of the LLSVP beneath Hawaii. Using an algorithm that discerns waveform broadening originating from sharp velocity contrasts, we study the lateral and vertical geometry of the LLSVP. We find that the northeastern portion of the Pacific LLSVP extends approximately 600-900 km above the core-mantle boundary (CMB), with a ridge-like top, remarkably similar in shape to cross-sections through thermo-chemical piles in geodynamic calculations. The location of the inferred ridge top to the LLSVP lies beneath (a) the plume location suggested in tomography, and (b) a region of thinning of the upper mantle transition zone in several studies. These results are consistent with Hawaii being a long-lived, nearly vertical whole mantle plume that originates from a ridge at the top of a chemically distinct LLSVP beneath the Pacific Ocean. Thus isotopic signatures that are unique to ocean island basalts, such as Hawaii, are likely indicators of plume entrainment of materials from a chemically distinct LLSVP mantle reservoir. JF - American Geophysical Union Fall Meeting AU - Zhao, C AU - Garnero, E J AU - Schmerr, N C AU - McNamara, Allen K AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract DI22A EP - 07 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - hot spots KW - volcanic rocks KW - Northeast Pacific KW - isotopes KW - igneous rocks KW - mantle KW - waveforms KW - Hawaiian Hot Spot KW - lower mantle KW - low-velocity zones KW - basalts KW - thermochemical properties KW - mantle plumes KW - East Pacific KW - Hawaii KW - East Pacific Ocean Islands KW - Hawaiian Plume KW - geodynamics KW - plate tectonics KW - North Pacific KW - velocity structure KW - Pacific Ocean KW - shear KW - Oceania KW - Polynesia KW - ocean-island basalts KW - 18:Solid-earth geophysics KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1676587364?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Hawaii%3B+a+plume+rising+vertically+from+the+top+of+a+lowermost+mantle+compositional+reservoir&rft.au=Zhao%2C+C%3BGarnero%2C+E+J%3BSchmerr%2C+N+C%3BMcNamara%2C+Allen+K%3BAnonymous&rft.aulast=Zhao&rft.aufirst=C&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-30 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - basalts; East Pacific; East Pacific Ocean Islands; geodynamics; Hawaii; Hawaiian Hot Spot; Hawaiian Plume; hot spots; igneous rocks; isotopes; low-velocity zones; lower mantle; mantle; mantle plumes; North Pacific; Northeast Pacific; ocean-island basalts; Oceania; Pacific Ocean; plate tectonics; Polynesia; shear; thermochemical properties; United States; velocity structure; volcanic rocks; waveforms ER - TY - JOUR T1 - Remotely sensing thermal infrared earthquake precursor signals AN - 1676585840; 2015-038338 AB - As part of an agreement between NASA and the Arab Youth Venture Foundation (AYVF), three engineering students from the United Arab Emirates (UAE) participated in a 10-week experiential learning program this summer. This educational program is managed by the Ames Office of Education and Public Outreach and is administrated by the Education Associates Program (EAP). Our research, one of the three projects, introduces a novel approach potentially allowing the prediction of earthquakes within 30 days. We tested the hypothesis that there are thermal infrared (TIR) signals emitted by the earth's surface prior to the occurrence of an earthquake detectable in data obtained from NASA's Moderate-resolution Imaging Spectroradiometer (MODIS) sensor on both Terra and Aqua satellites. During analysis, we applied a set of preprocessing algorithms to the satellite data using computing tools and software such as MATLAB and ENVI. We chose to analyze only nighttime satellite data to help reduce sources of variability common to TIR signals. Our preliminary results show that future work is necessary to more fully test the hypothesis. JF - American Geophysical Union Fall Meeting AU - Abumuhair, M M AU - Vanderbilt, V C AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract ED31A EP - 0754 PB - American Geophysical Union, Washington, DC VL - 2011 KW - data processing KW - international cooperation KW - education KW - satellite methods KW - research KW - infrared spectra KW - computer programs KW - thermal anomalies KW - spectra KW - algorithms KW - earthquakes KW - remote sensing KW - MODIS KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1676585840?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Remotely+sensing+thermal+infrared+earthquake+precursor+signals&rft.au=Abumuhair%2C+M+M%3BVanderbilt%2C+V+C%3BAnonymous&rft.aulast=Abumuhair&rft.aufirst=M&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/ED/sessions/ED31A/abstracts/ED31A-0754.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-30 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - algorithms; computer programs; data processing; earthquakes; education; infrared spectra; international cooperation; MODIS; remote sensing; research; satellite methods; spectra; thermal anomalies ER - TY - JOUR T1 - Infrared spectroscopy (6-12 mu m) of Callisto's surface ices with ISOPHOT-S AN - 1676579364; 2015-036947 AB - The analysis of the mid-infrared spectrum of Callisto described in the following was carried out with the intention to remove ambiguities in the identification of spectral features at shorter wavelengths. These concerned in particular the presence of sulfur dioxide on the surface of this moon. A detection of this molecule was first claimed by Noll et al. on the basis of an absorption band centered at 280 nm (36,000 cm (super -1) ) in a spectrum taken of Callisto's leading hemisphere with HST, but OH and organics also absorb in this region of the UV. Callisto's near-infrared spectrum, taken at a later date with NIMS, did not provide a clear answer, either, although it showed an absorption band at 4 mu m (2490 cm (super -1) ), the wavelength of the nu (sub 1) + nu (sub 3) combination of SO (sub 2) . The reason was in this case that the presence of carbonates provided an unlikely, but nevertheless possible, alternative explanation. Searching for features in the mid-infrared, we analyzed the spectrum of Callisto taken with the Photo-Polarimeter (PHT) aboard the ISO satellite (PI: T. Encrenaz). Disk-integrated spectra of Callisto were recorded on 1997-05-23, between 2.5 and 4.9 mu m (PHT-SS) and between 5.8 and 11.6 mu m (PHT-SL). As data with much better signal-to-noise ratio are now available in the near-infrared wavelength range from NIMS on the Galileo spacecraft and VIMS on Cassini, we only present the data from PHT-SL. The astronomical observing template PHT40 was started on Callisto at 4:41 (UT). At that time the apparent planetographic longitude of its center amounted to 72 degrees west, close to the center of the leading hemisphere. The figure shows the emission spectrum of Callisto obtained with PHT-SL. Reflected sunlight contributes only a small part to the measured flux density. The positions of the strongest SO (sub 2) bands are marked. We note that at wavenumbers smaller than 1150 cm (super -1) the large error bars render the spectrum almost useless. Given the possibility of an absorption feature at the exact position of the nu (sub 3) band of sulfur dioxide at 1306 cm (super -1) it seems conceivable that the thermal infrared provides useful information about the composition of Callisto's surface. An in-depth study of the thermal emission from the (sub)surface of Callisto must be performed, however, before firm conclusions about the presence of SO (sub 2) or other molecules can be drawn. It is also desirable to obtain spectra of Callisto over a larger wavelength range than was accessible to ISOPHOT, for example with SOFIA. JF - American Geophysical Union Fall Meeting AU - Burgdorf, M J AU - Cruikshank, D P AU - Quirico, E AU - Dalle Ore, C M AU - Encrenaz, T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P23D EP - 1737 PB - American Geophysical Union, Washington, DC VL - 2011 KW - sulfur dioxide KW - icy satellites KW - Callisto Satellite KW - ISOPHOT-S KW - composition KW - spectra KW - Galilean satellites KW - satellites KW - instruments KW - infrared spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1676579364?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Infrared+spectroscopy+%286-12+mu+m%29+of+Callisto%27s+surface+ices+with+ISOPHOT-S&rft.au=Burgdorf%2C+M+J%3BCruikshank%2C+D+P%3BQuirico%2C+E%3BDalle+Ore%2C+C+M%3BEncrenaz%2C+T%3BAnonymous&rft.aulast=Burgdorf&rft.aufirst=M&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-30 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Callisto Satellite; composition; Galilean satellites; icy satellites; infrared spectra; instruments; ISOPHOT-S; satellites; spectra; sulfur dioxide ER - TY - JOUR T1 - The hydrological cycle on Mars as inferred from the multi O-isotopic composition of carbonates in ALH84001 AN - 1676579072; 2015-036913 AB - Carbonate minerals provide valuable record of the atmosphere in which they are formed. This work utilizes C and O triple isotopic compositions of the carbonate minerals found in ALH84001 to explore the interaction between atmosphere-hydrosphere and lithosphere. The origin of carbonates found in the Martian meteorite ALH84001 (<1%) is heavily debated with low temperature aqueous precipitation, biogenic production, evaporative processes, high temperature reactions, and impact induced melting and reprecipitation are all candidate processes. These carbonates are heterogeneous chemically (Mg, Ca and Fe-Mn rich) and isotopically (delta (super 13) C (sub PDB) = +27 to 46 ppm; delta (super 18) O (sub VSMOW) = +9.5 to 20.6ppm) on micrometer scales. Our stepped phosphoric acid dissolution experiments released CO (sub 2) from multiple phases of Martian carbonate in the rock (12h acid digestion at 25 degrees C for Ca rich phase and 3h acid digestion at 150 degrees C for Mg rich phase). Both Ca and Mg rich phases showed 0.7ppm excess (super 17) O (Delta (super 17) O = delta (super 17) O - 0.52delta (super 18) O) in contrast to terrestrial carbonate minerals formed by surficial weathering of the meteorite with no oxygen isotopic anomaly Delta (super 17) O nearly equal 0 (one hour acid digestion at 25 degrees C). The newly identified Ca-rich carbonate phase is (super 18) O enriched (delta (super 18) O = +25ppm) in contrast to all of the other Ca-rich carbonates previously described. It also contains excess (super 17) O (Delta (super 17) O = 0.7ppm) indicating incorporation of oxygen from an atmospheric source of Martian origin. These oxygen isotope characteristics differentiate this phase from the more commonly described carbonate globules or rosettes and suggest formation from separate aqueous event. This is confirmed by the carbon isotope composition of this new carbonate phase (delta (super 13) C= +20ppm) which differs from the other Martian carbonates in the meteorite and from terrestrial sources. This difference may be an evidence of the long term evolution of carbon isotopes in the atmosphere of Mars. The discovery of highly enriched (O isotopes) Ca-rich phase of Martian carbonate in the meteorite suggests that the history of water-rock interaction preserved in ALH 84001 is even more complex than previously thought. JF - American Geophysical Union Fall Meeting AU - Shaheen, R AU - Niles, P B AU - Chong, K AU - Thiemens, M H AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P23A EP - 1695 PB - American Geophysical Union, Washington, DC VL - 2011 KW - stony meteorites KW - oxygen KW - isotopes KW - Martian meteorites KW - Mars KW - stable isotopes KW - temperature KW - meteorites KW - hydrologic cycle KW - water-rock interaction KW - carbon KW - ALH 84001 KW - O-17/O-16 KW - hydrology KW - isotope ratios KW - C-13/C-12 KW - atmosphere KW - O-18/O-16 KW - achondrites KW - terrestrial planets KW - planets KW - Allan Hills Meteorites KW - Antarctica KW - precipitation KW - low temperature KW - carbonates KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1676579072?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+hydrological+cycle+on+Mars+as+inferred+from+the+multi+O-isotopic+composition+of+carbonates+in+ALH84001&rft.au=Shaheen%2C+R%3BNiles%2C+P+B%3BChong%2C+K%3BThiemens%2C+M+H%3BAnonymous&rft.aulast=Shaheen&rft.aufirst=R&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-30 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - achondrites; ALH 84001; Allan Hills Meteorites; Antarctica; atmosphere; C-13/C-12; carbon; carbonates; hydrologic cycle; hydrology; isotope ratios; isotopes; low temperature; Mars; Martian meteorites; meteorites; O-17/O-16; O-18/O-16; oxygen; planets; precipitation; stable isotopes; stony meteorites; temperature; terrestrial planets; water-rock interaction ER - TY - JOUR T1 - In-situ segregation of ground ice on Mars AN - 1676578382; 2015-036878 AB - Several lines of evidence indicate the presence of nearly pure, segregated ground ice in the martian high latitudes. In particular, shallow ice containing only 1-2% soil was excavated by Phoenix. One hypothesis for the excess ice is that it developed in situ, via a mechanism analogous to terrestrial ice lenses. Problematically, terrestrial soil-ice segregation is driven by freeze/thaw cycles, which have not occurred recently on Mars. Here we investigate ice lens formation at T < 273 K, with attention to the possibility on interannual accumulation of segregated ice, and the effects of salts. We developed a numerical model that applies premelting physics to track phase partitioning and lens growth on Mars. The model balances forces arising from intermolecular interactions against gravity and overburden pressure. Thin films of premelted ice minimize the interfacial free energy between ice and soil particles, leading to strong repulsive forces that are ultimately responsible for frost heave. In a freezing soil, gravity and the repulsive intermolecular forces are balanced by the force transmitted vertically between soil grains. Integrating the force balance equation downward from the surface, we identify layers in which interparticle pressures become negative. At those depths the interparticle forces unload, initiating lens formation. Then, given circumstances in which lens initiation is indicated, we ask how quickly lenses grow, how long growth accumulates, and how rapidly lenses are destroyed. We have modeled the last 10 (super 6) years, assuming two different soils (silt and clay), ice depth determined by vapor-phase equilibration, and, (initially), salt-free liquid phases. Although intermolecular forces are frequently capable of unloading soil grains, rates of vertical H (sub 2) O transport typically limit lens growth to < 1 mu m/year, while ice table migration due to vapor phase transport might average a few mu m/year. Thus, with the possible exception of a single episode at approximately 630 ka bp, vapor phase exchange with the atmosphere would be expected to outstrip and prevent in situ segregated ice lens formation in a salt-free soil. (Earlier in Mars' history however, we find that warmer temperatures frequently lead to macroscopic lens development.) The soils measured by Phoenix of course were not salt-free; in particular the presence of perchlorate argues that our model must be expanded. The inclusion of even a single salt has multiple complicating effects. For saturated Mg(ClO (sub 4) ) (sub 2) solutions, the eutectic temperature is as low as 206 K. The resulting decrease in pore ice at low T leads to higher hydraulic permeability which would enhance growth rates. Liquid phase density increases, which increases the buoyancy forces on soil grains. Conversely, dynamic viscosity also increases, inhibiting lens growth. Both the heat capacity and thermal conductivity of the melt are also affected. At high concentrations, osmotic potentials begin to play a role in determining the movement of melt. Finally, all of these properties evolve continually with temperature, as the composition of the liquid phase changes. Understanding the ways in which these processes might affect in situ segregation of martian ground ice is a challenging and exciting undertaking. JF - American Geophysical Union Fall Meeting AU - Zent, A AU - Sizemore, H G AU - Rempel, A W AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P21D EP - 03 PB - American Geophysical Union, Washington, DC VL - 2011 KW - water KW - soils KW - pressure KW - numerical models KW - in situ KW - density KW - Mars KW - buoyancy KW - terrestrial planets KW - models KW - planets KW - ice KW - frost action KW - ground ice KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1676578382?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=In-situ+segregation+of+ground+ice+on+Mars&rft.au=Zent%2C+A%3BSizemore%2C+H+G%3BRempel%2C+A+W%3BAnonymous&rft.aulast=Zent&rft.aufirst=A&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-30 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - buoyancy; density; frost action; ground ice; ice; in situ; Mars; models; numerical models; planets; pressure; soils; terrestrial planets; water ER - TY - JOUR T1 - Self-consistent models of orbital migration of earths and super-earths AN - 1676577924; 2015-036875 AB - Data from the Kepler mission indicate that the occurrence rate of planets orbiting solar-type stars, with radii between approximately 2 and approximately 4 Rearth and periods less than 50 days, is about 0.13 (Howard et al., 2011, arXiv:1103.2541). A similar rate is provided by radial velocity surveys for planet less than 10 Mearth. In situ formation of all these planets is deemed unlikely. Instead, it is argued that most of them formed farther away from the star and then moved toward smaller radii. One mechanism, capable of delivering to small radii planets formed elsewhere in a gaseous disk, is orbital migration driven by tidal interaction with the disk. We implemented time-dependent models of the orbital evolution of Earth-mass and Super-Earth-mass planets in a protoplanetary disk. The models take into account, in a self-consistent fashion, the following processes: 1) viscous evolution of the gaseous disk; 2) photo-evaporation of the disk gas originating from Far-Ultraviolet, Extreme Ultraviolet, and X-ray photons emitted by a solar-mass star; 3) tidal torque exchange between the disk and the planet. The viscous evolution model is based on the solution of a modified form of the 1D equation that regulates conservation of angular momentum in the disk and accounts for dissipation produced by photo-evaporation and perturbations induced by tidal torques. The photo evaporation rates are calculated by solving the 1+1D radial-vertical structure of the disk (Gorti et al., 2009, Astrophys. J., 705, 1237). The tidal torques exerted by the planet on the disk and vice versa are embedded in the disk evolution equation via a torque density term, derived from 3D hydrodynamics calculations of disk-planet interactions (D'Angelo and Lubow, 2010, Astrophys. J., 724, 730). We performed calculations in which the disk extends in radius from 0.02 to 1000 AU and has an initial surface density distribution applicable to a minimum-mass solar nebula (Davis, 2005, Astrophys. J. Lett., 627, 153). The X-ray and EUV luminosities are approximately 1e-3 Lsun, while the FUV luminosity is between 1e-4 and 0.1 Lsun, depending on the time-dependent accretion rate. Various viscosity regimes were investigated, assuming a kinematic viscosity nu=nu1*sqrt(R1), where R1=R/(1 AU), and nu1 is between 1e-6 and 2e-5 in units of sqrt(G*Msun*AU). The planet grows from 0.3 Mearth to Miso, the isolation mass, within a time Tiso, at an oligarchic growth rate. The values of Miso and Tiso were varied randomly in the ranges between 1 and 10 Mearth and between 1e4 and 1e5 local orbital periods. The initial orbital radius of the planetary core was randomly chosen between 1 and 10 AU. The final distributions of orbital radii show a dependence on disk viscosity. For nu1 approximately 1e-6, most of the planets are delivered within approximately 0.3 AU of the star (periods less than approximately 60 days). For nu1 approximately 1e-5, about 30% of the planets orbit within 1 AU, whereas approximately 90% of them orbit beyond 1 AU when nu1 approximately 2e-5. Overall, planets within approximately 0.07 AU (periods less than approximately 7 days) are rare. Additionally, a large fraction of the total population resides inside of 1 AU. In our sample of the parameter space, we did not identify any radial region significantly devoid of planets. JF - American Geophysical Union Fall Meeting AU - Gorti, U AU - d'Angelo, G AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P21C EP - 1690 PB - American Geophysical Union, Washington, DC VL - 2011 KW - models KW - planets KW - viscosity KW - orbits KW - one-dimensional models KW - luminosity KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1676577924?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Self-consistent+models+of+orbital+migration+of+earths+and+super-earths&rft.au=Gorti%2C+U%3Bd%27Angelo%2C+G%3BAnonymous&rft.aulast=Gorti&rft.aufirst=U&rft.date=2011-12-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-30 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - luminosity; models; one-dimensional models; orbits; planets; viscosity ER - TY - JOUR T1 - Azimuthal structure of the sand erg that encircles the North Polar water-ice cap AN - 1676577762; 2015-036922 AB - The sand erg that completely encircles the perennial water-ice cap that covers the Martian north geographic pole displays considerable azimuthal structure as seen in visible and near-IR images. Much of this structure is associated with the terminations of the many steep troughs that cut spiral the approximately 3 km thick polar ice cap. Other contributions come from the katabatic winds that spill over steep-sided edges of the cap, such as what bounds the largest set of dunes that comprise Olympia Undae. During the spring and summer months when these winds initiate from the higher altitudes that contain sublimating CO2 ice, which is very cold and dry, heat adiabatically when they compress as they lose altitude. These winds should then remove H2O moisture from the uppermost layer of the sand dunes that are directly in their path. Two likely locations where this desiccation may occur preferentially is at the termination of Chasma Boreale and the ice cap at Olympia Undae. We will search for this effect by sharpening the spatial structure of the epithermal neutron counting rates measured at northern high latitudes using the Mars Odyssey Neutron Spectrometer (MONS). The epithermal range of neutron energies is nearly uniquely sensitive to the hydrogen content of surface soils, which should likely be in the form of H2O/OH molecules/radicals. We therefore convert epithermal counting rates in terms of Water-Equivalent-Hydrogen, WEH. However, MONS counting-rate data have a FWHM of approximately 550 km., which is sufficiently broad to prevent a close association of WEH variability with images of geological features. In this study, we reduce spurious features in the instrument smeared neutron counting rates through deconvolution. We choose the PIXON numerical deconvolution technique for this purpose. This technique uses a statistical approach (Pina 2001, Eke 2001), which is capable of removing spurious features in the data in the presence of noise. We have previously carried out a detailed study of the Martian polar regions applying such a methodology to Martian epithermal neutrons (e.g. Teodoro 2010, 2011). In the present study, we will apply this technique to the recent reanalysis of MONS epithermal data (Maurice et al., 2011), which is marked by significantly lower statistical and systematic uncertainties that have plagued older versions of these data. JF - American Geophysical Union Fall Meeting AU - Teodoro, L A AU - Elphic, R C AU - Eke, V R AU - Feldman, W C AU - Maurice, S AU - Pathare, A AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P23A EP - 1705 PB - American Geophysical Union, Washington, DC VL - 2011 KW - water KW - eolian features KW - sand KW - near-infrared spectra KW - clastic sediments KW - Chasma Boreale KW - Mars KW - ergs KW - ice caps KW - carbon dioxide KW - terrestrial planets KW - planets KW - Olympia Undae KW - ice KW - sediments KW - spectra KW - glacial geology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1676577762?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Azimuthal+structure+of+the+sand+erg+that+encircles+the+North+Polar+water-ice+cap&rft.au=Teodoro%2C+L+A%3BElphic%2C+R+C%3BEke%2C+V+R%3BFeldman%2C+W+C%3BMaurice%2C+S%3BPathare%2C+A%3BAnonymous&rft.aulast=Teodoro&rft.aufirst=L&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-30 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - carbon dioxide; Chasma Boreale; clastic sediments; eolian features; ergs; glacial geology; ice; ice caps; Mars; near-infrared spectra; Olympia Undae; planets; sand; sediments; spectra; terrestrial planets; water ER - TY - JOUR T1 - A self-consistent model of the growth of Jupiter's core AN - 1676577703; 2015-036874 AB - We report preliminary results of self-consistent calculations of the assembly of Jupiter's solid core by accretional collisions of planetesimals in the early Solar System. These calculations are performed by using a code that models the accreting solids and a planet formation code to model the core's envelope structure. The planetesimal accretion code simulates the growth of a seed body embedded in a swarm of planetesimals with sizes ranging from approximately 10 m to approximately 100 km. The code employs multiple zones at semi-major axes in the swarm and computes the collision rate for each zone as the swarm evolves and the seed body grows, becoming the protoplanetary core. Gravitational stirring due to the mutual interactions of the bodies in the swarm is included, although stirring by the core is usually dominant. Collisions among planetesimals, migration and velocity damping due to the drag of nebular gas are also included. The planet formation code simulates the thermodynamical structure and growth of the core's envelope. The code computes the trajectory and evolution of accreted planetesimals as they travel through the envelope and deposit mass and energy. The effective cross-section for planetesimal capture, as a function of the planetesimal size, is calculated and used in the planetesimal accretion code so that gas drag effects in the core's envelope are properly taken into account. The calculation of the opacity at each depth accounts for sedimentation and coagulation of dust and small grains which are released in the envelope by ablating planetesimals. Previous results imply that, if mutual collisions among planetesimals and gas drag are ignored, the isolation mass of the core is set by the restricted 3-body problem. For a surface density of 10 g/cm2 at Jupiter's orbital distance, the isolation mass is about 10 Earth masses and this typically is typically reached within 1 Myr. However, inclusion of collisional damping reduces eccentricities in the swarm, causing mass to pile up in zones adjacent to the core. This shepherding effect generally decreases the core's growth rate when about half the isolation mass is reached. Growth then continues at a slower rate, as planetesimals diffuse into the core's zone by collisions and gas drag. We find that gas drag in the core's envelope affects the cross-section for capture of planetesimals smaller than approximately 1 km, even when the envelope is very tenuous. Planetesimals with a radius of order 100 m and smaller, are entirely consumed in the envelope, providing a major source of dust and hence opacity. Support from NASA Outer Planets Research Program is gratefully acknowledged. JF - American Geophysical Union Fall Meeting AU - Hubickyj, O AU - Weidenschilling, S AU - Lissauer, J J AU - d'Angelo, G AU - Bodenheimer, P AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P21C EP - 1687 PB - American Geophysical Union, Washington, DC VL - 2011 KW - models KW - planets KW - accretion KW - density KW - Jupiter KW - outer planets KW - thermodynamic properties KW - planetesimals KW - cores KW - giant planets KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1676577703?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=A+self-consistent+model+of+the+growth+of+Jupiter%27s+core&rft.au=Hubickyj%2C+O%3BWeidenschilling%2C+S%3BLissauer%2C+J+J%3Bd%27Angelo%2C+G%3BBodenheimer%2C+P%3BAnonymous&rft.aulast=Hubickyj&rft.aufirst=O&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-30 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - accretion; cores; density; giant planets; Jupiter; models; outer planets; planetesimals; planets; thermodynamic properties ER - TY - JOUR T1 - Whence, whither, wherefore, oh lunar water? AN - 1673367783; 2015-034760 AB - Since it is an old question, we might borrow some queries from archaic English that certainly could apply appropriately to lunar water and volatiles: Whence: ...from what place or source? Whither: ...to what place or state? ...what is the likely future of? Wherefore: ...for what reason? ...result of which? The last two years have reversed long-held impressions about a dry Moon, albeit with many twists and unresolved questions. This is an area of very active research and necessarily involves many groups. Although the story continues, we summarize our current understanding (and lack thereof) from recent measurements and observations. Water, OH, and H are terms that are often grouped together for convenience, but do not really reflect the same chemistry or physical state on the Moon. In order of discovery (and continuing research), we now know that excessive H exists at the lunar poles, but occurs at lesser amounts across the surface, that water from the lunar interior is about as abundant as that in terrestrial MORB basalts, that widespread OH/H (sub 2) O exists as a thin layer across the surface of the Moon, and that buried forms (of ice?) occur in spotty concentrations near the poles. There are hints of whiffs of water in the lunar exosphere. Are any of these materials related, and if so how? How common are the processes responsible for the lunar occurrences in other parts of the solar system? The whence, whither, and wherefore as applied to lunar water issues are complex and involve team efforts to resolve. JF - American Geophysical Union Fall Meeting AU - Pieters, Carle M AU - McCord, T B AU - Saal, A E AU - Taylor, L A AU - Bussey, Ben AU - Elphic, Richard C AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P13H EP - 01 PB - American Geophysical Union, Washington, DC VL - 2011 KW - water KW - hydroxyl ion KW - Moon KW - ice KW - hydrogen KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673367783?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Whence%2C+whither%2C+wherefore%2C+oh+lunar+water%3F&rft.au=Pieters%2C+Carle+M%3BMcCord%2C+T+B%3BSaal%2C+A+E%3BTaylor%2C+L+A%3BBussey%2C+Ben%3BElphic%2C+Richard+C%3BAnonymous&rft.aulast=Pieters&rft.aufirst=Carle&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/P/sessions/P13H/abstracts/P13H-01.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - SuppNotes - Accessed on Oct. 27, 2014 N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - hydrogen; hydroxyl ion; ice; Moon; water ER - TY - JOUR T1 - Fractional crystallization of the lunar magma ocean AN - 1673367753; 2015-034774 AB - The current paradigm for solidification of the Moon after condensation is that of the crystallization and differentiation of a Lunar Magma Ocean (LMO) (super [1]) . In this model, the crystallization of the LMO gave rise to the plagioclase-rich ferroan anorthosite highlands crust, due to flotation of less dense plagioclase in the mafic magma ocean; and to mafic cumulates rich in olivine and pyroxene, which were later re-melted due to gravitational instability and mantle overturn to produce basaltic magmas such as mare basalts and picritic pyroclastic glasses. LMO crystallization also produced KREEP, which is thought to have later hybridized with the ascending basaltic magmas resulting in specific minor and trace element enrichments in seen in lunar basalts. KREEP is thought to represent the very last liquids in the magma ocean crystallization sequence, in which incompatible elements are concentrated. Numerical simulations have been used to determine the crystallization sequence of the LMO, the extent of fractional crystallization versus bulk crystallization (super [2]) , and the density profile of the resultant cumulate pile (super [3]) . However these models, on which a large portion of lunar research is predicated, remain largely untested experimentally. The Snyder model (super [2]) features crystal suspension in the magma ocean due to vigorous convection, and equilibrium crystallization for the majority of LMO crystallization followed by fractional crystallization of the residual magma ocean. This model has been tested experimentally (super [4]) , and found to produce a different cumulate assemblage from that predicted by Snyder. We are experimentally simulating fractional crystallization of the LMO from the outset of LMO solidification, as an alternate end-member model of lunar differentiation. We find that fractional crystallization of the lower portion of the LMO produces a divergence of residual liquid compositions from that of the equilibrium crystallization process (somewhat more orthopyroxene-normative). These differences are likely to be more pronounced as fractional crystallization proceeds, leading to concomitant differences in crystallizing assemblages including a lack of garnet in the lunar interior, which has implications for the potential thickness of the anorthosite crust. (super [1]) Wieczorek et. al; Shearer et. al. (2006) Rev. Mineral. and Geochem. 60. (super [2]) Snyder et. al. (1992) Geochim. Cosmochim. Acta 56, 3809-3823. (super [3]) Elkins-Tanton et. al. (2002) Earth Planet. Sci. Lett. 196, 239-249 (super [4]) Elardo et. al. (2011) Geochimica et Cosmochimica Acta 75:3024-3045. JF - American Geophysical Union Fall Meeting AU - Rapp, Jennifer F AU - Draper, David S AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P14A EP - 09 PB - American Geophysical Union, Washington, DC VL - 2011 KW - laboratory studies KW - magma oceans KW - KREEP KW - experimental studies KW - mineral composition KW - numerical models KW - Moon KW - magmas KW - fractional crystallization KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673367753?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Fractional+crystallization+of+the+lunar+magma+ocean&rft.au=Rapp%2C+Jennifer+F%3BDraper%2C+David+S%3BAnonymous&rft.aulast=Rapp&rft.aufirst=Jennifer&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/P/sessions/P14A/abstracts/P14A-09.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - Number of references - 4 N1 - PubXState - DC N1 - SuppNotes - Accessed on Oct. 30, 2014 N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - experimental studies; fractional crystallization; KREEP; laboratory studies; magma oceans; magmas; mineral composition; Moon; numerical models ER - TY - JOUR T1 - Distribution of hydrogen in the lunar polar regions AN - 1673367661; 2015-034740 AB - Recently the Lunar Exploration Neutron Detector (LEND) instrument onboard the NASA Lunar Reconnaissance Orbiter (LRO) provided data on the flux of epithermal neutrons in the Polar Regions showed that areas of low epithermal neutron flux, presumably due to high hydrogen content, were not closely related to the Permanently Shadowed Regions (PSRs) [1]. The areas which had suppressed epithermal neutron flux were referred to as Neutron Suppressed Regions (NSRs) to show a clear distinction from the PSRs. This work will first discuss the nature of the NSRs, and then discuss in more general terms the distribution of hydrogen and what that can tell us about processes acting in the Polar Regions. Mapping the NSRs: The raw LEND data from the collimated epithermal neutron sensors are processed to generate a records corrected for changes in sensor efficiency during warm-up and for times when one or more detectors may have been shut off. The neutrons are generated by interaction of cosmic rays with the surface, so the data have also been corrected for both short- and long-term cosmic ray variations in the cosmic ray flux. Maps of the epithermal neutron counting rates in the Polar Regions were made by binning the counts using HEALPix [2] bins of 1.7 km. The maps are smoothed by a box filter and the uncertainties associated with each bin are also calculated. Discussion: In our work, we found that there are two populations of hydrogen distribution in the polar areas. A plot of the histogram of number of bins vs. neutron flux shows a bimodal distribution with the low flux regions clearly distinguished from the non-suppressed flux in the other areas. We found that when the areas associated with the NSRs are removed, the remaining areas show a clear decrease in flux with decreasing distance to the pole showing a significant increase in hydrogen content. The two different populations of hydrogen distribution argue for at least two different processes being responsible. If the NSRs were associated with the PSRs, it would be clear that the cold surfaces in the PSRs were acting as cold traps for hydrogen, probably as water in some form. That not being the case, however, it is hard to imagine what could allow some PSRs to have high hydrogen content and others to have no significant enrichment at all. If the hydrogen rich areas were buried under a meter or more of hydrogen poor regolith, it would avoid detection via orbiting neutron sensors, but it is difficult to imagine how one PSR, like the Shoemaker Crater can have high hydrogen and a nearby one of comparable size show little or no enrichment of hydrogen. The enrichment of H in the non NSR areas is directly related to latitude and thus suggests surface temperature as a driving parameter for the enrichment. and argues for a process of migration of H. Water molecules will be released from the surfaces of grains at a rate controlled by temperature and this rate of migration will slow as the temperatures drop getting closer to the poles. References: [1] I.G. Mitrofanov, et al. (2010) Science, 330, 483-486. [2] Hierarchical Equal Area isoLatitude Pixelization, http://healpix.jpl.nasa.gov JF - American Geophysical Union Fall Meeting AU - Boynton, W V AU - Droege, G AU - Mitrofanov, I G AU - McClanahan, Timothy P AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P13D EP - 1735 PB - American Geophysical Union, Washington, DC VL - 2011 KW - water KW - polar regions KW - neutrons KW - Moon KW - hydrogen KW - statistical analysis KW - neutron suppressed regions KW - cosmic rays KW - histograms KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673367661?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=GeoLab%27s+first+field+trials%2C+2010+Desert+RATS%3B+evaluating+tools+for+early+sample+characterization&rft.au=Evans%2C+Cindy+A%3BBell%2C+Mary+S%3BCalaway%2C+Michael+J%3BGraff%2C+Trevor+G%3BYoung%2C+Kelsey+E%3BAnonymous&rft.aulast=Evans&rft.aufirst=Cindy&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/P/sessions/P13D/abstracts/P13D-1735.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - Number of references - 2 N1 - PubXState - DC N1 - SuppNotes - Accessed on Oct. 24, 2014 N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - cosmic rays; histograms; hydrogen; Moon; neutron suppressed regions; neutrons; polar regions; statistical analysis; water ER - TY - JOUR T1 - The composition of Saturn's rings and satellites from Cassini VIMS and UVIS AN - 1673367506; 2015-034779 AB - Spectra of the rings and icy satellites of Saturn from Cassini UVIS and VIMS, covering from approximately 0.1 to 5.1 microns show both expected and unusual properties. The spectra of all these objects are dominated by absorption and scattering by water-ice grains, variable amounts of a non-ice material that is strongly absorbing with a stronger UV absorption, small and variable amounts of CO (sub 2) and trace amounts of CH compounds, trapped H2, and possible trace NH compounds. The dark material seems to contain the trapped H (sub 2) , CO (sub 2) and NH compounds. Classical interpretations of the UV absorber and dark material are varying amounts of tholins and carbon. A newer interpretation is that the main spectral components are ice + nano-grains of metallic iron, and nano-hematite. Iron is an efficient H (sub 2) trap. Iron has the highest absorption coefficient we have found, approaching one million per cm at 0.25 microns. Nano-sized grains create both Rayleigh absorption and Rayleigh scattering producing the variable spectral signatures seen in the Saturn system. The large spectral range of combined UVIS + VIMS spectra provide strong constraints on composition and grain size distribution. Spectra of the rings and all icy satellites indicate a large range of ice grain sizes, from tens of microns to sub-micron. Sub-micron ice grains create unusual spectral properties, including decreased reflectance near 5-microns, decreased 3.1-micron Fresnel peak, decreased 2.6-micron reflectance, asymmetric to longer wavelength 2-micron absorption, reduced 1.5/2-micron ice band depth ratio, and enhanced reflectance at shorter wavelengths, all of which are seen in the spectra of the rings and satellites. In the blue/UV, spectra of the rings and satellites depart from that of ice because of the UV absorber. Some spectra of Saturn's rings are very similar to spectra of some locations on icy satellites, indicating common compounds are spectrally active from the rings to Iapetus. Sub-micron ice grains create Rayleigh scattering into the UV which competes with the UV absorber to create the various spectral shapes seen in the Saturn system. JF - American Geophysical Union Fall Meeting AU - Clark, R N AU - Bradley, E T AU - Hendrix, A R AU - Cuzzi, Jeffrey N AU - Cruikshank, Dale P AU - Filacchione, Gianrico AU - Pearson, N AU - Nicholson, P D AU - Hedman, M M AU - Brown, R H AU - Buratti, Bonnie J AU - Baines, K H AU - Sotin, Christophe AU - Livo, K E AU - Nelson, R AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P14B EP - 05 PB - American Geophysical Union, Washington, DC VL - 2011 KW - icy satellites KW - grain size KW - giant planets KW - Saturn KW - planets KW - planetary rings KW - Cassini-Huygens Mission KW - ice KW - ultraviolet spectra KW - spectra KW - outer planets KW - satellites KW - chemical composition KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673367506?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+composition+of+Saturn%27s+rings+and+satellites+from+Cassini+VIMS+and+UVIS&rft.au=Clark%2C+R+N%3BBradley%2C+E+T%3BHendrix%2C+A+R%3BCuzzi%2C+Jeffrey+N%3BCruikshank%2C+Dale+P%3BFilacchione%2C+Gianrico%3BPearson%2C+N%3BNicholson%2C+P+D%3BHedman%2C+M+M%3BBrown%2C+R+H%3BBuratti%2C+Bonnie+J%3BBaines%2C+K+H%3BSotin%2C+Christophe%3BLivo%2C+K+E%3BNelson%2C+R%3BAnonymous&rft.aulast=Clark&rft.aufirst=R&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/P/sessions/P14B/abstracts/P14B-05.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - SuppNotes - Accessed on Oct. 29, 2014 N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Cassini-Huygens Mission; chemical composition; giant planets; grain size; ice; icy satellites; outer planets; planetary rings; planets; satellites; Saturn; spectra; ultraviolet spectra ER - TY - JOUR T1 - Magnesium atoms in the exosphere above the volatile-rich persistently shadowed region of Cabeus AN - 1673366921; 2015-034733 AB - We discuss properties of the lunar exosphere based on analyses of UV-visual spectrometer (VSP) (260--650 nm) data collected from the 1-degree nadir field-of-view, which narrowed in on the persistently shadowed region (PSR) of Cabeus as the spacecraft descended towards the surface. The LCROSS Mission consisted of a approximately 2000 kg Centaur impactor and a shepherding spacecraft (S-SC) that impacted the Moon 4 minutes after the Centaur. The LCROSS VSP spectra of the nadir-view of Cabeus PSR spectra reveal a forest of UV emission lines. Most of these emission lines were previously predicted [1,2,3] but not yet measured because the Moon has yet to been investigated at these wavelengths at such close distance. In the LCROSS UV spectra, we have identified Mg I (285.2 nm) [4] and tentatively identified lines of Ca, Fe, Ti, and Al; most emission lines appear to be from neutral atoms, with a few possible singly-ionized species, fluorescing in sunlight from near their ground states. The temporal evolution of the lines, derived after subtracting a solar reference spectrum scaled to the scattered light continuum, probe the altitude-dependence of exosphere species. Only a few species appear transient, such as the Na D lines that were released by impact [5] and expelled quickly to high altitudes (45 km, [6]). We are working to derive the column densities of the various species, with particular emphasis on MgI, by application of a fluorescence model. Some of the work involves careful re-calibration of the VSP at wavelengths shortward of 380 nm. We will report and compare the column density of magnesium over Cabeus PSR to the column density expected from exosphere models. Sputtering of materials from the floor of Cabeus may be enhanced because of the particular geometry of the solar wind flowing over polar craters acts to deflect passing ions into the polar craters and enhance sputtering rates [7, 8]. Studying the lunar exosphere can tell us generally about volatile transport processes. These data stimulate interest in the comparison of exosphere observations by LRO LAMP in its polar-orbit versus the near-equatorial orbit of the future LADEE UVS. [1] Morgan T. H. and Killen R. M. (1997) Planet. Space Sci. 45, 81-94. [2] Sarantos M. et al. (2010) LEAG LPI Contrib. No. 1595, p. 62 [3] Killen, R. M. et al. (2010) AGU Abstract #P42A-04 [4] Wooden, D. H. et al. (2011) Wet vs Dry Moon, Abstract 6067. (http://www.lpi.usra.edu/meetings/volatiles2011/pdf/6067.pdf) [5] Colaprete A. et al. (2010) Science, 330, 463-468 [6] Killen, R. M. et al. (2010) Geophys. Res. Lett., 37, Issue 23, CiteID L23201 [7] Farrell, W. M. et al. (2011) Wet vs Dry Moon, Abstract 6015. (http://www.lpi.usra.edu/meetings/volatiles2011/pdf/6015.pdf) [8] Farrell W. M. et al. (2010), J. Geophys. Res. 115, E03004 JF - American Geophysical Union Fall Meeting AU - Wooden, D H AU - Colaprete, A AU - Heldmann, J L AU - Retherford, K D AU - Hurley, Dana M AU - Elphic, Richard C AU - Ennico, Kimberly AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P13D EP - 1727 PB - American Geophysical Union, Washington, DC VL - 2011 KW - Lunar Crater Observation and Sensing Satellite KW - alkaline earth metals KW - magnesium KW - Moon KW - Cabeus Crater KW - exosphere KW - volatiles KW - craters KW - transport KW - metals KW - ultraviolet spectra KW - spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673366921?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Magnesium+atoms+in+the+exosphere+above+the+volatile-rich+persistently+shadowed+region+of+Cabeus&rft.au=Wooden%2C+D+H%3BColaprete%2C+A%3BHeldmann%2C+J+L%3BRetherford%2C+K+D%3BHurley%2C+Dana+M%3BElphic%2C+Richard+C%3BEnnico%2C+Kimberly%3BAnonymous&rft.aulast=Wooden&rft.aufirst=D&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/P/sessions/P13D/abstracts/P13D-1727.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - Number of references - 8 N1 - PubXState - DC N1 - SuppNotes - Accessed on Oct. 24, 2014 N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Cabeus Crater; craters; exosphere; Lunar Crater Observation and Sensing Satellite; magnesium; metals; Moon; spectra; transport; ultraviolet spectra; volatiles ER - TY - JOUR T1 - The use of data from two major lunar neutron campaigns (Apollo 17 and Lunar Prospector) as a benchmark for the Lunar Exploration Neutron Detector (LEND, on board LRO spacecraft) AN - 1673366889; 2015-034742 AB - The Apollo 17 Lunar Neutron Probe Experiment (LPNE, 1972) has opened an era of the neutron probing technique in studying the elemental composition and its stratification in lunar soil bombarded by Galactic Cosmic Rays. The unique in situ measurements provided a guideline for the next generation neutron experiments based on remote sensing from the orbit of Lunar Prospector around the Moon (LPNS,1998-1999). Current lunar neutron studies from LEND, on board LRO, constitute the next step in remote sensing by adding higher spatial resolution (for epithermal range of neutron energies) over Lunar surface and allowing us to "look" inside permanently shaded craters in a search of frozen water. This is why it is important to cross calibrate neutron detecting capabilities of these Lunar neutron campaigns and facilitate the creation of unique data set encompassing in situ and remote sensing. JF - American Geophysical Union Fall Meeting AU - Nandikotkur, G AU - Sagdeev, R Z AU - Usikov, D AU - Milikh, G M AU - Chin, Gordon AU - McClanahan, Timothy P AU - Starr, Richard D AU - Evans, Larry G AU - Boynton, W V AU - Harshman, Karl AU - Droege, G AU - Mitrofanov, I G AU - Litvak, Max L AU - Sanin, A AU - Golovin, D AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P13D EP - 1737 PB - American Geophysical Union, Washington, DC VL - 2011 KW - water KW - neutron methods KW - craters KW - Moon KW - Lunar Reconnaissance Orbiter KW - Lunar Prospector Program KW - Lunar Exploration Neutron Detector KW - Apollo Program KW - regolith KW - Apollo 17 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673366889?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+use+of+data+from+two+major+lunar+neutron+campaigns+%28Apollo+17+and+Lunar+Prospector%29+as+a+benchmark+for+the+Lunar+Exploration+Neutron+Detector+%28LEND%2C+on+board+LRO+spacecraft%29&rft.au=Nandikotkur%2C+G%3BSagdeev%2C+R+Z%3BUsikov%2C+D%3BMilikh%2C+G+M%3BChin%2C+Gordon%3BMcClanahan%2C+Timothy+P%3BStarr%2C+Richard+D%3BEvans%2C+Larry+G%3BBoynton%2C+W+V%3BHarshman%2C+Karl%3BDroege%2C+G%3BMitrofanov%2C+I+G%3BLitvak%2C+Max+L%3BSanin%2C+A%3BGolovin%2C+D%3BAnonymous&rft.aulast=Nandikotkur&rft.aufirst=G&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/P/sessions/P13D/abstracts/P13D-1737.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - SuppNotes - Accessed on Oct. 24, 2014 N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Apollo 17; Apollo Program; craters; Lunar Exploration Neutron Detector; Lunar Prospector Program; Lunar Reconnaissance Orbiter; Moon; neutron methods; regolith; water ER - TY - JOUR T1 - Stabilizing the early Martian climate; effects of airborne dust, CO (sub 2) ice cap albedo, and orbital obliquity on atmospheric collapse AN - 1673366229; 2015-034789 AB - The stability of the early Martian atmosphere against collapse into permanent surface CO (sub 2) ice reservoirs is fundamentally important for understanding the evolution of Mars' atmosphere and surface throughout its history. A clear, thick ( approximately 80 mb) CO (sub 2) atmosphere early in Mars' history is not stable against collapse in the presence of a faint young sun. However, an active dust cycle may provide a mechanism to stave off atmospheric collapse by directly affecting the thermal and dynamical state of the atmosphere and by modifying the albedo of the polar ice caps. The goal of this work is to develop an understanding of the importance of the dust cycle in determining the stability of early Martian atmospheres. The NASA Ames Mars General Circulation Model (MGCM) is used to explore the effects of atmospheric dust loading, polar cap albedo, and orbital obliquity on atmospheric collapse. Results of this parameter study indicate that 80 mbar CO (sub 2) atmospheres are difficult to maintain, especially in the presence of a faint young sun. Of the 36 simulations conducted, only 6 predicted a stable atmosphere (i.e., did not lead to the formation of permanent CO (sub 2) ice caps). Increasing the albedo of the polar CO (sub 2) ice cap accelerates atmospheric collapse at all dust loadings and obliquities. The energy absorbed by the surface during local spring decreases as albedo increases, making it more difficult for the seasonal CO (sub 2) ice to completely sublimate each year. If any CO (sub 2) ice survives through the summer season, permanent CO (sub 2) caps form and the atmosphere collapses. Increasing the orbital obliquity increases atmospheric stability. All but two of the stable cases were at the highest obliquity (i.e., 60 degrees ). The annually averaged insolation received at the poles increases as obliquity increases. This increased energy delivered to the poles works to stave off atmospheric collapse. Increasing atmospheric dust loading does not have a monotonic effect on the stability of the atmosphere. At all obliquities, when the CO (sub 2) ice cap albedo is at or below approximately 0.5, increasing atmospheric dust accelerates atmospheric collapse. Conversely, when the CO (sub 2) ice cap albedo is above 0.5, increasing atmospheric dust decelerates atmospheric collapse. Understanding these effects through the analysis of atmosphere/surface energy balance and heat transport is a primary focus of the work presented. JF - American Geophysical Union Fall Meeting AU - Kahre, M AU - Vines, S AU - Haberle, Robert M AU - Hollingsworth, Jeffrey AU - Leovy, C B AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P21A EP - 1656 PB - American Geophysical Union, Washington, DC VL - 2011 KW - albedo KW - general circulation models KW - obliquity of the ecliptic KW - numerical models KW - clastic sediments KW - Mars General Circulation Model KW - atmosphere KW - Mars KW - paleoclimatology KW - energy balance KW - polar caps KW - carbon dioxide KW - terrestrial planets KW - planets KW - ice KW - dust KW - sediments KW - heat transfer KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673366229?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Stabilizing+the+early+Martian+climate%3B+effects+of+airborne+dust%2C+CO+%28sub+2%29+ice+cap+albedo%2C+and+orbital+obliquity+on+atmospheric+collapse&rft.au=Kahre%2C+M%3BVines%2C+S%3BHaberle%2C+Robert+M%3BHollingsworth%2C+Jeffrey%3BLeovy%2C+C+B%3BAnonymous&rft.aulast=Kahre&rft.aufirst=M&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/P/sessions/P21A/abstracts/P21A-1656.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - SuppNotes - Accessed on Oct. 29, 2014 N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - albedo; atmosphere; carbon dioxide; clastic sediments; dust; energy balance; general circulation models; heat transfer; ice; Mars; Mars General Circulation Model; numerical models; obliquity of the ecliptic; paleoclimatology; planets; polar caps; sediments; terrestrial planets ER - TY - JOUR T1 - Elemental mercury diffusion processes and concentration at the lunar poles AN - 1673366162; 2015-034732 AB - In 2009, the Lyman Alpha Mapping Project (LAMP) spectrograph onboard the Lunar Reconnaissance Orbiter (LRO) spacecraft made the first detection of element mercury (Hg) vapor in the lunar exosphere after the Lunar Crater Observing and Sensing Satellite (LCROSS) Centaur rocket impacted into the Cabeus crater in the southern polar region of the Moon. The lunar regolith core samples from the Apollo missions determined that Hg had a devolatilized pattern with a concentration gradient increasing with depth, in addition to a layered pattern suggesting multiple episodes of burial and volatile loss. Hg migration on the lunar surface resulted in cold trapping at the poles. We have modeled the rate at which indigenous Hg is lost from the regolith through diffusion out of lunar grains. We secondly modeled the migration of Hg vapor in the exosphere and estimated the rate of cold-trapping at the poles using a Monte Carlo technique. The Hg vapor may be lost from the exosphere via ionization, Jeans escape, or re-impact into the surface causing reabsorption. JF - American Geophysical Union Fall Meeting AU - Moxley, F I AU - Killen, Rosemary M AU - Hurley, Dana M AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P13D EP - 1726 PB - American Geophysical Union, Washington, DC VL - 2011 KW - polar regions KW - diffusion KW - numerical models KW - Moon KW - Lunar Reconnaissance Orbiter KW - Monte Carlo analysis KW - statistical analysis KW - rates KW - Apollo Program KW - exosphere KW - metals KW - regolith KW - mercury KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673366162?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Elemental+mercury+diffusion+processes+and+concentration+at+the+lunar+poles&rft.au=Moxley%2C+F+I%3BKillen%2C+Rosemary+M%3BHurley%2C+Dana+M%3BAnonymous&rft.aulast=Moxley&rft.aufirst=F&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/P/sessions/P13D/abstracts/P13D-1726.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - SuppNotes - Accessed on Oct. 24, 2014 N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Apollo Program; diffusion; exosphere; Lunar Reconnaissance Orbiter; mercury; metals; Monte Carlo analysis; Moon; numerical models; polar regions; rates; regolith; statistical analysis ER - TY - JOUR T1 - Insolation effects on lunar hydrogen; correlated observations of LEND and second order insolation effects derived from LOLA modeling AN - 1673366144; 2015-034741 AB - The Moon's polar permanent shadow regions (PSR) have long been considered the unique repository for volatile Hydrogen (H). This postulate was due to the extreme and persistently cold environment that has been maintained over eons of lunar history. However, we have recently reported two results that have challenged the PSR hypothesis. 1) that higher lunar H distributions are only weakly correlated to the PSR condition. 2) We suggest a relationship between higher H in the context of pole-facing slopes relative to equator facing slopes. Correlated observations by the Lunar Exploration Neutron Detector (LEND) onboard the Lunar Reconnaissance Orbiter (LRO) and the Lunar Orbiting Laser Altimeter (LOLA) have been performed indicating pole-facing slopes have 0.01 to 0.02 cps lower epithermal count rates than their equivalent equator-facing slopes. These bulk observations were hypothesis tested and indicate a significant and consistent relationship between topographically modulated insolation effects derived from specialized transformations of LOLA digital elevation models (DEM)'s and LEND maps for latitudes > 60 deg latitude. In this presentation we review the techniques and results from the recent high latitude analysis and apply similar techniques to equatorial regions. We also compare results to second order modeling results derived from long-term LOLA numerical modeling of insolation conditions on the Moon. Results from our low latitude analysis will be reported. We discuss interpretations and implications for Lunar Hydrogen studies. JF - American Geophysical Union Fall Meeting AU - McClanahan, Timothy P AU - Mazarico, Erwan AU - Droege, G AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P13D EP - 1736 PB - American Geophysical Union, Washington, DC VL - 2011 KW - polar regions KW - numerical models KW - neutron methods KW - laser methods KW - Moon KW - Lunar Reconnaissance Orbiter KW - Lunar Exploration Neutron Detector KW - digital terrain models KW - hydrogen KW - permanently shadowed regions KW - insolation KW - Lunar Orbiting Laser Altimeter KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673366144?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Insolation+effects+on+lunar+hydrogen%3B+correlated+observations+of+LEND+and+second+order+insolation+effects+derived+from+LOLA+modeling&rft.au=McClanahan%2C+Timothy+P%3BMazarico%2C+Erwan%3BDroege%2C+G%3BAnonymous&rft.aulast=McClanahan&rft.aufirst=Timothy&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/P/sessions/P13D/abstracts/P13D-1736.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - SuppNotes - Accessed on Oct. 24, 2014 N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - digital terrain models; hydrogen; insolation; laser methods; Lunar Exploration Neutron Detector; Lunar Orbiting Laser Altimeter; Lunar Reconnaissance Orbiter; Moon; neutron methods; numerical models; permanently shadowed regions; polar regions ER - TY - JOUR T1 - Effect on the lunar exosphere of a CME passage AN - 1673365734; 2015-034731 AB - It has long been recognized that solar wind bombardment onto exposed surfaces in the solar system will produce an energetic component to the exospheres about those bodies. Laboratory experiments have shown that the sputter yield can be noticeably increased in the case of a good insulating surface. It is now known that the solar wind composition is highly dependent on the origin of the particular plasma. Using the measured composition of the slow wind, fast wind, solar energetic particle (SEP) population, and coronal mass ejection (CME), broken down into its various components, we have estimated the total sputter yield for each type of solar wind. The heavy ion component, especially the He++ component, greatly enhances the total sputter yield during times when the heavy ion population is enhanced, most notably during a coronal mass ejection. To simulate the effect on the lunar exosphere of a CME passage past the Moon, we ran a Monte Carlo code for the species Na, K, Mg and Ca. JF - American Geophysical Union Fall Meeting AU - Killen, Rosemary M AU - Hurley, Dana M AU - Farrell, William M AU - Sarantos, Menelaos AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P13D EP - 1725 PB - American Geophysical Union, Washington, DC VL - 2011 KW - calcium KW - alkaline earth metals KW - magnesium KW - Moon KW - Monte Carlo analysis KW - statistical analysis KW - solar wind KW - alkali metals KW - sodium KW - exosphere KW - noble gases KW - metals KW - potassium KW - helium KW - coronal mass ejection KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673365734?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Effect+on+the+lunar+exosphere+of+a+CME+passage&rft.au=Killen%2C+Rosemary+M%3BHurley%2C+Dana+M%3BFarrell%2C+William+M%3BSarantos%2C+Menelaos%3BAnonymous&rft.aulast=Killen&rft.aufirst=Rosemary&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/P/sessions/P13D/abstracts/P13D-1725.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - SuppNotes - Accessed on Oct. 24, 2014 N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - alkali metals; alkaline earth metals; calcium; coronal mass ejection; exosphere; helium; magnesium; metals; Monte Carlo analysis; Moon; noble gases; potassium; sodium; solar wind; statistical analysis ER - TY - JOUR T1 - A high-amplitude thermal inertia anomalies of probable magnetospheric origin in the Saturnian system AN - 1673365376; 2015-034775 AB - In 2010 a thermal anomaly was discovered on Mimas' surface using Cassini Composite Infrared Spetrometer (CIRS) data. Spectral maps of Mimas' daytime thermal emission show a sharp V-shaped boundary, with an apex centered at 0 degrees N and 180 degrees W, separating relatively warm daytime temperatures from a cooler anomalous region occupying low- to mid-latitudes on the leading hemisphere. Since this discovery new CIRS observations have been made of this region, increasing both the local time and longitude coverage of the area. The local time coverage now provided by the CIRS data set is sufficient to constrain the thermal surface property variation across this region. October 2010 observations show that the anomalous region is warmer than its surroundings at night, indicating that its thermal inertia is much higher than its surroundings: 66+ or -23 Jm (super -2) K (super -1) s (super 1/2) , compared to <16 Jm (super -2) K (super -1) s (super 1/2) outside the anomaly. Bolometric Bond albedos are similar between the two regions, in the range 0.49 - 0.70. The additional longitude coverage provided by new observations taken in January 2011 show that the anomalous region is centered on Mimas' leading hemisphere (and not around Herschel crater as previously postulated), pointing to an exogenous production mechanism. The mapped portion of the thermally anomalous region coincides in shape and location to a region of high-energy electron deposition from Saturn's magnetosphere, which also has unusually high near-UV reflectance (Schenk et al., 2011). A similar thermal anomaly tentatively detected on Tethys' leading hemisphere, includes a region that also undergoes high-energy electron bombardment and has high near-UV reflectance (Schenk et al., 2011). Therefore, high-energy electrons, which penetrate both Mimas' and Tethys' surface to the centimeter depths probed by diurnal temperature variations, also likely alter the surface texture and dramatically increase its thermal inertia. References Schenk, P., Hamilton, D., Johnson, R. McKinnon, W.B., Paranicas, C., Schmidt, J., Showalter, M., 2011. Plasma, plumes and rings: Saturn system dynamics as recorded in global color patterns on its midsize icy satellites. Icarus 211, 740-757. JF - American Geophysical Union Fall Meeting AU - Howett, C J AU - Spencer, J R AU - Schenk, P AU - Johnson, R E AU - Paranicas, Chris AU - Hurford, T A AU - Verbiscer, A J AU - Segura, Marcia AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract P14B EP - 01 PB - American Geophysical Union, Washington, DC VL - 2011 KW - Tethys KW - icy satellites KW - Cassini-Huygens Mission KW - thermal inertia KW - thermal anomalies KW - magnetosphere KW - thermal emission KW - satellites KW - Mimas Satellite KW - electrons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673365376?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=A+high-amplitude+thermal+inertia+anomalies+of+probable+magnetospheric+origin+in+the+Saturnian+system&rft.au=Howett%2C+C+J%3BSpencer%2C+J+R%3BSchenk%2C+P%3BJohnson%2C+R+E%3BParanicas%2C+Chris%3BHurford%2C+T+A%3BVerbiscer%2C+A+J%3BSegura%2C+Marcia%3BAnonymous&rft.aulast=Howett&rft.aufirst=C&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/P/sessions/P14B/abstracts/P14B-01.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - Number of references - 1 N1 - PubXState - DC N1 - SuppNotes - Accessed on Oct. 30, 2014 N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Cassini-Huygens Mission; electrons; icy satellites; magnetosphere; Mimas Satellite; satellites; Tethys; thermal anomalies; thermal emission; thermal inertia ER - TY - JOUR T1 - Water in the balance; changing freshwater availability as viewed from space AN - 1668231295; 2015-030550 AB - Over the last decade, satellite observations of Earth's water cycle, in particular, those from NASA's GRACE (Gravity Recovery and Climate Experiment) mission, have provided an unprecedented view of recent changes in freshwater availability. In particular, the human fingerprint of water management practices such as groundwater use and reservoir storage is abundantly clear, and raises many important issues for climate, water, food and economic security. Moreover, the worldwide depletion of groundwater aquifers and their transboundary nature points to the great potential heightened conflict in the very near future. In this talk we review the basics of how the GRACE mission observes world water resources, what new information the mission has provided since its launch in 2002, and what the implications are for the future of water availability. Several hotspots for water stress, including implications for regional security and conflict, will be highlighted. JF - American Geophysical Union Fall Meeting AU - Famiglietti, J S AU - Rodell, M AU - Voss, K AU - Swenson, S C AU - Chambers, D P AU - Lo, M AU - Reager, J T AU - Ho, S AU - De Linage, C AU - Matthew, R AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract PA33A EP - 1818 PB - American Geophysical Union, Washington, DC VL - 2011 KW - protection KW - water supply KW - regional planning KW - water management KW - international cooperation KW - GRACE KW - fresh water KW - global change KW - transboundary river basins KW - satellite methods KW - visualization KW - habitat KW - hydrologic cycle KW - regional KW - drainage basins KW - policy KW - water resources KW - land use KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1668231295?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Water+in+the+balance%3B+changing+freshwater+availability+as+viewed+from+space&rft.au=Famiglietti%2C+J+S%3BRodell%2C+M%3BVoss%2C+K%3BSwenson%2C+S+C%3BChambers%2C+D+P%3BLo%2C+M%3BReager%2C+J+T%3BHo%2C+S%3BDe+Linage%2C+C%3BMatthew%2C+R%3BAnonymous&rft.aulast=Famiglietti&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/PA/sessions/PA33A/abstracts/PA33A-1818 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-02 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - drainage basins; fresh water; global change; GRACE; habitat; hydrologic cycle; international cooperation; land use; policy; protection; regional; regional planning; satellite methods; transboundary river basins; visualization; water management; water resources; water supply ER - TY - JOUR T1 - Understanding the contribution of glacier and snowmelt in the Himalaya using a spatially-distributed energy balance model and remotely sensed data; implications for water security in the Himalayas AN - 1664439237; 2015-024808 AB - Snow and ice constitute an important component of the hydrologic regime of many large mountain ranges and regions, including the Himalayas. However, the hydrologic regime of Himalayan catchment basins, and the role of glaciers in the hydrologic regime of this mountain range (particularly their contribution to base flow) are not well understood. There are concerns about the impact of climate change on cryosphere as well as population growth, changing economic activity, land use change, rapid urbanization and inefficient water use on water resources. The HIMALA project, funded by the NASA's Applied Sciences Program and the United States Agency for International Development (USAID), in collaboration with the Integrated Center for Integrated Mountain Development (ICIMOD), Nepal, addresses the urgent need for integrated snow and ice hydrology in the Himalaya. Specific objectives are to: (i) introduce the use of NASA Earth Science products and models to ICIMOD and its member countries through collaboration with USAID and USGS and (ii) enhance the decision making capacity of ICIMOD and its member countries for management of water resources (floods, agricultural water) in the short (snow, rainfall) and the long-term (glaciers). Here we present methodology and preliminary results for a sub-basin hydrological model for Langtang watershed in Nepal, that includes modeling both snow and glacier-melt water contributions to streamflow. Snow- and glacier-melt and outflow is estimated using a spatially distributed version of the Utah Energy Balance (UEB) snow accumulation and ablation model, driven by remotely sensed data (TRMM) downscaled model data (MERRA) and meteorological data. Glacier outlines and glacier characterization parameters (albedo and volume) are derived from Landsat (1980s to present) and ASTER data (2000 to present) and used as input to the UEB model. Snow cover and albedo are acquired from MODIS data. We estimate the relative contribution by snow and glacier melt to total melt, which is validated using discharge at various gauge stations in the watersheds. We use the Geospatial Stream Flow Model (GeoSFM) hydrologic model to simulate dynamics of runoff processes. Static input data are SRTM DEM, land cover, and soil information. The model is forced by daily estimates of precipitation and evapotranspiration to predict daily streamflow at ground rain gauge stations. We are developing new user interfaces so that models will be easy to learn and can be used to monitor streamflow in other basins in the region. ICIMOD will implement the prototype model in three large basins of the Himalaya (Koshi, Manas and Jhelum) ranging from east to west. This will provide a better understanding of the contribution of snow and ice to hydrology in the region with relation to the Asian monsoon. JF - American Geophysical Union Fall Meeting AU - Brown, M E AU - Racoviteanu, A AU - Tarboton, D G AU - Bajracharya, S AU - Artan, G AU - Shrestha, M AU - Policelli, F AU - Habib, S AU - Ouyang, H AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract GC21D EP - 04 PB - American Geophysical Union, Washington, DC VL - 2011 KW - digital terrain models KW - urbanization KW - energy balance KW - Nepal KW - monsoons KW - Earth Observing System KW - Indian Peninsula KW - ice KW - snow KW - drainage basins KW - Himalayas KW - ASTER instrument KW - Asia KW - hydrology KW - monitoring KW - snowmelt KW - base flow KW - glaciers KW - models KW - streamflow KW - water resources KW - land use KW - remote sensing KW - MODIS KW - meltwater KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1664439237?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Understanding+the+contribution+of+glacier+and+snowmelt+in+the+Himalaya+using+a+spatially-distributed+energy+balance+model+and+remotely+sensed+data%3B+implications+for+water+security+in+the+Himalayas&rft.au=Brown%2C+M+E%3BRacoviteanu%2C+A%3BTarboton%2C+D+G%3BBajracharya%2C+S%3BArtan%2C+G%3BShrestha%2C+M%3BPolicelli%2C+F%3BHabib%2C+S%3BOuyang%2C+H%3BAnonymous&rft.aulast=Brown&rft.aufirst=M&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/GC/sessions/GC21D/abstracts/GC21D-04.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-03-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Asia; ASTER instrument; base flow; digital terrain models; drainage basins; Earth Observing System; energy balance; glaciers; Himalayas; hydrology; ice; Indian Peninsula; land use; meltwater; models; MODIS; monitoring; monsoons; Nepal; remote sensing; snow; snowmelt; streamflow; urbanization; water resources ER - TY - JOUR T1 - Monitoring global freshwater resources with GRACE AN - 1664436553; 2015-024807 AB - Freshwater resources include surface waters, groundwater, and seasonal snowpack. Given adequate ground based measurements, all of these can be monitored effectively, however, outside of the developed world such measurements often are not systematic and the data not centralized, and as a result reports of freshwater availability may be largely anecdotal. Even in the developed world it can be difficult to quantify changes in groundwater storage over large scales. Owing to its global coverage, satellite remote sensing has become a valuable tool for freshwater resources assessment. In particular, the Gravity Recovery and Climate Experiment (GRACE) has demonstrated an unequaled ability to monitor total terrestrial water storage including groundwater at regional to continental scales. In this presentation we will identify apparent trends in terrestrial water storage observed by GRACE over the past nine years and attempt to explain their origins and predict whether they are likely to continue. Trends in certain regions where groundwater extraction has significantly depleted aquifers, including northern India and California's Central Valley, will be discussed in detail. JF - American Geophysical Union Fall Meeting AU - Rodell, M AU - Famiglietti, J S AU - Velicogna, I AU - Swenson, S C AU - Chambers, D P AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract GC21D EP - 02 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - hydrology KW - water quality KW - monitoring KW - global KW - water management KW - GRACE KW - fresh water KW - satellite methods KW - ground water KW - aquifers KW - Central Valley KW - California KW - hydrologic cycle KW - regional KW - water resources KW - remote sensing KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1664436553?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Monitoring+global+freshwater+resources+with+GRACE&rft.au=Rodell%2C+M%3BFamiglietti%2C+J+S%3BVelicogna%2C+I%3BSwenson%2C+S+C%3BChambers%2C+D+P%3BAnonymous&rft.aulast=Rodell&rft.aufirst=M&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/GC/sessions/GC21D/abstracts/GC21D-02.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-03-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - aquifers; California; Central Valley; fresh water; global; GRACE; ground water; hydrologic cycle; hydrology; monitoring; regional; remote sensing; satellite methods; United States; water management; water quality; water resources ER - TY - JOUR T1 - Rainfall thresholds for the initiation of landslides in central Italy using remote sensing precipitation data AN - 1660630827; 2015-020512 AB - We used remote sensing data to define new rainfall thresholds for the possible occurrence of landslides in Marche and Umbria regions, central Italy. Remote sensing data are provided by NASA and the estimated rainfall is cumulated every three hours in a regular grid of 0.25 degrees X 0.25 degrees . We exploited a catalog of temporal and spatial information on landslides triggered by rainfall in the study area in the period 2002-2010. For each slope failure in the catalog, we calculated the cumulated rainfall E (mm) and the duration D (h) of each rainfall event that triggered one or more landslide, using both remote sensing data and measurements obtained from a rain-gauge network. The rain-gauge network in the study area includes 123 stations and the rainfall is cumulated every hour. Finally, we obtained two data sets of empirical rainfall conditions (D, E) that triggered landslides and we defined the corresponding rainfall thresholds for remote sensing data and for rain gauge data. We used a Frequentist method and assumed that the threshold curve is a power law E = alpha X D (super gamma ) , where alpha is a scaling constant (the intercept) and gamma is the shape parameter that defines the slope of the power law curve. This method allows to define rainfall threshold corresponding to different exceedance probabilities. We observed that the threshold for remote sensing data is permanently lower than the threshold obtained with rain-gauge measurements. Finally, we found a relationship between the two thresholds. This is important because it permits the use of sensing precipitation data to obtain rainfall thresholds for the possible occurrence of landslides in those areas where rain gauge measurements are insufficient, or inexistent. JF - American Geophysical Union Fall Meeting AU - Luciani, S AU - Brunetti, M AU - Peruccacci, S AU - Rossi, M AU - Valigi, D AU - Kirschbaum, D B AU - Guzzetti, F AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract NH13E EP - 1409 PB - American Geophysical Union, Washington, DC VL - 2011 KW - hydrology KW - gauging KW - failures KW - geologic hazards KW - rainfall KW - damage KW - prediction KW - central Italy KW - Europe KW - atmospheric precipitation KW - Marches Italy KW - Italy KW - Southern Europe KW - models KW - landslides KW - mass movements KW - natural hazards KW - Umbria Italy KW - slope stability KW - land use KW - remote sensing KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1660630827?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Rainfall+thresholds+for+the+initiation+of+landslides+in+central+Italy+using+remote+sensing+precipitation+data&rft.au=Luciani%2C+S%3BBrunetti%2C+M%3BPeruccacci%2C+S%3BRossi%2C+M%3BValigi%2C+D%3BKirschbaum%2C+D+B%3BGuzzetti%2C+F%3BAnonymous&rft.aulast=Luciani&rft.aufirst=S&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/NH/sessions/NH13E/abstracts/NH13E-1409.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-03-05 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; central Italy; damage; Europe; failures; gauging; geologic hazards; hydrology; Italy; land use; landslides; Marches Italy; mass movements; models; natural hazards; prediction; rainfall; remote sensing; slope stability; Southern Europe; Umbria Italy ER - TY - JOUR T1 - Regional assessment of storm-triggered shall landslide risks using the SLIDE (SLope-infiltration-distributed equilibrium) model AN - 1660630385; 2015-020514 AB - The key to advancing the predictability of rainfall-triggered landslides is to use physically based slope-stability models that simulate the dynamical response of the subsurface moisture to spatiotemporal variability of rainfall in complex terrains. An early warning system applying such physical models has been developed to predict rainfall-induced shallow landslides over Java Island in Indonesia and Honduras. The prototyped early warning system integrates three major components: (1) a susceptibility mapping or hotspot identification component based on a land surface geospatial database (topographical information, maps of soil properties, and local landslide inventory etc.); (2) a satellite-based precipitation monitoring system (http://trmm.gsfc.nasa.gov) and a precipitation forecasting model (i.e. Weather Research Forecast); and (3) a physically-based, rainfall-induced landslide prediction model SLIDE (SLope-Infiltration-Distributed Equilibrium). The system utilizes the modified physical model to calculate a Factor of Safety (FS) that accounts for the contribution of rainfall infiltration and partial saturation to the shear strength of the soil in topographically complex terrains. The system's prediction performance has been evaluated using a local landslide inventory. In Java Island, Indonesia, evaluation of SLIDE modeling results by local news reports shows that the system successfully predicted landslides in correspondence to the time of occurrence of the real landslide events. Further study of SLIDE is implemented in Honduras where Hurricane Mitch triggered widespread landslides in 1998. Results shows within the approximately 1,200 square kilometers study areas, the values of hit rates reached as high as 78% and 75%, while the error indices were 35% and 49%. Despite positive model performance, the SLIDE model is limited in the early warning system by several assumptions including, using general parameter calibration rather than in situ tests and neglecting geologic information. Advantages and limitations of this model will be discussed with respect to future applications of landslide assessment and prediction over large scales. In conclusion, integration of spatially distributed remote sensing precipitation products and in-situ datasets and physical models in this prototype system enable us to further develop a regional early warning tool in the future for forecasting storm-induced landslides. JF - American Geophysical Union Fall Meeting AU - Hong, Y AU - Kirschbaum, D B AU - Fukuoka, H AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract NH13E EP - 1411 PB - American Geophysical Union, Washington, DC VL - 2011 KW - early warning systems KW - data processing KW - debris flows KW - SLIDE model KW - mitigation KW - warning systems KW - dynamics KW - Honduras KW - mass movements KW - data bases KW - storms KW - hydrology KW - in situ KW - rainfall KW - human activity KW - Hurricane Mitch KW - damage KW - SLope-infiltration-distributed equilibrium model KW - prediction KW - cyclones KW - landslides KW - regional KW - infiltration KW - runoff KW - risk assessment KW - slope stability KW - Central America KW - hurricanes KW - remote sensing KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1660630385?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Regional+assessment+of+storm-triggered+shall+landslide+risks+using+the+SLIDE+%28SLope-infiltration-distributed+equilibrium%29+model&rft.au=Hong%2C+Y%3BKirschbaum%2C+D+B%3BFukuoka%2C+H%3BAnonymous&rft.aulast=Hong&rft.aufirst=Y&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/NH/sessions/NH13E/abstracts/NH13E-1411.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-03-05 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Central America; cyclones; damage; data bases; data processing; debris flows; dynamics; early warning systems; Honduras; human activity; Hurricane Mitch; hurricanes; hydrology; in situ; infiltration; landslides; mass movements; mitigation; prediction; rainfall; regional; remote sensing; risk assessment; runoff; SLIDE model; slope stability; SLope-infiltration-distributed equilibrium model; storms; warning systems ER - TY - JOUR T1 - Interannual to multidecadal climate variability and groundwater resources of the Western United States AN - 1656035543; 2015-014033 AB - Climate variability and change have important implications for groundwater recharge, discharge, contaminant transport, and resource sustainability. Reliable predictions of groundwater sustainability due to climate change will require improved understanding of the effects of global scale atmosphere-ocean climate oscillations on interannual to multidecadal timescales. Climate variability on these timescales partially controls precipitation, air temperature, drought, evapotranspiration, streamflow, recharge, and mobilization of subsurface-chemical reservoirs. Climate variability can augment or diminish human stresses on groundwater, and the responses in storage can be dramatic when different climate cycles lie coincident in a positive or negative phase of variability. Thus, understanding climate variability has particular relevance for management decisions during drought and for water resources close to the limits of sustainability. Major findings will be presented from a national scale study of climate variability on recharge rates and groundwater levels, and will highlight regional aquifers of the western United States, including the Basin and Range (700,000 km (super 2) ), Central Valley (52,000 km (super 2) ), High Plains (450,000 km (super 2) ), and Mississippi Embayment (181,000 km (super 2) ) aquifer systems. Using singular spectrum analysis, the groundwater pumping signal was removed and natural variations were identified in groundwater levels as partially coincident with the El Nino/Southern Oscillation (ENSO) (2-6 year cycle), North Atlantic Oscillation (3-6 year cycle), Pacific Decadal Oscillation (PDO) (10-25 year cycle), and Atlantic Multidecadal Oscillation (AMO) (50-80 year cycle). The PDO was the most significant contributor to recharge and groundwater level fluctuations in most aquifers. In the Central Valley and the Basin and Range, the PDO contributes to the greatest amount of variance (ranging from 13.6-83%) in all precipitation and groundwater level time series, with moderate to strong lag correlations (ranging from 0.19-0.75). In the High Plains, PDO varying recharge rates (196 to 476 mm yr (super -1) ) were found to be substantially larger than previous estimates of diffuse recharge (0.2 to 110 mm yr (super -1) ), indicating the importance of preferential flow and downward displacement of chloride reservoirs during recharge to the High Plains aquifer. In the Mississippi Embayment, future PDO and AMO shifts and continued groundwater-pumping trends are predicted to result in 25 to 50 m declines in water levels by the year 2038. Wavelet analysis was also used to examine the nonstationary phase relation of multiple time series to identify significance and duration of each climate forcing. A consistent phase relation of multiple signals suggests possible coherence between climate forcings and groundwater levels, and also indicates the importance of PDO. Findings support the conclusion that interannual to multidecadal climate variability affects groundwater availability across the United States, and should be included in adaptive groundwater management. JF - American Geophysical Union Fall Meeting AU - Gurdak, J J AU - Kuss, A M AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H43I EP - 1344 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - decadal variations KW - climatic controls KW - Basin and Range Province KW - Mississippi Embayment KW - water management KW - climate change KW - ground water KW - drought KW - California KW - hydrologic cycle KW - El Nino Southern Oscillation KW - wavelets KW - transport KW - Western U.S. KW - Great Plains KW - hydrology KW - North America KW - annual variations KW - time series analysis KW - pollutants KW - statistical analysis KW - pollution KW - evapotranspiration KW - aquifers KW - Central Valley KW - recharge KW - streamflow KW - water resources KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1656035543?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Interannual+to+multidecadal+climate+variability+and+groundwater+resources+of+the+Western+United+States&rft.au=Gurdak%2C+J+J%3BKuss%2C+A+M%3BAnonymous&rft.aulast=Gurdak&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H43I/abstracts/H43I-1344.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-02-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - annual variations; aquifers; Basin and Range Province; California; Central Valley; climate change; climatic controls; decadal variations; drought; El Nino Southern Oscillation; evapotranspiration; Great Plains; ground water; hydrologic cycle; hydrology; Mississippi Embayment; North America; pollutants; pollution; recharge; statistical analysis; streamflow; time series analysis; transport; United States; water management; water resources; wavelets; Western U.S. ER - TY - JOUR T1 - Utilizing new methodologies to study major earthquakes; multi-parameter observation of pre-earthquake signals from ground and space AN - 1648908230; 2015-008409 AB - We present for the first time new data for joint observations of pre-earthquake signals of atmospheric-thermal, ionospheric, Global Positioning System/Total Electron Content, gravitational, telluric currents and stress related signals in relation to major earthquakes. Our results and the work of others have shown that there were some electromagnetic effects in the atmosphere/ionosphere caused by strong earthquakes. We are studying the Earth's atmospheric electromagnetic environment by developing a multi-sensor model for monitoring the signals related to active tectonic faulting and earthquake processes. Two of the most recent earthquakes in Asia, M7.9 Wenchuan earthquake (China, 2008) and the latest M9.0 Tohoku earthquake/tsunami (Japan, 2011) caused great devastation and significant loss of life, which is another indication that development of an earthquake risk management scheme requires diverse interdisciplinary efforts. In this paper we address what is currently lacking in the studies of pre-earthquake signals: the synergy in the multi-disciplinary observation needed to understand the earthquake process and systematic and abnormal trends within multi-parameters simultaneously, utilizing the integration of ground and space observations. We discuss the lessons learned from both Wenchuan earthquake and Tohoku earthquakes in relation to pre-earthquake signals and how new methodologies could help for the future space- and ground-based observation of earthquake related precursor phenomena. JF - American Geophysical Union Fall Meeting AU - Ouzounov, D P AU - Pulinets, S A AU - Liu, J G AU - Hattori, K AU - Kalenda, P AU - Shen, W AU - Bobrovskiy, V S AU - Windsor, C AU - Kafatos, M AU - Taylor, P T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract NH21E EP - 01 PB - American Geophysical Union, Washington, DC VL - 2011 KW - tsunamis KW - ionosphere KW - Global Positioning System KW - Tohoku-Oki earthquake 2011 KW - Far East KW - geologic hazards KW - stress KW - prediction KW - atmosphere KW - Wenchuan earthquake 2008 KW - natural hazards KW - tectonics KW - electromagnetic field KW - Asia KW - earthquakes KW - seismotectonics KW - Japan KW - China KW - dynamic properties KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1648908230?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Utilizing+new+methodologies+to+study+major+earthquakes%3B+multi-parameter+observation+of+pre-earthquake+signals+from+ground+and+space&rft.au=Ouzounov%2C+D+P%3BPulinets%2C+S+A%3BLiu%2C+J+G%3BHattori%2C+K%3BKalenda%2C+P%3BShen%2C+W%3BBobrovskiy%2C+V+S%3BWindsor%2C+C%3BKafatos%2C+M%3BTaylor%2C+P+T%3BAnonymous&rft.aulast=Ouzounov&rft.aufirst=D&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/NH/sessions/NH21E/abstracts/NH21E-01.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-01-29 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Asia; atmosphere; China; dynamic properties; earthquakes; electromagnetic field; Far East; geologic hazards; Global Positioning System; ionosphere; Japan; natural hazards; prediction; seismotectonics; stress; tectonics; Tohoku-Oki earthquake 2011; tsunamis; Wenchuan earthquake 2008 ER - TY - JOUR T1 - Coulomb stress, surface displacement, and seismic rate changes associated with ice mass fluctuations on seasonal, annual, and decadal time scales AN - 1648908169; 2015-008494 AB - Between Yakutat and Cordova in southern Alaska, large ice mass fluctuations occur in a region of upper crustal faulting and folding associated with collision and accretion of the Yakutat terrane. Following the Little Ice Age, glacial retreat in this area commenced in the late 19th century and the last great earthquakes occurred in 1899. Annual ablation rates of meters/year have been estimated over the last several decades from aircraft and satellite lidar and radar measurements. For the Chugach-St. Elias region, GRACE 1 deg X 1 deg mascon estimates indicate a general trend of annual ice mass loss (2003-2010) with large, variable seasonal mass fluctuations. The station position of a continuous GPS site near Cape Yakataga (Alaska EarthScope PBO site, AB35, pbo.unavco.org) shows large seasonal excursions in the detrended vertical and horizontal components consistent with snow loading in the late fall and winter. Surface displacements of the solid Earth associated with these annual and seasonal ice and snow changes were calculated using a layered elastic half-space model. For instance, during a warm period in 2002-2006 the predicted elastic displacement rates of the solid Earth due to average annual ice changes were up to 20 mm/yr for the vertical and 3 mm/yr for the horizontal. To empirically evaluate the influence of short-term ice fluctuations on fault stability, we compared the seismic rate (M>1.8) from a reference background time period against other time periods with variable ice or tectonic change characteristics. After probable icequakes were removed from the AEIC catalog, the seismic rate change for the time periods of 1993-1996 and 1997-2001 relative to 1988-1992 was not statistically significant and the tectonic events did not show a strong seasonal dependence. However, we found that the frequency of small earthquakes increased significantly in the 2002-2006 time interval relative to the reference time period of 1988-1992 and there was a significant increase in these small events in the late summer and fall. For most months the temperature at the Yakutat NWS in 2002-2006 was several degrees warmer than the long-term (1917-2010) average. For 2007-2009 average monthly temperatures were cooler than the long-term average and there was a lower rate of ice mass loss as measured by GRACE. To calculate the longer-term influence of Little Ice Age glacial build-up and subsequent retreat on Coulomb stress changes, we are using PYLITH finite element model (FEM) calculations assuming a linear Maxwell viscoelastic Earth model. Our earlier 2-D TECTON FEM calculations indicated cumulative changes in the fault stability margin over 80 years of 0.2-1.2 MPa between the Gulf of Alaska coast and epicenter of the 1979 St. Elias earthquake. JF - American Geophysical Union Fall Meeting AU - Sauber, J M AU - Ruppert, N A AU - Luthcke, S B AU - Williams, C A AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract U53E EP - 04 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - decadal variations KW - Global Positioning System KW - Cordova Quadrangle KW - Little Ice Age KW - ablation KW - Northeast Pacific KW - shear stress KW - elastic properties KW - icequakes KW - GRACE KW - displacements KW - Holocene KW - Cenozoic KW - finite element analysis KW - Yakutat Bay KW - seismicity KW - ice KW - folds KW - tectonics KW - faults KW - climate KW - East Pacific KW - North America KW - continental margin KW - Quaternary KW - annual variations KW - satellite methods KW - viscoelasticity KW - plate convergence KW - time scales KW - fluctuations KW - geodynamics KW - North Pacific KW - Neoglacial KW - Gulf of Alaska KW - Pacific Ocean KW - half-space KW - Saint Elias Mountains KW - Alaska KW - seasonal variations KW - upper Holocene KW - earthquakes KW - 24:Quaternary geology KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1648908169?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Coulomb+stress%2C+surface+displacement%2C+and+seismic+rate+changes+associated+with+ice+mass+fluctuations+on+seasonal%2C+annual%2C+and+decadal+time+scales&rft.au=Sauber%2C+J+M%3BRuppert%2C+N+A%3BLuthcke%2C+S+B%3BWilliams%2C+C+A%3BAnonymous&rft.aulast=Sauber&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/U/sessions/U53E/abstracts/U53E-04.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-01-29 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - ablation; Alaska; annual variations; Cenozoic; climate; continental margin; Cordova Quadrangle; decadal variations; displacements; earthquakes; East Pacific; elastic properties; faults; finite element analysis; fluctuations; folds; geodynamics; Global Positioning System; GRACE; Gulf of Alaska; half-space; Holocene; ice; icequakes; Little Ice Age; Neoglacial; North America; North Pacific; Northeast Pacific; Pacific Ocean; plate convergence; Quaternary; Saint Elias Mountains; satellite methods; seasonal variations; seismicity; shear stress; tectonics; time scales; United States; upper Holocene; viscoelasticity; Yakutat Bay ER - TY - JOUR T1 - On the reported ionospheric precursors of the 1999 Hector Mine, CA earthquake and the 2011 Tohoku, Japan earthquake AN - 1648908082; 2015-008440 AB - There is currently no reliable method for predicting earthquakes, although some claims of success have been published, and among these are reports of perturbations in the ionosphere prior to large earthquakes. In this presentation, we examine reports of precursors prior to two earthquakes: Hector Mine, CA 1999 and Tohoku, Japan 2011. Pulinets et al. 2007 reported ionospheric anomalies prior to the 16 Oct. 1999 Hector Mine, California earthquake. Using Global Positioning System (GPS) data recorded near the epicenter of the earthquake, they identified anomalous precursory changes in the ionospheric total electron count (TEC). Whereas, in a separate analysis, Afraimovich et al. 2004 concluded that the TEC variations were controlled by geomagnetic activity instead of earthquake preparation processes. In a check of their results, we examine multiple TEC time series derived from GPS stations near the earthquake epicenter. We find that TEC anomalies are observed long before and after the Hector Mine earthquake. Moreover, no temporal relationship is found between these TEC anomalies and regional seismicity. Thus, in agreement with Afraimovich et al., we conclude that the anomaly reported by Pulinets et al. is not unique and is most likely unrelated to the Hector Mine earthquake. It could not be used as a part of reliable statistics-based earthquake prediction technique. As a second example, Ouzounov et al. 2011 reported TEC anomalies prior the 11 Mar. 2011 Tohoku, Japan earthquake. We will also present an analysis, still ongoing, of this report. JF - American Geophysical Union Fall Meeting AU - Thomas, J N AU - Love, J J AU - Komjathy, A AU - Verkhoglyadova, O P AU - Butala, M D AU - Galvan, D A AU - Rivera, N AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract NH51A EP - 1693 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - precursors KW - ionosphere KW - Global Positioning System KW - Tohoku-Oki earthquake 2011 KW - monitoring KW - Far East KW - prediction KW - anomalies KW - indicators KW - California KW - seismicity KW - epicenters KW - Asia KW - earthquakes KW - Japan KW - Hector Mine earthquake 1999 KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1648908082?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=On+the+reported+ionospheric+precursors+of+the+1999+Hector+Mine%2C+CA+earthquake+and+the+2011+Tohoku%2C+Japan+earthquake&rft.au=Thomas%2C+J+N%3BLove%2C+J+J%3BKomjathy%2C+A%3BVerkhoglyadova%2C+O+P%3BButala%2C+M+D%3BGalvan%2C+D+A%3BRivera%2C+N%3BAnonymous&rft.aulast=Thomas&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/NH/sessions/NH23A/abstracts/NH51A-1693.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-01-29 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - anomalies; Asia; California; earthquakes; epicenters; Far East; Global Positioning System; Hector Mine earthquake 1999; indicators; ionosphere; Japan; monitoring; precursors; prediction; seismicity; Tohoku-Oki earthquake 2011; United States ER - TY - JOUR T1 - Effects of stress activated positive-hole charge carriers on radar reflectance of gabbro-diorite AN - 1648907812; 2015-008429 AB - When load is applied to igneous or high-grade metamorphic rocks, trapped electron vacancy defects are activated and become mobile positive-hole charge carriers. These mobile charge carriers repel each other through Coulomb interactions and move outward from the stressed region. As large numbers of positive-holes reach the surface of the rock, this surface charge may cause an observable change in radar reflectance. In this experiment, a series of holes is drilled into a large gabbro-diorite boulder from the A.R. Wilson Quarry in Aromas, CA. Bustar, an expansive, non-explosive demolition agent, is poured into the holes while a 1.2 GHz radar system measures the amplitude of radar waves reflected from the rock's surface. Over the course of the experiment, the radar antenna is swept repeatedly across one face of the rock, pausing in one of twelve positions to collect data before moving to the next position. At the end of each sweep, the radar is calibrated against both a corner reflector and a flat-plate reflector. This sampling method is employed to detect and assign a cause to transient effects observed at any one location. An initial analysis of the radar data shows a high level of agreement between readings from the flat-plate and corner reflectors, supporting the use of flat-plate reflectors as a calibration source for this omnidirectional radar system. Fitting a trend to the amplitude of the wave reflected from the rock's surface is complicated by the presence of unexpected outliers and noise artifacts from the radar system itself. It appears that such a trend, if present, would likely indicate a change in amplitude of the reflected signal of less than 5 percent over the course of the experiment. JF - American Geophysical Union Fall Meeting AU - Williams, C AU - Vanderbilt, V C AU - Dahlgren, R AU - Cherukupally, A AU - Freund, F T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract NH23A EP - 1540 PB - American Geophysical Union, Washington, DC VL - 2011 KW - geologic hazards KW - waves KW - igneous rocks KW - stress KW - radar methods KW - electrical field KW - plutonic rocks KW - detection KW - diorites KW - natural hazards KW - gabbros KW - reflectance KW - electrical currents KW - remote sensing KW - electrons KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1648907812?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Effects+of+stress+activated+positive-hole+charge+carriers+on+radar+reflectance+of+gabbro-diorite&rft.au=Williams%2C+C%3BVanderbilt%2C+V+C%3BDahlgren%2C+R%3BCherukupally%2C+A%3BFreund%2C+F+T%3BAnonymous&rft.aulast=Williams&rft.aufirst=C&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/NH/sessions/NH23A/abstracts/NH23A-1540.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-01-29 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - detection; diorites; electrical currents; electrical field; electrons; gabbros; geologic hazards; igneous rocks; natural hazards; plutonic rocks; radar methods; reflectance; remote sensing; stress; waves ER - TY - JOUR T1 - Analysis of seasonal variability in Gulf of Alaska glacier mass balance using GRACE AN - 1645570003; 2015-003122 AB - Mass variations of glaciers in Alaska/northwestern Canada must be quantified in order to assess impacts on ecosystems, human infrastructure, and global sea level. Here we combine Gravity Recovery and Climate Experiment (GRACE) observations with a wide range of satellite and field data to investigate drivers of these recent changes, with a focus on seasonal variations. Our central focus will be the exceptionally high mass losses of 2009, which do not correlate with weather station temperature and precipitation data, but may be linked to ash fall from the March 31, 2009 eruption of Mt. Redoubt. The eruption resulted in a significant decrease in MODIS-derived surface albedo over many Alaska glacier regions, and likely contributed to some of the 2009 anomalous mass loss observed by GRACE. We also focus on the Juneau and Stikine Icefield regions that are far from the volcanic eruption but experienced the largest mass losses of any region in 2009. Although rapid drawdown of tidewater glaciers was occurring in southeast Alaska during 2009, we show these changes were probably not sufficiently widespread to explain all of the GRACE signal in those regions. We examine additional field and satellite datasets to quantify potential errors in the climate and GRACE fields that could result in the observed discrepancy. JF - American Geophysical Union Fall Meeting AU - Arendt, A A AU - Luthcke, S B AU - Oneel, S AU - Gardner, A S AU - Hill, D F AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract C34A EP - 02 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - East Pacific KW - albedo KW - Northeast Pacific KW - GRACE KW - glaciers KW - Stikine ice field KW - ecosystems KW - satellite methods KW - Juneau ice field KW - climate change KW - fluctuations KW - sea-level changes KW - North Pacific KW - mass balance KW - ice KW - Gulf of Alaska KW - eruptions KW - Pacific Ocean KW - ice fields KW - Alaska KW - seasonal variations KW - MODIS KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645570003?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Analysis+of+seasonal+variability+in+Gulf+of+Alaska+glacier+mass+balance+using+GRACE&rft.au=Arendt%2C+A+A%3BLuthcke%2C+S+B%3BOneel%2C+S%3BGardner%2C+A+S%3BHill%2C+D+F%3BAnonymous&rft.aulast=Arendt&rft.aufirst=A&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/C/sessions/C34A/abstracts/C34A-02.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-01-15 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Alaska; albedo; climate change; East Pacific; ecosystems; eruptions; fluctuations; glaciers; GRACE; Gulf of Alaska; ice; ice fields; Juneau ice field; mass balance; MODIS; North Pacific; Northeast Pacific; Pacific Ocean; satellite methods; sea-level changes; seasonal variations; Stikine ice field; United States ER - TY - JOUR T1 - A two-tiered approach to assessing the habitability of exoplanets AN - 1641013261; 2015-000913 JF - Astrobiology AU - Schulze-Makuch, Dirk AU - Mendez, Abel AU - Fairen, Alberto G AU - von Paris, Philip AU - Turse, Carol AU - Boyer, Grayson AU - Davila, Alfonso F AU - Antonio, Marina Resendes de Sousa AU - Catling, David AU - Irwin, Louis N Y1 - 2011/12// PY - 2011 DA - December 2011 SP - 1041 EP - 1052 PB - Mary Ann Liebert, Larchmont, NY VL - 11 IS - 10 SN - 1531-1074, 1531-1074 KW - extrasolar planets KW - density KW - magnetosphere KW - atmosphere KW - astrobiology KW - Gliese 581 c KW - Gliese 581 d KW - size KW - terrestrial planets KW - escape velocity KW - planets KW - Earth similarity index KW - planetary habitability index KW - habitability KW - classification KW - ground-surface temperature KW - energy KW - Eh KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1641013261?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrobiology&rft.atitle=A+two-tiered+approach+to+assessing+the+habitability+of+exoplanets&rft.au=Schulze-Makuch%2C+Dirk%3BMendez%2C+Abel%3BFairen%2C+Alberto+G%3Bvon+Paris%2C+Philip%3BTurse%2C+Carol%3BBoyer%2C+Grayson%3BDavila%2C+Alfonso+F%3BAntonio%2C+Marina+Resendes+de+Sousa%3BCatling%2C+David%3BIrwin%2C+Louis+N&rft.aulast=Schulze-Makuch&rft.aufirst=Dirk&rft.date=2011-12-01&rft.volume=11&rft.issue=10&rft.spage=1041&rft.isbn=&rft.btitle=&rft.title=Astrobiology&rft.issn=15311074&rft_id=info:doi/10.1089%2Fast.2010.0592 L2 - http://www.liebertpub.com/publication.aspx?pub_id=99 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 72 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2014-12-31 N1 - SubjectsTermNotLitGenreText - astrobiology; atmosphere; classification; density; Earth similarity index; Eh; energy; escape velocity; extrasolar planets; Gliese 581 c; Gliese 581 d; ground-surface temperature; habitability; magnetosphere; planetary habitability index; planets; size; terrestrial planets DO - http://dx.doi.org/10.1089/ast.2010.0592 ER - TY - JOUR T1 - The O/OREOS Mission; first science data from the Space Environment Survivability of Living Organisms (SESLO) payload AN - 1641013176; 2015-000907 JF - Astrobiology AU - Nicholson, Wayne L AU - Ricco, Antonio J AU - Agasid, Elwood AU - Beasley, Christopher AU - Diaz-Aguado, Millan AU - Ehrenfreund, Pascale AU - Friedericks, Charles AU - Ghassemieh, Shakib AU - Henschke, Michael AU - Hines, John W AU - Kitts, Christopher AU - Luzzi, Ed AU - Ly, Diana AU - Mai, Nghia AU - Mancinelli, Rocco AU - McIntyre, Michael AU - Minelli, Giovanni AU - Neumann, Michael AU - Parra, Macarena AU - Piccini, Matthew AU - Rasay, R Mike AU - Ricks, Robert AU - Santos, Orlando AU - Schooley, Aaron AU - Squires, David AU - Timucin, Linda AU - Yost, Bruce AU - Young, Anthony Y1 - 2011/12// PY - 2011 DA - December 2011 SP - 951 EP - 958 PB - Mary Ann Liebert, Larchmont, NY VL - 11 IS - 10 SN - 1531-1074, 1531-1074 KW - nanosatellites KW - International Space Station KW - dye tracers KW - astrobiology KW - interplanetary space KW - ionizing radiation KW - Space Environment Survivability of Living Organisms payload KW - SESLO payload KW - background radiation KW - Bacillus KW - Eh KW - microgravity KW - experimental studies KW - Bacillus subtilis KW - living taxa KW - spaceflight KW - metabolism KW - radiation damage KW - satellite methods KW - Organism/Organism Exposure to Orbital Stresses KW - nutrients KW - spores KW - O/OREOS Mission KW - bacteria KW - low-Earth orbit KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1641013176?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrobiology&rft.atitle=The+O%2FOREOS+Mission%3B+first+science+data+from+the+Space+Environment+Survivability+of+Living+Organisms+%28SESLO%29+payload&rft.au=Nicholson%2C+Wayne+L%3BRicco%2C+Antonio+J%3BAgasid%2C+Elwood%3BBeasley%2C+Christopher%3BDiaz-Aguado%2C+Millan%3BEhrenfreund%2C+Pascale%3BFriedericks%2C+Charles%3BGhassemieh%2C+Shakib%3BHenschke%2C+Michael%3BHines%2C+John+W%3BKitts%2C+Christopher%3BLuzzi%2C+Ed%3BLy%2C+Diana%3BMai%2C+Nghia%3BMancinelli%2C+Rocco%3BMcIntyre%2C+Michael%3BMinelli%2C+Giovanni%3BNeumann%2C+Michael%3BParra%2C+Macarena%3BPiccini%2C+Matthew%3BRasay%2C+R+Mike%3BRicks%2C+Robert%3BSantos%2C+Orlando%3BSchooley%2C+Aaron%3BSquires%2C+David%3BTimucin%2C+Linda%3BYost%2C+Bruce%3BYoung%2C+Anthony&rft.aulast=Nicholson&rft.aufirst=Wayne&rft.date=2011-12-01&rft.volume=11&rft.issue=10&rft.spage=951&rft.isbn=&rft.btitle=&rft.title=Astrobiology&rft.issn=15311074&rft_id=info:doi/10.1089%2Fast.2011.0714 L2 - http://www.liebertpub.com/publication.aspx?pub_id=99 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 18 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2014-12-31 N1 - SubjectsTermNotLitGenreText - astrobiology; Bacillus; Bacillus subtilis; background radiation; bacteria; dye tracers; Eh; experimental studies; International Space Station; interplanetary space; ionizing radiation; living taxa; low-Earth orbit; metabolism; microgravity; nanosatellites; nutrients; O/OREOS Mission; Organism/Organism Exposure to Orbital Stresses; radiation damage; remote sensing; satellite methods; SESLO payload; Space Environment Survivability of Living Organisms payload; spaceflight; spores DO - http://dx.doi.org/10.1089/ast.2011.0714 ER - TY - JOUR T1 - Radiogenic calcium isotopes in granites from the Lhasa region, Tibet; limits on magmatic contributions to crustal thickening during collision AN - 1629945802; 2014-095292 AB - Continental crust is largely generated in subduction zones. Intraoceanic arc magmatism produces primitive basaltic-andesitic crust, whereas continental margin arc magmas may incorporate older continental crust; here isotope geochemistry can be used to distinguish new mantle-derived additions from reworked older crust. The Gangdese magmatic arc is a composite batholith of similar scale to the Sierra Nevada; it and coeval volcanic rocks provide a record of magmatism through the transition from subduction to Himalayan collision. In evaluating the evolution of this continental margin it is important to account for crustal thickening by magmatic addition as well as that due to tectonics. To explore the evolution of the Tibetan continental crust during this transition, we measured radiogenic 40-Ca enrichments in a suite of Jurassic to Miocene granitic samples defining a south-to-north transect north of the Indus-Tsangpo Suture (ITS) near Lhasa, Tibet. The samples include Gangdese granodiorites and 2-mica granites, coeval silicic tuffs, and granitic gneiss from the Kangmar Dome in the Lesser Himalaya. North of the ITS, the rocks show systematic Sr and Nd isotopic trends indicating increasing crustal involvement with northward distance and with time as the subduction transitioned to collision. In natural samples, radiogenic 40-Ca enrichments from 40-K decay are less than 0.1%, and are reported in epsilon notation (epsilon (sub Ca) ) as parts per 10000 relative to bulk Earth mantle. Current precision is approximately + or -0.3 to + or -0.7 epsilon units. Initial epsilon (sub Ca) is sensitive to the involvement of K-rich rocks such as clastic metasediments and high-silica granitic rocks. Granodiorites from near the ITS have minor enrichments (epsilon (sub Ca) = 0.4 to 0.8), which can be explained as reflecting small contributions of pre-existing continental crust to the magmas, consistent with their mantle-like Nd and Sr isotopes. The 2-mica granitoids from the Gangdese, located >100 km north of the ITS, have epsilon (sub Ca) of 0.7 to 4.2, indicative of derivation largely by melting of mid-Proterozoic crust underlying southern Tibet. The Kangmar Dome gneiss may be representative of such crust on the Indian side of the ITS, and its measured epsilon (sub Ca) of 2.21+ or -0.35 is illustrative of mid- to lower crustal meta-igneous rocks that could serve as sources for peraluminous, elevated epsilon (sub Ca) granites. Metasedimentary rocks from the Kangmar Dome have measured epsilon (sub Ca) of 2.2 to 5.8. If assimilated, this material could significantly increase the epsilon (sub Ca) of mantle-derived magmas. The Ca isotope data agree with inferences from Nd isotopes in that they suggest that the southernmost boundary of the pre-collision Tibetan crust was relatively thin, but thickened prior to and during early stages of collision by addition of mantle-derived magma. The region >100 km north of the ITS was apparently underlain by thick silicic continental crust prior to collision and shows little evidence of Cretaceous or younger mantle-derived magmatic additions to the crust. JF - American Geophysical Union Fall Meeting AU - Peterson, B T AU - DePaolo, D J AU - Simon, J I AU - Harrison, T M AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract V52A EP - 07 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - calcium KW - Ca-40 KW - Far East KW - upper Precambrian KW - subduction zones KW - isotopes KW - Cretaceous KW - igneous rocks KW - Gangdese Belt KW - granites KW - mantle KW - Lesser Himalayas KW - stable isotopes KW - California KW - plutonic rocks KW - Indus-Yarlung Zangbo suture zone KW - Xizang China KW - Tibetan Plateau KW - Sierra Nevada Batholith KW - Himalayas KW - tectonics KW - rare earths KW - Asia KW - China KW - alkaline earth metals KW - Precambrian KW - plate collision KW - isotope ratios KW - Proterozoic KW - Kangmar Dome KW - Mesozoic KW - Mesoproterozoic KW - Nd-144/Nd-143 KW - Sr-87/Sr-86 KW - Ca-44/Ca-40 KW - plate tectonics KW - metals KW - Lhasa Block KW - neodymium KW - strontium KW - crust KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629945802?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Radiogenic+calcium+isotopes+in+granites+from+the+Lhasa+region%2C+Tibet%3B+limits+on+magmatic+contributions+to+crustal+thickening+during+collision&rft.au=Peterson%2C+B+T%3BDePaolo%2C+D+J%3BSimon%2C+J+I%3BHarrison%2C+T+M%3BAnonymous&rft.aulast=Peterson&rft.aufirst=B&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-04 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Asia; Ca-40; Ca-44/Ca-40; calcium; California; China; Cretaceous; crust; Far East; Gangdese Belt; granites; Himalayas; igneous rocks; Indus-Yarlung Zangbo suture zone; isotope ratios; isotopes; Kangmar Dome; Lesser Himalayas; Lhasa Block; mantle; Mesoproterozoic; Mesozoic; metals; Nd-144/Nd-143; neodymium; plate collision; plate tectonics; plutonic rocks; Precambrian; Proterozoic; rare earths; Sierra Nevada Batholith; Sr-87/Sr-86; stable isotopes; strontium; subduction zones; tectonics; Tibetan Plateau; United States; upper Precambrian; Xizang China ER - TY - JOUR T1 - The impact of rise of the Andes and Amazon landscape evolution on diversification of lowland terra-firme forest birds AN - 1623281504; 2014-072840 AB - Since the 19th Century, the unmatched biological diversity of Amazonia has stimulated a diverse set of hypotheses accounting for patterns of species diversity and distribution in mega-diverse tropical environments. Unfortunately, the evidence supporting particular hypotheses to date is at best described as ambiguous, and no generalizations have emerged yet, mostly due to the lack of comprehensive comparative phylogeographic studies with thorough trans-Amazonian sampling of lineages. Here we report on spatial and temporal patterns of diversification estimated from mitochondrial gene trees for 31 lineages of birds associated with upland terra-firme forest, the dominant habitat in modern lowland Amazonia. The results confirm the pervasive role of Amazonian rivers as primary barriers separating sister lineages of birds, and a protracted spatio-temporal pattern of diversification, with a gradual reduction of earlier (1st and 2nd) and older (> 2 mya) splits associated with each lineage in an eastward direction (the easternmost tributaries of the Amazon, the Xingu and Tocantins Rivers, are not associated with any splits older than > 2 mya). This "younging-eastward" pattern may have an abiotic explanation related to landscape evolution. Triggered by a new pulse of Andean uplift, it has been proposed that modern Amazon basin landscapes may have evolved successively eastward, away from the mountain chain, starting nearly equal 10 mya. This process was likely based on the deposition of vast fluvial sediment masses, known as megafans, which apparently extended in series progressively eastward from Andean sources. The effects on drainage patterns are apparent from the location of axial rivers such as the Negro / Orinoco and Madeira which lie at the distal ends of major megafan ramparts at cratonic margins furthest from the Andes. Megafan extension plausibly explains the progressive extinction of the original Pebas wetland of west-central Amazonia by the present fluvial land surfaces where upland terra-firme forest develop. The youngest land surfaces thus appear to lie furthest from the mountains. In this scenario major drainages were also reoriented in wholesale fashion from a northward (Caribbean) outlet to a generally eastward, Atlantic Ocean outlet. More importantly, other major river courses in western-central Amazonia will have been established at progressively younger dates with distance eastward. The bird DNA data appears to confirm the role of Amazonian rivers as primary diversification barriers, and thus probably as promoters of bird speciation. We show for the first time that a general spatio-temporal pattern of diversification for terra-firme lineages in the Amazon is associated with rivers of apparently different ages ("younging-eastward"), and furthermore parallels a specific scenario of regional drainage evolution. JF - American Geophysical Union Fall Meeting AU - Aleixo, A AU - Wilkinson, J AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract EP33D EP - 07 PB - American Geophysical Union, Washington, DC VL - 2011 KW - tropical environment KW - landform evolution KW - uplifts KW - megafans KW - Xingu River KW - Rio Negro KW - paleogeography KW - habitat KW - South America KW - Orinoco River KW - lowlands KW - Andean Orogeny KW - wetlands KW - Brazil KW - alluvial fans KW - Tocantins River region KW - paleobiology KW - fluvial features KW - drainage basins KW - landscapes KW - species diversity KW - Amazon Basin KW - 23:Geomorphology KW - 08:General paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623281504?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+impact+of+rise+of+the+Andes+and+Amazon+landscape+evolution+on+diversification+of+lowland+terra-firme+forest+birds&rft.au=Aleixo%2C+A%3BWilkinson%2C+J%3BAnonymous&rft.aulast=Aleixo&rft.aufirst=A&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/EP/sessions/EP33D/abstracts/EP33D-07 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-11-13 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - alluvial fans; Amazon Basin; Andean Orogeny; Brazil; drainage basins; fluvial features; habitat; landform evolution; landscapes; lowlands; megafans; Orinoco River; paleobiology; paleogeography; Rio Negro; South America; species diversity; Tocantins River region; tropical environment; uplifts; wetlands; Xingu River ER - TY - JOUR T1 - Integrated hydrologic validation to improve physical precipitation retrievals for GPM AN - 1623258649; 2014-087482 AB - One of the five scientific objectives for GPM is to "Improve hydrological modeling and prediction", including advancing prediction skill for high-impact hazards such as floods, droughts, landslides and landfalling hurricanes. Given the focus on land hydrology, and the range of hydrologic regimes targeted by GPM, it follows that a hydrologically-oriented ground validation program that covers these regimes from both the physical retrieval and the hydrological prediction perspectives is required for the successful application of GPM to land hydrology. In order to investigate the robustness of both hydrologic model predictions and physical precipitation retrievals, this talk will present recent evaluations of skill in land surface hydrologic models forced with TRMM-era multisensor products, with and without land data assimilation. In addition to LSM skill, we will also demonstrate how physical precipitation retrievals can be supported by land surface emissivity and temperature estimates obtained by coupling microwave emission models (e.g., the Joint Center for Satellite Data Assimilation Community Radiative Transfer Model CRTM and the European Center for Medium-Range Weather Forecasting's Community Microwave Emission Model CMEM) to the land surface models in the Land Information System (LIS; http://lis.gsfc.nasa.gov). Evaluation at multiple frequencies, with and without land data assimilation, demonstrates the critical impact of certain real-time ancillary data (e.g., snow cover) on the microwave background states required for physical retrievals. JF - American Geophysical Union Fall Meeting AU - Peters-Lidard, C D AU - Harrison, K W AU - Tian, Y AU - Kumar, S V AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H41L EP - 01 PB - American Geophysical Union, Washington, DC VL - 2011 KW - hydrology KW - geologic hazards KW - rainfall KW - government agencies KW - data processing KW - radar methods KW - prediction KW - atmospheric precipitation KW - satellite methods KW - NASA KW - natural hazards KW - floods KW - data bases KW - meteorology KW - remote sensing KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623258649?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Lunar+impact+basins%3B+crater+statistics+and+sequence+from+a+Lunar+Orbiter+Laser+Altimeter+%28LOLA%29+catalog+of+large+lunar+craters+%28%26gt%3B+or+%3D20+km%29&rft.au=Fassett%2C+Caleb+I%3BKadish%2C+Seth+J%3BHead%2C+J+W%3BSmith%2C+D+E%3BZuber%2C+M+T%3BNeumann%2C+G+A%3BMazarico%2C+Erwan%3BAnonymous&rft.aulast=Fassett&rft.aufirst=Caleb&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-11-13 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; data bases; data processing; floods; geologic hazards; government agencies; hydrology; meteorology; NASA; natural hazards; prediction; radar methods; rainfall; remote sensing; satellite methods ER - TY - JOUR T1 - Modelling of compositional variation as a result of species transport during melt segregation AN - 1612261487; 2014-079633 AB - Models of magma formation and melt segregation in the deep crust often consider the coupled transport of heat and mass, but rarely consider species transport, i.e. the migration of major components and trace elements. As melt migrates relative to the matrix during melt segregation, compositional diversity, reflecting both the process and the thermal environment, can develop and plays an important role in determining the geochemical signature of any resultant magmas. Here, a model of heat, mass and both major component and trace element transport in a system undergoing buoyancy driven melt segregation (compaction) is presented. The model describes the phase behavior of binary systems (both eutectic and solid solution) with the melt and solid compositions determined by temperature. Where melting relationships are required, they are determined from the phase diagram using the local temperature and bulk composition. Trace element concentrations can also be determined from the local bulk concentration and melt fraction. This model is applied to a number of different cases in which a one-dimensional column, with various different initial and boundary conditions, undergoes buoyancy driven melt segregation and this set up has been chosen as it most closely represents a case which could be repeated in a laboratory setting. In the simplest case, a perfectly insulated column with uniform initial temperature, melt fraction, composition and trace element concentration, is allowed to compact. As major components are transported, local melting and freezing take place. Variations in temperature the develop and the resulting bulk composition and trace element profiles differ from those predicted by models which do not consider binary systems, though this difference is small. Heterogeneous systems, in which the column initially has layers with different bulk compositions, have also been modeled. When melt migration takes place in these systems, mixing at the interface between the layers takes place and high melt fractions form in very short time and temperatures reduce locally. Heating the column from below leads to the formation of high melt fraction layers which rise with time. As these melt layers rise, incompatible trace elements preferentially enter the melt and are transported upwards, while compatible elements are transported downwards in the solid. Bulk composition also varies with the melt layer being enriched in one component and the base of the column in the other. Finally, a uniform column initially at a temperature above the solidus, cooled from above and below is modeled. The resulting major component and trace element distributions show a distinctive S-shape as a result of melt migration. Both these boundary conditions indicate that melt migration during melting and freezing in the continental crust can lead to complex geochemical histories. Results show that the transport of melt relative to matrix in systems undergoing buoyancy driven melt segregation are an important driver in generating chemical diversity. Composition and trace element concentration vary both temporally and spatially as a result of melt transport, behavior not captured without species transport. JF - American Geophysical Union Fall Meeting AU - Solano, J AU - Jackson, M AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract V12B EP - 05 PB - American Geophysical Union, Washington, DC VL - 2011 KW - segregation KW - partial melting KW - continental crust KW - solid solution KW - melts KW - temperature KW - buoyancy KW - models KW - magma transport KW - transport KW - phase equilibria KW - magmas KW - heat transfer KW - trace elements KW - chemical composition KW - geochemistry KW - magma chambers KW - crust KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1612261487?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Modelling+of+compositional+variation+as+a+result+of+species+transport+during+melt+segregation&rft.au=Solano%2C+J%3BJackson%2C+M%3BAnonymous&rft.aulast=Solano&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-10-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - buoyancy; chemical composition; continental crust; crust; geochemistry; heat transfer; magma chambers; magma transport; magmas; melts; models; partial melting; phase equilibria; segregation; solid solution; temperature; trace elements; transport ER - TY - JOUR T1 - Waiting for O2 AN - 1553089542; 2014-063150 AB - Oxygenic photosynthesis appears to be a necessary condition for the creation of an oxygen-rich atmosphere like Earth's. But available geological and geochemical evidence suggests that oxygenic photosynthesis appeared hundreds of millions of years before the oxygen-rich atmosphere was fully established. The interregnum implies that at least one other necessary condition for O2 had to be met. Here we argue that the second condition was the irreversible oxidation of the surface and crust by hydrogen escape. This is the same cause as it is for other planets with oxidized surfaces, such as Mars. The link between hydrogen escape and oxygen is direct because the primary process in oxygenic photosynthesis is splitting H2O into hydrogen and O2. Gradual oxidation of the surface and crust eventually brought Earth to a tipping point where free O2 became more stable than competing reduced gases such as CH4; or put another way, the system evolved to the point where surface oxidation under a reducing atmosphere could not keep pace with hydrogen escape. Because hydrogen escape is no faster than other geological processes that govern the long-term redox budget of the atmosphere, the approach to oxygen's final triumph would have been fitful and punctuated by episodes of oxygenation, as the record suggests was the case. The duration of the interregnum was determined by the rate of hydrogen escape and by the size of the reduced reservoir that needed to be oxidized before O2 became favored. If hydrogen escape was responsible for O2, it may be possible to account for the rough constancy of delta (super 13) C as a rough constancy of the H2/CO2 ratio in volcanic gases that follows from the constancy of the mantle's oxygen fugacity and a rough constancy in the H2O/CO2 ratio in subducted materials. JF - American Geophysical Union Fall Meeting AU - Zahnle, K J AU - Catling, D C AU - Claire, M AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract U11C EP - 07 PB - American Geophysical Union, Washington, DC VL - 2011 KW - photosynthesis KW - Earth KW - oxygen KW - isotopes KW - isotope ratios KW - paleoatmosphere KW - oxidation KW - C-13/C-12 KW - photochemistry KW - mantle KW - Mars KW - stable isotopes KW - fugacity KW - carbon dioxide KW - terrestrial planets KW - planets KW - volcanism KW - hydrogen KW - carbon KW - Eh KW - crust KW - 12:Stratigraphy KW - 04:Extraterrestrial geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1553089542?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Waiting+for+O2&rft.au=Zahnle%2C+K+J%3BCatling%2C+D+C%3BClaire%2C+M%3BAnonymous&rft.aulast=Zahnle&rft.aufirst=K&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-08-14 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - C-13/C-12; carbon; carbon dioxide; crust; Earth; Eh; fugacity; hydrogen; isotope ratios; isotopes; mantle; Mars; oxidation; oxygen; paleoatmosphere; photochemistry; photosynthesis; planets; stable isotopes; terrestrial planets; volcanism ER - TY - JOUR T1 - Moon 101; introducing students to lunar science and exploration AN - 1553086169; 2014-061007 AB - Moon 101 is designed with the purpose of familiarizing students with lunar geology and exploration. Armed with guiding questions, students read articles covering various lunar science topics and browse images from past and current lunar missions to familiarize themselves with available lunar data sets. Moon 101 was originally created for high school students preparing to conduct open-inquiry, lunar research. Most high school students' knowledge of lunar science is limited to lunar phases and tides, and their knowledge of lunar exploration is close to non-existent. Moon 101 provides a summary of the state of knowledge of the Moon's formation and evolution, and the exploration that has helped inform the lunar science community. Though designed for high school students, Moon 101 is highly appropriate for the undergraduate classroom, especially at the introductory level where resources for teaching lunar science are scarce. Moon 101 is comprised of two sections covering lunar science (formation and geologic evolution of the Moon) and one section covering lunar exploration. Students read information on the formation and geologic evolution of the Moon from sources such as the Planetary Science Research Discoveries (PSRD) website and the USGS professional paper A Geologic History of the Moon by Wilhelms. While these resources are not peer-reviewed journals, the information is presented at a level more advanced than articles from newspapers and popular science magazines. This ensures that the language is accessible to students who do not have a strong lunar/planetary science background, or a strong science background in general. Formation readings include information on older and current formation hypotheses, including the Giant Impact Hypothesis, the Magma Ocean hypothesis, and the age of the lunar crust. Lunar evolution articles describe ideas such as the Late Heavy Bombardment and geologic processes such as volcanism and impact cratering. After reading the articles, students are asked a series of questions which help reinforce the lunar science concepts they should take away from the readings. Students then use their new knowledge of the Moon in the final section of Moon 101 where they are asked to characterize the geology of the region surrounding the Apollo 11 landing site. To do this, they conduct a survey of available lunar data, examining imagery from lunar missions as recent as the Lunar Reconnaissance Orbiter and as old as the Ranger missions of the 1960s. This allows students to explore the available datasets and identify the advantages and disadvantages of each. Pre/post test questions have also been developed to assess changes in student understanding of the formation and evolution of the Moon, and lunar exploration. Moon 101 is a framework for introducing students to lunar science, and can be followed up with student-driven research. Moon 101 can be easily modified to suit the needs of the students and the instructor. Because lunar science is an evolving field of study, the use of resources such as the PSRD allows Moon 101 to be flexible and to change as the lunar community re-discovers our celestial neighbor. JF - American Geophysical Union Fall Meeting AU - Shaner, A J AU - Shipp, S S AU - Allen, J S AU - Kring, D A AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract ED13B EP - 0820 PB - American Geophysical Union, Washington, DC VL - 2011 KW - imagery KW - high school KW - Moon KW - landform evolution KW - education KW - elementary geology KW - models KW - K-12 education KW - lunar crust KW - surface features KW - curricula KW - interpretation KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1553086169?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Moon+101%3B+introducing+students+to+lunar+science+and+exploration&rft.au=Shaner%2C+A+J%3BShipp%2C+S+S%3BAllen%2C+J+S%3BKring%2C+D+A%3BAnonymous&rft.aulast=Shaner&rft.aufirst=A&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/ED/sessions/ED13B/abstracts/ED13B-0820.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-08-14 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - curricula; education; elementary geology; high school; imagery; interpretation; K-12 education; landform evolution; lunar crust; models; Moon; surface features ER - TY - JOUR T1 - Time resolved global dust source function using satellite observations; its development and application in a global aerosol model AN - 1553085955; 2014-060985 AB - Dust is the major atmospheric aerosol that affects Earth environment and climate systems. Like regional scale numerical models, global models have shown reasonable dust simulations compared against surface, air, and space born observations. Unlike regional scale models that are focusing on specific deserts, global models have to deal with all kinds of deserts so that they usually adopt higher-level simplifications in various processes, and dust erodibility is one of these uncertainties. We have developed a time resolved dust source function in the Goddard Chemistry Aerosol Radiation and Transport (GOCART) using the Advanced Very High Resolution Radiometer satellite (AVHRR)-Normalized Difference Vegetation Index (NDVI) to better constrain dust erodibility. NDVI is defined as the ratio of the difference between Near IR radiation and Visible radiation to the sum of the two and it describes the sensitivity of surface bareness to its vegetation cover. Our results show that the new erodibility derived from the NDVI reflects better seasonality of dust emission by modulating dust emissions on top of other variables such as wind, soil wetness, land-type, and soil temperature. We also found that some deserts show significantly different erodibility between old and new source functions, but not every desert show the same responses. We evaluated our approaches for dust simulation by comparing the modeled Aerosol Optical Depth (AOD) with the AERONET, MODIS, and MISR AODs. More detailed results will be discussed further. JF - American Geophysical Union Fall Meeting AU - Kim, D AU - Chin, M AU - Bian, H AU - Tan, Q AU - Diehl, T AU - Zheng, T AU - You, R AU - Brown, M E AU - Kucsera, T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract A51E EP - 09 PB - American Geophysical Union, Washington, DC VL - 2011 KW - numerical models KW - clastic sediments KW - data acquisition KW - global KW - data processing KW - atmosphere KW - troposphere KW - satellite methods KW - boundary interactions KW - models KW - hydrologic cycle KW - transport KW - dust KW - sediments KW - aerosols KW - particulate materials KW - climate forcing KW - climate KW - remote sensing KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1553085955?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Time+resolved+global+dust+source+function+using+satellite+observations%3B+its+development+and+application+in+a+global+aerosol+model&rft.au=Kim%2C+D%3BChin%2C+M%3BBian%2C+H%3BTan%2C+Q%3BDiehl%2C+T%3BZheng%2C+T%3BYou%2C+R%3BBrown%2C+M+E%3BKucsera%2C+T%3BAnonymous&rft.aulast=Kim&rft.aufirst=D&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/A/sessions/A51E/abstracts/A51E-09.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-08-14 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - aerosols; atmosphere; boundary interactions; clastic sediments; climate; climate forcing; data acquisition; data processing; dust; global; hydrologic cycle; models; numerical models; particulate materials; remote sensing; satellite methods; sediments; transport; troposphere ER - TY - JOUR T1 - Mineralogy and geochemistry of Coast Range Ophiolite, CA rock cores keys to understanding subsurface serpentinite habitability on Mars AN - 1545407032; 2014-024659 AB - Biologically habitable systems on the surface of Mars are deemed impossible for two reasons: the pressure on the surface is too low to permit liquid water to persist, and the levels of cosmic radiation that reach the surface would sterilize any living organisms. Thus any habitable systems are limited to subsurface environment. Serpentinization-fueled life is an example of life thriving in the subsurface, where appropriate parent rock and liquid water co-exist. Serpentinization is the reaction to alter olivine end members fayalite and forsterite to serpentine. The iron hydroxide product can be oxidized to form magnetite as water reduces to form diatomic hydrogen. 5Mg (sub 2) SiO (sub 4) (forsterite) + 9H (sub 2) O + Fe (sub 2) SiO (sub 4) (fayalite) --> 3Mg (sub 3) Si (sub 2) O (sub 5) (OH) (sub 4) (serpentine) Mg(OH) (sub 2) (brucite) + 2Fe(OH) (sub 2) (iron hydroxide) + 3Fe(OH) (sub 2) (iron hydroxide) --> Fe (sub 3) O (sub 4) (magnetite) + 2H (sub 2) O + H (sub 2) H2 is a necessary component for some chemosynthetic life, and is a product of serpentinization in which Fe-rich olivines alter to magnetite-rich serpentinite. Since serpentinites are known host rocks for chemosynthetic life (e.g., the submarine Lost City Hydrothermal Field hosts a methane-cycling microbial consortium, Kelley et al., 2005), we can intimate that Mars could very possibly contain an environment supportive of life. Our focus is on the Martian subsurface environment, which is protected from radiation and likely host to groundwater flow. Evidence for such flow is seen in larger Martian valleys, which display geomorphic features associated with groundwater seepage and surface runoff (Malin and Edgett 2000); and from fluvial sediments composed of sulfate-rich grains (Andrews-Hanna et al 2007). Given support for subsurface groundwater flow, was serpentinization common on Mars in the past? Can modern serpentinization on Mars occur? If so, what would the host rocks look like? We approach these questions by studying an analog for serpentinizing settings on Mars at the McLaughlin Reserve (MCL) in the Coast Range Ophiolite in California, where altered peridotites crop out in serpentine barrens. The same rocks have been detected in certain regions of Mars (Ehlmann et al., 2009), and we seek field, mineral, and geochemical evidence that MCL is an apt point of comparison. Specifically, we will be looking at two cores from MCL, each cored to approximately 50 m depth and 5 cm in diameter. Assays of host rock and altered horizons using XRD, XRF, and thin-section petrography will be employed to constrain the hydrogen production possible with this particular serpentinite assemblage. We will make the case for MCL as a strong terrestrial analog for serpentinite bodies on Mars, and consider the implications of a similar mineral and geochemical "habitat" for the Martian subsurface. Schulte, M et al (2006) Astrobiology, Vol 6, No 2 Ehlmann et al. (2009) Journal of Geophysical Research, Vol 114 E00D08 Kelley et al, (2005) Science 307 (5714): 1428-1434 Malin and Edgett (2000) Science, 288, 2330-2335 Andrews-Hannah and Phillips (2007) Journal of Geophysical Research Vol 12 E08001 JF - American Geophysical Union Fall Meeting AU - Carnevale, D AU - Cardace, D AU - McCann, A R AU - Hoehler, T M AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract B51B EP - 0401 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - serpentinization KW - petrology KW - Coast Range Ophiolite KW - Jurassic KW - metabolism KW - igneous rocks KW - biochemistry KW - Mars KW - ecosystems KW - metasomatism KW - Mesozoic KW - ultramafics KW - exploration KW - terrestrial planets KW - California KW - planets KW - habitat KW - plutonic rocks KW - mineral composition KW - ecology KW - chemical composition KW - microorganisms KW - 04:Extraterrestrial geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1545407032?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Mineralogy+and+geochemistry+of+Coast+Range+Ophiolite%2C+CA+rock+cores+keys+to+understanding+subsurface+serpentinite+habitability+on+Mars&rft.au=Carnevale%2C+D%3BCardace%2C+D%3BMcCann%2C+A+R%3BHoehler%2C+T+M%3BAnonymous&rft.aulast=Carnevale&rft.aufirst=D&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-07-17 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - biochemistry; California; chemical composition; Coast Range Ophiolite; ecology; ecosystems; exploration; habitat; igneous rocks; Jurassic; Mars; Mesozoic; metabolism; metasomatism; microorganisms; mineral composition; petrology; planets; plutonic rocks; serpentinization; terrestrial planets; ultramafics; United States ER - TY - JOUR T1 - Methane and other greenhouse gas measurements from aircraft in Alaska; 2009-2011 AN - 1542639180; 2014-045292 AB - Due to their huge potential impact on the Earth's warming, methane (CH4) emissions in the Arctic are currently widely-studied and debated in the carbon cycle community. Emissions from carbon stored in Arctic soil are projected to increase as the region warms and the permafrost thaws, creating a potent feedback mechanism for climate change. This year, NASA's Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE) began multi-year aircraft measurements in Alaska, which, coupled with regional modeling of methane fluxes, will evaluate and quantify the effect of regional climate change on ecosystem CO2 and CH4 fluxes. A crucial component of such regional modeling is the choice of background mixing ratio for a given atmospheric sample. A recent addition to the NOAA/GMD aircraft program provides valuable information on background mixing ratios for the Alaskan interior and provides insight into the seasonal cycle and inter-annual variability as well as spatial and temporal context for the measurements being made during the CARVE campaigns. The NOAA/GMD aircraft program began new, ongoing greenhouse gas measurements in Alaska in 2009 (complementing existing ground stations at Barrow and Cold Bay, and a flask-only aircraft site outside of Fairbanks), through a collaboration with the U.S. Coast Guard. Bi-weekly Arctic Domain Awareness flights on C-130 aircraft generally begin in Kodiak, continue to Barrow, and return back to Kodiak after altitude profiles over Kivalina and Galena. On-board measurements include continuous CO2, CH4, CO, and ozone, as well as 24 flask samples analyzed at NOAA for CO2, CH4, CO, and 50 additional gases. In addition to spanning a large geographic region, the measurements also span the entire growing season, from late March to late November each year. We will present data from 2009 - 2011, with a focus on Arctic CH4. The measurements provide us with additional understanding of the various influences on the seasonal cycles of CH4 and CO2: stratospheric mixing, transport from lower latitudes, and boundary layer processes. They also provide an assessment of potential regional sources of CH4, such as those that may exist in the Arctic Ocean. Our measurements are a valuable tool for regional Arctic modeling efforts seeking to validate boundary conditions from global models, such as CarbonTracker-CH4, and contribute to scientific knowledge of CH4 emissions in the high northern latitudes. JF - American Geophysical Union Fall Meeting AU - Karion, A AU - Sweeney, C AU - Wolter, S AU - Patrick, L AU - Newberger, T AU - Chen, H AU - Oltmans, S J AU - Bruhwiler, L AU - Miller, C E AU - Dlugokencky, E J AU - Tans, P P AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract GC43C EP - 0946 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - data acquisition KW - government agencies KW - data processing KW - aliphatic hydrocarbons KW - Barrow Alaska KW - carbon dioxide KW - air pollution KW - ozone KW - Carbon in Arctic Reservoirs Vulnerability Experiment KW - carbon KW - arctic environment KW - ecology KW - soils KW - programs KW - concentration KW - methane KW - pollution KW - alkanes KW - research KW - measurement KW - geochemical cycle KW - carbon monoxide KW - organic compounds KW - NASA KW - aircraft KW - hydrocarbons KW - Kodiak Island KW - Alaska KW - greenhouse gases KW - carbon cycle KW - airborne methods KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1542639180?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Methane+and+other+greenhouse+gas+measurements+from+aircraft+in+Alaska%3B+2009-2011&rft.au=Karion%2C+A%3BSweeney%2C+C%3BWolter%2C+S%3BPatrick%2C+L%3BNewberger%2C+T%3BChen%2C+H%3BOltmans%2C+S+J%3BBruhwiler%2C+L%3BMiller%2C+C+E%3BDlugokencky%2C+E+J%3BTans%2C+P+P%3BAnonymous&rft.aulast=Karion&rft.aufirst=A&rft.date=2011-12-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/GC/sessions/GC43C/abstracts/GC43C-0946.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-07-04 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - air pollution; airborne methods; aircraft; Alaska; aliphatic hydrocarbons; alkanes; arctic environment; Barrow Alaska; carbon; carbon cycle; carbon dioxide; Carbon in Arctic Reservoirs Vulnerability Experiment; carbon monoxide; concentration; data acquisition; data processing; ecology; geochemical cycle; government agencies; greenhouse gases; hydrocarbons; Kodiak Island; measurement; methane; NASA; organic compounds; ozone; pollution; programs; research; soils; United States ER - TY - JOUR T1 - Enhanced synthesis of alkyl amino acids in Miller's 1958 H (sub 2) S experiment AN - 1524611036; 2014-030923 AB - Stanley Miller's 1958 H (sub 2) S-containing experiment, which included a simulated prebiotic atmosphere of methane (CH (sub 4) ), ammonia (NH (sub 3) ), carbon dioxide (CO (sub 2) ), and hydrogen sulfide (H (sub 2) S) produced several alkyl amino acids, including the alpha -, beta -, and gamma -isomers of aminobutyric acid (ABA) in greater relative yields than had previously been reported from his spark discharge experiments. In the presence of H (sub 2) S, aspartic and glutamic acids could yield alkyl amino acids via the formation of thioimide intermediates. Radical chemistry initiated by passing H (sub 2) S through a spark discharge could have also enhanced alkyl amino acid synthesis by generating alkyl radicals that can help form the aldehyde and ketone precursors to these amino acids. We propose mechanisms that may have influenced the synthesis of certain amino acids in localized environments rich in H (sub 2) S and lightning discharges, similar to conditions near volcanic systems on the early Earth, thus contributing to the prebiotic chemical inventory of the primordial Earth. Copyright 2011 Springer Science+Business Media B.V. JF - Origins of Life and Evolution of the Biosphere AU - Parker, Eric T AU - Cleaves, H James AU - Callahan, Michael P AU - Dworkin, Jason P AU - Glavin, Daniel P AU - Lazcano, Antonio AU - Bada, Jeffrey L Y1 - 2011/12// PY - 2011 DA - December 2011 SP - 569 EP - 574 PB - Springer, Dordrecht VL - 41 IS - 6 SN - 0169-6149, 0169-6149 KW - experimental studies KW - Miller, Stanley KW - biochemistry KW - liquid chromatograms KW - mass spectra KW - hydrogen sulfide KW - life origin KW - laboratory studies KW - organic compounds KW - organic acids KW - lightning KW - chemical reactions KW - volcanism KW - chromatograms KW - amino acids KW - spectra KW - electrical currents KW - 08:General paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1524611036?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.atitle=Enhanced+synthesis+of+alkyl+amino+acids+in+Miller%27s+1958+H+%28sub+2%29+S+experiment&rft.au=Parker%2C+Eric+T%3BCleaves%2C+H+James%3BCallahan%2C+Michael+P%3BDworkin%2C+Jason+P%3BGlavin%2C+Daniel+P%3BLazcano%2C+Antonio%3BBada%2C+Jeffrey+L&rft.aulast=Parker&rft.aufirst=Eric&rft.date=2011-12-01&rft.volume=41&rft.issue=6&rft.spage=569&rft.isbn=&rft.btitle=&rft.title=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.issn=01696149&rft_id=info:doi/10.1007%2Fs11084-011-9253-2 L2 - http://www.springerlink.com/content/1573-0875/ LA - English DB - GeoRef N1 - Conference title - ORIGINS 2011 N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2014-01-01 N1 - Number of references - 16 N1 - Document feature - illus. N1 - SuppNotes - NSF Grant CHE-1004570 N1 - Last updated - 2014-05-15 N1 - CODEN - OGLFAU N1 - SubjectsTermNotLitGenreText - amino acids; biochemistry; chemical reactions; chromatograms; electrical currents; experimental studies; hydrogen sulfide; laboratory studies; life origin; lightning; liquid chromatograms; mass spectra; Miller, Stanley; organic acids; organic compounds; spectra; volcanism DO - http://dx.doi.org/10.1007/s11084-011-9253-2 ER - TY - JOUR T1 - Investigation of the crust of the Pannonian Basin, Hungary using low-altitude CHAMP horizontal magnetic gradient anomalies AN - 1492583988; 2014-004963 AB - The Pannonian Basin is a deep intracontinental basin that formed as part of the Alpine orogeny. It is some 600 by 500 km in area and centered on Hungary. This region was chosen since it has one of the thinnest continental crusts in Europe and is the location of complex tectonic structures. In order to study the nature of the crustal basement we used the long-wavelength magnetic anomalies acquired by the CHAMP satellite. The SWARM constellation, scheduled to be launched next year, will have two lower altitude satellites flying abreast, with a separation of between ca. 150 to 200 km. to record the horizontal magnetic gradient. Since the CHAMP satellite has been in orbit for eight years and has obtained an extensive range of data, both vertically and horizontally there is a large enough data base to compute the horizontal magnetic gradients over the Pannonian Basin region using these many CHAMP orbits. We computed a satellite magnetic anomaly map, using the spherical-cap method of Haines (1985), the technique of Alsdorf et al. (1994) and from spherical harmonic coefficients of MF6 (Maus et al., 2008) employing recent and lowest altitude CHAMP data. We then computed the horizontal magnetic anomaly gradients (Kis and Puszta, 2006) in order to determine how these component data will improve our interpretation and to preview what the SWARM mission will reveal with reference to the horizontal gradient anomalies. The gradient amplitude of an 1000 km northeast-southwest profile through our horizontal component anomaly map varied from 0 to 0.025 nT/km with twin positive anomalies (0.025 and 0.023 nT/km) separated by a sharp V-shaped anomaly gradient to 0 nT/km between the two highs. Horizontal gradients indicate major magnetization boundaries in the crust (Dole and Jordan, 1978 and Cordell and Grauch, 1985). Our gradient anomaly was modeled with a two-dimensional body and this anomaly indicates a lateral variation of some 200 km. The model correlates with a 200 km area of crustal thinning in the southwestern Pannonian Basin. JF - American Geophysical Union Fall Meeting AU - Taylor, P T AU - Kis, K I AU - Puszta, S AU - Wittman, G AU - Kim, H AU - Toronyi, B AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract GP21A EP - 0987 PB - American Geophysical Union, Washington, DC VL - 2011 KW - Pannonian Basin KW - geophysical surveys KW - crustal thinning KW - geophysical methods KW - data processing KW - magnetic methods KW - magnetic anomalies KW - Europe KW - satellite methods KW - Hungary KW - Central Europe KW - data bases KW - CHAMP KW - basins KW - surveys KW - tectonics KW - crust KW - 18:Solid-earth geophysics KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1492583988?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Investigation+of+the+crust+of+the+Pannonian+Basin%2C+Hungary+using+low-altitude+CHAMP+horizontal+magnetic+gradient+anomalies&rft.au=Taylor%2C+P+T%3BKis%2C+K+I%3BPuszta%2C+S%3BWittman%2C+G%3BKim%2C+H%3BToronyi%2C+B%3BAnonymous&rft.aulast=Taylor&rft.aufirst=P&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-01-30 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - basins; Central Europe; CHAMP; crust; crustal thinning; data bases; data processing; Europe; geophysical methods; geophysical surveys; Hungary; magnetic anomalies; magnetic methods; Pannonian Basin; satellite methods; surveys; tectonics ER - TY - JOUR T1 - SCARF; the Swarm satellite constellation application and research facility AN - 1492583965; 2014-004956 AB - In order to take advantage of the unique constellation aspect of the Swarm mission, considerably advanced data analysis tools will need to be developed. Scientific use of data from the Swarm mission will also benefit significantly from derived products, the so-called Level-2 products, that take into account the features of the constellation. For this reason ESA has established a "Satellite Constellation Application and Research Facility" (SCARF), in the form of a consortium of several research institutions. A number of Level-2 data products will be offered by this consortium, including various models of the core and lithospheric field, as well as of the ionospheric and magnetospheric field. In addition, derived parameters like mantle conductivity, thermospheric mass density and winds, field-aligned currents, an ionospheric plasma bubble index, the ionospheric total electron content and the dayside equatorial zonal electrical field will be calculated. Following the end of the currently running 30-month development phase, this service is expected to be operational for a period of 5 years after the launch of the Swarm Mission, which is scheduled for summer 2012. All of the derived products will be available through the Swarm Payload Data Ground Segment (PDGS), located at ESRIN, the ESA Centre for Earth Observation in Frascati, Italy. JF - American Geophysical Union Fall Meeting AU - Olsen, N AU - Alken, P AU - Beggan, C AU - Chulliat, A AU - Doornbos, E AU - Floberghagen, R AU - Friis-Christensen, E A AU - Hamilton, B AU - Hulot, G AU - van den Ijssel, J AU - Kuvshinov, A V AU - Lesur, V AU - Luhr, H AU - Macmillan, S AU - Maus, S AU - Olsen, P H AU - Park, J AU - Plank, G AU - Ritter, P AU - Rother, M AU - Sabaka, T J AU - Stolle, C AU - Thebault, E AU - Thomson, A W AU - Toffner-Clausen, L AU - Velimsky, J AU - Visser, P N AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract GP21A EP - 0980 PB - American Geophysical Union, Washington, DC VL - 2011 KW - SCARF KW - ionosphere KW - lithosphere KW - Swarm Mission KW - satellite methods KW - research KW - information management KW - data management KW - models KW - geodynamics KW - core KW - design KW - remote sensing KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1492583965?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=SCARF%3B+the+Swarm+satellite+constellation+application+and+research+facility&rft.au=Olsen%2C+N%3BAlken%2C+P%3BBeggan%2C+C%3BChulliat%2C+A%3BDoornbos%2C+E%3BFloberghagen%2C+R%3BFriis-Christensen%2C+E+A%3BHamilton%2C+B%3BHulot%2C+G%3Bvan+den+Ijssel%2C+J%3BKuvshinov%2C+A+V%3BLesur%2C+V%3BLuhr%2C+H%3BMacmillan%2C+S%3BMaus%2C+S%3BOlsen%2C+P+H%3BPark%2C+J%3BPlank%2C+G%3BRitter%2C+P%3BRother%2C+M%3BSabaka%2C+T+J%3BStolle%2C+C%3BThebault%2C+E%3BThomson%2C+A+W%3BToffner-Clausen%2C+L%3BVelimsky%2C+J%3BVisser%2C+P+N%3BAnonymous&rft.aulast=Olsen&rft.aufirst=N&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-01-30 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - core; data management; design; geodynamics; information management; ionosphere; lithosphere; models; remote sensing; research; satellite methods; SCARF; Swarm Mission ER - TY - JOUR T1 - Linking geomagnetic data to dynamo models via variational data assimilation AN - 1492583650; 2014-005027 AB - The increased resolution and accuracy of both the geomagnetic field models and observations in recent years has resulted in increased efforts to link theory to data via data assimilation (DA) techniques similar to those previously developed in the atmospheric and oceanic communities . If applied to the geomagnetic field, DA has potential to improve both models and observations: geodynamics models can be assessed and improved based on observational constraints to better understand the physics of the core dynamics; the improved models can then be used to (1) constrain "hidden" components of the state of the geodynamo that are not directly observable, (2) more accurately forecast the geomagnetic fields and (3) hindcast and improve past geomagnetic field models. DA methods can be broadly divided into two approaches: sequential and variational. In sequential DA, observations are combined with the current model state to produce a new state estimate, which is then used as the initial state for the next model forecast. As such, sequential DA leads to discontinuous model state, and observations can influence only the future model state. Variational DA differs from sequential DA in that the goal is a global adjustment of the model trajectory to fit simultaneously all the data. Thus in the variational approach, observations at a later time could influence the model solution at an earlier time. Both sequential and variational DA has been applied to simplified dynamic models (e.g.Sun et al. [2007], Fournier et al. [2007]), and sequential DA has been applied to full dynamo models (e.g. Liu et al. [2007], Kuang et al. [2008]). However, since the best data is from recent years, sequential schemes can't readily project this data backwards in time. We present an update to our ongoing efforts to implement modern variational DA methods (based on theory of representers, potentially allowing for weak constraint DA) for the Modular Scalable Self-consistent Three-dimensional (MoSST) geodynamo simulator. An implementation of variational DA requires developing tangent linear (TL) and adjoint (ADJ) codes for the nonlinear forcing and the three different time stepping schemes. We use the previously coded TL (Dimitrova et al. [2010]) to characterize the stability of the linearization for a range of dynamo parameters (thermal Rayleigh and Prandtl numbers, Ekman number, etc.). The TL relies on a checkpoint strategy to store the forward(background) simulation trajectory around which the TL is computed, and hence we characterize the growth of the error in linearization with increased spacing of the background checkpoints. We will present our results in reference to (i) the magnetic diffusivity time scale and (ii) dynamically calculated secular-variation time scale following Lhuillier et al. [2011]. The adjoint to the model requires adjoints to three distinct components: the linear matrices, whose adjoint is the matrix transpose as well as the non-linear functions and time-stepping schemes whose adjoint is more complex. We will discuss how the latter two adjoints are derived and implemented. JF - American Geophysical Union Fall Meeting AU - Dimitrova, L L AU - Egbert, G D AU - Kuang, W AU - Jiang, W AU - Tangborn, A AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract GP24B EP - 01 PB - American Geophysical Union, Washington, DC VL - 2011 KW - models KW - geodynamics KW - numerical models KW - three-dimensional models KW - mathematical methods KW - dynamos KW - data processing KW - data assimilation KW - magnetic field KW - variations KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1492583650?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Linking+geomagnetic+data+to+dynamo+models+via+variational+data+assimilation&rft.au=Dimitrova%2C+L+L%3BEgbert%2C+G+D%3BKuang%2C+W%3BJiang%2C+W%3BTangborn%2C+A%3BAnonymous&rft.aulast=Dimitrova&rft.aufirst=L&rft.date=2011-12-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-01-30 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - data assimilation; data processing; dynamos; geodynamics; magnetic field; mathematical methods; models; numerical models; three-dimensional models; variations ER - TY - JOUR T1 - Effects of basin-forming impacts on the historical Martian dynamo AN - 1438972837; 2013-076691 AB - It is now well accepted that Mars had an active dynamo in its early history [1-2], evidenced by the strong remanent crustal field observed by Mars Global Surveyor [3]. Recent studies [4] show a strong correlation between the timing of the dynamo termination and giant impacts (forming basins greater than 1000 km in diameter) during the mid-Noachian period. Further modeling studies [5-9] suggest that such impacts could generate a strong thermal heterogeneity in the deep interior. These results imply that giant impacts may play an important role in terminating the Martian dynamo via several possibilities, e.g., a small perturbation ending permanently a subcritical dynamo, or a strong thermal heterogeneity destroying a supercritical dynamo. To better understand the effects of basin-forming impacts on Martian dynamo, we simulate the Martian dynamo with a heterogeneous heat flux across the core mantle boundary arising from the shock heating from such impacts (e.g., Utopia). Our initial results show that depending on the location, the influence of the impacts can be catastrophic: a modest thermal heterogeneity from an impact in the equatorial region can destroy a strong field dynamo. However, if the same impact occurred near the polar region, the effect on the dynamo is minimal. These results could have implications on other geodynamic processes, e.g. paleo polar motion of Mars. References: [1] Acuna, M. H. et al. (1999), Science, 284, 790-793. [2] Arkani-Hamed, J. and D. Boutin (2004), JGR, 109, E03011. [3] Acuna, M. H. et al. (2001), JGR, 106, 23, 403-23, 417. [4] Lillis, R. J. et al. (2008), GRL, 35, L14203. [5] Watters et al. (2009), JGR, 114, E02001 [6] Roberts, J. H. et al. (2009), JGR, 114, E04009. [7] Arkani-Hamed and Olson (2010), JGR, 115, E07012. [8] Arkani-Hamed and Ghods (2011), Icarus, 212, 920-934. [9] Roberts and Arkani-Hamed (2011), Icarus, in review. JF - American Geophysical Union Fall Meeting AU - Jiang, W AU - Kuang, W AU - Roberts, J H AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract DI51B EP - 2148 PB - American Geophysical Union, Washington, DC VL - 2011 KW - Noachian KW - dynamos KW - magnetization KW - paleomagnetism KW - Mars KW - impacts KW - terrestrial planets KW - planets KW - remanent magnetization KW - observatories KW - planetary interiors KW - Mars Global Surveyor Program KW - crust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1438972837?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Effects+of+basin-forming+impacts+on+the+historical+Martian+dynamo&rft.au=Jiang%2C+W%3BKuang%2C+W%3BRoberts%2C+J+H%3BAnonymous&rft.aulast=Jiang&rft.aufirst=W&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.agu.org/meetings/fm11/waisfm11.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2013-01-01 N1 - PubXState - DC N1 - Last updated - 2013-10-03 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - crust; dynamos; impacts; magnetization; Mars; Mars Global Surveyor Program; Noachian; observatories; paleomagnetism; planetary interiors; planets; remanent magnetization; terrestrial planets ER - TY - JOUR T1 - The role of forcing and internal dynamics in explaining the "medieval climate anomaly" AN - 1316423437; 638272-100 AB - Proxy reconstructions suggest that peak global temperature during the past warm interval known as the Medieval Climate Anomaly (MCA, roughly 950-1250 AD) has been exceeded only during the most recent decades. However, our understanding of the origin of the MCA is still fragmentary. Simulations using coupled climate models typically fail to reproduce many key features, both in the magnitude and timing, of the MCA. Using model simulations constrained by data assimilation, we obtain here the spatial pattern of temperature changes in the MCA that is most consistent with forcing estimates, model physics and the empirical information contained in paleoclimate proxy records. These experiments demonstrate that the observed spatial temperature pattern of the MCA can be explained by a simple thermodynamical response to relatively weak changes in radiative forcing combined with a modification of the atmospheric circulation, similar to the positive phase of the so-called Arctic Oscillation, and with northward shifts in the position of ocean western boundary current systems including the Gulf Stream and Kuroshio currents. The mechanisms underlying the MCA are thus quite different from anthropogenic mechanisms responsible for modern global warming. JF - American Geophysical Union Fall Meeting AU - Goosse, H AU - Crespin, E AU - Dubinkina, S AU - Loutre, M AU - Mann, M E AU - Renssen, H AU - Sallaz-Damaz, Y AU - Shindell, D T Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract PP44B EP - 07 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1316423437?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+role+of+forcing+and+internal+dynamics+in+explaining+the+%22medieval+climate+anomaly%22&rft.au=Goosse%2C+H%3BCrespin%2C+E%3BDubinkina%2C+S%3BLoutre%2C+M%3BMann%2C+M+E%3BRenssen%2C+H%3BSallaz-Damaz%2C+Y%3BShindell%2C+D+T&rft.aulast=Goosse&rft.aufirst=H&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Forcings over the last millennium: Uncertainties and modelling strategies AN - 1316423429; 638272-99 AB - Simulations of climate over the last millennium (850-1850 CE) have been incorporated into the third phase of the Paleoclimate Modelling Intercomparison Project (PMIP3) and will be part of the CMIP5 database. The drivers of climate over this period are chiefly orbital, solar, volcanic, changes in land use/land cover and some variation in greenhouse gas levels. While some of these effects can be easily defined, the reconstructions of solar, volcanic and land use-related forcing are more uncertain. We will describe the approach taken in defining the scenarios for PMIP3 and the appropriate modelling strategies in light of uncertainties in the forcings, the climate reconstructions (the targets) and the imperfections in the models themselves. The potential for using these results to illuminate future projections will also be highlighted. JF - American Geophysical Union Fall Meeting AU - Schmidt, G A Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract PP44B EP - 06 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1316423429?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Forcings+over+the+last+millennium%3A+Uncertainties+and+modelling+strategies&rft.au=Schmidt%2C+G+A&rft.aulast=Schmidt&rft.aufirst=G&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Deglacial changes in tropical water isotopologues AN - 1316417311; 638268-24 AB - Holocene water isotope variability in Asian speleothems has been previously linked to alterations in landward water vapor transport, not local precipitation (LeGrande and Schmidt, 2009). Here we extend the simulated record of monsoonal water isotope changes through the deglaciation through a series of millennial time slices from 21,000 BP to 11,500 BP. During the Holocene, simulated changes over China show no correlation between local precipitation and [#14#]d18Oprec,but a strong correlation between d18Oprec and water vapor transport onto China from the Pacific. In India, d18Oprec changes are associated with not only water vapor transport changes onto land, but also precipitation changes. These relationships suggested that Holocene d18Oprec changes inferred from tropical interior Asian d18O records from speleothems are recording alterations in water vapor export out of the tropics, and not local changes in precipitation. Here we examine the changes over the deglaciation. During this time, not only are there alterations in orbital forcing, but also large changes in topography (including land-sea distribution) and greenhouse gases. We find that local precipitation is not the best interpretation of Asian speleothem d18Oprec variability. Rather, changes in the regional hydrologic cycle are most correlated with tropical isotope variability. Water isotopes are complex tracers of the hydrologic cycle, and record large-scale regional climate variability. As such, forward isotope models are valuable tools in interpreting their variability through time. JF - American Geophysical Union Fall Meeting AU - LeGrande, A N AU - Ullman, D J AU - Carlson, A E AU - Colose, C Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract PP21A EP - 1789 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1316417311?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Deglacial+changes+in+tropical+water+isotopologues&rft.au=LeGrande%2C+A+N%3BUllman%2C+D+J%3BCarlson%2C+A+E%3BColose%2C+C&rft.aulast=LeGrande&rft.aufirst=A&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - High-quality seismic observations of sonic booms AN - 1316416760; 638278-63 AB - The SonicBREWS project (Sonic Boom Resistant Earthquake Warning Systems) is a collaborative effort between Seismic Warning Systems, Inc. and NASA Dryden Flight Research Center. This project aims to evaluate the effects of sonic booms on Earthquake Warning Systems in order to prevent such systems from experiencing false alarms due to sonic booms. The airspace above the Antelope Valley, California includes the High Altitude Supersonic Corridor and the Black Mountain Supersonic Corridor. These corridors are among the few places in the US where supersonic flight is permitted, and sonic booms are commonplace in the Antelope Valley. One result of this project is a rich dataset of high-quality accelerometer records of sonic booms which can shed light on the interaction between these atmospheric phenomena and the solid earth. Nearly 100 sonic booms were recorded with low-noise triaxial MEMS accelerometers recording 1000 samples per second. The sonic booms had peak overpressures ranging up to approximately 10 psf and were recorded in three flight series in 2010 and 2011. Each boom was recorded with up to four accelerometers in various array configurations up to 100 meter baseline lengths, both in the built environment and the free field. All sonic booms were also recorded by nearby microphones. We present the results of the project in terms of the potential for sonic-boom-induced false alarms in Earthquake Warning Systems, and highlight some of the interesting features of the dataset. JF - American Geophysical Union Fall Meeting AU - Wurman, G AU - Haering, E A AU - Price, M AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract S31D EP - 2272 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - early warning systems KW - Sonic Boom Resistant Earthquake Warning Systems KW - High Altitude Supersonic Corridor KW - Black Mountain Supersonic Corridor KW - data processing KW - accelerometers KW - elastic waves KW - California KW - warning systems KW - data bases KW - sonic booms KW - false alarms KW - SonicBREWS Project KW - Black Mountain KW - atmosphere KW - Antelope Valley KW - noise KW - detection KW - aircraft KW - seismic waves KW - earthquakes KW - instruments KW - arrays KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1316416760?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=High-quality+seismic+observations+of+sonic+booms&rft.au=Wurman%2C+G%3BHaering%2C+E+A%3BPrice%2C+M%3BAnonymous&rft.aulast=Wurman&rft.aufirst=G&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - accelerometers; aircraft; Antelope Valley; arrays; atmosphere; Black Mountain; Black Mountain Supersonic Corridor; California; data bases; data processing; detection; early warning systems; earthquakes; elastic waves; false alarms; High Altitude Supersonic Corridor; instruments; noise; seismic waves; Sonic Boom Resistant Earthquake Warning Systems; sonic booms; SonicBREWS Project; United States; warning systems ER - TY - JOUR T1 - Key constraints on Earth's climate during the mid-Pliocene Warm Period AN - 1316415793; 638269-60 AB - The study of warm intervals of the Pliocene Epoch (Pliocene 'interglacials') is important for understanding the long-term response of the Earth System to current or near future concentrations of atmospheric CO2; as well as global mean temperatures that will be attained during this century. The Pliocene can yield constraints on Earth System Sensitivity which would help identify a target CO2 threshold that must not be crossed if humankind is to avoid dangerous levels of climate change in the long-term. For this endeavour to succeed it requires the merger of globally distributed geological records of Pliocene environments with state-of-the-art climate and Earth System Models. These processes/products provide an extraordinary scientific resource for studying global and regional Pliocene environments and climate dynamics. However, from the perspective of the 5th Intergovernmental Panel on Climate Change Assessment Report, arguably some of most pressing questions to ask Pliocene climate researchers are (a) how much did global mean temperatures increase, (b) how is this increase expressed in reconstructions of meridional sea-surface and surface temperature gradients, and (c) how well can current climate models reproduce the observed trends in meridional temperature gradients. For the mid-Pliocene Warm Period (mPWP nearly equal 3.3 to 3.0 Ma BP) we present a comprehensive review of geologically-constrained climate model estimates of global temperature change available within the published literature. We also include data from recent simulations completed as part of international Pliocene Model Intercomparison Project. Our analysis focuses on the range in model estimated global temperature change as well as consistent differences in global temperature change observed between models which use prescribed sea surface and sea-ice boundary conditions from geological estimates, versus simulations in which these parameters are predicted by the models themselves. We present a new reconstruction of the meridional sea-surface temperature (SST) gradient for the mPWP that places confidence limits on proxy-based SSTs for the first time. This step is essential to robustly evaluate the ability of models to reproduce warm climate states during the Pliocene. Initial interrogation of three world leading climate models (UK Hadley Centre HadCM3, NCAR-CCSM4 and GISS Model-E) indicates broad agreement between the models and proxy data in the tropics and Southern Hemisphere, but highlights a consistent underestimation of SST change by the models in the North Atlantic. This study provides the necessary scientific foundation for a focussed campaign of model sensitivity experiments to determine if these errors can be eliminated or reduced within the limits of our current understanding of Pliocene geological boundary conditions (e.g. CO2, palaeobathymetry etc.) as well as model capabilities. JF - American Geophysical Union Fall Meeting AU - Haywood, A M AU - Dowsett, H J AU - Otto-Bliesner, B L AU - Chandler, M A AU - Naish, T AU - Lunt, D J Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract PP24A EP - 05 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1316415793?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Key+constraints+on+Earth%27s+climate+during+the+mid-Pliocene+Warm+Period&rft.au=Haywood%2C+A+M%3BDowsett%2C+H+J%3BOtto-Bliesner%2C+B+L%3BChandler%2C+M+A%3BNaish%2C+T%3BLunt%2C+D+J&rft.aulast=Haywood&rft.aufirst=A&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Medieval loess constraints on the climate effect of dust aerosols in the Great Plains of North America AN - 1316405887; 638268-99 AB - Loess deposits in the Great Plains of North America, together with tree ring records, suggest the occurrence of medieval megadroughts within the past millenium when rainfall was below average over several decades. Loess results from the deposition of dust aerosols, created by wind erosion, perhaps following vegetation loss after extended drought. Dust aerosols have been previously shown to exacerbate the absence of rainfall during the twentieth century Dust Bowl, reinforcing the drought and loss of vegetation. Ocean temperatures in the equatorial Pacific make the predominant contribution to hydroclimate variability in this region, but dust may have had an amplifying effect during the medieval drought once the vegetation loss was sufficiently extensive. Here, we describe GCM experiments with dust aerosols created by wind erosion over medieval sources within North America. Our goal is twofold: first, to calculate the climate effect of dust, which is believed to reduce precipitation during the Dust Bowl. Second, we calculate dust deposition for comparison to the observed thickness of loess deposits. This comparison serves as a constraint upon the total dust mobilization and the aerosol effect upon precipitation, both of which depend upon the incompletely known source extent and its productivity. JF - American Geophysical Union Fall Meeting AU - Miller, R L AU - Cook, B I AU - Seager, R AU - Mason, J A Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract PP22D EP - 06 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1316405887?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Medieval+loess+constraints+on+the+climate+effect+of+dust+aerosols+in+the+Great+Plains+of+North+America&rft.au=Miller%2C+R+L%3BCook%2C+B+I%3BSeager%2C+R%3BMason%2C+J+A&rft.aulast=Miller&rft.aufirst=R&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Paleoclimate implications for climate sensitivity and human-made climate change AN - 1316400257; 638270-53 AB - Paleoclimate data help us assess climate sensitivity and potential human-made climate effects. We conclude that Earth in the warmest interglacial periods of the past million years was less than 1 degrees C warmer than in the Holocene. Polar warmth in these interglacials and in the Pliocene does not imply that a substantial cushion remains between today's climate and dangerous warming, but rather that Earth is poised to experience strong amplifying polar feedbacks in response to moderate global warming. Thus goals to limit human-made warming to 2 degrees C are not sufficient - they are prescriptions for disaster. Rapid reduction of fossil fuel emissions is required for humanity to succeed in preserving a planet resembling the one on which civilization developed. JF - American Geophysical Union Fall Meeting AU - Hansen, J E AU - Sato, M Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract PP32A EP - 08 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1316400257?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Paleoclimate+implications+for+climate+sensitivity+and+human-made+climate+change&rft.au=Hansen%2C+J+E%3BSato%2C+M&rft.aulast=Hansen&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - A long term meander evolution simulation: A model evaluation using the field data from Quinn River, Nevada AN - 1316399895; 638186-47 AB - Despite the ubiquity of meandering streams, there have been few field-based studies of the temporal evolution of meander planforms, including modeling of channel migration and spatial patterns of floodplain. The Quinn River, located in the east branch of the Black Rock Desert, Nevada is a sinuous channel that flows through lacustrine sediments on the floor of paleolake Lahontan where vegetation cover is sparse. It is still active and aerial photographs taken over the past 50 years show that significant modifications including meander cutoffs have occurred in the past 40 years. This provides good basis for testing the ability of flow and bank erosion models (e.g., Johannesson and Parker [1989]) to predict meander evolution pattern. Meander model developed by Howard [1992, 1996], which has its base on the Johannesson and Parker [1989] linearized model of flow through bends, was used to simulate forward evolution of the Quinn River starting from the 1972 centerline. The Quinn River lacks bars and has a nearly canal-like cross-section with a flat bed, thus it is an ideal channel to test predictions of bend evolution. The model was calibrated by using various data such as meander wavelength, channel cross-sectional shape, measurements of flow resistance based upon the field work, and timing of meander cutoffs to find the model results that best match the 2010 centerline. We also formulated and calibrated the flood plain sediment deposition model using high resolution topography data from LiDAR. Our results show that the model well predicts the meander evolution pattern over historical time period. Also the short term simulations show a good correlation between the predicted inner and outer bend flow velocity ratio and the ratio of inner and outer channel bank slope ratio. JF - American Geophysical Union Fall Meeting AU - Matsubara, Y AU - Howard, A D AU - Burr, D M AU - Moore, J M AU - Williams, R M Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract EP21B EP - 0684 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1316399895?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=A+long+term+meander+evolution+simulation%3A+A+model+evaluation+using+the+field+data+from+Quinn+River%2C+Nevada&rft.au=Matsubara%2C+Y%3BHoward%2C+A+D%3BBurr%2C+D+M%3BMoore%2C+J+M%3BWilliams%2C+R+M&rft.aulast=Matsubara&rft.aufirst=Y&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Peatland records of dust deposition from Middleton Island, Gulf of Alaska AN - 1316399051; 638269-28 AB - Iron is an important micronutrient that limits the growth of phytoplankton in much of the global ocean. In the Gulf of Alaska (GoA), we have a limited knowledge of the processes that transport iron, and in particular, the role eolian dust plays in delivering iron to the ocean surface. In order to better understand both modern and past mechanisms of dust deposition in the GoA, we examine satellite, NCEP reanalysis, and meteorological station data as well as geochemical data from peat cores collected from Middleton Island (59.43 degrees N, 146.34 degrees W). Widespread dust events have been observed in MODIS satellite imagery emanating from exposed floodplains within the Copper River valley and adjacent glaciated river valleys in southcentral Alaska (AK). Dust events are common in the fall when high pressure in the AK interior and low pressure in the central GoA establish a tight pressure gradient that drives anomalously strong northerly winds. Low river levels and limited snow coverage expose fine-grained glacial sediments that are entrained by winds. MODIS imagery indicates dust reaches beyond the continental shelf, and in many instances, dust plumes have been observed passing over Middleton Island (100 km SSW of the Copper River delta). To better constrain dust deposition from southcentral AK on geologic timescales, we collected cores from an extensive peat bog on Middleton Island, located at the edge of the continental shelf. X-ray imagery, bulk density, magnetic susceptibility, loss on ignition, and profiling XRF data indicate significant variations in inorganic or clastic components within the organic peat matrix. Because these cores were collected near the island's topographic high point, we infer that all inorganic constituents are likely delivered as dust, with potential secondary contributions from volcanic ash. We will present a well-dated, high-resolution scanning XRF profile that spans the last 5200 years and records downcore variations in terrigenous material that are likely related to Copper River dust events. JF - American Geophysical Union Fall Meeting AU - Moy, C M AU - Crusius, J AU - Schroth, A W AU - Nichols, J E AU - Peteet, D M AU - Kenna, T C AU - Giosan, L AU - Eglinton, T I AU - Gasso, S Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract PP23B EP - 1847 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1316399051?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Peatland+records+of+dust+deposition+from+Middleton+Island%2C+Gulf+of+Alaska&rft.au=Moy%2C+C+M%3BCrusius%2C+J%3BSchroth%2C+A+W%3BNichols%2C+J+E%3BPeteet%2C+D+M%3BKenna%2C+T+C%3BGiosan%2C+L%3BEglinton%2C+T+I%3BGasso%2C+S&rft.aulast=Moy&rft.aufirst=C&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - In situ carbon isotope analysis of Archean organic matter with SIMS AN - 1282823017; 2013-015168 AB - Spatiotemporal variability in the carbon isotope composition of sedimentary organic matter (OM) preserves information about the evolution of the biosphere and of the exogenic carbon cycle as a whole. Primary compositions, and imprints of the post-depositional processes that obscure them, exist at the scale of individual sedimentary grains (mm to mu m). Secondary ion mass spectrometry (SIMS) (1) enables analysis at these scales and in petrographic context, (2) permits morphological and compositional characterization of the analyte and associated minerals prior to isotopic analysis, and (3) reveals patterns of variability homogenized by bulk techniques. Here we present new methods for in situ organic carbon isotope analysis with sub-permil precision and spatial resolution to 1 mu m using SIMS, as well as new data acquired from a suite of Archean rocks. Three analytical protocols were developed for the CAMECA ims1280 at WiscSIMS to analyze domains of varying size and carbon concentration. Average reproducibility (at 2SD) using a 6 mu m spot size with two Faraday cup detectors was 0.4 ppm, and 0.8 ppm for analyses using 1 mu m and 3 mu m spot sizes with a Faraday cup (for (super 12) C) and an electron multiplier (for (super 13) C). Eight coals, two ambers, a shungite, and a graphite were evaluated for mu m-scale isotopic heterogeneity, and LCNN anthracite (delta (super 13) C = -23.56 + or - 0.1 ppm, 2SD) was chosen as the working standard. Correlation between instrumental bias and H/C was observed and calibrated for each analytical session using organic materials with H/C between 0.1 and 1.5 (atomic), allowing a correction based upon a (super 13) CH/ (super 13) C measurement included in every analysis and a (super 12) CH measurement made immediately after every analysis. The total range of the H/C effect observed for the Archean samples analyzed was < 3 ppm. Analyses of Archean OM domains for which (super 12) C count rate varies with the proportions of organic carbon, carbonate carbon, and quartz suggest that instrumental bias is consistent for (super 12) C count rates as low as 10% relative to anthracite. Samples from the ABDP-9 (n=3; Mount McRae Shale, approximately 2.5 Ga), RHDH2a (n=2; Carrawine Dolomite and Jeerinah Fm, approximately 2.6 Ga), WRL1 (n=3; Wittenoom Fm, Marra Mamba Iron Formation, and Jeerinah Fm, approximately 2.6 Ga), and SV1 (n=1; Tumbiana Fm, approximately 2.7 Ga) drill cores, each previously analyzed for bulk organic carbon isotope composition, yielded 100 new, in situ data from Neoarchean sedimentary OM. In these samples, delta (super 13) C varies between -53.1 and -28.3 ppm and offsets between in situ and bulk compositions range from -8.3 to 18.8 ppm. In some cases, isotopic composition and mode of occurrence (e.g. morphology and mineral associations) are statistically correlated, enabling the identification of distinct reservoirs of OM. Our results support previous evidence for aerobiosis and depth gradients of oxidation in Neoarchean environments driven by photosynthesis and methane metabolism. The relevance of these findings to questions of bio- and syngenicity as well as the alteration history of this OM and similar, previously reported Archean OM will be discussed. JF - American Geophysical Union Fall Meeting AU - Williford, Ken H AU - Ushikubo, T AU - Lepot, K AU - Hallmann, C AU - Spicuzza, Michael J AU - Eigenbrode, J L AU - Summons, R E AU - Valley, J W AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract B21E EP - 0323 PB - American Geophysical Union, Washington, DC VL - 2011 KW - Precambrian KW - ion probe data KW - isotopes KW - isotope ratios KW - C-13/C-12 KW - mass spectra KW - stable isotopes KW - geochemical cycle KW - organic compounds KW - carbon KW - Archean KW - spectra KW - carbon cycle KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1282823017?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=In+situ+carbon+isotope+analysis+of+Archean+organic+matter+with+SIMS&rft.au=Williford%2C+Ken+H%3BUshikubo%2C+T%3BLepot%2C+K%3BHallmann%2C+C%3BSpicuzza%2C+Michael+J%3BEigenbrode%2C+J+L%3BSummons%2C+R+E%3BValley%2C+J+W%3BAnonymous&rft.aulast=Williford&rft.aufirst=Ken&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2013-01-01 N1 - PubXState - DC N1 - Last updated - 2017-01-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Archean; C-13/C-12; carbon; carbon cycle; geochemical cycle; ion probe data; isotope ratios; isotopes; mass spectra; organic compounds; Precambrian; spectra; stable isotopes ER - TY - JOUR T1 - One-carbon (bio?)geochemistry in subsurface waters of the serpentinizing Coast Range Ophiolite AN - 1282822041; 2013-015191 AB - Serpentinization - the aqueous alteration of ultramafic rocks - typically imparts a highly reducing and alkaline character to the reacting fluids. In turn, these can influence the speciation and potential for metabolism of one-carbon compounds in the system. We examined the aqueous geochemistry and assessed the biological potential of one-carbon compounds in the subsurface of the McLaughlin Natural Reserve (Coast Range Ophiolite, California, USA). Fluids from wells sunk at depths of 25-90 meters have pH values ranging from 9.7 to 11.5 and dissolved inorganic carbon (DIC concentrations) generally below 60 micromolar. Methane is present at concentrations up to 1.3 millimolar (approximately one-atmosphere saturation), and hydrogen concentrations are below 15 nanomolar, suggesting active consumption of H (sub 2) and production of CH (sub 4) . However, methane production from CO (sub 2) is thermodynamically unfavorable under these conditions. Additionally, the speciation of DIC predominantly into carbonate at these high pH values creates a problem of carbon availability for any organisms that require CO (sub 2) (or bicarbonate) for catabolism or anabolism. A potential alternative is carbon monoxide, which is present in these waters at concentrations 2000-fold higher than equilibrium with atmospheric CO. CO is utilized in a variety of metabolisms, including methanogenesis, and bioavailability is not adversely affected by pH-dependent speciation (as for DIC). Methanogenesis from CO under in situ conditions is thermodynamically favorable and would satisfy biological energy requirements with respect to both Gibbs Energy yield and power. JF - American Geophysical Union Fall Meeting AU - Hoehler, T M AU - McCollom, T AU - Schrenk, M O AU - Kubo, M AU - Cardace, D AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract B22A EP - 04 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - serpentinization KW - Coast Range Ophiolite KW - Jurassic KW - biochemistry KW - solutes KW - metasomatism KW - Mesozoic KW - ground water KW - geochemical cycle KW - California KW - Coast Ranges KW - carbon KW - carbon cycle KW - dissolved carbon KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1282822041?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=One-carbon+%28bio%3F%29geochemistry+in+subsurface+waters+of+the+serpentinizing+Coast+Range+Ophiolite&rft.au=Hoehler%2C+T+M%3BMcCollom%2C+T%3BSchrenk%2C+M+O%3BKubo%2C+M%3BCardace%2C+D%3BAnonymous&rft.aulast=Hoehler&rft.aufirst=T&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2013-01-01 N1 - PubXState - DC N1 - Last updated - 2014-09-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - biochemistry; California; carbon; carbon cycle; Coast Range Ophiolite; Coast Ranges; dissolved carbon; geochemical cycle; ground water; Jurassic; Mesozoic; metasomatism; serpentinization; solutes; United States ER - TY - JOUR T1 - Chlorophyll anomaly triggered by long-range transported dust over the northern South China Sea AN - 1270037023; 2013-010177 AB - Satellite assessment of the biogeochemical impact of airborne dust deposition into open oceans is hindered by our current inability to retrieve dust properties and ocean color over an extensive period of time, particularly under the influence of cloudy conditions. In this study, we explore the changes of Chlorophyll-a (Chl-a) concentration due to airborne dust fertilization over the northern South China Sea (SCS), which is a cloudy environment with oligotrophic waters in the spring. Multi-year composites from NASA/SeaWiFS Chl-a imagery, in conjunction with a 16-year observational record of dust events, provide a first look at the Chl-a distribution for dust events and the non-dust background during March-April in this region. Our results reveal that the long-range transport of Asian dust to the SCS, although relatively rare (6 cases since 1994), does occur and can significantly enhance phytoplankton blooms. Compared to the western North Pacific, oceanic biogeochemistry in the northern SCS may be much more susceptible to long-range transported Asian dust. JF - American Geophysical Union Fall Meeting AU - Tsay, S AU - Wang, S AU - Hsu, N C AU - Lin, N AU - Chu, Y AU - Liu, J AU - Huang, S AU - Lau, W K AU - Sayer, A M AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract A21A EP - 0014 PB - American Geophysical Union, Washington, DC VL - 2011 KW - sediment transport KW - clastic sediments KW - pigments KW - satellite methods KW - West Pacific KW - chlorophyll KW - nutrients KW - organic compounds KW - transport KW - North Pacific KW - atmospheric transport KW - Pacific Ocean KW - dust KW - sediments KW - ecology KW - porphyrins KW - Northwest Pacific KW - chemical composition KW - South China Sea KW - remote sensing KW - productivity KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1270037023?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Chlorophyll+anomaly+triggered+by+long-range+transported+dust+over+the+northern+South+China+Sea&rft.au=Tsay%2C+S%3BWang%2C+S%3BHsu%2C+N+C%3BLin%2C+N%3BChu%2C+Y%3BLiu%2C+J%3BHuang%2C+S%3BLau%2C+W+K%3BSayer%2C+A+M%3BAnonymous&rft.aulast=Tsay&rft.aufirst=S&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2013-01-01 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2017-01-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - atmospheric transport; chemical composition; chlorophyll; clastic sediments; dust; ecology; North Pacific; Northwest Pacific; nutrients; organic compounds; Pacific Ocean; pigments; porphyrins; productivity; remote sensing; satellite methods; sediment transport; sediments; South China Sea; transport; West Pacific ER - TY - JOUR T1 - Interpreting summertime speedup of the Greenland ice sheet in the context of borehole observations of the subglacial hydraulic system AN - 1220564653; 2013-001867 AB - We present preliminary results from boreholes drilled to the base of the Greenland ice sheet in the Pakitsoq region downstream from Swiss Camp. Boreholes offer a rare opportunity to make direct measurements at the bed and in the ice. In the summer of 2011 roughly one dozen holes were drilled at two separate sites downstream from Swiss Camp, Greenland. At each site we deployed thermistors, water pressure sensors, sliding meters, strain gauges, conductivity probes and inclinometers. In addition, pressure sensors were installed in nearby moulins and a down-hole camera logged englacial structures in boreholes. Slug tests were performed to test the capacity and efficiency of the subglacial system. Our downstream site was also the location where an extensive borehole and surface seismometer array were deployed. These data are interpreted in the context of surface melt availability (derived from locally installed weather stations and a characterization of the supraglacial stream and lake networks) and surface velocity changes (derived from an along-flow array of GPS receivers). JF - American Geophysical Union Fall Meeting AU - Catania, G AU - Luethi, M P AU - Andrews, L C AU - Funk, M AU - Hawley, R L AU - Hoffman, M J AU - Morriss, B F AU - Neumann, T AU - Ryser, C AU - Walter, F T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract C13C EP - 03 PB - American Geophysical Union, Washington, DC VL - 2011 KW - hydrology KW - subglacial processes KW - Arctic region KW - Greenland ice sheet KW - ice sheets KW - climate change KW - temperature KW - Greenland KW - climate effects KW - velocity KW - seasonal variations KW - glacial geology KW - meltwater KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1220564653?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Interpreting+summertime+speedup+of+the+Greenland+ice+sheet+in+the+context+of+borehole+observations+of+the+subglacial+hydraulic+system&rft.au=Catania%2C+G%3BLuethi%2C+M+P%3BAndrews%2C+L+C%3BFunk%2C+M%3BHawley%2C+R+L%3BHoffman%2C+M+J%3BMorriss%2C+B+F%3BNeumann%2C+T%3BRyser%2C+C%3BWalter%2C+F+T%3BAnonymous&rft.aulast=Catania&rft.aufirst=G&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2013-01-01 N1 - PubXState - DC N1 - Last updated - 2014-09-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Arctic region; climate change; climate effects; glacial geology; Greenland; Greenland ice sheet; hydrology; ice sheets; meltwater; seasonal variations; subglacial processes; temperature; velocity ER - TY - JOUR T1 - Spatiotemporal heterogeneity of melt water delivery to the bed of the Greenland ice sheet AN - 1220564648; 2013-001866 AB - In the ablation zone of the western Greenland ice sheet (GIS), supraglacial lakes and streams collect and deliver melt water to moulins, which direct it to the bed. Regional variability in the distribution of supraglacial lakes and streams may result in spatial and temporal heterogeneity of melt water delivery to the bed. We use supraglacial and remote sensing observations to examine this at three locations (22, 28 and 37 km from the ice sheet margin) in the Sermeq Avangnardleq Basin. We find that channel incision rates outpace ice sheet melt rates closer to the ice sheet margin but further inland channel incision is less than the surrounding melt rate. In addition, channels closer to the margin appear to be structurally controlled by the location of surface crevasses. This further acts to stabilize channel location year to year. As a result, we find that further upstream on the GIS supraglacial channels must be continually renewed each spring and meltwater delivery to the bed may be delayed until this routing is established. We explore this possibility through examination of local GPS-derived surface speeds. JF - American Geophysical Union Fall Meeting AU - Andrews, L AU - Catania, G AU - Hawley, R L AU - Hoffman, M J AU - Morriss, B F AU - Markowski, M S AU - Luethi, M P AU - Funk, M AU - Neumann, T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract C13C EP - 02 PB - American Geophysical Union, Washington, DC VL - 2011 KW - hydrology KW - subglacial processes KW - Arctic region KW - Greenland ice sheet KW - ice sheets KW - climate change KW - temperature KW - Greenland KW - geographic information systems KW - information systems KW - glacial geology KW - heterogeneity KW - meltwater KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1220564648?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Spatiotemporal+heterogeneity+of+melt+water+delivery+to+the+bed+of+the+Greenland+ice+sheet&rft.au=Andrews%2C+L%3BCatania%2C+G%3BHawley%2C+R+L%3BHoffman%2C+M+J%3BMorriss%2C+B+F%3BMarkowski%2C+M+S%3BLuethi%2C+M+P%3BFunk%2C+M%3BNeumann%2C+T%3BAnonymous&rft.aulast=Andrews&rft.aufirst=L&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2013-01-01 N1 - PubXState - DC N1 - Last updated - 2014-09-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Arctic region; climate change; geographic information systems; glacial geology; Greenland; Greenland ice sheet; heterogeneity; hydrology; ice sheets; information systems; meltwater; subglacial processes; temperature ER - TY - JOUR T1 - Mapping the depth to ice-cemented ground in the high elevation dry valleys, Antarctica AN - 1220563538; 2013-001848 AB - The high elevation Dry Valleys of Antarctica provide a unique location for the study of permafrost distribution and stability. In particular, the extremely arid and cold conditions preclude the presence of liquid water, and the exchange of water between the ice-cemented ground and the atmosphere is through vapour transport (diffusion). In addition, the low atmospheric humidity results in the desiccation of the subsurface, forming a dry permafrost layer (i.e., cryotic soils which are dry and not ice-cemented). Weather data suggests that subsurface ice is unstable under current climatic conditions. Yet we do find ice-cemented ground in these valleys. This contradiction provides insight into energy balance modeling, vapour transport, and additional climate effects which stabilize subsurface ice. To study the driving factors in the stability and distribution of ice-cemented ground, we have extensively mapped the depth to ice-cemented ground in University Valley (1730 m; 77 degrees S 51.8', 160 degrees E 43'), and three neighboring valleys in the Beacon Valley area. We measured the depth to ice-cemented ground at 15-40 locations per valley by digging soil pits and drilling until ice was reached; for each location 3-5 measurements within a nearly equal 1 m (super 2) area were averaged (see figure). This high-resolution mapping of the depth to ice-cemented ground provides new insight on the distribution and stability of subsurface ice, and shows significant variability in the depth to ground ice within each valley. We are combining data from mapping the depth to ice-cemented ground with year-round, in situ measurements of the atmospheric and subsurface conditions, such as temperature, humidity, wind, and light, to model the local stability of ice-cemented ground. We are using this dataset to examine the effects of slopes, shading, and soil properties, as well as the suggested importance of snow recurrence, to better understand diffusion-controlled subsurface ice stability. JF - American Geophysical Union Fall Meeting AU - Marinova, M AU - McKay, C P AU - Heldmann, J L AU - Davila, A F AU - Andersen, D T AU - Jackson, A AU - Lacelle, D AU - Paulsen, G AU - Pollard, W H AU - Zacny, K AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract C11F EP - 08 PB - American Geophysical Union, Washington, DC VL - 2011 KW - soils KW - hydrology KW - permafrost KW - elevation KW - ice cover KW - energy balance KW - temperature KW - humidity KW - Antarctica KW - ice KW - McMurdo dry valleys KW - climate effects KW - Victoria Land KW - ground ice KW - meteorology KW - frozen ground KW - winds KW - ice cover distribution KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1220563538?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Mapping+the+depth+to+ice-cemented+ground+in+the+high+elevation+dry+valleys%2C+Antarctica&rft.au=Marinova%2C+M%3BMcKay%2C+C+P%3BHeldmann%2C+J+L%3BDavila%2C+A+F%3BAndersen%2C+D+T%3BJackson%2C+A%3BLacelle%2C+D%3BPaulsen%2C+G%3BPollard%2C+W+H%3BZacny%2C+K%3BAnonymous&rft.aulast=Marinova&rft.aufirst=M&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2013-01-01 N1 - PubXState - DC N1 - Last updated - 2014-09-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Antarctica; climate effects; elevation; energy balance; frozen ground; ground ice; humidity; hydrology; ice; ice cover; ice cover distribution; McMurdo dry valleys; meteorology; permafrost; soils; temperature; Victoria Land; winds ER - TY - JOUR T1 - Near surface water layer discovered within the Greenland ice sheet during winter conditions from firn cores, ground based radar, and Operation IceBridge radars AN - 1080610649; 2012-085400 AB - A liquid water layer was discovered below the surface of the southeast Greenland ice sheet at depths of 10 and 25 m. The melt layer was observed 30 April, 2011, prior to any seasonal melting. The discovery was made during firn core drilling to measure snow accumulation rates. The extent and depth is mapped with surface-based radar and from NASA Operation IceBridge airborne radars. The presence of subsurface liquid water prior to any spring-time melt implies the water layer persisted throughout the winter. While, summer 2010 ice sheet melt was of record setting duration and and extent, air temperatures the month prior to the water layer discovery for southern Greenland were 20 degrees C below average. This water storage reservoir could represent an important component of the annual mass budget of the ice sheet, as the exit of melt water from the ice sheet is delayed. JF - American Geophysical Union Fall Meeting AU - Forster, R R AU - Box, J E AU - Miege, C AU - Burgess, E W AU - Koenig, L AU - Paden, J D AU - Gogineni, P S AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract C51C EP - 04 PB - American Geophysical Union, Washington, DC VL - 2011 KW - water KW - ice cores KW - Arctic region KW - firn KW - Greenland ice sheet KW - radar methods KW - glaciers KW - ice sheets KW - temperature KW - Greenland KW - melting KW - mass balance KW - ice KW - snow KW - seasonal variations KW - glacial geology KW - meltwater KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1080610649?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Near+surface+water+layer+discovered+within+the+Greenland+ice+sheet+during+winter+conditions+from+firn+cores%2C+ground+based+radar%2C+and+Operation+IceBridge+radars&rft.au=Forster%2C+R+R%3BBox%2C+J+E%3BMiege%2C+C%3BBurgess%2C+E+W%3BKoenig%2C+L%3BPaden%2C+J+D%3BGogineni%2C+P+S%3BAnonymous&rft.aulast=Forster&rft.aufirst=R&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - PubXState - DC N1 - Last updated - 2014-09-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Arctic region; firn; glacial geology; glaciers; Greenland; Greenland ice sheet; ice; ice cores; ice sheets; mass balance; melting; meltwater; radar methods; seasonal variations; snow; temperature; water ER - TY - JOUR T1 - Twenty years of changes in Greenland from aircraft laser altimetry collected by Ice Bridge and the PARCA Program AN - 1080609891; 2012-085397 AB - In spring of 2011 Operation Ice Bridge, using the NASA P3, flew one of the largest airborne surveys of Arctic regions that has ever been accomplished. Many of these flights repeated previous surveys made by the NASA Airborne Topographic Mapper (ATM) in the NASA PARCA Program dating back to the early 1990's. Other flights repeated ICESat-I satellite ground tracks from the past decade. These extensive data sets permit a comprehensive examination of changes and change trends in the Greenland Ice Sheet. Results from comparing these new data with the historical records will be presented. JF - American Geophysical Union Fall Meeting AU - Krabill, W B AU - Martin, C F AU - Sonntag, J G AU - Fredrick, E B AU - Manizade, S AU - Yungel, J AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract C51C EP - 01 PB - American Geophysical Union, Washington, DC VL - 2011 KW - laser methods KW - ice cover thickness KW - Arctic region KW - Greenland ice sheet KW - ice cover KW - altimetry KW - ice sheets KW - climate change KW - Greenland KW - ice KW - climate effects KW - glacial geology KW - remote sensing KW - ice cover distribution KW - airborne methods KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1080609891?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Twenty+years+of+changes+in+Greenland+from+aircraft+laser+altimetry+collected+by+Ice+Bridge+and+the+PARCA+Program&rft.au=Krabill%2C+W+B%3BMartin%2C+C+F%3BSonntag%2C+J+G%3BFredrick%2C+E+B%3BManizade%2C+S%3BYungel%2C+J%3BAnonymous&rft.aulast=Krabill&rft.aufirst=W&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.agu.org/cgi-bin/SFgate/SFgate?language=English&verbose=0&listenv=table&application=fm11&convert=&converthl=&refinequery=&formintern=&formextern=&transquery=an%3dc51c&_lines=&multiple=0&descriptor=%2fdata%2fepubs%2fwais%2findexes%2ffm11%2ffm11%7c1000%7c2492%7cTWENTY%20YEARS%20OF%20CHANGES%20IN%20GREENLAND%20FROM%20AIRCRAFT%20LASER%20ALTIMETRY%20COLLECTED%20BY%20ICE%20BRIDGE%20AND%20THE%20PARCA%20PROGRAM%7cHTML%7clocalhost:0%7c%2fdata%2fepubs%2fwais%2findexes%2ffm11%2ffm11%7c16683947%2016686439%20%2fdata2%2fepubs%2fwais%2fdata%2ffm11%2ffm11.txt LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - PubXState - DC N1 - Last updated - 2012-09-27 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - airborne methods; altimetry; Arctic region; climate change; climate effects; glacial geology; Greenland; Greenland ice sheet; ice; ice cover; ice cover distribution; ice cover thickness; ice sheets; laser methods; remote sensing ER - TY - JOUR T1 - Velocity, slope change, and structural control of the 2008-2011 surge of Bering Glacier, Alaska, from a time-series of Landsat-7 ETM+ imagery AN - 1080609730; 2012-085431 AB - Bering Glacier has an approximately 20 year surge cycle, with its most recent surge beginning in 2008. To study this most recent activity a time-series of ice velocity maps were produced by applying optical feature tracking methods to Landsat-7 ETM+ panchromatic imagery spanning 2001 to 2010. These show a steady increase in velocity, culminating in a surge starting in 2008 that eventually reached the terminus in 2010. Ice speeds reached 1500 m/yr in the mid-ablation zone in 2008 and remained above 800 m/yr in 2009/2010 in the lower ablation zone. Photoclinometry methods were applied to a pair of winter Landsat-7 ETM+ images from 2002 and 2009 to measure the change in surface slope of Bering Glacier. Over much of the glacier the surface slope, as measured in the direction of Sun's azimuth, has changed only + or -1.5 degrees . However, there are localized areas where the slope has changed by + or -10 degrees , or more, coinciding with large-scale, basal topographic features that parallel the trend in local geologic structures. The point of initiation for the 2008 surge, as well as the trigger point for the 1993 surge, lies within an area of the glacier underlain by longitudinal basal channels. It is suggested that surges begin in this area, rather than further upglacier where many transversely-oriented subglacial ridges exist, because there are few basal obstacles to inhibit sliding. JF - American Geophysical Union Fall Meeting AU - Turrin, J B AU - Forster, R R AU - Bruhn, R L AU - Sauber, J M AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract C53B EP - 0671 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - hydrology KW - North America KW - glaciation KW - subglacial processes KW - glaciers KW - satellite methods KW - glacier surges KW - ice movement KW - Landsat KW - Bering Glacier KW - velocity KW - Saint Elias Mountains KW - Alaska KW - glacial geology KW - remote sensing KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1080609730?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Velocity%2C+slope+change%2C+and+structural+control+of+the+2008-2011+surge+of+Bering+Glacier%2C+Alaska%2C+from+a+time-series+of+Landsat-7+ETM%2B+imagery&rft.au=Turrin%2C+J+B%3BForster%2C+R+R%3BBruhn%2C+R+L%3BSauber%2C+J+M%3BAnonymous&rft.aulast=Turrin&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - PubXState - DC N1 - Last updated - 2014-09-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Alaska; Bering Glacier; glacial geology; glaciation; glacier surges; glaciers; hydrology; ice movement; Landsat; North America; remote sensing; Saint Elias Mountains; satellite methods; subglacial processes; United States; velocity ER - TY - JOUR T1 - Permafrost as a habitable environment on Mars; insights from the Phoenix Mars Mission AN - 1020537403; 2012-056373 AB - The Phoenix mission landed in the northern plains of Mars (68.2 degrees N, 234.3 degrees E) in May 2009, at a location with ground ice within 10 cm of the surface (1). A mission objective was to determine whether conditions at the surface or near subsurface could supporting living organisms with capabilities similar to terrestrial microbes, either at present or in the recent past (2). The lander carried a robotic arm with digging scoop to collect soil and icy material and performed volatile mineral and organic analysis (3) and wet chemical analysis (4). Results from Phoenix along with theoretical modeling and other previous mission results can be used to evaluate the habitability of the landing site (2). Factors that characterize the environments' ability to support life as we know it are the presence of liquid water, the presence of an energy source to support metabolism, the presence of nutrients containing the fundamental building blocks of life, and the absence of environmental conditions that are toxic to or preclude life. Phoenix observational evidence for the presence of liquid water (past or present) includes clean segregated ice (1), chemical etching of soil grains (2), calcite minerals in the soil (3), and variable concentrations of soluble salts (5). The present maximum surface temperature measured is 260K (6) so unfrozen water can form only in adsorbed films or saline brines but warmer climates occur cyclically on geologically short time scales due to variations in orbital parameters. During the most clement periods, temperatures allowing metabolism extend nearly a meter into the subsurface (7). Energy to drive metabolism is available from sunlight, beneath semi-transparent soil grains that can provide shielding from UV radiation. Phoenix also discovered perchlorate (4), a chemical energy source utilized by a wide range of microbes, occurs in high soil concentrations. Biologically available C, H, N, O, P and S compounds are supplied by known atmospheric sources or global dust. Environmental conditions are within growth tolerance for terrestrial microbes. Summer daytime temperatures are sufficient for metabolic activity, the pH is 7.8 and is well buffered (4), and the projected water activity of a wet soil will allow growth. In summary, martian permafrost in the north polar region is a viable location for modern life. Future missions to search for modern life on Mars could target permafrost on Mars. JF - American Geophysical Union Fall Meeting AU - Stoker, Carol AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract C54A EP - 04 PB - American Geophysical Union, Washington, DC VL - 2011 KW - terrestrial planets KW - planets KW - habitat KW - permafrost KW - ice KW - surface features KW - Mars KW - ground ice KW - ecology KW - frozen ground KW - microorganisms KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020537403?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Permafrost+as+a+habitable+environment+on+Mars%3B+insights+from+the+Phoenix+Mars+Mission&rft.au=Stoker%2C+Carol%3BAnonymous&rft.aulast=Stoker&rft.aufirst=Carol&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - PubXState - DC N1 - Last updated - 2014-09-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - ecology; frozen ground; ground ice; habitat; ice; Mars; microorganisms; permafrost; planets; surface features; terrestrial planets ER - TY - JOUR T1 - Earth and Planetary Science Letters AN - 1017951249; 2012-051428 JF - Earth and Planetary Science Letters AU - Righter, K Y1 - 2011/12// PY - 2011 DA - December 2011 SP - 519 EP - 521 PB - Elsevier, Amsterdam VL - 312 IS - 3-4 SN - 0012-821X, 0012-821X KW - silicates KW - upper mantle KW - magma oceans KW - Earth KW - accretion KW - pressure KW - cobalt KW - silicate melts KW - mantle KW - siderophile elements KW - low pressure KW - high pressure KW - equilibrium KW - melts KW - partition coefficients KW - metals KW - nickel KW - P-T conditions KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1017951249?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=Earth+and+Planetary+Science+Letters&rft.au=Righter%2C+K&rft.aulast=Righter&rft.aufirst=K&rft.date=2011-12-01&rft.volume=312&rft.issue=3-4&rft.spage=519&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2011.10.011 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 25 N1 - Document feature - illus. N1 - SuppNotes - For reference to discussion see Palme, H., et al., Earth and Planetary Science Letters, Vol. 312, p. 516-518, DOI: 10.1016/j.epsl.2011.10.018, 2011; for reference to original see Righter, K., Earth and Planetary Science Letters, Vol. 304, p. 158-167, DOI: 10.1016/j.epsl.2011.01.028, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - accretion; cobalt; Earth; equilibrium; high pressure; low pressure; magma oceans; mantle; melts; metals; nickel; P-T conditions; partition coefficients; pressure; siderophile elements; silicate melts; silicates; upper mantle DO - http://dx.doi.org/10.1016/j.epsl.2011.10.011 ER - TY - JOUR T1 - Separation of accumulation driven firn compaction from the mixed changes in surface elevation AN - 1015460748; 2012-047546 AB - In polar ice sheets, fluctuations of the accumulation rate directly cause the surface elevation change. Meanwhile these variations alter the overburden pressure, causing the changes in firn compaction rate that also changes the surface elevation. Knowing the importance of the accumulation driven firn compaction in contribution to the elevation change is of great interest of understanding the short-term variations in the observed elevation-time profiles, and then inferring the mass changes from those variations. In this study, we show that the characteristic of the densification rate equation in our model allows separating the accumulation caused firn compaction from the mixed term of accumulation and the accumulation driven compaction, as well as from the temperature driven compaction. We carry out numerical experiments under a constant temperature and time variable accumulation rates and use the average changes of the over-burden pressure (represented by the average accumulation rate) to drive compaction rate at each depth, comparing with those by using the long-term accumulation rate for the steady-state. Our results show that for the conditions similar to the summit of the Greenland ice sheet, increase of the accumulation rate at 1-2% a-1 will enhance the firn compaction rate, resulting in the rate of surface elevation change about 20-30% for 10-20 year period. JF - American Geophysical Union Fall Meeting AU - Li, Jun AU - Zwally, Jay AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract C31A EP - 0586 PB - American Geophysical Union, Washington, DC VL - 2011 KW - density KW - Arctic region KW - firn KW - elevation KW - Greenland ice sheet KW - ice cover KW - ice sheets KW - compaction KW - ice movement KW - Greenland KW - ice KW - snow KW - glacial geology KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1015460748?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Separation+of+accumulation+driven+firn+compaction+from+the+mixed+changes+in+surface+elevation&rft.au=Li%2C+Jun%3BZwally%2C+Jay%3BAnonymous&rft.aulast=Li&rft.aufirst=Jun&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.agu.org/cgi-bin/SFgate/SFgate?language=English&verbose=0&listenv=table&application=fm11&convert=&converthl=&refinequery=&formintern=&formextern=&transquery=an%3dc31a&_lines=&multiple=0&descriptor=%2fdata%2fepubs%2fwais%2findexes%2ffm11%2ffm11%7c1000%7c2595%7cSeparation%20of%20accumulation%20driven%20firn%20compaction%20from%20the%20mixed%20changes%20in%20surface%20elevation%7cHTML%7clocalhost:0%7c%2fdata%2fepubs%2fwais%2findexes%2ffm11%2ffm11%7c15294177%2015296772%20%2fdata2%2fepubs%2fwais%2fdata%2ffm11%2ffm11.txt LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Arctic region; compaction; density; elevation; firn; glacial geology; Greenland; Greenland ice sheet; ice; ice cover; ice movement; ice sheets; snow ER - TY - JOUR T1 - West Antarctic ice sheet temporal and spatial accumulation variability from five new snowpits and firn cores AN - 1015460746; 2012-047545 AB - Five snowpit and shallow (less than 20 m) firn cores were collected along a transect across the West Antarctic Ice Sheet (WAIS) divide. Sub-annually resolved accumulation-rate records were developed by combining density, isotope and electrical conductivity datasets from each location. These new records overlap with and extend previous records in the area. The isotope record of the new core recovered from the ITASE-00-1 site (10 km from the WAIS divide deep-core site) correlates significantly with the original ITASE core, adding confidence to the utility of the new records. These new records are used to quantify the spatial and temporal patterns in accumulation, with a focus on the last decade. These results are used to re-evaluate the proposed relationship (Kaspari et al., 2004) between accumulation at WAIS and cyclonic activity in the region over the past three decades, including an evaluation of the influence of the Southern Oscillation Index and storm activity in the region. JF - American Geophysical Union Fall Meeting AU - Burgener, Landon K AU - Rupper, Summer AU - Williams, Jessica AU - Marker, R AU - Christensen, William F AU - Koenig, Lora S AU - Miege, Clement AU - Koutnik, M R AU - Forster, Rick R AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract C23F EP - 08 PB - American Geophysical Union, Washington, DC VL - 2011 KW - electrical conductivity KW - snow cover KW - ice cover thickness KW - ice cover KW - glaciers KW - ice sheets KW - Antarctic ice sheet KW - Antarctica KW - ice KW - snow KW - West Antarctic ice sheet KW - velocity KW - glacial geology KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1015460746?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=West+Antarctic+ice+sheet+temporal+and+spatial+accumulation+variability+from+five+new+snowpits+and+firn+cores&rft.au=Burgener%2C+Landon+K%3BRupper%2C+Summer%3BWilliams%2C+Jessica%3BMarker%2C+R%3BChristensen%2C+William+F%3BKoenig%2C+Lora+S%3BMiege%2C+Clement%3BKoutnik%2C+M+R%3BForster%2C+Rick+R%3BAnonymous&rft.aulast=Burgener&rft.aufirst=Landon&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - PubXState - DC N1 - Last updated - 2014-09-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Antarctic ice sheet; Antarctica; electrical conductivity; glacial geology; glaciers; ice; ice cover; ice cover thickness; ice sheets; snow; snow cover; velocity; West Antarctic ice sheet ER - TY - JOUR T1 - Antarctic megadunes; assessment of topographic form and windward progradation from ICESat altimetry, 2003-2009 AN - 1015459607; 2012-047580 AB - More than 900,000 square kilometers of East Antarctica are covered by distinctive megadune features (Fahnestock et al., 2000, Courville et al., 2007) as first defined by Swithinbank (1988). These long, undulating, sinuous dunes are due to persistent gravity-driven katabatic winds and spatially variable accumulation. In the field, they have a distinctive morphology, but characterization of the evolution of these active landscape features requires detailed elevation data as well as radar backscatter and grain size information. In this study, we utilize NASA's ICESat laser altimetry data during 2003-2009 (corrected for intercampaign biases) in the vicinity of an NSF-OPP funded research site near 80.78 degrees S, 124.5 degrees E, occupied and instrumented during the 2002-2003 and 2003-2004 summer seasons with additional limited field observations from January 2011. Using remote sensing data sets and field observations, we can characterize these features including their extent, variability, and elevation change with time. Field measurements from ground penetrating radar, automatic weather stations, surface photos, snowpits, and shallow cores provide in situ and subsurface information on local dune structure. Based on these data, Antarctic megadunes can be characterized as linear strips of higher accumulation ( approximately 30 to 80 kg m (super -2) a (super -1) maximum, typically toward the lower part of the range) consisting of fine-grained, wind-packed snow, generally forming 2-8 meter high, 1-2 km wide ridges up to 100 km long and separated by 2-6 km of near-zero-accumulation wind glaze regions. Glaze surfaces overlie extremely metamorphosed firn composed of very coarse recrystallized grains with poorly expressed layering. Our study extends site-specific results summarized in Courville et al. (2007) across the megadune study area with co-located MODIS-based Mosaic of Antarctica (MOA) images and surface optical grain size (e.g. Scambos et al., 2007), calibrated SAR backscatter data from the Radarsat Antarctic Mapping Mission (RAMP; Jezek, 1999), and elevation profiles and derived elevation changes from ICESat. Megadunes form by windward accretion of snow from the blowing snow stream entrained in the katabatic layer (Frezzotti et al., 2002; Courville et al., 2007). Ground-penetrating radar profiles reveal that the accumulation rate and the surface profile shape are intimately related for megadunes, with peak accumulation at the maximum surface slope on the windward face. We infer from accumulation and slope data that active megadunes in the field study area should migrate to the windward at approximately 12.5 m a (super -1) . This motion is somewhat offset in our study area by the GPS-measured approximately 4 m a (super -1) ice flow to the east at about 45 degrees to the mean wind azimuth. The region of maximum accumulation on the windward face should have a net thickening rate of up to 9 cm a (super -1) as the dune slowly shifts upwind (downwind areas should lower by somewhat smaller amounts). We detail ICESat elevation data across the study area for both accumulation and glaze areas of these dunes to attempt to document active migration. JF - American Geophysical Union Fall Meeting AU - Shuman, Christopher A AU - Scambos, Ted A AU - Fahnestock, Mark A AU - Suchdeo, Vijay P AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract C32B EP - 07 PB - American Geophysical Union, Washington, DC VL - 2011 KW - hydrology KW - snow cover KW - ICESat KW - ice cover KW - altimetry KW - snow cover distribution KW - East Antarctica KW - satellite methods KW - compaction KW - topography KW - Antarctica KW - ice KW - snow KW - remote sensing KW - ice cover distribution KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1015459607?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Antarctic+megadunes%3B+assessment+of+topographic+form+and+windward+progradation+from+ICESat+altimetry%2C+2003-2009&rft.au=Shuman%2C+Christopher+A%3BScambos%2C+Ted+A%3BFahnestock%2C+Mark+A%3BSuchdeo%2C+Vijay+P%3BAnonymous&rft.aulast=Shuman&rft.aufirst=Christopher&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - PubXState - DC N1 - Last updated - 2017-01-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - altimetry; Antarctica; compaction; East Antarctica; hydrology; ice; ice cover; ice cover distribution; ICESat; remote sensing; satellite methods; snow; snow cover; snow cover distribution; topography ER - TY - JOUR T1 - Identification of accumulation, density and grain size bias in the regional climate model MAR over the Greenland ice sheet using in-situ and remotely sensed data AN - 1015459290; 2012-047506 AB - The Modele Atmospherique Regional (MAR) has been used in multiple studies to investigate recent and long-term changes to the Surface Mass Balance (SMB) of the Greenland ice sheet. Quantifying the magnitude of changes in ice sheet SMB is important for understanding the magnitude of reported recent ice sheet mass loss, and predicting future changes that can contribute to sea level rise. Regional climate models such as MAR have provided estimates of the SMB. Due to sparse observational data, there are large uncertainties in quantities important for accurate SMB estimates, such as accumulation, bare ice extent, and surface albedo, for example. An ongoing analysis of MAR grain size, density, and accumulation bias is being undertaken as part of a broader effort to assimilate satellite data within MAR. The ultimate goal of this project is to improve the accuracy of SMB estimates. Here we report results from an initial comparison between MAR data and in-situ profiles and meteorological data collected at the Summit station in Greenland. Results suggest that the model underestimates grain size and density in the upper portion of the snowpack. We also compare MAR estimates of accumulation with trends of mass change derived from the GRACE satellites and with elevation changes estimated from spaceborne and airborne missions, such as CRYOSAT, ICESAT and ICEBRIDGE. An investigation of MAR parameterizations reveals potential solutions for improving the albedo and grain size schemes. Further investigation of satellite-derived grain size and albedo is planned, which will reveal whether locally observed bias is indeed present on a larger scale. JF - American Geophysical Union Fall Meeting AU - Alexander, P M AU - Tedesco, M AU - Steiner, Nick AU - Marshall, H AU - Luthcke, Scott B AU - Fettweis, Xavier AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract C22B EP - 06 PB - American Geophysical Union, Washington, DC VL - 2011 KW - albedo KW - Summit Greenland KW - snow cover KW - Arctic region KW - Greenland ice sheet KW - ice cover KW - glaciers KW - ice sheets KW - climate change KW - Greenland KW - mass balance KW - ice KW - snow KW - climate effects KW - glacial geology KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1015459290?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Identification+of+accumulation%2C+density+and+grain+size+bias+in+the+regional+climate+model+MAR+over+the+Greenland+ice+sheet+using+in-situ+and+remotely+sensed+data&rft.au=Alexander%2C+P+M%3BTedesco%2C+M%3BSteiner%2C+Nick%3BMarshall%2C+H%3BLuthcke%2C+Scott+B%3BFettweis%2C+Xavier%3BAnonymous&rft.aulast=Alexander&rft.aufirst=P&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - PubXState - DC N1 - Last updated - 2017-01-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - albedo; Arctic region; climate change; climate effects; glacial geology; glaciers; Greenland; Greenland ice sheet; ice; ice cover; ice sheets; mass balance; snow; snow cover; Summit Greenland ER - TY - JOUR T1 - New insights in the Pakitsoq region of the Greenland ice sheet from borehole optical televiewer measurements of in-situ ice properties; stratigraphy, englacial features, and the potential for optical identification of the Wisconsin-Holocene transition AN - 1015458848; 2012-047582 AB - A Borehole Optical Televiewer (OPTV) probe uses a CCD sensor to scan the walls of a borehole, generating an image of the borehole wall. In addition to imaging, the instrument measures borehole inclination and azimuth, and the local magnetic and gravity fields. One result is an oriented, "unwrapped" image of the cylindrical borehole wall. On this image, visible stratigraphy is readily apparent. In addition, visible features which cross-cut stratigraphic features can be identified. Beyond the visual identification of features in the image, the overall brightness of the borehole wall can provide further insight. In summer 2011, we drilled multiple boreholes at two locations in the Pakitsoq region on the West coast of the Greenland Ice Sheet using a hot-water drill. We logged several of the holes with OPTV. Here, we present data and analysis of the OPTV data from these boreholes. In particular, we find consistent stratigraphy throughout most of the 600+ meter ice column. We see englacial features crosscutting these stratigraphic layers, which could be former crevasses, refrozen englacial water conduits, or other fractures. The background brightness of the borehole is revealing as well. The brightness decreases slightly with depth, but in the deepest 100 meters of the log, the brightness increases dramatically, accompanied by a significant change in the spectral response. This change could be indicative of the higher dust content of Wisconsin ice as distinct from lower-dust-content Holocene ice. If so, this paves the way for OPTV as a rapid technique for determining the depth of the Wisconsin-Holocene transition in glacier boreholes. JF - American Geophysical Union Fall Meeting AU - Hawley, Robert L AU - Morriss, B F AU - Andrews, L AU - Catania, G AU - Funk, M AU - Hoffman, Matthew J AU - Luethi, M P AU - Neumann, Thomas AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract C33A EP - 0622 PB - American Geophysical Union, Washington, DC VL - 2011 KW - Quaternary KW - geophysical surveys KW - Arctic region KW - Greenland ice sheet KW - geophysical methods KW - magnetic methods KW - glaciers KW - Holocene KW - ice sheets KW - Wisconsinan KW - upper Pleistocene KW - Cenozoic KW - Greenland KW - gravity methods KW - Pakitsoq Greenland KW - optical properties KW - boreholes KW - surveys KW - Pleistocene KW - glacial geology KW - drilling KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1015458848?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=New+insights+in+the+Pakitsoq+region+of+the+Greenland+ice+sheet+from+borehole+optical+televiewer+measurements+of+in-situ+ice+properties%3B+stratigraphy%2C+englacial+features%2C+and+the+potential+for+optical+identification+of+the+Wisconsin-Holocene+transition&rft.au=Hawley%2C+Robert+L%3BMorriss%2C+B+F%3BAndrews%2C+L%3BCatania%2C+G%3BFunk%2C+M%3BHoffman%2C+Matthew+J%3BLuethi%2C+M+P%3BNeumann%2C+Thomas%3BAnonymous&rft.aulast=Hawley&rft.aufirst=Robert&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.agu.org/cgi-bin/SFgate/SFgate?language=English&verbose=0&listenv=table&application=fm11&convert=&converthl=&refinequery=&formintern=&formextern=&transquery=an%3dc33a&_lines=&multiple=0&descriptor=%2fdata%2fepubs%2fwais%2findexes%2ffm11%2ffm11%7c1000%7c4276%7cNew%20insights%20in%20the%20Pakitsoq%20Region%20of%20the%20Greenland%20Ice%20Sheet%20from%20Borehole%20Optical%20Televiewer%20measurements%20of%20in-situ%20ice%20properties:%20%20stratigraphy%2c%20englacial%20features%2c%20and%20the%20potential%20for%20optical%7cHTML%7clocalhost:0%7c%2fdata%2fepubs%2fwais%2findexes%2ffm11%2ffm11%7c15543402%2015547678%20%2fdata2%2fepubs%2fwais%2fdata%2ffm11%2ffm11.txt LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Arctic region; boreholes; Cenozoic; drilling; geophysical methods; geophysical surveys; glacial geology; glaciers; gravity methods; Greenland; Greenland ice sheet; Holocene; ice sheets; magnetic methods; optical properties; Pakitsoq Greenland; Pleistocene; Quaternary; surveys; upper Pleistocene; Wisconsinan ER - TY - JOUR T1 - Ph(2)o and Simulated Hypobaric Hypoxia AN - 1009817801; 16175002 AB - Some manufacturers of reduced oxygen (O(2)) breathing devices claim a comparable hypobaric hypoxia (HH) training experience by providing F(1)O(2) < 0.209 at or near sea level pressure to match the ambient oxygen partial pressure (iso-PO(2_) of the target altitude. I conclude after a review of literature from investigators and manufacturers that these devices may not properly account for the 47 mmHg of water vapor partial pressure that reduces the inspired partial pressure of oxygen (P(1)O(2)), which is substantial at higher altitude relative to sea level. Consequently, some devices claiming an equivalent HH experience under normobaric conditions would significantly overestimate the HH condition, especially when simulating altitudes above 10,000 ft (3048 m). At best, the claim should be that the devices provide an approximate HH experience since they only duplicate the ambient PO(2) at sea level as at altitude. An approach to reduce the overestimation and standardize the operation is to at least provide machines that create the same P(1)O(2) conditions at sea level as at the target altitude, a simple software upgrade. JF - Aviation, Space, and Environmental Medicine AU - Conkin, Johnny AD - Universities Space Research Association, 3600 Bay Area Boulevard, Houston, TX, johnny.conkin-l@nasa.gov Y1 - 2011/12// PY - 2011 DA - Dec 2011 SP - 1157 EP - 1158 PB - Aerospace Medical Association, 320 S. Henry St. Alexandria VA 22314-3579 United States VL - 82 IS - 12 SN - 0095-6562, 0095-6562 KW - Health & Safety Science Abstracts KW - Oxygen KW - Computer programs KW - Altitude KW - Sea level KW - Water vapor KW - Training KW - Hypoxia KW - Reviews KW - H 2000:Transportation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1009817801?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.atitle=Ph%282%29o+and+Simulated+Hypobaric+Hypoxia&rft.au=Conkin%2C+Johnny&rft.aulast=Conkin&rft.aufirst=Johnny&rft.date=2011-12-01&rft.volume=82&rft.issue=12&rft.spage=1157&rft.isbn=&rft.btitle=&rft.title=Aviation%2C+Space%2C+and+Environmental+Medicine&rft.issn=00956562&rft_id=info:doi/10.3357%2FASEM.3145.2011 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-09-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Computer programs; Oxygen; Altitude; Sea level; Training; Water vapor; Reviews; Hypoxia DO - http://dx.doi.org/10.3357/ASEM.3145.2011 ER - TY - JOUR T1 - Analysis of Antarctic ice sheet mass balance from ICESat measurements AN - 1008819032; 2012-039861 AB - Published estimates of the mass balance of the Antarctic ice sheet have presented a wide range of uncertainty about the magnitude of the mass gain or loss, and conflicting evidence regarding acceleration or deceleration during the last two decades. For Greenland, results from ICESat for 2003 to 2007 showed the mass loss increased to 171 Gt/yr from the near balance in the 1990's. Similar analysis for Antarctica shows a positive balance of 38 Gt/yr for the period 2003 to 2008, which changed from a loss of about 31 Gt/yr for 1992 to 2001 (from analysis of ERS radar altimetry data) or a loss of 13 Gt/yr for around 2000 (from a modified estimate using the input-output method). Parts of the both the East and West Antarctic ice sheets and the Antarctic Peninsula are losing mass at increasing rates, but other parts are gaining mass at increasing rates. In West Antarctica, increased losses of 30 Gt/yr from the Pine Island, Thwaites-Smith, and Marie-Byrd Coast drainage systems are more than balanced by gains at the base of the Peninsula and three ice stream drainage systems (C. Kamb, D. Bindschadler, and E. MacAyeal), reducing the net loss from West Antarctica. In East Antarctica, some drainage systems also have increased losses, but the increased gains in the other systems are greater, giving a net increase in the mass gain for East Antarctica. Our estimate of the current mass gain for Antarctica is equivalent to a small reduction of 0.1 mm/yr in the rate of sea level rise. JF - American Geophysical Union Fall Meeting AU - Zwally, H J AU - Li, Jun AU - Robbins, John W AU - Saba, Jack L AU - Yi, Donghui AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract C42A EP - 05 PB - American Geophysical Union, Washington, DC VL - 2011 KW - hydrology KW - ICESat KW - ice cover KW - glaciers KW - satellite methods KW - ice sheets KW - climate change KW - Antarctic ice sheet KW - Antarctica KW - mass balance KW - ice KW - climate effects KW - glacial geology KW - remote sensing KW - meltwater KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819032?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Analysis+of+Antarctic+ice+sheet+mass+balance+from+ICESat+measurements&rft.au=Zwally%2C+H+J%3BLi%2C+Jun%3BRobbins%2C+John+W%3BSaba%2C+Jack+L%3BYi%2C+Donghui%3BAnonymous&rft.aulast=Zwally&rft.aufirst=H&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - PubXState - DC N1 - Last updated - 2017-01-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Antarctic ice sheet; Antarctica; climate change; climate effects; glacial geology; glaciers; hydrology; ice; ice cover; ice sheets; ICESat; mass balance; meltwater; remote sensing; satellite methods ER - TY - JOUR T1 - Surface topographic changes in southern Greenland, 2003-2011; measured using space and airborne lidar remote sensing AN - 1008815557; 2012-039846 AB - Airborne laser mapping has numerous applications in Earth science including providing topographic information of ice surfaces for mass balance investigations and dynamical modeling. In April 2011, NASA's Land, Vegetation and Ice Sensor (LVIS) system imaged areas of Greenland as part of NASA's Operation IceBridge on board a KingAir B-200 aircraft from NASA Langley. LVIS is an airborne, medium-footprint ( approximately 25 m diameter), wide swath ( approximately 2 km) full waveform recording lidar system that has been used extensively for mapping surface structure. The system digitally records the shape of the outgoing and returning laser echo, or waveform which, after its interaction with the various reflecting surfaces of the earth, provides a true 3-dimensional record of the surface structure within each footprint in the data swath. During the mission, over 50,000 km2 of data were collected in the southwest quadrant of Greenland along grid lines offset from each other by 5 km, 10 km or 20 km, oriented along elevation contours, and following ICESat tracks where possible. The data provides a comprehensive topographic sampling of the area to achieve the Icebridge vision of fuller utilization of the ICESat legacy data set and continuing surface elevation change measurements between spaceborne missions. Comparisons to ICESat elevation data are presented to quantify surface changes since 2003 in the area. Up to 6 m of elevation loss over large spatial areas was observed from 2003-2011, extending at least 200 km inland. Comparisons of the magnitude and spatial patterns of change will be made and compared to other methods including GRACE. JF - American Geophysical Union Fall Meeting AU - Hofton, M A AU - Luthcke, Scott B AU - Blair, Bryan AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract C41E EP - 0480 PB - American Geophysical Union, Washington, DC VL - 2011 KW - bedrock KW - laser methods KW - ice cover thickness KW - ICESat KW - Arctic region KW - Greenland ice sheet KW - ice cover KW - GRACE KW - South Greenland KW - satellite methods KW - ice sheets KW - Greenland KW - topography KW - lidar methods KW - mass balance KW - glacial geology KW - remote sensing KW - airborne methods KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008815557?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Surface+topographic+changes+in+southern+Greenland%2C+2003-2011%3B+measured+using+space+and+airborne+lidar+remote+sensing&rft.au=Hofton%2C+M+A%3BLuthcke%2C+Scott+B%3BBlair%2C+Bryan%3BAnonymous&rft.aulast=Hofton&rft.aufirst=M&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - PubXState - DC N1 - Last updated - 2014-09-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - airborne methods; Arctic region; bedrock; glacial geology; GRACE; Greenland; Greenland ice sheet; ice cover; ice cover thickness; ice sheets; ICESat; laser methods; lidar methods; mass balance; remote sensing; satellite methods; South Greenland; topography ER - TY - JOUR T1 - Continuing mass losses of Larsen B tributary glaciers (Antarctic Peninsula) during 2006-2011 AN - 1008815545; 2012-039845 AB - Nearly a decade after the dramatic ice shelf collapse in early 2002, reconciling estimates of the mass imbalance and sea level rise contribution of Larsen B tributary glaciers is essential. There are still large discrepancies (range: 4-27 Gt/yr) between the ice losses obtained using the mass budget method (Rignot et al., 2008; Rott et al., 2011) and the volumetric change method (Shuman et al., 2011). Here, we analyze map of elevation difference during 2006-2011 created by subtracting SPOT5 and ASTER digital elevation models (DEMs) previously calibrated using altimetric data from IceBridge flights (ATM) and the ICESat satellite. Repeat ATM and ICESat data augment the basin-by-basin ice volume change data from the differential DEMs with elevation profile snapshots at more frequent intervals. These longitudinal profiles of elevation differences suggest the propagation of kinematic waves of high mass loss moving progressively upstream. DEMs acquired just a few weeks apart in late 2006 are also differenced to provide a 'null test', yielding an unambiguous determination of the accuracy of the volume changes inferred from differential DEMs. A preliminary analysis indicates that the 2006-2011 mass losses ( approximately 10 Gt/yr) are similar to the 2001-2006 values (at least 11.2 Gt/yr). These additional data suggest large ice losses in the Larsen B embayment are sustained nearly a decade after the ice shelf collapse. JF - American Geophysical Union Fall Meeting AU - Berthier, Etienne AU - Shuman, Christopher A AU - Scambos, Ted A AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract C41E EP - 0479 PB - American Geophysical Union, Washington, DC VL - 2011 KW - bedrock KW - ice cover thickness KW - elevation KW - ice cover KW - glaciers KW - ice shelves KW - digital terrain models KW - Antarctic Peninsula KW - ice movement KW - sea-level changes KW - topography KW - melting KW - Larsen Ice Shelf KW - Antarctica KW - ice streams KW - mass balance KW - glacial geology KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008815545?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Continuing+mass+losses+of+Larsen+B+tributary+glaciers+%28Antarctic+Peninsula%29+during+2006-2011&rft.au=Berthier%2C+Etienne%3BShuman%2C+Christopher+A%3BScambos%2C+Ted+A%3BAnonymous&rft.aulast=Berthier&rft.aufirst=Etienne&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - PubXState - DC N1 - Last updated - 2017-01-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Antarctic Peninsula; Antarctica; bedrock; digital terrain models; elevation; glacial geology; glaciers; ice cover; ice cover thickness; ice movement; ice shelves; ice streams; Larsen Ice Shelf; mass balance; melting; sea-level changes; topography ER - TY - NEWS T1 - Student Cloud Observations Help Validate NASA Satellites AN - 906318673 JF - UPI Space Daily AU - Jennifer LaPan for NASA Langley Research Center Y1 - 2011/11/29/ PY - 2011 DA - 2011 Nov 29 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/906318673?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Student+Cloud+Observations+Help+Validate+NASA+Satellites&rft.au=Jennifer+LaPan+for+NASA+Langley+Research+Center&rft.aulast=Jennifer+LaPan+for+NASA+Langley+Research+Center&rft.aufirst=&rft.date=2011-11-29&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-11-29 ER - TY - JOUR T1 - Terrestrial planet formation AN - 1673368067; 2015-035041 AB - Advances in our understanding of terrestrial planet formation have come from a multidisciplinary approach. Studies of the ages and compositions of primitive meteorites with compositions similar to the Sun have helped to constrain the nature of the building blocks of planets. This information helps to guide numerical models for the three stages of planet formation from dust to planetesimals ( approximately 10 (super 6) y), followed by planetesimals to embryos (lunar to Mars-sized objects; few X 10 (super 6) y), and finally embryos to planets (10 (super 7) -10 (super 8) y). Defining the role of turbulence in the early nebula is a key to understanding the growth of solids larger than meter size. The initiation of runaway growth of embryos from planetesimals ultimately leads to the growth of large terrestrial planets via large impacts. Dynamical models can produce inner Solar System configurations that closely resemble our Solar System, especially when the orbital effects of large planets (Jupiter and Saturn) and damping mechanisms, such as gas drag, are included. Experimental studies of terrestrial planet interiors provide additional constraints on the conditions of differentiation and, therefore, origin. A more complete understanding of terrestrial planet formation might be possible via a combination of chemical and physical modeling, as well as obtaining samples and new geophysical data from other planets (Venus, Mars, or Mercury) and asteroids. JF - Proceedings of the National Academy of Sciences of the United States of America AU - Righter, Kevin AU - O'Brien, D P AU - MacPherson, Glenn J AU - Thiemens, Mark H Y1 - 2011/11/29/ PY - 2011 DA - 2011 Nov 29 SP - 19165 EP - 19170 PB - National Academy of Sciences, Washington, DC VL - 108 IS - 48 SN - 0027-8424, 0027-8424 KW - solar system KW - Earth KW - accretion KW - numerical models KW - Moon KW - orbits KW - cosmochemistry KW - planetary embryos KW - turbulence KW - planetesimals KW - impacts KW - research KW - size KW - giant planets KW - terrestrial planets KW - genesis KW - planets KW - motions KW - meteorites KW - Earth-Moon couple KW - planetology KW - core KW - geochemistry KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673368067?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.atitle=Terrestrial+planet+formation&rft.au=Righter%2C+Kevin%3BO%27Brien%2C+D+P%3BMacPherson%2C+Glenn+J%3BThiemens%2C+Mark+H&rft.aulast=Righter&rft.aufirst=Kevin&rft.date=2011-11-29&rft.volume=108&rft.issue=48&rft.spage=19165&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.issn=00278424&rft_id=info:doi/10.1073%2Fpnas.1013480108 L2 - http://www.pnas.org/content/by/year LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 84 N1 - PubXState - DC N1 - Document feature - illus. incl. charts N1 - SuppNotes - Planetary Science Institute Contrib. No. 509 N1 - Last updated - 2015-04-16 N1 - CODEN - PNASA6 N1 - SubjectsTermNotLitGenreText - accretion; core; cosmochemistry; Earth; Earth-Moon couple; genesis; geochemistry; giant planets; impacts; meteorites; Moon; motions; numerical models; orbits; planetary embryos; planetesimals; planetology; planets; research; size; solar system; terrestrial planets; turbulence DO - http://dx.doi.org/10.1073/pnas.1013480108 ER - TY - JOUR T1 - Establishing a molecular relationship between chondritic and cometary organic solids AN - 1673367467; 2015-035042 AB - Multidimensional solid-state NMR spectroscopy is used to refine the identification and abundance determination of functional groups in insoluble organic matter (IOM) isolated from a carbonaceous chondrite (Murchison, CM2). It is shown that IOM is composed primarily of highly substituted single ring aromatics, substituted furan/pyran moieties, highly branched oxygenated aliphatics, and carbonyl groups. A pathway for producing an IOM-like molecular structure through formaldehyde polymerization is proposed and tested experimentally. Solid-state (super 13) C NMR analysis of aqueously altered formaldehyde polymer reveals considerable similarity with chondritic IOM. Carbon X-ray absorption near edge structure spectroscopy of formaldehyde polymer reveals the presence of similar functional groups across certain Comet 81P/Wild 2 organic solids, interplanetary dust particles, and primitive IOM. Variation in functional group concentration amongst these extraterrestrial materials is understood to be a result of various degrees of processing in the parent bodies, in space, during atmospheric entry, etc. These results support the hypothesis that chondritic IOM and cometary refractory organic solids are related chemically and likely were derived from formaldehyde polymer. The fine-scale morphology of formaldehyde polymer produced in the experiment reveals abundant nanospherules that are similar in size and shape to organic nanoglobules that are ubiquitous in primitive chondrites. JF - Proceedings of the National Academy of Sciences of the United States of America AU - Cody, George D AU - Heying, Emily AU - Alexander, Conel M O AU - Nittler, Larry R AU - Kilcoyne, A L David AU - Sandford, Scott A AU - Stroud, Rhonda M AU - MacPherson, Glenn J AU - Thiemens, Mark H Y1 - 2011/11/29/ PY - 2011 DA - 2011 Nov 29 SP - 19171 EP - 19176 PB - National Academy of Sciences, Washington, DC VL - 108 IS - 48 SN - 0027-8424, 0027-8424 KW - silicates KW - ordinary chondrites KW - stony meteorites KW - oxygen KW - ion probe data KW - refractory materials KW - mass spectra KW - aqueous solutions KW - C-XANES spectra KW - solution KW - interplanetary dust KW - NMR spectra KW - nitrogen KW - Murchison Meteorite KW - XANES spectra KW - meteorites KW - STXM KW - insoluble residues KW - carbon KW - Wild 2 Comet KW - applications KW - spectra KW - nuclear magnetic resonance KW - chondrites KW - polymers KW - geochemistry KW - spherules KW - solar system KW - experimental studies KW - formaldehyde KW - cosmochemistry KW - QUE 97008 KW - carbonaceous chondrites KW - X-ray spectra KW - size KW - molecular structure KW - scanning transmission X-ray microscopy/spectroscopy KW - organic compounds KW - cosmic dust KW - aldehydes KW - comets KW - Antarctica KW - Queen Alexandra Range Meteorites KW - CM chondrites KW - spectroscopy KW - particles KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673367467?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.atitle=Establishing+a+molecular+relationship+between+chondritic+and+cometary+organic+solids&rft.au=Cody%2C+George+D%3BHeying%2C+Emily%3BAlexander%2C+Conel+M+O%3BNittler%2C+Larry+R%3BKilcoyne%2C+A+L+David%3BSandford%2C+Scott+A%3BStroud%2C+Rhonda+M%3BMacPherson%2C+Glenn+J%3BThiemens%2C+Mark+H&rft.aulast=Cody&rft.aufirst=George&rft.date=2011-11-29&rft.volume=108&rft.issue=48&rft.spage=19171&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.issn=00278424&rft_id=info:doi/10.1073%2Fpnas.1015913108 L2 - http://www.pnas.org/content/by/year LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 48 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2015-04-16 N1 - CODEN - PNASA6 N1 - SubjectsTermNotLitGenreText - aldehydes; Antarctica; applications; aqueous solutions; C-XANES spectra; carbon; carbonaceous chondrites; chondrites; CM chondrites; comets; cosmic dust; cosmochemistry; experimental studies; formaldehyde; geochemistry; insoluble residues; interplanetary dust; ion probe data; mass spectra; meteorites; molecular structure; Murchison Meteorite; nitrogen; NMR spectra; nuclear magnetic resonance; ordinary chondrites; organic compounds; oxygen; particles; polymers; QUE 97008; Queen Alexandra Range Meteorites; refractory materials; scanning transmission X-ray microscopy/spectroscopy; silicates; size; solar system; solution; spectra; spectroscopy; spherules; stony meteorites; STXM; Wild 2 Comet; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1073/pnas.1015913108 ER - TY - NEWS T1 - Maintaining Crew Health One Step at a Time AN - 905934296 JF - UPI Space Daily AU - Lori Meggs for NASA's Marshall Space Flight Center Y1 - 2011/11/24/ PY - 2011 DA - 2011 Nov 24 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/905934296?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Maintaining+Crew+Health+One+Step+at+a+Time&rft.au=Lori+Meggs+for+NASA%27s+Marshall+Space+Flight+Center&rft.aulast=Lori+Meggs+for+NASA%27s+Marshall+Space+Flight+Center&rft.aufirst=&rft.date=2011-11-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-11-25 ER - TY - NEWS T1 - Mobile Launcher Moves to Launch Pad AN - 905934294 JF - UPI Space Daily AU - Steven Siceloff for NASA's Kennedy Space Center Y1 - 2011/11/24/ PY - 2011 DA - 2011 Nov 24 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/905934294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Mobile+Launcher+Moves+to+Launch+Pad&rft.au=Steven+Siceloff+for+NASA%27s+Kennedy+Space+Center&rft.aulast=Steven+Siceloff+for+NASA%27s+Kennedy+Space+Center&rft.aufirst=&rft.date=2011-11-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-11-25 ER - TY - NEWS T1 - Mystery of the Lunar Ionosphere AN - 905934241 JF - UPI Space Daily AU - Dr. Tony Phillips for NASA Science News Y1 - 2011/11/24/ PY - 2011 DA - 2011 Nov 24 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/905934241?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Mystery+of+the+Lunar+Ionosphere&rft.au=Dr.+Tony+Phillips+for+NASA+Science+News&rft.aulast=Dr.+Tony+Phillips+for+NASA+Science+News&rft.aufirst=&rft.date=2011-11-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-11-25 ER - TY - NEWS T1 - Stellar Extremophiles AN - 904424600 JF - UPI Space Daily AU - Dr. Tony Phillips for NASA Science News Y1 - 2011/11/18/ PY - 2011 DA - 2011 Nov 18 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/904424600?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Stellar+Extremophiles&rft.au=Dr.+Tony+Phillips+for+NASA+Science+News&rft.aulast=Dr.+Tony+Phillips+for+NASA+Science+News&rft.aufirst=&rft.date=2011-11-18&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-11-18 ER - TY - NEWS T1 - Scientists Prepare for Coming ATTREX Climate Study AN - 904424597 JF - UPI Space Daily AU - Beth Hagenauer for NASA Dryden News Y1 - 2011/11/18/ PY - 2011 DA - 2011 Nov 18 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/904424597?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Scientists+Prepare+for+Coming+ATTREX+Climate+Study&rft.au=Beth+Hagenauer+for+NASA+Dryden+News&rft.aulast=Beth+Hagenauer+for+NASA+Dryden+News&rft.aufirst=&rft.date=2011-11-18&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-11-18 ER - TY - NEWS T1 - NASA Airborne Mission Maps Remote, Deteriorating Glaciers AN - 907534472 JF - UPI Space Daily AU - Patrick Lynch for NASA's Earth Science News Y1 - 2011/11/16/ PY - 2011 DA - 2011 Nov 16 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/907534472?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=NASA+Airborne+Mission+Maps+Remote%2C+Deteriorating+Glaciers&rft.au=Patrick+Lynch+for+NASA%27s+Earth+Science+News&rft.aulast=Patrick+Lynch+for+NASA%27s+Earth+Science+News&rft.aufirst=&rft.date=2011-11-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-12-02 ER - TY - JOUR T1 - Implications of the first cycle irreversible capacity on cell balancing for Li sub(2)MnO sub(3)-LiMO sub(2) (M = Ni, Mn, Co) Li-ion cathodes AN - 918047633; 15720613 AB - Much of the research on lithium-ion cathodes consisting of layered solid solutions of Li sub(2)MnO sub(3)-LiMO sub(2) (M = Mn, Co, Ni) has focused on identifying the causes of the irreversible capacity loss on the first cycle. However, a key issue that must be addressed is whether the high irreversible capacity observed seen on the first cycle is associated with intercalated lithium at the anode, or if it is associated with irretrievable capacity (i.e., film formation, and/or decomposition reactions). To this end, we have quantified the amount of utilizable lithium that is made available for the anodes when employing Li sub(2)MnO sub(3)-LiMO sub(2) as cathodes. Using a MoS sub(2) anode lithiation plateau transition as a reference point to the amount of lithium transferred to the anode during charge, it has been shown that almost none of the cathode irreversible charge capacity resulted in lithiation of the anode. Further, by reacting charged graphitic anodes that were retrieved from C anode-Li sub(1.2)Ni sub(0.175)Co sub(0.1)Mn sub(0.52)O sub(2) cathode cells with water to generate H sub(2) gas to measure the active amount of lithium in the anode, we confirmed the results with the MoS sub(2) titration experiments, demonstrating that lithium released from the cathode during the first charge is not proportionate to the cathode charge capacity. JF - Journal of Power Sources AU - West, W C AU - Staniewicz, R J AU - Ma, C AU - Robak, J AU - Soler, J AU - Smart, M C AU - Ratnakumar, B V Y1 - 2011/11/15/ PY - 2011 DA - 2011 Nov 15 SP - 9696 EP - 9701 PB - Elesevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 196 IS - 22 SN - 0378-7753, 0378-7753 KW - Environment Abstracts KW - Irreversible capacity KW - MoS2 KW - Li-ion KW - Cathode KW - Cell balancing KW - plateaus KW - Decomposition KW - Lithium KW - ENA 07:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/918047633?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Power+Sources&rft.atitle=Implications+of+the+first+cycle+irreversible+capacity+on+cell+balancing+for+Li+sub%282%29MnO+sub%283%29-LiMO+sub%282%29+%28M+%3D+Ni%2C+Mn%2C+Co%29+Li-ion+cathodes&rft.au=West%2C+W+C%3BStaniewicz%2C+R+J%3BMa%2C+C%3BRobak%2C+J%3BSoler%2C+J%3BSmart%2C+M+C%3BRatnakumar%2C+B+V&rft.aulast=West&rft.aufirst=W&rft.date=2011-11-15&rft.volume=196&rft.issue=22&rft.spage=9696&rft.isbn=&rft.btitle=&rft.title=Journal+of+Power+Sources&rft.issn=03787753&rft_id=info:doi/10.1016%2Fj.jpowsour.2011.07.050 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-01-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - plateaus; Decomposition; Lithium DO - http://dx.doi.org/10.1016/j.jpowsour.2011.07.050 ER - TY - JOUR T1 - Ocean deoxygenation; past, present, and future AN - 913703563; 2012-011235 AB - To a first order, the oxygen content of the ocean interior is determined by the influx of the gas across the air-sea surface (i.e., ventilation) and consumption due primarily to microbial respiration. As these two competing processes vary in space and time, so does the concentration of oxygen in the ocean interior. Although oxygen concentrations on continental margins are declining in many regions due to increased anthropogenic nutrient loadings [e.g., Rabalais et al., 2002], oxygen also appears to be declining in both the central North Pacific Ocean and the tropical oceans worldwide [Emerson et al., 2004; Whitney et al., 2007; Keeling et al., 2010] (see Figure 1). It is unclear whether the loss throughout the basins in the open ocean is a long-term, nonperiodic (secular) trend related to climate change, the result of natural cyclical processes, or a combination of both (Figure 2). If related to climate change, a number of important factors may be involved, including decreased solubility of oxygen as waters warm, decreased ventilation at high latitudes associated with increased ocean stratification, and changes in respiration in the ocean interior. JF - Eos, Transactions, American Geophysical Union AU - Falkowski, Paul G AU - Algeo, Thomas AU - Codispoti, Lou AU - Deutsch, Curtis AU - Emerson, Steven AU - Hales, Burke AU - Huey, Raymond B AU - Jenkins, William J AU - Kump, Lee R AU - Levin, Lisa A AU - Lyons, Timothy W AU - Nelson, Norman B AU - Schofield, Oscar S AU - Summons, Roger AU - Talley, Lynne D AU - Thomas, Ellen AU - Whitney, Frank AU - Pilcher, Carl B Y1 - 2011/11/15/ PY - 2011 DA - 2011 Nov 15 SP - 409 EP - 410 PB - American Geophysical Union, Washington, DC VL - 92 IS - 46 SN - 0096-3941, 0096-3941 KW - processes KW - upwelling KW - concentration KW - oxygen KW - oceanic anoxic events KW - cyclic processes KW - solutes KW - paleo-oceanography KW - climate change KW - Phanerozoic KW - spatial variations KW - paleoenvironment KW - dissolved oxygen KW - temporal distribution KW - world ocean KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/913703563?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Ocean+deoxygenation%3B+past%2C+present%2C+and+future&rft.au=Falkowski%2C+Paul+G%3BAlgeo%2C+Thomas%3BCodispoti%2C+Lou%3BDeutsch%2C+Curtis%3BEmerson%2C+Steven%3BHales%2C+Burke%3BHuey%2C+Raymond+B%3BJenkins%2C+William+J%3BKump%2C+Lee+R%3BLevin%2C+Lisa+A%3BLyons%2C+Timothy+W%3BNelson%2C+Norman+B%3BSchofield%2C+Oscar+S%3BSummons%2C+Roger%3BTalley%2C+Lynne+D%3BThomas%2C+Ellen%3BWhitney%2C+Frank%3BPilcher%2C+Carl+B&rft.aulast=Falkowski&rft.aufirst=Paul&rft.date=2011-11-15&rft.volume=92&rft.issue=46&rft.spage=409&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/10.1029%2F2011EO460001 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292324-9250 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 16 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2014-03-14 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - climate change; concentration; cyclic processes; dissolved oxygen; oceanic anoxic events; oxygen; paleo-oceanography; paleoenvironment; Phanerozoic; processes; solutes; spatial variations; temporal distribution; upwelling; world ocean DO - http://dx.doi.org/10.1029/2011EO460001 ER - TY - JOUR T1 - Characterizing 3D vegetation structure from space: Mission requirements AN - 902382920; 15707891 AB - Human and natural forces are rapidly modifying the global distribution and structure of terrestrial ecosystems on which all of life depends, altering the global carbon cycle, affecting our climate now and for the foreseeable future, causing steep reductions in species diversity, and endangering Earth's sustainability. To understand changes and trends in terrestrial ecosystems and their functioning as carbon sources and sinks, and to characterize the impact of their changes on climate, habitat and biodiversity, new space assets are urgently needed to produce high spatial resolution global maps of the three-dimensional (3D) structure of vegetation, its biomass above ground, the carbon stored within and the implications for atmospheric green house gas concentrations and climate. These needs were articulated in a 2007 National Research Council (NRC) report (NRC, 2007) recommending a new satellite mission, DESDynI, carrying an L-band Polarized Synthetic Aperture Radar (Pol-SAR) and a multi-beam lidar (Light RAnging And Detection) operating at 1064nm. The objectives of this paper are to articulate the importance of these new, multi-year, 3D vegetation structure and biomass measurements, to briefly review the feasibility of radar and lidar remote sensing technology to meet these requirements, to define the data products and measurement requirements, and to consider implications of mission durations. The paper addresses these objectives by synthesizing research results and other input from a broad community of terrestrial ecology, carbon cycle, and remote sensing scientists and working groups. We conclude that:(1)Current global biomass and 3-D vegetation structure information is unsuitable for both science and management and policy. The only existing global datasets of biomass are approximations based on combining land cover type and representative carbon values, instead of measurements of actual biomass. Current measurement attempts based on radar and multispectral data have low explanatory power outside low biomass areas. There is no current capability for repeatable disturbance and regrowth estimates. JF - Remote Sensing of Environment AU - Hall, Forrest G AU - Bergen, Kathleen AU - Blair, James B AU - Dubayah, Ralph AU - Houghton, Richard AU - Hurtt, George AU - Kellndorfer, Josef AU - Lefsky, Michael AU - Ranson, Jon AU - Saatchi, Sasan AU - Shugart, H H AU - Wickland, Diane Y1 - 2011/11/15/ PY - 2011 DA - 2011 Nov 15 SP - 2753 EP - 2775 PB - Elsevier B.V., Box 882 New York NY 10159 United States VL - 115 IS - 11 SN - 0034-4257, 0034-4257 KW - Environment Abstracts; Ecology Abstracts; Sustainability Science Abstracts KW - Biomass KW - 3D vegetation tructure KW - Carbon cycle KW - Remote sensing KW - Radar KW - Lidar KW - DESDynI KW - Feasibility studies KW - Biological diversity KW - Biodiversity KW - spatial discrimination KW - Carbon sources KW - Maps KW - Houses KW - Data processing KW - Climate KW - Vegetation KW - Habitat KW - Satellites KW - Light effects KW - Terrestrial ecosystems KW - Reviews KW - Species diversity KW - terrestrial ecosystems KW - M3 1010:Issues in Sustainable Development KW - D 04030:Models, Methods, Remote Sensing KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/902382920?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remote+Sensing+of+Environment&rft.atitle=Characterizing+3D+vegetation+structure+from+space%3A+Mission+requirements&rft.au=Hall%2C+Forrest+G%3BBergen%2C+Kathleen%3BBlair%2C+James+B%3BDubayah%2C+Ralph%3BHoughton%2C+Richard%3BHurtt%2C+George%3BKellndorfer%2C+Josef%3BLefsky%2C+Michael%3BRanson%2C+Jon%3BSaatchi%2C+Sasan%3BShugart%2C+H+H%3BWickland%2C+Diane&rft.aulast=Hall&rft.aufirst=Forrest&rft.date=2011-11-15&rft.volume=115&rft.issue=11&rft.spage=2753&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&rft_id=info:doi/10.1016%2Fj.rse.2011.01.024 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-10-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Houses; Data processing; Climate; Remote sensing; Carbon cycle; Vegetation; Biodiversity; spatial discrimination; Carbon sources; Habitat; Maps; Biomass; Satellites; Light effects; Terrestrial ecosystems; Reviews; Radar; Species diversity; Feasibility studies; Biological diversity; Lidar; terrestrial ecosystems DO - http://dx.doi.org/10.1016/j.rse.2011.01.024 ER - TY - JOUR T1 - Impact of spatial variability of tropical forest structure on radar estimation of aboveground biomass AN - 1671477547; 15707885 AB - Understanding the spatial variability of tropical forest structure and its impact on the radar estimation of aboveground biomass (AGB) is important to assess the scale and accuracy of mapping AGB with future low frequency radar missions. We used forest inventory plots in old growth, secondary succession, and forest plantations at the La Selva Biological Station in Costa Rica to examine the spatial variability of AGB and its impact on the L-band and P-band polarimetric radar estimation of AGB at multiple spatial scales. Field estimation of AGB was determined from tree size measurements and an allometric equation developed for tropical wet forests. The field data showed very high spatial variability of forest structure with no spatial dependence at a scale above 11m in old-growth forest. Plot sizes of greater than 0.25ha reduced the coefficients of variation in AGB to below 20% and yielded a stationary and normal distribution of AGB over the landscape. Radar backscatter measurements at all polarization channels were strongly positively correlated with AGB at three scales of 0.25ha, 0.5ha, and 1.0ha. Among these measurements, PHV and LHV showed strong sensitivity to AGB<300Mgha-1 and AGB<150Mgha-1 respectively at the 1.0ha scale. The sensitivity varied across forest types because of differences in the effects of forest canopy and gap structure on radar attenuation and scattering. Spatial variability of structure and speckle noise in radar measurements contributed equally to degrading the sensitivity of the radar measurements to AGB at spatial scales less than 1.0ha. By using algorithms based on polarized radar backscatter, we estimated AGB with RMSE=22.6Mgha-1 for AGB<300Mgha-1 at P-band and RMSE=23.8Mgha-1 for AGB<150Mgha-1 at L-band and with the accuracy optimized at 1-ha scale within 95% confidence interval. By adding the forest height, estimated from the C-band Interferometry data as an independent variable to the algorithm, the AGB estimation improved beyond the backscatter sensitivity by 20% at P-band and 40% at L-band. The results suggested the estimation of AGB can be improved substantially from the fusion of lidar or InSAR derived forest height with the polarimetric backscatter. JF - Remote Sensing of Environment AU - Saatchi, Sassan AU - Marlier, Miriam AU - Chazdon, Robin L AU - Clark, David B AU - Russell, Ann E Y1 - 2011/11/15/ PY - 2011 DA - 2011 Nov 15 SP - 2836 EP - 2849 PB - Elsevier B.V., Box 882 New York NY 10159 United States VL - 115 IS - 11 SN - 0034-4257, 0034-4257 KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE); Aerospace & High Technology Database (AH) KW - Radar KW - Lidar KW - Biomass KW - Carbon KW - Forest structure KW - Tropical forests KW - Costa Rica KW - La Selva Biological Station KW - DESDynl KW - BIOMASS KW - Radar measurement KW - Algorithms KW - Forests KW - Backscattering KW - Mathematical analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1671477547?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remote+Sensing+of+Environment&rft.atitle=Impact+of+spatial+variability+of+tropical+forest+structure+on+radar+estimation+of+aboveground+biomass&rft.au=Saatchi%2C+Sassan%3BMarlier%2C+Miriam%3BChazdon%2C+Robin+L%3BClark%2C+David+B%3BRussell%2C+Ann+E&rft.aulast=Saatchi&rft.aufirst=Sassan&rft.date=2011-11-15&rft.volume=115&rft.issue=11&rft.spage=2836&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&rft_id=info:doi/10.1016%2Fj.rse.2010.07.015 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-02-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.rse.2010.07.015 ER - TY - CPAPER T1 - Perceptual brightness decisions do not use a difference model T2 - 2011 Annual meeting of the Society for Neuroscience (Neuroscience 2011) AN - 1312938242; 6102949 JF - 2011 Annual meeting of the Society for Neuroscience (Neuroscience 2011) AU - Liston, D AU - Stone, L Y1 - 2011/11/12/ PY - 2011 DA - 2011 Nov 12 KW - Brightness KW - Models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312938242?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+meeting+of+the+Society+for+Neuroscience+%28Neuroscience+2011%29&rft.atitle=Perceptual+brightness+decisions+do+not+use+a+difference+model&rft.au=Liston%2C+D%3BStone%2C+L&rft.aulast=Liston&rft.aufirst=D&rft.date=2011-11-12&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+meeting+of+the+Society+for+Neuroscience+%28Neuroscience+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.sfn.org/am2011/index.aspx?pagename=final_program LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - NEWS T1 - A Star with Spiral Arms AN - 903078317 JF - UPI Space Daily AU - Dr. Tony Phillips for NASA Science News Y1 - 2011/11/11/ PY - 2011 DA - 2011 Nov 11 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/903078317?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=A+Star+with+Spiral+Arms&rft.au=Dr.+Tony+Phillips+for+NASA+Science+News&rft.aulast=Dr.+Tony+Phillips+for+NASA+Science+News&rft.aufirst=&rft.date=2011-11-11&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-11-11 ER - TY - NEWS T1 - Which Way Does the Wind Blow? Let's Find Out! AN - 903061034 JF - UPI Space Daily AU - Michael Finneran for NASA Langley Research Center Y1 - 2011/11/11/ PY - 2011 DA - 2011 Nov 11 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/903061034?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Which+Way+Does+the+Wind+Blow%3F+Let%27s+Find+Out%21&rft.au=Michael+Finneran+for+NASA+Langley+Research+Center&rft.aulast=Michael+Finneran+for+NASA+Langley+Research+Center&rft.aufirst=&rft.date=2011-11-11&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-11-11 ER - TY - NEWS T1 - Hinode's First Light and Five More Years AN - 903060974 JF - UPI Space Daily AU - Karen C. Fox for NASA's Goddard Space Flight Center Y1 - 2011/11/11/ PY - 2011 DA - 2011 Nov 11 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/903060974?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Hinode%27s+First+Light+and+Five+More+Years&rft.au=Karen+C.+Fox+for+NASA%27s+Goddard+Space+Flight+Center&rft.aulast=Karen+C.+Fox+for+NASA%27s+Goddard+Space+Flight+Center&rft.aufirst=&rft.date=2011-11-11&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-11-11 ER - TY - CPAPER T1 - Risk Assessment Overview T2 - 2011 ASME International Mechanical Engineering Congress & Exposition (ASME 2011) AN - 1313064471; 6114384 JF - 2011 ASME International Mechanical Engineering Congress & Exposition (ASME 2011) AU - Prassinos, Peter AU - Lyver, John AU - Bui, Chinh Y1 - 2011/11/11/ PY - 2011 DA - 2011 Nov 11 KW - Risk assessment KW - Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313064471?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+ASME+International+Mechanical+Engineering+Congress+%26+Exposition+%28ASME+2011%29&rft.atitle=Risk+Assessment+Overview&rft.au=Prassinos%2C+Peter%3BLyver%2C+John%3BBui%2C+Chinh&rft.aulast=Prassinos&rft.aufirst=Peter&rft.date=2011-11-11&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+ASME+International+Mechanical+Engineering+Congress+%26+Exposition+%28ASME+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.asmeconferences.org/Congress2011/TechnicalProgramOverview.cfm LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Modeling and Validation of a Prototype Thermally-Enhanced Polymer Heat Exchanger T2 - 2011 ASME International Mechanical Engineering Congress & Exposition (ASME 2011) AN - 1313058096; 6112317 JF - 2011 ASME International Mechanical Engineering Congress & Exposition (ASME 2011) AU - Robinson, Frank AU - Cevallos, Juan AU - Bar-Cohen, Avram AU - Bruck, Hugh Y1 - 2011/11/11/ PY - 2011 DA - 2011 Nov 11 KW - Prototypes KW - Heat exchangers KW - Polymers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313058096?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+ASME+International+Mechanical+Engineering+Congress+%26+Exposition+%28ASME+2011%29&rft.atitle=Modeling+and+Validation+of+a+Prototype+Thermally-Enhanced+Polymer+Heat+Exchanger&rft.au=Robinson%2C+Frank%3BCevallos%2C+Juan%3BBar-Cohen%2C+Avram%3BBruck%2C+Hugh&rft.aulast=Robinson&rft.aufirst=Frank&rft.date=2011-11-11&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+ASME+International+Mechanical+Engineering+Congress+%26+Exposition+%28ASME+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.asmeconferences.org/Congress2011/TechnicalProgramOverview.cfm LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Development of a Practical Broadband Active Vibration Control System T2 - 2011 ASME International Mechanical Engineering Congress & Exposition (ASME 2011) AN - 1313025981; 6113983 JF - 2011 ASME International Mechanical Engineering Congress & Exposition (ASME 2011) AU - Schiller, Noah AU - Perey, Daniel AU - Cabell, Randolph Y1 - 2011/11/11/ PY - 2011 DA - 2011 Nov 11 KW - Vibration KW - Control systems UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313025981?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+ASME+International+Mechanical+Engineering+Congress+%26+Exposition+%28ASME+2011%29&rft.atitle=Development+of+a+Practical+Broadband+Active+Vibration+Control+System&rft.au=Schiller%2C+Noah%3BPerey%2C+Daniel%3BCabell%2C+Randolph&rft.aulast=Schiller&rft.aufirst=Noah&rft.date=2011-11-11&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+ASME+International+Mechanical+Engineering+Congress+%26+Exposition+%28ASME+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.asmeconferences.org/Congress2011/TechnicalProgramOverview.cfm LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Designing in Safety Through Early Safety Requirements Management T2 - 2011 ASME International Mechanical Engineering Congress & Exposition (ASME 2011) AN - 1312991072; 6114282 JF - 2011 ASME International Mechanical Engineering Congress & Exposition (ASME 2011) AU - Lyver, John AU - Prassinos, Peter AU - Bui, Chinh Y1 - 2011/11/11/ PY - 2011 DA - 2011 Nov 11 KW - Mechanical engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312991072?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+ASME+International+Mechanical+Engineering+Congress+%26+Exposition+%28ASME+2011%29&rft.atitle=Designing+in+Safety+Through+Early+Safety+Requirements+Management&rft.au=Lyver%2C+John%3BPrassinos%2C+Peter%3BBui%2C+Chinh&rft.aulast=Lyver&rft.aufirst=John&rft.date=2011-11-11&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+ASME+International+Mechanical+Engineering+Congress+%26+Exposition+%28ASME+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.asmeconferences.org/Congress2011/TechnicalProgramOverview.cfm LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - NEWS T1 - Large asteroid to pass by Earth Nov 8 but what if it did not AN - 906285429 JF - UPI Space Daily AU - Elizabeth K. Gardner for NASA's NEO program office Y1 - 2011/11/10/ PY - 2011 DA - 2011 Nov 10 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/906285429?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Large+asteroid+to+pass+by+Earth+Nov+8+but+what+if+it+did+not&rft.au=Elizabeth+K.+Gardner+for+NASA%27s+NEO+program+office&rft.aulast=Elizabeth+K.+Gardner+for+NASA%27s+NEO+program+office&rft.aufirst=&rft.date=2011-11-10&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-11-28 ER - TY - NEWS T1 - What Goes Up Must Come Down As Orion Crew Vehicle Development Continues AN - 902778258 JF - UPI Space Daily AU - Denise Lineberry for Langley Research Center Y1 - 2011/11/10/ PY - 2011 DA - 2011 Nov 10 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/902778258?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=What+Goes+Up+Must+Come+Down+As+Orion+Crew+Vehicle+Development+Continues&rft.au=Denise+Lineberry+for+Langley+Research+Center&rft.aulast=Denise+Lineberry+for+Langley+Research+Center&rft.aufirst=&rft.date=2011-11-10&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-11-10 ER - TY - JOUR T1 - Atmospheric Blocking and Atlantic Multidecadal Ocean Variability AN - 912923357; 16038894 AB - Atmospheric blocking over the northern North Atlantic, which involves isolation of large regions of air from the westerly circulation for 5 days or more, influences fundamentally the ocean circulation and upper ocean properties by affecting wind patterns. Winters with clusters of more frequent blocking between Greenland and western Europe correspond to a warmer, more saline subpolar ocean. The correspondence between blocked westerly winds and warm ocean holds in recent decadal episodes (especially 1996 to 2010). It also describes much longer time scale Atlantic multidecadal ocean variability (AMV), including the extreme pre-greenhouse-gas northern warming of the 1930s to 1960s. The space-time structure of the wind forcing associated with a blocked regime leads to weaker ocean gyres and weaker heat exchange, both of which contribute to the warm phase of AMV. JF - Science (Washington) AU - Haekkinen, Sirpa AU - Rhines, Peter B AU - Worthen, Denise L AD - National Aeronautics and Space Administration (NASA) Goddard Space Flight Center, Code 615, Greenbelt, MD 20771, USA Y1 - 2011/11/04/ PY - 2011 DA - 2011 Nov 04 SP - 655 EP - 659 PB - American Association for the Advancement of Science, 1200 New York Avenue, NW Washington DC 20005 United States VL - 334 IS - 6056 SN - 0036-8075, 0036-8075 KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts KW - Heat exchange KW - Westerlies KW - Ocean circulation KW - AN, North Atlantic KW - Oceanic circulation KW - winter KW - gyres KW - ANE, Europe KW - Oceans KW - upper ocean KW - Wind patterns KW - Circulation patterns KW - AN, Greenland KW - Atmospheric circulation patterns KW - P 0000:AIR POLLUTION KW - M2 551.465:Structure/Dynamics/Circulation (551.465) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/912923357?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+%28Washington%29&rft.atitle=Atmospheric+Blocking+and+Atlantic+Multidecadal+Ocean+Variability&rft.au=Haekkinen%2C+Sirpa%3BRhines%2C+Peter+B%3BWorthen%2C+Denise+L&rft.aulast=Haekkinen&rft.aufirst=Sirpa&rft.date=2011-11-04&rft.volume=334&rft.issue=6056&rft.spage=655&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-12-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Oceanic circulation; Westerlies; Wind patterns; Circulation patterns; Atmospheric circulation patterns; winter; Heat exchange; gyres; Oceans; Ocean circulation; upper ocean; ANE, Europe; AN, North Atlantic; AN, Greenland ER - TY - JOUR T1 - Spectral reflectance properties of carbonaceous chondrites; 2, CM chondrites AN - 959103398; 2012-035543 JF - Icarus AU - Cloutis, Edward A AU - Hudon, P AU - Hiroi, T AU - Gaffey, Michael J AU - Mann, P Y1 - 2011/11// PY - 2011 DA - November 2011 SP - 309 EP - 346 PB - Elsevier, New York, NY VL - 216 IS - 1 SN - 0019-1035, 0019-1035 KW - silicates KW - serpentine KW - near-infrared spectra KW - stony meteorites KW - asteroids KW - parent bodies KW - optical spectra KW - grain size KW - carbonaceous chondrites KW - weathering KW - wavelength KW - aqueous alteration KW - meteorites KW - cronstedtite KW - serpentine group KW - classification KW - sheet silicates KW - spectra KW - CM chondrites KW - chondrites KW - reflectance KW - modal analysis KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959103398?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Spectral+reflectance+properties+of+carbonaceous+chondrites%3B+2%2C+CM+chondrites&rft.au=Cloutis%2C+Edward+A%3BHudon%2C+P%3BHiroi%2C+T%3BGaffey%2C+Michael+J%3BMann%2C+P&rft.aulast=Cloutis&rft.aufirst=Edward&rft.date=2011-11-01&rft.volume=216&rft.issue=1&rft.spage=309&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2011.09.009 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 194 N1 - PubXState - NY N1 - Document feature - illus. incl. 12 tables N1 - SuppNotes - Supplementary data available in online version N1 - Last updated - 2012-06-07 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - aqueous alteration; asteroids; carbonaceous chondrites; chondrites; classification; CM chondrites; cronstedtite; grain size; meteorites; modal analysis; near-infrared spectra; optical spectra; parent bodies; reflectance; serpentine; serpentine group; sheet silicates; silicates; spectra; stony meteorites; wavelength; weathering DO - http://dx.doi.org/10.1016/j.icarus.2011.09.009 ER - TY - JOUR T1 - Starting to partner with NASA in space and earth science AN - 959100813; 2012-033401 JF - Advances in Space Research AU - Allen, Marc S AU - Hertz, Paul L Y1 - 2011/11// PY - 2011 DA - November 2011 SP - 1638 EP - 1642 PB - Elsevier, Oxford-New York VL - 48 IS - 10 SN - 0273-1177, 0273-1177 KW - solar system KW - GLOBE Program KW - NASA KW - government agencies KW - policy KW - research KW - exploration KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959100813?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Space+Research&rft.atitle=Starting+to+partner+with+NASA+in+space+and+earth+science&rft.au=Allen%2C+Marc+S%3BHertz%2C+Paul+L&rft.aulast=Allen&rft.aufirst=Marc&rft.date=2011-11-01&rft.volume=48&rft.issue=10&rft.spage=1638&rft.isbn=&rft.btitle=&rft.title=Advances+in+Space+Research&rft.issn=02731177&rft_id=info:doi/10.1016%2Fj.asr.2011.08.013 L2 - http://www.sciencedirect.com/science/journal/02731177 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - ASRSDW N1 - SubjectsTermNotLitGenreText - exploration; GLOBE Program; government agencies; NASA; policy; research; solar system DO - http://dx.doi.org/10.1016/j.asr.2011.08.013 ER - TY - JOUR T1 - Teleconnections in a warmer climate: the pliocene perspective AN - 926884198; 16333195 AB - Migrations toward altered sea surface temperature (SST) patterns in the Indo-Pacific region are present in the recent observational record and in future global warming projections. These SSTs are in the form of "permanent" El Nino-like (herein termed "El Padre") and Indian Ocean Dipole (IOD)-like patterns. The Early Pliocene Warm Period, which bears similarity to future warming projections, may have also exhibited these Indo-Pacific SST patterns, as suggested by regional terrestrial paleo-climatic data and general circulation model studies. The ability to corroborate this assessment with paleo-data reconstructions is an advantage of the warm Pliocene period that is not afforded by future warming scenarios. Thus, the Pliocene period provides us with a warm-climate perspective and test bed for understanding potential changes to future atmospheric interactions given these altered SST states. This study specifically assesses how atmospheric teleconnections from El Padre/IOD SST patterns are generated and propagate to create the regional climate signals of the Pliocene period, as these signals may be representative of future regional climatic changes as well. To do this, we construct a holistic diagnostic rubric that allows us to examine atmospheric teleconnections, both energetically and dynamically, as produced by a general circulation model. We incorporate KE', a diagnostic adapted from the eddy kinetic energy generation field, to assess the available energy transferred to these teleconnections. Using this methodology, we found that relative to our Modern Control experiments, weaker atmospheric teleconnections prevail under warm Pliocene conditions, although pathways of propagation still appear directed toward the southwestern United States from our tropical Pacific sector forcing. Propagation directly emanating from the Indian Ocean forcing sector appears to be largely blocked, although indirect teleconnective pathways appear traversing the Asian continent toward the North Pacific. The changes in the atmospheric circulation of Indian Ocean region in response to the underlying specified SST forcing (and indicated by Pliocene paleo-data) may have a host of implications for energy transfer out of and into the region, including interactions with the Asian jet stream and changes to the seasonal monsoon cycle. These interactions warrant further study in both past and future warm climate scenarios. JF - Climate Dynamics AU - Shukla, Sonali P AU - Chandler, Mark A AU - Rind, David AU - Sohl, Linda E AU - Jonas, Jeff AU - Lerner, Jean AD - Deptartment of Earth and Environmental Sciences and the NASA Goddard Institute for Space Studies, Columbia University, New York, NY, USA, sps2113@columbia.edu Y1 - 2011/11// PY - 2011 DA - November 2011 SP - 1869 EP - 1887 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 37 IS - 9-10 SN - 0930-7575, 0930-7575 KW - Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts; Sustainability Science Abstracts KW - Palaeo studies KW - pliocene KW - Climate change KW - Regional climates KW - IS, Tropical Pacific KW - Paleoclimates KW - Sulfur dioxide KW - IN, North Pacific KW - Regional climatic changes KW - Paleoceanography KW - I, Indo-Pacific KW - Sea surface temperatures KW - Seasonal variations KW - Teleconnections KW - Temperature effects KW - ISW, Indian Ocean KW - teleconnections KW - Climate KW - Atmospheric circulation KW - Greenhouse effect KW - USA KW - Oceans KW - General circulation models KW - Energy transfer KW - Atmospheric forcing KW - Global warming KW - Pliocene KW - Indo-Pacific Region KW - Q2 09243:Structure, mechanics and thermodynamics KW - O 2010:Physical Oceanography KW - M2 551.583:Variations (551.583) KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/926884198?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climate+Dynamics&rft.atitle=Teleconnections+in+a+warmer+climate%3A+the+pliocene+perspective&rft.au=Shukla%2C+Sonali+P%3BChandler%2C+Mark+A%3BRind%2C+David%3BSohl%2C+Linda+E%3BJonas%2C+Jeff%3BLerner%2C+Jean&rft.aulast=Shukla&rft.aufirst=Sonali&rft.date=2011-11-01&rft.volume=37&rft.issue=9-10&rft.spage=1869&rft.isbn=&rft.btitle=&rft.title=Climate+Dynamics&rft.issn=09307575&rft_id=info:doi/10.1007%2Fs00382-010-0976-y LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-03-01 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Temperature effects; Palaeo studies; Energy transfer; Climate change; Atmospheric forcing; Pliocene; Greenhouse effect; Atmospheric circulation; Teleconnections; General circulation models; Regional climatic changes; Paleoceanography; Global warming; Regional climates; Sea surface temperatures; Paleoclimates; teleconnections; Sulfur dioxide; Oceans; pliocene; Climate; Seasonal variations; ISW, Indian Ocean; USA; IN, North Pacific; Indo-Pacific Region; I, Indo-Pacific; IS, Tropical Pacific DO - http://dx.doi.org/10.1007/s00382-010-0976-y ER - TY - JOUR T1 - Re-examination of the formation ages of the Apollo 16 regolith breccias AN - 921718326; 2012-024250 AB - The lunar regolith is exposed to irradiation from the solar wind and to bombardment by asteroids, comets and inter-planetary dust. Fragments of projectiles in the lunar regolith can potentially provide a direct measure of the sources of exogenous material being delivered to the Moon. Constraining the temporal flux of their delivery helps to address key questions about the bombardment history of the inner Solar System. Here, we use a revised antiquity calibration (after Eugster et al., 2001) that utilises the ratio of trapped (super 40) Ar/ (super 36) Ar ('parentless' (super 40) Ar derived from radioactive decay of (super 40) K, against solar wind derived (super 36) Ar) to semi-quantitatively calculate the timing of the assembly of the Apollo 16 regolith breccias. We use the trapped (super 40) Ar/ (super 36) Ar ratios reported by McKay et al. (1986). Our model indicates that the Apollo 16 ancient regolith breccia population was formed between approximately 3.8 and 3.4 Ga, consistent with regoliths developed and assembled after the Imbrium basin-forming event at approximately 3.85 Ga, and during a time of declining basin-forming impacts. The material contained within the ancient samples potentially provides evidence of impactors delivered to the Moon in the Late-Imbrian epoch. We also find that a young regolith population was assembled, probably by local impacts in the Apollo 16 area, in the Eratosthenian period between approximately 2.5 and 2.2 Ga, providing insights to the sources of post-basin bombardment. The 'soil-like' regolith breccia population, and the majority of local Apollo 16 soils, were likely closed in the last 2 Ga and, therefore, potentially provide an archive of projectile types in the Eratosthenian and Copernican periods. JF - Geochimica et Cosmochimica Acta AU - Joy, Katherine H AU - Kring, David A AU - Bogard, Donald D AU - McKay, David S AU - Zolensky, Michael E Y1 - 2011/11// PY - 2011 DA - November 2011 SP - 7208 EP - 7225 PB - Elsevier, New York, NY VL - 75 IS - 22 SN - 0016-7037, 0016-7037 KW - upper Precambrian KW - Paleoproterozoic KW - lunar breccia KW - Descartes Mountains Formation KW - Apollo Program KW - dates KW - metamorphic rocks KW - absolute age KW - Archean KW - Mare Nectaris KW - Ar/Ar KW - solar system KW - breccia KW - Precambrian KW - impactites KW - Moon KW - Proterozoic KW - Cayley Formation KW - impact breccia KW - impacts KW - Mare Imbrium KW - Descartes Mountains KW - regolith KW - Apollo 16 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921718326?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Re-examination+of+the+formation+ages+of+the+Apollo+16+regolith+breccias&rft.au=Joy%2C+Katherine+H%3BKring%2C+David+A%3BBogard%2C+Donald+D%3BMcKay%2C+David+S%3BZolensky%2C+Michael+E&rft.aulast=Joy&rft.aufirst=Katherine&rft.date=2011-11-01&rft.volume=75&rft.issue=22&rft.spage=7208&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2011.09.018 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 134 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - absolute age; Apollo 16; Apollo Program; Ar/Ar; Archean; breccia; Cayley Formation; dates; Descartes Mountains; Descartes Mountains Formation; impact breccia; impactites; impacts; lunar breccia; Mare Imbrium; Mare Nectaris; metamorphic rocks; Moon; Paleoproterozoic; Precambrian; Proterozoic; regolith; solar system; upper Precambrian DO - http://dx.doi.org/10.1016/j.gca.2011.09.018 ER - TY - JOUR T1 - Incidence of bacteremia at the time of ICU admission and its impact on outcome AN - 912852871 AB - Context: Blood culture is routinely taken at the time of admission to the intensive care unit (ICU) for patients suspected to have infection. We undertook this study to determine the incidence of bacteremia at the time of ICU admission and to assess its impact on the outcome. Methods: Retrospective cohort study from all the admissions in ICU, in whom blood cultures sent at the time of admission were analyzed. Data regarding patient demographics, probable source of infection, previous antibiotic use and ICU course was recorded. Severity of illness on admission was assessed by acute physiology and chronic health evaluation II score. Statistical Analysis: Qualitative data were analyzed using Chi-square or Fisher Exact test and quantitative data were analyzed using Student's t-test. Primary outcome measure was ICU mortality. Results: Of 567 patients, 42% patients were on antibiotics. Sixty-four percent of the patients were direct ICU admission from casualty, 10.76% were from wards and 6.17% from other ICUs, and 19.05% were transfers from other hospitals. Blood cultures were positive in 10.6% patients. Mortality was significantly higher in patients with positive blood cultures (45% vs. 13.6%; P=0.000). On univariate analysis, only previous antibiotic use was statistically associated with higher mortality (P=0.011). Bacteremic patients who were already on antibiotics had a significantly higher mortality (OR 12.9, 95% CI: 1.6-100). Conclusions: Blood cultures may be positive in only minority of the patients with suspected infection admitted to ICU. Nevertheless, the prognosis of those patients with positive blood culture is worse, especially if culture is positive in spite of the patient being on antibiotics. JF - Indian Journal of Anesthesia AU - Nasa, Prashant AU - Juneja, Deven AU - Singh, Omender AU - Dang, Rohit AU - Arora, Vikas AU - Saxena, Sanjay Y1 - 2011/11// PY - 2011 DA - Nov 2011 SP - 594 EP - 598 CY - Belagaum PB - Medknow Publications & Media Pvt. Ltd. VL - 55 IS - 6 SN - 00195049 KW - Medical Sciences--Anaesthesiology KW - Clinical outcomes KW - Bacterial infections KW - Intensive care UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/912852871?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthcompleteshell&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Indian+Journal+of+Anesthesia&rft.atitle=Incidence+of+bacteremia+at+the+time+of+ICU+admission+and+its+impact+on+outcome&rft.au=Nasa%2C+Prashant%3BJuneja%2C+Deven%3BSingh%2C+Omender%3BDang%2C+Rohit%3BArora%2C+Vikas%3BSaxena%2C+Sanjay&rft.aulast=Nasa&rft.aufirst=Prashant&rft.date=2011-11-01&rft.volume=55&rft.issue=6&rft.spage=594&rft.isbn=&rft.btitle=&rft.title=Indian+Journal+of+Anesthesia&rft.issn=00195049&rft_id=info:doi/10.4103%2F0019-5049.90615 LA - English DB - ProQuest Central N1 - Copyright - Copyright Medknow Publications & Media Pvt Ltd Nov 2011 N1 - Last updated - 2013-02-19 DO - http://dx.doi.org/10.4103/0019-5049.90615 ER - TY - NEWS T1 - Strange Hollows Discovered on Mercury AN - 901274082 JF - UPI Space Daily AU - Dauna Coulter for NASA Science News Y1 - 2011/11/01/ PY - 2011 DA - 2011 Nov 01 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/901274082?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Strange+Hollows+Discovered+on+Mercury&rft.au=Dauna+Coulter+for+NASA+Science+News&rft.aulast=Dauna+Coulter+for+NASA+Science+News&rft.aufirst=&rft.date=2011-11-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-11-01 ER - TY - JOUR T1 - Education and outreach bring NASA heliophysics to the public AN - 1712570998; PQ0001956001 AB - Educating and inspiring students, teachers, and the public by communicating advances in heliophysics science is the objective of the education and public outreach (E/PO) specialists at the Heliophysics Science Division (HSD) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, Md. The specialists carry out NASA's E/PO goal to enhance the nation's formal education system and contribute to the broad public understanding of science, math, and technology. HSD E/PO projects exploit community best practices to meet or surpass NASA's requirements, which include attention to quality; leverage through internal and external partnerships; and a focus on customer needs, project sustainability, and audience diversity. One key to the group's success is the involvement of enthusiastic HSD research scientists who directly interface with E/PO specialists and various audiences, verify scientific content, and/or provide data access or other resources. Scientists also mentor interns from high school to graduate school through NASA and GSFC programs, and several have shared their science with the public via appearances on national media, including the National Geographic and History channels as well as local news. JF - EOS, Transactions, American Geophysical Union AU - Barbier, Beth AD - Heliophysics Science Division, NASA Goddard Space Flight Center, Greenbelt, Md, USA. Y1 - 2011/11// PY - 2011 DA - Nov 2011 SP - 441 EP - 442 PB - Wiley Subscription Services, Inc., 1105 N Market St Wilmington DE 19801 VL - 92 IS - 48 SN - 0096-3941, 0096-3941 KW - Meteorological & Geoastrophysical Abstracts; Sustainability Science Abstracts KW - Historical account KW - Education KW - Best practices KW - Space exploration KW - Graduate schools KW - American Geophysical Union KW - Sustainability KW - Technology KW - M3 1010:Issues in Sustainable Development KW - M2 551.5:General (551.5) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1712570998?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=EOS%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Education+and+outreach+bring+NASA+heliophysics+to+the+public&rft.au=Barbier%2C+Beth&rft.aulast=Barbier&rft.aufirst=Beth&rft.date=2011-11-01&rft.volume=92&rft.issue=48&rft.spage=441&rft.isbn=&rft.btitle=&rft.title=EOS%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/10.1029%2F2011EO480002 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-09-01 N1 - Last updated - 2015-11-25 N1 - SubjectsTermNotLitGenreText - Space exploration; American Geophysical Union; Historical account; Education; Best practices; Graduate schools; Sustainability; Technology DO - http://dx.doi.org/10.1029/2011EO480002 ER - TY - JOUR T1 - Kepler-15b; a hot Jupiter enriched in heavy elements and the first Kepler Mission planet confirmed with the Hobby-Eberly Telescope AN - 1660633561; 2015-017774 AB - We report the discovery of Kepler-15b (KOI-128), a new transiting exoplanet detected by NASA's Kepler mission. The transit signal with a period of 4.94 days was detected in the quarter 1 (Q1) Kepler photometry. For the first time, we have used the High Resolution Spectrograph (HRS) at the Hobby-Eberly Telescope (HET) to determine the mass of a Kepler planet via precise radial velocity (RV) measurements. The 24 HET/HRS RVs and 6 additional measurements from the Fibre-fed Echelle Spectrograph spectrograph at the Nordic Optical Telescope reveal a Doppler signal with the same period and phase as the transit ephemeris. We used one HET/HRS spectrum of Kepler-15 taken without the iodine cell to determine accurate stellar parameters. The host star is a metal-rich ([Fe/H]=0.36+ or -0.07) G-type main-sequence star with T (sub eff) =5515+ or -124 K. The semi-amplitude K of the RV orbit is 78.7 (super +8.5) (sub -9.5) m s (super -1) , which yields a planet mass of 0.66+ or -0.1 M (sub Jup) . The planet has a radius of 0.96+ or -0.06 R (sub Jup) and a mean bulk density of 0.9+ or -0.2 g cm (super -3) . The radius of Kepler-15b is smaller than the majority of transiting planets with similar mass and irradiation level. This suggests that the planet is more enriched in heavy elements than most other transiting giant planets. For Kepler-15b we estimate a heavy element mass of 30-40 M (sub Earth) . Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The Astrophysical Journal. Supplement Series AU - Endl, Michael AU - MacQueen, Phillip J AU - Cochran, William D AU - Brugamyer, Erik J AU - Buchhave, Lars A AU - Rowe, Jason AU - Lucas, Phillip AU - Isaacson, Howard AU - Bryson, Steve AU - Howell, Steve B AU - Fortney, Jonathan J AU - Hansen, Terese AU - Borucki, William J AU - Caldwell, Douglas AU - Christiansen, Jessie L AU - Ciardi, David R AU - Demory, Brice-Olivier AU - Everett, Mark AU - Ford, Eric B AU - Haas, Michael R AU - Holman, Matthew J AU - Horch, Elliott AU - Jenkins, Jon M AU - Koch, David J AU - Lissauer, Jack J AU - Machalek, Pavel AU - Still, Martin AU - Welsh, William F AU - Sanderfer, Dwight T AU - Seader, Shawn E AU - Smith, Jeffrey C AU - Thompson, Susan E AU - Twicken, Joseph D Y1 - 2011/11/01/ PY - 2011 DA - 2011 Nov 01 EP - Paper no. 13 PB - University of Chicago Press for the American Astronomical Society, Chicago, IL VL - 197 IS - 1 SN - 0067-0049, 0067-0049 KW - Nordic Optical Telescope KW - bulk density KW - extrasolar planets KW - telescope methods KW - orbits KW - Hobby-Eberly Telescope KW - light curves KW - giant planets KW - mass KW - planets KW - hot Jupiters KW - photometry KW - heavy elements KW - stars KW - Kepler-15b KW - velocity KW - planetary transits KW - G-type stars KW - Fibre-fed Echelle Spectrograph KW - planetary systems KW - Kepler Mission KW - image analysis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1660633561?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Astrophysical+Journal.+Supplement+Series&rft.atitle=Kepler-15b%3B+a+hot+Jupiter+enriched+in+heavy+elements+and+the+first+Kepler+Mission+planet+confirmed+with+the+Hobby-Eberly+Telescope&rft.au=Endl%2C+Michael%3BMacQueen%2C+Phillip+J%3BCochran%2C+William+D%3BBrugamyer%2C+Erik+J%3BBuchhave%2C+Lars+A%3BRowe%2C+Jason%3BLucas%2C+Phillip%3BIsaacson%2C+Howard%3BBryson%2C+Steve%3BHowell%2C+Steve+B%3BFortney%2C+Jonathan+J%3BHansen%2C+Terese%3BBorucki%2C+William+J%3BCaldwell%2C+Douglas%3BChristiansen%2C+Jessie+L%3BCiardi%2C+David+R%3BDemory%2C+Brice-Olivier%3BEverett%2C+Mark%3BFord%2C+Eric+B%3BHaas%2C+Michael+R%3BHolman%2C+Matthew+J%3BHorch%2C+Elliott%3BJenkins%2C+Jon+M%3BKoch%2C+David+J%3BLissauer%2C+Jack+J%3BMachalek%2C+Pavel%3BStill%2C+Martin%3BWelsh%2C+William+F%3BSanderfer%2C+Dwight+T%3BSeader%2C+Shawn+E%3BSmith%2C+Jeffrey+C%3BThompson%2C+Susan+E%3BTwicken%2C+Joseph+D&rft.aulast=Endl&rft.aufirst=Michael&rft.date=2011-11-01&rft.volume=197&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+Astrophysical+Journal.+Supplement+Series&rft.issn=00670049&rft_id=info:doi/10.1088%2F0067-0049%2F197%2F1%2F13 L2 - http://iopscience.iop.org/0067-0049/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2015-01-01 N1 - Number of references - 43 N1 - PubXState - IL N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2015-04-16 N1 - SubjectsTermNotLitGenreText - bulk density; extrasolar planets; Fibre-fed Echelle Spectrograph; G-type stars; giant planets; heavy elements; Hobby-Eberly Telescope; hot Jupiters; image analysis; Kepler Mission; Kepler-15b; light curves; mass; Nordic Optical Telescope; orbits; photometry; planetary systems; planetary transits; planets; stars; telescope methods; velocity DO - http://dx.doi.org/10.1088/0067-0049/197/1/13 ER - TY - JOUR T1 - Properties of an Earth-like planet orbiting a Sun-like star; Earth observed by the EPOXI Mission AN - 1529793279; 2014-034496 AB - NASA's EPOXI mission observed the disc-integrated Earth and Moon to test techniques for reconnoitering extrasolar terrestrial planets, using the Deep Impact flyby spacecraft to observe Earth at the beginning and end of Northern Hemisphere spring, 2008, from a range of approximately 1/6 to 1/3 AU. These observations furnish high-precision and high-cadence empirical photometry and spectroscopy of Earth, suitable as "ground truth" for numerically simulating realistic observational scenarios for an Earth-like exoplanet with finite signal-to-noise ratio. Earth was observed at near-equatorial sub-spacecraft latitude on 18-19 March, 28-29 May, and 4-5 June (UT), in the range of 372-4540 nm wavelength with low visible resolving power (lambda /Delta lambda =5-13) and moderate IR resolving power (lambda /Delta lambda =215-730). Spectrophotometry in seven filters yields light curves at approximately 372-948 nm filter-averaged wavelength, modulated by Earth's rotation with peak-to-peak amplitude of < or =20%. The spatially resolved Sun glint is a minor contributor to disc-integrated reflectance. Spectroscopy at 1100-4540 nm reveals gaseous water and carbon dioxide, with minor features of molecular oxygen, methane, and nitrous oxide. One-day changes in global cloud cover resulted in differences between the light curve beginning and end of < or =5%. The light curve of a lunar transit of Earth on 29 May is color-dependent due to the Moon's red spectrum partially occulting Earth's relatively blue spectrum. The "vegetation red edge" spectral contrast observed between two long-wavelength visible/near-IR bands is ambiguous, not clearly distinguishing between the verdant Earth diluted by cloud cover versus the desolate mineral regolith of the Moon. Spectrophotometry in at least one other comparison band at short wavelength is required to distinguish between Earth-like and Moon-like surfaces in reconnaissance observations. However, measurements at 850 nm alone, the high-reflectance side of the red edge, could be sufficient to establish periodicity in the light curve and deduce Earth's diurnal period and the existence of fixed surface units. JF - Astrobiology AU - Livengood, Timothy A AU - Deming, L Drake AU - A'Hearn, Michael F AU - Charbonneau, David AU - Hewagama, Tilak AU - Lisse, Carey M AU - McFadden, Lucy A AU - Meadows, Victoria S AU - Robinson, Tyler D AU - Seager, Sara AU - Wellnitz, Dennis D Y1 - 2011/11// PY - 2011 DA - November 2011 SP - 907 EP - 930 PB - Mary Ann Liebert, Larchmont, NY VL - 11 IS - 9 SN - 1531-1074, 1531-1074 KW - optical spectra KW - data processing KW - astrobiology KW - calibration KW - simulation KW - infrared spectra KW - photometry KW - ground truth KW - spectra KW - orbital observations KW - diurnal variations KW - Earth KW - numerical models KW - extrasolar planets KW - atmosphere KW - biomarkers KW - light curves KW - terrestrial planets KW - planets KW - Earth-Moon couple KW - detection KW - signal-to-noise ratio KW - reflectance KW - remote sensing KW - EPOXI Mission KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529793279?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrobiology&rft.atitle=Properties+of+an+Earth-like+planet+orbiting+a+Sun-like+star%3B+Earth+observed+by+the+EPOXI+Mission&rft.au=Livengood%2C+Timothy+A%3BDeming%2C+L+Drake%3BA%27Hearn%2C+Michael+F%3BCharbonneau%2C+David%3BHewagama%2C+Tilak%3BLisse%2C+Carey+M%3BMcFadden%2C+Lucy+A%3BMeadows%2C+Victoria+S%3BRobinson%2C+Tyler+D%3BSeager%2C+Sara%3BWellnitz%2C+Dennis+D&rft.aulast=Livengood&rft.aufirst=Timothy&rft.date=2011-11-01&rft.volume=11&rft.issue=9&rft.spage=907&rft.isbn=&rft.btitle=&rft.title=Astrobiology&rft.issn=15311074&rft_id=info:doi/10.1089%2Fast.2011.0614 L2 - http://www.liebertpub.com/publication.aspx?pub_id=99 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 48 N1 - PubXState - NY N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2014-05-29 N1 - SubjectsTermNotLitGenreText - astrobiology; atmosphere; biomarkers; calibration; data processing; detection; diurnal variations; Earth; Earth-Moon couple; EPOXI Mission; extrasolar planets; ground truth; infrared spectra; light curves; numerical models; optical spectra; orbital observations; photometry; planets; reflectance; remote sensing; signal-to-noise ratio; simulation; spectra; terrestrial planets DO - http://dx.doi.org/10.1089/ast.2011.0614 ER - TY - JOUR T1 - Prebiotic significance of extraterrestrial ice photochemical; detection of hydantoin in organic residues AN - 1529793260; 2014-034491 AB - The delivery of extraterrestrial organic materials to primitive Earth from meteorites or micrometeorites has long been postulated to be one of the origins of the prebiotic molecules involved in the subsequent apparition of life. Here, we report on experiments in which vacuum UV photo-irradiation of interstellar/circumstellar ice analogues containing H (sub 2) O, CH (sub 3) OH, and NH (sub 3) led to the production of several molecules of prebiotic interest. These were recovered at room temperature in the semi-refractory, water-soluble residues after evaporation of the ice. In particular, we detected small quantities of hydantoin (2,4-imidazolidinedione), a species suspected to play an important role in the formation of poly- and oligopeptides. In addition, hydantoin is known to form under extraterrestrial, abiotic conditions, since it has been detected, along with various other derivatives, in the soluble part of organic matter of primitive carbonaceous meteorites. This result, together with other related experiments reported recently, points to the potential importance of the photochemistry of interstellar "dirty" ices in the formation of organics in Solar System materials. Such molecules could then have been delivered to the surface of primitive Earth, as well as other telluric (exo-) planets, to help trigger first prebiotic reactions with the capacity to lead to some form of primitive biomolecular activity. JF - Astrobiology AU - de Marcellus, Pierre AU - Bertrand, Marylene AU - Nuevo, Michel AU - Westall, Frances AU - Le Sergeant d'Hendecourt, Louis Y1 - 2011/11// PY - 2011 DA - November 2011 SP - 847 EP - 854 PB - Mary Ann Liebert, Larchmont, NY VL - 11 IS - 9 SN - 1531-1074, 1531-1074 KW - ammonium KW - irradiation KW - gas chromatograms KW - mass spectra KW - astrobiology KW - life origin KW - laboratory studies KW - electromagnetic radiation KW - ice KW - alcohols KW - spectra KW - water KW - experimental studies KW - hydantoin KW - biochemistry KW - photochemistry KW - interstellar matter KW - ultraviolet radiation KW - methanol KW - organic compounds KW - evaporation KW - detection KW - chromatograms KW - natural analogs KW - 04:Extraterrestrial geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529793260?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrobiology&rft.atitle=Prebiotic+significance+of+extraterrestrial+ice+photochemical%3B+detection+of+hydantoin+in+organic+residues&rft.au=de+Marcellus%2C+Pierre%3BBertrand%2C+Marylene%3BNuevo%2C+Michel%3BWestall%2C+Frances%3BLe+Sergeant+d%27Hendecourt%2C+Louis&rft.aulast=de+Marcellus&rft.aufirst=Pierre&rft.date=2011-11-01&rft.volume=11&rft.issue=9&rft.spage=847&rft.isbn=&rft.btitle=&rft.title=Astrobiology&rft.issn=15311074&rft_id=info:doi/10.1089%2Fast.2011.0677 L2 - http://www.liebertpub.com/publication.aspx?pub_id=99 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 49 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2014-05-29 N1 - SubjectsTermNotLitGenreText - alcohols; ammonium; astrobiology; biochemistry; chromatograms; detection; electromagnetic radiation; evaporation; experimental studies; gas chromatograms; hydantoin; ice; interstellar matter; irradiation; laboratory studies; life origin; mass spectra; methanol; natural analogs; organic compounds; photochemistry; spectra; ultraviolet radiation; water DO - http://dx.doi.org/10.1089/ast.2011.0677 ER - TY - JOUR T1 - A Spitzer survey for dust in Type IIn supernovae AN - 1464882361; 2013-094572 AB - Recent observations suggest that Type IIn supernovae (SNe IIn) may exhibit late-time (>100 days) infrared (IR) emission from warm dust more than other types of core-collapse SNe. Mid-IR observations, which span the peak of the thermal spectral energy distribution, provide useful constraints on the properties of the dust and, ultimately, the circumstellar environment, explosion mechanism, and progenitor system. Due to the low SN IIn rate (<10% of all core-collapse SNe), few IR observations exist for this subclass. The handful of isolated studies, however, show late-time IR emission from warm dust that, in some cases, extends for five or six years post-discovery. While previous Spitzer/IRAC surveys have searched for dust in SNe, none have targeted the Type IIn subclass. This paper presents results from a warm Spitzer/IRAC survey of the positions of all 68 known SNe IIn within a distance of 250 Mpc between 1999 and 2008 that have remained unobserved by Spitzer more than 100 days post-discovery. The detection of late-time emission from 10 targets ( approximately 15%) nearly doubles the database of existing mid-IR observations of SNe IIn. Although optical spectra show evidence for new dust formation in some cases, the data show that in most cases the likely origin of the mid-IR emission is pre-existing dust, which is continuously heated by optical emission generated by ongoing circumstellar interaction between the forward shock and circumstellar medium. Furthermore, an emerging trend suggests that these SNe decline at approximately 1000-2000 days post-discovery once the forward shock overruns the dust shell. The mass-loss rates associated with these dust shells are consistent with luminous blue variable progenitors. Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The = Astrophysical Journal AU - Fox, Ori D AU - Chevalier, Roger A AU - Skrutskie, Michael F AU - Soderberg, Alicia M AU - Filippenko, Alexei V AU - Ganeshalingam, Mohan AU - Silverman, Jeffrey M AU - Smith, Nathan AU - Steele, Thea N Y1 - 2011/11/01/ PY - 2011 DA - 2011 Nov 01 EP - paper 7 PB - University of Chicago Press for the American Astronomical Society, Chicago, IL VL - 741 IS - 1 SN - 0004-637X, 0004-637X KW - circumstellar medium KW - telescope methods KW - Spitzer Space Telescope KW - explosions KW - supernovas KW - optical spectra KW - infrared spectra KW - emission spectra KW - cosmic dust KW - stars KW - surveys KW - spectra KW - Type IIn supernovas KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1464882361?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+%3D+Astrophysical+Journal&rft.atitle=A+Spitzer+survey+for+dust+in+Type+IIn+supernovae&rft.au=Fox%2C+Ori+D%3BChevalier%2C+Roger+A%3BSkrutskie%2C+Michael+F%3BSoderberg%2C+Alicia+M%3BFilippenko%2C+Alexei+V%3BGaneshalingam%2C+Mohan%3BSilverman%2C+Jeffrey+M%3BSmith%2C+Nathan%3BSteele%2C+Thea+N&rft.aulast=Fox&rft.aufirst=Ori&rft.date=2011-11-01&rft.volume=741&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+%3D+Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F741%2F1%2F7 L2 - http://iopscience.iop.org/0004-637X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2013-01-01 N1 - PubXState - IL N1 - SuppNotes - Based on Publisher-supplied data N1 - Last updated - 2013-12-05 N1 - SubjectsTermNotLitGenreText - circumstellar medium; cosmic dust; emission spectra; explosions; infrared spectra; optical spectra; spectra; Spitzer Space Telescope; stars; supernovas; surveys; telescope methods; Type IIn supernovas DO - http://dx.doi.org/10.1088/0004-637X/741/1/7 ER - TY - CPAPER T1 - Combining epidemiologic information across space agencies T2 - 139th American Public Health Association Annual Meeting and Exposition (APHA 2011) AN - 1313023086; 6051868 JF - 139th American Public Health Association Annual Meeting and Exposition (APHA 2011) AU - Minard, Charles AU - Wear, Mary AU - Clark, April AU - Mason, Sara AU - Van Baalen, Mary Y1 - 2011/10/29/ PY - 2011 DA - 2011 Oct 29 KW - Public health KW - Nutrition KW - Sports KW - Fitness UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313023086?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=139th+American+Public+Health+Association+Annual+Meeting+and+Exposition+%28APHA+2011%29&rft.atitle=Combining+epidemiologic+information+across+space+agencies&rft.au=Minard%2C+Charles%3BWear%2C+Mary%3BClark%2C+April%3BMason%2C+Sara%3BVan+Baalen%2C+Mary&rft.aulast=Minard&rft.aufirst=Charles&rft.date=2011-10-29&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=139th+American+Public+Health+Association+Annual+Meeting+and+Exposition+%28APHA+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://apha.confex.com/apha/139am/webprogram/meeting.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - A Discussion of the NASA's Future Plans for using Remote Sensing in Public Health Research T2 - 139th American Public Health Association Annual Meeting and Exposition (APHA 2011) AN - 1313010840; 6049338 JF - 139th American Public Health Association Annual Meeting and Exposition (APHA 2011) AU - Haynes, John AU - Estes, Sue Y1 - 2011/10/29/ PY - 2011 DA - 2011 Oct 29 KW - Public health KW - Remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313010840?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=139th+American+Public+Health+Association+Annual+Meeting+and+Exposition+%28APHA+2011%29&rft.atitle=A+Discussion+of+the+NASA%27s+Future+Plans+for+using+Remote+Sensing+in+Public+Health+Research&rft.au=Haynes%2C+John%3BEstes%2C+Sue&rft.aulast=Haynes&rft.aufirst=John&rft.date=2011-10-29&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=139th+American+Public+Health+Association+Annual+Meeting+and+Exposition+%28APHA+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://apha.confex.com/apha/139am/webprogram/meeting.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Use of Remote Sensing/Geographical Information Systems (RS/GIS) to identify the distributional limits of soil-transmitted helminths (STHs) and their association to prevalence of intestinal infection in school-age children in four rural communities in Boaco, Nicaragua T2 - 139th American Public Health Association Annual Meeting and Exposition (APHA 2011) AN - 1312999105; 6049339 JF - 139th American Public Health Association Annual Meeting and Exposition (APHA 2011) AU - Moreno - Madrinan, Max AU - Al-Hamdan, Mohammad AU - Parajon, David AU - Rickman, Douglas AU - Luvall, Jeffrey AU - Parajon, Laura AU - Martinez, Roberto AU - Estes, Sue Y1 - 2011/10/29/ PY - 2011 DA - 2011 Oct 29 KW - Nicaragua KW - Geographic information systems KW - Rural areas KW - infection KW - Remote sensing KW - Children KW - helminths KW - Infection KW - Intestine KW - Information systems KW - Geographical distribution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312999105?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=139th+American+Public+Health+Association+Annual+Meeting+and+Exposition+%28APHA+2011%29&rft.atitle=Use+of+Remote+Sensing%2FGeographical+Information+Systems+%28RS%2FGIS%29+to+identify+the+distributional+limits+of+soil-transmitted+helminths+%28STHs%29+and+their+association+to+prevalence+of+intestinal+infection+in+school-age+children+in+four+rural+communities+in+Boaco%2C+Nicaragua&rft.au=Moreno+-+Madrinan%2C+Max%3BAl-Hamdan%2C+Mohammad%3BParajon%2C+David%3BRickman%2C+Douglas%3BLuvall%2C+Jeffrey%3BParajon%2C+Laura%3BMartinez%2C+Roberto%3BEstes%2C+Sue&rft.aulast=Moreno+-+Madrinan&rft.aufirst=Max&rft.date=2011-10-29&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=139th+American+Public+Health+Association+Annual+Meeting+and+Exposition+%28APHA+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://apha.confex.com/apha/139am/webprogram/meeting.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - NEWS T1 - 600 Mysteries in the Night Sky AN - 900586075 JF - UPI Space Daily AU - Dauna Coulter for NASA Science News Y1 - 2011/10/27/ PY - 2011 DA - 2011 Oct 27 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/900586075?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=600+Mysteries+in+the+Night+Sky&rft.au=Dauna+Coulter+for+NASA+Science+News&rft.aulast=Dauna+Coulter+for+NASA+Science+News&rft.aufirst=&rft.date=2011-10-27&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-10-27 ER - TY - CPAPER T1 - Insect residue contamination on wing leading edge surfaces: A materials investigation for mitigation T2 - 63rd Southeast Regional Meeting of the American Chemical Society (SERMACS 2011) AN - 1312962779; 6040896 JF - 63rd Southeast Regional Meeting of the American Chemical Society (SERMACS 2011) AU - Siochi, Emilie AU - Lorenzi, Tyler AU - Wohl, Christopher AU - Penner, Ronald AU - Smith, Joseph Y1 - 2011/10/26/ PY - 2011 DA - 2011 Oct 26 KW - Residues KW - mitigation KW - insects KW - Wings KW - Contamination KW - Aquatic insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312962779?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=63rd+Southeast+Regional+Meeting+of+the+American+Chemical+Society+%28SERMACS+2011%29&rft.atitle=Insect+residue+contamination+on+wing+leading+edge+surfaces%3A+A+materials+investigation+for+mitigation&rft.au=Siochi%2C+Emilie%3BLorenzi%2C+Tyler%3BWohl%2C+Christopher%3BPenner%2C+Ronald%3BSmith%2C+Joseph&rft.aulast=Siochi&rft.aufirst=Emilie&rft.date=2011-10-26&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=63rd+Southeast+Regional+Meeting+of+the+American+Chemical+Society+%28SERMACS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://abstracts.acs.org/chem/sermacs/program/divisionindex.php?act=session&val=102602&prog=102602 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Copoly(imide oxetane)s for particle adhesion mitigation T2 - 63rd Southeast Regional Meeting of the American Chemical Society (SERMACS 2011) AN - 1312962741; 6040895 JF - 63rd Southeast Regional Meeting of the American Chemical Society (SERMACS 2011) AU - Cooper, Leanna AU - Applin, Samantha AU - Wohl, Christopher AU - Connell, John Y1 - 2011/10/26/ PY - 2011 DA - 2011 Oct 26 KW - Particulates KW - mitigation KW - adhesion KW - Adhesion UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312962741?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=63rd+Southeast+Regional+Meeting+of+the+American+Chemical+Society+%28SERMACS+2011%29&rft.atitle=Copoly%28imide+oxetane%29s+for+particle+adhesion+mitigation&rft.au=Cooper%2C+Leanna%3BApplin%2C+Samantha%3BWohl%2C+Christopher%3BConnell%2C+John&rft.aulast=Cooper&rft.aufirst=Leanna&rft.date=2011-10-26&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=63rd+Southeast+Regional+Meeting+of+the+American+Chemical+Society+%28SERMACS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://abstracts.acs.org/chem/sermacs/program/divisionindex.php?act=session&val=102602&prog=102602 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Overview of the Development of Filled Polymers with High Thermal Conductivity for Advanced Spacesuits T2 - 63rd Southeast Regional Meeting of the American Chemical Society (SERMACS 2011) AN - 1312962690; 6040894 JF - 63rd Southeast Regional Meeting of the American Chemical Society (SERMACS 2011) AU - Connell, John Y1 - 2011/10/26/ PY - 2011 DA - 2011 Oct 26 KW - thermal conductivity KW - Polymers KW - Reviews KW - Thermal conductivity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312962690?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=63rd+Southeast+Regional+Meeting+of+the+American+Chemical+Society+%28SERMACS+2011%29&rft.atitle=Overview+of+the+Development+of+Filled+Polymers+with+High+Thermal+Conductivity+for+Advanced+Spacesuits&rft.au=Connell%2C+John&rft.aulast=Connell&rft.aufirst=John&rft.date=2011-10-26&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=63rd+Southeast+Regional+Meeting+of+the+American+Chemical+Society+%28SERMACS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://abstracts.acs.org/chem/sermacs/program/divisionindex.php?act=session&val=102602&prog=102602 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Polymer and nano-material research in the Polymers Branch at NASA Glenn Research Center T2 - 63rd Southeast Regional Meeting of the American Chemical Society (SERMACS 2011) AN - 1312962658; 6040893 JF - 63rd Southeast Regional Meeting of the American Chemical Society (SERMACS 2011) AU - Miller, Sandi AU - Lebron-Colon, Marisabel AU - Williams, Tiffany AU - Meador, Michael Y1 - 2011/10/26/ PY - 2011 DA - 2011 Oct 26 KW - Polymers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312962658?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=63rd+Southeast+Regional+Meeting+of+the+American+Chemical+Society+%28SERMACS+2011%29&rft.atitle=Polymer+and+nano-material+research+in+the+Polymers+Branch+at+NASA+Glenn+Research+Center&rft.au=Miller%2C+Sandi%3BLebron-Colon%2C+Marisabel%3BWilliams%2C+Tiffany%3BMeador%2C+Michael&rft.aulast=Miller&rft.aufirst=Sandi&rft.date=2011-10-26&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=63rd+Southeast+Regional+Meeting+of+the+American+Chemical+Society+%28SERMACS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://abstracts.acs.org/chem/sermacs/program/divisionindex.php?act=session&val=102602&prog=102602 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Validation of a Computational Model for a Self-Healing Polymer T2 - 63rd Southeast Regional Meeting of the American Chemical Society (SERMACS 2011) AN - 1312948923; 6040664 JF - 63rd Southeast Regional Meeting of the American Chemical Society (SERMACS 2011) AU - Hadley, Kevin AU - Gordon, Keith AU - Siochi, Emilie AU - Wise, Kris Y1 - 2011/10/26/ PY - 2011 DA - 2011 Oct 26 KW - Polymers KW - Mathematical models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312948923?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=63rd+Southeast+Regional+Meeting+of+the+American+Chemical+Society+%28SERMACS+2011%29&rft.atitle=Validation+of+a+Computational+Model+for+a+Self-Healing+Polymer&rft.au=Hadley%2C+Kevin%3BGordon%2C+Keith%3BSiochi%2C+Emilie%3BWise%2C+Kris&rft.aulast=Hadley&rft.aufirst=Kevin&rft.date=2011-10-26&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=63rd+Southeast+Regional+Meeting+of+the+American+Chemical+Society+%28SERMACS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://abstracts.acs.org/chem/sermacs/program/divisionindex.php?act=session&val=102602&prog=102602 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Fluorophore-doped polystyrene microparticle synthesis T2 - 63rd Southeast Regional Meeting of the American Chemical Society (SERMACS 2011) AN - 1312928386; 6040898 JF - 63rd Southeast Regional Meeting of the American Chemical Society (SERMACS 2011) AU - Applin, Samantha AU - Tiemsin, Pacita AU - Wohl, Christopher AU - Connell, John Y1 - 2011/10/26/ PY - 2011 DA - 2011 Oct 26 KW - polystyrene KW - microparticles UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312928386?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=63rd+Southeast+Regional+Meeting+of+the+American+Chemical+Society+%28SERMACS+2011%29&rft.atitle=Fluorophore-doped+polystyrene+microparticle+synthesis&rft.au=Applin%2C+Samantha%3BTiemsin%2C+Pacita%3BWohl%2C+Christopher%3BConnell%2C+John&rft.aulast=Applin&rft.aufirst=Samantha&rft.date=2011-10-26&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=63rd+Southeast+Regional+Meeting+of+the+American+Chemical+Society+%28SERMACS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://abstracts.acs.org/chem/sermacs/program/divisionindex.php?act=session&val=102602&prog=102602 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - AC Electric Field Activated Shape Memory Polymer Nanocomposite T2 - 63rd Southeast Regional Meeting of the American Chemical Society (SERMACS 2011) AN - 1312927634; 6040897 JF - 63rd Southeast Regional Meeting of the American Chemical Society (SERMACS 2011) AU - Kang, Jin AU - Siochi, Emilie AU - Penner, Ronald AU - Turner, Travis Y1 - 2011/10/26/ PY - 2011 DA - 2011 Oct 26 KW - Electric fields KW - Polymers KW - Adenylate cyclase KW - Memory UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312927634?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=63rd+Southeast+Regional+Meeting+of+the+American+Chemical+Society+%28SERMACS+2011%29&rft.atitle=AC+Electric+Field+Activated+Shape+Memory+Polymer+Nanocomposite&rft.au=Kang%2C+Jin%3BSiochi%2C+Emilie%3BPenner%2C+Ronald%3BTurner%2C+Travis&rft.aulast=Kang&rft.aufirst=Jin&rft.date=2011-10-26&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=63rd+Southeast+Regional+Meeting+of+the+American+Chemical+Society+%28SERMACS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://abstracts.acs.org/chem/sermacs/program/divisionindex.php?act=session&val=102602&prog=102602 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - The Spitzer ice legacy; ice evolution from cores to protostars AN - 1464885477; 2013-094569 AB - Ices regulate much of the chemistry during star formation and account for up to 80% of the available oxygen and carbon. In this paper, we use the Spitzer c2d Legacy ice survey, complimented with data sets on ices in cloud cores and high-mass protostars, to determine standard ice abundances and to present a coherent picture of the evolution of ices during low- and high-mass star formation. The median ice composition H (sub 2) O:CO:CO (sub 2) :CH (sub 3) OH:NH (sub 3) :CH (sub 4) :XCN is 100:29:29:3:5:5:0.3 and 100:13:13:4:5:2:0.6 toward low- and high-mass protostars, respectively, and 100:31:38:4:-:-:- in cloud cores. In the low-mass sample, the ice abundances with respect to H (sub 2) O of CH (sub 4) , NH (sub 3) , and the component of CO (sub 2) mixed with H (sub 2) O typically vary by <25%, indicative of co-formation with H (sub 2) O. In contrast, some CO and CO (sub 2) ice components, XCN, and CH (sub 3) OH vary by factors 2-10 between the lower and upper quartile. The XCN band correlates with CO, consistent with its OCN (super -) identification. The origin(s) of the different levels of ice abundance variations are constrained by comparing ice inventories toward different types of protostars and background stars, through ice mapping, analysis of cloud-to-cloud variations, and ice (anti-)correlations. Based on the analysis, the first ice formation phase is driven by hydrogenation of atoms, which results in an H (sub 2) O-dominated ice. At later prestellar times, CO freezes out and variations in CO freezeout levels and the subsequent CO-based chemistry can explain most of the observed ice abundance variations. The last important ice evolution stage is thermal and UV processing around protostars, resulting in CO desorption, ice segregation, and the formation of complex organic molecules. The distribution of cometary ice abundances is consistent with the idea that most cometary ices have a protostellar origin. Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The = Astrophysical Journal AU - Oberg, Karin I AU - Boogert, A C Adwin AU - Pontoppidan, Klaus M AU - van den Broek, Saskia AU - van Dishoeck, Ewine F AU - Bottinelli, Sandrine AU - Blake, Geoffrey A AU - Evans, Neal J, II Y1 - 2011/10/20/ PY - 2011 DA - 2011 Oct 20 EP - paper 109 PB - University of Chicago Press for the American Astronomical Society, Chicago, IL VL - 740 IS - 2 SN - 0004-637X, 0004-637X KW - ammonium KW - protostars KW - oxygen KW - aliphatic hydrocarbons KW - freezing KW - carbon dioxide KW - ice KW - carbon KW - alcohols KW - molecular dynamics KW - circumstellar matter KW - interstellar dust KW - geochemistry KW - water KW - clouds KW - methane KW - telescope methods KW - Spitzer Space Telescope KW - cosmochemistry KW - alkanes KW - methanol KW - carbon monoxide KW - organic compounds KW - cosmic dust KW - comets KW - stars KW - hydrocarbons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1464885477?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+%3D+Astrophysical+Journal&rft.atitle=The+Spitzer+ice+legacy%3B+ice+evolution+from+cores+to+protostars&rft.au=Oberg%2C+Karin+I%3BBoogert%2C+A+C+Adwin%3BPontoppidan%2C+Klaus+M%3Bvan+den+Broek%2C+Saskia%3Bvan+Dishoeck%2C+Ewine+F%3BBottinelli%2C+Sandrine%3BBlake%2C+Geoffrey+A%3BEvans%2C+Neal+J%2C+II&rft.aulast=Oberg&rft.aufirst=Karin&rft.date=2011-10-20&rft.volume=740&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+%3D+Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F740%2F2%2F109 L2 - http://iopscience.iop.org/0004-637X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2013-01-01 N1 - PubXState - IL N1 - SuppNotes - Based on Publisher-supplied data N1 - Last updated - 2013-12-05 N1 - SubjectsTermNotLitGenreText - alcohols; aliphatic hydrocarbons; alkanes; ammonium; carbon; carbon dioxide; carbon monoxide; circumstellar matter; clouds; comets; cosmic dust; cosmochemistry; freezing; geochemistry; hydrocarbons; ice; interstellar dust; methane; methanol; molecular dynamics; organic compounds; oxygen; protostars; Spitzer Space Telescope; stars; telescope methods; water DO - http://dx.doi.org/10.1088/0004-637X/740/2/109 ER - TY - JOUR T1 - Gas and dust in a submillimeter galaxy at z=4.24 from the Herschel atlas AN - 1464884024; 2013-094567 AB - We report ground-based follow-up observations of the exceptional source, ID 141, one of the brightest sources detected so far in the Herschel Astrophysical Terahertz Large Area Survey cosmological survey. ID 141 was observed using the IRAM 30 m telescope and Plateau de Bure interferometer (PdBI), the Submillimeter Array, and the Atacama Pathfinder xperiment submillimeter telescope to measure the dust continuum and emission lines of the main isotope of carbon monoxide and carbon ([C I] and [C II]). The detection of strong CO emission lines with the PdBI confirms that ID 141 is at high redshift (z=4.243 + or - 0.001). The strength of the continuum and emission lines suggests that ID 141 is gravitationally lensed. The width (Delta V (sub FWHM) approximately 800 km s (super -1) ) and asymmetric profiles of the CO and carbon lines indicate orbital motion in a disk or a merger. The properties derived for ID 141 are compatible with an ultraluminous (L (sub FIR) approximately (8.5 + or - 0.3)X10 (super 13) mu (super -1) (sub L) L (sub []) , where mu (sub L) is the amplification factor), dense (n nearly equal 10 (super 4) cm (super -3) ), and warm (T (sub kin) nearly equal 40 K) starburst galaxy, with an estimated star formation rate of (0.7-1.7)X10 (super 4) mu (super -1) (sub L) M (sub []) yr (super -1) . The carbon emission lines indicate a dense (n nearly equal 10 (super 4) cm (super -3) ) photon-dominated region, illuminated by a far-UV radiation field a few thousand times more intense than that in our Galaxy. In conclusion, the physical properties of the high-z galaxy ID 141 are remarkably similar to those of local ultraluminous infrared galaxies. Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The = Astrophysical Journal AU - Cox, P AU - Krips, M AU - Neri, R AU - Omont, A AU - Guesten, R AU - Menten, K M AU - Wyrowski, F AU - Weiss, A AU - Beelen, A AU - Gurwell, M A AU - Dannerbauer, H AU - Ivison, R J AU - Negrello, M AU - Aretxaga, I AU - Hughes, D H AU - Auld, R AU - Baes, M AU - Blundell, R AU - Buttiglione, S AU - Cava, A AU - Cooray, A AU - Dariush, A AU - Dunne, L AU - Dye, S AU - Eales, S A AU - Frayer, D AU - Fritz, J AU - Gavazzi, R AU - Hopwood, R AU - Ibar, E AU - Jarvis, M AU - Maddox, S AU - Michalowski, M AU - Pascale, E AU - Pohlen, M AU - Rigby, E AU - Smith, D J B AU - Swinbank, A M AU - Temi, P AU - Valtchanov, I AU - van der Werf, P AU - de Zotti, G Y1 - 2011/10/20/ PY - 2011 DA - 2011 Oct 20 EP - paper 63 PB - University of Chicago Press for the American Astronomical Society, Chicago, IL VL - 740 IS - 2 SN - 0004-637X, 0004-637X KW - galaxies KW - telescope methods KW - Herschel Astrophysical Terahertz Large Area Survey KW - orbits KW - observations KW - gases KW - emission spectra KW - motions KW - carbon monoxide KW - physical properties KW - cosmic dust KW - stars KW - carbon KW - surveys KW - spectra KW - interstellar dust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1464884024?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+%3D+Astrophysical+Journal&rft.atitle=Gas+and+dust+in+a+submillimeter+galaxy+at+z%3D4.24+from+the+Herschel+atlas&rft.au=Cox%2C+P%3BKrips%2C+M%3BNeri%2C+R%3BOmont%2C+A%3BGuesten%2C+R%3BMenten%2C+K+M%3BWyrowski%2C+F%3BWeiss%2C+A%3BBeelen%2C+A%3BGurwell%2C+M+A%3BDannerbauer%2C+H%3BIvison%2C+R+J%3BNegrello%2C+M%3BAretxaga%2C+I%3BHughes%2C+D+H%3BAuld%2C+R%3BBaes%2C+M%3BBlundell%2C+R%3BButtiglione%2C+S%3BCava%2C+A%3BCooray%2C+A%3BDariush%2C+A%3BDunne%2C+L%3BDye%2C+S%3BEales%2C+S+A%3BFrayer%2C+D%3BFritz%2C+J%3BGavazzi%2C+R%3BHopwood%2C+R%3BIbar%2C+E%3BJarvis%2C+M%3BMaddox%2C+S%3BMichalowski%2C+M%3BPascale%2C+E%3BPohlen%2C+M%3BRigby%2C+E%3BSmith%2C+D+J+B%3BSwinbank%2C+A+M%3BTemi%2C+P%3BValtchanov%2C+I%3Bvan+der+Werf%2C+P%3Bde+Zotti%2C+G&rft.aulast=Cox&rft.aufirst=P&rft.date=2011-10-20&rft.volume=740&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+%3D+Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F740%2F2%2F63 L2 - http://iopscience.iop.org/0004-637X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2013-01-01 N1 - PubXState - IL N1 - SuppNotes - Based on Publisher-supplied data N1 - Last updated - 2013-12-05 N1 - SubjectsTermNotLitGenreText - carbon; carbon monoxide; cosmic dust; emission spectra; galaxies; gases; Herschel Astrophysical Terahertz Large Area Survey; interstellar dust; motions; observations; orbits; physical properties; spectra; stars; surveys; telescope methods DO - http://dx.doi.org/10.1088/0004-637X/740/2/63 ER - TY - JOUR T1 - AERONET-based surface reflectance validation network (ASRVN) data evaluation: Case study for railroad valley calibration site AN - 1777159174; 15552849 AB - The AERONET-based Surface Reflectance Validation Network (ASRVN) is an operational processing system developed for validation of satellite derived surface reflectance products at regional and global scales. The ASRVN receives 5050km2 subsets of MODIS data centered at AERONET sites along with AERONET aerosol and water vapor data, and performs an atmospheric correction. The ASRVN produces surface bidirectional reflectance factor (BRF), albedo, parameters of the Ross-Thick Li-Sparse (RTLS) BRF model, as well as Hemispherical-Directional Reflectance Factor (HDRF), which is required for comparison with the ground-based measurements. This paper presents a comparison of ASRVN HDRF with the ground-based HDRF measurements collected during 2001-2008 over a bright calibration Railroad Valley, Nevada site as part of the MODIS land validation program. The ground measurements were conducted by the Remote Sensing Group (RSG) at the University of Arizona using an ASD spectrometer. The study reveals a good agreement between ASRVN and RSG HDRF for both MODIS Terra and Aqua with rmse~0.01-0.025 in the 500m MODIS land bands B1-B7. Obtained rmse is below uncertainties due to the spatial and seasonal variability of the bright calibration 1km2 area. While two MODIS instruments have a similar rmse in the visible bands, MODIS Aqua has a better agreement (lower rmse) with the ground data than MODIS Terra at wavelengths 0.87-2.1 mu m. An independent overall good agreement of two MODIS instruments with the ground data indicates that the relative calibration of MODIS Terra and Aqua at medium-to-bright reflectance levels for the stated time period is significantly better than uncertainties of the ASRVN and ground data. JF - Remote Sensing of Environment AU - Wang, Y AU - Czapla-Myers, J AU - Lyapustin, A AU - Thome, K AU - Dutton, E G Y1 - 2011/10/17/ PY - 2011 DA - 2011 Oct 17 SP - 2710 EP - 2717 PB - Elsevier B.V., Box 882 New York NY 10159 United States VL - 115 IS - 10 SN - 0034-4257, 0034-4257 KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE); Aerospace & High Technology Database (AH) KW - AERONET-based Surface Reflectance Validation Network KW - Atmospheric Correction KW - BRF KW - HDRF KW - Surface Reflectance KW - Surface Albedo KW - AERONET KW - Validation KW - MODIS KW - Reflectance KW - Mathematical models KW - Reflectivity KW - Grounds KW - Networks KW - Calibration KW - Valleys UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777159174?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remote+Sensing+of+Environment&rft.atitle=AERONET-based+surface+reflectance+validation+network+%28ASRVN%29+data+evaluation%3A+Case+study+for+railroad+valley+calibration+site&rft.au=Wang%2C+Y%3BCzapla-Myers%2C+J%3BLyapustin%2C+A%3BThome%2C+K%3BDutton%2C+E+G&rft.aulast=Wang&rft.aufirst=Y&rft.date=2011-10-17&rft.volume=115&rft.issue=10&rft.spage=2710&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&rft_id=info:doi/10.1016%2Fj.rse.2011.06.011 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-02-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.rse.2011.06.011 ER - TY - JOUR T1 - Detection of ricin using a carbon nanofiber based biosensor AN - 907178755; 15618642 AB - We report ricin detection using antibody and aptamer probes immobilized on a nanoelectrode array (NEA) consisting of vertically aligned carbon nanofibers (VACNFs). These biosensor chips are fabricated on a wafer scale using steps common in integrated circuit manufacturing. Electrochemical impedance spectroscopy is used to characterize the detection event and the results indicate that the electron transfer resistance changes significantly after the ricin protein binds to the probe. Further confirmation is obtained from evaluation of the electrode surface by atomic force microscopy which clearly shows a change in height from the bare electrode to the surface bound by the probe-protein. JF - Biosensors and Bioelectronics AU - Periyakaruppan, Adaikkappan AU - Arumugam, Prabhu U AU - Meyyappan, M AU - Koehne, Jessica E Y1 - 2011/10/15/ PY - 2011 DA - 2011 Oct 15 SP - 428 EP - 433 PB - Elsevier B.V., 660 White Plains Rd. Tarrytown NY 10591-5153 United States VL - 28 IS - 1 SN - 0956-5663, 0956-5663 KW - Biotechnology and Bioengineering Abstracts KW - Ricin KW - Carbon nanofiber KW - Antibody KW - Aptamer KW - Electrochemical impedance spectroscopy KW - Biosensors KW - Aptamers KW - Antibodies KW - Carbon KW - integrated circuits KW - Electrodes KW - Probes KW - atomic force microscopy KW - Spectroscopy KW - Electron transfer KW - W 30955:Biosensors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/907178755?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biosensors+and+Bioelectronics&rft.atitle=Detection+of+ricin+using+a+carbon+nanofiber+based+biosensor&rft.au=Periyakaruppan%2C+Adaikkappan%3BArumugam%2C+Prabhu+U%3BMeyyappan%2C+M%3BKoehne%2C+Jessica+E&rft.aulast=Periyakaruppan&rft.aufirst=Adaikkappan&rft.date=2011-10-15&rft.volume=28&rft.issue=1&rft.spage=428&rft.isbn=&rft.btitle=&rft.title=Biosensors+and+Bioelectronics&rft.issn=09565663&rft_id=info:doi/10.1016%2Fj.bios.2011.07.061 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-10-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Aptamers; Biosensors; Antibodies; integrated circuits; Carbon; Electrodes; Ricin; atomic force microscopy; Probes; Electron transfer; Spectroscopy DO - http://dx.doi.org/10.1016/j.bios.2011.07.061 ER - TY - NEWS T1 - The Strange Attraction of Gale Crater AN - 897651243 JF - UPI Space Daily AU - Dauna Coulter for NASA Science News Y1 - 2011/10/12/ PY - 2011 DA - 2011 Oct 12 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/897651243?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=The+Strange+Attraction+of+Gale+Crater&rft.au=Dauna+Coulter+for+NASA+Science+News&rft.aulast=Dauna+Coulter+for+NASA+Science+News&rft.aufirst=&rft.date=2011-10-12&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-10-12 ER - TY - NEWS T1 - Draconid Meteor Outburst AN - 896967653 JF - UPI Space Daily AU - Dr. Tony Phillips for NASA Science News Y1 - 2011/10/10/ PY - 2011 DA - 2011 Oct 10 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/896967653?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Draconid+Meteor+Outburst&rft.au=Dr.+Tony+Phillips+for+NASA+Science+News&rft.aulast=Dr.+Tony+Phillips+for+NASA+Science+News&rft.aufirst=&rft.date=2011-10-10&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-10-11 ER - TY - JOUR T1 - Dust grain evolution in spatially resolved T Tauri binaries AN - 1464882441; 2013-094566 AB - Core-accretion planet formation begins in protoplanetary disks with the growth of small, interstellar medium dust grains into larger particles. The progress of grain growth, which can be quantified using 10 mu m silicate spectroscopy, has broad implications for the final products of planet formation. Previous studies have attempted to correlate stellar and disk properties with the 10 mu m silicate feature in an effort to determine which stars are efficient at grain growth. Thus far there does not appear to be a dominant correlated parameter. In this paper, we use spatially resolved adaptive optics spectroscopy of nine T Tauri binaries as tight as 0".25 to determine if basic properties shared between binary stars, such as age, composition, and formation history, have an effect on dust grain evolution. We find with 90%-95% confidence that the silicate feature equivalent widths of binaries are more similar than those of randomly paired single stars, implying that shared properties do play an important role in dust grain evolution. At lower statistical significance, we find with 82% confidence that the secondary has a more prominent silicate emission feature (i.e., smaller grains) than the primary. If confirmed by larger surveys, this would imply that spectral type and/or binarity are important factors in dust grain evolution. Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The = Astrophysical Journal AU - Skemer, Andrew J AU - Close, Laird M AU - Greene, Thomas P AU - Hinz, Philip M AU - Hoffmann, William F AU - Males, Jared R Y1 - 2011/10/10/ PY - 2011 DA - 2011 Oct 10 EP - paper 43 PB - University of Chicago Press for the American Astronomical Society, Chicago, IL VL - 740 IS - 1 SN - 0004-637X, 0004-637X KW - silicates KW - cosmic dust KW - accretion KW - grains KW - stars KW - binary stars KW - T Tauri stars KW - planetology KW - protoplanetary disk KW - interstellar dust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1464882441?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+%3D+Astrophysical+Journal&rft.atitle=Dust+grain+evolution+in+spatially+resolved+T+Tauri+binaries&rft.au=Skemer%2C+Andrew+J%3BClose%2C+Laird+M%3BGreene%2C+Thomas+P%3BHinz%2C+Philip+M%3BHoffmann%2C+William+F%3BMales%2C+Jared+R&rft.aulast=Skemer&rft.aufirst=Andrew&rft.date=2011-10-10&rft.volume=740&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+%3D+Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F740%2F1%2F43 L2 - http://iopscience.iop.org/0004-637X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2013-01-01 N1 - PubXState - IL N1 - SuppNotes - Based on Publisher-supplied data N1 - Last updated - 2013-12-05 N1 - SubjectsTermNotLitGenreText - accretion; binary stars; cosmic dust; grains; interstellar dust; planetology; protoplanetary disk; silicates; stars; T Tauri stars DO - http://dx.doi.org/10.1088/0004-637X/740/1/43 ER - TY - NEWS T1 - External Tank Was Backbone Of Shuttle Launches AN - 896160807 JF - UPI Space Daily AU - Linda Herridge for NASA's Kennedy Space Center Y1 - 2011/10/05/ PY - 2011 DA - 2011 Oct 05 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/896160807?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=External+Tank+Was+Backbone+Of+Shuttle+Launches&rft.au=Linda+Herridge+for+NASA%27s+Kennedy+Space+Center&rft.aulast=Linda+Herridge+for+NASA%27s+Kennedy+Space+Center&rft.aufirst=&rft.date=2011-10-05&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-10-05 ER - TY - JOUR T1 - Solar wind access to lunar polar craters: Feedback between surface charging and plasma expansion AN - 1777155653; 16006440 AB - The lunar crater-solar wind interaction is self-consistently simulated in 2D The surface-plasma interaction is critical to the local wake environment Protons are drawn into the crater by the wake electric field Determining the plasma environment within permanently shadowed lunar craters is critical to understanding local processes such as surface charging, electrostatic dust transport, volatile sequestration, and space weathering. In order to investigate the nature of this plasma environment, the first two-dimensional kinetic simulations of solar wind expansion into a lunar crater with a self-consistent plasma-surface interaction have been undertaken. The present results reveal how the plasma expansion into a crater couples with the electrically-charged lunar surface to produce a quasi-steady wake structure. In particular, there is a negative feedback between surface charging and ambipolar wake potential that allows an equilibrium to be achieved, with secondary electron emission strongly moderating the process. A range of secondary electron yields is explored, and two distinct limits are highlighted in which either surface charging or ambipolar expansion is responsible for determining the overall wake structure. JF - Geophysical Research Letters AU - Zimmerman, MI AU - Farrell, WM AU - Stubbs, T J AU - Halekas, J S AU - Jackson, T L AD - NASA Goddard Space Flight Center, Greenbelt, Maryland, USA Y1 - 2011/10/05/ PY - 2011 DA - 2011 Oct 05 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 38 IS - 19 SN - 0094-8276, 0094-8276 KW - Earthquake Engineering Abstracts (EQ); Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE); Aerospace & High Technology Database (AH) KW - 2780 Magnetospheric Physics: Solar wind interactions with unmagnetized bodies KW - 6250 Planetary Sciences: Solar System Objects: Moon KW - 7807 Space Plasma Physics: Charged particle motion and acceleration KW - 7815 Space Plasma Physics: Electrostatic structures KW - lunar crater KW - particle in cell KW - plasma expansion KW - plasma surface interaction KW - plasma wake KW - Charging KW - Wakes KW - Lunar craters KW - Craters KW - Solar wind KW - Electric fields KW - Two dimensional KW - Simulation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777155653?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Solar+wind+access+to+lunar+polar+craters%3A+Feedback+between+surface+charging+and+plasma+expansion&rft.au=Zimmerman%2C+MI%3BFarrell%2C+WM%3BStubbs%2C+T+J%3BHalekas%2C+J+S%3BJackson%2C+T+L&rft.aulast=Zimmerman&rft.aufirst=MI&rft.date=2011-10-05&rft.volume=38&rft.issue=19&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2011GL048880 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-04-01 N1 - Number of references - 14 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1029/2011GL048880 ER - TY - JOUR T1 - SIMS analyses of silicon and oxygen isotope ratios for quartz from Archean and Paleoproterozoic banded iron formations AN - 921714318; 2012-022296 AB - Banded iron formations (BIFs) are chemical marine sediments dominantly composed of alternating iron-rich (oxide, carbonate, sulfide) and silicon-rich (chert, jasper) layers. Isotope ratios of iron, carbon, and sulfur in BIF iron-bearing minerals are biosignatures that reflect microbial cycling for these elements in BIFs. While much attention has focused on iron, banded iron formations are equally banded silica formations. Thus, silicon isotope ratios for quartz can provide insight on the sources and cycling of silicon in BIFs. BIFs are banded by definition, and microlaminae, or sub-mm banding, are characteristic of many BIFs. In situ microanalysis including secondary ion mass spectrometry is well-suited for analyzing such small features. In this study we used a CAMECA IMS-1280 ion microprobe to obtain highly accurate (+ or -0.3 ppm) and spatially resolved ( nearly equal 10mu m spot size) analyses of silicon and oxygen isotope ratios for quartz from several well known BIFs: Isua, southwest Greenland ( nearly equal 3.8 Ga); Hamersley Group, Western Australia ( nearly equal 2.5 Ga); Transvaal Group, South Africa ( nearly equal 2.5 Ga); and Biwabik Iron Formation, Minnesota, USA ( nearly equal 1.9 Ga). Values of delta (super 18) O range from +7.9 ppm to +27.5 ppm and include the highest reported delta (super 18) O values for BIF quartz. Values of delta (super 30) Si have a range of nearly equal 5 ppm from -3.7 ppm to +1.2 ppm and extend to the lowest delta (super 30) Si values for Precambrian cherts. Isua BIF samples are homogeneous in delta (super 18) O to + or -0.3 ppm at mm- to cm-scale, but are heterogeneous in delta (super 30) Si up to 3 ppm, similar to the range in delta (super 30) Si found in BIFs that have not experienced high temperature metamorphism (up to 300 degrees C). Values of delta (super 30) Si for quartz are homogeneous to + or -0.3 ppm in individual sub-mm laminae, but vary by up to 3 ppm between multiple laminae over mm-to-cm of vertical banding. The scale of exchange for Si in quartz in BIFs is thus limited to the size of microlaminae, or less than nearly equal 1 mm. We interpret differences in delta (super 30) Si between microlaminae as preserved from primary deposition. Silicon in BIF quartz is mostly of marine hydrothermal origin (delta (super 30) Si<--0.5 ppm) but silicon from continental weathering (delta (super 30) Si nearly equal 1 ppm) was an important source as early as 3.8 Ga. JF - Geochimica et Cosmochimica Acta AU - Heck, P R AU - Huberty, Jason M AU - Kita, N T AU - Ushikubo, T AU - Kozdon, R AU - Valley, J W Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 5879 EP - 5891 PB - Elsevier, New York, NY VL - 75 IS - 20 SN - 0016-7037, 0016-7037 KW - silicates KW - isotope fractionation KW - upper Precambrian KW - oxygen KW - ion probe data KW - silica minerals KW - isotopes KW - banded iron formations KW - Paleoproterozoic KW - mass spectra KW - silicon KW - stable isotopes KW - temperature KW - sedimentary rocks KW - lithogeochemistry KW - framework silicates KW - Archean KW - spectra KW - chemical composition KW - geochemistry KW - chemically precipitated rocks KW - Precambrian KW - textures KW - isotope ratios KW - Proterozoic KW - O-18/O-16 KW - iron formations KW - microscope methods KW - sedimentary petrology KW - chert KW - quartz KW - Si-30/Si-28 KW - crystal chemistry KW - SEM data KW - 06A:Sedimentary petrology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921714318?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=SIMS+analyses+of+silicon+and+oxygen+isotope+ratios+for+quartz+from+Archean+and+Paleoproterozoic+banded+iron+formations&rft.au=Heck%2C+P+R%3BHuberty%2C+Jason+M%3BKita%2C+N+T%3BUshikubo%2C+T%3BKozdon%2C+R%3BValley%2C+J+W&rft.aulast=Heck&rft.aufirst=P&rft.date=2011-10-01&rft.volume=75&rft.issue=20&rft.spage=5879&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2011.07.023 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 86 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - Archean; banded iron formations; chemical composition; chemically precipitated rocks; chert; crystal chemistry; framework silicates; geochemistry; ion probe data; iron formations; isotope fractionation; isotope ratios; isotopes; lithogeochemistry; mass spectra; microscope methods; O-18/O-16; oxygen; Paleoproterozoic; Precambrian; Proterozoic; quartz; sedimentary petrology; sedimentary rocks; SEM data; Si-30/Si-28; silica minerals; silicates; silicon; spectra; stable isotopes; temperature; textures; upper Precambrian DO - http://dx.doi.org/10.1016/j.gca.2011.07.023 ER - TY - JOUR T1 - Constraining atmospheric oxygen and sea water sulfate concentrations during Paleoproterozoic glaciation; in situ sulfur three isotope microanalysis of pyrite from the Turee Creek Group, Western Australia AN - 921714074; 2012-022222 AB - Previous efforts to constrain the timing of Paleoproterozoic atmospheric oxygenation have documented the disappearance of large, mass-independent sulfur isotope fractionation and an increase in mass-dependent sulfur isotope fractionation associated with multiple glaciations. At least one of these glacial events is preserved in diamictites of the approximately 2.4 Ga Meteorite Bore Member of the Kungarra Formation, Turee Creek Group, Western Australia. Outcrop exposures of this unit show the transition from the Boolgeeda Iron Formation of the upper Hamersley Group into clastic, glaciomarine sedimentary rocks of the Turee Creek Group. Here we report in situ multiple sulfur isotope and elemental abundance measurements of sedimentary pyrite at high spatial resolution, as well as the occurrence of detrital pyrite in the Meteorite Bore Member. The 15.3 ppm range of Delta (super 33) S in one sample containing detrital pyrite (-3.6 ppm to 11.7 ppm) is larger than previously reported worldwide, and there is evidence for mass-independent sulfur isotope fractionation in authigenic pyrite throughout the section (Delta (super 33) S from -0.8 ppm to 1.0 ppm). The 90 ppm range in delta (super 34) S observed (-45.5 ppm to 46.4 ppm) strongly suggests microbial sulfate reduction under non-sulfate limiting conditions, indicating significant oxidative weathering of sulfides on the continents. Multiple generations of pyrite are preserved, typically represented by primary cores with low delta (super 34) S (<--20 ppm) overgrown by euhedral rims with higher delta (super 34) S (4-7 ppm) and enrichments in As, Ni, and Co. The preservation of extremely sharp sulfur isotope gradients (30 ppm/<4mu m) implies limited sulfur diffusion and provides time and temperature constraints on the metamorphic history of the Meteorite Bore Member. Together, these results suggest that the Meteorite Bore Member was deposited during the final stages of the "Great Oxidation Event," when pO (sub 2) first became sufficiently high to permit pervasive oxidative weathering of continental sulfides, yet remained low enough to permit the production and preservation of mass-independent sulfur isotope fractionation. JF - Geochimica et Cosmochimica Acta AU - Williford, Kenneth H AU - Van Kranendonk, Martin J AU - Ushikubo, Takayuki AU - Kozdon, Reinhard AU - Valley, John W Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 5686 EP - 5705 PB - Elsevier, New York, NY VL - 75 IS - 19 SN - 0016-7037, 0016-7037 KW - Pilbara Craton KW - lithostratigraphy KW - sea water KW - upper Precambrian KW - oxygen KW - ion probe data KW - glaciation KW - isotopes KW - Paleoproterozoic KW - Western Australia KW - mass spectra KW - Fortescue Group KW - stable isotopes KW - Hamersley Group KW - electron probe data KW - sedimentary rocks KW - diamictite KW - glacial environment KW - sulfur cycle KW - basins KW - Australia KW - spectra KW - Fortescue Basin KW - chemical composition KW - geochemistry KW - Hamersley Basin KW - Precambrian KW - Australasia KW - isotope ratios KW - atmosphere KW - Proterozoic KW - Wyloo Group KW - basin analysis KW - geochemical cycle KW - Turee Creek Group KW - paleoenvironment KW - S-34/S-32 KW - sulfur KW - pyrite KW - Ashburton Basin KW - crystal chemistry KW - sulfides KW - clastic rocks KW - SEM data KW - 12:Stratigraphy KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921714074?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Constraining+atmospheric+oxygen+and+sea+water+sulfate+concentrations+during+Paleoproterozoic+glaciation%3B+in+situ+sulfur+three+isotope+microanalysis+of+pyrite+from+the+Turee+Creek+Group%2C+Western+Australia&rft.au=Williford%2C+Kenneth+H%3BVan+Kranendonk%2C+Martin+J%3BUshikubo%2C+Takayuki%3BKozdon%2C+Reinhard%3BValley%2C+John+W&rft.aulast=Williford&rft.aufirst=Kenneth&rft.date=2011-10-01&rft.volume=75&rft.issue=19&rft.spage=5686&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2011.07.010 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 115 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables, geol. sketch map N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - Ashburton Basin; atmosphere; Australasia; Australia; basin analysis; basins; chemical composition; clastic rocks; crystal chemistry; diamictite; electron probe data; Fortescue Basin; Fortescue Group; geochemical cycle; geochemistry; glacial environment; glaciation; Hamersley Basin; Hamersley Group; ion probe data; isotope ratios; isotopes; lithostratigraphy; mass spectra; oxygen; paleoenvironment; Paleoproterozoic; Pilbara Craton; Precambrian; Proterozoic; pyrite; S-34/S-32; sea water; sedimentary rocks; SEM data; spectra; stable isotopes; sulfides; sulfur; sulfur cycle; Turee Creek Group; upper Precambrian; Western Australia; Wyloo Group DO - http://dx.doi.org/10.1016/j.gca.2011.07.010 ER - TY - JOUR T1 - Cold glacial ocean would have inhibited phyllosilicate sedimentation on early Mars AN - 913705516; 2012-011219 JF - Nature Geoscience AU - Fairen, Alberto G AU - Davila, Alfonso F AU - Gago-Duport, Luis AU - Haqq-Misra, Jacob D AU - Gil, Carolina AU - McKay, Christopher P AU - Kasting, James F Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 667 EP - 670 PB - Nature Publishing Group, London VL - 4 IS - 10 SN - 1752-0894, 1752-0894 KW - silicates KW - Noachian KW - sedimentation KW - Mars KW - terrestrial planets KW - planets KW - marine sediments KW - paleoenvironment KW - marine environment KW - glacial environment KW - sediments KW - terrestrial comparison KW - sheet silicates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/913705516?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+Geoscience&rft.atitle=Cold+glacial+ocean+would+have+inhibited+phyllosilicate+sedimentation+on+early+Mars&rft.au=Fairen%2C+Alberto+G%3BDavila%2C+Alfonso+F%3BGago-Duport%2C+Luis%3BHaqq-Misra%2C+Jacob+D%3BGil%2C+Carolina%3BMcKay%2C+Christopher+P%3BKasting%2C+James+F&rft.aulast=Fairen&rft.aufirst=Alberto&rft.date=2011-10-01&rft.volume=4&rft.issue=10&rft.spage=667&rft.isbn=&rft.btitle=&rft.title=Nature+Geoscience&rft.issn=17520894&rft_id=info:doi/10.1038%2FNGEO1243 L2 - http://www.nature.com/ngeo/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 30 N1 - Document feature - illus. N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - glacial environment; marine environment; marine sediments; Mars; Noachian; paleoenvironment; planets; sedimentation; sediments; sheet silicates; silicates; terrestrial comparison; terrestrial planets DO - http://dx.doi.org/10.1038/NGEO1243 ER - TY - JOUR T1 - Saturn's F ring grains; aggregates made of crystalline water ice AN - 907924028; 2012-001553 JF - Icarus AU - Vahidinia, Sanaz AU - Cuzzi, Jeffrey N AU - Hedman, Matt M AU - Draine, Bruce AU - Clark, Roger N AU - Roush, Ted AU - Filacchione, Gianrico AU - Nicholson, Philip D AU - Brown, Robert H AU - Buratti, Bonnie J AU - Sotin, Christophe Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 682 EP - 694 PB - Elsevier, New York, NY VL - 215 IS - 2 SN - 0019-1035, 0019-1035 KW - Christiansen frequency KW - near-infrared spectra KW - power law KW - Visual and Infrared Mapping Spectrometer KW - crystallinity KW - infrared spectra KW - giant planets KW - Saturn KW - absorption KW - size distribution KW - Cassini-Huygens Mission KW - Mie scattering KW - ice KW - optical constants KW - discrete dipole approximation KW - composition KW - spectra KW - outer planets KW - radiative transfer KW - grain size KW - depth KW - models KW - planets KW - planetary rings KW - grains KW - refractive index KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/907924028?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Saturn%27s+F+ring+grains%3B+aggregates+made+of+crystalline+water+ice&rft.au=Vahidinia%2C+Sanaz%3BCuzzi%2C+Jeffrey+N%3BHedman%2C+Matt+M%3BDraine%2C+Bruce%3BClark%2C+Roger+N%3BRoush%2C+Ted%3BFilacchione%2C+Gianrico%3BNicholson%2C+Philip+D%3BBrown%2C+Robert+H%3BBuratti%2C+Bonnie+J%3BSotin%2C+Christophe&rft.aulast=Vahidinia&rft.aufirst=Sanaz&rft.date=2011-10-01&rft.volume=215&rft.issue=2&rft.spage=682&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2011.04.011 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 51 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - absorption; Cassini-Huygens Mission; Christiansen frequency; composition; crystallinity; depth; discrete dipole approximation; giant planets; grain size; grains; ice; infrared spectra; Mie scattering; models; near-infrared spectra; optical constants; outer planets; particles; planetary rings; planets; power law; radiative transfer; refractive index; Saturn; size distribution; spectra; Visual and Infrared Mapping Spectrometer DO - http://dx.doi.org/10.1016/j.icarus.2011.04.011 ER - TY - JOUR T1 - The influence of multivariate analysis methods and target grain size on the accuracy of remote quantitative chemical analysis of rocks using laser induced breakdown spectroscopy AN - 907924021; 2012-001552 JF - Icarus AU - Anderson, Ryan B AU - Morris, Richard V AU - Clegg, Samuel M AU - Bell, James F, III AU - Wiens, Roger C AU - Humphries, Seth D AU - Mertzman, Stanley A AU - Graff, Trevor G AU - McInroy, Rhonda Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 608 EP - 627 PB - Elsevier, New York, NY VL - 215 IS - 2 SN - 0019-1035, 0019-1035 KW - methods KW - laser-induced breakdown spectroscopy KW - data processing KW - Mars KW - sampling KW - quantitative analysis KW - multivariate analysis KW - standard materials KW - neural networks KW - algorithms KW - chemical composition KW - ChemCam instrument KW - partial least-squares analysis KW - chemical analysis KW - precision KW - principal components analysis KW - grain size KW - statistical analysis KW - terrestrial planets KW - planets KW - Mars Science Laboratory KW - spectroscopy KW - accuracy KW - regression analysis KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/907924021?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=The+influence+of+multivariate+analysis+methods+and+target+grain+size+on+the+accuracy+of+remote+quantitative+chemical+analysis+of+rocks+using+laser+induced+breakdown+spectroscopy&rft.au=Anderson%2C+Ryan+B%3BMorris%2C+Richard+V%3BClegg%2C+Samuel+M%3BBell%2C+James+F%2C+III%3BWiens%2C+Roger+C%3BHumphries%2C+Seth+D%3BMertzman%2C+Stanley+A%3BGraff%2C+Trevor+G%3BMcInroy%2C+Rhonda&rft.aulast=Anderson&rft.aufirst=Ryan&rft.date=2011-10-01&rft.volume=215&rft.issue=2&rft.spage=608&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2011.07.034 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 51 N1 - PubXState - NY N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - accuracy; algorithms; ChemCam instrument; chemical analysis; chemical composition; data processing; grain size; laser-induced breakdown spectroscopy; Mars; Mars Science Laboratory; methods; multivariate analysis; neural networks; partial least-squares analysis; planets; precision; principal components analysis; quantitative analysis; regression analysis; remote sensing; sampling; spectroscopy; standard materials; statistical analysis; terrestrial planets DO - http://dx.doi.org/10.1016/j.icarus.2011.07.034 ER - TY - JOUR T1 - New analysis of lunar prospector radio tracking data brings the nearside gravity field of the Moon with an unprecedented resolution AN - 907923637; 2012-001546 JF - Icarus AU - Han, Shin-Chan AU - Mazarico, Erwan AU - Rowlands, David AU - Lemoine, Frank AU - Goossens, Sander Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 455 EP - 459 PB - Elsevier, New York, NY VL - 215 IS - 2 SN - 0019-1035, 0019-1035 KW - Lunar Orbiter Laser Altimeter KW - power law KW - Moon KW - Lunar Reconnaissance Orbiter KW - altitude KW - Lunar Prospector Program KW - Doppler tracking KW - radar methods KW - satellite methods KW - admittance KW - spherical harmonic analysis KW - models KW - gravity anomalies KW - gravity field KW - topography KW - farside KW - Kaguya Mission KW - MESSENGER Mission KW - Gravity Recovery and Interior Laboratory KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/907923637?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=New+analysis+of+lunar+prospector+radio+tracking+data+brings+the+nearside+gravity+field+of+the+Moon+with+an+unprecedented+resolution&rft.au=Han%2C+Shin-Chan%3BMazarico%2C+Erwan%3BRowlands%2C+David%3BLemoine%2C+Frank%3BGoossens%2C+Sander&rft.aulast=Han&rft.aufirst=Shin-Chan&rft.date=2011-10-01&rft.volume=215&rft.issue=2&rft.spage=455&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2011.07.020 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 13 N1 - PubXState - NY N1 - Document feature - illus. N1 - SuppNotes - Supplementary data available in online version N1 - Last updated - 2012-06-07 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - admittance; altitude; Doppler tracking; farside; gravity anomalies; gravity field; Gravity Recovery and Interior Laboratory; Kaguya Mission; Lunar Orbiter Laser Altimeter; Lunar Prospector Program; Lunar Reconnaissance Orbiter; MESSENGER Mission; models; Moon; power law; radar methods; remote sensing; satellite methods; spherical harmonic analysis; topography DO - http://dx.doi.org/10.1016/j.icarus.2011.07.020 ER - TY - JOUR T1 - Irrigation induced surface cooling in the context of modern and increased greenhouse gas forcing AN - 902365050; 15845067 AB - There is evidence that expected warming trends from increased greenhouse gas (GHG) forcing have been locally 'masked' by irrigation induced cooling, and it is uncertain how the magnitude of this irrigation masking effect will change in the future. Using an irrigation dataset integrated into a global general circulation model, we investigate the equilibrium magnitude of irrigation induced cooling under modern (Year 2000) and increased (A1B Scenario, Year 2050) GHG forcing, using modern irrigation rates in both scenarios. For the modern scenario, the cooling is largest over North America, India, the Middle East, and East Asia. Under increased GHG forcing, this cooling effect largely disappears over North America, remains relatively unchanged over India, and intensifies over parts of China and the Middle East. For North America, irrigation significantly increases precipitation under modern GHG forcing; this precipitation enhancement largely disappears under A1B forcing, reducing total latent heat fluxes and the overall irrigation cooling effect. Over India, irrigation rates are high enough to keep pace with increased evaporative demand from the increased GHG forcing and the magnitude of the cooling is maintained. Over China, GHG forcing reduces precipitation and shifts the region to a drier evaporative regime, leading to a relatively increased impact of additional water from irrigation on the surface energy balance. Irrigation enhances precipitation in the Middle East under increased GHG forcing, increasing total latent heat fluxes and enhancing the irrigation cooling effect. Ultimately, the extent to which irrigation will continue to compensate for the warming from increased GHG forcing will primarily depend on changes in the background evaporative regime, secondary irrigation effects (e.g. clouds, precipitation), and the ability of societies to maintain (or increase) current irrigation rates. JF - Climate Dynamics AU - Cook, Benjamin I AU - Puma, Michael J AU - Krakauer, Nir Y AD - NASA Goddard Institute for Space Studies, 2880 Broadway, New York, NY, 10025, USA, bc9z@ldeo.columbia.edu bc9z@ldeo.columbia.edu Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 1587 EP - 1600 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 37 IS - 7-8 SN - 0930-7575, 0930-7575 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Sustainability Science Abstracts; Meteorological & Geoastrophysical Abstracts KW - Hydrological Regime KW - Surface Irrigation KW - Rainfall KW - Climate change KW - Latent heat KW - Latent Heat KW - India KW - Middle East KW - Atmospheric precipitations KW - North America KW - Heat flux KW - Climates KW - Irrigation KW - Greenhouse effect KW - Atmospheric circulation KW - Precipitation KW - Cooling KW - irrigation water KW - Clouds KW - Energy balance KW - General circulation models KW - Atmospheric forcing KW - Global warming KW - Irrigation Effects KW - China, People's Rep. KW - Greenhouse gases KW - SW 0810:General KW - M3 1010:Issues in Sustainable Development KW - M2 551.58:Climatology (551.58) KW - Q2 09244:Air-sea coupling UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/902365050?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climate+Dynamics&rft.atitle=Irrigation+induced+surface+cooling+in+the+context+of+modern+and+increased+greenhouse+gas+forcing&rft.au=Cook%2C+Benjamin+I%3BPuma%2C+Michael+J%3BKrakauer%2C+Nir+Y&rft.aulast=Cook&rft.aufirst=Benjamin&rft.date=2011-10-01&rft.volume=37&rft.issue=7-8&rft.spage=1587&rft.isbn=&rft.btitle=&rft.title=Climate+Dynamics&rft.issn=09307575&rft_id=info:doi/10.1007%2Fs00382-010-0932-x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Atmospheric precipitations; Energy balance; Atmospheric forcing; Climate change; Irrigation; Atmospheric circulation; Greenhouse effect; Clouds; Heat flux; General circulation models; Global warming; Precipitation; Greenhouse gases; Latent heat; Rainfall; irrigation water; Hydrological Regime; Surface Irrigation; Climates; Irrigation Effects; Cooling; Latent Heat; North America; China, People's Rep.; Middle East; India DO - http://dx.doi.org/10.1007/s00382-010-0932-x ER - TY - JOUR T1 - Inversion of magnetic measurements of the CHAMP satellite over the Pannonian Basin AN - 1734270603; 2015-111127 AB - The Pannonian Basin is a deep intra-continental basin that formed as part of the Alpine orogeny. In order to study the nature of the crustal basement we used the long-wavelength magnetic anomalies acquired by the CHAMP satellite. The anomalies were distributed in a spherical shell, some 107,927 data recorded between January 1 and December 31 of 2008. They covered the Pannonian Basin and its vicinity. These anomaly data were interpolated into a spherical grid of 0.5 degrees X0.5 degrees , at the elevation of 324 km by the Gaussian weight function. The vertical gradient of these total magnetic anomalies was also computed and mapped to the surface of a sphere at 324 km elevation. The former spherical anomaly data at 425 km altitude continued downward to 324 km. To interpret these data at the elevation of 324 km we used an inversion method. A polygonal prism forward model was used for the inversion. The minimum problem was solved numerically by the Simplex and Simulated annealing methods; a L (sub 2) norm in the case of Gaussian distribution parameters and a L (sub 1) norm was used in the case of Laplace distribution parameters. We interpret that the magnetic anomaly was produced by several sources and the effect of the sable magnetization of the exsolution of hemo-ilmenite minerals in the upper crustal metamorphic rocks. JF - Journal of Applied Geophysics AU - Kis, K I AU - Taylor, P T AU - Wittmann, G AU - Toronyi, B AU - Puszta, S Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 412 EP - 418 PB - Elsevier, Amsterdam VL - 75 IS - 2 SN - 0926-9851, 0926-9851 KW - Pannonian Basin KW - geophysical surveys KW - Bayesian analysis KW - statistical analysis KW - geophysical methods KW - magnetic anomalies KW - inverse problem KW - interpolation KW - Europe KW - satellite methods KW - CHAMP KW - surveys KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1734270603?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Geophysics&rft.atitle=Inversion+of+magnetic+measurements+of+the+CHAMP+satellite+over+the+Pannonian+Basin&rft.au=Kis%2C+K+I%3BTaylor%2C+P+T%3BWittmann%2C+G%3BToronyi%2C+B%3BPuszta%2C+S&rft.aulast=Kis&rft.aufirst=K&rft.date=2011-10-01&rft.volume=75&rft.issue=2&rft.spage=412&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Geophysics&rft.issn=09269851&rft_id=info:doi/10.1016%2Fj.jappgeo.2011.07.018 L2 - http://www.sciencedirect.com/science/journal/09269851 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2015-01-01 N1 - Number of references - 36 N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2015-11-19 N1 - CODEN - GEOXAV N1 - SubjectsTermNotLitGenreText - Bayesian analysis; CHAMP; Europe; geophysical methods; geophysical surveys; interpolation; inverse problem; magnetic anomalies; Pannonian Basin; satellite methods; statistical analysis; surveys DO - http://dx.doi.org/10.1016/j.jappgeo.2011.07.018 ER - TY - JOUR T1 - Impact of NASA EOS Instrument Data on the Scientific Literature: 10 Years of Published Research Results from Terra, Aqua, and Aura AN - 1512200697; 201403491 AB - In the absence of formal data set citation standards in the literature, there is no quantitative information on the connection between data distributed from NASA's Earth Observing System (EOS) data centers and subsequent research published using EOS data. This paper provides an analysis of a 10-year citation history of research using EOS instrument data in the peer-reviewed literature, which illustrates that the high volume of published EOS-related papers is indicative of the use of data from the NASA DAACs and comprises a significant contribution to the body of scientific knowledge about the Earth's climate. Adapted from the source document. JF - Issues in Science & Technology Librarianship AU - Major, Gene R AD - NASA Goddard Space Flight Center Library, Greenbelt, Maryland eugene.r.major@nasa.gov Y1 - 2011/10// PY - 2011 DA - October 2011 PB - Association of College and Research Libraries, Chicago, IL IS - 67 SN - 1092-1206, 1092-1206 KW - Scholarly publishing KW - NASA KW - Datasets KW - Citation analysis KW - Meteorology KW - article KW - 5.24: BIBLIOMETRICS, SCIENTOMETRICS, INFORMETRICS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1512200697?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Alisa&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Issues+in+Science+%26+Technology+Librarianship&rft.atitle=Impact+of+NASA+EOS+Instrument+Data+on+the+Scientific+Literature%3A+10+Years+of+Published+Research+Results+from+Terra%2C+Aqua%2C+and+Aura&rft.au=Major%2C+Gene+R&rft.aulast=Major&rft.aufirst=Gene&rft.date=2011-10-01&rft.volume=&rft.issue=67&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Issues+in+Science+%26+Technology+Librarianship&rft.issn=10921206&rft_id=info:doi/ L2 - http://www.istl.org/ LA - English DB - Library & Information Science Abstracts (LISA) N1 - Date revised - 2015-06-01 N1 - Last updated - 2016-09-27 N1 - SubjectsTermNotLitGenreText - Citation analysis; Scholarly publishing; Datasets; Meteorology; NASA ER - TY - JOUR T1 - Public? Yes, they can be engaged in planetary science AN - 1473592769; 2013-005522 AB - A NASA scientist said "science isn't done until it's shared with the public." Scientists and education specialists took that charge and shared the excitement and the science of planetary exploration with students, K-12 educators, informal educators, and the public. Many NASA education programs focus on informal and public audiences. NASA Space Science Day (NSSD) college students and Girl Scout volunteers, trained in planetary science and activities, take simple thematic planetary activities to after school settings, events or camps. While students have fun, this simple engagement can increase awareness of planetary topics and careers (External Evaluation NSSD 2010). Another level of engaging students and the public is through planetary samples and analogs. Rocks from space provide a connection to planetary and Earth science through activities, observations, and experiments. Through trained educators, NASA loans samples of lunar rocks or meteorites to classrooms, libraries, etc. University educators borrow lunar and meteorite petrologic thin sections for courses. NASA provides soil simulants, lunar and martian, so students and the public can experience the feel and look of the surface of another planetary body and make comparisons with Earth. At the investigative research level, students and out-of-school time programs use the vast on-line data sets. The Expedition Earth and Beyond Program enables students to research Earth via images from Space Station and compare Earth to planetary bodies using images of Mars, Moon, Mercury. This is one of several programs where students conduct authentic research utilizing real NASA data. Participatory science is a different style of involvement where the public adds to data accumulation and interpretation. Moon Zoo and Stardust at Home are examples of public engagement in real planetary science. To identify interplanetary dust particles trapped in aerogel, Stardust at Home trains the public to identify dust particles in images. This large number of eyes focused on these images has increased data accumulation. Moon Zoo public participants classify images from the Lunar Reconnaissance Orbiter. These programs show that the public can have a direct involvement with planetary science. The future will bring many more public participation interactive research projects. JF - Abstracts with Programs - Geological Society of America AU - Allen, Jaclyn AU - Galindo, Charles AU - Asplund, Shari AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 244 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - technology KW - public awareness KW - NASA KW - government agencies KW - planetology KW - education KW - information management KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1473592769?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Public%3F+Yes%2C+they+can+be+engaged+in+planetary+science&rft.au=Allen%2C+Jaclyn%3BGalindo%2C+Charles%3BAsplund%2C+Shari%3BAnonymous&rft.aulast=Allen&rft.aufirst=Jaclyn&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=244&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2014-01-02 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - education; government agencies; information management; NASA; planetology; public awareness; technology ER - TY - JOUR T1 - Participatory exploration of Mars; educational experiences now and in the future AN - 1473586541; 2013-005515 AB - Students today are digital natives, engaged in an online, collaborative participatory culture, and increasingly exposed to educational technologies that allow them to learn through simulations of geologic processes, contributions to data analysis, and even discovery of new knowledge through personal and crowd-sourcing efforts. NASA's Be A Martian community numbers over 60,000 citizen scientists, and prototype 3D experiences are in the works for the Curiosity rover's landing to provide authentic "as if you were there" experiences of the Martian surface through the integration of digital terrain models and augmented-reality information, served through the cloud for hundreds of thousands of potential simultaneous "armchair explorers." Natural user interfaces (such as Kinect) that allow more freeform experiences of Mars are also being developed for "virtual field trips" and other "play" and "problem-solving" spaces. The challenge for education is to combine these technologies with learning theories in order to augment K-12 student achievement in Earth & Space sciences. This presentation will cover recent research in digital-age geoscience learning being conducted by NASA's Mars education projects, and present future possibilities and areas of further research. JF - Abstracts with Programs - Geological Society of America AU - Viotti, Michelle AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 242 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - terrestrial planets KW - programs KW - planets KW - technology KW - K-12 education KW - curricula KW - Mars KW - education KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1473586541?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Participatory+exploration+of+Mars%3B+educational+experiences+now+and+in+the+future&rft.au=Viotti%2C+Michelle%3BAnonymous&rft.aulast=Viotti&rft.aufirst=Michelle&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=242&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2014-01-02 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - curricula; education; K-12 education; Mars; planets; programs; technology; terrestrial planets ER - TY - JOUR T1 - Lava flow emplacement on Mars and Io; insights from geologic mapping AN - 1416686699; 2013-060274 AB - We are using geologic mapping from NASA and ESA spacecraft images to investigate the emplacement styles and types of lava flows that formed on Olympus, Arsia and Pavonis Montes in the Tharsis region of Mars, and on Jupiter's volcanic moon Io. On Olympus Mons we find the main flank to be dominated by channel- and tube-fed flows, as well as lava fans (>80% of which are associated with tubes). Our original assessment that older tube-fed flows are buried by younger channel-fed flows is not consistent with more recent shield-wide mapping. Higher resolution, predominantly CTX, images provide new insight into the details of these fine scale contacts. For Io, global geologic mapping at the 1:15,000,000 scale shows that Io's surface is approximately 28% lava flow fields, with another approximately 2% composed of paterae (caldera-like depressions containing lava flows or lava lakes). Bright (sulfur) lava flow fields outnumber dark (silicate) flow fields by a ratio of approximately 1.5:1. This suggests that secondary sulfur volcanism may only have a minor role in Io's current volcanic activity relative to primary sulfur volcanism (although there may be a scale-dependence that requires further investigation). There is an unusual concentration of bright flows at approximately 45 degrees -75 degrees N, approximately 60-120 degrees W, perhaps indicative of past, extensive primary sulfur volcanism in this region. Higher-resolution Galileo observations show dark lava flow fields with morphologies similar to Hawaiian compound flow fields (Promethean style), whereas others are associated with larger eruptions and have morphologies similar to platy/ridged flows like Laki in Iceland or in the Cerberus region on Mars (Pillanian style). The fact that 93.5% of Ionian hot spots correlate with either dark (younger) or undivided (older) lava flows or patera floors (only <2% are low-temperature hot spots that correlate with bright, possibly sulfur flows) suggests that silicate materials are the dominant component of Io's active volcanism. JF - Abstracts with Programs - Geological Society of America AU - Williams, David A AU - Keszthelyi, Laszlo P AU - Crown, David A AU - Bleacher, Jacob E AU - Garry, W Brent AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 266 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - terrestrial planets KW - planets KW - lava flows KW - Jupiter KW - Io Satellite KW - Mars KW - outer planets KW - Galilean satellites KW - satellites KW - emplacement KW - giant planets KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1416686699?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Lava+flow+emplacement+on+Mars+and+Io%3B+insights+from+geologic+mapping&rft.au=Williams%2C+David+A%3BKeszthelyi%2C+Laszlo+P%3BCrown%2C+David+A%3BBleacher%2C+Jacob+E%3BGarry%2C+W+Brent%3BAnonymous&rft.aulast=Williams&rft.aufirst=David&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=266&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-08-02 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - emplacement; Galilean satellites; giant planets; Io Satellite; Jupiter; lava flows; Mars; outer planets; planets; satellites; terrestrial planets ER - TY - JOUR T1 - Influences of microbial communities on carbonate fabrics in Recent lacustrine microbialites, Pavilion Lake, British Columbia AN - 1400616488; 2013-053006 AB - Understanding how microbial communities influence microbialite textures is crucial for interpreting microbial evolution and ecology from ancient microbialites. Recent microbialites in Pavilion Lake, BC, are ideal for investigating how diverse microbial communities influence carbonate fabrics because they are characterized by well preserved internal microbial communities and in situ lithification. Pavilion Lake supports microbialites of various sizes and morphology, and many microbialites resemble ancient thrombolites and dendrolites. This study focuses on a suite of samples from various depths that captures the morphological variability of Pavilion microbialites. Petrographic and SEM analysis revealed that fabrics reflecting both coccoidal and filamentous microbes are defined by the distribution of dark pigments in microspar and by crystal arrangement. The spatial heterogeneity of morphologically diverse communities is preserved in carbonate fabrics in the lithified structure; both filamentous and coccoidal microbes are uniquely associated with specific spatially distinct fabrics. For example, radiating filaments form rounded hemispheres on the microbialite surface. Radiating fabrics defined by pigments are also present in dense microspar within the mineralized microbialite. However, some internal hemispheres lack a radiating fabric and consist of dense pigmented carbonate with no relict filament fabric. This texture is indistinguishable from other fabrics that do not preserve microbes. Some fabrics without preserved microbes are interpreted to have formed with coccoidal communities based on intergradation with fabrics that do preserve coccoids. These results suggest that filamentous communities produce rounded growth structures that resemble mesoclots of ancient thrombolites, and that spatially and morphologically distinct communities produce indistinguishable carbonate fabrics. Because Pavilion microbialite fabrics resemble textures in many Paleozoic thrombolites and dendrolites, they can provide insight into formation of ancient structures without preserved microbial communities. JF - Abstracts with Programs - Geological Society of America AU - Harwood, Cara L AU - Sumner, Dawn Y AU - Mackey, Tyler J AU - Brady, Allyson L AU - Slater, Greg F AU - Lim, Darlene S S AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 504 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - limestone KW - communities KW - textures KW - biogenic structures KW - British Columbia KW - Pavilion Lake KW - paleoecology KW - thrombolites KW - spatial variations KW - sedimentary rocks KW - Canada KW - microbialite KW - Western Canada KW - fabric KW - carbonate rocks KW - sedimentary structures KW - SEM data KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1400616488?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Influences+of+microbial+communities+on+carbonate+fabrics+in+Recent+lacustrine+microbialites%2C+Pavilion+Lake%2C+British+Columbia&rft.au=Harwood%2C+Cara+L%3BSumner%2C+Dawn+Y%3BMackey%2C+Tyler+J%3BBrady%2C+Allyson+L%3BSlater%2C+Greg+F%3BLim%2C+Darlene+S+S%3BAnonymous&rft.aulast=Harwood&rft.aufirst=Cara&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=504&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-07-18 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - biogenic structures; British Columbia; Canada; carbonate rocks; communities; fabric; limestone; microbialite; paleoecology; Pavilion Lake; sedimentary rocks; sedimentary structures; SEM data; spatial variations; textures; thrombolites; Western Canada ER - TY - JOUR T1 - The distribution of volcanic vents across the eastern Tharsis plains, Mars AN - 1400615422; 2013-053187 AB - The Tharsis region on Mars includes Pavonis, Ascraeus, and Arsia Montes. At least five major mantle-sourced magmatic-tectonic episodes are suggested to have produced radiating and circumferential structural features in and around Tharsis, but the region also includes numerous small volcanic vents. The genetic relationships between the Tharsis Montes and neighboring vent fields are poorly constrained. The goal of this project is to characterize the location of small vents east of Pavonis Mons and constrain the number of discrete vent fields in this region in order to postulate how related magma production events contributed to the development of the Tharsis. Mapping of volcanic vents east of Pavonis Mons reveals a variety of small-vents (tens of km in diameter). This study uses data from the Thermal Emission Imaging System, Context Camera, and Mars Orbiter Laser Altimeter. Small vents were primarily identified based on the presence of radiating lava flows from a common topographic high point, or linear fissure. Each vent was assigned a coordinate at the center of the inferred eruptive activity to represent the pathway through which magma reached the surface. We identified 126 vents and analyzed their locations using sample-size-dependent nearest neighbor statistics to test for significant departures from randomness. Relative to a homogeneous Poisson model, the volcanic vents exhibit a significant tendency toward clustering. This suggests that volcanic vents formed closer together than a random model predicts. However, mapping does not lead us to believe that multiple, temporally and spatially distinct magma generation events are responsible for the development of this field because we do not see consistent embayment of one group by another. Clustering is therefore inferred to result from closely-spaced vents occurring within the same volcanic edifice or fissure. However, structural controls might have also concentrated volcanism within several broader regions. JF - Abstracts with Programs - Geological Society of America AU - Pendleton, Matthew W AU - Bleacher, Jacob E AU - Hamilton, Christopher W AU - Glaze, Lori S AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 676 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - THEMIS KW - Arsia Mons KW - Mars KW - mapping KW - Pavonis Mons KW - Context Camera KW - terrestrial planets KW - models KW - spatial distribution KW - planets KW - volcanic features KW - Ascraeus Mons KW - volcanism KW - MOLA KW - vents KW - Tharsis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1400615422?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=The+distribution+of+volcanic+vents+across+the+eastern+Tharsis+plains%2C+Mars&rft.au=Pendleton%2C+Matthew+W%3BBleacher%2C+Jacob+E%3BHamilton%2C+Christopher+W%3BGlaze%2C+Lori+S%3BAnonymous&rft.aulast=Pendleton&rft.aufirst=Matthew&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=676&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-07-18 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Arsia Mons; Ascraeus Mons; Context Camera; mapping; Mars; models; MOLA; Pavonis Mons; planets; spatial distribution; terrestrial planets; Tharsis; THEMIS; vents; volcanic features; volcanism ER - TY - JOUR T1 - 13C-enriched methane produced biologically at hypersaline Mars analog sites AN - 1400615408; 2013-053182 AB - Methane is one of the biosignature gases targeted for detection in the atmosphere of Mars by the 2012 Mars Science Laboratory and the 2016 ExoMars Trace Gas Orbiter. Both missions will have instruments to measure both concentration and stable carbon isotopes of methane. To give context to the Mars methane data when it returns, we have been working at hypersaline Mars analog sites here on Earth, environments which are similar to the southern highlands of Mars where chloride minerals have been found. We have examined methanogenesis in hypersaline ponds (salinities of approximately 55 to approximately 300 ppt) in Baja California Sur and in the Don Edwards National Wildlife Refuge in northern California. At the lower salinity ponds, thick microbial mats dominate; at the higher salinity ponds, gypsum/halite crusts of containing endolithic microbial communities form. Incubations of the mats and crusts resulted in the production of methane, with the highest production ( approximately 20 nmol/g/d) occurring within the gypsum crust. The carbon isotopic composition of this produced methane averaged -36 ppm, a value that would typically be considered non-biogenic. Values at all sites ranged from about -60 ppm (at lower salinity sites) to -40 ppm (at higher salinity sites). To understand the biologically-produced, isotopically-enriched values at the high salinity sites, we also measured the concentration and isotopic composition of the particulate organic carbon (POC) and determined the main substrates used by the methanogens. POC content was low, generally less than 1% of the total mass. The isotopic composition of the POC ranged from -13 to -21 ppm. The main substrates used by the methanogens were the non-competitive substrates, the methylamines and methanol. When increasing amounts (up to 1000 mu M) of trimethylamine were added to incubation vials containing gypsum/halite crusts, the resultant methane became increasingly depleted in (super 13) C, resembling methane emitted from marine and freshwater environments. This suggests that the methanogens living in these evaporitic crusts are substrate-limited in situ, and so do not fractionate the methane carbon isotopes to the fullest extent possible. Such substrate limitation for methanogens resulting in abnormally high biogenic methane delta (super 13) C values may be characteristic of these endolithic microbial communities. JF - Abstracts with Programs - Geological Society of America AU - Kelley, Cheryl A AU - Poole, Jennifer A AU - Tazaz, Amanda M AU - Chanton, Jeffrey P AU - Bebout, Brad M AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 675 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - halides KW - communities KW - isotopes KW - aliphatic hydrocarbons KW - microbial mats KW - Mars KW - salinity KW - stable isotopes KW - California KW - Santa Clara County California KW - gypsum KW - carbon KW - chlorides KW - interplanetary comparison KW - sedimentary structures KW - methane KW - sulfates KW - isotope ratios KW - biogenic structures KW - Central California KW - C-13/C-12 KW - atmosphere KW - alkanes KW - halite KW - measurement KW - terrestrial planets KW - planets KW - organic compounds KW - Don Edwards National Wildlife Refuge KW - Mexico KW - Baja California Sur Mexico KW - natural analogs KW - hydrocarbons KW - C-13 KW - endolithic taxa KW - 04:Extraterrestrial geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1400615408?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=13C-enriched+methane+produced+biologically+at+hypersaline+Mars+analog+sites&rft.au=Kelley%2C+Cheryl+A%3BPoole%2C+Jennifer+A%3BTazaz%2C+Amanda+M%3BChanton%2C+Jeffrey+P%3BBebout%2C+Brad+M%3BAnonymous&rft.aulast=Kelley&rft.aufirst=Cheryl&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=675&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-07-18 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; atmosphere; Baja California Sur Mexico; biogenic structures; C-13; C-13/C-12; California; carbon; Central California; chlorides; communities; Don Edwards National Wildlife Refuge; endolithic taxa; gypsum; halides; halite; hydrocarbons; interplanetary comparison; isotope ratios; isotopes; Mars; measurement; methane; Mexico; microbial mats; natural analogs; organic compounds; planets; salinity; Santa Clara County California; sedimentary structures; stable isotopes; sulfates; terrestrial planets; United States ER - TY - JOUR T1 - Planetary surfaces and atmosphere characterization from robotic platform using remote Raman, fluorescence, and lidar instrument AN - 1371762922; 2013-049032 AB - An active remote sensing instrument is developed and demonstrated at NASA Langley Research Center by combining Raman, Fluorescence Spectroscopy, and Lidar subsystems onto the robotic platform. This remote instrument is suitable for multi-platform applications on planetary surfaces and atmospheres such as those of Mars, the Moon, Asteroids, Venus, Titan, Europa and other planets for NASA SMD and ESMD missions. This instrument is based on inelastic (Raman) and elastic (Mie-Rayleigh) light scattering remote sensing. Mineralogical and surface organic information are obtained by using the instrument in the Raman-Fluorescence mode, when the laser beam points at the surface. Atmospheric aerosols and cloud distributions are obtained by operating the instrument in the lidar mode, when the laser beam points into the atmosphere. This multi-sensing instrument is highly sensitive, light-weight, and miniature active remote sensing instrument using a 4-inch telescope and miniature spectrometer. The space-qualifiable laser transmits 20 Hz laser pulses into the surface or atmosphere during experiment. The 355 nm, 532 nm, and 1064 nm laser outputs are transmitted to the targets and backscattered signals are received from the targets. The telescope collects the return signals from the atmosphere/surface and focuses them into a 0.4 mm fiber optics cable, which is connected to the receiving optics. As part of the receiving optics, a PMT is used to detect the atmospheric return signals and ICCD is used to acquire surface return signals. Raman/Fluorescence/Lidar multi-sensing Instrument including transmitter, receiver, and power conditioning/data acquisition are all integrated onto the rover system. The instrument is demonstrated on a mobile rover that is capable of performing both teleoperated and autonomous surface operations. This combined remote instrument performs Raman and Fluorescence spectroscopy out to 15 m on the surface and provides atmospheric profiling over longer ranges ( approximately 9-km). JF - Abstracts with Programs - Geological Society of America AU - Abedin, M Nurul AU - Hibberd, J AU - Refaat, T F AU - Bradley, A T AU - Ismail, S AU - Robinson, B AU - Mau, Johnny AU - Sharma, Shiv K AU - Misra, Anupam K AU - Sandford, Sandford AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 599 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - surface properties KW - icy satellites KW - laser methods KW - Europa Satellite KW - asteroids KW - Moon KW - Venus KW - characterization KW - atmosphere KW - Mars KW - Galilean satellites KW - terrestrial planets KW - planets KW - Raman spectra KW - lidar methods KW - X-ray fluorescence spectra KW - Titan Satellite KW - spectra KW - satellites KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1371762922?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Planetary+surfaces+and+atmosphere+characterization+from+robotic+platform+using+remote+Raman%2C+fluorescence%2C+and+lidar+instrument&rft.au=Abedin%2C+M+Nurul%3BHibberd%2C+J%3BRefaat%2C+T+F%3BBradley%2C+A+T%3BIsmail%2C+S%3BRobinson%2C+B%3BMau%2C+Johnny%3BSharma%2C+Shiv+K%3BMisra%2C+Anupam+K%3BSandford%2C+Sandford%3BAnonymous&rft.aulast=Abedin&rft.aufirst=M&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=599&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-06-27 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - asteroids; atmosphere; characterization; Europa Satellite; Galilean satellites; icy satellites; instruments; laser methods; lidar methods; Mars; Moon; planets; Raman spectra; satellites; spectra; surface properties; terrestrial planets; Titan Satellite; Venus; X-ray fluorescence spectra ER - TY - JOUR T1 - The regolith of 4 Vesta; perspectives from howardite meteorites and Dawn mission observations AN - 1366813994; 2013-044983 AB - 4 Vesta is the largest asteroid with a basaltic surface, the only surviving differentiated asteroid recording igneous processes from the earliest phase of solar system history. The Dawn spacecraft is in orbit about Vesta pursuing a campaign of high resolution imaging and visible and infrared spectrometry of the surface; compositional mapping by gamma-ray and neutron spectrometry will follow. Vesta is heavily cratered with a surface covered by impact debris, a regolith. One important goal of the Dawn mission is to develop an understanding of regolith processes that are affecting this surface debris. Regolith characteristics are a record of interaction with the environment (e.g., impactors, dust, solar wind, galactic cosmic-rays) and give evidence of surface processes (down-gravity movement, etc.). Regolith mineralogy and composition reflect the local bedrock, with influences from regional and global mixing. Understanding regolith processes will aid in determining the lithology of underlying crust. Vesta is most likely the parent asteroid of the howardite, eucrite and diogenite meteorites. Eucrites are intrusive and extrusive mafic rocks composed mostly of ferroan low-Ca clinopyroxene and calcic plagioclase, while diogenites are cumulate magnesian orthopyroxenites. Magmatism occurred within a few million years of the formation of the solar system and then ceased. Impacts into the igneous crust produced the howardites--polymict breccias composed of mineral and lithic debris derived mostly from eucrites and diogenites. Some howardites are true regolith breccias formed by lithification of extensively impact-gardened surface debris. However, howardites have a number of significant petrologic and compositional differences from mature lunar regolith breccias and soils reflecting the different environment around Vesta compared to that at 1 AU. The most significant differences are the higher impactor flux with a lower mean impact velocity and the lower gravity. As a result, regolith processes on Vesta differ in detail from those on the Moon. Laboratory study of howardites and orbital investigation of Vesta will allow for development of robust models of regolith formation on hand sample to multi-kilometer scales. JF - Abstracts with Programs - Geological Society of America AU - Mittlefehldt, David W AU - Blewett, David T AU - Denevi, Brett W AU - De Sanctis, Maria Cristina AU - Jaumann, Ralf AU - Keller, H Uwe AU - Nathues, Andreas AU - Pieters, Carle M AU - Raymond, Carol A AU - Zuber, Maria T AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 574 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - processes KW - bedrock KW - stony meteorites KW - asteroids KW - Vesta Asteroid KW - mafic composition KW - mapping KW - Dawn Mission KW - achondrites KW - observations KW - meteorites KW - mineral composition KW - howardite KW - mixing KW - basaltic composition KW - regolith KW - crust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1366813994?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=The+regolith+of+4+Vesta%3B+perspectives+from+howardite+meteorites+and+Dawn+mission+observations&rft.au=Mittlefehldt%2C+David+W%3BBlewett%2C+David+T%3BDenevi%2C+Brett+W%3BDe+Sanctis%2C+Maria+Cristina%3BJaumann%2C+Ralf%3BKeller%2C+H+Uwe%3BNathues%2C+Andreas%3BPieters%2C+Carle+M%3BRaymond%2C+Carol+A%3BZuber%2C+Maria+T%3BAnonymous&rft.aulast=Mittlefehldt&rft.aufirst=David&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=574&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-10-17 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - achondrites; asteroids; basaltic composition; bedrock; crust; Dawn Mission; howardite; mafic composition; mapping; meteorites; mineral composition; mixing; observations; processes; regolith; stony meteorites; Vesta Asteroid ER - TY - JOUR T1 - Imaging Asteroid 4 Vesta using the framing camera AN - 1366813934; 2013-044977 AB - The Framing Camera (FC) onboard the Dawn spacecraft serves a dual purpose. Next to its central role as a prime science instrument it is also used for the complex navigation of the ion drive spacecraft. The CCD detector with 1024 by 1024 pixels provides the stability for a multiyear mission and its high requirements of photometric accuracy over the wavelength band from 400 to 1000 nm covered by 7 band-pass filters. Vesta will be observed from 3 orbit stages with image scales of 227, 63, and 17 m/px, respectively. The mapping of Vesta's surface with medium resolution will be only completed during the exit phase when the north pole will illuminated. A detailed pointing strategy will cover the surface at least twice at similar phase angles to provide stereo views for reconstruction of the topography. During approach the phase function of Vesta was determined over a range of angles not accessible from Earth. This is the first step in deriving the photometric function of the surface. Combining the topography based on stereo tie points with the photometry in an iterative procedure will disclose details of the surface morphology at considerably smaller scales than the pixel scale. The 7 color filters are well positioned to provide information on the spectral slope in the visible, the depth of the strong pyroxene absorption band, and their variability over the surface. Cross calibration with the VIR spectrometer that extends into the near IR will provide detailed maps of Vesta's surface mineralogy and physical properties. Georeferncing all these observation will result in a coherent and unique data set. During Dawn's approach and capture FC has already demonstrated its performance. The strong variegation observed by the Hubble Space Telescope can now be correlated with surface units and features. We will report on results obtained from images taken during survey mode covering the whole illuminated surface. Vesta is a planet-like differentiated body, but its surface gravity and escape velocity are comparable to those of other asteroids and hence much smaller than those of the inner planets or the Moon. The comparison with 21 Lutetia, recently passed by the Rosetta comet rendezvous mission, will reveal the effects of body differentiation on surface cratering and morphology and will at the same time improve our understanding of Vesta's interior. JF - Abstracts with Programs - Geological Society of America AU - Keller, H Uwe AU - Nathues, Andreas AU - Coradini, Angioletta AU - Jaumann, Ralf AU - Jorda, Laurent AU - Li, Jian-Yang AU - Mittlefehldt, David W AU - Mottola, Stefano AU - Raymond, Carol A AU - Schroeder, Stefan E AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 573 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - surface properties KW - imagery KW - asteroids KW - Vesta Asteroid KW - passband filters KW - mapping KW - pixels KW - Dawn Mission KW - physical properties KW - mineral composition KW - Hubble Space Telescope KW - accuracy KW - instruments KW - cameras KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1366813934?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Imaging+Asteroid+4+Vesta+using+the+framing+camera&rft.au=Keller%2C+H+Uwe%3BNathues%2C+Andreas%3BCoradini%2C+Angioletta%3BJaumann%2C+Ralf%3BJorda%2C+Laurent%3BLi%2C+Jian-Yang%3BMittlefehldt%2C+David+W%3BMottola%2C+Stefano%3BRaymond%2C+Carol+A%3BSchroeder%2C+Stefan+E%3BAnonymous&rft.aulast=Keller&rft.aufirst=H&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=573&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-10-17 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - accuracy; asteroids; cameras; Dawn Mission; Hubble Space Telescope; imagery; instruments; mapping; mineral composition; passband filters; physical properties; pixels; surface properties; Vesta Asteroid ER - TY - JOUR T1 - The major moons of Uranus and Neptune AN - 1356359337; 2013-043679 AB - In this talk we will review what is known of the geology of the 5 largest Uranian satellites (Oberon, Titania, Umbriel, Ariel, and Miranda) and Neptune's large satellite Triton. Virtually everything we know of these worlds comes from the 1986 and 1989 encounters of Voyager 2. These 5 Uranian satellites fall within the same size and density range as the middle sized icy satellites of Saturn. Cassini observations of these Saturnain satellites inform our evolving understanding of the major Uranian satellites. Some, such as Miranda and Ariel, show extensive modification of their surfaces by endogenic processes, which may be analogous to processes operating on Saturn's moons such as Enceladus and Dione. Triton, Neptune's only large satellite, is a captured KBO, whose post-capture orbital evolution has powered, and may still be driving, massive resurfacing. Triton has the best-known examples of cryo-volcanism in the solar system. Triton also sports nitrogen geysers, which may be energized by solar heating. Triton is approximately the same size and density as Pluto, and may be our best preview of Pluto prior to the arrival of New Horizons in 2015. JF - Abstracts with Programs - Geological Society of America AU - Moore, Jeffrey AU - McKinnon, William B AU - Pappalardo, Robert T AU - Schenk, Paul M AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 486 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - Miranda Satellite KW - icy satellites KW - Triton Satellite KW - Umbriel Satellite KW - Oberon Satellite KW - density KW - size KW - giant planets KW - planets KW - Uranus KW - Titania Satellite KW - outer planets KW - Neptune KW - Ariel Satellite KW - satellites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1356359337?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=The+major+moons+of+Uranus+and+Neptune&rft.au=Moore%2C+Jeffrey%3BMcKinnon%2C+William+B%3BPappalardo%2C+Robert+T%3BSchenk%2C+Paul+M%3BAnonymous&rft.aulast=Moore&rft.aufirst=Jeffrey&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=486&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-05-30 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Ariel Satellite; density; giant planets; icy satellites; Miranda Satellite; Neptune; Oberon Satellite; outer planets; planets; satellites; size; Titania Satellite; Triton Satellite; Umbriel Satellite; Uranus ER - TY - JOUR T1 - The Pluto system AN - 1356359326; 2013-043678 AB - Pluto, its large satellite Charon, and its two small satellites Nix and Hydra, represent the first trans-Neptunian Kuiper Belt objects populating the outer-most solar system beyond the gas giant planets to be studied in detail from a spacecraft (New Horizons). A complete picture of the solar nebula and solar system formation cannot be confidently formulated until representatives of this group of bodies at the edge of solar space have been examined. The Pluto system is composed of unique, lunar- and intermediate-sized objects that can tell us much about how objects with volatile icy compositions evolve. Currently our understanding of the Pluto system is limited to their orbital characteristics, bulk geophysical properties (i.e., size and density), and atmospheric and surface characteristics (e.g., albedo and surface composition). Modeling of the interior suggests that geologic activity may have been significant to some degree, and observations of frost on the surface could imply the need for a geologic reservoir for the replenishment of these phases. These putative indicators of Pluto's geologic history are inconclusive and unspecific, however. Detailed examination of Pluto's geologic record is the only plausible means of bridging the gap between theory and observation. In this talk I will examine the potential importance of these tentative indications of geologic activity and how specific spacecraft observations have been designed and used to constrain the Pluto system's geologic history. JF - Abstracts with Programs - Geological Society of America AU - Moore, Jeffrey AU - Stern, S Alan AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 486 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - Hydra Satellite KW - Kuiper Belt KW - Nix Satellite KW - Charon KW - Pluto KW - dwarf planets KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1356359326?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=The+Pluto+system&rft.au=Moore%2C+Jeffrey%3BStern%2C+S+Alan%3BAnonymous&rft.aulast=Moore&rft.aufirst=Jeffrey&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=486&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-05-30 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Charon; dwarf planets; Hydra Satellite; Kuiper Belt; Nix Satellite; Pluto ER - TY - JOUR T1 - Feasibility study of a limited-scale lunar polar volatiles prospecting mission AN - 1356356148; 2013-041916 AB - The recent Lunar Crater Observing and Sensing Satellite (LCROSS) mission has provided evidence for significant amounts of cold-trapped volatiles in Cabeus crater near the Moon's south pole. Moreover, LRO/Diviner measurements of extremely cold lunar polar surface temperatures imply that volatiles can be stable outside of areas of strict permanent shadow. These discoveries hint at potentially extensive near-surface deposits at both lunar poles. The physical state, composition and distribution of these volatiles are key scientific issues that relate to source and emplacement mechanisms. These issues are also important for enabling lunar in situ resource utilization (ISRU). An assessment of the feasibility of cold-trapped volatile ISRU requires a priori information regarding the location, form, quantity, and potential for extraction of available resources. A small robotic mission to a persistently shadowed but briefly sunlit location with suitable environmental conditions (e.g., short periods of oblique sunlight and subsurface cryogenic temperatures which permit volatile trapping) can help answer these scientific and exploration questions. Key parameters must be defined in order to identify suitable landing sites, plan surface operations, and achieve mission success. To address this need, we have conducted an initial study for a lunar polar volatile prospecting mission, assuming the use of a solar-powered robotic lander and rover. Here we present the mission concept, goals and objectives, and landing site selection analysis for a short-duration, landed, solar-powered mission to a volatile-rich site. JF - Abstracts with Programs - Geological Society of America AU - Elphic, Richard C AU - Colaprete, Anthony AU - Heldmann, J AU - Beyer, Ross AU - Fong, Terry AU - Cockrell, James AU - Pedersen, Liam AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 412 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - volatiles KW - Moon KW - Lunar Crater Observation and Sensing Satellite Mission KW - feasibility studies KW - remote sensing KW - exploration KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1356356148?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Feasibility+study+of+a+limited-scale+lunar+polar+volatiles+prospecting+mission&rft.au=Elphic%2C+Richard+C%3BColaprete%2C+Anthony%3BHeldmann%2C+J%3BBeyer%2C+Ross%3BFong%2C+Terry%3BCockrell%2C+James%3BPedersen%2C+Liam%3BAnonymous&rft.aulast=Elphic&rft.aufirst=Richard&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=412&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-10-17 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - exploration; feasibility studies; Lunar Crater Observation and Sensing Satellite Mission; Moon; remote sensing; volatiles ER - TY - JOUR T1 - MEPAG recommendations for a 2018 Mars sample return caching lander-sample types, number, and sizes AN - 1356356125; 2013-041914 AB - The return to Earth of geological & atmospheric samples from the surface of Mars is among the highest priority objectives of planetary science. The MEPAG Mars Sample Return (MSR) End-to-End International Science Analysis Group (MEPAG E2E-iSAG) was chartered to propose scientific objectives & priorities for returned sample science, & to map out the implications of these priorities, including for the proposed joint ESA-NASA 2018 mission that would be tasked with the crucial job of collecting & caching the samples. The E2E-iSAG identified four overarching scientific aims that relate to understanding: A) the potential for life & its pre-biotic context, B) the geologic processes that have affected the martian surface, C) planetary evolution of Mars & its atmosphere, D) potential for future human exploration. The types of samples deemed most likely to achieve the science objectives are, in priority order: 1A. Subaqueous or hydrothermal sediments 1B. Hydrothermally altered rocks or low temperature fluid-altered rocks (equal priority) 2. Unaltered igneous rocks 3. Regolith, including airfall dust 4. Present-day atmosphere & samples of sedimentary-igneous rocks containing ancient trapped atmosphere Collection of geologically well-characterized sample suites would add considerable value to interpretations of all collected rocks. To achieve this, the total number of rock samples should be about 30-40. In order to evaluate the size of individual samples required to meet the science objectives, the E2E-iSAG reviewed the analytical methods that would likely be applied to the returned samples by preliminary examination teams, for planetary protection (i.e., life detection, biohazard assessment) and, after distribution, by individual investigators. It was concluded that sample size should be sufficient to perform all high-priority analyses in triplicate. In keeping with long-established curatorial practice of extraterrestrial material, at least 40% by mass of each sample should be preserved to support future scientific investigations. Samples of 15-16 grams are considered optimal. The total mass of returned rocks, soils, blanks & standards should be approximately 500 grams. Atmospheric gas samples should be the equivalent of 50 cm (super 3) at 20 times Mars ambient atmospheric pressure. JF - Abstracts with Programs - Geological Society of America AU - Allen, Carlton C AU - Sephton, Mark AU - McLennan, Scott M AU - Beaty, David W AU - Boston, Penny AU - Grady, Monica AU - Heber, Veronika AU - Herd, Chris AU - Ruff, Steven W AU - Symes, Steve AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 411 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - terrestrial planets KW - planets KW - technology KW - sampling KW - MEPAG KW - atmosphere KW - Mars KW - properties KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1356356125?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=MEPAG+recommendations+for+a+2018+Mars+sample+return+caching+lander-sample+types%2C+number%2C+and+sizes&rft.au=Allen%2C+Carlton+C%3BSephton%2C+Mark%3BMcLennan%2C+Scott+M%3BBeaty%2C+David+W%3BBoston%2C+Penny%3BGrady%2C+Monica%3BHeber%2C+Veronika%3BHerd%2C+Chris%3BRuff%2C+Steven+W%3BSymes%2C+Steve%3BAnonymous&rft.aulast=Allen&rft.aufirst=Carlton&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=411&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-05-30 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - atmosphere; instruments; Mars; MEPAG; planets; properties; sampling; technology; terrestrial planets ER - TY - JOUR T1 - Natural wetlands; characterizing vegetation and global inundation dynamics for methane modeling AN - 1351597409; 2013-039489 AB - Natural wetlands are the world's largest source of methane to the atmosphere. Boreal wetlands, dominated by flooded and non-flooded peatlands, account for approximately 50% of global wetland area and approximately 30% of wetland methane emission. Tropical wetlands, composed primarily of forests inundated via riverine flooding, account for approximately 40% of the world's wetland area and two-thirds of emissions. Understanding climate-sensitive processes prevailing in the world's natural wetlands is crucial to understanding and predicting their biogeochemical responses to interannual and longer-term climate variations. The wide spectrum of vegetation, hydrological regime, soils, and seasonality means that no single system describing local and regional wetland environments encompasses their global diversity particularly with regard to methane-relevant information. This undermines efforts to characterize and model wetlands and their methane emissions under current and future climates. In addition, application of methane models historically required externally-defined wetland data sets due to the continued challenge of modeling the distribution of wetlands themselves. We report on the integration of monthly, decadal satellite-derived data on inundation seasonality and extent with a global wetland data set characterizing vegetation and other methane-relevant environmental information. We report results in the framework of a newly-developed, methane-centric wetland-classification system jointly applicable to wetland distributions and to wetland sites represented in the methane-flux literature. We propose applications of the new satellite-augmented data set to modeling methane emissions, and to guiding the development of models of wetland distribution. JF - Abstracts with Programs - Geological Society of America AU - Matthews, Elaine AU - Prigent, Catherine AU - Papa, Fabrice AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 557 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - processes KW - terrestrial environment KW - methane KW - biochemistry KW - characterization KW - aliphatic hydrocarbons KW - atmosphere KW - alkanes KW - vegetation KW - climate change KW - boreal environment KW - models KW - organic compounds KW - wetlands KW - classification KW - hydrocarbons KW - geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1351597409?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Natural+wetlands%3B+characterizing+vegetation+and+global+inundation+dynamics+for+methane+modeling&rft.au=Matthews%2C+Elaine%3BPrigent%2C+Catherine%3BPapa%2C+Fabrice%3BAnonymous&rft.aulast=Matthews&rft.aufirst=Elaine&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=557&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-05-16 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; atmosphere; biochemistry; boreal environment; characterization; classification; climate change; geochemistry; hydrocarbons; methane; models; organic compounds; processes; terrestrial environment; vegetation; wetlands ER - TY - JOUR T1 - Waiting for O2; the role of hydrogen escape in the oxidation of Earth AN - 1347456096; 2013-037510 AB - Oxygenic photosynthesis appears to be a necessary condition for the creation of an oxygen-rich atmosphere like Earth's. But available geological and geochemical evidence suggest that at least 200 Myr, and possibly as much as 800 Myr, elapsed between the advent of oxygenic photosynthesis and the establishment of an oxygen atmosphere. The interregnum implies that at least one other necessary condition for O2 needed to be met. Here we argue that the second condition was the oxidation of the surface and crust to the point where free O2 became more stable than competing reduced gases such as CH4, and that the cause of Earth's surface oxidation is the same cause as it is for other planets with oxidized surfaces: hydrogen escape to space. The duration of the interregnum was determined by the rate of hydrogen escape and by the size of the reduced reservoir that needed to be oxidized before O2 became favored. JF - Abstracts with Programs - Geological Society of America AU - Zahnle, Kevin AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 548 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - photosynthesis KW - methane KW - oxygen KW - paleoatmosphere KW - oxidation KW - photochemistry KW - aliphatic hydrocarbons KW - alkanes KW - organic compounds KW - hydrogen KW - hydrocarbons KW - crust KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1347456096?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Waiting+for+O2%3B+the+role+of+hydrogen+escape+in+the+oxidation+of+Earth&rft.au=Zahnle%2C+Kevin%3BAnonymous&rft.aulast=Zahnle&rft.aufirst=Kevin&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=548&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-05-02 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; crust; hydrocarbons; hydrogen; methane; organic compounds; oxidation; oxygen; paleoatmosphere; photochemistry; photosynthesis ER - TY - JOUR T1 - Radioactive elements measured on Mercury by Messenger; implications for the planet's formation and evolution AN - 1328502890; 2013-032855 AB - Measurements of the surface composition of Mercury offer a special window into the epoch of planet formation in the inner solar system. Mercury likely preserves a more complete record of early crustal formation than do Venus, Earth, or Mars, each of which experienced extensive and prolonged resurfacing and near-surface alteration since earliest crustal formation. The MErcury Surface, Space ENvironment, GEochemisty, and Ranging (MESSENGER) spacecraft, inserted into orbit about Mercury on 18 March 2011, carries a suite of instruments designed for elemental and mineralogical remote sensing. We report measured surface abundances of radioactive elements on Mercury and their implications for hypotheses regarding the planet's formation and thermal evolution. The average surface abundances of radioactive elements over the region of Mercury sampled by the Gamma-Ray Spectrometer are 1150 + or - 220 ppm K, 220 + or - 60 ppb Th, and 90 + or - 20 ppb U. Ratios of the moderately volatile incompatible element K to the refractory incompatible elements Th and U provide insights into the volatile inventory of planetary bodies. The measured K/Th ratio for Mercury (5200 + or - 1800) is comparable to values for the other terrestrial planets. By contrast, the lunar K/Th value (360) is an order of magnitude lower, indicative of the depletion of lunar volatiles relative to Earth. Mercury's K/Th ratio, combined with the high abundance of the volatile element sulfur measured by MESSENGER's X-Ray Spectrometer, indicates that the planet has a volatile inventory similar to those of the other terrestrial planets. Hypotheses proposed to explain the unusually high ratio of metal to silicate on Mercury also carry predictions for the ratios of volatile to refractory elements that can be tested against the K, Th and U abundances measured by MESSENGER. The abundance of the moderately volatile element K, relative to Th and U, is inconsistent with physical models for the formation of Mercury requiring extreme heating of the planet or its precursors and supports formation from relatively volatile-enriched material comparable to known chondritic meteorites. Abundances of K, Th, and U indicate that heat production declined substantially in the past 4 Gy, consistent with widespread volcanism near the end of late heavy bombardment and only limited volcanic activity since. JF - Abstracts with Programs - Geological Society of America AU - Evans, Larry G AU - Peplowski, Patrick AU - Hauck, Steven A, II AU - McCoy, Timothy J AU - Boynton, William V AU - Goldsten, John O AU - Hamara, Dave K AU - Rhodes, Edgar A AU - Sprague, Ann L AU - Solomon, Sean C AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 357 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - technology KW - MESSENGER Program KW - isotopes KW - alkali metals KW - terrestrial planets KW - planets KW - radioactive isotopes KW - metals KW - Mercury Planet KW - potassium KW - thorium KW - uranium KW - actinides KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1328502890?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Radioactive+elements+measured+on+Mercury+by+Messenger%3B+implications+for+the+planet%27s+formation+and+evolution&rft.au=Evans%2C+Larry+G%3BPeplowski%2C+Patrick%3BHauck%2C+Steven+A%2C+II%3BMcCoy%2C+Timothy+J%3BBoynton%2C+William+V%3BGoldsten%2C+John+O%3BHamara%2C+Dave+K%3BRhodes%2C+Edgar+A%3BSprague%2C+Ann+L%3BSolomon%2C+Sean+C%3BAnonymous&rft.aulast=Evans&rft.aufirst=Larry&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=357&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-07-18 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; alkali metals; instruments; isotopes; Mercury Planet; MESSENGER Program; metals; planets; potassium; radioactive isotopes; technology; terrestrial planets; thorium; uranium ER - TY - JOUR T1 - The geophysics of Mercury; Messenger's view from orbit AN - 1328502801; 2013-032853 AB - On March 18, 2011, MESSENGER entered an elliptical, near-polar orbit about Mercury, becoming the first spacecraft to orbit that planet. As part of MESSENGER's geophysics investigation, the Mercury Laser Altimeter (MLA) is ranging to the surface of Mercury when the spacecraft slant range is less than 1500 km, largely over the northern hemisphere. MLA profiles have sampled a variety of landforms, including volcanic plains, tectonic structures, and impact craters and basins as well as longer-wavelength variations in topography. MLA has also profiled several polar impact craters previously identified by Earth-based observations as hosting radar-bright deposits in their interiors. Tracking of radio signal transmissions from MESSENGER's low- and high-gain antennas is yielding new information on the gravity field of Mercury. Regional variations in Mercury's gravity field, together with topographic information, provide important constraints on mechanisms of topographic compensation. Importantly, MESSENGER is also improving estimates of the second-degree spherical harmonic gravity-field coefficients C (sub 20) and C (sub 22) . Prior to MESSENGER orbital operations, C (sub 20) was the least constrained parameter necessary for determining the size of Mercury's core. Ultimately, the determination of the planet's normalized polar moment of inertia (C/MR (super 2) ), where M and R are Mercury's mass and radius, and the ratio of the polar moment of inertia of the mantle and crust to the planet's polar moment of inertia (C (sub m) /C) provide crucial constraints on Mercury's internal structure. Observations by MESSENGER's Magnetometer indicate a dipole-dominated planetary magnetic field, centered on the spin axis, with a tilt of less than 3 degrees and a northward displacement along its axis of 0.2 R. These observations are consistent with a core dynamo as the origin for Mercury's internal magnetic field, albeit one with an unusual geometry or boundary conditions. JF - Abstracts with Programs - Geological Society of America AU - Hauck, Steven A, II AU - Zuber, Maria T AU - Smith, David E AU - Johnson, Catherine L AU - Phillips, Roger J AU - Lemoine, Frank G AU - Margot, Jean-Luc AU - Neumann, Gregory A AU - Peale, Stanton J AU - Solomon, Sean C AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 357 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - terrestrial planets KW - planets KW - technology KW - MESSENGER Program KW - Mercury Planet KW - properties KW - instruments KW - exploration KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1328502801?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=The+geophysics+of+Mercury%3B+Messenger%27s+view+from+orbit&rft.au=Hauck%2C+Steven+A%2C+II%3BZuber%2C+Maria+T%3BSmith%2C+David+E%3BJohnson%2C+Catherine+L%3BPhillips%2C+Roger+J%3BLemoine%2C+Frank+G%3BMargot%2C+Jean-Luc%3BNeumann%2C+Gregory+A%3BPeale%2C+Stanton+J%3BSolomon%2C+Sean+C%3BAnonymous&rft.aulast=Hauck&rft.aufirst=Steven&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=357&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-07-18 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - exploration; instruments; Mercury Planet; MESSENGER Program; planets; properties; technology; terrestrial planets ER - TY - JOUR T1 - Equilibrium iron isotope fractionation between aqueous Fe(II) and model Archean ocean Fe-Si coprecipitates AN - 1244677290; 2013-006550 AB - Iron isotope fractionation was investigated between aqueous Fe(II) (Fe(II) (sub aq) ) and two amorphous Fe(III) oxide-Si coprecipitates in a complex solution that simulated Archean marine conditions. The equilibrium isotope fractionation between Fe(II) (sub aq) and Fe(III) coprecipitates in (super 56) Fe/ (super 54) Fe, as determined by the three-isotope method, was -3.51 + or - 0.20(2Sigma )ppm and -3.99 + or - 0.17(2Sigma )ppm for coprecipitates that had Fe:Si molar ratios of 1:1.8 and 1:3.1, respectively. The equilibrium isotope fractionation factor between Fe(II) (sub aq) and Fe(III)-Si coprecipitates corresponds with the local structure of iron, as revealed by prior spectroscopic studies. The kinetics of isotopic exchange was controlled by movement of Fe(II) and Si, where sorption of Fe(II) from aqueous to solid phase facilitates atom exchange, but sorption of Si hinders isotopic exchange through blockage of reactive surface sites. Although Fe(II)-Fe(III) isotopic exchange rates were a function of solid and solution compositions in the current study, in all cases they were much higher than that determined in previous studies of aqueous Fe(III) and ferrihydrite interaction, highlighting the importance of electron exchange in promoting Fe atom exchange. When compared to analogous microbial reduction experiments, isotopic exchange rates are faster in the biological experiments, likely due to promotion of atom exchange by the solid-phase Fe(II) produced in the biological experiments. These results, when mass-balance relations are also considered, provide support for the potential role of microbial iron reduction in producing at least some of the large Fe isotope excursions in Precambrian marine sedimentary rocks. JF - Abstracts with Programs - Geological Society of America AU - Wu, Lingling AU - Percak-Dennett, Elizabeth M AU - Beard, Brian L AU - Roden, Eric E AU - Johnson, Clark M AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 327 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - silicates KW - isotope fractionation KW - Precambrian KW - isotopes KW - isotope ratios KW - paleo-oceanography KW - stable isotopes KW - iron KW - models KW - precipitation KW - metals KW - marine environment KW - Archean KW - Fe-56/Fe-54 KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1244677290?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Equilibrium+iron+isotope+fractionation+between+aqueous+Fe%28II%29+and+model+Archean+ocean+Fe-Si+coprecipitates&rft.au=Wu%2C+Lingling%3BPercak-Dennett%2C+Elizabeth+M%3BBeard%2C+Brian+L%3BRoden%2C+Eric+E%3BJohnson%2C+Clark+M%3BAnonymous&rft.aulast=Wu&rft.aufirst=Lingling&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=327&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2012-12-27 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Archean; Fe-56/Fe-54; iron; isotope fractionation; isotope ratios; isotopes; marine environment; metals; models; paleo-oceanography; Precambrian; precipitation; silicates; stable isotopes ER - TY - JOUR T1 - Modeling the effect of dissolved hydrogen sulfide on Mg2+-water complex on dolomite {104} surface AN - 1244668255; 2013-006556 AB - It has been realized that the dolomite problem lie in the kinetic barriers at low temperature that hinder the incorporation of Mg (super 2+) ions into the calcite structure because of strong surface Mg (super 2+) -water bond. Ca-rich dolomite has been synthesized at low temperature under laboratory conditions by using sulfate-reducing bacteria (Vasconcelos et al., 1995) and dissolved hydrogen sulfide (Zhang et al., 2010). However, the exact role of dissolved sulfide in overcoming the kinetic barrier is uncertain. On one hand, it has been proposed that dissolved hydrogen sulfide could be more strongly bonded to the dolomite surface than water, thus repulsing the water molecules from the surface. Our experiment result also shows that hydrogen sulfide can be adsorbed on the calcite and dolomite surface. On the other hand, it is possible that dissolved hydrogen sulfide with a low dielectric constant on dolomite surface could lower the dielectric constant of the surface solution and thus weakens the hydration bond between water and surface Mg (super 2+) . In order to test the hypothesis that dissolved hydrogen sulfide lowers the energy barrier of dehydration of surface Mg (super 2+) -water complex, quantum mechanical calculations based on the density functional theory (DFT) rather than empirically derived rules were carried out. This approach is efficiently implemented in the Vienna Ab Initio Simulation Package (VASP) which was used in this study. The system was relaxed using both the static energy minimization scheme and ab initio molecular simulations performed at 10K. At the first step, the adsorptions of a monolayer of water, HS (super -) , H (sub 2) S on dolomite {104} surface that is the main cleavage plane and crystal surfaces of dolomite were calculated respectively. Our results show that H (sub 2) S is more favorably bound to the surface than water. The binding between HS (super -) itself in vacuum is much stronger than the HS (super -) -surface interaction. The effect of HS (super -) and H (sub 2) S on the interfacial water structure and on the bond strength was calculated in the liquid water-hydrogen sulfide solution, in which HS (super -) ions or H (sub 2) S molecules are in the vicinities of Mg (super 2+) -water complex. The bulk water structure was calculated in molecular simulations using LAMMPS package initially and was relaxed in VASP eventually. JF - Abstracts with Programs - Geological Society of America AU - Shen, Zhizhang AU - Liu, Yun AU - Zhang, Fangfu AU - Kemp, Joshua AU - Szlufarska, Izabela AU - Xu, Huifang AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 328 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - models KW - dolomite KW - alkaline earth metals KW - magnesium KW - metals KW - hydrogen sulfide KW - simulation KW - geochemistry KW - carbonates KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1244668255?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Modeling+the+effect+of+dissolved+hydrogen+sulfide+on+Mg2%2B-water+complex+on+dolomite+%7B104%7D+surface&rft.au=Shen%2C+Zhizhang%3BLiu%2C+Yun%3BZhang%2C+Fangfu%3BKemp%2C+Joshua%3BSzlufarska%2C+Izabela%3BXu%2C+Huifang%3BAnonymous&rft.aulast=Shen&rft.aufirst=Zhizhang&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=328&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2012-12-27 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkaline earth metals; carbonates; dolomite; geochemistry; hydrogen sulfide; magnesium; metals; models; simulation ER - TY - JOUR T1 - Clinical profile, intensive care unit course, and outcome of patients admitted in intensive care unit with dengue AN - 1033245345; 21737238 AB - The purpose of the study was to assess the clinical profile and course of dengue patients admitted to the intensive care unit (ICU) and to identify factors related to poor outcome. All patients with dengue admitted to ICU over 2.5 years were included prospectively. Severity of illness was assessed by the Acute Physiology and Chronic Health Evaluation (APACHE) II score, and organ failure was determined by the Sequential Organ Failure Assessment score. Primary outcome measure was 28-day mortality. Logistic regression analysis was performed to identify factors predicting mortality. Data from 198 patients were analyzed. Mean age was 39.56 ± 17.1 years, and 61.1% were male. The commonest complaints were fever (96%) and rash (37.9%). Mean admission APACHE II and Sequential Organ Failure Assessment scores were 7.52 ± 7.8 and 4.52 ± 3.4, respectively. The commonest organ failure was coagulation (43.4%) followed by respiratory failure (13.1%). Vasopressors were required by 11.6%; and dialysis and mechanical ventilation were required by 7.6% and 9.1%, respectively. Mortality was 12 (6.1%); and on multivariate analysis, APACHE II score (odds ratio, 1.781; 95% confidence interval, 0.967-3.281; P = .048) could independently predict mortality. Patients with dengue fever may require ICU admission for organ failure. Outcome is good if appropriate aggressive care and organ support are instituted. Admission APACHE II score may predict patients at higher risk of death. JF - Journal of Critical Care AU - Juneja, Deven AU - Nasa, Prashant AU - Singh, Omender AU - Javeri, Yash AU - Uniyal, Bhupesh AU - Dang, Rohit Y1 - 2011/10// PY - 2011 DA - Oct 2011 SP - 449 EP - 52 CY - Philadelphia PB - Elsevier Limited VL - 26 IS - 5 SN - 08839441 KW - Medical Sciences--Orthopedics And Traumatology KW - Dengue infection KW - Epidemiology KW - Intensive care KW - Fatalities KW - Mortality KW - Older people KW - Hospitals KW - Failure KW - Statistical analysis KW - Blood platelets KW - Fever KW - Confidence intervals KW - Illnesses KW - Multivariate analysis KW - Dengue fever KW - India KW - Young Adult KW - India -- epidemiology KW - Humans KW - Dengue -- mortality KW - Multiple Organ Failure -- therapy KW - Dengue -- complications KW - APACHE KW - Prospective Studies KW - Risk Factors KW - Adult KW - Treatment Outcome KW - Follow-Up Studies KW - Middle Aged KW - Multiple Organ Failure -- mortality KW - Female KW - Male KW - Severity of Illness Index KW - Intensive Care Units -- statistics & numerical data KW - Hospital Mortality KW - Multiple Organ Failure -- virology KW - Dengue -- therapy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1033245345?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthcompleteshell&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Critical+Care&rft.atitle=Clinical+profile%2C+intensive+care+unit+course%2C+and+outcome+of+patients+admitted+in+intensive+care+unit+with+dengue&rft.au=Juneja%2C+Deven%3BNasa%2C+Prashant%3BSingh%2C+Omender%3BJaveri%2C+Yash%3BUniyal%2C+Bhupesh%3BDang%2C+Rohit&rft.aulast=Juneja&rft.aufirst=Deven&rft.date=2011-10-01&rft.volume=26&rft.issue=5&rft.spage=449&rft.isbn=&rft.btitle=&rft.title=Journal+of+Critical+Care&rft.issn=08839441&rft_id=info:doi/10.1016%2Fj.jcrc.2011.05.007 LA - English DB - ProQuest Central N1 - Name - World Health Organization N1 - Copyright - © 2011 Elsevier Inc. N1 - Last updated - 2014-04-04 N1 - SubjectsTermNotLitGenreText - India DO - http://dx.doi.org/10.1016/j.jcrc.2011.05.007 ER - TY - JOUR T1 - Groundwater depletion as a global phenomenon AN - 1011394204; 2012-045363 AB - Over 2 billion people rely on groundwater as their primary source of water for domestic, industrial and agricultural needs. Ironically however, monitoring groundwater use remains challenging, even in the developed world. In the developing world, it is often non-existent. Over the last decade, advances in satellite remote sensing are providing new means for monitoring groundwater storage changes in the world's large aquifer systems. Specifically, NASA's Gravity Recovery and Climate Experiment (GRACE) mission provides monthly data on terrestrial water storage changes (i.e. for all of the snow, surface water, soil moisture and groundwater) in regions that of at least 200,000 square kilometers. Combining GRACE data with independent observations of snow, surface water and soil moisture has proven to be an effective means of characterizing groundwater storage changes. In this presentation, the GRACE-based methodology will be reviewed, and groundwater storage changes in the world's major aquifer systems will be presented. Current rates of groundwater depletion will be discussed in the context of a sustainable water future. JF - Abstracts with Programs - Geological Society of America AU - Famiglietti, James AU - Rodell, Matthew AU - Swenson, Sean AU - Chambers, Don AU - Lo, Min-Hui AU - Reager, J T AU - Voss, Katalyn AU - Rozier de Linage, Caroline AU - Ho, Stephanie AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 222 EP - 223 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - soils KW - hydrology KW - water supply KW - monitoring KW - snow cover KW - snowmelt KW - moisture KW - surface water KW - ice cover KW - GRACE KW - satellite methods KW - ground water KW - snow KW - water resources KW - remote sensing KW - meltwater KW - 21:Hydrogeology KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011394204?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Groundwater+depletion+as+a+global+phenomenon&rft.au=Famiglietti%2C+James%3BRodell%2C+Matthew%3BSwenson%2C+Sean%3BChambers%2C+Don%3BLo%2C+Min-Hui%3BReager%2C+J+T%3BVoss%2C+Katalyn%3BRozier+de+Linage%2C+Caroline%3BHo%2C+Stephanie%3BAnonymous&rft.aulast=Famiglietti&rft.aufirst=James&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=222&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ L2 - http://gsa.confex.com/gsa/2011AM/finalprogram/abstract_197480.htm LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - GRACE; ground water; hydrology; ice cover; meltwater; moisture; monitoring; remote sensing; satellite methods; snow; snow cover; snowmelt; soils; surface water; water resources; water supply ER - TY - JOUR T1 - Ancient, slowly-eroding soil preserved beneath the summit of the Greenland ice sheet AN - 1011393255; 2012-045329 AB - Cores that extend to the bed of ice sheets contain sediment-rich basal ice zones. In order to constrain better the source and character of sediment in the lower meters of the 3053-m long GISP2 ice core (the "silty ice zone"), we measured the concentration of meteoric (super 10) Be, organic carbon, and nitrogen in sediment separated from 17 core samples. The samples represent a total of 3 m of ice including an 11 cm section directly above the bed. Meteoric (super 10) Be is a cosmogenic isotope formed in the atmosphere and delivered to Earth's surface by precipitation and dry fall. It is an excellent tracer of sediment exposed to pedogenic processes; high concentrations of meteoric (super 10) Be are indicative of soil and sediment originating within several meters of Earth's surface. Organic carbon and nitrogen are also markers of soil formation. Silt in the lowermost 6.5 m of the GISP2 ice core has high concentrations of meteoric (super 10) Be (0.6 to 3.8 X 10 (super 8) atoms/g), significant percentages of organic carbon (0.3 to 1.7%), and an average C/N ratio of approximately 10, all consistent with derivation from a well-developed, cold-region soil. The highest concentrations of meteoric (super 10) Be and TOC were measured in the bottom-most ice sample. The (super 10) Be concentration is consistent with a soil inventory > 10 (super 10) atoms/cm (super 2) implying a soil exposure time > 10 (super 5) years before the soil was covered by ice. As Pleistocene interglacial periods were all short (<10 (super 4) year) and few, if any, exposed the bed under GISP2, meteoric (super 10) Be data imply the preservation of soil formed during pre-Quaternary interglacial exposure. Concentrations of meteoric (super 10) Be and total organic carbon co-vary and decrease with distance from the bed, a trend consistent with other data suggesting that the underlying soil is mixed, by ice deformation, with rock flour derived from bedrock erosion elsewhere. The GISP2 core location has likely been ice covered, with the possible exception of a short (4-7 ky) exposure at MIS 11 (Nishiizumi et al., 2006), since 2.5 Mya (Larsen et al., 1994), providing a minimum limiting age for the paleosol underlying Summit, Greenland. The continued existence of this ancient soil indicates extremely low rates of sub-ice erosion at GISP2. Survival of the soil for several million years under the Greenland Ice Sheet is consistent with the ice at Summit having been frozen to the bed for most, if not all, of the Quaternary. JF - Abstracts with Programs - Geological Society of America AU - Bierman, P AU - Corbett, Lee B AU - Finkel, Robert AU - Graly, Joseph A AU - Hughes, John AU - Lini, Andrea AU - Neumann, Thomas A AU - Rood, Dylan AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 217 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - soils KW - alkaline earth metals KW - ice cores KW - Quaternary KW - Be-10 KW - isotopes KW - erosion KW - subglacial processes KW - Arctic region KW - Greenland ice sheet KW - cosmogenic elements KW - ice sheets KW - Cenozoic KW - Greenland KW - glacial erosion KW - radioactive isotopes KW - dates KW - metals KW - absolute age KW - Pleistocene KW - glacial geology KW - beryllium KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011393255?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Ancient%2C+slowly-eroding+soil+preserved+beneath+the+summit+of+the+Greenland+ice+sheet&rft.au=Bierman%2C+P%3BCorbett%2C+Lee+B%3BFinkel%2C+Robert%3BGraly%2C+Joseph+A%3BHughes%2C+John%3BLini%2C+Andrea%3BNeumann%2C+Thomas+A%3BRood%2C+Dylan%3BAnonymous&rft.aulast=Bierman&rft.aufirst=P&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=217&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ L2 - http://gsa.confex.com/gsa/2011AM/finalprogram/abstract_194423.htm LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - absolute age; alkaline earth metals; Arctic region; Be-10; beryllium; Cenozoic; cosmogenic elements; dates; erosion; glacial erosion; glacial geology; Greenland; Greenland ice sheet; ice cores; ice sheets; isotopes; metals; Pleistocene; Quaternary; radioactive isotopes; soils; subglacial processes ER - TY - NEWS T1 - Backpack technology gains traction with astronauts AN - 894794191 JF - UPI Space Daily AU - Mike Giannone for NASA's Glenn Research Center Y1 - 2011/09/30/ PY - 2011 DA - 2011 Sep 30 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/894794191?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Backpack+technology+gains+traction+with+astronauts&rft.au=Mike+Giannone+for+NASA%27s+Glenn+Research+Center&rft.aulast=Mike+Giannone+for+NASA%27s+Glenn+Research+Center&rft.aufirst=&rft.date=2011-09-30&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-09-30 ER - TY - NEWS T1 - The Secret Lives of Solar Flares AN - 898319024 JF - UPI Space Daily AU - Dr. Tony Phillips for NASA Science News Y1 - 2011/09/27/ PY - 2011 DA - 2011 Sep 27 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898319024?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=The+Secret+Lives+of+Solar+Flares&rft.au=Dr.+Tony+Phillips+for+NASA+Science+News&rft.aulast=Dr.+Tony+Phillips+for+NASA+Science+News&rft.aufirst=&rft.date=2011-09-27&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-10-14 ER - TY - NEWS T1 - Dawn Flies Around Vesta AN - 894397019 JF - UPI Space Daily AU - Dr. Tony Phillips for NASA Science News Y1 - 2011/09/27/ PY - 2011 DA - 2011 Sep 27 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/894397019?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Dawn+Flies+Around+Vesta&rft.au=Dr.+Tony+Phillips+for+NASA+Science+News&rft.aulast=Dr.+Tony+Phillips+for+NASA+Science+News&rft.aufirst=&rft.date=2011-09-27&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-09-28 ER - TY - CPAPER T1 - Characterization of Commercially Available 50-W UFO LED Plant Lighting for Use in NASA's Habitat Demonstration Unit T2 - 2011 Annual Meeting of the American Society for Horticultural Science (ASHS 2011) AN - 1312935297; 6042144 JF - 2011 Annual Meeting of the American Society for Horticultural Science (ASHS 2011) AU - Massa, Gioia AU - Mellott, Kenneth AU - Stutte, Gary AU - Wheeler, Raymond Y1 - 2011/09/25/ PY - 2011 DA - 2011 Sep 25 KW - Habitat KW - Lighting UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312935297?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Society+for+Horticultural+Science+%28ASHS+2011%29&rft.atitle=Characterization+of+Commercially+Available+50-W+UFO+LED+Plant+Lighting+for+Use+in+NASA%27s+Habitat+Demonstration+Unit&rft.au=Massa%2C+Gioia%3BMellott%2C+Kenneth%3BStutte%2C+Gary%3BWheeler%2C+Raymond&rft.aulast=Massa&rft.aufirst=Gioia&rft.date=2011-09-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Society+for+Horticultural+Science+%28ASHS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://ashs.org/downloads/2011ASHS_Conference_abstracts.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Species and Media Testing for the VEGGIE Plant Production System for Space T2 - 2011 Annual Meeting of the American Society for Horticultural Science (ASHS 2011) AN - 1312935211; 6042142 JF - 2011 Annual Meeting of the American Society for Horticultural Science (ASHS 2011) AU - Massa, Gioia AU - Newsham, Gerard AU - Harp, Janicce AU - Stutte, Gary AU - Morrow, Robert AU - Wheeler, Raymond Y1 - 2011/09/25/ PY - 2011 DA - 2011 Sep 25 KW - plant production UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312935211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Society+for+Horticultural+Science+%28ASHS+2011%29&rft.atitle=Species+and+Media+Testing+for+the+VEGGIE+Plant+Production+System+for+Space&rft.au=Massa%2C+Gioia%3BNewsham%2C+Gerard%3BHarp%2C+Janicce%3BStutte%2C+Gary%3BMorrow%2C+Robert%3BWheeler%2C+Raymond&rft.aulast=Massa&rft.aufirst=Gioia&rft.date=2011-09-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Society+for+Horticultural+Science+%28ASHS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://ashs.org/downloads/2011ASHS_Conference_abstracts.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - NEWS T1 - GRAIL and the Mystery of the Missing Moon AN - 890387433 JF - UPI Space Daily AU - Dauna Coulter for NASA Science News Y1 - 2011/09/17/ PY - 2011 DA - 2011 Sep 17 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/890387433?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=GRAIL+and+the+Mystery+of+the+Missing+Moon&rft.au=Dauna+Coulter+for+NASA+Science+News&rft.aulast=Dauna+Coulter+for+NASA+Science+News&rft.aufirst=&rft.date=2011-09-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-09-17 ER - TY - JOUR T1 - Variability in surface BRDF at different spatial scales (30m-500m) over a mixed agricultural landscape as retrieved from airborne and satellite spectral measurements AN - 1671354178; 15092896 AB - Over the past decade, the role of multiangle remote sensing has been central to the development of algorithms for the retrieval of global land surface properties including models of the bidirectional reflectance distribution function (BRDF), albedo, land cover/dynamics, burned area extent, as well as other key surface biophysical quantities impacted by the anisotropic reflectance characteristics of vegetation. In this study, a new retrieval strategy for fine-to-moderate resolution multiangle observations was developed, based on the operational sequence used to retrieve the Moderate Resolution Imaging Spectroradiometer (MODIS) Collection 5 reflectance and BRDF/albedo products. The algorithm makes use of a semiempirical kernel-driven bidirectional reflectance model to provide estimates of intrinsic albedo (i.e., directional-hemispherical reflectance and bihemispherical reflectance), model parameters describing the BRDF, and extensive quality assurance information. The new retrieval strategy was applied to NASA's Cloud Absorption Radiometer (CAR) data acquired during the 2007 Cloud and Land Surface Interaction Campaign (CLASIC) over the well-instrumented Atmospheric Radiation Measurement Program (ARM) Southern Great Plains (SGP) Cloud and Radiation Testbed (CART) site in Oklahoma, USA. For the case analyzed, we obtained ~1.6million individual surface bidirectional reflectance factor (BRF) retrievals, from nadir to 75 degree off-nadir, and at spatial resolutions ranging from 3m to 500m. This unique dataset was used to examine the interaction of the spatial and angular characteristics of a mixed agricultural landscape; and provided the basis for detailed assessments of: (1) the use of a land cover type-specific a priori knowledge in kernel-driven BRDF model inversions; (2) the interaction between surface reflectance anisotropy and instrument spatial resolution; and (3) the uncertainties that arise when sub-pixel differences in the BRDF are aggregated to a moderate resolution satellite pixel. Results offer empirical evidence concerning the influence of scale and spatial heterogeneity in kernel-driven BRDF models; providing potential new insights into the behavior and characteristics of different surface radiative properties related to land/use cover change and vegetation structure. JF - Remote Sensing of Environment AU - Roman, Miguel O AU - Gatebe, Charles K AU - Schaaf, Crystal B AU - Poudyal, Rajesh AU - Wang, Zhuosen AU - King, Michael D AD - Hydrospheric and Biospheric Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, USA Y1 - 2011/09/15/ PY - 2011 DA - 2011 Sep 15 SP - 2184 EP - 2203 PB - Elsevier Science, Box 882 New York NY 10159 USA VL - 115 IS - 9 SN - 0034-4257, 0034-4257 KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE); Aerospace & High Technology Database (AH) KW - BRDF KW - Surface albedo KW - Cloud Absorption Radiometer KW - MODIS KW - CLASIC'07 KW - ARM Climate Research Facility KW - US Southern Great Plains KW - Linear model KW - Inversion KW - A priori knowledge KW - 6S KW - AERONET KW - Spatial analysis KW - APU KW - Airborne measurements KW - Multiangle remote sensing KW - EOS land validation core sites KW - Clouds KW - Reflectance KW - Mathematical models KW - Reflectivity KW - Land KW - Albedo KW - Retrieval KW - Bidirectional reflectance UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1671354178?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remote+Sensing+of+Environment&rft.atitle=Variability+in+surface+BRDF+at+different+spatial+scales+%2830m-500m%29+over+a+mixed+agricultural+landscape+as+retrieved+from+airborne+and+satellite+spectral+measurements&rft.au=Roman%2C+Miguel+O%3BGatebe%2C+Charles+K%3BSchaaf%2C+Crystal+B%3BPoudyal%2C+Rajesh%3BWang%2C+Zhuosen%3BKing%2C+Michael+D&rft.aulast=Roman&rft.aufirst=Miguel&rft.date=2011-09-15&rft.volume=115&rft.issue=9&rft.spage=2184&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&rft_id=info:doi/10.1016%2Fj.rse.2011.04.012 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-10-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.rse.2011.04.012 ER - TY - NEWS T1 - Dwarf Planet Mysteries Beckon to New Horizons AN - 888624100 JF - UPI Space Daily AU - Dauna Coulter for NASA Science News Y1 - 2011/09/13/ PY - 2011 DA - 2011 Sep 13 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/888624100?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Dwarf+Planet+Mysteries+Beckon+to+New+Horizons&rft.au=Dauna+Coulter+for+NASA+Science+News&rft.aulast=Dauna+Coulter+for+NASA+Science+News&rft.aufirst=&rft.date=2011-09-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-09-13 ER - TY - JOUR T1 - On the origins of GEMS grains AN - 921714272; 2012-021941 AB - From their birth as condensates in the outflows of oxygen-rich evolved stars, processing in interstellar space, and incorporation into disks around new stars, amorphous silicates predominate in most astrophysical environments. Amorphous silicates were a major building block of our Solar System and are prominent in infrared spectra of comets. Anhydrous interplanetary dust particles (IDPs) thought to derive from comets contain abundant amorphous silicates known as GEMS (glass with embedded metal and sulfides) grains. GEMS grains have been proposed to be isotopically and chemically homogenized interstellar amorphous silicate dust. We evaluated this hypothesis through coordinated chemical and isotopic analyses of GEMS grains in a suite of IDPs to constrain their origins. GEMS grains show order of magnitude variations in Mg, Fe, Ca, and S abundances. GEMS grains do not match the average element abundances inferred for ISM dust containing on average, too little Mg, Fe, and Ca, and too much S. GEMS grains have complementary compositions to the crystalline components in IDPs suggesting that they formed from the same reservoir. We did not observe any unequivocal microstructural or chemical evidence that GEMS grains experienced prolonged exposure to radiation. We identified four GEMS grains having O isotopic compositions that point to origins in red giant branch or asymptotic giant branch stars and supernovae. Based on their O isotopic compositions, we estimate that 1-6% of GEMS grains are surviving circumstellar grains. The remaining 94-99% of GEMS grains have O isotopic compositions that are indistinguishable from terrestrial materials and carbonaceous chondrites. These isotopically solar GEMS grains either formed in the Solar System or were completely homogenized in the interstellar medium (ISM). However, the chemical compositions of GEMS grains are extremely heterogeneous and seem to rule out this possibility. Based on their solar isotopic compositions and their non-solar elemental compositions we propose that most GEMS grains formed in the nebula as late-stage non-equilibrium condensates. JF - Geochimica et Cosmochimica Acta AU - Keller, L P AU - Messenger, S Y1 - 2011/09// PY - 2011 DA - September 2011 SP - 5336 EP - 5365 PB - Elsevier, New York, NY VL - 75 IS - 18 SN - 0016-7037, 0016-7037 KW - silicates KW - oxygen KW - isotopes KW - interplanetary dust KW - stable isotopes KW - nitrogen KW - mineral composition KW - major elements KW - phase equilibria KW - spectra KW - condensates KW - chemical composition KW - interstellar dust KW - geochemistry KW - chemical ratios KW - N-15/N-14 KW - amorphous materials KW - isotope ratios KW - glass with embedded metal and sulfides KW - cosmochemistry KW - O-18/O-16 KW - TEM data KW - solar nebula KW - cosmic dust KW - comets KW - stars KW - crystal chemistry KW - GEMS grains KW - 04:Extraterrestrial geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921714272?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=On+the+origins+of+GEMS+grains&rft.au=Keller%2C+L+P%3BMessenger%2C+S&rft.aulast=Keller&rft.aufirst=L&rft.date=2011-09-01&rft.volume=75&rft.issue=18&rft.spage=5336&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2011.06.040 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 137 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - amorphous materials; chemical composition; chemical ratios; comets; condensates; cosmic dust; cosmochemistry; crystal chemistry; GEMS grains; geochemistry; glass with embedded metal and sulfides; interplanetary dust; interstellar dust; isotope ratios; isotopes; major elements; mineral composition; N-15/N-14; nitrogen; O-18/O-16; oxygen; phase equilibria; silicates; solar nebula; spectra; stable isotopes; stars; TEM data DO - http://dx.doi.org/10.1016/j.gca.2011.06.040 ER - TY - JOUR T1 - Effects of geometric details on slat noise generation and propagation AN - 918059867; 15630333 AB - The relevance of geometric details to the generation and propagation of noise from leading-edge slats is considered. Typically, such details are omitted in computational simulations and model scale experiments thereby creating ambiguities in comparisons with acoustic results from flight tests. The current study uses two-dimensional, computational simulations in conjunction with a Ffowcs Williams-Hawkings (FW-H) solver to investigate the effects of previously neglected slat "bulb" and "blade" seals on the local flow field and the associated acoustic radiation. The computations show that the presence of the "blade" seal at the cusp in the simulated geometry significantly changes the slat cove flow dynamics, reduces the amplitudes of the radiated sound, and to a lesser extent, alters the directivity beneath the airfoil. Furthermore, the computations suggest that a modest extension of the baseline "blade" seal further enhances the suppression of slat noise. JF - Noise and Vibration in Industry AU - Khorrami, M AU - Lockard, D AD - NASA Langley Research Center, MS 128, Hampton, VA USA Y1 - 2011/09// PY - 2011 DA - Sep 2011 SP - 157 PB - Multi-Science Publishing Co. Ltd., 107 High St. Brentwood, Essex CM14 4RX United Kingdom VL - 25 IS - 4 SN - 0950-8163, 0950-8163 KW - Environment Abstracts KW - Acoustics KW - Vibration KW - Noise levels KW - Simulation KW - ENA 10:Noise Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/918059867?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Noise+and+Vibration+in+Industry&rft.atitle=Effects+of+geometric+details+on+slat+noise+generation+and+propagation&rft.au=Khorrami%2C+M%3BLockard%2C+D&rft.aulast=Khorrami&rft.aufirst=M&rft.date=2011-09-01&rft.volume=25&rft.issue=4&rft.spage=157&rft.isbn=&rft.btitle=&rft.title=Noise+and+Vibration+in+Industry&rft.issn=09508163&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-01-01 N1 - Last updated - 2015-09-30 N1 - SubjectsTermNotLitGenreText - Acoustics; Vibration; Noise levels; Simulation ER - TY - JOUR T1 - Dissolved and particulate organic carbon in hydrothermal plumes from the East Pacific Rise, 9 degree 50'N AN - 904488879; 15619576 AB - Chemoautotrophic production in seafloor hydrothermal systems has the potential to provide an important source of organic carbon that is exported to the surrounding deep-ocean. While hydrothermal plumes may export carbon, entrained from chimney walls and biologically rich diffuse flow areas, away from sites of venting they also have the potential to provide an environment for in-situ carbon fixation. In this study, we have followed the fate of dissolved and particulate organic carbon (DOC and POC) as it is dispersed through and settles beneath a hydrothermal plume system at 9 degree 50'N on the East Pacific Rise. Concentrations of both DOC and POC are elevated in buoyant plume samples that were collected directly above sites of active venting using both DSV Alvin and a CTD-rosette. Similar levels of POC enrichment are also observed in the dispersing non-buoyant plume, 500m downstream from the vent-site. Further, sediment-trap samples collected beneath the same dispersing plume system, show evidence for a close coupling between organic carbon and Fe oxyhydroxide fluxes. We propose, therefore, a process that concentrates POC into hydrothermal plumes as they disperse through the deep-ocean. This is most probably the result of some combination of preferential adsorption of organic carbon onto Fe-oxyhydroxides and/or microbial activity that preferentially concentrates organic carbon in association with Fe-oxyhydroxides (e.g. through the microbial oxidation of Fe(II) and Fe sulfides). This potential for biological production and consumption within hydrothermal plumes highlights the importance of a multidisciplinary approach to understanding the role of the carbon cycle in deep-sea hydrothermal systems as well as the role that hydrothermal systems may play in regulating global deep-ocean carbon budgets. JF - Deep Sea Research (Part I, Oceanographic Research Papers) AU - Bennett, Sarah A AU - Statham, Peter J AU - Green, Darryl RH AU - Le Bris, Nadine AU - McDermott, Jill M AU - Prado, Florencia AU - Rouxel, Olivier J AU - Von Damm, Karen AU - German, Christopher R AD - School of Ocean and Earth Science, National Oceanography Centre, Southampton SO14 3ZH, UK, Sarah.A.Bennett@jpl.nasa.gov Y1 - 2011/09// PY - 2011 DA - Sep 2011 SP - 922 EP - 931 PB - Elsevier B.V., P.O. Box 800 Kidlington Oxford OX5 1DX United Kingdom VL - 58 IS - 9 SN - 0967-0637, 0967-0637 KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources; Oceanic Abstracts KW - Marine KW - Particulate organic carbon KW - Biological production KW - Organic carbon KW - Carbon cycle KW - ISE, East Pacific Rise KW - Sulphides KW - Sulfide KW - Energy flow KW - Carbon KW - Oxidation KW - Adsorption KW - Deep sea KW - Dissolved organic carbon KW - Ocean floor KW - Plumes KW - Hydrothermal fields KW - Carbon fixation KW - Q1 08563:Fishing gear and methods KW - D 04040:Ecosystem and Ecology Studies KW - O 1080:Multi-disciplinary Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/904488879?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Deep+Sea+Research+%28Part+I%2C+Oceanographic+Research+Papers%29&rft.atitle=Dissolved+and+particulate+organic+carbon+in+hydrothermal+plumes+from+the+East+Pacific+Rise%2C+9+degree+50%27N&rft.au=Bennett%2C+Sarah+A%3BStatham%2C+Peter+J%3BGreen%2C+Darryl+RH%3BLe+Bris%2C+Nadine%3BMcDermott%2C+Jill+M%3BPrado%2C+Florencia%3BRouxel%2C+Olivier+J%3BVon+Damm%2C+Karen%3BGerman%2C+Christopher+R&rft.aulast=Bennett&rft.aufirst=Sarah&rft.date=2011-09-01&rft.volume=58&rft.issue=9&rft.spage=922&rft.isbn=&rft.btitle=&rft.title=Deep+Sea+Research+%28Part+I%2C+Oceanographic+Research+Papers%29&rft.issn=09670637&rft_id=info:doi/10.1016%2Fj.dsr.2011.06.010 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-10-01 N1 - Number of references - 4 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Sulphides; Biological production; Energy flow; Particulate organic carbon; Organic carbon; Dissolved organic carbon; Ocean floor; Carbon fixation; Hydrothermal fields; Sulfide; Carbon; Oxidation; Adsorption; Carbon cycle; Deep sea; Plumes; ISE, East Pacific Rise; Marine DO - http://dx.doi.org/10.1016/j.dsr.2011.06.010 ER - TY - JOUR T1 - Forced and unforced variability of twentieth century North American droughts and pluvials AN - 899152706; 15668180 AB - Research on the forcing of drought and pluvial events over North America is dominated by general circulation model experiments that often have operational limitations (e.g., computational expense, ability to simulate relevant processes, etc). We use a statistically based modeling approach to investigate sea surface temperature (SST) forcing of the twentieth century pluvial (1905-1917) and drought (1932-1939, 1948-1957, 1998-2002) events. A principal component (PC) analysis of Palmer Drought Severity Index (PDSI) from the North American Drought Atlas separates the drought variability into five leading modes accounting for 62% of the underlying variance. Over the full period spanning these events (1900-2005), the first three PCs significantly correlate with SSTs in the equatorial Pacific (PC 1), North Pacific (PC 2), and North Atlantic (PC 3), with spatial patterns (as defined by the empirical orthogonal functions) consistent with our understanding of North American drought responses to SST forcing. We use a large ensemble statistical modeling approach to determine how successfully we can reproduce these drought/pluvial events using these three modes of variability. Using Pacific forcing only (PCs 1-2), we are able to reproduce the 1948-1957 drought and 1905-1917 pluvial above a 95% random noise threshold in over 90% of the ensemble members; the addition of Atlantic forcing (PCs 1-2-3) provides only marginal improvement. For the 1998-2002 drought, Pacific forcing reproduces the drought above noise in over 65% of the ensemble members, with the addition of Atlantic forcing increasing the number passing to over 80%. The severity of the drought, however, is underestimated in the ensemble median, suggesting this drought intensity can only be achieved through internal variability or other processes. Pacific only forcing does a poor job of reproducing the 1932-1939 drought pattern in the ensemble median, and less than one third of ensemble members exceed the noise threshold (28%). Inclusion of Atlantic forcing improves the ensemble median drought pattern and nearly doubles the number of ensemble members passing the noise threshold (52%). Even with the inclusion of Atlantic forcing, the intensity of the simulated 1932-1939 drought is muted, and the drought itself extends too far into the southwest and southern Great Plains. To an even greater extent than the 1998-2002 drought, these results suggest much of the variance in the 1932-1939 drought is dependent on processes other than SST forcing. This study highlights the importance of internal noise and non SST processes for hydroclimatic variability over North America, complementing existing research using general circulation models. JF - Climate Dynamics AU - Cook, Benjamin I AU - Cook, Edward R AU - Anchukaitis, Kevin J AU - Seager, Richard AU - Miller, Ron L AD - NASA Goddard Institute for Space Studies, 2880 Broadway, New York, NY, 10025, USA, bc9z@ldeo.columbia.edu Y1 - 2011/09// PY - 2011 DA - September 2011 SP - 1097 EP - 1110 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 37 IS - 5-6 SN - 0930-7575, 0930-7575 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - Variability KW - Acoustic waves KW - Statistical analysis KW - Empirical orthogonal functions KW - Drought KW - spatial distribution KW - IN, North Pacific KW - IS, Equatorial Pacific KW - Ocean-atmosphere system KW - plains KW - Noise pollution KW - Sea surface temperatures KW - Droughts KW - Marine KW - North America KW - Climate models KW - Climates KW - Noise levels KW - Temperature KW - Atmospheric circulation KW - AN, North Atlantic KW - Accounting KW - Model Studies KW - USA, Great Plains KW - General circulation models KW - Noise KW - Drought patterns KW - SW 0810:General KW - P 1000:MARINE POLLUTION KW - M2 551.58:Climatology (551.58) KW - Q2 09244:Air-sea coupling UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/899152706?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climate+Dynamics&rft.atitle=Forced+and+unforced+variability+of+twentieth+century+North+American+droughts+and+pluvials&rft.au=Cook%2C+Benjamin+I%3BCook%2C+Edward+R%3BAnchukaitis%2C+Kevin+J%3BSeager%2C+Richard%3BMiller%2C+Ron+L&rft.aulast=Cook&rft.aufirst=Benjamin&rft.date=2011-09-01&rft.volume=37&rft.issue=5-6&rft.spage=1097&rft.isbn=&rft.btitle=&rft.title=Climate+Dynamics&rft.issn=09307575&rft_id=info:doi/10.1007%2Fs00382-010-0897-9 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-10-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Ocean-atmosphere system; Atmospheric circulation; Droughts; Climate models; General circulation models; Acoustic waves; Statistical analysis; Empirical orthogonal functions; Noise pollution; Drought; Sea surface temperatures; Drought patterns; spatial distribution; Temperature; Noise levels; plains; Variability; Climates; Noise; Accounting; Model Studies; North America; USA, Great Plains; IN, North Pacific; IS, Equatorial Pacific; AN, North Atlantic; Marine DO - http://dx.doi.org/10.1007/s00382-010-0897-9 ER - TY - JOUR T1 - A study of regional-scale variability of in situ and model-generated tropospheric trace gases: Insights into observational requirements for a satellite in geostationary orbit AN - 1777107291; 15381110 AB - We examine the results from a regional-scale chemical-transport model with 4-km resolution to determine the spatial variability of trace gases on this scale. Model-derived variability statistics are generated using 1st-order structure functions and then compared with in situ trace gas measurements from a series of aircraft campaigns. The variability of the observations and the model-derived concentrations are found to be in reasonable agreement for O3 and CO, but the model underestimates the observed variability of NO2. Variability statistics are then calculated for model-derived tropospheric column integrals. These integrals are calculated for 0-10 km (representative of the entire tropospheric column), 0-2 km (representative of the planetary boundary layer, PBL) and 2-10 km (representative of the free troposphere, FT). For each of the species examined, the variability of the tropospheric column is generally controlled by the variability in the lowest 2 km. The degree of control for each trace gas, however, is different. Whereas NO2 is completely dominated by PBL processes, CO variability in the FT contributes appreciably to the variability of the entire tropospheric column, suggesting that two independent pieces of information for CO would be most helpful for describing the variability of the entire tropospheric column. Likewise, the variability of an independent free tropospheric measurement of O3 would provide additional insight into the observed variability of the entire column, but the amount of additional information provided by a separate FT measurement is not as beneficial to what was found for CO. We provide additional analyses to quantify relationships that can be used to better understand the model-derived structure functions and their dependence on grid size and time of day. Lastly we present a practical example of how this information may be used for guidance in the development of science requirements for future satellite instruments since measurements from these instruments must be able to resolve smaller scale gradients to be used successfully for air quality applications. JF - Atmospheric Environment AU - Fishman, Jack AU - Silverman, Morgan L AU - Crawford, James H AU - Creilson, John K AD - NASA Langley Research Center, Hampton, VA 23681, USA jack.fishman@nasa.gov Y1 - 2011/09// PY - 2011 DA - September 2011 SP - 4682 EP - 4694 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 45 IS - 27 SN - 1352-2310, 1352-2310 KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE); Aerospace & High Technology Database (AH) KW - Nitrogen dioxide KW - Carbon monoxide KW - Columns (structural) KW - Statistics KW - Mathematical models KW - Aircraft components KW - Integrals KW - Trace gases UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777107291?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=A+study+of+regional-scale+variability+of+in+situ+and+model-generated+tropospheric+trace+gases%3A+Insights+into+observational+requirements+for+a+satellite+in+geostationary+orbit&rft.au=Fishman%2C+Jack%3BSilverman%2C+Morgan+L%3BCrawford%2C+James+H%3BCreilson%2C+John+K&rft.aulast=Fishman&rft.aufirst=Jack&rft.date=2011-09-01&rft.volume=45&rft.issue=27&rft.spage=4682&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2Fj.atmosenv.2011.05.008 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Number of references - 1 N1 - Last updated - 2016-08-08 DO - http://dx.doi.org/10.1016/j.atmosenv.2011.05.008 ER - TY - JOUR T1 - Aragonite kinetics in dilute solutions AN - 1656035492; 2015-012190 AB - Aragonite was synthesized inorganically using a seeded-growth technique to characterize precipitation kinetics for the heterogeneous growth of solid from dilute solutions (ionic strength: 0.05-0.07 mol l (super -1) ). The concentration of all aqueous constituents, including Ca ( approximately 5-15 mmol l (super -1) ), Na ( approximately 10-35 mmol l (super -1) ), Cl ( approximately 30-35 mmol l (super -1) ), and carbon (as total alkalinity: approximately 10 to 17 meq l (super -1) ), was held constant by the addition of titrants that contained excess solute concentrations to balance the growth of solid phase during the precipitation reaction, and a CO (sub 2) /N (sub 2) gas mixture (0.009-0.178) was bubbled through each solution to facilitate mass exchange between gaseous and aqueous carbon species. Forty-three experiments were conducted at 10 degrees (n = 13), 25 degrees (n = 21), and 40 degrees C (n = 9), over a range of average saturation states with respect to aragonite from 8.3 to 28.5, 2.9 to 19.6 and 2.0 to 12.2, and average precipitation rates from 10 (super 2.8) to 10 (super 3.8) , 10 (super 2.3) to 10 (super 4.0) , and 10 (super 2.5) to 10 (super 4.1) micromol m (super -2) h (super -1) , respectively. Reaction orders averaged 1.7 + or - 0.10 at 10 degrees , 1.7 + or - 0.07 at 25 degrees and 1.5 + or - 0.06 at 40 degrees , and they were independent of temperature while rate constants averaged 10 (super 1.3) + or - 0.12, 10 (super 1.9) + or - 0.06, and 10 (super 2.6) + or - 0.04 micromol m (super -2) h (super -1) , respectively, increasing one-half order of magnitude for each 15 degrees C rise in temperature. From these data, an Arrhenius activation energy of 71.2 kJ mol (super -1) is calculated for the heterogeneous precipitation of aragonite. This value is comparable to a sole independent measurement of 80.7 kJ mol (super -1) reported for the solid-solution recrystallization of monohydrocalcite to aragonite (Munemoto and Fukushi in J Mineral Petrol Sci 103: 345-349, 2008). Copyright 2011 Springer Science+Business Media B.V. JF - Aquatic Geochemistry AU - Romanek, Christopher S AU - Morse, John W AU - Grossman, Ethan L Y1 - 2011/09// PY - 2011 DA - September 2011 SP - 339 EP - 356 PB - Springer, Dordrecht VL - 17 IS - 4-5 SN - 1380-6165, 1380-6165 KW - calcium KW - halogens KW - crystal growth KW - aqueous solutions KW - temperature KW - nitrogen KW - carbon dioxide KW - laboratory studies KW - activation energy KW - reactivity KW - chemical reactions KW - chloride ion KW - carbon KW - alkalinity KW - heterogeneity KW - kinetics KW - geochemistry KW - synthetic materials KW - pH KW - chlorine KW - alkaline earth metals KW - experimental studies KW - gaseous phase KW - aragonite KW - alkali metals KW - electron microscopy data KW - sodium KW - hydrochemistry KW - monohydrocalcite KW - solid phase KW - precipitation KW - metals KW - carbonates KW - SEM data KW - 02B:Hydrochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1656035492?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aquatic+Geochemistry&rft.atitle=Aragonite+kinetics+in+dilute+solutions&rft.au=Romanek%2C+Christopher+S%3BMorse%2C+John+W%3BGrossman%2C+Ethan+L&rft.aulast=Romanek&rft.aufirst=Christopher&rft.date=2011-09-01&rft.volume=17&rft.issue=4-5&rft.spage=339&rft.isbn=&rft.btitle=&rft.title=Aquatic+Geochemistry&rft.issn=13806165&rft_id=info:doi/10.1007%2Fs10498-011-9127-2 L2 - http://www.springerlink.com/app/home/journal.asp?wasp=06310259ce2e45a6a9eacb848fdddbe0&referrer=parent&backto=linkingpublicationresults,1:100238,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2015-01-01 N1 - Number of references - 49 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2015-02-19 N1 - SubjectsTermNotLitGenreText - activation energy; alkali metals; alkaline earth metals; alkalinity; aqueous solutions; aragonite; calcium; carbon; carbon dioxide; carbonates; chemical reactions; chloride ion; chlorine; crystal growth; electron microscopy data; experimental studies; gaseous phase; geochemistry; halogens; heterogeneity; hydrochemistry; kinetics; laboratory studies; metals; monohydrocalcite; nitrogen; pH; precipitation; reactivity; SEM data; sodium; solid phase; synthetic materials; temperature DO - http://dx.doi.org/10.1007/s10498-011-9127-2 ER - TY - JOUR T1 - Ultraviolet photon-induced synthesis and trapping of H (sub 2) O (sub 2) and O (sub 3) in porous water ice films in the presence of ambient O (sub 2) ; implications for extraterrestrial ice AN - 1542638218; 2014-044698 AB - The mass uptake of ambient oxygen in nanoporous ice is enhanced by irradiation with 193 nm photons, due to conversion of O (sub 2) into H (sub 2) O (sub 2) and O (sub 3) , with an efficiency that increases with decreasing temperature. These findings show a new way to form H (sub 2) O (sub 2) and O (sub 3) on icy surfaces in the outer solar system at depths much larger than are accessible by typical ionizing radiation, with possible astrobiological implications. Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The = Astrophysical Journal. Letters AU - Shi, J AU - Raut, U AU - Kim, J H AU - Loeffler, M AU - Baragiola, R A Y1 - 2011/09/01/ PY - 2011 DA - 2011 Sep 01 EP - Paper no. L3 PB - IOP Publishing, Bristol VL - 738 IS - 1 SN - 2041-8205, 2041-8205 KW - water KW - solar system KW - experimental studies KW - irradiation KW - oxygen KW - astrobiology KW - porous materials KW - ultraviolet radiation KW - temperature KW - ozone KW - chemical reactions KW - electromagnetic radiation KW - ice KW - low temperature KW - hydrogen peroxide KW - synthesis KW - reflectance KW - 04:Extraterrestrial geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1542638218?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+%3D+Astrophysical+Journal.+Letters&rft.atitle=Ultraviolet+photon-induced+synthesis+and+trapping+of+H+%28sub+2%29+O+%28sub+2%29+and+O+%28sub+3%29+in+porous+water+ice+films+in+the+presence+of+ambient+O+%28sub+2%29+%3B+implications+for+extraterrestrial+ice&rft.au=Shi%2C+J%3BRaut%2C+U%3BKim%2C+J+H%3BLoeffler%2C+M%3BBaragiola%2C+R+A&rft.aulast=Shi&rft.aufirst=J&rft.date=2011-09-01&rft.volume=738&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+%3D+Astrophysical+Journal.+Letters&rft.issn=20418205&rft_id=info:doi/10.1088%2F2041-8205%2F738%2F1%2FL3 L2 - http://iopscience.iop.org/2041-8205 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 45 N1 - Document feature - illus. N1 - Last updated - 2014-07-04 N1 - SubjectsTermNotLitGenreText - astrobiology; chemical reactions; electromagnetic radiation; experimental studies; hydrogen peroxide; ice; irradiation; low temperature; oxygen; ozone; porous materials; reflectance; solar system; synthesis; temperature; ultraviolet radiation; water DO - http://dx.doi.org/10.1088/2041-8205/738/1/L3 ER - TY - JOUR T1 - Water isotopologues as a quantitative paleosalinity proxy AN - 1529953790; 19842388 AB - Paleosalinity reconstructions are a goal of paleoceanographic study because of their potential to provide insight into past ocean circulation. While temperature reconstructions have been assessed by using multiple independent proxies, the skill of existing salinity reconstructions remains poorly quantified. We examine the applicability of two different approaches using a set of coupled water isotope-enabled general circulation model experiments as a numerical analog for the real climate system. These simulations for the Holocene, at roughly 1000 year time steps, explicitly track variability in both the water isotopologues and salinity. Our simulations suggest that quantitative reconstructions of past salinity variability based solely on inferred [delta] super(18)O sub(sw ) variability have very large errors and uncertainties. However, we find that paired [delta] super(18)O sub(sw ) and [delta]D variability (from combining biomarker and calcite proxies) holds promise for providing better quantitative estimates of salinity variability. Key Points * The d18Osw-Sal method for paleosalinity reconstruction has large errors * Paleosalinity reconstruction is improved by using paired dD and d18Osw * Percent biases for the d18Osw-salinity method are provided JF - Paleoceanography AU - LeGrande, Allegra N AU - Schmidt, Gavin A AD - NASA Goddard Institute for Space Studies and Center for Climate Systems Research, Columbia University, New York, New York, USA. Y1 - 2011/09// PY - 2011 DA - September 2011 SP - [np] PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 26 IS - 3 SN - 0883-8305, 0883-8305 KW - Ecology Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Oceanic Abstracts KW - [delta] super(18)O sub(sw) KW - Holocene KW - paleosalinity KW - Temperature effects KW - Marine KW - Palaeosalinity KW - Palaeotemperature KW - Palaeo studies KW - Climate KW - Atmospheric circulation KW - Biomarkers KW - Palaeoclimate KW - biomarkers KW - calcite KW - Palaeoceanography KW - Salinity effects KW - Oceans KW - Ocean-atmosphere system KW - Q2 09243:Structure, mechanics and thermodynamics KW - O 2010:Physical Oceanography KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529953790?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Paleoceanography&rft.atitle=Water+isotopologues+as+a+quantitative+paleosalinity+proxy&rft.au=LeGrande%2C+Allegra+N%3BSchmidt%2C+Gavin+A&rft.aulast=LeGrande&rft.aufirst=Allegra&rft.date=2011-09-01&rft.volume=26&rft.issue=3&rft.spage=%5Bnp%5D&rft.isbn=&rft.btitle=&rft.title=Paleoceanography&rft.issn=08838305&rft_id=info:doi/10.1029%2F2010PA002043 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-05-01 N1 - Last updated - 2016-02-29 N1 - SubjectsTermNotLitGenreText - Palaeotemperature; Palaeosalinity; Palaeoceanography; Palaeo studies; Ocean-atmosphere system; Atmospheric circulation; Palaeoclimate; Biomarkers; Holocene; Temperature effects; Oceans; Salinity effects; Climate; biomarkers; calcite; Marine DO - http://dx.doi.org/10.1029/2010PA002043 ER - TY - JOUR T1 - On the utility of identification schemes for digital earth science data; an assessment and recommendations AN - 1464883725; 2013-094545 AB - In recent years, a number of data identification technologies have been developed which purport to permanently identify digital objects. In this paper, nine technologies and systems for assigning persistent identifiers are assessed for their applicability to Earth science data (ARKs, DOIs, XRIs, Handles, LSIDs, OIDs, PURLs, URIs/URNs/URLs, and UUIDs). The evaluation used four use cases that focused on the suitability of each scheme to provide Unique Identifiers for Earth science data objects, to provide Unique Locators for the objects, to serve as Citable Locators, and to uniquely identify the scientific contents of data objects if the data were reformatted. Of all the identifier schemes assessed, the one that most closely meets all of the requirements for an Unique Identifier is the UUID scheme. Any of the URL/URI/IRI-based identifier schemes assessed could be used for Unique Locators. Since there are currently no strong market leaders to help make the choice among them, the decision must be based on secondary criteria. While most publications now allow the use of URLs in citations, so that all of the URL/URI/IRI based identification schemes discussed in this paper could potentially be used as a Citable Locator, DOIs are the identification scheme currently adopted by most commercial publishers. None of the identifier schemes assessed here even minimally address identification of scientifically identical numerical data sets under reformatting. Copyright 2011 Springer-Verlag JF - Earth Science Informatics AU - Duerr, Ruth E AU - Downs, Robert R AU - Tilmes, Curt AU - Barkstrom, Bruce AU - Lenhardt, W Christopher AU - Glassy, Joseph AU - Bermudez, Luis E AU - Slaughter, Peter Y1 - 2011/09// PY - 2011 DA - September 2011 SP - 139 EP - 160 PB - Springer, Heidelberg-Berlin VL - 4 IS - 3 SN - 1865-0473, 1865-0473 KW - Archival Resource Keys KW - digital data KW - citable locators KW - Life Sciences Unique Identifiers KW - data handling KW - unique identifiers KW - data processing KW - data KW - URLs KW - data reformatting KW - URNs KW - ARKs KW - unique locators KW - data management KW - Universally Unique Identifiers KW - PURLs KW - Persistent Uniform Resource Locators KW - information technology KW - geoscience KW - data bases KW - permanent identifiers KW - Object Identifiers KW - XRIs KW - UUIDs KW - digital identifiers KW - registration KW - information management KW - Digital Object Identifiers KW - LSIDs KW - OIDs KW - URIs KW - Uniform Resource Identifiers KW - Handle System KW - DOIs KW - identification KW - Uniform Resource Names KW - information systems KW - Uniform Resource Locators KW - Extensible Resource Identifiers KW - Handles KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1464883725?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+Science+Informatics&rft.atitle=On+the+utility+of+identification+schemes+for+digital+earth+science+data%3B+an+assessment+and+recommendations&rft.au=Duerr%2C+Ruth+E%3BDowns%2C+Robert+R%3BTilmes%2C+Curt%3BBarkstrom%2C+Bruce%3BLenhardt%2C+W+Christopher%3BGlassy%2C+Joseph%3BBermudez%2C+Luis+E%3BSlaughter%2C+Peter&rft.aulast=Duerr&rft.aufirst=Ruth&rft.date=2011-09-01&rft.volume=4&rft.issue=3&rft.spage=139&rft.isbn=&rft.btitle=&rft.title=Earth+Science+Informatics&rft.issn=18650473&rft_id=info:doi/10.1007%2Fs12145-011-0083-6 L2 - http://www.springerlink.com/content/1865-0481 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2013-01-01 N1 - Number of references - 105 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2013-12-05 N1 - SubjectsTermNotLitGenreText - Archival Resource Keys; ARKs; citable locators; data; data bases; data handling; data management; data processing; data reformatting; digital data; digital identifiers; Digital Object Identifiers; DOIs; Extensible Resource Identifiers; geoscience; Handle System; Handles; identification; information management; information systems; information technology; Life Sciences Unique Identifiers; LSIDs; Object Identifiers; OIDs; permanent identifiers; Persistent Uniform Resource Locators; PURLs; registration; Uniform Resource Identifiers; Uniform Resource Locators; Uniform Resource Names; unique identifiers; unique locators; Universally Unique Identifiers; URIs; URLs; URNs; UUIDs; XRIs DO - http://dx.doi.org/10.1007/s12145-011-0083-6 ER - TY - JOUR T1 - Smart sensor systems for human health breath monitoring applications AN - 1448212119; 18555004 AB - Breath analysis techniques offer a potential revolution in health care diagnostics, especially if these techniques can be brought into standard use in the clinic and at home. The advent of microsensors combined with smart sensor system technology enables a new generation of sensor systems with significantly enhanced capabilities and minimal size, weight and power consumption. This paper discusses the microsensor/smart sensor system approach and provides a summary of efforts to migrate this technology into human health breath monitoring applications. First, the basic capability of this approach to measure exhaled breath associated with exercise physiology is demonstrated. Building from this foundation, the development of a system for a portable asthma home health care system is described. A solid-state nitric oxide (NO) sensor for asthma monitoring has been identified, and efforts are underway to miniaturize this NO sensor technology and integrate it into a smart sensor system. It is concluded that base platform microsensor technology combined with smart sensor systems can address the needs of a range of breath monitoring applications and enable new capabilities for healthcare. JF - Journal of Breath Research AU - Hunter, G W AU - Xu, J C AU - Biaggi-Labiosa, A M AU - Laskowski, D AU - Dutta, P K AU - Mondal, S P AU - Ward, B J AU - Makel, D B AU - Liu, C C AU - Chang, C W AU - Dweik, R A AD - NASA Glenn Research Center, Cleveland, OH, USA, ghunter@grc.nasa.gov Y1 - 2011/09// PY - 2011 DA - Sep 2011 SP - 037111 EP - 1-11 VL - 5 IS - 3 SN - 1752-7155, 1752-7155 KW - Health & Safety Science Abstracts KW - Sensors KW - Health care KW - Physiology KW - Asthma KW - Nitric oxide KW - Respiratory diseases KW - Power consumption KW - Technology KW - H 6000:Natural Disasters/Civil Defense/Emergency Management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1448212119?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Breath+Research&rft.atitle=Smart+sensor+systems+for+human+health+breath+monitoring+applications&rft.au=Hunter%2C+G+W%3BXu%2C+J+C%3BBiaggi-Labiosa%2C+A+M%3BLaskowski%2C+D%3BDutta%2C+P+K%3BMondal%2C+S+P%3BWard%2C+B+J%3BMakel%2C+D+B%3BLiu%2C+C+C%3BChang%2C+C+W%3BDweik%2C+R+A&rft.aulast=Hunter&rft.aufirst=G&rft.date=2011-09-01&rft.volume=5&rft.issue=3&rft.spage=037111&rft.isbn=&rft.btitle=&rft.title=Journal+of+Breath+Research&rft.issn=17527155&rft_id=info:doi/10.1088%2F1752-7155%2F5%2F3%2F037111 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-10-01 N1 - Last updated - 2015-08-05 N1 - SubjectsTermNotLitGenreText - Health care; Sensors; Physiology; Asthma; Nitric oxide; Respiratory diseases; Power consumption; Technology DO - http://dx.doi.org/10.1088/1752-7155/5/3/037111 ER - TY - JOUR T1 - Integrating sensor data and geospatial tools to enhance real-time disaster management capabilities; wildfire observations AN - 1220562932; 2013-001780 AB - The primary factors needed to manage disaster events are time-critical geospatial information on the event occurrence and presentation of that information in an easily manageable, collaborative/interactive geospatial decision-support and visualization environment. In this chapter, we describe the development, integration, and use of an unmanned airborne system (UAS), a multispectral sensor with autonomous onboard processing capabilities, a data distribution system, and geospatial processes to deliver real-time information to emergency incident management teams facing wildland fires. The unique integration of the described tools has contributed to an order of magnitude decrease in the delivery time of critical geospatial information to disaster managers. The UAS wildfire imaging campaigns in the western United States in 2007 and 2008 are briefly described in the context of real-world adaptation and utility of the resultant information improvements. These capabilities have far-reaching applications to other time-critical disaster event management scenarios, and they are being expanded to further utilize various UAS platforms and other airborne sensor system data. This chapter will also describe the resultant integration issues faced and the solutions for ubiquitous adaptation of many of these processes in future UAS missions. JF - Special Paper - Geological Society of America AU - Ambrosia, Vincent G AU - Sullivan, Donald V AU - Buechel, Sally W Y1 - 2011/09// PY - 2011 DA - September 2011 SP - 1 EP - 12 PB - Geological Society of America (GSA), Boulder, CO VL - 482 SN - 0072-1077, 0072-1077 KW - United States KW - fires KW - technology KW - geologic hazards KW - spatial data KW - natural hazards KW - data processing KW - instruments KW - observations KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1220562932?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Integrating+sensor+data+and+geospatial+tools+to+enhance+real-time+disaster+management+capabilities%3B+wildfire+observations&rft.au=Ambrosia%2C+Vincent+G%3BSullivan%2C+Donald+V%3BBuechel%2C+Sally+W&rft.aulast=Ambrosia&rft.aufirst=Vincent&rft.date=2011-09-01&rft.volume=482&rft.issue=&rft.spage=1&rft.isbn=9780813724829&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2482%2801%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - Number of references - 6 N1 - PubXState - CO N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-11-29 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - data processing; fires; geologic hazards; instruments; natural hazards; observations; spatial data; technology; United States DO - http://dx.doi.org/10.1130/2011.2482(01) ER - TY - JOUR T1 - Stability of the Atlantic meridional overturning circulation and stratification in a zonally averaged ocean model; effects of freshwater flux, Southern Ocean winds, and diapycnal diffusion AN - 1037240359; 2012-077987 AB - The Atlantic Meridional Overturning Circulation (AMOC) is a crucial component of the global climate system. In this study, using a zonally averaged ocean model, we reexamine the sensitivity of this circulation, and ocean density structure in general, to several types of external forcing. The basin of the model extends from northern high latitudes to Antarctica and includes an implicit representation of a circumpolar channel in the South, and ocean circulation is driven by surface buoyancy fluxes and wind forcing. In contrast to earlier two-dimensional studies of the AMOC, our approach involves a careful treatment of the residual mean circulation (comprising the Eulerian-mean and eddy-induced flows), which is especially important for the Southern Ocean dynamics. Using boundary conditions consistent with present-day observations the model reproduces realistic ocean stratification and meridional overturning. The structure, intensity, and stability of the overturning are then extensively studied using three control parameters: the strength of westerly wind stress over the Southern Ocean, the magnitude of freshwater fluxes imposed on the northern Atlantic, and ocean diapycnal diffusivity. In a realistic parameter range, we estimate the AMOC sensitivity to changes in the Southern Ocean winds on the order of 1 Sv per 20% increase in the wind stress. The overturning also increases with diapycnal diffusivity, but the dependence is weaker than in the absence of the winds. The model can undergo a shutdown of the overturning (subject to a hysteresis) when either the freshwater forcing gradually increases or the wind stress decreases. The hysteresis loop disappears for large values of isopycnal diffusivity. Changes in the AMOC intensity are accompanied by changes in the volume transport of the Antarctic Circumpolar Current. Specifically, the AMOC collapse leads to a strengthening of this transport. Ultimately, our calculations produce stability maps for the steady states of the meridional overturning circulation and provide a general framework that potentially can be used to compare different models, or to understand past abrupt climate changes related to reorganization of the AMOC. Abstract Copyright (2011) Elsevier, B.V. JF - Deep-Sea Research. Part II: Topical Studies in Oceanography AU - Sevellec, Florian AU - Fedorov, Alexey V Y1 - 2011/09// PY - 2011 DA - September 2011 SP - 1927 EP - 1943 PB - Elsevier, Oxford VL - 58 IS - 17-18 SN - 0967-0645, 0967-0645 KW - upwelling KW - Southern Ocean KW - ocean circulation KW - numerical analysis KW - stability KW - fresh water KW - mathematical models KW - global change KW - Antarctic Circumpolar Current KW - salinity KW - marine transport KW - two-dimensional models KW - temperature KW - thermohaline circulation KW - transport KW - sensitivity analysis KW - Atlantic Meridional Overturning Circulation KW - bathymetry KW - discharge KW - winds KW - Atlantic Ocean KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1037240359?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Deep-Sea+Research.+Part+II%3A+Topical+Studies+in+Oceanography&rft.atitle=Stability+of+the+Atlantic+meridional+overturning+circulation+and+stratification+in+a+zonally+averaged+ocean+model%3B+effects+of+freshwater+flux%2C+Southern+Ocean+winds%2C+and+diapycnal+diffusion&rft.au=Sevellec%2C+Florian%3BFedorov%2C+Alexey+V&rft.aulast=Sevellec&rft.aufirst=Florian&rft.date=2011-09-01&rft.volume=58&rft.issue=17-18&rft.spage=1927&rft.isbn=&rft.btitle=&rft.title=Deep-Sea+Research.+Part+II%3A+Topical+Studies+in+Oceanography&rft.issn=09670645&rft_id=info:doi/10.1016%2Fj.dsr2.2010.10.070 L2 - http://www.sciencedirect.com/science/journal/09670645 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 87 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2013-06-13 N1 - SubjectsTermNotLitGenreText - Antarctic Circumpolar Current; Atlantic Meridional Overturning Circulation; Atlantic Ocean; bathymetry; discharge; fresh water; global change; marine transport; mathematical models; numerical analysis; ocean circulation; salinity; sensitivity analysis; Southern Ocean; stability; temperature; thermohaline circulation; transport; two-dimensional models; upwelling; winds DO - http://dx.doi.org/10.1016/j.dsr2.2010.10.070 ER - TY - JOUR T1 - Effect of the potential melting of the Greenland ice sheet on the meridional overturning circulation and global climate in the future AN - 1037240355; 2012-077986 AB - Multiple recent observations indicate an accelerated mass loss of the Greenland Ice Sheet since the mid-1990s. This increased ice sheet mass loss might be an evidence of global warming and could be related to elevated atmospheric greenhouse gas concentrations. Here, we use the National Center for Atmospheric Research Community Climate System Model version 3 to assess the potential influence of a shrinking Greenland Ice Sheet on the Atlantic Meridional Overturning Circulation (MOC), the surface climate, and sea level in the next two centuries under the IPCC A1B scenario with prescribed rates of Greenland Ice Sheet melting. Results show that a low rate of Greenland melting will not significantly alter the MOC. However a moderate or high rate of Greenland melting does make the MOC weaken further. This further weakened MOC will not make the global climate in the next two centuries cooler than in the late 20th century, but will lessen the warming, especially in the northern high latitudes. Moreover, the sea level changes due to steric effect and ocean dynamics could potentially aggravate the sea level problem near the northeast North America coast and the islands in the western Pacific region. Abstract Copyright (2011) Elsevier, B.V. JF - Deep-Sea Research. Part II: Topical Studies in Oceanography AU - Hu, Aixue AU - Meehl, Gerald A AU - Han, Weiqing AU - Yin, Jianjun Y1 - 2011/09// PY - 2011 DA - September 2011 SP - 1914 EP - 1926 PB - Elsevier, Oxford VL - 58 IS - 17-18 SN - 0967-0645, 0967-0645 KW - general circulation models KW - ocean circulation KW - numerical models KW - Arctic region KW - Greenland ice sheet KW - fresh water KW - global change KW - ice sheets KW - climate change KW - World Ocean Circulation Experiment KW - Greenland KW - sea-level changes KW - melting KW - digital simulation KW - Atlantic Meridional Overturning Circulation KW - Atlantic Ocean KW - meltwater KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1037240355?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Deep-Sea+Research.+Part+II%3A+Topical+Studies+in+Oceanography&rft.atitle=Effect+of+the+potential+melting+of+the+Greenland+ice+sheet+on+the+meridional+overturning+circulation+and+global+climate+in+the+future&rft.au=Hu%2C+Aixue%3BMeehl%2C+Gerald+A%3BHan%2C+Weiqing%3BYin%2C+Jianjun&rft.aulast=Hu&rft.aufirst=Aixue&rft.date=2011-09-01&rft.volume=58&rft.issue=17-18&rft.spage=1914&rft.isbn=&rft.btitle=&rft.title=Deep-Sea+Research.+Part+II%3A+Topical+Studies+in+Oceanography&rft.issn=09670645&rft_id=info:doi/10.1016%2Fj.dsr2.2010.10.069 L2 - http://www.sciencedirect.com/science/journal/09670645 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 47 N1 - Document feature - illus. N1 - Last updated - 2013-06-13 N1 - SubjectsTermNotLitGenreText - Arctic region; Atlantic Meridional Overturning Circulation; Atlantic Ocean; climate change; digital simulation; fresh water; general circulation models; global change; Greenland; Greenland ice sheet; ice sheets; melting; meltwater; numerical models; ocean circulation; sea-level changes; World Ocean Circulation Experiment DO - http://dx.doi.org/10.1016/j.dsr2.2010.10.069 ER - TY - JOUR T1 - Climate and the Atlantic meridional overturning circulation AN - 1037240352; 2012-077985 JF - Deep-Sea Research. Part II: Topical Studies in Oceanography Y1 - 2011/09// PY - 2011 DA - September 2011 SP - 1741 EP - 1944 PB - Elsevier, Oxford VL - 58 IS - 17-18 SN - 0967-0645, 0967-0645 KW - ocean circulation KW - climate effects KW - Atlantic Meridional Overturning Circulation KW - climate change KW - climate KW - Atlantic Ocean KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1037240352?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2011-09-01&rft.volume=&rft.issue=&rft.spage=1741&rft.isbn=&rft.btitle=Climate+and+the+Atlantic+meridional+overturning+circulation&rft.title=Climate+and+the+Atlantic+meridional+overturning+circulation&rft.issn=09670645&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/09670645 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Document feature - illus. incl. tables, sketch maps N1 - SuppNotes - Individual papers within scope are cited separately N1 - Last updated - 2013-05-16 N1 - SubjectsTermNotLitGenreText - Atlantic Meridional Overturning Circulation; Atlantic Ocean; climate; climate change; climate effects; ocean circulation ER - TY - JOUR T1 - Global precipitation measurement AN - 1017970715; 16704254 AB - The quantification of precipitation on a global scale is critical for applications ranging from climate monitoring to water resource management. Conventional observations through surface gauge networks provide the most direct measure of precipitation, although these are very much limited to land areas, with very few in situ measurements over the oceans. Weather radars, although providing a spatial measure of precipitation, are limited in extent and number. Satellite observations offer an unrivalled vantage point to observe precipitation on a global basis. Since precipitation is spatially and temporally highly variable, satellites are able to provide temporal and spatial samples commensurate with many precipitation characteristics. This paper provides an overall review of global precipitation estimation, providing an outline of conventional measurements, the basis of the satellite systems used in the observation of precipitation, and the generation, availability and validation of the derived precipitation products. Finally, future satellite precipitation missions are presented. JF - Meteorological Applications AU - Kidd, Chris AU - Huffman, George AD - Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, USA and NASA/Goddard Space Flight Center, Greenbelt, 20740 MD, USA, chris.kidd@nasa.gov Y1 - 2011/09// PY - 2011 DA - Sep 2011 SP - 334 EP - 353 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 18 IS - 3 SN - 1469-8080, 1469-8080 KW - Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts KW - Climate monitoring KW - Precipitation KW - SW 0815:Precipitation KW - M2:556.18 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1017970715?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteorological+Applications&rft.atitle=Global+precipitation+measurement&rft.au=Kidd%2C+Chris%3BHuffman%2C+George&rft.aulast=Kidd&rft.aufirst=Chris&rft.date=2011-09-01&rft.volume=18&rft.issue=3&rft.spage=334&rft.isbn=&rft.btitle=&rft.title=Meteorological+Applications&rft.issn=14698080&rft_id=info:doi/10.1002%2Fmet.284 L2 - http://onlinelibrary.wiley.com/doi/10.1002/met.284/abstract LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-05-01 N1 - Last updated - 2014-02-21 N1 - SubjectsTermNotLitGenreText - Precipitation DO - http://dx.doi.org/10.1002/met.284 ER - TY - NEWS T1 - Space Storm Tracked from Sun to Earth AN - 885542409 JF - UPI Space Daily AU - Dr. Tony Phillips for NASA Science News Y1 - 2011/08/29/ PY - 2011 DA - 2011 Aug 29 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/885542409?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Space+Storm+Tracked+from+Sun+to+Earth&rft.au=Dr.+Tony+Phillips+for+NASA+Science+News&rft.aulast=Dr.+Tony+Phillips+for+NASA+Science+News&rft.aufirst=&rft.date=2011-08-29&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-08-29 ER - TY - NEWS T1 - Airplane Plus Heat Plus Ice Equals Mystery AN - 885542294 JF - UPI Space Daily AU - Jim Banke for NASA Aeronautics Research Mission Directorate Y1 - 2011/08/29/ PY - 2011 DA - 2011 Aug 29 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/885542294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Airplane+Plus+Heat+Plus+Ice+Equals+Mystery&rft.au=Jim+Banke+for+NASA+Aeronautics+Research+Mission+Directorate&rft.aulast=Jim+Banke+for+NASA+Aeronautics+Research+Mission+Directorate&rft.aufirst=&rft.date=2011-08-29&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-08-29 ER - TY - JOUR T1 - Cloud-system resolving simulations with the NASA Goddard Earth Observing System global atmospheric model (GEOS-5) AN - 912922351; 16006818 AB - GEOS-5 is used for a global non-hydrostatic cloud-resolving simulations GEOS-5 compares favorably with satellite observations of global convection GEOS-5 yields realistic predictions of seasonal hurricane activity/intensity The NASA Global Modeling and Assimilation Office (GMAO) has developed a global non-hydrostatic cloud-system resolving capability within the NASA Goddard Earth Observing System global atmospheric model version 5 (GEOS-5). Using a non-hydrostatic finite-volume dynamical core coupled with advances in the moist physics and convective parameterization the model has been used to perform cloud-system resolving experiments at resolutions as fine as 3.5- to 14-km globally. An overview of preliminary results highlights the development of mid-latitude cyclones, the overall representation of global tropical convection, intense convective activity within the eye wall and outer rain bands of the 2009 Atlantic hurricane Bill validated by satellite observations, and the seasonal predictability of global tropical cyclone activity with realistic intensities. These preliminary results provide motivation for the use of GEOS-5 to simulate multi-scale convective systems within a global model at cloud resolving resolutions. JF - Geophysical Research Letters AU - Putman, William M AU - Suarez, Max AD - NASA Global Modeling and Assimilation Office, Goddard Space Flight Center, Greenbelt, Maryland, USA Y1 - 2011/08/26/ PY - 2011 DA - 2011 Aug 26 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 38 IS - 16 SN - 0094-8276, 0094-8276 KW - Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Sustainability Science Abstracts; Meteorological & Geoastrophysical Abstracts KW - 3310 Atmospheric Processes: Clouds and cloud feedbacks KW - 3314 Atmospheric Processes: Convective processes KW - 3319 Atmospheric Processes: General circulation KW - 3337 Atmospheric Processes: Global climate models KW - GCM KW - global cloud resolving KW - high resolution KW - hurricanes KW - winter storms KW - Convection KW - Cyclones KW - Meteorological data KW - Eye KW - Remote sensing KW - Parameterization KW - Convection development KW - Atmospheric models KW - Sulfur dioxide KW - Predictability KW - Seasonal variations KW - Modelling KW - Simulation KW - convection KW - Satellites KW - cyclones KW - A, Atlantic KW - Clouds KW - Hurricanes KW - Satellite data KW - Eye of tropical cyclones KW - Numerical simulations KW - Convective activity KW - Q2 09393:Remote geosensing KW - O 6030:Oil and Gas Resources KW - M3 1010:Issues in Sustainable Development KW - M2 551.578.1:Liquid (551.578.1) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/912922351?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Cloud-system+resolving+simulations+with+the+NASA+Goddard+Earth+Observing+System+global+atmospheric+model+%28GEOS-5%29&rft.au=Putman%2C+William+M%3BSuarez%2C+Max&rft.aulast=Putman&rft.aufirst=William&rft.date=2011-08-26&rft.volume=38&rft.issue=16&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2011GL048438 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-12-01 N1 - Number of references - 22 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Cyclones; Convection; Hurricanes; Parameterization; Simulation; Modelling; Clouds; Meteorological data; Eye of tropical cyclones; Satellite data; Predictability; Numerical simulations; Convective activity; Convection development; Atmospheric models; Sulfur dioxide; Eye; Remote sensing; convection; cyclones; Satellites; Seasonal variations; A, Atlantic DO - http://dx.doi.org/10.1029/2011GL048438 ER - TY - NEWS T1 - NASA Plans to Visit a Near-Earth Asteroid AN - 884700367 JF - UPI Space Daily AU - Dauna Coulter for NASA Science News Y1 - 2011/08/23/ PY - 2011 DA - 2011 Aug 23 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/884700367?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=NASA+Plans+to+Visit+a+Near-Earth+Asteroid&rft.au=Dauna+Coulter+for+NASA+Science+News&rft.aulast=Dauna+Coulter+for+NASA+Science+News&rft.aufirst=&rft.date=2011-08-23&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-08-23 ER - TY - NEWS T1 - DC-8 Flying Lab Validates Laser Instruments AN - 884697454 JF - UPI Space Daily AU - Beth Hagenauer for NASA Dryden Flight Research Center Y1 - 2011/08/23/ PY - 2011 DA - 2011 Aug 23 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/884697454?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=DC-8+Flying+Lab+Validates+Laser+Instruments&rft.au=Beth+Hagenauer+for+NASA+Dryden+Flight+Research+Center&rft.aulast=Beth+Hagenauer+for+NASA+Dryden+Flight+Research+Center&rft.aufirst=&rft.date=2011-08-23&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-08-23 ER - TY - JOUR T1 - Carbonaceous meteorites contain a wide range of extraterrestrial nucleobases AN - 1729847683; 2015-105418 AB - All terrestrial organisms depend on nucleic acids (RNA and DNA), which use pyrimidine and purine nucleobases to encode genetic information. Carbon-rich meteorites may have been important sources of organic compounds required for the emergence of life on the early Earth; however, the origin and formation of nucleobases in meteorites has been debated for over 50 y. So far, the few nucleobases reported in meteorites are biologically common and lacked the structural diversity typical of other indigenous meteoritic organics. Here, we investigated the abundance and distribution of nucleobases and nucleobase analogs in formic acid extracts of 12 different meteorites by liquid chromatography-mass spectrometry. The Murchison and Lonewolf Nunataks 94102 meteorites contained a diverse suite of nucleobases, which included three unusual and terrestrially rare nucleobase analogs: purine, 2,6-diaminopurine, and 6,8-diaminopurine. In a parallel experiment, we found an identical suite of nucleobases and nucleobase analogs generated in reactions of ammonium cyanide. Additionally, these nucleobase analogs were not detected above our parts-per-billion detection limits in any of the procedural blanks, control samples, a terrestrial soil sample, and an Antarctic ice sample. Our results demonstrate that the purines detected in meteorites are consistent with products of ammonium cyanide chemistry, which provides a plausible mechanism for their synthesis in the asteroid parent bodies, and strongly supports an extraterrestrial origin. The discovery of new nucleobase analogs in meteorites also expands the prebiotic molecular inventory available for constructing the first genetic molecules JF - Proceedings of the National Academy of Sciences of the United States of America AU - Callahan, Michael P AU - Smith, Karen E AU - Cleaves, H James, II AU - Ruzicka, Josef AU - Stern, Jennifer C AU - Glavin, Daniel P AU - House, Christopher H AU - Dworkin, Jason P Y1 - 2011/08/23/ PY - 2011 DA - 2011 Aug 23 SP - 13995 EP - 13998 PB - National Academy of Sciences, Washington, DC VL - 108 IS - 34 SN - 0027-8424, 0027-8424 KW - MET 01070 KW - stony meteorites KW - Orgueil Meteorite KW - formic acid KW - nucleobases KW - mass spectra KW - Elephant Moraine Meteorites KW - life origin KW - ammonium cyanide KW - meteorites KW - Meteorite Hills Meteorites KW - diaminopurines KW - LON 94102 KW - pyrimidine KW - Almahata Sitta Meteorite KW - chondrites KW - QUE 99177 KW - high-resolution methods KW - CI chondrites KW - GRO 95577 KW - carbonaceous chondrites KW - SCO 06043 KW - aqueous alteration KW - organic compounds KW - organic acids KW - Lonewolf Nunataks Meteorites KW - Allan Hills Meteorites KW - RNA KW - abiotic processes KW - CM chondrites KW - proteins KW - 2,6-diaminopurine KW - LEW 90500 KW - guanine KW - Lewis Cliff Meteorites KW - xanthine KW - ALH 83100 KW - Murchison Meteorite KW - adenine KW - CR chondrites KW - Scott Glacier Meteorites KW - amino acids KW - spectra KW - liquid chromatograms KW - ureilite KW - achondrites KW - purines KW - biogenic processes KW - nucleic acids KW - Graves Nunataks Meteorites KW - extraterrestrial geology KW - chromatograms KW - Queen Alexandra Range Meteorites KW - natural analogs KW - EET 92042 KW - DNA KW - GRA 95229 KW - hypoxanthine KW - Grosvenor Mountains Meteorites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1729847683?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.atitle=Carbonaceous+meteorites+contain+a+wide+range+of+extraterrestrial+nucleobases&rft.au=Callahan%2C+Michael+P%3BSmith%2C+Karen+E%3BCleaves%2C+H+James%2C+II%3BRuzicka%2C+Josef%3BStern%2C+Jennifer+C%3BGlavin%2C+Daniel+P%3BHouse%2C+Christopher+H%3BDworkin%2C+Jason+P&rft.aulast=Callahan&rft.aufirst=Michael&rft.date=2011-08-23&rft.volume=108&rft.issue=34&rft.spage=13995&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.issn=00278424&rft_id=info:doi/10.1073%2Fpnas.1106493108 L2 - http://www.pnas.org/content/by/year LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 41 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2015-11-05 N1 - CODEN - PNASA6 N1 - SubjectsTermNotLitGenreText - 2,6-diaminopurine; abiotic processes; achondrites; adenine; ALH 83100; Allan Hills Meteorites; Almahata Sitta Meteorite; amino acids; ammonium cyanide; aqueous alteration; biogenic processes; carbonaceous chondrites; chondrites; chromatograms; CI chondrites; CM chondrites; CR chondrites; diaminopurines; DNA; EET 92042; Elephant Moraine Meteorites; extraterrestrial geology; formic acid; GRA 95229; Graves Nunataks Meteorites; GRO 95577; Grosvenor Mountains Meteorites; guanine; high-resolution methods; hypoxanthine; LEW 90500; Lewis Cliff Meteorites; life origin; liquid chromatograms; LON 94102; Lonewolf Nunataks Meteorites; mass spectra; MET 01070; Meteorite Hills Meteorites; meteorites; Murchison Meteorite; natural analogs; nucleic acids; nucleobases; organic acids; organic compounds; Orgueil Meteorite; proteins; purines; pyrimidine; QUE 99177; Queen Alexandra Range Meteorites; RNA; SCO 06043; Scott Glacier Meteorites; spectra; stony meteorites; ureilite; xanthine DO - http://dx.doi.org/10.1073/pnas.1106493108 ER - TY - JOUR T1 - Detection and formation scenario of citric acid, pyruvic acid, and other possible metabolism precursors in carbonaceous meteorites AN - 1729847098; 2015-105420 AB - Carbonaceous meteorites deliver a variety of organic compounds to Earth that may have played a role in the origin and/or evolution of biochemical pathways. Some apparently ancient and critical metabolic processes require several compounds, some of which are relatively labile such as keto acids. Therefore, a prebiotic setting for any such individual process would have required either a continuous distant source for the entire suite of intact precursor molecules and/or an energetic and compact local synthesis, particularly of the more fragile members. To date, compounds such as pyruvic acid, oxaloacetic acid, citric acid, isocitric acid, and alpha -ketoglutaric acid (all members of the citric acid cycle) have not been identified in extraterrestrial sources or, as a group, as part of a "one pot" suite of compounds synthesized under plausibly prebiotic conditions. We have identified these compounds and others in carbonaceous meteorites and/or as low temperature (laboratory) reaction products of pyruvic acid. In meteorites, we observe many as part of three newly reported classes of compounds: keto acids (pyruvic acid and homologs), hydroxy tricarboxylic acids (citric acid and homologs), and tricarboxylic acids. Laboratory syntheses using (super 13) C-labeled reactants demonstrate that one compound alone, pyruvic acid, can produce several (nonenzymatic) members of the citric acid cycle including oxaloacetic acid. The isotopic composition of some of the meteoritic keto acids points to interstellar or presolar origins, indicating that such compounds might also exist in other planetary systems. JF - Proceedings of the National Academy of Sciences of the United States of America AU - Cooper, George AU - Reed, Chris AU - Nguyen, Dang AU - Carter, Malika AU - Wang, Yi Y1 - 2011/08/23/ PY - 2011 DA - 2011 Aug 23 SP - 14015 EP - 14020 PB - National Academy of Sciences, Washington, DC VL - 108 IS - 34 SN - 0027-8424, 0027-8424 KW - precursors KW - nitriles KW - stony meteorites KW - isotopes KW - hydrothermal vents KW - astrobiology KW - citric acid KW - hydroxy tetracarboxylic acid KW - stable isotopes KW - life origin KW - temperature KW - Murchison Meteorite KW - pyruvic acid KW - meteorites KW - laboratory studies KW - chemical reactions KW - carbon KW - keto acids KW - carboxylic acids KW - chondrites KW - interstellar dust KW - hydroxy tricarboxylic acids KW - pH KW - P-T conditions KW - experimental studies KW - pressure KW - metabolism KW - biochemistry KW - carbonaceous chondrites KW - high pressure KW - geochemical cycle KW - organic compounds KW - organic acids KW - cosmic dust KW - detection KW - extraterrestrial geology KW - low temperature KW - C-13 KW - CM chondrites KW - high temperature KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1729847098?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.atitle=Detection+and+formation+scenario+of+citric+acid%2C+pyruvic+acid%2C+and+other+possible+metabolism+precursors+in+carbonaceous+meteorites&rft.au=Cooper%2C+George%3BReed%2C+Chris%3BNguyen%2C+Dang%3BCarter%2C+Malika%3BWang%2C+Yi&rft.aulast=Cooper&rft.aufirst=George&rft.date=2011-08-23&rft.volume=108&rft.issue=34&rft.spage=14015&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.issn=00278424&rft_id=info:doi/10.1073%2Fpnas.1105715108 L2 - http://www.pnas.org/content/by/year LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 38 N1 - PubXState - DC N1 - Document feature - illus. incl. charts N1 - Last updated - 2015-11-05 N1 - CODEN - PNASA6 N1 - SubjectsTermNotLitGenreText - astrobiology; biochemistry; C-13; carbon; carbonaceous chondrites; carboxylic acids; chemical reactions; chondrites; citric acid; CM chondrites; cosmic dust; detection; experimental studies; extraterrestrial geology; geochemical cycle; high pressure; high temperature; hydrothermal vents; hydroxy tetracarboxylic acid; hydroxy tricarboxylic acids; interstellar dust; isotopes; keto acids; laboratory studies; life origin; low temperature; metabolism; meteorites; Murchison Meteorite; nitriles; organic acids; organic compounds; P-T conditions; pH; precursors; pressure; pyruvic acid; stable isotopes; stony meteorites; temperature DO - http://dx.doi.org/10.1073/pnas.1105715108 ER - TY - JOUR T1 - Scale dependence of spatiotemporal intermittence of rain AN - 899165499; 15744011 AB - It is a common experience that rainfall is intermittent in space and time. This is reflected by the fact that the statistics of area- and/or time-averaged rain rate is described by a mixed distribution with a nonzero probability of having a sharp value zero. In this paper we have explored the dependence of the probability of zero rain on the averaging space and time scales in large multiyear data sets based on radar and rain gauge observations. A stretched exponential formula fits the observed scale dependence of the zero-rain probability. The proposed formula makes it apparent that the space-time support of the rain field is not quite a set of measure zero as is sometimes supposed. We also give an explanation of the observed behavior in terms of a simple probabilistic model based on the premise that rainfall process has an intrinsic memory. JF - Water Resources Research AU - Kundu, Prasun K AU - Siddani, Ravi K AD - Joint Center for Earth Systems Technology, University of Maryland Baltimore County and NASA Goddard Space Flight Center, Baltimore, Maryland, USA Y1 - 2011/08/20/ PY - 2011 DA - 2011 Aug 20 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 47 IS - 08 SN - 0043-1397, 0043-1397 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - 3265 Mathematical Geophysics: Stochastic processes KW - 3354 Atmospheric Processes: Precipitation KW - 4475 Nonlinear Geophysics: Scaling: spatial and temporal KW - intermittence KW - long range memory KW - persistence KW - precipitation KW - space-time scaling KW - stochastic process KW - Statistics KW - Rain gauges KW - Probability Distribution KW - Rainfall KW - Statistical analysis KW - Water resources KW - Model Studies KW - Behavior KW - Rain Gages KW - Radar KW - Rainfall processes KW - Rain KW - Water resources research KW - Q2 09243:Structure, mechanics and thermodynamics KW - AQ 00006:Sewage KW - M2 556.18:Water Management (556.18) KW - SW 0815:Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/899165499?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Scale+dependence+of+spatiotemporal+intermittence+of+rain&rft.au=Kundu%2C+Prasun+K%3BSiddani%2C+Ravi+K&rft.aulast=Kundu&rft.aufirst=Prasun&rft.date=2011-08-20&rft.volume=47&rft.issue=08&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2010WR010070 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-10-01 N1 - Number of references - 44 N1 - Last updated - 2014-11-12 N1 - SubjectsTermNotLitGenreText - Rain gauges; Water resources; Radar; Rainfall processes; Statistical analysis; Water resources research; Statistics; Behavior; Probability Distribution; Rain Gages; Rainfall; Rain; Model Studies DO - http://dx.doi.org/10.1029/2010WR010070 ER - TY - NEWS T1 - Spaceships, Meteors, and Moonlight AN - 885070140 JF - UPI Space Daily AU - Staff Writers for NASA Science News Y1 - 2011/08/20/ PY - 2011 DA - 2011 Aug 20 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/885070140?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Spaceships%2C+Meteors%2C+and+Moonlight&rft.au=Staff+Writers+for+NASA+Science+News&rft.aulast=Staff+Writers+for+NASA+Science+News&rft.aufirst=&rft.date=2011-08-20&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-08-25 ER - TY - NEWS T1 - Teams Practice Lifting Shuttles at Airports AN - 884100554 JF - UPI Space Daily AU - Steven Siceloff for NASA's John F. Kennedy Space Center Y1 - 2011/08/18/ PY - 2011 DA - 2011 Aug 18 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/884100554?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Teams+Practice+Lifting+Shuttles+at+Airports&rft.au=Steven+Siceloff+for+NASA%27s+John+F.+Kennedy+Space+Center&rft.aulast=Steven+Siceloff+for+NASA%27s+John+F.+Kennedy+Space+Center&rft.aufirst=&rft.date=2011-08-18&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-08-18 ER - TY - NEWS T1 - A Freaky Fluid inside Jupiter AN - 884100545 JF - UPI Space Daily AU - Dauna Coulter for NASA Science News Y1 - 2011/08/18/ PY - 2011 DA - 2011 Aug 18 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/884100545?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=A+Freaky+Fluid+inside+Jupiter&rft.au=Dauna+Coulter+for+NASA+Science+News&rft.aulast=Dauna+Coulter+for+NASA+Science+News&rft.aufirst=&rft.date=2011-08-18&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-08-18 ER - TY - NEWS T1 - Sun Unleashes X6.9 Class Flare AN - 884100538 JF - UPI Space Daily AU - Karen C. Fox for NASA's Goddard Space Flight Center Y1 - 2011/08/18/ PY - 2011 DA - 2011 Aug 18 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/884100538?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Sun+Unleashes+X6.9+Class+Flare&rft.au=Karen+C.+Fox+for+NASA%27s+Goddard+Space+Flight+Center&rft.aulast=Karen+C.+Fox+for+NASA%27s+Goddard+Space+Flight+Center&rft.aufirst=&rft.date=2011-08-18&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-08-18 ER - TY - JOUR T1 - PHOTOSYNSAT, photosynthesis from space: Theoretical foundations of a satellite concept and validation from tower and spaceborne data AN - 899166237; 15162165 AB - We develop herein the theoretical foundations for a new satellite concept, utilizing multi-angle, along track spectral measurements to infer photosynthesis and gross primary production, at the landscape level over time. We validate the theory using both tower and space-borne sensors. The concept, originated in Hall et al. (2008), and Hilker et al. (2008a) and is based on two principles: (1) The first derivative of the photochemical reflectance index (PRI) with respect to shadow fraction viewed by the sensor a less than or equal to PRI/a less than or equal to alpha s, is proportional to light-use efficiency epsilon . (2) This behavior can be shown both theoretically and empirically to be independent of vegetation structure and optical properties. These two principles provide the basis for a robust photosynthesis algorithm that can be applied consistently both spatially and temporally. We develop the general theoretical concept using a canopy reflectance model that incorporates a dependence of leaf reflectance on illumination strength, permitting the leaf reflectance at 531nm to depend on the intensity of photosynthetic down-regulation. Using this model we are able to show that using PRI alone to infer epsilon is confounded by the shadow fraction viewed by a sensor, the PRI value in a non-down-regulated physiological state, and the sunlit canopy reflectance. We are able to demonstrate that these difficulties are mitigated by using a less than or equal to PRI/a less than or equal to alpha sa&# 148; not PRI-as the primary measure of canopy level epsilon . We demonstrate our concept using tower and satellite data acquired over three years, in two distinct biomes and vegetation types to show that PRI/a less than or equal to alpha s and epsilon are related by a single function. Building on these ideas we propose the development of a new satellite concept that can utilize a spatially and temporally robust algorithm to map photosynthesis at landscape scales and its temporal variation. JF - Remote Sensing of Environment AU - Hall, Forrest G AU - Hilker, Thomas AU - Coops, Nicholas C AD - Joint Center for Earth Systems Technology, University of Maryland, Baltimore County, Goddard Space Flight Center, Greenbelt, MD 20771, Code 614.4, USA, Forrest.G.Hall@nasa.gov Y1 - 2011/08/15/ PY - 2011 DA - 2011 Aug 15 SP - 1918 EP - 1925 PB - Elsevier B.V., Box 882 New York NY 10159 United States VL - 115 IS - 8 SN - 0034-4257, 0034-4257 KW - Environment Abstracts; Ecology Abstracts KW - PRI KW - LUE KW - Light-use efficiency KW - CHRIS-PROBA AMSPEC KW - Eddy covariance KW - Shadow fraction KW - GPP KW - SOA KW - DF49 KW - Douglas-fir KW - Aspen KW - Data processing KW - Reflectance KW - Sensors KW - Photosynthesis KW - Temporal variations KW - Optical properties KW - Landscape KW - Leaves KW - Algorithms KW - Remote sensing KW - Vegetation KW - Primary production KW - Satellites KW - Photochemicals KW - Illumination KW - Canopies KW - canopies KW - D 04030:Models, Methods, Remote Sensing KW - ENA 07:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/899166237?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remote+Sensing+of+Environment&rft.atitle=PHOTOSYNSAT%2C+photosynthesis+from+space%3A+Theoretical+foundations+of+a+satellite+concept+and+validation+from+tower+and+spaceborne+data&rft.au=Hall%2C+Forrest+G%3BHilker%2C+Thomas%3BCoops%2C+Nicholas+C&rft.aulast=Hall&rft.aufirst=Forrest&rft.date=2011-08-15&rft.volume=115&rft.issue=8&rft.spage=1918&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&rft_id=info:doi/10.1016%2Fj.rse.2011.03.014 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-10-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Reflectance; Data processing; Photosynthesis; Temporal variations; Optical properties; Landscape; Remote sensing; Algorithms; Leaves; Vegetation; Satellites; Primary production; Illumination; Canopies; Photochemicals; Sensors; canopies DO - http://dx.doi.org/10.1016/j.rse.2011.03.014 ER - TY - JOUR T1 - Development of a novel biosensing system based on the structural change of a polymerized guanine-quadruplex DNA nanostructure AN - 883023620; 15380424 AB - By inserting an adenosine aptamer into an aptamer that forms a G-quadruplex, we developed an adaptor molecule, named the Gq-switch, which links an electrode with flavin adenine dinucleotide-dependent glucose dehydrogenase (FADGDH) that is capable of transferring electron to a electrode directly. First, we selected an FADGDH-binding aptamer and identified that its sequence is composed of two blocks of consecutive six guanine bases and it forms a polymerized G-quadruplex structure. Then, we inserted a sequence of an adenosine aptamer between the two blocks of consecutive guanine bases, and we found it also bound to adenosine. Then we named it as Gq-switch. In the absence of adenosine, the Gq-switch-FADGDH complex forms a 30-nm high bulb-shaped structure that changes in the presence of adenosine to give an 8-nm high wire-shaped structure. This structural change brings the FADGDH sufficiently close to the electrode for electron transfer to occur, and the adenosine can be detected from the current produced by the FADGDH. Adenosine was successfully detected with a concentration dependency using the Gq-switch-FADGDH complex immobilized Au electrode by measuring response current to the addition of glucose. JF - Biosensors and Bioelectronics AU - Morita, Yo AU - Yoshida, Wataru AU - Savory, Nasa AU - Han, Sung Woong AU - Tera, Masayuki AU - Nagasawa, Kazuo AU - Nakamura, Chikashi AU - Sode, Koji AU - Ikebukuro, Kazunori Y1 - 2011/08/15/ PY - 2011 DA - 2011 Aug 15 SP - 4837 EP - 4841 PB - Elsevier B.V., 660 White Plains Rd. Tarrytown NY 10591-5153 United States VL - 26 IS - 12 SN - 0956-5663, 0956-5663 KW - Biochemistry Abstracts 2: Nucleic Acids; Biotechnology and Bioengineering Abstracts KW - Aptamers KW - FADGDH KW - G-quadruplexes KW - Nanostructures KW - Biosensors KW - Enzymes KW - Guanine KW - Electrodes KW - flavin KW - Glucose KW - Adenine KW - DNA KW - Glucose dehydrogenase KW - Electron transfer KW - Adenosine KW - W 30955:Biosensors KW - N 14845:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/883023620?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biosensors+and+Bioelectronics&rft.atitle=Development+of+a+novel+biosensing+system+based+on+the+structural+change+of+a+polymerized+guanine-quadruplex+DNA+nanostructure&rft.au=Morita%2C+Yo%3BYoshida%2C+Wataru%3BSavory%2C+Nasa%3BHan%2C+Sung+Woong%3BTera%2C+Masayuki%3BNagasawa%2C+Kazuo%3BNakamura%2C+Chikashi%3BSode%2C+Koji%3BIkebukuro%2C+Kazunori&rft.aulast=Morita&rft.aufirst=Yo&rft.date=2011-08-15&rft.volume=26&rft.issue=12&rft.spage=4837&rft.isbn=&rft.btitle=&rft.title=Biosensors+and+Bioelectronics&rft.issn=09565663&rft_id=info:doi/10.1016%2Fj.bios.2011.05.050 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-08-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Biosensors; Aptamers; Guanine; flavin; Electrodes; DNA; Adenine; Glucose; Glucose dehydrogenase; Electron transfer; Adenosine DO - http://dx.doi.org/10.1016/j.bios.2011.05.050 ER - TY - JOUR T1 - Hourly simulations of the microwave brightness temperature of seasonal snow in Quebec, Canada, using a coupled snow evolution-emission model AN - 1777124124; 15162159 AB - To interpret the snowpack evolution, and in particular to estimate snow water equivalent (SWE), passive microwave remote sensing has proved to be a useful tool given its sensitivity to snow properties. However, the main uncertainties using existing SWE algorithms arise from snow metamorphism which evolves during the winter season, and changes the snow emissivity. To consider the evolution in snow emissivity a coupled snow evolution-emission model can be used to simulate the brightness temperature (TB) of the snowpack. During a dedicated campaign in the winter season, from November to April, of 2007-2008 two surface-based radiometers operating at 19GHz and 37GHz continuously measured the passive microwave radiation emitted through a seasonal snowpack in southern Quebec (Canada). This paper aims at modeling and interpreting this time series of TB over the whole season, with an hourly step, using a coupled multi-layer snow evolution-emission model. The thermodynamic snow evolution model, referred as to Crocus, was driven by local meteorological measurements. Results from this model provided, in turn, the input variables to run the Microwave Emission Model of Layered Snowpacks (MEMLS) in order to predict TB at 19GHz and 37GHz for both vertical (V) and horizontal (H) polarizations. The accuracy of TB predicted by the Crocus-MEMLS coupled model was evaluated using continuous measurements from the surface-based radiometers. The weather conditions observed during the winter season were diverse, including several warm periods with melting snow and rain-on-snow events, producing very complex variations in the time series of TB. To aid our analysis, we identified days with melting snow versus days with dry snow. The Crocus-MEMLS coupled model was able to accurately predict melt events with a success rate of 86%. The residual error was due to an overestimation of the duration of several melt events simulated by Crocus. This problem was explained by 1) a limitation of percolation, and 2) a very long-acting melt of lower layers due to geothermal flux. When the snowpack was completely dry, the global trend of TB during the season was characterized by a decrease of TB due to growth in the snow grain size. During most of the season, Crocus-MEMLS correctly predicted the evolution of TB resulting from temperature gradient metamorphism; the root mean square errors ranged between 2.8K for the 19GHz vertical polarization (19V) and 6.9K for the 37GHz horizontal polarization (37H). However, during dry periods near the end of the season, the values of TB were strongly overestimated. This overestimation was mainly due to a limitation of the growth of large snow grains in the wet snowpack simulated by Crocus. This effect was confirmed by estimating snow grain sizes from the observed TB and the coupled model. The estimated snow grain sizes were larger and more realistic than those initially predicted by the Crocus model. JF - Remote Sensing of Environment AU - Brucker, L AU - Royer, A AU - Picard, G AU - Langlois, A AU - Fily, M AD - Universite Joseph Fourier - Grenoble 1/CNRS, Laboratoire de Glaciologie et Geophysique de l'Environnement, France ludovic.brucker@nasa.gov Y1 - 2011/08/15/ PY - 2011 DA - 2011 Aug 15 SP - 1966 EP - 1977 PB - Elsevier B.V., Box 882 New York NY 10159 United States VL - 115 IS - 8 SN - 0034-4257, 0034-4257 KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE); Aerospace & High Technology Database (AH) KW - Snow KW - Surface-based radiometer KW - Microwave brightness temperature KW - Crocus snow model KW - MEMLS radiative transfer model KW - Snowpack KW - Mathematical models KW - Computer simulation KW - Grain size KW - Seasons KW - Drying KW - Evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777124124?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remote+Sensing+of+Environment&rft.atitle=Hourly+simulations+of+the+microwave+brightness+temperature+of+seasonal+snow+in+Quebec%2C+Canada%2C+using+a+coupled+snow+evolution-emission+model&rft.au=Brucker%2C+L%3BRoyer%2C+A%3BPicard%2C+G%3BLanglois%2C+A%3BFily%2C+M&rft.aulast=Brucker&rft.aufirst=L&rft.date=2011-08-15&rft.volume=115&rft.issue=8&rft.spage=1966&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&rft_id=info:doi/10.1016%2Fj.rse.2011.03.019 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.rse.2011.03.019 ER - TY - NEWS T1 - First of Many Miniaturized Helio Instruments For WINCS To be Delivered AN - 882477217 JF - UPI Space Daily AU - Lori Keesey for NASA's Goddard Space Flight Center Y1 - 2011/08/11/ PY - 2011 DA - 2011 Aug 11 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/882477217?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=First+of+Many+Miniaturized+Helio+Instruments+For+WINCS+To+be+Delivered&rft.au=Lori+Keesey+for+NASA%27s+Goddard+Space+Flight+Center&rft.aulast=Lori+Keesey+for+NASA%27s+Goddard+Space+Flight+Center&rft.aufirst=&rft.date=2011-08-11&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-08-11 ER - TY - NEWS T1 - NPP Runs the Gauntlet of Environmental Testing AN - 881910100 JF - UPI Space Daily AU - Ellen Gray for NASA Goddard Space Flight Center Y1 - 2011/08/10/ PY - 2011 DA - 2011 Aug 10 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881910100?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=NPP+Runs+the+Gauntlet+of+Environmental+Testing&rft.au=Ellen+Gray+for+NASA+Goddard+Space+Flight+Center&rft.aulast=Ellen+Gray+for+NASA+Goddard+Space+Flight+Center&rft.aufirst=&rft.date=2011-08-10&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-08-10 ER - TY - NEWS T1 - Juno to Show Jupiter's Magnetic Field in High-Def AN - 881661949 JF - UPI Space Daily AU - Elizabeth Zubritsky for NASA's Goddard Space Flight Center Y1 - 2011/08/09/ PY - 2011 DA - 2011 Aug 09 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881661949?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Juno+to+Show+Jupiter%27s+Magnetic+Field+in+High-Def&rft.au=Elizabeth+Zubritsky+for+NASA%27s+Goddard+Space+Flight+Center&rft.aulast=Elizabeth+Zubritsky+for+NASA%27s+Goddard+Space+Flight+Center&rft.aufirst=&rft.date=2011-08-09&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-08-09 ER - TY - NEWS T1 - Atlantis Final Mission Included Successful Kennedy-Developed Plant Experiment AN - 881661644 JF - UPI Space Daily AU - Linda Herridge for NASA Space Station News Y1 - 2011/08/09/ PY - 2011 DA - 2011 Aug 09 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881661644?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Atlantis+Final+Mission+Included+Successful+Kennedy-Developed+Plant+Experiment&rft.au=Linda+Herridge+for+NASA+Space+Station+News&rft.aulast=Linda+Herridge+for+NASA+Space+Station+News&rft.aufirst=&rft.date=2011-08-09&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-08-09 ER - TY - NEWS T1 - What Lies Inside Jupiter AN - 886037141 JF - UPI Space Daily AU - Dr. Tony Phillips for "http://science.nasa.gov/" NASA Science News Y1 - 2011/08/08/ PY - 2011 DA - 2011 Aug 08 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/886037141?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=What+Lies+Inside+Jupiter&rft.au=Dr.+Tony+Phillips+for+%22http%3A%2F%2Fscience.nasa.gov%2F%22+NASA+Science+News&rft.aulast=Dr.+Tony+Phillips+for+%22http%3A%2F%2Fscience.nasa.gov%2F%22+NASA+Science+News&rft.aufirst=&rft.date=2011-08-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-08-31 ER - TY - CPAPER T1 - Tracking climate effects on plant-pollinator interaction phenology with satellites and honey bee hives T2 - 96th Annual Meeting of the Ecological Society of America (ESA 2011) AN - 1313025483; 6098082 JF - 96th Annual Meeting of the Ecological Society of America (ESA 2011) AU - Esaias, W AU - Nickeson, J AU - Tan, B AU - Ma, P AU - Nightingale, J AU - Wolfe, R Y1 - 2011/08/07/ PY - 2011 DA - 2011 Aug 07 KW - Phenology KW - Remote sensing KW - Satellites KW - Climate effects KW - Climate KW - Tracking KW - Apis mellifera UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313025483?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=96th+Annual+Meeting+of+the+Ecological+Society+of+America+%28ESA+2011%29&rft.atitle=Tracking+climate+effects+on+plant-pollinator+interaction+phenology+with+satellites+and+honey+bee+hives&rft.au=Esaias%2C+W%3BNickeson%2C+J%3BTan%2C+B%3BMa%2C+P%3BNightingale%2C+J%3BWolfe%2C+R&rft.aulast=Esaias&rft.aufirst=W&rft.date=2011-08-07&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=96th+Annual+Meeting+of+the+Ecological+Society+of+America+%28ESA+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.esa.org/austin/info/2011_ESA_Annual_Meeting_%28Austin%29_program.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Gray wave of the great transformation: A satellite view of urbanization, climate change, and biological productivity T2 - 96th Annual Meeting of the Ecological Society of America (ESA 2011) AN - 1312949692; 6098063 JF - 96th Annual Meeting of the Ecological Society of America (ESA 2011) AU - Imhoff, M Y1 - 2011/08/07/ PY - 2011 DA - 2011 Aug 07 KW - Urbanization KW - Climatic changes KW - Remote sensing KW - Satellites KW - Transformation KW - Waves UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312949692?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=96th+Annual+Meeting+of+the+Ecological+Society+of+America+%28ESA+2011%29&rft.atitle=Gray+wave+of+the+great+transformation%3A+A+satellite+view+of+urbanization%2C+climate+change%2C+and+biological+productivity&rft.au=Imhoff%2C+M&rft.aulast=Imhoff&rft.aufirst=M&rft.date=2011-08-07&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=96th+Annual+Meeting+of+the+Ecological+Society+of+America+%28ESA+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.esa.org/austin/info/2011_ESA_Annual_Meeting_%28Austin%29_program.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - NEWS T1 - SOHO Watches a Comet Fading Away AN - 881100938 JF - UPI Space Daily AU - Karen C. Fox for NASA's Goddard Space Flight Center Y1 - 2011/08/05/ PY - 2011 DA - 2011 Aug 05 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881100938?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=SOHO+Watches+a+Comet+Fading+Away&rft.au=Karen+C.+Fox+for+NASA%27s+Goddard+Space+Flight+Center&rft.aulast=Karen+C.+Fox+for+NASA%27s+Goddard+Space+Flight+Center&rft.aufirst=&rft.date=2011-08-05&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-08-05 ER - TY - NEWS T1 - SDO Spots Extra Energy in the Solar Corona AN - 880977963 JF - UPI Space Daily AU - Karen C. Fox for NASA's Goddard Space Flight Center Y1 - 2011/08/04/ PY - 2011 DA - 2011 Aug 04 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/880977963?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=SDO+Spots+Extra+Energy+in+the+Solar+Corona&rft.au=Karen+C.+Fox+for+NASA%27s+Goddard+Space+Flight+Center&rft.aulast=Karen+C.+Fox+for+NASA%27s+Goddard+Space+Flight+Center&rft.aufirst=&rft.date=2011-08-04&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-08-04 ER - TY - JOUR T1 - The transition from complex crater to peak-ring basin on the Moon; new observations from the Lunar Orbiter Laser Altimeter (LOLA) instrument AN - 911677667; 2012-004968 JF - Icarus AU - Baker, David M H AU - Head, James W AU - Fassett, Caleb I AU - Kadish, Seth J AU - Smith, Dave E AU - Zuber, Maria T AU - Neumann, Gregory A Y1 - 2011/08// PY - 2011 DA - August 2011 SP - 377 EP - 393 PB - Elsevier, New York, NY VL - 214 IS - 2 SN - 0019-1035, 0019-1035 KW - Lunar Orbiter Laser Altimeter KW - imagery KW - power law KW - impact features KW - Lunar Reconnaissance Orbiter KW - Venus KW - Mars KW - melts KW - lunar craters KW - topography KW - melting KW - mosaics KW - Mercury Planet KW - basins KW - velocity KW - dimensions KW - central peaks KW - Moon KW - morphometry KW - ring structures KW - depth KW - size KW - terrestrial planets KW - morphology KW - planets KW - transient phenomena KW - complex craters KW - classification KW - surveys KW - LOLA KW - peak-ring basins KW - impact craters KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911677667?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=The+transition+from+complex+crater+to+peak-ring+basin+on+the+Moon%3B+new+observations+from+the+Lunar+Orbiter+Laser+Altimeter+%28LOLA%29+instrument&rft.au=Baker%2C+David+M+H%3BHead%2C+James+W%3BFassett%2C+Caleb+I%3BKadish%2C+Seth+J%3BSmith%2C+Dave+E%3BZuber%2C+Maria+T%3BNeumann%2C+Gregory+A&rft.aulast=Baker&rft.aufirst=David+M&rft.date=2011-08-01&rft.volume=214&rft.issue=2&rft.spage=377&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2011.05.030 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 53 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Includes appendices; supplemental data available in online version N1 - Last updated - 2012-06-07 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - basins; central peaks; classification; complex craters; depth; dimensions; imagery; impact craters; impact features; LOLA; lunar craters; Lunar Orbiter Laser Altimeter; Lunar Reconnaissance Orbiter; Mars; melting; melts; Mercury Planet; Moon; morphology; morphometry; mosaics; peak-ring basins; planets; power law; ring structures; size; surveys; terrestrial planets; topography; transient phenomena; velocity; Venus DO - http://dx.doi.org/10.1016/j.icarus.2011.05.030 ER - TY - JOUR T1 - In situ measurements of particle load and transport in dust devils AN - 911677007; 2012-004977 JF - Icarus AU - Metzger, S M AU - Balme, M R AU - Towner, M C AU - Bos, B J AU - Ringrose, T J AU - Patel, M R Y1 - 2011/08// PY - 2011 DA - August 2011 SP - 766 EP - 772 PB - Elsevier, New York, NY VL - 214 IS - 2 SN - 0019-1035, 0019-1035 KW - in situ KW - three-dimensional models KW - sediment transport KW - erosion KW - clastic sediments KW - atmosphere KW - suspended materials KW - Mars KW - dust devils KW - measurement KW - terrestrial planets KW - planets KW - transport KW - dynamics KW - dust KW - sediments KW - winds KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911677007?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=In+situ+measurements+of+particle+load+and+transport+in+dust+devils&rft.au=Metzger%2C+S+M%3BBalme%2C+M+R%3BTowner%2C+M+C%3BBos%2C+B+J%3BRingrose%2C+T+J%3BPatel%2C+M+R&rft.aulast=Metzger&rft.aufirst=S&rft.date=2011-08-01&rft.volume=214&rft.issue=2&rft.spage=766&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2011.03.013 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 36 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - atmosphere; clastic sediments; dust; dust devils; dynamics; erosion; in situ; Mars; measurement; particles; planets; sediment transport; sediments; suspended materials; terrestrial planets; three-dimensional models; transport; winds DO - http://dx.doi.org/10.1016/j.icarus.2011.03.013 ER - TY - JOUR T1 - Long-term evolution of the aerosol debris cloud produced by the 2009 impact on Jupiter AN - 911676974; 2012-004972 JF - Icarus AU - Sanchez-Lavega, A AU - Orton, G S AU - Hueso, R AU - Perez-Hoyos, S AU - Fletcher, L N AU - Garcia-Melendo, E AU - Gomez-Forrellad, J M AU - de Pater, I AU - Wong, M AU - Hammel, H B AU - Yanamandra-Fisher, P AU - Simon-Miller, A AU - Barrado-Izagirre, N AU - Marchis, F AU - Mousis, O AU - Ortiz, J L AU - Garcia-Rojas, J AU - Cecconi, M AU - Clarke, J T AU - Noll, K AU - Pedraz, S AU - Wesley, A AU - Kalas, P AU - McConnell, N AU - Golisch, W AU - Griep, D AU - Sears, P AU - Volquardsen, E AU - Reddy, V AU - Shara, M AU - Binzel, R AU - Grundy, W AU - Emery, J AU - Rivkin, A AU - Thomas, C AU - Trilling, D AU - Bjorkman, K AU - Burgasser, A J AU - Campins, H AU - Sato, T M AU - Kasaba, Y AU - Ziffer, J AU - Mirzoyan, R AU - Fitzgerald, M AU - Bouy, H Y1 - 2011/08// PY - 2011 DA - August 2011 SP - 462 EP - 476 PB - Elsevier, New York, NY VL - 214 IS - 2 SN - 0019-1035, 0019-1035 KW - near-infrared spectra KW - altitude KW - Jupiter KW - simulation KW - giant planets KW - motions KW - debris KW - stratosphere KW - dynamics KW - velocity KW - spectra KW - outer planets KW - radiative transfer KW - clouds KW - numerical models KW - atmosphere KW - vorticity KW - impacts KW - advection KW - planets KW - heterogeneous materials KW - shear KW - aerosols KW - latitude KW - optical depth KW - winds KW - homogeneous materials KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911676974?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Long-term+evolution+of+the+aerosol+debris+cloud+produced+by+the+2009+impact+on+Jupiter&rft.au=Sanchez-Lavega%2C+A%3BOrton%2C+G+S%3BHueso%2C+R%3BPerez-Hoyos%2C+S%3BFletcher%2C+L+N%3BGarcia-Melendo%2C+E%3BGomez-Forrellad%2C+J+M%3Bde+Pater%2C+I%3BWong%2C+M%3BHammel%2C+H+B%3BYanamandra-Fisher%2C+P%3BSimon-Miller%2C+A%3BBarrado-Izagirre%2C+N%3BMarchis%2C+F%3BMousis%2C+O%3BOrtiz%2C+J+L%3BGarcia-Rojas%2C+J%3BCecconi%2C+M%3BClarke%2C+J+T%3BNoll%2C+K%3BPedraz%2C+S%3BWesley%2C+A%3BKalas%2C+P%3BMcConnell%2C+N%3BGolisch%2C+W%3BGriep%2C+D%3BSears%2C+P%3BVolquardsen%2C+E%3BReddy%2C+V%3BShara%2C+M%3BBinzel%2C+R%3BGrundy%2C+W%3BEmery%2C+J%3BRivkin%2C+A%3BThomas%2C+C%3BTrilling%2C+D%3BBjorkman%2C+K%3BBurgasser%2C+A+J%3BCampins%2C+H%3BSato%2C+T+M%3BKasaba%2C+Y%3BZiffer%2C+J%3BMirzoyan%2C+R%3BFitzgerald%2C+M%3BBouy%2C+H&rft.aulast=Sanchez-Lavega&rft.aufirst=A&rft.date=2011-08-01&rft.volume=214&rft.issue=2&rft.spage=462&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2011.03.015 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 48 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - advection; aerosols; altitude; atmosphere; clouds; debris; dynamics; giant planets; heterogeneous materials; homogeneous materials; impacts; Jupiter; latitude; motions; near-infrared spectra; numerical models; optical depth; outer planets; planets; radiative transfer; shear; simulation; spectra; stratosphere; velocity; vorticity; winds DO - http://dx.doi.org/10.1016/j.icarus.2011.03.015 ER - TY - JOUR T1 - Revisiting HCN formation in Earth's early atmosphere AN - 911676970; 2012-004798 AB - Using a new photochemical model, the HCN chemistry in Earth's early atmosphere is revisited. We find that HCN production in a CH (sub 4) -rich early atmosphere could have been efficient, similar to the results of a previous study (Zahnle, 1986). For an assumed CH (sub 4) mixing ratio of 1000 ppmv, HCN surface deposition increases from 2X10 (super 9) cm (super -2) s (super -1) at fCO (sub 2) =3% to more than 1X10 (super 10) cm (super -2) s (super -1) (30 Tg/yr) at fCO (sub 2) =0.3% and 1%. These conditions may well have applied throughout much of the Archean eon, 3.8-2.5 Ga. Prior to the origin of life and the advent of methanogens, HCN production rates would likely have been at 1X10 (super 7) cm (super -2) s (super -1) or lower, thereby providing a modest source of HCN for prebiotic synthesis. JF - Earth and Planetary Science Letters AU - Tian, Feng AU - Kasting, J F AU - Zahnle, K Y1 - 2011/08// PY - 2011 DA - August 2011 SP - 417 EP - 423 PB - Elsevier, Amsterdam VL - 308 IS - 3-4 SN - 0012-821X, 0012-821X KW - methane KW - Earth KW - Precambrian KW - paleoatmosphere KW - photochemistry KW - aliphatic hydrocarbons KW - alkanes KW - gases KW - carbon dioxide KW - organic compounds KW - chemical reactions KW - mixing KW - hydrocarbons KW - hydrogen cyanide KW - Archean KW - cyanides KW - geochemistry KW - 12:Stratigraphy KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911676970?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=Revisiting+HCN+formation+in+Earth%27s+early+atmosphere&rft.au=Tian%2C+Feng%3BKasting%2C+J+F%3BZahnle%2C+K&rft.aulast=Tian&rft.aufirst=Feng&rft.date=2011-08-01&rft.volume=308&rft.issue=3-4&rft.spage=417&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2011.06.011 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 44 N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Supplementary data available in online version N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; Archean; carbon dioxide; chemical reactions; cyanides; Earth; gases; geochemistry; hydrocarbons; hydrogen cyanide; methane; mixing; organic compounds; paleoatmosphere; photochemistry; Precambrian DO - http://dx.doi.org/10.1016/j.epsl.2011.06.011 ER - TY - JOUR T1 - Penetrators for in situ subsurface investigations of Europa AN - 907923088; 2012-000938 JF - Advances in Space Research AU - Gowen, R A AU - Smith, A AU - Fortes, A D AU - Barber, S AU - Brown, P AU - Church, P AU - Collinson, G AU - Coates, A J AU - Collins, G AU - Crawford, I A AU - Dehant, V AU - Chela-Flores, J AU - Griffiths, A D AU - Grindrod, P M AU - Gurvits, L I AU - Hagermann, A AU - Hussmann, H AU - Jaumann, R AU - Jones, A P AU - Joy, K H AU - Karatekin, O AU - Miljkovic, K AU - Palomba, E AU - Pike, W T AU - Prieto-Ballesteros, O AU - Raulin, F AU - Sephton, M A AU - Sheridan, S AU - Sims, M AU - Storrie-Lombardi, M C AU - Ambrosi, R AU - Fielding, J AU - Fraser, G AU - Gao, Y AU - Jones, G H AU - Kargl, G AU - Karl, W J AU - Macagnano, A AU - Mukherjee, A AU - Muller, J P AU - Phipps, A AU - Pullan, D AU - Richter, L AU - Sohl, Frank AU - Snape, J AU - Sykes, J AU - Wells, N A2 - Fedorova, Anna Y1 - 2011/08// PY - 2011 DA - August 2011 SP - 725 EP - 742 PB - Elsevier, Oxford-New York VL - 48 IS - 4 SN - 0273-1177, 0273-1177 KW - icy satellites KW - in situ KW - Europa Satellite KW - biochemistry KW - Jupiter KW - astrobiology KW - properties KW - Galilean satellites KW - giant planets KW - exploration KW - planets KW - sampling KW - outer planets KW - satellites KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/907923088?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Space+Research&rft.atitle=Penetrators+for+in+situ+subsurface+investigations+of+Europa&rft.au=Gowen%2C+R+A%3BSmith%2C+A%3BFortes%2C+A+D%3BBarber%2C+S%3BBrown%2C+P%3BChurch%2C+P%3BCollinson%2C+G%3BCoates%2C+A+J%3BCollins%2C+G%3BCrawford%2C+I+A%3BDehant%2C+V%3BChela-Flores%2C+J%3BGriffiths%2C+A+D%3BGrindrod%2C+P+M%3BGurvits%2C+L+I%3BHagermann%2C+A%3BHussmann%2C+H%3BJaumann%2C+R%3BJones%2C+A+P%3BJoy%2C+K+H%3BKaratekin%2C+O%3BMiljkovic%2C+K%3BPalomba%2C+E%3BPike%2C+W+T%3BPrieto-Ballesteros%2C+O%3BRaulin%2C+F%3BSephton%2C+M+A%3BSheridan%2C+S%3BSims%2C+M%3BStorrie-Lombardi%2C+M+C%3BAmbrosi%2C+R%3BFielding%2C+J%3BFraser%2C+G%3BGao%2C+Y%3BJones%2C+G+H%3BKargl%2C+G%3BKarl%2C+W+J%3BMacagnano%2C+A%3BMukherjee%2C+A%3BMuller%2C+J+P%3BPhipps%2C+A%3BPullan%2C+D%3BRichter%2C+L%3BSohl%2C+Frank%3BSnape%2C+J%3BSykes%2C+J%3BWells%2C+N&rft.aulast=Gowen&rft.aufirst=R&rft.date=2011-08-01&rft.volume=48&rft.issue=4&rft.spage=725&rft.isbn=&rft.btitle=&rft.title=Advances+in+Space+Research&rft.issn=02731177&rft_id=info:doi/10.1016%2Fj.asr.2010.06.026 L2 - http://www.sciencedirect.com/science/journal/02731177 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 123 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - ASRSDW N1 - SubjectsTermNotLitGenreText - astrobiology; biochemistry; Europa Satellite; exploration; Galilean satellites; giant planets; icy satellites; in situ; instruments; Jupiter; outer planets; planets; properties; sampling; satellites DO - http://dx.doi.org/10.1016/j.asr.2010.06.026 ER - TY - JOUR T1 - Effect of thin cirrus clouds on dust optical depth retrievals from MODIS observations AN - 904461205; 2011-102768 AB - The effect of thin cirrus clouds in retrieving the dust optical depth from MODIS observations is investigated by using a simplified aerosol retrieval algorithm based on the principles of the Deep Blue aerosol property retrieval method. Specifically, the errors of the retrieved dust optical depth due to thin cirrus contamination are quantified through the comparison of two retrievals by assuming dust-only atmospheres and the counterparts with overlapping mineral dust and thin cirrus clouds. To account for the effect of the polarization state of radiation field on radiance simulation, a vector radiative transfer model is used to generate the lookup tables. In the forward radiative transfer simulations involved in generating the lookup tables, the Rayleigh scattering by atmospheric gaseous molecules and the reflection of the surface assumed to be Lambertian are fully taken into account. Additionally, the spheroid model is utilized to account for the nonsphericity of dust particles in computing their optical properties. For simplicity, the single-scattering albedo, scattering phase matrix, and optical depth are specified a priori for thin cirrus clouds assumed to consist of droxtal ice crystals. The present results indicate that the errors in the retrieved dust optical depths due to the contamination of thin cirrus clouds depend on the scattering angle, underlying surface reflectance, and dust optical depth. Under heavy dusty conditions, the absolute errors are comparable to the predescribed optical depths of thin cirrus clouds. JF - IEEE Transactions on Geoscience and Remote Sensing AU - Feng, Qian AU - Hsu, N Christina AU - Yang, Ping AU - Tsay, Si-Chee Y1 - 2011/08// PY - 2011 DA - August 2011 SP - 2819 EP - 2827 PB - Institute of Electrical and Electronics Engineers Geoscience and Remote Sensing Society, New York, NY VL - 49 IS - 8 SN - 0196-2892, 0196-2892 KW - clouds KW - albedo KW - clastic sediments KW - atmosphere KW - satellite methods KW - optical properties KW - dust KW - sediments KW - aerosols KW - algorithms KW - remote sensing KW - MODIS KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/904461205?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IEEE+Transactions+on+Geoscience+and+Remote+Sensing&rft.atitle=Effect+of+thin+cirrus+clouds+on+dust+optical+depth+retrievals+from+MODIS+observations&rft.au=Feng%2C+Qian%3BHsu%2C+N+Christina%3BYang%2C+Ping%3BTsay%2C+Si-Chee&rft.aulast=Feng&rft.aufirst=Qian&rft.date=2011-08-01&rft.volume=49&rft.issue=8&rft.spage=2819&rft.isbn=&rft.btitle=&rft.title=IEEE+Transactions+on+Geoscience+and+Remote+Sensing&rft.issn=01962892&rft_id=info:doi/10.1109%2FTGRS.2011.2118762 L2 - http://ieeexplore.ieee.org/xpl/tocresult.jsp?isYear=2009&isnumber=5332062&Submit32=View+Contents LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 31 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - IEGEAO N1 - SubjectsTermNotLitGenreText - aerosols; albedo; algorithms; atmosphere; clastic sediments; clouds; dust; MODIS; optical properties; remote sensing; satellite methods; sediments DO - http://dx.doi.org/10.1109/TGRS.2011.2118762 ER - TY - JOUR T1 - Determinants of Nest Survival in a Managed Florida Scrub-Jay Population AN - 902369081; 15762870 AB - Bird populations occupying managed transitional habitats often have low nest success because optimal habitat conditions are not maintained. In such cases, quantifying determinants of nest survival provides information for habitat maintenance or restoration. Our goal was to determine the current factors affecting nest survival in a managed but declining population of the Florida Scrub-Jay (Aphelocoma coerulescens) in Merritt Island National Wildlife Refuge. We used an information-theoretic approach and nest-survival models in program MARK to test a priori hypotheses for survival of Florida Scrub-Jay nests. Failure of Florida Scrub-Jay nests was common; only 35% of 614 were successful in producing at least one fledgling. Ninety-four percent of 399 nest failures were due to predation. Nest survival was highest in oak-dominated territories, varied by population center, and decreased with proximity to forest edges, as the season progressed, and with increasing accumulated rainfall prior to the nesting season. Shrub height, a primary focus of current efforts at habitat-quality assessment and management, was not well supported as a determinant of survival of Florida Scrub-Jay nests at Merritt Island. We suggest hypotheses to explain the lack of support for an effect of shrub height, and we conclude that mitigation of low nest survival at Merritt Island may require additional actions. JF - Condor AU - Carter, Geoffrey M AU - Breininger, David R AU - Stolen, Eric D AU - Oddy, Donna M AD - Ecological Program, Mail code: IHA-300, Kennedy Space Center, FL 32899, geoffrey.m.carter@nasa.gov geoffrey.m.carter@nasa.gov geoffrey.m.carter@nasa.gov Y1 - 2011/08// PY - 2011 DA - August 2011 SP - 629 EP - 636 PB - Cooper Ornithological Society, 2000 Center St, Ste 303 Berkeley CA 94704-1223 United States VL - 113 IS - 3 SN - 0010-5422, 0010-5422 KW - Ecology Abstracts; Sustainability Science Abstracts KW - anthropogenic edge KW - Aphelocoma coerulescens KW - Florida Scrub-Jay KW - program MARK KW - nest survival KW - nocturnal predation KW - snakes KW - Shrubs KW - USA, Florida KW - Rainfall KW - Predation KW - Wildlife KW - Survival KW - Forests KW - Territory KW - nests KW - Habitat KW - Maintenance KW - Nests KW - shrubs KW - Models KW - Islands KW - survival KW - USA, Florida, Merritt I., Merritt Island Natl. Wildlife Refuge KW - M3 1010:Issues in Sustainable Development KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/902369081?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Condor&rft.atitle=Determinants+of+Nest+Survival+in+a+Managed+Florida+Scrub-Jay+Population&rft.au=Carter%2C+Geoffrey+M%3BBreininger%2C+David+R%3BStolen%2C+Eric+D%3BOddy%2C+Donna+M&rft.aulast=Carter&rft.aufirst=Geoffrey&rft.date=2011-08-01&rft.volume=113&rft.issue=3&rft.spage=629&rft.isbn=&rft.btitle=&rft.title=Condor&rft.issn=00105422&rft_id=info:doi/10.1525%2Fcond.2011.100206 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Number of references - 5 N1 - Last updated - 2016-05-25 N1 - SubjectsTermNotLitGenreText - Shrubs; Islands; Rainfall; Wildlife; Predation; Forests; Survival; Territory; Habitat; Nests; Models; nests; survival; Maintenance; shrubs; Aphelocoma coerulescens; USA, Florida; USA, Florida, Merritt I., Merritt Island Natl. Wildlife Refuge DO - http://dx.doi.org/10.1525/cond.2011.100206 ER - TY - JOUR T1 - Attentional Limits in Memory Retrieval -- Revisited AN - 902097067; 201119530 AB - Carrier and Pashler (1995) concluded -- based on locus-of-slack dual-task methodology -- that memory retrieval was subject to a central bottleneck. However, this conclusion conflicts with evidence from other lines of research suggesting that memory retrieval proceeds autonomously, in parallel with many other mental processes. In the present experiments we explored the possibility that Carrier and Pashler's conclusions were distorted by use of an experimental method unfavorable to parallel memory retrieval. New locus-of-slack experiments were performed that encouraged parallel memory retrieval strategies with instructions and feedback, along with the use of "preferred" stimulus-response modality mappings. Results from two psychological refractory period experiments showed that the effect of Task 2 recognition difficulty was consistently absorbed into cognitive slack, with both word and picture recognition. We conclude that the memory retrieval stage of recognition tasks can proceed in parallel with central operations of another task, at least under favorable conditions. Our new findings bring results from dual-task locus-of-slack methodology into agreement with other evidence that memory retrieval is not subject to severe, generic central resource limitations. [Copyright American Psychological Association] JF - Journal of Experimental Psychology: Human Perception and Performance AU - Green, Collin AU - Johnston, James C AU - Ruthruff, Eric AD - Human-Systems Integration Division, NASA Ames Research Center, Moffett Field, California collin.b.green@nasa.gov Y1 - 2011/08// PY - 2011 DA - August 2011 SP - 1083 EP - 1098 PB - American Psychological Association, Washington DC VL - 37 IS - 4 SN - 0096-1523, 0096-1523 KW - memory attention dual task psychological refractory period cognitive bottleneck KW - Memory KW - Carriers KW - Retrieval KW - Feedback KW - Mapping KW - Methodology KW - article UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/902097067?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aassia&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Experimental+Psychology%3A+Human+Perception+and+Performance&rft.atitle=Attentional+Limits+in+Memory+Retrieval+--+Revisited&rft.au=Green%2C+Collin%3BJohnston%2C+James+C%3BRuthruff%2C+Eric&rft.aulast=Green&rft.aufirst=Collin&rft.date=2011-08-01&rft.volume=37&rft.issue=4&rft.spage=1083&rft.isbn=&rft.btitle=&rft.title=Journal+of+Experimental+Psychology%3A+Human+Perception+and+Performance&rft.issn=00961523&rft_id=info:doi/10.1037%2Fa0023095 LA - English DB - Applied Social Sciences Index & Abstracts (ASSIA) N1 - Date revised - 2011-11-02 N1 - Last updated - 2016-09-27 N1 - CODEN - JPHPDH N1 - SubjectsTermNotLitGenreText - Memory; Retrieval; Methodology; Carriers; Mapping; Feedback DO - http://dx.doi.org/10.1037/a0023095 ER - TY - JOUR T1 - Itokawa dust particles; a direct link between S-type asteroids and ordinary chondrites AN - 894811402; 2011-083511 AB - The Hayabusa spacecraft successfully recovered dust particles from the surface of near-Earth asteroid 25143 Itokawa. Synchrotron-radiation x-ray diffraction and transmission and scanning electron microscope analyses indicate that the mineralogy and mineral chemistry of the Itokawa dust particles are identical to those of thermally metamorphosed LL chondrites, consistent with spectroscopic observations made from Earth and by the Hayabusa spacecraft. Our results directly demonstrate that ordinary chondrites, the most abundant meteorites found on Earth, come from S-type asteroids. Mineral chemistry indicates that the majority of regolith surface particles suffered long-term thermal annealing and subsequent impact shock, suggesting that Itokawa is an asteroid made of reassembled pieces of the interior portions of a once larger asteroid. JF - Science AU - Nakamura, Tomoki AU - Noguchi, Takaaki AU - Tanaka, Masahiko AU - Zolensky, Michael E AU - Kimura, Makoto AU - Tsuchiyama, Akira AU - Nakato, Aiko AU - Ogami, Toshihiro AU - Ishida, Hatsumi AU - Uesugi, Masayuki AU - Yada, Toru AU - Shirai, Kei AU - Fujimura, Akio AU - Okazaki, Ryuji AU - Sandford, Scott A AU - Ishibashi, Yukihiro AU - Abe, Masanao AU - Okada, Tatsuaki AU - Ueno, Munetaka AU - Mukai, Toshifumi AU - Yoshikawa, Makoto AU - Kawaguchi, Junichiro Y1 - 2011/08// PY - 2011 DA - August 2011 SP - 1113 EP - 1116 PB - American Association for the Advancement of Science, Washington, DC VL - 333 IS - 6046 SN - 0036-8075, 0036-8075 KW - ordinary chondrites KW - near-Earth objects KW - Itokawa Asteroid KW - stony meteorites KW - asteroids KW - X-ray diffraction data KW - near-Earth asteroids KW - clastic sediments KW - LL chondrites KW - impacts KW - TEM data KW - meteorites KW - mineral composition KW - Hayabusa Mission KW - dust KW - sediments KW - S-type asteroids KW - chondrites KW - geochemistry KW - SEM data KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/894811402?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Itokawa+dust+particles%3B+a+direct+link+between+S-type+asteroids+and+ordinary+chondrites&rft.au=Nakamura%2C+Tomoki%3BNoguchi%2C+Takaaki%3BTanaka%2C+Masahiko%3BZolensky%2C+Michael+E%3BKimura%2C+Makoto%3BTsuchiyama%2C+Akira%3BNakato%2C+Aiko%3BOgami%2C+Toshihiro%3BIshida%2C+Hatsumi%3BUesugi%2C+Masayuki%3BYada%2C+Toru%3BShirai%2C+Kei%3BFujimura%2C+Akio%3BOkazaki%2C+Ryuji%3BSandford%2C+Scott+A%3BIshibashi%2C+Yukihiro%3BAbe%2C+Masanao%3BOkada%2C+Tatsuaki%3BUeno%2C+Munetaka%3BMukai%2C+Toshifumi%3BYoshikawa%2C+Makoto%3BKawaguchi%2C+Junichiro&rft.aulast=Nakamura&rft.aufirst=Tomoki&rft.date=2011-08-01&rft.volume=333&rft.issue=6046&rft.spage=1113&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.1207758 L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 29 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - asteroids; chondrites; clastic sediments; dust; geochemistry; Hayabusa Mission; impacts; Itokawa Asteroid; LL chondrites; meteorites; mineral composition; near-Earth asteroids; near-Earth objects; ordinary chondrites; S-type asteroids; sediments; SEM data; stony meteorites; TEM data; X-ray diffraction data DO - http://dx.doi.org/10.1126/science.1207758 ER - TY - JOUR T1 - Seasonal flows on warm Martian slopes AN - 894811321; 2011-083208 AB - Water probably flowed across ancient Mars, but whether it ever exists as a liquid on the surface today remains debatable. Recurring slope lineae (RSL) are narrow (0.5 to 5 meters), relatively dark markings on steep (25 degrees to 40 degrees ) slopes; repeat images from the Mars Reconnaissance Orbiter High Resolution Imaging Science Experiment show them to appear and incrementally grow during warm seasons and fade in cold seasons. They extend downslope from bedrock outcrops, often associated with small channels, and hundreds of them form in some rare locations. RSL appear and lengthen in the late southern spring and summer from 48 degrees S to 32 degrees S latitudes favoring equator-facing slopes, which are times and places with peak surface temperatures from approximately 250 to 300 kelvin. Liquid brines near the surface might explain this activity, but the exact mechanism and source of water are not understood. JF - Science AU - McEwen, Alfred S AU - Ojha, Lujendra AU - Dundas, Colin M AU - Mattson, Sarah S AU - Byrne, Shane AU - Wray, James J AU - Cull, Selby C AU - Murchie, Scott L AU - Thomas, Nicolas AU - Gulick, Virginia C Y1 - 2011/08// PY - 2011 DA - August 2011 SP - 740 EP - 743 PB - American Association for the Advancement of Science, Washington, DC VL - 333 IS - 6043 SN - 0036-8075, 0036-8075 KW - water KW - imagery KW - slopes KW - Mars Reconnaissance Orbiter KW - Mars KW - landforms KW - erosion features KW - High Resolution Imaging Science Experiment KW - terrestrial planets KW - morphology KW - planets KW - surface features KW - HiRISE KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/894811321?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Seasonal+flows+on+warm+Martian+slopes&rft.au=McEwen%2C+Alfred+S%3BOjha%2C+Lujendra%3BDundas%2C+Colin+M%3BMattson%2C+Sarah+S%3BByrne%2C+Shane%3BWray%2C+James+J%3BCull%2C+Selby+C%3BMurchie%2C+Scott+L%3BThomas%2C+Nicolas%3BGulick%2C+Virginia+C&rft.aulast=McEwen&rft.aufirst=Alfred&rft.date=2011-08-01&rft.volume=333&rft.issue=6043&rft.spage=740&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.1204816 L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 33 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - erosion features; High Resolution Imaging Science Experiment; HiRISE; imagery; landforms; Mars; Mars Reconnaissance Orbiter; morphology; planets; remote sensing; slopes; surface features; terrestrial planets; water DO - http://dx.doi.org/10.1126/science.1204816 ER - TY - JOUR T1 - Irradiation history of Itokawa regolith material deduced from noble gases in the Hayabusa samples AN - 894809536; 2011-083516 AB - Noble gas isotopes were measured in three rocky grains from asteroid Itokawa to elucidate a history of irradiation from cosmic rays and solar wind on its surface. Large amounts of solar helium (He), neon (Ne), and argon (Ar) trapped in various depths in the grains were observed, which can be explained by multiple implantations of solar wind particles into the grains, combined with preferential He loss caused by frictional wear of space-weathered rims on the grains. Short residence time of less than 8 million years was implied for the grains by an estimate on cosmic-ray-produced (super 21) Ne. Our results suggest that Itokawa is continuously losing its surface materials into space at a rate of tens of centimeters per million years. The lifetime of Itokawa should be much shorter than the age of our solar system. JF - Science AU - Nagao, Keisuke AU - Okazaki, Ryuji AU - Nakamura, Tomoki AU - Miura, Yayoi N AU - Osawa, Takahito AU - Bajo, Ken-ichi AU - Matsuda, Shintaro AU - Ebihara, Mitsuru AU - Ireland, Trevor R AU - Kitajima, Fumio AU - Naraoka, Hiroshi AU - Noguchi, Takaaki AU - Tsuchiyama, Akira AU - Yurimoto, Hisayoshi AU - Zolensky, Michael E AU - Uesugi, Masayuki AU - Shirai, Kei AU - Abe, Masanao AU - Yada, Toru AU - Ishibashi, Yukihiro AU - Fujimura, Akio AU - Mukai, Toshifumi AU - Ueno, Munetaka AU - Okada, Tatsuaki AU - Yoshikawa, Makoto AU - Kawaguchi, Junichiro Y1 - 2011/08// PY - 2011 DA - August 2011 SP - 1128 EP - 1131 PB - American Association for the Advancement of Science, Washington, DC VL - 333 IS - 6046 SN - 0036-8075, 0036-8075 KW - solar system KW - Ne-20 KW - Itokawa Asteroid KW - irradiation KW - asteroids KW - isotopes KW - solar wind KW - He-4 KW - weathering KW - stable isotopes KW - argon KW - space weathering KW - noble gases KW - neon KW - Hayabusa Mission KW - helium KW - geochemistry KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/894809536?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Irradiation+history+of+Itokawa+regolith+material+deduced+from+noble+gases+in+the+Hayabusa+samples&rft.au=Nagao%2C+Keisuke%3BOkazaki%2C+Ryuji%3BNakamura%2C+Tomoki%3BMiura%2C+Yayoi+N%3BOsawa%2C+Takahito%3BBajo%2C+Ken-ichi%3BMatsuda%2C+Shintaro%3BEbihara%2C+Mitsuru%3BIreland%2C+Trevor+R%3BKitajima%2C+Fumio%3BNaraoka%2C+Hiroshi%3BNoguchi%2C+Takaaki%3BTsuchiyama%2C+Akira%3BYurimoto%2C+Hisayoshi%3BZolensky%2C+Michael+E%3BUesugi%2C+Masayuki%3BShirai%2C+Kei%3BAbe%2C+Masanao%3BYada%2C+Toru%3BIshibashi%2C+Yukihiro%3BFujimura%2C+Akio%3BMukai%2C+Toshifumi%3BUeno%2C+Munetaka%3BOkada%2C+Tatsuaki%3BYoshikawa%2C+Makoto%3BKawaguchi%2C+Junichiro&rft.aulast=Nagao&rft.aufirst=Keisuke&rft.date=2011-08-01&rft.volume=333&rft.issue=6046&rft.spage=1128&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.1207785 L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 26 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - argon; asteroids; geochemistry; Hayabusa Mission; He-4; helium; irradiation; isotopes; Itokawa Asteroid; Ne-20; neon; noble gases; regolith; solar system; solar wind; space weathering; stable isotopes; weathering DO - http://dx.doi.org/10.1126/science.1207785 ER - TY - JOUR T1 - More surprises from the Moon AN - 894808908; 2011-080406 JF - Nature Geoscience AU - Petro, Noah Y1 - 2011/08// PY - 2011 DA - August 2011 SP - 499 EP - 501 PB - Nature Publishing Group, London VL - 4 IS - 8 SN - 1752-0894, 1752-0894 KW - lava flows KW - impact features KW - Moon KW - Lunar Reconnaissance Orbiter KW - Compton-Belkovich region KW - maria KW - farside KW - volcanism KW - metals KW - surface features KW - geochemical anomalies KW - gamma-ray spectra KW - thorium KW - impact craters KW - spectra KW - basalt flows KW - actinides KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/894808908?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+Geoscience&rft.atitle=More+surprises+from+the+Moon&rft.au=Petro%2C+Noah&rft.aulast=Petro&rft.aufirst=Noah&rft.date=2011-08-01&rft.volume=4&rft.issue=8&rft.spage=499&rft.isbn=&rft.btitle=&rft.title=Nature+Geoscience&rft.issn=17520894&rft_id=info:doi/ L2 - http://www.nature.com/ngeo/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Document feature - sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - actinides; basalt flows; Compton-Belkovich region; farside; gamma-ray spectra; geochemical anomalies; impact craters; impact features; lava flows; Lunar Reconnaissance Orbiter; maria; metals; Moon; spectra; surface features; thorium; volcanism ER - TY - JOUR T1 - Three-dimensional structure of Hayabusa samples; origin and evolution of Itokawa regolith AN - 894808823; 2011-083515 AB - Regolith particles on the asteroid Itokawa were recovered by the Hayabusa mission. Their three-dimensional (3D) structure and other properties, revealed by x-ray microtomography, provide information on regolith formation. Modal abundances of minerals, bulk density (3.4 grams per cubic centimeter), and the 3D textures indicate that the particles represent a mixture of equilibrated and less-equilibrated LL chondrite materials. Evidence for melting was not seen on any of the particles. Some particles have rounded edges. Overall, the particles' size and shape are different from those seen in particles from the lunar regolith. These features suggest that meteoroid impacts on the asteroid surface primarily form much of the regolith particle, and that seismic-induced grain motion in the smooth terrain abrades them over time. JF - Science AU - Tsuchiyama, Akira AU - Uesugi, Masayuki AU - Matsushima, Takashi AU - Michikami, Tatsuhiro AU - Kadono, Toshihiko AU - Nakamura, Tomoki AU - Uesugi, Kentaro AU - Nakano, Tsukasa AU - Sandford, Scott A AU - Noguchi, Ryo AU - Matsumoto, Toru AU - Matsuno, Junya AU - Nagano, Takashi AU - Imai, Yuta AU - Takeuchi, Akihisa AU - Suzuki, Yoshio AU - Ogami, Toshihiro AU - Katagiri, Jun AU - Ebihara, Mitsuru AU - Ireland, Trevor R AU - Kitajima, Fumio AU - Nagao, Keisuke AU - Naraoka, Hiroshi AU - Noguchi, Takaaki AU - Okazaki, Ryuji AU - Yurimoto, Hisayoshi AU - Zolensky, Michael E AU - Mukai, Toshifumi AU - Abe, Masanao AU - Yada, Toru AU - Fujimura, Akio AU - Yoshikawa, Makoto AU - Kawaguchi, Junichiro Y1 - 2011/08// PY - 2011 DA - August 2011 SP - 1125 EP - 1128 PB - American Association for the Advancement of Science, Washington, DC VL - 333 IS - 6046 SN - 0036-8075, 0036-8075 KW - ordinary chondrites KW - Itokawa Asteroid KW - stony meteorites KW - asteroids KW - three-dimensional models KW - textures KW - LL chondrites KW - X-ray spectra KW - meteorites KW - size distribution KW - mineral composition KW - Hayabusa Mission KW - spectra KW - computed tomography data KW - chondrites KW - microtomography KW - regolith KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/894808823?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Three-dimensional+structure+of+Hayabusa+samples%3B+origin+and+evolution+of+Itokawa+regolith&rft.au=Tsuchiyama%2C+Akira%3BUesugi%2C+Masayuki%3BMatsushima%2C+Takashi%3BMichikami%2C+Tatsuhiro%3BKadono%2C+Toshihiko%3BNakamura%2C+Tomoki%3BUesugi%2C+Kentaro%3BNakano%2C+Tsukasa%3BSandford%2C+Scott+A%3BNoguchi%2C+Ryo%3BMatsumoto%2C+Toru%3BMatsuno%2C+Junya%3BNagano%2C+Takashi%3BImai%2C+Yuta%3BTakeuchi%2C+Akihisa%3BSuzuki%2C+Yoshio%3BOgami%2C+Toshihiro%3BKatagiri%2C+Jun%3BEbihara%2C+Mitsuru%3BIreland%2C+Trevor+R%3BKitajima%2C+Fumio%3BNagao%2C+Keisuke%3BNaraoka%2C+Hiroshi%3BNoguchi%2C+Takaaki%3BOkazaki%2C+Ryuji%3BYurimoto%2C+Hisayoshi%3BZolensky%2C+Michael+E%3BMukai%2C+Toshifumi%3BAbe%2C+Masanao%3BYada%2C+Toru%3BFujimura%2C+Akio%3BYoshikawa%2C+Makoto%3BKawaguchi%2C+Junichiro&rft.aulast=Tsuchiyama&rft.aufirst=Akira&rft.date=2011-08-01&rft.volume=333&rft.issue=6046&rft.spage=1125&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.1207807 L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 27 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - asteroids; chondrites; computed tomography data; Hayabusa Mission; Itokawa Asteroid; LL chondrites; meteorites; microtomography; mineral composition; ordinary chondrites; regolith; size distribution; spectra; stony meteorites; textures; three-dimensional models; X-ray spectra DO - http://dx.doi.org/10.1126/science.1207807 ER - TY - JOUR T1 - Incipient space weathering observed on the surface of Itokawa dust particles AN - 894808813; 2011-083514 AB - The reflectance spectra of the most abundant meteorites, ordinary chondrites, are different from those of the abundant S-type (mnemonic for siliceous) asteroids. This discrepancy has been thought to be due to space weathering, which is an alteration of the surfaces of airless bodies exposed to the space environment. Here we report evidence of space weathering on particles returned from the S-type asteroid 25143 Itokawa by the Hayabusa spacecraft. Surface modification was found in 5 out of 10 particles, which varies depending on mineral species. Sulfur-bearing Fe-rich nanoparticles exist in a thin (5 to 15 nanometers) surface layer on olivine, low-Ca pyroxene, and plagioclase, which is suggestive of vapor deposition. Sulfur-free Fe-rich nanoparticles exist deeper inside (<60 nanometers) ferromagnesian silicates. Their texture suggests formation by metamictization and in situ reduction of Fe (super 2+) . JF - Science AU - Noguchi, Takaaki AU - Nakamura, Tomoki AU - Kimura, Makoto AU - Zolensky, Michael E AU - Tanaka, M AU - Hashimoto, T AU - Konno, M AU - Nakato, Aiko AU - Ogami, Toshihiro AU - Fujimura, Akio AU - Abe, Masanao AU - Yada, Toru AU - Mukai, Toshifumi AU - Ueno, Munetaka AU - Okada, Tatsuaki AU - Shirai, Kei AU - Ishibashi, Yukihiro AU - Okazaki, Ryuji Y1 - 2011/08// PY - 2011 DA - August 2011 SP - 1121 EP - 1125 PB - American Association for the Advancement of Science, Washington, DC VL - 333 IS - 6046 SN - 0036-8075, 0036-8075 KW - near-Earth objects KW - Itokawa Asteroid KW - asteroids KW - near-Earth asteroids KW - clastic sediments KW - weathering KW - space weathering KW - mineral composition KW - Hayabusa Mission KW - dust KW - sediments KW - S-type asteroids KW - reflectance KW - geochemistry KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/894808813?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Incipient+space+weathering+observed+on+the+surface+of+Itokawa+dust+particles&rft.au=Noguchi%2C+Takaaki%3BNakamura%2C+Tomoki%3BKimura%2C+Makoto%3BZolensky%2C+Michael+E%3BTanaka%2C+M%3BHashimoto%2C+T%3BKonno%2C+M%3BNakato%2C+Aiko%3BOgami%2C+Toshihiro%3BFujimura%2C+Akio%3BAbe%2C+Masanao%3BYada%2C+Toru%3BMukai%2C+Toshifumi%3BUeno%2C+Munetaka%3BOkada%2C+Tatsuaki%3BShirai%2C+Kei%3BIshibashi%2C+Yukihiro%3BOkazaki%2C+Ryuji&rft.aulast=Noguchi&rft.aufirst=Takaaki&rft.date=2011-08-01&rft.volume=333&rft.issue=6046&rft.spage=1121&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.1207794 L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 35 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - asteroids; clastic sediments; dust; geochemistry; Hayabusa Mission; Itokawa Asteroid; mineral composition; near-Earth asteroids; near-Earth objects; reflectance; S-type asteroids; sediments; space weathering; weathering DO - http://dx.doi.org/10.1126/science.1207794 ER - TY - JOUR T1 - Neutron activation analysis of a particle returned from Asteroid Itokawa AN - 894808805; 2011-083513 AB - A single grain ( approximately 3 micrograms) returned by the Hayabusa spacecraft was analyzed by neutron activation analysis. This grain is mainly composed of olivine with minor amounts of plagioclase, troilite, and metal. Our results establish that the Itokawa sample has similar chemical characteristics (iron/scandium and nickel/cobalt ratios) to chondrites, confirming that this grain is extraterrestrial in origin and has primitive chemical compositions. Estimated iridium/nickel and iridium/cobalt ratios for metal in the Itokawa samples are about five times lower than CI carbonaceous chondrite values. A similar depletion of iridium was observed in chondrule metals of ordinary chondrites. These metals must have condensed from the nebular where refractory siderophile elements already condensed and were segregated. JF - Science AU - Ebihara, Mitsuru AU - Sekimoto, S AU - Shirai, Nobumasa AU - Hamajima, Y AU - Yamamoto, M AU - Kumagai, K AU - Oura, Y AU - Ireland, Trevor R AU - Kitajima, Fumio AU - Nagao, Keisuke AU - Nakamura, Tomoki AU - Naraoka, Hiroshi AU - Noguchi, Takaaki AU - Okazaki, Ryuji AU - Tsuchiyama, Akira AU - Uesugi, Masayuki AU - Yurimoto, H AU - Zolensky, Michael E AU - Abe, Masanao AU - Fujimura, Akio AU - Mukai, Toshifumi AU - Yada, Yuji Y1 - 2011/08// PY - 2011 DA - August 2011 SP - 1119 EP - 1121 PB - American Association for the Advancement of Science, Washington, DC VL - 333 IS - 6046 SN - 0036-8075, 0036-8075 KW - neutron activation analysis data KW - Itokawa Asteroid KW - stony meteorites KW - minor elements KW - asteroids KW - parent bodies KW - siderophile elements KW - carbonaceous chondrites KW - meteorites KW - mineral composition KW - major elements KW - Hayabusa Mission KW - chondrules KW - trace elements KW - chondrites KW - chemical composition KW - geochemistry KW - chemical ratios KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/894808805?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Neutron+activation+analysis+of+a+particle+returned+from+Asteroid+Itokawa&rft.au=Ebihara%2C+Mitsuru%3BSekimoto%2C+S%3BShirai%2C+Nobumasa%3BHamajima%2C+Y%3BYamamoto%2C+M%3BKumagai%2C+K%3BOura%2C+Y%3BIreland%2C+Trevor+R%3BKitajima%2C+Fumio%3BNagao%2C+Keisuke%3BNakamura%2C+Tomoki%3BNaraoka%2C+Hiroshi%3BNoguchi%2C+Takaaki%3BOkazaki%2C+Ryuji%3BTsuchiyama%2C+Akira%3BUesugi%2C+Masayuki%3BYurimoto%2C+H%3BZolensky%2C+Michael+E%3BAbe%2C+Masanao%3BFujimura%2C+Akio%3BMukai%2C+Toshifumi%3BYada%2C+Yuji&rft.aulast=Ebihara&rft.aufirst=Mitsuru&rft.date=2011-08-01&rft.volume=333&rft.issue=6046&rft.spage=1119&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.1207865 L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 17 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - asteroids; carbonaceous chondrites; chemical composition; chemical ratios; chondrites; chondrules; geochemistry; Hayabusa Mission; Itokawa Asteroid; major elements; meteorites; mineral composition; minor elements; neutron activation analysis data; parent bodies; siderophile elements; stony meteorites; trace elements DO - http://dx.doi.org/10.1126/science.1207865 ER - TY - JOUR T1 - Oxygen isotopic compositions of asteroidal materials returned from Itokawa by the Hayabusa Mission AN - 894808793; 2011-083512 AB - Meteorite studies suggest that each solar system object has a unique oxygen isotopic composition. Chondrites, the most primitive of meteorites, have been believed to be derived from asteroids, but oxygen isotopic compositions of asteroids themselves have not been established. We measured, using secondary ion mass spectrometry, oxygen isotopic compositions of rock particles from asteroid 25143 Itokawa returned by the Hayabusa spacecraft. Compositions of the particles are depleted in (super 16) O relative to terrestrial materials and indicate that Itokawa, an S-type asteroid, is one of the sources of the LL or L group of equilibrated ordinary chondrites. This is a direct oxygen-isotope link between chondrites and their parent asteroid. JF - Science AU - Yurimoto, Hisayoshi AU - Abe, Ken-ichi AU - Abe, Masanao AU - Ebihara, Mitsuru AU - Fujimura, Akio AU - Hashiguchi, Minako AU - Hashizume, Ko AU - Ireland, Trevor R AU - Itoh, Shoichi AU - Katayama, Juri AU - Kato, Chizu AU - Kawaguchi, Junichiro AU - Kawasaki, Noriyuki AU - Kitajima, Fumio AU - Kobayashi, Sachio AU - Meike, Tatsuji AU - Mukai, Toshifumi AU - Nagao, Keisuke AU - Nakamura, Tomoki AU - Naraoka, Hiroshi AU - Noguchi, Takaaki AU - Okazaki, Ryuji AU - Park, Changkun AU - Sakamoto, Naoya AU - Seto, Yusuke AU - Takei, Masashi AU - Tsuchiyama, Akira AU - Uesugi, Masayuki AU - Wakaki, Shigeyuki AU - Yada, Toru AU - Yamamoto, Kosuke AU - Yoshikawa, Makoto AU - Zolensky, Michael E Y1 - 2011/08// PY - 2011 DA - August 2011 SP - 1116 EP - 1119 PB - American Association for the Advancement of Science, Washington, DC VL - 333 IS - 6046 SN - 0036-8075, 0036-8075 KW - ordinary chondrites KW - Itokawa Asteroid KW - stony meteorites KW - oxygen KW - asteroids KW - isotopes KW - isotope ratios KW - LL chondrites KW - O-18/O-16 KW - stable isotopes KW - meteorites KW - mineral composition KW - Hayabusa Mission KW - chondrites KW - geochemistry KW - O-17/O-16 KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/894808793?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Oxygen+isotopic+compositions+of+asteroidal+materials+returned+from+Itokawa+by+the+Hayabusa+Mission&rft.au=Yurimoto%2C+Hisayoshi%3BAbe%2C+Ken-ichi%3BAbe%2C+Masanao%3BEbihara%2C+Mitsuru%3BFujimura%2C+Akio%3BHashiguchi%2C+Minako%3BHashizume%2C+Ko%3BIreland%2C+Trevor+R%3BItoh%2C+Shoichi%3BKatayama%2C+Juri%3BKato%2C+Chizu%3BKawaguchi%2C+Junichiro%3BKawasaki%2C+Noriyuki%3BKitajima%2C+Fumio%3BKobayashi%2C+Sachio%3BMeike%2C+Tatsuji%3BMukai%2C+Toshifumi%3BNagao%2C+Keisuke%3BNakamura%2C+Tomoki%3BNaraoka%2C+Hiroshi%3BNoguchi%2C+Takaaki%3BOkazaki%2C+Ryuji%3BPark%2C+Changkun%3BSakamoto%2C+Naoya%3BSeto%2C+Yusuke%3BTakei%2C+Masashi%3BTsuchiyama%2C+Akira%3BUesugi%2C+Masayuki%3BWakaki%2C+Shigeyuki%3BYada%2C+Toru%3BYamamoto%2C+Kosuke%3BYoshikawa%2C+Makoto%3BZolensky%2C+Michael+E&rft.aulast=Yurimoto&rft.aufirst=Hisayoshi&rft.date=2011-08-01&rft.volume=333&rft.issue=6046&rft.spage=1116&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.1207776 L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 19 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - asteroids; chondrites; geochemistry; Hayabusa Mission; isotope ratios; isotopes; Itokawa Asteroid; LL chondrites; meteorites; mineral composition; O-17/O-16; O-18/O-16; ordinary chondrites; oxygen; stable isotopes; stony meteorites DO - http://dx.doi.org/10.1126/science.1207776 ER - TY - JOUR T1 - The effect of f (sub O2) on the partitioning and valence of V and Cr in garnet/melt pairs and the relation to terrestrial mantle V and Cr content AN - 890670140; 2011-076470 AB - Chromium and vanadium are stable in multiple valence states in natural systems, and their distribution between garnet and silicate melt is not well understood. Here, the partitioning and valence state of V and Cr in experimental garnet/melt pairs have been studied at 1.8-3.0 GPa, with variable oxygen fugacity between IW-1.66 and the Ru-RuO (sub 2) (IW+9.36) buffer. In addition, the valence state of V and Cr has been measured in several high-pressure (majoritic garnet up to 20 GPa) experimental garnets, some natural megacrystic garnets from the western United States, and a suite of mantle garnets from South Africa. The results show that Cr remains in trivalent in garnet across a wide range of oxygen fugacities. Vanadium, on the other hand, exhibits variable valence state from 2.5 to 3.7 in the garnets and from 3.0 to 4.0 in the glasses. The valence state of V is always greater in the glass than in the garnet. Moreover, the garnet/melt partition coefficient, D(V), is highest when V is trivalent, at the most reduced conditions investigated (IW-1.66 to FMQ). The V (super 2.5+) measured in high P-T experimental garnets is consistent with the reduced nature of those metal-bearing systems. The low V valence state measured in natural megacrystic garnets is consistent with f (sub O2) close to the IW buffer, overlapping the range of f (sub O2) measured independently by Fe (super 2+) /Fe (super 3+) techniques on similar samples. However, the valence state of V measured in a suite of mantle garnets from South Africa is constant across a 3 log f (sub O2) unit range (FMQ-1.8 to FMQ-4.5), suggesting that the valence state of V is controlled by the crystal chemistry of the garnets rather than f (sub O2) variations. The compatibility of V and Cr in garnets and other deep mantle silicates indicates that the depletion of these elements in the Earth's primitive upper mantle could be due to partitioning into lower mantle phases as well as into metal. JF - American Mineralogist AU - Righter, Kevin AU - Sutton, S AU - Danielson, L AU - Pando, K AU - Schmidt, G AU - Yang, H AU - Berthet, S AU - Newville, M AU - Choi, Y AU - Downs, R T AU - Malavergne, V Y1 - 2011/08// PY - 2011 DA - August 2011 SP - 1278 EP - 1290 PB - Mineralogical Society of America, Washington, DC VL - 96 IS - 8-9 SN - 0003-004X, 0003-004X KW - silicates KW - oxygen KW - buffers KW - garnet group KW - mantle KW - melts KW - iron KW - fugacity KW - XANES spectra KW - uvarovite KW - partitioning KW - laboratory studies KW - ferric iron KW - vanadium KW - orthosilicates KW - valency KW - spectra KW - South Africa KW - synthetic materials KW - chromium KW - goldmanite KW - experimental studies KW - pressure KW - silicate melts KW - siderophile elements KW - high pressure KW - X-ray spectra KW - ferrous iron KW - nesosilicates KW - metals KW - Southern Africa KW - Africa KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/890670140?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=The+effect+of+f+%28sub+O2%29+on+the+partitioning+and+valence+of+V+and+Cr+in+garnet%2Fmelt+pairs+and+the+relation+to+terrestrial+mantle+V+and+Cr+content&rft.au=Righter%2C+Kevin%3BSutton%2C+S%3BDanielson%2C+L%3BPando%2C+K%3BSchmidt%2C+G%3BYang%2C+H%3BBerthet%2C+S%3BNewville%2C+M%3BChoi%2C+Y%3BDowns%2C+R+T%3BMalavergne%2C+V&rft.aulast=Righter&rft.aufirst=Kevin&rft.date=2011-08-01&rft.volume=96&rft.issue=8-9&rft.spage=1278&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam.2011.3690 L2 - http://ammin.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 104 N1 - PubXState - DC N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - Africa; buffers; chromium; experimental studies; ferric iron; ferrous iron; fugacity; garnet group; goldmanite; high pressure; iron; laboratory studies; mantle; melts; metals; nesosilicates; orthosilicates; oxygen; partitioning; pressure; siderophile elements; silicate melts; silicates; South Africa; Southern Africa; spectra; synthetic materials; uvarovite; valency; vanadium; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.2138/am.2011.3690 ER - TY - JOUR T1 - Newtonian Viscous Effects in Ultrasonic Emboli Removal from Blood AN - 883039644; 15324988 AB - We have modeled the removal of emboli from cardiopulmonary bypass circuits via acoustic radiation force. Unless removed, emboli can result in cognitive deficit for those undergoing heart surgery with the use of extracorporeal circuits. There are a variety of mathematical formulations in the literature describing acoustic radiation force, but a lingering question that remains is how important viscosity of the blood and/or embolus is to the process. We implemented both inviscid and viscous models for acoustic radiation force on a sphere immersed in a fluid. We found that for this specific application, the inviscid model seems to be sufficient for predicting acoustic force upon emboli when compared with the chosen viscous model. Thus, the much simpler inviscid model could be used to optimize experimental techniques for ultrasonic emboli removal. JF - Ultrasound in Medicine & Biology AU - Leckey, Cara AC AU - Hinders, Mark K Y1 - 2011/08// PY - 2011 DA - Aug 2011 SP - 1340 EP - 1349 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 37 IS - 8 SN - 0301-5629, 0301-5629 KW - Biotechnology and Bioengineering Abstracts KW - Heart KW - Mathematical models KW - Acoustics KW - Circuits KW - Models KW - Blood KW - Viscosity KW - Radiation KW - Cognitive ability KW - Embolism KW - Ultrasonics KW - Surgery KW - Ultrasound KW - W 30910:Imaging UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/883039644?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ultrasound+in+Medicine+%26+Biology&rft.atitle=Newtonian+Viscous+Effects+in+Ultrasonic+Emboli+Removal+from+Blood&rft.au=Leckey%2C+Cara+AC%3BHinders%2C+Mark+K&rft.aulast=Leckey&rft.aufirst=Cara&rft.date=2011-08-01&rft.volume=37&rft.issue=8&rft.spage=1340&rft.isbn=&rft.btitle=&rft.title=Ultrasound+in+Medicine+%26+Biology&rft.issn=03015629&rft_id=info:doi/10.1016%2Fj.ultrasmedbio.2011.05.009 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-08-01 N1 - Last updated - 2012-03-29 N1 - SubjectsTermNotLitGenreText - Heart; Mathematical models; Acoustics; Circuits; Models; Blood; Viscosity; Radiation; Ultrasonics; Embolism; Cognitive ability; Surgery; Ultrasound DO - http://dx.doi.org/10.1016/j.ultrasmedbio.2011.05.009 ER - TY - NEWS T1 - Gantry's First Splash Test Is a Booming Success AN - 880202466 JF - UPI Space Daily AU - Jim Hodges for NASA Langley Research Center Y1 - 2011/08/01/ PY - 2011 DA - 2011 Aug 01 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/880202466?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Gantry%27s+First+Splash+Test+Is+a+Booming+Success&rft.au=Jim+Hodges+for+NASA+Langley+Research+Center&rft.aulast=Jim+Hodges+for+NASA+Langley+Research+Center&rft.aufirst=&rft.date=2011-08-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-08-01 ER - TY - JOUR T1 - Studies of 21st-century precipitation trends over West Africa AN - 1017962435; 16688419 AB - West Africa includes a semi-arid zone between the Sahara Desert and the humid Gulf of Guinea coast, approximately between 10?N and 20?N, which is irrigated by summer monsoon rains. This article refers to the region as the Sahel. Rain-fed agriculture is the primary sustenance for Sahel populations, and severe droughts (in the 1970s and 1980s), therefore, have devastating negative societal impacts. The future frequency of Sahel droughts and the evolution of its hydrological balance are therefore of great interest. The article reviews 10 recent research studies that attempt to discover how climate changes will affect the hydrology of the Sahel throughout the 21st century. All 10 studies rely on atmosphere-ocean global climate model (AOGCM) simulations based on a range of greenhouse gas emissions scenarios. Many of the simulations are contained in the Intergovernmental Panel on Climate Change archives for Assessment Reports #3 and #4. Two of the studies use AOGCM data to drive regional climate models. Seven studies make projections for the first half of the 21st century and eight studies make projections for the second half. Some studies make projections of wetter conditions and some predict more frequent droughts, and each describes the atmospheric processes associated with its prediction. Only one study projects more frequent droughts before 2050, and that is only for continent-wide degradation in vegetation cover. The challenge to correctly simulate Sahel rainfall decadal trends is particularly daunting because multiple physical mechanisms compete to drive the trend upwards or downwards. A variety of model deficiencies, regarding the simulation of one or more of these physical processes, taints models' climate change projections. Consequently, no consensus emerges regarding the impact of anticipated greenhouse gas forcing on the hydrology of the Sahel in the second half of the 21st century. JF - International Journal of Climatology AU - Druyan, Leonard M Y1 - 2011/08// PY - 2011 DA - August 2011 SP - 1415 EP - 1424 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 31 IS - 10 SN - 1097-0088, 1097-0088 KW - Pollution Abstracts; Environment Abstracts; Meteorological & Geoastrophysical Abstracts; Sustainability Science Abstracts; Water Resources Abstracts KW - Atmospheric pollution models KW - Degradation KW - Rainfall KW - Climate change KW - Drought KW - Vegetation cover KW - Hydrologic Models KW - Assessments KW - Guinea KW - Hydrology KW - Climatology KW - Droughts KW - Summer monsoon KW - Climate models KW - Hydrologic analysis KW - Climates KW - Vegetation KW - Simulation KW - Projections KW - ASE, Africa KW - Numerical simulations KW - Deserts KW - Reviews KW - Africa, Sahara Desert KW - Greenhouse gases KW - Monsoons KW - P 0000:AIR POLLUTION KW - M2 551.583:Variations (551.583) KW - M3 1010:Issues in Sustainable Development KW - SW 0815:Precipitation KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1017962435?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Climatology&rft.atitle=Studies+of+21st-century+precipitation+trends+over+West+Africa&rft.au=Druyan%2C+Leonard+M&rft.aulast=Druyan&rft.aufirst=Leonard&rft.date=2011-08-01&rft.volume=31&rft.issue=10&rft.spage=1415&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Climatology&rft.issn=10970088&rft_id=info:doi/10.1002%2Fjoc.2180 L2 - http://onlinelibrary.wiley.com/doi/10.1002/joc.2180/abstract LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-05-01 N1 - Last updated - 2016-09-29 N1 - SubjectsTermNotLitGenreText - Summer monsoon; Hydrologic analysis; Atmospheric pollution models; Climate models; Numerical simulations; Hydrology; Climatology; Drought; Greenhouse gases; Vegetation cover; Degradation; Deserts; Reviews; Rainfall; Simulation; Droughts; Monsoons; Hydrologic Models; Assessments; Climates; Climate change; Vegetation; Projections; ASE, Africa; Guinea; Africa, Sahara Desert DO - http://dx.doi.org/10.1002/joc.2180 ER - TY - JOUR T1 - Subgrid-scale models and large-eddy simulation of oxygen stream disintegration and mixing with a hydrogen or helium stream at supercritical pressure AN - 902384056; 15768738 AB - For flows at supercritical pressure, p, the large-eddy simulation (LES) equations consist of the differential conservation equations coupled with a real-gas equation of state, and the equations utilize transport properties depending on the thermodynamic variables. Compared to previous LES models, the differential equations contain not only the subgrid-scale (SGS) fluxes but also new SGS terms, each denoted as a 'correction'. These additional terms, typically assumed null for atmospheric pressure flows, stem from filtering the differential governing equations and represent differences, other than contributed by the convection terms, between a filtered term and the same term computed as a function of the filtered flow field. In particular, the energy equation contains a heat-flux correction (q-correction) which is the difference between the filtered divergence of the molecular heat flux and the divergence of the molecular heat flux computed as a function of the filtered flow field. We revisit here a previous a priori study where we only had partial success in modelling the q-correction term and show that success can be achieved using a different modelling approach. This a priori analysis, based on a temporal mixing-layer direct numerical simulation database, shows that the focus in modelling the q-correction should be on reconstructing the primitive variable gradients rather than their coefficients, and proposes the approximate deconvolution model (ADM) as an effective means of flow field reconstruction for LES molecular heat-flux calculation. Furthermore, an a posteriori study is conducted for temporal mixing layers initially containing oxygen (O) in the lower stream and hydrogen (H) or helium (He) in the upper stream to examine the benefit of the new model. Results show that for any LES including SGS-flux models (constant-coefficient gradient or scale-similarity models; dynamic-coefficient Smagorinsky/Yoshizawa or mixed Smagorinsky/Yoshizawa/gradient models), the inclusion of the q-correction in LES leads to the theoretical maximum reduction of the SGS molecular heat-flux difference; the remaining error in modelling this new subgrid term is thus irreducible. The impact of the q-correction model first on the molecular heat flux and then on the mean, fluctuations, second-order correlations and spatial distribution of dependent variables is also demonstrated. Discussions on the utilization of the models in general LES are presented. JF - Journal of Fluid Mechanics AU - TASKINOLU, EZGI S AU - Bellan, Josette AD - Mechanical Engineering Department, California Institute of Technology, Pasadena, CA 91125, USA, josette.bellan@jpl.nasa.gov Y1 - 2011/07/25/ PY - 2011 DA - 2011 Jul 25 SP - 156 EP - 193 PB - Cambridge University Press, The Edinburgh Building, Cambridge CB2 2RU United Kingdom VL - 679 SN - 0022-1120, 0022-1120 KW - Aqualine Abstracts; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Convection KW - Spatial distribution KW - Convection development KW - Divergence KW - Hydrogen KW - Streams KW - Mixing KW - Fluid mechanics KW - Thermodynamics of the atmosphere KW - Marine KW - Heat flux KW - Mathematical models KW - Oceanic eddies KW - Large eddy simulations KW - Model Studies KW - Heat transfer KW - Differential equations KW - Oxygen KW - Numerical simulations KW - Heat KW - Stream KW - Conservation KW - Helium KW - Atmospheric pressure KW - Fluctuations KW - Q2 09123:Conservation KW - M2 551.54:Atmospheric Pressure (551.54) KW - SW 6010:Structures KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/902384056?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Fluid+Mechanics&rft.atitle=Subgrid-scale+models+and+large-eddy+simulation+of+oxygen+stream+disintegration+and+mixing+with+a+hydrogen+or+helium+stream+at+supercritical+pressure&rft.au=TASKINOLU%2C+EZGI+S%3BBellan%2C+Josette&rft.aulast=TASKINOLU&rft.aufirst=EZGI&rft.date=2011-07-25&rft.volume=679&rft.issue=&rft.spage=156&rft.isbn=&rft.btitle=&rft.title=Journal+of+Fluid+Mechanics&rft.issn=00221120&rft_id=info:doi/10.1017%2Fjfm.2011.130 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Last updated - 2015-08-19 N1 - SubjectsTermNotLitGenreText - Fluid mechanics; Convection; Mathematical models; Stream; Helium; Atmospheric pressure; Oceanic eddies; Differential equations; Heat transfer; Heat flux; Numerical simulations; Spatial distribution; Convection development; Thermodynamics of the atmosphere; Hydrogen; Divergence; Large eddy simulations; Oxygen; Heat; Conservation; Mixing; Fluctuations; Streams; Model Studies; Marine DO - http://dx.doi.org/10.1017/jfm.2011.130 ER - TY - CPAPER T1 - Tone Noise Predictions for a Spacecraft Cabin Ventilation Fan Ingesting Distorted Infl ow and the Challenges of Validation T2 - 2011 Annual Conference of the Institute of Noise Control Engineering's (NOISE-CON 2011) AN - 1313018846; 6060981 JF - 2011 Annual Conference of the Institute of Noise Control Engineering's (NOISE-CON 2011) AU - Koch, Danielle AU - Shook, Tony AU - Astler, Douglas AU - Bittinger, Samantha Y1 - 2011/07/25/ PY - 2011 DA - 2011 Jul 25 KW - Ventilation KW - Spacecraft KW - Noise levels UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313018846?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Conference+of+the+Institute+of+Noise+Control+Engineering%27s+%28NOISE-CON+2011%29&rft.atitle=Tone+Noise+Predictions+for+a+Spacecraft+Cabin+Ventilation+Fan+Ingesting+Distorted+Infl+ow+and+the+Challenges+of+Validation&rft.au=Koch%2C+Danielle%3BShook%2C+Tony%3BAstler%2C+Douglas%3BBittinger%2C+Samantha&rft.aulast=Koch&rft.aufirst=Danielle&rft.date=2011-07-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Conference+of+the+Institute+of+Noise+Control+Engineering%27s+%28NOISE-CON+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.inceusa.org/nc11/documents/2011TechnicalSchedule_online_001.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - NEWS T1 - New Ways to Measure Magnetism Around the Sun AN - 878777708 JF - UPI Space Daily AU - Karen C. Fox - NASA's Goddard Space Flight Center Y1 - 2011/07/24/ PY - 2011 DA - 2011 Jul 24 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/878777708?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=New+Ways+to+Measure+Magnetism+Around+the+Sun&rft.au=Karen+C.+Fox+-+NASA%27s+Goddard+Space+Flight+Center&rft.aulast=Karen+C.+Fox+-+NASA%27s+Goddard+Space+Flight+Center&rft.aufirst=&rft.date=2011-07-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-07-24 ER - TY - NEWS T1 - Flying the STA: Landing Like the Shuttle AN - 878777451 JF - UPI Space Daily AU - Steven Siceloff - NASA's John F. Kennedy Space Center Y1 - 2011/07/24/ PY - 2011 DA - 2011 Jul 24 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/878777451?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Flying+the+STA%3A+Landing+Like+the+Shuttle&rft.au=Steven+Siceloff+-+NASA%27s+John+F.+Kennedy+Space+Center&rft.aulast=Steven+Siceloff+-+NASA%27s+John+F.+Kennedy+Space+Center&rft.aufirst=&rft.date=2011-07-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-07-24 ER - TY - JOUR T1 - Combined retrievals of boreal forest fire aerosol properties with a polarimeter and lidar AN - 883043796; 15331306 AB - Absorbing aerosols play an important, but uncertain, role in the global climate. Much of this uncertainty is due to a lack of adequate aerosol measurements. While great strides have been made in observational capability in the previous years and decades, it has become increasingly apparent that this development must continue. Scanning polarimeters have been designed to help resolve this issue by making accurate, multi-spectral, multi-angle polarized observations. This work involves the use of the Research Scanning Polarimeter (RSP). The RSP was designed as the airborne prototype for the Aerosol Polarimetery Sensor (APS), which was due to be launched as part of the (ultimately failed) NASA Glory mission. Field observations with the RSP, however, have established that simultaneous retrievals of aerosol absorption and vertical distribution over bright land surfaces are quite uncertain. We test a merger of RSP and High Spectral Resolution Lidar (HSRL) data with observations of boreal forest fire smoke, collected during the Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS). During ARCTAS, the RSP and HSRL instruments were mounted on the same aircraft, and validation data were provided by instruments on an aircraft flying a coordinated flight pattern. We found that the lidar data did indeed improve aerosol retrievals using an optimal estimation method, although not primarily because of the contraints imposed on the aerosol vertical distribution. The more useful piece of information from the HSRL was the total column aerosol optical depth, which was used to select the initial value (optimization starting point) of the aerosol number concentration. When ground based sun photometer network climatologies of number concentration were used as an initial value, we found that roughly half of the retrievals had unrealistic sizes and imaginary indices, even though the retrieved spectral optical depths agreed within uncertainties to independent observations. The convergence to an unrealistic local minimum by the optimal estimator is related to the relatively low sensitivity to particles smaller than 0.1 ( mu m) at large optical thicknesses. Thus, optimization algorithms used for operational aerosol retrievals of the fine mode size distribution, when the total optical depth is large, will require initial values generated from table look-ups that exclude unrealistic size/complex index mixtures. External constraints from lidar on initial values used in the optimal estimation methods will also be valuable in reducing the likelihood of obtaining spurious retrievals. JF - Atmospheric Chemistry and Physics AU - Knobelspiesse, K AU - Cairns, B AU - Ottaviani, M AU - Ferrare, R AU - Hair, J AU - Hostetler, C AU - Obland, M AU - Rogers, R AU - Redemann, J AU - Shinozuka, Y AD - NASA Ames Research Center, Moffett Field, California, USA Y1 - 2011/07/20/ PY - 2011 DA - 2011 Jul 20 SP - 7045 EP - 7067 PB - European Geophysical Society, Max-Planck-Str. 13 Katlenburg-Lindau Germany VL - 11 IS - 14 SN - 1680-7316, 1680-7316 KW - Aqualine Abstracts; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Absorption KW - PN, Arctic KW - Aerosols KW - Lidar applications KW - SW 5010:Network design KW - AQ 00006:Sewage KW - M2:551.510.42 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/883043796?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Chemistry+and+Physics&rft.atitle=Combined+retrievals+of+boreal+forest+fire+aerosol+properties+with+a+polarimeter+and+lidar&rft.au=Knobelspiesse%2C+K%3BCairns%2C+B%3BOttaviani%2C+M%3BFerrare%2C+R%3BHair%2C+J%3BHostetler%2C+C%3BObland%2C+M%3BRogers%2C+R%3BRedemann%2C+J%3BShinozuka%2C+Y&rft.aulast=Knobelspiesse&rft.aufirst=K&rft.date=2011-07-20&rft.volume=11&rft.issue=14&rft.spage=7045&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics&rft.issn=16807316&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-08-01 N1 - Last updated - 2014-02-21 N1 - SubjectsTermNotLitGenreText - Lidar applications; Aerosols; PN, Arctic ER - TY - JOUR T1 - The impact of devegetated dune fields on North American climate during the late Medieval Climate Anomaly AN - 912922885; 16006656 AB - Devegetation has a significant impact on temperatures, beyond SST forcing The devegetation has a negligible impact on precipitation or drought Results point to need for additional factors during the MCA; e.g. dust aerosols During the Medieval Climate Anomaly, North America experienced severe droughts and widespread mobilization of dune fields that persisted for decades. We use an atmosphere general circulation model, forced by a tropical Pacific sea surface temperature reconstruction and changes in the land surface consistent with estimates of dune mobilization (conceptualized as partial devegetation), to investigate whether the devegetation could have exacerbated the medieval droughts. Presence of devegetated dunes in the model significantly increases surface temperatures, but has little impact on precipitation or drought severity, as defined by either the Palmer Drought Severity Index or the ratio of precipitation to potential evapotranspiration. Results are similar to recent studies of the 1930s Dust Bowl drought, suggesting bare soil associated with the dunes, in and of itself, is not sufficient to amplify droughts over North America. JF - Geophysical Research Letters AU - Cook, B I AU - Seager, R AU - Miller, R L AD - NASA Goddard Institute for Space Studies, New York, New York, USA Y1 - 2011/07/16/ PY - 2011 DA - 2011 Jul 16 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 38 IS - 14 SN - 0094-8276, 0094-8276 KW - Sustainability Science Abstracts; Meteorological & Geoastrophysical Abstracts KW - 0473 Biogeosciences: Paleoclimatology and paleoceanography KW - 1631 Global Change: Land/atmosphere interactions KW - 1812 Hydrology: Drought KW - Medieval Climate Anomaly KW - drought KW - dunes KW - North America KW - Surface temperatures KW - Aerosols KW - Rainfall KW - Temperature KW - Evapotranspiration KW - Drought KW - Precipitation KW - IS, Tropical Pacific KW - Atmosphere KW - Dust KW - Soil KW - Potential evapotranspiration KW - Sea surface temperature anomalies KW - General circulation models KW - Sea surface temperatures KW - Droughts KW - M3 1010:Issues in Sustainable Development KW - M2 556.13:Evaporation/Evapotranspiration (556.13) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/912922885?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=The+impact+of+devegetated+dune+fields+on+North+American+climate+during+the+late+Medieval+Climate+Anomaly&rft.au=Cook%2C+B+I%3BSeager%2C+R%3BMiller%2C+R+L&rft.aulast=Cook&rft.aufirst=B&rft.date=2011-07-16&rft.volume=38&rft.issue=14&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2011GL047566 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-12-01 N1 - Number of references - 21 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Potential evapotranspiration; Surface temperatures; Sea surface temperature anomalies; General circulation models; Precipitation; Drought; Sea surface temperatures; Soil; Aerosols; dunes; Rainfall; Temperature; Evapotranspiration; Atmosphere; Droughts; Dust; North America; IS, Tropical Pacific DO - http://dx.doi.org/10.1029/2011GL047566 ER - TY - NEWS T1 - Dark Fireworks on the Sun AN - 879120572 JF - UPI Space Daily AU - Dr. Tony Phillips for "http://science.nasa.gov/" NASA Science News Y1 - 2011/07/15/ PY - 2011 DA - 2011 Jul 15 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/879120572?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Dark+Fireworks+on+the+Sun&rft.au=Dr.+Tony+Phillips+for+%22http%3A%2F%2Fscience.nasa.gov%2F%22+NASA+Science+News&rft.aulast=Dr.+Tony+Phillips+for+%22http%3A%2F%2Fscience.nasa.gov%2F%22+NASA+Science+News&rft.aufirst=&rft.date=2011-07-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-07-27 ER - TY - NEWS T1 - Punching Holes in the Sky AN - 876202543 JF - UPI Space Daily AU - Patrick Lynch - NASA's Earth Science News Team Y1 - 2011/07/14/ PY - 2011 DA - 2011 Jul 14 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/876202543?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Punching+Holes+in+the+Sky&rft.au=Patrick+Lynch+-+NASA%27s+Earth+Science+News+Team&rft.aulast=Patrick+Lynch+-+NASA%27s+Earth+Science+News+Team&rft.aufirst=&rft.date=2011-07-14&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-07-21 ER - TY - NEWS T1 - MILA Tracks its Last Launch and Landing AN - 876202533 JF - UPI Space Daily AU - Cheryl L. Mansfield - NASA's John F. Kennedy Space Center Y1 - 2011/07/14/ PY - 2011 DA - 2011 Jul 14 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/876202533?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=MILA+Tracks+its+Last+Launch+and+Landing&rft.au=Cheryl+L.+Mansfield+-+NASA%27s+John+F.+Kennedy+Space+Center&rft.aulast=Cheryl+L.+Mansfield+-+NASA%27s+John+F.+Kennedy+Space+Center&rft.aufirst=&rft.date=2011-07-14&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-07-23 ER - TY - NEWS T1 - First-Ever View of a Sungrazer Comet In Front of the Sun AN - 876027541 JF - UPI Space Daily AU - Karen C. Fox - NASA's Goddard Space Flight Center Y1 - 2011/07/13/ PY - 2011 DA - 2011 Jul 13 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/876027541?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=First-Ever+View+of+a+Sungrazer+Comet+In+Front+of+the+Sun&rft.au=Karen+C.+Fox+-+NASA%27s+Goddard+Space+Flight+Center&rft.aulast=Karen+C.+Fox+-+NASA%27s+Goddard+Space+Flight+Center&rft.aufirst=&rft.date=2011-07-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-07-23 ER - TY - NEWS T1 - NASA Depends on Freedom and Liberty AN - 876027532 JF - UPI Space Daily AU - Cheryl L. Mansfield - NASA's John F. Kennedy Space Center Y1 - 2011/07/13/ PY - 2011 DA - 2011 Jul 13 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/876027532?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=NASA+Depends+on+Freedom+and+Liberty&rft.au=Cheryl+L.+Mansfield+-+NASA%27s+John+F.+Kennedy+Space+Center&rft.aulast=Cheryl+L.+Mansfield+-+NASA%27s+John+F.+Kennedy+Space+Center&rft.aufirst=&rft.date=2011-07-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-07-21 ER - TY - NEWS T1 - NASA Dryden and the Space Shuttles AN - 875904674 JF - UPI Space Daily AU - Peter W. Merlin - Historian, NASA Dryden Flight Research Center Y1 - 2011/07/12/ PY - 2011 DA - 2011 Jul 12 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/875904674?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=NASA+Dryden+and+the+Space+Shuttles&rft.au=Peter+W.+Merlin+-+Historian%2C+NASA+Dryden+Flight+Research+Center&rft.aulast=Peter+W.+Merlin+-+Historian&rft.aufirst=NASA+Dryden+Flight+Research&rft.date=2011-07-12&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-07-21 ER - TY - NEWS T1 - Does Asteroid Vesta Have a Moon AN - 879120298 JF - UPI Space Daily AU - Dauna Coulter for "http://science.nasa.gov/" NASA Science News Y1 - 2011/07/10/ PY - 2011 DA - 2011 Jul 10 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/879120298?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Does+Asteroid+Vesta+Have+a+Moon&rft.au=Dauna+Coulter+for+%22http%3A%2F%2Fscience.nasa.gov%2F%22+NASA+Science+News&rft.aulast=Dauna+Coulter+for+%22http%3A%2F%2Fscience.nasa.gov%2F%22+NASA+Science+News&rft.aufirst=&rft.date=2011-07-10&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-07-27 ER - TY - JOUR T1 - Astronomy: A census of the Carina complex AN - 885052580; 15390795 JF - Nature AU - Gull, Theodore R AD - Astrophysics Science Division, Goddard Space Flight Center, NASA, Greenbelt, Maryland 20771, USA. PY - 2011 SP - 460 EP - 461 PB - Nature Publishing Group, The Macmillan Building London N1 9XW United Kingdom VL - 475 IS - 7357 SN - 0028-0836, 0028-0836 KW - Meteorological & Geoastrophysical Abstracts; Sustainability Science Abstracts KW - census KW - Astrophysical research KW - astronomy KW - M3 1010:Issues in Sustainable Development KW - M2 52:C. Astrophysics (52) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/885052580?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature&rft.atitle=Astronomy%3A+A+census+of+the+Carina+complex&rft.au=Gull%2C+Theodore+R&rft.aulast=Gull&rft.aufirst=Theodore&rft.date=2011-07-07&rft.volume=475&rft.issue=7357&rft.spage=460&rft.isbn=&rft.btitle=&rft.title=Nature&rft.issn=00280836&rft_id=info:doi/10.1038%2F475460a LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-08-01 N1 - Last updated - 2015-12-23 N1 - SubjectsTermNotLitGenreText - Astrophysical research; census; astronomy DO - http://dx.doi.org/10.1038/475460a ER - TY - NEWS T1 - Orbiter Processing Facilities: High-Tech Shuttle Garages AN - 874656664 JF - UPI Space Daily AU - Rebecca Regan for NASA News Service Y1 - 2011/07/04/ PY - 2011 DA - 2011 Jul 04 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/874656664?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Orbiter+Processing+Facilities%3A+High-Tech+Shuttle+Garages&rft.au=Rebecca+Regan+for+NASA+News+Service&rft.aulast=Rebecca+Regan+for+NASA+News+Service&rft.aufirst=&rft.date=2011-07-04&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-07-23 ER - TY - CPAPER T1 - Wetlands and Methane Emissions: Satellite-Derived Inundation Seasonality and Extent in a Global Wetland Data Set T2 - Joint Meeting of the Society of Wetland Scientists and the Wetland Biogeochemistry Symposium (SWS 2011) AN - 1313025265; 6041612 JF - Joint Meeting of the Society of Wetland Scientists and the Wetland Biogeochemistry Symposium (SWS 2011) AU - Matthews, E AU - Prigent, C AU - Papa, F Y1 - 2011/07/03/ PY - 2011 DA - 2011 Jul 03 KW - Wetlands KW - Seasonal variations KW - Methane KW - Emissions KW - Data processing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313025265?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Joint+Meeting+of+the+Society+of+Wetland+Scientists+and+the+Wetland+Biogeochemistry+Symposium+%28SWS+2011%29&rft.atitle=Wetlands+and+Methane+Emissions%3A+Satellite-Derived+Inundation+Seasonality+and+Extent+in+a+Global+Wetland+Data+Set&rft.au=Matthews%2C+E%3BPrigent%2C+C%3BPapa%2C+F&rft.aulast=Matthews&rft.aufirst=E&rft.date=2011-07-03&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Joint+Meeting+of+the+Society+of+Wetland+Scientists+and+the+Wetland+Biogeochemistry+Symposium+%28SWS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://files.sws2011.com/200000651-3d0f03e086/sws-2011-final-programme.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - Evaluation of TRIGRS (transient rainfall infiltration and grid-based regional slope-stability analysis), predictive skill for hurricane-triggered landslides; a case study in Macon County, North Carolina AN - 921717533; 2012-023451 AB - The key to advancing the predictability of rainfall-triggered landslides is to use physically based slope-stability models that simulate the transient dynamical response of the subsurface moisture to spatiotemporal variability of rainfall in complex terrains. TRIGRS (transient rainfall infiltration and grid-based regional slope-stability analysis) is a USGS landslide prediction model, coded in Fortran, that accounts for the influences of hydrology, topography, and soil physics on slope stability. In this study, we quantitatively evaluate the spatiotemporal predictability of a Matlab version of TRIGRS (MaTRIGRS) in the Blue Ridge Mountains of Macon County, North Carolina where Hurricanes Ivan triggered widespread landslides in the 2004 hurricane season. High resolution digital elevation model (DEM) data (6-m LiDAR), USGS STATSGO soil database, and NOAA/NWS combined radar and gauge precipitation are used as inputs to the model. A local landslide inventory database from North Carolina Geological Survey is used to evaluate the MaTRIGRS' predictive skill for the landslide locations and timing, identifying predictions within a 120-m radius of observed landslides over the 30-h period of Hurricane Ivan's passage in September 2004. Results show that within a radius of 24 m from the landslide location about 67% of the landslide, observations could be successfully predicted but with a high false alarm ratio (90%). If the radius of observation is extended to 120 m, 98% of the landslides are detected with an 18% false alarm ratio. This study shows that MaTRIGRS demonstrates acceptable spatiotemporal predictive skill for landslide occurrences within a 120-m radius in space and a hurricane-event-duration (h) in time, offering the potential to serve as a landslide warning system in areas where accurate rainfall forecasts and detailed field data are available. The validation can be further improved with additional landslide information including the exact time of failure for each landslide and the landslide's extent and run out length. Copyright 2010 Springer Science+Business Media B.V. JF - Natural Hazards AU - Liao, Zonghu AU - Hong, Yang AU - Kirschbaum, Dalia AU - Adler, Robert F AU - Gourley, Jonathan J AU - Wooten, Rick Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 325 EP - 339 PB - Springer, Dordrecht VL - 58 IS - 1 SN - 0921-030X, 0921-030X KW - United States KW - laser methods KW - geologic hazards KW - spatial data KW - moisture KW - TRIGRS model KW - government agencies KW - data processing KW - Appalachians KW - digital terrain models KW - spatial variations KW - topography KW - Blue Ridge Mountains KW - mass movements KW - NOAA KW - data bases KW - storms KW - USGS KW - soils KW - hydrology KW - North America KW - rainfall KW - Macon County North Carolina KW - elevation KW - prediction KW - cyclones KW - computer programs KW - landslides KW - lidar methods KW - infiltration KW - North Carolina KW - mathematical methods KW - natural hazards KW - slope stability KW - hurricanes KW - remote sensing KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921717533?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Natural+Hazards&rft.atitle=Evaluation+of+TRIGRS+%28transient+rainfall+infiltration+and+grid-based+regional+slope-stability+analysis%29%2C+predictive+skill+for+hurricane-triggered+landslides%3B+a+case+study+in+Macon+County%2C+North+Carolina&rft.au=Liao%2C+Zonghu%3BHong%2C+Yang%3BKirschbaum%2C+Dalia%3BAdler%2C+Robert+F%3BGourley%2C+Jonathan+J%3BWooten%2C+Rick&rft.aulast=Liao&rft.aufirst=Zonghu&rft.date=2011-07-01&rft.volume=58&rft.issue=1&rft.spage=325&rft.isbn=&rft.btitle=&rft.title=Natural+Hazards&rft.issn=0921030X&rft_id=info:doi/10.1007%2Fs11069-010-9670-y L2 - http://www.springerlink.com/(j0cav1mkaqwmj255qh105vjp)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:102967,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2012-01-01 N1 - Number of references - 21 N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Appalachians; Blue Ridge Mountains; computer programs; cyclones; data bases; data processing; digital terrain models; elevation; geologic hazards; government agencies; hurricanes; hydrology; infiltration; landslides; laser methods; lidar methods; Macon County North Carolina; mass movements; mathematical methods; moisture; natural hazards; NOAA; North America; North Carolina; prediction; rainfall; remote sensing; slope stability; soils; spatial data; spatial variations; storms; topography; TRIGRS model; United States; USGS DO - http://dx.doi.org/10.1007/s11069-010-9670-y ER - TY - JOUR T1 - A Real-Time Gridded Crop Model for Assessing Spatial Drought Stress on Crops in the Southeastern United States AN - 904486422; 15792010 AB - The severity of drought has many implications for society. Its impacts on rain-fed agriculture are especially direct, however. The southeastern United States, with substantial rain-fed agriculture and large variability in growing-season precipitation, is especially vulnerable to drought. As commodity markets, drought assistance programs, and crop insurance have matured, more advanced information is needed on the evolution and impacts of drought. So far many new drought products and indices have been developed. These products generally do not include spatial details needed in the Southeast or do not include the physiological state of the crop, however. Here, a new type of drought measure is described that incorporates high-resolution physical inputs into a crop model (corn) that evolves based on the physical-biophysical conditions. The inputs include relatively high resolution (as compared with standard surface or NOAA Cooperative Observer Program data) (5 km) radar-derived precipitation, satellite-derived insolation, and temperature analyses. The system (referred to as CropRT for gridded crop real time) is run in real time under script control to provide daily maps of crop evolution and stress. Examples of the results from the system are provided for the 2008-10 growing seasons. Plots of daily crop water stress show small subcounty-scale variations in stress and the rapid change in stress over time. Depictions of final crop yield in comparison with seasonal average stress are provided. JF - Journal of Applied Meteorology and Climatology AU - Limaye, Ashutosh AU - Garcia, Axel Garcia AU - Hoogenboom, Gerrit AD - NASA Marshall Space Flight Center, Huntsville, Alabama Y1 - 2011/07// PY - 2011 DA - Jul 2011 SP - 1459 EP - 1475 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 50 IS - 7 SN - 1558-8424, 1558-8424 KW - Meteorological & Geoastrophysical Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Agriculture KW - Drought KW - USA, Southeast KW - Crops KW - AQ 00001:Water Resources and Supplies KW - M2:551.577 KW - SW 4060:Nonstructural alternatives UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/904486422?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Meteorology+and+Climatology&rft.atitle=A+Real-Time+Gridded+Crop+Model+for+Assessing+Spatial+Drought+Stress+on+Crops+in+the+Southeastern+United+States&rft.au=Limaye%2C+Ashutosh%3BGarcia%2C+Axel+Garcia%3BHoogenboom%2C+Gerrit&rft.aulast=Limaye&rft.aufirst=Ashutosh&rft.date=2011-07-01&rft.volume=50&rft.issue=7&rft.spage=1459&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Meteorology+and+Climatology&rft.issn=15588424&rft_id=info:doi/10.1175%2F2011JAMC2476.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Number of references - 1 N1 - Last updated - 2014-02-21 N1 - SubjectsTermNotLitGenreText - Drought; Crops; USA, Southeast DO - http://dx.doi.org/10.1175/2011JAMC2476.1 ER - TY - JOUR T1 - Assessing spectral evidence of aqueous activity in two putative Martian paleolakes AN - 904458795; 2011-102512 JF - Icarus AU - Roush, Ted L AU - Marzo, Giuseppe A AU - Fonti, Sergio AU - Orofino, Vincenzo AU - Blanco, Armando AU - Gross, Christoph AU - Wendt, Lorenz Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 240 EP - 245 PB - Elsevier, New York, NY VL - 214 IS - 1 SN - 0019-1035, 0019-1035 KW - water KW - silicates KW - hydrates KW - near-infrared spectra KW - CRISM KW - astrobiology KW - Mars Reconnaissance Orbiter KW - Mars KW - paleolakes KW - Compact Reconnaissance Imaging Spectrometer for Mars KW - biomarkers KW - terrestrial planets KW - spatial distribution KW - planets KW - laboratory studies KW - topography KW - sheet silicates KW - spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/904458795?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Assessing+spectral+evidence+of+aqueous+activity+in+two+putative+Martian+paleolakes&rft.au=Roush%2C+Ted+L%3BMarzo%2C+Giuseppe+A%3BFonti%2C+Sergio%3BOrofino%2C+Vincenzo%3BBlanco%2C+Armando%3BGross%2C+Christoph%3BWendt%2C+Lorenz&rft.aulast=Roush&rft.aufirst=Ted&rft.date=2011-07-01&rft.volume=214&rft.issue=1&rft.spage=240&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2011.04.017 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 46 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - astrobiology; biomarkers; Compact Reconnaissance Imaging Spectrometer for Mars; CRISM; hydrates; laboratory studies; Mars; Mars Reconnaissance Orbiter; near-infrared spectra; paleolakes; planets; sheet silicates; silicates; spatial distribution; spectra; terrestrial planets; topography; water DO - http://dx.doi.org/10.1016/j.icarus.2011.04.017 ER - TY - JOUR T1 - Apollo video photogrammetry estimation of plume impingement effects AN - 904458682; 2011-102500 JF - Icarus AU - Immer, Christopher AU - Lane, John AU - Metzger, Philip AU - Clements, Sandra Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 46 EP - 52 PB - Elsevier, New York, NY VL - 214 IS - 1 SN - 0019-1035, 0019-1035 KW - plumes KW - altitude KW - video methods KW - data processing KW - Apollo Program KW - landing sites KW - granular materials KW - sediments KW - velocity KW - lunar soils KW - cameras KW - experimental studies KW - three-dimensional models KW - Moon KW - clastic sediments KW - damage KW - photogrammetry KW - ejecta KW - geometry KW - models KW - craters KW - dust KW - regolith KW - image analysis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/904458682?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Apollo+video+photogrammetry+estimation+of+plume+impingement+effects&rft.au=Immer%2C+Christopher%3BLane%2C+John%3BMetzger%2C+Philip%3BClements%2C+Sandra&rft.aulast=Immer&rft.aufirst=Christopher&rft.date=2011-07-01&rft.volume=214&rft.issue=1&rft.spage=46&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2011.04.018 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 15 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Supplementary data available in online version N1 - Last updated - 2012-06-07 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - altitude; Apollo Program; cameras; clastic sediments; craters; damage; data processing; dust; ejecta; experimental studies; geometry; granular materials; image analysis; landing sites; lunar soils; models; Moon; photogrammetry; plumes; regolith; sediments; three-dimensional models; velocity; video methods DO - http://dx.doi.org/10.1016/j.icarus.2011.04.018 ER - TY - JOUR T1 - A ground-based observation of the LCROSS impact events using the Subaru Telescope AN - 904458658; 2011-102498 JF - Icarus AU - Hong, Peng K AU - Sugita, Seiji AU - Okamura, Natsuko AU - Sekine, Yasuhito AU - Terada, Hiroshi AU - Takatoh, Narushisa AU - Hayano, Yutaka AU - Fuse, Tetsuharu AU - Pyo, Tae-Soo AU - Kawakita, Hideyo AU - Wooden, Diane H AU - Young, Eliot F AU - Lucey, Paul G AU - Kurosawa, Kosuke AU - Genda, Hidenori AU - Haruyama, Junichi AU - Furusho, Reiko AU - Kadono, Toshihiko AU - Nakamura, Ryosuke AU - Kamata, Shunichi AU - Hamura, Taiga AU - Sekiguchi, Tomohiko AU - Soma, Mitsuru AU - Noda, Hirotomo AU - Watanabe, Jun-ichi Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 21 EP - 29 PB - Elsevier, New York, NY VL - 214 IS - 1 SN - 0019-1035, 0019-1035 KW - water KW - Lunar Crater Observation and Sensing Satellite KW - cratering KW - surface properties KW - near-infrared spectra KW - plumes KW - imagery KW - Moon KW - Cabeus Crater KW - Subaru Telescope KW - ground-based observations KW - prediction KW - LCROSS KW - impacts KW - simulation KW - excavations KW - ejecta KW - infrared spectra KW - geometry KW - detection KW - permanently shadowed regions KW - spectra KW - image analysis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/904458658?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=A+ground-based+observation+of+the+LCROSS+impact+events+using+the+Subaru+Telescope&rft.au=Hong%2C+Peng+K%3BSugita%2C+Seiji%3BOkamura%2C+Natsuko%3BSekine%2C+Yasuhito%3BTerada%2C+Hiroshi%3BTakatoh%2C+Narushisa%3BHayano%2C+Yutaka%3BFuse%2C+Tetsuharu%3BPyo%2C+Tae-Soo%3BKawakita%2C+Hideyo%3BWooden%2C+Diane+H%3BYoung%2C+Eliot+F%3BLucey%2C+Paul+G%3BKurosawa%2C+Kosuke%3BGenda%2C+Hidenori%3BHaruyama%2C+Junichi%3BFurusho%2C+Reiko%3BKadono%2C+Toshihiko%3BNakamura%2C+Ryosuke%3BKamata%2C+Shunichi%3BHamura%2C+Taiga%3BSekiguchi%2C+Tomohiko%3BSoma%2C+Mitsuru%3BNoda%2C+Hirotomo%3BWatanabe%2C+Jun-ichi&rft.aulast=Hong&rft.aufirst=Peng&rft.date=2011-07-01&rft.volume=214&rft.issue=1&rft.spage=21&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2011.05.008 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 48 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - Cabeus Crater; cratering; detection; ejecta; excavations; geometry; ground-based observations; image analysis; imagery; impacts; infrared spectra; LCROSS; Lunar Crater Observation and Sensing Satellite; Moon; near-infrared spectra; permanently shadowed regions; plumes; prediction; simulation; spectra; Subaru Telescope; surface properties; water DO - http://dx.doi.org/10.1016/j.icarus.2011.05.008 ER - TY - JOUR T1 - Articles Citing this Article AN - 899136349; 15692290 JF - Journal of Atmospheric and Oceanic Technology AU - Fridlind, Ann M AU - Ackerman, Andrew S AD - NASA Goddard Institute for Space Studies, New York, New York Y1 - 2011/07// PY - 2011 DA - Jul 2011 SP - 974 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 28 IS - 7 SN - 0739-0572, 0739-0572 KW - Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/899136349?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Atmospheric+and+Oceanic+Technology&rft.atitle=Articles+Citing+this+Article&rft.au=Fridlind%2C+Ann+M%3BAckerman%2C+Andrew+S&rft.aulast=Fridlind&rft.aufirst=Ann&rft.date=2011-07-01&rft.volume=28&rft.issue=7&rft.spage=974&rft.isbn=&rft.btitle=&rft.title=Journal+of+Atmospheric+and+Oceanic+Technology&rft.issn=07390572&rft_id=info:doi/10.1175%2FJTECH-D-11-00098.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-10-01 N1 - Last updated - 2011-12-14 DO - http://dx.doi.org/10.1175/JTECH-D-11-00098.1 ER - TY - JOUR T1 - Comparing influence of intermittent subglottic secretions drainage with/without closed suction systems on the incidence of ventilator associated pneumonia AN - 894759089 AB - Context: Intermittent subglottic drainage (ISD) of secretions is recommended for prevention of ventilator-associated pneumonia (VAP) as it reduces microaspiration from the area around the cuff. Poor suction techniques can contribute to VAP, hence closed suction system (CSS) may have theoretical benefit in VAP prevention. Combination of these two techniques may provide added advantage. Aims: To study the influence of ISD with/without CSS on the incidence of VAP. Materials and Methods: Data from 311 patients requiring mechanical ventilation (MV) for more than 72 hours were collected retrospectively. They were divided into four groups as follows: group A, no intervention; group B, only CSS; group C, only ISD; and group D, ISD with CSS. These groups were compared with respect to incidence of VAP, duration of MV, length of ICU and hospital stay and ICU mortality. Results: Patients in the four groups were comparable with respect to age, sex ratio and admission Acute Physiology and Chronic Health Evaluation (APACHE) II scores. Incidence of VAP per 1000 ventilator days in groups A, B, C, and D were 25, 23.9, 15.7 and 14.3, respectively (P=0.04). There was no significant difference in the duration of MV (P=0.33), length of ICU (P=0.55) and hospital stay (P=0.36) and ICU mortality (P=0.9) among the four groups. Conclusions: ISD of secretions reduces the incidence of VAP. CSS alone or in combination with ISD has no significant effect on VAP incidence. Hence, ISD may be recommended for VAP prevention, but indications other than VAP prevention should determine the type of the suction system. JF - Indian Journal of Critical Care Medicine AU - Juneja, Deven AU - Javeri, Yash AU - Singh, Omender AU - Nasa, Prashant AU - Pandey, Rameshwar AU - Uniyal, Bhupesh Y1 - 2011///Jul-Sep PY - 2011 DA - Jul-Sep 2011 SP - 168 EP - 172 CY - Mumbai PB - Medknow Publications & Media Pvt. Ltd. VL - 15 IS - 3 SN - 09725229 KW - Medical Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/894759089?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthcompleteshell&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Indian+Journal+of+Critical+Care+Medicine&rft.atitle=Comparing+influence+of+intermittent+subglottic+secretions+drainage+with%2Fwithout+closed+suction+systems+on+the+incidence+of+ventilator+associated+pneumonia&rft.au=Juneja%2C+Deven%3BJaveri%2C+Yash%3BSingh%2C+Omender%3BNasa%2C+Prashant%3BPandey%2C+Rameshwar%3BUniyal%2C+Bhupesh&rft.aulast=Juneja&rft.aufirst=Deven&rft.date=2011-07-01&rft.volume=15&rft.issue=3&rft.spage=168&rft.isbn=&rft.btitle=&rft.title=Indian+Journal+of+Critical+Care+Medicine&rft.issn=09725229&rft_id=info:doi/10.4103%2F0972-5229.84902 LA - English DB - ProQuest Central N1 - Copyright - Copyright Medknow Publications & Media Pvt Ltd Jul-Sep 2011 N1 - Last updated - 2016-06-11 DO - http://dx.doi.org/10.4103/0972-5229.84902 ER - TY - JOUR T1 - The zooplankton of Marguerite Bay, Western Antarctic Peninsula-Part I: Abundance, distribution, and population response to variability in environmental conditions AN - 888093464; 15093095 AB - The zooplankton community of Marguerite Bay was studied during austral fall of 2001 and 2002 using net and concurrent environmental data. Interannual differences were observed in zooplankton species composition, developmental stages, and abundances, which were linked to unusually high chlorophyll concentrations in the Bellingshausen Sea and Marguerite Bay during spring-summer 2000/2001. Copepod abundance was significantly higher in 2001 than in 2002 (46.3 and 28.3indm-3 in 2001 and 2002, respectively). During 2001, the copepod community was dominated by two species. Calanoides acutus, a herbivore, and Metridia gerlachei, an omnivore, accounted for 46% and 45% of the community, respectively. During 2002, however, several species were relatively abundant, including M. gerlachei, Ctenocalanus spp., C. acutus, Oithona spp., and Paraeuchaeta spp. Euphausiids also showed a rapid population response to high chlorophyll levels in 2001. Even though average total euphausiid (juvenile/adult) abundances were similar during both years (0.20 and 0.15indm-3 for 2001 and 2002, respectively), species composition showed marked interannual differences due to varying life history strategies among species. Thysanoessa macrura, which has a relatively rapid development from larval to juvenile stages between spring and fall of the same year, was the most abundant euphausiid in 2001. In contrast, Euphausia crystallorophias and Euphausia superba juvenile/adult populations increased in 2002, owing to a slower development in which larval stages overwinter and recruit to juveniles during the following spring/summer. Other zooplankton groups those were abundant in Marguerite Bay, but showed little variability between years, included ostracods, pteropods, chaetognaths, medusae, amphipods, and mysids. Summer phytoplankton concentrations strongly influenced copepods and euphausiids; however, there were no clear associations between zooplankton distributions and fall environmental conditions (i.e., pigment concentrations and surface salinity) or bottom depth. It is notable that ostracods and pteropods had the highest abundances of non-copepod zooplankton. JF - Deep Sea Research (Part II, Topical Studies in Oceanography) AU - Marrari, Marina AU - Daly, Kendra L AU - Timonin, Alexander AU - Semenova, Tatjana AD - NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA, marina@seawifs.gsfc.nasa.gov Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1599 EP - 1613 PB - Elsevier Science, P.O. Box 800 Kidlington Oxford OX5 1DX UK VL - 58 IS - 13-16 SN - 0967-0645, 0967-0645 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Ecology Abstracts; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Chlorophylls KW - Chlorophyll KW - Omnivores KW - Abundance KW - Phytoplankton KW - Ctenocalanus KW - Oithona KW - PSW, Bellingshausen Sea KW - Euphausia crystallorophias KW - Larval development KW - PSW, Antarctica, Antarctic Peninsula, Marguerite Bay KW - Ostracoda KW - Species Composition KW - Euphausia superba KW - Metridia gerlachei KW - Pigments KW - Salinity effects KW - Deep sea KW - Species composition KW - Marine KW - Plankton surveys KW - Data processing KW - Recruitment KW - Zooplankton KW - Larvae KW - Developmental stages KW - Oceanography KW - Thysanoessa macrura KW - Community composition KW - Herbivores KW - Life history KW - Environmental conditions KW - Calanoides acutus KW - O 1070:Ecology/Community Studies KW - Q1 08463:Habitat community studies KW - D 04040:Ecosystem and Ecology Studies KW - Q2 09406:Energy from the sea UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/888093464?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Deep+Sea+Research+%28Part+II%2C+Topical+Studies+in+Oceanography%29&rft.atitle=The+zooplankton+of+Marguerite+Bay%2C+Western+Antarctic+Peninsula-Part+I%3A+Abundance%2C+distribution%2C+and+population+response+to+variability+in+environmental+conditions&rft.au=Marrari%2C+Marina%3BDaly%2C+Kendra+L%3BTimonin%2C+Alexander%3BSemenova%2C+Tatjana&rft.aulast=Marrari&rft.aufirst=Marina&rft.date=2011-07-01&rft.volume=58&rft.issue=13-16&rft.spage=1599&rft.isbn=&rft.btitle=&rft.title=Deep+Sea+Research+%28Part+II%2C+Topical+Studies+in+Oceanography%29&rft.issn=09670645&rft_id=info:doi/10.1016%2Fj.dsr2.2010.12.007 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-09-01 N1 - Number of references - 6 N1 - Last updated - 2016-02-04 N1 - SubjectsTermNotLitGenreText - Chlorophylls; Plankton surveys; Community composition; Omnivores; Larvae; Larval development; Environmental conditions; Species Composition; Chlorophyll; Data processing; Zooplankton; Abundance; Recruitment; Phytoplankton; Developmental stages; Oceanography; Life history; Herbivores; Salinity effects; Pigments; Species composition; Deep sea; Euphausia superba; Metridia gerlachei; Ctenocalanus; Oithona; Euphausia crystallorophias; Thysanoessa macrura; Ostracoda; Calanoides acutus; PSW, Bellingshausen Sea; PSW, Antarctica, Antarctic Peninsula, Marguerite Bay; Marine DO - http://dx.doi.org/10.1016/j.dsr2.2010.12.007 ER - TY - JOUR T1 - A low mass for Mars from Jupiter's early gas-driven migration AN - 886908202; 2011-073161 JF - Nature (London) AU - Walsh, Kevin J AU - Morbidelli, Alessandro AU - Raymond, Sean N AU - O'Brien, David P AU - Mandell, Avi M Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 206 EP - 209 PB - Macmillan Journals, London VL - 475 IS - 7355 SN - 0028-0836, 0028-0836 KW - solar system KW - asteroids KW - orbits KW - Jupiter KW - Mars KW - simulation KW - protoplanetary disk KW - giant planets KW - gases KW - terrestrial planets KW - mass KW - genesis KW - planets KW - interplanetary comparison KW - outer planets KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/886908202?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+%28London%29&rft.atitle=A+low+mass+for+Mars+from+Jupiter%27s+early+gas-driven+migration&rft.au=Walsh%2C+Kevin+J%3BMorbidelli%2C+Alessandro%3BRaymond%2C+Sean+N%3BO%27Brien%2C+David+P%3BMandell%2C+Avi+M&rft.aulast=Walsh&rft.aufirst=Kevin&rft.date=2011-07-01&rft.volume=475&rft.issue=7355&rft.spage=206&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2Fnature10201 L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 30 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - asteroids; gases; genesis; giant planets; interplanetary comparison; Jupiter; Mars; mass; orbits; outer planets; planets; protoplanetary disk; simulation; solar system; terrestrial planets DO - http://dx.doi.org/10.1038/nature10201 ER - TY - JOUR T1 - Model, proxy and isotopic perspectives on the East African Humid Period AN - 884419990; 2011-070919 AB - Both North and East Africa experienced more humid conditions during the early and mid-Holocene epoch (11,000-5000 yr BP; 11-5 ka) relative to today. The North African Humid Period has been a major focus of paleoclimatic study, and represents a response of the hydrological cycle to the increase in boreal summer insolation and associated ocean, atmosphere and land surface feedbacks. Meanwhile, the mechanisms that caused the coeval East African Humid Period are poorly understood. Here, we use results from isotope-enabled coupled climate modeling experiments to investigate the cause of the East African Humid Period. The modeling results are interpreted alongside proxy records of both water balance and the isotopic composition of rainfall. Our simulations show that the orbitally-induced increase in dry season precipitation and the subsequent reduction in precipitation seasonality can explain the East African Humid Period, and this scenario agrees well with regional lake level and pollen paleoclimate data. Changes in zonal moisture flux from both the Atlantic and Indian Ocean account for the simulated increase in precipitation from June through November. Isotopic paleoclimate data and simulated changes in moisture source demonstrate that the western East African Rift Valley in particular experienced more humid conditions due to the influx of Atlantic moisture and enhanced convergence along the Congo Air Boundary. Our study demonstrates that zonal changes in moisture advection are an important determinant of climate variability in the East African region. JF - Earth and Planetary Science Letters AU - Tierney, Jessica E AU - Lewis, Sophie C AU - Cook, Benjamin I AU - LeGrande, Allegra N AU - Schmidt, Gavin A Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 103 EP - 112 PB - Elsevier, Amsterdam VL - 307 IS - 1-2 SN - 0012-821X, 0012-821X KW - terrestrial environment KW - isotopes KW - moisture KW - East Africa KW - atmospheric precipitation KW - simulation KW - paleoclimatology KW - Holocene KW - stable isotopes KW - orbital forcing KW - Cenozoic KW - atmospheric circulation KW - monsoons KW - hydrologic cycle KW - East African Rift KW - East African Humid Period KW - waxes KW - climate forcing KW - hydrology KW - Quaternary KW - middle Holocene KW - paleohydrology KW - humid environment KW - East African Lakes KW - water balance KW - models KW - Lake Tanganyika KW - organic compounds KW - Africa KW - isotope-enabled climate models KW - seasonal variations KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/884419990?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=Model%2C+proxy+and+isotopic+perspectives+on+the+East+African+Humid+Period&rft.au=Tierney%2C+Jessica+E%3BLewis%2C+Sophie+C%3BCook%2C+Benjamin+I%3BLeGrande%2C+Allegra+N%3BSchmidt%2C+Gavin+A&rft.aulast=Tierney&rft.aufirst=Jessica&rft.date=2011-07-01&rft.volume=307&rft.issue=1-2&rft.spage=103&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2011.04.038 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 74 N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - Africa; atmospheric circulation; atmospheric precipitation; Cenozoic; climate forcing; East Africa; East African Humid Period; East African Lakes; East African Rift; Holocene; humid environment; hydrologic cycle; hydrology; isotope-enabled climate models; isotopes; Lake Tanganyika; middle Holocene; models; moisture; monsoons; orbital forcing; organic compounds; paleoclimatology; paleohydrology; Quaternary; seasonal variations; simulation; stable isotopes; terrestrial environment; water balance; waxes DO - http://dx.doi.org/10.1016/j.epsl.2011.04.038 ER - TY - JOUR T1 - Simultaneous retrieval of aerosol and cloud properties during the MILAGRO field campaign AN - 883040054; 15199820 AB - Estimation of Direct Climate Forcing (DCF) due to aerosols in cloudy areas has historically been a difficult task, mainly because of a lack of appropriate measurements. Recently, passive remote sensing instruments have been developed that have the potential to retrieve both cloud and aerosol properties using polarimetric, multiple view angle, and multi spectral observations, and therefore determine DCF from aerosols above clouds. One such instrument is the Research Scanning Polarimeter (RSP), an airborne prototype of a sensor on the NASA Glory satellite, which unfortunately failed to reach orbit during its launch in March of 2011. In the spring of 2006, the RSP was deployed on an aircraft based in Veracruz, Mexico, as part of the Megacity Initiative: Local and Global Research Observations (MILAGRO) field campaign. On 13 March, the RSP over flew an aerosol layer lofted above a low altitude marine stratocumulus cloud close to shore in the Gulf of Mexico. We investigate the feasibility of retrieving aerosol properties over clouds using these data. Our approach is to first determine cloud droplet size distribution using the angular location of the cloud bow and other features in the polarized reflectance. The selected cloud was then used in a multiple scattering radiative transfer model optimization to determine the aerosol optical properties and fine tune the cloud size distribution. In this scene, we were able to retrieve aerosol optical depth, the fine mode aerosol size distribution parameters and the cloud droplet size distribution parameters to a degree of accuracy required for climate modeling. This required assumptions about the aerosol vertical distribution and the optical properties of the coarse aerosol size mode. A sensitivity study was also performed to place this study in the context of future systematic scanning polarimeter observations, which found that the aerosol complex refractive index can also be observed accurately if the aerosol optical depth is larger than roughly 0.8 at a wavelength of (0.555 mu m). JF - Atmospheric Chemistry and Physics AU - Knobelspiesse, K AU - Cairns, B AU - Redemann, J AU - Bergstrom, R W AU - Stohl, A AD - NASA Postdoctoral Program Fellow, NASA Goddard Institute for Space Studies, New York, New York, USA Y1 - 2011/07/01/ PY - 2011 DA - 2011 Jul 01 SP - 6245 EP - 6263 PB - European Geophysical Society, Max-Planck-Str. 13 Katlenburg-Lindau Germany VL - 11 IS - 13 SN - 1680-7316, 1680-7316 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Remote Sensing KW - Polarimeters KW - Cloud droplet size distribution KW - Reflectance KW - Optical properties KW - Gulfs KW - Multiple scattering KW - Aircraft KW - Optical Properties KW - Refractive index KW - Satellite Technology KW - Airborne sensing KW - Aerosols KW - Climate models KW - Marine stratocumulus KW - ASW, Mexico, Veracruz KW - Climates KW - Climate KW - Model Studies KW - ASW, Mexico Gulf KW - Clouds KW - Atmospheric forcing KW - Aerosol properties KW - Optical depth of aerosols KW - Radiative transfer KW - Size distribution KW - SW 5040:Data acquisition KW - M2 551.581:Latitudinal Influences (551.581) KW - Q2 09222:Methods and instruments KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/883040054?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Chemistry+and+Physics&rft.atitle=Simultaneous+retrieval+of+aerosol+and+cloud+properties+during+the+MILAGRO+field+campaign&rft.au=Knobelspiesse%2C+K%3BCairns%2C+B%3BRedemann%2C+J%3BBergstrom%2C+R+W%3BStohl%2C+A&rft.aulast=Knobelspiesse&rft.aufirst=K&rft.date=2011-07-01&rft.volume=11&rft.issue=13&rft.spage=6245&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics&rft.issn=16807316&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-08-01 N1 - Last updated - 2016-02-04 N1 - SubjectsTermNotLitGenreText - Airborne sensing; Aerosols; Optical properties; Atmospheric forcing; Climate; Radiative transfer; Refractive index; Size distribution; Clouds; Polarimeters; Reflectance; Cloud droplet size distribution; Climate models; Marine stratocumulus; Aerosol properties; Optical depth of aerosols; Multiple scattering; Remote Sensing; Satellite Technology; Aircraft; Climates; Optical Properties; Gulfs; Model Studies; ASW, Mexico Gulf; ASW, Mexico, Veracruz ER - TY - JOUR T1 - Seasonal Variations of Climate Feedbacks in the NCAR CCSM3 AN - 883030491; 15294800 AB - This study investigates the annual cycle of radiative contributions to global climate feedbacks. A partial radiative perturbation (PRP) technique is used to diagnose monthly radiative perturbations at the top of atmosphere (TOA) due to CO sub(2) forcing; surface temperature response; and water vapor, cloud, lapse rate, and surface albedo feedbacks using NCAR Community Climate System Model, version 3 (CCSM3) output from a Special Report on Emissions Scenarios (SRES) A1B emissions-scenario-forced climate simulation. The seasonal global mean longwave TOA radiative feedback was found to be minimal. However, the global mean shortwave (SW) TOA cloud and surface albedo radiative perturbations exhibit large seasonality. The largest contributions to the negative SW cloud feedback occur during summer in each hemisphere, marking the largest differences with previous results. Results suggest that intermodel spread in climate sensitivity may occur, partially from cloud and surface albedo feedback seasonality differences. Further, links between the climate feedback and surface temperature response seasonality are investigated, showing a strong relationship between the seasonal climate feedback distribution and the seasonal surface temperature response. JF - Journal of Climate AU - Taylor, Patrick C AU - Ellingson, Robert G AU - Cai, Ming AD - NASA Langley Research Center, 20 Langley Blvd., Mail Stop 420, Hampton, VA 23681, USA, patrick.c.taylor@nasa.gov Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 3433 EP - 3444 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 24 IS - 13 SN - 0894-8755, 0894-8755 KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - albedo KW - Surface temperatures KW - Atmospheric pollution models KW - Climate change KW - Sulfur dioxide KW - Emissions KW - Carbon dioxide emissions KW - Seasonal variations KW - Temperature effects KW - Seasonality KW - Climate models KW - Water vapor in the atmosphere KW - Annual variations KW - Albedo KW - Temperature KW - Simulation KW - Clouds KW - Numerical simulations KW - Atmospheric forcing KW - summer KW - Lapse rates KW - Carbon dioxide KW - Q2 09223:Optical properties KW - P 0000:AIR POLLUTION KW - M2 551.58:Climatology (551.58) KW - O 2050:Chemical Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/883030491?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Climate&rft.atitle=Seasonal+Variations+of+Climate+Feedbacks+in+the+NCAR+CCSM3&rft.au=Taylor%2C+Patrick+C%3BEllingson%2C+Robert+G%3BCai%2C+Ming&rft.aulast=Taylor&rft.aufirst=Patrick&rft.date=2011-07-01&rft.volume=24&rft.issue=13&rft.spage=3433&rft.isbn=&rft.btitle=&rft.title=Journal+of+Climate&rft.issn=08948755&rft_id=info:doi/10.1175%2F2011JCLI3862.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-08-01 N1 - Number of references - 24 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Clouds; Seasonality; Temperature effects; Annual variations; Albedo; Atmospheric forcing; Climate change; Carbon dioxide; Seasonal variations; Surface temperatures; Atmospheric pollution models; Climate models; Numerical simulations; Water vapor in the atmosphere; Lapse rates; Carbon dioxide emissions; albedo; Sulfur dioxide; Emissions; Temperature; Simulation; summer DO - http://dx.doi.org/10.1175/2011JCLI3862.1 ER - TY - JOUR T1 - CHARACTERIZATION OF THE RADIATION-DAMAGED PRECURSOR CELLS IN BONE MARROW BASED ON MODELING OF THE PERIPHERAL BLOOD GRANULOCYTES RESPONSE AN - 876248882; 15112373 AB - Bone marrow failure is the major cause of radiation lethality in mammals. Since bone marrow is distributed heterogeneously within trabecular spongiosa encased in a cortex of cortical bone, it is very difficult to measure the extent of the radiation damage directly. However, indirect consequences of damage to marrow, such as reductions in peripheral blood cell counts, are easily measured. In this paper, the authors investgate a mathematical model of the granulopoiesis system that provides quantitative relationships between reductions in peripheral blood cells and the bone marrow precursor cells following radiation exposure. A coarse-grained architecture of cellular replication and production as well as a mechanism for implicit regulation used in this model are discussed. The model is based on previous investigations of rodents. The authors test how well the model matches, in the principal dynamic regime of hematopoiesis, experimental data on large animals as well as empirical data on humans following radiation exposure. Due to its ability to infer, albeit indirectly, radiation damage to bone marrow, this model will provide a useful computational tool in radiation accident management, military operations involving nuclear warfare, radiation therapy, and space radiation risk assessment. JF - Health Physics AU - Hu, S AU - Cucinotta, F A AD - NASA Johnson Space Center, 2101 NASA Parkway, Houston, TX 77058 USA, Francis.A.Cucinotta@NASA.gov Y1 - 2011/07// PY - 2011 DA - Jul 2011 SP - 67 EP - 78 PB - Williams & Wilkins, 351 W. Camden St. Baltimore MD 21201 United States VL - 101 IS - 1 SN - 0017-9078, 0017-9078 KW - Risk Abstracts KW - Bone KW - Risk assessment KW - mammals KW - Radiation therapy KW - Accidents KW - Mathematical models KW - Bone marrow KW - Military KW - rodents KW - R2 23020:Technological risks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/876248882?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+Physics&rft.atitle=CHARACTERIZATION+OF+THE+RADIATION-DAMAGED+PRECURSOR+CELLS+IN+BONE+MARROW+BASED+ON+MODELING+OF+THE+PERIPHERAL+BLOOD+GRANULOCYTES+RESPONSE&rft.au=Hu%2C+S%3BCucinotta%2C+F+A&rft.aulast=Hu&rft.aufirst=S&rft.date=2011-07-01&rft.volume=101&rft.issue=1&rft.spage=67&rft.isbn=&rft.btitle=&rft.title=Health+Physics&rft.issn=00179078&rft_id=info:doi/10.1097%2FHP.0b013e31820dba65 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-07-01 N1 - Last updated - 2013-08-12 N1 - SubjectsTermNotLitGenreText - Radiation therapy; mammals; Risk assessment; Bone; Accidents; Mathematical models; Bone marrow; Military; rodents DO - http://dx.doi.org/10.1097/HP.0b013e31820dba65 ER - TY - JOUR T1 - Petrography of lunar meteorites Dhofar 925 and 961 AN - 1535205316; 2014-040156 JF - Meteoritics & Planetary Science AU - Joy, K H AU - Kring, D A AU - Zolensky, M E AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - Dhofar Meteorites KW - lunar meteorites KW - breccia KW - stony meteorites KW - impactites KW - Moon KW - impact breccia KW - clasts KW - achondrites KW - melts KW - South Pole-Aitken Basin KW - meteorites KW - impact melts KW - mineral composition KW - Dho 961 KW - Dho 925 KW - metamorphic rocks KW - petrography KW - chemical composition KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535205316?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Petrography+of+lunar+meteorites+Dhofar+925+and+961&rft.au=Joy%2C+K+H%3BKring%2C+D+A%3BZolensky%2C+M+E%3BAnonymous&rft.aulast=Joy&rft.aufirst=K&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A116&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 6 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; breccia; chemical composition; clasts; Dho 925; Dho 961; Dhofar Meteorites; impact breccia; impact melts; impactites; lunar meteorites; melts; metamorphic rocks; meteorites; mineral composition; Moon; petrography; South Pole-Aitken Basin; stony meteorites DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - ALH 84001; the key to unlocking secrets about Mars; 15 years and counting AN - 1535205311; 2014-040079 JF - Meteoritics & Planetary Science AU - Gibson, Everett K AU - McKay, D S AU - Thomas-Keprta, K L AU - Clemett, S J AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - stony meteorites KW - secondary minerals KW - Martian meteorites KW - astrobiology KW - Mars KW - aqueous solutions KW - achondrites KW - temperature KW - terrestrial planets KW - planets KW - meteorites KW - biogenic processes KW - Allan Hills Meteorites KW - Antarctica KW - low temperature KW - oxides KW - ALH 84001 KW - carbonates KW - magnetite KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535205311?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=ALH+84001%3B+the+key+to+unlocking+secrets+about+Mars%3B+15+years+and+counting&rft.au=Gibson%2C+Everett+K%3BMcKay%2C+D+S%3BThomas-Keprta%2C+K+L%3BClemett%2C+S+J%3BAnonymous&rft.aulast=Gibson&rft.aufirst=Everett&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A77&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 75th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 9 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; ALH 84001; Allan Hills Meteorites; Antarctica; aqueous solutions; astrobiology; biogenic processes; carbonates; low temperature; magnetite; Mars; Martian meteorites; meteorites; oxides; planets; secondary minerals; stony meteorites; temperature; terrestrial planets DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - The paths of ice grains in the solar nebula; irradiation and the formation of organics AN - 1535205293; 2014-040012 JF - Meteoritics & Planetary Science AU - Ciesla, F J AU - Sandford, S A AU - Mastrapa, R M AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - solar nebula KW - models KW - organic compounds KW - irradiation KW - electromagnetic radiation KW - ice KW - synthesis KW - protoplanetary disk KW - ultraviolet radiation KW - temperature KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535205293?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=The+paths+of+ice+grains+in+the+solar+nebula%3B+irradiation+and+the+formation+of+organics&rft.au=Ciesla%2C+F+J%3BSandford%2C+S+A%3BMastrapa%2C+R+M%3BAnonymous&rft.aulast=Ciesla&rft.aufirst=F&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A44&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01221.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 7 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - electromagnetic radiation; ice; irradiation; models; organic compounds; protoplanetary disk; solar nebula; synthesis; temperature; ultraviolet radiation DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01221.x ER - TY - JOUR T1 - A preliminary micro-spectroscopic analysis of the carbonaceous matter in the particles recovered by the Hayabusa Mission AN - 1535205274; 2014-040175 JF - Meteoritics & Planetary Science AU - Kitajima, F AU - Kotsugi, M AU - Ohkochi, T AU - Naraoka, H AU - Ishibashi, Y AU - Abe, M AU - Fujimura, A AU - Okazaki, R AU - Yada, T AU - Nakamura, T AU - Noguchi, T AU - Nagao, K AU - Tsuchiyama, A AU - Yurimoto, H AU - Ebihara, M AU - Mukai, T AU - Sandford, S A AU - Okada, T AU - Shirai, K AU - Ueno, M AU - Yoshikawa, M AU - Kawaguchi, J AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - carbonaceous composition KW - maturity KW - Itokawa Asteroid KW - asteroids KW - thermal metamorphism KW - metamorphism KW - order-disorder KW - infrared spectra KW - organic compounds KW - Raman spectra KW - insoluble residues KW - Hayabusa Mission KW - spectra KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535205274?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=A+preliminary+micro-spectroscopic+analysis+of+the+carbonaceous+matter+in+the+particles+recovered+by+the+Hayabusa+Mission&rft.au=Kitajima%2C+F%3BKotsugi%2C+M%3BOhkochi%2C+T%3BNaraoka%2C+H%3BIshibashi%2C+Y%3BAbe%2C+M%3BFujimura%2C+A%3BOkazaki%2C+R%3BYada%2C+T%3BNakamura%2C+T%3BNoguchi%2C+T%3BNagao%2C+K%3BTsuchiyama%2C+A%3BYurimoto%2C+H%3BEbihara%2C+M%3BMukai%2C+T%3BSandford%2C+S+A%3BOkada%2C+T%3BShirai%2C+K%3BUeno%2C+M%3BYoshikawa%2C+M%3BKawaguchi%2C+J%3BAnonymous&rft.aulast=Kitajima&rft.aufirst=F&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A126&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 8 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - asteroids; carbonaceous composition; Hayabusa Mission; infrared spectra; insoluble residues; Itokawa Asteroid; maturity; metamorphism; order-disorder; organic compounds; particles; Raman spectra; spectra; thermal metamorphism DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - "Solar-wind-rich" howardites; true regolith vs. CM-implanted components AN - 1535205235; 2014-039997 JF - Meteoritics & Planetary Science AU - Cartwright, Julia A AU - Mittlefehldt, D W AU - Herrin, J S AU - Herrmann, S AU - Ott, U AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 37 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - Xe-136/Xe-132 KW - stony meteorites KW - asteroids KW - Vesta Asteroid KW - isotopes KW - isotope ratios KW - HED meteorites KW - solar wind KW - mass spectra KW - Ne-22/Ne-21 KW - carbonaceous chondrites KW - Ne-22/Ne-20 KW - xenon KW - achondrites KW - stable isotopes KW - meteorites KW - howardite KW - noble gases KW - neon KW - spectra KW - CM chondrites KW - chondrites KW - regolith KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535205235?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=%22Solar-wind-rich%22+howardites%3B+true+regolith+vs.+CM-implanted+components&rft.au=Cartwright%2C+Julia+A%3BMittlefehldt%2C+D+W%3BHerrin%2C+J+S%3BHerrmann%2C+S%3BOtt%2C+U%3BAnonymous&rft.aulast=Cartwright&rft.aufirst=Julia&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=37&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01221.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 6 N1 - PubXState - AR N1 - Document feature - 1 table N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; asteroids; carbonaceous chondrites; chondrites; CM chondrites; HED meteorites; howardite; isotope ratios; isotopes; mass spectra; meteorites; Ne-22/Ne-20; Ne-22/Ne-21; neon; noble gases; regolith; solar wind; spectra; stable isotopes; stony meteorites; Vesta Asteroid; Xe-136/Xe-132; xenon DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01221.x ER - TY - JOUR T1 - Mineral inclusions in Monahans and Zag halites; evidence of the originating body AN - 1535204869; 2014-040064 JF - Meteoritics & Planetary Science AU - Fries, M D AU - Zolensky, M E AU - Steele, A AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - halides KW - icy satellites KW - ordinary chondrites KW - stony meteorites KW - aliphatic hydrocarbons KW - meteorites KW - inclusions KW - geysers KW - chlorides KW - spectra KW - satellites KW - chondrites KW - Zag Meteorite KW - parent bodies KW - H chondrites KW - halite KW - mineral inclusions KW - aqueous alteration KW - organic compounds KW - Raman spectra KW - Monahans Meteorite KW - hydrocarbons KW - fluid inclusions KW - Enceladus Satellite KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535204869?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Mineral+inclusions+in+Monahans+and+Zag+halites%3B+evidence+of+the+originating+body&rft.au=Fries%2C+M+D%3BZolensky%2C+M+E%3BSteele%2C+A%3BAnonymous&rft.aulast=Fries&rft.aufirst=M&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A70&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 75th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 4 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; aqueous alteration; chlorides; chondrites; Enceladus Satellite; fluid inclusions; geysers; H chondrites; halides; halite; hydrocarbons; icy satellites; inclusions; meteorites; mineral inclusions; Monahans Meteorite; ordinary chondrites; organic compounds; parent bodies; Raman spectra; satellites; spectra; stony meteorites; Zag Meteorite DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Does Vesta have moons? AN - 1535204867; 2014-040231 JF - Meteoritics & Planetary Science AU - McFadden, L A AU - Sykes, M AU - Joy, S AU - Tricarico, P AU - O'Brien, D AU - Li, J Y AU - Mutchler, M AU - Memarsadeghi, Nargess AU - Safavi, H AU - Gutierrez-Marques, P AU - Nathues, A AU - Mottola, S AU - Sierks, H AU - Schroder, S AU - Polansky, C AU - Jacobson, R AU - Russell, C T AU - Raymond, C A AU - Rayman, M AU - Weinstein-Weiss, S AU - Palmer, E AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - asteroids KW - Vesta Asteroid KW - rotation KW - satellites KW - size KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535204867?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Does+Vesta+have+moons%3F&rft.au=McFadden%2C+L+A%3BSykes%2C+M%3BJoy%2C+S%3BTricarico%2C+P%3BO%27Brien%2C+D%3BLi%2C+J+Y%3BMutchler%2C+M%3BMemarsadeghi%2C+Nargess%3BSafavi%2C+H%3BGutierrez-Marques%2C+P%3BNathues%2C+A%3BMottola%2C+S%3BSierks%2C+H%3BSchroder%2C+S%3BPolansky%2C+C%3BJacobson%2C+R%3BRussell%2C+C+T%3BRaymond%2C+C+A%3BRayman%2C+M%3BWeinstein-Weiss%2C+S%3BPalmer%2C+E%3BAnonymous&rft.aulast=McFadden&rft.aufirst=L&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A154&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - asteroids; rotation; satellites; size; Vesta Asteroid DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - A bi-modal distribution of ALHA77307 matrix olivine; evidence for fine-grained mixing from multiple reservoirs in the CO formation zone AN - 1535204863; 2014-040061 JF - Meteoritics & Planetary Science AU - Frank, David R AU - Zolensky, M E AU - Brearley, Adrian J AU - Le, L AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - silicates KW - stony meteorites KW - condensation KW - matrix KW - olivine group KW - carbonaceous chondrites KW - manganese KW - solar nebula KW - nesosilicates KW - CO chondrites KW - meteorites KW - Allan Hills Meteorites KW - mixing KW - metals KW - fine-grained materials KW - olivine KW - orthosilicates KW - ALHA 77307 KW - chondrites KW - chromium KW - bimodal distribution KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535204863?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=A+bi-modal+distribution+of+ALHA77307+matrix+olivine%3B+evidence+for+fine-grained+mixing+from+multiple+reservoirs+in+the+CO+formation+zone&rft.au=Frank%2C+David+R%3BZolensky%2C+M+E%3BBrearley%2C+Adrian+J%3BLe%2C+L%3BAnonymous&rft.aulast=Frank&rft.aufirst=David&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A68&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 75th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 3 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - ALHA 77307; Allan Hills Meteorites; bimodal distribution; carbonaceous chondrites; chondrites; chromium; CO chondrites; condensation; fine-grained materials; manganese; matrix; metals; meteorites; mixing; nesosilicates; olivine; olivine group; orthosilicates; silicates; solar nebula; stony meteorites DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Meteorites, organic and Fischer-Tropsch type reactions; production and destruction AN - 1535204829; 2014-040153 JF - Meteoritics & Planetary Science AU - Johnson, Natasha M AU - Burton, A S AU - Nuth, J A, III AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - experimental studies KW - hydrogenation KW - nitrogen KW - infrared spectra KW - early solar system KW - meteorites KW - FTIR spectra KW - carbon monoxide KW - organic compounds KW - organic acids KW - catalysis KW - chemical reactions KW - hydrogen KW - amino acids KW - spectra KW - Fischer-Tropsch type reactions KW - 05B:Petrology of meteorites and tektites KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535204829?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Meteorites%2C+organic+and+Fischer-Tropsch+type+reactions%3B+production+and+destruction&rft.au=Johnson%2C+Natasha+M%3BBurton%2C+A+S%3BNuth%2C+J+A%2C+III%3BAnonymous&rft.aulast=Johnson&rft.aufirst=Natasha&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A115&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 6 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - amino acids; carbon monoxide; catalysis; chemical reactions; early solar system; experimental studies; Fischer-Tropsch type reactions; FTIR spectra; hydrogen; hydrogenation; infrared spectra; meteorites; nitrogen; organic acids; organic compounds; spectra DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - First analysis of all xenon isotopes in Genesis solar wind AloS collector AN - 1535204802; 2014-040240 JF - Meteoritics & Planetary Science AU - Meshik, A AU - Pravdivtseva, Olga AU - Hohenberg, C M AU - Allton, J H AU - Burnett, D S AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - Genesis Mission KW - aluminum on sapphire collector KW - isotopes KW - AloS collector KW - noble gases KW - solar wind KW - xenon KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535204802?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=First+analysis+of+all+xenon+isotopes+in+Genesis+solar+wind+AloS+collector&rft.au=Meshik%2C+A%3BPravdivtseva%2C+Olga%3BHohenberg%2C+C+M%3BAllton%2C+J+H%3BBurnett%2C+D+S%3BAnonymous&rft.aulast=Meshik&rft.aufirst=A&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A159&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 4 N1 - PubXState - AR N1 - Document feature - 1 table N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - AloS collector; aluminum on sapphire collector; Genesis Mission; isotopes; lunar soils; noble gases; solar wind; xenon DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - A FIB-TEM study of Ca- and Fe-rich pyroxenes in the matrices of oxidized R and CV3 carbonaceous chondrites AN - 1535204795; 2014-040167 JF - Meteoritics & Planetary Science AU - Keller, Lindsay P AU - Rahman, Z AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - silicates KW - stony meteorites KW - Mount Prestrud Meteorites KW - ALH 85006 KW - pentlandite KW - CV chondrites KW - metasomatism KW - meteorites KW - pyroxene group KW - clinopyroxene KW - inclusions KW - chondrites KW - chain silicates KW - PRE 95404 KW - parent bodies KW - matrix KW - carbonaceous chondrites KW - TEM data KW - porosity KW - focused ion beam KW - Allan Hills Meteorites KW - hedenbergite KW - rumurutiites KW - petrography KW - sulfides KW - SEM data KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535204795?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=A+FIB-TEM+study+of+Ca-+and+Fe-rich+pyroxenes+in+the+matrices+of+oxidized+R+and+CV3+carbonaceous+chondrites&rft.au=Keller%2C+Lindsay+P%3BRahman%2C+Z%3BAnonymous&rft.aulast=Keller&rft.aufirst=Lindsay&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A122&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 2 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - ALH 85006; Allan Hills Meteorites; carbonaceous chondrites; chain silicates; chondrites; clinopyroxene; CV chondrites; focused ion beam; hedenbergite; inclusions; matrix; metasomatism; meteorites; Mount Prestrud Meteorites; parent bodies; pentlandite; petrography; porosity; PRE 95404; pyroxene group; rumurutiites; SEM data; silicates; stony meteorites; sulfides; TEM data DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Organic analysis of xenolithic clasts in meteorites AN - 1535204782; 2014-040165 JF - Meteoritics & Planetary Science AU - Kebukawa, Y AU - Zolensky, M E AU - Fries, M D AU - Steele, A AU - Kilcoyne, A L D AU - Cody, G D AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - ordinary chondrites KW - stony meteorites KW - Kuiper Belt KW - infrared spectra KW - Cold Bokkeveld Meteorite KW - XANES spectra KW - meteorites KW - FTIR spectra KW - howardite KW - inclusions KW - Sharps Meteorite KW - spectra KW - chondrites KW - Kapoeta Meteorite KW - xenoliths KW - Zag Meteorite KW - parent bodies KW - thermal metamorphism KW - H chondrites KW - carbonaceous chondrites KW - metamorphism KW - achondrites KW - X-ray spectra KW - organic compounds KW - petrography KW - CM chondrites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535204782?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Organic+analysis+of+xenolithic+clasts+in+meteorites&rft.au=Kebukawa%2C+Y%3BZolensky%2C+M+E%3BFries%2C+M+D%3BSteele%2C+A%3BKilcoyne%2C+A+L+D%3BCody%2C+G+D%3BAnonymous&rft.aulast=Kebukawa&rft.aufirst=Y&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A121&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 4 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; carbonaceous chondrites; chondrites; CM chondrites; Cold Bokkeveld Meteorite; FTIR spectra; H chondrites; howardite; inclusions; infrared spectra; Kapoeta Meteorite; Kuiper Belt; metamorphism; meteorites; ordinary chondrites; organic compounds; parent bodies; petrography; Sharps Meteorite; spectra; stony meteorites; thermal metamorphism; X-ray spectra; XANES spectra; xenoliths; Zag Meteorite DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Nakhla; a Martian meteorite with indigenous organic carbonaceous features AN - 1535204757; 2014-040232 JF - Meteoritics & Planetary Science AU - McKay, David S AU - Gibson, Everett K AU - Thomas-Keprta, K L AU - Clemett, S J AU - Le, L AU - Rahman, Z AU - Wentworth, S J AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - halides KW - alteration KW - nakhlite KW - stony meteorites KW - iddingsite KW - Martian meteorites KW - astrobiology KW - Mars KW - Nakhla Meteorite KW - SNC Meteorites KW - meteorites KW - sedimentary rocks KW - gypsum KW - chlorides KW - carbonaceous composition KW - chemically precipitated rocks KW - sulfates KW - secondary minerals KW - evaporites KW - achondrites KW - TEM data KW - halite KW - terrestrial planets KW - morphology KW - planets KW - organic compounds KW - evaporation KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535204757?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Nakhla%3B+a+Martian+meteorite+with+indigenous+organic+carbonaceous+features&rft.au=McKay%2C+David+S%3BGibson%2C+Everett+K%3BThomas-Keprta%2C+K+L%3BClemett%2C+S+J%3BLe%2C+L%3BRahman%2C+Z%3BWentworth%2C+S+J%3BAnonymous&rft.aulast=McKay&rft.aufirst=David&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A154&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; alteration; astrobiology; carbonaceous composition; chemically precipitated rocks; chlorides; evaporation; evaporites; gypsum; halides; halite; iddingsite; Mars; Martian meteorites; meteorites; morphology; Nakhla Meteorite; nakhlite; organic compounds; planets; secondary minerals; sedimentary rocks; SNC Meteorites; stony meteorites; sulfates; TEM data; terrestrial planets DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Nanoglobule abundances in IOM extracts; correlation with parent body processing AN - 1535204753; 2014-040001 JF - Meteoritics & Planetary Science AU - Changela, H G AU - Stroud, R M AU - De Gregorio, B T AU - Nittler, L R AU - Alexander, C M O AU - Cody, G D AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - ordinary chondrites KW - stony meteorites KW - parent bodies KW - nanoglobules KW - Elephant Moraine Meteorites KW - carbonaceous chondrites KW - L chondrites KW - Murchison Meteorite KW - meteorites KW - organic compounds KW - CR chondrites KW - insoluble residues KW - Queen Alexandra Range Meteorites KW - EET 92042 KW - classification KW - petrography KW - CM chondrites KW - QUE 87008 KW - heterogeneity KW - chondrites KW - SEM data KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535204753?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Nanoglobule+abundances+in+IOM+extracts%3B+correlation+with+parent+body+processing&rft.au=Changela%2C+H+G%3BStroud%2C+R+M%3BDe+Gregorio%2C+B+T%3BNittler%2C+L+R%3BAlexander%2C+C+M+O%3BCody%2C+G+D%3BAnonymous&rft.aulast=Changela&rft.aufirst=H&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A39&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01221.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 6 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - carbonaceous chondrites; chondrites; classification; CM chondrites; CR chondrites; EET 92042; Elephant Moraine Meteorites; heterogeneity; insoluble residues; L chondrites; meteorites; Murchison Meteorite; nanoglobules; ordinary chondrites; organic compounds; parent bodies; petrography; QUE 87008; Queen Alexandra Range Meteorites; SEM data; stony meteorites DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01221.x ER - TY - JOUR T1 - The 100th anniversary of the fall of Nakhla; the subdivision of BM1913,25 AN - 1535204744; 2014-040225 JF - Meteoritics & Planetary Science AU - McBride, Kathleen M AU - Righter, K AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - nakhlite KW - stony meteorites KW - Martian meteorites KW - igneous rocks KW - government agencies KW - research KW - Nakhla Meteorite KW - British Museum KW - achondrites KW - samples KW - meteorite falls KW - ultramafics KW - SNC Meteorites KW - history KW - meteorites KW - curation KW - plutonic rocks KW - pyroxenite KW - sampling KW - cumulates KW - NASA KW - collections KW - clinopyroxenite KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535204744?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=The+100th+anniversary+of+the+fall+of+Nakhla%3B+the+subdivision+of+BM1913%2C25&rft.au=McBride%2C+Kathleen+M%3BRighter%2C+K%3BAnonymous&rft.aulast=McBride&rft.aufirst=Kathleen&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A151&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 10 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; British Museum; clinopyroxenite; collections; cumulates; curation; government agencies; history; igneous rocks; Martian meteorites; meteorite falls; meteorites; Nakhla Meteorite; nakhlite; NASA; plutonic rocks; pyroxenite; research; samples; sampling; SNC Meteorites; stony meteorites; ultramafics DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Three-dimensional observation and image analysis of organic nanoglobules in carbonaceous chondrites using X-ray microtomography AN - 1535204737; 2014-040221 JF - Meteoritics & Planetary Science AU - Matsumoto, T AU - Tsuchiyama, A AU - Nakamura-Messenger, K AU - Zolensky, M E AU - Nakano, T AU - Uesugi, K AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - tomography KW - stony meteorites KW - nanoglobules KW - Tagish Lake Meteorite KW - carbonaceous chondrites KW - TEM data KW - synchrotron radiation KW - meteorites KW - organic compounds KW - X-ray data KW - computed tomography data KW - chondrites KW - microtomography KW - image analysis KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535204737?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Three-dimensional+observation+and+image+analysis+of+organic+nanoglobules+in+carbonaceous+chondrites+using+X-ray+microtomography&rft.au=Matsumoto%2C+T%3BTsuchiyama%2C+A%3BNakamura-Messenger%2C+K%3BZolensky%2C+M+E%3BNakano%2C+T%3BUesugi%2C+K%3BAnonymous&rft.aulast=Matsumoto&rft.aufirst=T&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A149&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 4 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - carbonaceous chondrites; chondrites; computed tomography data; image analysis; meteorites; microtomography; nanoglobules; organic compounds; stony meteorites; synchrotron radiation; Tagish Lake Meteorite; TEM data; tomography; X-ray data DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Hydrothermal synthesis of cubanite; implications for fluids on Comet 81P/Wild 2 and the CI-chondrite parent body AN - 1535204718; 2014-039959 JF - Meteoritics & Planetary Science AU - Berger, E L AU - Lauretta, D S AU - Keller, L P AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - stony meteorites KW - oxygen KW - metasomatism KW - iron KW - fugacity KW - temperature KW - meteorites KW - Wild 2 Comet KW - oxides KW - synthesis KW - chondrites KW - chemical composition KW - pH KW - CI chondrites KW - experimental studies KW - parent bodies KW - carbonaceous chondrites KW - cubanite KW - hydrothermal conditions KW - aqueous alteration KW - comets KW - metals KW - sulfides KW - magnetite KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535204718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Hydrothermal+synthesis+of+cubanite%3B+implications+for+fluids+on+Comet+81P%2FWild+2+and+the+CI-chondrite+parent+body&rft.au=Berger%2C+E+L%3BLauretta%2C+D+S%3BKeller%2C+L+P%3BAnonymous&rft.aulast=Berger&rft.aufirst=E&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A18&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01221.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 6 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - aqueous alteration; carbonaceous chondrites; chemical composition; chondrites; CI chondrites; comets; cubanite; experimental studies; fugacity; hydrothermal conditions; iron; magnetite; metals; metasomatism; meteorites; oxides; oxygen; parent bodies; pH; stony meteorites; sulfides; synthesis; temperature; Wild 2 Comet DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01221.x ER - TY - JOUR T1 - NomCom review of type specimen repositories AN - 1535204673; 2014-040107 JF - Meteoritics & Planetary Science AU - Herd, C D K AU - Smith, C L AU - Grossman, J N AU - Weisberg, M K AU - Welzenbach, L AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - nomenclature KW - meteorites KW - Meteorite Nomenclature Committee KW - curation KW - type specimens KW - policy KW - research KW - samples KW - collections KW - evaluation KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535204673?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=NomCom+review+of+type+specimen+repositories&rft.au=Herd%2C+C+D+K%3BSmith%2C+C+L%3BGrossman%2C+J+N%3BWeisberg%2C+M+K%3BWelzenbach%2C+L%3BAnonymous&rft.aulast=Herd&rft.aufirst=C+D&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A92&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 75th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 1 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - collections; curation; evaluation; Meteorite Nomenclature Committee; meteorites; nomenclature; policy; research; samples; type specimens DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Irradiation of FeS; relative sputtering rates of troilite and Mg silicates AN - 1535204659; 2014-040166 JF - Meteoritics & Planetary Science AU - Keller, Lindsay P AU - Rahman, Z AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - silicates KW - magnesian silicates KW - experimental studies KW - irradiation KW - stony meteorites KW - interstellar medium KW - Vigarano Meteorite KW - focused ion beam methods KW - carbonaceous chondrites KW - CV chondrites KW - TEM data KW - crystallinity KW - meteorites KW - iron sulfides KW - sulfur KW - chondrites KW - sulfides KW - troilite KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535204659?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Irradiation+of+FeS%3B+relative+sputtering+rates+of+troilite+and+Mg+silicates&rft.au=Keller%2C+Lindsay+P%3BRahman%2C+Z%3BAnonymous&rft.aulast=Keller&rft.aufirst=Lindsay&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A121&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 7 N1 - PubXState - AR N1 - Last updated - 2014-08-14 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - carbonaceous chondrites; chondrites; crystallinity; CV chondrites; experimental studies; focused ion beam methods; interstellar medium; iron sulfides; irradiation; magnesian silicates; meteorites; silicates; stony meteorites; sulfides; sulfur; TEM data; troilite; Vigarano Meteorite DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Hydrogen isotopes in the nakhlites; magmatic and atmospheric Martian reservoirs versus terrestrial contamination AN - 1535204643; 2014-040096 JF - Meteoritics & Planetary Science AU - Hallis, L J AU - Taylor, G J AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - alteration KW - terrestrial environment KW - nakhlite KW - stony meteorites KW - ion probe data KW - isotopes KW - Martian meteorites KW - solar wind KW - mass spectra KW - Mars KW - Nakhla Meteorite KW - stable isotopes KW - SNC Meteorites KW - meteorites KW - MIL 03346 KW - spectra KW - Miller Range Meteorites KW - MIL 090030 KW - isotope ratios KW - atmosphere KW - achondrites KW - terrestrial planets KW - planets KW - D/H KW - magmas KW - hydrogen KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535204643?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Hydrogen+isotopes+in+the+nakhlites%3B+magmatic+and+atmospheric+Martian+reservoirs+versus+terrestrial+contamination&rft.au=Hallis%2C+L+J%3BTaylor%2C+G+J%3BAnonymous&rft.aulast=Hallis&rft.aufirst=L&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A86&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 75th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 6 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; alteration; atmosphere; D/H; hydrogen; ion probe data; isotope ratios; isotopes; magmas; Mars; Martian meteorites; mass spectra; meteorites; MIL 03346; MIL 090030; Miller Range Meteorites; Nakhla Meteorite; nakhlite; planets; SNC Meteorites; solar wind; spectra; stable isotopes; stony meteorites; terrestrial environment; terrestrial planets DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Electron back-scatter diffraction study of iron metal in Almahata Sitta ureilite AN - 1535204635; 2014-040244 JF - Meteoritics & Planetary Science AU - Mikouchi, T AU - Goodrich, Cyrena A AU - Hoffmann, V H AU - Zolensky, M E AU - Sugiyama, K AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - stony meteorites KW - crystal systems KW - cohenite KW - electron diffraction data KW - crystal structure KW - kamacite KW - ureilite KW - carbides KW - intergrowths KW - achondrites KW - iron KW - meteorites KW - metals KW - Almahata Sitta Meteorite KW - alloys KW - cubic system KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535204635?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Electron+back-scatter+diffraction+study+of+iron+metal+in+Almahata+Sitta+ureilite&rft.au=Mikouchi%2C+T%3BGoodrich%2C+Cyrena+A%3BHoffmann%2C+V+H%3BZolensky%2C+M+E%3BSugiyama%2C+K%3BAnonymous&rft.aulast=Mikouchi&rft.aufirst=T&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A161&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 5 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; alloys; Almahata Sitta Meteorite; carbides; cohenite; crystal structure; crystal systems; cubic system; electron diffraction data; intergrowths; iron; kamacite; metals; meteorites; stony meteorites; ureilite DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Toward a regolith maturity index for howardites AN - 1535204613; 2014-040248 JF - Meteoritics & Planetary Science AU - Mittlefehldt, David W AU - Cartwright, Julia A AU - Herrin, J S AU - Johnson, K N AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - silicates KW - reworking KW - maturity KW - stony meteorites KW - asteroids KW - solar wind KW - mass spectra KW - electron probe data KW - meteorites KW - pyroxene group KW - howardite KW - noble gases KW - spectra KW - trace elements KW - heterogeneity KW - chain silicates KW - breccia KW - Vesta Asteroid KW - ejecta KW - achondrites KW - ICP mass spectra KW - petrography KW - polymict breccia KW - regolith KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535204613?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Toward+a+regolith+maturity+index+for+howardites&rft.au=Mittlefehldt%2C+David+W%3BCartwright%2C+Julia+A%3BHerrin%2C+J+S%3BJohnson%2C+K+N%3BAnonymous&rft.aulast=Mittlefehldt&rft.aufirst=David&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A163&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 9 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; asteroids; breccia; chain silicates; ejecta; electron probe data; heterogeneity; howardite; ICP mass spectra; mass spectra; maturity; meteorites; noble gases; petrography; polymict breccia; pyroxene group; regolith; reworking; silicates; solar wind; spectra; stony meteorites; trace elements; Vesta Asteroid DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Hayabusa sample curation at Planetary Material Sample Curation Facility in JAXA AN - 1535203861; 2014-040339 JF - Meteoritics & Planetary Science AU - Yada, T AU - Fujimura, A AU - Abe, M AU - Nakamura, T AU - Noguchi, T AU - Okazaki, R AU - Okada, T AU - Ishibashi, Y AU - Shirai, K AU - Zolensky, M E AU - Sandford, S A AU - Uesugi, M AU - Karouji, Y AU - Ueno, M AU - Mukai, T AU - Yoshikawa, M AU - Kawaguchi, J AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - curation KW - Itokawa Asteroid KW - asteroids KW - Japan Aerospace Exploration Agency KW - Hayabusa Mission KW - S-type asteroids KW - Planetary Material Sample Curation Facility KW - samples KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535203861?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Hayabusa+sample+curation+at+Planetary+Material+Sample+Curation+Facility+in+JAXA&rft.au=Yada%2C+T%3BFujimura%2C+A%3BAbe%2C+M%3BNakamura%2C+T%3BNoguchi%2C+T%3BOkazaki%2C+R%3BOkada%2C+T%3BIshibashi%2C+Y%3BShirai%2C+K%3BZolensky%2C+M+E%3BSandford%2C+S+A%3BUesugi%2C+M%3BKarouji%2C+Y%3BUeno%2C+M%3BMukai%2C+T%3BYoshikawa%2C+M%3BKawaguchi%2C+J%3BAnonymous&rft.aulast=Yada&rft.aufirst=T&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A257&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 10 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - asteroids; curation; Hayabusa Mission; Itokawa Asteroid; Japan Aerospace Exploration Agency; Planetary Material Sample Curation Facility; S-type asteroids; samples DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - In situ trace element measurements on Roda and the origin of diogenites AN - 1535203847; 2014-040249 JF - Meteoritics & Planetary Science AU - Mittlefehldt, D W AU - Herrin, J S AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - silicates KW - magma oceans KW - stony meteorites KW - in situ KW - incompatible elements KW - mass spectra KW - diogenite KW - achondrites KW - melts KW - lithophile elements KW - models KW - ICP mass spectra KW - meteorites KW - pyroxene group KW - cumulates KW - metals KW - Roda Meteorite KW - parent materials KW - spectra KW - rare earths KW - orthopyroxene KW - trace elements KW - chain silicates KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535203847?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=In+situ+trace+element+measurements+on+Roda+and+the+origin+of+diogenites&rft.au=Mittlefehldt%2C+D+W%3BHerrin%2C+J+S%3BAnonymous&rft.aulast=Mittlefehldt&rft.aufirst=D&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A163&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 4 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; chain silicates; cumulates; diogenite; ICP mass spectra; in situ; incompatible elements; lithophile elements; magma oceans; mass spectra; melts; metals; meteorites; models; orthopyroxene; parent materials; pyroxene group; rare earths; Roda Meteorite; silicates; spectra; stony meteorites; trace elements DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Oxygen and magnesium isotopic compositions of asteroid 25143 Itokawa returned by the Hayabusa Mission AN - 1535203840; 2014-040345 JF - Meteoritics & Planetary Science AU - Yurimoto, H AU - Abe, K AU - Abe, M AU - Ebihara, M AU - Fujimura, A AU - Hashiguchi, M AU - Hashizume, K AU - Ireland, Trevor R AU - Itoh, S AU - Katayama, J AU - Kato, C AU - Kawaguchi, J AU - Kawasaki, N AU - Kitajima, F AU - Kobayashi, S AU - Meike, T AU - Mukai, T AU - Nagao, K AU - Nakamura, T AU - Naraoka, H AU - Noguchi, T AU - Okazaki, R AU - Park, C AU - Sakamoto, N AU - Seto, Y AU - Takei, M AU - Tsuchiyama, A AU - Uesugi, M AU - Wakaki, S AU - Yada, T AU - Yamamoto, K AU - Yoshikawa, M AU - Zolensky, M E AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - silicates KW - ordinary chondrites KW - magnesium KW - stony meteorites KW - oxygen KW - ion probe data KW - asteroids KW - isotopes KW - mass spectra KW - olivine group KW - L chondrites KW - stable isotopes KW - meteorites KW - pyroxene group KW - Hayabusa Mission KW - olivine KW - orthosilicates KW - framework silicates KW - spectra KW - chondrites KW - O-17/O-16 KW - chain silicates KW - alkaline earth metals KW - plagioclase KW - Itokawa Asteroid KW - isotope ratios KW - LL chondrites KW - samples KW - nesosilicates KW - Mg-26/Mg-24 KW - metals KW - S-type asteroids KW - orthopyroxene KW - feldspar group KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535203840?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Oxygen+and+magnesium+isotopic+compositions+of+asteroid+25143+Itokawa+returned+by+the+Hayabusa+Mission&rft.au=Yurimoto%2C+H%3BAbe%2C+K%3BAbe%2C+M%3BEbihara%2C+M%3BFujimura%2C+A%3BHashiguchi%2C+M%3BHashizume%2C+K%3BIreland%2C+Trevor+R%3BItoh%2C+S%3BKatayama%2C+J%3BKato%2C+C%3BKawaguchi%2C+J%3BKawasaki%2C+N%3BKitajima%2C+F%3BKobayashi%2C+S%3BMeike%2C+T%3BMukai%2C+T%3BNagao%2C+K%3BNakamura%2C+T%3BNaraoka%2C+H%3BNoguchi%2C+T%3BOkazaki%2C+R%3BPark%2C+C%3BSakamoto%2C+N%3BSeto%2C+Y%3BTakei%2C+M%3BTsuchiyama%2C+A%3BUesugi%2C+M%3BWakaki%2C+S%3BYada%2C+T%3BYamamoto%2C+K%3BYoshikawa%2C+M%3BZolensky%2C+M+E%3BAnonymous&rft.aulast=Yurimoto&rft.aufirst=H&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A260&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 5 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alkaline earth metals; asteroids; chain silicates; chondrites; feldspar group; framework silicates; Hayabusa Mission; ion probe data; isotope ratios; isotopes; Itokawa Asteroid; L chondrites; LL chondrites; magnesium; mass spectra; metals; meteorites; Mg-26/Mg-24; nesosilicates; O-17/O-16; olivine; olivine group; ordinary chondrites; orthopyroxene; orthosilicates; oxygen; plagioclase; pyroxene group; S-type asteroids; samples; silicates; spectra; stable isotopes; stony meteorites DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Microstructures of rare silicate stardust from nova and supernovae AN - 1535202625; 2014-040381 JF - Meteoritics & Planetary Science AU - Nguyen, A N AU - Keller, L P AU - Rahman, Z AU - Messenger, S AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - silicates KW - magnesium KW - magnesian silicates KW - stony meteorites KW - oxygen KW - ion probe data KW - isotopes KW - microstructure KW - mass spectra KW - Acfer 094 KW - stable isotopes KW - meteorites KW - presolar grains KW - Mg-25/Mg-24 KW - spectra KW - chondrites KW - O-17/O-16 KW - alkaline earth metals KW - amorphous materials KW - isotope ratios KW - supernovas KW - Acfer Meteorites KW - O-18/O-16 KW - carbonaceous chondrites KW - TEM data KW - stars KW - Mg-26/Mg-24 KW - metals KW - NanoSIMS KW - novas KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535202625?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Microstructures+of+rare+silicate+stardust+from+nova+and+supernovae&rft.au=Nguyen%2C+A+N%3BKeller%2C+L+P%3BRahman%2C+Z%3BMessenger%2C+S%3BAnonymous&rft.aulast=Nguyen&rft.aufirst=A&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A177&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 8 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - Acfer 094; Acfer Meteorites; alkaline earth metals; amorphous materials; carbonaceous chondrites; chondrites; ion probe data; isotope ratios; isotopes; magnesian silicates; magnesium; mass spectra; metals; meteorites; Mg-25/Mg-24; Mg-26/Mg-24; microstructure; NanoSIMS; novas; O-17/O-16; O-18/O-16; oxygen; presolar grains; silicates; spectra; stable isotopes; stars; stony meteorites; supernovas; TEM data DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Non-uniform distribution of the Martian regolith component in shergottites AN - 1535202621; 2014-040417 JF - Meteoritics & Planetary Science AU - Rao, M Nageswara AU - Nyquist, Laurence E AU - Ross, D K AU - Park, J AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - irradiation KW - stony meteorites KW - Sm-149 KW - Martian meteorites KW - Mars KW - Elephant Moraine Meteorites KW - krypton KW - achondrites KW - terrestrial planets KW - SNC Meteorites KW - Kr-80 KW - planets KW - meteorites KW - EETA 79001 KW - shergottite KW - neutrons KW - noble gases KW - metals KW - samarium KW - rare earths KW - regolith KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535202621?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Non-uniform+distribution+of+the+Martian+regolith+component+in+shergottites&rft.au=Rao%2C+M+Nageswara%3BNyquist%2C+Laurence+E%3BRoss%2C+D+K%3BPark%2C+J%3BAnonymous&rft.aulast=Rao&rft.aufirst=M&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A195&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 8 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; EETA 79001; Elephant Moraine Meteorites; irradiation; Kr-80; krypton; Mars; Martian meteorites; metals; meteorites; neutrons; noble gases; planets; rare earths; regolith; samarium; shergottite; Sm-149; SNC Meteorites; stony meteorites; terrestrial planets DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Stable chlorine isotope study of Martian shergottites and nakhlites; whole rock and acid leachates and residues AN - 1535202619; 2014-040373 JF - Meteoritics & Planetary Science AU - Nakamura, Noboru AU - Nyquist, Laurence E AU - Reese, Y AU - Shih, C Y AU - Fujitani, T AU - Okano, O AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - Miller Range Meteorites KW - chlorine KW - nakhlite KW - stony meteorites KW - isotopes KW - Martian meteorites KW - isotope ratios KW - thermal ionization mass spectra KW - halogens KW - mass spectra KW - Nakhla Meteorite KW - achondrites KW - stable isotopes KW - SNC Meteorites KW - meteorites KW - shergottite KW - Cl-37/Cl-35 KW - Zagami Meteorite KW - MIL 03346 KW - leachate KW - spectra KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535202619?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Stable+chlorine+isotope+study+of+Martian+shergottites+and+nakhlites%3B+whole+rock+and+acid+leachates+and+residues&rft.au=Nakamura%2C+Noboru%3BNyquist%2C+Laurence+E%3BReese%2C+Y%3BShih%2C+C+Y%3BFujitani%2C+T%3BOkano%2C+O%3BAnonymous&rft.aulast=Nakamura&rft.aufirst=Noboru&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A173&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 7 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; chlorine; Cl-37/Cl-35; halogens; isotope ratios; isotopes; leachate; Martian meteorites; mass spectra; meteorites; MIL 03346; Miller Range Meteorites; Nakhla Meteorite; nakhlite; shergottite; SNC Meteorites; spectra; stable isotopes; stony meteorites; thermal ionization mass spectra; Zagami Meteorite DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Solar noble gases in Itokawa regolith materials returned by the Hayabusa Mission AN - 1535202583; 2014-040369 JF - Meteoritics & Planetary Science AU - Nagao, K AU - Okazaki, R AU - Nakamura, T AU - Miura, Y N AU - Osawa, T AU - Bajo, K AU - Matsuda, S AU - Ebihara, M AU - Ireland, Trevor R AU - Kitajima, F AU - Naraoka, H AU - Noguchi, T AU - Tsuchiyama, A AU - Uesugi, M AU - Yurimoto, H AU - Zolensky, M E AU - Shirai, K AU - Abe, M AU - Yada, T AU - Ishibashi, Y AU - Fujimura, A AU - Mukai, T AU - Ueno, M AU - Okada, T AU - Yoshikawa, M AU - Kawaguchi, J AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - silicates KW - Itokawa Asteroid KW - asteroids KW - isotopes KW - solar wind KW - cosmogenic elements KW - olivine group KW - argon KW - nesosilicates KW - noble gases KW - neon KW - Hayabusa Mission KW - olivine KW - orthosilicates KW - S-type asteroids KW - helium KW - cosmic rays KW - chemical composition KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535202583?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Solar+noble+gases+in+Itokawa+regolith+materials+returned+by+the+Hayabusa+Mission&rft.au=Nagao%2C+K%3BOkazaki%2C+R%3BNakamura%2C+T%3BMiura%2C+Y+N%3BOsawa%2C+T%3BBajo%2C+K%3BMatsuda%2C+S%3BEbihara%2C+M%3BIreland%2C+Trevor+R%3BKitajima%2C+F%3BNaraoka%2C+H%3BNoguchi%2C+T%3BTsuchiyama%2C+A%3BUesugi%2C+M%3BYurimoto%2C+H%3BZolensky%2C+M+E%3BShirai%2C+K%3BAbe%2C+M%3BYada%2C+T%3BIshibashi%2C+Y%3BFujimura%2C+A%3BMukai%2C+T%3BUeno%2C+M%3BOkada%2C+T%3BYoshikawa%2C+M%3BKawaguchi%2C+J%3BAnonymous&rft.aulast=Nagao&rft.aufirst=K&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A171&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 5 N1 - PubXState - AR N1 - Last updated - 2014-08-14 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - argon; asteroids; chemical composition; cosmic rays; cosmogenic elements; Hayabusa Mission; helium; isotopes; Itokawa Asteroid; neon; nesosilicates; noble gases; olivine; olivine group; orthosilicates; regolith; S-type asteroids; silicates; solar wind DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Kwajalein Atoll; a new collection site for micrometeorites AN - 1535202559; 2014-040332 JF - Meteoritics & Planetary Science AU - Wozniakiewicz, P J AU - Bradley, J P AU - Zolensky, M E AU - Brownlee, D E AU - Ishii, H A AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - micrometeorites KW - meteorites KW - collecting KW - atolls KW - reefs KW - Pacific Ocean KW - Oceania KW - Micronesia KW - Marshall Islands KW - Kwajalein Atoll KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535202559?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Kwajalein+Atoll%3B+a+new+collection+site+for+micrometeorites&rft.au=Wozniakiewicz%2C+P+J%3BBradley%2C+J+P%3BZolensky%2C+M+E%3BBrownlee%2C+D+E%3BIshii%2C+H+A%3BAnonymous&rft.aulast=Wozniakiewicz&rft.aufirst=P&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A253&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 9 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - atolls; collecting; Kwajalein Atoll; Marshall Islands; meteorites; micrometeorites; Micronesia; Oceania; Pacific Ocean; reefs DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - A quantitative, time-dependent model of oxygen isotopes in the solar nebula; Step 1 AN - 1535202555; 2014-040387 JF - Meteoritics & Planetary Science AU - Nuth, Joseph A AU - Paquette, J A AU - Farquhar, A AU - Johnson, N M AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - silicates KW - isotope fractionation KW - oxygen KW - isotopes KW - supernovas KW - photochemistry KW - solar nebula KW - models KW - lightning KW - quantitative analysis KW - stars KW - protostellar nebula KW - electrical currents KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535202555?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=A+quantitative%2C+time-dependent+model+of+oxygen+isotopes+in+the+solar+nebula%3B+Step+1&rft.au=Nuth%2C+Joseph+A%3BPaquette%2C+J+A%3BFarquhar%2C+A%3BJohnson%2C+N+M%3BAnonymous&rft.aulast=Nuth&rft.aufirst=Joseph&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A180&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 12 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - electrical currents; isotope fractionation; isotopes; lightning; models; oxygen; photochemistry; protostellar nebula; quantitative analysis; silicates; solar nebula; stars; supernovas DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Examination of organic compounds in the Hayabusa samples from the asteroid Itokawa AN - 1535201779; 2014-040378 JF - Meteoritics & Planetary Science AU - Naraoka, H AU - Mita, H AU - Hamase, K AU - Mita, M AU - Yabuta, H AU - Saito, K AU - Fukushima, K AU - Kitajima, F AU - Sandford, S A AU - Nakamura, T AU - Noguchi, T AU - Okazaki, R AU - Nagao, K AU - Ebihara, M AU - Yurimoto, H AU - Tsuchiyama, A AU - Abe, M AU - Shirai, K AU - Ueno, M AU - Yada, T AU - Ishibashi, Y AU - Okada, T AU - Fujimura, A AU - Mukai, T AU - Yoshikawa, M AU - Kawaguchi, J AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - Itokawa Asteroid KW - asteroids KW - alanine KW - separation KW - sample return KW - liquid chromatograms KW - glycine KW - hydrolysis KW - sample preparation KW - organic compounds KW - organic acids KW - acid hydrolysis KW - Hayabusa Mission KW - chromatograms KW - amino acids KW - S-type asteroids KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535201779?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Examination+of+organic+compounds+in+the+Hayabusa+samples+from+the+asteroid+Itokawa&rft.au=Naraoka%2C+H%3BMita%2C+H%3BHamase%2C+K%3BMita%2C+M%3BYabuta%2C+H%3BSaito%2C+K%3BFukushima%2C+K%3BKitajima%2C+F%3BSandford%2C+S+A%3BNakamura%2C+T%3BNoguchi%2C+T%3BOkazaki%2C+R%3BNagao%2C+K%3BEbihara%2C+M%3BYurimoto%2C+H%3BTsuchiyama%2C+A%3BAbe%2C+M%3BShirai%2C+K%3BUeno%2C+M%3BYada%2C+T%3BIshibashi%2C+Y%3BOkada%2C+T%3BFujimura%2C+A%3BMukai%2C+T%3BYoshikawa%2C+M%3BKawaguchi%2C+J%3BAnonymous&rft.aulast=Naraoka&rft.aufirst=H&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A175&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 4 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - acid hydrolysis; alanine; amino acids; asteroids; chromatograms; glycine; Hayabusa Mission; hydrolysis; Itokawa Asteroid; liquid chromatograms; organic acids; organic compounds; S-type asteroids; sample preparation; sample return; separation DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Rb-Sr and Sm-Nd study of Asuka-881394; evidence of "late" metamorphism AN - 1535201750; 2014-040388 JF - Meteoritics & Planetary Science AU - Nyquist, Laurence E AU - Shih, C Y AU - Reese, Y AU - Takeda, H AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - alkaline earth metals KW - stony meteorites KW - isotopes KW - isotope ratios KW - Asuka Meteorites KW - parent bodies KW - isochrons KW - thermal history KW - metamorphism KW - achondrites KW - stable isotopes KW - Rb/Sr KW - Sr-87/Sr-86 KW - meteorites KW - A-881394 KW - Sm/Nd KW - dates KW - metals KW - absolute age KW - thermochronology KW - eucrite KW - strontium KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535201750?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Rb-Sr+and+Sm-Nd+study+of+Asuka-881394%3B+evidence+of+%22late%22+metamorphism&rft.au=Nyquist%2C+Laurence+E%3BShih%2C+C+Y%3BReese%2C+Y%3BTakeda%2C+H%3BAnonymous&rft.aulast=Nyquist&rft.aufirst=Laurence&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A180&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 5 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - A-881394; absolute age; achondrites; alkaline earth metals; Asuka Meteorites; dates; eucrite; isochrons; isotope ratios; isotopes; metals; metamorphism; meteorites; parent bodies; Rb/Sr; Sm/Nd; Sr-87/Sr-86; stable isotopes; stony meteorites; strontium; thermal history; thermochronology DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - XANES analysis of organic residues from the irradiation of astrophysical ice analogs and comparison with Stardust samples AN - 1535201696; 2014-040434 JF - Meteoritics & Planetary Science AU - Sandford, Scott A AU - Nuevo, M AU - Milam, S N AU - Cody, G D AU - Kilcoyne, A L D AU - De Gregorio, B T AU - Stroud, R M AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - ammonium KW - irradiation KW - aliphatic hydrocarbons KW - XANES spectra KW - laboratory studies KW - amines KW - electromagnetic radiation KW - ice KW - carbon KW - amino acids KW - alcohols KW - Wild 2 Comet KW - spectra KW - water KW - experimental studies KW - Stardust Mission KW - naphthalene KW - glycine KW - alkanes KW - X-ray spectra KW - ultraviolet radiation KW - methanol KW - carbon monoxide KW - organic compounds KW - organic acids KW - comets KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - cometary dust KW - carbonyls KW - amides KW - aromatic hydrocarbons KW - 04:Extraterrestrial geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535201696?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=XANES+analysis+of+organic+residues+from+the+irradiation+of+astrophysical+ice+analogs+and+comparison+with+Stardust+samples&rft.au=Sandford%2C+Scott+A%3BNuevo%2C+M%3BMilam%2C+S+N%3BCody%2C+G+D%3BKilcoyne%2C+A+L+D%3BDe+Gregorio%2C+B+T%3BStroud%2C+R+M%3BAnonymous&rft.aulast=Sandford&rft.aufirst=Scott&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A204&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 9 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alcohols; aliphatic hydrocarbons; alkanes; amides; amines; amino acids; ammonium; aromatic hydrocarbons; carbon; carbon monoxide; carbonyls; cometary dust; comets; electromagnetic radiation; experimental studies; glycine; hydrocarbons; ice; irradiation; laboratory studies; methanol; naphthalene; organic acids; organic compounds; polycyclic aromatic hydrocarbons; spectra; Stardust Mission; ultraviolet radiation; water; Wild 2 Comet; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Mineralogy and thermal history of Itokawa surface particles recovered by Hayabusa Mission AN - 1535201631; 2014-040372 JF - Meteoritics & Planetary Science AU - Nakamura, Tomoki AU - Noguchi, T AU - Tanaka, M AU - Zolensky, M E AU - Kimura, M AU - Tshuchiyama, A AU - Nakato, Aiko AU - Ogami, T AU - Ishida, H AU - Uesugi, M AU - Yada, T AU - Shirai, K AU - Fujimura, A AU - Okazaki, R AU - Sandford, S A AU - Wakita, S AU - Ishibashi, Y AU - Abe, M AU - Okada, T AU - Ueno, M AU - Mukai, T AU - Yoshikawa, M AU - Kawaguchi, J AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - silicates KW - geologic thermometry KW - asteroids KW - olivine group KW - kamacite KW - thermal history KW - recrystallization KW - temperature KW - synchrotron radiation KW - pyroxene group KW - mineral composition KW - Hayabusa Mission KW - olivine KW - orthosilicates KW - framework silicates KW - alloys KW - chemical composition KW - chain silicates KW - plagioclase KW - Itokawa Asteroid KW - thermal metamorphism KW - metamorphism KW - nesosilicates KW - feldspar group KW - high temperature KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535201631?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Mineralogy+and+thermal+history+of+Itokawa+surface+particles+recovered+by+Hayabusa+Mission&rft.au=Nakamura%2C+Tomoki%3BNoguchi%2C+T%3BTanaka%2C+M%3BZolensky%2C+M+E%3BKimura%2C+M%3BTshuchiyama%2C+A%3BNakato%2C+Aiko%3BOgami%2C+T%3BIshida%2C+H%3BUesugi%2C+M%3BYada%2C+T%3BShirai%2C+K%3BFujimura%2C+A%3BOkazaki%2C+R%3BSandford%2C+S+A%3BWakita%2C+S%3BIshibashi%2C+Y%3BAbe%2C+M%3BOkada%2C+T%3BUeno%2C+M%3BMukai%2C+T%3BYoshikawa%2C+M%3BKawaguchi%2C+J%3BAnonymous&rft.aulast=Nakamura&rft.aufirst=Tomoki&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A172&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 4 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alloys; asteroids; chain silicates; chemical composition; feldspar group; framework silicates; geologic thermometry; Hayabusa Mission; high temperature; Itokawa Asteroid; kamacite; metamorphism; mineral composition; nesosilicates; olivine; olivine group; orthosilicates; plagioclase; pyroxene group; recrystallization; silicates; synchrotron radiation; temperature; thermal history; thermal metamorphism DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Taking planetary science and astronomy to students in the middle of the Pacific Ocean AN - 1535201580; 2014-040333 JF - Meteoritics & Planetary Science AU - Wozniakiewicz, P J AU - Bradley, J P AU - Zolensky, M E AU - Brownlee, D E AU - Ishii, H A AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - collecting KW - education KW - astronomy KW - planetary science KW - micrometeorites KW - meteorites KW - K-12 education KW - Pacific Ocean KW - Oceania KW - curricula KW - Micronesia KW - Marshall Islands KW - Kwajalein Atoll KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535201580?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Taking+planetary+science+and+astronomy+to+students+in+the+middle+of+the+Pacific+Ocean&rft.au=Wozniakiewicz%2C+P+J%3BBradley%2C+J+P%3BZolensky%2C+M+E%3BBrownlee%2C+D+E%3BIshii%2C+H+A%3BAnonymous&rft.aulast=Wozniakiewicz&rft.aufirst=P&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A254&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 9 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - astronomy; collecting; curricula; education; K-12 education; Kwajalein Atoll; Marshall Islands; meteorites; micrometeorites; Micronesia; Oceania; Pacific Ocean; planetary science DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - First direct evidence of asteroidal space weathering found on the surface of Itokawa particles AN - 1535201559; 2014-040384 JF - Meteoritics & Planetary Science AU - Noguchi, T AU - Nakamura, T AU - Kimura, M AU - Zolensky, M E AU - Tanaka, M AU - Hashimoto, T AU - Konno, M AU - Nakato, Aiko AU - Ogami, T AU - Fujimura, A AU - Abe, M AU - Yada, T AU - Mukai, T AU - Ueno, M AU - Okada, T AU - Shirai, K AU - Ishibashi, Y AU - Okazaki, R AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - space weathering KW - Itokawa Asteroid KW - asteroids KW - metals KW - solar wind KW - S-type asteroids KW - nanoparticles KW - weathering KW - TEM data KW - iron KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535201559?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=First+direct+evidence+of+asteroidal+space+weathering+found+on+the+surface+of+Itokawa+particles&rft.au=Noguchi%2C+T%3BNakamura%2C+T%3BKimura%2C+M%3BZolensky%2C+M+E%3BTanaka%2C+M%3BHashimoto%2C+T%3BKonno%2C+M%3BNakato%2C+Aiko%3BOgami%2C+T%3BFujimura%2C+A%3BAbe%2C+M%3BYada%2C+T%3BMukai%2C+T%3BUeno%2C+M%3BOkada%2C+T%3BShirai%2C+K%3BIshibashi%2C+Y%3BOkazaki%2C+R%3BAnonymous&rft.aulast=Noguchi&rft.aufirst=T&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A178&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 8 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - asteroids; iron; Itokawa Asteroid; metals; nanoparticles; S-type asteroids; solar wind; space weathering; TEM data; weathering DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - How representative of an asteroid's mineralogy are samples from its ponded deposits? AN - 1535201477; 2014-040350 JF - Meteoritics & Planetary Science AU - Zolensky, M E AU - Cribbs, W AU - Le, L AU - Ross, D K AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - silicates KW - settling KW - ordinary chondrites KW - stony meteorites KW - Eros Asteroid KW - asteroids KW - near-Earth asteroids KW - Sahara Meteorites KW - olivine group KW - CV chondrites KW - Sah 98328 KW - L chondrites KW - iron KW - meteorites KW - mineral composition KW - olivine KW - orthosilicates KW - chondrites KW - near-Earth objects KW - parent bodies KW - grain size KW - differentiation KW - Vigarano Meteorite KW - clasts KW - carbonaceous chondrites KW - ponded deposits KW - size KW - nesosilicates KW - NEAR Program KW - metals KW - sulfur KW - S-type asteroids KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535201477?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=How+representative+of+an+asteroid%27s+mineralogy+are+samples+from+its+ponded+deposits%3F&rft.au=Zolensky%2C+M+E%3BCribbs%2C+W%3BLe%2C+L%3BRoss%2C+D+K%3BAnonymous&rft.aulast=Zolensky&rft.aufirst=M&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A262&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 9 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - asteroids; carbonaceous chondrites; chondrites; clasts; CV chondrites; differentiation; Eros Asteroid; grain size; iron; L chondrites; metals; meteorites; mineral composition; NEAR Program; near-Earth asteroids; near-Earth objects; nesosilicates; olivine; olivine group; ordinary chondrites; orthosilicates; parent bodies; ponded deposits; S-type asteroids; Sah 98328; Sahara Meteorites; settling; silicates; size; stony meteorites; sulfur; Vigarano Meteorite DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Origin and evolution of Itokawa regolith particles based on three-dimensional shapes and sizes of Hayabusa samples AN - 1535201459; 2014-040305 JF - Meteoritics & Planetary Science AU - Tsuchiyama, A AU - Uesugi, M AU - Matsushima, T AU - Michikami, T AU - Kadono, T AU - Nakamura, T AU - Uesugi, K AU - Nakano, T AU - Sandford, S A AU - Noguchi, R AU - Matsumoto, T AU - Matsuno, J AU - Nagano, T AU - Imai, Y AU - Takeuchi, A AU - Suzuki, Y AU - Ogami, T AU - Katagiri, J AU - Ebihara, M AU - Ireland, Trevor R AU - Kitajima, F AU - Nagao, K AU - Naraoka, H AU - Noguchi, T AU - Okazaki, R AU - Yurimoto, H AU - Zolensky, M E AU - Mukai, T AU - Abe, M AU - Yada, T AU - Fujimura, A AU - Yoshikawa, M AU - Kawaguchi, J AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - tomography KW - ordinary chondrites KW - Itokawa Asteroid KW - stony meteorites KW - asteroids KW - LL chondrites KW - X-ray microtomography KW - meteorites KW - X-ray data KW - Hayabusa Mission KW - S-type asteroids KW - computed tomography data KW - chondrites KW - regolith KW - modal analysis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535201459?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Origin+and+evolution+of+Itokawa+regolith+particles+based+on+three-dimensional+shapes+and+sizes+of+Hayabusa+samples&rft.au=Tsuchiyama%2C+A%3BUesugi%2C+M%3BMatsushima%2C+T%3BMichikami%2C+T%3BKadono%2C+T%3BNakamura%2C+T%3BUesugi%2C+K%3BNakano%2C+T%3BSandford%2C+S+A%3BNoguchi%2C+R%3BMatsumoto%2C+T%3BMatsuno%2C+J%3BNagano%2C+T%3BImai%2C+Y%3BTakeuchi%2C+A%3BSuzuki%2C+Y%3BOgami%2C+T%3BKatagiri%2C+J%3BEbihara%2C+M%3BIreland%2C+Trevor+R%3BKitajima%2C+F%3BNagao%2C+K%3BNaraoka%2C+H%3BNoguchi%2C+T%3BOkazaki%2C+R%3BYurimoto%2C+H%3BZolensky%2C+M+E%3BMukai%2C+T%3BAbe%2C+M%3BYada%2C+T%3BFujimura%2C+A%3BYoshikawa%2C+M%3BKawaguchi%2C+J%3BAnonymous&rft.aulast=Tsuchiyama&rft.aufirst=A&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A240&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 3 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - asteroids; chondrites; computed tomography data; Hayabusa Mission; Itokawa Asteroid; LL chondrites; meteorites; modal analysis; ordinary chondrites; regolith; S-type asteroids; stony meteorites; tomography; X-ray data; X-ray microtomography DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Handling heavenly jewels; 35 years of Antarctic meteorite processing at Johnson Space Center AN - 1535201443; 2014-040436 JF - Meteoritics & Planetary Science AU - Satterwhite, Cecilia E AU - McBride, Kathleen M AU - Harrington, R AU - Schwarz, C M AU - Righter, K AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - Johnson Space Center KW - Antarctic Search for Meteorites program KW - government agencies KW - thin sections KW - samples KW - ANSMET program KW - Meteorite Processing Laboratory KW - meteorites KW - curation KW - sample preparation KW - Antarctica KW - NASA KW - polished sections KW - collections KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535201443?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Handling+heavenly+jewels%3B+35+years+of+Antarctic+meteorite+processing+at+Johnson+Space+Center&rft.au=Satterwhite%2C+Cecilia+E%3BMcBride%2C+Kathleen+M%3BHarrington%2C+R%3BSchwarz%2C+C+M%3BRighter%2C+K%3BAnonymous&rft.aulast=Satterwhite&rft.aufirst=Cecilia&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A205&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 4 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - ANSMET program; Antarctic Search for Meteorites program; Antarctica; collections; curation; government agencies; Johnson Space Center; Meteorite Processing Laboratory; meteorites; NASA; polished sections; sample preparation; samples; thin sections DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Nano-scale anatomy of Stardust cometary tracks continued; bulbous tracks 147 and 168 AN - 1535201442; 2014-040374 JF - Meteoritics & Planetary Science AU - Nakamura-Messenger, K AU - Keller, L P AU - Messenger, S AU - Clemett, S J AU - Nguyen, A N AU - Frank, D AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - silicates KW - particle tracks KW - pentlandite KW - olivine group KW - iron KW - pyroxene group KW - mineral composition KW - olivine KW - orthosilicates KW - Wild 2 Comet KW - framework silicates KW - alloys KW - chain silicates KW - plagioclase KW - Stardust Mission KW - albite KW - intergrowths KW - TEM data KW - nesosilicates KW - comets KW - metals KW - nickel KW - aerogel KW - sulfides KW - nanoparticles KW - feldspar group KW - cometary dust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535201442?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Nano-scale+anatomy+of+Stardust+cometary+tracks+continued%3B+bulbous+tracks+147+and+168&rft.au=Nakamura-Messenger%2C+K%3BKeller%2C+L+P%3BMessenger%2C+S%3BClemett%2C+S+J%3BNguyen%2C+A+N%3BFrank%2C+D%3BAnonymous&rft.aulast=Nakamura-Messenger&rft.aufirst=K&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A173&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 4 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - aerogel; albite; alloys; chain silicates; cometary dust; comets; feldspar group; framework silicates; intergrowths; iron; metals; mineral composition; nanoparticles; nesosilicates; nickel; olivine; olivine group; orthosilicates; particle tracks; pentlandite; plagioclase; pyroxene group; silicates; Stardust Mission; sulfides; TEM data; Wild 2 Comet DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Impact melt in small simple lunar highlands craters AN - 1535201441; 2014-040406 JF - Meteoritics & Planetary Science AU - Plescia, Jeffrey B AU - Cintala, M J AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - cratering KW - imagery KW - Moon KW - Lunar Reconnaissance Orbiter KW - Lunar Reconnaissance Orbiter Camera KW - trajectories KW - lunar highlands KW - melts KW - lunar craters KW - size KW - impact melts KW - craters KW - volume KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535201441?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Impact+melt+in+small+simple+lunar+highlands+craters&rft.au=Plescia%2C+Jeffrey+B%3BCintala%2C+M+J%3BAnonymous&rft.aulast=Plescia&rft.aufirst=Jeffrey&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A190&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 11 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - cratering; craters; imagery; impact melts; lunar craters; lunar highlands; Lunar Reconnaissance Orbiter; Lunar Reconnaissance Orbiter Camera; melts; Moon; size; trajectories; volume DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - The role of synchrotron radiation-based X-ray microtomography in examination of small extraterrestrial samples recovered by spacecraft in the Stardust and Hayabusa Missions AN - 1535200863; 2014-040304 JF - Meteoritics & Planetary Science AU - Tsuchiyama, A AU - Nakamura, T AU - Uesugi, M AU - Uesugi, K AU - Nakano, T AU - Takeuchi, A AU - Suzuki, Y AU - Iida, Y AU - Niimi, R AU - Noguchi, R AU - Matsumoto, T AU - Matsuno, J AU - Nagano, T AU - Imai, Y AU - Ogami, T AU - Noguchi, T AU - Zolensky, M E AU - Mukai, T AU - Abe, M AU - Yada, T AU - Fujimura, A AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - tomography KW - methods KW - imagery KW - Itokawa Asteroid KW - asteroids KW - Stardust Mission KW - X-ray microtomography KW - comae KW - synchrotron radiation KW - nondestructive methods KW - morphology KW - mineral composition KW - comets KW - computed tomography KW - identification KW - Hayabusa Mission KW - X-ray analysis KW - Wild 2 Comet KW - signal-to-noise ratio KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535200863?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=The+role+of+synchrotron+radiation-based+X-ray+microtomography+in+examination+of+small+extraterrestrial+samples+recovered+by+spacecraft+in+the+Stardust+and+Hayabusa+Missions&rft.au=Tsuchiyama%2C+A%3BNakamura%2C+T%3BUesugi%2C+M%3BUesugi%2C+K%3BNakano%2C+T%3BTakeuchi%2C+A%3BSuzuki%2C+Y%3BIida%2C+Y%3BNiimi%2C+R%3BNoguchi%2C+R%3BMatsumoto%2C+T%3BMatsuno%2C+J%3BNagano%2C+T%3BImai%2C+Y%3BOgami%2C+T%3BNoguchi%2C+T%3BZolensky%2C+M+E%3BMukai%2C+T%3BAbe%2C+M%3BYada%2C+T%3BFujimura%2C+A%3BAnonymous&rft.aulast=Tsuchiyama&rft.aufirst=A&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A239&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 5 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - asteroids; comae; comets; computed tomography; Hayabusa Mission; identification; imagery; Itokawa Asteroid; methods; mineral composition; morphology; nondestructive methods; regolith; signal-to-noise ratio; Stardust Mission; synchrotron radiation; tomography; Wild 2 Comet; X-ray analysis; X-ray microtomography DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - ESA Lunar Lander's search for volatiles AN - 1535200802; 2014-040363 JF - Meteoritics & Planetary Science AU - Morse, A D AU - Barber, S J AU - Pillinger, J M AU - Sheridan, S AU - Wright, I P AU - Gibson, Everett K AU - Merrifield, J A AU - Waltham, N R AU - Waugh, L J AU - Pillinger, C T AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - polar regions KW - technology KW - in situ KW - European Space Agency KW - Moon KW - isotopes KW - landing sites KW - exploration KW - models KW - Lunar Lander KW - volatiles KW - planning KW - permanently shadowed regions KW - robotics KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535200802?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=ESA+Lunar+Lander%27s+search+for+volatiles&rft.au=Morse%2C+A+D%3BBarber%2C+S+J%3BPillinger%2C+J+M%3BSheridan%2C+S%3BWright%2C+I+P%3BGibson%2C+Everett+K%3BMerrifield%2C+J+A%3BWaltham%2C+N+R%3BWaugh%2C+L+J%3BPillinger%2C+C+T%3BAnonymous&rft.aulast=Morse&rft.aufirst=A&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A168&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 7 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - European Space Agency; exploration; in situ; isotopes; landing sites; Lunar Lander; models; Moon; permanently shadowed regions; planning; polar regions; robotics; technology; volatiles DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Mineralogical, chemical, organic and microbial properties of subsurface soil cores from Mars Desert Research Station (Utah, USA): Phyllosilicate and sulfate analogues to Mars mission landing sites AN - 1238122325; 15769217 AB - We collected and analysed soil cores from four geologic units surrounding Mars Desert Research Station (MDRS) Utah, USA, including Mancos Shale, Dakota Sandstone, Morrison formation (Brushy Basin member) and Summerville formation. The area is an important geochemical and morphological analogue to terrains on Mars. Soils were analysed for mineralogy by a Terra X-ray diffractometer (XRD), a field version of the CheMin instrument on the Mars Science Laboratory (MSL) mission (2012 landing). Soluble ion chemistry, total organic content and identity and distribution of microbial populations were also determined. The Terra data reveal that Mancos and Morrison soils are rich in phyllosilicates similar to those observed on Mars from orbital measurements (montmorillonite, nontronite and illite). Evaporite minerals observed include gypsum, thenardite, polyhalite and calcite. Soil chemical analysis shows sulfate the dominant anion in all soils and SO4>>CO3, as on Mars. The cation pattern Na>Ca>Mg is seen in all soils except for the Summerville where Ca>Na. In all soils, SO4 correlates with Na, suggesting sodium sulfates are the dominant phase. Oxidizable organics are low in all soils and range from a high of 0.7% in the Mancos samples to undetectable at a detection limit of 0.1% in the Morrison soils. Minerals rich in chromium and vanadium were identified in Morrison soils that result from diagenetic replacement of organic compounds. Depositional environment, geologic history and mineralogy all affect the ability to preserve and detect organic compounds. Subsurface biosphere populations were revealed to contain organisms from all three domains (Archaea, Bacteria and Eukarya) with cell density between 3.0106 and 1.8107 cells ml-1 at the deepest depth. These measurements are analogous to data that could be obtained on future robotic or human Mars missions and results are relevant to the MSL mission that will investigate phyllosilicates on Mars. JF - International Journal of Astrobiology AU - Stoker, Carol R AU - Clarke, Jonathan AU - Direito, Susana OL AU - Blake, David AU - Martin, Kevin R AU - Zavaleta, Jhony AU - Foing, Bernard AD - NASA Ames Research Center, Space Science Division, Moffett Field, CA 94035, USA, carol.stoker@nasa.gov carol.stoker@nasa.gov carol.stoker@nasa.gov carol.stoker@nasa.gov carol.stoker@nasa.gov carol.stoker@nasa.gov Y1 - 2011/07// PY - 2011 DA - Jul 2011 SP - 269 EP - 289 PB - Cambridge University Press, The Edinburgh Building, Cambridge CB2 2RU United Kingdom VL - 10 IS - 3 SN - 1473-5504, 1473-5504 KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Anions KW - Basins KW - Biosphere KW - Cell density KW - Chromium KW - Cores KW - Data processing KW - Deserts KW - Ionizing radiation KW - Minerals KW - Montmorillonite KW - Organic compounds KW - Soil KW - Sulfate KW - Vanadium KW - calcite KW - gypsum KW - robotics KW - sodium sulfate KW - Archaea KW - A 01400:Soil Microbes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1238122325?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Astrobiology&rft.atitle=Mineralogical%2C+chemical%2C+organic+and+microbial+properties+of+subsurface+soil+cores+from+Mars+Desert+Research+Station+%28Utah%2C+USA%29%3A+Phyllosilicate+and+sulfate+analogues+to+Mars+mission+landing+sites&rft.au=Stoker%2C+Carol+R%3BClarke%2C+Jonathan%3BDireito%2C+Susana+OL%3BBlake%2C+David%3BMartin%2C+Kevin+R%3BZavaleta%2C+Jhony%3BFoing%2C+Bernard&rft.aulast=Stoker&rft.aufirst=Carol&rft.date=2011-07-01&rft.volume=10&rft.issue=3&rft.spage=269&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Astrobiology&rft.issn=14735504&rft_id=info:doi/10.1017%2FS1473550411000115 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-12-01 N1 - Number of references - 15 N1 - Last updated - 2012-12-14 N1 - SubjectsTermNotLitGenreText - Vanadium; Data processing; Anions; Chromium; Cell density; Basins; Biosphere; sodium sulfate; calcite; Sulfate; Soil; Cores; Deserts; Ionizing radiation; gypsum; Montmorillonite; robotics; Organic compounds; Minerals; Archaea DO - http://dx.doi.org/10.1017/S1473550411000115 ER - TY - NEWS T1 - Getting Ready for the Next Big Solar Storm AN - 874170832 JF - UPI Space Daily AU - Dr Tony Phillips for NASA Science News Y1 - 2011/06/30/ PY - 2011 DA - 2011 Jun 30 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/874170832?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Getting+Ready+for+the+Next+Big+Solar+Storm&rft.au=Dr+Tony+Phillips+for+NASA+Science+News&rft.aulast=Dr+Tony+Phillips+for+NASA+Science+News&rft.aufirst=&rft.date=2011-06-30&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-07-23 ER - TY - NEWS T1 - Is La Nada To Blame For Recent Wild US Weather Ride AN - 874170826 JF - UPI Space Daily AU - Dauna Coulter for NASA Science News Y1 - 2011/06/30/ PY - 2011 DA - 2011 Jun 30 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/874170826?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=Is+La+Nada+To+Blame+For+Recent+Wild+US+Weather+Ride&rft.au=Dauna+Coulter+for+NASA+Science+News&rft.aulast=Dauna+Coulter+for+NASA+Science+News&rft.aufirst=&rft.date=2011-06-30&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-07-23 ER - TY - CPAPER T1 - Kennedy Space Center Launch Complex 39 Climate Change Impacts and Vulnerability T2 - 2011 104th Air and Waste Management Association Annual Conference (A&WMA's 2011) AN - 1312984831; 6084597 JF - 2011 104th Air and Waste Management Association Annual Conference (A&WMA's 2011) AU - Shaffer, John Y1 - 2011/06/21/ PY - 2011 DA - 2011 Jun 21 KW - Climatic changes KW - Vulnerability UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312984831?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+104th+Air+and+Waste+Management+Association+Annual+Conference+%28A%26WMA%27s+2011%29&rft.atitle=Kennedy+Space+Center+Launch+Complex+39+Climate+Change+Impacts+and+Vulnerability&rft.au=Shaffer%2C+John&rft.aulast=Shaffer&rft.aufirst=John&rft.date=2011-06-21&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+104th+Air+and+Waste+Management+Association+Annual+Conference+%28A%26WMA%27s+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://events.awma.org/ace2011/PRINTER%20READY%20FINAL%20PROGRAM.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Advances in Solid State Joining of High Temperature Alloys T2 - 21st International Offshore and Polar Engineering Conference (ISOPE-2011) AN - 1313034247; 6085831 JF - 21st International Offshore and Polar Engineering Conference (ISOPE-2011) AU - Ding, J AU - Schneider, J Y1 - 2011/06/19/ PY - 2011 DA - 2011 Jun 19 KW - Alloys KW - high temperature KW - Temperature effects KW - alloys UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313034247?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=21st+International+Offshore+and+Polar+Engineering+Conference+%28ISOPE-2011%29&rft.atitle=Advances+in+Solid+State+Joining+of+High+Temperature+Alloys&rft.au=Ding%2C+J%3BSchneider%2C+J&rft.aulast=Ding&rft.aufirst=J&rft.date=2011-06-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=21st+International+Offshore+and+Polar+Engineering+Conference+%28ISOPE-2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.isope.org/conferences/2011/Pap-2011%20Maui-sessOrder-0422-webupdate-jc.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - An analysis of cloud overlap at a midlatitude atmospheric observation facility AN - 876229680; 14992679 AB - An analysis of cloud overlap based on high temporal and vertical resolution retrievals of cloud condensate from a suite of ground instruments is performed at a mid-latitude atmospheric observation facility. Two facets of overlap are investigated: cloud fraction overlap, expressed in terms of a parameter " alpha " indicating the relative contributions of maximum and random overlap, and overlap of horizontal distributions of condensate, expressed in terms of the correlation coefficient of condensate ranks. The degree of proximity to the random and maximum overlap assumptions is also expressed in terms of a decorrelation length, a convenient scalar parameter for overlap parameters assumed to decay exponentially with separation distance. Both cloud fraction overlap and condensate overlap show significant seasonal variations with a clear tendency for more maximum overlap in the summer months. More maximum overlap is also generally observed when the domain size used to define cloud fractions increases. These tendencies also exist for rank correlations, but are significantly weaker. Hitherto unexplored overlap parameter dependencies are investigated by analyzing mean parameter differences at fixed separation distance within different layers of the atmospheric column, and by searching for possible systematic relationships between alpha and rank correlation. We find that for the same separation distance the overlap parameters are significantly distinct in different atmospheric layers, and that random cloud fraction overlap is usually associated with more randomly overlapped condensate ranks. JF - Atmospheric Chemistry and Physics AU - Oreopoulos, L AU - Norris, P M AD - Laboratory for Atmospheres, NASA-GSFC, Greenbelt, MD, USA Y1 - 2011/06/16/ PY - 2011 DA - 2011 Jun 16 SP - 5557 EP - 5567 PB - European Geophysical Society, Max-Planck-Str. 13 Katlenburg-Lindau Germany VL - 11 IS - 12 SN - 1680-7316, 1680-7316 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Atmospheric Chemistry KW - Correlation Coefficient KW - Seasonal Variations KW - Horizontal distribution KW - Correlations KW - Systematics KW - Clouds KW - Condensates KW - Atmospheric chemistry KW - Seasonal variations KW - SW 5010:Network design KW - Q2 09188:Atmospheric chemistry KW - M2 551.576:Clouds (551.576) KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/876229680?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Chemistry+and+Physics&rft.atitle=An+analysis+of+cloud+overlap+at+a+midlatitude+atmospheric+observation+facility&rft.au=Oreopoulos%2C+L%3BNorris%2C+P+M&rft.aulast=Oreopoulos&rft.aufirst=L&rft.date=2011-06-16&rft.volume=11&rft.issue=12&rft.spage=5557&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics&rft.issn=16807316&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-07-01 N1 - Last updated - 2014-05-02 N1 - SubjectsTermNotLitGenreText - Clouds; Horizontal distribution; Atmospheric chemistry; Correlations; Seasonal variations; Atmospheric Chemistry; Seasonal Variations; Correlation Coefficient; Condensates; Systematics ER - TY - CPAPER T1 - Using NASA Satellite Information and Tools for Improved Water Resources Management T2 - 130th Annual Conference and Exposition of the American Water Works Association (ACE 11) AN - 1313046382; 6065324 JF - 130th Annual Conference and Exposition of the American Water Works Association (ACE 11) AU - Toll, David Y1 - 2011/06/12/ PY - 2011 DA - 2011 Jun 12 KW - Remote sensing KW - Water resources management KW - Satellites KW - Water resources KW - Water management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313046382?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=130th+Annual+Conference+and+Exposition+of+the+American+Water+Works+Association+%28ACE+11%29&rft.atitle=Using+NASA+Satellite+Information+and+Tools+for+Improved+Water+Resources+Management&rft.au=Toll%2C+David&rft.aulast=Toll&rft.aufirst=David&rft.date=2011-06-12&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=130th+Annual+Conference+and+Exposition+of+the+American+Water+Works+Association+%28ACE+11%29&rft.issn=&rft_id=info:doi/ L2 - http://apps.awwa.org/ebusmain/default.aspx?tabid=265&viewer=dates&meetingid=A11 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - PROBING THE UNIVERSE'S TILT WITH THE COSMIC INFRARED BACKGROUND DIPOLE AN - 920809086; 16203176 AB - Conventional interpretation of the observed cosmic microwave background (CMB) dipole is that all of it is produced by local peculiar motions. Alternative explanations requiring part of the dipole to be primordial have received support from measurements of large-scale bulk flows. A test of the two hypotheses is whether other cosmic dipoles produced by collapsed structures later than the last scattering coincide with the CMB dipole. One background is the cosmic infrared background (CIB) whose absolute spectrum was measured to ~30% by the COBE satellite. Over the 100-500 Delta *mm wavelength range its spectral energy distribution can provide a probe of its alignment with the CMB. This is tested with the COBE FIRAS data set which is available for such a measurement because of its low noise and frequency resolution which are important for Galaxy subtraction. Although the FIRAS instrument noise is in principle low enough to determine the CIB dipole, the Galactic foreground is sufficiently close spectrally to keep the CIB dipole hidden. A similar analysis is performed with DIRBE, which--because of the limited frequency coverage--provides a poorer data set. We discuss strategies for measuring the CIB dipole with future instruments to probe the tilt and apply it to the Planck, Herschel, and the proposed Pixie missions. We demonstrate that a future FIRAS-like instrument with instrument noise a factor of ~10 lower than FIRAS would make a statistically significant measurement of the CIB dipole. We find that the Planck and Herschel data sets will not allow a robust CIB dipole measurement. The Pixie instrument promises a determination of the CIB dipole and its alignment with either the CMB dipole or the dipole galaxy acceleration vector. JF - Astrophysical Journal AU - Fixsen, D J AU - Kashlinsky, A Y1 - 2011/06/10/ PY - 2011 DA - 2011 Jun 10 PB - Institute of Physics Publishing Inc., The Public Ledger Building, Suite 929 Philadelphia PA 19106 United States IS - 1 SN - 0004-637X, 0004-637X KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - Acoustic waves KW - Noise levels KW - Remote sensing KW - Galaxies KW - Statistical analysis KW - Cosmic microwave background KW - Measuring instruments KW - Noise pollution KW - Universe KW - Satellites KW - P 7000:NOISE KW - M2 524:Stars, Universe (524) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/920809086?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrophysical+Journal&rft.atitle=PROBING+THE+UNIVERSE%27S+TILT+WITH+THE+COSMIC+INFRARED+BACKGROUND+DIPOLE&rft.au=Fixsen%2C+D+J%3BKashlinsky%2C+A&rft.aulast=Fixsen&rft.aufirst=D&rft.date=2011-06-10&rft.volume=&rft.issue=1&rft.spage=jQuery1323907828567%3D%2748%27%3E&rft.isbn=&rft.btitle=&rft.title=Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F734%2F1%2F61 L2 - http://iopscience.iop.org/0004-637X/734/1/61 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-02-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Acoustic waves; Statistical analysis; Galaxies; Cosmic microwave background; Noise pollution; Universe; Remote sensing; Noise levels; Measuring instruments; Satellites DO - http://dx.doi.org/10.1088/0004-637X/734/1/61 ER - TY - JOUR T1 - Temporal and spatial aspects of gas release during the 2010 apparition of Comet 103P/Hartley 2 AN - 1542638533; 2014-044685 AB - We report measurements of eight primary volatiles (H (sub 2) O, HCN, CH (sub 4) , C (sub 2) H (sub 6) , CH (sub 3) OH, C (sub 2) H (sub 2) , H (sub 2) CO, and NH (sub 3) ) and two product species (OH and NH (sub 2) ) in comet 103P/Hartley 2 using high-dispersion infrared spectroscopy. We quantified the long- and short-term behavior of volatile release over a three-month interval that encompassed the comet's close approach to Earth, its perihelion passage, and flyby of the comet by the Deep Impact spacecraft during the EPOXI mission. We present production rates for individual species, their mixing ratios relative to water, and their spatial distributions in the coma on multiple dates. The production rates for water, ethane, HCN, and methanol vary in a manner consistent with independent measures of nucleus rotation, but mixing ratios for HCN, C (sub 2) H (sub 6) , and CH (sub 3) OH are independent of rotational phase. Our results demonstrate that the ensemble average composition of gas released from the nucleus is well defined and relatively constant over the three-month interval (September 18 through December 17). If individual vents vary in composition, enough diverse vents must be active simultaneously to approximate (in sum) the bulk composition of the nucleus. The released primary volatiles exhibit diverse spatial properties which favor the presence of separate polar and apolar ice phases in the nucleus, establish dust and gas release from icy clumps (and from the nucleus), and provide insights into the driver for the cyanogen (CN) polar jet. The spatial distributions of C (sub 2) H (sub 6) and HCN along the near-polar jet (UT October 19.5) and nearly orthogonal to it (UT October 22.5) are discussed relative to the origin of CN. The ortho-para ratio (OPR) of water was 2.85 + or - 0.20; the lower bound (2.65) defines T (sub spin) > 32 K. These values are consistent with results returned from the Infrared Space Observatory in 1997. Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The = Astrophysical Journal. Letters AU - Mumma, M J AU - Bonev, B P AU - Villanueva, G L AU - Paganini, L AU - DiSanti, M A AU - Gibb, E L AU - Keane, J V AU - Meech, K J AU - Blake, G A AU - Ellis, R S AU - Lippi, M AU - Boehnhardt, H AU - Magee-Sauer, K Y1 - 2011/06/10/ PY - 2011 DA - 2011 Jun 10 EP - Paper no. L7 PB - IOP Publishing, Bristol VL - 734 IS - 1 SN - 2041-8205, 2041-8205 KW - water KW - ammonium KW - methane KW - aliphatic hydrocarbons KW - cometary nuclei KW - formaldehyde KW - ethane KW - alkanes KW - methanol KW - infrared spectra KW - gases KW - spatial distribution KW - volatiles KW - organic compounds KW - Hartley 2 Comet KW - comets KW - hydrocarbons KW - alcohols KW - hydrogen cyanide KW - temporal distribution KW - spectra KW - cyanides KW - EPOXI Mission KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1542638533?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+%3D+Astrophysical+Journal.+Letters&rft.atitle=Temporal+and+spatial+aspects+of+gas+release+during+the+2010+apparition+of+Comet+103P%2FHartley+2&rft.au=Mumma%2C+M+J%3BBonev%2C+B+P%3BVillanueva%2C+G+L%3BPaganini%2C+L%3BDiSanti%2C+M+A%3BGibb%2C+E+L%3BKeane%2C+J+V%3BMeech%2C+K+J%3BBlake%2C+G+A%3BEllis%2C+R+S%3BLippi%2C+M%3BBoehnhardt%2C+H%3BMagee-Sauer%2C+K&rft.aulast=Mumma&rft.aufirst=M&rft.date=2011-06-10&rft.volume=734&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+%3D+Astrophysical+Journal.+Letters&rft.issn=20418205&rft_id=info:doi/10.1088%2F2041-8205%2F734%2F1%2FL7 L2 - http://iopscience.iop.org/2041-8205 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 31 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2014-11-13 N1 - SubjectsTermNotLitGenreText - alcohols; aliphatic hydrocarbons; alkanes; ammonium; cometary nuclei; comets; cyanides; EPOXI Mission; ethane; formaldehyde; gases; Hartley 2 Comet; hydrocarbons; hydrogen cyanide; infrared spectra; methane; methanol; organic compounds; spatial distribution; spectra; temporal distribution; volatiles; water DO - http://dx.doi.org/10.1088/2041-8205/734/1/L7 ER - TY - JOUR T1 - A Bacterium That Can Grow by Using Arsenic Instead of Phosphorus AN - 904471352; 14957720 AB - Life is mostly composed of the elements carbon, hydrogen, nitrogen, oxygen, sulfur, and phosphorus. Although these six elements make up nucleic acids, proteins, and lipids and thus the bulk of living matter, it is theoretically possible that some other elements in the periodic table could serve the same functions. Here, we describe a bacterium, strain GFAJ-1 of the Halomonadaceae, isolated from Mono Lake, California, that is able to substitute arsenic for phosphorus to sustain its growth. Our data show evidence for arsenate in macromolecules that normally contain phosphate, most notably nucleic acids and proteins. Exchange of one of the major bio-elements may have profound evolutionary and geochemical importance. JF - Science (Washington) AU - Wolfe-Simon, Felisa AU - Blum, Jodi Switzer AU - Kulp, Thomas R AU - Gordon, Gwyneth W AU - Hoeft, Shelley E AU - Pett-Ridge, Jennifer AU - Stolz, John F AU - Webb, Samuel M AU - Weber, Peter K AU - Davies, Paul CW AU - Anbar, Ariel D AU - Oremland, Ronald S AD - NASA Astrobiology Institute, USA. U.S. Geological Survey, Menlo Park, CA 94025, USA. School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, USA. Lawrence Livermore National Laboratory, Livermore, CA 94551, USA. Department of Biological Sciences, Duquesne University, Pittsburgh, PA 15282, USA. Stanford Synchrotron Radiation Lightsource, Menlo Park, CA 94025, USA. BEYOND: Center for Fundamental Concepts in Science, Arizona State University, Tempe, AZ 85287, USA. Department of Chemistry and Biochemistry, Arizona State University, Tempe, AZ 85287, USA. Y1 - 2011/06/03/ PY - 2011 DA - 2011 Jun 03 SP - 1163 EP - 1166 PB - American Association for the Advancement of Science, 1200 New York Avenue, NW Washington DC 20005 USA VL - 332 IS - 6034 SN - 0036-8075, 0036-8075 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Pollution Abstracts KW - Sulfur KW - Macromolecules KW - Lipids KW - Phosphorus KW - Hydrogen KW - Lakes KW - Carbon KW - USA, California KW - USA, California, Mono L. KW - Bacteria KW - Arsenic KW - Data processing KW - Geochemistry KW - Oxygen KW - Phosphates KW - nucleic acids KW - Phosphate KW - Proteins KW - Nucleic acids KW - Evolution KW - Nitrogen KW - A 01450:Environmental Pollution & Waste Treatment KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/904471352?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+%28Washington%29&rft.atitle=A+Bacterium+That+Can+Grow+by+Using+Arsenic+Instead+of+Phosphorus&rft.au=Wolfe-Simon%2C+Felisa%3BBlum%2C+Jodi+Switzer%3BKulp%2C+Thomas+R%3BGordon%2C+Gwyneth+W%3BHoeft%2C+Shelley+E%3BPett-Ridge%2C+Jennifer%3BStolz%2C+John+F%3BWebb%2C+Samuel+M%3BWeber%2C+Peter+K%3BDavies%2C+Paul+CW%3BAnbar%2C+Ariel+D%3BOremland%2C+Ronald+S&rft.aulast=Wolfe-Simon&rft.aufirst=Felisa&rft.date=2011-06-03&rft.volume=332&rft.issue=6034&rft.spage=1163&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - Sulfur; Arsenic; Macromolecules; Data processing; Lipids; Phosphorus; Hydrogen; Oxygen; Lakes; nucleic acids; Carbon; Phosphate; Evolution; Nitrogen; Phosphates; Geochemistry; Proteins; Nucleic acids; Bacteria; USA, California; USA, California, Mono L. ER - TY - JOUR T1 - Response to Comments on "A Bacterium That Can Grow Using Arsenic Instead of Phosphorus" AN - 1017955058; 14957731 AB - Concerns have been raised about our recent study suggesting that arsenic (As) substitutes for phosphorus in major biomolecules of a bacterium that tolerates extreme As concentrations. We welcome the opportunity to better explain our methods and results and to consider alternative interpretations. We maintain that our interpretation of As substitution, based on multiple congruent lines of evidence, is viable. JF - Science (Washington) AU - Wolfe-Simon, Felisa AU - Blum, Jodi Switzer AU - Kulp, Thomas R AU - Gordon, Gwyneth W AU - Hoeft, Shelley E AU - Pett-Ridge, Jennifer AU - Stolz, John F AU - Webb, Samuel M AU - Weber, Peter K AU - Davies, Paul CW AU - Anbar, Ariel D AU - Oremland, Ronald S AD - NASA Astrobiology Institute, USA. U.S. Geological Survey, Menlo Park, CA 94025, USA. School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, USA. Lawrence Livermore National Laboratory, Livermore, CA 94551, USA. Department of Biological Sciences, Duquesne University, Pittsburgh, PA 15282, USA. Stanford Synchrotron Radiation Lightsource, Menlo Park, CA 94025, USA. BEYOND: Center for Fundamental Concepts in Science, Arizona State University, Tempe, AZ 85287, USA. Department of Chemistry and Biochemistry, Arizona State University, Tempe, AZ 85287, USA. Y1 - 2011/06/03/ PY - 2011 DA - 2011 Jun 03 SP - 1149 PB - American Association for the Advancement of Science, 1200 New York Avenue, NW Washington DC 20005 USA VL - 332 IS - 6034 SN - 0036-8075, 0036-8075 KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Bacteria KW - Arsenic KW - Phosphorus KW - A 01490:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1017955058?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+%28Washington%29&rft.atitle=Response+to+Comments+on+%22A+Bacterium+That+Can+Grow+Using+Arsenic+Instead+of+Phosphorus%22&rft.au=Wolfe-Simon%2C+Felisa%3BBlum%2C+Jodi+Switzer%3BKulp%2C+Thomas+R%3BGordon%2C+Gwyneth+W%3BHoeft%2C+Shelley+E%3BPett-Ridge%2C+Jennifer%3BStolz%2C+John+F%3BWebb%2C+Samuel+M%3BWeber%2C+Peter+K%3BDavies%2C+Paul+CW%3BAnbar%2C+Ariel+D%3BOremland%2C+Ronald+S&rft.aulast=Wolfe-Simon&rft.aufirst=Felisa&rft.date=2011-06-03&rft.volume=332&rft.issue=6034&rft.spage=1149&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-05-01 N1 - Last updated - 2013-09-09 N1 - SubjectsTermNotLitGenreText - Arsenic; Phosphorus; Bacteria ER - TY - JOUR T1 - The Maria asteroid family; genetic relationships and a plausible source of mesosiderites near the 3:1 Kirkwood Gap AN - 911675106; 2012-004627 JF - Icarus AU - Fieber-Beyer, Sherry K AU - Gaffey, Michael J AU - Kelley, Michael S AU - Reddy, Vishnu AU - Reynolds, Chalbeth M AU - Hicks, Tony Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 524 EP - 537 PB - Elsevier, New York, NY VL - 213 IS - 2 SN - 0019-1035, 0019-1035 KW - stony irons KW - ordinary chondrites KW - stony meteorites KW - asteroids KW - Maria asteroid family KW - orbits KW - parent bodies KW - H chondrites KW - meteoroids KW - infrared spectra KW - meteorites KW - Kirkwood Gap KW - Earth-crossing orbits KW - mineral composition KW - dynamics KW - mesosiderite KW - spectra KW - chondrites KW - Bella Asteroid KW - collections KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911675106?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=The+Maria+asteroid+family%3B+genetic+relationships+and+a+plausible+source+of+mesosiderites+near+the+3%3A1+Kirkwood+Gap&rft.au=Fieber-Beyer%2C+Sherry+K%3BGaffey%2C+Michael+J%3BKelley%2C+Michael+S%3BReddy%2C+Vishnu%3BReynolds%2C+Chalbeth+M%3BHicks%2C+Tony&rft.aulast=Fieber-Beyer&rft.aufirst=Sherry&rft.date=2011-06-01&rft.volume=213&rft.issue=2&rft.spage=524&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2011.03.009 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 97 N1 - PubXState - NY N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - asteroids; Bella Asteroid; chondrites; collections; dynamics; Earth-crossing orbits; H chondrites; infrared spectra; Kirkwood Gap; Maria asteroid family; mesosiderite; meteorites; meteoroids; mineral composition; orbits; ordinary chondrites; parent bodies; spectra; stony irons; stony meteorites DO - http://dx.doi.org/10.1016/j.icarus.2011.03.009 ER - TY - JOUR T1 - Mineralogy and thermal properties of V-type Asteroid 956 Elisa; evidence for diogenitic material from the Spitzer IRS (5-35 mu m) spectrum AN - 911675104; 2012-004626 JF - Icarus AU - Lim, Lucy F AU - Emery, Joshua P AU - Moskovitz, Nicholas A Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 510 EP - 523 PB - Elsevier, New York, NY VL - 213 IS - 2 SN - 0019-1035, 0019-1035 KW - silicates KW - near-infrared spectra KW - thermal inertia KW - stony meteorites KW - asteroids KW - olivine group KW - infrared spectra KW - Elisa Asteroid KW - spatial distribution KW - meteorites KW - photometry KW - pyroxene group KW - mineral composition KW - cumulates KW - rotation KW - olivine KW - orthosilicates KW - thermal emission KW - spectra KW - chain silicates KW - Spitzer Space Telescope KW - lightcurves KW - HED meteorites KW - grain size KW - thermal properties KW - diogenite KW - achondrites KW - emissivity KW - nesosilicates KW - models KW - deconvolution KW - eucrite KW - thermomechanical properties KW - V-type asteroids KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911675104?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Mineralogy+and+thermal+properties+of+V-type+Asteroid+956+Elisa%3B+evidence+for+diogenitic+material+from+the+Spitzer+IRS+%285-35+mu+m%29+spectrum&rft.au=Lim%2C+Lucy+F%3BEmery%2C+Joshua+P%3BMoskovitz%2C+Nicholas+A&rft.aulast=Lim&rft.aufirst=Lucy&rft.date=2011-06-01&rft.volume=213&rft.issue=2&rft.spage=510&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2010.12.006 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 57 N1 - PubXState - NY N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - achondrites; asteroids; chain silicates; cumulates; deconvolution; diogenite; Elisa Asteroid; emissivity; eucrite; grain size; HED meteorites; infrared spectra; lightcurves; meteorites; mineral composition; models; near-infrared spectra; nesosilicates; olivine; olivine group; orthosilicates; photometry; pyroxene group; rotation; silicates; spatial distribution; spectra; Spitzer Space Telescope; stony meteorites; thermal emission; thermal inertia; thermal properties; thermomechanical properties; V-type asteroids DO - http://dx.doi.org/10.1016/j.icarus.2010.12.006 ER - TY - JOUR T1 - Origin and evolution of prebiotic organic matter as inferred from the Tagish Lake Meteorite AN - 890673184; 2011-076439 AB - The complex suite of organic materials in carbonaceous chondrite meteorites probably originally formed in the interstellar medium and/or the solar protoplanetary disk, but was subsequently modified in the meteorites' asteroidal parent bodies. The mechanisms of formation and modification are still very poorly understood. We carried out a systematic study of variations in the mineralogy, petrology, and soluble and insoluble organic matter in distinct fragments of the Tagish Lake meteorite. The variations correlate with indicators of parent body aqueous alteration. At least some molecules of prebiotic importance formed during the alteration. JF - Science AU - Herd, Christopher D K AU - Blinova, Alexandra AU - Simkus, Danielle N AU - Huang, Yongsong AU - Tarozo, Rafael AU - Alexander, Conel M O'D AU - Gyngard, Frank AU - Nittler, Larry R AU - Cody, George D AU - Fogel, Marilyn L AU - Kebukawa, Yoko AU - Kilcoyne, A L David AU - Hilts, Robert W AU - Slater, Greg F AU - Glavin, Daniel P AU - Dworkin, Jason P AU - Callahan, Michael P AU - Elsila, Jamie E AU - De Gregorio, Bradley T AU - Stroud, Rhonda M Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 1304 EP - 1307 PB - American Association for the Advancement of Science, Washington, DC VL - 332 IS - 6035 SN - 0036-8075, 0036-8075 KW - alteration KW - stony meteorites KW - isotopes KW - isotope ratios KW - parent bodies KW - C-13/C-12 KW - Tagish Lake Meteorite KW - carbonaceous chondrites KW - X-ray spectra KW - TEM data KW - stable isotopes KW - XANES spectra KW - meteorites KW - organic compounds KW - organic acids KW - mineral composition KW - D/H KW - hydrogen KW - carbon KW - amino acids KW - spectra KW - chondrites KW - geochemistry KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/890673184?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Origin+and+evolution+of+prebiotic+organic+matter+as+inferred+from+the+Tagish+Lake+Meteorite&rft.au=Herd%2C+Christopher+D+K%3BBlinova%2C+Alexandra%3BSimkus%2C+Danielle+N%3BHuang%2C+Yongsong%3BTarozo%2C+Rafael%3BAlexander%2C+Conel+M+O%27D%3BGyngard%2C+Frank%3BNittler%2C+Larry+R%3BCody%2C+George+D%3BFogel%2C+Marilyn+L%3BKebukawa%2C+Yoko%3BKilcoyne%2C+A+L+David%3BHilts%2C+Robert+W%3BSlater%2C+Greg+F%3BGlavin%2C+Daniel+P%3BDworkin%2C+Jason+P%3BCallahan%2C+Michael+P%3BElsila%2C+Jamie+E%3BDe+Gregorio%2C+Bradley+T%3BStroud%2C+Rhonda+M&rft.aulast=Herd&rft.aufirst=Christopher+D&rft.date=2011-06-01&rft.volume=332&rft.issue=6035&rft.spage=1304&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.1203290 L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 41 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - alteration; amino acids; C-13/C-12; carbon; carbonaceous chondrites; chondrites; D/H; geochemistry; hydrogen; isotope ratios; isotopes; meteorites; mineral composition; organic acids; organic compounds; parent bodies; spectra; stable isotopes; stony meteorites; Tagish Lake Meteorite; TEM data; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1126/science.1203290 ER - TY - JOUR T1 - EPOXI at Comet Hartley 2 AN - 890671283; 2011-076442 AB - Understanding how comets work--what drives their activity--is crucial to the use of comets in studying the early solar system. EPOXI (Extrasolar Planet Observation and Deep Impact Extended Investigation) flew past comet 103P/Hartley 2, one with an unusually small but very active nucleus, taking both images and spectra. Unlike large, relatively inactive nuclei, this nucleus is outgassing primarily because of CO (sub 2) , which drags chunks of ice out of the nucleus. It also shows substantial differences in the relative abundance of volatiles from various parts of the nucleus. JF - Science AU - A'Hearn, Michael F AU - Belton, Michael J S AU - Delamere, W Alan AU - Feaga, Lori M AU - Hampton, Donald AU - Kissel, Jochen AU - Klaasen, Kenneth P AU - McFadden, Lucy A AU - Meech, Karen J AU - Melosh, H Jay AU - Schultz, Peter H AU - Sunshine, Jessica M AU - Thomas, Peter C AU - Veverka, Joseph AU - Wellnitz, Dennis D AU - Yeomans, Donald K AU - Besse, Sebastien AU - Bodewits, Dennis AU - Bowling, Timothy J AU - Carcich, Brian T AU - Collins, Steven M AU - Farnham, Tony L AU - Groussin, Olivier AU - Hermalyn, Brendan AU - Kelley, Michael S AU - Li, Jian-Yang AU - Lindler, Don J AU - Lisse, Carey M AU - McLaughlin, Stephanie A AU - Merlin, Frederic AU - Protopapa, Silvia AU - Richardson, James E AU - Williams, Jade L Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 1396 EP - 1400 PB - American Association for the Advancement of Science, Washington, DC VL - 332 IS - 6036 SN - 0036-8075, 0036-8075 KW - water KW - imagery KW - density KW - carbon dioxide KW - volatiles KW - Hartley 2 Comet KW - gravity field KW - Extrasolar Planet Observation and Deep Impact Extended Investigation KW - topography KW - comets KW - surface features KW - EPOXI KW - spectra KW - nucleus KW - remote sensing KW - degassing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/890671283?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=EPOXI+at+Comet+Hartley+2&rft.au=A%27Hearn%2C+Michael+F%3BBelton%2C+Michael+J+S%3BDelamere%2C+W+Alan%3BFeaga%2C+Lori+M%3BHampton%2C+Donald%3BKissel%2C+Jochen%3BKlaasen%2C+Kenneth+P%3BMcFadden%2C+Lucy+A%3BMeech%2C+Karen+J%3BMelosh%2C+H+Jay%3BSchultz%2C+Peter+H%3BSunshine%2C+Jessica+M%3BThomas%2C+Peter+C%3BVeverka%2C+Joseph%3BWellnitz%2C+Dennis+D%3BYeomans%2C+Donald+K%3BBesse%2C+Sebastien%3BBodewits%2C+Dennis%3BBowling%2C+Timothy+J%3BCarcich%2C+Brian+T%3BCollins%2C+Steven+M%3BFarnham%2C+Tony+L%3BGroussin%2C+Olivier%3BHermalyn%2C+Brendan%3BKelley%2C+Michael+S%3BLi%2C+Jian-Yang%3BLindler%2C+Don+J%3BLisse%2C+Carey+M%3BMcLaughlin%2C+Stephanie+A%3BMerlin%2C+Frederic%3BProtopapa%2C+Silvia%3BRichardson%2C+James+E%3BWilliams%2C+Jade+L&rft.aulast=A%27Hearn&rft.aufirst=Michael&rft.date=2011-06-01&rft.volume=332&rft.issue=6036&rft.spage=1396&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.1204054 L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 37 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - carbon dioxide; comets; degassing; density; EPOXI; Extrasolar Planet Observation and Deep Impact Extended Investigation; gravity field; Hartley 2 Comet; imagery; nucleus; remote sensing; spectra; surface features; topography; volatiles; water DO - http://dx.doi.org/10.1126/science.1204054 ER - TY - JOUR T1 - Pre-earthquake signals; underlying physical processes AN - 890661688; 2011-076314 AB - Prior to large earthquakes the Earth sends out transient signals, sometimes strong, more often subtle and fleeting. These signals may consist of local magnetic field variations, electromagnetic emissions over a wide range of frequencies, a variety of atmospheric and ionospheric phenomena. Great uncertainty exists as to the nature of the processes that could produce such signals, both inside the Earth's crust and at the surface. The absence of a comprehensive physical mechanism has led to a patchwork of explanations, which are not internally consistent. The recognition that most crustal rocks contain dormant electronic charge carriers in the form of peroxy defects, O (sub 3) Si/ (super OO) \SiO (sub 3) , holds the key to a deeper understanding of these pre-earthquake signals from a solid state physics perspective. When rocks are stressed, peroxy links break, releasing electronic charge carriers, h (super .) , known as positive holes. The positive holes are highly mobile and can flow out of the stressed subvolume. The situation is similar to that in a battery. The h (super .) outflow is possible when the battery circuit closes. The h (super .) outflow constitutes an electric current, which generates magnetic field variations and low frequency EM emissions. When the positive holes arrive at the Earth's surface, they lead to ionization of air at the ground-air interface. Under certain conditions corona discharges occur, which cause RF emission. The upward expansion of ionized air may be the reason for perturbations in the ionosphere. Recombination of h (super .) charge carriers at the surface leads to a spectroscopically distinct, non-thermal IR emission. JF - Journal of Asian Earth Sciences AU - Freund, Friedemann A2 - Ouzounov, Dimitar A2 - Hattori, Katsumi A2 - Liu, J. Y. Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 383 EP - 400 PB - Elsevier, Oxford VL - 41 IS - 4-5 SN - 1367-9120, 1367-9120 KW - precursors KW - ionosphere KW - experimental studies KW - electrical conductivity KW - basement KW - electrical field KW - atmosphere KW - continental crust KW - magnetic field KW - signals KW - solid phase KW - laboratory studies KW - seismicity KW - earthquake prediction KW - metamorphic rocks KW - epicenters KW - geochemistry KW - earthquakes KW - uncertainty KW - crust KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/890661688?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Asian+Earth+Sciences&rft.atitle=Pre-earthquake+signals%3B+underlying+physical+processes&rft.au=Freund%2C+Friedemann&rft.aulast=Freund&rft.aufirst=Friedemann&rft.date=2011-06-01&rft.volume=41&rft.issue=4-5&rft.spage=383&rft.isbn=&rft.btitle=&rft.title=Journal+of+Asian+Earth+Sciences&rft.issn=13679120&rft_id=info:doi/10.1016%2Fj.jseaes.2010.03.009 L2 - http://www.sciencedirect.com/science/journal/13679120 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 150 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; basement; continental crust; crust; earthquake prediction; earthquakes; electrical conductivity; electrical field; epicenters; experimental studies; geochemistry; ionosphere; laboratory studies; magnetic field; metamorphic rocks; precursors; seismicity; signals; solid phase; uncertainty DO - http://dx.doi.org/10.1016/j.jseaes.2010.03.009 ER - TY - JOUR T1 - Hypersonic viscous flow over large roughness elements AN - 889395098; 14926745 AB - Viscous flow over discrete or distributed surface roughness has great implications for hypersonic flight due to aerothermodynamic considerations related to laminar-turbulent transition. Current prediction capability is greatly hampered by the limited knowledge base for such flows. To help fill that gap, numerical computations are used to investigate the intricate flow physics involved. An unstructured mesh, compressible Navier-Stokes code based on the space-time conservation element, solution element (CESE) method is used to perform time-accurate Navier-Stokes calculations for two roughness shapes investigated in wind tunnel experiments at NASA Langley Research Center. It was found through 2D parametric study that at subcritical Reynolds numbers, spontaneous absolute instability accompanying by sustained vortex shedding downstream of the roughness is likely to take place at subsonic free-stream conditions. On the other hand, convective instability may be the dominant mechanism for supersonic boundary layers. Three-dimensional calculations for both a rectangular and a cylindrical roughness element at post-shock Mach numbers of 4.1 and 6.5 also confirm that no self-sustained vortex generation from the top face of the roughness is observed, despite the presence of flow unsteadiness for the smaller post-shock Mach number case. JF - Theoretical and Computational Fluid Dynamics AU - Chang, Chau-Lyan AU - Choudhari, Meelan M AD - Computational AeroSciences Branch, NASA Langley Research Center, Hampton, VA, 23681, USA Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 85 EP - 104 PB - Springer-Verlag, Tiergartenstrasse 17 Heidelberg 69121 Germany VL - 25 IS - 1-4 SN - 0935-4964, 0935-4964 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Prediction KW - Hydrodynamics KW - Reynolds Number KW - Vortex shedding KW - Wind tunnels KW - Downstream KW - Reynolds number KW - Wind KW - Tunnels KW - Shape KW - Viscous Flow KW - Surface roughness KW - Boundary layers KW - Fluid dynamics KW - Conservation KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General KW - Q2 09183:Physics and chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/889395098?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Theoretical+and+Computational+Fluid+Dynamics&rft.atitle=Hypersonic+viscous+flow+over+large+roughness+elements&rft.au=Chang%2C+Chau-Lyan%3BChoudhari%2C+Meelan+M&rft.aulast=Chang&rft.aufirst=Chau-Lyan&rft.date=2011-06-01&rft.volume=25&rft.issue=1-4&rft.spage=85&rft.isbn=&rft.btitle=&rft.title=Theoretical+and+Computational+Fluid+Dynamics&rft.issn=09354964&rft_id=info:doi/10.1007%2Fs00162-010-0191-9 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-08-01 N1 - Last updated - 2016-02-04 N1 - SubjectsTermNotLitGenreText - Surface roughness; Boundary layers; Wind tunnels; Fluid dynamics; Vortex shedding; Reynolds number; Prediction; Shape; Hydrodynamics; Viscous Flow; Reynolds Number; Conservation; Downstream; Tunnels; Wind DO - http://dx.doi.org/10.1007/s00162-010-0191-9 ER - TY - JOUR T1 - Spatially developing secondary instabilities in compressible swept airfoil boundary layers AN - 889392769; 14926744 AB - Two-dimensional eigenvalue analysis is used on a massive scale to study the spatial instabilities of compressible shear flows with two inhomogeneous directions. The main focus of the study is crossflow dominated swept-wing boundary layers although the methodology can also be applied to study other types of flows, such as the attachment-line flow. Certain unique aspects of formulating a spatial, two-dimensional eigenvalue problem for the secondary instability of finite amplitude crossflow vortices are discussed, namely, fixing the spatial growth direction unambiguously through a non-orthogonal formulation of the linearized disturbance equations. A primary test case used for parameter study corresponds to Numerical results are presented for the low-speed, NLF-0415(b) airfoil configuration as tested in the ASU Unsteady Wind Tunnel, wherein a spanwise periodic array of roughness elements was placed near the leading edge in order to excite stationary crossflow modes with a specified fundamental wavelength. The two classes of flow conditions selected for this analysis include those for which the roughness array spacing corresponds to either the naturally dominant crossflow wavelength, or a subcritical wavelength that serves to reduce the growth of the naturally excited dominant crossflow modes. Numerical predictions are compared with the measured database, both as indirect validation for the spatial instability analysis and to provide a basis for comparison with a higher Reynolds number, supersonic swept-wing configuration. Application of the eigenvalue analysis to the supersonic configuration reveals that a broad spectrum of stationary crossflow modes can sustain sufficiently strong secondary instabilities as to potentially cause transition over this configuration. In particular, the control mode itself, if initiated with too large an amplitude, may lead to an earlier transition. JF - Theoretical and Computational Fluid Dynamics AU - Li, Fei AU - Choudhari, Meelan M AD - NASA Langley Research Center, Hampton, VA, 23681, USA, fei.li@nasa.gov Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 65 EP - 84 PB - Springer-Verlag, Tiergartenstrasse 17 Heidelberg 69121 Germany VL - 25 IS - 1-4 SN - 0935-4964, 0935-4964 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Testing Procedures KW - Prediction KW - Shear flow KW - Vortices KW - Mathematical models KW - Hydrodynamics KW - Boundary Layers KW - Tunnels KW - Wavelengths KW - Databases KW - Growth KW - Surface roughness KW - Boundary layers KW - Wind tunnels KW - Fluid dynamics KW - Reynolds number KW - Wind KW - SW 0810:General KW - Q2 09183:Physics and chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/889392769?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Theoretical+and+Computational+Fluid+Dynamics&rft.atitle=Spatially+developing+secondary+instabilities+in+compressible+swept+airfoil+boundary+layers&rft.au=Li%2C+Fei%3BChoudhari%2C+Meelan+M&rft.aulast=Li&rft.aufirst=Fei&rft.date=2011-06-01&rft.volume=25&rft.issue=1-4&rft.spage=65&rft.isbn=&rft.btitle=&rft.title=Theoretical+and+Computational+Fluid+Dynamics&rft.issn=09354964&rft_id=info:doi/10.1007%2Fs00162-010-0190-x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-02-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Shear flow; Vortices; Growth; Mathematical models; Surface roughness; Boundary layers; Fluid dynamics; Wind tunnels; Reynolds number; Prediction; Testing Procedures; Databases; Hydrodynamics; Boundary Layers; Tunnels; Wind; Wavelengths DO - http://dx.doi.org/10.1007/s00162-010-0190-x ER - TY - JOUR T1 - Evidence for aqueous activity on comet 81P/Wild 2 from sulfide mineral assemblages in Stardust samples and CI chondrites AN - 881454003; 2011-064485 AB - The discovery of nickel-, copper-, and zinc-bearing iron sulfides from comet 81P/Wild 2 (Wild 2) represents the strongest evidence, in the Stardust collection, of grains that formed in an aqueous environment. We investigated three microtomed TEM sections which contain crystalline sulfide assemblages from Wild 2 and twelve thin sections of the hydrothermally altered CI chondrite Orgueil. Detailed structural and compositional characterizations of the sulfide grains from both collections reveal striking similarities. The Stardust samples include a cubanite (CuFe (sub 2) S (sub 3) ) grain, a pyrrhotite [(Fe,Ni) (sub 1-x) S]/pentlandite [(Fe,Ni) (sub 9) S (sub 8) ] assemblage, and a pyrrhotite/sphalerite [(Fe,Zn)S] assemblage. Similarly, the CI-chondrite sulfides include individual cubanite and pyrrhotite grains, cubanite/pyrrhotite assemblages, pyrrhotite/pentlandite assemblages, as well as possible sphalerite inclusions within pyrrhotite grains. The cubanite is the low temperature orthorhombic form, which constrains temperature to a maximum of 210 degrees C. The Stardust and Orgueil pyrrhotites are the 4C monoclinic polytype, which is not stable above approximately 250 degrees C. The combinations of cubanite and pyrrhotite, as well as pyrrhotite and pentlandite signify even lower temperatures. The crystal structures, compositions, and petrographic relationships of these sulfides constrain formation and alteration conditions. Taken together, these constraints attest to low-temperature hydrothermal processing. Our analyses of these minerals provide constraints on large scale issues such as: heat sources in the comet-forming region; aqueous activity on cometary bodies; and the extent and mechanisms of radial mixing of material in the early nebula. The sulfides in the Wild 2 collection are most likely the products of low-temperature aqueous alteration. They provide evidence of radial mixing of material (e.g. cubanite, troilite) from the inner solar system to the comet-forming region and possible secondary aqueous processing on the cometary body. JF - Geochimica et Cosmochimica Acta AU - Berger, Eve L AU - Zega, Thomas J AU - Keller, Lindsay P AU - Lauretta, Dante S Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 3501 EP - 3513 PB - Elsevier, New York, NY VL - 75 IS - 12 SN - 0016-7037, 0016-7037 KW - solar system KW - CI chondrites KW - stony meteorites KW - Orgueil Meteorite KW - Stardust Mission KW - pentlandite KW - sphalerite KW - cosmochemistry KW - carbonaceous chondrites KW - metasomatism KW - TEM data KW - electron probe data KW - aqueous alteration KW - meteorites KW - comets KW - hydrothermal alteration KW - mineral assemblages KW - crystal chemistry KW - chondrites KW - chemical composition KW - sulfides KW - pyrrhotite KW - geochemistry KW - 05B:Petrology of meteorites and tektites KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881454003?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Evidence+for+aqueous+activity+on+comet+81P%2FWild+2+from+sulfide+mineral+assemblages+in+Stardust+samples+and+CI+chondrites&rft.au=Berger%2C+Eve+L%3BZega%2C+Thomas+J%3BKeller%2C+Lindsay+P%3BLauretta%2C+Dante+S&rft.aulast=Berger&rft.aufirst=Eve&rft.date=2011-06-01&rft.volume=75&rft.issue=12&rft.spage=3501&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2011.03.026 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 91 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aqueous alteration; carbonaceous chondrites; chemical composition; chondrites; CI chondrites; comets; cosmochemistry; crystal chemistry; electron probe data; geochemistry; hydrothermal alteration; metasomatism; meteorites; mineral assemblages; Orgueil Meteorite; pentlandite; pyrrhotite; solar system; sphalerite; Stardust Mission; stony meteorites; sulfides; TEM data DO - http://dx.doi.org/10.1016/j.gca.2011.03.026 ER - TY - JOUR T1 - The sensitivity of African easterly waves to eastern tropical Atlantic sea-surface temperatures AN - 876232981; 15016136 AB - The results of two regional atmospheric model simulations are compared to assess the influence of the eastern tropical Atlantic sea-surface temperature maximum on local precipitation, transient easterly waves and the West African summer monsoon. Both model simulations were initialized with reanalysis 2 data (US National Center for Environmental Prediction and Department of Energy) on 15 May 2006 and extended through 6 October 2006, forced by synchronous reanalysis 2 lateral boundary conditions introduced four times daily. One simulation uses 2006 reanalysis 2 sea-surface temperatures, also updated four times daily, while the second simulation considers ocean forcing absent the sea-surface temperature maximum, achieved here by subtracting 3 degree K at every ocean grid point between 0 degree and 15 degree N during the entire simulation. The simulation with 2006 sea-surface temperature forcing produces a realistic distribution of June-September mean precipitation and realistic westward propagating swaths of maximum rainfall, based on validation against Tropical Rainfall Measuring Mission (TRMM) estimates. The simulation without the sea-surface temperature maximum produces only 57% of the control June-September total precipitation over the eastern tropical Atlantic and about 83% of the Sahel precipitation. The simulation with warmer ocean temperatures generates generally stronger circulation, which in turn enhances precipitation by increasing moisture convergence. Some local precipitation enhancement is also attributed to lower vertical thermal stability above the warm water. The study shows that the eastern tropical Atlantic sea-surface temperature maximum enhances the strength of transient easterly waves and broadens the spatial extent of associated precipitation. However, large-scale circulation and its interaction with the African continent, and not sea-surface temperatures, control the timing and trajectories of the waves. JF - Meteorology and Atmospheric Physics AU - Druyan, Leonard M AU - Fulakeza, Matthew AD - Center for Climate Systems Research, Columbia University and the NASA/Goddard Institute for Space Studies, 2880, Broadway, New York, NY, 10025, USA, Leonard.M.Druyan@nasa.gov Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 39 EP - 53 PB - Springer-Verlag, Sachsenplatz 4-6 Vienna A-1201 Austria VL - 113 IS - 1-2 SN - 0177-7971, 0177-7971 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Prediction KW - Rainfall KW - Atmospheric physics KW - African easterly waves KW - Data reanalysis KW - Environmental factors KW - Wave interactions KW - Convergence KW - Ocean-atmosphere system KW - Waves KW - Timing KW - Temperature effects KW - Marine KW - Summer monsoon KW - Local Precipitation KW - Temperature KW - Simulation KW - Atmospheric circulation KW - Precipitation KW - AS, Tropical Atlantic KW - Model Studies KW - Easterly waves KW - ASE, Africa KW - Numerical simulations KW - Oceans KW - Tropical environment KW - Africa KW - Tropical Rainfall Measuring Mission (TRMM) KW - Nitrogen isotopes KW - AQ 00001:Water Resources and Supplies KW - Q2 09242:Observations and measurements at sea KW - SW 5010:Network design KW - M2 556.12:Precipitation (556.12) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/876232981?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteorology+and+Atmospheric+Physics&rft.atitle=The+sensitivity+of+African+easterly+waves+to+eastern+tropical+Atlantic+sea-surface+temperatures&rft.au=Druyan%2C+Leonard+M%3BFulakeza%2C+Matthew&rft.aulast=Druyan&rft.aufirst=Leonard&rft.date=2011-06-01&rft.volume=113&rft.issue=1-2&rft.spage=39&rft.isbn=&rft.btitle=&rft.title=Meteorology+and+Atmospheric+Physics&rft.issn=01777971&rft_id=info:doi/10.1007%2Fs00703-011-0145-9 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-07-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Temperature effects; Easterly waves; Atmospheric physics; Tropical environment; Ocean-atmosphere system; Simulation; Nitrogen isotopes; Environmental factors; Wave interactions; Summer monsoon; Numerical simulations; Convergence; Tropical Rainfall Measuring Mission (TRMM); Atmospheric circulation; Precipitation; African easterly waves; Data reanalysis; Timing; Prediction; Local Precipitation; Rainfall; Oceans; Temperature; Waves; Model Studies; ASE, Africa; Africa; AS, Tropical Atlantic; Marine DO - http://dx.doi.org/10.1007/s00703-011-0145-9 ER - TY - JOUR T1 - Cosmoelements; extraterrestrial water AN - 875013693; 2011-055039 JF - Elements AU - Zolensky, Michael E Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 152 PB - Mineralogical Society of America and Mineralogical Society of Great Britain and Ireland and Mineralogical Association of Canada and Geochemical Society and Clay Minerals Society VL - 7 IS - 3 SN - 1811-5209, 1811-5209 KW - halides KW - ordinary chondrites KW - irradiation KW - stony meteorites KW - oxygen KW - isotopes KW - planetesimals KW - life origin KW - Murchison Meteorite KW - meteorites KW - ice KW - amino acids KW - inclusions KW - chlorides KW - cosmic rays KW - chondrites KW - Zag Meteorite KW - water KW - chirality KW - H chondrites KW - carbonaceous chondrites KW - halite KW - early solar system KW - aqueous alteration KW - organic compounds KW - organic acids KW - comets KW - Monahans Meteorite KW - hydrogen KW - fluid inclusions KW - CM chondrites KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/875013693?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Elements&rft.atitle=Cosmoelements%3B+extraterrestrial+water&rft.au=Zolensky%2C+Michael+E&rft.aulast=Zolensky&rft.aufirst=Michael&rft.date=2011-06-01&rft.volume=7&rft.issue=3&rft.spage=152&rft.isbn=&rft.btitle=&rft.title=Elements&rft.issn=18115209&rft_id=info:doi/ L2 - http://www.elementsmagazine.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2011-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - amino acids; aqueous alteration; carbonaceous chondrites; chirality; chlorides; chondrites; CM chondrites; comets; cosmic rays; early solar system; fluid inclusions; H chondrites; halides; halite; hydrogen; ice; inclusions; irradiation; isotopes; life origin; meteorites; Monahans Meteorite; Murchison Meteorite; ordinary chondrites; organic acids; organic compounds; oxygen; planetesimals; stony meteorites; water; Zag Meteorite ER - TY - JOUR T1 - Climate Change and Climate Modeling AN - 1712563478; PQ0001955751 AB - In long-established fields like fluid mechanics or quantum theory, the contents of introductory textbooks are mostly predictable: The basics are covered in more or less the same order, and while cutting-edge research occasionally gets a look-in (depending on the inclinations of the authors), the contents are far more frequently reworkings of previous textbooks than a synthesis of recent primary literature. In a field like climate science, however, where there is a much shorter history of textbook writing, much of the subject matter is extracted directly from papers published in the past 10 years. This makes the resulting textbooks far more varied and interesting. JF - EOS, Transactions, American Geophysical Union AU - Schmidt, Gavin AD - NASA Goddard Institute for Space Studies,New York, USA. Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 198 EP - 199 PB - Wiley Subscription Services, Inc., 1105 N Market St Wilmington DE 19801 VL - 92 IS - 23 SN - 0096-3941, 0096-3941 KW - Meteorological & Geoastrophysical Abstracts; Sustainability Science Abstracts KW - Fluid mechanics KW - Historical account KW - Climate models KW - Climate KW - Climate change KW - American Geophysical Union KW - M2 551.583:Variations (551.583) KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1712563478?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=EOS%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Climate+Change+and+Climate+Modeling&rft.au=Schmidt%2C+Gavin&rft.aulast=Schmidt&rft.aufirst=Gavin&rft.date=2011-06-01&rft.volume=92&rft.issue=23&rft.spage=198&rft.isbn=&rft.btitle=&rft.title=EOS%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/10.1029%2F2011EO230012 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-09-01 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Fluid mechanics; Climate models; Climate change; American Geophysical Union; Historical account; Climate DO - http://dx.doi.org/10.1029/2011EO230012 ER - TY - JOUR T1 - Earth as an extrasolar planet; Earth model validation using EPOXI Earth observations AN - 1641013175; 2015-000899 JF - Astrobiology AU - Robinson, Tyler D AU - Meadows, Victoria S AU - Crisp, David AU - Deming, Drake AU - A'Hearn, Michael F AU - Charbonneau, David AU - Livengood, Timothy A AU - Seager, Sara AU - Barry, Richard K AU - Hearty, Thomas AU - Hewagama, Tilak AU - Lisse, Carey M AU - McFadden, Lucy A AU - Wellnitz, Dennis D Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 393 EP - 408 PB - Mary Ann Liebert, Larchmont, NY VL - 11 IS - 5 SN - 1531-1074, 1531-1074 KW - clouds KW - near-infrared spectra KW - optical thickness KW - extrasolar planets KW - three-dimensional models KW - optical spectra KW - atmosphere KW - simulation KW - light curves KW - infrared spectra KW - terrestrial planets KW - models KW - spatial distribution KW - planets KW - photometry KW - temporal distribution KW - spectra KW - reflectance KW - remote sensing KW - EPOXI Mission KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1641013175?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrobiology&rft.atitle=Earth+as+an+extrasolar+planet%3B+Earth+model+validation+using+EPOXI+Earth+observations&rft.au=Robinson%2C+Tyler+D%3BMeadows%2C+Victoria+S%3BCrisp%2C+David%3BDeming%2C+Drake%3BA%27Hearn%2C+Michael+F%3BCharbonneau%2C+David%3BLivengood%2C+Timothy+A%3BSeager%2C+Sara%3BBarry%2C+Richard+K%3BHearty%2C+Thomas%3BHewagama%2C+Tilak%3BLisse%2C+Carey+M%3BMcFadden%2C+Lucy+A%3BWellnitz%2C+Dennis+D&rft.aulast=Robinson&rft.aufirst=Tyler&rft.date=2011-06-01&rft.volume=11&rft.issue=5&rft.spage=393&rft.isbn=&rft.btitle=&rft.title=Astrobiology&rft.issn=15311074&rft_id=info:doi/10.1089%2Fast.2011.0642 L2 - http://www.liebertpub.com/publication.aspx?pub_id=99 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 48 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2014-12-31 N1 - SubjectsTermNotLitGenreText - atmosphere; clouds; EPOXI Mission; extrasolar planets; infrared spectra; light curves; models; near-infrared spectra; optical spectra; optical thickness; photometry; planets; reflectance; remote sensing; simulation; spatial distribution; spectra; temporal distribution; terrestrial planets; three-dimensional models DO - http://dx.doi.org/10.1089/ast.2011.0642 ER - TY - JOUR T1 - Habitable zone limits for dry planets AN - 1641010605; 2015-000902 JF - Astrobiology AU - Abe, Yutaka AU - Abe-Ouchi, Ayako AU - Sleep, Norman H AU - Zahnle, Kevin J Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 443 EP - 460 PB - Mary Ann Liebert, Larchmont, NY VL - 11 IS - 5 SN - 1531-1074, 1531-1074 KW - water KW - liquid phase KW - general circulation models KW - obliquity of the ecliptic KW - numerical models KW - extrasolar planets KW - three-dimensional models KW - Venus KW - stability KW - atmosphere KW - water vapor KW - freezing KW - habitable zone KW - deserts KW - carbon dioxide KW - terrestrial planets KW - planets KW - runaway greenhouse effect KW - solar radiation KW - insolation KW - greenhouse effect KW - climate KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1641010605?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrobiology&rft.atitle=Habitable+zone+limits+for+dry+planets&rft.au=Abe%2C+Yutaka%3BAbe-Ouchi%2C+Ayako%3BSleep%2C+Norman+H%3BZahnle%2C+Kevin+J&rft.aulast=Abe&rft.aufirst=Yutaka&rft.date=2011-06-01&rft.volume=11&rft.issue=5&rft.spage=443&rft.isbn=&rft.btitle=&rft.title=Astrobiology&rft.issn=15311074&rft_id=info:doi/10.1089%2Fast.2010.0545 L2 - http://www.liebertpub.com/publication.aspx?pub_id=99 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 47 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2014-12-31 N1 - SubjectsTermNotLitGenreText - atmosphere; carbon dioxide; climate; deserts; extrasolar planets; freezing; general circulation models; greenhouse effect; habitable zone; insolation; liquid phase; numerical models; obliquity of the ecliptic; planets; runaway greenhouse effect; solar radiation; stability; terrestrial planets; three-dimensional models; Venus; water; water vapor DO - http://dx.doi.org/10.1089/ast.2010.0545 ER - TY - JOUR T1 - Using biogenic sulfur gases as remotely detectable biosignatures on anoxic planets AN - 1641010500; 2015-000901 JF - Astrobiology AU - Domagal-Goldman, Shawn D AU - Meadows, Victoria S AU - Claire, Mark W AU - Kasting, James F Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 419 EP - 441 PB - Mary Ann Liebert, Larchmont, NY VL - 11 IS - 5 SN - 1531-1074, 1531-1074 KW - radiative transfer model KW - aliphatic hydrocarbons KW - astrobiology KW - ethane KW - M dwarf KW - organic sulfur KW - methane KW - extrasolar planets KW - photochemistry KW - atmosphere KW - alkanes KW - biomarkers KW - gases KW - models KW - planets KW - habitat KW - organic compounds KW - biogenic processes KW - detection KW - stars KW - hydrocarbons KW - sulfur KW - anaerobic environment KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1641010500?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrobiology&rft.atitle=Using+biogenic+sulfur+gases+as+remotely+detectable+biosignatures+on+anoxic+planets&rft.au=Domagal-Goldman%2C+Shawn+D%3BMeadows%2C+Victoria+S%3BClaire%2C+Mark+W%3BKasting%2C+James+F&rft.aulast=Domagal-Goldman&rft.aufirst=Shawn&rft.date=2011-06-01&rft.volume=11&rft.issue=5&rft.spage=419&rft.isbn=&rft.btitle=&rft.title=Astrobiology&rft.issn=15311074&rft_id=info:doi/10.1089%2Fast.2010.0509 L2 - http://www.liebertpub.com/publication.aspx?pub_id=99 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 144 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2014-12-31 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; anaerobic environment; astrobiology; atmosphere; biogenic processes; biomarkers; detection; ethane; extrasolar planets; gases; habitat; hydrocarbons; M dwarf; methane; models; organic compounds; organic sulfur; photochemistry; planets; radiative transfer model; remote sensing; stars; sulfur DO - http://dx.doi.org/10.1089/ast.2010.0509 ER - TY - JOUR T1 - Prebiotic synthesis of methionine and other sulfur-containing organic compounds on the primitive Earth; a contemporary reassessment based on an unpublished 1958 Stanley Miller experiment AN - 1328505924; 2013-034530 AB - Original extracts from an unpublished 1958 experiment conducted by the late Stanley L. Miller were recently found and analyzed using modern state-of-the-art analytical methods. The extracts were produced by the action of an electric discharge on a mixture of methane (CH (sub 4) ), hydrogen sulfide (H (sub 2) S), ammonia (NH (sub 3) ), and carbon dioxide (CO (sub 2) ). Racemic methionine was formed in significant yields, together with other sulfur-bearing organic compounds. The formation of methionine and other compounds from a model prebiotic atmosphere that contained H (sub 2) S suggests that this type of synthesis is robust under reducing conditions, which may have existed either in the global primitive atmosphere or in localized volcanic environments on the early Earth. The presence of a wide array of sulfur-containing organic compounds produced by the decomposition of methionine and cysteine indicates that in addition to abiotic synthetic processes, degradation of organic compounds on the primordial Earth could have been important in diversifying the inventory of molecules of biochemical significance not readily formed from other abiotic reactions, or derived from extraterrestrial delivery. Copyright 2011 Springer Science+Business Media B.V. and 2010 The Author(s) JF - Origins of Life and Evolution of the Biosphere AU - Parker, Eric T AU - Cleaves, H James AU - Callahan, Michael P AU - Dworkin, Jason P AU - Glavin, Daniel P AU - Lazcano, Antonio AU - Bada, Jeffrey L Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 201 EP - 212 PB - Springer, Dordrecht VL - 41 IS - 3 SN - 0169-6149, 0169-6149 KW - experimental studies KW - methane KW - Precambrian KW - methionine KW - liquid chromatograms KW - aliphatic hydrocarbons KW - mass spectra KW - atmosphere KW - hydrogen sulfide KW - alkanes KW - life origin KW - carbon dioxide KW - laboratory studies KW - organic compounds KW - organic acids KW - chemical reactions KW - chromatograms KW - amino acids KW - hydrocarbons KW - sulfur KW - spectra KW - synthesis KW - ammonia compound KW - 08:General paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1328505924?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.atitle=Prebiotic+synthesis+of+methionine+and+other+sulfur-containing+organic+compounds+on+the+primitive+Earth%3B+a+contemporary+reassessment+based+on+an+unpublished+1958+Stanley+Miller+experiment&rft.au=Parker%2C+Eric+T%3BCleaves%2C+H+James%3BCallahan%2C+Michael+P%3BDworkin%2C+Jason+P%3BGlavin%2C+Daniel+P%3BLazcano%2C+Antonio%3BBada%2C+Jeffrey+L&rft.aulast=Parker&rft.aufirst=Eric&rft.date=2011-06-01&rft.volume=41&rft.issue=3&rft.spage=201&rft.isbn=&rft.btitle=&rft.title=Origins+of+Life+and+Evolution+of+the+Biosphere&rft.issn=01696149&rft_id=info:doi/10.1007%2Fs11084-010-9228-8 L2 - http://www.springerlink.com/content/1573-0875/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2013-01-01 N1 - Number of references - 41 N1 - Document feature - illus. N1 - SuppNotes - NSF Grant CHE-1004570 N1 - Last updated - 2013-04-19 N1 - CODEN - OGLFAU N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; amino acids; ammonia compound; atmosphere; carbon dioxide; chemical reactions; chromatograms; experimental studies; hydrocarbons; hydrogen sulfide; laboratory studies; life origin; liquid chromatograms; mass spectra; methane; methionine; organic acids; organic compounds; Precambrian; spectra; sulfur; synthesis DO - http://dx.doi.org/10.1007/s11084-010-9228-8 ER - TY - JOUR T1 - The combined use of CALIOP, MODIS and OMI aerosol and cloud products for calculating direct aerosol radiative effects AN - 1151915434; 2012-097574 AB - We describe a technique for combining CALIOP aerosol backscatter, MODIS spectral AOD (aerosol optical depth), and OMI AAOD (absorption aerosol optical depth) measurements for the purpose of estimating full spectral sets of aerosol radiative properties, and ultimately for calculating direct aerosol radiative effects. We will present first results using 1-month of collocated CALIOP V3, MODIS and OMI data collected in October 2007, as well as a test of our methodology using airborne observations in the ARCTAS field experiment. As a prerequisite for the application of our methodology to the actual satellite observations, we assessed the consistency between comparable measurement quantities from the different A-Train sensors. For eight months in 2007 and 2009, comparisons of the standard MODIS-Aqua AOD data to AOD calculated from CALIOP aerosol extinction profile data show differences in global, monthly mean, over-ocean AOD (532nm) between CALIOP and MODIS ranging between between 0.025 and 0.04 for CALIOP V3, with CALIOP generally biased low. Differences for CALIOP V2 are often smaller, but correlation with MODIS AOD is significantly lower. JF - Mineralogical Magazine AU - Redemann, Jens AU - Vaughan, M AU - Shinozuka, Y AU - Russell, P AU - Livingston, J AU - Remer, L AU - Anonymous Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 1701 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - clouds KW - optical properties KW - solar radiation KW - theoretical models KW - CALIOP KW - atmosphere KW - aerosols KW - geochemistry KW - OMI KW - MODIS KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1151915434?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=The+combined+use+of+CALIOP%2C+MODIS+and+OMI+aerosol+and+cloud+products+for+calculating+direct+aerosol+radiative+effects&rft.au=Redemann%2C+Jens%3BVaughan%2C+M%3BShinozuka%2C+Y%3BRussell%2C+P%3BLivingston%2C+J%3BRemer%2C+L%3BAnonymous&rft.aulast=Redemann&rft.aufirst=Jens&rft.date=2011-06-01&rft.volume=75&rft.issue=3&rft.spage=1701&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1685.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-11-15 N1 - SubjectsTermNotLitGenreText - aerosols; atmosphere; CALIOP; clouds; geochemistry; MODIS; OMI; optical properties; solar radiation; theoretical models ER - TY - JOUR T1 - How Jupiter's two-phase gas-driven migration shaped the inner solar system AN - 1151915416; 2012-097571 AB - Accretion simulations cannot adequately reproduce the terrestrial planets, in particular Mars' small mass [1]. Currently, the best solution to this problem assumes that the terrestrial building blocks were initially concentrated in a narrow annulus from 0.7-1 AU [2]. These initial conditions could have been sculpted by Jupiter's two-phase migration in the gaseous Solar Nebula: Jupiter first migrated inward due to standard type 2 torques, then back outward once Saturn grew and was trapped in 2:3 resonance [3]. If the turnaround point or "tack" occurred when Jupiter was at 1.5 AU then the inner disk of material would be truncated at 1 AU, forming a small Mars (Figure 1). In this scenario, the asteroid belt was first emptied and then re-filled by Jupiter: S-type asteroids (red in Figure 1) originated between 1-3 AU and C-types (blue) originated between the giant planets and beyond Neptune [4]. In the absence of migration, primitive C-type asteroids represent a plausible source for Earth's water [5]. In the context of the "grand tack" model [4], this same population may still deliver water to the growing Earth: for every C-type planetesimal injected into the asteroid belt, approximately 10 were scattered onto eccentric orbits that intersect the terrestrial planet-forming region. These scattered C-types can deliver several oceans of water to the growing Earth. JF - Mineralogical Magazine AU - Raymond, Sean N AU - Walsh, Kevin J AU - Morbidelli, Alessandro AU - O'Brien, David P AU - Mandell, Avi M AU - Anonymous Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 1699 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - water KW - solar nebula KW - solar system KW - planets KW - two-phase models KW - gaseous phase KW - asteroids KW - Jupiter KW - terrestrial comparison KW - outer planets KW - giant planets KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1151915416?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=How+Jupiter%27s+two-phase+gas-driven+migration+shaped+the+inner+solar+system&rft.au=Raymond%2C+Sean+N%3BWalsh%2C+Kevin+J%3BMorbidelli%2C+Alessandro%3BO%27Brien%2C+David+P%3BMandell%2C+Avi+M%3BAnonymous&rft.aulast=Raymond&rft.aufirst=Sean&rft.date=2011-06-01&rft.volume=75&rft.issue=3&rft.spage=1699&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1685.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - Document feature - illus. N1 - Last updated - 2012-11-15 N1 - SubjectsTermNotLitGenreText - asteroids; gaseous phase; giant planets; Jupiter; outer planets; planets; solar nebula; solar system; terrestrial comparison; two-phase models; water ER - TY - JOUR T1 - Historical perspective of passive aerosol remote sensing; bridging the years AN - 1151915261; 2012-097589 AB - For nearly three decades space sensors designed for other purposes were used to observe, quantify and characterize atmospheric aerosols. During this "heritage period", algorithm development focused on three primary methods. (1) Occultation methods that measure the extinction of solar radiation and provide vertical profiles of aerosol extinction through the stratosphere. (2) Dark target methods that use the brightening of the scene to infer aerosol loading. (3) UV methods that use the deviation of the observed signal from expected Rayleigh scattering values. Besides these three main methods applied to the SAM/SAGE, AVHRR and TOMS measurements, respectively, to produce long aerosol time series, other methods have been developed to make use of multiangle, polarization and geosynchronous capabilities. These satellite aerosol products applied to data collected in the 1980s and 1990s made way for the era of the modern sensors that began with the launch of Terra in late 1999. The modern sensors: MODIS, MISR, OMI etc., were designed with aerosol in mind, but specifically with the goal of providing information that would help reduce uncertainties in estimates of climate forcing. The quantitative information they provided was unexpectedly also used in other applications including air quality forecasting, public health studies, and long-range transport of dust and pollutants. Thus, the modern satellite data helps to bridge the scales, as well as the years. JF - Mineralogical Magazine AU - Remer, Lorraine A AU - Torres, Omar AU - Anonymous Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 1708 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - passive methods KW - AVHRR KW - monitoring KW - pollution KW - atmosphere KW - aerosols KW - remote sensing KW - MODIS KW - air pollution KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1151915261?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Historical+perspective+of+passive+aerosol+remote+sensing%3B+bridging+the+years&rft.au=Remer%2C+Lorraine+A%3BTorres%2C+Omar%3BAnonymous&rft.aulast=Remer&rft.aufirst=Lorraine&rft.date=2011-06-01&rft.volume=75&rft.issue=3&rft.spage=1708&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1685.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-11-15 N1 - SubjectsTermNotLitGenreText - aerosols; air pollution; atmosphere; AVHRR; MODIS; monitoring; passive methods; pollution; remote sensing ER - TY - JOUR T1 - Clouds and the Faint Young Sun Paradox AN - 1151910715; 2012-100133 AB - We investigate the role which clouds could play in resolving the Faint Young Sun Paradox (FYSP). Lower solar luminosity in the past means that less energy was absorbed on Earth (a forcing of -50Wm (super -2) during the late Archean), but geological evidence points to the Earth having been at least as warm as it is today, with only very occasional glaciations. We perform radiative calculations on a single global mean atmospheric column. We select a nominal set of three layered, randomly overlapping clouds, which are both consistent with observed cloud climatologies and reproduced the observed global mean energy budget of Earth. By varying the fraction, thickness, height and particle size of these clouds we conduct a wide exploration of how changed clouds could affect climate, thus constraining how clouds could contribute to resolving the FYSP. Low clouds reflect sunlight but have little greenhouse effect. Removing them entirely gives a forcing of +25Wm (super -2) whilst more modest reduction in their efficacy gives a forcing of +10 to +15Wm (super -2) . For high clouds, the greenhouse effect dominates. It is possible to generate +50Wm (super -2) forcing from enhancing these, but this requires making them 3.5 times thicker and 14K colder than the standard high cloud in our nominal set and expanding their coverage to 100% of the sky. Such changes are not credible. More plausible changes would generate no more than +15Wm (super -2) forcing. Thus neither fewer low clouds nor more high clouds an provide enough forcing to resolve the FYSP. Decreased surface albedo can contribute no more than +5Wm (super -2) forcing. Some models which have been applied to the FYSP do not include clouds at all. These overestimate the forcing due to increased CO (sub 2) by 20 to 25% when pCO (sub 2) is 0.01 to 0.1 bar [1, 2]. JF - Mineralogical Magazine AU - Goldblatt, Colin AU - Zahnle, Kevin J AU - Anonymous Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 927 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - clouds KW - albedo KW - Precambrian KW - numerical models KW - paleoatmosphere KW - solar forcing KW - Faint Young Sun Paradox KW - paleoclimatology KW - concepts KW - Phanerozoic KW - luminescence KW - paleotemperature KW - solar radiation KW - theoretical models KW - climate forcing KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1151910715?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Clouds+and+the+Faint+Young+Sun+Paradox&rft.au=Goldblatt%2C+Colin%3BZahnle%2C+Kevin+J%3BAnonymous&rft.aulast=Goldblatt&rft.aufirst=Colin&rft.date=2011-06-01&rft.volume=75&rft.issue=3&rft.spage=927&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/878.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Number of references - 2 N1 - Last updated - 2012-11-15 N1 - SubjectsTermNotLitGenreText - albedo; climate forcing; clouds; concepts; Faint Young Sun Paradox; luminescence; numerical models; paleoatmosphere; paleoclimatology; paleotemperature; Phanerozoic; Precambrian; solar forcing; solar radiation; theoretical models ER - TY - JOUR T1 - Redox and early Earth's sulfur cycle AN - 1112676299; 2012-087179 AB - It has been a little over 10 years since it was recognized that mass-independent sulfur isotope signatures in the Archean and earliest Paleoproterozoic rock record provided information about the redox state of Earth's surface environments. As the dataset has grown, new features of the record have emerged, including the recognition of a relatively clear change in the magnitude of Delta (super 33) S that defines the range of variation between the Eo-Paleoarchean, the Mesoarchean, and the Neoarchean [1], a change in the symmetry of this signal about the origin for this same interval [(maximum positive Delta (super 33) S)/(maximum negative Delta (super 33) S)] [2], and changes in the relationship between Delta (super 36) S and Delta (super 33) S that are correlated with the age and stratigraphy of the measured samples (e.g., [3,4]). It also appears that the the mean value of Delta (super 33) S (and Delta (super 36) S) for different parts of the Archean varies, which bears on the issue of whether the available samples can be used to close the sulfur cycle. Our work over the past few years has focused on understanding these and other aspects of the sulfur cycle, and also on connections between the implied causes of MIF-S and the sources/sinks in the sulfur cycle, and their collective implications for the evolution of the redox state of the Archean and Paleoproterozoic atmosphere and oceans. The picture that emerges appears to call for a change in the cycling of sulfur extending from the Eoarchean, through the Paleo- and Mesoarchean, and into the Neoarchean. The record implies significant changes in structure of the sulfur cycle pathways - specifically related to the role of those for reduction and reoxidation of sulfur compounds. These data, sulfur cycle models, and the basis for these assertions will be discussed. [1] Ohmoto, et al., (2006) Nature, 442, 908-911. [2] Halevy, et al., Science, 329, 204-207. [3] Kaufman, et al., (2007) Science, 317, 1900-1903. [4] Farquhar, et al., (2007) Nature, 449, 706-U5. JF - Mineralogical Magazine AU - Farquhar, James AU - Claire, Mark AU - Domagal-Goldman, Shawn AU - Harms, Brian AU - Poulton, Simon W AU - Zerkle, Aubrey L AU - Anonymous Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 831 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - Precambrian KW - isotopes KW - paleoatmosphere KW - S-33 KW - paleo-oceanography KW - stable isotopes KW - S-36 KW - geochemical cycle KW - sulfur cycle KW - sulfur KW - Archean KW - geochemistry KW - Eh KW - 12:Stratigraphy KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1112676299?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Redox+and+early+Earth%27s+sulfur+cycle&rft.au=Farquhar%2C+James%3BClaire%2C+Mark%3BDomagal-Goldman%2C+Shawn%3BHarms%2C+Brian%3BPoulton%2C+Simon+W%3BZerkle%2C+Aubrey+L%3BAnonymous&rft.aulast=Farquhar&rft.aufirst=James&rft.date=2011-06-01&rft.volume=75&rft.issue=3&rft.spage=831&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/825.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Number of references - 4 N1 - Last updated - 2012-10-18 N1 - SubjectsTermNotLitGenreText - Archean; Eh; geochemical cycle; geochemistry; isotopes; paleo-oceanography; paleoatmosphere; Precambrian; S-33; S-36; stable isotopes; sulfur; sulfur cycle ER - TY - JOUR T1 - Paired bedrock and boulder (super 10) Be concentrations resulting from early Holocene ice retreat near Jakobshavn Isfjord, western Greenland AN - 1112672198; 2012-087087 AB - We measured in situ cosmogenic (super 10) Be in 16 bedrock and 14 boulder samples collected along a 40-km transect outside of and normal to the modern ice margin near Sikuijuitsoq Fjord in central-west Greenland (69 degrees N). We use these data to understand better the efficiency of glacial erosion and to infer the timing, pattern, and rate of ice loss after the last glaciation. In general, the ages of paired bedrock and boulder samples are in close agreement (r (super 2) =0.72). Eleven of the fourteen paired bedrock and boulder samples are indistinguishable at 1sigma ; this concordance indicates that subglacial erosion rates are sufficient to remove most or all (super 10) Be accumulated during previous periods of exposure, and that few, if any, nuclides are inherited from pre-Holocene interglaciations. The new data agree well with previously-published landscape chronologies from this area, and suggest that two chronologically-distinct land surfaces exist: one outside the Fjord Stade moraine complex ( approximately 10.3+ or -0.4 ka; n=7) and another inside ( approximately 8.0+ or -0.7 ka; n=21). Six (super 10) Be ages from directly outside the historic (Little Ice Age) moraine show that the ice margin first reached its present-day position approximately 7.6+ or -0.4 ka. Early Holocene ice margin retreat rates after the deposition of the Fjord Stade moraine complex were approximately 100-110 m yr (super -1) . Sikuijuitsoq Fjord is a tributary to the much larger Jakobshavn Isfjord and the deglaciation chronologies of these two fjords are similar. This synchronicity suggests that the ice stream in Jakobshavn Isfjord set the timing and pace of early Holocene deglaciation of the surrounding ice margin. Abstract Copyright (2011) Elsevier, B.V. JF - Quaternary Science Reviews AU - Corbett, Lee B AU - Young, Nicolas E AU - Bierman, Paul R AU - Briner, Jason P AU - Neumann, Thomas A AU - Rood, Dylan H AU - Graly, Joseph A Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 1739 EP - 1749 PB - Elsevier VL - 30 IS - 13-14 SN - 0277-3791, 0277-3791 KW - Sikuijuitsoq Fjord KW - lower Holocene KW - isotopes KW - erosion KW - Greenland ice sheet KW - West Greenland KW - cosmogenic elements KW - erosion rates KW - paleoclimatology KW - Holocene KW - deglaciation KW - Cenozoic KW - Jakobshavn Isfjord KW - Greenland KW - radioactive isotopes KW - glacial environment KW - sediments KW - absolute age KW - bedrock KW - alkaline earth metals KW - boulders KW - Quaternary KW - Be-10 KW - clastic sediments KW - Arctic region KW - ice sheets KW - paleoenvironment KW - metals KW - glacial geology KW - beryllium KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1112672198?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Quaternary+Science+Reviews&rft.atitle=Paired+bedrock+and+boulder+%28super+10%29+Be+concentrations+resulting+from+early+Holocene+ice+retreat+near+Jakobshavn+Isfjord%2C+western+Greenland&rft.au=Corbett%2C+Lee+B%3BYoung%2C+Nicolas+E%3BBierman%2C+Paul+R%3BBriner%2C+Jason+P%3BNeumann%2C+Thomas+A%3BRood%2C+Dylan+H%3BGraly%2C+Joseph+A&rft.aulast=Corbett&rft.aufirst=Lee&rft.date=2011-06-01&rft.volume=30&rft.issue=13-14&rft.spage=1739&rft.isbn=&rft.btitle=&rft.title=Quaternary+Science+Reviews&rft.issn=02773791&rft_id=info:doi/10.1016%2Fj.quascirev.2011.04.001 L2 - http://www.sciencedirect.com/science/journal/02773791 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 65 N1 - Document feature - illus. incl. 1 table, sketch map N1 - SuppNotes - NSF grants ARC-0713956 and ARC-0752848 N1 - Last updated - 2012-10-18 N1 - SubjectsTermNotLitGenreText - absolute age; alkaline earth metals; Arctic region; Be-10; bedrock; beryllium; boulders; Cenozoic; clastic sediments; cosmogenic elements; deglaciation; erosion; erosion rates; glacial environment; glacial geology; Greenland; Greenland ice sheet; Holocene; ice sheets; isotopes; Jakobshavn Isfjord; lower Holocene; metals; paleoclimatology; paleoenvironment; Quaternary; radioactive isotopes; sediments; Sikuijuitsoq Fjord; West Greenland DO - http://dx.doi.org/10.1016/j.quascirev.2011.04.001 ER - TY - JOUR T1 - Young poorly crystalline graphite in the >3.8-Gyr-old Nuvvuagittuq banded iron formation AN - 1015461860; 2012-047357 JF - Nature Geoscience AU - Papineau, D AU - De Gregorio, B T AU - Cody, G D AU - O'Neil, J AU - Steele, A AU - Stroud, R M AU - Fogel, M L Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 376 EP - 379 PB - Nature Publishing Group, London VL - 4 IS - 6 SN - 1752-0894, 1752-0894 KW - Nuvvuagittuq Formation KW - isotopes KW - banded iron formations KW - Quebec KW - metamorphic belts KW - West Greenland KW - Paleoarchean KW - stable isotopes KW - Greenland KW - sedimentary rocks KW - northern Quebec KW - carbon KW - metamorphic rocks KW - metasedimentary rocks KW - Archean KW - chemically precipitated rocks KW - Precambrian KW - isotope ratios KW - Arctic region KW - C-13/C-12 KW - correlation KW - native elements KW - supracrustals KW - metamorphism KW - graphite KW - iron formations KW - Canada KW - Eastern Canada KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1015461860?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+Geoscience&rft.atitle=Young+poorly+crystalline+graphite+in+the+%26gt%3B3.8-Gyr-old+Nuvvuagittuq+banded+iron+formation&rft.au=Papineau%2C+D%3BDe+Gregorio%2C+B+T%3BCody%2C+G+D%3BO%27Neil%2C+J%3BSteele%2C+A%3BStroud%2C+R+M%3BFogel%2C+M+L&rft.aulast=Papineau&rft.aufirst=D&rft.date=2011-06-01&rft.volume=4&rft.issue=6&rft.spage=376&rft.isbn=&rft.btitle=&rft.title=Nature+Geoscience&rft.issn=17520894&rft_id=info:doi/10.1038%2Fngeo1155 L2 - http://www.nature.com/ngeo/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 30 N1 - Document feature - illus. N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Archean; Arctic region; banded iron formations; C-13/C-12; Canada; carbon; chemically precipitated rocks; correlation; Eastern Canada; graphite; Greenland; iron formations; isotope ratios; isotopes; metamorphic belts; metamorphic rocks; metamorphism; metasedimentary rocks; native elements; northern Quebec; Nuvvuagittuq Formation; Paleoarchean; Precambrian; Quebec; sedimentary rocks; stable isotopes; supracrustals; West Greenland DO - http://dx.doi.org/10.1038/ngeo1155 ER - TY - JOUR T1 - Accelerating ice loss from the fastest Greenland and Antarctic glaciers AN - 912919882; 16006525 AB - Progressive increase in ice discharge from fastest Greenland/Antarctic glaciers Key imortance of floating ice shelves to future behavior of many similar glacier Likelihood of continued, very large increases in ice discharge Ice discharge from the fastest glaciers draining the Greenland and Antarctic ice sheets - Jakobshavn Isbrae (JI) and Pine Island Glacier (PIG)- continues to increase, and is now more than double that needed to balance snowfall in their catchment basins. Velocity increase probably resulted from decreased buttressing from thinning (and, for JI, breakup) of their floating ice tongues, and from reduced basal drag as grounding lines on both glaciers retreat. JI flows directly into the ocean as it becomes afloat, and here creep rates are proportional to the cube of bed depth. Rapid thinning of the PIG ice shelf increases the likelihood of its breakup, and subsequent rapid increase in discharge velocity. Results from a simple model indicate that JI velocities should almost double to >20 km a-1 by 2015, with velocities on PIG increasing to >10 km a-1 after breakup of its ice shelf. These high velocities would probably be sustained over many decades as the glaciers retreat within their long, very deep troughs. Resulting sea-level rise would average about 1.5 mm a-1. JF - Geophysical Research Letters AU - Thomas, R AU - Frederick, E AU - Li, J AU - Krabill, W AU - Manizade, S AU - Paden, J AU - Sonntag, J AU - Swift, R AU - Yungel, J AD - SIGMA Space Inc., NASA Wallops Flight Facility, Wallops Island, Virginia, USA Y1 - 2011/05/24/ PY - 2011 DA - 2011 May 24 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 38 IS - 10 SN - 0094-8276, 0094-8276 KW - Oceanic Abstracts; Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - 0720 Cryosphere: Glaciers KW - 0726 Cryosphere: Ice sheets KW - 0728 Cryosphere: Ice shelves KW - 0758 Cryosphere: Remote sensing KW - ice-sheet discharge KW - Catchment area KW - Floating Ice KW - Glaciers KW - Sea level rise KW - Antarctic KW - Creep KW - Antarctica, Ellsworth Land, Pine Island Glacier KW - Catchment basins KW - Continental shelves KW - Ice Breakup KW - Ablation KW - AN, Greenland KW - Marine KW - ANW, Greenland, Vestgroenland, Jakobshavns Isbrae KW - Floating ice KW - Antarctic glaciers KW - Velocity KW - Model Studies KW - Drag KW - Antarctic ice sheet KW - Sea ice KW - Catchment Basins KW - Oceans KW - Glaciation KW - Glacier retreat KW - Troughs KW - Sea level changes KW - AQ 00001:Water Resources and Supplies KW - Q2 09263:Topography and morphology KW - M2 551.326:Floating Ice (551.326) KW - SW 0820:Snow, ice and frost KW - O 2020:Hydrodynamics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/912919882?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Accelerating+ice+loss+from+the+fastest+Greenland+and+Antarctic+glaciers&rft.au=Thomas%2C+R%3BFrederick%2C+E%3BLi%2C+J%3BKrabill%2C+W%3BManizade%2C+S%3BPaden%2C+J%3BSonntag%2C+J%3BSwift%2C+R%3BYungel%2C+J&rft.aulast=Thomas&rft.aufirst=R&rft.date=2011-05-24&rft.volume=38&rft.issue=10&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2011GL047304 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-12-01 N1 - Number of references - 21 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Catchment area; Creep; Sea ice; Floating ice; Continental shelves; Glaciers; Glaciation; Ablation; Sea level changes; Antarctic ice sheet; Catchment basins; Antarctic glaciers; Sea level rise; Glacier retreat; Troughs; Drag; Catchment Basins; Floating Ice; Oceans; Ice Breakup; Velocity; Antarctic; Model Studies; Antarctica, Ellsworth Land, Pine Island Glacier; ANW, Greenland, Vestgroenland, Jakobshavns Isbrae; AN, Greenland; Marine DO - http://dx.doi.org/10.1029/2011GL047304 ER - TY - CPAPER T1 - Molecular Evolution before LUCA: Temporal Correlation of Aminoacyl-tRNA Synthetase Paralog Ancestors T2 - 111th General Meeting of the American Society for Microbiology (ASM 2011) AN - 1312900942; 6036673 JF - 111th General Meeting of the American Society for Microbiology (ASM 2011) AU - Fournier, G Y1 - 2011/05/21/ PY - 2011 DA - 2011 May 21 KW - molecular evolution KW - Aminoacyl-tRNA ligase UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312900942?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=111th+General+Meeting+of+the+American+Society+for+Microbiology+%28ASM+2011%29&rft.atitle=Molecular+Evolution+before+LUCA%3A+Temporal+Correlation+of+Aminoacyl-tRNA+Synthetase+Paralog+Ancestors&rft.au=Fournier%2C+G&rft.aulast=Fournier&rft.aufirst=G&rft.date=2011-05-21&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=111th+General+Meeting+of+the+American+Society+for+Microbiology+%28ASM+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.abstractsonline.com/plan/Browse.aspx LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - Collisional excavation of Asteroid (596) Scheila AN - 1542638610; 2014-044677 AB - We observed asteroid (596) Scheila and its ejecta cloud using the Swift UV-optical telescope. We obtained photometry of the nucleus and the ejecta, and for the first time measured the asteroid's reflection spectrum between 290 and 500 nm. Our measurements indicate significant reddening at UV wavelengths (13% per 10 (super 3) Aa) and a possible broad, unidentified absorption feature around 380 nm. Our measurements indicate that the outburst has not permanently increased the asteroid's brightness. We did not detect any of the gases that are typically associated with either hypervolatile activity thought responsible for cometary outbursts (CO (super +) , CO (sub 2) (super +) ), or for any volatiles excavated with the dust (OH, NH, CN, C (sub 2) , C (sub 3) ). We estimate that 6 X 10 (super 8) kg of dust was released with a high ejection velocity of 57 m s (super -1) (assuming 1 mu m sized particles). While the asteroid is red in color and the ejecta have the same color as the Sun, we suggest that the dust does not contain any ice. Based on our observations, we conclude that (596) Scheila was most likely impacted by another main belt asteroid less than 100 m in diameter. Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The = Astrophysical Journal. Letters AU - Bodewits, D AU - Kelley, M S AU - Li, J Y AU - Landsman, W B AU - Besse, S AU - A'Hearn, M F Y1 - 2011/05/20/ PY - 2011 DA - 2011 May 20 EP - Paper no. L3 PB - IOP Publishing, Bristol VL - 733 IS - 1 SN - 2041-8205, 2041-8205 KW - T-type asteroids KW - imagery KW - asteroids KW - telescope methods KW - optical spectra KW - main belt asteroids KW - Swift Ultraviolet/Optical Telescope KW - impacts KW - ejecta KW - mass KW - brightness KW - volatiles KW - photometry KW - comets KW - dynamics KW - ultraviolet spectra KW - Scheila Asteroid KW - spectra KW - reflectance KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1542638610?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+%3D+Astrophysical+Journal.+Letters&rft.atitle=Collisional+excavation+of+Asteroid+%28596%29+Scheila&rft.au=Bodewits%2C+D%3BKelley%2C+M+S%3BLi%2C+J+Y%3BLandsman%2C+W+B%3BBesse%2C+S%3BA%27Hearn%2C+M+F&rft.aulast=Bodewits&rft.aufirst=D&rft.date=2011-05-20&rft.volume=733&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+%3D+Astrophysical+Journal.+Letters&rft.issn=20418205&rft_id=info:doi/10.1088%2F2041-8205%2F733%2F1%2FL3 L2 - http://iopscience.iop.org/2041-8205 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 50 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-11-13 N1 - SubjectsTermNotLitGenreText - asteroids; brightness; comets; dynamics; ejecta; imagery; impacts; main belt asteroids; mass; optical spectra; photometry; reflectance; Scheila Asteroid; spectra; Swift Ultraviolet/Optical Telescope; T-type asteroids; telescope methods; ultraviolet spectra; volatiles DO - http://dx.doi.org/10.1088/2041-8205/733/1/L3 ER - TY - JOUR T1 - Simulating a natural fire regime on an Atlantic coast barrier island complex in Florida, USA AN - 876224816; 14880472 AB - Highlights ao The HFire fire regime model predicted that the natural fire regime was comprised by a mosaic of many small fires. ao A sensitivity analysis revealed that dead fuel moisture and wind speed were very influential on model outcome. ao Total burn frequency had the smallest while total burn frequency had the greatest variance around the empirically derived composite model. The HFire fire regime model was used to simulate the natural fire regime (prior to European settlement) on Kennedy Space Center, Merritt Island National Wildlife Refuge, Canaveral National Seashore, and Cape Canaveral Air Force Station, Florida. Model simulations were run for 500 years and the model was parameterized using information generated from previously published empirical studies on these properties (e.g., lightning fire ignition frequencies and ignition seasonality). A mosaic pattern of frequent small fires dominated this fire regime with rare but extremely large fires occurring during dry La NiA-a periods. This simulated fire size distribution very closely matched the previously published fire size distribution for lightning ignitions on these properties. A sensitivity analysis was performed to establish which parameters were most influential and the range of variation surrounding empirically parameterized model output. Dead fuel moisture and wind speed had the largest influence on model outcome. A wide range of variance was observed surrounding the composite simulation with the least being 6% in total burn frequency and the greatest being 49% in total area burned. Because simulation modeling is the best option for fire regime reconstruction in many rapidly growing shrub dominated systems, these results will be of interest to scientists and fire managers for delineating the natural fire regime on these properties, the southeastern United States and other fire adapted shrub systems worldwide. JF - Ecological Modelling AU - Duncan, Brean W AU - Weishampel, John F AU - Peterson, Seth H AD - Innovative Health Applications, Mail Code: IHA-300, Kennedy Space Center, FL 32899, United States, brean.w.duncan@nasa.gov Y1 - 2011/05/10/ PY - 2011 DA - 2011 May 10 SP - 1639 EP - 1650 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 222 IS - 9 SN - 0304-3800, 0304-3800 KW - Meteorological & Geoastrophysical Abstracts; Environment Abstracts; Ecology Abstracts KW - Florida KW - Fire regime modeling KW - HFire KW - Burns KW - Lightning KW - Fuels KW - Electricity KW - USA, Southeast KW - USA, Atlantic Coast KW - shrubs KW - Models KW - Wind speed KW - Islands KW - mosaics KW - sensitivity analysis KW - ASW, USA, Florida, Merritt I., Merritt Island Natl. Wildlife Refuge KW - ASW, USA, Florida, Cape Canaveral KW - Seasonal variations KW - Wind KW - Coasts KW - Shrubs KW - ASW, USA, Florida KW - Fires KW - composite materials KW - Mathematical models KW - Wildlife KW - Simulation KW - Velocity KW - Lightning fires KW - Numerical simulations KW - Sensitivity analysis KW - Mosaics KW - Barrier islands KW - ASW, USA, Florida, Canaveral Natl. Seashore KW - Size distribution KW - M2 551.55:Wind (551.55) KW - D 04030:Models, Methods, Remote Sensing KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/876224816?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Modelling&rft.atitle=Simulating+a+natural+fire+regime+on+an+Atlantic+coast+barrier+island+complex+in+Florida%2C+USA&rft.au=Duncan%2C+Brean+W%3BWeishampel%2C+John+F%3BPeterson%2C+Seth+H&rft.aulast=Duncan&rft.aufirst=Brean&rft.date=2011-05-10&rft.volume=222&rft.issue=9&rft.spage=1639&rft.isbn=&rft.btitle=&rft.title=Ecological+Modelling&rft.issn=03043800&rft_id=info:doi/10.1016%2Fj.ecolmodel.2011.02.017 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-07-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Burns; Shrubs; Fires; Mathematical models; Fuels; Wildlife; Electricity; Models; Islands; Mosaics; Barrier islands; Seasonal variations; Wind; Size distribution; Coasts; Wind speed; Lightning; Sensitivity analysis; Numerical simulations; Lightning fires; composite materials; mosaics; sensitivity analysis; Velocity; Simulation; shrubs; ASW, USA, Florida; ASW, USA, Florida, Merritt I., Merritt Island Natl. Wildlife Refuge; ASW, USA, Florida, Cape Canaveral; ASW, USA, Florida, Canaveral Natl. Seashore; USA, Southeast; USA, Atlantic Coast DO - http://dx.doi.org/10.1016/j.ecolmodel.2011.02.017 ER - TY - JOUR T1 - Oblique route to turbulence AN - 1541444885; 19371482 AB - Direct numerical simulations have been performed by Mayer, Von Terzi & Fasel (J. Fluid Mech., this issue, vol. 674, 2011, pp. 5-42) to demonstrate that oblique-mode breakdown leads to fully turbulent flow for a Mach 3 flat-plate boundary layer. Since very low level of initial disturbances is required for this transition scenario, oblique-mode breakdown is the most potent mechanism for transition in two-dimensional supersonic boundary layers in low-disturbance environments relevant to flight. JF - Journal of Fluid Mechanics AU - Malik, Mujeeb R AD - NASA Langley Research Center, Hampton, VA 23681, USA Y1 - 2011/05/10/ PY - 2011 DA - 2011 May 10 SP - 1 EP - 4 PB - Cambridge University Press, The Edinburgh Building, Cambridge CB2 2RU United Kingdom VL - 674 SN - 0022-1120, 0022-1120 KW - Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Turbulent flow KW - Turbulent Flow KW - Boundary Layers KW - turbulence KW - Fluid Mechanics KW - Fluid mechanics KW - Numerical simulations KW - Boundary layers KW - Turbulent boundary layer KW - Turbulence KW - Q2 09165:Benthic boundary layer KW - M2 551.511:Mechanics and Thermodynamics of the Atmosphere (551.511) KW - SW 6010:Structures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1541444885?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Fluid+Mechanics&rft.atitle=Oblique+route+to+turbulence&rft.au=Malik%2C+Mujeeb+R&rft.aulast=Malik&rft.aufirst=Mujeeb&rft.date=2011-05-10&rft.volume=674&rft.issue=&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Journal+of+Fluid+Mechanics&rft.issn=00221120&rft_id=info:doi/10.1017%2Fjfm.2011.49 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-07-01 N1 - Last updated - 2015-03-20 N1 - SubjectsTermNotLitGenreText - Fluid mechanics; Turbulent flow; Boundary layers; Turbulence; Turbulent boundary layer; Numerical simulations; Turbulent Flow; Boundary Layers; turbulence; Fluid Mechanics DO - http://dx.doi.org/10.1017/jfm.2011.49 ER - TY - JOUR T1 - A model of silicate grain nucleation and growth in circumstellar outflows AN - 1366815458; 2013-046578 AB - Based on its abundance, high bond energy, and recent measurements of its vapor pressure SiO is a natural candidate for dust nucleation in circumstellar outflows around asymptotic giant branch stars. In this paper, we describe a model of the nucleation and growth of silicate dust in such outflows. The sensitivity of the model to varying choices of poorly constrained chemical parameters is explored, and the merits of using scaled rather than classical nucleation theory are briefly considered. An elaboration of the model that includes magnesium and iron as growth species is then presented and discussed. The composition of the bulk of the grains derived from the model is consistent with olivines and pyroxenes, but somewhat metal-rich grains and very small, nearly pure SiO grains are also produced. Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The = Astrophysical Journal AU - Paquette, John A AU - Ferguson, Frank T AU - Nuth, Joseph A Y1 - 2011/05/10/ PY - 2011 DA - 2011 May 10 EP - paper62 PB - University of Chicago Press for the American Astronomical Society, Chicago, IL VL - 732 IS - 2 SN - 0004-637X, 0004-637X KW - silicates KW - iron silicates KW - alkaline earth metals KW - magnesium KW - magnesian silicates KW - AGB stars KW - grain size KW - olivine group KW - crystal growth KW - iron KW - nesosilicates KW - models KW - cosmic dust KW - pyroxene group KW - silicon monoxide KW - nucleation KW - stars KW - metals KW - olivine KW - orthosilicates KW - chain silicates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1366815458?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+%3D+Astrophysical+Journal&rft.atitle=A+model+of+silicate+grain+nucleation+and+growth+in+circumstellar+outflows&rft.au=Paquette%2C+John+A%3BFerguson%2C+Frank+T%3BNuth%2C+Joseph+A&rft.aulast=Paquette&rft.aufirst=John&rft.date=2011-05-10&rft.volume=732&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+%3D+Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F732%2F2%2F62 L2 - http://iopscience.iop.org/0004-637X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 34 N1 - PubXState - IL N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2013-06-13 N1 - SubjectsTermNotLitGenreText - AGB stars; alkaline earth metals; chain silicates; cosmic dust; crystal growth; grain size; iron; iron silicates; magnesian silicates; magnesium; metals; models; nesosilicates; nucleation; olivine; olivine group; orthosilicates; pyroxene group; silicates; silicon monoxide; stars DO - http://dx.doi.org/10.1088/0004-637X/732/2/62 ER - TY - JOUR T1 - MEASURING THE DARK FLOW WITH PUBLIC X-RAY CLUSTER DATA AN - 920793197; 16203379 AB - We present new results on the 'dark flow' from a measurement of the dipole in the distribution of peculiar velocities of galaxy clusters, applying the methodology proposed and developed by us earlier. Our latest measurement is conducted using new, low-noise 7 yr WMAP data as well as an all-sky sample of X-ray-selected galaxy clusters compiled exclusively from published catalogs. Our analysis of the cosmic microwave background signature of the kinematic Sunyaev-Zel'dovich (SZ) effect finds a statistically significant dipole at the location of galaxy clusters. The residual dipole outside the cluster regions is small, rendering our overall measurement 3 Delta *s-4 Delta *s significant. The amplitude of the dipole correlates with cluster properties, being larger for the most X-ray luminous clusters, as required if the signal is produced by the SZ effect. Since it is measured at zero monopole, the dipole cannot be due to the thermal SZ effect. Our results are consistent with those obtained earlier by us from 5 yr WMAP data and using a proprietary cluster catalog. In addition, they are robust to quadrupole removal, demonstrating that quadrupole leakage contributes negligibly to the signal. The lower noise of the 7 yr WMAP also allows us, for the first time, to obtain tentative empirical confirmation of our earlier conjecture that the adopted filtering alters the sign of the kinematic SZ (KSZ) effect for realistic clusters and thus of the deduced direction of the flow. The latter is consistent with our earlier measurement in both the amplitude and direction. Assuming the filtering indeed alters the sign of the KSZ effect from the clusters, the direction agrees well also with the results of independent work using galaxies as tracers at lower distances. We make all maps and cluster templates derived by us from public data available to the scientific community to allow independent tests of our method and findings. JF - Astrophysical Journal AU - Kashlinsky, A Y1 - 2011/05/01/ PY - 2011 DA - 2011 May 01 PB - Institute of Physics Publishing Inc., The Public Ledger Building, Suite 929 Philadelphia PA 19106 United States IS - 1 SN - 0004-637X, 0004-637X KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - Tracers KW - Leakage KW - Galactic clusters KW - Acoustic waves KW - Cluster spacecraft KW - Noise levels KW - Galaxies KW - Statistical analysis KW - Velocity KW - Cosmic microwave background KW - Noise pollution KW - P 7000:NOISE KW - M2 524:Stars, Universe (524) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/920793197?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrophysical+Journal&rft.atitle=MEASURING+THE+DARK+FLOW+WITH+PUBLIC+X-RAY+CLUSTER+DATA&rft.au=Kashlinsky%2C+A&rft.aulast=Kashlinsky&rft.aufirst=A&rft.date=2011-05-01&rft.volume=&rft.issue=1&rft.spage=jQuery1323908954426%3D%2748%27%3E&rft.isbn=&rft.btitle=&rft.title=Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F732%2F1%2F1 L2 - http://iopscience.iop.org/0004-637X/732/1/1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-02-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Galactic clusters; Cluster spacecraft; Acoustic waves; Statistical analysis; Galaxies; Cosmic microwave background; Noise pollution; Tracers; Leakage; Noise levels; Velocity DO - http://dx.doi.org/10.1088/0004-637X/732/1/1 ER - TY - JOUR T1 - Satellite Sampling and Retrieval Errors in Regional Monthly Rain Estimates from TMI, AMSR-E, SSM/I, AMSU-B, and the TRMM PR AN - 902374402; 15791982 AB - Passive and active microwave rain sensors on board Earth-orbiting satellites estimate monthly rainfall from the instantaneous rain statistics collected during satellite overpasses. It is well known that climate-scale rain estimates from meteorological satellites incur sampling errors resulting from the process of discrete temporal sampling and statistical averaging. Sampling and retrieval errors ultimately become entangled in the estimation of the mean monthly rain rate. The sampling component of the error budget effectively introduces statistical noise into climate-scale rain estimates that obscures the error component associated with the instantaneous rain retrieval. Estimating the accuracy of the retrievals on monthly scales therefore necessitates a decomposition of the total error budget into sampling and retrieval error quantities. This paper presents results from a statistical evaluation of the sampling and retrieval errors for five different spaceborne rain sensors on board nine orbiting satellites. Using an error decomposition methodology developed by one of the authors, sampling and retrieval errors were estimated at 0.25 degree resolution within 150 km of ground-based weather radars located at Kwajalein, Marshall Islands, and Melbourne, Florida. Error and bias statistics were calculated according to the land, ocean, and coast classifications of the surface terrain mask developed for the Goddard Profiling (GPROF) rain algorithm. Variations in the comparative error statistics are attributed to various factors related to differences in the swath geometry of each rain sensor, the orbital and instrument characteristics of the satellite, and the regional climatology. The most significant result from this study found that each of the satellites incurred negative long-term oceanic retrieval biases of 10%-30%. JF - Journal of Applied Meteorology and Climatology AU - Fisher, Brad AU - Wolff, David B AD - Science Systems and Applications, Inc., Lanham, and NASA Goddard Space Flight Center, Greenbelt, Maryland Y1 - 2011/05// PY - 2011 DA - May 2011 SP - 994 EP - 1023 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 50 IS - 5 SN - 1558-8424, 1558-8424 KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - ASW, USA, Florida KW - Weather KW - Sensors KW - Acoustic waves KW - Climate KW - ISEW, Pacific, Marshall Is. KW - Remote sensing KW - Statistical analysis KW - Algorithms KW - Satellite instrumentation KW - Meteorological satellites KW - Satellites KW - Decomposition KW - Weather radar KW - Oceans KW - Tropical Rainfall Measuring Mission (TRMM) KW - Meteorology KW - Climatology KW - Noise pollution KW - budgets KW - PSE, Australia, Victoria, Melbourne KW - P 1000:MARINE POLLUTION KW - M2 556.56:Swamps, Marshes (556.56) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/902374402?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Meteorology+and+Climatology&rft.atitle=Satellite+Sampling+and+Retrieval+Errors+in+Regional+Monthly+Rain+Estimates+from+TMI%2C+AMSR-E%2C+SSM%2FI%2C+AMSU-B%2C+and+the+TRMM+PR&rft.au=Fisher%2C+Brad%3BWolff%2C+David+B&rft.aulast=Fisher&rft.aufirst=Brad&rft.date=2011-05-01&rft.volume=50&rft.issue=5&rft.spage=994&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Meteorology+and+Climatology&rft.issn=15588424&rft_id=info:doi/10.1175%2F2010JAMC2487.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Number of references - 32 N1 - Last updated - 2013-07-15 N1 - SubjectsTermNotLitGenreText - Weather radar; Acoustic waves; Algorithms; Statistical analysis; Tropical Rainfall Measuring Mission (TRMM); Climatology; Noise pollution; Meteorological satellites; Satellite instrumentation; Weather; Sensors; Oceans; Climate; Remote sensing; Meteorology; Decomposition; budgets; Satellites; ASW, USA, Florida; ISEW, Pacific, Marshall Is.; PSE, Australia, Victoria, Melbourne DO - http://dx.doi.org/10.1175/2010JAMC2487.1 ER - TY - JOUR T1 - Modification of Jupiter's stratosphere three weeks after the 2009 impact AN - 894807657; 2011-080346 JF - Icarus AU - Fast, Kelly E AU - Kostiuk, Theodor AU - Livengood, Timothy A AU - Hewagama, Tilak AU - Annen, John Y1 - 2011/05// PY - 2011 DA - May 2011 SP - 195 EP - 200 PB - Elsevier, New York, NY VL - 213 IS - 1 SN - 0019-1035, 0019-1035 KW - altitude KW - Jupiter KW - aliphatic hydrocarbons KW - troposphere KW - ethane KW - temperature KW - infrared spectra KW - giant planets KW - brightness KW - stratosphere KW - dynamics KW - opacity KW - composition KW - thermal emission KW - spectra KW - outer planets KW - radiative transfer KW - pressure KW - atmosphere KW - alkanes KW - impacts KW - ejecta KW - planets KW - organic compounds KW - hydrocarbons KW - aerosols KW - latitude KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/894807657?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Modification+of+Jupiter%27s+stratosphere+three+weeks+after+the+2009+impact&rft.au=Fast%2C+Kelly+E%3BKostiuk%2C+Theodor%3BLivengood%2C+Timothy+A%3BHewagama%2C+Tilak%3BAnnen%2C+John&rft.aulast=Fast&rft.aufirst=Kelly&rft.date=2011-05-01&rft.volume=213&rft.issue=1&rft.spage=195&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2011.02.008 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 44 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - aerosols; aliphatic hydrocarbons; alkanes; altitude; atmosphere; brightness; composition; dynamics; ejecta; ethane; giant planets; hydrocarbons; impacts; infrared spectra; Jupiter; latitude; opacity; organic compounds; outer planets; planets; pressure; radiative transfer; spectra; stratosphere; temperature; thermal emission; troposphere DO - http://dx.doi.org/10.1016/j.icarus.2011.02.008 ER - TY - JOUR T1 - Partitioning behavior at 9 GPa in the Fe-S system and implications for planetary evolution AN - 881453521; 2011-064356 AB - Solid metal/liquid metal partitioning experiments were conducted at 9 GPa and 1323-1873 K in the Fe-S system. Analysis of the experimental charges by in situ laser ablation inductively coupled plasma mass spectrometry enabled partitioning results to be obtained for a total of 21 trace elements (Co, Ni, Cu, Ga, Ge, As, Mo, Ru, Rh, Pd, Ag, Sn, Sb, W, Re, Os, Ir, Pt, Au, Pb, and Bi). This new, elevated pressure dataset for the Fe-S system allows a direct comparison to the extensive data available at 0.1M Pa and permits evaluation of the effect of pressure on partitioning in this system. The majority of the elements studied exhibit different solid metal/liquid metal partitioning behaviors at 9 GPa than at 0.1 MPa. Additionally, the nature of these differences varies significantly between the 21 trace elements studied, spanning the range of behaviors of partitioning from more strongly into solid metal, to less strongly into solid metal, and to becoming insensitive to the metallic liquid composition. We conclude that pressure affects solid metal/liquid metal partitioning behavior in the Fe-S system and discuss the implications for fractionations due to Earth's core solidification and for planetary differentiation models. JF - Earth and Planetary Science Letters AU - Chabot, Nancy L AU - McDonough, William F AU - Jones, John H AU - Saslow, Sarah A AU - Ash, Richard D AU - Draper, David S AU - Agee, Carl B Y1 - 2011/05// PY - 2011 DA - May 2011 SP - 425 EP - 434 PB - Elsevier, Amsterdam VL - 305 IS - 3-4 SN - 0012-821X, 0012-821X KW - liquid phase KW - experimental studies KW - pressure KW - laser methods KW - differentiation KW - mass spectra KW - siderophile elements KW - high pressure KW - iron KW - solid phase KW - models KW - ICP mass spectra KW - partitioning KW - metals KW - sulfur KW - planetology KW - core KW - spectra KW - trace elements KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881453521?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=Partitioning+behavior+at+9+GPa+in+the+Fe-S+system+and+implications+for+planetary+evolution&rft.au=Chabot%2C+Nancy+L%3BMcDonough%2C+William+F%3BJones%2C+John+H%3BSaslow%2C+Sarah+A%3BAsh%2C+Richard+D%3BDraper%2C+David+S%3BAgee%2C+Carl+B&rft.aulast=Chabot&rft.aufirst=Nancy&rft.date=2011-05-01&rft.volume=305&rft.issue=3-4&rft.spage=425&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2011.03.027 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 54 N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Supplemental data available in online version N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - core; differentiation; experimental studies; high pressure; ICP mass spectra; iron; laser methods; liquid phase; mass spectra; metals; models; partitioning; planetology; pressure; siderophile elements; solid phase; spectra; sulfur; trace elements DO - http://dx.doi.org/10.1016/j.epsl.2011.03.027 ER - TY - JOUR T1 - Massive CO (sub 2) ice deposits sequestered in the south polar layered deposits of Mars AN - 875011857; 2011-057218 AB - Shallow Radar soundings from the Mars Reconnaissance Orbiter reveal a buried deposit of carbon dioxide (CO (sub 2) ) ice within the south polar layered deposits of Mars with a volume of 9500 to 12,500 cubic kilometers, about 30 times that previously estimated for the south pole residual cap. The deposit occurs within a stratigraphic unit that is uniquely marked by collapse features and other evidence of interior CO (sub 2) volatile release. If released into the atmosphere at times of high obliquity, the CO (sub 2) reservoir would increase the atmospheric mass by up to 80%, leading to more frequent and intense dust storms and to more regions where liquid water could persist without boiling. JF - Science AU - Phillips, Roger J AU - Davis, Brian J AU - Tanaka, Kenneth L AU - Byrne, Shane AU - Mellon, Michael T AU - Putzig, Nathaniel E AU - Haberle, Robert M AU - Kahre, Melinda A AU - Campbell, Bruce A AU - Carter, Lynn M AU - Smith, Isaac B AU - Holt, John W AU - Smrekar, Suzanne E AU - Nunes, Daniel C AU - Plaut, Jeffrey J AU - Egan, Anthony F AU - Titus, Timothy N AU - Seu, Roberto Y1 - 2011/05// PY - 2011 DA - May 2011 SP - 838 EP - 841 PB - American Association for the Advancement of Science, Washington, DC VL - 332 IS - 6031 SN - 0036-8075, 0036-8075 KW - lithostratigraphy KW - polar regions KW - SHARAD KW - radar methods KW - Mars Reconnaissance Orbiter KW - Mars KW - paleoclimatology KW - ice caps KW - carbon dioxide KW - terrestrial planets KW - models KW - planets KW - volatiles KW - topography KW - paleoenvironment KW - surface features KW - depositional environment KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/875011857?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Massive+CO+%28sub+2%29+ice+deposits+sequestered+in+the+south+polar+layered+deposits+of+Mars&rft.au=Phillips%2C+Roger+J%3BDavis%2C+Brian+J%3BTanaka%2C+Kenneth+L%3BByrne%2C+Shane%3BMellon%2C+Michael+T%3BPutzig%2C+Nathaniel+E%3BHaberle%2C+Robert+M%3BKahre%2C+Melinda+A%3BCampbell%2C+Bruce+A%3BCarter%2C+Lynn+M%3BSmith%2C+Isaac+B%3BHolt%2C+John+W%3BSmrekar%2C+Suzanne+E%3BNunes%2C+Daniel+C%3BPlaut%2C+Jeffrey+J%3BEgan%2C+Anthony+F%3BTitus%2C+Timothy+N%3BSeu%2C+Roberto&rft.aulast=Phillips&rft.aufirst=Roger&rft.date=2011-05-01&rft.volume=332&rft.issue=6031&rft.spage=838&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.1203091 L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 22 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - carbon dioxide; depositional environment; ice caps; lithostratigraphy; Mars; Mars Reconnaissance Orbiter; models; paleoclimatology; paleoenvironment; planets; polar regions; radar methods; SHARAD; surface features; terrestrial planets; topography; volatiles DO - http://dx.doi.org/10.1126/science.1203091 ER - TY - JOUR T1 - Field-portable Mossbauer spectroscopy on Earth, the Moon, Mars, and beyond AN - 872121371; 2011-052148 AB - Iron occurs naturally as Fe (super 2+) , Fe (super 3+) , and, to a lesser extent, as Fe (super 0) . Many fundamental (bio)geochemical processes are based on redox cycling between these oxidation states. Mossbauer spectroscopy provides quantitative information about the distribution of Fe among its oxidation states, identification of Fe-bearing phases, and relative distribution of Fe among those phases. Portable, miniaturised Mossbauer spectrometers were developed for NASA's Mars Exploration Rovers (in operation since 2004) and provide a means for non-destructive, in-situ field investigations. On Mars, these instruments provided evidence for aqueous activity with implications for habitability, were applied in geological mapping of the landing sites, and helped to identify meteorites, for example. On Earth, they were used in field studies of green rust, the identification of air pollution sources, or the study of archaeological artefacts. Their application to in-situ resource utilisation (ISRU) on the Moon has been demonstrated in a recent NASA field test of hardware for oxygen production. A new detector system in an advanced version of these instruments is based on Si Drift Detectors and permits the simultaneous acquisition of X-ray fluorescence spectra to determine elemental compositions. JF - Geochemistry - Exploration, Environment, Analysis AU - Schroeder, Christian AU - Klingelhoefer, Goestar AU - Morris, Richard V AU - Bernhardt, Bodo AU - Blumers, Mathias AU - Fleischer, Iris AU - Rodionov, Daniel S AU - Girones Lopez, Jordi AU - de Souza, Paulo A, Jr Y1 - 2011/05// PY - 2011 DA - May 2011 SP - 129 EP - 143 PB - Geological Society Publishing House, London VL - 11 IS - 2 SN - 1467-7873, 1467-7873 KW - stony meteorites KW - isotopes KW - well-logging KW - techniques KW - Mars KW - mapping KW - artifacts KW - exploration KW - environmental management KW - meteorites KW - X-ray fluorescence spectra KW - spectra KW - chondrites KW - geochemistry KW - Eh KW - Mossbauer spectra KW - archaeology KW - Earth KW - in situ KW - Moon KW - biochemistry KW - oxidation KW - pollution KW - cosmochemistry KW - research KW - terrestrial planets KW - planets KW - petrography KW - instruments KW - 04:Extraterrestrial geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/872121371?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochemistry+-+Exploration%2C+Environment%2C+Analysis&rft.atitle=Field-portable+Mossbauer+spectroscopy+on+Earth%2C+the+Moon%2C+Mars%2C+and+beyond&rft.au=Schroeder%2C+Christian%3BKlingelhoefer%2C+Goestar%3BMorris%2C+Richard+V%3BBernhardt%2C+Bodo%3BBlumers%2C+Mathias%3BFleischer%2C+Iris%3BRodionov%2C+Daniel+S%3BGirones+Lopez%2C+Jordi%3Bde+Souza%2C+Paulo+A%2C+Jr&rft.aulast=Schroeder&rft.aufirst=Christian&rft.date=2011-05-01&rft.volume=11&rft.issue=2&rft.spage=129&rft.isbn=&rft.btitle=&rft.title=Geochemistry+-+Exploration%2C+Environment%2C+Analysis&rft.issn=14677873&rft_id=info:doi/ L2 - http://geea.lyellcollection.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States | Reference includes data from The Geological Society, London, London, United Kingdom N1 - Date revised - 2011-01-01 N1 - Number of references - 61 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - archaeology; artifacts; biochemistry; chondrites; cosmochemistry; Earth; Eh; environmental management; exploration; geochemistry; in situ; instruments; isotopes; mapping; Mars; meteorites; Moon; Mossbauer spectra; oxidation; petrography; planets; pollution; research; spectra; stony meteorites; techniques; terrestrial planets; well-logging; X-ray fluorescence spectra ER - TY - JOUR T1 - Accurate adaptive level set method and sharpening technique for three dimensional deforming interfaces AN - 869838583; 14611508 AB - In this paper, we demonstrate improved accuracy of the level set method for resolving deforming interfaces by proposing two key elements: (1) accurate level set solutions on adapted Cartesian grids by judiciously choosing interpolation polynomials in regions of different grid levels and (2) enhanced re-initialization by an interface sharpening procedure. The level set equation is solved using a fifth order WENO scheme or a second order central differencing scheme depending on availability of uniform stencils at each grid point. Grid adaptation criteria are determined so that the Hamiltonian functions at nodes adjacent to interfaces are always calculated by the fifth order WENO scheme. This selective usage between the fifth order WENO and second order central differencing schemes is confirmed to give more accurate results compared to those in literature for standard test problems. In order to further improve accuracy especially near thin filaments, we suggest an artificial sharpening method, which is in a similar form with the conventional re-initialization method but utilizes sign of curvature instead of sign of the level set function. Consequently, volume loss due to numerical dissipation on thin filaments is remarkably reduced for the test problems. JF - Computers & Fluids AU - Kim, Hyoungjin AU - Liou, Meng-Sing AD - NASA Glenn Research Center, Cleveland, 44135 OH, United States, hyoungjinkim1@gmail.com Y1 - 2011/05// PY - 2011 DA - May 2011 SP - 111 EP - 129 PB - Elsevier Science, P.O. Box 800 Kidlington Oxford OX5 1DX UK VL - 44 IS - 1 SN - 0045-7930, 0045-7930 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Level set KW - Re-initialization KW - Interface tracking KW - Interface sharpening KW - Testing Procedures KW - Adaptations KW - Mathematical models KW - Interfaces KW - Computers KW - Adaptation KW - Standards KW - SW 0810:General KW - Q2 09424:Applied economics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/869838583?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Computers+%26+Fluids&rft.atitle=Accurate+adaptive+level+set+method+and+sharpening+technique+for+three+dimensional+deforming+interfaces&rft.au=Kim%2C+Hyoungjin%3BLiou%2C+Meng-Sing&rft.aulast=Kim&rft.aufirst=Hyoungjin&rft.date=2011-05-01&rft.volume=44&rft.issue=1&rft.spage=111&rft.isbn=&rft.btitle=&rft.title=Computers+%26+Fluids&rft.issn=00457930&rft_id=info:doi/10.1016%2Fj.compfluid.2010.12.020 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-09-01 N1 - Last updated - 2016-02-04 N1 - SubjectsTermNotLitGenreText - Mathematical models; Adaptations; Testing Procedures; Computers; Interfaces; Adaptation; Standards DO - http://dx.doi.org/10.1016/j.compfluid.2010.12.020 ER - TY - JOUR T1 - The Astrobiology Primer v2.0; an early-career astrobiology project AN - 1529794525; 2014-036198 JF - Astrobiology AU - Domagal-Goldman, Shawn D AU - Wright, Katherine E AU - Anonymous Y1 - 2011/05// PY - 2011 DA - May 2011 SP - 371 PB - Mary Ann Liebert, Larchmont, NY VL - 11 IS - 4 SN - 1531-1074, 1531-1074 KW - Astrobiology Primer KW - programs KW - graduate-level education KW - textbooks KW - astrobiology KW - education KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529794525?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrobiology&rft.atitle=The+Astrobiology+Primer+v2.0%3B+an+early-career+astrobiology+project&rft.au=Domagal-Goldman%2C+Shawn+D%3BWright%2C+Katherine+E%3BAnonymous&rft.aulast=Domagal-Goldman&rft.aufirst=Shawn&rft.date=2011-05-01&rft.volume=11&rft.issue=4&rft.spage=371&rft.isbn=&rft.btitle=&rft.title=Astrobiology&rft.issn=15311074&rft_id=info:doi/ L2 - http://www.liebertpub.com/publication.aspx?pub_id=99 LA - English DB - GeoRef N1 - Conference title - Astrobiology graduate conference (AbGradCon) 2011 N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - PubXState - NY N1 - Last updated - 2014-05-29 N1 - SubjectsTermNotLitGenreText - astrobiology; Astrobiology Primer; education; graduate-level education; programs; textbooks ER - TY - JOUR T1 - Abiotic oxidation of organic compounds in the hyperarid soils of La Joya Desert, under conditions of the Viking-labeled release experiment; implications for possible oxidants on Martian soils AN - 1529792652; 2014-036255 JF - Astrobiology AU - Valdivia-Silva, Julio AU - Anonymous Y1 - 2011/05// PY - 2011 DA - May 2011 SP - 387 PB - Mary Ann Liebert, Larchmont, NY VL - 11 IS - 4 SN - 1531-1074, 1531-1074 KW - soils KW - experimental studies KW - terrestrial environment KW - monitoring KW - metabolism KW - arid environment KW - oxidation KW - Viking Program KW - Mars KW - perchlorate KW - terrestrial planets KW - planets KW - South America KW - organic compounds KW - biogenic processes KW - Pampa de La Joya KW - abiotic processes KW - natural analogs KW - hydrogen peroxide KW - Peru KW - Arequipa Peru KW - kinetics KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1529792652?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrobiology&rft.atitle=Abiotic+oxidation+of+organic+compounds+in+the+hyperarid+soils+of+La+Joya+Desert%2C+under+conditions+of+the+Viking-labeled+release+experiment%3B+implications+for+possible+oxidants+on+Martian+soils&rft.au=Valdivia-Silva%2C+Julio%3BAnonymous&rft.aulast=Valdivia-Silva&rft.aufirst=Julio&rft.date=2011-05-01&rft.volume=11&rft.issue=4&rft.spage=387&rft.isbn=&rft.btitle=&rft.title=Astrobiology&rft.issn=15311074&rft_id=info:doi/ L2 - http://www.liebertpub.com/publication.aspx?pub_id=99 LA - English DB - GeoRef N1 - Conference title - Astrobiology graduate conference (AbGradCon) 2011 N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - PubXState - NY N1 - Last updated - 2014-05-29 N1 - SubjectsTermNotLitGenreText - abiotic processes; Arequipa Peru; arid environment; biogenic processes; experimental studies; hydrogen peroxide; kinetics; Mars; metabolism; monitoring; natural analogs; organic compounds; oxidation; Pampa de La Joya; perchlorate; Peru; planets; soils; South America; terrestrial environment; terrestrial planets; Viking Program ER - TY - JOUR T1 - Iron isotope fractionation during microbial dissimilatory iron oxide reduction in simulated Archaean seawater AN - 1028075561; 14706001 AB - The largest Fe isotope excursion yet measured in marine sedimentary rocks occurs in shales, carbonates, and banded iron formations of Neoarchaean and Paleoproterozoic age. The results of field and laboratory studies suggest a potential role for microbial dissimilatory iron reduction (DIR) in producing this excursion. However, most experimental studies of Fe isotope fractionation during DIR have been conducted in simple geochemical systems, using pure Fe(III) oxide substrates that are not direct analogues to phases likely to have been present in Precambrian marine environments. In this study, Fe isotope fractionation was investigated during microbial reduction of an amorphous Fe(III) oxide-silica coprecipitate in anoxic, high-silica, low-sulphate artificial Archaean seawater at 30 degree C to determine if such conditions alter the extent of reduction or isotopic fractionations relative to those observed in simple systems. The Fe(III)-Si coprecipitate was highly reducible (c.80% reduction) in the presence of excess acetate. The coprecipitate did not undergo phase conversion (e.g. to green rust, magnetite or siderite) during reduction. Iron isotope fractionations suggest that rapid and near-complete isotope exchange took place among all Fe(II) and Fe(III) components, in contrast to previous work on goethite and hematite, where exchange was limited to the outer few atom layers of the substrate. Large quantities of low- delta 56Fe Fe(II) (aqueous and solid phase) were produced during reduction of the Fe(III)-Si coprecipitate. These findings shed new light on DIR as a mechanism for producing Fe isotope variations observed in Neoarchaean and Paleoproterozoic marine sedimentary rocks. JF - Geobiology AU - PERCAKaDENNETT, E M AU - Beard, B L AU - XU, H AU - Konishi, H AU - Johnson, C M AU - Roden, Ee AD - Department of Geoscience and NASA Astrobiology Institute, University of WisconsinaMadison, WI, USA Y1 - 2011/05// PY - 2011 DA - May 2011 SP - 205 EP - 220 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 USA VL - 9 IS - 3 SN - 1472-4677, 1472-4677 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Haematite KW - Isotopes KW - Age KW - Iron isotopes KW - Iron oxides KW - goethite KW - iron oxides KW - Palaeo studies KW - Siderite KW - Acetic acid KW - Rust KW - Goethite KW - Marine environment KW - Chronostratigraphy KW - Sedimentary rocks KW - oxides KW - Shale KW - Iron KW - carbonates KW - Isotope fractionation KW - magnetite KW - J 02420:Plant Diseases KW - A 01300:Methods KW - O 2050:Chemical Oceanography KW - Q1 08187:Palaeontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1028075561?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geobiology&rft.atitle=Iron+isotope+fractionation+during+microbial+dissimilatory+iron+oxide+reduction+in+simulated+Archaean+seawater&rft.au=PERCAKaDENNETT%2C+E+M%3BBeard%2C+B+L%3BXU%2C+H%3BKonishi%2C+H%3BJohnson%2C+C+M%3BRoden%2C+Ee&rft.aulast=PERCAKaDENNETT&rft.aufirst=E&rft.date=2011-05-01&rft.volume=9&rft.issue=3&rft.spage=205&rft.isbn=&rft.btitle=&rft.title=Geobiology&rft.issn=14724677&rft_id=info:doi/10.1111%2Fj.1472-4669.2011.00277.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-07-01 N1 - Document feature - figure 7 N1 - Last updated - 2014-05-02 N1 - SubjectsTermNotLitGenreText - Haematite; Iron isotopes; Iron oxides; Palaeo studies; Chronostratigraphy; Sedimentary rocks; Siderite; Goethite; Isotope fractionation; Age; Isotopes; iron oxides; goethite; Marine environment; oxides; Shale; Rust; carbonates; Acetic acid; Iron; magnetite DO - http://dx.doi.org/10.1111/j.1472-4669.2011.00277.x ER - TY - JOUR T1 - Increasing interaction of alkaline magmas with lower crustal gabbroic cumulates over the evolution of Mount Taylor volcanic field, New Mexico AN - 1015458859; 2012-046841 JF - New Mexico Geology AU - Schmidt, M E AU - Crumpler, Larry S AU - Schrader, C M AU - Anonymous Y1 - 2011/05// PY - 2011 DA - May 2011 SP - 53 PB - New Mexico Bureau of Geology and Mineral Resources, Socorro, NM VL - 33 IS - 2 SN - 0196-948X, 0196-948X KW - United States KW - Colorado Plateau KW - igneous rocks KW - magmatism KW - continental crust KW - New Mexico KW - alkalic composition KW - volcanic fields KW - Cenozoic KW - Tertiary KW - plutonic rocks KW - Mount Taylor volcanic field KW - lava KW - cumulates KW - volcanism KW - Neogene KW - magmas KW - Cibola County New Mexico KW - Pliocene KW - gabbros KW - gabbroic composition KW - lower crust KW - crust KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1015458859?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=New+Mexico+Geology&rft.atitle=Increasing+interaction+of+alkaline+magmas+with+lower+crustal+gabbroic+cumulates+over+the+evolution+of+Mount+Taylor+volcanic+field%2C+New+Mexico&rft.au=Schmidt%2C+M+E%3BCrumpler%2C+Larry+S%3BSchrader%2C+C+M%3BAnonymous&rft.aulast=Schmidt&rft.aufirst=M&rft.date=2011-05-01&rft.volume=33&rft.issue=2&rft.spage=53&rft.isbn=&rft.btitle=&rft.title=New+Mexico+Geology&rft.issn=0196948X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NM N1 - Last updated - 2012-06-07 N1 - CODEN - NMGED2 N1 - SubjectsTermNotLitGenreText - alkalic composition; Cenozoic; Cibola County New Mexico; Colorado Plateau; continental crust; crust; cumulates; gabbroic composition; gabbros; igneous rocks; lava; lower crust; magmas; magmatism; Mount Taylor volcanic field; Neogene; New Mexico; Pliocene; plutonic rocks; Tertiary; United States; volcanic fields; volcanism ER - TY - JOUR T1 - Mapping the McCartys lava flow, El Malpais, Zuni-Bandera Field; the role of inflation in the emplacement of large lava flows AN - 1015458737; 2012-046833 JF - New Mexico Geology AU - Crumpler, Larry S AU - Zimbelman, J R AU - Bleacher, J E AU - Garry, W B AU - Aubele, J C AU - Self, S AU - Anonymous Y1 - 2011/05// PY - 2011 DA - May 2011 SP - 51 PB - New Mexico Bureau of Geology and Mineral Resources, Socorro, NM VL - 33 IS - 2 SN - 0196-948X, 0196-948X KW - United States KW - volcanic rocks KW - lava flows KW - igneous rocks KW - Hawaii KW - mapping KW - East Pacific Ocean Islands KW - New Mexico KW - Zuni-Bandera volcanic field KW - El Malpais volcanic field KW - emplacement KW - Zuni Mountains KW - pyroclastics KW - lava KW - volcanism KW - Oceania KW - McCartys lava flow KW - pahoehoe KW - Polynesia KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1015458737?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=New+Mexico+Geology&rft.atitle=Mapping+the+McCartys+lava+flow%2C+El+Malpais%2C+Zuni-Bandera+Field%3B+the+role+of+inflation+in+the+emplacement+of+large+lava+flows&rft.au=Crumpler%2C+Larry+S%3BZimbelman%2C+J+R%3BBleacher%2C+J+E%3BGarry%2C+W+B%3BAubele%2C+J+C%3BSelf%2C+S%3BAnonymous&rft.aulast=Crumpler&rft.aufirst=Larry&rft.date=2011-05-01&rft.volume=33&rft.issue=2&rft.spage=51&rft.isbn=&rft.btitle=&rft.title=New+Mexico+Geology&rft.issn=0196948X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - New Mexico Geological Society spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NM N1 - Last updated - 2012-06-07 N1 - CODEN - NMGED2 N1 - SubjectsTermNotLitGenreText - East Pacific Ocean Islands; El Malpais volcanic field; emplacement; Hawaii; igneous rocks; lava; lava flows; mapping; McCartys lava flow; New Mexico; Oceania; pahoehoe; Polynesia; pyroclastics; United States; volcanic rocks; volcanism; Zuni Mountains; Zuni-Bandera volcanic field ER - TY - JOUR T1 - Airborne observation of aerosol optical depth during ARCTAS: vertical profiles, inter-comparison and fine-mode fraction AN - 874189587; 14822321 AB - We describe aerosol optical depth (AOD) measured during the Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) experiment, focusing on vertical profiles, inter-comparison with correlative observations and fine-mode fraction. Arctic haze observed in 0.1. The retrieved fine-mode fraction of AOD is mostly between 0.7 and 1.0, and its root mean square difference (in both directions) from column-integral submicron fraction (measured with nephelometers, absorption photometers and an impactor) is 0.12. These AOD measurements from the NASA P-3 aircraft, after compensation for below-aircraft light attenuation by vertical extrapolation, mostly fall within +/-0.02 of AERONET ground-based measurements between 340-1640 nm for five overpass events. JF - Atmospheric Chemistry and Physics AU - Shinozuka, Y AU - Redemann, J AU - Livingston, J M AU - Russell, P B AU - Clarke, AD AU - Howell, S G AU - Freitag, S AU - O'Neill, N T AU - Reid, E A AU - Johnson, R AD - NASA Ames Research Center, Moffett Field, California, USA Y1 - 2011/04/20/ PY - 2011 DA - 2011 Apr 20 SP - 3673 EP - 3688 PB - European Geophysical Society, Max-Planck-Str. 13 Katlenburg-Lindau Germany VL - 11 IS - 8 SN - 1680-7316, 1680-7316 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts; Pollution Abstracts KW - Extrapolation KW - Optical properties KW - Light absorption KW - Absorption spectroscopy KW - Absorption KW - Nephelometers KW - Arctic KW - Sorption KW - Aerosols KW - Aircraft observations KW - Air Masses KW - Smoke plumes KW - Biomass KW - Arctic haze KW - Vertical profiles KW - Smoke KW - Canada KW - Profiles KW - Atmospheric chemistry KW - Combustion products KW - Mass spectrometry KW - Optical analysis KW - Carbon KW - Aircraft KW - Arctic research KW - USA, Alaska KW - Absorption (physics) KW - Absorption spectra KW - burning KW - Polar environments KW - Tracking KW - PN, Arctic KW - Incineration KW - Optical depth of aerosols KW - SW 5010:Network design KW - Q2 09223:Optical properties KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION KW - AQ 00008:Effects of Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/874189587?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Chemistry+and+Physics&rft.atitle=Airborne+observation+of+aerosol+optical+depth+during+ARCTAS%3A+vertical+profiles%2C+inter-comparison+and+fine-mode+fraction&rft.au=Shinozuka%2C+Y%3BRedemann%2C+J%3BLivingston%2C+J+M%3BRussell%2C+P+B%3BClarke%2C+AD%3BHowell%2C+S+G%3BFreitag%2C+S%3BO%27Neill%2C+N+T%3BReid%2C+E+A%3BJohnson%2C+R&rft.aulast=Shinozuka&rft.aufirst=Y&rft.date=2011-04-20&rft.volume=11&rft.issue=8&rft.spage=3673&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics&rft.issn=16807316&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-06-01 N1 - Last updated - 2014-05-02 N1 - SubjectsTermNotLitGenreText - Sorption; Light absorption; Absorption spectroscopy; Aerosols; Absorption (physics); Optical properties; Absorption spectra; Tracking; Vertical profiles; Extrapolation; Atmospheric chemistry; Aircraft observations; Nephelometers; Mass spectrometry; Optical depth of aerosols; Smoke plumes; Arctic haze; Arctic research; Smoke; Optical analysis; Aircraft; Combustion products; Absorption; Polar environments; burning; Biomass; Incineration; Carbon; Profiles; Air Masses; Arctic; USA, Alaska; PN, Arctic; Canada ER - TY - CPAPER T1 - Assimilating NASA Soil Moisture and Snow Products for Regional and Global Drought Monitoring T2 - 2011 American Water Resources Association Spring Specialty Conference (AWRA 2011) AN - 1313027088; 6065964 JF - 2011 American Water Resources Association Spring Specialty Conference (AWRA 2011) AU - Mocko, David AU - Peters-Lidard, Christa AU - Kumar, Sujay Y1 - 2011/04/18/ PY - 2011 DA - 2011 Apr 18 KW - Droughts KW - Soil moisture KW - Snow UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313027088?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+American+Water+Resources+Association+Spring+Specialty+Conference+%28AWRA+2011%29&rft.atitle=Assimilating+NASA+Soil+Moisture+and+Snow+Products+for+Regional+and+Global+Drought+Monitoring&rft.au=Mocko%2C+David%3BPeters-Lidard%2C+Christa%3BKumar%2C+Sujay&rft.aulast=Mocko&rft.aufirst=David&rft.date=2011-04-18&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+American+Water+Resources+Association+Spring+Specialty+Conference+%28AWRA+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.awra.org/meetings/Baltimore2011/doc/Baltimore2011FinalProgram.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - NASA's Applied Sciences Program in Climate Change Impacts T2 - 2011 American Water Resources Association Spring Specialty Conference (AWRA 2011) AN - 1312991618; 6065907 JF - 2011 American Water Resources Association Spring Specialty Conference (AWRA 2011) AU - Doorn, Bradley AU - Toll, David AU - Engman, Ted Y1 - 2011/04/18/ PY - 2011 DA - 2011 Apr 18 KW - Climatic changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312991618?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+American+Water+Resources+Association+Spring+Specialty+Conference+%28AWRA+2011%29&rft.atitle=NASA%27s+Applied+Sciences+Program+in+Climate+Change+Impacts&rft.au=Doorn%2C+Bradley%3BToll%2C+David%3BEngman%2C+Ted&rft.aulast=Doorn&rft.aufirst=Bradley&rft.date=2011-04-18&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+American+Water+Resources+Association+Spring+Specialty+Conference+%28AWRA+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.awra.org/meetings/Baltimore2011/doc/Baltimore2011FinalProgram.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - Rotational variability of Earth's polar regions; implications for detecting snowball planets AN - 1416688251; 2013-060176 AB - We have obtained the first time-resolved, disk-integrated observations of Earth's poles with the Deep Impact spacecraft as part of the EPOXI mission of opportunity. These data mimic what we will see when we point next-generation space telescopes at nearby exoplanets. We use principal component analysis (PCA) and rotational light curve inversion to characterize color inhomogeneities and map their spatial distribution from these unusual vantage points, as a complement to the equatorial views presented by Cowan et al. in 2009. We also perform the same PCA on a suite of simulated rotational multi-band light curves from NASA's Virtual Planetary Laboratory three-dimensional spectral Earth model. This numerical experiment allows us to understand what sorts of surface features PCA can robustly identify. We find that the EPOXI polar observations have similar broadband colors as the equatorial Earth, but with 20%-30% greater apparent albedo. This is because the polar observations are most sensitive to mid-latitudes, which tend to be more cloudy than the equatorial latitudes emphasized by the original EPOXI Earth observations. The cloudiness of the mid-latitudes also manifests itself in the form of increased variability at short wavelengths in the polar observations and as a dominant gray eigencolor in the south polar observation. We construct a simple reflectance model for a snowball Earth. By construction, our model has a higher Bond albedo than the modern Earth; its surface albedo is so high that Rayleigh scattering does not noticeably affect its spectrum. The rotational color variations occur at short wavelengths due to the large contrast between glacier ice and bare land in those wavebands. Thus, we find that both the broadband colors and diurnal color variations of such a planet would be easily distinguishable from the modern-day Earth, regardless of viewing angle. Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The = Astrophysical Journal AU - Cowan, Nicolas B AU - Robinson, Tyler AU - Livengood, Timothy A AU - Deming, Drake AU - Agol, Eric AU - A'Hearn, Michael F AU - Charbonneau, David AU - Lisse, Carey M AU - Meadows, Victoria S AU - Seager, Sara AU - Shields, Aomawa L AU - Wellnitz, Dennis D Y1 - 2011/04/10/ PY - 2011 DA - 2011 Apr 10 EP - paper 76 PB - University of Chicago Press for the American Astronomical Society, Chicago, IL VL - 731 IS - 1 SN - 0004-637X, 0004-637X KW - methods KW - albedo KW - polar regions KW - Earth KW - extrasolar planets KW - principal components analysis KW - statistical analysis KW - snowball Earth KW - glaciers KW - variations KW - light curves KW - wavelength KW - spatial distribution KW - planets KW - photometry KW - color KW - rotation KW - ice KW - surface features KW - diurnal variations KW - reflectance KW - EPOXI Mission KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1416688251?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+%3D+Astrophysical+Journal&rft.atitle=Rotational+variability+of+Earth%27s+polar+regions%3B+implications+for+detecting+snowball+planets&rft.au=Cowan%2C+Nicolas+B%3BRobinson%2C+Tyler%3BLivengood%2C+Timothy+A%3BDeming%2C+Drake%3BAgol%2C+Eric%3BA%27Hearn%2C+Michael+F%3BCharbonneau%2C+David%3BLisse%2C+Carey+M%3BMeadows%2C+Victoria+S%3BSeager%2C+Sara%3BShields%2C+Aomawa+L%3BWellnitz%2C+Dennis+D&rft.aulast=Cowan&rft.aufirst=Nicolas&rft.date=2011-04-10&rft.volume=731&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+%3D+Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F731%2F1%2F76 L2 - http://iopscience.iop.org/0004-637X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 57 N1 - PubXState - IL N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendix N1 - Last updated - 2013-08-02 N1 - SubjectsTermNotLitGenreText - albedo; color; diurnal variations; Earth; EPOXI Mission; extrasolar planets; glaciers; ice; light curves; methods; photometry; planets; polar regions; principal components analysis; reflectance; rotation; snowball Earth; spatial distribution; statistical analysis; surface features; variations; wavelength DO - http://dx.doi.org/10.1088/0004-637X/731/1/76 ER - TY - JOUR T1 - Status of satellite precipitation retrievals AN - 874188097; 14810597 AB - Satellites offer an unrivalled vantage point to observe and measure Earth system processes and parameters. Precipitation (rain and snow) in particular, benefit from such observations since precipitation is spatially and temporally highly variable and with satellites overcoming some of the deficiencies of conventional gauge and radar measurements. This paper provides an overall review of quantitative precipitation estimation, covering the basis of the satellite systems used in the observation of precipitation, the dissemination and processing of this data, and the generation, availability and validation of these precipitation estimates. A selection of applications utilising these precipitation estimates are then outlined to exemplify the utility of such products. JF - Hydrology and Earth System Sciences AU - Kidd, C AU - Levizzani, V AD - Labortory for Atmospheres, NASA/GSFC, Greenbelt and ESSIC, University of Maryland, College Park, MD, USA Y1 - 2011/04/05/ PY - 2011 DA - 2011 Apr 05 SP - 1109 EP - 1116 PB - European Geosciences Union, c/o E.O.S.T. Strasbourg Cedex 67084 France VL - 15 IS - 4 SN - 1027-5606, 1027-5606 KW - Meteorological & Geoastrophysical Abstracts; Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Remote Sensing KW - Remote sensing KW - Utilities KW - Precipitation estimation KW - Hydrology KW - Hydrologic Data KW - Satellite Technology KW - Snow KW - Precipitation KW - Satellite sensing KW - Reviews KW - Radar KW - Rain KW - AQ 00006:Sewage KW - M2 556:General (556) KW - Q2 09161:General KW - SW 0820:Snow, ice and frost UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/874188097?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrology+and+Earth+System+Sciences&rft.atitle=Status+of+satellite+precipitation+retrievals&rft.au=Kidd%2C+C%3BLevizzani%2C+V&rft.aulast=Kidd&rft.aufirst=C&rft.date=2011-04-05&rft.volume=15&rft.issue=4&rft.spage=1109&rft.isbn=&rft.btitle=&rft.title=Hydrology+and+Earth+System+Sciences&rft.issn=10275606&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-06-01 N1 - Last updated - 2014-05-02 N1 - SubjectsTermNotLitGenreText - Satellite sensing; Snow; Remote sensing; Hydrology; Precipitation estimation; Radar; Precipitation; Remote Sensing; Satellite Technology; Reviews; Rain; Hydrologic Data; Utilities ER - TY - JOUR T1 - Primordial synthesis of amines and amino acids in a 1958 Miller H (sub 2) S-rich spark discharge experiment AN - 1316371862; 2013-024760 AB - Archived samples from a previously unreported 1958 Stanley Miller electric discharge experiment containing hydrogen sulfide (H (sub 2) S) were recently discovered and analyzed using high-performance liquid chromatography and time-of-flight mass spectrometry. We report here the detection and quantification of primary aminecontaining compounds in the original sample residues, which were produced via spark discharge using a gaseous mixture of H (sub 2) S, CH (sub 4) , NH (sub 3) , and CO (sub 2) . A total of 23 amino acids and 4 amines, including 7 organosulfur compounds, were detected in these samples. The major amino acids with chiral centers are racemic within the accuracy of the measurements, indicating that they are not contaminants introduced during sample storage. This experiment marks the first synthesis of sulfur amino acids from spark discharge experiments designed to imitate primordial environments. The relative yield of some amino acids, in particular the isomers of aminobutyric acid, are the highest ever found in a spark discharge experiment. The simulated primordial conditions used by Miller may serve as a model for early volcanic plume chemistry and provide insight to the possible roles such plumes may have played in abiotic organic synthesis. Additionally, the overall abundances of the synthesized amino acids in the presence of H (sub 2) S are very similar to the abundances found in some carbonaceous meteorites, suggesting that H (sub 2) S may have played an important role in prebiotic reactions in early solar system environments. JF - Proceedings of the National Academy of Sciences of the United States of America AU - Parker, Eric T AU - Cleaves, Henderson J AU - Dworkin, Jason P AU - Glavin, Daniel P AU - Callahan, Michael AU - Aubrey, Andrew AU - Lazcano, Antonio AU - Bada, Jeffrey L Y1 - 2011/04/05/ PY - 2011 DA - 2011 Apr 05 SP - 5526 EP - 5531 PB - National Academy of Sciences, Washington, DC VL - 108 IS - 14 SN - 0027-8424, 0027-8424 KW - plumes KW - stony meteorites KW - aliphatic hydrocarbons KW - astrobiology KW - electrical discharge KW - life origin KW - carbon dioxide KW - meteorites KW - laboratory studies KW - amines KW - fluorescence KW - electromagnetic radiation KW - volcanism KW - amino acids KW - synthesis KW - sparks KW - chondrites KW - pH KW - Eh KW - ammonia compound KW - experimental studies KW - methane KW - gaseous phase KW - biochemistry KW - paleoatmosphere KW - liquid chromatograms KW - hydrogen sulfide KW - carbonaceous chondrites KW - alkanes KW - molecular biology KW - ultraviolet radiation KW - organic compounds KW - organic acids KW - chromatograms KW - hydrocarbons KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1316371862?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.atitle=Primordial+synthesis+of+amines+and+amino+acids+in+a+1958+Miller+H+%28sub+2%29+S-rich+spark+discharge+experiment&rft.au=Parker%2C+Eric+T%3BCleaves%2C+Henderson+J%3BDworkin%2C+Jason+P%3BGlavin%2C+Daniel+P%3BCallahan%2C+Michael%3BAubrey%2C+Andrew%3BLazcano%2C+Antonio%3BBada%2C+Jeffrey+L&rft.aulast=Parker&rft.aufirst=Eric&rft.date=2011-04-05&rft.volume=108&rft.issue=14&rft.spage=5526&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.issn=00278424&rft_id=info:doi/10.1073%2Fpnas.1019191108 L2 - http://www.pnas.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2013-01-01 N1 - Number of references - 40 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2013-03-14 N1 - CODEN - PNASA6 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; amines; amino acids; ammonia compound; astrobiology; biochemistry; carbon dioxide; carbonaceous chondrites; chondrites; chromatograms; Eh; electrical discharge; electromagnetic radiation; experimental studies; fluorescence; gaseous phase; hydrocarbons; hydrogen sulfide; laboratory studies; life origin; liquid chromatograms; meteorites; methane; molecular biology; organic acids; organic compounds; paleoatmosphere; pH; plumes; sparks; stony meteorites; synthesis; ultraviolet radiation; volcanism DO - http://dx.doi.org/10.1073/pnas.1019191108 ER - TY - CPAPER T1 - Ionizing radiation can enhance TGF? induced EMT: Investigation of signatures of cross-talk with the ATM pathway T2 - 102nd Annual Meeting of the American Association for Cancer Research AN - 1313074504; 6095634 JF - 102nd Annual Meeting of the American Association for Cancer Research AU - Wang, Minli AU - Hada, Megumi AU - Pluth, Janice AU - Anderson, Jennifer AU - O'Neill, Peter AU - Cucinotta, Francis Y1 - 2011/04/02/ PY - 2011 DA - 2011 Apr 02 KW - Ionizing radiation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313074504?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=102nd+Annual+Meeting+of+the+American+Association+for+Cancer+Research&rft.atitle=Ionizing+radiation+can+enhance+TGF%3F+induced+EMT%3A+Investigation+of+signatures+of+cross-talk+with+the+ATM+pathway&rft.au=Wang%2C+Minli%3BHada%2C+Megumi%3BPluth%2C+Janice%3BAnderson%2C+Jennifer%3BO%27Neill%2C+Peter%3BCucinotta%2C+Francis&rft.aulast=Wang&rft.aufirst=Minli&rft.date=2011-04-02&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=102nd+Annual+Meeting+of+the+American+Association+for+Cancer+Research&rft.issn=&rft_id=info:doi/ L2 - http://www.aacr.org/home/scientists/meetings--workshops/aacr-annual-meeting-2012/previous-annual-meetings/annual-meeting-2011/program.aspx#AM2011_prog_details LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - A Mixed Exponential Distribution Model for Retrieving Ground Flash Fraction from Satellite Lightning Imager Data AN - 902372303; 15792088 AB - A Bayesian inversion method is introduced for retrieving the fraction of ground flashes in a set of flashes observed from a (low earth orbiting or geostationary) satellite lightning imager. The method employs a constrained mixed exponential distribution model to describe the lightning optical measurements. Because the method also retrieves certain population statistics of ground and cloud flash optical properties, the method can be applied to an arbitrary geographical region, including those regions where the lightning optical statistics either are not known or are difficult to obtain. The approach is tested by performing simulated retrievals, and retrieval error statistics are provided. A first-attempt retrieval of the global geographical distribution of ground flash fraction is obtained using the 5-yr Optical Transient Detector (OTD) dataset; the spatially averaged ground flash fraction over the global-scale domain studied was 0.151 with a standard deviation of 0.081. The ability to retrieve ground flash fraction has important benefits to the atmospheric chemistry community. For example, using the method to partition the existing OTD/Lightning Imaging Sensor (LIS) satellite global lightning climatology into separate ground and cloud flash climatologies would improve estimates of regional and global lightning nitrogen oxides (NO sub(x)) production; this, in turn, would improve both regional air quality and global chemistry/climate model predictions. JF - Journal of Atmospheric and Oceanic Technology AU - Koshak, W J AD - NASA Marshall Space Flight Center, Huntsville, Alabama Y1 - 2011/04// PY - 2011 DA - Apr 2011 SP - 475 EP - 492 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 28 IS - 4 SN - 0739-0572, 0739-0572 KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Lightning KW - Satellite observations KW - Bayesian methods KW - Algorithms KW - Optical properties KW - Geographical distribution KW - Optical properties of clouds KW - Remote sensing KW - Statistical analysis KW - Air quality KW - Climatology KW - Marine KW - Atmospheric pollution KW - Climate KW - Nitrogen oxides KW - Satellites KW - Geostationary satellites KW - Inversions KW - Clouds KW - Satellite sensing KW - lightning KW - Photochemicals KW - Atmospheric chemistry KW - Nitrogen compounds KW - Oxides KW - Q2 09223:Optical properties KW - O 2090:Instruments/Methods KW - P 0000:AIR POLLUTION KW - M2 551.581:Latitudinal Influences (551.581) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/902372303?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Atmospheric+and+Oceanic+Technology&rft.atitle=A+Mixed+Exponential+Distribution+Model+for+Retrieving+Ground+Flash+Fraction+from+Satellite+Lightning+Imager+Data&rft.au=Koshak%2C+W+J&rft.aulast=Koshak&rft.aufirst=W&rft.date=2011-04-01&rft.volume=28&rft.issue=4&rft.spage=475&rft.isbn=&rft.btitle=&rft.title=Journal+of+Atmospheric+and+Oceanic+Technology&rft.issn=07390572&rft_id=info:doi/10.1175%2F2010JTECHA1438.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Number of references - 15 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Satellite sensing; Geographical distribution; Lightning; Optical properties; Atmospheric chemistry; Climatology; Nitrogen compounds; Inversions; Oxides; Clouds; Optical properties of clouds; Atmospheric pollution; Statistical analysis; Air quality; Geostationary satellites; lightning; Photochemicals; Climate; Remote sensing; Nitrogen oxides; Satellites; Marine DO - http://dx.doi.org/10.1175/2010JTECHA1438.1 ER - TY - JOUR T1 - Gait training improves performance in healthy adults exposed to novel sensory discordant conditions AN - 893270714; 14458309 AB - Recent evidence shows that the ability to adapt to a novel discordant sensorimotor environment can be increased through prior training. We aimed to determine whether gait adaptability could be increased and then retained using a training system comprised of a treadmill placed on a motion base facing a virtual visual scene that provided a variety of sensory challenges that served as training modalities. Ten healthy adults participated in three training sessions during which they walked on a treadmill at 1.1m/s while receiving discordant support-surface and visual manipulations. Upon completion, participants were presented with a novel sensorimotor challenge designed to test for transfer of adaptive skills. During this test, stride frequency, reaction time, and heart rate data were collected as measures of postural stability, cognitive load, and anxiety, respectively. Compared to 10 untrained controls, trained participants showed enhanced overall performance on the Novel Test, which was administered 20min after their final training session. Subjects in both groups had greater stride frequency, reaction time, and heart rate when exposed to the new sensory environment; however, these increases were less pronounced in the trained subjects than in the controls. The Novel Test was re-administered to both groups 1week, 1month, 3months, and 6months later. Trained subjects maintained their level of performance for 6months. Untrained subjects continued to improve in these measures at each subsequent test session, suggesting that a lasting sensorimotor adaptability training effect can be achieved with very short, repeated exposures to discordant sensory conditions. JF - Experimental Brain Research AU - Batson, Crystal D AU - Brady, Rachel A AU - Peters, Brian T AU - Ploutz-Snyder, Robert J AU - Mulavara, Ajitkumar P AU - Cohen, Helen S AU - Bloomberg, Jacob J AD - MEI Technologies, Inc., 2525 Bay Area Blvd., Suite 300, Houston, TX, 77058, USA, crystal.d.audas@nasa.gov Y1 - 2011/04// PY - 2011 DA - Apr 2011 SP - 515 EP - 524 PB - Springer-Verlag, Heidelberger Platz 3 Berlin 14197 Germany VL - 209 IS - 4 SN - 0014-4819, 0014-4819 KW - Physical Education Index; CSA Neurosciences Abstracts KW - Adaptability KW - Adults KW - Anxiety KW - Brain KW - Cognitive ability KW - Data processing KW - Gait KW - Health KW - Heart rate KW - Performance KW - Posture KW - Reaction time KW - Reaction time task KW - Treadmill ergometry KW - Work load KW - gait KW - sensorimotor system KW - PE 100:Kinesiology KW - N3 11001:Behavioral and Cognitive Neuroscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/893270714?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aphysicaleducation&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Experimental+Brain+Research&rft.atitle=Gait+training+improves+performance+in+healthy+adults+exposed+to+novel+sensory+discordant+conditions&rft.au=Batson%2C+Crystal+D%3BBrady%2C+Rachel+A%3BPeters%2C+Brian+T%3BPloutz-Snyder%2C+Robert+J%3BMulavara%2C+Ajitkumar+P%3BCohen%2C+Helen+S%3BBloomberg%2C+Jacob+J&rft.aulast=Batson&rft.aufirst=Crystal&rft.date=2011-04-01&rft.volume=209&rft.issue=4&rft.spage=515&rft.isbn=&rft.btitle=&rft.title=Experimental+Brain+Research&rft.issn=00144819&rft_id=info:doi/10.1007%2Fs00221-011-2574-6 LA - English DB - Physical Education Index N1 - Date revised - 2011-09-01 N1 - Last updated - 2012-08-24 N1 - SubjectsTermNotLitGenreText - Reaction time; Heart rate; Brain; Work load; Health; Adults; Performance; Gait; Treadmill ergometry; sensorimotor system; Adaptability; Data processing; Anxiety; Cognitive ability; Reaction time task; gait; Posture DO - http://dx.doi.org/10.1007/s00221-011-2574-6 ER - TY - JOUR T1 - Resetting, errorchrons and the meaning of canonical CAI initial (super 26) Al/ (super 27) Al values AN - 881456602; 2011-066116 AB - The difference between the precise MC-ICPMS analyses of bulk calcium-aluminum-rich inclusion (CAI) fragments (e.g., Jacobsen et al., 2008) and supra-canonical values obtained by micro-analytical techniques, e.g., laser ablation MC-ICPMS (Young et al., 2005) and SIMS (Taylor et al., 2005), at face value seems to be problematic and therefore leads many to dismiss claims of the solar system ( (super 26) Al/ (super 27) Al) (sub 0) greater than approximately 5X10 (super -5) as spurious. Here we use mass balance calculations to quantify the importance of open system isotopic exchange during CAI evolution and show that in situ supra-canonical, in-situ canonical, and bulk canonical measurements can all exist for an individual CAI. The calculations describe mechanisms of isotopic exchange that may have occurred early (100'ska) and late ( approximately 1.5 Ma) in the solar nebula and much later (>10'sMa) on parent body planetesimals. A range of possible modal mineralogies is modeled in order to populate the compositional space defined by in situ and bulk CAI measurements. In support of these simulated data we describe in situ measurements of (super 27) Al/ (super 24) Mg, (super 25) Mg/ (super 24) Mg, and (super 26) Mg/ (super 24) Mg obtained by LA-MC-ICPMS comprising core-to-rim traverses across three CV3 CAIs. The CAIs exhibit distinctive Mg isotopic zoning profiles and varying abundances of daughter products of the short-lived nuclide (super 26) Al that are consistent with varying amounts of open system isotope exchange. JF - Earth and Planetary Science Letters AU - Simon, Justin I AU - Young, Edward D Y1 - 2011/04// PY - 2011 DA - April 2011 SP - 468 EP - 482 PB - Elsevier, Amsterdam VL - 304 IS - 3-4 SN - 0012-821X, 0012-821X KW - canonical ratio KW - magnesium KW - isotopes KW - calcium-aluminum inclusions KW - mass spectra KW - simulation KW - protoplanetary disk KW - stable isotopes KW - temperature KW - radioactive isotopes KW - melting KW - errors KW - chronology KW - open systems KW - Mg-25/Mg-24 KW - mass balance KW - aluminum KW - inclusions KW - Al-27/Al-26 KW - spectra KW - zoning KW - solar system KW - alkaline earth metals KW - in situ KW - condensation KW - isotope ratios KW - cosmochemistry KW - isochrons KW - solar nebula KW - ICP mass spectra KW - Mg-26/Mg-24 KW - metals KW - chemical fractionation KW - 04:Extraterrestrial geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881456602?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=Resetting%2C+errorchrons+and+the+meaning+of+canonical+CAI+initial+%28super+26%29+Al%2F+%28super+27%29+Al+values&rft.au=Simon%2C+Justin+I%3BYoung%2C+Edward+D&rft.aulast=Simon&rft.aufirst=Justin&rft.date=2011-04-01&rft.volume=304&rft.issue=3-4&rft.spage=468&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2011.02.023 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 60 N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - Al-27/Al-26; alkaline earth metals; aluminum; calcium-aluminum inclusions; canonical ratio; chemical fractionation; chronology; condensation; cosmochemistry; errors; ICP mass spectra; in situ; inclusions; isochrons; isotope ratios; isotopes; magnesium; mass balance; mass spectra; melting; metals; Mg-25/Mg-24; Mg-26/Mg-24; open systems; protoplanetary disk; radioactive isotopes; simulation; solar nebula; solar system; spectra; stable isotopes; temperature; zoning DO - http://dx.doi.org/10.1016/j.epsl.2011.02.023 ER - TY - JOUR T1 - Experimental determination of the metal/silicate partition coefficient of germanium; implications for core and mantle differentiation AN - 881456466; 2011-066108 AB - Germanium is a moderately siderophile, and volatile element that exhibits a depletion in Earth's mantle and other planetary and asteroidal basalts (relative to chondritic values). Attempts to explain these depletions have not been satisfactory, but there have also been too few experimental studies to constrain the chemical behavior of Ge. Experimental data have been challenging due to difficulties in analyzing the low (1 to 100 ppm) concentrations of Ge in silicate melts. In this study we examine the role of temperature and silicate melt composition in controlling the value of D(Ge) metal/silicate, by carrying out new experiments at high temperature and pressure. The experimental glasses were analyzed using laser-ablation ICP-MS, which can detect levels of Ge much lower than possible with the electron microprobe. Our new results show that D(Ge) metal/silicate decreases with increasing temperature over the range from 1500 to 1900 degrees C. Additionally, changing silicate melt composition from basalt to peridotite causes a small increase in D(Ge) metal/silicate, compared to the decrease observed in previous studies across a different range of melt composition. These results, combined with previous studies at higher pressures and with S-bearing metallic liquids, show that there are high PT conditions at which the Ge concentration Earth's primitive upper mantle can be explained through metal-silicate equilibrium in a magma ocean stage, where equilibration took place at 40 (+ or -4) GPa and 3200 (+ or -200) degrees C. Additionally, estimated Ge contents of the lunar, Martian and HED parent body mantles can be explained by magma ocean conditions in all of these bodies early in the solar system. These calculations all take into account both the volatile and siderophile nature of Ge. JF - Earth and Planetary Science Letters AU - Righter, Kevin AU - King, Christina AU - Danielson, L AU - Pando, K AU - Lee, C T Y1 - 2011/04// PY - 2011 DA - April 2011 SP - 379 EP - 388 PB - Elsevier, Amsterdam VL - 304 IS - 3-4 SN - 0012-821X, 0012-821X KW - stony meteorites KW - oxygen KW - asteroids KW - igneous rocks KW - mantle KW - Mars KW - melts KW - fugacity KW - electron probe data KW - meteorites KW - plutonic rocks KW - volatile elements KW - depletion KW - P-T conditions KW - upper mantle KW - magma oceans KW - experimental studies KW - Earth KW - Vesta Asteroid KW - Moon KW - silicate melts KW - parent bodies KW - HED meteorites KW - differentiation KW - siderophile elements KW - equilibrium KW - achondrites KW - ultramafics KW - terrestrial planets KW - planets KW - partition coefficients KW - metals KW - germanium KW - peridotites KW - core KW - 18:Solid-earth geophysics KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881456466?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=Experimental+determination+of+the+metal%2Fsilicate+partition+coefficient+of+germanium%3B+implications+for+core+and+mantle+differentiation&rft.au=Righter%2C+Kevin%3BKing%2C+Christina%3BDanielson%2C+L%3BPando%2C+K%3BLee%2C+C+T&rft.aulast=Righter&rft.aufirst=Kevin&rft.date=2011-04-01&rft.volume=304&rft.issue=3-4&rft.spage=379&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2011.02.015 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 77 N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Supplementary data available in online version N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - achondrites; asteroids; core; depletion; differentiation; Earth; electron probe data; equilibrium; experimental studies; fugacity; germanium; HED meteorites; igneous rocks; magma oceans; mantle; Mars; melts; metals; meteorites; Moon; oxygen; P-T conditions; parent bodies; partition coefficients; peridotites; planets; plutonic rocks; siderophile elements; silicate melts; stony meteorites; terrestrial planets; ultramafics; upper mantle; Vesta Asteroid; volatile elements DO - http://dx.doi.org/10.1016/j.epsl.2011.02.015 ER - TY - JOUR T1 - Complex magmatic and impact history prior to 4.1 Ga recorded in zircon from Apollo 17 South Massif aphanitic breccia 73235 AN - 881455415; 2011-064228 AB - Sample 73235 is one of several aphanitic impact melt breccias collected by the Apollo 17 mission at stations 2 and 3 on the slopes of the South Massif. This study presents a detailed investigation of internal structures and U-Pb ages of large zircon grains from this breccia sample. New data combined with the results of previous studies of zircon grains from the same location indicate that most zircon clasts in breccias from stations 2 and 3 formed during multiple magmatic events between 4.37 and 4.31 Ga, although the oldest zircon crystallized at about 4.42 Ga and the youngest at 4.21 Ga. In addition, zircons from the aphanitic breccias record several impact events prior to the approximately 3.9 Ga Late Heavy Bombardment. The results indicate that the zircons probably crystallized at different locations within the Procellarum KREEEP Terrane and were later excavated and modified by several impacts and delivered to the same locality within separate ejecta blankets. This locality became a source of material that formed the aphanitic impact melt breccias of the South Massif during a approximately 3.9 Ga impact. However, the zircons, showing old impact features, are not modified by this approximately 3.9 Ga impact event suggesting that (i) this common source area was located at the periphery of excavation cavity, and (ii) the > 3.9Ga ages recorded by the zircon grains could date large (basin-forming) events as significant as major later ( approximately 3.9 Ga) collisions such as Imbrium and Serenitatis. JF - Geochimica et Cosmochimica Acta AU - Grange, M L AU - Nemchin, A A AU - Timms, N AU - Pidgeon, R T AU - Meyer, C Y1 - 2011/04// PY - 2011 DA - April 2011 SP - 2213 EP - 2232 PB - Elsevier, New York, NY VL - 75 IS - 8 SN - 0016-7037, 0016-7037 KW - silicates KW - U/Pb KW - ion probe data KW - impact features KW - mass spectra KW - Apollo Program KW - Mare Serenitatis KW - dates KW - metamorphic rocks KW - orthosilicates KW - absolute age KW - Archean KW - spectra KW - aphanitic texture KW - zircon group KW - petrology KW - breccia KW - Precambrian KW - impactites KW - Moon KW - textures KW - magmatism KW - Lunar South Massif KW - Taurus-Littrow KW - zircon KW - impact breccia KW - impacts KW - nesosilicates KW - KREEP KW - intrusions KW - SHRIMP data KW - SEM data KW - Apollo 17 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881455415?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Complex+magmatic+and+impact+history+prior+to+4.1+Ga+recorded+in+zircon+from+Apollo+17+South+Massif+aphanitic+breccia+73235&rft.au=Grange%2C+M+L%3BNemchin%2C+A+A%3BTimms%2C+N%3BPidgeon%2C+R+T%3BMeyer%2C+C&rft.aulast=Grange&rft.aufirst=M&rft.date=2011-04-01&rft.volume=75&rft.issue=8&rft.spage=2213&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2011.01.036 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 57 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - absolute age; aphanitic texture; Apollo 17; Apollo Program; Archean; breccia; dates; impact breccia; impact features; impactites; impacts; intrusions; ion probe data; KREEP; Lunar South Massif; magmatism; Mare Serenitatis; mass spectra; metamorphic rocks; Moon; nesosilicates; orthosilicates; petrology; Precambrian; SEM data; SHRIMP data; silicates; spectra; Taurus-Littrow; textures; U/Pb; zircon; zircon group DO - http://dx.doi.org/10.1016/j.gca.2011.01.036 ER - TY - JOUR T1 - A large sedimentary basin in the Terra Sirenum region of the southern highlands of Mars AN - 881455401; 2011-064411 JF - Icarus AU - Davila, Alfonso F AU - Gross, Chirstoph AU - Marzo, Giuseppe A AU - Fairen, Alberto G AU - Kneissl, Thomas AU - McKay, Christopher P AU - Dohm, James Y1 - 2011/04// PY - 2011 DA - April 2011 SP - 579 EP - 589 PB - Elsevier, New York, NY VL - 212 IS - 2 SN - 0019-1035, 0019-1035 KW - silicates KW - Noachian KW - impact features KW - sedimentary basins KW - Mars KW - size distribution KW - hydrologic cycle KW - topography KW - sedimentary rocks KW - basins KW - Terra Sirenum KW - spectra KW - hydrology KW - chemically precipitated rocks KW - statistical analysis KW - channels KW - highlands KW - evaporites KW - depth KW - terrestrial planets KW - planets KW - evaporation KW - sheet silicates KW - impact craters KW - geomorphology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881455401?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=A+large+sedimentary+basin+in+the+Terra+Sirenum+region+of+the+southern+highlands+of+Mars&rft.au=Davila%2C+Alfonso+F%3BGross%2C+Chirstoph%3BMarzo%2C+Giuseppe+A%3BFairen%2C+Alberto+G%3BKneissl%2C+Thomas%3BMcKay%2C+Christopher+P%3BDohm%2C+James&rft.aulast=Davila&rft.aufirst=Alfonso&rft.date=2011-04-01&rft.volume=212&rft.issue=2&rft.spage=579&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2010.12.023 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 58 N1 - PubXState - NY N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - basins; channels; chemically precipitated rocks; depth; evaporation; evaporites; geomorphology; highlands; hydrologic cycle; hydrology; impact craters; impact features; Mars; Noachian; planets; sedimentary basins; sedimentary rocks; sheet silicates; silicates; size distribution; spectra; statistical analysis; Terra Sirenum; terrestrial planets; topography DO - http://dx.doi.org/10.1016/j.icarus.2010.12.023 ER - TY - JOUR T1 - An exogenic world? AN - 881453703; 2011-064420 JF - Icarus AU - Moore, Jeffrey M AU - Pappalardo, Robert T Y1 - 2011/04// PY - 2011 DA - April 2011 SP - 790 EP - 806 PB - Elsevier, New York, NY VL - 212 IS - 2 SN - 0019-1035, 0019-1035 KW - eolian features KW - lacustrine features KW - icy satellites KW - impact features KW - orbits KW - tidal heating KW - landforms KW - Galilean satellites KW - thermal history KW - Cassini-Huygens Mission KW - SAR KW - Hotei Regio KW - mass movements KW - Titan Satellite KW - interplanetary comparison KW - exogene processes KW - tectonics KW - satellites KW - Ganesa macula KW - cryovolcanism KW - atmosphere KW - convection KW - Callisto Satellite KW - Tortola facula KW - planetary interiors KW - fluvial features KW - impact craters KW - landscapes KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881453703?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=An+exogenic+world%3F&rft.au=Moore%2C+Jeffrey+M%3BPappalardo%2C+Robert+T&rft.aulast=Moore&rft.aufirst=Jeffrey&rft.date=2011-04-01&rft.volume=212&rft.issue=2&rft.spage=790&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2011.01.019 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 147 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - atmosphere; Callisto Satellite; Cassini-Huygens Mission; convection; cryovolcanism; eolian features; exogene processes; fluvial features; Galilean satellites; Ganesa macula; Hotei Regio; icy satellites; impact craters; impact features; interplanetary comparison; lacustrine features; landforms; landscapes; mass movements; orbits; planetary interiors; SAR; satellites; tectonics; thermal history; tidal heating; Titan Satellite; Tortola facula DO - http://dx.doi.org/10.1016/j.icarus.2011.01.019 ER - TY - JOUR T1 - Effectiveness of hemodialysis in a case of severe valproate overdose AN - 878535100 AB - A case of severe sodium valproate overdose is presented in which medicinal management failed to reverse coma of the patient. High-flux hemodialysis was then used to eliminate sodium valproate. This case demonstrated the effectiveness of hemodialysis in not only decreasing valproate levels very rapidly but also as an effective anti-coma management. JF - Indian Journal of Critical Care Medicine AU - Nasa, Prashant AU - Sehrawat, Deepak AU - Kansal, Sudha AU - Chawla, Rajesh Y1 - 2011///Apr-Jun PY - 2011 DA - Apr-Jun 2011 SP - 120 EP - 122 CY - Mumbai PB - Medknow Publications & Media Pvt. Ltd. VL - 15 IS - 2 SN - 09725229 KW - Medical Sciences KW - Drug therapy KW - Blood pressure KW - Molecular weight KW - Bipolar disorder KW - Ammonia KW - Toxicity KW - Binding sites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/878535100?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthcompleteshell&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Indian+Journal+of+Critical+Care+Medicine&rft.atitle=Effectiveness+of+hemodialysis+in+a+case+of+severe+valproate+overdose&rft.au=Nasa%2C+Prashant%3BSehrawat%2C+Deepak%3BKansal%2C+Sudha%3BChawla%2C+Rajesh&rft.aulast=Nasa&rft.aufirst=Prashant&rft.date=2011-04-01&rft.volume=15&rft.issue=2&rft.spage=120&rft.isbn=&rft.btitle=&rft.title=Indian+Journal+of+Critical+Care+Medicine&rft.issn=09725229&rft_id=info:doi/10.4103%2F0972-5229.83020 LA - English DB - ProQuest Central N1 - Copyright - Copyright Medknow Publications & Media Pvt Ltd Apr-Jun 2011 N1 - Last updated - 2016-06-11 DO - http://dx.doi.org/10.4103/0972-5229.83020 ER - TY - JOUR T1 - Life-threatening postpartum hemolysis, elevated liver functions tests, low platelets syndrome versus thrombocytopenic purpura - Therapeutic plasma exchange is the answer AN - 878534825 AB - The differential diagnosis of life-threatening microangiopathic disorders in a postpartum female includes severe preeclampsia-eclampsia, hemolysis, elevated liver functions tests, low platelets syndrome and thrombotic thrombocytopenic purpura. There is considerable overlapping in the clinical and laboratory findings between these conditions, and hence an exact diagnosis may not be always possible. However, there is considerable maternal mortality and morbidity associated with these disorders. This case underlines the complexity of pregnancy-related microangiopathies regarding their differential diagnosis, multiple organ dysfunction and role of therapeutic plasma exchange in their management. JF - Indian Journal of Critical Care Medicine AU - Nasa, Prashant AU - Dua, J AU - Kansal, Sudha AU - Chadha, Geeta AU - Chawla, Rajesh AU - Manchanda, Manav Y1 - 2011///Apr-Jun PY - 2011 DA - Apr-Jun 2011 SP - 126 EP - 129 CY - Mumbai PB - Medknow Publications & Media Pvt. Ltd. VL - 15 IS - 2 SN - 09725229 KW - Medical Sciences KW - Drug therapy KW - Preeclampsia KW - Dopamine KW - Blood platelets KW - Molecular weight KW - Plasma KW - Hypertension KW - Ventilation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/878534825?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthcompleteshell&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Indian+Journal+of+Critical+Care+Medicine&rft.atitle=Life-threatening+postpartum+hemolysis%2C+elevated+liver+functions+tests%2C+low+platelets+syndrome+versus+thrombocytopenic+purpura+-+Therapeutic+plasma+exchange+is+the+answer&rft.au=Nasa%2C+Prashant%3BDua%2C+J%3BKansal%2C+Sudha%3BChadha%2C+Geeta%3BChawla%2C+Rajesh%3BManchanda%2C+Manav&rft.aulast=Nasa&rft.aufirst=Prashant&rft.date=2011-04-01&rft.volume=15&rft.issue=2&rft.spage=126&rft.isbn=&rft.btitle=&rft.title=Indian+Journal+of+Critical+Care+Medicine&rft.issn=09725229&rft_id=info:doi/10.4103%2F0972-5229.83016 LA - English DB - ProQuest Central N1 - Copyright - Copyright Medknow Publications & Media Pvt Ltd Apr-Jun 2011 N1 - Last updated - 2016-06-11 DO - http://dx.doi.org/10.4103/0972-5229.83016 ER - TY - JOUR T1 - A Vast Machine: Computer Models, Climate Data, and the Politics of Global Warming AN - 876233073; 14874543 JF - Environmental Health Perspectives AU - Chen, Robert S AD - Robert S. Chen directs CIESIN, an interdisciplinary research center in Columbia University's Earth Institute. A geographer, he manages the NASA Socioeconomic Data and Applications Center, co-leads the IPCC Data Distribution Centre, and is active in international data sharing and preservation initiatives. He staffed many early National Research Council climate change reports Y1 - 2011/04// PY - 2011 DA - April 2011 SP - A182 PB - US Government Printing Office, Superintendent of Documents, P.O. Box 371954 Pittsburgh PA 15250-7954 USA VL - 119 IS - 4 SN - 0091-6765, 0091-6765 KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts; Environment Abstracts; Sustainability Science Abstracts KW - Climate models KW - Computer models KW - Politics KW - Climate change KW - computer models KW - Global warming KW - Greenhouse effect KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development KW - M2 551.588:Environmental Influences (551.588) KW - ENA 20:Weather Modification & Geophysical Change UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/876233073?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Health+Perspectives&rft.atitle=A+Vast+Machine%3A+Computer+Models%2C+Climate+Data%2C+and+the+Politics+of+Global+Warming&rft.au=Chen%2C+Robert+S&rft.aulast=Chen&rft.aufirst=Robert&rft.date=2011-04-01&rft.volume=119&rft.issue=4&rft.spage=A182&rft.isbn=&rft.btitle=&rft.title=Environmental+Health+Perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-07-01 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Climate models; Computer models; Global warming; Politics; Climate change; computer models; Greenhouse effect ER - TY - JOUR T1 - Prediction of metal-silicate partition coefficients for siderophile elements; an update and assessment of PT conditions for metal-silicate equilibrium during accretion of the Earth AN - 875011989; 2011-054836 AB - Experimental studies of the partitioning of siderophile elements between metallic and silicate liquids have provided fundamental constraints on the early history and differentiation conditions of the Earth. With many new studies even in the last 20 yr, several models have emerged from the results, including low pressure equilibrium, high pressure equilibrium, and combined high and low pressure multi-stage models. The reasons -- silicate melt composition, pressure effects on silicate melt structure, different methods for calculating metal activity coefficients, and the role of deep mantle phases -- for the multitude of resulting models have not been specifically addressed before, yet are critical in evaluating the more likely and realistic models. The four reasons leading to the divergence of results will be discussed and evaluated. The behavior of the moderately siderophile elements Ni and Co will be compared using several approaches, each of which results in the same conclusion for Ni and Co. This consistency will eliminate the supposition that one or the other approaches gives a more accurate answer for element partitioning. Newly updated expressions for 11 elements are then derived and presented and applied to the early Earth to evaluate the idea of a late stage equilibration between a core forming metal and silicate melt (or magma ocean). It is possible to explain all 11 elements at conditions of 27-33 GPa, 3300-3600 K, Delta IW=-1, for peridotite and a metallic liquid containing 10% of a light element. The main difference between the current result and several other recent modeling efforts is that Mn, V, and Cr are hosted in deep mantle phases as well as the core. The other elements -- Ni, Co, Mo, W, P, Cu, Ga, and Pd -- are hosted in core, and detailed modeling here shows the importance of accounting for oxygen fugacity, silicate and metallic liquid compositions, as well as temperature and pressure. The idea of late stage metal-silicate equilibrium at a restricted pressure and temperature range leaving a chemical finger print on the upper mantle remains viable. JF - Earth and Planetary Science Letters AU - Righter, K Y1 - 2011/04// PY - 2011 DA - April 2011 SP - 158 EP - 167 PB - Elsevier, Amsterdam VL - 304 IS - 1-2 SN - 0012-821X, 0012-821X KW - silicates KW - oxygen KW - cobalt KW - refractory materials KW - mantle KW - melts KW - fugacity KW - partitioning KW - mass balance KW - P-T conditions KW - upper mantle KW - magma oceans KW - experimental studies KW - Earth KW - accretion KW - pressure KW - silicate melts KW - statistical analysis KW - siderophile elements KW - equilibrium KW - metallic melts KW - partition coefficients KW - metals KW - nickel KW - primitive upper mantle KW - core KW - regression analysis KW - 18:Solid-earth geophysics KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/875011989?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=Prediction+of+metal-silicate+partition+coefficients+for+siderophile+elements%3B+an+update+and+assessment+of+PT+conditions+for+metal-silicate+equilibrium+during+accretion+of+the+Earth&rft.au=Righter%2C+K&rft.aulast=Righter&rft.aufirst=K&rft.date=2011-04-01&rft.volume=304&rft.issue=1-2&rft.spage=158&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2011.01.028 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 84 N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Supplementary data available in online version N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - accretion; cobalt; core; Earth; equilibrium; experimental studies; fugacity; magma oceans; mantle; mass balance; melts; metallic melts; metals; nickel; oxygen; P-T conditions; partition coefficients; partitioning; pressure; primitive upper mantle; refractory materials; regression analysis; siderophile elements; silicate melts; silicates; statistical analysis; upper mantle DO - http://dx.doi.org/10.1016/j.epsl.2011.01.028 ER - TY - JOUR T1 - Multidisciplinary approach of the hyperarid desert of Pampas de La Joya in southern Peru as a new Mars-like soil analog AN - 872120698; 2011-051992 AB - The distribution of living organisms, organic matter, and chemical properties in Mars-like environments on Earth can be used as a model to guide the investigation of possible habitable environments on Mars. This work aims to demonstrate that the place known informally as the "Mar de Cuarzo" (Sea of Quartz) in the Pampas de La Joya desert southern Peru (between 16 degrees S and 17 degrees S latitude), contains soils with characteristics similar to those found on the Martian surface. Using a multidisciplinary approach, we studied the environmental data, geology, organic matter content, oxidant activity, and microbiology of this area. Our data show that (1) Mar de Cuarzo is a hyper arid area with a lower concentration of organic matter than those found in the Mars-like soils from Yungay area (Atacama Desert in Chile), while at the same time having, comparable extreme environmental conditions, and very low levels of microorganisms. (2) The detrital components of the soils come essentially from the Andean volcanic chain and local outcrops of Precambrian gneisses and Cretaceous granitic batholiths. (3) The presence of microclimates, geomorphological features, and the high influence of the "El Nino Southern Oscillation (ENSO)" allowed the formation of exotic and heterogeneous chemical deposits in these soils, including iron oxides, sulfates, and other evaporites. (4) Thermal volatilization in these soils (using methods similar to the Viking and Phoenix instruments) shows high oxidant activity. (5) Labeled release experiment (similar to the Viking instrument) shows high degradation of nutrients added in these soils. Altogether, the Mar de Cuarzo area in the Pampas de La Joya is an interesting place for astrobiological studies as a new analog to Mars, and for comparative analyses with other hyperarid analogs as Yungay. JF - Geochimica et Cosmochimica Acta AU - Valdivia-Silva, Julio E AU - Navarro-Gonzalez, Rafael AU - Ortega-Gutierrez, Fernando AU - Fletcher, Lauren E AU - Perez-Montano, Saul AU - Condori-Apaza, Renee AU - McKay, Christopher P Y1 - 2011/04// PY - 2011 DA - April 2011 SP - 1975 EP - 1991 PB - Elsevier, New York, NY VL - 75 IS - 7 SN - 0016-7037, 0016-7037 KW - eolian features KW - southern Peru KW - terrestrial environment KW - Mars KW - Mar de Cuarzo KW - ecosystems KW - Chile KW - terrestrial analogs KW - deserts KW - climate change KW - volatilization KW - El Nino Southern Oscillation KW - Atacama Desert KW - carbon KW - crystalline rocks KW - chemical properties KW - Peru KW - organic carbon KW - meteorology KW - geochemistry KW - Yungay Chile KW - pH KW - climate KW - soils KW - bedrock KW - Andes KW - pedogenesis KW - experimental studies KW - biochemistry KW - arid environment KW - cosmochemistry KW - terrestrial planets KW - planets KW - habitat KW - South America KW - physical properties KW - organic compounds KW - Arequipa Peru KW - Pampas de La Joya Desert KW - Atacama Chile KW - 04:Extraterrestrial geology KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/872120698?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Multidisciplinary+approach+of+the+hyperarid+desert+of+Pampas+de+La+Joya+in+southern+Peru+as+a+new+Mars-like+soil+analog&rft.au=Valdivia-Silva%2C+Julio+E%3BNavarro-Gonzalez%2C+Rafael%3BOrtega-Gutierrez%2C+Fernando%3BFletcher%2C+Lauren+E%3BPerez-Montano%2C+Saul%3BCondori-Apaza%2C+Renee%3BMcKay%2C+Christopher+P&rft.aulast=Valdivia-Silva&rft.aufirst=Julio&rft.date=2011-04-01&rft.volume=75&rft.issue=7&rft.spage=1975&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2011.01.017 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 93 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - Andes; Arequipa Peru; arid environment; Atacama Chile; Atacama Desert; bedrock; biochemistry; carbon; chemical properties; Chile; climate; climate change; cosmochemistry; crystalline rocks; deserts; ecosystems; El Nino Southern Oscillation; eolian features; experimental studies; geochemistry; habitat; Mar de Cuarzo; Mars; meteorology; organic carbon; organic compounds; Pampas de La Joya Desert; pedogenesis; Peru; pH; physical properties; planets; soils; South America; southern Peru; terrestrial analogs; terrestrial environment; terrestrial planets; volatilization; Yungay Chile DO - http://dx.doi.org/10.1016/j.gca.2011.01.017 ER - TY - JOUR T1 - Global Land Surface Emissivity Retrieved From Satellite Ultraspectral IR Measurements AN - 867741169; 14585539 AB - Ultraspectral resolution infrared (IR) radiances obtained from nadir observations provide information about the atmosphere, surface, aerosols, and clouds. Surface spectral emissivity (SSE) and surface skin temperature from current and future operational satellites can and will reveal critical information about the Earth's ecosystem and land-surface-type properties, which might be utilized as a means of long-term monitoring of the Earth's environment and global climate change. In this study, fast radiative transfer models applied to the atmosphere under all weather conditions are used for atmospheric profile and surface or cloud parameter retrieval from ultraspectral and/or hyperspectral spaceborne IR soundings. An inversion scheme, dealing with cloudy as well as cloud-free radiances observed with ultraspectral IR sounders, has been developed to simultaneously retrieve atmospheric thermodynamic and surface or cloud microphysical parameters. This inversion scheme has been applied to the Infrared Atmospheric Sounding Interferometer (IASI). Rapidly produced SSE is initially evaluated through quality control checks on the retrievals of other impacted surface and atmospheric parameters. Initial validation of retrieved emissivity spectra is conducted with Namib and Kalahari desert laboratory measurements. Seasonal products of global land SSE and surface skin temperature retrieved with IASI are presented to demonstrate seasonal variation of SSE. JF - IEEE Transactions on Geoscience and Remote Sensing AU - Zhou, Daniel K AU - Larar, Allen M AU - Liu, Xu AU - Smith, William L AU - Strow, LLarrabee AU - Yang, Ping AU - Schlussel, Peter AU - Calbet, Xavier AD - NASA Langley Research Center, Hampton, USA Y1 - 2011/04// PY - 2011 DA - Apr 2011 SP - 1277 EP - 1290 PB - Institute of Electrical and Electronics Engineers, Inc., 345 E. 47th St. NY NY 10017-2394 USA VL - 49 IS - 4 SN - 0196-2892, 0196-2892 KW - Sustainability Science Abstracts KW - Clouds KW - Skin KW - Inversion KW - Remote sensing KW - Temperature KW - Seasonal variations KW - Satellites KW - Atmosphere KW - emissivity KW - Botswana, Kalahari Desert KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/867741169?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IEEE+Transactions+on+Geoscience+and+Remote+Sensing&rft.atitle=Global+Land+Surface+Emissivity+Retrieved+From+Satellite+Ultraspectral+IR+Measurements&rft.au=Zhou%2C+Daniel+K%3BLarar%2C+Allen+M%3BLiu%2C+Xu%3BSmith%2C+William+L%3BStrow%2C+LLarrabee%3BYang%2C+Ping%3BSchlussel%2C+Peter%3BCalbet%2C+Xavier&rft.aulast=Zhou&rft.aufirst=Daniel&rft.date=2011-04-01&rft.volume=49&rft.issue=4&rft.spage=1277&rft.isbn=&rft.btitle=&rft.title=IEEE+Transactions+on+Geoscience+and+Remote+Sensing&rft.issn=01962892&rft_id=info:doi/10.1109%2FTGRS.2010.2051036 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-05-01 N1 - Last updated - 2015-06-12 N1 - SubjectsTermNotLitGenreText - Clouds; Skin; Inversion; Temperature; Remote sensing; Atmosphere; Satellites; Seasonal variations; emissivity; Botswana, Kalahari Desert DO - http://dx.doi.org/10.1109/TGRS.2010.2051036 ER - TY - JOUR T1 - Investigation of phase transition-based tethered systems for small body sample capture AN - 860380298; 14365104 AB - This paper summarizes the modeling, simulation, and testing work related to the development of technology to investigate the potential that shape memory actuation has to provide mechanically simple and affordable solutions for delivering assets to a surface and for sample capture and possible return to Earth. We investigate the structural dynamics and controllability aspects of an adaptive beam carrying an end-effector which, by changing material equilibrium phases, is able to actively decouple the end-effector dynamics from the spacecraft dynamics during the surface contact phase. Asset delivery and sample capture and return are at the heart of several emerging potential missions to small bodies, such as asteroids and comets, and to the surface of large bodies, such as Titan. JF - Acta Astronautica AU - Quadrelli, Marco B AU - Backes, Paul AU - Wilkie, WKeats AU - Giersch, Lou AU - Quijano, Ubaldo AU - Keim, Jason AU - Scharf, Daniel AU - Mukherjee, Rudranarayan AU - Bradford, SCase AU - McKee, Michael AD - Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Mail Stop 198-326, Pasadena, CA 91109-8099, USA, Marco.B.Quadrelli@jpl.nasa.gov Y1 - 2011/04// PY - 2011 DA - Apr 2011 SP - 947 EP - 973 PB - Elsevier B.V., The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl] VL - 68 IS - 7-8 SN - 0094-5765, 0094-5765 KW - Health & Safety Science Abstracts; Meteorological & Geoastrophysical Abstracts KW - Planetary sample capture KW - Tethered systems KW - Distributed control KW - Adaptive structures KW - Robotic manipulation KW - Phase transition KW - Shape memory KW - Asteroids KW - Numerical simulations KW - Simulation KW - Spacecraft KW - Comets KW - Technology KW - H 2000:Transportation KW - M2 523.64:Comets (523.64) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/860380298?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Acta+Astronautica&rft.atitle=Investigation+of+phase+transition-based+tethered+systems+for+small+body+sample+capture&rft.au=Quadrelli%2C+Marco+B%3BBackes%2C+Paul%3BWilkie%2C+WKeats%3BGiersch%2C+Lou%3BQuijano%2C+Ubaldo%3BKeim%2C+Jason%3BScharf%2C+Daniel%3BMukherjee%2C+Rudranarayan%3BBradford%2C+SCase%3BMcKee%2C+Michael&rft.aulast=Quadrelli&rft.aufirst=Marco&rft.date=2011-04-01&rft.volume=68&rft.issue=7-8&rft.spage=947&rft.isbn=&rft.btitle=&rft.title=Acta+Astronautica&rft.issn=00945765&rft_id=info:doi/10.1016%2Fj.actaastro.2010.08.040 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Numerical simulations; Asteroids; Comets; Simulation; Spacecraft; Technology DO - http://dx.doi.org/10.1016/j.actaastro.2010.08.040 ER - TY - JOUR T1 - Structural health management technologies for inflatable/deployable structures: Integrating sensing and self-healing AN - 860376012; 14365108 AB - Inflatable/deployable structures are under consideration as habitats for future Lunar surface science operations. The use of non-traditional structural materials combined with the need to maintain a safe working environment for extended periods in a harsh environment has led to the consideration of an integrated structural health management system for future habitats, to ensure their integrity. This article describes recent efforts to develop prototype sensing technologies and new self-healing materials that address the unique requirements of habitats comprised mainly of soft goods. A new approach to detecting impact damage is discussed, using addressable flexible capacitive sensing elements and thin film electronics in a matrixed array. Also, the use of passive wireless sensor tags for distributed sensing is discussed, wherein the need for on-board power through batteries or hardwired interconnects is eliminated. Finally, the development of a novel, microencapuslated self-healing elastomer with applications for inflatable/deployable habitats is reviewed. JF - Acta Astronautica AU - Brandon, Erik J AU - Vozoff, Max AU - Kolawa, Elizabeth A AU - Studor, George F AU - Lyons, Frankel AU - Keller, Michael W AU - Beiermann, Brett AU - White, Scott R AU - Sottos, Nancy R AU - Curry, Mark A AU - Banks, David L AU - Brocato, Robert AU - Zhou, Lisong AU - Jung, Soyoun AU - Jackson, Thomas N AU - Champaigne, Kevin AD - NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA Y1 - 2011/04// PY - 2011 DA - Apr 2011 SP - 883 EP - 903 PB - Elsevier B.V., The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl] VL - 68 IS - 7-8 SN - 0094-5765, 0094-5765 KW - Health & Safety Science Abstracts; Meteorological & Geoastrophysical Abstracts KW - Inflatable structures KW - Deployable structures KW - Distributed sensing KW - Structural health monitoring KW - Self-repairing materials KW - Batteries KW - Sensors KW - Lunar surface KW - Reviews KW - prototypes KW - Habitat KW - Environment management KW - working conditions KW - Technology KW - M2 523.3:Earth-Moon System (523.3) KW - H 15000:Civil/Structural Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/860376012?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Acta+Astronautica&rft.atitle=Structural+health+management+technologies+for+inflatable%2Fdeployable+structures%3A+Integrating+sensing+and+self-healing&rft.au=Brandon%2C+Erik+J%3BVozoff%2C+Max%3BKolawa%2C+Elizabeth+A%3BStudor%2C+George+F%3BLyons%2C+Frankel%3BKeller%2C+Michael+W%3BBeiermann%2C+Brett%3BWhite%2C+Scott+R%3BSottos%2C+Nancy+R%3BCurry%2C+Mark+A%3BBanks%2C+David+L%3BBrocato%2C+Robert%3BZhou%2C+Lisong%3BJung%2C+Soyoun%3BJackson%2C+Thomas+N%3BChampaigne%2C+Kevin&rft.aulast=Brandon&rft.aufirst=Erik&rft.date=2011-04-01&rft.volume=68&rft.issue=7-8&rft.spage=883&rft.isbn=&rft.btitle=&rft.title=Acta+Astronautica&rft.issn=00945765&rft_id=info:doi/10.1016%2Fj.actaastro.2010.08.016 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - Lunar surface; Sensors; Batteries; prototypes; Reviews; Habitat; Environment management; working conditions; Technology DO - http://dx.doi.org/10.1016/j.actaastro.2010.08.016 ER - TY - JOUR T1 - Did evolution select a nonrandom "alphabet" of amino acids? AN - 1752576441; 2016-002436 JF - Astrobiology AU - Philip, Gayle K AU - Freeland, Stephen J Y1 - 2011/04// PY - 2011 DA - April 2011 SP - 235 EP - 240 PB - Mary Ann Liebert, Larchmont, NY VL - 11 IS - 3 SN - 1531-1074, 1531-1074 KW - metabolism KW - biochemistry KW - prebiotic chemistry KW - astrobiology KW - biologic evolution KW - molecular biology KW - life origin KW - genetics KW - organic compounds KW - organic acids KW - amino acids KW - synthesis KW - proteins KW - polymers KW - hydrophobic materials KW - 08:General paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1752576441?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrobiology&rft.atitle=Did+evolution+select+a+nonrandom+%22alphabet%22+of+amino+acids%3F&rft.au=Philip%2C+Gayle+K%3BFreeland%2C+Stephen+J&rft.aulast=Philip&rft.aufirst=Gayle&rft.date=2011-04-01&rft.volume=11&rft.issue=3&rft.spage=235&rft.isbn=&rft.btitle=&rft.title=Astrobiology&rft.issn=15311074&rft_id=info:doi/10.1089%2Fast.2010.0567 L2 - http://www.liebertpub.com/publication.aspx?pub_id=99 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 21 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2015-12-31 N1 - SubjectsTermNotLitGenreText - amino acids; astrobiology; biochemistry; biologic evolution; genetics; hydrophobic materials; life origin; metabolism; molecular biology; organic acids; organic compounds; polymers; prebiotic chemistry; proteins; synthesis DO - http://dx.doi.org/10.1089/ast.2010.0567 ER - TY - JOUR T1 - ExploreNEOs; III, Physical characterization of 65 potential spacecraft target asteroids AN - 1553088964; 2014-063046 AB - Space missions to near-Earth objects (NEOs) are being planned at all major space agencies, and recently a manned mission to an NEO was announced as a NASA goal. Efforts to find and select suitable targets (plus backup targets) are severely hampered by our lack of knowledge of the physical properties of dynamically favorable NEOs. In particular, current mission scenarios tend to favor primitive low-albedo objects. For the vast majority of NEOs, the albedo is unknown. Here we report new constraints on the size and albedo of 65 NEOs with rendezvous Delta v <7 km s (super -1) . Our results are based on thermal-IR flux data obtained in the framework of our ongoing (2009-2011) ExploreNEOs survey using NASA's "Warm-Spitzer" space telescope. As of 2010 July 14, we have results for 293 objects in hand (including the 65 low-Delta v NEOs presented here); before the end of 2011, we expect to have measured the size and albedo of approximately 700 NEOs (including probably approximately 160 low-Delta v NEOs). While there are reasons to believe that primitive volatile-rich materials are universally low in albedo, the converse need not be true: the orbital evolution of some dark objects likely has caused them to lose their volatiles by coming too close to the Sun. For all our targets, we give the closest perihelion distance they are likely to have reached (using orbital integrations from Marchi et al. 2009) and corresponding upper limits on the past surface temperature. Low-Delta v objects for which both albedo and thermal history may suggest a primitive composition include (162998) 2001 SK162, (68372) 2001 PM9, and (100085) 1992 UY4. Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The Astronomical Journal (New York) AU - Mueller, Michael AU - Delbo, M AU - Hora, J L AU - Trilling, D E AU - Bhattacharya, B AU - Bottke, W F AU - Chesley, Steven R AU - Emery, J P AU - Fazio, G AU - Harris, A W AU - Mainzer, A AU - Mommert, M AU - Penprase, B AU - Smith, H A AU - Spahr, T B AU - Stansberry, J A AU - Thomas, C A Y1 - 2011/04/01/ PY - 2011 DA - 2011 Apr 01 EP - Citation 109 PB - IOP Publishing for American Institute of Physics, Bristol VL - 141 IS - 4 SN - 0004-6256, 0004-6256 KW - albedo KW - ExploreNEOs Program KW - asteroids KW - near-Earth asteroids KW - orbits KW - thermal history KW - temperature KW - infrared spectra KW - photometry KW - spacecraft KW - composition KW - spectra KW - uncertainty KW - space missions KW - near-Earth objects KW - telescope methods KW - Spitzer Space Telescope KW - Monte Carlo analysis KW - statistical analysis KW - size KW - volatiles KW - physical properties KW - planning KW - surveys KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1553088964?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Astronomical+Journal+%28New+York%29&rft.atitle=ExploreNEOs%3B+III%2C+Physical+characterization+of+65+potential+spacecraft+target+asteroids&rft.au=Mueller%2C+Michael%3BDelbo%2C+M%3BHora%2C+J+L%3BTrilling%2C+D+E%3BBhattacharya%2C+B%3BBottke%2C+W+F%3BChesley%2C+Steven+R%3BEmery%2C+J+P%3BFazio%2C+G%3BHarris%2C+A+W%3BMainzer%2C+A%3BMommert%2C+M%3BPenprase%2C+B%3BSmith%2C+H+A%3BSpahr%2C+T+B%3BStansberry%2C+J+A%3BThomas%2C+C+A&rft.aulast=Mueller&rft.aufirst=Michael&rft.date=2011-04-01&rft.volume=141&rft.issue=4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+Astronomical+Journal+%28New+York%29&rft.issn=00046256&rft_id=info:doi/10.1088%2F0004-6256%2F141%2F4%2F109 L2 - http://www.iop.org/EJ/journal/aj LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 49 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2014-08-14 N1 - SubjectsTermNotLitGenreText - albedo; asteroids; composition; ExploreNEOs Program; infrared spectra; Monte Carlo analysis; near-Earth asteroids; near-Earth objects; orbits; photometry; physical properties; planning; size; space missions; spacecraft; spectra; Spitzer Space Telescope; statistical analysis; surveys; telescope methods; temperature; thermal history; uncertainty; volatiles DO - http://dx.doi.org/10.1088/0004-6256/141/4/109 ER - TY - JOUR T1 - Validation of a TRMM-based global flood detection system in Bangladesh AN - 1143509614; 650294-3 JF - International Journal of Applied Earth Observation and Geoinformation AU - Moffitt, Caitlin Balthrop AU - Hossain, Faisal AU - Adler, Robert F AU - Yilmaz, Koray K AU - Pierce, Harold F Y1 - 2011/04// PY - 2011 DA - April 2011 SP - 165 EP - 177 PB - International Institute for Aerial Survey and Earth Sciences, Enschede VL - 13 IS - 2 SN - 1569-8432, 1569-8432 KW - submergence KW - prediction KW - atmospheric precipitation KW - rivers KW - analysis KW - satellite methods KW - Indian Peninsula KW - fluvial features KW - risk assessment KW - Asia KW - Brahmaputra River KW - rain KW - Bangladesh KW - remote sensing KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1143509614?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Applied+Earth+Observation+and+Geoinformation&rft.atitle=Validation+of+a+TRMM-based+global+flood+detection+system+in+Bangladesh&rft.au=Moffitt%2C+Caitlin+Balthrop%3BHossain%2C+Faisal%3BAdler%2C+Robert+F%3BYilmaz%2C+Koray+K%3BPierce%2C+Harold+F&rft.aulast=Moffitt&rft.aufirst=Caitlin&rft.date=2011-04-01&rft.volume=13&rft.issue=2&rft.spage=165&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Applied+Earth+Observation+and+Geoinformation&rft.issn=15698432&rft_id=info:doi/10.1016%2Fj.jag.2010.11.003 L2 - http://www.sciencedirect.com/science/journal/03032434 LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data from Geoline, Bundesanstalt fur Geowissenschaften und Rohstoffe, Hanover, Germany N1 - Number of references - 28 N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - analysis; Asia; atmospheric precipitation; Bangladesh; Brahmaputra River; fluvial features; Indian Peninsula; prediction; rain; remote sensing; risk assessment; rivers; satellite methods; submergence DO - http://dx.doi.org/10.1016/j.jag.2010.11.003 ER - TY - JOUR T1 - Climate, health, agricultural and economic impacts of tighter vehicle-emission standards AN - 1020857162; 16795707 AB - Non-CO sub(2) air pollutants from motor vehicles have traditionally been controlled to protect air quality and health, but also affect climate. We use global composition-climate modelling to examine the integrated impacts of adopting stringent European on-road vehicle-emission standards for these pollutants in 2015 in many developing countries. Relative to no extra controls, the tight standards lead to annual benefits in 2030 and beyond of 120,000-280,000 avoided premature air pollution-related deaths, 6.1-19.7 million metric tons of avoided ozone-related yield losses of major food crops, $US0.6-2.4 trillion avoided health damage and $US1.1-4.3 billion avoided agricultural damage, and mitigation of 0.20 (+0.14/-0.17) degree C of Northern Hemisphere extratropical warming during 2040-2070. Tighter vehicle-emission standards are thus extremely likely to mitigate short-term climate change in most cases, in addition to providing large improvements in human health and food security. These standards will not reduce CO sub(2) emissions, however, which is required to mitigate long-term climate change. JF - Nature Climate Change AU - Shindell, Drew AU - Faluvegi, Greg AU - Walsh, Michael AU - Anenberg, Susan C AU - Van Dingenen, Rita AU - Muller, Nicholas Z AU - Austin, Jeff AU - Koch, Dorothy AU - Milly, George AD - NASA Goddard Institute for Space Studies and Columbia Earth Institute, Columbia University, New York, New York 10025, USA Y1 - 2011/04// PY - 2011 DA - April 2011 SP - 59 EP - 66 PB - Nature Publishing Group, The Macmillan Building London N1 9XW United Kingdom VL - 1 IS - 1 SN - 1758-678X, 1758-678X KW - Pollution Abstracts; Sustainability Science Abstracts KW - Air pollution KW - Mortality KW - Mitigation KW - Economics KW - Climate change KW - Emissions KW - Emission standards KW - Air quality KW - Carbon dioxide KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020857162?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+Climate+Change&rft.atitle=Climate%2C+health%2C+agricultural+and+economic+impacts+of+tighter+vehicle-emission+standards&rft.au=Shindell%2C+Drew%3BFaluvegi%2C+Greg%3BWalsh%2C+Michael%3BAnenberg%2C+Susan+C%3BVan+Dingenen%2C+Rita%3BMuller%2C+Nicholas+Z%3BAustin%2C+Jeff%3BKoch%2C+Dorothy%3BMilly%2C+George&rft.aulast=Shindell&rft.aufirst=Drew&rft.date=2011-04-01&rft.volume=1&rft.issue=1&rft.spage=59&rft.isbn=&rft.btitle=&rft.title=Nature+Climate+Change&rft.issn=1758678X&rft_id=info:doi/10.1038%2Fnclimate1066 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-06-01 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Air pollution; Mortality; Mitigation; Climate change; Economics; Emission standards; Emissions; Air quality; Carbon dioxide DO - http://dx.doi.org/10.1038/nclimate1066 ER - TY - JOUR T1 - Comparison of the transport codes HZETRN, HETC and FLUKA for a solar particle event AN - 1777148458; 14514899 AB - The protection of astronauts and instrumentation from galactic cosmic rays and solar particle events is one of the primary constraints associated with mission planning in low earth orbit or deep space. To help satisfy this constraint, several computational tools have been developed to analyze the effectiveness of various shielding materials and structures exposed to space radiation. These tools are now being carefully scrutinized through a systematic effort of verification, validation, and uncertainty quantification. In this benchmark study, the deterministic transport code HZETRN is compared to the Monte Carlo transport codes HETC-HEDS and FLUKA for a 30g/cm2 water target protected by a 20g/cm2 aluminum shield exposed to a parameterization of the February 1956 solar particle event. Neutron and proton fluences as well as dose and dose equivalent are compared at various depths in the water target. The regions of agreement and disagreement between the three codes are quantified and discussed, and recommendations for future work are given. JF - Advances in Space Research AU - Heinbockel, John H AU - Slaba, Tony C AU - Blattnig, Steve R AU - Tripathi, Ram K AU - Townsend, Lawrence W AU - Handler, Thomas AU - Gabriel, Tony A AU - Pinsky, Lawrence S AU - Reddell, Brandon AU - Clowdsley, Martha S AU - Singleterry, Robert C AU - Norbury, John W AU - Badavi, Francis F AU - Aghara, Sukesh K AD - Department of Mathematics and Statistics, Old Dominion University, 5115 Hampton Blvd., Norfolk, VA 23529, USA john.w.norbury@nasa.gov john.w.norbury@nasa.gov john.w.norbury@nasa.gov john.w.norbury@nasa.gov john.w.norbury@nasa.gov Y1 - 2011/03/15/ PY - 2011 DA - 2011 Mar 15 SP - 1079 EP - 1088 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 47 IS - 6 SN - 0273-1177, 0273-1177 KW - Environmental Engineering Abstracts (EN); Aerospace & High Technology Database (AH) KW - Space radiation KW - Transport codes KW - Solar particle event KW - Low earth orbits KW - Instrumentation KW - Astronauts KW - Monte Carlo methods KW - Transport KW - Exposure KW - Aluminum KW - Deep space KW - Parametrization UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777148458?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Space+Research&rft.atitle=Comparison+of+the+transport+codes+HZETRN%2C+HETC+and+FLUKA+for+a+solar+particle+event&rft.au=Heinbockel%2C+John+H%3BSlaba%2C+Tony+C%3BBlattnig%2C+Steve+R%3BTripathi%2C+Ram+K%3BTownsend%2C+Lawrence+W%3BHandler%2C+Thomas%3BGabriel%2C+Tony+A%3BPinsky%2C+Lawrence+S%3BReddell%2C+Brandon%3BClowdsley%2C+Martha+S%3BSingleterry%2C+Robert+C%3BNorbury%2C+John+W%3BBadavi%2C+Francis+F%3BAghara%2C+Sukesh+K&rft.aulast=Heinbockel&rft.aufirst=John&rft.date=2011-03-15&rft.volume=47&rft.issue=6&rft.spage=1079&rft.isbn=&rft.btitle=&rft.title=Advances+in+Space+Research&rft.issn=02731177&rft_id=info:doi/10.1016%2Fj.asr.2010.11.012 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-06-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.asr.2010.11.012 ER - TY - CPAPER T1 - Timescale Correlation Between Marine Atmospheric Exposure and Accelerated Corrosion Testing T2 - 66th Annual Meeting of the National Association of Corrosion Engineering (CORROSION 2011) AN - 1313009904; 6044712 JF - 66th Annual Meeting of the National Association of Corrosion Engineering (CORROSION 2011) AU - Montgomery, Eliza AU - Curran, Jerome AU - Calle, Luz AU - Kolody, Mark Y1 - 2011/03/13/ PY - 2011 DA - 2011 Mar 13 KW - Corrosion KW - Air-sea interaction UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313009904?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=66th+Annual+Meeting+of+the+National+Association+of+Corrosion+Engineering+%28CORROSION+2011%29&rft.atitle=Timescale+Correlation+Between+Marine+Atmospheric+Exposure+and+Accelerated+Corrosion+Testing&rft.au=Montgomery%2C+Eliza%3BCurran%2C+Jerome%3BCalle%2C+Luz%3BKolody%2C+Mark&rft.aulast=Montgomery&rft.aufirst=Eliza&rft.date=2011-03-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=66th+Annual+Meeting+of+the+National+Association+of+Corrosion+Engineering+%28CORROSION+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://nace.confex.com/nace/2011/webprogram/meeting.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - The 2009-2010 Arctic polar stratospheric cloud season: a CALIPSO perspective AN - 874180857; 14822253 AB - Spaceborne lidar measurements from CALIPSO (Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations) are used to provide a vortex-wide perspective of the 2009-2010 Arctic PSC (polar stratospheric cloud) season to complement more focused measurements from the European Union RECONCILE (reconciliation of essential process parameters for an enhanced predictability of Arctic stratospheric ozone loss and its climate interactions) field campaign. The 2009-2010 Arctic winter was unusually cold at stratospheric levels from mid-December 2009 until the end of January 2010, and was one of only a few winters from the past fifty-two years with synoptic-scale regions of temperatures below the frost point. More PSCs were observed by CALIPSO during the 2009-2010 Arctic winter than in the previous three Arctic seasons combined. In particular, there were significantly more observations of high number density NAT (nitric acid trihydrate) mixtures (referred to as Mix 2-enh) and ice PSCs. We found that the 2009-2010 season could roughly be divided into four periods with distinctly different PSC optical characteristics. The early season (15-30 December 2009) was characterized by patchy, tenuous PSCs, primarily low number density liquid/NAT mixtures. No ice clouds were observed by CALIPSO during this early phase, suggesting that these early season NAT clouds were formed through a non-ice nucleation mechanism. The second phase of the season (31 December 2009-14 January 2010) was characterized by frequent mountain wave ice clouds that nucleated widespread NAT particles throughout the vortex, including Mix 2-enh. The third phase of the season (15-21 January 2010) was characterized by synoptic-scale temperatures below the frost point which led to a rare outbreak of widespread ice clouds. The fourth phase of the season (22-28 January) was characterized by a major stratospheric warming that distorted the vortex, displacing the cold pool from the vortex center. This final phase was dominated by STS (supercooled ternary solution) PSCs, although NAT particles may have been present in low number densities, but were masked by the more abundant STS droplets at colder temperatures. We also found distinct variations in the relative proportion of PSCs in each composition class with altitude over the course of the 2009-2010 Arctic season. Lower number density liquid/NAT mixtures were most frequently observed in the lower altitude regions of the clouds (below ~18-20 km), which is consistent with CALIPSO observations in the Antarctic. Higher number density liquid/NAT mixtures, especially Mix 2-enh, were most frequently observed at altitudes above 18-20 km, primarily downstream of wave ice clouds. This pattern is consistent with the conceptual model whereby low number density, large NAT particles are precipitated from higher number density NAT clouds (i.e. mother clouds) that are nucleated downstream of mountain wave ice clouds. JF - Atmospheric Chemistry and Physics AU - Pitts, M C AU - Poole, L R AU - Doernbrack, A AU - Thomason, L W AD - NASA Langley Research Center, Hampton, Virginia, 23681, USA Y1 - 2011/03/10/ PY - 2011 DA - 2011 Mar 10 SP - 2161 EP - 2177 PB - European Geophysical Society, Max-Planck-Str. 13 Katlenburg-Lindau Germany VL - 11 IS - 5 SN - 1680-7316, 1680-7316 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Mountain waves KW - Vortexes KW - Lee waves KW - Mountains KW - Nucleation KW - Altitude KW - Predictability KW - Spaceborne lidar KW - Waves KW - Downstream KW - Seasonal variability KW - Ice clouds KW - Polar stratospheric clouds KW - Arctic KW - Ozone KW - Density KW - Frost KW - Climate KW - Temperature KW - Nitric acids KW - PN, Arctic KW - Clouds KW - European Union KW - Atmospheric chemistry KW - LIDAR KW - SW 5010:Network design KW - Q2 09223:Optical properties KW - M2 551.510.42:Air Pollution (551.510.42) KW - AQ 00006:Sewage UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/874180857?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Chemistry+and+Physics&rft.atitle=The+2009-2010+Arctic+polar+stratospheric+cloud+season%3A+a+CALIPSO+perspective&rft.au=Pitts%2C+M+C%3BPoole%2C+L+R%3BDoernbrack%2C+A%3BThomason%2C+L+W&rft.aulast=Pitts&rft.aufirst=M&rft.date=2011-03-10&rft.volume=11&rft.issue=5&rft.spage=2161&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics&rft.issn=16807316&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-06-01 N1 - Last updated - 2016-04-29 N1 - SubjectsTermNotLitGenreText - Climate; Atmospheric chemistry; Nitric acids; LIDAR; Lee waves; Ozone; Nucleation; Clouds; Predictability; Mountain waves; Spaceborne lidar; Ice clouds; Seasonal variability; Polar stratospheric clouds; Vortexes; Mountains; Altitude; Density; Frost; Temperature; Downstream; Waves; Arctic; PN, Arctic; European Union ER - TY - JOUR T1 - Ice and dust in the quiescent medium of isolated dense cores AN - 1416689915; 2013-060082 AB - The relation between ices in the envelopes and disks surrounding young stellar objects (YSOs) and those in the quiescent interstellar medium (ISM) is investigated. For a sample of 31 stars behind isolated dense cores, ground-based and Spitzer spectra and photometry in the 1-25 mu m wavelength range are combined. The baseline for the broad and overlapping ice features is modeled, using calculated spectra of giants, H (sub 2) O ice and silicates. The adopted extinction curve is derived empirically. Its high resolution allows for the separation of continuum and feature extinction. The extinction between 13 and 25 mu m is approximately 50% relative to that at 2.2 mu m. The strengths of the 6.0 and 6.85 mu m absorption bands are in line with those of YSOs. Thus, their carriers, which, besides H (sub 2) O and CH (sub 3) OH, may include NH (super +) (sub 4) , HCOOH, H (sub 2) CO, and NH (sub 3) , are readily formed in the dense core phase, before stars form. The 3.53 mu m C-H stretching mode of solid CH (sub 3) OH was discovered. The CH (sub 3) OH/H (sub 2) O abundance ratios of 5%-12% are larger than upper limits in the Taurus molecular cloud. The initial ice composition, before star formation occurs, therefore depends on the environment. Signs of thermal and energetic processing that were found toward some YSOs are absent in the ices toward background stars. Finally, the peak optical depth of the 9.7 mu m band of silicates relative to the continuum extinction at 2.2 mu m is significantly shallower than in the diffuse ISM. This extends the results of Chiar et al. to a larger sample and higher extinctions. Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The = Astrophysical Journal AU - Boogert, A C A AU - Huard, T L AU - Cook, A M AU - Chiar, J E AU - Knez, C AU - Decin, L AU - Blake, G A AU - Tielens, A G G M AU - van Dishoeck, E F Y1 - 2011/03/10/ PY - 2011 DA - 2011 Mar 10 EP - paper 92 PB - University of Chicago Press for the American Astronomical Society, Chicago, IL VL - 729 IS - 2 SN - 0004-637X, 0004-637X KW - water KW - silicates KW - ammonium KW - Taurus molecular cloud KW - Spitzer Space Telescope KW - formaldehyde KW - cosmochemistry KW - methanol KW - photometry KW - organic compounds KW - cosmic dust KW - stars KW - ice KW - alcohols KW - extinction KW - spectra KW - optical depth KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1416689915?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+%3D+Astrophysical+Journal&rft.atitle=Ice+and+dust+in+the+quiescent+medium+of+isolated+dense+cores&rft.au=Boogert%2C+A+C+A%3BHuard%2C+T+L%3BCook%2C+A+M%3BChiar%2C+J+E%3BKnez%2C+C%3BDecin%2C+L%3BBlake%2C+G+A%3BTielens%2C+A+G+G+M%3Bvan+Dishoeck%2C+E+F&rft.aulast=Boogert&rft.aufirst=A+C&rft.date=2011-03-10&rft.volume=729&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+%3D+Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F729%2F2%2F92 L2 - http://iopscience.iop.org/0004-637X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 67 N1 - PubXState - IL N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2013-08-02 N1 - SubjectsTermNotLitGenreText - alcohols; ammonium; cosmic dust; cosmochemistry; extinction; formaldehyde; ice; methanol; optical depth; organic compounds; photometry; silicates; spectra; Spitzer Space Telescope; stars; Taurus molecular cloud; water DO - http://dx.doi.org/10.1088/0004-637X/729/2/92 ER - TY - JOUR T1 - A combined Subaru/VLT/MMT 1-5 mu m study of planets orbiting HR 8799; implications for atmospheric properties, masses, and formation AN - 1416687086; 2013-060083 AB - We present new 1-1.25 mu m (z and J band) Subaru/IRCS and 2 mu m (K band) VLT/NaCo data for HR 8799 and a re-reduction of the 3-5 mu m MMT/Clio data first presented by Hinz et al. Our VLT/NaCo data yield a detection of a fourth planet at a projected separation of approximately 15 AU-"HR 8799e." We also report new, albeit weak detections of HR 8799b at 1.03 mu m and 3.3 mu m. Empirical comparisons to field brown dwarfs show that at least HR 8799b and HR 8799c, and possibly HR 8799d, have near-to-mid-IR colors/magnitudes significantly discrepant from the L/T dwarf sequence. Standard cloud deck atmosphere models appropriate for brown dwarfs provide only (marginally) statistically meaningful fits to HR 8799b and c for physically implausible small radii. Models with thicker cloud layers not present in brown dwarfs reproduce the planets' spectral energy distributions far more accurately and without the need for rescaling the planets' radii. Our preliminary modeling suggests that HR 8799b has log(g)=4-4.5, T (sub eff) =900 K, while HR 8799c, d, and (by inference) e have log(g)=4-4.5, T (sub eff) =1000-1200 K. Combining results from planet evolution models and new dynamical stability limits implies that the masses of HR 8799b, c, d, and e are 6-7 M (sub J) , 7-10 M (sub J) , 7-10 M (sub J) , and 7-10 M (sub J) . "Patchy" cloud prescriptions may provide even better fits to the data and may lower the estimated surface gravities and masses. Finally, contrary to some recent claims, forming the HR 8799 planets by core accretion is still plausible, although such systems are likely rare. Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The = Astrophysical Journal AU - Currie, Thayne AU - Burrows, Adam AU - Itoh, Yoichi AU - Matsumura, Soko AU - Fukagawa, Misato AU - Apai, Daniel AU - Madhusudhan, Nikku AU - Hinz, Philip M AU - Rodigas, T J AU - Kasper, Markus AU - Pyo, T S AU - Ogino, Satoshi Y1 - 2011/03/10/ PY - 2011 DA - 2011 Mar 10 EP - paper 128 PB - University of Chicago Press for the American Astronomical Society, Chicago, IL VL - 729 IS - 2 SN - 0004-637X, 0004-637X KW - clouds KW - multiple mirror telescope KW - accretion KW - extrasolar planets KW - Subaru Telescope KW - atmosphere KW - models KW - mass KW - planets KW - detection KW - brown dwarfs KW - stars KW - very large telescope KW - HR 8799 Star KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1416687086?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+%3D+Astrophysical+Journal&rft.atitle=A+combined+Subaru%2FVLT%2FMMT+1-5+mu+m+study+of+planets+orbiting+HR+8799%3B+implications+for+atmospheric+properties%2C+masses%2C+and+formation&rft.au=Currie%2C+Thayne%3BBurrows%2C+Adam%3BItoh%2C+Yoichi%3BMatsumura%2C+Soko%3BFukagawa%2C+Misato%3BApai%2C+Daniel%3BMadhusudhan%2C+Nikku%3BHinz%2C+Philip+M%3BRodigas%2C+T+J%3BKasper%2C+Markus%3BPyo%2C+T+S%3BOgino%2C+Satoshi&rft.aulast=Currie&rft.aufirst=Thayne&rft.date=2011-03-10&rft.volume=729&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+%3D+Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F729%2F2%2F128 L2 - http://iopscience.iop.org/0004-637X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 76 N1 - PubXState - IL N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2013-10-17 N1 - SubjectsTermNotLitGenreText - accretion; atmosphere; brown dwarfs; clouds; detection; extrasolar planets; HR 8799 Star; mass; models; multiple mirror telescope; planets; stars; Subaru Telescope; very large telescope DO - http://dx.doi.org/10.1088/0004-637X/729/2/128 ER - TY - JOUR T1 - Views from EPOXI; colors in our solar system as an analog for extrasolar planets AN - 1416686674; 2013-060084 AB - The first visible-light studies of Earth-sized extrasolar planets will employ photometry or low-resolution spectroscopy. This work uses EPOCh medium-band filter photometry between 350 and 950 nm obtained with the Deep Impact (DI) High Resolution Instrument (HRI) of Earth, the Moon, and Mars in addition to previous full-disk observations of the other six solar system planets and Titan to analyze the limitations of using photometric colors to characterize extrasolar planets. We determined that the HRI 350, 550, and 850 nm filters are optimal for distinguishing Earth from the other planets and separating planets to first order based on their atmospheric and surface properties. Detailed conclusions that can be drawn about exoplanet atmospheres simply from a color-color plot are limited due to potentially competing physical processes in the atmosphere. The presence of a Rayleigh scattering atmosphere can be detected by an increase in the 350-550 nm brightness ratio, but the absence of Rayleigh scattering cannot be confirmed due to the existence of atmospheric and surface absorbing species in the UV. Methane and ammonia are the only species responsible for strong absorption in the 850 nm filter in our solar system. The combination of physical processes present on extrasolar planets may differ from those we see locally. Nevertheless, a generation of telescopes capable of collecting such photometric observations can serve a critical role in first-order characterization and constraining the population of Earth-like extrasolar planets. Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The = Astrophysical Journal AU - Crow, Carolyn A AU - McFadden, L A AU - Robinson, T AU - Meadows, Victoria S AU - Livengood, Timothy A AU - Hewagama, T AU - Barry, R K AU - Deming, L D AU - Lisse, C M AU - Wellnitz, Dennis Y1 - 2011/03/10/ PY - 2011 DA - 2011 Mar 10 EP - paper 130 PB - University of Chicago Press for the American Astronomical Society, Chicago, IL VL - 729 IS - 2 SN - 0004-637X, 0004-637X KW - surface properties KW - solar system KW - icy satellites KW - high-resolution methods KW - Earth KW - extrasolar planets KW - Moon KW - optical spectra KW - atmosphere KW - Mars KW - wavelength KW - terrestrial planets KW - brightness KW - planets KW - photometry KW - color KW - Titan Satellite KW - spectra KW - satellites KW - EPOXI Mission KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1416686674?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+%3D+Astrophysical+Journal&rft.atitle=Views+from+EPOXI%3B+colors+in+our+solar+system+as+an+analog+for+extrasolar+planets&rft.au=Crow%2C+Carolyn+A%3BMcFadden%2C+L+A%3BRobinson%2C+T%3BMeadows%2C+Victoria+S%3BLivengood%2C+Timothy+A%3BHewagama%2C+T%3BBarry%2C+R+K%3BDeming%2C+L+D%3BLisse%2C+C+M%3BWellnitz%2C+Dennis&rft.aulast=Crow&rft.aufirst=Carolyn&rft.date=2011-03-10&rft.volume=729&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+%3D+Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F729%2F2%2F130 L2 - http://iopscience.iop.org/0004-637X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 63 N1 - PubXState - IL N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendix N1 - Last updated - 2013-08-02 N1 - SubjectsTermNotLitGenreText - atmosphere; brightness; color; Earth; EPOXI Mission; extrasolar planets; high-resolution methods; icy satellites; Mars; Moon; optical spectra; photometry; planets; satellites; solar system; spectra; surface properties; terrestrial planets; Titan Satellite; wavelength DO - http://dx.doi.org/10.1088/0004-637X/729/2/130 ER - TY - JOUR T1 - First observations of global and seasonal terrestrial chlorophyll fluorescence from space AN - 874183038; 14822362 AB - Remote sensing of terrestrial vegetation fluorescence from space is of interest because it can potentially provide global coverage of the functional status of vegetation. For example, fluorescence observations may provide a means to detect vegetation stress before chlorophyll reductions take place. Although there have been many measurements of fluorescence from ground- and airborne-based instruments, there has been scant information available from satellites. In this work, we use high-spectral resolution data from the Thermal And Near-infrared Sensor for carbon Observation - Fourier Transform Spectrometer (TANSO-FTS) on the Japanese Greenhouse gases Observing SATellite (GOSAT) that is in a sun-synchronous orbit with an equator crossing time near 13:00 LT. We use filling-in of the potassium (K) I solar Fraunhofer line near 770 nm to derive chlorophyll fluorescence and related parameters such as the fluorescence yield at that wavelength. We map these parameters globally for two months (July and December 2009) and show a full seasonal cycle for several different locations, including two in the Amazonia region. We also compare the derived fluorescence information with that provided by the MODIS Enhanced Vegetation Index (EVI). These comparisons show that for several areas these two indices exhibit different seasonality and/or relative intensity variations, and that changes in fluorescence frequently lead those seen in the EVI for those regions. The derived fluorescence therefore provides information that is related to, but independent of the reflectance. JF - Biogeosciences AU - Joiner, J AU - Yoshida, Y AU - Vasilkov, A P AU - Corp, LA AU - Middleton, E M AD - NASA Goddard Space Flight Center, Greenbelt, MD, USA Y1 - 2011/03/08/ PY - 2011 DA - 2011 Mar 08 SP - 637 EP - 651 PB - European Geosciences Union, c/o E.O.S.T. Strasbourg Cedex 67084 France VL - 8 IS - 3 SN - 1726-4170, 1726-4170 KW - Ecology Abstracts KW - Chlorophyll KW - Reflectance KW - Data processing KW - Fluorescence KW - I.R. radiation KW - Remote sensing KW - Stress KW - Vegetation KW - Potassium KW - Satellites KW - Lead KW - Carbon KW - Wavelength KW - Greenhouse gases KW - Seasonal variations KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/874183038?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biogeosciences&rft.atitle=First+observations+of+global+and+seasonal+terrestrial+chlorophyll+fluorescence+from+space&rft.au=Joiner%2C+J%3BYoshida%2C+Y%3BVasilkov%2C+A+P%3BCorp%2C+LA%3BMiddleton%2C+E+M&rft.aulast=Joiner&rft.aufirst=J&rft.date=2011-03-08&rft.volume=8&rft.issue=3&rft.spage=637&rft.isbn=&rft.btitle=&rft.title=Biogeosciences&rft.issn=17264170&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-06-01 N1 - Last updated - 2013-07-26 N1 - SubjectsTermNotLitGenreText - Chlorophyll; I.R. radiation; Fluorescence; Data processing; Reflectance; Remote sensing; Potassium; Vegetation; Stress; Satellites; Lead; Carbon; Wavelength; Greenhouse gases; Seasonal variations ER - TY - JOUR T1 - Ethical issues of unrelated hematopoietic stem cell transplantation in adult thalassemia patients AN - 872132350; 14606505 AB - Beta thalassemia major is a severe inherited form of hemolytic anemia that results from ineffective erythropoiesis. Allogenic hematopoietic stem cell transplantation (HSCT) remains the only potentially curative therapy. Unfortunately, the subgroup of adult thalassemia patients with hepatomegaly, portal fibrosis and a history of irregular iron chelation have an elevated risk for transplantation-related mortality that is currently estimated to be about 29 percent. Thalassemia patients may be faced with a difficult choice: they can either continue conventional transfusion and iron chelation therapy or accept the high mortality risk of HSCT in the hope of obtaining complete recovery. Throughout the decision making process, every effort should be made to sustain and enhance autonomous choice. The concept of conscious consent becomes particularly important. The patient must be made fully aware of the favourable and adverse outcomes of HSCT. Although it is the physician's duty to illustrate the possibility of completely restoring health, considerable emphasis should be put on the adverse effects of the procedure. The physician also needs to decide whether the patient is eligible for HSCT according to the "rule of descending order". The patient must be given full details on self-care and fundamental lifestyle changes and be fully aware that he/she will be partly responsible for the outcome. Only if all the aforesaid conditions are satisfied can it be considered reasonable to propose unrelated HSCT as a potential cure for high risk thalassemia patients. JF - BMC Medical Ethics AU - Caocci, Giovanni AU - La Nasa, Giorgio AU - d'Aloja, Ernesto AU - Vacca, Adriana AU - Piras, Eugenia AU - Pintor, Michela AU - Demontis, Roberto AU - Pisu, Salvatore AD - Department of Forensic Medicine, University of Cagliari, Cagliari, Italy Y1 - 2011/03/08/ PY - 2011 DA - 2011 Mar 08 SP - 4 PB - BioMed Central Ltd., Middlesex House London W1T 4LB UK VL - 12 KW - Risk Abstracts KW - Mortality KW - Historical account KW - anemia KW - Chelation KW - transfusion KW - stem cells KW - Ethics KW - Iron KW - Side effects KW - R2 23060:Medical and environmental health UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/872132350?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=BMC+Medical+Ethics&rft.atitle=Ethical+issues+of+unrelated+hematopoietic+stem+cell+transplantation+in+adult+thalassemia+patients&rft.au=Caocci%2C+Giovanni%3BLa+Nasa%2C+Giorgio%3Bd%27Aloja%2C+Ernesto%3BVacca%2C+Adriana%3BPiras%2C+Eugenia%3BPintor%2C+Michela%3BDemontis%2C+Roberto%3BPisu%2C+Salvatore&rft.aulast=Caocci&rft.aufirst=Giovanni&rft.date=2011-03-08&rft.volume=12&rft.issue=&rft.spage=4&rft.isbn=&rft.btitle=&rft.title=BMC+Medical+Ethics&rft.issn=1472-6939&rft_id=info:doi/10.1186%2F1472-6939-12-4 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-06-01 N1 - Last updated - 2012-03-29 N1 - SubjectsTermNotLitGenreText - Historical account; Mortality; anemia; stem cells; Ethics; Chelation; transfusion; Iron; Side effects DO - http://dx.doi.org/10.1186/1472-6939-12-4 ER - TY - JOUR T1 - Clouds and the Faint Young Sun Paradox AN - 874180921; 14810557 AB - We investigate the role which clouds could play in resolving the Faint Young Sun Paradox (FYSP). Lower solar luminosity in the past means that less energy was absorbed on Earth (a forcing of -50 W m super(-2) during the late Archean), but geological evidence points to the Earth having been at least as warm as it is today, with only very occasional glaciations. We perform radiative calculations on a single global mean atmospheric column. We select a nominal set of three layered, randomly overlapping clouds, which are both consistent with observed cloud climatologies and reproduced the observed global mean energy budget of Earth. By varying the fraction, thickness, height and particle size of these clouds we conduct a wide exploration of how changed clouds could affect climate, thus constraining how clouds could contribute to resolving the FYSP. Low clouds reflect sunlight but have little greenhouse effect. Removing them entirely gives a forcing of +25 W m super(-2) whilst more modest reduction in their efficacy gives a forcing of +10 to +15 W m super(-2). For high clouds, the greenhouse effect dominates. It is possible to generate +50 W m super(-2) forcing from enhancing these, but this requires making them 3.5 times thicker and 14 K colder than the standard high cloud in our nominal set and expanding their coverage to 100% of the sky. Such changes are not credible. More plausible changes would generate no more than +15 W m super(-2) forcing. Thus neither fewer low clouds nor more high clouds can provide enough forcing to resolve the FYSP. Decreased surface albedo can contribute no more than +5 W m super(-2) forcing. Some models which have been applied to the FYSP do not include clouds at all. These overestimate the forcing due to increased CO sub(2) by 20 to 25% when pCO sub(2) is 0.01 to 0.1 bar. JF - Climate of the Past AU - Goldblatt, C AU - Zahnle, K J AD - Space Science and Astrobiology Division, NASA Ames Research Center, MS 245-3, Moffett Field, CA 94035, USA Y1 - 2011/03/04/ PY - 2011 DA - 2011 Mar 04 SP - 203 EP - 220 PB - European Geosciences Union, c/o E.O.S.T. Strasbourg Cedex 67084 France VL - 7 IS - 1 SN - 1814-9324, 1814-9324 KW - Water Resources Abstracts; Aqualine Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts; Pollution Abstracts KW - albedo KW - Climate change KW - Low clouds KW - sun KW - High level clouds KW - Climatology KW - Exploration KW - Geology KW - Cloud climatology KW - Solar energy KW - Particle size KW - Precambrian KW - Albedo KW - Climates KW - Climate KW - Greenhouse effect KW - sunlight KW - Energy budget KW - Greenhouses KW - Clouds KW - Atmospheric forcing KW - Glaciation KW - Global warming KW - Standards KW - Carbon dioxide KW - Q2 09148:Palaeo-studies KW - SW 5010:Network design KW - AQ 00006:Sewage KW - P 0000:AIR POLLUTION KW - M2 551.58:Climatology (551.58) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/874180921?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climate+of+the+Past&rft.atitle=Clouds+and+the+Faint+Young+Sun+Paradox&rft.au=Goldblatt%2C+C%3BZahnle%2C+K+J&rft.aulast=Goldblatt&rft.aufirst=C&rft.date=2011-03-04&rft.volume=7&rft.issue=1&rft.spage=203&rft.isbn=&rft.btitle=&rft.title=Climate+of+the+Past&rft.issn=18149324&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-06-01 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Particle size; Precambrian; Albedo; Atmospheric forcing; Glaciation; Greenhouse effect; Carbon dioxide; Energy budget; Clouds; Global warming; Cloud climatology; Solar energy; Low clouds; High level clouds; albedo; Climate; Geology; sunlight; sun; Climate change; Climates; Exploration; Standards; Climatology; Greenhouses ER - TY - JOUR T1 - Oxygen Isotope Variations at the Margin of a CAI Records Circulation Within the Solar Nebula AN - 1671479278; 14453669 AB - Micrometer-scale analyses of a calcium-, aluminum-rich inclusion (CAI) and the characteristic mineral bands mantling the CAI reveal that the outer parts of this primitive object have a large range of oxygen isotope compositions. The variations are systematic; the relative abundance of 16O first decreases toward the CAI margin, approaching a planetary-like isotopic composition, then shifts to extremely 16O-rich compositions through the surrounding rim. The variability implies that CAIs probably formed from several oxygen reservoirs. The observations support early and short-lived fluctuations of the environment in which CAIs formed, either because of transport of the CAIs themselves to distinct regions of the solar nebula or because of varying gas composition near the proto-Sun. JF - Science (Washington) AU - Simon, Justin I AU - Hutcheon, Ian D AU - Simon, Steven B AU - Matzel, Jennifer EP AU - Ramon, Erick C AU - Weber, Peter K AU - Grossman, Lawrence AU - DePaolo, Donald J AD - Astromaterials Research Office KR111, NASA Johnson Space Center, Houston, TX 77058, USA Y1 - 2011/03/04/ PY - 2011 DA - 2011 Mar 04 SP - 1175 EP - 1178 PB - American Association for the Advancement of Science, 1200 New York Avenue, NW Washington DC 20005 USA VL - 331 IS - 6021 SN - 0036-8075, 0036-8075 KW - Solid State and Superconductivity Abstracts (SO); Environmental Engineering Abstracts (EN) KW - Oxygen isotopes KW - Bands KW - Gas composition KW - Transport KW - Fluctuation KW - Aluminum KW - Circulation KW - Reservoirs UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1671479278?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+%28Washington%29&rft.atitle=Oxygen+Isotope+Variations+at+the+Margin+of+a+CAI+Records+Circulation+Within+the+Solar+Nebula&rft.au=Simon%2C+Justin+I%3BHutcheon%2C+Ian+D%3BSimon%2C+Steven+B%3BMatzel%2C+Jennifer+EP%3BRamon%2C+Erick+C%3BWeber%2C+Peter+K%3BGrossman%2C+Lawrence%3BDePaolo%2C+Donald+J&rft.aulast=Simon&rft.aufirst=Justin&rft.date=2011-03-04&rft.volume=331&rft.issue=6021&rft.spage=1175&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-12-01 N1 - Last updated - 2016-05-18 ER - TY - JOUR T1 - Lifting of the clast by water and ice; an explanation for the trails of the Racetrack and Bonnie Claire Playas AN - 959085707; 2012-032774 AB - The sliding rocks of the Racetrack and Bonnie Claire playas have puzzled researchers for nearly a century. Rock fragments seem to race over a desiccated layer of sediment in the desert of Death Valley, California, leaving only their infamous trails as proof of their enigmatic movement. Interestingly, no one has ever witnessed the movement of these rocks. Furthermore, the mechanism responsible for moving the rocks and creating the trails has not yet been fully explained. A series of observations and measurements of this phenomenon at Racetrack and Bonnie Claire were conducted by NASA's Lunar and Planetary Science Academy interns, and coordinating NASA researchers, in June, 2010. The dolomite and granite rocks have masses ranging from 0.5 kg to 300 kg. The trails are parallel on occasion, but are more commonly chaotic, with some as long as 0.5 km. Each rock has a mound of raised clay on one side and a trail depression on the other. A number of trails have no rocks at the end, with only a mound of solid clay where a rock once could have rested. Analysis of trail width and length measurements has revealed that the trails often widen towards the distal end of the trail. Additionally, some trails are much wider than their associated rock, while others are much narrower. Field observations and measurements of the moisture content and temperature of the sediment point towards a unique mechanism, involving increased buoyancy, and possible rock uplift through a combination of water influx and "ice collar" formation. Additionally, miniature icebergs floating over the playa may have created some trails without rocks, during hydroperiods with ponded water. JF - Abstracts with Programs - Geological Society of America AU - Ryan, Andrew J AU - Kletetschka, Gunther AU - McKinney, Emerald AU - McIntire, Leva AU - Fercana, George AU - Schwebler, Kristopher AU - Romine, Gregory AU - Jackson, Brian AU - Cheung, Cynthia AU - Parsons, Ann AU - Anonymous Y1 - 2011/03// PY - 2011 DA - March 2011 SP - 139 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 1 SN - 0016-7592, 0016-7592 KW - water KW - United States KW - processes KW - California KW - Racetrack Playa KW - Bonnie Claire Playa KW - ice KW - landform evolution KW - Death Valley KW - geomorphology KW - clasts KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959085707?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Lifting+of+the+clast+by+water+and+ice%3B+an+explanation+for+the+trails+of+the+Racetrack+and+Bonnie+Claire+Playas&rft.au=Ryan%2C+Andrew+J%3BKletetschka%2C+Gunther%3BMcKinney%2C+Emerald%3BMcIntire%2C+Leva%3BFercana%2C+George%3BSchwebler%2C+Kristopher%3BRomine%2C+Gregory%3BJackson%2C+Brian%3BCheung%2C+Cynthia%3BParsons%2C+Ann%3BAnonymous&rft.aulast=Ryan&rft.aufirst=Andrew&rft.date=2011-03-01&rft.volume=43&rft.issue=1&rft.spage=139&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Northeastern Section, 46th annual meeting; Geological Society of America, North-Central Section, 45th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Bonnie Claire Playa; California; clasts; Death Valley; geomorphology; ice; landform evolution; processes; Racetrack Playa; United States; water ER - TY - JOUR T1 - The effect of sonic booms on earthquake warning systems AN - 911678837; 2012-006798 JF - Seismological Research Letters AU - Wurman, G AU - Haering, E A, Jr AU - Price, M J AU - Magnani, M Beatrice AU - Langston, Chuck Y1 - 2011/03// PY - 2011 DA - March 2011 SP - 352 PB - Seismological Society of America, El Cerrito, CA VL - 82 IS - 2 SN - 0895-0695, 0895-0695 KW - sonic booms KW - technology KW - warning systems KW - seismicity KW - effects KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911678837?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=The+effect+of+sonic+booms+on+earthquake+warning+systems&rft.au=Wurman%2C+G%3BHaering%2C+E+A%2C+Jr%3BPrice%2C+M+J%3BMagnani%2C+M+Beatrice%3BLangston%2C+Chuck&rft.aulast=Wurman&rft.aufirst=G&rft.date=2011-03-01&rft.volume=82&rft.issue=2&rft.spage=352&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ L2 - http://srl.geoscienceworld.org/ LA - English DB - GeoRef N1 - Conference title - Seismological Society of America 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - CA N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - earthquakes; effects; seismicity; sonic booms; technology; warning systems ER - TY - JOUR T1 - ExploreNEOs; II, The accuracy of the Warm Spitzer near-Earth object survey AN - 890660071; 2011-078912 AB - We report on results of observations of near-Earth objects (NEOs) performed with the NASA Spitzer Space Telescope as part of our ongoing (2009-2011) Warm Spitzer NEO survey ("ExploreNEOs"), the primary aim of which is to provide sizes and albedos of some 700 NEOs. The emphasis of the work described here is an assessment of the overall accuracy of our survey results, which are based on a semi-empirical generalized model of asteroid thermal emission. The NASA Spitzer Space Telescope has been operated in the so-called Warm Spitzer mission phase since the cryogen was depleted in 2009 May, with the two shortest-wavelength channels, centered at 3.6 mu m and 4.5 mu m, of the Infrared Array Camera continuing to provide valuable data. The set of some 170 NEOs in our current Warm Spitzer results catalog contains 28 for which published taxonomic classifications are available, and 14 for which relatively reliable published diameters and albedos are available. A comparison of the Warm Spitzer results with previously published results ("ground truth"), complemented by a Monte Carlo error analysis, indicates that the rms Warm Spitzer diameter and albedo errors are + or -20% and + or -50%, respectively. Cases in which agreement with results from the literature is worse than expected are highlighted and discussed; these include the potential spacecraft target 138911 2001 AE (sub 2) . We confirm that 1.4 appears to be an appropriate overall default value for the relative reflectance between the V band and the Warm Spitzer wavelengths, for use in correction of the Warm Spitzer fluxes for reflected solar radiation. Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The Astronomical Journal (New York) AU - Harris, Alan W AU - Mommert, M AU - Hora, J L AU - Mueller, M AU - Trilling, D E AU - Bhattacharya, B AU - Bottke, W F AU - Chesley, S AU - Delbo, M AU - Emery, J P AU - Fazio, G AU - Mainzer, A AU - Penprase, B AU - Smith, H A AU - Spahr, T B AU - Stansberry, J A AU - Thomas, C A Y1 - 2011/03// PY - 2011 DA - March 2011 EP - Paper No. 75 PB - American Institute of Physics and IOP Publishing, Washington, DC VL - 141 IS - 3 SN - 0004-6256, 0004-6256 KW - albedo KW - ExploreNEOs Program KW - near-Earth objects KW - asteroids KW - Spitzer Space Telescope KW - Monte Carlo analysis KW - statistical analysis KW - data processing KW - solar phase angle KW - size KW - infrared spectra KW - errors KW - ground truth KW - solar radiation KW - thermal emission KW - surveys KW - spectra KW - corrections KW - Warm Spitzer Mission KW - reflectance KW - accuracy KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/890660071?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Astronomical+Journal+%28New+York%29&rft.atitle=ExploreNEOs%3B+II%2C+The+accuracy+of+the+Warm+Spitzer+near-Earth+object+survey&rft.au=Harris%2C+Alan+W%3BMommert%2C+M%3BHora%2C+J+L%3BMueller%2C+M%3BTrilling%2C+D+E%3BBhattacharya%2C+B%3BBottke%2C+W+F%3BChesley%2C+S%3BDelbo%2C+M%3BEmery%2C+J+P%3BFazio%2C+G%3BMainzer%2C+A%3BPenprase%2C+B%3BSmith%2C+H+A%3BSpahr%2C+T+B%3BStansberry%2C+J+A%3BThomas%2C+C+A&rft.aulast=Harris&rft.aufirst=Alan&rft.date=2011-03-01&rft.volume=141&rft.issue=3&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+Astronomical+Journal+%28New+York%29&rft.issn=00046256&rft_id=info:doi/10.1088%2F0004-6256%2F141%2F3%2F75 L2 - http://www.iop.org/EJ/journal/aj LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2011-01-01 N1 - Number of references - 50 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - accuracy; albedo; asteroids; corrections; data processing; errors; ExploreNEOs Program; ground truth; infrared spectra; Monte Carlo analysis; near-Earth objects; reflectance; size; solar phase angle; solar radiation; spectra; Spitzer Space Telescope; statistical analysis; surveys; thermal emission; Warm Spitzer Mission DO - http://dx.doi.org/10.1088/0004-6256/141/3/75 ER - TY - JOUR T1 - Permeability of JSC-1A; a lunar soil simulant AN - 877849572; 2011-058889 JF - Icarus AU - LaMarche, Casey Q AU - Curtis, Jennifer Sinclair AU - Metzger, Philip T Y1 - 2011/03// PY - 2011 DA - March 2011 SP - 383 EP - 389 PB - Elsevier, New York, NY VL - 212 IS - 1 SN - 0019-1035, 0019-1035 KW - physical properties KW - JSC-1A lunar soil simulant KW - bulk density KW - Moon KW - grain size KW - porous materials KW - simulation KW - regolith KW - porosity KW - permeability KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/877849572?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Permeability+of+JSC-1A%3B+a+lunar+soil+simulant&rft.au=LaMarche%2C+Casey+Q%3BCurtis%2C+Jennifer+Sinclair%3BMetzger%2C+Philip+T&rft.aulast=LaMarche&rft.aufirst=Casey&rft.date=2011-03-01&rft.volume=212&rft.issue=1&rft.spage=383&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2010.12.015 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 34 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - bulk density; grain size; JSC-1A lunar soil simulant; lunar soils; Moon; permeability; physical properties; porosity; porous materials; regolith; simulation DO - http://dx.doi.org/10.1016/j.icarus.2010.12.015 ER - TY - JOUR T1 - Mineralogical characterization of near-Earth asteroid (1036) Ganymed AN - 877847223; 2011-058883 JF - Icarus AU - Fieber-Beyer, Sherry K AU - Gaffey, Michael J AU - Abell, Paul A Y1 - 2011/03// PY - 2011 DA - March 2011 SP - 149 EP - 157 PB - Elsevier, New York, NY VL - 212 IS - 1 SN - 0019-1035, 0019-1035 KW - silicates KW - ordinary chondrites KW - stony meteorites KW - Eros Asteroid KW - asteroids KW - near-Earth asteroids KW - meteorites KW - pyroxene group KW - mineral composition KW - chondrites KW - chain silicates KW - stony irons KW - near-Earth objects KW - Maria asteroid family KW - parent bodies KW - HED meteorites KW - diogenite KW - H chondrites KW - achondrites KW - weathering KW - space weathering KW - S-type asteroids KW - Portales Valley Meteorite KW - mesosiderite KW - orthopyroxene KW - Ganymed Asteroid KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/877847223?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Mineralogical+characterization+of+near-Earth+asteroid+%281036%29+Ganymed&rft.au=Fieber-Beyer%2C+Sherry+K%3BGaffey%2C+Michael+J%3BAbell%2C+Paul+A&rft.aulast=Fieber-Beyer&rft.aufirst=Sherry&rft.date=2011-03-01&rft.volume=212&rft.issue=1&rft.spage=149&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2010.12.013 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 72 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - achondrites; asteroids; chain silicates; chondrites; diogenite; Eros Asteroid; Ganymed Asteroid; H chondrites; HED meteorites; Maria asteroid family; mesosiderite; meteorites; mineral composition; near-Earth asteroids; near-Earth objects; ordinary chondrites; orthopyroxene; parent bodies; Portales Valley Meteorite; pyroxene group; S-type asteroids; silicates; space weathering; stony irons; stony meteorites; weathering DO - http://dx.doi.org/10.1016/j.icarus.2010.12.013 ER - TY - JOUR T1 - Emplacement scenarios for Vallis Schroeteri, Aristarchus Plateau, the Moon AN - 869789291; 2011-050330 AB - The volcanic processes that formed Vallis Schroeteri are not well understood. Vallis Schroeteri, located on the Aristarchus Plateau, is the largest rille on the Moon, and it displays three key morphologic components: the Cobra Head, the 155-km-long primary rille, and the 240-km-long inner rille. Observations of terrestrial eruptions are applied here to help explain the morphologic relationships observed for Vallis Schroeteri. The Cobra Head, a 10-km-wide source vent surrounded by a 35-km-diameter and 900-m-high low shield, might have been constructed from flows, spatter, and pyroclastic deposits erupted during lava fountain events, similar to the early stages of the vent at Pu"u 'O'o in Hawaii and the final morphology of Bandera Crater, a cinder cone in New Mexico. The vent fed an initial sheet flow controlled by pre-eruption topography. A channel formed within this sheet flow was the foundation for the primary rille, which deepened through construction and thermomechanical erosion by lava. The inner rille is confined to the flat floor of the primary rille and is characterized by tight gooseneck meanders. This rille crosscuts the distal scarp of the primary rille and extends toward Oceanus Procellarum. This enigmatic relationship can be explained through backup, overflow, and diversion of the lava into a new rille that eroded into the margin of the primary rille. Similar backup, overflow, and redirection of the lava flow were observed during the 1984 Mauna Loa eruption in Hawaii. Analysis of the final morphology of lunar rilles provides key information about lunar volcanic processes and insight into the local stratigraphy. JF - Special Paper - Geological Society of America AU - Garry, W Brent AU - Bleacher, Jacob E A2 - Ambrose, William A. A2 - Williams, David A. Y1 - 2011/03// PY - 2011 DA - March 2011 SP - 77 EP - 93 PB - Geological Society of America (GSA), Boulder, CO VL - 477 SN - 0072-1077, 0072-1077 KW - United States KW - lithostratigraphy KW - Cobra Head Rille KW - volcanic rocks KW - igneous rocks KW - New Mexico KW - topography KW - volcanism KW - Aristarchus KW - surface features KW - vents KW - rilles KW - Moon KW - Oceanus Procellarum KW - Hawaii KW - East Pacific Ocean Islands KW - Schroteri Vallis KW - emplacement KW - lava KW - eruptions KW - Oceania KW - terrestrial comparison KW - Polynesia KW - geomorphology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/869789291?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Emplacement+scenarios+for+Vallis+Schroeteri%2C+Aristarchus+Plateau%2C+the+Moon&rft.au=Garry%2C+W+Brent%3BBleacher%2C+Jacob+E&rft.aulast=Garry&rft.aufirst=W&rft.date=2011-03-01&rft.volume=477&rft.issue=&rft.spage=77&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2477%2803%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 78 N1 - PubXState - CO N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - Aristarchus; Cobra Head Rille; East Pacific Ocean Islands; emplacement; eruptions; geomorphology; Hawaii; igneous rocks; lava; lithostratigraphy; Moon; New Mexico; Oceania; Oceanus Procellarum; Polynesia; rilles; Schroteri Vallis; surface features; terrestrial comparison; topography; United States; vents; volcanic rocks; volcanism DO - http://dx.doi.org/10.1130/2011.2477(03) ER - TY - JOUR T1 - Geomorphic terrains and evidence for ancient volcanism within northeastern South Pole-Aitken Basin AN - 869787804; 2011-050333 AB - The interior of the enigmatic South Pole-Aitken Basin has long been recognized as being compositionally distinct from its exterior. However, the source of the compositional anomaly has been subject to some debate. Is the source of the iron-enhancement due to lower-crustal/upper-mantle material being exposed at the surface, or was there some volume of ancient volcanism that covered portions of the basin interior? While several obvious mare basalt units are found within the basin and regions that appear to represent the original basin interior, there are several regions that appear to have an uncertain origin. Using a combination of Clementine and Lunar Orbiter images, several morphologic units are defined based on albedo, crater density, and surface roughness. An extensive unit of ancient mare basalt (cryptomare) is defined and, based on the number of superimposed craters, potentially represents the oldest volcanic materials within the basin. Thus, the overall iron-rich interior of the basin is not solely due to deeply derived crustal material, but is, in part due to the presence of ancient volcanic units. JF - Special Paper - Geological Society of America AU - Petro, Noah E AU - Mest, Scott C AU - Teich, Yaron A2 - Ambrose, William A. A2 - Williams, David A. Y1 - 2011/03// PY - 2011 DA - March 2011 SP - 129 EP - 140 PB - Geological Society of America (GSA), Boulder, CO VL - 477 SN - 0072-1077, 0072-1077 KW - albedo KW - lithostratigraphy KW - volcanic rocks KW - Moon KW - igneous rocks KW - roughness KW - maria KW - South Pole-Aitken Basin KW - terrains KW - volcanism KW - basalts KW - surface features KW - Clementine Program KW - geomorphology KW - Lunar Orbiter Program KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/869787804?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Geomorphic+terrains+and+evidence+for+ancient+volcanism+within+northeastern+South+Pole-Aitken+Basin&rft.au=Petro%2C+Noah+E%3BMest%2C+Scott+C%3BTeich%2C+Yaron&rft.aulast=Petro&rft.aufirst=Noah&rft.date=2011-03-01&rft.volume=477&rft.issue=&rft.spage=129&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2477%2806%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 54 N1 - PubXState - CO N1 - Document feature - illus. incl. 1 table, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - albedo; basalts; Clementine Program; geomorphology; igneous rocks; lithostratigraphy; Lunar Orbiter Program; maria; Moon; roughness; South Pole-Aitken Basin; surface features; terrains; volcanic rocks; volcanism DO - http://dx.doi.org/10.1130/2011.2477(06) ER - TY - JOUR T1 - Rapid and extensive surface changes near Titan's equator; evidence of April showers AN - 864947891; 2011-040359 AB - Although there is evidence that liquids have flowed on the surface at Titan's equator in the past, to date, liquids have only been confirmed on the surface at polar latitudes, and the vast expanses of dunes that dominate Titan's equatorial regions require a predominantly arid climate. We report the detection by Cassini's Imaging Science Subsystem of a large low-latitude cloud system early in Titan's northern spring and extensive surface changes (spanning more than 500,000 square kilometers) in the wake of this storm. The changes are most consistent with widespread methane rainfall reaching the surface, which suggests that the dry channels observed at Titan's low latitudes are carved by seasonal precipitation. JF - Science AU - Turtle, E P AU - Perry, J E AU - Hayes, A G AU - Lorenz, R D AU - Barnes, J W AU - McEwen, A S AU - West, R A AU - Del Genio, A D AU - Barbara, J M AU - Lunine, J I AU - Schaller, E L AU - Ray, T L AU - Lopes, R M C AU - Stofan, E R Y1 - 2011/03// PY - 2011 DA - March 2011 SP - 1414 EP - 1417 PB - American Association for the Advancement of Science, Washington, DC VL - 331 IS - 6023 SN - 0036-8075, 0036-8075 KW - icy satellites KW - imagery KW - dunes KW - terrestrial environment KW - equatorial region KW - arid environment KW - channels KW - landforms KW - Cassini-Huygens Mission KW - surface features KW - Titan Satellite KW - storms KW - seasonal variations KW - satellites KW - meteorology KW - climate KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/864947891?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=Rapid+and+extensive+surface+changes+near+Titan%27s+equator%3B+evidence+of+April+showers&rft.au=Turtle%2C+E+P%3BPerry%2C+J+E%3BHayes%2C+A+G%3BLorenz%2C+R+D%3BBarnes%2C+J+W%3BMcEwen%2C+A+S%3BWest%2C+R+A%3BDel+Genio%2C+A+D%3BBarbara%2C+J+M%3BLunine%2C+J+I%3BSchaller%2C+E+L%3BRay%2C+T+L%3BLopes%2C+R+M+C%3BStofan%2C+E+R&rft.aulast=Turtle&rft.aufirst=E&rft.date=2011-03-01&rft.volume=331&rft.issue=6023&rft.spage=1414&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.1201063 L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 37 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch maps N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - arid environment; Cassini-Huygens Mission; channels; climate; dunes; equatorial region; icy satellites; imagery; landforms; meteorology; remote sensing; satellites; seasonal variations; storms; surface features; terrestrial environment; Titan Satellite DO - http://dx.doi.org/10.1126/science.1201063 ER - TY - JOUR T1 - Irrigation's climate effects and the water sustainability link AN - 1762118774; 14806271 AB - WHILE it is well known that the rapid expansion of irrigation during the twentieth century has significantly altered the Earth's terrestrial hydrologic cycle, only recently has attention been focused on the connections between irrigation and climate. These irrigation-climate connections include possible changes in regional temperature and rainfall. It is therefore important to understand how 20th century changes in irrigation amount, extent, and location may have influenced climate, especially in the heavily irrigated regions of the world. Additionally, the insight gained from analysis of 20th century connections between irrigation and climate are potentially valuable for predicting future irrigation-climate interactions. JF - International Water Power and Dam Construction AU - Puma, MJ AU - Cook, B I AD - Columbia University Center for Climate Systems Research, USA mpuma@giss.nasa.gov Y1 - 2011/03// PY - 2011 DA - March 2011 SP - 38 EP - 40 PB - Wilmington Publishing Ltd., Wilmington House, Church Hill, Wilmington Dartford Kent DA2 7EF United Kingdom VL - 63 IS - 3 SN - 0306-400X, 0306-400X KW - Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN); Electronics and Communications Abstracts (EA); CSA / ASCE Civil Engineering Abstracts (CE); ANTE: Abstracts in New Technologies and Engineering (AN) KW - Earth KW - Links KW - Hydrologic cycles KW - Irrigation KW - Climate KW - Sustainability KW - Joints KW - Yes:(AN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1762118774?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Water+Power+and+Dam+Construction&rft.atitle=Irrigation%27s+climate+effects+and+the+water+sustainability+link&rft.au=Puma%2C+MJ%3BCook%2C+B+I&rft.aulast=Puma&rft.aufirst=MJ&rft.date=2011-03-01&rft.volume=63&rft.issue=3&rft.spage=38&rft.isbn=&rft.btitle=&rft.title=International+Water+Power+and+Dam+Construction&rft.issn=0306400X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-06-01 N1 - Last updated - 2016-06-30 ER - TY - JOUR T1 - Preservation of Martian organic and environmental records; final report of the Mars Biosignature Working Group AN - 1542646606; 2014-048268 AB - The Mars Science Laboratory (MSL) has an instrument package capable of making measurements of past and present environmental conditions. The data generated may tell us if Mars is, or ever was, able to support life. However, the knowledge of Mars' past history and the geological processes most likely to preserve a record of that history remain sparse and, in some instances, ambiguous. Physical, chemical, and geological processes relevant to biosignature preservation on Earth, especially under conditions early in its history when microbial life predominated, are also imperfectly known. Here, we present the report of a working group chartered by the Co-Chairs of NASA's MSL Project Science Group, John P. Grotzinger and Michael A. Meyer, to review and evaluate potential for biosignature formation and preservation on Mars. Orbital images confirm that layered rocks achieved kilometer-scale thicknesses in some regions of ancient Mars. Clearly, interplays of sedimentation and erosional processes govern present-day exposures, and our understanding of these processes is incomplete. MSL can document and evaluate patterns of stratigraphic development as well as the sources of layered materials and their subsequent diagenesis. It can also document other potential biosignature repositories such as hydrothermal environments. These capabilities offer an unprecedented opportunity to decipher key aspects of the environmental evolution of Mars' early surface and aspects of the diagenetic processes that have operated since that time. Considering the MSL instrument payload package, we identified the following classes of biosignatures as within the MSL detection window: organism morphologies (cells, body fossils, casts), biofabrics (including microbial mats), diagnostic organic molecules, isotopic signatures, evidence of biomineralization and bioalteration, spatial patterns in chemistry, and biogenic gases. Of these, biogenic organic molecules and biogenic atmospheric gases are considered the most definitive and most readily detectable by MSL JF - Astrobiology AU - Summons, Roger E AU - Amend, Jan P AU - Bish, David L AU - Buick, Roger AU - Cody, George D AU - Des Marais, David J AU - Dromart, Gilles AU - Eigenbrode, Jennifer L AU - Knoll, Andrew H AU - Sumner, Dawn Y Y1 - 2011/03// PY - 2011 DA - March 2011 SP - 157 EP - 181 PB - Mary Ann Liebert, Larchmont, NY VL - 11 IS - 2 SN - 1531-1074, 1531-1074 KW - silicates KW - isotopes KW - astrobiology KW - Mars KW - geothermal systems KW - carbon KW - taphonomy KW - sedimentary structures KW - biomineralization KW - biogenic structures KW - atmosphere KW - biomarkers KW - gases KW - terrestrial planets KW - morphology KW - planets KW - organic compounds KW - biogenic processes KW - paleoenvironment KW - detection KW - Mars Science Laboratory KW - sulfur KW - sheet silicates KW - preservation KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1542646606?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrobiology&rft.atitle=Preservation+of+Martian+organic+and+environmental+records%3B+final+report+of+the+Mars+Biosignature+Working+Group&rft.au=Summons%2C+Roger+E%3BAmend%2C+Jan+P%3BBish%2C+David+L%3BBuick%2C+Roger%3BCody%2C+George+D%3BDes+Marais%2C+David+J%3BDromart%2C+Gilles%3BEigenbrode%2C+Jennifer+L%3BKnoll%2C+Andrew+H%3BSumner%2C+Dawn+Y&rft.aulast=Summons&rft.aufirst=Roger&rft.date=2011-03-01&rft.volume=11&rft.issue=2&rft.spage=157&rft.isbn=&rft.btitle=&rft.title=Astrobiology&rft.issn=15311074&rft_id=info:doi/10.1089%2Fast.2010.0506 L2 - http://www.liebertpub.com/publication.aspx?pub_id=99 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 97 N1 - PubXState - NY N1 - Document feature - illus. incl. 12 tables N1 - Last updated - 2014-07-04 N1 - SubjectsTermNotLitGenreText - astrobiology; atmosphere; biogenic processes; biogenic structures; biomarkers; biomineralization; carbon; detection; gases; geothermal systems; isotopes; Mars; Mars Science Laboratory; morphology; organic compounds; paleoenvironment; planets; preservation; sedimentary structures; sheet silicates; silicates; sulfur; taphonomy; terrestrial planets DO - http://dx.doi.org/10.1089/ast.2010.0506 ER - TY - JOUR T1 - Distribution and stable isotopic composition of amino acids from fungal peptaibiotics; assessing the potential for meteoritic contamination AN - 1542645839; 2014-048265 AB - The presence of nonprotein alpha -dialkyl-amino acids such as alpha -aminoisobutyric acid (alpha -AIB) and isovaline (Iva), which are considered to be relatively rare in the terrestrial biosphere, has long been used as an indication of the indigeneity of meteoritic amino acids. However, recent work showing the presence of alpha -AIB and Iva in peptides produced by a widespread group of filamentous fungi indicates the possibility of a terrestrial biotic source for the alpha -AIB observed in some meteorites. We measured the amino acid distribution and stable carbon and nitrogen isotopic composition of four alpha -AIB-containing fungal peptides and compared this data to similar meteoritic measurements. We show that the relatively simple distribution of the C (sub 4) and C (sub 5) amino acids in fungal peptides is distinct from the complex distribution observed in many carbonaceous chondrites. We also identify potentially diagnostic relationships between the stable isotopic compositions of pairs of amino acids from the fungal peptides that may aid in ruling out fungal contamination as a source of meteoritic amino acids. JF - Astrobiology AU - Elsila, Jamie E AU - Callahan, Michael P AU - Glavin, Daniel P AU - Dworkin, Jason P AU - Brueckner, Hans Y1 - 2011/03// PY - 2011 DA - March 2011 SP - 123 EP - 133 PB - Mary Ann Liebert, Larchmont, NY VL - 11 IS - 2 SN - 1531-1074, 1531-1074 KW - stony meteorites KW - isotopes KW - LaPaz Icefield Meteorites KW - astrobiology KW - LAP 02342 KW - stable isotopes KW - peptaibiotics KW - nitrogen KW - Murchison Meteorite KW - meteorites KW - fungi KW - carbon KW - amino acids KW - composition KW - isovaline KW - chondrites KW - alpha-aminoisobutyric acid KW - N-15/N-14 KW - isotope ratios KW - C-13/C-12 KW - statistical analysis KW - glycine KW - carbonaceous chondrites KW - organic compounds KW - organic acids KW - Graves Nunataks Meteorites KW - peptides KW - GRA 95229 KW - CM chondrites KW - regression analysis KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1542645839?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrobiology&rft.atitle=Distribution+and+stable+isotopic+composition+of+amino+acids+from+fungal+peptaibiotics%3B+assessing+the+potential+for+meteoritic+contamination&rft.au=Elsila%2C+Jamie+E%3BCallahan%2C+Michael+P%3BGlavin%2C+Daniel+P%3BDworkin%2C+Jason+P%3BBrueckner%2C+Hans&rft.aulast=Elsila&rft.aufirst=Jamie&rft.date=2011-03-01&rft.volume=11&rft.issue=2&rft.spage=123&rft.isbn=&rft.btitle=&rft.title=Astrobiology&rft.issn=15311074&rft_id=info:doi/10.1089%2Fast.2010.0505 L2 - http://www.liebertpub.com/publication.aspx?pub_id=99 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 58 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2014-07-04 N1 - SubjectsTermNotLitGenreText - alpha-aminoisobutyric acid; amino acids; astrobiology; C-13/C-12; carbon; carbonaceous chondrites; chondrites; CM chondrites; composition; fungi; glycine; GRA 95229; Graves Nunataks Meteorites; isotope ratios; isotopes; isovaline; LAP 02342; LaPaz Icefield Meteorites; meteorites; Murchison Meteorite; N-15/N-14; nitrogen; organic acids; organic compounds; peptaibiotics; peptides; regression analysis; stable isotopes; statistical analysis; stony meteorites DO - http://dx.doi.org/10.1089/ast.2010.0505 ER - TY - JOUR T1 - Synthesis and properties of sulfonated and unsulfonated poly(arylene ether triazine)s with pendant diphenylamine groups for fuel cell applications AN - 1464505094; 14419065 AB - A series of poly(arylene ether triazine) homopolymers were synthesized that contain pendant diphenylamine groups. The polymers had inherent viscosities from 0.66 to 1.01 dL/g in DMAc at 25 [deg]C, thermal stabilities >500 [deg]C in air, glass transition temperatures from 156 [deg]C to 309 [deg]C, and solubilities that depended upon the bis(4-fluorophenyl) monomer that was used for polymerization. Polymers could be sulfonated with chlorosulfonic acid exclusively at the para position of the diphenylamine rings, with ion exchange capacities from 1.88 to 2.12 meq/g. Transmission electron microscopy images show that the morphology of the sulfonated polymer films depends on the functional group in the polymer backbone. Polymers containing sulfone groups exhibited small ionic clusters within a uniform ion-containing background, while polymers with ketone and isophthaloyl groups exhibited phase separation with different sizes of spherical hydrophilic clusters. The uniform distribution of ionic groups within polymers that contain sulfone groups resulted in higher proton conductivity, 0.11 S/cm at 90 [deg]C and 100% relative humidity, in spite of having a lower degree of sulfonation and water uptake. Small angle neutron scattering data also shows this film has a robust morphology that does not change as a function of temperature or by counterion exchange. Films cast from unsulfonated polymers that contained phosphine oxide groups in the polymer backbone, as well polymer blends with polybenzimidazole soaked in 85% phosphoric acid at 75 [deg]C, had phosphoric acid uptakes above 350 wt%, and as high as 830 wt%. However, these films lost dimensional stability at elevated temperatures. JF - Journal of Membrane Science AU - Tigelaar, Dean M AU - Palker, Allyson E AU - He, Ronghuan AU - Scheiman, Daniel A AU - Petek, Tyler AU - Savinell, Robert AU - Yoonessi, Mitra AD - NASA Glenn Research Center, 21000 Brookpark Rd., Cleveland, OH 44135, United States, dean.m.tigelaar@nasa.gov Y1 - 2011/03/01/ PY - 2011 DA - 2011 Mar 01 SP - 455 EP - 465 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 369 IS - 1-2 SN - 0376-7388, 0376-7388 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Relative humidity KW - Fuel technology KW - Polymerization KW - Fuels KW - Transition temperatures KW - Relative Humidity KW - Absorption KW - Phosphoric acid KW - Ethers KW - Ion exchange KW - Films KW - Temperature KW - Humidity KW - Ketones KW - Acids KW - Morphology KW - Microscopy KW - Uptake KW - Capacity KW - Polymers KW - SW 5010:Network design KW - Q5 08502:Methods and instruments KW - AQ 00005:Underground Services and Water Use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1464505094?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Membrane+Science&rft.atitle=Synthesis+and+properties+of+sulfonated+and+unsulfonated+poly%28arylene+ether+triazine%29s+with+pendant+diphenylamine+groups+for+fuel+cell+applications&rft.au=Tigelaar%2C+Dean+M%3BPalker%2C+Allyson+E%3BHe%2C+Ronghuan%3BScheiman%2C+Daniel+A%3BPetek%2C+Tyler%3BSavinell%2C+Robert%3BYoonessi%2C+Mitra&rft.aulast=Tigelaar&rft.aufirst=Dean&rft.date=2011-03-01&rft.volume=369&rft.issue=1-2&rft.spage=455&rft.isbn=&rft.btitle=&rft.title=Journal+of+Membrane+Science&rft.issn=03767388&rft_id=info:doi/10.1016%2Fj.memsci.2010.12.018 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-11-01 N1 - Last updated - 2014-05-02 N1 - SubjectsTermNotLitGenreText - Relative humidity; Polymerization; Ketones; Fuels; Transition temperatures; Uptake; Phosphoric acid; Ion exchange; Fuel technology; Microscopy; Morphology; Temperature; Humidity; Ethers; Polymers; Acids; Absorption; Capacity; Relative Humidity; Films DO - http://dx.doi.org/10.1016/j.memsci.2010.12.018 ER - TY - JOUR T1 - Self-consistent model atmospheres and the cooling of the solar system's giant planets AN - 1416689530; 2013-060078 AB - We compute grids of radiative-convective model atmospheres for Jupiter, Saturn, Uranus, and Neptune over a range of intrinsic fluxes and surface gravities. The atmosphere grids serve as an upper boundary condition for models of the thermal evolution of the planets. Unlike previous work, we customize these grids for the specific properties of each planet, including the appropriate chemical abundances and incident fluxes as a function of solar system age. Using these grids, we compute new models of the thermal evolution of the major planets in an attempt to match their measured luminosities at their known ages. Compared to previous work, we find longer cooling times, predominantly due to higher atmospheric opacity at young ages. For all planets, we employ simple "standard" cooling models that feature adiabatic temperature gradients in the interior H/He and water layers, and an initially hot starting point for the calculation of subsequent cooling. For Jupiter, we find a model cooling age approximately 10% longer than previous work, a modest quantitative difference. This may indicate that the hydrogen equation of state used here overestimates the temperatures in the deep interior of the planet. For Saturn, we find a model cooling age approximately 20% longer than previous work. However, an additional energy source, such as that due to helium phase separation, is still clearly needed. For Neptune, unlike in work from the 1980s and 1990s, we match the measured T (sub eff) of the planet with a model that also matches the planet's current gravity field constraints. This is predominantly due to advances in the high-pressure equation of state of water. This may indicate that the planet possesses no barriers to efficient convection in its deep interior. However, for Uranus, our models exacerbate the well-known problem that Uranus is far cooler than calculations predict, which could imply strong barriers to interior convective cooling. The atmosphere grids are published here as tables, so that they may be used by the wider community. Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The = Astrophysical Journal AU - Fortney, J J AU - Ikoma, M AU - Nettelmann, N AU - Guillot, T AU - Marley, M S Y1 - 2011/03/01/ PY - 2011 DA - 2011 Mar 01 EP - paper 32 PB - University of Chicago Press for the American Astronomical Society, Chicago, IL VL - 729 IS - 1 SN - 0004-637X, 0004-637X KW - water KW - solar system KW - Jupiter KW - atmosphere KW - convection KW - thermal history KW - giant planets KW - models KW - Saturn KW - planets KW - gravity field KW - Uranus KW - noble gases KW - hydrogen KW - planetary interiors KW - cooling KW - helium KW - outer planets KW - Neptune KW - equations of state KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1416689530?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+%3D+Astrophysical+Journal&rft.atitle=Self-consistent+model+atmospheres+and+the+cooling+of+the+solar+system%27s+giant+planets&rft.au=Fortney%2C+J+J%3BIkoma%2C+M%3BNettelmann%2C+N%3BGuillot%2C+T%3BMarley%2C+M+S&rft.aulast=Fortney&rft.aufirst=J&rft.date=2011-03-01&rft.volume=729&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+%3D+Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F729%2F1%2F32 L2 - http://iopscience.iop.org/0004-637X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 95 N1 - PubXState - IL N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2013-08-02 N1 - SubjectsTermNotLitGenreText - atmosphere; convection; cooling; equations of state; giant planets; gravity field; helium; hydrogen; Jupiter; models; Neptune; noble gases; outer planets; planetary interiors; planets; Saturn; solar system; thermal history; Uranus; water DO - http://dx.doi.org/10.1088/0004-637X/729/1/32 ER - TY - JOUR T1 - Kepler's first rocky planet; Kepler-10b AN - 1366815431; 2013-046576 AB - NASA's Kepler Mission uses transit photometry to determine the frequency of Earth-size planets in or near the habitable zone of Sun-like stars. The mission reached a milestone toward meeting that goal: the discovery of its first rocky planet, Kepler-10b. Two distinct sets of transit events were detected: (1) a 152+ or -4 ppm dimming lasting 1.811+ or -0.024 hr with ephemeris T[BJD]=2454964.57375 (super +0.00060) (sub -0.00082) + N (super *) 0.837495 (super +0.000004) (sub -0.000005) days and (2) a 376+ or -9 ppm dimming lasting 6.86+ or -0.07 hr with ephemeris T[BJD]=2454971.6761 (super +0.0020) (sub -0.0023) +N (super *) 45.29485 (super +0.00065) (sub -0.0007 6) days. Statistical tests on the photometric and pixel flux time series established the viability of the planet candidates triggering ground-based follow-up observations. Forty precision Doppler measurements were used to confirm that the short-period transit event is due to a planetary companion. The parent star is bright enough for asteroseismic analysis. Photometry was collected at 1 minute cadence for >4 months from which we detected 19 distinct pulsation frequencies. Modeling the frequencies resulted in precise knowledge of the fundamental stellar properties. Kepler-10 is a relatively old (11.9+ or -4.5 Gyr) but otherwise Sun-like main-sequence star with T (sub eff) =5627+ or -44 K, M (sub *) =0.895+ or -0.060 M (sub []) , and R (sub *) =1.056+ or -0.021 R (sub []) . Physical models simultaneously fit to the transit light curves and the precision Doppler measurements yielded tight constraints on the properties of Kepler-10b that speak to its rocky composition: M (sub P) =4.56 (super +1.17) (sub -1.29) M (sub Earth) , R (sub P) =1.416 (super +0.033) (sub -0.036) R (sub Earth) , and rho (sub P) =8.8 (super +2.1) (sub -2.9) g cm (super -3) . Kepler-10b is the smallest transiting exoplanet discovered to date. Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The = Astrophysical Journal AU - Batalha, Natalie M AU - Borucki, William J AU - Bryson, Stephen T AU - Buchhave, Lars A AU - Caldwell, Douglas A AU - Christensen-Dalsgaard, Jorgen AU - Ciardi, David AU - Dunham, Edward W AU - Fressin, Francois AU - Gautier, Thomas N, III AU - Gilliland, Ronald L AU - Haas, Michael R AU - Howell, Steve B AU - Jenkins, Jon M AU - Kjeldsen, Hans AU - Koch, David G AU - Latham, David W AU - Lissauer, Jack J AU - Marcy, Geoffrey W AU - Rowe, Jason F AU - Sasselov, Dimitar D AU - Seager, Sara AU - Steffen, Jason H AU - Torres, Guillermo AU - Basri, Gibor S AU - Brown, Timothy M AU - Charbonneau, David AU - Christiansen, Jessie AU - Clarke, Bruce AU - Cochran, William D AU - Dupree, Andrea AU - Fabrycky, Daniel C AU - Fischer, Debra AU - Ford, Eric B AU - Fortney, Jonathan AU - Girouard, Forrest R AU - Holman, Matthew J AU - Johnson, John AU - Isaacson, Howard AU - Klaus, Todd C AU - Machalek, Pavel AU - Moorehead, Althea V AU - Morehead, Robert C AU - Ragozzine, Darin AU - Tenenbaum, Peter AU - Twicken, Joseph AU - Quinn, Samuel AU - VanCleve, Jeffrey AU - Walkowicz, Lucianne M AU - Welsh, William F AU - DeVore, Edna AU - Gould, Alan Y1 - 2011/03/01/ PY - 2011 DA - 2011 Mar 01 EP - paper27 PB - University of Chicago Press for the American Astronomical Society, Chicago, IL VL - 729 IS - 1 SN - 0004-637X, 0004-637X KW - extrasolar planets KW - telescope methods KW - Doppler effect KW - Kepler-10b KW - habitable zone KW - physical models KW - temperature KW - terrestrial planets KW - mass KW - planets KW - photometry KW - stars KW - Kepler Mission KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1366815431?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+%3D+Astrophysical+Journal&rft.atitle=Kepler%27s+first+rocky+planet%3B+Kepler-10b&rft.au=Batalha%2C+Natalie+M%3BBorucki%2C+William+J%3BBryson%2C+Stephen+T%3BBuchhave%2C+Lars+A%3BCaldwell%2C+Douglas+A%3BChristensen-Dalsgaard%2C+Jorgen%3BCiardi%2C+David%3BDunham%2C+Edward+W%3BFressin%2C+Francois%3BGautier%2C+Thomas+N%2C+III%3BGilliland%2C+Ronald+L%3BHaas%2C+Michael+R%3BHowell%2C+Steve+B%3BJenkins%2C+Jon+M%3BKjeldsen%2C+Hans%3BKoch%2C+David+G%3BLatham%2C+David+W%3BLissauer%2C+Jack+J%3BMarcy%2C+Geoffrey+W%3BRowe%2C+Jason+F%3BSasselov%2C+Dimitar+D%3BSeager%2C+Sara%3BSteffen%2C+Jason+H%3BTorres%2C+Guillermo%3BBasri%2C+Gibor+S%3BBrown%2C+Timothy+M%3BCharbonneau%2C+David%3BChristiansen%2C+Jessie%3BClarke%2C+Bruce%3BCochran%2C+William+D%3BDupree%2C+Andrea%3BFabrycky%2C+Daniel+C%3BFischer%2C+Debra%3BFord%2C+Eric+B%3BFortney%2C+Jonathan%3BGirouard%2C+Forrest+R%3BHolman%2C+Matthew+J%3BJohnson%2C+John%3BIsaacson%2C+Howard%3BKlaus%2C+Todd+C%3BMachalek%2C+Pavel%3BMoorehead%2C+Althea+V%3BMorehead%2C+Robert+C%3BRagozzine%2C+Darin%3BTenenbaum%2C+Peter%3BTwicken%2C+Joseph%3BQuinn%2C+Samuel%3BVanCleve%2C+Jeffrey%3BWalkowicz%2C+Lucianne+M%3BWelsh%2C+William+F%3BDeVore%2C+Edna%3BGould%2C+Alan&rft.aulast=Batalha&rft.aufirst=Natalie&rft.date=2011-03-01&rft.volume=729&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+%3D+Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F729%2F1%2F27 L2 - http://iopscience.iop.org/0004-637X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 82 N1 - PubXState - IL N1 - Document feature - illus. incl. 7 tables N1 - SuppNotes - Based in part on observations obtained at the W. M. Keck Observatory, which is operated by the University of California and the California Institute of Technology. N1 - Last updated - 2013-09-20 N1 - SubjectsTermNotLitGenreText - Doppler effect; extrasolar planets; habitable zone; Kepler Mission; Kepler-10b; mass; photometry; physical models; planets; stars; telescope methods; temperature; terrestrial planets DO - http://dx.doi.org/10.1088/0004-637X/729/1/27 ER - TY - JOUR T1 - MicroRaman spectroscopy of diamond and graphite in Almahata Sitta and comparison with other ureilites AN - 1287377880; 2013-019685 AB - This work is the first detailed study of carbon phases in the ureilite Almahata Sitta (sample #7). We present microRaman data for diamond and graphite in Almahata Sitta, seven unbrecciated ureilites, and two brecciated ureilites. Diamond in Almahata Sitta was found to be distinct from that in unbrecciated and brecciated ureilites, although diamond in unbrecciated and brecciated ureilites is indistinguishable. Almahata Sitta diamond shows a peak center range of 1318.5-1330.2 cm (super -1) and a full width at half maximum (FWHM) range of 6.6-17.4 cm (super -1) , representing a shock pressure of at least 60 kbar. The actual peak shock pressure may be higher than this due to postshock annealing, if shock synthesis is the source of ureilite diamonds. Diamond in unbrecciated and brecciated ureilites have peak center wave numbers closer to terrestrial kimberlite diamond, but show a wider range of FWHM than Almahata Sitta. The larger peak shift observed in Almahata Sitta may indicate the presence of lonsdaleite. Alternatively, the lower values in brecciated ureilites may be evidence of an annealing step either following the initial diamond-generating shock or as a consequence of heating during reconsolidation of the breccia. Graphite in Almahata Sitta shows a G-band peak center range of 1569.1-1577.1 cm (super -1) and a G-band FWHM range of 24.3-41.6 cm (super -1) representing a formation temperature of 990 + or - 120 degrees C. Amorphous carbon was also found. We examine the different theories for diamond formation in ureilites, such as chemical vapor deposition and shock origin from graphite, and explore explanations for the differences between Almahata Sitta and other ureilites. JF - Meteoritics & Planetary Science AU - Ross, Aidan J AU - Steele, Andrew AU - Fries, Marc D AU - Kater, Lukas AU - Downes, Hilary AU - Jones, Adrian P AU - Smith, Caroline L AU - Jenniskens, Peter M AU - Zolensky, Michael E AU - Shaddad, Muawia H Y1 - 2011/03// PY - 2011 DA - March 2011 SP - 364 EP - 378 PB - Meteoritical Society, Fayetteville, AR VL - 46 IS - 3 SN - 1086-9379, 1086-9379 KW - Northwest Africa Meteorites KW - DaG 868 KW - stony meteorites KW - Sah 98505 KW - LAR 04315 KW - Sahara Meteorites KW - meteorites KW - Dar al Gani Meteorites KW - DaG 1047 KW - diamond KW - DaG 319 KW - microRaman spectra KW - Almahata Sitta Meteorite KW - spectra KW - Larkman Nunatak Meteorites KW - lonsdaleite KW - NWA 3140 KW - native elements KW - ureilite KW - metamorphism KW - achondrites KW - graphite KW - Raman spectra KW - shock metamorphism KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1287377880?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=MicroRaman+spectroscopy+of+diamond+and+graphite+in+Almahata+Sitta+and+comparison+with+other+ureilites&rft.au=Ross%2C+Aidan+J%3BSteele%2C+Andrew%3BFries%2C+Marc+D%3BKater%2C+Lukas%3BDownes%2C+Hilary%3BJones%2C+Adrian+P%3BSmith%2C+Caroline+L%3BJenniskens%2C+Peter+M%3BZolensky%2C+Michael+E%3BShaddad%2C+Muawia+H&rft.aulast=Ross&rft.aufirst=Aidan&rft.date=2011-03-01&rft.volume=46&rft.issue=3&rft.spage=364&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2010.01157.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 66 N1 - PubXState - AR N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2013-04-19 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; Almahata Sitta Meteorite; DaG 1047; DaG 319; DaG 868; Dar al Gani Meteorites; diamond; graphite; LAR 04315; Larkman Nunatak Meteorites; lonsdaleite; metamorphism; meteorites; microRaman spectra; native elements; Northwest Africa Meteorites; NWA 3140; Raman spectra; Sah 98505; Sahara Meteorites; shock metamorphism; spectra; stony meteorites; ureilite DO - http://dx.doi.org/10.1111/j.1945-5100.2010.01157.x ER - TY - JOUR T1 - Radiation propagation in random media: From positive to negative correlations in high-frequency fluctuations AN - 1093452331; 14260185 AB - We survey research on radiation propagation or ballistic particle motion through media with randomly variable material density, and we investigate the topic with an emphasis on very high spatial frequencies. Our new results are based on a specific variability model consisting of a zero-mean Gaussian scaling noise riding on a constant value that is large enough with respect to the amplitude of the noise to yield overwhelmingly non-negative density. We first generalize known results about sub-exponential transmission from regular functions, which are almost everywhere continuous, to merely "measurable" ones, which are almost everywhere discontinuous (akin to statistically stationary noises), with positively correlated fluctuations. We then use the generalized measure-theoretic formulation to address negatively correlated stochastic media without leaving the framework of conventional (continuum-limit) transport theory. We thus resolve a controversy about recent claims that only discrete-point process approaches can accommodate negative correlations, i.e., anti-clustering of the material particles. We obtain in this case the predicted super-exponential behavior, but it is rather weak. Physically, and much like the alternative discrete-point process approach, the new model applies most naturally to scales commensurate with the inter-particle distance in the material, i.e., when the notion of particle density breaks down due to Poissonian - or maybe not-so-Poissonian - number-count fluctuations occur in the sample volume. At the same time, the noisy structure must prevail up to scales commensurate with the mean-free-path to be of practical significance. Possible applications are discussed. JF - Journal of Quantitative Spectroscopy and Radiative Transfer AU - Davis, Anthony B AU - Mineev-Weinstein, Mark B AD - Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA, Anthony.B.Davis@jpl.nasa.gov Y1 - 2011/03// PY - 2011 DA - Mar 2011 SP - 632 EP - 645 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 112 IS - 4 SN - 0022-4073, 0022-4073 KW - Toxicology Abstracts KW - Multi-dimensional radiation transport KW - Stochastic media KW - Non-exponential transmission laws KW - Clustering/anti-clustering material particles KW - Negative spatial correlations KW - Radiation KW - Media (transport) KW - Spectroscopy KW - Scaling KW - Stochasticity KW - Models KW - X 24300:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1093452331?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Quantitative+Spectroscopy+and+Radiative+Transfer&rft.atitle=Radiation+propagation+in+random+media%3A+From+positive+to+negative+correlations+in+high-frequency+fluctuations&rft.au=Davis%2C+Anthony+B%3BMineev-Weinstein%2C+Mark+B&rft.aulast=Davis&rft.aufirst=Anthony&rft.date=2011-03-01&rft.volume=112&rft.issue=4&rft.spage=632&rft.isbn=&rft.btitle=&rft.title=Journal+of+Quantitative+Spectroscopy+and+Radiative+Transfer&rft.issn=00224073&rft_id=info:doi/10.1016%2Fj.jqsrt.2010.10.001 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-10-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Radiation; Media (transport); Spectroscopy; Stochasticity; Scaling; Models DO - http://dx.doi.org/10.1016/j.jqsrt.2010.10.001 ER - TY - JOUR T1 - Dressing Like We Mean It AN - 1038043685; 201208529 AB - In this article, two information professionals -- Tony Stankus, an academic librarian who has been in the field for more than 40 years, and Mallory Olguin, a government librarian who earned her MLIS in 2009 -- share their thoughts on how clothing makes the librarian (and vice versa). They dress in very different styles, but both wear clothing that conforms to their job requirements. They also believe that how librarians dress matters, and that dressing without regard to the culture of the organization undercuts their attempts to be taken seriously. Adapted from the source document. JF - Information Outlook AU - Olguin, Mallory K AU - Stankus, Tony AD - NASA Center for Aerospace Information, Baltimore, MD mallory.k.olguin@nasa.gov Y1 - 2011/03// PY - 2011 DA - March 2011 SP - 8 EP - 11 PB - Special Libraries Association, Alexandria VA VL - 15 IS - 2 SN - 1091-0808, 1091-0808 KW - Career development KW - Image KW - Information professionals KW - article KW - 2.13: LIBRARY AND INFORMATION STAFF UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1038043685?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Alisa&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Information+Outlook&rft.atitle=Dressing+Like+We+Mean+It&rft.au=Olguin%2C+Mallory+K%3BStankus%2C+Tony&rft.aulast=Olguin&rft.aufirst=Mallory&rft.date=2011-03-01&rft.volume=15&rft.issue=2&rft.spage=8&rft.isbn=&rft.btitle=&rft.title=Information+Outlook&rft.issn=10910808&rft_id=info:doi/ LA - English DB - Library & Information Science Abstracts (LISA) N1 - Date revised - 2012-09-01 N1 - Last updated - 2016-09-27 N1 - SubjectsTermNotLitGenreText - Information professionals; Image; Career development ER - TY - JOUR T1 - Source contributions to Northern Hemisphere CO and black carbon during spring and summer 2008 from POLARCAT and START08/preHIPPO observations and MOZART-4 AN - 860377414; 14432304 AB - Anthropogenic pollution and wildfires are main producers of carbon monoxide (CO) and black carbon (BC) in the Northern Hemisphere. High concentrations of these compounds are transported into the Arctic troposphere, influencing the ecosystem in high northern latitudes and the global climate. The global chemical transport model MOZART-4 is used to quantify the seasonal evolution of the contribution of CO and BC from different source regions in spring and summer 2008 by tagging their emissions. Aircraft observations from the POLARCAT experiments, in particular NASA ARCTAS, NOAA ARCPAC, POLARCAT-France, DLR GRACE and YAK-AEROSIB, as well as the NSF START08/preHIPPO experiments during Spring-Summer 2008 are combined to quantify the representation of simulated tracer characteristics in anthropogenic and fire plumes. In general, the model reproduces CO and BC well. Based on aircraft measurements and FLEXPART back-trajectories, the altitude contribution of emissions coming from different source regions is well captured in the model. Uncertainties of the MOZART-4 model are identified by comparing the data with model results on the flight tracks and using MOPITT satellite observations. Anthropogenic emissions are underestimated by about 10% in high northern latitudes in spring, and shortcomings exist in simulating fire plumes. The remote impact of East-Siberian fire emissions is underestimated for spring, whereas the impact of Southeast Asian fire emissions to mid-latitude CO values is overestimated by the model. In summer, mid-latitude CO values agree well between model and observations, whereas summer high latitude East-Siberian fire emissions in the model are overestimated by 20% in comparison to observations in the region. On the other hand, CO concentrations are underestimated by about 30% over Alaska and Canada at altitudes above 4 km. BC values are overestimated by the model at altitudes above 4 km in summer. Based on MOZART-4, with tagged CO and BC tracers, anthropogenic emissions of Asia, Europe and the US have the largest contribution to the CO and BC in mid- and high latitudes in spring and summer. Southeast Asian, Chinese and Indian fires have a large impact on CO pollution in spring in low latitudes with a maximum between 20 degree and 30 degree , whereas Siberian fires contribute largely to the pollution in high latitudes, up to 10% in spring and up to 30% in summer. The largest contributions to BC values in high latitudes are from anthropogenic emissions (about 70%). CO and BC have larger mass loadings in April than in July, as a result of photochemistry and dynamics. JF - Atmospheric Chemistry and Physics Discussions AU - Tilmes, S AU - Emmons, L K AU - Law, K S AU - Ancellet, G AU - Schlager, H AU - Paris, J-D AU - Fuelberg, HE AU - Streets, D G AU - Wiedinmyer, C AU - Diskin, G S AD - NASA Langley Research Center, Hampton, Virginia, USA Y1 - 2011/02/21/ PY - 2011 DA - 2011 Feb 21 SP - 5935 EP - 5983 PB - European Geosciences Union, c/o E.O.S.T. Strasbourg Cedex 67084 France VL - 11 IS - 2 SN - 1680-7367, 1680-7367 KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - Atmospheric pollution models KW - altitude KW - Aircraft KW - black carbon KW - ANE, Europe KW - INW, Asia KW - Emissions KW - Emission measurements KW - Fires KW - Climate models KW - anthropogenic factors KW - Aircraft observations KW - INE, USA, Alaska KW - PN, Arctic KW - Global climate KW - Russia, Siberia KW - Satellite data KW - Atmospheric chemistry KW - summer KW - latitude KW - Arctic ecology KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/860377414?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Chemistry+and+Physics+Discussions&rft.atitle=Source+contributions+to+Northern+Hemisphere+CO+and+black+carbon+during+spring+and+summer+2008+from+POLARCAT+and+START08%2FpreHIPPO+observations+and+MOZART-4&rft.au=Tilmes%2C+S%3BEmmons%2C+L+K%3BLaw%2C+K+S%3BAncellet%2C+G%3BSchlager%2C+H%3BParis%2C+J-D%3BFuelberg%2C+HE%3BStreets%2C+D+G%3BWiedinmyer%2C+C%3BDiskin%2C+G+S&rft.aulast=Tilmes&rft.aufirst=S&rft.date=2011-02-21&rft.volume=11&rft.issue=2&rft.spage=5935&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics+Discussions&rft.issn=16807367&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2012-03-29 N1 - SubjectsTermNotLitGenreText - Global climate; Fires; Satellite data; Climate models; Atmospheric pollution models; Atmospheric chemistry; Aircraft observations; Arctic ecology; black carbon; Aircraft; anthropogenic factors; altitude; Emission measurements; Emissions; summer; latitude; PN, Arctic; Russia, Siberia; ANE, Europe; INW, Asia; INE, USA, Alaska ER - TY - CPAPER T1 - Kepler Mission Overview and Planet Discoveries T2 - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AN - 1312980031; 6045030 JF - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AU - Borucki, William Y1 - 2011/02/17/ PY - 2011 DA - 2011 Feb 17 KW - Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312980031?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.atitle=Kepler+Mission+Overview+and+Planet+Discoveries&rft.au=Borucki%2C+William&rft.aulast=Borucki&rft.aufirst=William&rft.date=2011-02-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://aaas.confex.com/aaas/2011/webprogram/start.html#srch=method|and|pge|1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Preserving the Planets -- Ours and Others: Planetary Protection in Space Exploration T2 - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AN - 1312979699; 6045188 JF - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AU - Conley, Cassie Y1 - 2011/02/17/ PY - 2011 DA - 2011 Feb 17 KW - Exploration UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312979699?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.atitle=Preserving+the+Planets+--+Ours+and+Others%3A+Planetary+Protection+in+Space+Exploration&rft.au=Conley%2C+Cassie&rft.aulast=Conley&rft.aufirst=Cassie&rft.date=2011-02-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://aaas.confex.com/aaas/2011/webprogram/start.html#srch=method|and|pge|1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Greatest Hits and Grand Challenges in Astrobiology T2 - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AN - 1312979654; 6045187 JF - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AU - Voytek, Mary Y1 - 2011/02/17/ PY - 2011 DA - 2011 Feb 17 KW - Education KW - Technology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312979654?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.atitle=Greatest+Hits+and+Grand+Challenges+in+Astrobiology&rft.au=Voytek%2C+Mary&rft.aulast=Voytek&rft.aufirst=Mary&rft.date=2011-02-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://aaas.confex.com/aaas/2011/webprogram/start.html#srch=method|and|pge|1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Science in Space: Five Agencies Operating in Zero Gravity T2 - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AN - 1312963067; 6044987 JF - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AU - Williams, Sunita Y1 - 2011/02/17/ PY - 2011 DA - 2011 Feb 17 KW - Gravity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312963067?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.atitle=Science+in+Space%3A+Five+Agencies+Operating+in+Zero+Gravity&rft.au=Williams%2C+Sunita&rft.aulast=Williams&rft.aufirst=Sunita&rft.date=2011-02-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://aaas.confex.com/aaas/2011/webprogram/start.html#srch=method|and|pge|1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - International Discoveries of Exoplanets: What We Are Finding Out About Other Worlds T2 - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AN - 1312960393; 6045307 JF - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AU - Traub, Wesley Y1 - 2011/02/17/ PY - 2011 DA - 2011 Feb 17 KW - Education KW - Technology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312960393?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.atitle=International+Discoveries+of+Exoplanets%3A+What+We+Are+Finding+Out+About+Other+Worlds&rft.au=Traub%2C+Wesley&rft.aulast=Traub&rft.aufirst=Wesley&rft.date=2011-02-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://aaas.confex.com/aaas/2011/webprogram/start.html#srch=method|and|pge|1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Parks from Space: The Big Picture and New Indicators Help Manage Protected Areas T2 - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AN - 1312959187; 6044801 JF - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AU - Geller, Gary Y1 - 2011/02/17/ PY - 2011 DA - 2011 Feb 17 KW - protected areas KW - Parks KW - Nature conservation KW - Environmental protection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312959187?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.atitle=Parks+from+Space%3A+The+Big+Picture+and+New+Indicators+Help+Manage+Protected+Areas&rft.au=Geller%2C+Gary&rft.aulast=Geller&rft.aufirst=Gary&rft.date=2011-02-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://aaas.confex.com/aaas/2011/webprogram/start.html#srch=method|and|pge|1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - The Kepler Guest Observer Program T2 - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AN - 1312957262; 6045035 JF - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AU - Still, Martin Y1 - 2011/02/17/ PY - 2011 DA - 2011 Feb 17 KW - Education KW - Technology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312957262?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.atitle=The+Kepler+Guest+Observer+Program&rft.au=Still%2C+Martin&rft.aulast=Still&rft.aufirst=Martin&rft.date=2011-02-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://aaas.confex.com/aaas/2011/webprogram/start.html#srch=method|and|pge|1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Climatic Effects of Regional Nuclear War T2 - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AN - 1312954009; 6044817 JF - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AU - Oman, Luke Y1 - 2011/02/17/ PY - 2011 DA - 2011 Feb 17 KW - Climate KW - war KW - War UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312954009?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.atitle=Climatic+Effects+of+Regional+Nuclear+War&rft.au=Oman%2C+Luke&rft.aulast=Oman&rft.aufirst=Luke&rft.date=2011-02-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://aaas.confex.com/aaas/2011/webprogram/start.html#srch=method|and|pge|1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Between Sound Bites and the Scientific Paper: Communicating in the Hinterland T2 - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AN - 1312903799; 6045000 JF - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AU - Schmidt, Gavin Y1 - 2011/02/17/ PY - 2011 DA - 2011 Feb 17 KW - bites KW - Bites KW - Sound UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312903799?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.atitle=Between+Sound+Bites+and+the+Scientific+Paper%3A+Communicating+in+the+Hinterland&rft.au=Schmidt%2C+Gavin&rft.aulast=Schmidt&rft.aufirst=Gavin&rft.date=2011-02-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://aaas.confex.com/aaas/2011/webprogram/start.html#srch=method|and|pge|1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Impacts of Black Carbon (BC) Pollution on Himalayan Glaciers T2 - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AN - 1312901424; 6045342 JF - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AU - Yasunari, Teppei Y1 - 2011/02/17/ PY - 2011 DA - 2011 Feb 17 KW - glaciers KW - black carbon KW - Pollution KW - Glaciers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312901424?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.atitle=Impacts+of+Black+Carbon+%28BC%29+Pollution+on+Himalayan+Glaciers&rft.au=Yasunari%2C+Teppei&rft.aulast=Yasunari&rft.aufirst=Teppei&rft.date=2011-02-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://aaas.confex.com/aaas/2011/webprogram/start.html#srch=method|and|pge|1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Limiting Near-Term Climate Change While Improving Human Well-Being T2 - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AN - 1312901379; 6045341 JF - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AU - Shindell, Drew Y1 - 2011/02/17/ PY - 2011 DA - 2011 Feb 17 KW - Climatic changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312901379?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.atitle=Limiting+Near-Term+Climate+Change+While+Improving+Human+Well-Being&rft.au=Shindell%2C+Drew&rft.aulast=Shindell&rft.aufirst=Drew&rft.date=2011-02-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://aaas.confex.com/aaas/2011/webprogram/start.html#srch=method|and|pge|1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - Assessment of the CALIPSO Lidar 532 nm attenuated backscatter calibration using the NASA LaRC airborne High Spectral Resolution Lidar AN - 860385268; 14378076 AB - The Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) instrument on the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) spacecraft has provided global, high-resolution vertical profiles of aerosols and clouds since it became operational on 13 June 2006. On 14 June 2006, the NASA Langley Research Center (LaRC) High Spectral Resolution Lidar (HSRL) was deployed aboard the NASA Langley B-200 aircraft for the first of a series of 86 underflights of the CALIPSO satellite to provide validation measurements for the CALIOP data products. To better assess the range of conditions under which CALIOP data products are produced, these validation flights were conducted under both daytime and nighttime lighting conditions, in multiple seasons, and over a large range of latitudes and aerosol and cloud conditions. This paper presents a quantitative assessment of the CALIOP 532 nm calibration (through the 532 nm total attenuated backscatter) using internally calibrated airborne HSRL underflight data and is the most extensive study of CALIOP 532 nm calibration. Results show that HSRL and CALIOP 532 nm total attenuated backscatter agree on average within 2.7% plus or minus 2.1% (CALIOP lower) at night and within 2.9% plus or minus 3.9% (CALIOP lower) during the day, demonstrating the accuracy of the CALIOP 532 nm calibration algorithms. Additionally, comparisons with HSRL show consistency of the CALIOP calibration before and after the laser switch in 2009 as well as improvements in the daytime version 3.01 calibration scheme compared with the version 2 calibration scheme. Potential biases and uncertainties in the methodology relevant to validating satellite lidar measurements with an airborne lidar system are discussed and found to be less than 4.5% plus or minus 3.2% for this validation effort with HSRL. Results from this study are also compared with prior assessments of the CALIOP 532 nm attenuated backscatter calibration. JF - Atmospheric Chemistry and Physics AU - Rogers, R R AU - Hostetler, CA AU - Hair, J W AU - Ferrare, R A AU - Liu, Z AU - Obland, MD AU - Harper, D B AU - Cook, AL AU - Powell, KA AU - Vaughan, MA AD - NASA Langley Research Center, Hampton, VA 23681, USA Y1 - 2011/02/15/ PY - 2011 DA - 2011 Feb 15 SP - 1295 EP - 1311 PB - European Geophysical Society, Max-Planck-Str. 13 Katlenburg-Lindau Germany VL - 11 IS - 3 SN - 1680-7316, 1680-7316 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Remote Sensing KW - Algorithms KW - Calibrations KW - Assessments KW - Aircraft KW - Seasonal variability KW - Satellite Technology KW - Aerosols KW - Backscatter KW - Aircraft observations KW - Aerosols-cloud relationships KW - Polarization KW - Vertical profiles KW - Clouds KW - Lidar applications KW - Atmospheric chemistry KW - Lasers KW - LIDAR KW - SW 5010:Network design KW - AQ 00007:Industrial Effluents KW - M2 551.510.42:Air Pollution (551.510.42) KW - Q2 09182:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/860385268?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Chemistry+and+Physics&rft.atitle=Assessment+of+the+CALIPSO+Lidar+532+nm+attenuated+backscatter+calibration+using+the+NASA+LaRC+airborne+High+Spectral+Resolution+Lidar&rft.au=Rogers%2C+R+R%3BHostetler%2C+CA%3BHair%2C+J+W%3BFerrare%2C+R+A%3BLiu%2C+Z%3BObland%2C+MD%3BHarper%2C+D+B%3BCook%2C+AL%3BPowell%2C+KA%3BVaughan%2C+MA&rft.aulast=Rogers&rft.aufirst=R&rft.date=2011-02-15&rft.volume=11&rft.issue=3&rft.spage=1295&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics&rft.issn=16807316&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2016-04-29 N1 - SubjectsTermNotLitGenreText - Aerosols; Backscatter; Atmospheric chemistry; Polarization; LIDAR; Vertical profiles; Clouds; Aircraft observations; Lidar applications; Algorithms; Aerosols-cloud relationships; Lasers; Seasonal variability; Remote Sensing; Satellite Technology; Aircraft; Assessments; Calibrations ER - TY - JOUR T1 - Perspective on space radiation for space flights in 2020-2040 AN - 1777168183; 14364851 AB - The Sun undergoes several well known periodicities in activity, such as the Schwabe 11year cycle, the Gleissberg 80-90year cycle, the Suess 200-210year cycle and the Halstatt 2200-2300year cycle. In addition, there is evidence that the 20th century levels of solar activity are unusually high. The years 2020-2040 are expected to coincide with increased activity in human space flight beyond low Earth orbit. The solar cycles and the present level of solar activity are reviewed and their activities during the years 2020-2040 are discussed with a perspective on space radiation and the future program of space flight. It is prudent to prepare for continuing levels of high solar activity as well as for the low levels of the current deep minimum, which has corresponded to high galactic cosmic ray flux. JF - Advances in Space Research AU - Norbury, John W AD - NASA Langley Research Center, Hampton, Virginia 23681, USA john.w.norbury@nasa.gov Y1 - 2011/02/15/ PY - 2011 DA - 2011 Feb 15 SP - 611 EP - 621 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 47 IS - 4 SN - 0273-1177, 0273-1177 KW - Environmental Engineering Abstracts (EN); Aerospace & High Technology Database (AH) KW - Solar particle events KW - Solar activity KW - Galactic cosmic rays KW - Space radiation KW - Space flight KW - Low earth orbits KW - Flux KW - Human KW - Sun KW - Low level UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777168183?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Space+Research&rft.atitle=Perspective+on+space+radiation+for+space+flights+in+2020-2040&rft.au=Norbury%2C+John+W&rft.aulast=Norbury&rft.aufirst=John&rft.date=2011-02-15&rft.volume=47&rft.issue=4&rft.spage=611&rft.isbn=&rft.btitle=&rft.title=Advances+in+Space+Research&rft.issn=02731177&rft_id=info:doi/10.1016%2Fj.asr.2010.10.012 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.asr.2010.10.012 ER - TY - JOUR T1 - Statistical validation of HZETRN as a function of vertical cutoff rigidity using ISS measurements AN - 1777167603; 14364852 AB - Measurements taken in Low Earth Orbit (LEO) onboard the International Space Station (ISS) and transit vehicles have been extensively used to validate radiation transport models. Primarily, such comparisons were done by integrating measured data over mission or trajectory segments so that individual comparisons to model results could be made. This approach has yielded considerable information but is limited in its ability to rigorously quantify and differentiate specific model errors or uncertainties. Further, as exploration moves beyond LEO and measured data become sparse, the uncertainty estimates derived from these validation cases will no longer be applicable. Recent improvements in the underlying numerical methods used in HZETRN have resulted in significant decreases in code run time. Therefore, the large number of comparisons required to express error as a function of a physical quantity, like cutoff rigidity, are now possible. Validation can be looked at in detail over any portion of a flight trajectory (e.g. minute by minute) such that a statistically significant number of comparisons can be made. This more rigorous approach to code validation will allow the errors caused by uncertainties in the geometry models, environmental models, and nuclear physics models to be differentiated and quantified. It will also give much better guidance for future model development. More importantly, it will allow a quantitative means of extrapolating uncertainties in LEO to free space. In this work, measured data taken onboard the ISS during solar maximum are compared to results obtained with the particle transport code HZETRN. Comparisons are made at a large number (a arrow right 477,000) of discrete time intervals, allowing error estimates to be given as a function of cutoff rigidity. It is shown that HZETRN systematically underestimates exposure quantities at high cutoff rigidity. The errors are likely associated with increased angular variation in the geomagnetic field near the equator, the lack of pion production in HZETRN, and errors in high energy nuclear physics models, and will be the focus of future work. JF - Advances in Space Research AU - Slaba, Tony C AU - Blattnig, Steve R AU - Badavi, Francis F AU - Stoffle, Nicholas N AU - Rutledge, Robert D AU - Lee, Kerry T AU - Neal Zapp, E AU - Dachev, Tsvetan P AU - Tomov, Borislav T AD - NASA Langley Research Center, Hampton, VA 23681, USA Y1 - 2011/02/15/ PY - 2011 DA - 2011 Feb 15 SP - 600 EP - 610 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 47 IS - 4 SN - 0273-1177, 0273-1177 KW - Environmental Engineering Abstracts (EN); Aerospace & High Technology Database (AH) KW - HZETRN KW - Low Earth Orbit KW - Space radiation KW - International Space Station KW - Radiation shielding KW - Transport KW - Uncertainty KW - Mathematical models KW - Rigidity KW - Permissible error KW - Trajectories KW - Onboard KW - Mathematical analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777167603?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Space+Research&rft.atitle=Statistical+validation+of+HZETRN+as+a+function+of+vertical+cutoff+rigidity+using+ISS+measurements&rft.au=Slaba%2C+Tony+C%3BBlattnig%2C+Steve+R%3BBadavi%2C+Francis+F%3BStoffle%2C+Nicholas+N%3BRutledge%2C+Robert+D%3BLee%2C+Kerry+T%3BNeal+Zapp%2C+E%3BDachev%2C+Tsvetan+P%3BTomov%2C+Borislav+T&rft.aulast=Slaba&rft.aufirst=Tony&rft.date=2011-02-15&rft.volume=47&rft.issue=4&rft.spage=600&rft.isbn=&rft.btitle=&rft.title=Advances+in+Space+Research&rft.issn=02731177&rft_id=info:doi/10.1016%2Fj.asr.2010.10.021 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.asr.2010.10.021 ER - TY - JOUR T1 - Assessment of MODIS NDVI time series data products for detecting forest defoliation by gypsy moth outbreaks AN - 1777130588; 14207880 AB - This paper discusses an assessment of Moderate Resolution Imaging Spectroradiometer (MODIS) time-series data products for detecting forest defoliation from European gypsy moth (Lymantria dispar). This paper describes an effort to aid the United States Department of Agriculture (USDA) Forest Service in developing and assessing MODIS-based gypsy moth defoliation detection products and methods that could be applied in near real time without intensive field survey data collection as a precursor. In our study, MODIS data for 2000-2006 were processed for the mid-Appalachian highland region of the United States. Gypsy moth defoliation maps showing defoliated forests versus non-defoliated areas were produced from temporally filtered and composited MOD02 and MOD13 data using unsupervised classification and image thresholding of maximum value normalized difference vegetation index (NDVI) datasets computed for the defoliation period (June 10-July 27) of 2001 and of the entire time series. These products were validated by comparing stratified random sample locations to relevant Landsat and Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) reference data sets. Composites of 250 m daily MOD02 outperformed 16-day MOD13 data in terms of classifying forest defoliation, showing a lower omission error rate (0.09 versus 0.56), a similar Kappa (0.67 versus 0.79), a comparable commission error rate (0.22 versus 0.14), and higher overall classification agreement (88 versus 79%). Results suggest that temporally processed MODIS time-series data can detect with good agreement to available reference data the extent and location of historical regional gypsy moth defoliation patches of 0.25 km2 or more for 250-meter products. The temporal processing techniques used in this study enabled effective broad regional, "wall to wall" gypsy moth defoliation detection products for a 6.2million ha region that were not produced previously with either MODIS or other satellite data. This study provides new, previously unavailable information on the relative agreement of temporally processed, gypsy moth defoliation detection products from MODIS NDVI time series data with respect to higher spatial resolution Landsat and ASTER data. These results also provided needed timely information on the potential of MODIS data for contributing near real time defoliation products to a USDA Forest Service Forest Threat Early Warning System. JF - Remote Sensing of Environment AU - Spruce, Joseph P AU - Sader, Steven AU - Ryan, Robert E AU - Smoot, James AU - Kuper, Philip AU - Ross, Kenton AU - Prados, Donald AU - Russell, Jeffrey AU - Gasser, Gerald AU - McKellip, Rodney AU - Hargrove, William AD - Computer Sciences Corporation, John C. Stennis Space Center, Mississippi, formerly with Science Systems and Applications, Inc., John C. Stennis Space Center, Mississippi, United States joseph.p.spruce@nasa.gov joseph.p.spruce@nasa.gov Y1 - 2011/02/15/ PY - 2011 DA - 2011 Feb 15 SP - 427 EP - 437 PB - Elsevier Science, Box 882 New York NY 10159 USA VL - 115 IS - 2 SN - 0034-4257, 0034-4257 KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE); Aerospace & High Technology Database (AH) KW - MODIS NDVI time series data KW - Gypsy moth KW - Regional forest defoliation detection products KW - Defoliation classification accuracy KW - National forest threat early warning system KW - Temporal data processing KW - Walls KW - Classification KW - Assessments KW - Time series KW - Forests KW - Defoliation KW - Moths KW - MODIS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777130588?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remote+Sensing+of+Environment&rft.atitle=Assessment+of+MODIS+NDVI+time+series+data+products+for+detecting+forest+defoliation+by+gypsy+moth+outbreaks&rft.au=Spruce%2C+Joseph+P%3BSader%2C+Steven%3BRyan%2C+Robert+E%3BSmoot%2C+James%3BKuper%2C+Philip%3BRoss%2C+Kenton%3BPrados%2C+Donald%3BRussell%2C+Jeffrey%3BGasser%2C+Gerald%3BMcKellip%2C+Rodney%3BHargrove%2C+William&rft.aulast=Spruce&rft.aufirst=Joseph&rft.date=2011-02-15&rft.volume=115&rft.issue=2&rft.spage=427&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&rft_id=info:doi/10.1016%2Fj.rse.2010.09.013 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.rse.2010.09.013 ER - TY - JOUR T1 - Observed and simulated water and energy budget components at SCAN sites in the lower Mississippi Basin AN - 1017966730; 16698809 AB - Land surface models are typically constrained by one or a few observed variables, while assuming that the internal water and energy partitioning is sensitive to those observed variables and realistic enough to simulate unobserved variables. To verify these assumptions, in situ soil climate analysis network (SCAN) observations in the Lower Mississippi Basin (2002-2008) are analysed to quantify water and energy budget components and they are compared to Community Land Model (CLM3?5) simulations. The local soil texture is identified as a major indicator for water storage characteristics and the Normalized Difference Vegetation Index shows potential as a drought indicator in summer months. Both observations and simulations indicate a regime where, except in some summer months, evapotranspiration controls soil moisture. CLM simulations with different soil texture assignments show discharge sensitivity to soil moisture, but almost no impact on evapotranspiration and other energy balance components. The observed and simulated water budgets show a similar partitioning. However, the SCAN observed water balance does not close because of precipitation measurement errors, unobserved irrigation, lack of specific storage change measurements and errors in the computed actual evapotranspiration. The simulated heat flux partitioning differs from that 'observed', with a larger (resp. smaller) fraction of net radiation being used by latent (resp. sensible) heat flux, and unobserved freeze and thaw events. The comparison between observations and model simulations suggests that a consistent observation collection for multiple variables would be needed to constrain and improve the full set of land surface variable estimates. JF - Hydrological Processes AU - De Lannoy, Gabrielle J M AU - Ufford, Julie AU - Sahoo, Alok K AU - Dirmeyer, Paul AU - Houser, Paul R AD - George Mason University and Center for Research on Environment and Water, 4041 Powder Mill Road, Suite 302, Calverton, MD 20705-3106, USA, Gabrielle.DeLannoy@nasa.gov Y1 - 2011/02/15/ PY - 2011 DA - 2011 Feb 15 SP - 634 EP - 649 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 25 IS - 4 SN - 1099-1085, 1099-1085 KW - Environment Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts KW - Soil Texture KW - Indicators KW - Hydrologic Budget KW - Soil texture KW - Basins KW - Summer KW - Soil Water KW - Freshwater KW - Soil KW - Hydrologic Models KW - Irrigation KW - Storage life KW - Environmental impact KW - River discharge KW - Simulation KW - Evapotranspiration KW - Energy budget KW - Ecosystem disturbance KW - Storage KW - Water balance KW - Energy balance KW - Heat KW - Energy KW - USA, Mississippi KW - Soil moisture KW - Fluctuations KW - ENA 03:Energy KW - AQ 00001:Water Resources and Supplies KW - Q2 09146:TSD distribution, water masses and circulation KW - SW 1060:Conservation in agricultural use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1017966730?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrological+Processes&rft.atitle=Observed+and+simulated+water+and+energy+budget+components+at+SCAN+sites+in+the+lower+Mississippi+Basin&rft.au=De+Lannoy%2C+Gabrielle+J+M%3BUfford%2C+Julie%3BSahoo%2C+Alok+K%3BDirmeyer%2C+Paul%3BHouser%2C+Paul+R&rft.aulast=De+Lannoy&rft.aufirst=Gabrielle+J&rft.date=2011-02-15&rft.volume=25&rft.issue=4&rft.spage=634&rft.isbn=&rft.btitle=&rft.title=Hydrological+Processes&rft.issn=10991085&rft_id=info:doi/10.1002%2Fhyp.7855 L2 - http://onlinelibrary.wiley.com/doi/10.1002/hyp.7855/abstract LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-05-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Water balance; Energy balance; Storage life; Irrigation; River discharge; Environmental impact; Evapotranspiration; Ecosystem disturbance; Energy budget; Soil; Storage; Basins; Soil texture; Simulation; Summer; Soil moisture; Hydrologic Models; Soil Texture; Heat; Energy; Indicators; Hydrologic Budget; Soil Water; Fluctuations; USA, Mississippi; Freshwater DO - http://dx.doi.org/10.1002/hyp.7855 ER - TY - NEWS T1 - NASA Spacecraft Closes In On Comet Tempel 1 AN - 851444898 JF - UPI Space Daily AU - Dauna Coulter for NASA Science News Y1 - 2011/02/14/ PY - 2011 DA - 2011 Feb 14 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/851444898?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apqrl&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=UPI+Space+Daily&rft.atitle=NASA+Spacecraft+Closes+In+On+Comet+Tempel+1&rft.au=Dauna+Coulter+for+NASA+Science+News&rft.aulast=Dauna+Coulter+for+NASA+Science+News&rft.aufirst=&rft.date=2011-02-14&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=UPI+Space+Daily&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2011-07-21 ER - TY - JOUR T1 - NON-DETECTION OF L-BAND LINE EMISSION FROM THE EXOPLANET HD189733b AN - 920793281; 16203966 AB - We attempt to confirm bright non-local thermodynamic equilibrium (non-LTE) emission from the exoplanet HD 189733b at 3.25 Delta *mm, as recently reported by Swain et al. based on observations at low spectral resolving power ( Delta *l/ Delta *d Delta *l 30). Non-LTE emission lines from gas in an exoplanet atmosphere will not be significantly broadened by collisions, so the measured emission intensity per resolution element must be substantially brighter when observed at high spectral resolving power. We observed the planet before, during, and after a secondary eclipse event at a resolving power Delta *l/ Delta *d Delta *l = 2,000 using the NIRSPEC spectrometer on the Keck II telescope. Our spectra cover a spectral window near the peak found by Swain et al., and we compare emission cases that could account for the magnitude and wavelength dependence of the Swain et al. result with our final spectral residuals. To model the expected line emission, we use a general non-equilibrium formulation to synthesize emission features from all plausible molecules that emit in this spectral region. In every case, we detect no line emission to a high degree of confidence. After considering possible explanations for the Swain et al. results and the disparity with our own data, we conclude that an astrophysical source for the putative non-LTE emission is unlikely. We note that the wavelength dependence of the signal seen by Swain et al. closely matches the 2 Delta *n2 band of water vapor at 300 K, and we suggest that an imperfect correction for telluric water is the source of the feature claimed by Swain et al. JF - Astrophysical Journal AU - Mandell, Avi M Y1 - 2011/02/10/ PY - 2011 DA - 2011 Feb 10 PB - Institute of Physics Publishing Inc., The Public Ledger Building, Suite 929 Philadelphia PA 19106 United States IS - 1 SN - 0004-637X, 0004-637X KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - Telescopes KW - Atmospheric pollution models KW - Thermodynamics KW - Water vapor KW - Emissions KW - Thermodynamics of the atmosphere KW - Atmosphere KW - P 0000:AIR POLLUTION KW - M2 523.4:Planets (523.4) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/920793281?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrophysical+Journal&rft.atitle=NON-DETECTION+OF+L-BAND+LINE+EMISSION+FROM+THE+EXOPLANET+HD189733b&rft.au=Mandell%2C+Avi+M&rft.aulast=Mandell&rft.aufirst=Avi&rft.date=2011-02-10&rft.volume=&rft.issue=1&rft.spage=jQuery1323911171942%3D%2748%27%3E&rft.isbn=&rft.btitle=&rft.title=Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F728%2F1%2F18 L2 - http://iopscience.iop.org/0004-637X/728/1/18 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-02-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Telescopes; Atmospheric pollution models; Thermodynamics of the atmosphere; Thermodynamics; Water vapor; Emissions; Atmosphere DO - http://dx.doi.org/10.1088/0004-637X/728/1/18 ER - TY - JOUR T1 - Algebraic/transcendental disturbance growth behind a row of roughness elements AN - 861539555; 14265358 AB - This paper is a continuation of the work begun in Goldstein et al. (J. Fluid Mech., vol. 644, 2010, p. 123), who constructed an asymptotic high-Reynolds-number solution for the flow over a spanwise periodic array of relatively small roughness elements with (spanwise) separation and plan form dimensions of the order of the local boundary-layer thickness. While that paper concentrated on the linear problem, here the focus is on the case where the flow is nonlinear in the immediate vicinity of the roughness with emphasis on the intermediate wake region corresponding to streamwise distances that are large in comparison with the roughness dimension, but small in comparison with the distance between the roughness array and the leading edge. An analytical O(h2) asymptotic solution is obtained for the limiting case of a small roughness height parameter h. These weakly nonlinear results show that the spanwise variable component of the wall-pressure perturbation decays as x???5/3 ln x when x ??? ??? (where x denotes the streamwise distance scaled on the roughness dimension), but the corresponding component of the streamwise velocity perturbation (i.e. the wake velocity) exhibits an O(x1/3 ln x) algebraic/transcendental growth in the main boundary layer. Numerical solutions for h = O(1) demonstrate that the wake velocity perturbation for the fully nonlinear case grows in the same manner as the weakly nonlinear prediction ??? which is considerably different from the strictly linear result obtained in Goldstein et al. (2010). JF - Journal of Fluid Mechanics AU - Goldstein, Me AU - SESCU, ADRIAN AU - Duck, Peter W AU - CHOUDHARI, MEELAN AD - Department of Mechanical Industrial and Manufacturing Engineering, University of Toledo, Toledo, OH 43606, USA, Marvin.E.Goldstein@nasa.gov Y1 - 2011/02/10/ PY - 2011 DA - 2011 Feb 10 SP - 236 EP - 266 PB - Cambridge University Press, The Edinburgh Building, Cambridge CB2 2RU UK VL - 668 SN - 0022-1120, 0022-1120 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Prediction KW - Fluid mechanics KW - Growth KW - Boundary layers KW - Boundary Layers KW - Velocity KW - Fluid Mechanics KW - Q2 09165:Benthic boundary layer KW - SW 6050:Rock mechanics and geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/861539555?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Fluid+Mechanics&rft.atitle=Algebraic%2Ftranscendental+disturbance+growth+behind+a+row+of+roughness+elements&rft.au=Goldstein%2C+Me%3BSESCU%2C+ADRIAN%3BDuck%2C+Peter+W%3BCHOUDHARI%2C+MEELAN&rft.aulast=Goldstein&rft.aufirst=Me&rft.date=2011-02-10&rft.volume=668&rft.issue=&rft.spage=236&rft.isbn=&rft.btitle=&rft.title=Journal+of+Fluid+Mechanics&rft.issn=00221120&rft_id=info:doi/10.1017%2FS0022112010004726 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-09-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - Fluid mechanics; Growth; Boundary layers; Prediction; Boundary Layers; Velocity; Fluid Mechanics DO - http://dx.doi.org/10.1017/S0022112010004726 ER - TY - JOUR T1 - Global multi-year O sub(3)-CO correlation patterns from models and TES satellite observations AN - 860377304; 14432284 AB - The correlation between measured tropospheric ozone (O sub(3)) and carbon monoxide (CO) has been used extensively in tropospheric chemistry studies to explore the photochemical characteristics of different regions and to evaluate the ability of models to capture these characteristics. Here, we present the first study that uses multi-year, global, vertically resolved, simultaneous and collocated O sub(3) and CO satellite (Tropospheric Emission Spectrometer) measurements, to determine this correlation in the middle/lower free troposphere for two different seasons, and to evaluate two chemistry-climate models. We find results that are fairly robust across different years, altitudes and timescales considered, which indicates that the correlation maps presented here could be used as benchmarks in future studies. The highest positive correlations (around 0.8) are found in the Northern Pacific during summer, which is a common feature in the observations and the G-PUCCINI model. We make quantitative comparisons between the models using a single-figure metric (C), which we define as the correlation coefficient between the modeled and the observed O sub(3)-CO correlations for different regions of the globe. On a global scale, the G-PUCCINI model shows a good performance in the summer (C=0.71) and a satisfactory performance in the winter (C=0.52). It captures midlatitude features very well, especially in the summer, whereas the performance in regions like South America or Central Africa is weaker. The UKCA model (C=0.46/0.15 for July-August/December-January on a global scale) performs better in certain regions, such as the tropics in winter, and it captures some of the broad characteristics of summer extratropical correlations, but it systematically underestimates the O sub(3)-CO correlations over much of the globe. It is noteworthy that the correlations look very different in the two models, even though the ozone distributions are similar. This demonstrates that this technique provides a powerful global constraint for understanding modeled tropospheric chemical processes. We investigated the sources of the correlations by performing a series of sensitivity experiments. In these, the sign of the correlation is, in most cases, insensitive to removing different individual emissions, but its magnitude changes downwind of emission regions when applying such perturbations. Interestingly, we find that the O sub(3)-CO correlation does not solely reflect the strength of O sub(3) photochemical production, as often assumed by earlier studies, but is more complicated and reflects a mixture of different processes such as transport. JF - Atmospheric Chemistry and Physics Discussions AU - Voulgarakis, A AU - Telford, P J AU - Aghedo, A M AU - Braesicke, P AU - Faluvegi, G AU - Abraham, N L AU - Bowman, K W AU - Pyle, JA AU - Shindell, D T AD - NASA Goddard Institute for Space Studies and Columbia University, Center for Climate Systems Research, New York, USA Y1 - 2011/02/10/ PY - 2011 DA - 2011 Feb 10 SP - 5079 EP - 5125 PB - European Geosciences Union, c/o E.O.S.T. Strasbourg Cedex 67084 France VL - 11 IS - 2 SN - 1680-7367, 1680-7367 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Photochemistry KW - Correlation Coefficient KW - Atmospheric pollution models KW - Correlations KW - Remote sensing KW - Maps KW - Carbon monoxide KW - Ozone in troposphere KW - Altitude KW - Carbon KW - Atmospheric chemistry models KW - Seasonal variability KW - IN, Pacific KW - Spectrometers KW - Ozone KW - Modelling KW - Atmospheric Chemistry KW - Troposphere KW - Satellite instrumentation KW - Model Studies KW - Tropospheric chemistry KW - Satellite sensing KW - ASW, South America KW - Performance Evaluation KW - Atmospheric chemistry KW - Africa KW - AQ 00001:Water Resources and Supplies KW - M2 551.510.42:Air Pollution (551.510.42) KW - Q2 09188:Atmospheric chemistry KW - SW 0540:Properties of water UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/860377304?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Chemistry+and+Physics+Discussions&rft.atitle=Global+multi-year+O+sub%283%29-CO+correlation+patterns+from+models+and+TES+satellite+observations&rft.au=Voulgarakis%2C+A%3BTelford%2C+P+J%3BAghedo%2C+A+M%3BBraesicke%2C+P%3BFaluvegi%2C+G%3BAbraham%2C+N+L%3BBowman%2C+K+W%3BPyle%2C+JA%3BShindell%2C+D+T&rft.aulast=Voulgarakis&rft.aufirst=A&rft.date=2011-02-10&rft.volume=11&rft.issue=2&rft.spage=5079&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics+Discussions&rft.issn=16807367&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2015-01-21 N1 - SubjectsTermNotLitGenreText - Photochemistry; Carbon monoxide; Satellite sensing; Atmospheric chemistry; Remote sensing; Troposphere; Modelling; Ozone; Ozone in troposphere; Atmospheric pollution models; Atmospheric chemistry models; Correlations; Seasonal variability; Satellite instrumentation; Tropospheric chemistry; Atmospheric Chemistry; Correlation Coefficient; Altitude; Performance Evaluation; Carbon; Maps; Spectrometers; Model Studies; ASW, South America; Africa; IN, Pacific ER - TY - JOUR T1 - Molecular assessment of UVC radiation-induced DNA damage repair in the stromatolitic halophilic archaeon, Halococcus hamelinensis AN - 856789548; 14351633 AB - The halophilic archaeon Halococcus hamelinensis was isolated from living stromatolites in Shark Bay, Western Australia, that are known to be exposed to extreme conditions of salinity, desiccation, and UV radiation. Modern stromatolites are considered analogues of very early life on Earth and thus inhabitants of modern stromatolites, and Hcc. hamelinensis in particular, are excellent candidates to examine responses to high UV radiation. This organism was exposed to high dosages (up to 500 J/m super(2)) of standard germicidal UVC (254 nm) radiation and overall responses such as survival, thymine-thymine cyclobutane pyrimidine dimer formation, and DNA repair have been assessed. Results show that Hcc. hamelinensis is able to survive high UVC radiation dosages and that intact cells give an increased level of DNA protection over purified DNA. The organism was screened for the bacterial-like nucleotide excision repair (NER) genes uvrA, uvrB, uvrC, as well as for the photolyase phr2 gene. All four genes were discovered and changes in the expression levels of those genes during repair in either light or dark were investigated by means of quantitative Real-Time (qRT) PCR. The data obtained and presented in this study show that the uvrA, uvrB, and uvrC genes were up-regulated during both repair conditions. The photolyase phr2 was not induced during dark repair, yet showed a 20-fold increase during repair in light conditions. The data presented is the first molecular study of different repair mechanisms in the genus Halococcus following exposure to high UVC radiation levels. JF - Journal of Photochemistry and Photobiology B: Biology AU - Leuko, S AU - Neilan, BA AU - Burns, B P AU - Walter, M R AU - Rothschild, L J AD - NASA Ames Research Center, Mail Stop 239-20, Moffett Field, CA 94035-1000, USA Y1 - 2011/02/07/ PY - 2011 DA - 2011 Feb 07 SP - 140 EP - 145 PB - Elesevier Sequoia S.A. VL - 102 IS - 2 SN - 1011-1344, 1011-1344 KW - Microbiology Abstracts B: Bacteriology; Toxicology Abstracts; Oceanic Abstracts; Biochemistry Abstracts 2: Nucleic Acids; ASFA 1: Biological Sciences & Living Resources KW - Halophilic archaea KW - DNA damage KW - Repair mechanisms KW - UVC radiation KW - Astrobiology KW - Photochemistry KW - ISW, Australia, Western Australia KW - Nucleotide sequence KW - Stromatolites KW - Marine fish KW - U.V. radiation KW - Pyrimidines KW - Nucleotide excision repair KW - Salinity effects KW - Ultraviolet radiation KW - Polymerase chain reaction KW - Desiccation KW - Marine KW - ISW, Australia, Western Australia, Shark Bay KW - Data processing KW - DNA repair KW - Nucleotides KW - Cyclobutane pyrimidine dimers KW - Halococcus KW - DNA KW - Photolyase KW - X 24390:Radioactive Materials KW - Q1 08206:Physiology, biochemistry, biophysics KW - N 14820:DNA Metabolism & Structure KW - J 02320:Cell Biology KW - O 1050:Vertebrates, Urochordates and Cephalochordates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/856789548?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Photochemistry+and+Photobiology+B%3A+Biology&rft.atitle=Molecular+assessment+of+UVC+radiation-induced+DNA+damage+repair+in+the+stromatolitic+halophilic+archaeon%2C+Halococcus+hamelinensis&rft.au=Leuko%2C+S%3BNeilan%2C+BA%3BBurns%2C+B+P%3BWalter%2C+M+R%3BRothschild%2C+L+J&rft.aulast=Leuko&rft.aufirst=S&rft.date=2011-02-07&rft.volume=102&rft.issue=2&rft.spage=140&rft.isbn=&rft.btitle=&rft.title=Journal+of+Photochemistry+and+Photobiology+B%3A+Biology&rft.issn=10111344&rft_id=info:doi/10.1016%2Fj.jphotobiol.2010.10.002 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-03-01 N1 - Last updated - 2016-04-13 N1 - SubjectsTermNotLitGenreText - Photochemistry; Marine fish; Pyrimidines; Nucleotide sequence; Ultraviolet radiation; DNA; Desiccation; Stromatolites; Nucleotides; DNA damage; U.V. radiation; Data processing; Nucleotide excision repair; Cyclobutane pyrimidine dimers; Salinity effects; Polymerase chain reaction; Photolyase; DNA repair; Halococcus; ISW, Australia, Western Australia, Shark Bay; ISW, Australia, Western Australia; Marine DO - http://dx.doi.org/10.1016/j.jphotobiol.2010.10.002 ER - TY - NEWS T1 - NASA exhibit greets cruisers in Grand Turk AN - 849276489 AB - Former astronaut Winston Scott and John F. Kennedy Space Center deputy director Janet Petro were on hand Jan. 28 for the grand opening of the new attraction, which commemorates the island's connection to NASA's Mercury space program. In 1962, the Mercury capsule piloted by astronaut John Glenn splashed down just a few miles off the coast of the island. JF - Gannett News Service AU - Gene SloanWarm weather AU - sparkling beaches aren't the only draws for cruisers visiting Grand Turk As of this week AU - the island also is home to a NASA exhibit Y1 - 2011/02/03/ PY - 2011 DA - 2011 Feb 03 CY - McLean KW - General Interest Periodicals--United States UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/849276489?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Anorthcentralnews&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Gannett+News+Service&rft.atitle=NASA+exhibit+greets+cruisers+in+Grand+Turk&rft.au=Gene+SloanWarm+weather%3Bsparkling+beaches+aren%27t+the+only+draws+for+cruisers+visiting+Grand+Turk+As+of+this+week%3Bthe+island+also+is+home+to+a+NASA+exhibit&rft.aulast=Gene+SloanWarm+weather&rft.aufirst=&rft.date=2011-02-03&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Gannett+News+Service&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Name - National Aeronautics & Space Administration N1 - Copyright - Copyright USA Today, a division of Gannett Satellite Information Network, Inc. Feb 3, 2011 N1 - Last updated - 2011-02-04 ER - TY - JOUR T1 - Transcriptional and Proteomic Responses of Pseudomonas aeruginosa PAO1 to Spaceflight Conditions Involve Hfq Regulation and Reveal a Role for Oxygen AN - 907150842; 14344904 AB - Assessing bacterial behavior in microgravity is important for risk assessment and prevention of infectious diseases during spaceflight missions. Furthermore, this research field allows the unveiling of novel connections between low-fluid-shear regions encountered by pathogens during their natural infection process and bacterial virulence. This study is the first to characterize the spaceflight-induced global transcriptional and proteomic responses of Pseudomonas aeruginosa, an opportunistic pathogen that is present in the space habitat. P. aeruginosa responded to spaceflight conditions through differential regulation of 167 genes and 28 proteins, with Hfq as a global transcriptional regulator. Since Hfq was also differentially regulated in spaceflight-grown Salmonella enterica serovar Typhimurium, Hfq represents the first spaceflight-induced regulator acting across bacterial species. The major P. aeruginosa virulence-related genes induced in spaceflight were the lecA and lecB lectin genes and the gene for rhamnosyltransferase (rhlA), which is involved in rhamnolipid production. The transcriptional response of spaceflight-grown P. aeruginosa was compared with our previous data for this organism grown in microgravity analogue conditions using the rotating wall vessel (RWV) bioreactor. Interesting similarities were observed, including, among others, similarities with regard to Hfq regulation and oxygen metabolism. While RWV-grown P. aeruginosa mainly induced genes involved in microaerophilic metabolism, P. aeruginosa cultured in spaceflight presumably adopted an anaerobic mode of growth, in which denitrification was most prominent. Whether the observed changes in pathogenesis-related gene expression in response to spaceflight culture could lead to an alteration of virulence in P. aeruginosa remains to be determined and will be important for infectious disease risk assessment and prevention, both during spaceflight missions and for the general public. JF - Applied and Environmental Microbiology AU - Crabbe, Aurelie AU - Schurr, Michael J AU - Monsieurs, Pieter AU - Morici, Lisa AU - Schurr, Jill AU - Wilson, James W AU - Ott, CMark AU - Tsaprailis, George AU - Pierson, Duane L AU - Stefanyshyn-Piper, Heidi AD - Astronaut Office, NASA-Johnson Space Center, Houston, Texas, cheryl.nickerson@asu.edu Y1 - 2011/02// PY - 2011 DA - Feb 2011 SP - 1221 EP - 1230 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA VL - 77 IS - 4 SN - 0099-2240, 0099-2240 KW - Microbiology Abstracts B: Bacteriology KW - Bioreactors KW - Space flight KW - Pseudomonas aeruginosa KW - J:02320 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/907150842?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Transcriptional+and+Proteomic+Responses+of+Pseudomonas+aeruginosa+PAO1+to+Spaceflight+Conditions+Involve+Hfq+Regulation+and+Reveal+a+Role+for+Oxygen&rft.au=Crabbe%2C+Aurelie%3BSchurr%2C+Michael+J%3BMonsieurs%2C+Pieter%3BMorici%2C+Lisa%3BSchurr%2C+Jill%3BWilson%2C+James+W%3BOtt%2C+CMark%3BTsaprailis%2C+George%3BPierson%2C+Duane+L%3BStefanyshyn-Piper%2C+Heidi&rft.aulast=Crabbe&rft.aufirst=Aurelie&rft.date=2011-02-01&rft.volume=77&rft.issue=4&rft.spage=1221&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/10.1128%2FAEM.01582-10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Number of references - 1 N1 - Last updated - 2014-02-21 N1 - SubjectsTermNotLitGenreText - Space flight; Pseudomonas aeruginosa DO - http://dx.doi.org/10.1128/AEM.01582-10 ER - TY - JOUR T1 - High-resolution stalagmite reconstructions of Australian-Indonesian monsoon rainfall variability during Heinrich stadial 3 and Greenland interstadial 4 AN - 877845394; 2011-058791 AB - Little is known about the possible teleconnections between abrupt climatic changes originating in the North Atlantic and precipitation dynamics in the Australian-Indonesian summer monsoon (AISM) domain. We examine the climatic impacts of Heinrich stadial 3 (HS3) and Greenland interstadials 4 and 3 (GIS4/3) on AISM-associated precipitation through a high-resolution analysis of stable isotope (delta (super 18) O, delta (super 13) C) and trace element (Mg/Ca, P/Ca) ratios in a stalagmite from Liang Luar cave, Flores, Indonesia. Sixteen high precision (super 230) Th dates indicate that stalagmite LR07-E1 grew rapidly ( approximately 0.3-1.0 mm/yr) in two phases between approximately 31.5-30.1 ka and approximately 27.8-25.6 ka, separated by a approximately 2.3 kyr unconformity. Temporally consistent abrupt responses occur in the Flores record during HS3 and GIS4, which are coherent with changes in stalagmite delta (super 18) O records from China and Brazil. The response of low-latitude precipitation to HS3 cooling and GIS4 warming, as demonstrated by the widely separated sites, comprises three distinct simplified phases: (1) a strong southward migration of the ITCZ during HS3 is associated with a decrease in rainfall at Liang Luar cave and in China, while wetter conditions are reconstructed from Brazil, (2) represents the peak of HS3 impacts and an extended hiatus begins in the Flores record and (3) where suggested dry conditions at Liang Luar throughout GIS4 form part of a coherent north-south anti-phasing in precipitation changes. The reconstructed changes are also broadly consistent with NASA GISS ModelE-R simulations of a Heinrich-like freshwater perturbation in the North Atlantic basin, which produces a southward shift in the ITCZ. The relationship between the palaeoclimate records indicates that atmospheric teleconnections rapidly propagate and synchronise climate change across the hemispheres during periods of abrupt climate change. Our findings augment recent proposals that large-scale atmospheric re-organisations during stadials and interstadials play a key role in driving changes in atmospheric CO (sub 2) concentration, air temperature and global climate change. JF - Earth and Planetary Science Letters AU - Lewis, Sophie C AU - Gagan, Michael K AU - Ayliffe, Linda K AU - Zhao, Jian-xin AU - Hantoro, Wahyoe S AU - Treble, Pauline C AU - Hellstrom, John C AU - LeGrande, Allegra N AU - Kelley, Maxwell AU - Schmidt, Gavin A AU - Suwargadi, Bambang W Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 133 EP - 142 PB - Elsevier, Amsterdam VL - 303 IS - 1-2 SN - 0012-821X, 0012-821X KW - calcium KW - magnesium KW - Far East KW - oxygen KW - isotopes KW - Indonesia KW - paleoclimatology KW - stable isotopes KW - Heinrich Stade 3 KW - Heinrich events KW - Cenozoic KW - stalagmites KW - intertropical convergence zone KW - atmospheric circulation KW - monsoons KW - Flores Island KW - chronology KW - carbon KW - trace elements KW - Asia KW - speleothems KW - Liang Luar Cave KW - alkaline earth metals KW - ocean circulation KW - Quaternary KW - rainfall KW - paleohydrology KW - isotope ratios KW - C-13/C-12 KW - O-18/O-16 KW - Mg/Ca KW - thermohaline circulation KW - metals KW - Pleistocene KW - reconstruction KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/877845394?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=High-resolution+stalagmite+reconstructions+of+Australian-Indonesian+monsoon+rainfall+variability+during+Heinrich+stadial+3+and+Greenland+interstadial+4&rft.au=Lewis%2C+Sophie+C%3BGagan%2C+Michael+K%3BAyliffe%2C+Linda+K%3BZhao%2C+Jian-xin%3BHantoro%2C+Wahyoe+S%3BTreble%2C+Pauline+C%3BHellstrom%2C+John+C%3BLeGrande%2C+Allegra+N%3BKelley%2C+Maxwell%3BSchmidt%2C+Gavin+A%3BSuwargadi%2C+Bambang+W&rft.aulast=Lewis&rft.aufirst=Sophie&rft.date=2011-02-01&rft.volume=303&rft.issue=1-2&rft.spage=133&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2010.12.048 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 53 N1 - Document feature - illus. incl. 1 table, sketch maps N1 - SuppNotes - Supplementary data available in online version N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Asia; atmospheric circulation; C-13/C-12; calcium; carbon; Cenozoic; chronology; Far East; Flores Island; Heinrich events; Heinrich Stade 3; Indonesia; intertropical convergence zone; isotope ratios; isotopes; Liang Luar Cave; magnesium; metals; Mg/Ca; monsoons; O-18/O-16; ocean circulation; oxygen; paleoclimatology; paleohydrology; Pleistocene; Quaternary; rainfall; reconstruction; speleothems; stable isotopes; stalagmites; thermohaline circulation; trace elements DO - http://dx.doi.org/10.1016/j.epsl.2010.12.048 ER - TY - JOUR T1 - An Estimate of Low-Cloud Feedbacks from Variations of Cloud Radiative and Physical Properties with Sea Surface Temperature on Interannual Time Scales AN - 876232699; 14955903 AB - Simulations of climate change have yet to reach a consensus on the sign and magnitude of the changes in physical properties of marine boundary layer clouds. In this study, the authors analyze how cloud and radiative properties vary with SST anomaly in low-cloud regions, based on five years (March 2000-February 2005) of Clouds and the Earth's Radiant Energy System (CERES)-Terra monthly gridded data and matched European Centre for Medium-Range Weather Forecasts (ECMWF) meteorological reanalaysis data. In particular, this study focuses on the changes in cloud radiative effect, cloud fraction, and cloud optical depth with SST anomaly. The major findings are as follows. First, the low-cloud amount (-1.9% to -3.4% K super(-1)) and the logarithm of low-cloud optical depth (-0.085 to -0.100 K super(-1)) tend to decrease while the net cloud radiative effect (3.86 W m super(-2) K super(-1)) becomes less negative as SST anomalies increase. These results are broadly consistent with previous observational studies. Second, after the changes in cloud and radiative properties with SST anomaly are separated into dynamic, thermodynamic, and residual components, changes in the dynamic component (taken as the vertical velocity at 700 hPa) have relatively little effect on cloud and radiative properties. However, the estimated inversion strength decreases with increasing SST, accounting for a large portion of the measured decreases in cloud fraction and cloud optical depth. The residual positive change in net cloud radiative effect (1.48 W m super(-2) K super(-1)) and small changes in low-cloud amount (-0.81% to 0.22% K super(-1)) and decrease in the logarithm of optical depth (-0.035 to -0.046 K super(-1)) with SST are interpreted as a positive cloud feedback, with cloud optical depth feedback being the dominant contributor. Last, the magnitudes of the residual changes differ greatly among the six low-cloud regions examined in this study, with the largest positive feedbacks (4 W m super(-2) K super(-1)) in the southeast and northeast Atlantic regions and a slightly negative feedback (-0.2 W m super(-2) K super(-1)) in the south-central Pacific region. Because the retrievals of cloud optical depth and/or cloud fraction are difficult in the presence of aerosols, the transport of heavy African continental aerosols may contribute to the large magnitudes of estimated cloud feedback in the two Atlantic regions. JF - Journal of Climate AU - Eitzen, Zachary A AU - Xu, Kuan-Man AU - Wong, Takmeng AD - Science Systems and Applications, Inc., Hampton, VA 23681, USA, zachary.a.eitzen@nasa.gov Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 1106 EP - 1121 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 USA VL - 24 IS - 4 SN - 0894-8755, 0894-8755 KW - Meteorological & Geoastrophysical Abstracts; Sustainability Science Abstracts; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Feedback KW - Sea surface temperature KW - Cloud radiative effects KW - Optical properties KW - Interannual variability KW - Climate change KW - Optical analysis KW - Sea surface temperature anomalies KW - ANE, Atlantic KW - European Centre for Medium-Range Weather Forecasts KW - Sea surface temperatures KW - Sea surface temperature forecasting KW - Weather forecasting KW - Weather KW - Aerosols KW - Thermodynamics KW - Aerosols-cloud condensation nuclei relationships KW - Aerosols-cloud relationships KW - Velocity KW - Simulation KW - Water temperature KW - A, Atlantic KW - Inversions KW - Physical properties KW - Clouds KW - Negative feedback KW - Inversion KW - INE, Pacific KW - Boundary layers KW - Cloud optical depth KW - O 2010:Physical Oceanography KW - Q2 09223:Optical properties KW - M2 551.583:Variations (551.583) KW - M3 1010:Issues in Sustainable Development KW - Q5 08502:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/876232699?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Climate&rft.atitle=An+Estimate+of+Low-Cloud+Feedbacks+from+Variations+of+Cloud+Radiative+and+Physical+Properties+with+Sea+Surface+Temperature+on+Interannual+Time+Scales&rft.au=Eitzen%2C+Zachary+A%3BXu%2C+Kuan-Man%3BWong%2C+Takmeng&rft.aulast=Eitzen&rft.aufirst=Zachary&rft.date=2011-02-01&rft.volume=24&rft.issue=4&rft.spage=1106&rft.isbn=&rft.btitle=&rft.title=Journal+of+Climate&rft.issn=08948755&rft_id=info:doi/10.1175%2F2010JCLI3670.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-07-01 N1 - Number of references - 50 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Clouds; Physical properties; Aerosols; Thermodynamics; Boundary layers; Climate change; Water temperature; Weather forecasting; Inversions; Sea surface temperature anomalies; Negative feedback; Aerosols-cloud condensation nuclei relationships; Cloud optical depth; Aerosols-cloud relationships; European Centre for Medium-Range Weather Forecasts; Sea surface temperatures; Sea surface temperature forecasting; Optical analysis; Weather; Inversion; Simulation; Velocity; ANE, Atlantic; INE, Pacific; A, Atlantic DO - http://dx.doi.org/10.1175/2010JCLI3670.1 ER - TY - JOUR T1 - A Prototype WRF-Based Ensemble Data Assimilation System for Dynamically Downscaling Satellite Precipitation Observations AN - 864962756; 14506271 AB - In the near future, the Global Precipitation Measurement (GPM) mission will provide precipitation observations with unprecedented accuracy and spatial/temporal coverage of the globe. For hydrological applications, the satellite observations need to be downscaled to the required finer-resolution precipitation fields. This paper explores a dynamic downscaling method using ensemble data assimilation techniques and cloud-resolving models. A prototype ensemble data assimilation system using the Weather Research and Forecasting Model (WRF) has been developed. A high-resolution regional WRF with multiple nesting grids is used to provide the first-guess and ensemble forecasts. An ensemble assimilation algorithm based on the maximum likelihood ensemble filter (MLEF) is used to perform the analysis. The forward observation operators from NOAA-NCEP's gridpoint statistical interpolation (GSI) are incorporated for using NOAA-NCEP operational datastream, including conventional data and clear-sky satellite observations. Precipitation observation operators are developed with a combination of the cloud-resolving physics from NASA Goddard cumulus ensemble (GCE) model and the radiance transfer schemes from NASA Satellite Data Simulation Unit (SDSU). The prototype of the system is used as a test bed to optimally combine observations and model information to produce a dynamically downscaled precipitation analysis. A case study on Tropical Storm Erin (2007) is presented to investigate the ability of the prototype of the WRF Ensemble Data Assimilation System (WRF-EDAS) to ingest information from in situ and satellite observations including precipitation-affected radiance. The results show that the analyses and forecasts produced by the WRF-EDAS system are comparable to or better than those obtained with the WRF-GSI analysis scheme using the same set of observations. An experiment was also performed to examine how the analyses and short-term forecasts of microphysical variables and dynamical fields are influenced by the assimilation of precipitation-affected radiances. The results highlight critical issues to be addressed in the next stage of development such as model-predicted hydrometeor control variables and associated background error covariance, bias estimation, and correction in radiance space, as well as the observation error statistics. While further work is needed to optimize the performance of WRF-EDAS, this study establishes the viability of developing a cloud-scale ensemble data assimilation system that has the potential to provide a useful vehicle for downscaling satellite precipitation information to finer scales suitable for hydrological applications. JF - Journal of Hydrometeorology AU - Zupanski, Dusanka AU - Zhang, Sara Q AU - Zupanski, Milija AU - Hou, Arthur Y AU - Cheung, Samson H AD - CIRA/Colorado State University, Fort Collins, Colorado, Sara Q. Zhang, NASA Goddard Space Flight Center, Code 610.1, Greenbelt, MD 20771, USA, sara.q.zhang@nasa.gov Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 118 EP - 134 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 USA VL - 12 IS - 1 SN - 1525-755X, 1525-755X KW - Water Resources Abstracts; Aqualine Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Satellite observations KW - Data assimilation KW - Ensembles KW - Precipitation KW - Cloud resolving models KW - Remote Sensing KW - Prediction KW - Statistics KW - Prototypes KW - Algorithms KW - Statistical analysis KW - Storms KW - Radiance KW - Hydrologic Models KW - Nesting KW - Reproductive behaviour KW - Hydrologic Data KW - Satellite Technology KW - Hydrologic analysis KW - Global precipitation KW - Errors KW - Tropical depressions KW - Interpolation KW - Clouds KW - Satellite sensing KW - Satellite data KW - Hydrometeors KW - AQ 00006:Sewage KW - Q2 09162:Methods and instruments KW - SW 0815:Precipitation KW - M2 551.509.1/.5:Forecasting (551.509.1/.5) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/864962756?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrometeorology&rft.atitle=A+Prototype+WRF-Based+Ensemble+Data+Assimilation+System+for+Dynamically+Downscaling+Satellite+Precipitation+Observations&rft.au=Zupanski%2C+Dusanka%3BZhang%2C+Sara+Q%3BZupanski%2C+Milija%3BHou%2C+Arthur+Y%3BCheung%2C+Samson+H&rft.aulast=Zupanski&rft.aufirst=Dusanka&rft.date=2011-02-01&rft.volume=12&rft.issue=1&rft.spage=118&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrometeorology&rft.issn=1525755X&rft_id=info:doi/10.1175%2F2010JHM1271.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-05-01 N1 - Number of references - 40 N1 - Last updated - 2016-02-04 N1 - SubjectsTermNotLitGenreText - Prediction; Satellite sensing; Radiance; Hydrometeors; Prototypes; Nesting; Reproductive behaviour; Tropical depressions; Clouds; Satellite data; Hydrologic analysis; Global precipitation; Statistical analysis; Precipitation; Storms; Data assimilation; Interpolation; Remote Sensing; Satellite Technology; Statistics; Hydrologic Models; Algorithms; Errors; Hydrologic Data DO - http://dx.doi.org/10.1175/2010JHM1271.1 ER - TY - JOUR T1 - A Study on the Feasibility of Dual-Wavelength Radar for Identification of Hydrometeor Phases AN - 864962739; 14506247 AB - An important objective for the dual-wavelength Ku-/Ka-band precipitation radar (DPR) that will be on board the Global Precipitation Measurement (GPM) core satellite is to identify the phase state of hydrometeors along the range direction. To assess this, radar signatures are simulated in snow and rain to explore the relation between the differential frequency ratio (DFR), defined as the difference of radar reflectivity factors between Ku and Ka bands, and the radar reflectivity factor at Ku band Z sub(Ku) for different hydrometeor types. Model simulations indicate that there is clear separation between snow and rain in the Z sub(Ku)-DFR plane assuming that the snow follows the Gunn-Marshall size distribution and rain follows the Marshall-Palmer size distribution. In an effort to verify the simulated results, the data collected by the Airborne Second-Generation Precipitation Radar (APR-2) in the Wakasa Bay Advanced Microwave Scanning Radiometer for Earth Observing System (AMSR-E) campaign are employed. Using the signatures of linear depolarization ratio at Ku band, the APR-2 data can be easily divided into the regions of snow, mixed phase, and rain for stratiform storms. These results are then superimposed onto the theoretical curves computed from the model in the Z sub(Ku)-DFR plane. For over 90% of the observations from a cold-season stratiform precipitation event, snow and rain can be distinguished if the Ku-band radar reflectivity exceeds 18 dBZ (the minimum detectable level of the GPM DPR at Ku band). This is also the case for snow and mixed-phase hydrometeors. Although snow can be easily distinguished from rain and melting hydrometeors by using Ku- and Ka-band radar, the rain and mixed-phase particles are not always separable. It is concluded that Ku- and Ka-band dual-wavelength radar might provide a potential means to identify the phase state of hydrometeors. JF - Journal of Applied Meteorology and Climatology AU - Liao, Liang AU - Meneghini, Robert AD - Goddard Earth Sciences and Technology Center, University of Maryland, Baltimore County, Greenbelt, MD 20771, USA, liang.liao-1@nasa.gov Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 449 EP - 456 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 USA VL - 50 IS - 2 SN - 1558-8424, 1558-8424 KW - Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Radars/radar observations KW - Precipitation KW - Cloud water/phase KW - Remote sensing KW - Snow KW - Reflectance KW - Storms KW - Melting KW - Microwaves KW - Radar reflectivity KW - Climatology KW - Satellite hydrometeor investigations KW - Airborne sensing KW - Global precipitation KW - Rainfall Distribution KW - Model Studies KW - Radar observation of hydrometeors KW - Numerical simulations KW - Hydrometeors KW - Radar KW - INW, Japan, Honshu, Wakasa Bay KW - Rain KW - Size distribution KW - SW 5010:Network design KW - Q2 09387:Navigation KW - M2 556.54:Estuaries (556.54) KW - O 2070:Meteorology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/864962739?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Meteorology+and+Climatology&rft.atitle=A+Study+on+the+Feasibility+of+Dual-Wavelength+Radar+for+Identification+of+Hydrometeor+Phases&rft.au=Liao%2C+Liang%3BMeneghini%2C+Robert&rft.aulast=Liao&rft.aufirst=Liang&rft.date=2011-02-01&rft.volume=50&rft.issue=2&rft.spage=449&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Meteorology+and+Climatology&rft.issn=15588424&rft_id=info:doi/10.1175%2F2010JAMC2499.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-05-01 N1 - Number of references - 32 N1 - Last updated - 2016-02-04 N1 - SubjectsTermNotLitGenreText - Airborne sensing; Microwaves; Reflectance; Hydrometeors; Snow; Radar; Climatology; Size distribution; Radar observation of hydrometeors; Numerical simulations; Radar reflectivity; Global precipitation; Satellite hydrometeor investigations; Precipitation; Storms; Melting; Rainfall Distribution; Rain; Model Studies; INW, Japan, Honshu, Wakasa Bay DO - http://dx.doi.org/10.1175/2010JAMC2499.1 ER - TY - JOUR T1 - Measuring the sizes, shapes, surface features and rotations of solar system objects with interferometry AN - 864947531; 2011-038778 JF - Icarus AU - Li, Jian-Yang AU - Kuchner, Marc J AU - Allen, Ronald J AU - Sheppard, Scott S Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 1007 EP - 1021 PB - Elsevier, New York, NY VL - 211 IS - 2 SN - 0019-1035, 0019-1035 KW - methods KW - asteroids KW - Kuiper Belt KW - Centaurs KW - main belt asteroids KW - dwarf planets KW - polar caps KW - telescopic observations KW - brightness KW - photometry KW - rotation KW - surface features KW - Haumea KW - solar system KW - orientation KW - three-dimensional models KW - shape analysis KW - interferometry KW - size KW - measurement KW - light curves KW - models KW - physical properties KW - Hubble Space Telescope KW - accuracy KW - space-based methods KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/864947531?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Measuring+the+sizes%2C+shapes%2C+surface+features+and+rotations+of+solar+system+objects+with+interferometry&rft.au=Li%2C+Jian-Yang%3BKuchner%2C+Marc+J%3BAllen%2C+Ronald+J%3BSheppard%2C+Scott+S&rft.aulast=Li&rft.aufirst=Jian-Yang&rft.date=2011-02-01&rft.volume=211&rft.issue=2&rft.spage=1007&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2010.11.017 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 99 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - accuracy; asteroids; brightness; Centaurs; dwarf planets; Haumea; Hubble Space Telescope; interferometry; Kuiper Belt; light curves; main belt asteroids; measurement; methods; models; orientation; photometry; physical properties; polar caps; remote sensing; rotation; shape analysis; size; solar system; space-based methods; surface features; telescopic observations; three-dimensional models DO - http://dx.doi.org/10.1016/j.icarus.2010.11.017 ER - TY - JOUR T1 - A wavelet-based approach to assessing timing errors in hydrologic predictions AN - 864947216; 2011-038437 AB - Streamflow predictions typically contain errors in both the timing and the magnitude of peak flows. These two types of error often originate from different sources (e.g. rainfall-runoff modeling vs. routing) and hence may have different implications and ramifications for both model diagnosis and decision support. Thus, where possible and relevant, they should be distinguished and separated in model evaluation and forecast verification applications. Distinct information on timing errors in hydrologic prediction could lead to more targeted model improvements in a diagnostic evaluation context, as well as better-informed decisions in many practical applications, such as flood prediction, water supply forecasting, river regulation, navigation, and engineering design. However, information on timing errors in hydrologic predictions is rarely evaluated or provided. In this paper, we discuss the importance of assessing and quantifying timing error in hydrologic predictions and present a new approach, which is based on the cross wavelet transform (XWT) technique. The XWT technique transforms the time series of predictions and corresponding observations into a two-dimensional time-scale space and provides information on scale- and time-dependent timing differences between the two time series. The results for synthetic timing errors (both constant and time-varying) indicate that the XWT-based approach can estimate timing errors in streamflow predictions with reasonable reliability. The approach is then employed to analyze the timing errors in real streamflow simulations for a number of headwater basins in the US state of Texas. The resulting timing error estimates were consistent with the physiographic and climatic characteristics of these basins. A simple post-factum timing adjustment based on these estimates led to considerably improved agreement between streamflow observations and simulations, further illustrating the potential for using the XWT-based approach for timing error estimation. JF - Journal of Hydrology AU - Liu, Yuqiong AU - Brown, James AU - Demargne, Julie AU - Seo, Dong-Jun Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 210 EP - 224 PB - Elsevier, Amsterdam VL - 397 IS - 3-4 SN - 0022-1694, 0022-1694 KW - United States KW - hydrology KW - water supply KW - experimental studies KW - rainfall KW - prediction KW - Texas KW - transportation KW - West Gulf River KW - rivers KW - simulation KW - models KW - errors KW - wavelets KW - navigation KW - runoff KW - mathematical methods KW - fluvial features KW - floods KW - Harrison County Texas KW - water resources KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/864947216?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology&rft.atitle=A+wavelet-based+approach+to+assessing+timing+errors+in+hydrologic+predictions&rft.au=Liu%2C+Yuqiong%3BBrown%2C+James%3BDemargne%2C+Julie%3BSeo%2C+Dong-Jun&rft.aulast=Liu&rft.aufirst=Yuqiong&rft.date=2011-02-01&rft.volume=397&rft.issue=3-4&rft.spage=210&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology&rft.issn=00221694&rft_id=info:doi/10.1016%2Fj.jhydrol.2010.11.040 L2 - http://www.sciencedirect.com/science/journal/00221694 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 68 N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - JHYDA7 N1 - SubjectsTermNotLitGenreText - errors; experimental studies; floods; fluvial features; Harrison County Texas; hydrology; mathematical methods; models; navigation; prediction; rainfall; rivers; runoff; simulation; Texas; transportation; United States; water resources; water supply; wavelets; West Gulf River DO - http://dx.doi.org/10.1016/j.jhydrol.2010.11.040 ER - TY - JOUR T1 - Development of implicit methods in CFD NASA Ames Research Center 1970s-1980s AN - 864420757; 14442879 AB - The focus here is on the early development (mid 1970s-1980s) at NASA Ames Research Center of implicit methods in Computational Fluid Dynamics (CFD). A class of implicit finite difference schemes of the Beam and Warming approximate factorization type will be addressed. The emphasis will be on the Euler equations. A review of material pertinent to the solution of the Euler equations within the framework of implicit methods will be presented. The eigensystem of the equations will be used extensively in developing a framework for various methods applied to the Euler equations. The development and analysis of various aspects of this class of schemes will be given along with the motivations behind many of the choices. Various acceleration and efficiency modifications such as matrix reduction, diagonalization and flux split schemes will be presented. JF - Computers & Fluids AU - Pulliam, TH AD - MS 258-2, NASA Ames Research Center Moffett Field, CA 94035, USA, Thomas.H.Pulliam@nasa.gov Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 65 EP - 71 PB - Elsevier Science, P.O. Box 800 Kidlington Oxford OX5 1DX UK VL - 41 IS - 1 SN - 0045-7930, 0045-7930 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Implicit finite differences KW - CFD KW - Approximate factorization KW - Numerical methods KW - Finite Difference Methods KW - Mathematical models KW - Motivation KW - Hydrodynamics KW - Reviews KW - Computers KW - Fluid dynamics KW - Fluctuations KW - Acceleration KW - SW 0810:General KW - Q2 09182:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/864420757?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Computers+%26+Fluids&rft.atitle=Development+of+implicit+methods+in+CFD+NASA+Ames+Research+Center+1970s-1980s&rft.au=Pulliam%2C+TH&rft.aulast=Pulliam&rft.aufirst=TH&rft.date=2011-02-01&rft.volume=41&rft.issue=1&rft.spage=65&rft.isbn=&rft.btitle=&rft.title=Computers+%26+Fluids&rft.issn=00457930&rft_id=info:doi/10.1016%2Fj.compfluid.2010.09.016 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-09-01 N1 - Last updated - 2016-02-04 N1 - SubjectsTermNotLitGenreText - Mathematical models; Fluid dynamics; Acceleration; Finite Difference Methods; Hydrodynamics; Motivation; Computers; Reviews; Fluctuations DO - http://dx.doi.org/10.1016/j.compfluid.2010.09.016 ER - TY - JOUR T1 - A critical study of agglomerated multigrid methods for diffusion on highly-stretched grids AN - 864417456; 14442881 AB - Agglomerated multigrid methods for unstructured grids are studied critically for solving a model diffusion equation on highly-stretched grids typical of practical viscous simulations, following a previous work focused on isotropic grids. Different primal elements, including prismatic and tetrahedral elements in three dimensions, are considered. The components of an efficient node-centered full-coarsening multigrid scheme are identified and assessed using quantitative analysis methods. Fast grid-independent convergence is demonstrated for mixed-element grids composed of tetrahedral elements in the isotropic regions and prismatic elements in the highly-stretched regions. Implicit lines natural to advancing-layer/advancing-front grid generation techniques are essential elements of both relaxation and agglomeration. On agglomerated grids, consistent average-least-square discretizations augmented with edge-directional gradients to increase h-ellipticity of the operator are used. Simpler (edge-terms-only) coarse-grid discretizations are also studied and shown to produce grid-dependent convergence - only effective on grids with minimal skewing. JF - Computers & Fluids AU - Thomas, James L AU - Diskin, Boris AU - Nishikawa, Hiroaki AD - NASA Langley Research Center, Computational AeroSciences Branch, Mail Stop 128, Hampton, VA 23681, United States Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 82 EP - 93 PB - Elsevier Science, P.O. Box 800 Kidlington Oxford OX5 1DX UK VL - 41 IS - 1 SN - 0045-7930, 0045-7930 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Multigrid KW - Agglomeration KW - Unstructured KW - Diffusion KW - Analysis KW - Mathematical models KW - Computers KW - Quantitative Analysis KW - Model Studies KW - Methodology KW - SW 0810:General KW - Q2 09182:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/864417456?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Computers+%26+Fluids&rft.atitle=A+critical+study+of+agglomerated+multigrid+methods+for+diffusion+on+highly-stretched+grids&rft.au=Thomas%2C+James+L%3BDiskin%2C+Boris%3BNishikawa%2C+Hiroaki&rft.aulast=Thomas&rft.aufirst=James&rft.date=2011-02-01&rft.volume=41&rft.issue=1&rft.spage=82&rft.isbn=&rft.btitle=&rft.title=Computers+%26+Fluids&rft.issn=00457930&rft_id=info:doi/10.1016%2Fj.compfluid.2010.09.023 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-09-01 N1 - Last updated - 2016-02-04 N1 - SubjectsTermNotLitGenreText - Mathematical models; Methodology; Computers; Quantitative Analysis; Model Studies DO - http://dx.doi.org/10.1016/j.compfluid.2010.09.023 ER - TY - JOUR T1 - Implicit methods for viscous incompressible flows AN - 864417401; 14442878 AB - Numerical methods and simulation tools for incompressible flows have been advanced largely as a subset of the computational fluid dynamics (CFD) discipline. Especially within the aerospace community, simulation of compressible flows has driven most of the development of computational algorithms and tools. This is due to the high level of accuracy desired for predicting aerodynamic performance of flight vehicles. Conversely, low-speed incompressible flow encountered in a wide range of fluid engineering problems has not typically required the same level of numerical accuracy. This practice of tolerating relatively low-fidelity solutions in engineering applications for incompressible flow has changed. As the design of flow devices becomes more sophisticated, a narrower margin of error is required. Accurate and robust CFD tools have become increasingly important in fluid engineering for incompressible and low-speed flow. Accuracy depends not only on numerical methods but also on flow physics and geometry modeling. For high-accuracy solutions, geometry modeling has to be very inclusive to capture the elliptic nature of incompressible flow resulting in large grid sizes. Therefore, in this article, implicit schemes or efficient time integration schemes for incompressible flow are reviewed from a CFD tool development point of view. Extension of the efficient solution procedures to arbitrary Mach number flows through a unified time-derivative preconditioning approach is also discussed. The unified implicit solution procedure is capable of solving low-speed compressible flows, transonic, as well as supersonic flows accurately and efficiently. Test cases demonstrating Mach-independent convergence are presented. JF - Computers & Fluids AU - Kwak, Dochan AU - Kiris, Cetin AU - Housman, Jeffrey AD - NASA Advanced Supercomputing (NAS) Division, NASA Ames Research Center, Mail Stop 258-5, Moffett Field, CA 94035, USA, Dochan.Kwak@nasa.gov Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 51 EP - 64 PB - Elsevier Science, P.O. Box 800 Kidlington Oxford OX5 1DX UK VL - 41 IS - 1 SN - 0045-7930, 0045-7930 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Computational fluid dynamics KW - Incompressible flow KW - Numerical simulation KW - Implicit methods KW - Testing Procedures KW - Hydrodynamics KW - Computers KW - Algorithms KW - Simulation KW - Errors KW - Compressible Flow KW - Model Studies KW - Methodology KW - Engineering KW - Aerodynamics KW - Fluid dynamics KW - SW 0810:General KW - Q2 09182:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/864417401?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Computers+%26+Fluids&rft.atitle=Implicit+methods+for+viscous+incompressible+flows&rft.au=Kwak%2C+Dochan%3BKiris%2C+Cetin%3BHousman%2C+Jeffrey&rft.aulast=Kwak&rft.aufirst=Dochan&rft.date=2011-02-01&rft.volume=41&rft.issue=1&rft.spage=51&rft.isbn=&rft.btitle=&rft.title=Computers+%26+Fluids&rft.issn=00457930&rft_id=info:doi/10.1016%2Fj.compfluid.2010.09.022 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-09-01 N1 - Last updated - 2016-09-29 N1 - SubjectsTermNotLitGenreText - Aerodynamics; Fluid dynamics; Simulation; Methodology; Testing Procedures; Engineering; Hydrodynamics; Computers; Algorithms; Errors; Compressible Flow; Model Studies DO - http://dx.doi.org/10.1016/j.compfluid.2010.09.022 ER - TY - JOUR T1 - The radiation quality factor as an Ornstein-Uhlenbeck process AN - 864408164; 14355758 AB - Radiation protection strategies for extended or deep space missions rely on accurate and robust estimates of exposure dose and corresponding risk to crew health, systems functions, and mission safety in general. Simulation and modeling of dose and risk associated with such exposures are, to various degrees, made difficult by the inherent complexity and variability in characterizing the radiation environment, its passage and interaction with matter, and its biological effects. One of the more important contributors to the overall uncertainty in dose or risk assessment is the empirical variability in the radiation quality factor, Q, which is typically used to differentiate such effects. Motivated in part by recent Monte-Carlo based simulations of this variability, we propose and demonstrate a stochastic dynamic model for Q based on the Ornstein-Uhlenbeck process. The proposed model's probability density function is a Gaussian in Q and with a linearly (in the logarithm of the LET variable) growing variance, but with rather complex scaling properties. The model's density function is shown to be quite sensitive to any functional parameterization of the mean (deterministic) behavior of the quality factor with a discontinuous first derivative in LET. The proposed linear stochastic model is also shown to be insensitive, however, to the precise functional form of the deterministic Q. JF - Radiation Measurements AU - Barghouty, A F AD - Space Science Oce, NASA Marshall Space Flight Center, Huntsville, AL 35812, USA, abdulnasser.f.barghouty@nasa.gov Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 224 EP - 231 PB - Elsevier Science, P.O. Box 800 Kidlington Oxford OX5 1DX UK VL - 46 IS - 2 SN - 1350-4487, 1350-4487 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Risk Abstracts KW - Space radiation KW - Radiation quality factor KW - Monte-Carlo simulations KW - Stochastic processes KW - Ornstein-Uhlenbeck process KW - Risk assessment KW - Variability KW - biological effects KW - Environmental factors KW - stochastic models KW - Assessments KW - Radiation KW - Exposure KW - Mathematical models KW - Density KW - Simulation KW - Model Studies KW - scaling KW - Risk KW - Behavior KW - Radiation measurements KW - Radiation protection KW - Scaling KW - AQ 00001:Water Resources and Supplies KW - Q5 08503:Characteristics, behavior and fate KW - R2 23020:Technological risks KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/864408164?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+Measurements&rft.atitle=The+radiation+quality+factor+as+an+Ornstein-Uhlenbeck+process&rft.au=Barghouty%2C+A+F&rft.aulast=Barghouty&rft.aufirst=A&rft.date=2011-02-01&rft.volume=46&rft.issue=2&rft.spage=224&rft.isbn=&rft.btitle=&rft.title=Radiation+Measurements&rft.issn=13504487&rft_id=info:doi/10.1016%2Fj.radmeas.2010.11.018 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-04-01 N1 - Last updated - 2016-02-04 N1 - SubjectsTermNotLitGenreText - Mathematical models; Radiation; Radiation protection; Environmental factors; Risk assessment; biological effects; Radiation measurements; Simulation; stochastic models; scaling; Risk; Variability; Behavior; Assessments; Exposure; Density; Scaling; Model Studies DO - http://dx.doi.org/10.1016/j.radmeas.2010.11.018 ER - TY - JOUR T1 - KOI-126; a triply eclipsing hierarchical triple with two low-mass stars AN - 861984766; 2011-034938 AB - The Kepler spacecraft has been monitoring the light from 150,000 stars in its primary quest to detect transiting exoplanets. Here, we report on the detection of an eclipsing stellar hierarchical triple, identified in the Kepler photometry. KOI-126 [A, (B, C)], is composed of a low-mass binary [masses M (sub B) = 0.2413 + or - 0.0030 solar mass (M (sub .) ), M (sub C) = 0.2127 + or - 0.0026 M (sub .) ; radii R (sub B) = 0.2543 + or - 0.0014 solar radius (R (sub .) ), R (sub C) = 0.2318 + or - 0.0013 R (sub .) ; orbital period P (sub 1) = 1.76713 + or - 0.00019 days] on an eccentric orbit about a third star (mass M (sub A) = 1.347 + or - 0.032 M (sub .) ; radius R (sub A) = 2.0254 + or - 0.0098 R (sub .) ; period of orbit around the low-mass binary P (sub 2) = 33.9214 + or - 0.0013 days; eccentricity of that orbit e (sub 2) = 0.3043 + or - 0.0024). The low-mass pair probe the poorly sampled fully convective stellar domain offering a crucial benchmark for theoretical stellar models. JF - Science AU - Carter, Joshua A AU - Fabrycky, Daniel C AU - Ragozzine, Darin AU - Holman, Matthew J AU - Quinn, Samuel N AU - Latham, David W AU - Buchhave, Lars A AU - Van Cleve, Jeffrey AU - Cochran, William D AU - Cote, Miles T AU - Endl, Michael AU - Ford, Eric B AU - Haas, Michael R AU - Jenkins, Jon M AU - Koch, David G AU - Li, Jie AU - Lissauer, Jack J AU - MacQueen, Phillip J AU - Middour, Christopher K AU - Orosz, Jerome A AU - Rowe, Jason F AU - Steffen, Jason H AU - Welsh, William F Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 562 EP - 565 PB - American Association for the Advancement of Science, Washington, DC VL - 331 IS - 6017 SN - 0036-8075, 0036-8075 KW - models KW - planets KW - photometry KW - detection KW - extrasolar planets KW - stars KW - orbits KW - KOI-126 System KW - Kepler Mission KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/861984766?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=KOI-126%3B+a+triply+eclipsing+hierarchical+triple+with+two+low-mass+stars&rft.au=Carter%2C+Joshua+A%3BFabrycky%2C+Daniel+C%3BRagozzine%2C+Darin%3BHolman%2C+Matthew+J%3BQuinn%2C+Samuel+N%3BLatham%2C+David+W%3BBuchhave%2C+Lars+A%3BVan+Cleve%2C+Jeffrey%3BCochran%2C+William+D%3BCote%2C+Miles+T%3BEndl%2C+Michael%3BFord%2C+Eric+B%3BHaas%2C+Michael+R%3BJenkins%2C+Jon+M%3BKoch%2C+David+G%3BLi%2C+Jie%3BLissauer%2C+Jack+J%3BMacQueen%2C+Phillip+J%3BMiddour%2C+Christopher+K%3BOrosz%2C+Jerome+A%3BRowe%2C+Jason+F%3BSteffen%2C+Jason+H%3BWelsh%2C+William+F&rft.aulast=Carter&rft.aufirst=Joshua&rft.date=2011-02-01&rft.volume=331&rft.issue=6017&rft.spage=562&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.1201274 L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 29 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - detection; extrasolar planets; Kepler Mission; KOI-126 System; models; orbits; photometry; planets; remote sensing; stars DO - http://dx.doi.org/10.1126/science.1201274 ER - TY - JOUR T1 - Presolar history recorded in extraterrestrial materials AN - 857810121; 2011-028230 AB - Extraterrestrial samples include a rich variety of materials with different histories. Among the array of Solar System materials are tiny grains with extremely anomalous isotopic compositions--records of nucleosynthetic processes that occurred deep within their now extinct parent stars. The isotopic and mineralogical characterization of these presolar grains in the laboratory provides unprecedented insight into stellar and galactic evolution, nucleosynthesis, and dust formation and processing. The discovery of presolar grains has opened up a pivotal new dimension in the field of astrophysics. Coupled with astronomical observations and astrophysical studies, stardust analyses bring nanometer-scale detail to the history of our immense Galaxy. JF - Elements AU - Nguyen, Ann N AU - Messenger, Scott Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 17 EP - 22 PB - Mineralogical Society of America and Mineralogical Society of Great Britain and Ireland and Mineralogical Association of Canada and Geochemical Society and Clay Minerals Society VL - 7 IS - 1 SN - 1811-5209, 1811-5209 KW - methods KW - oxygen KW - ion probe data KW - isotopes KW - mass spectra KW - carbides KW - stable isotopes KW - laboratory studies KW - silicon carbide KW - presolar grains KW - mixing KW - alloys KW - spectra KW - interstellar dust KW - geochemistry KW - O-17/O-16 KW - solar system KW - chemical analysis KW - condensation KW - isotope ratios KW - supernovas KW - parent bodies KW - cosmochemistry KW - O-18/O-16 KW - nucleosynthesis KW - TEM data KW - cosmic dust KW - grains KW - stars KW - NanoSIMS KW - SEM data KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/857810121?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Elements&rft.atitle=Presolar+history+recorded+in+extraterrestrial+materials&rft.au=Nguyen%2C+Ann+N%3BMessenger%2C+Scott&rft.aulast=Nguyen&rft.aufirst=Ann&rft.date=2011-02-01&rft.volume=7&rft.issue=1&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Elements&rft.issn=18115209&rft_id=info:doi/10.2113%2Fgselements.7.1.17 L2 - http://www.elementsmagazine.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 32 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alloys; carbides; chemical analysis; condensation; cosmic dust; cosmochemistry; geochemistry; grains; interstellar dust; ion probe data; isotope ratios; isotopes; laboratory studies; mass spectra; methods; mixing; NanoSIMS; nucleosynthesis; O-17/O-16; O-18/O-16; oxygen; parent bodies; presolar grains; SEM data; silicon carbide; solar system; spectra; stable isotopes; stars; supernovas; TEM data DO - http://dx.doi.org/10.2113/gselements.7.1.17 ER - TY - JOUR T1 - A closely packed system of low-mass low-density planets transiting Kepler-II AN - 857809227; 2011-029963 JF - Nature (London) AU - Lissauer, Jack J AU - Fabrycky, Daniel C AU - Ford, Eric B AU - Borucki, William J AU - Fressin, Francois AU - Marcy, Geoffrey W AU - Orosz, Jerome A AU - Rowe, Jason F AU - Torres, Guillermo AU - Welsh, William F AU - Batalha, Natalie M AU - Bryson, Stephen T AU - Buchhave, Lars A AU - Caldwell, Douglas A AU - Carter, Joshua A AU - Charbonneau, David AU - Christiansen, Jessie L AU - Cochran, William D AU - Desert, Jean-Michel AU - Dunham, Edward W AU - Fanelli, Michael N AU - Fortney, Jonathan J AU - Gautier, Thomas N, III AU - Geary, John C AU - Gilliland, Ronald L AU - Haas, Michael R AU - Hall, Jennifer R AU - Holman, Matthew J AU - Koch, David G AU - Latham, David W AU - Lopez, Eric AU - McCauliff, Sean AU - Miller, Neil AU - Morehead, Robert C AU - Quintana, Elisa V AU - Ragozzine, Darin AU - Sasselov, Dimitar AU - Short, Donald R AU - Steffen, Jason H Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 53 EP - 58 PB - Macmillan Journals, London VL - 470 IS - 7332 SN - 0028-0836, 0028-0836 KW - extrasolar planets KW - density KW - telescope methods KW - Kepler-11 Star KW - orbits KW - stability KW - variations KW - models KW - mass KW - planets KW - detection KW - dynamics KW - spectra KW - Kepler Mission KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/857809227?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+%28London%29&rft.atitle=A+closely+packed+system+of+low-mass+low-density+planets+transiting+Kepler-II&rft.au=Lissauer%2C+Jack+J%3BFabrycky%2C+Daniel+C%3BFord%2C+Eric+B%3BBorucki%2C+William+J%3BFressin%2C+Francois%3BMarcy%2C+Geoffrey+W%3BOrosz%2C+Jerome+A%3BRowe%2C+Jason+F%3BTorres%2C+Guillermo%3BWelsh%2C+William+F%3BBatalha%2C+Natalie+M%3BBryson%2C+Stephen+T%3BBuchhave%2C+Lars+A%3BCaldwell%2C+Douglas+A%3BCarter%2C+Joshua+A%3BCharbonneau%2C+David%3BChristiansen%2C+Jessie+L%3BCochran%2C+William+D%3BDesert%2C+Jean-Michel%3BDunham%2C+Edward+W%3BFanelli%2C+Michael+N%3BFortney%2C+Jonathan+J%3BGautier%2C+Thomas+N%2C+III%3BGeary%2C+John+C%3BGilliland%2C+Ronald+L%3BHaas%2C+Michael+R%3BHall%2C+Jennifer+R%3BHolman%2C+Matthew+J%3BKoch%2C+David+G%3BLatham%2C+David+W%3BLopez%2C+Eric%3BMcCauliff%2C+Sean%3BMiller%2C+Neil%3BMorehead%2C+Robert+C%3BQuintana%2C+Elisa+V%3BRagozzine%2C+Darin%3BSasselov%2C+Dimitar%3BShort%2C+Donald+R%3BSteffen%2C+Jason+H&rft.aulast=Lissauer&rft.aufirst=Jack&rft.date=2011-02-01&rft.volume=470&rft.issue=7332&rft.spage=53&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2Fnature09760 L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 35 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - density; detection; dynamics; extrasolar planets; Kepler Mission; Kepler-11 Star; mass; models; orbits; planets; remote sensing; spectra; stability; telescope methods; variations DO - http://dx.doi.org/10.1038/nature09760 ER - TY - JOUR T1 - Overshooting cloud top detections using MSG SEVIRI Infrared brightness temperatures and their relationship to severe weather over Europe AN - 856787385; 14207632 AB - This purposes of this paper are to: 1) demonstrate an objective overshooting top (OT) detection method using Meteosat Second Generation (MSG) Spinning Enhanced Visible and Infrared Imager (SEVIRI) infrared data, 2) produce an OT database for all operational SEVIRI data over Europe and north Africa for the six Northern Hemisphere warm seasons observed by SEVIRI to date, and 3) determine the frequency of OT detections in the vicinity of confirmed severe weather reports recorded within the European Severe Weather Database (ESWD). Algorithm performance is demonstrated for a case where numerous severe storms were present. Qualitative comparisons indicate that most OT detections correspond with the characteristic OT signature in SEVIRI 1km resolution visible channel imagery, but some OTs were left undetected due in part to relatively coarse SEVIRI spatial resolution over the European domain. The SEVIRI OT database shows a strong relationship between OT maxima and regions with high terrain. OTs are found to occur more frequently during the day over land and during the night over water. Inter- and intra-seasonal variability in OT frequency and location are also shown. An OT was found near 47% of the confirmed ESWD events. The OT-severe weather relationship is strong for large hail (53%) and severe wind (52%) events but relatively weak for tornado events (14%). The weak OT-tornado relationship may be related two factors: 1) low-level wind shear is found to be of greater importance than large CAPE and strong updrafts (i.e. OTs) in tornadic storm environments across Europe and 2) a weakening of the storm updraft and collapse of the OT region has been documented prior to tornado formation. The relatively strong overall OT-severe weather relationship suggests that OT detections can be used to increase forecaster confidence that a given storm is severe, especially in regions where frequent, ground based Doppler weather radar data is unavailable. JF - Atmospheric Research AU - Bedka, Kristopher M AD - Science Systems and Applications, Inc., 1 Enterprise Parkway, Suite 201, Hampton, VA 23666, USA, Kristopher.m.bedka@nasa.gov Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 175 EP - 189 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 99 IS - 2 SN - 0169-8095, 0169-8095 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Environment Abstracts; Meteorological & Geoastrophysical Abstracts KW - Deep convection KW - Satellite KW - Meteosat-8/9 KW - SEVIRI KW - Overshooting convective cloud tops KW - Severe weather KW - European Severe Weather Database KW - Variability KW - Algorithms KW - Europe KW - Storms KW - Updrafts KW - Surface radiation temperature KW - Severe storms KW - Weather radar KW - ANE, Europe KW - Weather forecasting KW - Wind KW - Weather KW - Wind shear KW - Mathematical models KW - Hail KW - Temperature KW - Collapse KW - Channels KW - Clouds KW - Databases KW - Performance Evaluation KW - Severe weather events KW - Radar KW - Africa KW - Brightness temperature KW - Large hail KW - M2 551.502:Meteorological Networks (551.502) KW - Q2 09242:Observations and measurements at sea KW - SW 5010:Network design KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/856787385?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Research&rft.atitle=Overshooting+cloud+top+detections+using+MSG+SEVIRI+Infrared+brightness+temperatures+and+their+relationship+to+severe+weather+over+Europe&rft.au=Bedka%2C+Kristopher+M&rft.aulast=Bedka&rft.aufirst=Kristopher&rft.date=2011-02-01&rft.volume=99&rft.issue=2&rft.spage=175&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Research&rft.issn=01698095&rft_id=info:doi/10.1016%2Fj.atmosres.2010.10.001 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-03-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Clouds; Wind shear; Hail; Mathematical models; Radar; Weather forecasting; Surface radiation temperature; Severe storms; Weather radar; Severe weather events; Algorithms; Brightness temperature; Updrafts; Storms; Large hail; Channels; Weather; Temperature; Databases; Performance Evaluation; Variability; Collapse; Wind; ANE, Europe; Africa; Europe DO - http://dx.doi.org/10.1016/j.atmosres.2010.10.001 ER - TY - JOUR T1 - The origin of dust in the early universe; probing the star formation history of galaxies by their dust content AN - 1416689273; 2013-060064 AB - Two distinct scenarios for the origin of the approximately 4X10 (super 8) M (sub []) of dust observed in the high-redshift (z=6.4) quasar J1148+5251 have been proposed. The first assumes that this galaxy is much younger than the age of the universe at that epoch so that only supernovae (SNe) could have produced this dust. The second scenario assumes a significantly older galactic age, so that the dust could have formed in lower-mass asymptotic giant branch (AGB) stars. Presenting new integral solutions for the chemical evolution of metals and dust in galaxies, we offer a critical evaluation of these two scenarios and observational consequences that can discriminate between the two. We show that AGB stars can produce the inferred mass of dust in this object, however, the final mass of surviving dust depends on the galaxy's star formation history (SFH). In general, SNe cannot produce the observed amount of dust unless the average SN event creates over approximately 2M (sub []) of dust in its ejecta. However, special SFHs can be constructed in which SNe can produce the inferred dust mass with a reasonable average dust yield of approximately 0.15 M (sub []) . The two scenarios propose different origins for the galaxy's spectral energy distribution, different star formation efficiencies and stellar masses, and consequently different comoving number densities of J1148+5251-type hyperluminous infrared (IR) objects. The detection of diagnostic mid-IR fine structure lines and more complete surveys determining the comoving number density of these objects can discriminate between the two scenarios. Copyright Copyright is not claimed for this article. All rights reserved. JF - The = Astrophysical Journal AU - Dwek, Eli AU - Cherchneff, Isabelle Y1 - 2011/02/01/ PY - 2011 DA - 2011 Feb 01 EP - paper 63 PB - University of Chicago Press for the American Astronomical Society, Chicago, IL VL - 727 IS - 2 SN - 0004-637X, 0004-637X KW - quasars KW - galaxies KW - AGB stars KW - supernovas KW - Wolf-Rayet stars KW - cosmochemistry KW - infrared spectra KW - asymptotic giant branch stars KW - cosmic dust KW - molecular clouds KW - stars KW - surveys KW - spectra KW - interstellar dust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1416689273?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+%3D+Astrophysical+Journal&rft.atitle=The+origin+of+dust+in+the+early+universe%3B+probing+the+star+formation+history+of+galaxies+by+their+dust+content&rft.au=Dwek%2C+Eli%3BCherchneff%2C+Isabelle&rft.aulast=Dwek&rft.aufirst=Eli&rft.date=2011-02-01&rft.volume=727&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+%3D+Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F727%2F2%2F63 L2 - http://iopscience.iop.org/0004-637X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 69 N1 - PubXState - IL N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2013-08-02 N1 - SubjectsTermNotLitGenreText - AGB stars; asymptotic giant branch stars; cosmic dust; cosmochemistry; galaxies; infrared spectra; interstellar dust; molecular clouds; quasars; spectra; stars; supernovas; surveys; Wolf-Rayet stars DO - http://dx.doi.org/10.1088/0004-637X/727/2/63 ER - TY - JOUR T1 - On the volatile enrichments and heavy element content in HD189733b AN - 1416688385; 2013-060068 AB - Favored theories of giant planet formation center around two main paradigms, namely the core accretion model and the gravitational instability model. These two formation scenarios support the hypothesis that the giant planet metallicities should be higher or equal to that of the parent star. Meanwhile, spectra of the transiting hot Jupiter HD189733b suggest that carbon and oxygen abundances range from depleted to enriched with respect to the star. Here, using a model describing the formation sequence and composition of planetesimals in the protoplanetary disk, we determine the range of volatile abundances in the envelope of HD189733b that is consistent with the 20-80 M (sub +) of heavy elements estimated to be present in the planet's envelope. We then compare the inferred carbon and oxygen abundances to those retrieved from spectroscopy, and we find a range of supersolar values that directly fit both spectra and internal structure models. In some cases, we find that the apparent contradiction between the subsolar elemental abundances and the mass of heavy elements predicted in HD189733b by internal structure models can be explained by the presence of large amounts of carbon molecules in the form of polycyclic aromatic hydrocarbons and soots in the upper layers of the envelope, as suggested by recent photochemical models. A diagnostic test that would confirm the presence of these compounds in the envelope is the detection of acetylene. Several alternative hypotheses that could also explain the subsolar metallicity of HD189733b are formulated: the possibility of differential settling in its envelope, the presence of a larger core that did not erode with time, a mass of heavy elements lower than the one predicted by interior models, a heavy element budget resulting from the accretion of volatile-poor planetesimals in specific circumstances, or the combination of all these mechanisms. Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The = Astrophysical Journal AU - Mousis, Olivier AU - Lunine, J I AU - Petit, J M AU - Zahnle, K AU - Biennier, L AU - Picaud, S AU - Johnson, T V AU - Mitchell, J B A AU - Boudon, V AU - Cordier, D AU - Devel, M AU - Georges, R AU - Griffith, C AU - Iro, N AU - Marley, M S AU - Marboeuf, U Y1 - 2011/02/01/ PY - 2011 DA - 2011 Feb 01 EP - paper 77 PB - University of Chicago Press for the American Astronomical Society, Chicago, IL VL - 727 IS - 2 SN - 0004-637X, 0004-637X KW - accretion KW - oxygen KW - extrasolar planets KW - enrichment KW - photochemistry KW - Jupiter KW - planetesimals KW - protoplanetary disk KW - giant planets KW - models KW - planets KW - organic compounds KW - heavy elements KW - volatile elements KW - stars KW - HD189733b KW - carbon KW - planetary interiors KW - hydrocarbons KW - composition KW - polycyclic aromatic hydrocarbons KW - outer planets KW - aromatic hydrocarbons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1416688385?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+%3D+Astrophysical+Journal&rft.atitle=On+the+volatile+enrichments+and+heavy+element+content+in+HD189733b&rft.au=Mousis%2C+Olivier%3BLunine%2C+J+I%3BPetit%2C+J+M%3BZahnle%2C+K%3BBiennier%2C+L%3BPicaud%2C+S%3BJohnson%2C+T+V%3BMitchell%2C+J+B+A%3BBoudon%2C+V%3BCordier%2C+D%3BDevel%2C+M%3BGeorges%2C+R%3BGriffith%2C+C%3BIro%2C+N%3BMarley%2C+M+S%3BMarboeuf%2C+U&rft.aulast=Mousis&rft.aufirst=Olivier&rft.date=2011-02-01&rft.volume=727&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+%3D+Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F727%2F2%2F77 L2 - http://iopscience.iop.org/0004-637X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 50 N1 - PubXState - IL N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2013-08-02 N1 - SubjectsTermNotLitGenreText - accretion; aromatic hydrocarbons; carbon; composition; enrichment; extrasolar planets; giant planets; HD189733b; heavy elements; hydrocarbons; Jupiter; models; organic compounds; outer planets; oxygen; photochemistry; planetary interiors; planetesimals; planets; polycyclic aromatic hydrocarbons; protoplanetary disk; stars; volatile elements DO - http://dx.doi.org/10.1088/0004-637X/727/2/77 ER - TY - JOUR T1 - (super 53) Mn- (super 53) Cr ages of Kaidun carbonates AN - 1287378665; 2013-019680 AB - We report the (super 53) Mn- (super 53) Cr systematics of three dolomite grains from two different CI1 clasts contained within the Kaidun meteorite breccia. Three internal isochrones result in initial (super 53) Mn/ (super 55) Mn ratios of (4.2 + or - 0.4) X 10 (super -6) , (4.6 + or - 1.3) X 10 (super -6) , and (5.2 + or - 1.1) X 10 (super -6) . These initial values are consistent with those measured for dolomite in the Orgueil CI1 chondrite (Hoppe et al. 2007; Petitat et al. 2009) but significantly lower than the initial ratio determined by Hutcheon et al. (1999) from a combination of different carbonate types within various lithologies of the Kaidun Meteorite. We construct an accretion scenario for the Kaidun breccia by comparing the mineralogy and formation time scales of carbonates in the Kaidun CI1 lithologies to the analogous ones of the CI1 chondrite Orgueil. In Orgueil, dolomite precipitation precedes the formation of the first bruennerite grains by a few million years (Hoppe et al. 2007; Petitat et al. 2009). As the CI1 clasts in Kaidun lack breunnerite grains, and considering that aqueous alteration occurred prior to reaccretion of the various clasts onto the Kaidun parent body (e.g., MacPherson et al. 2009), we hypothesize that after rapid accretion and early aqueous alteration occurring within the first approximately 4 Myr after solar system formation, impact disruption of several asteroids and their reassembly into the Kaidun parent asteroid was complete within an additional approximately 2 Myr. This confirms that aqueous alteration, impact, and reaccretion of material in the asteroid belt were early processes that began contemporaneously with chondrule formation. JF - Meteoritics & Planetary Science AU - Petitat, M AU - Marrocchi, Yves AU - McKeegan, K D AU - Mostefaoui, S AU - Meibom, A AU - Zolensky, M E AU - Gounelle, Matthieu Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 275 EP - 283 PB - Meteoritical Society, Fayetteville, AR VL - 46 IS - 2 SN - 1086-9379, 1086-9379 KW - stony meteorites KW - Orgueil Meteorite KW - ion probe data KW - isotopes KW - mass spectra KW - manganese KW - stable isotopes KW - Mn-53 KW - dolomite KW - meteorites KW - radioactive isotopes KW - chronology KW - spectra KW - chondrites KW - chromium KW - CI chondrites KW - breccia KW - accretion KW - parent bodies KW - Cr-53 KW - clasts KW - carbonaceous chondrites KW - isochrons KW - Mn/Cr KW - compaction KW - aqueous alteration KW - Kaidun Meteorite KW - metals KW - NanoSIMS KW - carbonates KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1287378665?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=%28super+53%29+Mn-+%28super+53%29+Cr+ages+of+Kaidun+carbonates&rft.au=Petitat%2C+M%3BMarrocchi%2C+Yves%3BMcKeegan%2C+K+D%3BMostefaoui%2C+S%3BMeibom%2C+A%3BZolensky%2C+M+E%3BGounelle%2C+Matthieu&rft.aulast=Petitat&rft.aufirst=M&rft.date=2011-02-01&rft.volume=46&rft.issue=2&rft.spage=275&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2010.01150.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 33 N1 - PubXState - AR N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2013-02-14 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - accretion; aqueous alteration; breccia; carbonaceous chondrites; carbonates; chondrites; chromium; chronology; CI chondrites; clasts; compaction; Cr-53; dolomite; ion probe data; isochrons; isotopes; Kaidun Meteorite; manganese; mass spectra; metals; meteorites; Mn-53; Mn/Cr; NanoSIMS; Orgueil Meteorite; parent bodies; radioactive isotopes; spectra; stable isotopes; stony meteorites DO - http://dx.doi.org/10.1111/j.1945-5100.2010.01150.x ER - TY - JOUR T1 - Moderately and slightly siderophile element constraints on the depth and extent of melting in early Mars AN - 1287378630; 2013-019674 AB - The thermal history of Mars during accretion and differentiation is important for understanding some fundamental aspects of its evolution such as crust formation, mantle geochemistry, chronology, volatile loss and interior degassing, and atmospheric development. In light of data from new Martian meteorites and exploration rovers, we have made a new estimate of Martian mantle siderophile element depletions. New high pressure and temperature metal-silicate experimental partitioning data and expressions are also available. Using these new constraints, we consider the conditions under which the Martian mantle may have equilibrated with metallic liquid. The resulting conditions that best satisfy six siderophile elements-Ni, Co, W, Mo, P, and Ga-and are consistent with the solidus and liquidus of the Martian mantle phase diagram are a pressure of 14 + or - 3 GPa and temperature of 2100 + or - 200 K. The Martian mantle depletions of Cr and V are also consistent with metal-silicate equilibration in this pressure and temperature range if deep mantle silicate phases are also taken into account. The results are not consistent with either metal-silicate equilibrium at the surface or at the current-day Martian core-mantle boundary. Recent measurements and modeling have concluded that deep ( approximately 17 GPa or 1350 km) mantle melting is required to explain isotopic data for Martian meteorites and the nature of differentiation into core, mantle, and crust. This is in general agreement with our estimates of the conditions of Martian core formation based on siderophile elements that result in an intermediate depth magma ocean scenario for metal-silicate equilibrium. JF - Meteoritics & Planetary Science AU - Righter, Kevin AU - Chabot, Nancy L Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 157 EP - 176 PB - Meteoritical Society, Fayetteville, AR VL - 46 IS - 2 SN - 1086-9379, 1086-9379 KW - stony meteorites KW - Martian meteorites KW - mantle KW - Mars KW - thermal history KW - core-mantle boundary KW - lithophile elements KW - temperature KW - Mars Exploration Rover KW - partitioning KW - meteorites KW - melting KW - phase equilibria KW - magma oceans KW - accretion KW - pressure KW - differentiation KW - siderophile elements KW - high pressure KW - equilibrium KW - achondrites KW - depth KW - terrestrial planets KW - planets KW - volatiles KW - terrestrial comparison KW - core KW - high temperature KW - crust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1287378630?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Moderately+and+slightly+siderophile+element+constraints+on+the+depth+and+extent+of+melting+in+early+Mars&rft.au=Righter%2C+Kevin%3BChabot%2C+Nancy+L&rft.aulast=Righter&rft.aufirst=Kevin&rft.date=2011-02-01&rft.volume=46&rft.issue=2&rft.spage=157&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2010.01140.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 122 N1 - PubXState - AR N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2013-02-14 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - accretion; achondrites; core; core-mantle boundary; crust; depth; differentiation; equilibrium; high pressure; high temperature; lithophile elements; magma oceans; mantle; Mars; Mars Exploration Rover; Martian meteorites; melting; meteorites; partitioning; phase equilibria; planets; pressure; siderophile elements; stony meteorites; temperature; terrestrial comparison; terrestrial planets; thermal history; volatiles DO - http://dx.doi.org/10.1111/j.1945-5100.2010.01140.x ER - TY - JOUR T1 - Cosmic-ray exposure history of the Norton County enstatite achondrite AN - 1287377780; 2013-019681 AB - We report measurements of cosmogenic nuclides in up to 11 bulk samples from various depths in Norton County. The activities of (super 36) Cl, (super 41) Ca, (super 26) Al, and (super 10) Be were measured by accelerator mass spectrometry; the concentrations of the stable isotopes of He, Ne, Ar, and Sm were measured by electron and thermal ionization mass spectrometry, respectively. Production rates for the nuclides were modeled using the LAHET and the Monte Carlo N-Particle codes. Assuming a one-stage irradiation of a meteoroid with a pre-atmospheric radius of approximately 50 cm, the model satisfactorily reproduces the depth profiles of (super 10) Be, (super 26) Al, and (super 53) Mn (<6%) but overestimates the (super 41) Ca concentrations by about 20%. (super 3) He, (super 21) Ne, and (super 26) Al data give a one-stage cosmic-ray exposure (CRE) age of 115 Ma. Argon-36 released at intermediate temperatures, (super 36) Arn, is attributed to production by thermal neutrons. From the values of (super 36) Arn, an assumed average Cl concentration of 4 ppm, and a CRE age of 115 Ma, we estimate thermal neutron fluences of 1-4 X 10 (super 16) neutrons cm (super -2) . We infer comparable values from epsilon (super 149) Sm and epsilon (super 150) Sm. Values calculated from (super 41) Ca and a CRE age of 115 Ma, 0.2-1.4 X 10 (super 16) neutrons cm (super -2) , are lower by a factor of approximately 2.5, indicating that nearly half of the (super 149) Sm captures occurred earlier. One possible irradiation history places the center of proto-Norton County at a depth of 88 cm in a large body for 140 Ma prior to its liberation as a meteoroid with a radius of 50 cm and further CRE for 100 Ma. JF - Meteoritics & Planetary Science AU - Herzog, G F AU - Albrecht, Achim AU - Ma, Peixue AU - Fink, David AU - Klein, Jeffrey AU - Middleton, Roy AU - Bogard, Donald D AU - Nyquist, L E AU - Shih, C Y AU - Garrison, D H AU - Reese, Young AU - Masarek, J AU - Reedy, R C AU - Rugel, G AU - Faestermann, T AU - Korschinek, G Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 284 EP - 310 PB - Meteoritical Society, Fayetteville, AR VL - 46 IS - 2 SN - 1086-9379, 1086-9379 KW - calcium KW - neutron activation analysis data KW - irradiation KW - stony meteorites KW - isotopes KW - Ca-41 KW - thermal neutrons KW - thermal ionization mass spectra KW - halogens KW - mass spectra KW - cosmogenic elements KW - meteoroids KW - exposure age KW - stable isotopes KW - accelerator mass spectra KW - Norton County Meteorite KW - meteorites KW - Al-26 KW - radioactive isotopes KW - noble gases KW - neon KW - aluminum KW - helium KW - cosmic rays KW - spectra KW - samarium KW - rare earths KW - chlorine KW - alkaline earth metals KW - Be-10 KW - parent bodies KW - Cl-36 KW - aubrite KW - achondrites KW - size KW - argon KW - neutrons KW - metals KW - beryllium KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1287377780?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Cosmic-ray+exposure+history+of+the+Norton+County+enstatite+achondrite&rft.au=Herzog%2C+G+F%3BAlbrecht%2C+Achim%3BMa%2C+Peixue%3BFink%2C+David%3BKlein%2C+Jeffrey%3BMiddleton%2C+Roy%3BBogard%2C+Donald+D%3BNyquist%2C+L+E%3BShih%2C+C+Y%3BGarrison%2C+D+H%3BReese%2C+Young%3BMasarek%2C+J%3BReedy%2C+R+C%3BRugel%2C+G%3BFaestermann%2C+T%3BKorschinek%2C+G&rft.aulast=Herzog&rft.aufirst=G&rft.date=2011-02-01&rft.volume=46&rft.issue=2&rft.spage=284&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2010.01154.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 63 N1 - PubXState - AR N1 - Document feature - illus. incl. 12 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2013-09-20 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - accelerator mass spectra; achondrites; Al-26; alkaline earth metals; aluminum; argon; aubrite; Be-10; beryllium; Ca-41; calcium; chlorine; Cl-36; cosmic rays; cosmogenic elements; exposure age; halogens; helium; irradiation; isotopes; mass spectra; metals; meteorites; meteoroids; neon; neutron activation analysis data; neutrons; noble gases; Norton County Meteorite; parent bodies; radioactive isotopes; rare earths; samarium; size; spectra; stable isotopes; stony meteorites; thermal ionization mass spectra; thermal neutrons DO - http://dx.doi.org/10.1111/j.1945-5100.2010.01154.x ER - TY - JOUR T1 - Observations of Saharan dust microphysical and optical properties from the Eastern Atlantic during NAMMA airborne field campaign AN - 856788706; 14309527 AB - As part of the international project entitled "African Monsoon Multidisciplinary Analysis (AMMA)", NAMMA (NASA AMMA) aimed to gain a better understanding of the relationship between the African Easterly Waves (AEWs), the Sahara Air Layer (SAL), and tropical cyclogenesis. The NAMMA airborne field campaign was based out of the Cape Verde Islands during the peak of the hurricane season, i.e., August and September 2006. Multiple Sahara dust layers were sampled during 62 encounters in the eastern portion of the hurricane main development region, covering both the eastern North Atlantic Ocean and the western Saharan desert (i.e., 5-22 degree N and 10-35 degree W). The centers of these layers were located at altitudes between 1.5 and 3.3 km and the layer thickness ranged from 0.5 to 3 km. Detailed dust microphysical and optical properties were characterized using a suite of in-situ instruments aboard the NASA DC-8 that included a particle counter, an Ultra-High Sensitivity Aerosol Spectrometer, an Aerodynamic Particle Sizer, a nephelometer, and a Particle Soot Absorption Photometer. The NAAMA sampling inlet has a size cut (i.e., 50% transmission efficiency size) of approximately 4 mu m in diameter for dust particles, which limits the representativeness of the NAMMA observational findings. The NAMMA dust observations showed relatively low particle number densities, ranging from 268 to 461 cm super(-3), but highly elevated volume density with an average at 45 mu m super(3) cm super(-3). NAMMA dust particle size distributions can be well represented by tri-modal lognormal regressions. The estimated volume median diameter (VMD) is averaged at 2.1 mu m with a small range of variation regardless of the vertical and geographical sampling locations. The Aangstroem Exponent assessments exhibited strong wavelength dependence for absorption but a weak one for scattering. The single scattering albedo was estimated at 0.97 plus or minus 0.02. The imaginary part of the refractive index for Sahara dust was estimated at 0.0022, with a range from 0.0015 to 0.0044. Closure analysis showed that observed scattering coefficients are highly correlated with those calculated from spherical Mie-Theory and observed dust particle size distributions. These values are generally consistent with literature values reported from studies with similar particle sampling size range. JF - Atmospheric Chemistry and Physics AU - Chen, G AU - Ziemba, L D AU - Chu, DA AU - Thornhill, K L AU - Schuster, G L AU - Winstead, EL AU - Diskin, G S AU - Ferrare, R A AU - Burton, S P AU - Ismail, S AD - NASA Langley Research Center, Hampton, VA 23681, USA Y1 - 2011/01/26/ PY - 2011 DA - 2011 Jan 26 SP - 723 EP - 740 PB - European Geophysical Society, Max-Planck-Str. 13 Katlenburg-Lindau Germany VL - 11 IS - 2 SN - 1680-7316, 1680-7316 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Particle Size KW - Optical properties KW - Statistical analysis KW - Dust particles KW - African easterly waves KW - Assessments KW - Absorption KW - Dust particle size distribution KW - Seasonal variability KW - Sampling KW - Optical Properties KW - Refractive index KW - ASE, Atantic, Cape Verde Is. KW - Particle size KW - Atmospheric particulates KW - Saharan dust KW - Density KW - Albedo KW - Tropical cyclogenesis KW - AN, North Atlantic KW - Dusts KW - Hurricanes KW - Deserts KW - Africa, Sahara Desert KW - Photometers KW - Transmission loss KW - Eolian dust KW - SW 5010:Network design KW - Q2 09223:Optical properties KW - AQ 00006:Sewage KW - M2 551.593:Optical (551.593) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/856788706?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Chemistry+and+Physics&rft.atitle=Observations+of+Saharan+dust+microphysical+and+optical+properties+from+the+Eastern+Atlantic+during+NAMMA+airborne+field+campaign&rft.au=Chen%2C+G%3BZiemba%2C+L+D%3BChu%2C+DA%3BThornhill%2C+K+L%3BSchuster%2C+G+L%3BWinstead%2C+EL%3BDiskin%2C+G+S%3BFerrare%2C+R+A%3BBurton%2C+S+P%3BIsmail%2C+S&rft.aulast=Chen&rft.aufirst=G&rft.date=2011-01-26&rft.volume=11&rft.issue=2&rft.spage=723&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics&rft.issn=16807316&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-03-01 N1 - Last updated - 2014-05-02 N1 - SubjectsTermNotLitGenreText - Particle size; Hurricanes; Atmospheric particulates; Deserts; Albedo; Optical properties; Photometers; Transmission loss; Eolian dust; Saharan dust; Statistical analysis; Dust particle size distribution; Seasonal variability; Tropical cyclogenesis; Dust particles; African easterly waves; Refractive index; Assessments; Density; Particle Size; Absorption; Optical Properties; Sampling; Dusts; Africa, Sahara Desert; AN, North Atlantic; ASE, Atantic, Cape Verde Is. ER - TY - RPRT T1 - Water Management and Climate Change in the Himalayas: Providing New Tools to Prevent Hazards and Enable the Understanding of Changing Climate AN - 918065977; 16192406 AB - The HIMALA project aims at developing a system that will aid populations at risk on early warning of floods, droughts and other water and climate-induced natural hazards in the Himalayan region, an area that is home to over 200 million inhabitants in Afghanistan, Bangladesh, Bhutan, China, India, Burma, Nepal, and Pakistan. In such a politically charged region, developing tools that are open, accessible and widely used is a critical part of improved water management. Our primary partner in the region, the International Center for Integrated Mountain Development (ICIMOD), has long experience in working with the hydrological and meteorological agencies of these governments to improve skills, collaboration and cooperation. The developed hydrological model provides the means to estimate and monitor cryospheric melt and its impact on streamflow at a daily resolution. This tool is especially valuable in a region that is marked by extreme inter- and intra-annual variability in streamflow, influenced by the duration and intensity of precipitation events, temperature change, and annual snow-pack levels. Across the Himalayan region, population centers are directly impacted by abrupt and extreme climate change events that affect hydrological flow, including the occurrence of GLOF (Glacier Lake Outburst Flood) events. Therefore, there is a critical need for climate monitoring tools across the region that can be used at the local institutional level. We developed the GEOStreamFlowMonitoring tool that can be implemented by local institutions to examine climate variability and prepare for emergency hazards. In this talk we will outline our project and discuss the development of our hydrological model, international collaborations, and implementation across various social, political, and science sectors. JF - American Meteorological Society. [np]. 23 Jan 2011. AU - Brown, Molly AU - Yager, K AU - Habib, S AU - Artan, G AU - Racovinteanu, A AU - Shrestha, M Y1 - 2011/01/23/ PY - 2011 DA - 2011 Jan 23 PB - American Meteorological Society KW - Aqualine Abstracts; Water Resources Abstracts; Environment Abstracts; Sustainability Science Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Rainfall KW - Socioeconomics KW - Glacial lakes KW - Afghanistan KW - India KW - Lakes KW - Hydrologic Models KW - Bangladesh KW - Temperature changes KW - Environmental monitoring KW - Policies KW - Pakistan KW - Hydrologic analysis KW - Environmental impact KW - Stream flow KW - Water management KW - Variability KW - Water Management KW - Politics KW - Climate change KW - Pakistan, Himalayas KW - Bhutan KW - Nepal KW - Flow rates KW - Hazards KW - Climatic variability KW - Floods KW - Meteorology KW - American Meteorological Society KW - Climates KW - Temperature KW - glaciers KW - Streamflow KW - Precipitation KW - Emergencies KW - Governments KW - China, People's Rep. KW - AQ 00006:Sewage KW - M2 551.583:Variations (551.583) KW - SW 0810:General KW - M3 1010:Issues in Sustainable Development KW - Q2 09171:Dynamics of lakes and rivers KW - ENA 20:Weather Modification & Geophysical Change UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/918065977?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Aqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=report&rft.jtitle=&rft.atitle=&rft.au=Brown%2C+Molly%3BYager%2C+K%3BHabib%2C+S%3BArtan%2C+G%3BRacovinteanu%2C+A%3BShrestha%2C+M&rft.aulast=Brown&rft.aufirst=Molly&rft.date=2011-01-23&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Water+Management+and+Climate+Change+in+the+Himalayas%3A+Providing+New+Tools+to+Prevent+Hazards+and+Enable+the+Understanding+of+Changing+Climate&rft.title=Water+Management+and+Climate+Change+in+the+Himalayas%3A+Providing+New+Tools+to+Prevent+Hazards+and+Enable+the+Understanding+of+Changing+Climate&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-01-01 N1 - Last updated - 2016-07-07 ER - TY - JOUR T1 - Seismic Detection of the Lunar Core AN - 1777120374; 14266997 AB - Despite recent insight regarding the history and current state of the Moon from satellite sensing and analyses of limited Apollo-era seismic data, deficiencies remain in our understanding of the deep lunar interior. We reanalyzed Apollo lunar seismograms using array-processing methods to search for the presence of reflected and converted seismic energy from the core. Our results suggest the presence of a solid inner and fluid outer core, overlain by a partially molten boundary layer. The relative sizes of the inner and outer core suggest that the core is approximately 60% liquid by volume. Based on phase diagrams of iron alloys and the presence of partial melt, the core probably contains less than 6 weight % of lighter alloying components, which is consistent with a volatile-depleted interior. JF - Science (Washington) AU - Weber, Renee C AU - Lin, Pei-Ying AU - Garnero, Edward J AU - Williams, Quentin AU - Lognonne, Philippe AD - NASA Marshall Space Flight Center, 320 Sparkman Drive, Huntsville, AL 35805, USA Y1 - 2011/01/21/ PY - 2011 DA - 2011 Jan 21 SP - 309 EP - 312 PB - American Association for the Advancement of Science, 1200 New York Avenue, NW Washington DC 20005 USA VL - 331 IS - 6015 SN - 0036-8075, 0036-8075 KW - Solid State and Superconductivity Abstracts (SO); Environmental Engineering Abstracts (EN); Aerospace & High Technology Database (AH) KW - Seismic phenomena KW - Searching KW - Weight reduction KW - Seismic engineering KW - Lunar core KW - Ferrous alloys KW - Liquids KW - Alloying UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777120374?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+%28Washington%29&rft.atitle=Seismic+Detection+of+the+Lunar+Core&rft.au=Weber%2C+Renee+C%3BLin%2C+Pei-Ying%3BGarnero%2C+Edward+J%3BWilliams%2C+Quentin%3BLognonne%2C+Philippe&rft.aulast=Weber&rft.aufirst=Renee&rft.date=2011-01-21&rft.volume=331&rft.issue=6015&rft.spage=309&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-12-01 N1 - Last updated - 2016-05-18 ER - TY - JOUR T1 - A submillimeter mapping survey of Herbig AeBe stars AN - 1416689276; 2013-060170 AB - We have acquired submillimeter observations of 33 fields containing 37 Herbig Ae/Be (HAEBE) stars or potential HAEBE stars, including SCUBA maps of all but two of these stars. Nine target stars show extended dust emission. The other 18 are unresolved, suggesting that the dust envelopes or disks around these stars are less than a few arcseconds in angular size. In several cases, we find that the strongest submillimeter emission originates from younger, heavily embedded sources rather than from the HAEBE star, which means that previous models must be viewed with caution. These new data, in combination with far-infrared flux measurements available in the literature, yield spectral energy distributions (SEDs) from far-infrared to millimeter wavelengths for all the observed objects. Isothermal fits to these SEDs demonstrate excellent fits, in most cases, to the flux densities longward of 100 mu m. We find that a smaller proportion of B-type stars than A- and F-type stars are surrounded by circumstellar disks, suggesting that disks around B stars dissipate on shorter timescales than those around later spectral types. Our models also reveal that the mass of the circumstellar material and the value of beta are correlated, with low masses corresponding to low values of beta . Since low values of beta imply large grain sizes, our results suggest that a large fraction of the mass in low-beta sources is locked up in very large grains. Several of the isolated HAEBE stars have disks with very flat submillimeter SEDs. These disks may be on the verge of forming planetary systems. Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The = Astrophysical Journal AU - Sandell, Goeran AU - Weintraub, David A AU - Hamidouche, Murad Y1 - 2011/01/20/ PY - 2011 DA - 2011 Jan 20 EP - paper 26 PB - University of Chicago Press for the American Astronomical Society, Chicago, IL VL - 727 IS - 1 SN - 0004-637X, 0004-637X KW - imagery KW - HAEBE stars KW - grain size KW - mapping KW - protoplanetary disk KW - interplanetary dust KW - infrared spectra KW - mass KW - cosmic dust KW - detection KW - stars KW - Herbig AeBe stars KW - surveys KW - spectra KW - circumstellar disk KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1416689276?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+%3D+Astrophysical+Journal&rft.atitle=A+submillimeter+mapping+survey+of+Herbig+AeBe+stars&rft.au=Sandell%2C+Goeran%3BWeintraub%2C+David+A%3BHamidouche%2C+Murad&rft.aulast=Sandell&rft.aufirst=Goeran&rft.date=2011-01-20&rft.volume=727&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+%3D+Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F727%2F1%2F26 L2 - http://iopscience.iop.org/0004-637X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 243 N1 - PubXState - IL N1 - Document feature - illus. incl. 6 tables, sketch maps N1 - Last updated - 2013-08-02 N1 - SubjectsTermNotLitGenreText - circumstellar disk; cosmic dust; detection; grain size; HAEBE stars; Herbig AeBe stars; imagery; infrared spectra; interplanetary dust; mapping; mass; protoplanetary disk; spectra; stars; surveys DO - http://dx.doi.org/10.1088/0004-637X/727/1/26 ER - TY - JOUR T1 - Overshooting of clean tropospheric air in the tropical lower stratosphere as seen by the CALIPSO lidar AN - 856789516; 14309417 AB - The evolution of aerosols in the tropical upper troposphere/lower stratosphere between June 2006 and October 2009 is examined using the observations of the space borne CALIOP lidar aboard the CALIPSO satellite. Superimposed on several volcanic plumes and soot from an extreme biomass-burning event in 2009, the measurements reveal the existence of fast cleansing episodes of the lower stratosphere to altitudes as high as 20 km. The cleansing of the full 14-20 km layer takes place within 1-4 months. Its coincidence with the maximum of convective activity in the southern tropics, suggests that the cleansing is the result of a large number of overshooting towers, injecting aerosol-poor tropospheric air into the lower stratosphere. The enhancements of aerosols at the tropopause level during the NH summer may be due to the same transport process but associated with intense sources of aerosols at the surface. Since, the tropospheric air flux derived from CALIOP observations during North Hemisphere winter is 5-20 times larger than the slow ascent by radiative heating usually assumed, the observations suggest that convective overshooting is a major contributor to troposphere-to-stratosphere transport with concommitant implications to the Tropical Tropopause Layer top height, chemistry and thermal structure. JF - Atmospheric Chemistry and Physics Discussions AU - Vernier, J P AU - Pommereau, J P AU - Thomason, L W AU - Pelon, J AU - Garnier, A AU - Deshler, T AU - Jumelet, J AU - Nielsen, J K AD - NASA Langley Research Center, Hampton, VA 23666, USA Y1 - 2011/01/06/ PY - 2011 DA - 2011 Jan 06 SP - 163 EP - 192 PB - European Geosciences Union, c/o E.O.S.T. Strasbourg Cedex 67084 France VL - 11 IS - 1 SN - 1680-7367, 1680-7367 KW - Sustainability Science Abstracts; Meteorological & Geoastrophysical Abstracts KW - Tropical tropopause KW - Tropopause KW - Lidar KW - transport processes KW - Volcanic activity KW - Radiative heating KW - Plumes KW - Aerosols KW - tropopause KW - Volcanoes KW - Troposphere KW - Stratosphere KW - Soot particles KW - Convective activity KW - Lidar applications KW - Atmospheric chemistry KW - summer KW - M3 1010:Issues in Sustainable Development KW - M2 551.510.3/.4:Physical Properties/Composition (551.510.3/.4) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/856789516?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Chemistry+and+Physics+Discussions&rft.atitle=Overshooting+of+clean+tropospheric+air+in+the+tropical+lower+stratosphere+as+seen+by+the+CALIPSO+lidar&rft.au=Vernier%2C+J+P%3BPommereau%2C+J+P%3BThomason%2C+L+W%3BPelon%2C+J%3BGarnier%2C+A%3BDeshler%2C+T%3BJumelet%2C+J%3BNielsen%2C+J+K&rft.aulast=Vernier&rft.aufirst=J&rft.date=2011-01-06&rft.volume=11&rft.issue=1&rft.spage=163&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics+Discussions&rft.issn=16807367&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-03-01 N1 - Last updated - 2012-03-29 N1 - SubjectsTermNotLitGenreText - Tropical tropopause; Tropopause; Volcanic activity; Atmospheric chemistry; Lidar applications; Convective activity; Radiative heating; Stratosphere; Soot particles; Aerosols; tropopause; Volcanoes; summer; transport processes; Lidar; Troposphere; Plumes ER - TY - JOUR T1 - An Example of Vertical Resolution Impact on WRF-Var Analysis AN - 968180215; 16502803 AB - Two different configurations of the Weather Research and Forecasting (WRF) model are used to examine the effect of vertical resolution on its 3D variational data assimilation system (WRF-Var). These configurations use the same horizontal spacing, physical parameterizations, input dataset for initial and boundary conditions, and observation data. The only difference is in their vertical resolution: the first set uses 37 vertical levels with 50 hPa spacing near the tropopause, while the second uses 50 vertical levels with 20 hPa spacing near the tropopause. When initialing the WRF model with the North American Mesoscale (NAM) analysis, the low-resolution case exhibits a large vertical interpolation error near the tropopause compared to the high-resolution case due to the large gradient in lapse rate at the tropopause. The difference in interpolation error persists through the data assimilation time. When the profiles of Atmospheric InfrRed Sounder (AIRS) are assimilated, the larger upper-level interpolation error in the low-resolution case produces an analysis with warmer low-level temperatures and larger surface pressure increments compared to the high-resolution case. The difference is most pronounced over the eastern Gulf of Mexico where the largest upper-level interpolation errors occur. The surface pressure increase, together with the low-level temperature increase, contributes to a geopotential height bias throughout the troposphere. Increasing the number of model levels to 50 with a vertical spacing of 20 hPa near the tropopause reduces the spurious increases in surface pressure and geopotential height. The interpolation error and its impact on the WRF-Var analysis are presented in both a single test case and a 37-day time series. JF - National Weather Association Electronic Journal of Operational Meteorology AU - Chou, S-H AD - Earth Science Office, NASA Marshall Space Flight Center, Huntsville, Alabama, USA Y1 - 2011 PY - 2011 DA - 2011 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Prediction KW - Tropopause KW - Time series analysis KW - Gulfs KW - Data assimilation KW - Boundary conditions KW - Surface pressure KW - Interpolation errors KW - Forecasting KW - Weather forecasting KW - Testing Procedures KW - Weather KW - Boundary Conditions KW - Temperature KW - Troposphere KW - Errors KW - Model Studies KW - Dynamic height KW - ASW, Mexico Gulf KW - Profiles KW - Geopotential field analysis KW - Mesoscale models KW - Lapse rates KW - Q2 09243:Structure, mechanics and thermodynamics KW - SW 5010:Network design KW - AQ 00007:Industrial Effluents KW - M2 551.509.1/.5:Forecasting (551.509.1/.5) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/968180215?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=National+Weather+Association+Electronic+Journal+of+Operational+Meteorology&rft.atitle=An+Example+of+Vertical+Resolution+Impact+on+WRF-Var+Analysis&rft.au=Chou%2C+S-H&rft.aulast=Chou&rft.aufirst=S-H&rft.date=2011-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=National+Weather+Association+Electronic+Journal+of+Operational+Meteorology&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-04-01 N1 - Last updated - 2014-12-11 N1 - SubjectsTermNotLitGenreText - Prediction; Tropopause; Troposphere; Weather forecasting; Dynamic height; Geopotential field analysis; Interpolation errors; Mesoscale models; Lapse rates; Time series analysis; Boundary conditions; Data assimilation; Surface pressure; Testing Procedures; Weather; Profiles; Boundary Conditions; Temperature; Forecasting; Errors; Gulfs; Model Studies; ASW, Mexico Gulf ER - TY - RPRT T1 - NASA Education Recommendation Report. Education Design Team 2011 AN - 964173086; ED527016 AB - The people at National Aeronautics and Space Administration (NASA) are passionate about their work. NASA's missions are exciting to learners of all ages. Since its creation in 1958, NASA's people have been passionate about sharing their inspiring discoveries, research and exploration with students and educators. When retired Marine Corps General and astronaut Charlie Bolden first toured NASA's Centers as the new NASA Administrator, he and Deputy Administrator Lori Garver saw this passion for education in hundreds of education projects conducted across the Agency. In May 2010, Bolden and Garver chartered an Education Design Team composed of 12 members chosen from the Office of Education, NASA's Mission Directorates and Centers for their depth of knowledge and education expertise, and directed them to evaluate the Agency's program in the context of current trends in education. By improving NASA's educational offerings, he was confident that the Agency can play a leading role in inspiring student interest in science, technology, engineering and mathematics (STEM) as few other organizations can. After several months of intense effort, including meeting with education experts; reviewing Administration policies, congressional direction and education research; and seeking input from those passionate about education at NASA, the Education Design Team made six recommendations to improve the impact of NASA's Education Program: (1) Focus the NASA Education Program to improve its impact on areas of greatest national need; (2) Identify and strategically manage NASA Education partnerships; (3) Participate in National and State STEM Education policy discussions; (4) Establish a structure to allow the Office of Education, Centers and Mission Directorates to implement a strategically integrated portfolio; (5) Expand the charter of the Education Coordinating Committee to enable deliberate Education Program design; and (6) Improve communication to inspire learners. Appended are: (1) Terms and Definitions; (2) Reference Documents; (3) Education Design Team Survey Questions; (4) Experts Consulted; and (5) Education Design Team. (Contains 3 figures, 17 footnotes and 21 endnotes.) Y1 - 2011 PY - 2011 DA - 2011 SP - 64 PB - National Aeronautics and Space Administration. Public Communications and Inquiries Management Office, NASA Headquarters Suite 1M32, Washington, DC 20546-0001. KW - ERIC, Resources in Education (RIE) KW - Elementary Secondary Education KW - Higher Education KW - Research Reports KW - Program Design KW - Government School Relationship KW - Improvement Programs KW - Science Interests KW - STEM Education KW - Institutional Advancement KW - Integrated Activities KW - Educational Needs KW - Educational Improvement KW - Aviation Technology KW - Partnerships in Education KW - Student Interests KW - Educational Change KW - Policy Formation KW - Educational Policy KW - Alignment (Education) KW - Change Strategies KW - Space Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/964173086?accountid=14244 LA - English DB - ERIC N1 - Last updated - 2014-03-21 ER - TY - JOUR T1 - Early basaltic volcanism and late heavy bombardment on Vesta; U-Pb ages of small zircons and phosphates in eucrites AN - 959109331; 2012-035005 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Zhou, Qin AU - Yin, Qingzhu AU - Bottke, Bill AU - Claeys, P AU - Li, Xianhua AU - Wu, Fuyuan AU - Li, Quili AU - Liu, Yu AU - Tang, Guo-Qiang AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2575 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - U/Pb KW - stony meteorites KW - ion probe data KW - asteroids KW - late heavy bombardment KW - mass spectra KW - meteorites KW - Bereba Meteorite KW - dates KW - volcanism KW - orthosilicates KW - absolute age KW - spectra KW - basaltic composition KW - Cachari Meteorite KW - zircon group KW - apatite KW - Vesta Asteroid KW - Moon KW - HED meteorites KW - zircon KW - phosphates KW - metamorphism KW - achondrites KW - nesosilicates KW - eucrite KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959109331?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Early+basaltic+volcanism+and+late+heavy+bombardment+on+Vesta%3B+U-Pb+ages+of+small+zircons+and+phosphates+in+eucrites&rft.au=Zhou%2C+Qin%3BYin%2C+Qingzhu%3BBottke%2C+Bill%3BClaeys%2C+P%3BLi%2C+Xianhua%3BWu%2C+Fuyuan%3BLi%2C+Quili%3BLiu%2C+Yu%3BTang%2C+Guo-Qiang%3BAnonymous&rft.aulast=Zhou&rft.aufirst=Qin&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2575.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 15, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - absolute age; achondrites; apatite; asteroids; basaltic composition; Bereba Meteorite; Cachari Meteorite; dates; eucrite; HED meteorites; ion probe data; late heavy bombardment; mass spectra; metamorphism; meteorites; Moon; nesosilicates; orthosilicates; phosphates; silicates; spectra; stony meteorites; U/Pb; Vesta Asteroid; volcanism; zircon; zircon group ER - TY - JOUR T1 - Characterizing the 3-D water distribution on the Mars surface AN - 959109288; 2012-034967 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Teodoro, Luis F A AU - Elphic, Richard C AU - Eke, Vincent R AU - Roush, Ted L AU - Marzo, Giuseppe A AU - Brown, Adrian J AU - Feldman, William C AU - Maurice, Sylvestre AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2187 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - water KW - soils KW - hydrates KW - CRISM KW - statistical analysis KW - Mars Odyssey Neutron Spectrometer KW - Mars Reconnaissance Orbiter KW - Mars KW - correlation KW - distribution KW - Compact Reconnaissance Imaging Spectrometer for Mars KW - Mars Odyssey KW - terrestrial planets KW - planets KW - neutrons KW - ice KW - hydrogen KW - crosscorrelation KW - epithermal neutrons KW - reflectance KW - water-equivalent hydrogen KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959109288?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Characterizing+the+3-D+water+distribution+on+the+Mars+surface&rft.au=Teodoro%2C+Luis+F+A%3BElphic%2C+Richard+C%3BEke%2C+Vincent+R%3BRoush%2C+Ted+L%3BMarzo%2C+Giuseppe+A%3BBrown%2C+Adrian+J%3BFeldman%2C+William+C%3BMaurice%2C+Sylvestre%3BAnonymous&rft.aulast=Teodoro&rft.aufirst=Luis+F&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2187.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 1, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Compact Reconnaissance Imaging Spectrometer for Mars; correlation; CRISM; crosscorrelation; distribution; epithermal neutrons; hydrates; hydrogen; ice; Mars; Mars Odyssey; Mars Odyssey Neutron Spectrometer; Mars Reconnaissance Orbiter; neutrons; planets; reflectance; soils; statistical analysis; terrestrial planets; water; water-equivalent hydrogen ER - TY - JOUR T1 - Covariant C and O isotope trends in some terrestrial carbonates and ALH 84001; possible linkage through similar formation processes AN - 959109168; 2012-034961 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Volk, Kathryn E AU - Niles, Paul B AU - Socki, Richard A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1975 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - United States KW - photosynthesis KW - stony meteorites KW - oxygen KW - isotopes KW - Martian meteorites KW - enrichment KW - terrestrial analogs KW - stable isotopes KW - carbon dioxide KW - meteorites KW - sedimentary rocks KW - Sunset Crater KW - carbon KW - ALH 84001 KW - covariance analysis KW - isotope ratios KW - C-13/C-12 KW - statistical analysis KW - photochemistry KW - O-18/O-16 KW - achondrites KW - evaporation KW - biogenic processes KW - Allan Hills Meteorites KW - Antarctica KW - precipitation KW - Arizona KW - atmospheric pressure KW - carbonate rocks KW - carbonates KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959109168?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Covariant+C+and+O+isotope+trends+in+some+terrestrial+carbonates+and+ALH+84001%3B+possible+linkage+through+similar+formation+processes&rft.au=Volk%2C+Kathryn+E%3BNiles%2C+Paul+B%3BSocki%2C+Richard+A%3BAnonymous&rft.aulast=Volk&rft.aufirst=Kathryn&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1975.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 16 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 30, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; ALH 84001; Allan Hills Meteorites; Antarctica; Arizona; atmospheric pressure; biogenic processes; C-13/C-12; carbon; carbon dioxide; carbonate rocks; carbonates; covariance analysis; enrichment; evaporation; isotope ratios; isotopes; Martian meteorites; meteorites; O-18/O-16; oxygen; photochemistry; photosynthesis; precipitation; sedimentary rocks; stable isotopes; statistical analysis; stony meteorites; Sunset Crater; terrestrial analogs; United States ER - TY - JOUR T1 - Spectral analysis of nontronite-magnesite-olivine mixtures and implications for carbonates on Mars AN - 959109121; 2012-034958 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Perry, K A AU - Bishop, Janice L AU - Dyar, M Darby AU - Blake, D F AU - Peel, S AU - Brown, Adrian J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1554 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - Libya Montes KW - near-infrared spectra KW - experimental studies KW - CRISM KW - X-ray diffraction data KW - magnesite KW - olivine group KW - Mars KW - nontronite KW - infrared spectra KW - clay minerals KW - terrestrial planets KW - nesosilicates KW - planets KW - laboratory studies KW - olivine KW - orthosilicates KW - sheet silicates KW - spectra KW - reflectance KW - carbonates KW - Mossbauer spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959109121?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Spectral+analysis+of+nontronite-magnesite-olivine+mixtures+and+implications+for+carbonates+on+Mars&rft.au=Perry%2C+K+A%3BBishop%2C+Janice+L%3BDyar%2C+M+Darby%3BBlake%2C+D+F%3BPeel%2C+S%3BBrown%2C+Adrian+J%3BAnonymous&rft.aulast=Perry&rft.aufirst=K&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1554.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 30, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - carbonates; clay minerals; CRISM; experimental studies; infrared spectra; laboratory studies; Libya Montes; magnesite; Mars; Mossbauer spectra; near-infrared spectra; nesosilicates; nontronite; olivine; olivine group; orthosilicates; planets; reflectance; sheet silicates; silicates; spectra; terrestrial planets; X-ray diffraction data ER - TY - JOUR T1 - Acid-volatile sulfur isotopic composition of six shergottites AN - 959109078; 2012-034930 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Franz, H B AU - Farquhar, J AU - Irving, A J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2338 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - NWA 4468 KW - NWA 2986 KW - stony meteorites KW - NWA 6162 KW - acid-volatile sulfur KW - isotopes KW - Martian meteorites KW - isotope ratios KW - mass spectra KW - hydrogen sulfide KW - achondrites KW - stable isotopes KW - SNC Meteorites KW - meteorites KW - shergottite KW - S-34/S-32 KW - NWA 6342 KW - sequential extraction KW - sulfur KW - NWA 5990 KW - spectra KW - heterogeneity KW - NWA 2975 KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959109078?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Acid-volatile+sulfur+isotopic+composition+of+six+shergottites&rft.au=Franz%2C+H+B%3BFarquhar%2C+J%3BIrving%2C+A+J%3BAnonymous&rft.aulast=Franz&rft.aufirst=H&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2338.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Nov. 30, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; acid-volatile sulfur; heterogeneity; hydrogen sulfide; isotope ratios; isotopes; Martian meteorites; mass spectra; meteorites; NWA 2975; NWA 2986; NWA 4468; NWA 5990; NWA 6162; NWA 6342; S-34/S-32; sequential extraction; shergottite; SNC Meteorites; spectra; stable isotopes; stony meteorites; sulfur ER - TY - JOUR T1 - Acid-sulfate-weathering activity in shergottite sites on Mars recorded in GRIM glasses AN - 959109058; 2012-034929 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Rao, M N AU - Nyquist, L E AU - Ross, K AU - Sutton, S R AU - Schwandt, C S AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1476 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - magnesium KW - Shergotty Meteorite KW - stony meteorites KW - Martian meteorites KW - Los Angeles Meteorite KW - Mars KW - Elephant Moraine Meteorites KW - melts KW - iron KW - electron probe data KW - SNC Meteorites KW - meteorites KW - impact melts KW - EETA 79001 KW - major elements KW - mass balance KW - acidic composition KW - mobility KW - chemical weathering KW - alkaline earth metals KW - sulfate ion KW - gas-rich impact melts KW - sulfates KW - QUE 94201 KW - achondrites KW - weathering KW - terrestrial planets KW - planets KW - Antarctica KW - shergottite KW - metals KW - Queen Alexandra Range Meteorites KW - Zagami Meteorite KW - parent materials KW - GRIM glasses KW - sulfur KW - regolith KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959109058?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Acid-sulfate-weathering+activity+in+shergottite+sites+on+Mars+recorded+in+GRIM+glasses&rft.au=Rao%2C+M+N%3BNyquist%2C+L+E%3BRoss%2C+K%3BSutton%2C+S+R%3BSchwandt%2C+C+S%3BAnonymous&rft.aulast=Rao&rft.aufirst=M&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1476.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 30, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; acidic composition; alkaline earth metals; Antarctica; chemical weathering; EETA 79001; electron probe data; Elephant Moraine Meteorites; gas-rich impact melts; GRIM glasses; impact melts; iron; Los Angeles Meteorite; magnesium; major elements; Mars; Martian meteorites; mass balance; melts; metals; meteorites; mobility; parent materials; planets; QUE 94201; Queen Alexandra Range Meteorites; regolith; shergottite; Shergotty Meteorite; SNC Meteorites; stony meteorites; sulfate ion; sulfates; sulfur; terrestrial planets; weathering; Zagami Meteorite ER - TY - JOUR T1 - A groundmass composition for EET 79001A using a novel microprobe technique for estimating bulk compositions; lithology as an impact melt? AN - 959108930; 2012-034923 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Jones, J H AU - Hanson, B Z AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2095 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - methods KW - stony meteorites KW - Martian meteorites KW - olivine group KW - Elephant Moraine Meteorites KW - melts KW - electron probe data KW - SNC Meteorites KW - meteorites KW - impact melts KW - EETA 79001 KW - pyroxene group KW - mineral composition KW - clinopyroxene KW - whole rock KW - point counts KW - cumulates KW - mixing KW - olivine KW - orthosilicates KW - framework silicates KW - heterogeneity KW - enstatite KW - chain silicates KW - plagioclase KW - matrix KW - achondrites KW - new methods KW - nesosilicates KW - shergottite KW - orthopyroxene KW - feldspar group KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959108930?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=A+groundmass+composition+for+EET+79001A+using+a+novel+microprobe+technique+for+estimating+bulk+compositions%3B+lithology+as+an+impact+melt%3F&rft.au=Jones%2C+J+H%3BHanson%2C+B+Z%3BAnonymous&rft.aulast=Jones&rft.aufirst=J&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2095.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 29, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; chain silicates; clinopyroxene; cumulates; EETA 79001; electron probe data; Elephant Moraine Meteorites; enstatite; feldspar group; framework silicates; heterogeneity; impact melts; Martian meteorites; matrix; melts; meteorites; methods; mineral composition; mixing; nesosilicates; new methods; olivine; olivine group; orthopyroxene; orthosilicates; plagioclase; point counts; pyroxene group; shergottite; silicates; SNC Meteorites; stony meteorites; whole rock ER - TY - JOUR T1 - Comparisons of mineralogy between cumulate eucrites and lunar meteorites possibly from the farside anorthositic crust AN - 959108706; 2012-034844 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Takeda, H AU - Yamaguchi, A AU - Hiroi, T AU - Nyquist, L E AU - Shih, C Y AU - Ohtake, M AU - Karouji, Y AU - Kobayashi, S AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper no. 1632 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - lunar meteorites KW - stony meteorites KW - asteroids KW - isotopes KW - igneous rocks KW - ferroan anorthosite KW - lunar highlands KW - stable isotopes KW - meteorites KW - pyroxene group KW - plutonic rocks KW - mineral composition KW - farside KW - cumulates KW - framework silicates KW - rare earths KW - chain silicates KW - Yamato Meteorites KW - plagioclase KW - magma oceans KW - Vesta Asteroid KW - Moon KW - isotope ratios KW - parent bodies KW - HED meteorites KW - Y 980433 KW - achondrites KW - anorthosite KW - Nd-144/Nd-143 KW - metals KW - lunar crust KW - petrography KW - eucrite KW - neodymium KW - reflectance KW - feldspar group KW - Y 980318 KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959108706?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Comparisons+of+mineralogy+between+cumulate+eucrites+and+lunar+meteorites+possibly+from+the+farside+anorthositic+crust&rft.au=Takeda%2C+H%3BYamaguchi%2C+A%3BHiroi%2C+T%3BNyquist%2C+L+E%3BShih%2C+C+Y%3BOhtake%2C+M%3BKarouji%2C+Y%3BKobayashi%2C+S%3BAnonymous&rft.aulast=Takeda&rft.aufirst=H&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1632.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - SuppNotes - Accessed on Jan. 18, 2012 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; anorthosite; asteroids; chain silicates; cumulates; eucrite; farside; feldspar group; ferroan anorthosite; framework silicates; HED meteorites; igneous rocks; isotope ratios; isotopes; lunar crust; lunar highlands; lunar meteorites; magma oceans; metals; meteorites; mineral composition; Moon; Nd-144/Nd-143; neodymium; parent bodies; petrography; plagioclase; plutonic rocks; pyroxene group; rare earths; reflectance; silicates; stable isotopes; stony meteorites; Vesta Asteroid; Y 980318; Y 980433; Yamato Meteorites ER - TY - JOUR T1 - Fe and Mg isotopic analyses of isotopically unusual presolar silicate grains AN - 959108442; 2012-034823 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nguyen, A N AU - Messenger, S AU - Ito, M AU - Rahman, Z AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper no. 2711 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - magnesium KW - stony meteorites KW - oxygen KW - ion probe data KW - isotopes KW - enrichment KW - mass spectra KW - Acfer 094 KW - stable isotopes KW - iron KW - meteorites KW - presolar grains KW - mixing KW - Mg-25/Mg-24 KW - spectra KW - chondrites KW - depletion KW - O-17/O-16 KW - alkaline earth metals KW - isotope ratios KW - supernovas KW - cosmochemistry KW - anomalies KW - Acfer Meteorites KW - O-18/O-16 KW - carbonaceous chondrites KW - stars KW - Mg-26/Mg-24 KW - metals KW - NanoSIMS KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959108442?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Fe+and+Mg+isotopic+analyses+of+isotopically+unusual+presolar+silicate+grains&rft.au=Nguyen%2C+A+N%3BMessenger%2C+S%3BIto%2C+M%3BRahman%2C+Z%3BAnonymous&rft.aulast=Nguyen&rft.aufirst=A&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2711.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 20 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Jan. 17, 2012 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Acfer 094; Acfer Meteorites; alkaline earth metals; anomalies; carbonaceous chondrites; chondrites; cosmochemistry; depletion; enrichment; ion probe data; iron; isotope ratios; isotopes; magnesium; mass spectra; metals; meteorites; Mg-25/Mg-24; Mg-26/Mg-24; mixing; NanoSIMS; O-17/O-16; O-18/O-16; oxygen; presolar grains; silicates; spectra; stable isotopes; stars; stony meteorites; supernovas ER - TY - JOUR T1 - Ice lens formation and frost heave at the Phoenix landing site AN - 959108377; 2012-034808 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Zent, A P AU - Sizemore, H G AU - Rempel, A W AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper no. 2543 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - soils KW - lenses KW - Mars Phoenix Lander KW - pressure KW - numerical models KW - frost heaving KW - Mars KW - landing sites KW - equations KW - depth KW - temperature KW - terrestrial planets KW - planets KW - ice KW - ground ice KW - diurnal variations KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959108377?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Ice+lens+formation+and+frost+heave+at+the+Phoenix+landing+site&rft.au=Zent%2C+A+P%3BSizemore%2C+H+G%3BRempel%2C+A+W%3BAnonymous&rft.aulast=Zent&rft.aufirst=A&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2543.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Jan. 13, 2012 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - depth; diurnal variations; equations; frost heaving; ground ice; ice; landing sites; lenses; Mars; Mars Phoenix Lander; numerical models; planets; pressure; regolith; soils; temperature; terrestrial planets ER - TY - JOUR T1 - The Moon Mineralogy Mapper (M (super 3) ) imaging spectrometer for lunar science; instrument description, calibration, on-orbit measurements, science data calibration and on-orbit validation AN - 959107176; 2012-034598 AB - The NASA Discovery Moon Mineralogy Mapper imaging spectrometer was selected to pursue a wide range of science objectives requiring measurement of composition at fine spatial scales over the full lunar surface. To pursue these objectives, a broad spectral range imaging spectrometer with high uniformity and high signal-to-noise ratio capable of measuring compositionally diagnostic spectral absorption features from a wide variety of known and possible lunar materials was required. For this purpose the Moon Mineralogy Mapper imaging spectrometer was designed and developed that measures the spectral range from 430 to 3000 nm with 10 nm spectral sampling through a 24 degree field of view with 0.7 milliradian spatial sampling. The instrument has a signal-to-noise ratio of greater than 400 for the specified equatorial reference radiance and greater than 100 for the polar reference radiance. The spectral cross-track uniformity is >90% and spectral instantaneous field-of-view uniformity is >90%. The Moon Mineralogy Mapper was launched on Chandrayaan-1 on the 22nd of October. On the 18th of November 2008 the Moon Mineralogy Mapper was turned on and collected a first light data set within 24 h. During this early checkout period and throughout the mission the spacecraft thermal environment and orbital parameters varied more than expected and placed operational and data quality constraints on the measurements. On the 29th of August 2009, spacecraft communication was lost. Over the course of the flight mission 1542 downlinked data sets were acquired that provide coverage of more than 95% of the lunar surface. An end-to-end science data calibration system was developed and all measurements have been passed through this system and delivered to the Planetary Data System (PDS.NASA.GOV). An extensive effort has been undertaken by the science team to validate the Moon Mineralogy Mapper science measurements in the context of the mission objectives. A focused spectral, radiometric, spatial, and uniformity validation effort has been pursued with selected data sets including an Earth-view data set. With this effort an initial validation of the on-orbit performance of the imaging spectrometer has been achieved, including validation of the cross-track spectral uniformity and spectral instantaneous field of view uniformity. The Moon Mineralogy Mapper is the first imaging spectrometer to measure a data set of this kind at the Moon. These calibrated science measurements are being used to address the full set of science goals and objectives for this mission. JF - Journal of Geophysical Research AU - Green, R O AU - Pieters, C M AU - Mouroulis, P AU - Eastwood, M AU - Boardman, Joseph W AU - Glavich, T AU - Isaacson, P AU - Annadurai, M AU - Besse, S AU - Barr, D AU - Buratti, B J AU - Cate, D AU - Chatterjee, A AU - Clark, R N AU - Cheek, L C AU - Combe, Jean-Philippe AU - Dhingra, D AU - Essandoh, V AU - Geier, S AU - Goswami, J N AU - Haemmerle, V AU - Head, J W AU - Hovland, L AU - Hyman, S AU - Klima, Rachel L AU - Koch, T AU - Kramer, G AU - Kumar, A S K AU - Lee, K AU - Lundeen, S AU - Malaret, Erik AU - McCord, Thomas B AU - McLaughlin, S AU - Mustard, J F AU - Nettles, J AU - Petro, Noah E AU - Plourde, K AU - Racho, C AU - Rodriquez, J AU - Runyon, C AU - Sellar, G AU - Smith, C AU - Sobel, H AU - Staid, Matthew I AU - Sunshine, J M AU - Taylor, Lawrence A AU - Thaisen, K AU - Tompkins, S AU - Tseng, H AU - Vane, G AU - Varanasi, P AU - White, M AU - Wilson, D Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E00G19 PB - American Geophysical Union, Washington, DC VL - 116 IS - E SN - 0148-0227, 0148-0227 KW - water KW - laboratory studies KW - experimental studies KW - Moon KW - Moon Mineralogy Mapper KW - signal-to-noise ratio KW - calibration KW - spectroscopy KW - instruments KW - design KW - measurement KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959107176?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=The+Moon+Mineralogy+Mapper+%28M+%28super+3%29+%29+imaging+spectrometer+for+lunar+science%3B+instrument+description%2C+calibration%2C+on-orbit+measurements%2C+science+data+calibration+and+on-orbit+validation&rft.au=Green%2C+R+O%3BPieters%2C+C+M%3BMouroulis%2C+P%3BEastwood%2C+M%3BBoardman%2C+Joseph+W%3BGlavich%2C+T%3BIsaacson%2C+P%3BAnnadurai%2C+M%3BBesse%2C+S%3BBarr%2C+D%3BBuratti%2C+B+J%3BCate%2C+D%3BChatterjee%2C+A%3BClark%2C+R+N%3BCheek%2C+L+C%3BCombe%2C+Jean-Philippe%3BDhingra%2C+D%3BEssandoh%2C+V%3BGeier%2C+S%3BGoswami%2C+J+N%3BHaemmerle%2C+V%3BHead%2C+J+W%3BHovland%2C+L%3BHyman%2C+S%3BKlima%2C+Rachel+L%3BKoch%2C+T%3BKramer%2C+G%3BKumar%2C+A+S+K%3BLee%2C+K%3BLundeen%2C+S%3BMalaret%2C+Erik%3BMcCord%2C+Thomas+B%3BMcLaughlin%2C+S%3BMustard%2C+J+F%3BNettles%2C+J%3BPetro%2C+Noah+E%3BPlourde%2C+K%3BRacho%2C+C%3BRodriquez%2C+J%3BRunyon%2C+C%3BSellar%2C+G%3BSmith%2C+C%3BSobel%2C+H%3BStaid%2C+Matthew+I%3BSunshine%2C+J+M%3BTaylor%2C+Lawrence+A%3BThaisen%2C+K%3BTompkins%2C+S%3BTseng%2C+H%3BVane%2C+G%3BVaranasi%2C+P%3BWhite%2C+M%3BWilson%2C+D&rft.aulast=Green&rft.aufirst=R&rft.date=2011-01-01&rft.volume=116&rft.issue=E&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2011JE003797 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 45 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - calibration; design; experimental studies; instruments; laboratory studies; measurement; Moon; Moon Mineralogy Mapper; signal-to-noise ratio; spectroscopy; water DO - http://dx.doi.org/10.1029/2011JE003797 ER - TY - JOUR T1 - Recovery transportation and acceptance to the curation facility of the Hayabusa re-entry capsule AN - 959104562; 2012-035133 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Abe, M AU - Fujimura, A AU - Yano, H AU - Okamoto, C AU - Okada, T AU - Yada, T AU - Ishibashi, Y AU - Shirai, K AU - Nakamura, T AU - Noguchi, T AU - Okazaki, R AU - Zolensky, M E AU - Sandford, S A AU - Ireland, T AU - Ueno, M AU - Mukai, T AU - Yoshikawa, M AU - Yamada, T AU - Kuninaka, H AU - Kawaguchi, J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1638 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - tomography KW - clean rooms KW - near-Earth objects KW - Itokawa Asteroid KW - Australasia KW - asteroids KW - Woomera Prohibited Area KW - near-Earth asteroids KW - sample return KW - landing sites KW - samples KW - curation KW - computed tomography KW - Hayabusa Mission KW - Australia KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959104562?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Recovery+transportation+and+acceptance+to+the+curation+facility+of+the+Hayabusa+re-entry+capsule&rft.au=Abe%2C+M%3BFujimura%2C+A%3BYano%2C+H%3BOkamoto%2C+C%3BOkada%2C+T%3BYada%2C+T%3BIshibashi%2C+Y%3BShirai%2C+K%3BNakamura%2C+T%3BNoguchi%2C+T%3BOkazaki%2C+R%3BZolensky%2C+M+E%3BSandford%2C+S+A%3BIreland%2C+T%3BUeno%2C+M%3BMukai%2C+T%3BYoshikawa%2C+M%3BYamada%2C+T%3BKuninaka%2C+H%3BKawaguchi%2C+J%3BAnonymous&rft.aulast=Abe&rft.aufirst=M&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1638.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 31, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - asteroids; Australasia; Australia; clean rooms; computed tomography; curation; Hayabusa Mission; Itokawa Asteroid; landing sites; near-Earth asteroids; near-Earth objects; sample return; samples; tomography; Woomera Prohibited Area ER - TY - JOUR T1 - (Ca,Mg)-carbonate and Mg-carbonate at the Phoenix landing site; evaluation of the Phoenix lander's Thermal Evolved Gas Analyzer (TEGA) data using laboratory simulations AN - 959104213; 2012-034957 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Sutter, Brad AU - Ming, D W AU - Boynton, W V AU - Niles, Paul B AU - Morris, R V AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2351 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - soils KW - experimental studies KW - Mars Phoenix Lander KW - aragonite KW - ankerite KW - magnesite KW - Viking Program KW - Mars KW - landing sites KW - simulation KW - carbon dioxide KW - calcite KW - terrestrial planets KW - dolomite KW - planets KW - laboratory studies KW - siderite KW - Thermal Evolved Gas Analyzer KW - differential scanning calorimetry KW - carbonates KW - Vastitas Borealis Formation KW - pH KW - calorimetry KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959104213?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=%28Ca%2CMg%29-carbonate+and+Mg-carbonate+at+the+Phoenix+landing+site%3B+evaluation+of+the+Phoenix+lander%27s+Thermal+Evolved+Gas+Analyzer+%28TEGA%29+data+using+laboratory+simulations&rft.au=Sutter%2C+Brad%3BMing%2C+D+W%3BBoynton%2C+W+V%3BNiles%2C+Paul+B%3BMorris%2C+R+V%3BAnonymous&rft.aulast=Sutter&rft.aufirst=Brad&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2351.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 30, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - ankerite; aragonite; calcite; calorimetry; carbon dioxide; carbonates; differential scanning calorimetry; dolomite; experimental studies; laboratory studies; landing sites; magnesite; Mars; Mars Phoenix Lander; pH; planets; siderite; simulation; soils; terrestrial planets; Thermal Evolved Gas Analyzer; Vastitas Borealis Formation; Viking Program ER - TY - JOUR T1 - Interaction of perchlorate with JSC Mars-1 during evolved gas analysis AN - 959104191; 2012-034956 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - ten Kate, I L AU - Stern, J AU - Malespin, C A AU - Glavin, D P AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1011 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - chlorinated hydrocarbons KW - methylene chloride KW - experimental studies KW - gaseous phase KW - mass spectra KW - Viking Program KW - Mars KW - perchlorate KW - gases KW - terrestrial planets KW - planets KW - organic compounds KW - JSC Mars-1 simulant KW - pyrolysis KW - evolved gas analysis KW - halogenated hydrocarbons KW - spectra KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959104191?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Interaction+of+perchlorate+with+JSC+Mars-1+during+evolved+gas+analysis&rft.au=ten+Kate%2C+I+L%3BStern%2C+J%3BMalespin%2C+C+A%3BGlavin%2C+D+P%3BAnonymous&rft.aulast=ten+Kate&rft.aufirst=I&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1011.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Nov. 30, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chlorinated hydrocarbons; evolved gas analysis; experimental studies; gaseous phase; gases; halogenated hydrocarbons; JSC Mars-1 simulant; Mars; mass spectra; methylene chloride; organic compounds; perchlorate; planets; pyrolysis; regolith; spectra; terrestrial planets; Viking Program ER - TY - JOUR T1 - Blocky regolith and rugged subsurface deposits on the Moon; correlation of dual-wavelength radar data and high-resolution images AN - 959104007; 2012-034887 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Campbell, B A AU - Hawke, B R AU - Carter, L M AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1417 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - high-resolution methods KW - imagery KW - boulders KW - Earth-based observations KW - collapse structures KW - Moon KW - clastic sediments KW - Lunar Reconnaissance Orbiter Camera KW - circular polarization ratio KW - radar methods KW - wavelength KW - volcanic features KW - sediments KW - Marius Hills KW - scarps KW - domes KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959104007?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Blocky+regolith+and+rugged+subsurface+deposits+on+the+Moon%3B+correlation+of+dual-wavelength+radar+data+and+high-resolution+images&rft.au=Campbell%2C+B+A%3BHawke%2C+B+R%3BCarter%2C+L+M%3BAnonymous&rft.aulast=Campbell&rft.aufirst=B&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1417.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed Nov. 29, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - boulders; circular polarization ratio; clastic sediments; collapse structures; domes; Earth-based observations; high-resolution methods; imagery; Lunar Reconnaissance Orbiter Camera; Marius Hills; Moon; radar methods; regolith; scarps; sediments; volcanic features; wavelength ER - TY - JOUR T1 - Microwave permittivity and permeability measurements on lunar soils AN - 959103774; 2012-034883 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Barmatz, Martin AU - Steinfeld, David AU - Begley, Shelley B AU - Winterhalter, Daniel AU - Allen, Carlton C AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1041 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - maturity KW - Moon KW - lunar highlands KW - simulation KW - maria KW - dielectric constant KW - iron KW - measurement KW - magnetic properties KW - microwave methods KW - absorption KW - dielectric properties KW - metals KW - nanophase iron KW - regolith KW - permeability KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959103774?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Microwave+permittivity+and+permeability+measurements+on+lunar+soils&rft.au=Barmatz%2C+Martin%3BSteinfeld%2C+David%3BBegley%2C+Shelley+B%3BWinterhalter%2C+Daniel%3BAllen%2C+Carlton+C%3BAnonymous&rft.aulast=Barmatz&rft.aufirst=Martin&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1041.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed Nov. 29, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - absorption; dielectric constant; dielectric properties; iron; lunar highlands; lunar soils; magnetic properties; maria; maturity; measurement; metals; microwave methods; Moon; nanophase iron; permeability; regolith; simulation ER - TY - JOUR T1 - Fluids and their effect on measurements of lunar soil particle size distribution AN - 959103753; 2012-034882 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cooper, B L AU - McKay, D S AU - Wallace, W T AU - Gonzalez, C P AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2210 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - mass spectra KW - Apollo Program KW - solution KW - size distribution KW - chemical reactions KW - isopropanol alcohol KW - alcohols KW - spectra KW - pH KW - lunar soils KW - agglutinates KW - water KW - granulometry KW - Moon KW - grain size KW - measurement KW - ICP mass spectra KW - sample preparation KW - Sample 14003 KW - organic compounds KW - Sample 10084 KW - dissolved materials KW - Apollo 11 KW - Apollo 14 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959103753?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Fluids+and+their+effect+on+measurements+of+lunar+soil+particle+size+distribution&rft.au=Cooper%2C+B+L%3BMcKay%2C+D+S%3BWallace%2C+W+T%3BGonzalez%2C+C+P%3BAnonymous&rft.aulast=Cooper&rft.aufirst=B&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2210.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 21 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed Nov. 29, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - agglutinates; alcohols; Apollo 11; Apollo 14; Apollo Program; chemical reactions; dissolved materials; grain size; granulometry; ICP mass spectra; isopropanol alcohol; lunar soils; mass spectra; measurement; Moon; organic compounds; pH; Sample 10084; Sample 14003; sample preparation; size distribution; solution; spectra; water ER - TY - JOUR T1 - The contribution of Io-raised tides to Europa's diurnally-varying surface stresses AN - 959101992; 2012-034867 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Rhoden, Alyssa Rose AU - Hurford, Terry A AU - Manga, Michael AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper no. 2241 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - icy satellites KW - obliquity of the ecliptic KW - Europa Satellite KW - orbits KW - stress KW - Jupiter KW - Io Satellite KW - Galilean satellites KW - giant planets KW - eccentricity KW - tides KW - planets KW - motions KW - resonance KW - tectonics KW - outer planets KW - diurnal variations KW - satellites KW - apocenter KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959101992?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+contribution+of+Io-raised+tides+to+Europa%27s+diurnally-varying+surface+stresses&rft.au=Rhoden%2C+Alyssa+Rose%3BHurford%2C+Terry+A%3BManga%2C+Michael%3BAnonymous&rft.aulast=Rhoden&rft.aufirst=Alyssa&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2241.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Jan. 19, 2012 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - apocenter; diurnal variations; eccentricity; Europa Satellite; Galilean satellites; giant planets; icy satellites; Io Satellite; Jupiter; motions; obliquity of the ecliptic; orbits; outer planets; planets; resonance; satellites; stress; tectonics; tides ER - TY - JOUR T1 - Eucrite impact melt NWA 5218; evidence for a large crater on Vesta AN - 959099770; 2012-035003 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Wittmann, Axel AU - Hiroi, Takahiro AU - Ross, Daniel K AU - Herrin, Jason S AU - Rumble, Douglas, III AU - Kring, David A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1984 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - Northwest Africa Meteorites KW - near-infrared spectra KW - geologic thermometry KW - stony meteorites KW - impact features KW - asteroids KW - optical spectra KW - melts KW - infrared spectra KW - electron probe data KW - meteorites KW - impact melts KW - FTIR spectra KW - pyroxene group KW - spectra KW - chemical composition KW - modal analysis KW - chain silicates KW - Vesta Asteroid KW - thermal metamorphism KW - clasts KW - metamorphism KW - achondrites KW - petrography KW - eucrite KW - NWA 5218 KW - impact craters KW - reflectance KW - shock metamorphism KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959099770?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Eucrite+impact+melt+NWA+5218%3B+evidence+for+a+large+crater+on+Vesta&rft.au=Wittmann%2C+Axel%3BHiroi%2C+Takahiro%3BRoss%2C+Daniel+K%3BHerrin%2C+Jason+S%3BRumble%2C+Douglas%2C+III%3BKring%2C+David+A%3BAnonymous&rft.aulast=Wittmann&rft.aufirst=Axel&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1984.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 18 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 15, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; asteroids; chain silicates; chemical composition; clasts; electron probe data; eucrite; FTIR spectra; geologic thermometry; impact craters; impact features; impact melts; infrared spectra; melts; metamorphism; meteorites; modal analysis; near-infrared spectra; Northwest Africa Meteorites; NWA 5218; optical spectra; petrography; pyroxene group; reflectance; shock metamorphism; silicates; spectra; stony meteorites; thermal metamorphism; Vesta Asteroid ER - TY - JOUR T1 - Carbon isotopic fractionation during formation of macromolecular organic grain coatings via FTT reactions AN - 959099652; 2012-034999 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nuth, Joseph A AU - Johnson, N M AU - Elsila-Cook, J AU - Kopstein, M AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1167 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - isotope fractionation KW - Fischer-Tropsch model KW - experimental studies KW - isotopes KW - isotope ratios KW - C-13/C-12 KW - aliphatic hydrocarbons KW - alkanes KW - stable isotopes KW - temperature KW - solar nebula KW - carbon monoxide KW - organic compounds KW - catalysis KW - chemical reactions KW - hydrogen KW - carbon KW - hydrocarbons KW - synthesis KW - aromatic hydrocarbons KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959099652?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Carbon+isotopic+fractionation+during+formation+of+macromolecular+organic+grain+coatings+via+FTT+reactions&rft.au=Nuth%2C+Joseph+A%3BJohnson%2C+N+M%3BElsila-Cook%2C+J%3BKopstein%2C+M%3BAnonymous&rft.aulast=Nuth&rft.aufirst=Joseph&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1167.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 18 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 15, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; aromatic hydrocarbons; C-13/C-12; carbon; carbon monoxide; catalysis; chemical reactions; experimental studies; Fischer-Tropsch model; hydrocarbons; hydrogen; isotope fractionation; isotope ratios; isotopes; organic compounds; solar nebula; stable isotopes; synthesis; temperature ER - TY - JOUR T1 - Phyllosilicate deposits in Shalbatana Vallis AN - 959099328; 2012-034939 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Wintzer, Anne E AU - Allen, Carlton C AU - Oehler, Dorothy Z AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1557 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - prehnite KW - Orson Welles Crater KW - CRISM KW - Shalbatana Vallis KW - Mars Reconnaissance Orbiter KW - Mars KW - kaolinite KW - nontronite KW - Context Camera KW - Compact Reconnaissance Imagine Spectroemter for Mars KW - High Resolution Imaging Science Experiment KW - clay minerals KW - terrestrial planets KW - planets KW - mineral composition KW - sheet silicates KW - HiRISE KW - montmorillonite KW - chain silicates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959099328?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Phyllosilicate+deposits+in+Shalbatana+Vallis&rft.au=Wintzer%2C+Anne+E%3BAllen%2C+Carlton+C%3BOehler%2C+Dorothy+Z%3BAnonymous&rft.aulast=Wintzer&rft.aufirst=Anne&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1557.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. incl. sketch map N1 - SuppNotes - Accessed on Nov. 30, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chain silicates; clay minerals; Compact Reconnaissance Imagine Spectroemter for Mars; Context Camera; CRISM; High Resolution Imaging Science Experiment; HiRISE; kaolinite; Mars; Mars Reconnaissance Orbiter; mineral composition; montmorillonite; nontronite; Orson Welles Crater; planets; prehnite; Shalbatana Vallis; sheet silicates; silicates; terrestrial planets ER - TY - JOUR T1 - Non-linear unmixing of CRISM spectra over the Mawrth Vallis region; implications for level of alteration AN - 959099269; 2012-034937 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Farrand, W H AU - Glotch, T D AU - Rice, J W AU - Hurowitz, J A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1952 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - near-infrared spectra KW - alteration KW - augite KW - data processing KW - Mars KW - pyroxene group KW - mineral composition KW - clinopyroxene KW - Mawrth Vallis KW - silica KW - aluminum KW - framework silicates KW - spectra KW - chain silicates KW - plagioclase KW - CRISM KW - smectite KW - kaolinite KW - clay minerals KW - terrestrial planets KW - planets KW - metals KW - sheet silicates KW - feldspar group KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959099269?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Non-linear+unmixing+of+CRISM+spectra+over+the+Mawrth+Vallis+region%3B+implications+for+level+of+alteration&rft.au=Farrand%2C+W+H%3BGlotch%2C+T+D%3BRice%2C+J+W%3BHurowitz%2C+J+A%3BAnonymous&rft.aulast=Farrand&rft.aufirst=W&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1952.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Accessed on Nov. 30, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alteration; aluminum; augite; chain silicates; clay minerals; clinopyroxene; CRISM; data processing; feldspar group; framework silicates; kaolinite; Mars; Mawrth Vallis; metals; mineral composition; near-infrared spectra; plagioclase; planets; pyroxene group; sheet silicates; silica; silicates; smectite; spectra; terrestrial planets ER - TY - JOUR T1 - Primary volatiles during the 2010 apparition of Comet 103P/Hartley-2 as revealed at infrared wavelengths; production rates and spatial profiles AN - 959099141; 2012-033028 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Mumma, Michael J AU - DiSanti, M A AU - Bonev, B P AU - Paganini, L AU - Villanueva, G L AU - Gibb, E L AU - Keane, J AU - Blake, G A AU - Ellis, R S AU - Magee-Sauer, K AU - Combi, M AU - Boehnhardt, H AU - Lippi, M AU - Meech, K AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2428 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Earth-based observations KW - telescope methods KW - aliphatic hydrocarbons KW - rates KW - jets KW - ethane KW - alkanes KW - temperature KW - methanol KW - infrared spectra KW - cometary coma KW - volatiles KW - organic compounds KW - Hartley 2 Comet KW - comets KW - rotation KW - hydrocarbons KW - alcohols KW - hydrogen cyanide KW - spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959099141?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Primary+volatiles+during+the+2010+apparition+of+Comet+103P%2FHartley-2+as+revealed+at+infrared+wavelengths%3B+production+rates+and+spatial+profiles&rft.au=Mumma%2C+Michael+J%3BDiSanti%2C+M+A%3BBonev%2C+B+P%3BPaganini%2C+L%3BVillanueva%2C+G+L%3BGibb%2C+E+L%3BKeane%2C+J%3BBlake%2C+G+A%3BEllis%2C+R+S%3BMagee-Sauer%2C+K%3BCombi%2C+M%3BBoehnhardt%2C+H%3BLippi%2C+M%3BMeech%2C+K%3BAnonymous&rft.aulast=Mumma&rft.aufirst=Michael&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2428.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - TX N1 - SuppNotes - Accessed on Dec. 8, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alcohols; aliphatic hydrocarbons; alkanes; cometary coma; comets; Earth-based observations; ethane; Hartley 2 Comet; hydrocarbons; hydrogen cyanide; infrared spectra; jets; methanol; organic compounds; rates; rotation; spectra; telescope methods; temperature; volatiles ER - TY - JOUR T1 - Higher magnification imaging of the polished aluminum collector returned from the Genesis Mission AN - 959099123; 2012-035110 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Rodriguez, Melissa C AU - Burkett, Patti J AU - Allton, J H AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1968 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - imagery KW - Genesis Mission KW - microcraters KW - impact features KW - hypervelocity impacts KW - craters KW - impact craters KW - polished aluminum collector KW - impacts KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959099123?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Higher+magnification+imaging+of+the+polished+aluminum+collector+returned+from+the+Genesis+Mission&rft.au=Rodriguez%2C+Melissa+C%3BBurkett%2C+Patti+J%3BAllton%2C+J+H%3BAnonymous&rft.aulast=Rodriguez&rft.aufirst=Melissa&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1968.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 21, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - craters; Genesis Mission; hypervelocity impacts; imagery; impact craters; impact features; impacts; microcraters; polished aluminum collector ER - TY - JOUR T1 - Comet 103P/Hartley-2; rotational and spin temperatures of H (sub 2) O and evolution of water production rate during the 2010 apparition AN - 959099117; 2012-033027 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bonev, B P AU - Villanueva, G L AU - Keane, J AU - DiSanti, M A AU - Gibb, E L AU - Paganini, L AU - Blake, G A AU - Ellis, R S AU - Magee-Sauer, K AU - Combi, M AU - Boehnhardt, H AU - Lippi, M AU - Meech, K AU - Mumma, M J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2419 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - water KW - near-infrared spectra KW - volatiles KW - Hartley 2 Comet KW - comets KW - telescope methods KW - rotation KW - rates KW - spectra KW - temperature KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959099117?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Comet+103P%2FHartley-2%3B+rotational+and+spin+temperatures+of+H+%28sub+2%29+O+and+evolution+of+water+production+rate+during+the+2010+apparition&rft.au=Bonev%2C+B+P%3BVillanueva%2C+G+L%3BKeane%2C+J%3BDiSanti%2C+M+A%3BGibb%2C+E+L%3BPaganini%2C+L%3BBlake%2C+G+A%3BEllis%2C+R+S%3BMagee-Sauer%2C+K%3BCombi%2C+M%3BBoehnhardt%2C+H%3BLippi%2C+M%3BMeech%2C+K%3BMumma%2C+M+J%3BAnonymous&rft.aulast=Bonev&rft.aufirst=B&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2419.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - TX N1 - SuppNotes - Accessed on Dec. 8, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - comets; Hartley 2 Comet; near-infrared spectra; rates; rotation; spectra; telescope methods; temperature; volatiles; water ER - TY - JOUR T1 - The volatile chemistry of 103P/Hartley 2 determined from ground-based infrared measurements during the EPOXI closest approach AN - 959099091; 2012-033026 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Dello Russo, Neil AU - Vervack, R J, Jr AU - Weaver, H A AU - Lisse, C M AU - Kawakita, H AU - Kobayashi, H AU - Cochran, A L AU - Harris, W M AU - McKay, A J AU - DiSanti, M A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1854 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - acetylene KW - aliphatic hydrocarbons KW - ethane KW - infrared spectra KW - spatial distribution KW - Hartley 2 Comet KW - alkynes KW - alcohols KW - hydrogen cyanide KW - spectra KW - chemical composition KW - ammonia compound KW - water KW - cometary nucleus KW - Earth-based observations KW - telescope methods KW - formaldehyde KW - alkanes KW - methanol KW - gases KW - volatiles KW - organic compounds KW - comets KW - hydrocarbons KW - cometary dust KW - EPOXI Mission KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959099091?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+volatile+chemistry+of+103P%2FHartley+2+determined+from+ground-based+infrared+measurements+during+the+EPOXI+closest+approach&rft.au=Dello+Russo%2C+Neil%3BVervack%2C+R+J%2C+Jr%3BWeaver%2C+H+A%3BLisse%2C+C+M%3BKawakita%2C+H%3BKobayashi%2C+H%3BCochran%2C+A+L%3BHarris%2C+W+M%3BMcKay%2C+A+J%3BDiSanti%2C+M+A%3BAnonymous&rft.aulast=Dello+Russo&rft.aufirst=Neil&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1854.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 8, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - acetylene; alcohols; aliphatic hydrocarbons; alkanes; alkynes; ammonia compound; chemical composition; cometary dust; cometary nucleus; comets; Earth-based observations; EPOXI Mission; ethane; formaldehyde; gases; Hartley 2 Comet; hydrocarbons; hydrogen cyanide; infrared spectra; methanol; organic compounds; spatial distribution; spectra; telescope methods; volatiles; water ER - TY - JOUR T1 - Diagenesis of clay minerals on Mars and implications for the Mars Science Laboratory Rover AN - 959098730; 2012-033005 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Milliken, Ralph E AU - Bristow, T AU - Bish, D L AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2230 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - numerical models KW - CRISM KW - smectite KW - Mars KW - landing sites KW - simulation KW - metasomatism KW - Gale Crater KW - clay minerals KW - terrestrial planets KW - chlorite KW - planets KW - laboratory studies KW - Mawrth Vallis KW - diagenesis KW - Mars Science Laboratory KW - sheet silicates KW - chloritization KW - chlorite group KW - reflectance KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959098730?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Diagenesis+of+clay+minerals+on+Mars+and+implications+for+the+Mars+Science+Laboratory+Rover&rft.au=Milliken%2C+Ralph+E%3BBristow%2C+T%3BBish%2C+D+L%3BAnonymous&rft.aulast=Milliken&rft.aufirst=Ralph&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2230.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 7, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chlorite; chlorite group; chloritization; clay minerals; CRISM; diagenesis; Gale Crater; laboratory studies; landing sites; Mars; Mars Science Laboratory; Mawrth Vallis; metasomatism; numerical models; planets; reflectance; sheet silicates; silicates; simulation; smectite; terrestrial planets ER - TY - JOUR T1 - Experimental results investigating impact velocity effects on crater growth and the transient depth-to-diameter ratio AN - 959098578; 2012-032989 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Barnouin, O S AU - Ernst, C M AU - Heinick, J T AU - Sugita, S AU - Cintala, M J AU - Crawford, D A AU - Matsui, T AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2258 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - scale factor KW - cratering KW - experimental studies KW - impact features KW - impacts KW - depth KW - size KW - morphology KW - transient phenomena KW - hypervelocity impacts KW - velocity KW - dimensions KW - depth-to-diameter ratio KW - impact craters KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959098578?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Experimental+results+investigating+impact+velocity+effects+on+crater+growth+and+the+transient+depth-to-diameter+ratio&rft.au=Barnouin%2C+O+S%3BErnst%2C+C+M%3BHeinick%2C+J+T%3BSugita%2C+S%3BCintala%2C+M+J%3BCrawford%2C+D+A%3BMatsui%2C+T%3BAnonymous&rft.aulast=Barnouin&rft.aufirst=O&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2258.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 7, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - cratering; depth; depth-to-diameter ratio; dimensions; experimental studies; hypervelocity impacts; impact craters; impact features; impacts; morphology; scale factor; size; transient phenomena; velocity ER - TY - JOUR T1 - Recognizing the effects of terrestrial contamination on D/H ratios in shergottite phosphates AN - 959098448; 2012-034933 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Ross, D K AU - Ito, M AU - Hervig, R AU - Rao, M N AU - Nyquist, L E AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1920 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - terrestrial environment KW - stony meteorites KW - ion probe data KW - isotopes KW - Martian meteorites KW - mass spectra KW - mantle KW - Los Angeles Meteorite KW - Mars KW - stable isotopes KW - electron probe data KW - SNC Meteorites KW - meteorites KW - whitlockite KW - spectra KW - isotope ratios KW - atmosphere KW - phosphates KW - QUE 94201 KW - achondrites KW - terrestrial planets KW - planets KW - Antarctica KW - shergottite KW - D/H KW - chlorapatite KW - hydrogen KW - Queen Alexandra Range Meteorites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959098448?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Recognizing+the+effects+of+terrestrial+contamination+on+D%2FH+ratios+in+shergottite+phosphates&rft.au=Ross%2C+D+K%3BIto%2C+M%3BHervig%2C+R%3BRao%2C+M+N%3BNyquist%2C+L+E%3BAnonymous&rft.aulast=Ross&rft.aufirst=D&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1920.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - 2 tables N1 - SuppNotes - Accessed on Nov. 30, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; Antarctica; atmosphere; chlorapatite; D/H; electron probe data; hydrogen; ion probe data; isotope ratios; isotopes; Los Angeles Meteorite; mantle; Mars; Martian meteorites; mass spectra; meteorites; phosphates; planets; QUE 94201; Queen Alexandra Range Meteorites; shergottite; SNC Meteorites; spectra; stable isotopes; stony meteorites; terrestrial environment; terrestrial planets; whitlockite ER - TY - JOUR T1 - Results from the Lunar Orbiter Laser Altimeter (LOLA); global, high-resolution topographic mapping of the Moon AN - 959098377; 2012-034908 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Smith, David E AU - Zuber, Maria T AU - Neumann, Gregory A AU - Mazarico, Erwan AU - Head, James W, III AU - Torrence, Mark H AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2350 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Lunar Orbiter Laser Altimeter KW - surface properties KW - high-resolution methods KW - bidirectional reflectance KW - laser methods KW - Moon KW - Lunar Reconnaissance Orbiter KW - orbits KW - global KW - roughness KW - mapping KW - altimetry KW - selenodesy KW - lunar highlands KW - maria KW - photometry KW - topography KW - orbital observations KW - reflectance KW - accuracy KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959098377?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Results+from+the+Lunar+Orbiter+Laser+Altimeter+%28LOLA%29%3B+global%2C+high-resolution+topographic+mapping+of+the+Moon&rft.au=Smith%2C+David+E%3BZuber%2C+Maria+T%3BNeumann%2C+Gregory+A%3BMazarico%2C+Erwan%3BHead%2C+James+W%2C+III%3BTorrence%2C+Mark+H%3BAnonymous&rft.aulast=Smith&rft.aufirst=David&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2350.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 29, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - accuracy; altimetry; bidirectional reflectance; global; high-resolution methods; laser methods; lunar highlands; Lunar Orbiter Laser Altimeter; Lunar Reconnaissance Orbiter; mapping; maria; Moon; orbital observations; orbits; photometry; reflectance; roughness; selenodesy; surface properties; topography ER - TY - JOUR T1 - Full-mission selenolocation progress for the Moon Mineralogy Mapper on Chandrayaan-1 AN - 959098193; 2012-034902 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Boardman, Joseph W AU - Pieters, C M AU - Green, R o AU - Lundeen, S R AU - Varanasi, P AU - Nettles, J AU - Petro, N AU - Isaacson, P AU - Besse, S AU - Taylor, L A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2012 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Lunar Orbiter Laser Altimeter KW - imagery KW - Moon KW - statistical analysis KW - data processing KW - selenolocation KW - Chandrayaan-1 Mission KW - bootstrapping KW - geometry KW - automated analysis KW - topography KW - Moon Mineralogy Mapper KW - LOLA KW - reflectance KW - image analysis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959098193?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Full-mission+selenolocation+progress+for+the+Moon+Mineralogy+Mapper+on+Chandrayaan-1&rft.au=Boardman%2C+Joseph+W%3BPieters%2C+C+M%3BGreen%2C+R+o%3BLundeen%2C+S+R%3BVaranasi%2C+P%3BNettles%2C+J%3BPetro%2C+N%3BIsaacson%2C+P%3BBesse%2C+S%3BTaylor%2C+L+A%3BAnonymous&rft.aulast=Boardman&rft.aufirst=Joseph&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2012.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed Nov. 29, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - automated analysis; bootstrapping; Chandrayaan-1 Mission; data processing; geometry; image analysis; imagery; LOLA; Lunar Orbiter Laser Altimeter; Moon; Moon Mineralogy Mapper; reflectance; selenolocation; statistical analysis; topography ER - TY - JOUR T1 - Processing of Antarctic meteorites at NASA/Johnson Space Center AN - 959098122; 2012-034919 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Satterwhite, C E AU - McBride, K M AU - Harrington, R S AU - Righter, K AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2632 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Johnson Space Center KW - government agencies KW - thin sections KW - research KW - Meteorite Processing Laboratory KW - meteorites KW - curation KW - Antarctica KW - sampling KW - NASA KW - classification KW - Meteorite Working Group KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959098122?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Processing+of+Antarctic+meteorites+at+NASA%2FJohnson+Space+Center&rft.au=Satterwhite%2C+C+E%3BMcBride%2C+K+M%3BHarrington%2C+R+S%3BRighter%2C+K%3BAnonymous&rft.aulast=Satterwhite&rft.aufirst=C&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2632.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 29, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Antarctica; classification; curation; government agencies; Johnson Space Center; Meteorite Processing Laboratory; Meteorite Working Group; meteorites; NASA; research; sampling; thin sections ER - TY - JOUR T1 - Scientific characterization of lunar regions of interest AN - 959098053; 2012-034917 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Mest, S C AU - Bleacher, J E AU - Petro, N E AU - Yingst, R A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2508 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - polar regions KW - Moon KW - Lunar Reconnaissance Orbiter KW - Mare Orientale KW - characterization KW - mapping KW - Apollo Program KW - regions of interest KW - landing sites KW - Chandrayaan-1 Mission KW - exploration KW - morphology KW - spatial distribution KW - objectives KW - Aristarchus KW - Clementine Program KW - Apollo 15 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959098053?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Scientific+characterization+of+lunar+regions+of+interest&rft.au=Mest%2C+S+C%3BBleacher%2C+J+E%3BPetro%2C+N+E%3BYingst%2C+R+A%3BAnonymous&rft.aulast=Mest&rft.aufirst=S&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2508.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Nov. 29, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Apollo 15; Apollo Program; Aristarchus; Chandrayaan-1 Mission; characterization; Clementine Program; exploration; landing sites; Lunar Reconnaissance Orbiter; mapping; Mare Orientale; Moon; morphology; objectives; polar regions; regions of interest; spatial distribution ER - TY - JOUR T1 - Molybdenum valence in basaltic silicate melts; effects of temperature and pressure AN - 959097976; 2012-034841 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Danielson, L R AU - Righter, K AU - Newville, M AU - Sutton, S AU - Choi, Y AU - Pando, K AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper no. 2609 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - segregation KW - nuggets KW - volcanic rocks KW - oxygen KW - igneous rocks KW - melts KW - fugacity KW - temperature KW - XANES spectra KW - partitioning KW - molybdenum KW - valency KW - spectra KW - basaltic composition KW - experimental studies KW - pressure KW - silicate melts KW - high pressure KW - X-ray spectra KW - metals KW - magmas KW - core KW - ankaramite KW - high temperature KW - basanite KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959097976?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Molybdenum+valence+in+basaltic+silicate+melts%3B+effects+of+temperature+and+pressure&rft.au=Danielson%2C+L+R%3BRighter%2C+K%3BNewville%2C+M%3BSutton%2C+S%3BChoi%2C+Y%3BPando%2C+K%3BAnonymous&rft.aulast=Danielson&rft.aufirst=L&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2609.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Jan. 17, 2012 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - ankaramite; basaltic composition; basanite; core; experimental studies; fugacity; high pressure; high temperature; igneous rocks; magmas; melts; metals; molybdenum; nuggets; oxygen; partitioning; pressure; segregation; silicate melts; spectra; temperature; valency; volcanic rocks; X-ray spectra; XANES spectra ER - TY - JOUR T1 - MER Spirit Rover localization; comparison of ground image- and orbital image-based methods and science applications AN - 959097824; 2012-034574 AB - During 6 years of continuous operations on the Martian surface, the Mars Exploration Rover (MER) Spirit has covered a traverse of approximately 7 km from the landing point to its current position at "Troy" near Home Plate. Localization of Spirit (and Opportunity) has been performed using two different methods: one that employs an incremental bundle adjustment (IBA) using rover imagery, and one that compares image features common to both a rover orthoimage and an orbital orthoimage. The IBA method continuously yields the desired 3-D rover positions at a very high level of accuracy and provides a simultaneous solution for high-quality topographic mapping of neighborhoods surrounding the rover. On the other hand, high-resolution orbital imagery can verify rover positions wherever the rover track is visible. Rapid rover localization on the orbital orthoimage is often achieved by comparing a rover orthoimage to the orbital orthoimage. In this paper, we present research results from a systematic comparison of these two localization methods over the entire length of the Spirit traverse. Two orbital orthoimages were generated from High Resolution Imaging Science Experiment (HiRISE) imagery. Integration of Mars Orbiter Laser Altimeter (MOLA) data into the HiRISE digital elevation model (DEM) and orthoimage generation was performed and proved to be effective in reducing large inconsistencies between MOLA and HiRISE data. This study found an overall difference of 1.5 percent of the traversed distance between the two sets of traverse positions derived using the two different localization methods. After a geometric transformation from one traverse to the other, the remaining inconsistency then represents the local differences between them and can be reduced to a level of less than 0.15 percent. Discussions of error sources and the strength and weakness of the methods are given. Scientific applications of the localization data are also briefly introduced. JF - Journal of Geophysical Research AU - Li, Rongxing AU - He, Shaojun AU - Chen, Yunhang AU - Tang, Min AU - Tang, Pingbo AU - Di, Kaichang AU - Matthies, Larry AU - Arvidson, Raymond E AU - Squyres, Steven W AU - Crumpler, Larry S AU - Parker, Timothy J AU - Sims, Michael Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E00F16 PB - American Geophysical Union, Washington, DC VL - 116 IS - E SN - 0148-0227, 0148-0227 KW - terrestrial planets KW - soils KW - Mars Exploration Rover KW - planets KW - imagery KW - Spirit Rover KW - surface features KW - Mars KW - digital terrain models KW - image analysis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959097824?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=MER+Spirit+Rover+localization%3B+comparison+of+ground+image-+and+orbital+image-based+methods+and+science+applications&rft.au=Li%2C+Rongxing%3BHe%2C+Shaojun%3BChen%2C+Yunhang%3BTang%2C+Min%3BTang%2C+Pingbo%3BDi%2C+Kaichang%3BMatthies%2C+Larry%3BArvidson%2C+Raymond+E%3BSquyres%2C+Steven+W%3BCrumpler%2C+Larry+S%3BParker%2C+Timothy+J%3BSims%2C+Michael&rft.aulast=Li&rft.aufirst=Rongxing&rft.date=2011-01-01&rft.volume=116&rft.issue=E&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JE003773 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 30 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - digital terrain models; image analysis; imagery; Mars; Mars Exploration Rover; planets; soils; Spirit Rover; surface features; terrestrial planets DO - http://dx.doi.org/10.1029/2010JE003773 ER - TY - JOUR T1 - Opportunity Mars Rover mission; overview and selected results from Purgatory Ripple to traverses to Endeavour Crater AN - 959097798; 2012-034573 AB - Opportunity has been traversing the Meridiani plains since 25 January 2004 (sol 1), acquiring numerous observations of the atmosphere, soils, and rocks. This paper provides an overview of key discoveries between sols 511 and 2300, complementing earlier papers covering results from the initial phases of the mission. Key new results include (1) atmospheric argon measurements that demonstrate the importance of atmospheric transport to and from the winter carbon dioxide polar ice caps; (2) observations showing that aeolian ripples covering the plains were generated by easterly winds during an epoch with enhanced Hadley cell circulation; (3) the discovery and characterization of cobbles and boulders that include iron and stony-iron meteorites and Martian impact ejecta; (4) measurements of wall rock strata within Erebus and Victoria craters that provide compelling evidence of formation by aeolian sand deposition, with local reworking within ephemeral lakes; (5) determination that the stratigraphy exposed in the walls of Victoria and Endurance craters show an enrichment of chlorine and depletion of magnesium and sulfur with increasing depth. This result implies that regional-scale aqueous alteration took place before formation of these craters. Most recently, Opportunity has been traversing toward the ancient Endeavour crater. Orbital data show that clay minerals are exposed on its rim. Hydrated sulfate minerals are exposed in plains rocks adjacent to the rim, unlike the surfaces of plains outcrops observed thus far by Opportunity. With continued mechanical health, Opportunity will reach terrains on and around Endeavour's rim that will be markedly different from anything examined to date. JF - Journal of Geophysical Research AU - Arvidson, Raymond E AU - Ashley, J W AU - Bell, James F, III AU - Chojnacki, M AU - Cohen, J AU - Economou, T E AU - Farrand, W H AU - Fergason, R AU - Fleischer, I AU - Geissler, P AU - Gellert, R AU - Golombek, M P AU - Grotzinger, J P AU - Guinness, E A AU - Haberle, R M AU - Herkenhoff, K E AU - Herman, J A AU - Iagnemma, K D AU - Jolliff, B L AU - Johnson, J R AU - Klingelhoefer, G AU - Knoll, A H AU - Knudson, A T AU - Li, R AU - McLennan, S M AU - Mittlefehldt, D W AU - Morris, R V AU - Parker, Timothy J AU - Rice, Melissa S AU - Schroeder, C AU - Soderblom, L A AU - Squyres, S W AU - Sullivan, R J AU - Wolff, M J Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E00F15 PB - American Geophysical Union, Washington, DC VL - 116 IS - E SN - 0148-0227, 0148-0227 KW - soils KW - impact features KW - Opportunity Rover KW - atmosphere KW - Mars KW - carbon dioxide KW - terrestrial planets KW - Mars Exploration Rover KW - planets KW - Purgatory Ripple KW - mineral composition KW - surface features KW - chemical composition KW - Endeavour Crater KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959097798?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Opportunity+Mars+Rover+mission%3B+overview+and+selected+results+from+Purgatory+Ripple+to+traverses+to+Endeavour+Crater&rft.au=Arvidson%2C+Raymond+E%3BAshley%2C+J+W%3BBell%2C+James+F%2C+III%3BChojnacki%2C+M%3BCohen%2C+J%3BEconomou%2C+T+E%3BFarrand%2C+W+H%3BFergason%2C+R%3BFleischer%2C+I%3BGeissler%2C+P%3BGellert%2C+R%3BGolombek%2C+M+P%3BGrotzinger%2C+J+P%3BGuinness%2C+E+A%3BHaberle%2C+R+M%3BHerkenhoff%2C+K+E%3BHerman%2C+J+A%3BIagnemma%2C+K+D%3BJolliff%2C+B+L%3BJohnson%2C+J+R%3BKlingelhoefer%2C+G%3BKnoll%2C+A+H%3BKnudson%2C+A+T%3BLi%2C+R%3BMcLennan%2C+S+M%3BMittlefehldt%2C+D+W%3BMorris%2C+R+V%3BParker%2C+Timothy+J%3BRice%2C+Melissa+S%3BSchroeder%2C+C%3BSoderblom%2C+L+A%3BSquyres%2C+S+W%3BSullivan%2C+R+J%3BWolff%2C+M+J&rft.aulast=Arvidson&rft.aufirst=Raymond&rft.date=2011-01-01&rft.volume=116&rft.issue=E&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JE003746 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 30 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables, sketch map N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; carbon dioxide; chemical composition; Endeavour Crater; impact features; Mars; Mars Exploration Rover; mineral composition; Opportunity Rover; planets; Purgatory Ripple; soils; surface features; terrestrial planets DO - http://dx.doi.org/10.1029/2010JE003746 ER - TY - JOUR T1 - Goldschmidt Crater and the Moon's north polar region; results from the Moon Mineralogy Mapper (M (super 3) ) AN - 959097767; 2012-034572 AB - Soils within the impact crater Goldschmidt have been identified as spectrally distinct from the local highland material. High spatial and spectral resolution data from the Moon Mineralogy Mapper (M (super 3) ) on the Chandrayaan-1 orbiter are used to examine the character of Goldschmidt crater in detail. Spectral parameters applied to a north polar mosaic of M (super 3) data are used to discern large-scale compositional trends at the northern high latitudes, and spectra from three widely separated regions are compared to spectra from Goldschmidt. The results highlight the compositional diversity of the lunar nearside, in particular, where feldspathic soils with a low-Ca pyroxene component are pervasive, but exclusively feldspathic regions and small areas of basaltic composition are also observed. Additionally, we find that the relative strengths of the diagnostic OH/H (sub 2) O absorption feature near 3000 nm are correlated with the mineralogy of the host material. On both global and local scales, the strongest hydrous absorptions occur on the more feldspathic surfaces. Thus, M (super 3) data suggest that while the feldspathic soils within Goldschmidt crater are enhanced in OH/H (sub 2) O compared to the relatively mafic nearside polar highlands, their hydration signatures are similar to those observed in the feldspathic highlands on the farside. JF - Journal of Geophysical Research AU - Cheek, L C AU - Pieters, C M AU - Boardman, Joseph W AU - Clark, R N AU - Combe, Jean-Philippe AU - Head, J W AU - Isaacson, P J AU - McCord, Thomas B AU - Moriarty, D AU - Nettles, Jeffrey W AU - Petro, Noah E AU - Sunshine, J M AU - Taylor, L A Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E00G02 PB - American Geophysical Union, Washington, DC VL - 116 IS - E SN - 0148-0227, 0148-0227 KW - water KW - soils KW - polar regions KW - mineral composition KW - impact features KW - craters KW - Moon KW - Moon Mineralogy Mapper KW - surface features KW - Goldschmidt Crater KW - chemical composition KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959097767?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Goldschmidt+Crater+and+the+Moon%27s+north+polar+region%3B+results+from+the+Moon+Mineralogy+Mapper+%28M+%28super+3%29+%29&rft.au=Cheek%2C+L+C%3BPieters%2C+C+M%3BBoardman%2C+Joseph+W%3BClark%2C+R+N%3BCombe%2C+Jean-Philippe%3BHead%2C+J+W%3BIsaacson%2C+P+J%3BMcCord%2C+Thomas+B%3BMoriarty%2C+D%3BNettles%2C+Jeffrey+W%3BPetro%2C+Noah+E%3BSunshine%2C+J+M%3BTaylor%2C+L+A&rft.aulast=Cheek&rft.aufirst=L&rft.date=2011-01-01&rft.volume=116&rft.issue=E&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JE003702 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 22 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - chemical composition; craters; Goldschmidt Crater; impact features; mineral composition; Moon; Moon Mineralogy Mapper; polar regions; soils; surface features; water DO - http://dx.doi.org/10.1029/2010JE003702 ER - TY - JOUR T1 - Relationship between LRO LEND neutron flux and lunar impact crater ages AN - 959097495; 2012-035025 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Garvin, James B AU - Mitrofanov, I AU - Malakhov, A AU - Frawley, J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2538 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - impact features KW - Moon KW - Lunar Reconnaissance Orbiter KW - statistical analysis KW - Lunar Exploration Neutron Detector KW - calibration KW - lunar craters KW - geometry KW - neutrons KW - neutron probe data KW - hydrogen KW - age KW - impact craters KW - regolith KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959097495?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Relationship+between+LRO+LEND+neutron+flux+and+lunar+impact+crater+ages&rft.au=Garvin%2C+James+B%3BMitrofanov%2C+I%3BMalakhov%2C+A%3BFrawley%2C+J%3BAnonymous&rft.aulast=Garvin&rft.aufirst=James&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2538.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Sept. 16, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - age; calibration; geometry; hydrogen; impact craters; impact features; instruments; lunar craters; Lunar Exploration Neutron Detector; Lunar Reconnaissance Orbiter; Moon; neutron probe data; neutrons; regolith; statistical analysis ER - TY - JOUR T1 - The great Archean bombardment, or the late late heavy bombardment AN - 959097473; 2012-035024 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bottke, W F AU - Vokrouhlicky, D AU - Minton, D AU - Nesvorny, D AU - Morbidelli, A AU - Brasser, R AU - Simonson, B AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2591 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - impact features KW - asteroids KW - orbits KW - Vredefort Dome KW - late heavy bombardment KW - Mars KW - E-belt asteroids KW - Hungaria Asteroids KW - velocity KW - probability KW - Archean KW - South Africa KW - Free State South Africa KW - Earth KW - Sudbury Basin KW - Precambrian KW - Moon KW - statistical analysis KW - impacts KW - Imbrian KW - Ontario KW - terrestrial planets KW - models KW - planets KW - Canada KW - Southern Africa KW - Africa KW - impact craters KW - Eastern Canada KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959097473?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+great+Archean+bombardment%2C+or+the+late+late+heavy+bombardment&rft.au=Bottke%2C+W+F%3BVokrouhlicky%2C+D%3BMinton%2C+D%3BNesvorny%2C+D%3BMorbidelli%2C+A%3BBrasser%2C+R%3BSimonson%2C+B%3BAnonymous&rft.aulast=Bottke&rft.aufirst=W&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2591.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 20 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 16, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Africa; Archean; asteroids; Canada; E-belt asteroids; Earth; Eastern Canada; Free State South Africa; Hungaria Asteroids; Imbrian; impact craters; impact features; impacts; late heavy bombardment; Mars; models; Moon; Ontario; orbits; planets; Precambrian; probability; South Africa; Southern Africa; statistical analysis; Sudbury Basin; terrestrial planets; velocity; Vredefort Dome ER - TY - JOUR T1 - Dating melt rock 63545 by Rb-Sr and Sm-Nd; age of Imbrium; SPA dress rehearsal AN - 959097379; 2012-035020 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nyquist, Laurence E AU - Shih, C Y AU - Reese, Y D AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1868 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - volcanic rocks KW - igneous rocks KW - Apollo Program KW - melts KW - Rb/Sr KW - impact melts KW - melting KW - dates KW - aluminum KW - basalts KW - absolute age KW - framework silicates KW - rare earths KW - Sample 63545 KW - plagioclase KW - poikilitic texture KW - Moon KW - textures KW - isochrons KW - ophitic texture KW - South Pole-Aitken Basin KW - KREEP KW - Mare Imbrium KW - Sm/Nd KW - metals KW - feldspar group KW - Apollo 16 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959097379?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Dating+melt+rock+63545+by+Rb-Sr+and+Sm-Nd%3B+age+of+Imbrium%3B+SPA+dress+rehearsal&rft.au=Nyquist%2C+Laurence+E%3BShih%2C+C+Y%3BReese%2C+Y+D%3BAnonymous&rft.aulast=Nyquist&rft.aufirst=Laurence&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1868.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 16 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 16, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - absolute age; aluminum; Apollo 16; Apollo Program; basalts; dates; feldspar group; framework silicates; igneous rocks; impact melts; isochrons; KREEP; Mare Imbrium; melting; melts; metals; Moon; ophitic texture; plagioclase; poikilitic texture; rare earths; Rb/Sr; Sample 63545; silicates; Sm/Nd; South Pole-Aitken Basin; textures; volcanic rocks ER - TY - JOUR T1 - Investigating the sources and timing of projectiles striking the lunar surface AN - 959097358; 2012-035019 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Joy, K H AU - Kring, David A AU - Zolensky, M E AU - McKay, D S AU - Ross, D K AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2103 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - magnesium KW - magnesian silicates KW - iron oxides KW - olivine group KW - lunar breccia KW - Apollo Program KW - manganese KW - meteorites KW - pyroxene group KW - hematite KW - olivine KW - metamorphic rocks KW - orthosilicates KW - oxides KW - chain silicates KW - alkaline earth metals KW - breccia KW - impactites KW - Moon KW - Sample 60016 KW - impact breccia KW - impacts KW - nesosilicates KW - iron sulfides KW - metals KW - temporal distribution KW - sulfides KW - regolith KW - Apollo 16 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959097358?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Investigating+the+sources+and+timing+of+projectiles+striking+the+lunar+surface&rft.au=Joy%2C+K+H%3BKring%2C+David+A%3BZolensky%2C+M+E%3BMcKay%2C+D+S%3BRoss%2C+D+K%3BAnonymous&rft.aulast=Joy&rft.aufirst=K&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2103.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 16, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Apollo 16; Apollo Program; breccia; chain silicates; hematite; impact breccia; impactites; impacts; iron oxides; iron sulfides; lunar breccia; magnesian silicates; magnesium; manganese; metals; metamorphic rocks; meteorites; Moon; nesosilicates; olivine; olivine group; orthosilicates; oxides; pyroxene group; regolith; Sample 60016; silicates; sulfides; temporal distribution ER - TY - JOUR T1 - Field reconnaissance geologic mapping of the Columbia Hills, Mars, based on Mars Exploration Rover Spirit and MRO HiRISE observations AN - 959097174; 2012-034595 AB - Chemical, mineralogic, and lithologic ground truth was acquired for the first time on Mars in terrain units mapped using orbital Mars Reconnaissance Orbiter's High Resolution Imaging Science Experiment (MRO HiRISE) image data. Examination of several dozen outcrops shows that Mars is geologically complex at meter length scales, the record of its geologic history is well exposed, stratigraphic units may be identified and correlated across significant areas on the ground, and outcrops and geologic relationships between materials may be analyzed with techniques commonly employed in terrestrial field geology. Despite their burial during the course of Martian geologic time by widespread epiclastic materials, mobile fines, and fall deposits, the selective exhumation of deep and well-preserved geologic units has exposed undisturbed outcrops, stratigraphic sections, and structural information much as they are preserved and exposed on Earth. A rich geologic record awaits skilled future field investigators on Mars. The correlation of ground observations and orbital images enables construction of a corresponding geologic reconnaissance map. Most of the outcrops visited are interpreted to be pyroclastic, impactite, and epiclastic deposits overlying an unexposed substrate, probably related to a modified Gusev crater central peak. Fluids have altered chemistry and mineralogy of these protoliths in degrees that vary substantially within the same map unit. Examination of the rocks exposed above and below the major unconformity between the plains lavas and the Columbia Hills directly confirms the general conclusion from remote sensing in previous studies over past years that the early history of Mars was a time of more intense deposition and modification of the surface. Although the availability of fluids and the chemical and mineral activity declined from this early period, significant later volcanism and fluid convection enabled additional, if localized, chemical activity. JF - Journal of Geophysical Research AU - Crumpler, Larry S AU - Arvidson, Raymond E AU - Squyres, S W AU - McCoy, T J AU - Yingst, A AU - Ruff, S AU - Farrand, W AU - McSween, Harry Y AU - Powell, M AU - Ming, D W AU - Morris, Richard V AU - Bell, James F, III AU - Grant, J AU - Greeley, R AU - DesMarais, D AU - Schmidt, M AU - Cabrol, N A AU - Haldemann, A AU - Lewis, Kevin W AU - Wang, A E AU - Schroeder, C AU - Blaney, D AU - Cohen, B AU - Yen, A AU - Farmer, Jack D AU - Gellert, R AU - Guinness, E A AU - Herkenhoff, K E AU - Johnson, J R AU - Klingelhoefer, G AU - McEwen, A S AU - Rice, J W, Jr AU - Rice, Melissa S AU - deSouza, P AU - Hurowitz, J Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E00F24 PB - American Geophysical Union, Washington, DC VL - 116 IS - E SN - 0148-0227, 0148-0227 KW - soils KW - petrology KW - Spirit Rover KW - impact features KW - Mars Reconnaissance Orbiter KW - Mars KW - Columbia Hills KW - terrestrial planets KW - Mars Exploration Rover KW - planets KW - mineral composition KW - surface features KW - impact craters KW - HiRISE KW - chemical composition KW - Gusev Crater KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959097174?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Field+reconnaissance+geologic+mapping+of+the+Columbia+Hills%2C+Mars%2C+based+on+Mars+Exploration+Rover+Spirit+and+MRO+HiRISE+observations&rft.au=Crumpler%2C+Larry+S%3BArvidson%2C+Raymond+E%3BSquyres%2C+S+W%3BMcCoy%2C+T+J%3BYingst%2C+A%3BRuff%2C+S%3BFarrand%2C+W%3BMcSween%2C+Harry+Y%3BPowell%2C+M%3BMing%2C+D+W%3BMorris%2C+Richard+V%3BBell%2C+James+F%2C+III%3BGrant%2C+J%3BGreeley%2C+R%3BDesMarais%2C+D%3BSchmidt%2C+M%3BCabrol%2C+N+A%3BHaldemann%2C+A%3BLewis%2C+Kevin+W%3BWang%2C+A+E%3BSchroeder%2C+C%3BBlaney%2C+D%3BCohen%2C+B%3BYen%2C+A%3BFarmer%2C+Jack+D%3BGellert%2C+R%3BGuinness%2C+E+A%3BHerkenhoff%2C+K+E%3BJohnson%2C+J+R%3BKlingelhoefer%2C+G%3BMcEwen%2C+A+S%3BRice%2C+J+W%2C+Jr%3BRice%2C+Melissa+S%3BdeSouza%2C+P%3BHurowitz%2C+J&rft.aulast=Crumpler&rft.aufirst=Larry&rft.date=2011-01-01&rft.volume=116&rft.issue=E&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JE003749 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 30 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables, sketch map N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - chemical composition; Columbia Hills; Gusev Crater; HiRISE; impact craters; impact features; Mars; Mars Exploration Rover; Mars Reconnaissance Orbiter; mineral composition; petrology; planets; soils; Spirit Rover; surface features; terrestrial planets DO - http://dx.doi.org/10.1029/2010JE003749 ER - TY - JOUR T1 - Thermal removal from near-infrared imaging spectroscopy data of the Moon AN - 959097142; 2012-034594 AB - In the near-infrared from about 2 mu m to beyond 3 mu m, the light from the Moon is a combination of reflected sunlight and emitted thermal emission. There are multiple complexities in separating the two signals, including knowledge of the local solar incidence angle due to topography, phase angle dependencies, emissivity, and instrument calibration. Thermal emission adds to apparent reflectance, and because the emission's contribution increases over the reflected sunlight with increasing wavelength, absorption bands in the lunar reflectance spectra can be modified. In particular, the shape of the 2 mu m pyroxene band can be distorted by thermal emission, changing spectrally determined pyroxene composition and abundance. Because of the thermal emission contribution, water and hydroxyl absorptions are reduced in strength, lowering apparent abundances. It is important to quantify and remove the thermal emission for these reasons. We developed a method for deriving the temperature and emissivity from spectra of the lunar surface and removing the thermal emission in the near infrared. The method is fast enough that it can be applied to imaging spectroscopy data on the Moon. JF - Journal of Geophysical Research AU - Clark, Roger N AU - Pieters, Carle M AU - Green, Robert O AU - Boardman, Joseph W AU - Petro, Noah E Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E00G16 PB - American Geophysical Union, Washington, DC VL - 116 IS - E SN - 0148-0227, 0148-0227 KW - near-infrared spectra KW - Moon KW - calibration KW - temperature KW - physical properties KW - surface features KW - thermal emission KW - spectra KW - reflectance KW - instruments KW - design KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959097142?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Thermal+removal+from+near-infrared+imaging+spectroscopy+data+of+the+Moon&rft.au=Clark%2C+Roger+N%3BPieters%2C+Carle+M%3BGreen%2C+Robert+O%3BBoardman%2C+Joseph+W%3BPetro%2C+Noah+E&rft.aulast=Clark&rft.aufirst=Roger&rft.date=2011-01-01&rft.volume=116&rft.issue=E&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JE003751 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 27 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - calibration; design; instruments; lunar soils; Moon; near-infrared spectra; physical properties; reflectance; spectra; surface features; temperature; thermal emission DO - http://dx.doi.org/10.1029/2010JE003751 ER - TY - JOUR T1 - Compositional variability of the Marius Hills volcanic complex from the Moon Mineralogy Mapper (M (super 3) ) AN - 959097078; 2012-034592 AB - Using the Moon Mineralogy Mapper(M (super 3) ), we examine the Marius Hills volcanic complex for the first time from 0.46 to 2.97 mu m. The integrated band depth at 1 mu m separates the mare basalts on the plateau in two units: (1) a strong 1 mu m band unit of localized lava flows within the plateau that has similar olivine-rich signatures to those of the nearby Oceanus Procellarum and (2) a weaker 1 mu m band unit that characterizes most of the basalts of the plateau, which is interpreted as having a high-calcium pyroxene signature. Domes and cones within the complex belong to the high-calcium pyroxene plateau unit and are associated with the weakest 1 mu m band observed on the plateau. This difference could be the result of higher silica content, more opaque minerals, and/or a weaker olivine content of the magma. Finally, the floor of Marius crater has one of the strongest olivine-rich signatures of the entire Marius Hills complex. These compositional differences are indicative of the long and complex volcanic history of the region. The first episode started before the emplacement of the surrounding basalts of the plateau and produced the high-calcium pyroxene flows present on the plateau and their associated domes and cones. The second episode occurred concurrently or slightly after the emplacement of the adjacent Procellarum basalts and produced the olivine-rich basalts seen within the plateau, outside the plateau, and in Marius crater. If the olivine content of the lava flows increases with time, the olivine-rich region on the floor of Marius crater may represent one of the latest episodes of volcanism exposed on the Marius Hills complex. JF - Journal of Geophysical Research AU - Besse, Sebastien AU - Sunshine, J M AU - Staid, Matthew I AU - Petro, Noah E AU - Boardman, Joseph W AU - Green, R O AU - Head, J W AU - Isaacson, Peter J AU - Mustard, J F AU - Pieters, C M Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E00G13 PB - American Geophysical Union, Washington, DC VL - 116 IS - E SN - 0148-0227, 0148-0227 KW - silicates KW - volcanic rocks KW - lava flows KW - Moon KW - igneous rocks KW - Oceanus Procellarum KW - pyroxene group KW - mineral composition KW - volcanism KW - Moon Mineralogy Mapper KW - basalts KW - Marius Hills KW - chemical composition KW - chain silicates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959097078?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Compositional+variability+of+the+Marius+Hills+volcanic+complex+from+the+Moon+Mineralogy+Mapper+%28M+%28super+3%29+%29&rft.au=Besse%2C+Sebastien%3BSunshine%2C+J+M%3BStaid%2C+Matthew+I%3BPetro%2C+Noah+E%3BBoardman%2C+Joseph+W%3BGreen%2C+R+O%3BHead%2C+J+W%3BIsaacson%2C+Peter+J%3BMustard%2C+J+F%3BPieters%2C+C+M&rft.aulast=Besse&rft.aufirst=Sebastien&rft.date=2011-01-01&rft.volume=116&rft.issue=E&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JE003725 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 37 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - basalts; chain silicates; chemical composition; igneous rocks; lava flows; Marius Hills; mineral composition; Moon; Moon Mineralogy Mapper; Oceanus Procellarum; pyroxene group; silicates; volcanic rocks; volcanism DO - http://dx.doi.org/10.1029/2010JE003725 ER - TY - JOUR T1 - Compositional diversity and geologic insights of the Aristarchus Crater from Moon Mineralogy Mapper data AN - 959097044; 2012-034591 AB - The Moon Mineralogy Mapper (M (super 3) ) acquired high spatial and spectral resolution data of the Aristarchus Plateau with 140 m/pixel in 85 spectral bands from 0.43 to 3.0 mu m. The data were collected as radiance and converted to reflectance using the observational constraints and a solar spectrum scaled to the Moon-Sun distance. Summary spectral parameters for the area of mafic silicate 1 and 2 mu m bands were calculated from the M (super 3) data and used to map the distribution of key units that were then analyzed in detail with the spectral data. This analysis focuses on five key compositional units in the region. (1) The central peaks are shown to be strongly enriched in feldspar and are likely from the upper plagioclase-rich crust of the Moon. (2) The impact melt is compositionally diverse with clear signatures of feldspathic crust, olivine, and glass. (3) The crater walls and ejecta show a high degree of spatial heterogeneity and evidence for massive breccia blocks. (4) Olivine, strongly concentrated on the rim, wall, and exterior of the southeastern quadrant of the crater, is commonly associated the impact melt. (5) There are at least two types of glass deposits observed: pyroclastic glass and impact glass. JF - Journal of Geophysical Research AU - Mustard, John F AU - Pieters, Carle M AU - Isaacson, Peter J AU - Head, James W AU - Besse, Sebastien AU - Clark, Roger N AU - Klima, Rachel L AU - Petro, Noah E AU - Staid, Matthew I AU - Sunshine, Jessica M AU - Runyon, Cassandra J AU - Tompkins, Stefanie Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E00G12 PB - American Geophysical Union, Washington, DC VL - 116 IS - E SN - 0148-0227, 0148-0227 KW - silicates KW - volcanic rocks KW - impact features KW - Moon KW - igneous rocks KW - mafic composition KW - olivine group KW - nesosilicates KW - physical properties KW - mineral composition KW - olivine KW - Moon Mineralogy Mapper KW - basalts KW - Aristarchus KW - surface features KW - orthosilicates KW - impact craters KW - chemical composition KW - reflectance KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959097044?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Compositional+diversity+and+geologic+insights+of+the+Aristarchus+Crater+from+Moon+Mineralogy+Mapper+data&rft.au=Mustard%2C+John+F%3BPieters%2C+Carle+M%3BIsaacson%2C+Peter+J%3BHead%2C+James+W%3BBesse%2C+Sebastien%3BClark%2C+Roger+N%3BKlima%2C+Rachel+L%3BPetro%2C+Noah+E%3BStaid%2C+Matthew+I%3BSunshine%2C+Jessica+M%3BRunyon%2C+Cassandra+J%3BTompkins%2C+Stefanie&rft.aulast=Mustard&rft.aufirst=John&rft.date=2011-01-01&rft.volume=116&rft.issue=E&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JE003726 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 23 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Aristarchus; basalts; chemical composition; igneous rocks; impact craters; impact features; mafic composition; mineral composition; Moon; Moon Mineralogy Mapper; nesosilicates; olivine; olivine group; orthosilicates; physical properties; reflectance; silicates; surface features; volcanic rocks DO - http://dx.doi.org/10.1029/2010JE003726 ER - TY - JOUR T1 - Remote compositional analysis of lunar olivine-rich lithologies with Moon Mineralogy Mapper (M (super 3) ) spectra AN - 959097016; 2012-034590 AB - A systematic approach for deconvolving remotely sensed lunar olivine-rich visible to near-infrared (VNIR) reflectance spectra with the Modified Gaussian Model (MGM) is evaluated with Chandrayaan-1 Moon Mineralogy Mapper (M (super 3) ) spectra. Whereas earlier studies of laboratory reflectance spectra focused only on complications due to chromite inclusions in lunar olivines, we develop a systematic approach for addressing (through continuum removal) the prominent continuum slopes common to remotely sensed reflectance spectra of planetary surfaces. We have validated our continuum removal on a suite of laboratory reflectance spectra. Suites of olivine-dominated reflectance spectra from a small crater near Mare Moscoviense, the Copernicus central peak, Aristarchus, and the crater Marius in the Marius Hills were analyzed. Spectral diversity was detected in visual evaluation of the spectra and was quantified using the MGM. The MGM-derived band positions are used to estimate the olivine's composition in a relative sense. Spectra of olivines from Moscoviense exhibit diversity in their absorption features, and this diversity suggests some variation in olivine Fe/Mg content. Olivines from Copernicus are observed to be spectrally homogeneous and thus are predicted to be more compositionally homogeneous than those at Moscoviense but are of broadly similar composition to the Moscoviense olivines. Olivines from Aristarchus and Marius exhibit clear spectral differences from those at Moscoviense and Copernicus but also exhibit features that suggest contributions from other phases. If the various precautions discussed here are weighed carefully, the methods presented here can be used to make general predictions of absolute olivine composition (Fe/Mg content). JF - Journal of Geophysical Research AU - Isaacson, Peter J AU - Pieters, Carle M AU - Besse, Sebastien AU - Clark, Roger N AU - Head, James W AU - Klima, Rachel L AU - Mustard, John F AU - Petro, Noah E AU - Staid, Matthew I AU - Sunshine, Jessica M AU - Taylor, Lawrence A AU - Thaisen, Kevin G AU - Tompkins, Stefanie Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E00G11 PB - American Geophysical Union, Washington, DC VL - 116 IS - E SN - 0148-0227, 0148-0227 KW - silicates KW - petrology KW - Moon KW - olivine group KW - Moscoviense Basin KW - nesosilicates KW - physical properties KW - mineral composition KW - olivine KW - Moon Mineralogy Mapper KW - surface features KW - orthosilicates KW - reflectance KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959097016?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Remote+compositional+analysis+of+lunar+olivine-rich+lithologies+with+Moon+Mineralogy+Mapper+%28M+%28super+3%29+%29+spectra&rft.au=Isaacson%2C+Peter+J%3BPieters%2C+Carle+M%3BBesse%2C+Sebastien%3BClark%2C+Roger+N%3BHead%2C+James+W%3BKlima%2C+Rachel+L%3BMustard%2C+John+F%3BPetro%2C+Noah+E%3BStaid%2C+Matthew+I%3BSunshine%2C+Jessica+M%3BTaylor%2C+Lawrence+A%3BThaisen%2C+Kevin+G%3BTompkins%2C+Stefanie&rft.aulast=Isaacson&rft.aufirst=Peter&rft.date=2011-01-01&rft.volume=116&rft.issue=E&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JE003731 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 26 N1 - PubXState - DC N1 - Document feature - illus. incl. 5 tables N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - mineral composition; Moon; Moon Mineralogy Mapper; Moscoviense Basin; nesosilicates; olivine; olivine group; orthosilicates; petrology; physical properties; reflectance; remote sensing; silicates; surface features DO - http://dx.doi.org/10.1029/2010JE003731 ER - TY - JOUR T1 - Magmatic intrusions beneath Martian highland volcanoes; clues from eruptive history, thermal-magnetic-gravity modeling and electron reflectometry AN - 959096792; 2012-034857 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lillis, R J AU - Dufek, J AU - Kiefer, Walter S AU - Karlstrom, L AU - Bleacher, J E AU - Manga, Michael AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper no. 2180 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - demagnetization KW - magnetization KW - Mars KW - magnetic field KW - gravity anomalies KW - volcanic features KW - topography KW - Syrtis Major KW - remanent magnetization KW - thermoremanent magnetization KW - Tyrrhena Patera KW - shield volcanoes KW - thermal demagnetization KW - magmatism KW - electron reflectometry KW - highlands KW - two-dimensional models KW - terrestrial planets KW - calderas KW - planets KW - intrusions KW - magmas KW - volume KW - Mars Global Surveyor Program KW - volcanoes KW - crust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959096792?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Magmatic+intrusions+beneath+Martian+highland+volcanoes%3B+clues+from+eruptive+history%2C+thermal-magnetic-gravity+modeling+and+electron+reflectometry&rft.au=Lillis%2C+R+J%3BDufek%2C+J%3BKiefer%2C+Walter+S%3BKarlstrom%2C+L%3BBleacher%2C+J+E%3BManga%2C+Michael%3BAnonymous&rft.aulast=Lillis&rft.aufirst=R&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2180.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 15 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Jan. 18, 2012 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - calderas; crust; demagnetization; electron reflectometry; gravity anomalies; highlands; intrusions; magmas; magmatism; magnetic field; magnetization; Mars; Mars Global Surveyor Program; planets; remanent magnetization; shield volcanoes; Syrtis Major; terrestrial planets; thermal demagnetization; thermoremanent magnetization; topography; two-dimensional models; Tyrrhena Patera; volcanic features; volcanoes; volume ER - TY - JOUR T1 - Mg-spinel lithology; a new rock type on the lunar farside AN - 959096662; 2012-034587 AB - High-resolution compositional data from Moon Mineralogy Mapper (M (super 3) ) for the Moscoviense region on the lunar farside reveal three unusual, but distinctive, rock types along the inner basin ring. These are designated "OOS" since they are dominated by high concentrations of orthopyroxene, olivine, and Mg-rich spinel, respectively. The OOS occur as small areas, each a few kilometers in size, that are widely separated within the highly feldspathic setting of the basin rim. Although the abundance of plagioclase is not well constrained within the OOS, the mafic mineral content is exceptionally high, and two of the rock types could approach pyroxenite and harzburgite in composition. The third is a new rock type identified on the Moon that is dominated by Mg-rich spinel with no other mafic minerals detectable (<5% pyroxene, olivine). All OOS surfaces are old and undisturbed since basin formation. They are effectively invisible in image data and are only recognized by their distinctive composition identified spectroscopically. The origin of these unusual lithologies appears to be linked to one or more magmatic intrusions into the lower crust, perhaps near the crust-mantle interface. Processes such as fractional crystallization and gravity settling within such intrusions may provide a mechanism for concentrating the mafic components within zones several kilometers in dimension. The OOS are embedded within highly anorthositic material from the lunar crust; they may thus be near contemporaneous with crustal products from the cooling magma ocean. JF - Journal of Geophysical Research AU - Pieters, C M AU - Besse, Sebastien AU - Boardman, Joseph W AU - Buratti, B J AU - Cheek, L C AU - Clark, R N AU - Combe, Jean-Philippe AU - Dhingra, D AU - Goswami, J N AU - Green, R O AU - Head, J W AU - Isaacson, Peter J AU - Klima, Rachel L AU - Kramer, G AU - Lundeen, S AU - Malaret, Erik AU - McCord, Thomas B AU - Mustard, J F AU - Nettles, Jeffrey W AU - Petro, Noah E AU - Runyon, C AU - Staid, Matthew I AU - Sunshine, J M AU - Taylor, L A AU - Thaisen, K AU - Tompkins, S AU - Whitten, J Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E00G08 PB - American Geophysical Union, Washington, DC VL - 116 IS - E SN - 0148-0227, 0148-0227 KW - silicates KW - petrology KW - Moon KW - spinel KW - mafic composition KW - Moscoviense Basin KW - mineral composition KW - farside KW - oxides KW - framework silicates KW - chemical composition KW - feldspar group KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959096662?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Mg-spinel+lithology%3B+a+new+rock+type+on+the+lunar+farside&rft.au=Pieters%2C+C+M%3BBesse%2C+Sebastien%3BBoardman%2C+Joseph+W%3BBuratti%2C+B+J%3BCheek%2C+L+C%3BClark%2C+R+N%3BCombe%2C+Jean-Philippe%3BDhingra%2C+D%3BGoswami%2C+J+N%3BGreen%2C+R+O%3BHead%2C+J+W%3BIsaacson%2C+Peter+J%3BKlima%2C+Rachel+L%3BKramer%2C+G%3BLundeen%2C+S%3BMalaret%2C+Erik%3BMcCord%2C+Thomas+B%3BMustard%2C+J+F%3BNettles%2C+Jeffrey+W%3BPetro%2C+Noah+E%3BRunyon%2C+C%3BStaid%2C+Matthew+I%3BSunshine%2C+J+M%3BTaylor%2C+L+A%3BThaisen%2C+K%3BTompkins%2C+S%3BWhitten%2C+J&rft.aulast=Pieters&rft.aufirst=C&rft.date=2011-01-01&rft.volume=116&rft.issue=E&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JE003727 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 45 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - chemical composition; farside; feldspar group; framework silicates; mafic composition; mineral composition; Moon; Moscoviense Basin; oxides; petrology; silicates; spinel DO - http://dx.doi.org/10.1029/2010JE003727 ER - TY - JOUR T1 - Characteristics, distribution, origin, and significance of opaline silica observed by the Spirit Rover in Gusev Crater, Mars AN - 959096634; 2012-034586 AB - The presence of outcrops and soil (regolith) rich in opaline silica ( approximately 65-92 wt % SiO (sub 2) ) in association with volcanic materials adjacent to the "Home Plate" feature in Gusev crater is evidence for hydrothermal conditions. The Spirit rover has supplied a diverse set of observations that are used here to better understand the formation of silica and the activity, abundance, and fate of water in the first hydrothermal system to be explored in situ on Mars. We apply spectral, chemical, morphological, textural, and stratigraphic observations to assess whether the silica was produced by acid sulfate leaching of precursor rocks, by precipitation from silica-rich solutions, or by some combination. The apparent lack of S enrichment and the relatively low oxidation state of the Home Plate silica-rich materials appear inconsistent with the originally proposed Hawaiian analog for fumarolic acid sulfate leaching. The stratiform distribution of the silica-rich outcrops and their porous and brecciated microtextures are consistent with sinter produced by silica precipitation. There is no evidence for crystalline quartz phases among the silica occurrences, an indication of the lack of diagenetic maturation following the production of the amorphous opaline phase. JF - Journal of Geophysical Research AU - Ruff, Steven W AU - Farmer, Jack D AU - Calvin, Wendy M AU - Herkenhoff, Kenneth E AU - Johnson, Jeffrey R AU - Morris, Richard V AU - Rice, Melissa S AU - Arvidson, Raymond E AU - Bell, James F, III AU - Christensen, Philip R AU - Squyres, Steven W Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E00F23 PB - American Geophysical Union, Washington, DC VL - 116 IS - E SN - 0148-0227, 0148-0227 KW - soils KW - silicates KW - pedogenesis KW - Spirit Rover KW - silica minerals KW - opal KW - Mars KW - terrestrial planets KW - Mars Exploration Rover KW - planets KW - mineral composition KW - silica KW - framework silicates KW - chemical composition KW - regolith KW - Gusev Crater KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959096634?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Characteristics%2C+distribution%2C+origin%2C+and+significance+of+opaline+silica+observed+by+the+Spirit+Rover+in+Gusev+Crater%2C+Mars&rft.au=Ruff%2C+Steven+W%3BFarmer%2C+Jack+D%3BCalvin%2C+Wendy+M%3BHerkenhoff%2C+Kenneth+E%3BJohnson%2C+Jeffrey+R%3BMorris%2C+Richard+V%3BRice%2C+Melissa+S%3BArvidson%2C+Raymond+E%3BBell%2C+James+F%2C+III%3BChristensen%2C+Philip+R%3BSquyres%2C+Steven+W&rft.aulast=Ruff&rft.aufirst=Steven&rft.date=2011-01-01&rft.volume=116&rft.issue=E&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JE003767 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 25 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - chemical composition; framework silicates; Gusev Crater; Mars; Mars Exploration Rover; mineral composition; opal; pedogenesis; planets; regolith; silica; silica minerals; silicates; soils; Spirit Rover; terrestrial planets DO - http://dx.doi.org/10.1029/2010JE003767 ER - TY - JOUR T1 - Geology of the Moscoviense Basin AN - 959096565; 2012-034583 AB - The Moscoviense Basin, on the northern portion of the lunar farside, displays topography with a partial peak ring, in addition to rings that are offset to the southeast. These rings do not follow the typical concentric ring spacing that is recognized with other basins, suggesting that they may have formed as a result of an oblique impact or perhaps multiple impacts. In addition to the unusual ring spacing present, the Moscoviense Basin contains diverse mare basalt units covering the basin floor and a few highland mafic exposures within its rings. New analysis of previously mapped mare units suggests that the oldest mare unit is the remnant of the impact melt sheet. The Moscoviense Basin provides a glimpse into the lunar highlands terrain and an opportunity to explore the geologic context of initial lunar crustal development and modification. JF - Journal of Geophysical Research AU - Thaisen, Kevin G AU - Head, James W AU - Taylor, Lawrence A AU - Kramer, Georgiana Y AU - Isaacson, Peter J AU - Nettles, Jeffrey W AU - Petro, Noah E AU - Pieters, Carle M Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E00G07 PB - American Geophysical Union, Washington, DC VL - 116 IS - E SN - 0148-0227, 0148-0227 KW - farside KW - volcanic rocks KW - impact features KW - Moon KW - igneous rocks KW - lunar crust KW - basalts KW - surface features KW - impact craters KW - lunar highlands KW - Moscoviense Basin KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959096565?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Geology+of+the+Moscoviense+Basin&rft.au=Thaisen%2C+Kevin+G%3BHead%2C+James+W%3BTaylor%2C+Lawrence+A%3BKramer%2C+Georgiana+Y%3BIsaacson%2C+Peter+J%3BNettles%2C+Jeffrey+W%3BPetro%2C+Noah+E%3BPieters%2C+Carle+M&rft.aulast=Thaisen&rft.aufirst=Kevin&rft.date=2011-01-01&rft.volume=116&rft.issue=E&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JE003732 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 24 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - basalts; farside; igneous rocks; impact craters; impact features; lunar crust; lunar highlands; Moon; Moscoviense Basin; surface features; volcanic rocks DO - http://dx.doi.org/10.1029/2010JE003732 ER - TY - JOUR T1 - New insights into lunar petrology; distribution and composition of prominent low-Ca pyroxene exposures as observed by the Moon Mineralogy Mapper (M (super 3) ) AN - 959096537; 2012-034582 AB - Lunar geochemical groups such as Mg suite, ferroan anorthosite, and alkali suite rocks are difficult to distinguish from orbit because they are defined by both modal mineralogy and elemental composition of their constituent minerals. While modal mineralogy can be modeled, only specific minerals or elements can be directly detected. At near-infrared (NIR) wavelengths, pyroxenes are among the most spectrally distinctive minerals, and their absorption bands are sensitive to structure and composition. Pyroxenes thus provide important clues to distinguish these geochemical groups and to understand lunar crustal evolution. Using Moon Mineralogy Mapper data, we search for lithologies dominated by strong low-calcium pyroxene (LCP) signatures. We compare the NIR absorptions of 20 LCPs to a suite of synthetic pyroxenes to determine which lunar pyroxenes appear magnesian enough to be candidate Mg suite norites. We detail three prominent regions of LCP (1) in South Pole-Aitken Basin (SPA), (2) south of Mare Frigoris, and (3) north of Mare Frigoris. The absorption band positions suggest that the LCPs north of Mare Frigoris and those in SPA are compositionally similar to one another and of approximately Mg (sub 50-75) , implying that the mafic material excavated by the SPA impact was relatively iron-rich. Modified Gaussian modeling results suggest that the Apollo basin may have tapped different composition material than is exposed in much of SPA. The LCPs located in the highlands south of Mare Frigoris exhibit absorption bands at short wavelengths consistent with Mg > approximately 80. The coincidence of these Mg-rich LCPs with the thorium measured by Lunar Prospector make them good candidates for KREEP-related Mg suite pyroxenes. JF - Journal of Geophysical Research AU - Klima, Rachel L AU - Pieters, Carle M AU - Boardman, Joseph W AU - Green, Robert O AU - Head, James W, III AU - Isaacson, Peter J AU - Mustard, John F AU - Nettles, Jeffrey W AU - Petro, Noah E AU - Staid, Matthew I AU - Sunshine, Jessica M AU - Taylor, Lawrence A AU - Tompkins, Stefanie Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E00G06 PB - American Geophysical Union, Washington, DC VL - 116 IS - E SN - 0148-0227, 0148-0227 KW - silicates KW - calcium KW - alkaline earth metals KW - magma oceans KW - petrology KW - Moon KW - pyroxene group KW - mineral composition KW - metals KW - magmas KW - Moon Mineralogy Mapper KW - chemical composition KW - lunar soils KW - chain silicates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959096537?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=New+insights+into+lunar+petrology%3B+distribution+and+composition+of+prominent+low-Ca+pyroxene+exposures+as+observed+by+the+Moon+Mineralogy+Mapper+%28M+%28super+3%29+%29&rft.au=Klima%2C+Rachel+L%3BPieters%2C+Carle+M%3BBoardman%2C+Joseph+W%3BGreen%2C+Robert+O%3BHead%2C+James+W%2C+III%3BIsaacson%2C+Peter+J%3BMustard%2C+John+F%3BNettles%2C+Jeffrey+W%3BPetro%2C+Noah+E%3BStaid%2C+Matthew+I%3BSunshine%2C+Jessica+M%3BTaylor%2C+Lawrence+A%3BTompkins%2C+Stefanie&rft.aulast=Klima&rft.aufirst=Rachel&rft.date=2011-01-01&rft.volume=116&rft.issue=E&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JE003719 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 38 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; calcium; chain silicates; chemical composition; lunar soils; magma oceans; magmas; metals; mineral composition; Moon; Moon Mineralogy Mapper; petrology; pyroxene group; silicates DO - http://dx.doi.org/10.1029/2010JE003719 ER - TY - JOUR T1 - Detection of allophane on Mars through orbital and in-situ thermal-infrared spectroscopy AN - 959095565; 2012-032996 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Rampe, E B AU - Kraft, M D AU - Sharp, T G AU - Golden, D C AU - Ming, D W AU - Christensen, P R AU - Ruff, S W AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2145 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - magnesium KW - thermal infrared spectra KW - Mars KW - iron KW - gels KW - infrared spectra KW - laboratory studies KW - mineral composition KW - aluminosilicates KW - silica KW - Thermal Emission Spectrometer KW - acidic composition KW - spectra KW - orbital observations KW - Mini-TES KW - chemical weathering KW - alkaline earth metals KW - colloidal materials KW - in situ KW - secondary minerals KW - weathering KW - clay minerals KW - terrestrial planets KW - aqueous alteration KW - planets KW - allophane KW - metals KW - sheet silicates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959095565?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Detection+of+allophane+on+Mars+through+orbital+and+in-situ+thermal-infrared+spectroscopy&rft.au=Rampe%2C+E+B%3BKraft%2C+M+D%3BSharp%2C+T+G%3BGolden%2C+D+C%3BMing%2C+D+W%3BChristensen%2C+P+R%3BRuff%2C+S+W%3BAnonymous&rft.aulast=Rampe&rft.aufirst=E&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2145.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 21 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 7, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - acidic composition; alkaline earth metals; allophane; aluminosilicates; aqueous alteration; chemical weathering; clay minerals; colloidal materials; gels; in situ; infrared spectra; iron; laboratory studies; magnesium; Mars; metals; mineral composition; Mini-TES; orbital observations; planets; secondary minerals; sheet silicates; silica; silicates; spectra; terrestrial planets; Thermal Emission Spectrometer; thermal infrared spectra; weathering ER - TY - JOUR T1 - Carbonaceous chondrite-rich howardites; the potential for hydrous lithologies on the HED parent AN - 959095338; 2012-035011 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Herrin, Jason S AU - Zolensky, M E AU - Cartwright, Julia A AU - Mittlefehldt, David W AU - Ross, D K AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2806 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - stony meteorites KW - mass spectra KW - electron probe data KW - meteorites KW - Mount Prat Meteorites KW - Scott Glacier Meteorites KW - howardite KW - water content KW - spectra KW - trace elements KW - chondrites KW - SCO 06040 KW - breccia KW - textures KW - parent bodies KW - HED meteorites KW - diogenite KW - clasts KW - carbonaceous chondrites KW - impacts KW - achondrites KW - PRA 04401 KW - PRA 04402 KW - ICP mass spectra KW - petrography KW - eucrite KW - sheet silicates KW - CM chondrites KW - sulfides KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959095338?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Carbonaceous+chondrite-rich+howardites%3B+the+potential+for+hydrous+lithologies+on+the+HED+parent&rft.au=Herrin%2C+Jason+S%3BZolensky%2C+M+E%3BCartwright%2C+Julia+A%3BMittlefehldt%2C+David+W%3BRoss%2C+D+K%3BAnonymous&rft.aulast=Herrin&rft.aufirst=Jason&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2806.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 16, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; breccia; carbonaceous chondrites; chondrites; clasts; CM chondrites; diogenite; electron probe data; eucrite; HED meteorites; howardite; ICP mass spectra; impacts; mass spectra; meteorites; Mount Prat Meteorites; parent bodies; petrography; PRA 04401; PRA 04402; SCO 06040; Scott Glacier Meteorites; sheet silicates; silicates; spectra; stony meteorites; sulfides; textures; trace elements; water content ER - TY - JOUR T1 - Noble gas analysis in the quest to find "regolithic" howardites AN - 959095255; 2012-035008 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cartwright, Julia A AU - Herrmann, S AU - Herrin, Jason S AU - Mittlefehldt, David W AU - Ott, U AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2655 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - PCA 02066 KW - Pecora Escarpment Meteorites KW - stony meteorites KW - asteroids KW - isotopes KW - Lewis Cliff Meteorites KW - solar wind KW - cosmogenic elements KW - Elephant Moraine Meteorites KW - exposure age KW - stable isotopes KW - meteorites KW - EET 99408 KW - howardite KW - noble gases KW - neon KW - Meteorite Hills Meteorites KW - cosmic rays KW - MET 96500 KW - Vesta Asteroid KW - isotope ratios KW - parent bodies KW - Ne-22/Ne-21 KW - Ne-22/Ne-20 KW - achondrites KW - LEW 85313 KW - Antarctica KW - regolith KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959095255?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Noble+gas+analysis+in+the+quest+to+find+%22regolithic%22+howardites&rft.au=Cartwright%2C+Julia+A%3BHerrmann%2C+S%3BHerrin%2C+Jason+S%3BMittlefehldt%2C+David+W%3BOtt%2C+U%3BAnonymous&rft.aulast=Cartwright&rft.aufirst=Julia&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2655.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Accessed on Sept. 15, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; Antarctica; asteroids; cosmic rays; cosmogenic elements; EET 99408; Elephant Moraine Meteorites; exposure age; howardite; isotope ratios; isotopes; LEW 85313; Lewis Cliff Meteorites; MET 96500; Meteorite Hills Meteorites; meteorites; Ne-22/Ne-20; Ne-22/Ne-21; neon; noble gases; parent bodies; PCA 02066; Pecora Escarpment Meteorites; regolith; solar wind; stable isotopes; stony meteorites; Vesta Asteroid ER - TY - JOUR T1 - The regolith of 4 Vesta; inferences from howardites AN - 959095222; 2012-035007 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Mittlefehldt, David W AU - Herrin, Jason S AU - Cartwright, Julia A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2569 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Ne-20 KW - reworking KW - breccia KW - stony meteorites KW - asteroids KW - Vesta Asteroid KW - isotopes KW - solar wind KW - clasts KW - impacts KW - achondrites KW - stable isotopes KW - meteorites KW - whole rock KW - howardite KW - noble gases KW - neon KW - metals KW - nickel KW - velocity KW - petrography KW - regolith KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959095222?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+regolith+of+4+Vesta%3B+inferences+from+howardites&rft.au=Mittlefehldt%2C+David+W%3BHerrin%2C+Jason+S%3BCartwright%2C+Julia+A%3BAnonymous&rft.aulast=Mittlefehldt&rft.aufirst=David&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2569.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 24 N1 - PubXState - TX N1 - SuppNotes - Accessed on Sept. 15, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; asteroids; breccia; clasts; howardite; impacts; isotopes; metals; meteorites; Ne-20; neon; nickel; noble gases; petrography; regolith; reworking; solar wind; stable isotopes; stony meteorites; velocity; Vesta Asteroid; whole rock ER - TY - JOUR T1 - Determining the minimum saltation grain size on Mars AN - 959094920; 2012-034978 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Sullivan, R AU - Banfield, D AU - Collins, L R AU - Heineck, J T AU - Korda, D T AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2651 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Meridiani Planum KW - numerical models KW - density KW - Rouse number KW - grain size KW - suspension KW - atmosphere KW - Mars KW - turbulence KW - fluid dynamics KW - simulation KW - terrestrial planets KW - planets KW - saltation KW - viscosity KW - transport KW - eddies KW - wind tunnels KW - velocity KW - wind transport KW - particle image velocimetry KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959094920?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Determining+the+minimum+saltation+grain+size+on+Mars&rft.au=Sullivan%2C+R%3BBanfield%2C+D%3BCollins%2C+L+R%3BHeineck%2C+J+T%3BKorda%2C+D+T%3BAnonymous&rft.aulast=Sullivan&rft.aufirst=R&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2651.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 14, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; density; eddies; fluid dynamics; grain size; Mars; Meridiani Planum; numerical models; particle image velocimetry; particles; planets; Rouse number; saltation; simulation; suspension; terrestrial planets; transport; turbulence; velocity; viscosity; wind transport; wind tunnels ER - TY - JOUR T1 - Ground-based centimeter, millimeter, and submillimeter observations of Comet 103P/Hartley 2 AN - 959093906; 2012-033030 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Milam, Stefanie N AU - Charnley, S B AU - Chuang, Y L AU - Kuan, Y J AU - Coulson, I M AU - Remijan, A R AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1847 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - water KW - sulfur dioxide KW - Earth-based observations KW - isotopes KW - isotope ratios KW - long-period comets KW - hydrogen sulfide KW - formaldehyde KW - stable isotopes KW - methanol KW - volatiles KW - organic compounds KW - Hartley 2 Comet KW - comets KW - D/H KW - hydrogen KW - alcohols KW - periodicity KW - hydrogen cyanide KW - EPOXI Mission KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959093906?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Ground-based+centimeter%2C+millimeter%2C+and+submillimeter+observations+of+Comet+103P%2FHartley+2&rft.au=Milam%2C+Stefanie+N%3BCharnley%2C+S+B%3BChuang%2C+Y+L%3BKuan%2C+Y+J%3BCoulson%2C+I+M%3BRemijan%2C+A+R%3BAnonymous&rft.aulast=Milam&rft.aufirst=Stefanie&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1847.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 8, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alcohols; comets; D/H; Earth-based observations; EPOXI Mission; formaldehyde; Hartley 2 Comet; hydrogen; hydrogen cyanide; hydrogen sulfide; isotope ratios; isotopes; long-period comets; methanol; organic compounds; periodicity; stable isotopes; sulfur dioxide; volatiles; water ER - TY - JOUR T1 - The spin of 103P/Hartley 2 and its evolution during the EPOXI/DIXI encounter AN - 959092159; 2012-033021 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Belton, Michael J S AU - Thomas, Peter AU - Li, Jian-Yang AU - Carcich, Brian AU - A'Hearn, Michael F AU - Mclaughlin, Stephanie AU - Williams, Jade AU - Farnham, Tony AU - McFadden, Lucy AU - Lisse, Carey AU - Collins, Steven AU - Besse, Sebastien AU - Klaasen, Kenneth AU - Sunshine, Jessica AU - Meech, Karen J AU - Lindler, Don AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1607 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - cometary nucleus KW - Deep Impact eXtended Investigation KW - photometry KW - Hartley 2 Comet KW - comets KW - DIXI Mission KW - rotation KW - periodicity KW - frequency KW - EPOXI Mission KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959092159?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+spin+of+103P%2FHartley+2+and+its+evolution+during+the+EPOXI%2FDIXI+encounter&rft.au=Belton%2C+Michael+J+S%3BThomas%2C+Peter%3BLi%2C+Jian-Yang%3BCarcich%2C+Brian%3BA%27Hearn%2C+Michael+F%3BMclaughlin%2C+Stephanie%3BWilliams%2C+Jade%3BFarnham%2C+Tony%3BMcFadden%2C+Lucy%3BLisse%2C+Carey%3BCollins%2C+Steven%3BBesse%2C+Sebastien%3BKlaasen%2C+Kenneth%3BSunshine%2C+Jessica%3BMeech%2C+Karen+J%3BLindler%2C+Don%3BAnonymous&rft.aulast=Belton&rft.aufirst=Michael+J&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1607.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 2 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 8, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - cometary nucleus; comets; Deep Impact eXtended Investigation; DIXI Mission; EPOXI Mission; frequency; Hartley 2 Comet; periodicity; photometry; rotation ER - TY - JOUR T1 - MRO CTX stereo image processing and preliminary DEM quality assessment AN - 959091095; 2012-032943 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Shean, D E AU - Fahle, J AU - Malin, M C AU - Edwards, L J AU - Posiolova, L AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2646 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - imagery KW - elevation KW - data processing KW - Mars Reconnaissance Orbiter KW - Mars KW - digital terrain models KW - Context Camera KW - triangulation KW - geometry KW - terrestrial planets KW - planets KW - MOLA KW - corrections KW - accuracy KW - stereo imagery KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959091095?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=MRO+CTX+stereo+image+processing+and+preliminary+DEM+quality+assessment&rft.au=Shean%2C+D+E%3BFahle%2C+J%3BMalin%2C+M+C%3BEdwards%2C+L+J%3BPosiolova%2C+L%3BAnonymous&rft.aulast=Shean&rft.aufirst=D&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2646.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 21, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - accuracy; Context Camera; corrections; data processing; digital terrain models; elevation; geometry; imagery; Mars; Mars Reconnaissance Orbiter; MOLA; planets; stereo imagery; terrestrial planets; triangulation ER - TY - JOUR T1 - Calibration of the quadrupole mass spectrometer of the sample analysis at Mars instrument suite AN - 959091054; 2012-032941 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Mahaffy, Paul R AU - Trainer, M G AU - Eigenbrode, J L AU - Franz, H B AU - Stern, J C AU - Harpold, D N AU - Conrad, P G AU - Raaen, E AU - Lyness, E AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1556 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - oxygen KW - isotopes KW - mass spectra KW - Mars KW - calibration KW - nitrogen KW - carbon dioxide KW - gas chromatography KW - noble gases KW - carbon KW - spectra KW - chromatography KW - quadrupole mass spectroscopy KW - SAM instrument suite KW - mass spectroscopy KW - Sample Analysis at Mars instrument suite KW - gases KW - argon KW - terrestrial planets KW - planets KW - hydrogen KW - Mars Science Laboratory KW - spectroscopy KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959091054?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Calibration+of+the+quadrupole+mass+spectrometer+of+the+sample+analysis+at+Mars+instrument+suite&rft.au=Mahaffy%2C+Paul+R%3BTrainer%2C+M+G%3BEigenbrode%2C+J+L%3BFranz%2C+H+B%3BStern%2C+J+C%3BHarpold%2C+D+N%3BConrad%2C+P+G%3BRaaen%2C+E%3BLyness%2C+E%3BAnonymous&rft.aulast=Mahaffy&rft.aufirst=Paul&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1556.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 21, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - argon; calibration; carbon; carbon dioxide; chromatography; gas chromatography; gases; hydrogen; instruments; isotopes; Mars; Mars Science Laboratory; mass spectra; mass spectroscopy; nitrogen; noble gases; oxygen; planets; quadrupole mass spectroscopy; SAM instrument suite; Sample Analysis at Mars instrument suite; spectra; spectroscopy; terrestrial planets ER - TY - JOUR T1 - Mission status and future prospects for improving understanding of the internal structure and thermal evolution of the Moon from the Gravity Recovery and Interior Laboratory (GRAIL) Mission AN - 959090295; 2012-032961 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Zuber, Maria T AU - Smith, David E AU - Asmar, Sami W AU - Konopliv, Alexander S AU - Lemoine, Frank G AU - Melosh, H Jay AU - Neumann, Gregory A AU - Phillips, Roger J AU - Solomon, Sean C AU - Watkins, Michael M AU - Wieczorek, Mark A AU - Williams, James G AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1967 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - magma oceans KW - Moon KW - lithosphere KW - magmatism KW - GRAIL Mission KW - differentiation KW - mapping KW - thermal history KW - simulation KW - Gravity Recovery and Interior Laboratory Mission KW - gravity field KW - topography KW - objectives KW - mascons KW - brecciation KW - planetary interiors KW - lunar crust KW - lunar mantle KW - basins KW - core KW - inner core KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959090295?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Mission+status+and+future+prospects+for+improving+understanding+of+the+internal+structure+and+thermal+evolution+of+the+Moon+from+the+Gravity+Recovery+and+Interior+Laboratory+%28GRAIL%29+Mission&rft.au=Zuber%2C+Maria+T%3BSmith%2C+David+E%3BAsmar%2C+Sami+W%3BKonopliv%2C+Alexander+S%3BLemoine%2C+Frank+G%3BMelosh%2C+H+Jay%3BNeumann%2C+Gregory+A%3BPhillips%2C+Roger+J%3BSolomon%2C+Sean+C%3BWatkins%2C+Michael+M%3BWieczorek%2C+Mark+A%3BWilliams%2C+James+G%3BAnonymous&rft.aulast=Zuber&rft.aufirst=Maria&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1967.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Nov. 21, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - basins; brecciation; core; differentiation; GRAIL Mission; gravity field; Gravity Recovery and Interior Laboratory Mission; inner core; lithosphere; lunar crust; lunar mantle; magma oceans; magmatism; mapping; mascons; Moon; objectives; planetary interiors; simulation; thermal history; topography ER - TY - JOUR T1 - Crew field notes; a new tool for planetary surface exploration AN - 959090219; 2012-032958 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Hoerz, Friedrich AU - Evans, Cynthia AU - Eppler, Dean AU - Gernhardt, Michael AU - Bluethmann, William AU - Graf, Jodi AU - Bleisath, Scott AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2113 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - technology KW - data acquisition KW - video methods KW - crew field notes KW - geotraverses KW - rovers KW - simulation KW - Desert Research and Technology Studies KW - exploration KW - planets KW - extravehicular activity KW - real-time methods KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959090219?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Crew+field+notes%3B+a+new+tool+for+planetary+surface+exploration&rft.au=Hoerz%2C+Friedrich%3BEvans%2C+Cynthia%3BEppler%2C+Dean%3BGernhardt%2C+Michael%3BBluethmann%2C+William%3BGraf%2C+Jodi%3BBleisath%2C+Scott%3BAnonymous&rft.aulast=Hoerz&rft.aufirst=Friedrich&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2113.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - SuppNotes - Accessed on Nov. 21, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - crew field notes; data acquisition; Desert Research and Technology Studies; exploration; extravehicular activity; geotraverses; planets; real-time methods; rovers; simulation; technology; video methods ER - TY - JOUR T1 - Meteorites at Meridiani Planum indicate extensive surface water on early Mars AN - 959086428; 2012-032935 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Fairen, Alberto G AU - Dohm, J M AU - Thompson, S D AU - Davila, A F AU - Anderson, R C AU - Baker, V R AU - McKay, C P AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2088 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Noachian KW - erosion KW - Mars KW - differential weathering KW - Hesperian KW - terrestrial analogs KW - layered materials KW - Mars Exploration Rover KW - meteorites KW - Amazonian KW - iron meteorites KW - deflation KW - acidic composition KW - Meridiani Planum KW - chemical weathering KW - sulfates KW - Opportunity Rover KW - paleohydrology KW - paleoatmosphere KW - surface water KW - wind erosion KW - impacts KW - weathering KW - terrestrial planets KW - aqueous alteration KW - planets KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959086428?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Meteorites+at+Meridiani+Planum+indicate+extensive+surface+water+on+early+Mars&rft.au=Fairen%2C+Alberto+G%3BDohm%2C+J+M%3BThompson%2C+S+D%3BDavila%2C+A+F%3BAnderson%2C+R+C%3BBaker%2C+V+R%3BMcKay%2C+C+P%3BAnonymous&rft.aulast=Fairen&rft.aufirst=Alberto&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2088.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 19 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 21, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - acidic composition; Amazonian; aqueous alteration; chemical weathering; deflation; differential weathering; erosion; Hesperian; impacts; iron meteorites; layered materials; Mars; Mars Exploration Rover; Meridiani Planum; meteorites; Noachian; Opportunity Rover; paleoatmosphere; paleohydrology; planets; sulfates; surface water; terrestrial analogs; terrestrial planets; weathering; wind erosion ER - TY - JOUR T1 - Fayalite oxidation processes; experimental evidence for the stability of pure ferric fayalite? AN - 928894349; 2012-031750 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Martin, Audrey M AU - Righter, K AU - Keller, L P AU - Medard, E AU - Devouard, B AU - Rahman, Z AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2716 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - experimental studies KW - oxidation KW - stability KW - laihunite KW - olivine group KW - crystal structure KW - TEM data KW - iron KW - electron probe data KW - nesosilicates KW - ferric iron KW - chemical reactions KW - fayalite KW - metals KW - orthosilicates KW - reduction KW - exsolution KW - 01B:Mineralogy of silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928894349?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Fayalite+oxidation+processes%3B+experimental+evidence+for+the+stability+of+pure+ferric+fayalite%3F&rft.au=Martin%2C+Audrey+M%3BRighter%2C+K%3BKeller%2C+L+P%3BMedard%2C+E%3BDevouard%2C+B%3BRahman%2C+Z%3BAnonymous&rft.aulast=Martin&rft.aufirst=Audrey&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2716.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 13, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chemical reactions; crystal structure; electron probe data; experimental studies; exsolution; fayalite; ferric iron; iron; laihunite; metals; nesosilicates; olivine group; orthosilicates; oxidation; reduction; silicates; stability; TEM data ER - TY - JOUR T1 - An experimental study of the effects of plagioclase crystallization on REE behavior and Eu valence oxybarometry in pyroxene AN - 928894347; 2012-031749 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Burger, P V AU - Shearer, C K AU - Papike, J J AU - Le, L AU - Jones, J AU - Sutton, S R AU - Newville, M AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1173 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - stony meteorites KW - oxygen KW - ion probe data KW - Martian meteorites KW - mass spectra KW - fugacity KW - XANES spectra KW - SNC Meteorites KW - meteorites KW - pyroxene group KW - framework silicates KW - valency KW - spectra KW - rare earths KW - europium KW - chain silicates KW - plagioclase KW - experimental studies KW - QUE 94201 KW - achondrites KW - X-ray spectra KW - Antarctica KW - shergottite KW - metals KW - Queen Alexandra Range Meteorites KW - crystallization KW - feldspar group KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928894347?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=An+experimental+study+of+the+effects+of+plagioclase+crystallization+on+REE+behavior+and+Eu+valence+oxybarometry+in+pyroxene&rft.au=Burger%2C+P+V%3BShearer%2C+C+K%3BPapike%2C+J+J%3BLe%2C+L%3BJones%2C+J%3BSutton%2C+S+R%3BNewville%2C+M%3BAnonymous&rft.aulast=Burger&rft.aufirst=P&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1173.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 13, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; Antarctica; chain silicates; crystallization; europium; experimental studies; feldspar group; framework silicates; fugacity; ion probe data; Martian meteorites; mass spectra; metals; meteorites; oxygen; plagioclase; pyroxene group; QUE 94201; Queen Alexandra Range Meteorites; rare earths; shergottite; silicates; SNC Meteorites; spectra; stony meteorites; valency; X-ray spectra; XANES spectra ER - TY - JOUR T1 - Carbon isotope measurements of experimentally-derived hydrothermal mineral-catalyzed organic products by pyrolysis-isotope ratio mass spectrometry AN - 928894342; 2012-031725 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Socki, Richard A AU - Fu, Qi AU - Niles, Paul B AU - Gibson, Everett K, Jr AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2311 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - isotopes KW - gas chromatograms KW - techniques KW - Mars KW - metasomatism KW - stable isotopes KW - temperature KW - gas chromatography KW - chemical reactions KW - pyrolysis KW - carbon KW - alcohols KW - hydrothermal alteration KW - synthesis KW - chromatography KW - experimental studies KW - pressure KW - isotope ratios KW - C-13/C-12 KW - mass spectroscopy KW - high pressure KW - terrestrial planets KW - planets KW - sample preparation KW - organic compounds KW - organic acids KW - chromatograms KW - hydrocarbons KW - spectroscopy KW - high temperature KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928894342?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Carbon+isotope+measurements+of+experimentally-derived+hydrothermal+mineral-catalyzed+organic+products+by+pyrolysis-isotope+ratio+mass+spectrometry&rft.au=Socki%2C+Richard+A%3BFu%2C+Qi%3BNiles%2C+Paul+B%3BGibson%2C+Everett+K%2C+Jr%3BAnonymous&rft.aulast=Socki&rft.aufirst=Richard&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2311.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 12, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alcohols; C-13/C-12; carbon; chemical reactions; chromatograms; chromatography; experimental studies; gas chromatograms; gas chromatography; high pressure; high temperature; hydrocarbons; hydrothermal alteration; isotope ratios; isotopes; Mars; mass spectroscopy; metasomatism; organic acids; organic compounds; planets; pressure; pyrolysis; sample preparation; spectroscopy; stable isotopes; synthesis; techniques; temperature; terrestrial planets ER - TY - JOUR T1 - Evolution from ocean planet to land planet by water loss; the inner edge of habitable zone AN - 928894332; 2012-031720 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Kodama, T AU - Genda, H AU - Abe, Y AU - Zahnle, K AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2132 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - water KW - general circulation models KW - extrasolar planets KW - atmosphere KW - water vapor KW - habitable zone KW - hydrodynamic escape KW - models KW - planets KW - solar radiation KW - planetology KW - hydrodynamics KW - water content KW - greenhouse effect KW - ocean planets KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928894332?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Evolution+from+ocean+planet+to+land+planet+by+water+loss%3B+the+inner+edge+of+habitable+zone&rft.au=Kodama%2C+T%3BGenda%2C+H%3BAbe%2C+Y%3BZahnle%2C+K%3BAnonymous&rft.aulast=Kodama&rft.aufirst=T&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2132.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 12, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; extrasolar planets; general circulation models; greenhouse effect; habitable zone; hydrodynamic escape; hydrodynamics; models; ocean planets; planetology; planets; solar radiation; water; water content; water vapor ER - TY - JOUR T1 - Global roughness texture of the Moon and Mars AN - 928894249; 2012-031704 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Whelley, P L AU - Rosenburg, M AU - Glaze, L S AU - Calder, E S AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2118 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Lunar Orbiter Laser Altimeter KW - patterns KW - impact features KW - Moon KW - global KW - statistical analysis KW - roughness KW - surface textures KW - Mars KW - mapping KW - pixels KW - highlands KW - terrestrial planets KW - planets KW - topography KW - Syrtis Major KW - volcanoes KW - MOLA KW - impact craters KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928894249?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Global+roughness+texture+of+the+Moon+and+Mars&rft.au=Whelley%2C+P+L%3BRosenburg%2C+M%3BGlaze%2C+L+S%3BCalder%2C+E+S%3BAnonymous&rft.aulast=Whelley&rft.aufirst=P&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2118.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - sketch maps N1 - SuppNotes - Accessed on Sept. 9, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - global; highlands; impact craters; impact features; Lunar Orbiter Laser Altimeter; mapping; Mars; MOLA; Moon; patterns; pixels; planets; roughness; statistical analysis; surface textures; Syrtis Major; terrestrial planets; topography; volcanoes ER - TY - JOUR T1 - Identifying lava tubes and their products on Olympus Mons, Mars and implications for planetary exploration AN - 928894018; 2012-031732 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bleacher, Jacob E AU - Richardson, P W AU - Garry, W B AU - Zimbelman, J R AU - Williams, D A AU - Orr, T R AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1805 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - United States KW - imagery KW - Hawaii Island KW - Mars KW - mapping KW - exploration KW - lava tubes KW - lava fans KW - volcanic features KW - mosaics KW - shield volcanoes KW - Olympus Mons KW - Puu Oo KW - lava flows KW - Hawaii County Hawaii KW - pits KW - Hawaii KW - channels KW - East Pacific Ocean Islands KW - High Resolution Stereo Camera KW - terrestrial planets KW - morphology KW - levees KW - planets KW - Oceania KW - volcanoes KW - Polynesia KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928894018?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Identifying+lava+tubes+and+their+products+on+Olympus+Mons%2C+Mars+and+implications+for+planetary+exploration&rft.au=Bleacher%2C+Jacob+E%3BRichardson%2C+P+W%3BGarry%2C+W+B%3BZimbelman%2C+J+R%3BWilliams%2C+D+A%3BOrr%2C+T+R%3BAnonymous&rft.aulast=Bleacher&rft.aufirst=Jacob&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1805.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 13, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - channels; East Pacific Ocean Islands; exploration; Hawaii; Hawaii County Hawaii; Hawaii Island; High Resolution Stereo Camera; imagery; lava fans; lava flows; lava tubes; levees; mapping; Mars; morphology; mosaics; Oceania; Olympus Mons; pits; planets; Polynesia; Puu Oo; shield volcanoes; terrestrial planets; United States; volcanic features; volcanoes ER - TY - JOUR T1 - LIFE; Enceladus sample return mission concept for searching evidence of life AN - 928894013; 2012-031730 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Tsou, Peter AU - Brownlee, D E AU - McKay, C P AU - Beegle, L W AU - Spilker, L AU - Kanik, I AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2478 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - icy satellites KW - plumes KW - orbits KW - sample return KW - astrobiology KW - giant planets KW - Saturn KW - Cassini-Huygens Mission KW - Life Investigation For Enceladus mission concept KW - ice KW - amino acids KW - outer planets KW - satellites KW - water KW - solar system KW - Stardust Mission KW - glycine KW - cost KW - concepts KW - planets KW - planetary rings KW - organic compounds KW - organic acids KW - Enceladus Satellite KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928894013?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=LIFE%3B+Enceladus+sample+return+mission+concept+for+searching+evidence+of+life&rft.au=Tsou%2C+Peter%3BBrownlee%2C+D+E%3BMcKay%2C+C+P%3BBeegle%2C+L+W%3BSpilker%2C+L%3BKanik%2C+I%3BAnonymous&rft.aulast=Tsou&rft.aufirst=Peter&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2478.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 12, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - amino acids; astrobiology; Cassini-Huygens Mission; concepts; cost; Enceladus Satellite; giant planets; glycine; ice; icy satellites; Life Investigation For Enceladus mission concept; orbits; organic acids; organic compounds; outer planets; planetary rings; planets; plumes; sample return; satellites; Saturn; solar system; Stardust Mission; water ER - TY - JOUR T1 - The O/OREOS mission; astrobiology data collected in low Earth orbit AN - 928894005; 2012-031727 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Ehrenfreund, P AU - Ricco, A J AU - Quinn, R AU - Bramall, N AU - Bryson, K AU - Chittenden, J AU - Cook, A AU - Mancinelli, R AU - Mattioda, A AU - Minelli, G AU - Nicholson, W AU - Santos, O AU - Squires, D AU - Kitts, C AU - Rasay, R AU - Young, A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1918 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - experimental studies KW - Bacillus subtilis KW - pigments KW - orbits KW - astrobiology KW - interplanetary space KW - biomarkers KW - ultraviolet radiation KW - adaptation KW - Organism/Organic Exposure to Orbital Stresses KW - organic compounds KW - organic acids KW - electromagnetic radiation KW - amino acids KW - bacteria KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - O/OREOS Satellite KW - cosmic rays KW - porphyrins KW - Bacillus KW - aromatic hydrocarbons KW - microorganisms KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928894005?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+O%2FOREOS+mission%3B+astrobiology+data+collected+in+low+Earth+orbit&rft.au=Ehrenfreund%2C+P%3BRicco%2C+A+J%3BQuinn%2C+R%3BBramall%2C+N%3BBryson%2C+K%3BChittenden%2C+J%3BCook%2C+A%3BMancinelli%2C+R%3BMattioda%2C+A%3BMinelli%2C+G%3BNicholson%2C+W%3BSantos%2C+O%3BSquires%2C+D%3BKitts%2C+C%3BRasay%2C+R%3BYoung%2C+A%3BAnonymous&rft.aulast=Ehrenfreund&rft.aufirst=P&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1918.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - TX N1 - SuppNotes - Accessed on Sept. 12, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - adaptation; amino acids; aromatic hydrocarbons; astrobiology; Bacillus; Bacillus subtilis; bacteria; biomarkers; cosmic rays; electromagnetic radiation; experimental studies; hydrocarbons; interplanetary space; microorganisms; O/OREOS Satellite; orbits; organic acids; organic compounds; Organism/Organic Exposure to Orbital Stresses; pigments; polycyclic aromatic hydrocarbons; porphyrins; ultraviolet radiation ER - TY - JOUR T1 - Investigation on a phyllosilicate-bearing crater in the northern plains of Mars AN - 928893997; 2012-031693 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Gross, Christoph AU - Wendt, L AU - Combe, J P AU - Jodlowski, P AU - Marzo, G A AU - Roush, T L AU - McCord, T AU - Halbach, P AU - Neukum, G AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1875 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - hyperspectral analysis KW - alteration KW - impact features KW - olivine group KW - Mars KW - mapping KW - erosion features KW - aqueous solutions KW - Compact Reconnaissance Imaging Spectrometer for Mars KW - sublimation KW - pyroxene group KW - clinopyroxene KW - olivine KW - orthosilicates KW - gullies KW - chlorite group KW - chain silicates KW - prehnite KW - CRISM KW - High Resolution Stereo Camera KW - clay minerals KW - terrestrial planets KW - nesosilicates KW - chlorite KW - planets KW - sheet silicates KW - impact craters KW - orthopyroxene KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928893997?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Investigation+on+a+phyllosilicate-bearing+crater+in+the+northern+plains+of+Mars&rft.au=Gross%2C+Christoph%3BWendt%2C+L%3BCombe%2C+J+P%3BJodlowski%2C+P%3BMarzo%2C+G+A%3BRoush%2C+T+L%3BMcCord%2C+T%3BHalbach%2C+P%3BNeukum%2C+G%3BAnonymous&rft.aulast=Gross&rft.aufirst=Christoph&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1875.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 9, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alteration; aqueous solutions; chain silicates; chlorite; chlorite group; clay minerals; clinopyroxene; Compact Reconnaissance Imaging Spectrometer for Mars; CRISM; erosion features; gullies; High Resolution Stereo Camera; hyperspectral analysis; impact craters; impact features; mapping; Mars; nesosilicates; olivine; olivine group; orthopyroxene; orthosilicates; planets; prehnite; pyroxene group; sheet silicates; silicates; sublimation; terrestrial planets ER - TY - JOUR T1 - Correlation of low-albedo deposits on the floors of Oudemans Crater and southeast Noctis Labryinthus AN - 928893977; 2012-031686 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Mest, S C AU - Weitz, C M AU - Tornabene, L L AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2547 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - eolian features KW - albedo KW - high-resolution methods KW - imagery KW - impact features KW - THEMIS KW - Noctis Labyrinthus KW - Mars KW - correlation KW - impacts KW - Context Camera KW - ejecta KW - terrestrial planets KW - morphology KW - planets KW - landslides KW - transient phenomena KW - mass movements KW - Oudemans Crater KW - impact craters KW - HiRISE KW - central peaks KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928893977?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Correlation+of+low-albedo+deposits+on+the+floors+of+Oudemans+Crater+and+southeast+Noctis+Labryinthus&rft.au=Mest%2C+S+C%3BWeitz%2C+C+M%3BTornabene%2C+L+L%3BAnonymous&rft.aulast=Mest&rft.aufirst=S&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2547.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 8, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - albedo; central peaks; Context Camera; correlation; ejecta; eolian features; high-resolution methods; HiRISE; imagery; impact craters; impact features; impacts; landslides; Mars; mass movements; morphology; Noctis Labyrinthus; Oudemans Crater; planets; terrestrial planets; THEMIS; transient phenomena ER - TY - JOUR T1 - Formation of liquid water in the shallow subsurface under simulated Martian conditions AN - 928893799; 2012-031715 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Pavlov, A A AU - Caffrey, M AU - Getty, S AU - Johnson, C S AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2480 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - water KW - soils KW - electrical conductivity KW - pressure KW - cyclic processes KW - Mars KW - simulation KW - perchlorate KW - terrestrial planets KW - sublimation KW - planets KW - shallow depth KW - conductivity KW - ice KW - heating KW - atmospheric pressure KW - ground-surface temperature KW - diurnal variations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928893799?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Formation+of+liquid+water+in+the+shallow+subsurface+under+simulated+Martian+conditions&rft.au=Pavlov%2C+A+A%3BCaffrey%2C+M%3BGetty%2C+S%3BJohnson%2C+C+S%3BAnonymous&rft.aulast=Pavlov&rft.aufirst=A&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2480.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 12, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmospheric pressure; conductivity; cyclic processes; diurnal variations; electrical conductivity; ground-surface temperature; heating; ice; Mars; perchlorate; planets; pressure; shallow depth; simulation; soils; sublimation; terrestrial planets; water ER - TY - JOUR T1 - The search for biosignatures on Mars AN - 928893787; 2012-031710 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Oehler, Dorothy Z AU - Allen, Carlton C AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1178 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - water KW - silicates KW - shale KW - smectite KW - prediction KW - astrobiology KW - Mars KW - satellite methods KW - biomarkers KW - clay minerals KW - terrestrial planets KW - planets KW - organic compounds KW - sedimentary rocks KW - paleoenvironment KW - fluvial features KW - sheet silicates KW - Acidalia Planitia KW - clastic rocks KW - Chryse Planitia KW - preservation KW - remote sensing KW - facies KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928893787?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+search+for+biosignatures+on+Mars&rft.au=Oehler%2C+Dorothy+Z%3BAllen%2C+Carlton+C%3BAnonymous&rft.aulast=Oehler&rft.aufirst=Dorothy&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1178.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 30 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 9, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Acidalia Planitia; astrobiology; biomarkers; Chryse Planitia; clastic rocks; clay minerals; facies; fluvial features; Mars; organic compounds; paleoenvironment; planets; prediction; preservation; remote sensing; satellite methods; sedimentary rocks; shale; sheet silicates; silicates; smectite; terrestrial planets; water ER - TY - JOUR T1 - Release of HiRISE digital terrain models to the Planetary Data System AN - 928893782; 2012-031708 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Mattson, S AU - Kirk, R L AU - Heyd, R AU - McEwen, A S AU - Eliason, E AU - Hare, T AU - Beyer, R AU - Howington-Kraus, E AU - Okubo, C AU - Herkenhoff, K AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1558 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - high-resolution methods KW - imagery KW - precision KW - data processing KW - Mars Reconnaissance Orbiter KW - Mars KW - mapping KW - pixels KW - digital terrain models KW - High Resolution Imaging Science Experiment KW - terrestrial planets KW - planets KW - signal-to-noise ratio KW - HiRISE KW - algorithms KW - stereo imagery KW - Planetary Data System KW - color imagery KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928893782?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Release+of+HiRISE+digital+terrain+models+to+the+Planetary+Data+System&rft.au=Mattson%2C+S%3BKirk%2C+R+L%3BHeyd%2C+R%3BMcEwen%2C+A+S%3BEliason%2C+E%3BHare%2C+T%3BBeyer%2C+R%3BHowington-Kraus%2C+E%3BOkubo%2C+C%3BHerkenhoff%2C+K%3BAnonymous&rft.aulast=Mattson&rft.aufirst=S&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1558.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 9, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - algorithms; color imagery; data processing; digital terrain models; High Resolution Imaging Science Experiment; high-resolution methods; HiRISE; imagery; mapping; Mars; Mars Reconnaissance Orbiter; pixels; Planetary Data System; planets; precision; signal-to-noise ratio; stereo imagery; terrestrial planets ER - TY - JOUR T1 - Explosive volcanic eruptions into the Martian atmosphere; tracking ash and water ice AN - 928893223; 2012-031746 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Kerber, Laura AU - Head, J W AU - Madeleine, J B AU - Forget, F AU - Wilson, L AU - Levine, J S AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2015 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - plumes KW - volcanic rocks KW - igneous rocks KW - water vapor KW - Mars KW - simulation KW - layered materials KW - explosive eruptions KW - sublimation KW - Medusae Fossae Formation KW - volcanism KW - ice KW - volcanic ash KW - Apollinaris Patera KW - vents KW - general circulation models KW - grain size KW - Elysium Mons KW - atmosphere KW - terrestrial planets KW - models KW - pyroclastics KW - planets KW - atmospheric pressure KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928893223?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Explosive+volcanic+eruptions+into+the+Martian+atmosphere%3B+tracking+ash+and+water+ice&rft.au=Kerber%2C+Laura%3BHead%2C+J+W%3BMadeleine%2C+J+B%3BForget%2C+F%3BWilson%2C+L%3BLevine%2C+J+S%3BAnonymous&rft.aulast=Kerber&rft.aufirst=Laura&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2015.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 23 N1 - PubXState - TX N1 - Document feature - sketch maps N1 - SuppNotes - Accessed on Sept. 13, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Apollinaris Patera; atmosphere; atmospheric pressure; Elysium Mons; explosive eruptions; general circulation models; grain size; ice; igneous rocks; layered materials; Mars; Medusae Fossae Formation; models; planets; plumes; pyroclastics; simulation; sublimation; terrestrial planets; vents; volcanic ash; volcanic rocks; volcanism; water vapor ER - TY - JOUR T1 - Organic carbon features identified in the Nakhla Martian meteorite AN - 928892016; 2012-029139 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - McKay, D S AU - Thomas-Keprta, K L AU - Clemett, S J AU - Gibson, E K, Jr AU - Le, L AU - Rahman, Z AU - Wentworth, S J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2673 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - halides KW - alteration KW - nakhlite KW - stony meteorites KW - iddingsite KW - sulfates KW - Martian meteorites KW - Nakhla Meteorite KW - achondrites KW - X-ray spectra KW - TEM data KW - halite KW - EDS spectra KW - SNC Meteorites KW - meteorites KW - gypsum KW - carbon KW - chlorides KW - spectra KW - organic carbon KW - SEM data KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928892016?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Organic+carbon+features+identified+in+the+Nakhla+Martian+meteorite&rft.au=McKay%2C+D+S%3BThomas-Keprta%2C+K+L%3BClemett%2C+S+J%3BGibson%2C+E+K%2C+Jr%3BLe%2C+L%3BRahman%2C+Z%3BWentworth%2C+S+J%3BAnonymous&rft.aulast=McKay&rft.aufirst=D&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2673.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 16 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 31, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; alteration; carbon; chlorides; EDS spectra; gypsum; halides; halite; iddingsite; Martian meteorites; meteorites; Nakhla Meteorite; nakhlite; organic carbon; SEM data; SNC Meteorites; spectra; stony meteorites; sulfates; TEM data; X-ray spectra ER - TY - JOUR T1 - Cryogenic origin for Mars analog carbonates in the Bockfjord volcanic complex, Svalbard (Norway) AN - 928892004; 2012-029137 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Amundsen, H E F AU - Benning, L AU - Blake, D F AU - Fogel, M AU - Ming, D W AU - Skidmore, M AU - Steele, A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2223 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - alkali basalts KW - cryogenic processes KW - volcanic rocks KW - stony meteorites KW - oxygen KW - Svalbard KW - isotopes KW - blue ice KW - Martian meteorites KW - igneous rocks KW - Mars KW - freezing KW - stable isotopes KW - carbon dioxide KW - meteorites KW - phase equilibria KW - ice KW - carbon KW - basalts KW - cement KW - Bockfjord volcanic complex KW - ALH 84001 KW - vents KW - closed systems KW - isotope ratios KW - Arctic region KW - C-13/C-12 KW - glaciers KW - O-18/O-16 KW - hydrochemistry KW - achondrites KW - terrestrial planets KW - planets KW - Allan Hills Meteorites KW - Antarctica KW - carbonates KW - Mars analogs KW - meltwater KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928892004?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Cryogenic+origin+for+Mars+analog+carbonates+in+the+Bockfjord+volcanic+complex%2C+Svalbard+%28Norway%29&rft.au=Amundsen%2C+H+E+F%3BBenning%2C+L%3BBlake%2C+D+F%3BFogel%2C+M%3BMing%2C+D+W%3BSkidmore%2C+M%3BSteele%2C+A%3BAnonymous&rft.aulast=Amundsen&rft.aufirst=H+E&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2223.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 31, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; ALH 84001; alkali basalts; Allan Hills Meteorites; Antarctica; Arctic region; basalts; blue ice; Bockfjord volcanic complex; C-13/C-12; carbon; carbon dioxide; carbonates; cement; closed systems; cryogenic processes; freezing; glaciers; hydrochemistry; ice; igneous rocks; isotope ratios; isotopes; Mars; Mars analogs; Martian meteorites; meltwater; meteorites; O-18/O-16; oxygen; phase equilibria; planets; stable isotopes; stony meteorites; Svalbard; terrestrial planets; vents; volcanic rocks ER - TY - JOUR T1 - A terrestrial analogue from Spitsbergen (Svalbard, Norway) for the Comanche carbonate at Gusev Crater, Mars AN - 928891998; 2012-029136 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Morris, Richard V AU - Blake, David F AU - Bish, D AU - Ming, D W AU - Agresti, D G AU - Treiman, A H AU - Steele, A AU - Amundsen, H E F AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1699 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - near-infrared spectra KW - Spirit Rover KW - X-ray diffraction data KW - Svalbard KW - optical spectra KW - Comanche outcrop KW - Mars KW - Spitsbergen KW - metasomatism KW - terrestrial analogs KW - Sverrefjell KW - iron KW - Mars Exploration Rover KW - dolomite KW - ferric iron KW - hydrothermal alteration KW - spectra KW - cement KW - Gusev Crater KW - Mossbauer spectra KW - ankerite KW - secondary minerals KW - Arctic region KW - ferrous iron KW - wavelength KW - terrestrial planets KW - planets KW - siderite KW - metals KW - volcanoes KW - carbonates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928891998?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=A+terrestrial+analogue+from+Spitsbergen+%28Svalbard%2C+Norway%29+for+the+Comanche+carbonate+at+Gusev+Crater%2C+Mars&rft.au=Morris%2C+Richard+V%3BBlake%2C+David+F%3BBish%2C+D%3BMing%2C+D+W%3BAgresti%2C+D+G%3BTreiman%2C+A+H%3BSteele%2C+A%3BAmundsen%2C+H+E+F%3BAnonymous&rft.aulast=Morris&rft.aufirst=Richard&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1699.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 31, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - ankerite; Arctic region; carbonates; cement; Comanche outcrop; dolomite; ferric iron; ferrous iron; Gusev Crater; hydrothermal alteration; iron; Mars; Mars Exploration Rover; metals; metasomatism; Mossbauer spectra; near-infrared spectra; optical spectra; planets; secondary minerals; siderite; spectra; Spirit Rover; Spitsbergen; Svalbard; Sverrefjell; terrestrial analogs; terrestrial planets; volcanoes; wavelength; X-ray diffraction data ER - TY - JOUR T1 - Carbonate cements from the Sverrefjell and Sigurdfjell Volcanoes, Svalbard Norway; analogs for Martian carbonates AN - 928891993; 2012-029135 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Blake, David F AU - Treiman, A H AU - Morris, Richard V AU - Bish, D AU - Amundsen, H E F AU - Steele, A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2167 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - volcanic rocks KW - Svalbard KW - Sigurdfjell KW - igneous rocks KW - Mars KW - Europe KW - Sverrefjell KW - temperature KW - dolomite KW - basalts KW - cement KW - vents KW - volcanic breccia KW - breccia KW - Western Europe KW - cementation KW - Arctic region KW - magnesite KW - hydrothermal conditions KW - terrestrial planets KW - planets KW - siderite KW - Scandinavia KW - huntite KW - diagenesis KW - volcanoes KW - Norway KW - carbonates KW - Mars analogs KW - high temperature KW - 06A:Sedimentary petrology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928891993?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Carbonate+cements+from+the+Sverrefjell+and+Sigurdfjell+Volcanoes%2C+Svalbard+Norway%3B+analogs+for+Martian+carbonates&rft.au=Blake%2C+David+F%3BTreiman%2C+A+H%3BMorris%2C+Richard+V%3BBish%2C+D%3BAmundsen%2C+H+E+F%3BSteele%2C+A%3BAnonymous&rft.aulast=Blake&rft.aufirst=David&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2167.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 30, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Arctic region; basalts; breccia; carbonates; cement; cementation; diagenesis; dolomite; Europe; high temperature; huntite; hydrothermal conditions; igneous rocks; magnesite; Mars; Mars analogs; Norway; planets; Scandinavia; siderite; Sigurdfjell; Svalbard; Sverrefjell; temperature; terrestrial planets; vents; volcanic breccia; volcanic rocks; volcanoes; Western Europe ER - TY - JOUR T1 - Evolution of CO (sub 2) and H (sub 2) O on Mars; a cold early history AN - 928891979; 2012-029132 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Niles, Paul B AU - Michalski, J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2471 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - upwelling KW - oxygen KW - Noachian KW - isotopes KW - Mars KW - atmospheric precipitation KW - Hesperian KW - paleoclimatology KW - stable isotopes KW - ground water KW - carbon dioxide KW - ozone KW - carbon KW - water KW - secondary minerals KW - isotope ratios KW - C-13/C-12 KW - photochemistry KW - atmosphere KW - weathering KW - terrestrial planets KW - models KW - planets KW - O-18 KW - O-17 KW - atmospheric pressure KW - aerosols KW - carbonates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928891979?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Evolution+of+CO+%28sub+2%29+and+H+%28sub+2%29+O+on+Mars%3B+a+cold+early+history&rft.au=Niles%2C+Paul+B%3BMichalski%2C+J%3BAnonymous&rft.aulast=Niles&rft.aufirst=Paul&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2471.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 22 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 30, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aerosols; atmosphere; atmospheric precipitation; atmospheric pressure; C-13/C-12; carbon; carbon dioxide; carbonates; ground water; Hesperian; isotope ratios; isotopes; Mars; models; Noachian; O-17; O-18; oxygen; ozone; paleoclimatology; photochemistry; planets; secondary minerals; stable isotopes; terrestrial planets; upwelling; water; weathering ER - TY - JOUR T1 - International Observe the Moon Night; a successful means for sharing lunar science with an international audience AN - 928891294; 2012-029116 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Hsu, Brooke C AU - Bleacher, L V AU - Daou, D AU - Day, B H AU - Jones, Andrea J P AU - Shaner, A AU - Shipp, S AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1193 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - programs KW - InOMN KW - public awareness KW - Moon KW - International Observe the Moon Night KW - international cooperation KW - education KW - computer networks KW - photography KW - Internet KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928891294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=International+Observe+the+Moon+Night%3B+a+successful+means+for+sharing+lunar+science+with+an+international+audience&rft.au=Hsu%2C+Brooke+C%3BBleacher%2C+L+V%3BDaou%2C+D%3BDay%2C+B+H%3BJones%2C+Andrea+J+P%3BShaner%2C+A%3BShipp%2C+S%3BAnonymous&rft.aulast=Hsu&rft.aufirst=Brooke&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1193.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - illus. incl. sketch map N1 - SuppNotes - Accessed on Aug. 30, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - computer networks; education; InOMN; international cooperation; International Observe the Moon Night; Internet; Moon; photography; programs; public awareness ER - TY - JOUR T1 - Jupiter observation campaign; citizen science at the outer planets AN - 928891292; 2012-029115 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Jones, J H AU - Wessen, A S AU - Pappalardo, R AU - Vance, S AU - Dyches, P AU - Beisser, K AU - Perry, J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2213 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - planets KW - public awareness KW - NASA KW - Jupiter KW - government agencies KW - outer planets KW - education KW - giant planets KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928891292?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Jupiter+observation+campaign%3B+citizen+science+at+the+outer+planets&rft.au=Jones%2C+J+H%3BWessen%2C+A+S%3BPappalardo%2C+R%3BVance%2C+S%3BDyches%2C+P%3BBeisser%2C+K%3BPerry%2C+J%3BAnonymous&rft.aulast=Jones&rft.aufirst=J&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2213.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 29, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - public awareness; education; giant planets; government agencies; Jupiter; NASA; outer planets; planets ER - TY - JOUR T1 - NASA mission applications of citizen science AN - 928891289; 2012-029114 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Day, B H AU - Mitchell, B K AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2472 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - programs KW - public awareness KW - NASA KW - government agencies KW - education KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928891289?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=NASA+mission+applications+of+citizen+science&rft.au=Day%2C+B+H%3BMitchell%2C+B+K%3BAnonymous&rft.aulast=Day&rft.aufirst=B&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2472.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - TX N1 - SuppNotes - Accessed on Aug. 26, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - public awareness; education; government agencies; NASA; programs ER - TY - JOUR T1 - Designing, implementing, and evaluating thematic, inquiry-based, standards-aligned professional development experiences for educators through NASA mission education and public outreach AN - 928891278; 2012-029110 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Jones, Andrea J P AU - Hsu, Brooke C AU - Bleacher, L V AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1812 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - public awareness KW - Moon KW - Lunar Reconnaissance Orbiter KW - government agencies KW - education KW - teacher education KW - best practices KW - symposia KW - NASA KW - curricula KW - professional development KW - design KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928891278?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Designing%2C+implementing%2C+and+evaluating+thematic%2C+inquiry-based%2C+standards-aligned+professional+development+experiences+for+educators+through+NASA+mission+education+and+public+outreach&rft.au=Jones%2C+Andrea+J+P%3BHsu%2C+Brooke+C%3BBleacher%2C+L+V%3BAnonymous&rft.aulast=Jones&rft.aufirst=Andrea+J&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1812.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 26, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - best practices; curricula; design; education; government agencies; Lunar Reconnaissance Orbiter; Moon; NASA; professional development; public awareness; symposia; teacher education ER - TY - JOUR T1 - Lessons learned; best practices in educator workshops AN - 928891273; 2012-029108 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Shupla, C AU - Shipp, S AU - Allen, Jaclyn AU - Tobola, Kay AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2828 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - models KW - best practices KW - symposia KW - planning KW - education KW - teacher education KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928891273?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Lessons+learned%3B+best+practices+in+educator+workshops&rft.au=Shupla%2C+C%3BShipp%2C+S%3BAllen%2C+Jaclyn%3BTobola%2C+Kay%3BAnonymous&rft.aulast=Shupla&rft.aufirst=C&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2828.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 26, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - best practices; education; models; planning; symposia; teacher education ER - TY - JOUR T1 - Mechanisms for the depletion of chromium in Mg-suite parental magmas AN - 928890960; 2012-029155 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Elardo, S M AU - McCubbin, F M AU - Shearer, C K, Jr AU - Draper, D S AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2309 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - magnesium KW - igneous rocks KW - olivine group KW - electron probe data KW - lunar magnesian suite KW - plutonic rocks KW - melting KW - cumulates KW - olivine KW - orthosilicates KW - oxides KW - heterogeneity KW - depletion KW - chromium KW - alkaline earth metals KW - magma oceans KW - Moon KW - Sample 76535 KW - spinel KW - chromite KW - nesosilicates KW - troctolite KW - metals KW - magmas KW - lunar mantle KW - crystallization KW - core KW - gabbros KW - Sample 76335 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928890960?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Mechanisms+for+the+depletion+of+chromium+in+Mg-suite+parental+magmas&rft.au=Elardo%2C+S+M%3BMcCubbin%2C+F+M%3BShearer%2C+C+K%2C+Jr%3BDraper%2C+D+S%3BAnonymous&rft.aulast=Elardo&rft.aufirst=S&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2309.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 31, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; chromite; chromium; core; crystallization; cumulates; depletion; electron probe data; gabbros; heterogeneity; igneous rocks; lunar magnesian suite; lunar mantle; magma oceans; magmas; magnesium; melting; metals; Moon; nesosilicates; olivine; olivine group; orthosilicates; oxides; plutonic rocks; Sample 76335; Sample 76535; silicates; spinel; troctolite ER - TY - JOUR T1 - Sm-Nd and Ar-Ar studies of Dho 908 and 489; implications for lunar crustal history AN - 928890958; 2012-029154 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nyquist, L E AU - Shih, C Y AU - Reese, Y D AU - Park, J AU - Bogard, D D AU - Garrison, D H AU - Yamaguchi, A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2368 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - lunar meteorites KW - stony meteorites KW - isotopes KW - igneous rocks KW - ferroan anorthosite KW - stable isotopes KW - meteorites KW - Dho 489 KW - plutonic rocks KW - dates KW - absolute age KW - rare earths KW - Dho 908 KW - Dhofar Meteorites KW - Ar/Ar KW - Moon KW - isotope ratios KW - isochrons KW - achondrites KW - anorthosite KW - Nd-144/Nd-143 KW - lunar samples KW - troctolite KW - Sm/Nd KW - metals KW - lunar crust KW - gabbros KW - neodymium KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928890958?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Sm-Nd+and+Ar-Ar+studies+of+Dho+908+and+489%3B+implications+for+lunar+crustal+history&rft.au=Nyquist%2C+L+E%3BShih%2C+C+Y%3BReese%2C+Y+D%3BPark%2C+J%3BBogard%2C+D+D%3BGarrison%2C+D+H%3BYamaguchi%2C+A%3BAnonymous&rft.aulast=Nyquist&rft.aufirst=L&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2368.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 31, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - absolute age; achondrites; anorthosite; Ar/Ar; dates; Dho 489; Dho 908; Dhofar Meteorites; ferroan anorthosite; gabbros; igneous rocks; isochrons; isotope ratios; isotopes; lunar crust; lunar meteorites; lunar samples; metals; meteorites; Moon; Nd-144/Nd-143; neodymium; plutonic rocks; rare earths; Sm/Nd; stable isotopes; stony meteorites; troctolite ER - TY - JOUR T1 - Dar al Gani 962; a Libyan silicated IAB iron with similarities to Landes AN - 925710397; 2012-027458 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Kuehner, S M AU - Irving, A J AU - Bunch, Ted E AU - Rumble, D, III AU - Jerman, G A AU - Sipiera, P P AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract no. 1625 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - stony meteorites KW - oxygen KW - isotopes KW - daubreelite KW - stable isotopes KW - meteorites KW - schreibersite KW - mineral composition KW - Dar al Gani Meteorites KW - iron meteorites KW - oxides KW - alloys KW - O-17/O-16 KW - IAB meteorites KW - isotope ratios KW - winonaite KW - chromite KW - O-18/O-16 KW - clasts KW - phosphides KW - achondrites KW - DaG 962 KW - petrography KW - sulfides KW - Landes Meteorite KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925710397?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Dar+al+Gani+962%3B+a+Libyan+silicated+IAB+iron+with+similarities+to+Landes&rft.au=Kuehner%2C+S+M%3BIrving%2C+A+J%3BBunch%2C+Ted+E%3BRumble%2C+D%2C+III%3BJerman%2C+G+A%3BSipiera%2C+P+P%3BAnonymous&rft.aulast=Kuehner&rft.aufirst=S&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1625.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 1, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; alloys; chromite; clasts; DaG 962; Dar al Gani Meteorites; daubreelite; IAB meteorites; iron meteorites; isotope ratios; isotopes; Landes Meteorite; meteorites; mineral composition; O-17/O-16; O-18/O-16; oxides; oxygen; petrography; phosphides; schreibersite; silicates; stable isotopes; stony meteorites; sulfides; winonaite ER - TY - JOUR T1 - Fe-SEM, FIB and TEM study of surface deposits on Apollo 15 green glass volcanic spherules AN - 925710334; 2012-027386 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Ross, Daniel K AU - Thomas-Keprta, K L AU - Rahman, Z AU - Wentworth, S J AU - McKay, D S AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2203 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - zinc KW - alkaline earth metals KW - magnesium KW - volcanic rocks KW - oxygen KW - glasses KW - Moon KW - igneous rocks KW - oxidation KW - Apollo Program KW - silicon KW - TEM data KW - iron KW - focused ion beam technique KW - metals KW - sulfur KW - Apollo 15 KW - crystallites KW - SEM data KW - field emission scanning electron microscopy KW - spherules KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925710334?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Fe-SEM%2C+FIB+and+TEM+study+of+surface+deposits+on+Apollo+15+green+glass+volcanic+spherules&rft.au=Ross%2C+Daniel+K%3BThomas-Keprta%2C+K+L%3BRahman%2C+Z%3BWentworth%2C+S+J%3BMcKay%2C+D+S%3BAnonymous&rft.aulast=Ross&rft.aufirst=Daniel&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2203.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 7, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Apollo 15; Apollo Program; crystallites; field emission scanning electron microscopy; focused ion beam technique; glasses; igneous rocks; iron; magnesium; metals; Moon; oxidation; oxygen; SEM data; silicon; spherules; sulfur; TEM data; volcanic rocks; zinc ER - TY - JOUR T1 - The effect of free-surface topography on seismic waves in the Moon AN - 925710302; 2012-027370 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Schmerr, Nicholas C AU - Matzel, E AU - Ford, S R AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1961 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - seismograms KW - Lunar Orbiter Laser Altimeter KW - moonquakes KW - Moon KW - Lunar Reconnaissance Orbiter KW - long-period seismographs KW - roughness KW - elastic waves KW - seismographs KW - models KW - topography KW - short-period seismographs KW - lunar crust KW - lunar mantle KW - seismic waves KW - seismic networks KW - arrays KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925710302?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+effect+of+free-surface+topography+on+seismic+waves+in+the+Moon&rft.au=Schmerr%2C+Nicholas+C%3BMatzel%2C+E%3BFord%2C+S+R%3BAnonymous&rft.aulast=Schmerr&rft.aufirst=Nicholas&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1961.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 18 N1 - PubXState - TX N1 - Document feature - illus. incl. sketch map N1 - SuppNotes - Accessed on Nov. 7, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - arrays; elastic waves; long-period seismographs; lunar crust; lunar mantle; Lunar Orbiter Laser Altimeter; Lunar Reconnaissance Orbiter; models; Moon; moonquakes; roughness; seismic networks; seismic waves; seismograms; seismographs; short-period seismographs; topography ER - TY - JOUR T1 - New technology/old technology; comparing lunar grain size distribution data and methods AN - 925710268; 2012-027352 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Fruland, R M AU - Cooper, B L AU - Gonzalez, C P AU - McKay, D S AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1587 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - granulometry KW - technology KW - laser methods KW - Moon KW - grain size KW - laser diffraction KW - Apollo Program KW - size distribution KW - Sample 64501 KW - sieving KW - Apollo 11 KW - Sample 70161 KW - regolith KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925710268?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=New+technology%2Fold+technology%3B+comparing+lunar+grain+size+distribution+data+and+methods&rft.au=Fruland%2C+R+M%3BCooper%2C+B+L%3BGonzalez%2C+C+P%3BMcKay%2C+D+S%3BAnonymous&rft.aulast=Fruland&rft.aufirst=R&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1587.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 27, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Apollo 11; Apollo Program; grain size; granulometry; laser diffraction; laser methods; lunar soils; Moon; regolith; Sample 64501; Sample 70161; sieving; size distribution; technology ER - TY - JOUR T1 - Mimas between 0.35-05.1 microns from Cassini VIMS observations AN - 925708042; 2012-027618 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Buratti, Bonnie J AU - Brown, R H AU - Clark, R N AU - Mosher, J A AU - Cruikshank, D P AU - Filacchione, G AU - Baines, K H AU - Nicholson, P D AU - Sotin, C AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1634 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - solar phase angles KW - albedo KW - icy satellites KW - plumes KW - thermal inertia KW - density KW - optical spectra KW - grain size KW - thermal properties KW - solar phase curve KW - infrared spectra KW - models KW - planetary rings KW - Cassini-Huygens Mission KW - mosaics KW - ice KW - spectra KW - satellites KW - visual and infrared mapping spectrometer KW - regolith KW - particles KW - Mimas Satellite KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925708042?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Mimas+between+0.35-05.1+microns+from+Cassini+VIMS+observations&rft.au=Buratti%2C+Bonnie+J%3BBrown%2C+R+H%3BClark%2C+R+N%3BMosher%2C+J+A%3BCruikshank%2C+D+P%3BFilacchione%2C+G%3BBaines%2C+K+H%3BNicholson%2C+P+D%3BSotin%2C+C%3BAnonymous&rft.aulast=Buratti&rft.aufirst=Bonnie&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1634.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Accessed on Oct. 19, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - albedo; Cassini-Huygens Mission; density; grain size; ice; icy satellites; infrared spectra; Mimas Satellite; models; mosaics; optical spectra; particles; planetary rings; plumes; regolith; satellites; solar phase angles; solar phase curve; spectra; thermal inertia; thermal properties; visual and infrared mapping spectrometer ER - TY - JOUR T1 - Could lunar polar ice be a "fountain" source for the dayside water veneer? AN - 925707938; 2012-027610 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Farrell, William M AU - Killen, R M AU - Vondrak, R R AU - Hurley, D M AU - Stubbs, T J AU - Delory, G T AU - Halekas, J S AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1770 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - water KW - desorption KW - irradiation KW - dissociation KW - Moon KW - solar wind KW - impacts KW - ions KW - ejecta KW - burial KW - polar caps KW - micrometeorites KW - meteorites KW - hydroxyl ion KW - ice KW - latitude KW - regolith KW - electrons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925707938?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Could+lunar+polar+ice+be+a+%22fountain%22+source+for+the+dayside+water+veneer%3F&rft.au=Farrell%2C+William+M%3BKillen%2C+R+M%3BVondrak%2C+R+R%3BHurley%2C+D+M%3BStubbs%2C+T+J%3BDelory%2C+G+T%3BHalekas%2C+J+S%3BAnonymous&rft.aulast=Farrell&rft.aufirst=William&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1770.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 18, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - burial; desorption; dissociation; ejecta; electrons; hydroxyl ion; ice; impacts; ions; irradiation; latitude; meteorites; micrometeorites; Moon; polar caps; regolith; solar wind; water ER - TY - JOUR T1 - Extraterrestrial amino acids in ureilites including Almahata Sitta AN - 925707885; 2012-027523 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Burton, Aaron S AU - Glavin, D P AU - Callahan, M P AU - Dworkin, J P AU - Jenniskens, P AU - Shaddad, M H AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2815 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - liquid chromatography KW - chromatography KW - stony meteorites KW - ALHA 77257 KW - parent bodies KW - mass spectra KW - ureilite KW - achondrites KW - meteorites KW - organic compounds KW - organic acids KW - Allan Hills Meteorites KW - time-of-flight mass spectra KW - amino acids KW - ultraviolet fluorescence KW - Almahata Sitta Meteorite KW - spectra KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925707885?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Extraterrestrial+amino+acids+in+ureilites+including+Almahata+Sitta&rft.au=Burton%2C+Aaron+S%3BGlavin%2C+D+P%3BCallahan%2C+M+P%3BDworkin%2C+J+P%3BJenniskens%2C+P%3BShaddad%2C+M+H%3BAnonymous&rft.aulast=Burton&rft.aufirst=Aaron&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2815.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 1 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 12, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; ALHA 77257; Allan Hills Meteorites; Almahata Sitta Meteorite; amino acids; chromatography; liquid chromatography; mass spectra; meteorites; organic acids; organic compounds; parent bodies; spectra; stony meteorites; time-of-flight mass spectra; ultraviolet fluorescence; ureilite ER - TY - JOUR T1 - Citric acid, pyruvic acid, homologs, and related compounds in carbonaceous meteorites AN - 925707865; 2012-027521 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cooper, George AU - Reed, C AU - Nguyen, D AU - Carter, M AU - Wang, Y AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1279 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - stony meteorites KW - gas chromatograms KW - ALH 83102 KW - mass spectra KW - citric acid KW - Murray Meteorite KW - Murchison Meteorite KW - pyruvic acid KW - meteorites KW - isomers KW - chemical reactions KW - keto acids KW - carboxylic acids KW - spectra KW - pyruvate KW - chondrites KW - pH KW - experimental studies KW - metabolism KW - parent bodies KW - oxidation KW - carbonaceous chondrites KW - aqueous alteration KW - organic compounds KW - organic acids KW - Allan Hills Meteorites KW - comets KW - chromatograms KW - homology KW - CM chondrites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925707865?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Citric+acid%2C+pyruvic+acid%2C+homologs%2C+and+related+compounds+in+carbonaceous+meteorites&rft.au=Cooper%2C+George%3BReed%2C+C%3BNguyen%2C+D%3BCarter%2C+M%3BWang%2C+Y%3BAnonymous&rft.aulast=Cooper&rft.aufirst=George&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1446.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 12, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - ALH 83102; Allan Hills Meteorites; aqueous alteration; carbonaceous chondrites; carboxylic acids; chemical reactions; chondrites; chromatograms; citric acid; CM chondrites; comets; experimental studies; gas chromatograms; homology; isomers; keto acids; mass spectra; metabolism; meteorites; Murchison Meteorite; Murray Meteorite; organic acids; organic compounds; oxidation; parent bodies; pH; pyruvate; pyruvic acid; spectra; stony meteorites ER - TY - JOUR T1 - First lunar occurrence of keiviite-(Y) in troctolitic anorthosite 76335 AN - 925707636; 2012-027409 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Carpenter, Paul AU - Edmunson, J AU - Cohen, B A AU - Zeigler, R A AU - Jolliff, B L AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2767 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - sorosilicates KW - silicates KW - igneous rocks KW - keiviite KW - metasomatism KW - electron probe data KW - plutonic rocks KW - mineral composition KW - thortveitite group KW - orthosilicates KW - rare earths KW - Moon KW - yttrialite KW - phosphates KW - anorthosite KW - merrillite KW - lunar samples KW - troctolite KW - metals KW - identification KW - petrography KW - gabbros KW - Sample 76335 KW - yttrium KW - formula KW - 01B:Mineralogy of silicates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925707636?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=First+lunar+occurrence+of+keiviite-%28Y%29+in+troctolitic+anorthosite+76335&rft.au=Carpenter%2C+Paul%3BEdmunson%2C+J%3BCohen%2C+B+A%3BZeigler%2C+R+A%3BJolliff%2C+B+L%3BAnonymous&rft.aulast=Carpenter&rft.aufirst=Paul&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2767.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Nov. 8, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - anorthosite; electron probe data; formula; gabbros; identification; igneous rocks; keiviite; lunar samples; merrillite; metals; metasomatism; mineral composition; Moon; orthosilicates; petrography; phosphates; plutonic rocks; rare earths; Sample 76335; silicates; sorosilicates; thortveitite group; troctolite; yttrialite; yttrium ER - TY - JOUR T1 - Did meteorite bombardment sample deep lunar crust? Major and trace element compositions of granulite clasts in lunar regolith breccia MAC 88104 AN - 925707611; 2012-027407 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Braun, S A AU - Brandon, A D AU - Joy, K H AU - Kring, D A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2762 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - stony meteorites KW - ferroan anorthosite KW - mass spectra KW - MAC 88104 KW - lunar breccia KW - granulites KW - electron probe data KW - meteorites KW - pyroxene group KW - mineral composition KW - major elements KW - metamorphic rocks KW - framework silicates KW - spectra KW - rare earths KW - trace elements KW - chain silicates KW - plagioclase KW - breccia KW - impactites KW - Moon KW - FAN suite KW - impact breccia KW - clasts KW - MacAlpine Hills Meteorites KW - achondrites KW - depth KW - ICP mass spectra KW - provenance KW - metals KW - lunar crust KW - feldspar group KW - regolith KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925707611?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Did+meteorite+bombardment+sample+deep+lunar+crust%3F+Major+and+trace+element+compositions+of+granulite+clasts+in+lunar+regolith+breccia+MAC+88104&rft.au=Braun%2C+S+A%3BBrandon%2C+A+D%3BJoy%2C+K+H%3BKring%2C+D+A%3BAnonymous&rft.aulast=Braun&rft.aufirst=S&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2762.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 8, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; breccia; chain silicates; clasts; depth; electron probe data; FAN suite; feldspar group; ferroan anorthosite; framework silicates; granulites; ICP mass spectra; impact breccia; impactites; lunar breccia; lunar crust; MAC 88104; MacAlpine Hills Meteorites; major elements; mass spectra; metals; metamorphic rocks; meteorites; mineral composition; Moon; plagioclase; provenance; pyroxene group; rare earths; regolith; silicates; spectra; stony meteorites; trace elements ER - TY - JOUR T1 - K-Ca and Rb-Sr dating of lunar granite 14321 revisited AN - 925707589; 2012-027405 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Simon, Justin I AU - Shih, C Y AU - Nyquist, L E AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2754 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - calcium KW - isotopes KW - igneous rocks KW - granites KW - thermal ionization mass spectra KW - mass spectra KW - stable isotopes KW - Rb/Sr KW - plutonic rocks KW - dates KW - absolute age KW - spectra KW - alkaline earth metals KW - Moon KW - K/Ca KW - isotope ratios KW - isochrons KW - Sr-87/Sr-86 KW - Sample 14321 KW - lunar samples KW - Ca-44/Ca-40 KW - metals KW - lunar crust KW - strontium KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925707589?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=K-Ca+and+Rb-Sr+dating+of+lunar+granite+14321+revisited&rft.au=Simon%2C+Justin+I%3BShih%2C+C+Y%3BNyquist%2C+L+E%3BAnonymous&rft.aulast=Simon&rft.aufirst=Justin&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2754.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 8, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - absolute age; alkaline earth metals; Ca-44/Ca-40; calcium; dates; granites; igneous rocks; isochrons; isotope ratios; isotopes; K/Ca; lunar crust; lunar samples; mass spectra; metals; Moon; plutonic rocks; Rb/Sr; Sample 14321; spectra; Sr-87/Sr-86; stable isotopes; strontium; thermal ionization mass spectra ER - TY - JOUR T1 - Precise reflectance spectra of ordinary chondrites in the visible and UV; exploring the variability of S-class asteroidal spectra AN - 925707555; 2012-027338 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Trigo-Rodriguez, J M AU - Llorca, J AU - Madiedo, J M AU - Rivkin, A S AU - de Leon, J AU - Pinilla-Alonso, N AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1795 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - ordinary chondrites KW - Gold Basin Meteorite KW - stony meteorites KW - asteroids KW - optical spectra KW - grain size KW - H chondrites KW - L chondrites KW - Gao Guenie Meteorite KW - meteorites KW - Olmedilla de Alarcon Meteorite KW - ultraviolet spectra KW - S-type asteroids KW - spectra KW - Nulles Meteorite KW - chondrites KW - reflectance KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925707555?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Precise+reflectance+spectra+of+ordinary+chondrites+in+the+visible+and+UV%3B+exploring+the+variability+of+S-class+asteroidal+spectra&rft.au=Trigo-Rodriguez%2C+J+M%3BLlorca%2C+J%3BMadiedo%2C+J+M%3BRivkin%2C+A+S%3Bde+Leon%2C+J%3BPinilla-Alonso%2C+N%3BAnonymous&rft.aulast=Trigo-Rodriguez&rft.aufirst=J&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1795.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Sept. 27, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - asteroids; chondrites; Gao Guenie Meteorite; Gold Basin Meteorite; grain size; H chondrites; L chondrites; meteorites; Nulles Meteorite; Olmedilla de Alarcon Meteorite; optical spectra; ordinary chondrites; reflectance; S-type asteroids; spectra; stony meteorites; ultraviolet spectra ER - TY - JOUR T1 - A lunar analogue mission; sample return to the South Pole-Aitken Basin AN - 925707515; 2012-025564 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Marion, C AU - Osinski, G R AU - Antonenko, I AU - Barfoot, T AU - Battler, M AU - Beauchamp, M AU - Cloutis, E A AU - Cupelli, L AU - Chanou, A AU - Daly, M AU - Ferriere, L AU - Flemming, R AU - Francis, R AU - Ghafoor, N AU - Grieve, R A F AU - Hodges, Kip V AU - Hussain, M AU - Jolliff, B L AU - Mader, M M AU - McCullough, E AU - Otto, C AU - Preston, L AU - Redman, D AU - Shankar, B AU - Singleton, A AU - Stooke, P AU - Sylvester, P AU - Tornabene, L L AU - Unrau, T AU - Veillette, D AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2515 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - cratering KW - resources KW - Labrador KW - impact features KW - sample return KW - Newfoundland and Labrador KW - mapping KW - terrestrial analogs KW - lunar craters KW - exploration KW - sampling KW - ice KW - basins KW - framework silicates KW - water KW - polar regions KW - Moon KW - lunar analogs KW - South Pole-Aitken Basin KW - Mistastin Lake KW - Canada KW - robotics KW - impact craters KW - Eastern Canada KW - feldspar group KW - field studies KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925707515?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=A+lunar+analogue+mission%3B+sample+return+to+the+South+Pole-Aitken+Basin&rft.au=Marion%2C+C%3BOsinski%2C+G+R%3BAntonenko%2C+I%3BBarfoot%2C+T%3BBattler%2C+M%3BBeauchamp%2C+M%3BCloutis%2C+E+A%3BCupelli%2C+L%3BChanou%2C+A%3BDaly%2C+M%3BFerriere%2C+L%3BFlemming%2C+R%3BFrancis%2C+R%3BGhafoor%2C+N%3BGrieve%2C+R+A+F%3BHodges%2C+Kip+V%3BHussain%2C+M%3BJolliff%2C+B+L%3BMader%2C+M+M%3BMcCullough%2C+E%3BOtto%2C+C%3BPreston%2C+L%3BRedman%2C+D%3BShankar%2C+B%3BSingleton%2C+A%3BStooke%2C+P%3BSylvester%2C+P%3BTornabene%2C+L+L%3BUnrau%2C+T%3BVeillette%2C+D%3BAnonymous&rft.aulast=Marion&rft.aufirst=C&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2515.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 4, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - basins; Canada; cratering; Eastern Canada; exploration; feldspar group; field studies; framework silicates; ice; impact craters; impact features; Labrador; lunar analogs; lunar craters; mapping; Mistastin Lake; Moon; Newfoundland and Labrador; polar regions; resources; robotics; sample return; sampling; silicates; South Pole-Aitken Basin; terrestrial analogs; water ER - TY - JOUR T1 - Mono Lake analog Mars sample return expedition for AMASE AN - 925707451; 2012-025560 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Conrad, P G AU - Steele, A AU - Younse, P AU - DiCicco, M AU - Morgan, A R AU - Backes, P AU - Eigenbrode, J E AU - Marquardt, D AU - Amundsen, H E F AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2218 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - United States KW - silicates KW - imagery KW - volcanic rocks KW - igneous rocks KW - sample return KW - Mars KW - cores KW - temperature KW - dolomite KW - California KW - sedimentary rocks KW - Arctic Mars Analog Svalbard Expeditions KW - sampling KW - basalts KW - alkalinity KW - sedimentary structures KW - cross-bedding KW - chemically precipitated rocks KW - sulfates KW - Mono County California KW - AMASE KW - rovers KW - evaporites KW - weathering KW - clay minerals KW - terrestrial planets KW - planets KW - planar bedding structures KW - expeditions KW - Mono Lake KW - tufa KW - sheet silicates KW - robotics KW - carbonates KW - Mars analogs KW - instruments KW - field studies KW - facies KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925707451?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Mono+Lake+analog+Mars+sample+return+expedition+for+AMASE&rft.au=Conrad%2C+P+G%3BSteele%2C+A%3BYounse%2C+P%3BDiCicco%2C+M%3BMorgan%2C+A+R%3BBackes%2C+P%3BEigenbrode%2C+J+E%3BMarquardt%2C+D%3BAmundsen%2C+H+E+F%3BAnonymous&rft.aulast=Conrad&rft.aufirst=P&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2218.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 3, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkalinity; AMASE; Arctic Mars Analog Svalbard Expeditions; basalts; California; carbonates; chemically precipitated rocks; clay minerals; cores; cross-bedding; dolomite; evaporites; expeditions; facies; field studies; igneous rocks; imagery; instruments; Mars; Mars analogs; Mono County California; Mono Lake; planar bedding structures; planets; robotics; rovers; sample return; sampling; sedimentary rocks; sedimentary structures; sheet silicates; silicates; sulfates; temperature; terrestrial planets; tufa; United States; volcanic rocks; weathering ER - TY - JOUR T1 - Correlated microanalysis of cometary organic grains returned by Stardust AN - 925707428; 2012-027586 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - De Gregorio, Bradley T AU - Stroud, R M AU - Nittler, L R AU - Cody, G D AU - Kilcoyne, A L D AU - Wirick, S AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2603 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - alteration KW - ion probe data KW - isotopes KW - aliphatic hydrocarbons KW - mass spectra KW - scanning transmission X-ray microscopy KW - stable isotopes KW - nitrogen KW - XANES spectra KW - Wild 2 Comet KW - spectra KW - deuterium KW - carbonaceous composition KW - Stardust Mission KW - N-15 KW - X-ray spectra KW - TEM data KW - organic compounds KW - insoluble organic matter KW - comets KW - hydrogen KW - hydrocarbons KW - heating KW - aerogel KW - NanoSIMS KW - aromatic hydrocarbons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925707428?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Correlated+microanalysis+of+cometary+organic+grains+returned+by+Stardust&rft.au=De+Gregorio%2C+Bradley+T%3BStroud%2C+R+M%3BNittler%2C+L+R%3BCody%2C+G+D%3BKilcoyne%2C+A+L+D%3BWirick%2C+S%3BAnonymous&rft.aulast=De+Gregorio&rft.aufirst=Bradley&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2640.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 17, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aerogel; aliphatic hydrocarbons; alteration; aromatic hydrocarbons; carbonaceous composition; comets; deuterium; heating; hydrocarbons; hydrogen; insoluble organic matter; ion probe data; isotopes; mass spectra; N-15; NanoSIMS; nitrogen; organic compounds; scanning transmission X-ray microscopy; spectra; stable isotopes; Stardust Mission; TEM data; Wild 2 Comet; X-ray spectra; XANES spectra ER - TY - JOUR T1 - The Ganymede Interior Structure, and Magnetosphere Observer (GISMO) mission concept AN - 925707408; 2012-025539 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lynch, K L AU - Smith, I B AU - Singer, K N AU - Vogt, M F AU - Blackburn, D G AU - Chaffin, M AU - Choukroun, M AU - Ehsan, N AU - DiBraccio, G A AU - Gibbons, L J AU - Gleeson, D F AU - Jones, B A AU - LeGall, A AU - McEnulty, T AU - Rampe, E AU - Schrader, C AU - Seward, L AU - Tsang, C C C AU - Williamson, P AU - Castillo, J AU - Budney, C AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2364 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - icy satellites KW - imagery KW - GISMO Mission KW - orbits KW - Jupiter KW - Ganymede Satellite KW - mapping KW - Galilean satellites KW - magnetometers KW - magnetic field KW - giant planets KW - Ganymede Interior Structure, and Magnetosphere Observer KW - flybys KW - outer planets KW - satellites KW - cameras KW - trajectories KW - radar methods KW - atmosphere KW - cost KW - planets KW - objectives KW - sounding KW - planetary interiors KW - spectroscopy KW - instruments KW - design KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925707408?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+Ganymede+Interior+Structure%2C+and+Magnetosphere+Observer+%28GISMO%29+mission+concept&rft.au=Lynch%2C+K+L%3BSmith%2C+I+B%3BSinger%2C+K+N%3BVogt%2C+M+F%3BBlackburn%2C+D+G%3BChaffin%2C+M%3BChoukroun%2C+M%3BEhsan%2C+N%3BDiBraccio%2C+G+A%3BGibbons%2C+L+J%3BGleeson%2C+D+F%3BJones%2C+B+A%3BLeGall%2C+A%3BMcEnulty%2C+T%3BRampe%2C+E%3BSchrader%2C+C%3BSeward%2C+L%3BTsang%2C+C+C+C%3BWilliamson%2C+P%3BCastillo%2C+J%3BBudney%2C+C%3BAnonymous&rft.aulast=Lynch&rft.aufirst=K&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2364.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 30, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; cameras; cost; design; flybys; Galilean satellites; Ganymede Interior Structure, and Magnetosphere Observer; Ganymede Satellite; giant planets; GISMO Mission; icy satellites; imagery; instruments; Jupiter; magnetic field; magnetometers; mapping; objectives; orbits; outer planets; planetary interiors; planets; radar methods; satellites; sounding; spectroscopy; trajectories ER - TY - JOUR T1 - The case for in situ exploration of volatile deposits at the lunar poles AN - 925707348; 2012-025527 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cohen, Barbara A AU - Jolliff, B L AU - Bierhaus, E B AU - Clark, B C AU - Clegg, S M AU - Elphic, R C AU - Glavin, D P AU - Hagerty, J J AU - Lawrence, D J AU - Mahaffy, P R AU - Wang, A AU - Wiens, R C AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1425 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Lunar Crater Observation and Sensing Satellite KW - hydrates KW - Cabeus Crater KW - lunar craters KW - exploration KW - ice KW - permanently shadowed regions KW - orbital observations KW - water KW - solar system KW - polar regions KW - in situ KW - Moon KW - impacts KW - cost KW - LCROSS Mission KW - Earth-Moon couple KW - volatiles KW - neutron probe KW - hydrogen KW - Lunar Polar Volatiles Explorer KW - regolith KW - instruments KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925707348?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+case+for+in+situ+exploration+of+volatile+deposits+at+the+lunar+poles&rft.au=Cohen%2C+Barbara+A%3BJolliff%2C+B+L%3BBierhaus%2C+E+B%3BClark%2C+B+C%3BClegg%2C+S+M%3BElphic%2C+R+C%3BGlavin%2C+D+P%3BHagerty%2C+J+J%3BLawrence%2C+D+J%3BMahaffy%2C+P+R%3BWang%2C+A%3BWiens%2C+R+C%3BAnonymous&rft.aulast=Cohen&rft.aufirst=Barbara&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1425.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 20 N1 - PubXState - TX N1 - SuppNotes - Accessed on Sept. 30, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Cabeus Crater; cost; Earth-Moon couple; exploration; hydrates; hydrogen; ice; impacts; in situ; instruments; LCROSS Mission; Lunar Crater Observation and Sensing Satellite; lunar craters; Lunar Polar Volatiles Explorer; Moon; neutron probe; orbital observations; permanently shadowed regions; polar regions; regolith; remote sensing; solar system; volatiles; water ER - TY - JOUR T1 - The spectral properties of Ina; new observations from the Moon Mineralogy Mapper AN - 925707340; 2012-027398 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Staid, M AU - Isaacson, Peter J AU - Petro, N E AU - Boardman, J AU - Pieters, C M AU - Head, J W AU - Sunshine, J AU - Donaldson Hanna, K AU - Taylor, Lawrence A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2499 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Lunar Orbiter Laser Altimeter KW - volcanic rocks KW - Moon KW - igneous rocks KW - Chandrayaan-1 Mission KW - Mare Serenitatis KW - Ina Crater KW - morphology KW - topography KW - Mare Tranquillitatis KW - craters KW - Moon Mineralogy Mapper KW - basalts KW - surface features KW - depressions KW - reflectance KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925707340?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+spectral+properties+of+Ina%3B+new+observations+from+the+Moon+Mineralogy+Mapper&rft.au=Staid%2C+M%3BIsaacson%2C+Peter+J%3BPetro%2C+N+E%3BBoardman%2C+J%3BPieters%2C+C+M%3BHead%2C+J+W%3BSunshine%2C+J%3BDonaldson+Hanna%2C+K%3BTaylor%2C+Lawrence+A%3BAnonymous&rft.aulast=Staid&rft.aufirst=M&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2499.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 8, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - basalts; Chandrayaan-1 Mission; craters; depressions; igneous rocks; Ina Crater; Lunar Orbiter Laser Altimeter; Mare Serenitatis; Mare Tranquillitatis; Moon; Moon Mineralogy Mapper; morphology; reflectance; surface features; topography; volcanic rocks ER - TY - JOUR T1 - Further development of small robotic landers for planetary missions AN - 925707335; 2012-025526 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cohen, Barbara A AU - Bassler, J A AU - Chavers, D G AU - Eng, D S AU - Hammond, M S AU - Harris, D W AU - Hill, L D AU - Holloway, T A AU - Kubota, S AU - Morse, B J AU - Mulac, B D AU - Reed, C L B AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2201 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - development KW - asteroids KW - near-Earth asteroids KW - feasibility studies KW - future KW - Mercury Planet KW - polar regions KW - landers KW - risk management KW - near-Earth objects KW - Moon KW - cost KW - concepts KW - terrestrial planets KW - planets KW - volatiles KW - objectives KW - hydrogen KW - Lunar Polar Volatiles Explorer KW - testing KW - robotics KW - regolith KW - instruments KW - design KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925707335?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Further+development+of+small+robotic+landers+for+planetary+missions&rft.au=Cohen%2C+Barbara+A%3BBassler%2C+J+A%3BChavers%2C+D+G%3BEng%2C+D+S%3BHammond%2C+M+S%3BHarris%2C+D+W%3BHill%2C+L+D%3BHolloway%2C+T+A%3BKubota%2C+S%3BMorse%2C+B+J%3BMulac%2C+B+D%3BReed%2C+C+L+B%3BAnonymous&rft.aulast=Cohen&rft.aufirst=Barbara&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2201.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 2 N1 - PubXState - TX N1 - SuppNotes - Accessed on Sept. 30, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - asteroids; concepts; cost; design; development; feasibility studies; future; hydrogen; instruments; landers; Lunar Polar Volatiles Explorer; Mercury Planet; Moon; near-Earth asteroids; near-Earth objects; objectives; planets; polar regions; regolith; risk management; robotics; terrestrial planets; testing; volatiles ER - TY - JOUR T1 - NASA Desert RATS 2010; preliminary results for science operations conducted in the San Francisco volcanic field, Arizona AN - 925706947; 2012-025546 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Gruener, John E AU - Lofgren, Gary E AU - Bluethmann, W J AU - Bell, E R AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1499 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - United States KW - lava flows KW - Moon KW - government agencies KW - Mars KW - science operations KW - rovers KW - cinder cones KW - simulation KW - Desert Research and Technology Studies KW - exploration KW - terrestrial planets KW - planets KW - laboratory studies KW - volcanic features KW - sampling KW - San Francisco Peaks KW - NASA KW - Arizona KW - human exploration KW - extravehicular activity KW - field studies KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925706947?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=NASA+Desert+RATS+2010%3B+preliminary+results+for+science+operations+conducted+in+the+San+Francisco+volcanic+field%2C+Arizona&rft.au=Gruener%2C+John+E%3BLofgren%2C+Gary+E%3BBluethmann%2C+W+J%3BBell%2C+E+R%3BAnonymous&rft.aulast=Gruener&rft.aufirst=John&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1499.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - SuppNotes - Accessed on Sept. 30, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Arizona; cinder cones; Desert Research and Technology Studies; exploration; extravehicular activity; field studies; government agencies; human exploration; laboratory studies; lava flows; Mars; Moon; NASA; planets; rovers; sampling; San Francisco Peaks; science operations; simulation; terrestrial planets; United States; volcanic features ER - TY - JOUR T1 - Science operations development for field analogs; lessons learned from the 2010 Desert Research and Technology Test AN - 925706932; 2012-025545 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Eppler, Dean B AU - Ming, Doug W AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1831 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - United States KW - Strategic Science Operations Team KW - development KW - communications KW - science operations KW - rovers KW - Desert Research and Technology Studies KW - planets KW - Tactical Science Operations Team KW - San Francisco Peaks KW - Arizona KW - extravehicular activity KW - field studies KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925706932?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Science+operations+development+for+field+analogs%3B+lessons+learned+from+the+2010+Desert+Research+and+Technology+Test&rft.au=Eppler%2C+Dean+B%3BMing%2C+Doug+W%3BAnonymous&rft.aulast=Eppler&rft.aufirst=Dean&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1831.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 2 N1 - PubXState - TX N1 - SuppNotes - Accessed on Sept. 30, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Arizona; communications; Desert Research and Technology Studies; development; extravehicular activity; field studies; planets; rovers; San Francisco Peaks; science operations; Strategic Science Operations Team; Tactical Science Operations Team; United States ER - TY - JOUR T1 - Planetary surface science operations for human missions; the 2010 Desert Research and Technology Study AN - 925706920; 2012-025544 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Eppler, Dean B AU - Ming, Doug W AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1811 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - United States KW - Strategic Science Operations Team KW - programs KW - communications KW - geotraverses KW - rovers KW - simulation KW - Desert Research and Technology Studies KW - exploration KW - planets KW - Tactical Science Operations Team KW - planning KW - San Francisco Peaks KW - Arizona KW - testing KW - human exploration KW - extravehicular activity KW - field studies KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925706920?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Planetary+surface+science+operations+for+human+missions%3B+the+2010+Desert+Research+and+Technology+Study&rft.au=Eppler%2C+Dean+B%3BMing%2C+Doug+W%3BAnonymous&rft.aulast=Eppler&rft.aufirst=Dean&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1811.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - SuppNotes - Accessed on Sept. 30, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Arizona; communications; Desert Research and Technology Studies; exploration; extravehicular activity; field studies; geotraverses; human exploration; planets; planning; programs; rovers; San Francisco Peaks; simulation; Strategic Science Operations Team; Tactical Science Operations Team; testing; United States ER - TY - JOUR T1 - The role of the spacecraft operator in scientific exploration AN - 925706911; 2012-025543 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Love, Stanley G AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1139 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - astronauts KW - expeditions KW - communications KW - geotraverses KW - rovers KW - human exploration KW - concepts KW - terrestrial analogs KW - Desert Research and Technology Studies KW - operational thinking KW - exploration KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925706911?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+role+of+the+spacecraft+operator+in+scientific+exploration&rft.au=Love%2C+Stanley+G%3BAnonymous&rft.aulast=Love&rft.aufirst=Stanley&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1139.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - SuppNotes - Accessed on Sept. 30, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - astronauts; communications; concepts; Desert Research and Technology Studies; expeditions; exploration; geotraverses; human exploration; operational thinking; rovers; terrestrial analogs ER - TY - JOUR T1 - Three-dimensional structures of particles recovered from the asteroid Itokawa by the Hayabusa Mission and a role of X-ray microtomography in the preliminary examination AN - 925705732; 2012-027530 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Tsuchiyama, Akira AU - Uesugi, M AU - Uesugi, K AU - Nakano, T AU - Nakamura, T AU - Noguchi, T AU - Noguchi, R AU - Matsumoto, T AU - Matsuno, J AU - Nagano, T AU - Takeuchi, A AU - Suzuki, Y AU - Ebihara, M AU - Ireland, T R AU - Kitajima, F AU - Nagao, K AU - Naraoka, H AU - Okazaki, R AU - Sandford, S A AU - Yurimoto, H AU - Zolensky, M E AU - Fujimura, A AU - Abe, M AU - Yada, T AU - Mukai, T AU - Kawaguchi, J AU - Yoshikawa, M AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1777 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - tomography KW - near-infrared spectra KW - ordinary chondrites KW - Itokawa Asteroid KW - stony meteorites KW - asteroids KW - three-dimensional models KW - microstructure KW - LL chondrites KW - X-ray microtomography KW - samples KW - meteorites KW - curation KW - computed tomography KW - Hayabusa Mission KW - preliminary examination KW - X-ray analysis KW - S-type asteroids KW - spectra KW - chondrites KW - regolith KW - particles KW - non-destructive analysis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925705732?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Three-dimensional+structures+of+particles+recovered+from+the+asteroid+Itokawa+by+the+Hayabusa+Mission+and+a+role+of+X-ray+microtomography+in+the+preliminary+examination&rft.au=Tsuchiyama%2C+Akira%3BUesugi%2C+M%3BUesugi%2C+K%3BNakano%2C+T%3BNakamura%2C+T%3BNoguchi%2C+T%3BNoguchi%2C+R%3BMatsumoto%2C+T%3BMatsuno%2C+J%3BNagano%2C+T%3BTakeuchi%2C+A%3BSuzuki%2C+Y%3BEbihara%2C+M%3BIreland%2C+T+R%3BKitajima%2C+F%3BNagao%2C+K%3BNaraoka%2C+H%3BOkazaki%2C+R%3BSandford%2C+S+A%3BYurimoto%2C+H%3BZolensky%2C+M+E%3BFujimura%2C+A%3BAbe%2C+M%3BYada%2C+T%3BMukai%2C+T%3BKawaguchi%2C+J%3BYoshikawa%2C+M%3BAnonymous&rft.aulast=Tsuchiyama&rft.aufirst=Akira&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1777.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - SuppNotes - Accessed on Oct. 12, 2011 N1 - Last updated - 2014-03-14 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - asteroids; chondrites; computed tomography; curation; Hayabusa Mission; Itokawa Asteroid; LL chondrites; meteorites; microstructure; near-infrared spectra; non-destructive analysis; ordinary chondrites; particles; preliminary examination; regolith; S-type asteroids; samples; spectra; stony meteorites; three-dimensional models; tomography; X-ray analysis; X-ray microtomography ER - TY - JOUR T1 - A radar survey of lunar dome fields AN - 925705564; 2012-027394 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Carter, Lynn M AU - Campbell, Bruce A AU - Hawke, B Ray AU - Bussey, Ben AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1937 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - imagery KW - Moon KW - Lunar Reconnaissance Orbiter KW - viscous materials KW - circular polarization ratio KW - radar methods KW - Hortensius Domes KW - morphology KW - volcanic features KW - Marius Hills KW - surveys KW - domes KW - Hortensius Crater KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925705564?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=A+radar+survey+of+lunar+dome+fields&rft.au=Carter%2C+Lynn+M%3BCampbell%2C+Bruce+A%3BHawke%2C+B+Ray%3BBussey%2C+Ben%3BAnonymous&rft.aulast=Carter&rft.aufirst=Lynn&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1937.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 8, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - circular polarization ratio; domes; Hortensius Crater; Hortensius Domes; imagery; Lunar Reconnaissance Orbiter; Marius Hills; Moon; morphology; radar methods; surveys; viscous materials; volcanic features ER - TY - JOUR T1 - Swift observations of the ejecta of Asteroid 596 Scheila AN - 925705169; 2012-027487 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bodewits, D AU - Kelley, M S AU - Li, J Y AU - Landsman, W B AU - A'Hearn, M F AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract no. 1462 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - T-type asteroids KW - asteroids KW - telescope methods KW - clastic sediments KW - optical spectra KW - Swift Observatory Mission KW - ejecta KW - gases KW - brightness KW - volatiles KW - photometry KW - comets KW - color KW - ice KW - dust KW - sediments KW - velocity KW - ultraviolet spectra KW - Scheila Asteroid KW - spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925705169?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Swift+observations+of+the+ejecta+of+Asteroid+596+Scheila&rft.au=Bodewits%2C+D%3BKelley%2C+M+S%3BLi%2C+J+Y%3BLandsman%2C+W+B%3BA%27Hearn%2C+M+F%3BAnonymous&rft.aulast=Bodewits&rft.aufirst=D&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1462.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 3, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - asteroids; brightness; clastic sediments; color; comets; dust; ejecta; gases; ice; optical spectra; photometry; Scheila Asteroid; sediments; spectra; Swift Observatory Mission; T-type asteroids; telescope methods; ultraviolet spectra; velocity; volatiles ER - TY - JOUR T1 - Desert Research and Technology Studies (D-RATS) 2010 mission overview AN - 925704874; 2012-025542 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Romig, B A AU - Kosmo, J J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2572 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - United States KW - Coconino County Arizona KW - public awareness KW - D-RATS program KW - Flagstaff Arizona KW - geotraverses KW - rovers KW - northern Arizona KW - education KW - simulation KW - deserts KW - Desert Research and Technology Studies KW - exploration KW - planets KW - objectives KW - Arizona KW - Black Point lava flow KW - testing KW - robotics KW - human exploration KW - extravehicular activity KW - field studies KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925704874?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Desert+Research+and+Technology+Studies+%28D-RATS%29+2010+mission+overview&rft.au=Romig%2C+B+A%3BKosmo%2C+J+J%3BAnonymous&rft.aulast=Romig&rft.aufirst=B&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2572.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 30, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Arizona; Black Point lava flow; Coconino County Arizona; D-RATS program; Desert Research and Technology Studies; deserts; education; exploration; extravehicular activity; field studies; Flagstaff Arizona; geotraverses; human exploration; northern Arizona; objectives; planets; public awareness; robotics; rovers; simulation; testing; United States ER - TY - JOUR T1 - Field testing next-generation ground data systems for future missions AN - 925704487; 2012-025551 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Deans, Matthew C AU - Lees, David AU - Smith, Trey AU - Cohen, Tamar AU - Morse, Ted AU - Fong, Terrence AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2765 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - laser methods KW - ground-penetrating radar KW - geotraverses KW - data processing KW - mapping KW - K10 Robot KW - exploration KW - visualization KW - Nunavut KW - data bases KW - Haughton impact structure KW - real-time methods KW - cameras KW - monitoring KW - X-ray fluorescence KW - telemetry KW - radar methods KW - British Columbia KW - Pavilion Lake Research Project KW - Desert Research and Technology Studies KW - Exploration Ground Data System KW - computer programs KW - planets KW - lidar methods KW - Canada KW - planning KW - Western Canada KW - testing KW - field studies KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925704487?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Field+testing+next-generation+ground+data+systems+for+future+missions&rft.au=Deans%2C+Matthew+C%3BLees%2C+David%3BSmith%2C+Trey%3BCohen%2C+Tamar%3BMorse%2C+Ted%3BFong%2C+Terrence%3BAnonymous&rft.aulast=Deans&rft.aufirst=Matthew&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2765.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 3, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - British Columbia; cameras; Canada; computer programs; data bases; data processing; Desert Research and Technology Studies; exploration; Exploration Ground Data System; field studies; geotraverses; ground-penetrating radar; Haughton impact structure; K10 Robot; laser methods; lidar methods; mapping; monitoring; Nunavut; Pavilion Lake Research Project; planets; planning; radar methods; real-time methods; telemetry; testing; visualization; Western Canada; X-ray fluorescence ER - TY - JOUR T1 - Feasibility and definition of a lunar polar volatiles prospecting mission AN - 925703377; 2012-025528 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Beyer, Ross AU - Cockrell, Jim AU - Colaprete, Anthony AU - Fong, Terrence AU - Elphic, Richard AU - Heldmann, Jennifer AU - Pedersen, Liam AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2735 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Lunar Crater Observation and Sensing Satellite KW - Lunar Reconnaissance Orbiter KW - Cabeus Crater KW - mapping KW - landing sites KW - feasibility studies KW - spatial distribution KW - mixing KW - ice KW - solar illumination KW - polar regions KW - Moon KW - Monte Carlo analysis KW - statistical analysis KW - impacts KW - cost KW - LCROSS Mission KW - depth KW - models KW - volatiles KW - objectives KW - hydrogen KW - robotics KW - regolith KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925703377?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Feasibility+and+definition+of+a+lunar+polar+volatiles+prospecting+mission&rft.au=Beyer%2C+Ross%3BCockrell%2C+Jim%3BColaprete%2C+Anthony%3BFong%2C+Terrence%3BElphic%2C+Richard%3BHeldmann%2C+Jennifer%3BPedersen%2C+Liam%3BAnonymous&rft.aulast=Beyer&rft.aufirst=Ross&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2735.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 30, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Cabeus Crater; cost; depth; feasibility studies; hydrogen; ice; impacts; landing sites; LCROSS Mission; Lunar Crater Observation and Sensing Satellite; Lunar Reconnaissance Orbiter; mapping; mixing; models; Monte Carlo analysis; Moon; objectives; polar regions; regolith; remote sensing; robotics; solar illumination; spatial distribution; statistical analysis; volatiles ER - TY - JOUR T1 - Venus pressure chamber; a small testing facility available to the community AN - 925703199; 2012-025488 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Johnson, N M AU - Wegel, D C AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1434 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - sulfur dioxide KW - pressure KW - Venus KW - atmosphere KW - temperature KW - nitrogen KW - gases KW - carbon dioxide KW - terrestrial planets KW - planets KW - carbon monoxide KW - testing KW - pressure chambers KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925703199?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Venus+pressure+chamber%3B+a+small+testing+facility+available+to+the+community&rft.au=Johnson%2C+N+M%3BWegel%2C+D+C%3BAnonymous&rft.aulast=Johnson&rft.aufirst=N&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1434.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 1 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 28, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; carbon dioxide; carbon monoxide; gases; nitrogen; planets; pressure; pressure chambers; sulfur dioxide; temperature; terrestrial planets; testing; Venus ER - TY - JOUR T1 - Mineralogy and major element abundance of the dust particles recovered from Muses-C region on the asteroid Itokawa AN - 925702860; 2012-027529 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nakamura, T AU - Noguchi, T AU - Tanaka, M AU - Zolensky, M E AU - Kimura, M AU - Nakato, A AU - Ogami, T AU - Ishida, H AU - Tsuchiyama, A AU - Yada, T AU - Shirai, K AU - Okazaki, R AU - Fujimura, A AU - Ishibashi, Y AU - Abe, M AU - Okada, T AU - Ueno, M AU - Mukai, T AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1766 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - Muses-C Regio KW - ordinary chondrites KW - stony meteorites KW - asteroids KW - X-ray diffraction data KW - sample return KW - microstructure KW - olivine group KW - meteorites KW - size distribution KW - pyroxene group KW - mineral composition KW - whole rock KW - major elements KW - Hayabusa Mission KW - olivine KW - sediments KW - orthosilicates KW - X-ray fluorescence spectra KW - framework silicates KW - alloys KW - spectra KW - chondrites KW - chemical composition KW - chain silicates KW - Itokawa Asteroid KW - iron-nickel metal KW - clastic sediments KW - grain size KW - LL chondrites KW - weathering KW - nesosilicates KW - space weathering KW - iron sulfides KW - dust KW - petrography KW - sulfides KW - feldspar group KW - particles KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925702860?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Mineralogy+and+major+element+abundance+of+the+dust+particles+recovered+from+Muses-C+region+on+the+asteroid+Itokawa&rft.au=Nakamura%2C+T%3BNoguchi%2C+T%3BTanaka%2C+M%3BZolensky%2C+M+E%3BKimura%2C+M%3BNakato%2C+A%3BOgami%2C+T%3BIshida%2C+H%3BTsuchiyama%2C+A%3BYada%2C+T%3BShirai%2C+K%3BOkazaki%2C+R%3BFujimura%2C+A%3BIshibashi%2C+Y%3BAbe%2C+M%3BOkada%2C+T%3BUeno%2C+M%3BMukai%2C+T%3BAnonymous&rft.aulast=Nakamura&rft.aufirst=T&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1766.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 12, 2011 N1 - Last updated - 2014-03-14 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alloys; asteroids; chain silicates; chemical composition; chondrites; clastic sediments; dust; feldspar group; framework silicates; grain size; Hayabusa Mission; iron sulfides; iron-nickel metal; Itokawa Asteroid; LL chondrites; major elements; meteorites; microstructure; mineral composition; Muses-C Regio; nesosilicates; olivine; olivine group; ordinary chondrites; orthosilicates; particles; petrography; pyroxene group; remote sensing; sample return; sediments; silicates; size distribution; space weathering; spectra; stony meteorites; sulfides; weathering; whole rock; X-ray diffraction data; X-ray fluorescence spectra ER - TY - JOUR T1 - The Arctic Mars Analogue Svalbard Expedition (AMASE) 2010 AN - 925702542; 2012-025556 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Steele, A AU - Amundsen, H E F AU - Fogel, M L AU - Benning, L AU - Schmitz, N AU - Conrad, P G AU - Younse, P AU - Backes, P AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1588 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - stony meteorites KW - Svalbard KW - Martian meteorites KW - sample return KW - aliphatic hydrocarbons KW - astrobiology KW - Mars KW - Knorringfjell fossil methane seep KW - data management KW - meteorites KW - Arctic Mars Analog Svalbard Expeditions KW - sampling KW - Bockfjord volcanic complex KW - ALH 84001 KW - gas seeps KW - methane KW - Arctic region KW - rovers KW - alkanes KW - information management KW - biomarkers KW - achondrites KW - terrestrial planets KW - planets KW - curation KW - organic compounds KW - biogenic processes KW - AMASE 2010 KW - Allan Hills Meteorites KW - Antarctica KW - expeditions KW - hydrocarbons KW - testing KW - robotics KW - carbonates KW - Mars analogs KW - instruments KW - field studies KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925702542?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+Arctic+Mars+Analogue+Svalbard+Expedition+%28AMASE%29+2010&rft.au=Steele%2C+A%3BAmundsen%2C+H+E+F%3BFogel%2C+M+L%3BBenning%2C+L%3BSchmitz%2C+N%3BConrad%2C+P+G%3BYounse%2C+P%3BBackes%2C+P%3BAnonymous&rft.aulast=Steele&rft.aufirst=A&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1588.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 3, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; ALH 84001; aliphatic hydrocarbons; alkanes; Allan Hills Meteorites; AMASE 2010; Antarctica; Arctic Mars Analog Svalbard Expeditions; Arctic region; astrobiology; biogenic processes; biomarkers; Bockfjord volcanic complex; carbonates; curation; data management; expeditions; field studies; gas seeps; hydrocarbons; information management; instruments; Knorringfjell fossil methane seep; Mars; Mars analogs; Martian meteorites; meteorites; methane; organic compounds; planets; robotics; rovers; sample return; sampling; stony meteorites; Svalbard; terrestrial planets; testing ER - TY - JOUR T1 - Desert RATS 2010 operations tests; insights from the geology crew members AN - 925702512; 2012-025554 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bleacher, Jacob E AU - Hurtado, J M, Jr AU - Young, Kelsey E AU - Rice, J AU - Garry, W B AU - Eppler, Dean B AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1774 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - planets KW - sampling KW - communications KW - geotraverses KW - testing KW - rovers KW - extravehicular activity KW - Desert Research and Technology Studies KW - real-time methods KW - field studies KW - exploration KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925702512?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Desert+RATS+2010+operations+tests%3B+insights+from+the+geology+crew+members&rft.au=Bleacher%2C+Jacob+E%3BHurtado%2C+J+M%2C+Jr%3BYoung%2C+Kelsey+E%3BRice%2C+J%3BGarry%2C+W+B%3BEppler%2C+Dean+B%3BAnonymous&rft.aulast=Bleacher&rft.aufirst=Jacob&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1774.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - SuppNotes - Accessed on Oct. 3, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - communications; Desert Research and Technology Studies; exploration; extravehicular activity; field studies; geotraverses; planets; real-time methods; rovers; sampling; testing ER - TY - JOUR T1 - Lessons learned for geologic data collection and sampling; insights from the Desert RATS 2010 geologist crewmembers AN - 925702494; 2012-025553 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Hurtado, J M, Jr AU - Bleacher, Jacob E AU - Rice, J AU - Young, Kelsey E AU - Garry, W B AU - Eppler, Dean B AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1334 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - imagery KW - technology KW - video methods KW - geotraverses KW - decision-making KW - rovers KW - Desert Research and Technology Studies KW - exploration KW - planets KW - objectives KW - sampling KW - planning KW - extravehicular activity KW - instruments KW - real-time methods KW - field studies KW - cameras KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925702494?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Lessons+learned+for+geologic+data+collection+and+sampling%3B+insights+from+the+Desert+RATS+2010+geologist+crewmembers&rft.au=Hurtado%2C+J+M%2C+Jr%3BBleacher%2C+Jacob+E%3BRice%2C+J%3BYoung%2C+Kelsey+E%3BGarry%2C+W+B%3BEppler%2C+Dean+B%3BAnonymous&rft.aulast=Hurtado&rft.aufirst=J&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1334.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - SuppNotes - Accessed on Oct. 3, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - cameras; decision-making; Desert Research and Technology Studies; exploration; extravehicular activity; field studies; geotraverses; imagery; instruments; objectives; planets; planning; real-time methods; rovers; sampling; technology; video methods ER - TY - JOUR T1 - NEEMO, NASA's Extreme Environment Mission Operations; on to a NEO! AN - 925698143; 2012-025574 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bell, Mary S AU - Baskin, P J AU - Todd, W L AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2162 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - United States KW - astronauts KW - asteroids KW - offshore KW - near-Earth asteroids KW - extreme environments KW - communications KW - reefs KW - government agencies KW - Monroe County Florida KW - planetary exploration KW - mapping KW - education KW - simulation KW - Florida KW - Carpenter Basin KW - exploration KW - Key Largo KW - aquanauts KW - NEEMO KW - sampling KW - Aquarius Underwater Laboratory KW - NOAA KW - human exploration KW - Florida Keys KW - near-Earth objects KW - monitoring KW - Moon KW - submarine installations KW - NASA's Extreme Environment Mission Operations KW - curation KW - marine installations KW - navigation KW - NASA KW - testing KW - robotics KW - extravehicular activity KW - Florida Keys National Marine Sanctuary KW - field studies KW - 04:Extraterrestrial geology KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925698143?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=NEEMO%2C+NASA%27s+Extreme+Environment+Mission+Operations%3B+on+to+a+NEO%21&rft.au=Bell%2C+Mary+S%3BBaskin%2C+P+J%3BTodd%2C+W+L%3BAnonymous&rft.aulast=Bell&rft.aufirst=Mary&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2162.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 1 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 4, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aquanauts; Aquarius Underwater Laboratory; asteroids; astronauts; Carpenter Basin; communications; curation; education; exploration; extravehicular activity; extreme environments; field studies; Florida; Florida Keys; Florida Keys National Marine Sanctuary; government agencies; human exploration; Key Largo; mapping; marine installations; monitoring; Monroe County Florida; Moon; NASA; NASA's Extreme Environment Mission Operations; navigation; near-Earth asteroids; near-Earth objects; NEEMO; NOAA; offshore; planetary exploration; reefs; robotics; sampling; simulation; submarine installations; testing; United States ER - TY - JOUR T1 - GeoLab hardware operational testing and evaluation; as integrated into NASA's 2010 Habitat Demonstration Unit 1, Pressurized Excursion Module AN - 925698094; 2012-025550 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Calaway, Michael J AU - Evans, Cindy A AU - Bell, Mary S AU - Graff, Trevor G AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1473 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Habitat Demonstration Unit 1/Pressurized Excursion Module KW - chemical analysis KW - GeoLab KW - X-ray fluorescence KW - government agencies KW - samples KW - Desert Research and Technology Studies KW - glove box KW - evaluation KW - computer programs KW - planets KW - laboratory studies KW - habitat KW - curation KW - sample preparation KW - NASA KW - X-ray analysis KW - testing KW - instruments KW - design KW - cameras KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925698094?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=GeoLab+hardware+operational+testing+and+evaluation%3B+as+integrated+into+NASA%27s+2010+Habitat+Demonstration+Unit+1%2C+Pressurized+Excursion+Module&rft.au=Calaway%2C+Michael+J%3BEvans%2C+Cindy+A%3BBell%2C+Mary+S%3BGraff%2C+Trevor+G%3BAnonymous&rft.aulast=Calaway&rft.aufirst=Michael&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1473.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 3, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - cameras; chemical analysis; computer programs; curation; Desert Research and Technology Studies; design; evaluation; GeoLab; glove box; government agencies; habitat; Habitat Demonstration Unit 1/Pressurized Excursion Module; instruments; laboratory studies; NASA; planets; sample preparation; samples; testing; X-ray analysis; X-ray fluorescence ER - TY - JOUR T1 - GeoLab's first field trials, 2010 Desert RATS; evaluating tools for early sample characterization AN - 925698082; 2012-025549 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Evans, Cindy A AU - Bell, Mary S AU - Calaway, Michael J AU - Graff, Trevor G AU - Young, Kelsey E AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1564 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Habitat Demonstration Unit 1/Pressurized Excursion Module KW - technology KW - GeoLab KW - development KW - X-ray fluorescence KW - sample return KW - government agencies KW - samples KW - Desert Research and Technology Studies KW - glove box KW - exploration KW - planets KW - laboratory studies KW - curation KW - NASA KW - microscope methods KW - X-ray analysis KW - testing KW - instruments KW - cameras KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925698082?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=GeoLab%27s+first+field+trials%2C+2010+Desert+RATS%3B+evaluating+tools+for+early+sample+characterization&rft.au=Evans%2C+Cindy+A%3BBell%2C+Mary+S%3BCalaway%2C+Michael+J%3BGraff%2C+Trevor+G%3BYoung%2C+Kelsey+E%3BAnonymous&rft.aulast=Evans&rft.aufirst=Cindy&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1564.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 3, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - cameras; curation; Desert Research and Technology Studies; development; exploration; GeoLab; glove box; government agencies; Habitat Demonstration Unit 1/Pressurized Excursion Module; instruments; laboratory studies; microscope methods; NASA; planets; sample return; samples; technology; testing; X-ray analysis; X-ray fluorescence ER - TY - JOUR T1 - The traverse planning process for the DRATS 2010 analog field simulations AN - 925698061; 2012-025547 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Hoerz, Friedrich P AU - Gruener, John AU - Lofgren, Gary E AU - Skinner, James A, Jr AU - Graf, Jodi AU - Seibert, Marc AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2054 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - United States KW - imagery KW - astronauts KW - communications KW - geotraverses KW - mapping KW - rovers KW - simulation KW - satellite methods KW - Desert Research and Technology Studies KW - exploration KW - planets KW - objectives KW - planning KW - navigation KW - San Francisco Peaks KW - geologists KW - Arizona KW - extravehicular activity KW - field studies KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925698061?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+traverse+planning+process+for+the+DRATS+2010+analog+field+simulations&rft.au=Hoerz%2C+Friedrich+P%3BGruener%2C+John%3BLofgren%2C+Gary+E%3BSkinner%2C+James+A%2C+Jr%3BGraf%2C+Jodi%3BSeibert%2C+Marc%3BAnonymous&rft.aulast=Hoerz&rft.aufirst=Friedrich&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2054.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - SuppNotes - Accessed on Sept. 30, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Arizona; astronauts; communications; Desert Research and Technology Studies; exploration; extravehicular activity; field studies; geologists; geotraverses; imagery; mapping; navigation; objectives; planets; planning; rovers; San Francisco Peaks; satellite methods; simulation; United States ER - TY - JOUR T1 - Thickness of proximal ejecta from the Orientale Basin from Lunar Orbiter Laser Altimeter (LOLA) data; implications for multi-ring basin formation AN - 921718041; 2012-023892 AB - Quantifying the ejecta distribution around large lunar basins is important to understanding the origin of basin rings, the volume of the transient cavity, the depth of sampling, and the nature of the basin formation processes. We have used newly obtained altimetry data of the Moon from the Lunar Orbiter Laser Altimeter (LOLA) instrument to estimate the thickness of ejecta in the region surrounding the Orientale impact basin, the youngest and best preserved large basin on the Moon. Our measurements yield ejecta thicknesses of approximately 2900 m near the Cordillera Mountains, the topographic rim of Orientale, decaying to approximately 1 km in thickness at a range of 215 km. These measurements imply a volume of ejecta in the region from the Cordillera ring to a radial range of one basin diameter of approximately 2.9X10 (super 6) km (super 3) and permit the derivation of an ejecta-thickness decay model, which can be compared with estimates for the volume of excavation and the size of the transient cavity. These data are consistent with the Outer Rook Mountains as the approximate location of the transient cavity's rim crest and suggest a volume of approximately 4.8X10 (super 6) km (super 3) for the total amount of basin ejecta exterior to this location. JF - Geophysical Research Letters AU - Fassett, Caleb I AU - Head, James W AU - Smith, David E AU - Zuber, Maria T AU - Neumann, Gregory A Y1 - 2011 PY - 2011 DA - 2011 EP - Citation L17201 PB - American Geophysical Union, Washington, DC VL - 38 IS - 17 SN - 0094-8276, 0094-8276 KW - topography KW - Outer Rook Mountains KW - laser methods KW - quantitative analysis KW - Moon KW - Mare Orientale KW - surface features KW - thickness KW - altimetry KW - ejecta KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921718041?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Thickness+of+proximal+ejecta+from+the+Orientale+Basin+from+Lunar+Orbiter+Laser+Altimeter+%28LOLA%29+data%3B+implications+for+multi-ring+basin+formation&rft.au=Fassett%2C+Caleb+I%3BHead%2C+James+W%3BSmith%2C+David+E%3BZuber%2C+Maria+T%3BNeumann%2C+Gregory+A&rft.aulast=Fassett&rft.aufirst=Caleb&rft.date=2011-01-01&rft.volume=38&rft.issue=17&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2011GL048502 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 43 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - altimetry; ejecta; laser methods; Mare Orientale; Moon; Outer Rook Mountains; quantitative analysis; remote sensing; surface features; thickness; topography DO - http://dx.doi.org/10.1029/2011GL048502 ER - TY - JOUR T1 - The oxidation-reduction potential of aqueous soil solutions at the Mars Phoenix landing site AN - 921717701; 2012-023664 AB - Results from the Mars Phoenix mission Wet Chemistry Laboratory (WCL) are used to determine the oxidation-reduction potential (E (sub h) ) of the Phoenix WCL Rosy Red sample soil solution. The measured E (sub h) of the Rosy Red sample in the WCL aqueous test solution was 253 + or - 6 mV at a pH of 7.7 + or - 0.1. Measured solution E (sub h) changes correspond to changes in solution H (super +) activity, which is controlled mainly by changes in headspace P (sub CO2) and solution CO (sub 3) (super 2-) , HCO (sub 3) (super -) , and CO (sub 2) concentrations. If measured at a P (sub CO2) of 8 mbar in water, rather than in WCL test solution, the E (sub h) of the Rosy Red soil solution would be approximately 300 mV. The results of laboratory experiments using analog salt mixtures are compatible with the possible presence of low levels (ppm) of metal peroxides or other oxidants and indicate that levels of readily soluble ferrous iron in the soil are below 1 ppm. JF - Geophysical Research Letters AU - Quinn, Richard C AU - Chittenden, Julie D AU - Kounaves, Samuel P AU - Hecht, Michael H Y1 - 2011 PY - 2011 DA - 2011 EP - Citation L14202 PB - American Geophysical Union, Washington, DC VL - 38 IS - 14 SN - 0094-8276, 0094-8276 KW - soils KW - oxidation KW - Mars KW - aqueous solutions KW - iron KW - ferrous iron KW - carbon dioxide KW - terrestrial planets KW - planets KW - metals KW - Rosy Red soils KW - reduction KW - chemical composition KW - geochemistry KW - pH KW - Eh KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921717701?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=The+oxidation-reduction+potential+of+aqueous+soil+solutions+at+the+Mars+Phoenix+landing+site&rft.au=Quinn%2C+Richard+C%3BChittenden%2C+Julie+D%3BKounaves%2C+Samuel+P%3BHecht%2C+Michael+H&rft.aulast=Quinn&rft.aufirst=Richard&rft.date=2011-01-01&rft.volume=38&rft.issue=14&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2011GL047671 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 30 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - aqueous solutions; carbon dioxide; chemical composition; Eh; ferrous iron; geochemistry; iron; Mars; metals; oxidation; pH; planets; reduction; Rosy Red soils; soils; terrestrial planets DO - http://dx.doi.org/10.1029/2011GL047671 ER - TY - JOUR T1 - Methane and environmental change during the Paleocene-Eocene Thermal Maximum (PETM); modeling the PETM onset as a two-stage event AN - 921717305; 2012-023268 AB - An atmospheric CH (sub 4) box model coupled to a global carbon cycle box model is used to constrain the carbon emission associated with the PETM and assess the role of CH (sub 4) during this event. A range of atmospheric and oceanic emission scenarios representing different amounts, rates, and isotopic signatures of emitted carbon are used to model the PETM onset. The first 3 kyr of the onset, a pre-isotope excursion stage, is simulated by the atmospheric release of 900 to 1100 Pg C CH (sub 4) with a delta (super 13) C of -22 to -30 ppm. For a global average warming of 3 degrees C, a release of CO (sub 2) to the ocean and CH (sub 4) to the atmosphere totalling 900 to 1400 Pg C, with a delta (super 13) C of -50 to -60 ppm, simulates the subsequent 1-kyr isotope excursion stage. To explain the observations, the carbon must have been released over at most 500 years. The first stage results cannot be associated with any known PETM hypothesis. However, the second stage results are consistent with a methane hydrate source. More than a single source of carbon is required to explain the PETM onset. JF - Geophysical Research Letters AU - Carozza, David A AU - Mysak, Lawrence A AU - Schmidt, Gavin A Y1 - 2011 PY - 2011 DA - 2011 EP - Citation L05702 PB - American Geophysical Union, Washington, DC VL - 38 IS - 5 SN - 0094-8276, 0094-8276 KW - methane KW - Eocene KW - paleoatmosphere KW - aliphatic hydrocarbons KW - Paleogene KW - Paleocene-Eocene Thermal Maximum KW - alkanes KW - paleoclimatology KW - geochemical cycle KW - models KW - Cenozoic KW - Tertiary KW - organic compounds KW - paleotemperature KW - carbon KW - Paleocene KW - hydrocarbons KW - carbon cycle KW - chemical composition KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921717305?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Methane+and+environmental+change+during+the+Paleocene-Eocene+Thermal+Maximum+%28PETM%29%3B+modeling+the+PETM+onset+as+a+two-stage+event&rft.au=Carozza%2C+David+A%3BMysak%2C+Lawrence+A%3BSchmidt%2C+Gavin+A&rft.aulast=Carozza&rft.aufirst=David&rft.date=2011-01-01&rft.volume=38&rft.issue=5&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2010GL046038 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 25 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; carbon; carbon cycle; Cenozoic; chemical composition; Eocene; geochemical cycle; hydrocarbons; methane; models; organic compounds; paleoatmosphere; Paleocene; Paleocene-Eocene Thermal Maximum; paleoclimatology; Paleogene; paleotemperature; Tertiary DO - http://dx.doi.org/10.1029/2010GL046038 ER - TY - JOUR T1 - Sublimation-dominated active layers in the highlands of the Antarctic dry valleys and implications for other sites AN - 921716987; 2012-023549 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Marinova, M M AU - McKay, C P AU - Heldmann, J L AU - Davila, A F AU - Anderson, D T AU - Jackson, W A AU - Lacele, D AU - Paulson, G AU - Pollard, W H AU - Zacny, K AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2644 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - permafrost KW - thermal conductivity KW - Mars KW - temperature KW - sublimation KW - ice KW - heat flow KW - ground ice KW - climate KW - water KW - University Valley KW - valleys KW - periglacial environment KW - highlands KW - biota KW - terrestrial planets KW - models KW - planets KW - Antarctica KW - McMurdo dry valleys KW - Victoria Land KW - seasonal variations KW - active layer KW - Beacon Valley KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921716987?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Sublimation-dominated+active+layers+in+the+highlands+of+the+Antarctic+dry+valleys+and+implications+for+other+sites&rft.au=Marinova%2C+M+M%3BMcKay%2C+C+P%3BHeldmann%2C+J+L%3BDavila%2C+A+F%3BAnderson%2C+D+T%3BJackson%2C+W+A%3BLacele%2C+D%3BPaulson%2C+G%3BPollard%2C+W+H%3BZacny%2C+K%3BAnonymous&rft.aulast=Marinova&rft.aufirst=M&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2644.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 17, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - active layer; Antarctica; Beacon Valley; biota; climate; ground ice; heat flow; highlands; ice; Mars; McMurdo dry valleys; models; periglacial environment; permafrost; planets; seasonal variations; sublimation; temperature; terrestrial planets; thermal conductivity; University Valley; valleys; Victoria Land; water ER - TY - JOUR T1 - Chemical reactivity in mechanically ground quartz relevant to impact processes AN - 921716856; 2012-023483 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Rask, Jon C AU - McCrossin, C AU - Loftus, D J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2704 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - methods KW - experimental studies KW - silica minerals KW - Moon KW - lunar analogs KW - clastic sediments KW - grain size KW - impacts KW - grinding KW - micrometeorites KW - meteorites KW - reactivity KW - toxicity KW - dust KW - sediments KW - chemical properties KW - quartz KW - framework silicates KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921716856?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Chemical+reactivity+in+mechanically+ground+quartz+relevant+to+impact+processes&rft.au=Rask%2C+Jon+C%3BMcCrossin%2C+C%3BLoftus%2C+D+J%3BAnonymous&rft.aulast=Rask&rft.aufirst=Jon&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2704.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 15, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chemical properties; clastic sediments; dust; experimental studies; framework silicates; grain size; grinding; impacts; lunar analogs; meteorites; methods; micrometeorites; Moon; quartz; reactivity; regolith; sediments; silica minerals; silicates; toxicity ER - TY - JOUR T1 - Simulating the formation of large alluvial fans on Mars AN - 921716723; 2012-023399 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Morgan, A M AU - Beyer, R A AU - Howard, A D AU - Moore, J M AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1584 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - eolian features KW - avulsion KW - Saheki Crater KW - erosion KW - sediment supply KW - suspended materials KW - Mars KW - landforms KW - digital terrain models KW - simulation KW - sediments KW - discharge KW - granulometry KW - bedload KW - distributaries KW - THEMIS KW - clastic sediments KW - sedimentation KW - aggradation KW - channels KW - terrestrial planets KW - models KW - planets KW - precipitation KW - channel geometry KW - alluvial fans KW - runoff KW - fluvial features KW - MOLA KW - overbank sediments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921716723?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Simulating+the+formation+of+large+alluvial+fans+on+Mars&rft.au=Morgan%2C+A+M%3BBeyer%2C+R+A%3BHoward%2C+A+D%3BMoore%2C+J+M%3BAnonymous&rft.aulast=Morgan&rft.aufirst=A&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1584.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 23, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aggradation; alluvial fans; avulsion; bedload; channel geometry; channels; clastic sediments; digital terrain models; discharge; distributaries; eolian features; erosion; fluvial features; granulometry; landforms; Mars; models; MOLA; overbank sediments; planets; precipitation; runoff; Saheki Crater; sediment supply; sedimentation; sediments; simulation; suspended materials; terrestrial planets; THEMIS ER - TY - JOUR T1 - The anomalous winter of 1783-1784; was the Laki eruption or an analog of the 2009-2010 winter to blame? AN - 921716642; 2012-023260 AB - The multi-stage eruption of the Icelandic volcano Laki beginning in June, 1783 is speculated to have caused unusual dry fog and heat in western Europe and cold in North America during the 1783 summer, and record cold and snow the subsequent winter across the circum-North Atlantic. Despite the many indisputable impacts of the Laki eruption, however, its effect on climate, particularly during the 1783-1784 winter, may be the most poorly constrained. Here we test an alternative explanation for the unusual conditions during this time: that they were caused primarily by a combined negative phase of the North Atlantic Oscillation (NAO) and an El Nino-Southern Oscillation (ENSO) warm event. A similar combination of NAO-ENSO phases was identified as the cause of record cold and snowy conditions during the 2009-2010 winter in Europe and eastern North America. 600-year tree-ring reconstructions of NAO and ENSO indices reveal values in the 1783-1784 winter second only to their combined severity in 2009-2010. Data sources and model simulations support our hypothesis that a combined, negative NAO-ENSO warm phase was the dominant cause of the anomalous winter of 1783-1784, and that these events likely resulted from natural variability unconnected to Laki. JF - Geophysical Research Letters AU - D'Arrigo, Rosanne AU - Seager, Richard AU - Smerdon, Jason E AU - LeGrande, Allegra N AU - Cook, Edward R Y1 - 2011 PY - 2011 DA - 2011 EP - Citation L05706 PB - American Geophysical Union, Washington, DC VL - 38 IS - 5 SN - 0094-8276, 0094-8276 KW - Laki KW - Western Europe KW - Quaternary KW - atmosphere KW - Europe KW - paleoclimatology KW - Holocene KW - climate change KW - Cenozoic KW - volatiles KW - tree rings KW - volcanism KW - eruptions KW - solar radiation KW - volcanoes KW - seasonal variations KW - reconstruction KW - upper Holocene KW - Iceland KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921716642?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=The+anomalous+winter+of+1783-1784%3B+was+the+Laki+eruption+or+an+analog+of+the+2009-2010+winter+to+blame%3F&rft.au=D%27Arrigo%2C+Rosanne%3BSeager%2C+Richard%3BSmerdon%2C+Jason+E%3BLeGrande%2C+Allegra+N%3BCook%2C+Edward+R&rft.aulast=D%27Arrigo&rft.aufirst=Rosanne&rft.date=2011-01-01&rft.volume=38&rft.issue=5&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2011GL046696 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 34 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch maps N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - atmosphere; Cenozoic; climate change; eruptions; Europe; Holocene; Iceland; Laki; paleoclimatology; Quaternary; reconstruction; seasonal variations; solar radiation; tree rings; upper Holocene; volatiles; volcanism; volcanoes; Western Europe DO - http://dx.doi.org/10.1029/2011GL046696 ER - TY - JOUR T1 - Temporal variations in Titan's atmosphere and surface AN - 921715939; 2012-023567 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Coustenis, Athena AU - Bampasidis, G AU - Solomonidou, A AU - Vinatier, S AU - Achterberg, R AU - Hirtzig, M AU - Jennings, D AU - Nixon, C AU - Flasar, M AU - Moussas, X AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1676 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - surface properties KW - icy satellites KW - numerical models KW - photochemistry KW - Voyager Program KW - atmosphere KW - temperature KW - atmospheric circulation KW - spatial variations KW - Cassini-Huygens Mission KW - topography KW - SAR KW - dynamics KW - surface features KW - Titan Satellite KW - Composite Infrared Spectrometer KW - temporal distribution KW - tectonics KW - seasonal variations KW - latitude KW - satellites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921715939?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Temporal+variations+in+Titan%27s+atmosphere+and+surface&rft.au=Coustenis%2C+Athena%3BBampasidis%2C+G%3BSolomonidou%2C+A%3BVinatier%2C+S%3BAchterberg%2C+R%3BHirtzig%2C+M%3BJennings%2C+D%3BNixon%2C+C%3BFlasar%2C+M%3BMoussas%2C+X%3BAnonymous&rft.aulast=Coustenis&rft.aufirst=Athena&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1676.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - SuppNotes - Accessed on Nov. 18, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; atmospheric circulation; Cassini-Huygens Mission; Composite Infrared Spectrometer; dynamics; icy satellites; latitude; numerical models; photochemistry; SAR; satellites; seasonal variations; spatial variations; surface features; surface properties; tectonics; temperature; temporal distribution; Titan Satellite; topography; Voyager Program ER - TY - JOUR T1 - Investigating the stratigraphy and three dimensional structure of the youngest lava flows on Mars using the SHARAD radar AN - 921715138; 2012-023506 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Morgan, G A AU - Campbell, B A AU - Carter, l M AU - Plaut, J J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2629 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - reflection KW - lava flows KW - SHARAD KW - radar methods KW - Mars Reconnaissance Orbiter KW - Mars KW - mapping KW - landforms KW - dielectric constant KW - terrestrial planets KW - planets KW - volcanic features KW - Amazonian KW - thrust faults KW - sounding KW - Elysium KW - orbital observations KW - faults KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921715138?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Investigating+the+stratigraphy+and+three+dimensional+structure+of+the+youngest+lava+flows+on+Mars+using+the+SHARAD+radar&rft.au=Morgan%2C+G+A%3BCampbell%2C+B+A%3BCarter%2C+l+M%3BPlaut%2C+J+J%3BAnonymous&rft.aulast=Morgan&rft.aufirst=G&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2629.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 16, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Amazonian; dielectric constant; Elysium; faults; landforms; lava flows; mapping; Mars; Mars Reconnaissance Orbiter; orbital observations; planets; radar methods; reflection; SHARAD; sounding; terrestrial planets; thrust faults; volcanic features ER - TY - JOUR T1 - Laboratory simulations of Mars evaporite geochemistry; evaporation of modern brines under various headspace gas mixtures AN - 921715124; 2012-023386 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bullock, M A AU - Moore, J M AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2823 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Mars KW - simulation KW - crystallinity KW - infrared spectra KW - laboratory studies KW - FTIR spectra KW - sedimentary rocks KW - spectra KW - geochemistry KW - experimental studies KW - chemically precipitated rocks KW - magnesium sulfates KW - sulfates KW - evaporites KW - gases KW - epsomite KW - terrestrial planets KW - planets KW - evaporation KW - hexahydrite KW - precipitation KW - brines KW - reflectance KW - Mars analogs KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921715124?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Laboratory+simulations+of+Mars+evaporite+geochemistry%3B+evaporation+of+modern+brines+under+various+headspace+gas+mixtures&rft.au=Bullock%2C+M+A%3BMoore%2C+J+M%3BAnonymous&rft.aulast=Bullock&rft.aufirst=M&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2823.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Nov. 22, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - brines; chemically precipitated rocks; crystallinity; epsomite; evaporation; evaporites; experimental studies; FTIR spectra; gases; geochemistry; hexahydrite; infrared spectra; laboratory studies; magnesium sulfates; Mars; Mars analogs; planets; precipitation; reflectance; sedimentary rocks; simulation; spectra; sulfates; terrestrial planets ER - TY - JOUR T1 - The influence of cratered slopes on late-Noachian valley network formation AN - 921715115; 2012-023406 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Barnhart, C J AU - Howard, A D AU - Moore, J M AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1983 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Noachian KW - impact features KW - valleys KW - erosion KW - slopes KW - landform evolution KW - water erosion KW - Mars KW - atmospheric precipitation KW - simulation KW - terrestrial planets KW - morphology KW - models KW - planets KW - topography KW - fluvial features KW - basins KW - impact craters KW - landscapes KW - discharge KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921715115?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+influence+of+cratered+slopes+on+late-Noachian+valley+network+formation&rft.au=Barnhart%2C+C+J%3BHoward%2C+A+D%3BMoore%2C+J+M%3BAnonymous&rft.aulast=Barnhart&rft.aufirst=C&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1983.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 23, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; basins; discharge; erosion; fluvial features; impact craters; impact features; landform evolution; landscapes; Mars; models; morphology; Noachian; planets; simulation; slopes; terrestrial planets; topography; valleys; water erosion ER - TY - JOUR T1 - Empirical singular vector method for ensemble El Nino-Southern Oscillation prediction with a coupled general circulation model AN - 921714187; 2012-022259 AB - Optimal initial perturbation is an important issue related to the improvement of the current seasonal climate prediction. In this study, we have applied the empirical singular vector method to ensemble El Nino-Southern Oscillation (ENSO) prediction with the Seoul National University coupled general circulation model. It is found that from the empirical linear operator, the leading singular mode, which represents the fast growing error mode in the tropical Pacific, shows El Nino-like perturbation in the present coupled model. When the singular vector is used as an initial perturbation, the forecast skill of ENSO is significantly improved. Further, it is demonstrated that the predictions with the singular vector have a more reliable ensemble spread, suggesting a potential merit for a probabilistic forecast. JF - Journal of Geophysical Research AU - Kug, Jong-Seong AU - Ham, Yoo-Geun AU - Lee, Eun-Jeong AU - Kang, In-Sik Y1 - 2011 PY - 2011 DA - 2011 EP - Citation C08029 PB - American Geophysical Union, Washington, DC VL - 116 IS - C8 SN - 0148-0227, 0148-0227 KW - general circulation models KW - ocean circulation KW - sea water KW - sea surface water KW - prediction KW - salinity KW - climate change KW - temperature KW - atmospheric circulation KW - El Nino Southern Oscillation KW - Pacific Ocean KW - climate effects KW - sea-surface temperature KW - climate forcing KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921714187?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Empirical+singular+vector+method+for+ensemble+El+Nino-Southern+Oscillation+prediction+with+a+coupled+general+circulation+model&rft.au=Kug%2C+Jong-Seong%3BHam%2C+Yoo-Geun%3BLee%2C+Eun-Jeong%3BKang%2C+In-Sik&rft.aulast=Kug&rft.aufirst=Jong-Seong&rft.date=2011-01-01&rft.volume=116&rft.issue=C8&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JC006851 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 26 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmospheric circulation; climate change; climate effects; climate forcing; El Nino Southern Oscillation; general circulation models; ocean circulation; Pacific Ocean; prediction; salinity; sea surface water; sea water; sea-surface temperature; temperature DO - http://dx.doi.org/10.1029/2010JC006851 ER - TY - JOUR T1 - Seismic investigations at Barringer Crater, Arizona AN - 919647794; 2012-020160 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Roy, Soumya AU - Stewart, Robert R AU - Kring, David A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1644 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - United States KW - P-waves KW - Coconino County Arizona KW - ground-penetrating radar KW - sandstone KW - Kaibab Formation KW - elastic waves KW - dolostone KW - sedimentary rocks KW - phase velocity KW - ejecta blanket KW - Triassic KW - thickness KW - Meteor Crater KW - Moenkopi Formation KW - body waves KW - bulk density KW - Paleozoic KW - geophysical methods KW - radar methods KW - Permian KW - multichannel methods KW - Mesozoic KW - seismic methods KW - physical properties KW - velocity structure KW - Arizona KW - Coconino Sandstone KW - seismic waves KW - wave dispersion KW - carbonate rocks KW - clastic rocks KW - S-waves KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919647794?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Seismic+investigations+at+Barringer+Crater%2C+Arizona&rft.au=Roy%2C+Soumya%3BStewart%2C+Robert+R%3BKring%2C+David+A%3BAnonymous&rft.aulast=Roy&rft.aufirst=Soumya&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1644.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 5, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Arizona; body waves; bulk density; carbonate rocks; clastic rocks; Coconino County Arizona; Coconino Sandstone; dolostone; ejecta blanket; elastic waves; geophysical methods; ground-penetrating radar; Kaibab Formation; Mesozoic; Meteor Crater; Moenkopi Formation; multichannel methods; P-waves; Paleozoic; Permian; phase velocity; physical properties; radar methods; S-waves; sandstone; sedimentary rocks; seismic methods; seismic waves; thickness; Triassic; United States; velocity structure; wave dispersion ER - TY - JOUR T1 - Asymmetrical distribution of impact ejected lithologies at Barringer meteorite crater (aka Meteor Crater) AN - 919647791; 2012-020159 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Kring, David A AU - Balcerski, J AU - Blair, D M AU - Chojnacki, M AU - Donohue, P H AU - Drummond, S A AU - Garber, J M AU - Hopkins, M AU - Huber, M S AU - Jaret, S J AU - Losiak, Anna AU - Maier, A AU - Mitchell, J AU - Ong, L AU - Ostrach, L R AU - O'Sullivan, K M AU - Potter, R W K AU - Robbins, S AU - Shankar, B AU - Shea, E K AU - Singer, K N AU - Sori, M AU - Sturm, S AU - Willmes, M AU - Zanetti, M AU - Wittmann, A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1746 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - United States KW - Coconino County Arizona KW - impact features KW - sandstone KW - Kaibab Formation KW - Toroweap Formation KW - sedimentary rocks KW - ejecta blanket KW - Triassic KW - metamorphic rocks KW - Meteor Crater KW - faults KW - Moenkopi Formation KW - breccia KW - impactites KW - Paleozoic KW - trajectories KW - impact breccia KW - clasts KW - Permian KW - ejecta KW - distribution KW - Mesozoic KW - Arizona KW - Coconino Sandstone KW - impact craters KW - foliation KW - clastic rocks KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919647791?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Asymmetrical+distribution+of+impact+ejected+lithologies+at+Barringer+meteorite+crater+%28aka+Meteor+Crater%29&rft.au=Kring%2C+David+A%3BBalcerski%2C+J%3BBlair%2C+D+M%3BChojnacki%2C+M%3BDonohue%2C+P+H%3BDrummond%2C+S+A%3BGarber%2C+J+M%3BHopkins%2C+M%3BHuber%2C+M+S%3BJaret%2C+S+J%3BLosiak%2C+Anna%3BMaier%2C+A%3BMitchell%2C+J%3BOng%2C+L%3BOstrach%2C+L+R%3BO%27Sullivan%2C+K+M%3BPotter%2C+R+W+K%3BRobbins%2C+S%3BShankar%2C+B%3BShea%2C+E+K%3BSinger%2C+K+N%3BSori%2C+M%3BSturm%2C+S%3BWillmes%2C+M%3BZanetti%2C+M%3BWittmann%2C+A%3BAnonymous&rft.aulast=Kring&rft.aufirst=David&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1746.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 5, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Arizona; breccia; clastic rocks; clasts; Coconino County Arizona; Coconino Sandstone; distribution; ejecta; ejecta blanket; faults; foliation; impact breccia; impact craters; impact features; impactites; Kaibab Formation; Mesozoic; metamorphic rocks; Meteor Crater; Moenkopi Formation; Paleozoic; Permian; sandstone; sedimentary rocks; Toroweap Formation; trajectories; Triassic; United States ER - TY - JOUR T1 - Search and recovery efforts for the ALSEP data tapes AN - 919647782; 2012-020115 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nagihara, Seiichi AU - Nakamura, Y AU - Lewis, L R AU - Williams, David R AU - Taylor, Patrick T AU - Grayzeck, E J AU - Chi, P AU - Schmidt, G K AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1103 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Moon KW - government agencies KW - data processing KW - Apollo Program KW - National Space Science Data Center KW - Apollo Lunar Surface Experiment Packages KW - magnetic tapes KW - NASA KW - inventory KW - Goddard Space Flight Center KW - data restoration KW - ALSEP KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919647782?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Search+and+recovery+efforts+for+the+ALSEP+data+tapes&rft.au=Nagihara%2C+Seiichi%3BNakamura%2C+Y%3BLewis%2C+L+R%3BWilliams%2C+David+R%3BTaylor%2C+Patrick+T%3BGrayzeck%2C+E+J%3BChi%2C+P%3BSchmidt%2C+G+K%3BAnonymous&rft.aulast=Nagihara&rft.aufirst=Seiichi&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1103.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - SuppNotes - Accessed on Dec. 1, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - ALSEP; Apollo Lunar Surface Experiment Packages; Apollo Program; data processing; data restoration; Goddard Space Flight Center; government agencies; inventory; magnetic tapes; Moon; NASA; National Space Science Data Center ER - TY - JOUR T1 - Apollo lunar sample photographs; digitizing the Moon rock collection AN - 919647779; 2012-020113 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lofgren, Gary E AU - Todd, Nancy S AU - Runco, S K AU - Stefanov, W L AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1867 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - imagery KW - government agencies KW - Apollo Program KW - photography KW - data bases KW - computer networks KW - collections KW - digitization KW - Johnson Space Center KW - Moon KW - Google Moon KW - curation KW - lunar samples KW - NASA KW - inventory KW - Apollo 11 KW - Apollo 12 KW - data restoration KW - Apollo 15 KW - Apollo 14 KW - Internet KW - Apollo 17 KW - storage KW - Apollo 16 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919647779?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Apollo+lunar+sample+photographs%3B+digitizing+the+Moon+rock+collection&rft.au=Lofgren%2C+Gary+E%3BTodd%2C+Nancy+S%3BRunco%2C+S+K%3BStefanov%2C+W+L%3BAnonymous&rft.aulast=Lofgren&rft.aufirst=Gary&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1867.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Dec. 1, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Apollo 11; Apollo 12; Apollo 14; Apollo 15; Apollo 16; Apollo 17; Apollo Program; collections; computer networks; curation; data bases; data restoration; digitization; Google Moon; government agencies; imagery; Internet; inventory; Johnson Space Center; lunar samples; Moon; NASA; photography; storage ER - TY - JOUR T1 - Restoration and PDS archive of Apollo lunar rock sample data AN - 919647777; 2012-020112 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Garcia, P A AU - Todd, Nancy S AU - Lofgren, Gary E AU - Stefanov, W L AU - Runco, S K AU - LaBasse, D AU - Gaddis, L R AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2310 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Johnson Space Center KW - imagery KW - Moon KW - government agencies KW - Apollo Program KW - photography KW - curation KW - lunar samples KW - NASA KW - data bases KW - data restoration KW - computer networks KW - Planetary Data System KW - Internet KW - digitization KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919647777?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Restoration+and+PDS+archive+of+Apollo+lunar+rock+sample+data&rft.au=Garcia%2C+P+A%3BTodd%2C+Nancy+S%3BLofgren%2C+Gary+E%3BStefanov%2C+W+L%3BRunco%2C+S+K%3BLaBasse%2C+D%3BGaddis%2C+L+R%3BAnonymous&rft.aulast=Garcia&rft.aufirst=P&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2310.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Dec. 1, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Apollo Program; computer networks; curation; data bases; data restoration; digitization; government agencies; imagery; Internet; Johnson Space Center; lunar samples; Moon; NASA; photography; Planetary Data System ER - TY - JOUR T1 - Apollo lunar sample integration into Google Moon; a new approach to digitization AN - 919647776; 2012-020111 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Dawson, Melissa D AU - Todd, Nancy S AU - Lofgren, Gary E AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1783 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - imagery KW - spatial data KW - Moon KW - mapping KW - Google Moon KW - Apollo Program KW - landing sites KW - photography KW - computer programs KW - visualization KW - lunar samples KW - panoramas KW - data integration KW - Apollo 15 KW - Apollo 16 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919647776?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Apollo+lunar+sample+integration+into+Google+Moon%3B+a+new+approach+to+digitization&rft.au=Dawson%2C+Melissa+D%3BTodd%2C+Nancy+S%3BLofgren%2C+Gary+E%3BAnonymous&rft.aulast=Dawson&rft.aufirst=Melissa&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1783.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 1, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Apollo 15; Apollo 16; Apollo Program; computer programs; data integration; Google Moon; imagery; landing sites; lunar samples; mapping; Moon; panoramas; photography; spatial data; visualization ER - TY - JOUR T1 - PDS Lunar Data Node; restoration of Apollo surface and orbital data AN - 919647774; 2012-020110 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Williams, David R AU - Hills, H Kent AU - Guinness, Edward A AU - Lowman, Paul D AU - Taylor, Patrick T AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2286 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Lunar Data Node KW - Apollo Lunar Surface Experiment Packages KW - Moon KW - data bases KW - Apollo Program KW - orbital observations KW - ALSEP KW - Planetary Data System KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919647774?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=PDS+Lunar+Data+Node%3B+restoration+of+Apollo+surface+and+orbital+data&rft.au=Williams%2C+David+R%3BHills%2C+H+Kent%3BGuinness%2C+Edward+A%3BLowman%2C+Paul+D%3BTaylor%2C+Patrick+T%3BAnonymous&rft.aulast=Williams&rft.aufirst=David&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2286.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - TX N1 - SuppNotes - Accessed on Dec. 1, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - ALSEP; Apollo Lunar Surface Experiment Packages; Apollo Program; data bases; Lunar Data Node; Moon; orbital observations; Planetary Data System ER - TY - JOUR T1 - Experimental shock transformation of gypsum to anhydrite; a new low pressure regime shock indicator AN - 919647606; 2012-020146 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bell, Mary S AU - Zolensky, M E AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2008 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - anhydrite KW - experimental studies KW - chemically precipitated rocks KW - pressure KW - impactites KW - sulfates KW - low pressure KW - indicators KW - metamorphism KW - evaporites KW - sedimentary rocks KW - Raman spectra KW - polymorphism KW - gypsum KW - metamorphic rocks KW - spectra KW - transformations KW - shock metamorphism KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919647606?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Experimental+shock+transformation+of+gypsum+to+anhydrite%3B+a+new+low+pressure+regime+shock+indicator&rft.au=Bell%2C+Mary+S%3BZolensky%2C+M+E%3BAnonymous&rft.aulast=Bell&rft.aufirst=Mary&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2008.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 5, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - anhydrite; chemically precipitated rocks; evaporites; experimental studies; gypsum; impactites; indicators; low pressure; metamorphic rocks; metamorphism; polymorphism; pressure; Raman spectra; sedimentary rocks; shock metamorphism; spectra; sulfates; transformations ER - TY - JOUR T1 - The NASA Lunar Science Institute Education and Public Outreach Program AN - 919646848; 2012-020127 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Daou, D AU - Day, B H AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1548 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - programs KW - public awareness KW - Moon KW - NASA KW - government agencies KW - NASA Lunar Science Institute KW - education KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919646848?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+NASA+Lunar+Science+Institute+Education+and+Public+Outreach+Program&rft.au=Daou%2C+D%3BDay%2C+B+H%3BAnonymous&rft.aulast=Daou&rft.aufirst=D&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1548.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - TX N1 - SuppNotes - Accessed on Dec. 1, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - education; government agencies; Moon; NASA; NASA Lunar Science Institute; programs; public awareness ER - TY - JOUR T1 - Digitization and reanalysis of Apollo surface traverses AN - 919646303; 2012-020119 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Petro, Noah E AU - Bleacher, J E AU - Gaddis, L R AU - Garry, W B AU - Mest, S C AU - Abercromby, A F AU - Gernhardt, M L AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2032 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - imagery KW - Moon KW - ArcGIS KW - Lunar Reconnaissance Orbiter Camera KW - geotraverses KW - Apollo Program KW - landing sites KW - lunar samples KW - geographic information systems KW - information systems KW - extravehicular activity KW - digitization KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919646303?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Digitization+and+reanalysis+of+Apollo+surface+traverses&rft.au=Petro%2C+Noah+E%3BBleacher%2C+J+E%3BGaddis%2C+L+R%3BGarry%2C+W+B%3BMest%2C+S+C%3BAbercromby%2C+A+F%3BGernhardt%2C+M+L%3BAnonymous&rft.aulast=Petro&rft.aufirst=Noah&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2032.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Dec. 1, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Apollo Program; ArcGIS; digitization; extravehicular activity; geographic information systems; geotraverses; imagery; information systems; landing sites; Lunar Reconnaissance Orbiter Camera; lunar samples; Moon ER - TY - JOUR T1 - Stereo reconstruction from Apollo 15 and 16 metric camera AN - 919646296; 2012-020118 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Moratto, Zachary M AU - Nefian, Ara AU - Kim, Taemin AU - Broxton, Michael AU - Beyer, Ross AU - Fong, Terry AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2267 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - imagery KW - Ames Stereo Pipeline KW - Lunar Mapping and Modeling Project KW - Moon KW - data processing KW - mapping KW - Apollo Program KW - digital terrain models KW - bundle adjustment KW - noise KW - computer programs KW - errors KW - mosaics KW - reconstruction KW - Apollo 15 KW - stereo imagery KW - cameras KW - Apollo 16 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919646296?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Stereo+reconstruction+from+Apollo+15+and+16+metric+camera&rft.au=Moratto%2C+Zachary+M%3BNefian%2C+Ara%3BKim%2C+Taemin%3BBroxton%2C+Michael%3BBeyer%2C+Ross%3BFong%2C+Terry%3BAnonymous&rft.aulast=Moratto&rft.aufirst=Zachary&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2267.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 1, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Ames Stereo Pipeline; Apollo 15; Apollo 16; Apollo Program; bundle adjustment; cameras; computer programs; data processing; digital terrain models; errors; imagery; Lunar Mapping and Modeling Project; mapping; Moon; mosaics; noise; reconstruction; stereo imagery ER - TY - JOUR T1 - Robust orbital refinement of the Apollo trajectory data for the Ames Stereo Pipeline AN - 919646288; 2012-020117 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Kim, Taemin AU - Moratto, Zachary M AU - Nefian, A V AU - Ly, S AU - Demonceaux, C AU - Fofi, D AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2680 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - imagery KW - refinement KW - government agencies KW - data processing KW - Apollo Program KW - digital terrain models KW - photography KW - bundle adjustment KW - Apollo Metric Camera KW - Ames Research Center KW - errors KW - dynamics KW - orbital observations KW - cameras KW - Ames Stereo Pipeline KW - Moon KW - trajectories KW - satellite methods KW - geometry KW - computer programs KW - NASA KW - corrections KW - Apollo 17 KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919646288?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Robust+orbital+refinement+of+the+Apollo+trajectory+data+for+the+Ames+Stereo+Pipeline&rft.au=Kim%2C+Taemin%3BMoratto%2C+Zachary+M%3BNefian%2C+A+V%3BLy%2C+S%3BDemonceaux%2C+C%3BFofi%2C+D%3BAnonymous&rft.aulast=Kim&rft.aufirst=Taemin&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2680.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 1, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Ames Research Center; Ames Stereo Pipeline; Apollo 17; Apollo Metric Camera; Apollo Program; bundle adjustment; cameras; computer programs; corrections; data processing; digital terrain models; dynamics; errors; geometry; government agencies; imagery; Moon; NASA; orbital observations; photography; refinement; remote sensing; satellite methods; trajectories ER - TY - JOUR T1 - Solar system samples for research, education, and public outreach AN - 919645972; 2012-020126 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Allen, Jaclyn AU - Luckey, M AU - McInturff, B AU - Kascak, A AU - Tobola, K AU - Galindo, C AU - Allen, C AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2426 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - lunar meteorites KW - stony meteorites KW - asteroids KW - Martian meteorites KW - solar wind KW - thin sections KW - education KW - meteorites KW - computer networks KW - interstellar dust KW - lunar soils KW - solar system KW - Vesta Asteroid KW - public awareness KW - Moon KW - research KW - achondrites KW - curation KW - lunar samples KW - Lunar Sample Education Disks KW - cosmic dust KW - comets KW - Antarctica KW - Internet KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919645972?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Solar+system+samples+for+research%2C+education%2C+and+public+outreach&rft.au=Allen%2C+Jaclyn%3BLuckey%2C+M%3BMcInturff%2C+B%3BKascak%2C+A%3BTobola%2C+K%3BGalindo%2C+C%3BAllen%2C+C%3BAnonymous&rft.aulast=Allen&rft.aufirst=Jaclyn&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2426.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 1, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; Antarctica; asteroids; comets; computer networks; cosmic dust; curation; education; Internet; interstellar dust; lunar meteorites; Lunar Sample Education Disks; lunar samples; lunar soils; Martian meteorites; meteorites; Moon; public awareness; research; solar system; solar wind; stony meteorites; thin sections; Vesta Asteroid ER - TY - JOUR T1 - The Open University-NASA Apollo Virtual Microscope; a tool for education and outreach AN - 919645962; 2012-020125 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Kelley, S P AU - Tindle, A G AU - Anand, M AU - Whalley, P C AU - Hogan, P AU - Valentine, C P AU - Pillinger, C T AU - Gibson, E K AU - Schwenzer, S P AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 1799 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - programs KW - imagery KW - public awareness KW - Moon KW - government agencies KW - Apollo Program KW - thin sections KW - education KW - simulation KW - Open University KW - computer programs KW - Apollo Virtual Microscope KW - virtual reality KW - NASA KW - microscope methods KW - petrography KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919645962?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+Open+University-NASA+Apollo+Virtual+Microscope%3B+a+tool+for+education+and+outreach&rft.au=Kelley%2C+S+P%3BTindle%2C+A+G%3BAnand%2C+M%3BWhalley%2C+P+C%3BHogan%2C+P%3BValentine%2C+C+P%3BPillinger%2C+C+T%3BGibson%2C+E+K%3BSchwenzer%2C+S+P%3BAnonymous&rft.aulast=Kelley&rft.aufirst=S&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1799.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 1, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Apollo Program; Apollo Virtual Microscope; computer programs; education; government agencies; imagery; microscope methods; Moon; NASA; Open University; petrography; programs; public awareness; simulation; thin sections; virtual reality ER - TY - JOUR T1 - Nuclear interactions in heavy ion transport and event-based risk models AN - 918041864; 14453588 AB - The physical description of the passage of heavy ions in tissue and shielding materials is of interest in radiobiology, cancer therapy and space exploration, including a human mission to Mars. Galactic cosmic rays (GCRs) consist of a large number of ion types and energies. Energy loss processes occur continuously along the path of heavy ions and are well described by the linear energy transfer (LET), straggling and multiple scattering algorithms. Nuclear interactions lead to much larger energy deposition than atomic-molecular collisions and alter the composition of heavy ion beams while producing secondary nuclei often in high multiplicity events. The major nuclear interaction processes of importance for describing heavy ion beams was reviewed, including nuclear fragmentation, elastic scattering and knockout-cascade processes. The quantum multiple scattering fragmentation model is shown to be in excellent agreement with available experimental data for nuclear fragmentation cross sections and is studied for application to thick target experiments. A new computer model, which was developed for the description of biophysical events from heavy ion beams at the NASA Space Radiation Laboratory (NSRL), called the GCR Event Risk-Based Model (GERMcode) is described. JF - Radiation Protection Dosimetry AU - Cucinotta, Francis A AU - Plante, Ianik AU - Ponomarev, Artem L AU - Kim, Myung-Hee Y AD - NASA, Lyndon B. Johnson Space Center, Houston, TX 77058, USA. U.S.R.A. Division of Life Sciences, Houston, TX 77058, USA Y1 - 2011 PY - 2011 DA - 2011 SP - 384 EP - 390 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK VL - 143 SN - 0144-8420, 0144-8420 KW - Environment Abstracts KW - Cancer KW - Cosmic radiation KW - Dosimetry KW - Nuclear energy KW - Radiation KW - Reviews KW - computer models KW - ion transport KW - ENA 03:Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/918041864?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+Protection+Dosimetry&rft.atitle=Nuclear+interactions+in+heavy+ion+transport+and+event-based+risk+models&rft.au=Cucinotta%2C+Francis+A%3BPlante%2C+Ianik%3BPonomarev%2C+Artem+L%3BKim%2C+Myung-Hee+Y&rft.aulast=Cucinotta&rft.aufirst=Francis&rft.date=2011-01-01&rft.volume=143&rft.issue=&rft.spage=384&rft.isbn=&rft.btitle=&rft.title=Radiation+Protection+Dosimetry&rft.issn=01448420&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-06-18 N1 - SubjectsTermNotLitGenreText - Radiation; Reviews; Dosimetry; Cosmic radiation; computer models; Nuclear energy; ion transport; Cancer ER - TY - JOUR T1 - 3D visualisation of the stochastic patterns of the radial dose in nano-volumes by a Monte Carlo simulation of HZE ion track structure AN - 918041416; 14453632 AB - The description of energy deposition by high charge and energy (HZE) nuclei is of importance for space radiation risk assessment and due to their use in hadrontherapy. Such ions deposit a large fraction of their energy within the so-called core of the track and a smaller proportion in the penumbra (or track periphery). We study the stochastic patterns of the radial dependence of energy deposition using Monte Carlo track structure codes RITRACKS and RETRACKS, that were used to simulate HZE tracks and calculate energy deposition in voxels of 40 nm. The simulation of a 56Fe26+ ion of 1 GeV u-1 revealed zones of high-energy deposition which maybe found as far as a few millimetres away from the track core in some simulations. The calculation also showed that similar to 43 % of the energy was deposited in the penumbra. These 3D stochastic simulations combined with a visualisation interface are a powerful tool for biophysicists which may be used to study radiation-induced biological effects such as double strand breaks and oxidative damage and the subsequent cellular and tissue damage processing and signalling. JF - Radiation Protection Dosimetry AU - Plante, Ianik AU - Ponomarev, Artem AU - Cucinotta, Francis A AD - NASA Johnson Space Center, 2101 NASA Parkway, Houston, TX 77058, USA Y1 - 2011 PY - 2011 DA - 2011 SP - 156 EP - 161 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK VL - 143 SN - 0144-8420, 0144-8420 KW - Risk Abstracts; Environment Abstracts KW - Dosimetry KW - Ions KW - Monte Carlo simulation KW - Risk assessment KW - Simulation KW - biological effects KW - R2 23020:Technological risks KW - ENA 02:Toxicology & Environmental Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/918041416?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+Protection+Dosimetry&rft.atitle=3D+visualisation+of+the+stochastic+patterns+of+the+radial+dose+in+nano-volumes+by+a+Monte+Carlo+simulation+of+HZE+ion+track+structure&rft.au=Plante%2C+Ianik%3BPonomarev%2C+Artem%3BCucinotta%2C+Francis+A&rft.aulast=Plante&rft.aufirst=Ianik&rft.date=2011-01-01&rft.volume=143&rft.issue=&rft.spage=156&rft.isbn=&rft.btitle=&rft.title=Radiation+Protection+Dosimetry&rft.issn=01448420&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-06-18 N1 - SubjectsTermNotLitGenreText - Monte Carlo simulation; Risk assessment; Ions; biological effects; Dosimetry; Simulation ER - TY - JOUR T1 - The annual glaciohydrology cycle in the ablation zone of the Greenland ice sheet; Part 1, Hydrology model AN - 916842280; 2012-015864 AB - We apply a novel one-dimensional glacier hydrology model that calculates hydraulic head to the tidewater-terminating Sermeq Avannarleq flowline of the Greenland ice sheet. Within a plausible parameter space, the model achieves a quasi-steady-state annual cycle in which hydraulic head oscillates close to flotation throughout the ablation zone. Flotation is briefly achieved during the summer melt season along a approximately 17 km stretch of the approximately 50 km of flowline within the ablation zone. Beneath the majority of the flowline, subglacial conduit storage 'closes' (i.e. obtains minimum radius) during the winter and 'opens' (i.e. obtains maximum radius) during the summer. Along certain stretches of the flowline, the model predicts that subglacial conduit storage remains open throughout the year. A calculated mean glacier water residence time of approximately 2.2 years implies that significant amounts of water are stored in the glacier throughout the year. We interpret this residence time as being indicative of the timescale over which the glacier hydrologic system is capable of adjusting to external surface meltwater forcings. Based on in situ ice velocity observations, we suggest that the summer speed-up event generally corresponds to conditions of increasing hydraulic head during inefficient subglacial drainage. Conversely, the slowdown during fall generally corresponds to conditions of decreasing hydraulic head during efficient subglacial drainage. JF - Journal of Glaciology AU - Colgan, William AU - Rajaram, Harihar AU - Anderson, Robert AU - Steffen, Konrad AU - Phillips, Thomas AU - Joughin, Ian AU - Zwally, H Jay AU - Abdalati, Waleed Y1 - 2011 PY - 2011 DA - 2011 SP - 697 EP - 709 PB - International Glaciological Society, Cambridge VL - 57 IS - 204 SN - 0022-1430, 0022-1430 KW - hydrology KW - ablation KW - annual variations KW - one-dimensional models KW - Arctic region KW - Greenland ice sheet KW - ice cover KW - ice sheets KW - Greenland KW - hydrologic cycle KW - hydraulic head KW - mass balance KW - ice KW - glacial geology KW - ice cover distribution KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/916842280?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Glaciology&rft.atitle=The+annual+glaciohydrology+cycle+in+the+ablation+zone+of+the+Greenland+ice+sheet%3B+Part+1%2C+Hydrology+model&rft.au=Colgan%2C+William%3BRajaram%2C+Harihar%3BAnderson%2C+Robert%3BSteffen%2C+Konrad%3BPhillips%2C+Thomas%3BJoughin%2C+Ian%3BZwally%2C+H+Jay%3BAbdalati%2C+Waleed&rft.aulast=Colgan&rft.aufirst=William&rft.date=2011-01-01&rft.volume=57&rft.issue=204&rft.spage=697&rft.isbn=&rft.btitle=&rft.title=Journal+of+Glaciology&rft.issn=00221430&rft_id=info:doi/ L2 - http://www.ingentaconnect.com/content/igsoc/jog/2011/00000057/00000204/art00011 http://www.igsoc.org/journal/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 56 N1 - Document feature - illus. incl. sketch map N1 - SuppNotes - Includes appendix N1 - Last updated - 2012-06-07 N1 - CODEN - JOGLAO N1 - SubjectsTermNotLitGenreText - ablation; annual variations; Arctic region; glacial geology; Greenland; Greenland ice sheet; hydraulic head; hydrologic cycle; hydrology; ice; ice cover; ice cover distribution; ice sheets; mass balance; one-dimensional models ER - TY - JOUR T1 - Variability of basal melt beneath the Pine Island Glacier ice shelf, West Antarctica AN - 916841130; 2012-015854 AB - Observations from satellite and airborne platforms are combined with model calculations to infer the nature and efficiency of basal melting of the Pine Island Glacier ice shelf, West Antarctica, by ocean waters. Satellite imagery shows surface features that suggest ice-shelf-wide changes to the ocean's influence on the ice shelf as the grounding line retreated. Longitudinal profiles of ice surface and bottom elevations are analyzed to reveal a spatially dependent pattern of basal melt with an annual melt flux of 40.5 Gt a (super -1) . One profile captures a persistent set of surface waves that correlates with quasi-annual variations of atmospheric forcing of Amundsen Sea circulation patterns, establishing a direct connection between atmospheric variability and sub-ice-shelf melting. Ice surface troughs are hydrostatically compensated by ice-bottom voids up to 150 m deep. Voids form dynamically at the grounding line, triggered by enhanced melting when warmer-than-average water arrives. Subsequent enlargement of the voids is thermally inefficient (4% or less) compared with an overall melting efficiency beneath the ice shelf of 22%. Residual warm water is believed to cause three persistent polynyas at the ice-shelf front seen in Landsat imagery. Landsat thermal imagery confirms the occurrence of warm water at the same locations. JF - Journal of Glaciology AU - Bindschadler, Robert A AU - Vaughan, David G AU - Vornberger, Patricia Y1 - 2011 PY - 2011 DA - 2011 SP - 581 EP - 595 PB - International Glaciological Society, Cambridge VL - 57 IS - 204 SN - 0022-1430, 0022-1430 KW - Southern Ocean KW - ocean circulation KW - West Antarctica KW - ice cover thickness KW - ice cover KW - glaciers KW - ice shelves KW - satellite methods KW - melting KW - Antarctica KW - glacial geology KW - bathymetry KW - Amundsen Sea KW - climate forcing KW - remote sensing KW - Pine Island Glacier KW - meltwater KW - airborne methods KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/916841130?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Glaciology&rft.atitle=Variability+of+basal+melt+beneath+the+Pine+Island+Glacier+ice+shelf%2C+West+Antarctica&rft.au=Bindschadler%2C+Robert+A%3BVaughan%2C+David+G%3BVornberger%2C+Patricia&rft.aulast=Bindschadler&rft.aufirst=Robert&rft.date=2011-01-01&rft.volume=57&rft.issue=204&rft.spage=581&rft.isbn=&rft.btitle=&rft.title=Journal+of+Glaciology&rft.issn=00221430&rft_id=info:doi/ L2 - http://www.ingentaconnect.com/content/igsoc/jog/2011/00000057/00000204/art00001 http://www.igsoc.org/journal/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 22 N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - SuppNotes - NSF Grant OPP-0732906 N1 - Last updated - 2012-06-07 N1 - CODEN - JOGLAO N1 - SubjectsTermNotLitGenreText - airborne methods; Amundsen Sea; Antarctica; bathymetry; climate forcing; glacial geology; glaciers; ice cover; ice cover thickness; ice shelves; melting; meltwater; ocean circulation; Pine Island Glacier; remote sensing; satellite methods; Southern Ocean; West Antarctica ER - TY - JOUR T1 - Satellites measure recent rates of groundwater depletion in California's Central Valley AN - 916839331; 2012-012231 AB - In highly productive agricultural areas such as California's Central Valley, where groundwater often supplies the bulk of the water required for irrigation, quantifying rates of groundwater depletion remains a challenge owing to a lack of monitoring infrastructure and the absence of water use reporting requirements. Here we use 78 months (October 2003-March 2010) of data from the Gravity Recovery and Climate Experiment satellite mission to estimate water storage changes in California's Sacramento and San Joaquin River Basins. We find that the basins are losing water at a rate of 31.0 + or - 2.7 mm yr (super -1) equivalent water height, equal to a volume of 30.9 km (super 3) for the study period, or nearly the capacity of Lake Mead, the largest reservoir in the United States. We use additional observations and hydrological model information to determine that the majority of these losses are due to groundwater depletion in the Central Valley. Our results show that the Central Valley lost 20.4 + or - 3.9 mm yr (super -1) of groundwater during the 78-month period, or 20.3 km (super 3) in volume. Continued groundwater depletion at this rate may well be unsustainable, with potentially dire consequences for the economic and food security of the United States. JF - Geophysical Research Letters AU - Famiglietti, J S AU - Lo, M AU - Ho, S L AU - Bethune, J AU - Anderson, K J AU - Syed, T H AU - Swenson, S C AU - de Linage, C R AU - Rodell, M Y1 - 2011 PY - 2011 DA - 2011 EP - Citation L03403 PB - American Geophysical Union, Washington, DC VL - 38 IS - 3 SN - 0094-8276, 0094-8276 KW - United States KW - soils KW - hydrology KW - water storage KW - water supply KW - snow cover KW - San Joaquin Valley KW - moisture KW - Sacramento Valley KW - Central California KW - water management KW - GRACE KW - atmospheric precipitation KW - satellite methods KW - evapotranspiration KW - ground water KW - aquifers KW - Central Valley KW - California KW - water table KW - rain KW - remote sensing KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/916839331?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Satellites+measure+recent+rates+of+groundwater+depletion+in+California%27s+Central+Valley&rft.au=Famiglietti%2C+J+S%3BLo%2C+M%3BHo%2C+S+L%3BBethune%2C+J%3BAnderson%2C+K+J%3BSyed%2C+T+H%3BSwenson%2C+S+C%3Bde+Linage%2C+C+R%3BRodell%2C+M&rft.aulast=Famiglietti&rft.aufirst=J&rft.date=2011-01-01&rft.volume=38&rft.issue=3&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2010GL046442 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 25 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - aquifers; atmospheric precipitation; California; Central California; Central Valley; evapotranspiration; GRACE; ground water; hydrology; moisture; rain; remote sensing; Sacramento Valley; San Joaquin Valley; satellite methods; snow cover; soils; United States; water management; water storage; water supply; water table DO - http://dx.doi.org/10.1029/2010GL046442 ER - TY - JOUR T1 - Experimental space weathering of ordinary chondrites by nanopulse laser; TEM results AN - 911678936; 2012-004578 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Noble, S K AU - Hiroi, T AU - Keller, L P AU - Rahman, Z AU - Sasaki, S AU - Pieters, C M AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1382 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Appley Bridge Meteorite KW - near-infrared spectra KW - ordinary chondrites KW - stony meteorites KW - laser methods KW - Chateau Renard Meteorite KW - optical spectra KW - iron KW - Ehole Meteorite KW - droplets KW - meteorites KW - melting KW - CR chondrites KW - spectra KW - chondrites KW - experimental studies KW - textures KW - LL chondrites KW - H chondrites KW - carbonaceous chondrites KW - weathering KW - TEM data KW - space weathering KW - metals KW - nanophase iron KW - reflectance KW - SEM data KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911678936?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Experimental+space+weathering+of+ordinary+chondrites+by+nanopulse+laser%3B+TEM+results&rft.au=Noble%2C+S+K%3BHiroi%2C+T%3BKeller%2C+L+P%3BRahman%2C+Z%3BSasaki%2C+S%3BPieters%2C+C+M%3BAnonymous&rft.aulast=Noble&rft.aufirst=S&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1382.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 11, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Appley Bridge Meteorite; carbonaceous chondrites; Chateau Renard Meteorite; chondrites; CR chondrites; droplets; Ehole Meteorite; experimental studies; H chondrites; iron; laser methods; LL chondrites; melting; metals; meteorites; nanophase iron; near-infrared spectra; optical spectra; ordinary chondrites; reflectance; SEM data; space weathering; spectra; stony meteorites; TEM data; textures; weathering ER - TY - JOUR T1 - Petrography and geochemistry of metals in Almahata Sitta ureilites AN - 911678921; 2012-004573 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Ross, A J AU - Herrin, J S AU - Mittlefehldt, D W AU - Downes, H AU - Smith, C L AU - Lee, M R AU - Jones, A P AU - Jenniskens, P AU - Shaddad, M H AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2720 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - stony meteorites KW - cobalt KW - mass spectra KW - silicon KW - platinum group KW - melts KW - iridium KW - meteorites KW - grain boundaries KW - Almahata Sitta Meteorite KW - spectra KW - chemical composition KW - geochemistry KW - palladium KW - textures KW - phosphorus KW - siderophile elements KW - ureilite KW - achondrites KW - ICP mass spectra KW - ultrastructure KW - metals KW - fragments KW - nickel KW - petrography KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911678921?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Petrography+and+geochemistry+of+metals+in+Almahata+Sitta+ureilites&rft.au=Ross%2C+A+J%3BHerrin%2C+J+S%3BMittlefehldt%2C+D+W%3BDownes%2C+H%3BSmith%2C+C+L%3BLee%2C+M+R%3BJones%2C+A+P%3BJenniskens%2C+P%3BShaddad%2C+M+H%3BAnonymous&rft.aulast=Ross&rft.aufirst=A&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2720.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 11, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; Almahata Sitta Meteorite; chemical composition; cobalt; fragments; geochemistry; grain boundaries; ICP mass spectra; iridium; mass spectra; melts; metals; meteorites; nickel; palladium; petrography; phosphorus; platinum group; siderophile elements; silicon; spectra; stony meteorites; textures; ultrastructure; ureilite ER - TY - JOUR T1 - Oxygen isotope systematics of Almahata Sitta AN - 911678500; 2012-004572 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Kita, N T AU - Goodrich, C A AU - Zolensky, M E AU - Herrin, J S AU - Shaddad, M H AU - Jenniskens, P AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1491 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - pigeonite KW - magnesium KW - stony meteorites KW - oxygen KW - ion probe data KW - polymict ureilite KW - isotopes KW - mass spectra KW - olivine group KW - stable isotopes KW - meteorites KW - pyroxene group KW - clinopyroxene KW - olivine KW - orthosilicates KW - Almahata Sitta Meteorite KW - spectra KW - O-17/O-16 KW - chain silicates KW - alkaline earth metals KW - Mg number KW - isotope ratios KW - O-18/O-16 KW - ureilite KW - achondrites KW - nesosilicates KW - metals KW - homogeneous materials KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911678500?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Oxygen+isotope+systematics+of+Almahata+Sitta&rft.au=Kita%2C+N+T%3BGoodrich%2C+C+A%3BZolensky%2C+M+E%3BHerrin%2C+J+S%3BShaddad%2C+M+H%3BJenniskens%2C+P%3BAnonymous&rft.aulast=Kita&rft.aufirst=N&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1491.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 16 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 11, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; alkaline earth metals; Almahata Sitta Meteorite; chain silicates; clinopyroxene; homogeneous materials; ion probe data; isotope ratios; isotopes; magnesium; mass spectra; metals; meteorites; Mg number; nesosilicates; O-17/O-16; O-18/O-16; olivine; olivine group; orthosilicates; oxygen; pigeonite; polymict ureilite; pyroxene group; silicates; spectra; stable isotopes; stony meteorites; ureilite ER - TY - JOUR T1 - Dust removal on Mars using laser-induced breakdown spectroscopy AN - 911678213; 2012-004479 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Graff, T G AU - Morris, R V AU - Clegg, S M AU - Wiens, R C AU - Anderson, R B AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1916 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - ChemCam instrument KW - experimental studies KW - dust removal KW - laser-induced breakdown spectroscopy KW - laser methods KW - in situ KW - clastic sediments KW - Mars KW - emission spectroscopy KW - terrestrial planets KW - planets KW - laboratory studies KW - dust KW - sediments KW - Mars Science Laboratory KW - thickness KW - spectroscopy KW - instruments KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911678213?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Dust+removal+on+Mars+using+laser-induced+breakdown+spectroscopy&rft.au=Graff%2C+T+G%3BMorris%2C+R+V%3BClegg%2C+S+M%3BWiens%2C+R+C%3BAnderson%2C+R+B%3BAnonymous&rft.aulast=Graff&rft.aufirst=T&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1916.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 22, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - ChemCam instrument; clastic sediments; dust; dust removal; emission spectroscopy; experimental studies; in situ; instruments; laboratory studies; laser methods; laser-induced breakdown spectroscopy; Mars; Mars Science Laboratory; planets; remote sensing; sediments; spectroscopy; terrestrial planets; thickness ER - TY - JOUR T1 - The Mars Science Laboratory organic check material AN - 911678169; 2012-004469 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Conrad, P G AU - Eigenbrode, J AU - Mogensen, C T AU - Von der Heydt, M O AU - Glavin, D P AU - Mahaffy, P M AU - Johnson, J A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2076 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - chemical analysis KW - Organic Check Material KW - amorphous materials KW - matrix KW - Mars KW - X-ray diffraction analysis KW - terrestrial planets KW - planets KW - organic compounds KW - detection KW - Sample Analysis at Mars instrument KW - standard materials KW - CheMin instrument KW - Mars Science Laboratory KW - X-ray analysis KW - ceramic materials KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911678169?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+Mars+Science+Laboratory+organic+check+material&rft.au=Conrad%2C+P+G%3BEigenbrode%2C+J%3BMogensen%2C+C+T%3BVon+der+Heydt%2C+M+O%3BGlavin%2C+D+P%3BMahaffy%2C+P+M%3BJohnson%2C+J+A%3BAnonymous&rft.aulast=Conrad&rft.aufirst=P&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2076.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 22, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - amorphous materials; ceramic materials; chemical analysis; CheMin instrument; detection; Mars; Mars Science Laboratory; matrix; Organic Check Material; organic compounds; planets; Sample Analysis at Mars instrument; standard materials; terrestrial planets; X-ray analysis; X-ray diffraction analysis ER - TY - JOUR T1 - Measuring sulfur isotope ratios from solid samples with the sample analysis at Mars instrument and the effects of dead time corrections AN - 911678164; 2012-004468 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Franz, H B AU - Mahaffy, P R AU - Kasprzak, W AU - Lyness, E AU - Raaen, E AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2800 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - isotopes KW - data processing KW - Mars KW - calibration KW - stable isotopes KW - errors KW - melanterite KW - sulfur dioxide KW - chemical analysis KW - precision KW - sulfates KW - isotope ratios KW - mass spectroscopy KW - measurement KW - calcite KW - terrestrial planets KW - planets KW - sample preparation KW - S-34/S-32 KW - Sample Analysis at Mars instrument KW - Mars Science Laboratory KW - sulfur KW - testing KW - S-33/S-32 KW - corrections KW - spectroscopy KW - carbonates KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911678164?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Measuring+sulfur+isotope+ratios+from+solid+samples+with+the+sample+analysis+at+Mars+instrument+and+the+effects+of+dead+time+corrections&rft.au=Franz%2C+H+B%3BMahaffy%2C+P+R%3BKasprzak%2C+W%3BLyness%2C+E%3BRaaen%2C+E%3BAnonymous&rft.aulast=Franz&rft.aufirst=H&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2800.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 22, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - calcite; calibration; carbonates; chemical analysis; corrections; data processing; errors; instruments; isotope ratios; isotopes; Mars; Mars Science Laboratory; mass spectroscopy; measurement; melanterite; planets; precision; S-33/S-32; S-34/S-32; Sample Analysis at Mars instrument; sample preparation; spectroscopy; stable isotopes; sulfates; sulfur; sulfur dioxide; terrestrial planets; testing ER - TY - JOUR T1 - Thermochemolysis; a new sample preparation approach for the detection of organic components of complex macromolecules in Mars rocks via gas chromatography mass spectrometry in SAM on MSL AN - 911678160; 2012-004467 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Eigenbrode, J AU - Glavin, D AU - Dworkin, J AU - Conrad, P AU - Mahaffy, P AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1460 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - chromatography KW - chemical analysis KW - gaseous phase KW - hydrolysis KW - astrobiology KW - Mars KW - biomarkers KW - temperature KW - terrestrial planets KW - planets KW - gas chromatography KW - volatiles KW - sample preparation KW - organic compounds KW - detection KW - pyrolysis KW - Sample Analysis at Mars instrument KW - Mars Science Laboratory KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911678160?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Thermochemolysis%3B+a+new+sample+preparation+approach+for+the+detection+of+organic+components+of+complex+macromolecules+in+Mars+rocks+via+gas+chromatography+mass+spectrometry+in+SAM+on+MSL&rft.au=Eigenbrode%2C+J%3BGlavin%2C+D%3BDworkin%2C+J%3BConrad%2C+P%3BMahaffy%2C+P%3BAnonymous&rft.aulast=Eigenbrode&rft.aufirst=J&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1460.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - SuppNotes - Accessed on Aug. 22, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - astrobiology; biomarkers; chemical analysis; chromatography; detection; gas chromatography; gaseous phase; hydrolysis; Mars; Mars Science Laboratory; organic compounds; planets; pyrolysis; Sample Analysis at Mars instrument; sample preparation; temperature; terrestrial planets; volatiles ER - TY - JOUR T1 - Miniature two-step laser TOF mass spectrometer with reversible ion polarity AN - 911677459; 2012-004490 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Getty, S A AU - Brinckerhoff, W B AU - Cornish, T J AU - Merrill Floyd, M A AU - Ecelberger, S A AU - Callahan, M P AU - McAdam, A AU - Elsila, J E AU - Eigenbrode, J L AU - Arevalo, R D AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2490 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - desorption KW - chemical analysis KW - laser methods KW - infrared radiation KW - mass spectroscopy KW - ionization KW - ultraviolet radiation KW - organic compounds KW - organic acids KW - time-of-flight mass spectroscopy KW - electromagnetic radiation KW - hydrocarbons KW - carboxylic acids KW - polycyclic aromatic hydrocarbons KW - two-step laser mass spectroscopy KW - spectroscopy KW - instruments KW - design KW - aromatic hydrocarbons KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911677459?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Miniature+two-step+laser+TOF+mass+spectrometer+with+reversible+ion+polarity&rft.au=Getty%2C+S+A%3BBrinckerhoff%2C+W+B%3BCornish%2C+T+J%3BMerrill+Floyd%2C+M+A%3BEcelberger%2C+S+A%3BCallahan%2C+M+P%3BMcAdam%2C+A%3BElsila%2C+J+E%3BEigenbrode%2C+J+L%3BArevalo%2C+R+D%3BAnonymous&rft.aulast=Getty&rft.aufirst=S&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2490.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 23, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aromatic hydrocarbons; carboxylic acids; chemical analysis; design; desorption; electromagnetic radiation; hydrocarbons; infrared radiation; instruments; ionization; laser methods; mass spectroscopy; organic acids; organic compounds; polycyclic aromatic hydrocarbons; spectroscopy; time-of-flight mass spectroscopy; two-step laser mass spectroscopy; ultraviolet radiation ER - TY - JOUR T1 - Compact remote Raman, fluorescence, and lidar multi-sensor instrument for characterization of planetary surfaces and atmosphere from robotic platform AN - 911677441; 2012-004487 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Abedin, M N AU - Garcia, C S AU - Refaat, T F AU - Ismail, S AU - Bradley, A T AU - Sharma, S K AU - Misra, A K AU - Robinson, B AU - Hibberd, J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2298 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - icy satellites KW - plumes KW - technology KW - laser methods KW - altitude KW - characterization KW - Mars KW - troposphere KW - exploration KW - fluorescence KW - sediments KW - satellites KW - clouds KW - Moon KW - clastic sediments KW - radar methods KW - atmosphere KW - terrestrial planets KW - Raman spectroscopy KW - planets KW - lidar methods KW - dust KW - aerosols KW - corrections KW - spectroscopy KW - instruments KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911677441?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Compact+remote+Raman%2C+fluorescence%2C+and+lidar+multi-sensor+instrument+for+characterization+of+planetary+surfaces+and+atmosphere+from+robotic+platform&rft.au=Abedin%2C+M+N%3BGarcia%2C+C+S%3BRefaat%2C+T+F%3BIsmail%2C+S%3BBradley%2C+A+T%3BSharma%2C+S+K%3BMisra%2C+A+K%3BRobinson%2C+B%3BHibberd%2C+J%3BAnonymous&rft.aulast=Abedin&rft.aufirst=M&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2298.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 23, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aerosols; altitude; atmosphere; characterization; clastic sediments; clouds; corrections; dust; exploration; fluorescence; icy satellites; instruments; laser methods; lidar methods; Mars; Moon; planets; plumes; radar methods; Raman spectroscopy; remote sensing; satellites; sediments; spectroscopy; technology; terrestrial planets; troposphere ER - TY - JOUR T1 - Opening the mid-IR window on asteroid physical properties AN - 911677207; 2012-004536 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Vernazza, P AU - King, P L AU - Izawa, M R M AU - Maturilli, A AU - Helbert, J AU - Cruikshank, D AU - Brunetto, R AU - Marchis, F AU - Binzel, R P AU - Flemming, R L AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1344 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - ordinary chondrites KW - stony meteorites KW - asteroids KW - L chondrites KW - meteorites KW - laboratory studies KW - Lutetia Asteroid KW - infrared spectroscopy KW - pyroxene group KW - enstatite chondrites KW - chondrites KW - enstatite KW - chain silicates KW - parent bodies KW - LL chondrites KW - H chondrites KW - new methods KW - physical properties KW - deconvolution KW - S-type asteroids KW - orthopyroxene KW - spectroscopy KW - reflectance KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911677207?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Opening+the+mid-IR+window+on+asteroid+physical+properties&rft.au=Vernazza%2C+P%3BKing%2C+P+L%3BIzawa%2C+M+R+M%3BMaturilli%2C+A%3BHelbert%2C+J%3BCruikshank%2C+D%3BBrunetto%2C+R%3BMarchis%2C+F%3BBinzel%2C+R+P%3BFlemming%2C+R+L%3BAnonymous&rft.aulast=Vernazza&rft.aufirst=P&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1344.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 8, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - asteroids; chain silicates; chondrites; deconvolution; enstatite; enstatite chondrites; H chondrites; infrared spectroscopy; L chondrites; laboratory studies; LL chondrites; Lutetia Asteroid; meteorites; new methods; ordinary chondrites; orthopyroxene; parent bodies; physical properties; pyroxene group; reflectance; regolith; S-type asteroids; silicates; spectroscopy; stony meteorites ER - TY - JOUR T1 - The asteroid belt and Mars' small mass explained by large-scale gas-driven migration of Jupiter AN - 911677183; 2012-004532 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Walsh, Kevin J AU - Morbidelli, Alessandro AU - Raymond, Sean N AU - O'Brien, David P AU - Mandell, Avi M AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2585 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - asteroids KW - orbits KW - Jupiter KW - Mars KW - planetesimals KW - simulation KW - protoplanetary disk KW - giant planets KW - eccentricity KW - mass KW - Saturn KW - motions KW - dynamics KW - hydrodynamics KW - outer planets KW - Neptune KW - solar system KW - migration KW - C-type asteroids KW - accretion KW - asteroid belts KW - gases KW - terrestrial planets KW - planets KW - resonance KW - Uranus KW - S-type asteroids KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911677183?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+asteroid+belt+and+Mars%27+small+mass+explained+by+large-scale+gas-driven+migration+of+Jupiter&rft.au=Walsh%2C+Kevin+J%3BMorbidelli%2C+Alessandro%3BRaymond%2C+Sean+N%3BO%27Brien%2C+David+P%3BMandell%2C+Avi+M%3BAnonymous&rft.aulast=Walsh&rft.aufirst=Kevin&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2585.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 8, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - accretion; asteroid belts; asteroids; C-type asteroids; dynamics; eccentricity; gases; giant planets; hydrodynamics; Jupiter; Mars; mass; migration; motions; Neptune; orbits; outer planets; planetesimals; planets; protoplanetary disk; resonance; S-type asteroids; Saturn; simulation; solar system; terrestrial planets; Uranus ER - TY - JOUR T1 - The 2010 ILSO-ISRU field test at Mauna Kea, Hawai'i; results from the miniaturised Moessbauer spectrometers MIMOS II and MIMOS IIA AN - 911677091; 2012-004491 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Klingelhoefer, G AU - Morris, R V AU - Blumers, M AU - Bernhardt, B AU - Graff, T AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2810 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - United States KW - MIMOS II instrument KW - Hawaii Island KW - Mauna Kea KW - Mars KW - Mossbauer spectroscopy KW - Phobos-Grunt Mission KW - Mars Exploration Rover KW - X-ray analysis KW - Miniaturized Mossbauer Spectrometers KW - high-resolution methods KW - chemical analysis KW - iron minerals KW - X-ray fluorescence KW - Hawaii County Hawaii KW - Hawaii KW - East Pacific Ocean Islands KW - MIMOS IIA instrument KW - terrestrial planets KW - planets KW - detection KW - Oceania KW - testing KW - signal-to-noise ratio KW - Polynesia KW - spectroscopy KW - instruments KW - field studies KW - 04:Extraterrestrial geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911677091?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+2010+ILSO-ISRU+field+test+at+Mauna+Kea%2C+Hawai%27i%3B+results+from+the+miniaturised+Moessbauer+spectrometers+MIMOS+II+and+MIMOS+IIA&rft.au=Klingelhoefer%2C+G%3BMorris%2C+R+V%3BBlumers%2C+M%3BBernhardt%2C+B%3BGraff%2C+T%3BAnonymous&rft.aulast=Klingelhoefer&rft.aufirst=G&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2810.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 23, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chemical analysis; detection; East Pacific Ocean Islands; field studies; Hawaii; Hawaii County Hawaii; Hawaii Island; high-resolution methods; instruments; iron minerals; Mars; Mars Exploration Rover; Mauna Kea; MIMOS II instrument; MIMOS IIA instrument; Miniaturized Mossbauer Spectrometers; Mossbauer spectroscopy; Oceania; Phobos-Grunt Mission; planets; Polynesia; signal-to-noise ratio; spectroscopy; terrestrial planets; testing; United States; X-ray analysis; X-ray fluorescence ER - TY - JOUR T1 - Visible and near-IR reflectance spectra of Mars analogue materials under arid conditions for interpretation of Martian surface mineralogy AN - 911676898; 2012-004600 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Morris, R V AU - Graff, T G AU - Achilles, C N AU - Agresti, D G AU - Ming, D W AU - Golden, D C AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2757 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - serpentine KW - near-infrared spectra KW - hyperspectral analysis KW - terrestrial environment KW - volcanic rocks KW - glasses KW - igneous rocks KW - optical spectra KW - Mars KW - laboratory studies KW - sedimentary rocks KW - serpentine group KW - zeolite group KW - framework silicates KW - spectra KW - chlorite group KW - montmorillonite KW - water KW - mineral interlayer KW - bentonite KW - arid environment KW - smectite KW - kaolinite KW - illite KW - nontronite KW - palagonite KW - clay minerals KW - terrestrial planets KW - chlorite KW - planets KW - sheet silicates KW - reflectance KW - clastic rocks KW - Mars analogs KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911676898?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Visible+and+near-IR+reflectance+spectra+of+Mars+analogue+materials+under+arid+conditions+for+interpretation+of+Martian+surface+mineralogy&rft.au=Morris%2C+R+V%3BGraff%2C+T+G%3BAchilles%2C+C+N%3BAgresti%2C+D+G%3BMing%2C+D+W%3BGolden%2C+D+C%3BAnonymous&rft.aulast=Morris&rft.aufirst=R&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2757.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Aug. 12, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - arid environment; bentonite; chlorite; chlorite group; clastic rocks; clay minerals; framework silicates; glasses; hyperspectral analysis; igneous rocks; illite; kaolinite; laboratory studies; Mars; Mars analogs; mineral interlayer; montmorillonite; near-infrared spectra; nontronite; optical spectra; palagonite; planets; reflectance; sedimentary rocks; serpentine; serpentine group; sheet silicates; silicates; smectite; spectra; terrestrial environment; terrestrial planets; volcanic rocks; water; zeolite group ER - TY - JOUR T1 - The black sheep of Haumea's collisional family AN - 911676889; 2012-004545 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cook, Jason C AU - Desch, Steven J AU - Rubin, Mark AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2503 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - density KW - collisional family KW - orbits KW - Kuiper Belt KW - differentiation KW - impacts KW - thermal history KW - simulation KW - icy planetary bodies KW - dwarf planets KW - mass KW - Haumea collisional family KW - oblique orientation KW - rotation KW - ice KW - velocity KW - Haumea dwarf planet KW - crust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911676889?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+black+sheep+of+Haumea%27s+collisional+family&rft.au=Cook%2C+Jason+C%3BDesch%2C+Steven+J%3BRubin%2C+Mark%3BAnonymous&rft.aulast=Cook&rft.aufirst=Jason&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2503.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 15 N1 - PubXState - TX N1 - SuppNotes - Accessed on Aug. 9, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - collisional family; crust; density; differentiation; dwarf planets; Haumea collisional family; Haumea dwarf planet; ice; icy planetary bodies; impacts; Kuiper Belt; mass; oblique orientation; orbits; rotation; simulation; thermal history; velocity ER - TY - JOUR T1 - Field testing of the IceBreaker Mars drill in the Antarctic AN - 911676875; 2012-004459 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Paulsen, G AU - Zacny, K AU - McKay, C AU - Glass, B AU - Szczesiak, M AU - Craft, J AU - Santoro, C AU - Shasho, J AU - Davila, A AU - Marinova, M AU - Pollard, W AU - Jackson, A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1901 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - soils KW - Mars KW - cuttings KW - depth KW - Mars Phoenix Mission KW - terrestrial planets KW - planets KW - Antarctica KW - sampling KW - IceBreaker instrument KW - ice KW - McMurdo dry valleys KW - Victoria Land KW - testing KW - ground ice KW - drilling KW - cement KW - Beacon Valley KW - field studies KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911676875?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Field+testing+of+the+IceBreaker+Mars+drill+in+the+Antarctic&rft.au=Paulsen%2C+G%3BZacny%2C+K%3BMcKay%2C+C%3BGlass%2C+B%3BSzczesiak%2C+M%3BCraft%2C+J%3BSantoro%2C+C%3BShasho%2C+J%3BDavila%2C+A%3BMarinova%2C+M%3BPollard%2C+W%3BJackson%2C+A%3BAnonymous&rft.aulast=Paulsen&rft.aufirst=G&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1901.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 19, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Antarctica; Beacon Valley; cement; cuttings; depth; drilling; field studies; ground ice; ice; IceBreaker instrument; Mars; Mars Phoenix Mission; McMurdo dry valleys; planets; sampling; soils; terrestrial planets; testing; Victoria Land ER - TY - JOUR T1 - In-situ XRF measurements in lunar surface exploration using Apollo samples as a standard AN - 911676835; 2012-004509 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Young, K E AU - Evans, C AU - Allen, C AU - Mosie, A AU - Hodges, K V AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2121 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - technology KW - volcanic rocks KW - igneous rocks KW - calibration KW - Apollo Program KW - iron KW - extravehicular vehicles KW - major elements KW - sampling KW - standard materials KW - basalts KW - X-ray analysis KW - heterogeneity KW - soils KW - chemical analysis KW - in situ KW - X-ray fluorescence KW - Moon KW - lunar samples KW - heterogeneous materials KW - titanium KW - metals KW - homogeneity KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911676835?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=In-situ+XRF+measurements+in+lunar+surface+exploration+using+Apollo+samples+as+a+standard&rft.au=Young%2C+K+E%3BEvans%2C+C%3BAllen%2C+C%3BMosie%2C+A%3BHodges%2C+K+V%3BAnonymous&rft.aulast=Young&rft.aufirst=K&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2121.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 25, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Apollo Program; basalts; calibration; chemical analysis; extravehicular vehicles; heterogeneity; heterogeneous materials; homogeneity; igneous rocks; in situ; instruments; iron; lunar samples; major elements; metals; Moon; sampling; soils; standard materials; technology; titanium; volcanic rocks; X-ray analysis; X-ray fluorescence ER - TY - JOUR T1 - XTRA; Extraterrestrial Regolith Analyzer AN - 911676829; 2012-004508 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Sarrazin, P AU - Taylor, G J AU - Blake, D AU - Vaniman, D AU - Bish, D AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2280 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - technology KW - stony meteorites KW - asteroids KW - X-ray diffraction analysis KW - meteorites KW - mineral composition KW - Mercury Planet KW - X-ray analysis KW - chondrites KW - lunar soils KW - X-ray fluorescence KW - Moon KW - grain size KW - carbonaceous chondrites KW - geometry KW - terrestrial planets KW - planets KW - charge-coupled device KW - testing KW - Extraterrestrial Regolith Analyzer KW - accuracy KW - regolith KW - instruments KW - design KW - XTRA KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911676829?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=XTRA%3B+Extraterrestrial+Regolith+Analyzer&rft.au=Sarrazin%2C+P%3BTaylor%2C+G+J%3BBlake%2C+D%3BVaniman%2C+D%3BBish%2C+D%3BAnonymous&rft.aulast=Sarrazin&rft.aufirst=P&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2280.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 25, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - accuracy; asteroids; carbonaceous chondrites; charge-coupled device; chondrites; design; Extraterrestrial Regolith Analyzer; geometry; grain size; instruments; lunar soils; Mercury Planet; meteorites; mineral composition; Moon; planets; regolith; stony meteorites; technology; terrestrial planets; testing; X-ray analysis; X-ray diffraction analysis; X-ray fluorescence; XTRA ER - TY - JOUR T1 - Planetary geochemistry techniques; Probing In-situ with Neutron and Gamma rays (PING) instrument AN - 911676802; 2012-004502 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Parsons, A AU - Bodnarik, J AU - Burger, D AU - Evans, L AU - Floyd, S AU - Lim, L AU - McClanahan, T AU - Namkung, M AU - Nowicki, S AU - Schweitzer, J AU - Starr, R AU - Trombka, J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2379 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - experimental studies KW - chemical analysis KW - technology KW - in situ KW - development KW - Moon KW - thermal neutrons KW - Probing In-situ with Neutron and Gamma rays instrument KW - igneous rocks KW - PING instrument KW - granites KW - Mars KW - terrestrial planets KW - planets KW - plutonic rocks KW - neutrons KW - neutron probe KW - gamma rays KW - epithermal neutrons KW - geochemistry KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911676802?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Planetary+geochemistry+techniques%3B+Probing+In-situ+with+Neutron+and+Gamma+rays+%28PING%29+instrument&rft.au=Parsons%2C+A%3BBodnarik%2C+J%3BBurger%2C+D%3BEvans%2C+L%3BFloyd%2C+S%3BLim%2C+L%3BMcClanahan%2C+T%3BNamkung%2C+M%3BNowicki%2C+S%3BSchweitzer%2C+J%3BStarr%2C+R%3BTrombka%2C+J%3BAnonymous&rft.aulast=Parsons&rft.aufirst=A&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2379.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 1 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 23, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chemical analysis; development; epithermal neutrons; experimental studies; gamma rays; geochemistry; granites; igneous rocks; in situ; instruments; Mars; Moon; neutron probe; neutrons; PING instrument; planets; plutonic rocks; Probing In-situ with Neutron and Gamma rays instrument; technology; terrestrial planets; thermal neutrons ER - TY - JOUR T1 - Stable chlorine isotopes and elemental chlorine by thermal ionization mass spectrometry and ion chromatography; Martian meteorites, carbonaceous chondrites and standard rocks AN - 911676723; 2012-004557 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nakamura, N AU - Nyquist, L E AU - Reese, Y AU - Shih, C Y AU - Fujitani, T AU - Okano, O AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2513 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - methods KW - isotope fractionation KW - nakhlite KW - stony meteorites KW - isotopes KW - Martian meteorites KW - thermal ionization mass spectra KW - halogens KW - mass spectra KW - CV chondrites KW - Nakhla Meteorite KW - stable isotopes KW - Murchison Meteorite KW - Allende Meteorite KW - SNC Meteorites KW - meteorites KW - ion chromatography KW - MIL 03346 KW - spectra KW - chondrites KW - Miller Range Meteorites KW - chlorine KW - chromatography KW - chemical analysis KW - isotope ratios KW - mass spectroscopy KW - thermal metamorphism KW - carbonaceous chondrites KW - metamorphism KW - achondrites KW - sample preparation KW - thermal ionization mass spectroscopy KW - shergottite KW - Cl-37/Cl-35 KW - Zagami Meteorite KW - CK chondrites KW - CM chondrites KW - Kobe Meteorite KW - spectroscopy KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911676723?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Stable+chlorine+isotopes+and+elemental+chlorine+by+thermal+ionization+mass+spectrometry+and+ion+chromatography%3B+Martian+meteorites%2C+carbonaceous+chondrites+and+standard+rocks&rft.au=Nakamura%2C+N%3BNyquist%2C+L+E%3BReese%2C+Y%3BShih%2C+C+Y%3BFujitani%2C+T%3BOkano%2C+O%3BAnonymous&rft.aulast=Nakamura&rft.aufirst=N&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2513.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 16 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Aug. 9, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; Allende Meteorite; carbonaceous chondrites; chemical analysis; chlorine; chondrites; chromatography; CK chondrites; Cl-37/Cl-35; CM chondrites; CV chondrites; halogens; ion chromatography; isotope fractionation; isotope ratios; isotopes; Kobe Meteorite; Martian meteorites; mass spectra; mass spectroscopy; metamorphism; meteorites; methods; MIL 03346; Miller Range Meteorites; Murchison Meteorite; Nakhla Meteorite; nakhlite; sample preparation; shergottite; SNC Meteorites; spectra; spectroscopy; stable isotopes; stony meteorites; thermal ionization mass spectra; thermal ionization mass spectroscopy; thermal metamorphism; Zagami Meteorite ER - TY - JOUR T1 - MESSENGER at Mercury; flyby accomplishments and orbital observing plans AN - 911676191; 2012-004559 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Solomon, Sean C AU - McNutt, Ralph L, Jr AU - Bedini, Peter D AU - Anderson, Brian J AU - Blewett, David T AU - Evans, Larry G AU - Gold, Robert E AU - Krimigis, Stamatios M AU - Murchie, Scott L AU - Nittler, Larry R AU - Phillips, Roger J AU - Prockter, Louise M AU - Slavin, James A AU - Zuber, Maria T AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1781 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - calcium KW - magnesium KW - volcanic rocks KW - impact features KW - igneous rocks KW - MErcury Surface, Space ENvironment, GEochemistry, and Ranging KW - magnetic field KW - exosphere KW - gravity field KW - topography KW - volcanism KW - Mercury Planet KW - basins KW - orbital observations KW - ellipticity KW - chemical composition KW - alkaline earth metals KW - equatorial region KW - alkali metals KW - sodium KW - terrestrial planets KW - pyroclastics KW - planets KW - volatiles KW - contraction KW - metals KW - impact craters KW - MESSENGER Mission KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911676191?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=MESSENGER+at+Mercury%3B+flyby+accomplishments+and+orbital+observing+plans&rft.au=Solomon%2C+Sean+C%3BMcNutt%2C+Ralph+L%2C+Jr%3BBedini%2C+Peter+D%3BAnderson%2C+Brian+J%3BBlewett%2C+David+T%3BEvans%2C+Larry+G%3BGold%2C+Robert+E%3BKrimigis%2C+Stamatios+M%3BMurchie%2C+Scott+L%3BNittler%2C+Larry+R%3BPhillips%2C+Roger+J%3BProckter%2C+Louise+M%3BSlavin%2C+James+A%3BZuber%2C+Maria+T%3BAnonymous&rft.aulast=Solomon&rft.aufirst=Sean&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1781.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 38 N1 - PubXState - TX N1 - SuppNotes - Accessed on Aug. 9, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkali metals; alkaline earth metals; basins; calcium; chemical composition; contraction; ellipticity; equatorial region; exosphere; gravity field; igneous rocks; impact craters; impact features; instruments; magnesium; magnetic field; Mercury Planet; MErcury Surface, Space ENvironment, GEochemistry, and Ranging; MESSENGER Mission; metals; orbital observations; planets; pyroclastics; sodium; terrestrial planets; topography; volatiles; volcanic rocks; volcanism ER - TY - JOUR T1 - Seismic evidence for the lunar core AN - 911676188; 2012-004589 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Weber, R C AU - Lin, P AU - Garnero, E J AU - Williams, Q AU - Lognonne, P AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1903 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - P-waves KW - moonquakes KW - partial melting KW - mantle KW - elastic waves KW - Apollo Program KW - core-mantle boundary KW - lower mantle KW - interfaces KW - inner core KW - seismograms KW - body waves KW - seismology KW - Passive Seismic Experiment KW - Moon KW - geophysical methods KW - depth KW - seismic methods KW - outer core KW - models KW - planetary interiors KW - lunar mantle KW - core KW - seismic waves KW - S-waves KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911676188?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Seismic+evidence+for+the+lunar+core&rft.au=Weber%2C+R+C%3BLin%2C+P%3BGarnero%2C+E+J%3BWilliams%2C+Q%3BLognonne%2C+P%3BAnonymous&rft.aulast=Weber&rft.aufirst=R&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1903.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 11, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Apollo Program; body waves; core; core-mantle boundary; depth; elastic waves; geophysical methods; inner core; interfaces; lower mantle; lunar mantle; mantle; models; Moon; moonquakes; outer core; P-waves; partial melting; Passive Seismic Experiment; planetary interiors; S-waves; seismic methods; seismic waves; seismograms; seismology ER - TY - JOUR T1 - Detection limit of smectite by CheMin IV laboratory instrument; preliminary implications for CheMin on the Mars Science Laboratory mission AN - 911675502; 2012-004618 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Achilles, C N AU - Ming, D W AU - Morris, R V AU - Blake, D F AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2671 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - X-ray fluorescence KW - detection limit KW - smectite KW - olivine group KW - Mars KW - X-ray diffraction analysis KW - clay minerals KW - terrestrial planets KW - nesosilicates KW - planets KW - laboratory studies KW - CheMin IV laboratory instrument KW - mixing KW - olivine KW - CheMin instrument KW - orthosilicates KW - Mars Science Laboratory KW - sheet silicates KW - instruments KW - montmorillonite KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911675502?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Detection+limit+of+smectite+by+CheMin+IV+laboratory+instrument%3B+preliminary+implications+for+CheMin+on+the+Mars+Science+Laboratory+mission&rft.au=Achilles%2C+C+N%3BMing%2C+D+W%3BMorris%2C+R+V%3BBlake%2C+D+F%3BAnonymous&rft.aulast=Achilles&rft.aufirst=C&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2671.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 18, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - CheMin instrument; CheMin IV laboratory instrument; clay minerals; detection limit; instruments; laboratory studies; Mars; Mars Science Laboratory; mixing; montmorillonite; nesosilicates; olivine; olivine group; orthosilicates; planets; sheet silicates; silicates; smectite; terrestrial planets; X-ray diffraction analysis; X-ray fluorescence ER - TY - JOUR T1 - A comparison of multivariate and pre-processing methods for quantitative laser-induced breakdown spectroscopy of geologic samples AN - 911675498; 2012-004614 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Anderson, R B AU - Morris, R V AU - Clegg, S M AU - Bell, J F, III AU - Humphries, S D AU - Wiens, R C AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1308 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - volcanic rocks KW - laser-induced breakdown spectroscopy KW - igneous rocks KW - data processing KW - Mars KW - calibration KW - plutonic rocks KW - errors KW - quantitative analysis KW - multivariate analysis KW - silica KW - basalts KW - neural networks KW - chemical composition KW - ChemCam instrument KW - grain size KW - statistical analysis KW - emission spectroscopy KW - terrestrial planets KW - planets KW - artificial intelligence KW - silicate rocks KW - gabbros KW - spectroscopy KW - diabase KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911675498?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=A+comparison+of+multivariate+and+pre-processing+methods+for+quantitative+laser-induced+breakdown+spectroscopy+of+geologic+samples&rft.au=Anderson%2C+R+B%3BMorris%2C+R+V%3BClegg%2C+S+M%3BBell%2C+J+F%2C+III%3BHumphries%2C+S+D%3BWiens%2C+R+C%3BAnonymous&rft.aulast=Anderson&rft.aufirst=R&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1308.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 15, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - artificial intelligence; basalts; calibration; ChemCam instrument; chemical composition; data processing; diabase; emission spectroscopy; errors; gabbros; grain size; igneous rocks; instruments; laser-induced breakdown spectroscopy; Mars; multivariate analysis; neural networks; planets; plutonic rocks; quantitative analysis; silica; silicate rocks; spectroscopy; statistical analysis; terrestrial planets; volcanic rocks ER - TY - JOUR T1 - Antarctic ice-shelf calving triggered by the Honshu (Japan) earthquake and tsunami, March 2011 AN - 911163224; 16110828 AB - We use European Space Agency Envisat data to present the first observational evidence that a Northern Hemisphere tsunami triggered Antarctic ice-shelf calving more than 13000 km away. The Honshu tsunami of 11 March 2011 traversed the Pacific Ocean in 46 years. This event further illustrates the growing evidence of ocean-wave impact on Antarctic calving and emphasizes the teleconnection between the Antarctic ice sheet and events as far away as the Northern Hemisphere. JF - Journal of Glaciology AU - Brunt, K M AU - Okal, E A AU - MacAyeal AD - NASA Goddard Space Flight Center/GESTAR, Code 614.1, Greenbelt, Maryland 20771, USA, kelly.m.brunt@nasa.gov Y1 - 2011 PY - 2011 DA - 2011 SP - 785 EP - 788 VL - 57 IS - 205 SN - 0022-1430, 0022-1430 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Aqualine Abstracts; Oceanic Abstracts; Meteorological & Geoastrophysical Abstracts KW - ESA satellite, ENVISAT KW - Earthquakes KW - Antarctic KW - Calving KW - Tsunamis KW - INW, Japan, Honshu KW - Teleconnections KW - Marine KW - European Space Agency KW - Antarctic ice sheet KW - Sea ice KW - Fronts KW - Oceans KW - Glaciation KW - Shelf fronts KW - AQ 00001:Water Resources and Supplies KW - Q2 09270:Seismology KW - O 3010:Geology and Geophysics KW - M2 551.326:Floating Ice (551.326) KW - SW 0820:Snow, ice and frost UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911163224?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Glaciology&rft.atitle=Antarctic+ice-shelf+calving+triggered+by+the+Honshu+%28Japan%29+earthquake+and+tsunami%2C+March+2011&rft.au=Brunt%2C+K+M%3BOkal%2C+E+A%3BMacAyeal&rft.aulast=Brunt&rft.aufirst=K&rft.date=2011-01-01&rft.volume=57&rft.issue=205&rft.spage=785&rft.isbn=&rft.btitle=&rft.title=Journal+of+Glaciology&rft.issn=00221430&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-12-01 N1 - Last updated - 2014-05-02 N1 - SubjectsTermNotLitGenreText - Earthquakes; Sea ice; Shelf fronts; Glaciation; Tsunamis; Calving; Teleconnections; Antarctic ice sheet; ESA satellite, ENVISAT; European Space Agency; Fronts; Oceans; Antarctic; INW, Japan, Honshu; Marine ER - TY - JOUR T1 - Analysis of ice plains of the Filchner-Ronne Ice Shelf, Antarctica, using ICESat laser altimetry AN - 911159349; 16110847 AB - We use repeat-track laser altimeter data from the Ice, Cloud and land Elevation Satellite (ICESat) to map the grounding zone (GZ) of the Filchner-Ronne Ice Shelf, Antarctica. Ice flexure in the GZ occurs as the ice shelf responds to ocean-height changes due primarily to tides. We have identified three 'ice plains', regions of low surface slope near the GZ where the ice is close to hydrostatic equilibrium: one on Institute Ice Stream; another to its east; and another west of Foundation Ice Stream. The vertical information from repeated ICESat tracks enables us to study the topography, state of flotation and flexure characteristics across these features. In regions of ephemeral grounding, tidal migration of the grounding line allows us to estimate bed slope ( similar to 1-2 x 10 super(-3)). From these studies we develop a classification scheme for ice plains, expressed in terms of the evolution, or 'life cycle', of these features. A lightly grounded ice plain progresses to a state of ephemeral grounding as the ice sheet thins near the GZ. Once sufficient thinning has occurred, the ice plain becomes a fully floating, relict ice plain with an undulated surface topography similar to that of lightly grounded ice; we expect viscous relaxation to a smooth ice-shelf surface to occur over a timescale of decades. Our improved insight into ice-plain evolution suggests added complexity in modeling ice in the vicinity of the GZ, and a role for ice-plain observations as a guide to relatively rapid changes in ice-sheet mass balance. JF - Journal of Glaciology AU - Brunt, K M AU - Fricker, HA AU - Padman, L AD - NASA Goddard Space Flight Center/GESTAR, 8800 Greenbelt Road, Greenbelt, Maryland 20771-9997, USA, kelly.m.brunt@nasa.gov Y1 - 2011 PY - 2011 DA - 2011 SP - 965 EP - 975 VL - 57 IS - 205 SN - 0022-1430, 0022-1430 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Aqualine Abstracts; Meteorological & Geoastrophysical Abstracts KW - Floating Ice KW - Groundings KW - Life cycle KW - Laser altimeter KW - Streams KW - Classification KW - Continental shelves KW - Altimeters KW - Ice clouds KW - Slopes KW - Topography KW - Marine KW - PSW, Antarctica, Filchner-Ronne Ice Shelf KW - Surface topography KW - Ice streams KW - Model Studies KW - Clouds KW - PS, Antarctica KW - Sea ice KW - Ice sheets KW - Stream KW - Glaciation KW - Hydrostatics KW - Lasers KW - Evolution KW - M2 551.324:Land Ice/Glaciers (551.324) KW - SW 0835:Streamflow and runoff KW - AQ 00003:Monitoring and Analysis of Water and Wastes KW - Q2 09167:Tides, surges and sea level UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911159349?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Glaciology&rft.atitle=Analysis+of+ice+plains+of+the+Filchner-Ronne+Ice+Shelf%2C+Antarctica%2C+using+ICESat+laser+altimetry&rft.au=Brunt%2C+K+M%3BFricker%2C+HA%3BPadman%2C+L&rft.aulast=Brunt&rft.aufirst=K&rft.date=2011-01-01&rft.volume=57&rft.issue=205&rft.spage=965&rft.isbn=&rft.btitle=&rft.title=Journal+of+Glaciology&rft.issn=00221430&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-12-01 N1 - Last updated - 2014-05-02 N1 - SubjectsTermNotLitGenreText - Sea ice; Classification; Groundings; Surface topography; Continental shelves; Stream; Glaciation; Hydrostatics; Life cycle; Ice sheets; Ice clouds; Lasers; Ice streams; Laser altimeter; Topography; Clouds; Floating Ice; Altimeters; Slopes; Streams; Evolution; Model Studies; PS, Antarctica; PSW, Antarctica, Filchner-Ronne Ice Shelf; Marine ER - TY - JOUR T1 - Microbial community structure across the tree of life in the extreme Rio Tinto AN - 904481348; 14874197 AB - Understanding biotic versus abiotic forces that shape community structure is a fundamental aim of microbial ecology. The acidic and heavy metal extreme Rio Tinto (RT) in southwestern Spain provides a rare opportunity to conduct an ecosystem-wide biodiversity inventory at the level of all three domains of life, because diversity there is low and almost exclusively microbial. Despite improvements in high-throughput DNA sequencing, environmental biodiversity studies that use molecular metrics and consider entire ecosystems are rare. These studies can be prohibitively expensive if domains are considered separately, and differences in copy number of eukaryotic ribosomal RNA genes can bias estimates of relative abundances of phylotypes recovered. In this study we have overcome these barriers (1) by targeting all three domains in a single polymerase chain reaction amplification and (2) by using a replicated sampling design that allows for incidence-based methods to extract measures of richness and carry out downstream analyses that address community structuring effects. Our work showed that combined bacterial and archaeal richness is an order of magnitude higher than eukaryotic richness. We also found that eukaryotic richness was highest at the most extreme sites, whereas combined bacterial and archaeal richness was highest at less extreme sites. Quantitative community phylogenetics showed abiotic forces to be primarily responsible for shaping the RT community structure. Canonical correspondence analysis revealed co-occurrence of obligate symbionts and their putative hosts that may contribute to biotic forces shaping community structure and may further provide a possible mechanism for persistence of certain low-abundance bacteria encountered in the RT. JF - ISME Journal AU - Amaral-Zettler, Linda A AU - Zettler, Erik R AU - Theroux, Susanna M AU - Palacios, Carmen AU - Aguilera, Angeles AU - Amils, Ricardo AD - [1] Josephine Bay Paul Center, Marine Biological Laboratory, Woods Hole, MA, USA [2] NASA Astrobiology Institute, Marine Biological Laboratory, Woods Hole, MA, USA [3] Department of Geological Sciences, Brown University, Providence, RI, USA Y1 - 2011/01// PY - 2011 DA - Jan 2011 SP - 42 EP - 50 PB - Nature Publishing Group, The Macmillan Building London N1 9XW UK VL - 5 IS - 1 SN - 1751-7362, 1751-7362 KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Phylogeny KW - rRNA KW - Inventories KW - DNA sequencing KW - Symbionts KW - Community structure KW - Heavy metals KW - Biodiversity KW - Polymerase chain reaction KW - Sampling KW - copy number KW - A 01450:Environmental Pollution & Waste Treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/904481348?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ISME+Journal&rft.atitle=Microbial+community+structure+across+the+tree+of+life+in+the+extreme+Rio+Tinto&rft.au=Amaral-Zettler%2C+Linda+A%3BZettler%2C+Erik+R%3BTheroux%2C+Susanna+M%3BPalacios%2C+Carmen%3BAguilera%2C+Angeles%3BAmils%2C+Ricardo&rft.aulast=Amaral-Zettler&rft.aufirst=Linda&rft.date=2011-01-01&rft.volume=5&rft.issue=1&rft.spage=42&rft.isbn=&rft.btitle=&rft.title=ISME+Journal&rft.issn=17517362&rft_id=info:doi/10.1038%2Fismej.2010.101 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Last updated - 2012-03-29 N1 - SubjectsTermNotLitGenreText - Phylogeny; Inventories; rRNA; DNA sequencing; Symbionts; Heavy metals; Community structure; Polymerase chain reaction; Biodiversity; Sampling; copy number DO - http://dx.doi.org/10.1038/ismej.2010.101 ER - TY - JOUR T1 - Space Toxicology: Protecting Human Health During Space Operations AN - 904469242; 14388351 AB - Space toxicology is a unique and targeted discipline for spaceflight, space habitation, and occupation of celestial bodies including planets, moons, and asteroids. Astronaut explorers face distinctive health challenges and limited resources for rescue and medical care during space operation. A central goal of space toxicology is to protect the health of the astronaut by assessing potential chemical exposures during spaceflight and setting safe limits that will protect the astronaut against chemical exposures while in a physiologically altered state. In order to maintain sustained occupation in space on the International Space Station (ISS), toxicological risks must be assessed and managed within the context of isolation, continuous exposures, reuse of air and water, limited rescue options, and the need to use highly toxic compounds for propulsion and other purposes. As we begin to explore other celestial bodies, in situ toxicological risks, such as inhalation of reactive mineral dusts, must also be managed. JF - International Journal of Toxicology AU - Khan-Mayberry, Noreen AU - James, John T AU - Tyl, Rochelle AU - Lam, Chiu-wing AD - NASA Johnson Space Center, Houston, TX, USA Y1 - 2011 PY - 2011 DA - 2011 SP - 3 EP - 18 PB - Taylor & Francis Group Ltd., 2 Park Square Oxford OX14 4RN UK VL - 30 IS - 1 SN - 1091-5818, 1091-5818 KW - Toxicology Abstracts KW - Inhalation KW - Space flight KW - Moon KW - Minerals KW - Dust KW - X 24350:Industrial Chemicals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/904469242?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Toxicology&rft.atitle=Space+Toxicology%3A+Protecting+Human+Health+During+Space+Operations&rft.au=Khan-Mayberry%2C+Noreen%3BJames%2C+John+T%3BTyl%2C+Rochelle%3BLam%2C+Chiu-wing&rft.aulast=Khan-Mayberry&rft.aufirst=Noreen&rft.date=2011-01-01&rft.volume=30&rft.issue=1&rft.spage=3&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Toxicology&rft.issn=10915818&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Last updated - 2012-03-29 N1 - SubjectsTermNotLitGenreText - Inhalation; Space flight; Moon; Minerals; Dust ER - TY - JOUR T1 - 2001-2009 elevation and mass losses in the Larsen A and B embayments, Antarctic Peninsula AN - 899160932; 15775756 AB - We investigate the elevation and mass-balance response of tributary glaciers following the loss of the Larsen A and B ice shelves, Antarctic Peninsula (in 1995 and 2002 respectively). Our study uses MODIS imagery to track ice extent, and ASTER and SPOT5 digital elevation models (DEMs) plus ATM and ICESat laser altimetry to track elevation changes, spanning the period 2001-09. The measured Larsen B tributary glaciers (Hektoria, Green, Evans, Punchbowl, Jorum and Crane) lost up to 160 m in elevation during 2001-06, and thinning continued into 2009. Elevation changes were small for the more southerly Flask and Leppard Glaciers, which are still constrained by a Larsen B ice shelf remnant. In the northern embayment, continued thinning of >3 m a super(-1) on Drygalski Glacier, 14 years after the Larsen A ice shelf disintegrated, suggests that mass losses for the exposed Larsen B tributaries will continue for years into the future. Grounded ice volume losses exceed 13 km super(3) for Crane Glacier and 30 km super(3) for the Hektoria-Green-Evans glaciers. The combined mean loss rate for 2001-06 is at least 11.2 Gt a super(-1). Our values differ significantly from published mass-budget-based estimates for these embayments, but are a reasonable fraction of GRACE-derived rates for the region ( similar to 40 Gt a super(-1)). JF - Journal of Glaciology AU - Shuman, CA AU - Berthier, E AU - Scambos, T A AD - UMBC-GEST, NASA Goddard Space Flight Center, Greenbelt, Code 698, Maryland 20771, USA, christopher.a.shuman@nasa.gov Y1 - 2011 PY - 2011 DA - 2011 SP - 737 EP - 754 VL - 57 IS - 204 SN - 0022-1430, 0022-1430 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Aqualine Abstracts; Meteorological & Geoastrophysical Abstracts KW - Glaciers KW - Antarctic KW - MODIS (Moderate Resolution Imaging Spectrometer) KW - Glacier Mass Balance KW - Ice shelves KW - Tributaries KW - Ice volume KW - Altimetry KW - Model Studies KW - Satellite data KW - Elevation KW - Antarctica, Antarctic Peninsula KW - Lasers KW - AQ 00001:Water Resources and Supplies KW - M2 551.324:Land Ice/Glaciers (551.324) KW - Q2 09150:Ice KW - SW 0820:Snow, ice and frost UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/899160932?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Glaciology&rft.atitle=2001-2009+elevation+and+mass+losses+in+the+Larsen+A+and+B+embayments%2C+Antarctic+Peninsula&rft.au=Shuman%2C+CA%3BBerthier%2C+E%3BScambos%2C+T+A&rft.aulast=Shuman&rft.aufirst=CA&rft.date=2011-01-01&rft.volume=57&rft.issue=204&rft.spage=737&rft.isbn=&rft.btitle=&rft.title=Journal+of+Glaciology&rft.issn=00221430&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-10-01 N1 - Last updated - 2014-05-02 N1 - SubjectsTermNotLitGenreText - Glaciers; Ice volume; Ice shelves; Altimetry; Tributaries; Satellite data; MODIS (Moderate Resolution Imaging Spectrometer); Lasers; Elevation; Glacier Mass Balance; Antarctic; Model Studies; Antarctica, Antarctic Peninsula ER - TY - JOUR T1 - Spectroscopy of Yamato 984028 AN - 898162709; 2011-089370 JF - Polar Science AU - Dyar, M D AU - Glotch, T D AU - Lane, M D AU - Wopenka, B AU - Tucker, J M AU - Seaman, S J AU - Marchand, G J AU - Klima, R AU - Hiroi, T AU - Bishop, J L AU - Pieters, C AU - Sunshine, J Y1 - 2011/01// PY - 2011 DA - January 2011 SP - 530 EP - 549 PB - Elsevier for National Institute of Polar Research, Japan, Tokyo VL - 4 IS - 4 SN - 1873-9652, 1873-9652 KW - Yamato Meteorites KW - stony meteorites KW - Martian meteorites KW - igneous rocks KW - achondrites KW - TEM data KW - ultramafics KW - lherzolite KW - SNC Meteorites KW - meteorites KW - Raman spectra KW - plutonic rocks KW - mineral composition KW - Antarctica KW - shergottite KW - peridotites KW - Y 984028 KW - thermal emission KW - spectra KW - chemical composition KW - reflectance KW - Mossbauer spectra KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898162709?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Polar+Science&rft.atitle=Spectroscopy+of+Yamato+984028&rft.au=Dyar%2C+M+D%3BGlotch%2C+T+D%3BLane%2C+M+D%3BWopenka%2C+B%3BTucker%2C+J+M%3BSeaman%2C+S+J%3BMarchand%2C+G+J%3BKlima%2C+R%3BHiroi%2C+T%3BBishop%2C+J+L%3BPieters%2C+C%3BSunshine%2C+J&rft.aulast=Dyar&rft.aufirst=M&rft.date=2011-01-01&rft.volume=4&rft.issue=4&rft.spage=530&rft.isbn=&rft.btitle=&rft.title=Polar+Science&rft.issn=18739652&rft_id=info:doi/10.1016%2Fj.polar.2010.06.001 L2 - http://www.sciencedirect.com/science/journal/18739652 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 46 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - achondrites; Antarctica; chemical composition; igneous rocks; lherzolite; Martian meteorites; meteorites; mineral composition; Mossbauer spectra; peridotites; plutonic rocks; Raman spectra; reflectance; shergottite; SNC Meteorites; spectra; stony meteorites; TEM data; thermal emission; ultramafics; Y 984028; Yamato Meteorites DO - http://dx.doi.org/10.1016/j.polar.2010.06.001 ER - TY - JOUR T1 - Sm-Nd and Rb-Sr studies of lherzolitic shergottite Yamato 984028 AN - 898162701; 2011-089369 JF - Polar Science AU - Shih, C Y AU - Nyquist, L E AU - Reese, Y AU - Misawa, K Y1 - 2011/01// PY - 2011 DA - January 2011 SP - 515 EP - 529 PB - Elsevier for National Institute of Polar Research, Japan, Tokyo VL - 4 IS - 4 SN - 1873-9652, 1873-9652 KW - stony meteorites KW - isotopes KW - Martian meteorites KW - igneous rocks KW - stable isotopes KW - lherzolite KW - SNC Meteorites KW - meteorites KW - radioactive isotopes KW - plutonic rocks KW - mineral composition KW - geochronology KW - Sm-147/Nd-144 KW - Rb-87/Sr-86 KW - samarium KW - rare earths KW - chemical composition KW - alkaline earth metals KW - Yamato Meteorites KW - isotope ratios KW - rubidium KW - alkali metals KW - isochrons KW - achondrites KW - ultramafics KW - Sr-87/Sr-86 KW - Antarctica KW - shergottite KW - metals KW - peridotites KW - Y 984028 KW - neodymium KW - strontium KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898162701?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Polar+Science&rft.atitle=Sm-Nd+and+Rb-Sr+studies+of+lherzolitic+shergottite+Yamato+984028&rft.au=Shih%2C+C+Y%3BNyquist%2C+L+E%3BReese%2C+Y%3BMisawa%2C+K&rft.aulast=Shih&rft.aufirst=C&rft.date=2011-01-01&rft.volume=4&rft.issue=4&rft.spage=515&rft.isbn=&rft.btitle=&rft.title=Polar+Science&rft.issn=18739652&rft_id=info:doi/10.1016%2Fj.polar.2010.05.004 L2 - http://www.sciencedirect.com/science/journal/18739652 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 49 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - achondrites; alkali metals; alkaline earth metals; Antarctica; chemical composition; geochronology; igneous rocks; isochrons; isotope ratios; isotopes; lherzolite; Martian meteorites; metals; meteorites; mineral composition; neodymium; peridotites; plutonic rocks; radioactive isotopes; rare earths; Rb-87/Sr-86; rubidium; samarium; shergottite; Sm-147/Nd-144; SNC Meteorites; Sr-87/Sr-86; stable isotopes; stony meteorites; strontium; ultramafics; Y 984028; Yamato Meteorites DO - http://dx.doi.org/10.1016/j.polar.2010.05.004 ER - TY - JOUR T1 - FIFTY YEARS OF FLUIDIC: INJECTION FOR JET NOISE REDUCTION AN - 896227681; 15112489 AB - The paper reviews 50 years of research investigating jet noise reduction through fluidic injection. Both aqueous and gaseous injection concepts for supersonic and subsonic jet exhausts are discussed. Aqueous injection reduces jet noise by reducing main jet temperature through evaporation and main jet velocity through momentum transfer between water droplets and the main jet. In the launch vehicle environment where large quantities of fluid do not have to be carried with the vehicle, water injection is very effective at reducing excess overpressures. For in-flight use, aqueous injection is problematic as most studies show that either large quantities of water or high injection pressures are required to achieve noise reduction. The most effective noise reduction injection systems require water pressures above 2000 kPa (290 psi) and water-to-main-jet mass flow rates above 10% to achieve overall sound pressure level reductions of roughly 6 dB in the peak jet noise direction. Injection at lower pressure (roughly 1034 kPa or 150 psi) has resulted in a 1.6 EPNdb reduction in effective perceived noise level. Gaseous injection reduces noise through jet plume modifications resulting from the introduction of streamwise vorticity in the main jet. In subsonic single-stream Jets, air injection usually produces the largest overall sound pressure level reductions (roughly 2 dB) in the peak jet noise direction. In dual-stream jets, properly designed injection systems can reduce overall sound pressure levels but care must be taken to choose injector designs that limit sound pressure level increases at high frequencies. A reduction of 1.0 EPNdB has been achieved with injection into the fan and core streams. However, air injection into dual-stream subsonic jets has received little attention and the potential for noise reduction is uncertain at this time. For dual-stream supersonic jets, additional research needs to be conducted to determine if reductions can be achieved with injection pressures available from current aircraft engines. JF - Low Frequency Noise & Vibration AU - Henderson, B AD - NASA Glenn Research Center, MS 54-3, 21000 Brookpark Rd, Cleveland, OH 44135, USA Y1 - 2011///0, PY - 2011 DA - 0, 2011 SP - 83 PB - Multi-Science Publishing Co. Ltd. VL - 30 IS - 1 SN - 0263-0923, 0263-0923 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Jets KW - Noise reduction KW - Injection KW - Streams KW - Environmental factors KW - Research Priorities KW - Sounds KW - Plumes KW - Momentum Transfer KW - Photosystem I KW - Sound pressure KW - Vibrations KW - Noise KW - Momentum transfer KW - Q2 09243:Structure, mechanics and thermodynamics KW - AQ 00006:Sewage KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/896227681?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Low+Frequency+Noise+%26+Vibration&rft.atitle=FIFTY+YEARS+OF+FLUIDIC%3A+INJECTION+FOR+JET+NOISE+REDUCTION&rft.au=Henderson%2C+B&rft.aulast=Henderson&rft.aufirst=B&rft.date=2011-01-01&rft.volume=30&rft.issue=1&rft.spage=83&rft.isbn=&rft.btitle=&rft.title=Low+Frequency+Noise+%26+Vibration&rft.issn=02630923&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-08-01 N1 - Last updated - 2016-02-04 N1 - SubjectsTermNotLitGenreText - Photosystem I; Noise reduction; Environmental factors; Streams; Momentum transfer; Sound pressure; Vibrations; Research Priorities; Jets; Momentum Transfer; Noise; Sounds; Plumes; Injection ER - TY - JOUR T1 - Experimental and numerical investigations of the formation of felsic asteroidal crust AN - 885341274; 610525-19 AB - Achondrites exhibit a diverse set of petrographical and geochemical features that individually reflect distinct environments during differentiation processes on their parent asteroids. Our study reports on experimental and numerical investigations that constrain the formation of felsic asteroidal crust recorded in paired achondrites GRA 06128 and GRA 06129 (GRAs). GRAs are characterized by high abundances of sodic plagioclase, resulting in alkali-rich, felsic, whole-rock compositions. Geochemical studies suggest that the GRAs originate from a partial melt from a volatile-rich asteroid that did not segregate metallic core. We performed partial melting experiments on a synthetic, alkali-bearing, H-chondrite composition under a wide range of fO (sub 2) conditions (IW-1 to IW+2). The experiments suggest that fO (sub 2) conditions significantly influence the compositions of partial melts. Partial melts at IW-1 are distinctly enriched in SiO (sub 2) (up to 70 wt%) and depleted in FeO contents relative to those of >IW melts ( approximately 39-47 wt% SiO (sub 2) ). The silica-enriched, reduced (IW-1) melts are characterized by high alkali contents, resulting in silica-oversaturated compositions. In contrast, the silica-depleted, oxidized (>IW) melts, which are also enriched in alkali contents, have distinclty silica-undersaturated compositions. These experimental results suggest that alkali-rich, felsic, asteroidal crusts as represented by GRAs should originate from a low-degree (F = <15%, T = <1050 degrees C), relatively reduced ( approximately IW-1) partial melt from a parent body having near-chondritic compositions. We also perfomed numerical simulations for the thermal evolution of a GRAs parent body by assuming (super 26) Al and (super 60) Fe with the CAI canonical values as dominant heat sources. The numerical investigations suggest that a GRAs parent body should have accreted 0.7-1.2 Myr after CAI and reached a size of 18-50 km in radius in order to satisfy both chronological and experimental constraints of GRAs. This implies that a planetesimal that possesses a felsisc crust produced by low-degree partial melting would have intermediate characteristics regarding the size and/or timing of accretion between chondrite and highly differentiated achondrite parent bodies. JF - Mineralogical Magazine AU - Usui, T AU - Jones, J H AU - Senshu, H AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 2054 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - experimental studies KW - GRA 06128 KW - stony meteorites KW - oxygen KW - numerical models KW - iron oxides KW - asteroids KW - parent bodies KW - partial melting KW - data processing KW - GRA 06129 KW - felsic composition KW - thermal history KW - achondrites KW - fugacity KW - meteorites KW - Antarctica KW - Graves Nunataks Meteorites KW - silica KW - digital simulation KW - oxides KW - synthesis KW - crust KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/885341274?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Experimental+and+numerical+investigations+of+the+formation+of+felsic+asteroidal+crust&rft.au=Usui%2C+T%3BJones%2C+J+H%3BSenshu%2C+H%3BAnonymous&rft.aulast=Usui&rft.aufirst=T&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=2054&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/2045.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2011 N1 - Copyright - GeoRef in Process, Copyright 2012, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Last updated - 2012-07-20 N1 - SubjectsTermNotLitGenreText - achondrites; Antarctica; asteroids; crust; data processing; digital simulation; experimental studies; felsic composition; fugacity; GRA 06128; GRA 06129; Graves Nunataks Meteorites; iron oxides; meteorites; numerical models; oxides; oxygen; parent bodies; partial melting; silica; stony meteorites; synthesis; thermal history ER - TY - JOUR T1 - Subduction cycling of C-O-H volatiles from sediment melting AN - 885340829; 610524-16 AB - Sediment subduction is a key mechanism of crustal recycling and mantle-exosphere exchange of C-O-H fluids. Thus high pressure melting systematics of C-O-H bearing pelite is important. While experimental data on the melting relations of alumina-rich pelites became recently available to 23.5 GPa [1, 2], those of alumina-poor pelites are limited to 3 GPa [3, 4]. To completely understand the deep cycling of water and carbon dioxide via sediment subduction, we performed new melting experiments on a silica and alumina-poor, water-undersaturated and carbonate-saturated pelite up to 7 GPa. Piston cylinder and multi-anvil experiments are performed at 3-7 GPa and 800-1150 degrees C using a model pelite composition containing 1 wt.% H (sub 2) O and 5 wt.% CO (sub 2) in Au capsules. We bracketed the solidus temperatures, at 800-850 degrees C at 3 GPa, at 900-1000 degrees C at 5 GPa, and <1100 degrees C at 7 GPa. Cpx, garnet, and coesite are present in all the experiments, and subsolidus phases also include rutile, phengite, and calcite (sub ss) at 3 GPa and 800 degrees C and joined by kyanite at 5 GPa and 900 degrees C. The near-solidus melts at 3 GPa, 850 degrees C are hydrous rhyolite, whereas those at 5 GPa, 1000 degrees C and 7 GPa, 1100 degrees C are K-rich carbonatitic. At 5 GPa and 1100 degrees C, both silicate and carbonatite melts were present. The phengite-out boundary is located between 850 and 900 degrees C at 3 GPa and 1000 and 1100 degrees C at 5 GPa, and phengite was not present at 7 GPa and 1100 degrees C. The solidus constrained in our study is 50-100 degrees C lower than the previous experiments on pelitic compositions [1, 2]. Comparison of our melting boundaries with thermal models of slab surface temperatures suggests that water-undersaturated, carbonated pelite solidus is located near the P-T trajectories of warm subduction zones. Hence subducting pelite in cold to intermediate subducting zones likely survives melting-induced devolatilization up to approximately 200 km. Hot subduction, on the other hand, may lead to supply of K-rich carbonatitic melt flux to deep sub-arc mantle wedge. JF - Mineralogical Magazine AU - Tsuno, K AU - Dasgupta, R AU - Danielson, L AU - Righter, K AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 2036 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - silicates KW - cycles KW - oxygen KW - mantle KW - temperature KW - carbon dioxide KW - laboratory studies KW - melting KW - mica group KW - carbon KW - phengite KW - sediments KW - P-T conditions KW - water KW - experimental studies KW - pressure KW - textures KW - subduction KW - high pressure KW - volatiles KW - plate tectonics KW - hydrogen KW - slabs KW - sheet silicates KW - pelitic texture KW - anvil cells KW - high temperature KW - crust KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/885340829?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Subduction+cycling+of+C-O-H+volatiles+from+sediment+melting&rft.au=Tsuno%2C+K%3BDasgupta%2C+R%3BDanielson%2C+L%3BRighter%2C+K%3BAnonymous&rft.aulast=Tsuno&rft.aufirst=K&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=2036&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1979.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef in Process, Copyright 2012, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Number of references - 4 N1 - Last updated - 2012-07-20 N1 - SubjectsTermNotLitGenreText - anvil cells; carbon; carbon dioxide; crust; cycles; experimental studies; high pressure; high temperature; hydrogen; laboratory studies; mantle; melting; mica group; oxygen; P-T conditions; pelitic texture; phengite; plate tectonics; pressure; sediments; sheet silicates; silicates; slabs; subduction; temperature; textures; volatiles; water ER - TY - JOUR T1 - Biogeochemical impact of long-range transported dust over northern South China Sea AN - 885340731; 610524-14 AB - Transpacific transport and impact of Asian dust aerosols have been well documented (e.g. results from ACE-Asia and regional follow-on campaigns), but little is known about dust invasion to the South China Sea (SCS). On 19-21 March 2010, a fierce Asian dust storm affected large areas from the Gobi deserts to the West Pacific, including Taiwan and Hong Kong. As a pilot study of the 7-SEAS (Seven South East Asian Studies) in the northern SCS, detailed characteristics of long-range transported dust aerosols were first observed by a comprehensive set of ground-based instruments deployed at the Dongsha islands (20 degrees 42'52" N, 116 degrees 43'51" E). Aerosol measurements such as particle mass concentrations, size distribution, optical properties, hygroscopicity, and vertical profiles help illustrate the evolution of this dust outbreak. Our results indicate that these dust particles were mixed with anthropogenic and marine aerosols, and transported near the surface. Satellite assessment of biogeochemical impact of dust deposition into open oceans is hindered by our current inability in retrieving areal dust properties and ocean colors over an extensive period of time, particularly under the influence of cloudy conditions. In this paper, we analyze the changes of retrieved Chlorophyll-a (Chl-a) concentration over the northern SCS, considered as oligotophic waters in the spring, from long-term SeaWiFS measurements since 1997. Over the past decade, six long-range transported dust events are identified based on spatiotemporal evolutions of PM (sub 10) measurements from regional monitoring stations, with the aid of trajectory analysis. Multi-year composites of Chl-a imagery for dust event and non-dust background during March-April are applied to overcome insufficient retrievals of Chl-a due to cloudy environment. Due to anthropogenic modification within a shallow boundary layer off the densely populated and industrial southeast coast of China, the iron ion activation of deliquescent dust particles enhances the efficiency of fertilization for biological productivity. Compared to the West Pacific, the marine ecosystem in the northern SCS is much more susceptible to the biogeochemical impact of long-range transported Asian dust. JF - Mineralogical Magazine AU - Tsay, S C AU - Wang, S H AU - Hsu, N C AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 2035 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - Taiwan KW - Hong Kong KW - Far East KW - northern South China Sea KW - ecosystems KW - Gobi Desert KW - West Pacific KW - air pollution KW - transport KW - sampling KW - sediments KW - ecology KW - porphyrins KW - particulate materials KW - Northwest Pacific KW - Asia KW - geochemistry KW - South China Sea KW - China KW - dust storms KW - clastic sediments KW - pigments KW - human activity KW - biochemistry KW - pollution KW - chlorophyll KW - provenance KW - organic compounds KW - North Pacific KW - atmospheric transport KW - marine environment KW - Pacific Ocean KW - dust KW - aerosols KW - Dongsha Islands KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/885340731?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Biogeochemical+impact+of+long-range+transported+dust+over+northern+South+China+Sea&rft.au=Tsay%2C+S+C%3BWang%2C+S+H%3BHsu%2C+N+C%3BAnonymous&rft.aulast=Tsay&rft.aufirst=S&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=2035&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1979.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef in Process, Copyright 2012, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Last updated - 2012-07-20 N1 - SubjectsTermNotLitGenreText - aerosols; air pollution; Asia; atmospheric transport; biochemistry; China; chlorophyll; clastic sediments; Dongsha Islands; dust; dust storms; ecology; ecosystems; Far East; geochemistry; Gobi Desert; Hong Kong; human activity; marine environment; North Pacific; northern South China Sea; Northwest Pacific; organic compounds; Pacific Ocean; particulate materials; pigments; pollution; porphyrins; provenance; sampling; sediments; South China Sea; Taiwan; transport; West Pacific ER - TY - JOUR T1 - Smoke aerosol emission source analysis from satellite and airborne measurements AN - 885303008; 610500-4 AB - Accurate estimation of smoke emission source strength from active fires is essential for modeling smoke emission fluxes, transport, atmospheric interactions, and impacts on air quality and climate. For several decades, researchers have made efforts to estimate smoke emissions from ground-based measurements, but the spatial and temporal coverage is severely limited. The rapid growth of satellite measurement capability during the last decade has provided the potential to overcome these limitations by covering the entire globe for long periods of time. However, satellite remote-sensing methods are faced with new challenges as they attempt to use instantaneous observational snapshots to address continuous and highly variable processes such as fires and their emissions. The result is that, although the satellite enables more ground to be covered, uncertainties in quantifying emissions still remain, and may be even greater, compared to the ground-based methods. One of the promising ways to address this issue is the use of airborne measurements to bridge the spatial and temporal scales between the regional-scale satellite snapshots and landscape-scale, longer-duration processes of fire behavior and emissions. The ARCTAS summer campaign that was conducted in Canada in June-July 2008 provides a unique opportunity to demonstrate this approach with regard to closely exploring improved understanding of smoke emission mechanisms by remote sensing. In this talk, we will show preliminary results of using the vertical scans of plumes from the Cloud Absorption Radiometer (CAR) instrument aboard the NASA P-3 aircraft to complement the analysis of fire radiative power (FRP) and aerosol optical depth (AOD) measurements from MODIS aboard the Terra and Aqua satellites, and near-source plume-height measurements from MISR aboard Terra, to better understand the relationships between them, and elaborate the emission rates, spatial characteristics, and injection processes of smoke particulate matter. JF - Mineralogical Magazine AU - Ichoku, Charles AU - Gatebe, Charles AU - Kahn, Ralph AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1077 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - clouds KW - monitoring KW - government agencies KW - pollution KW - atmosphere KW - satellite methods KW - air pollution KW - fires KW - Canada KW - NASA KW - aerosols KW - instruments KW - ARCTAS Program KW - remote sensing KW - MODIS KW - airborne methods KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/885303008?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Smoke+aerosol+emission+source+analysis+from+satellite+and+airborne+measurements&rft.au=Ichoku%2C+Charles%3BGatebe%2C+Charles%3BKahn%2C+Ralph%3BAnonymous&rft.aulast=Ichoku&rft.aufirst=Charles&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1077&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1076.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2011 N1 - Copyright - GeoRef in Process, Copyright 2012, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Last updated - 2012-07-20 N1 - SubjectsTermNotLitGenreText - aerosols; air pollution; airborne methods; ARCTAS Program; atmosphere; Canada; clouds; fires; government agencies; instruments; MODIS; monitoring; NASA; pollution; remote sensing; satellite methods ER - TY - JOUR T1 - Observations of recent Arctic sea ice volume loss and its impact on ocean-atmosphere energy exchange and ice production AN - 884419773; 2011-070741 AB - Using recently developed techniques we estimate snow and sea ice thickness distributions for the Arctic basin through the combination of freeboard data from the Ice, Cloud, and land Elevation Satellite (ICESat) and a snow depth model. These data are used with meteorological data and a thermodynamic sea ice model to calculate ocean-atmosphere heat exchange and ice volume production during the 2003-2008 fall and winter seasons. The calculated heat fluxes and ice growth rates are in agreement with previous observations over multiyear ice. In this study, we calculate heat fluxes and ice growth rates for the full distribution of ice thicknesses covering the Arctic basin and determine the impact of ice thickness change on the calculated values. Thinning of the sea ice is observed which greatly increases the 2005-2007 fall period ocean-atmosphere heat fluxes compared to those observed in 2003. Although there was also a decline in sea ice thickness for the winter periods, the winter time heat flux was found to be less impacted by the observed changes in ice thickness. A large increase in the net Arctic ocean-atmosphere heat output is also observed in the fall periods due to changes in the areal coverage of sea ice. The anomalously low sea ice coverage in 2007 led to a net ocean-atmosphere heat output approximately 3 times greater than was observed in previous years and suggests that sea ice losses are now playing a role in increasing surface air temperatures in the Arctic. JF - Journal of Geophysical Research AU - Kurtz, N T AU - Markus, T AU - Farrell, S L AU - Worthen, D L AU - Boisvert, L N Y1 - 2011 PY - 2011 DA - 2011 EP - Citation C04015 PB - American Geophysical Union, Washington, DC VL - 116 IS - C4 SN - 0148-0227, 0148-0227 KW - ICESat KW - sea ice KW - atmosphere KW - air-sea interface KW - satellite methods KW - climate change KW - temperature KW - observations KW - spatial distribution KW - melting KW - dynamics KW - ice KW - snow KW - volume KW - thickness KW - Arctic Ocean KW - seasonal variations KW - thermodynamic properties KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/884419773?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Observations+of+recent+Arctic+sea+ice+volume+loss+and+its+impact+on+ocean-atmosphere+energy+exchange+and+ice+production&rft.au=Kurtz%2C+N+T%3BMarkus%2C+T%3BFarrell%2C+S+L%3BWorthen%2C+D+L%3BBoisvert%2C+L+N&rft.aulast=Kurtz&rft.aufirst=N&rft.date=2011-01-01&rft.volume=116&rft.issue=C4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JC006235 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 42 N1 - PubXState - DC N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2012-06-07 N1 - CODEN - JGREA2 N1 - SubjectsTermNotLitGenreText - air-sea interface; Arctic Ocean; atmosphere; climate change; dynamics; ice; ICESat; melting; observations; satellite methods; sea ice; seasonal variations; snow; spatial distribution; temperature; thermodynamic properties; thickness; volume DO - http://dx.doi.org/10.1029/2010JC006235 ER - TY - JOUR T1 - Variability and trends in sea ice extent and ice production in the Ross Sea AN - 884415130; 2011-070747 AB - Salt release during sea ice formation in the Ross Sea coastal regions is regarded as a primary forcing for the regional generation of Antarctic Bottom Water. Passive microwave data from November 1978 through 2008 are used to examine the detailed seasonal and interannual characteristics of the sea ice cover of the Ross Sea and the adjacent Bellingshausen and Amundsen seas. For this period the sea ice extent in the Ross Sea shows the greatest increase of all the Antarctic seas. Variability in the ice cover in these regions is linked to changes in the Southern Annular Mode and secondarily to the Antarctic Circumpolar Wave. Over the Ross Sea shelf, analysis of sea ice drift data from 1992 to 2008 yields a positive rate of increase in the net ice export of about 30,000 km (super 2) yr (super -1) . For a characteristic ice thickness of 0.6 m, this yields a volume transport of about 20 km (super 3) yr (super -1) , which is almost identical, within error bars, to our estimate of the trend in ice production. The increase in brine rejection in the Ross Shelf Polynya associated with the estimated increase with the ice production, however, is not consistent with the reported Ross Sea salinity decrease. The locally generated sea ice enhancement of Ross Sea salinity may be offset by an increase of relatively low salinity of the water advected into the region from the Amundsen Sea, a consequence of increased precipitation and regional glacial ice melt. JF - Journal of Geophysical Research AU - Comiso, Josefino C AU - Kwok, Ronald AU - Martin, Seelye AU - Gordon, Arnold L Y1 - 2011 PY - 2011 DA - 2011 EP - Citation C04021 PB - American Geophysical Union, Washington, DC VL - 116 IS - C4 SN - 0148-0227, 0148-0227 KW - Southern Ocean KW - ocean circulation KW - annual variations KW - sea ice KW - ice cover KW - advection KW - production KW - ice movement KW - thermohaline circulation KW - melting KW - Antarctica KW - transport KW - ice KW - Ross Sea KW - volume KW - ice drift KW - thickness KW - seasonal variations KW - glacial geology KW - Amundsen Sea KW - salinization KW - bottom water KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/884415130?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Variability+and+trends+in+sea+ice+extent+and+ice+production+in+the+Ross+Sea&rft.au=Comiso%2C+Josefino+C%3BKwok%2C+Ronald%3BMartin%2C+Seelye%3BGordon%2C+Arnold+L&rft.aulast=Comiso&rft.aufirst=Josefino&rft.date=2011-01-01&rft.volume=116&rft.issue=C4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JC006391 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 49 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch map N1 - SuppNotes - NSF Grant ANT-0538148 N1 - Last updated - 2012-06-07 N1 - CODEN - JGREA2 N1 - SubjectsTermNotLitGenreText - advection; Amundsen Sea; annual variations; Antarctica; bottom water; glacial geology; ice; ice cover; ice drift; ice movement; melting; ocean circulation; production; Ross Sea; salinization; sea ice; seasonal variations; Southern Ocean; thermohaline circulation; thickness; transport; volume DO - http://dx.doi.org/10.1029/2010JC006391 ER - TY - JOUR T1 - Subglacial aquatic environments; a focus of 21st century Antarctic science AN - 881453578; 2011-064360 AB - In 1996, growing evidence suggested a massive lake of liquid water had pooled beneath the East Antarctic Ice Sheet. This feature became known as "Lake Vostok." Early on, two hypotheses were posed: the lake contained microbial life that had evolved over millions of years in isolation beneath the ice and lake sediments contained records of past climate change obtainable nowhere else in Antarctica. Many subglacial lakes, in a number of locales, have been identified, suggesting that studies at multiple locations will be needed to fully understand the importance of subglacial aquatic environments. As of 2010, more than 300 lakes have been identified; this will increase as surveys improve spatial coverage. Given the likely pristine nature of these environs and the low levels of microbial life expected, exploration must be done in a manner that causes minimal impact or contamination. It has been shown that many of these lakes are part of an active, sub-ice hydrological system that experiences rapid water flow events over time frames of months, weeks, and even days. Microbial life in subglacial environments has been inferred, and is expected, but it has yet to be directly confirmed by in situ sampling. Current understanding of subglacial environments is incomplete and will only be improved when these subglacial environments are entered and sampled, which is projected to occur in the next few years. This book synthesizes current understanding of subglacial environments and the plans for their exploration as a benchmark for future discoveries. JF - Geophysical Monograph AU - Kennicutt, Mahlon C, II AU - Siegert, Martin J Y1 - 2011 PY - 2011 DA - 2011 SP - 1 EP - 7 PB - American Geophysical Union, Washington, DC VL - 192 SN - 0065-8448, 0065-8448 KW - hydrology KW - subglacial environment KW - ice cores KW - lakes KW - ice cover KW - ecosystems KW - glacial features KW - research KW - biota KW - exploration KW - Lake Vostok KW - Antarctica KW - ecology KW - aquatic environment KW - subglacial lakes KW - glacial lakes KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881453578?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Monograph&rft.atitle=Subglacial+aquatic+environments%3B+a+focus+of+21st+century+Antarctic+science&rft.au=Kennicutt%2C+Mahlon+C%2C+II%3BSiegert%2C+Martin+J&rft.aulast=Kennicutt&rft.aufirst=Mahlon&rft.date=2011-01-01&rft.volume=192&rft.issue=&rft.spage=1&rft.isbn=9781118670354&rft.btitle=&rft.title=Geophysical+Monograph&rft.issn=00658448&rft_id=info:doi/10.1002%2F9781118670354.ch1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 57 N1 - PubXState - DC N1 - Last updated - 2014-03-14 N1 - CODEN - GPMGAD N1 - SubjectsTermNotLitGenreText - Antarctica; aquatic environment; biota; ecology; ecosystems; exploration; glacial features; glacial lakes; hydrology; ice cores; ice cover; Lake Vostok; lakes; research; subglacial environment; subglacial lakes DO - http://dx.doi.org/10.1002/9781118670354.ch1 ER - TY - JOUR T1 - Antarctic subglacial aquatic environments AN - 881453568; 2011-064359 AB - In March 2010 83 scientists from 11 countries met in Baltimore for an AGU Chapman Conference to discuss the current status of knowledge about, and future exploration plans for, Antarctic subglacial aquatic environments. This monograph is a collection of papers which evolved from that meeting. (mte) JF - Geophysical Monograph Y1 - 2011 PY - 2011 DA - 2011 SP - 246 PB - American Geophysical Union, Washington, DC VL - 192 SN - 0065-8448, 0065-8448 KW - hydrology KW - subglacial environment KW - limnology KW - Antarctica KW - ecology KW - aquatic environment KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881453568?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2011-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=9780875904825&rft.btitle=Antarctic+subglacial+aquatic+environments&rft.title=Antarctic+subglacial+aquatic+environments&rft.issn=00658448&rft_id=info:doi/10.1029%2FGM192 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - Individual papers within scope are cited separately N1 - Last updated - 2013-06-13 N1 - CODEN - GPMGAD N1 - SubjectsTermNotLitGenreText - Antarctica; aquatic environment; ecology; hydrology; limnology; subglacial environment DO - http://dx.doi.org/10.1029/GM192 ER - TY - JOUR T1 - Warm and saline events embedded in the meridional circulation of the northern North Atlantic AN - 881450735; 2011-066053 AB - Ocean state estimates from 1958 to 2005 from the Simple Ocean Assimilation System (SODA) system are analyzed to understand circulation between subtropical and subpolar Atlantic and their connection with atmospheric forcing. This analysis shows three periods (1960s, around 1980, and 2000s) with enhanced warm, saline waters reaching high latitudes, alternating with freshwater events originating at high latitudes. It complements surface drifter and altimetry data showing the subtropical-subpolar exchange leading to a significant temperature and salinity increase in the northeast Atlantic after 2001. The warm water limb of the Atlantic meridional overturning cell represented by SODA expanded in density/salinity space during these warm events. Tracer simulations using SODA velocities also show decadal variation of the Gulf Stream waters reaching the subpolar gyre and Nordic seas. The negative phase of the North Atlantic Oscillation index, usually invoked in such variability, fails to predict the warming and salinization in the early 2000s, with salinities not seen since the 1960s. Wind stress curl variability provided a linkage to this subtropical/subpolar gyre exchange as illustrated using an idealized two-layer circulation model. The ocean response to the modulation of the climatological wind stress curl pattern was found to be such that the northward penetration of subtropical tracers is enhanced when amplitude of the wind stress curl is weaker than normal. In this case both the subtropical and subpolar gyres weaken and the subpolar density surfaces relax; hence, the polar front moves westward, opening an enhanced northward access of the subtropical waters in the eastern boundary current. JF - Journal of Geophysical Research AU - Hakkinen, Sirpa AU - Rhines, Peter B AU - Worthen, Denise L Y1 - 2011 PY - 2011 DA - 2011 EP - Citation C03006 PB - American Geophysical Union, Washington, DC VL - 116 IS - C3 SN - 0148-0227, 0148-0227 KW - North Atlantic Oscillation KW - currents KW - ocean circulation KW - Gulf Stream KW - ocean currents KW - thermohaline circulation KW - gyres KW - tracers KW - subtropical environment KW - Simple Ocean Assimilation System KW - North Atlantic KW - Atlantic Meridional Overturning cell KW - SODA KW - Atlantic Ocean KW - northern North Atlantic KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881450735?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Warm+and+saline+events+embedded+in+the+meridional+circulation+of+the+northern+North+Atlantic&rft.au=Hakkinen%2C+Sirpa%3BRhines%2C+Peter+B%3BWorthen%2C+Denise+L&rft.aulast=Hakkinen&rft.aufirst=Sirpa&rft.date=2011-01-01&rft.volume=116&rft.issue=C3&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JC006275 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 27 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Atlantic Meridional Overturning cell; Atlantic Ocean; currents; Gulf Stream; gyres; North Atlantic; North Atlantic Oscillation; northern North Atlantic; ocean circulation; ocean currents; Simple Ocean Assimilation System; SODA; subtropical environment; thermohaline circulation; tracers DO - http://dx.doi.org/10.1029/2010JC006275 ER - TY - JOUR T1 - Environmental protection and stewardship of subglacial aquatic environments AN - 881450733; 2011-064368 AB - Environmental stewardship is a guiding principle of the Antarctic Treaty System. Efforts began in the 1990s to generate specific guidelines for stewardship of many terrestrial environments, including surface lakes and rivers. The relatively recent documentation of widespread subglacial aquatic environments, and planning for acquiring samples from them, has generated a need for stewardship guidelines for these environments. In response to a request from the U.S. National Science Foundation, the National Research Council of the National Academies of Sciences (NAS) created the Committee on the Principles of Environmental and Scientific Stewardship for the Exploration and Study of Subglacial Environments. The committee made 13 recommendations and a decision tree as a framework and flow chart for environmental management decisions. The committee report was also largely the basis of a Code of Conduct (CoC) for the exploration of subglacial environments formulated by a Scientific Committee on Antarctic Research Action Group. Both the NAS report and CoC have been used as guidance, to varying degrees, by subglacial research currently in progress. JF - Geophysical Monograph AU - Doran, Peter T AU - Vincent, Warwick F Y1 - 2011 PY - 2011 DA - 2011 SP - 149 EP - 157 PB - American Geophysical Union, Washington, DC VL - 192 SN - 0065-8448, 0065-8448 KW - subglacial environment KW - programs KW - Antarctic Treaty KW - surface water KW - international cooperation KW - ice cover KW - environmental management KW - Antarctic ice sheet KW - Lake Vostok KW - Antarctica KW - conservation KW - ice KW - land management KW - McMurdo dry valleys KW - Victoria Land KW - ecology KW - aquatic environment KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881450733?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Monograph&rft.atitle=Environmental+protection+and+stewardship+of+subglacial+aquatic+environments&rft.au=Doran%2C+Peter+T%3BVincent%2C+Warwick+F&rft.aulast=Doran&rft.aufirst=Peter&rft.date=2011-01-01&rft.volume=192&rft.issue=&rft.spage=149&rft.isbn=9781118670354&rft.btitle=&rft.title=Geophysical+Monograph&rft.issn=00658448&rft_id=info:doi/10.1002%2F9781118670354.ch9 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 11 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2014-03-14 N1 - CODEN - GPMGAD N1 - SubjectsTermNotLitGenreText - Antarctic ice sheet; Antarctic Treaty; Antarctica; aquatic environment; conservation; ecology; environmental management; ice; ice cover; international cooperation; Lake Vostok; land management; McMurdo dry valleys; programs; subglacial environment; surface water; Victoria Land DO - http://dx.doi.org/10.1002/9781118670354.ch9 ER - TY - JOUR T1 - Subglacial environments and the search for life beyond the Earth AN - 881450719; 2011-064367 AB - One of the most remarkable discoveries resulting from the robotic and remote sensing exploration of space is the inferred presence of bodies of liquid water under ice deposits on other planetary bodies: extraterrestrial subglacial environments. Most prominent among these are the ice-covered ocean of the Jovian moon, Europa, and the Saturnian moon, Enceladus. On Mars, although there is no current evidence for subglacial liquid water today, conditions may have been more favorable for liquid water during periods of higher obliquity. Data on these extraterrestrial environments show that while they share similarities with some subglacial environments on the Earth, they are very different in their combined physicochemical conditions. Extraterrestrial environments may provide three new types of subglacial settings for study: (1) uninhabitable environments that are more extreme and life-limiting than terrestrial subglacial environments, (2) environments that are habitable but are uninhabited, which can be compared to similar biotically influenced subglacial environments on the Earth, and (3) environments with examples of life, which will provide new opportunities to investigate the interactions between a biota and glacial environments. JF - Geophysical Monograph AU - Cockell, Charles S AU - Bagshaw, Elizabeth AU - Balme, Matt AU - Doran, Peter T AU - McKay, Christopher P AU - Miljkovic, Katarina AU - Pearce, David A AU - Siegert, Martin J AU - Tranter, Martyn AU - Voytek, Mary AU - Wadham, Jemma L Y1 - 2011 PY - 2011 DA - 2011 SP - 129 EP - 148 PB - American Geophysical Union, Washington, DC VL - 192 SN - 0065-8448, 0065-8448 KW - water KW - subglacial environment KW - icy satellites KW - terrestrial environment KW - Europa Satellite KW - lakes KW - astrobiology KW - Mars KW - Galilean satellites KW - life origin KW - biota KW - terrestrial planets KW - planets KW - habitat KW - Lake Vostok KW - Antarctica KW - ice KW - glacial environment KW - terrestrial comparison KW - Enceladus Satellite KW - satellites KW - subglacial lakes KW - 08:General paleontology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881450719?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Monograph&rft.atitle=Subglacial+environments+and+the+search+for+life+beyond+the+Earth&rft.au=Cockell%2C+Charles+S%3BBagshaw%2C+Elizabeth%3BBalme%2C+Matt%3BDoran%2C+Peter+T%3BMcKay%2C+Christopher+P%3BMiljkovic%2C+Katarina%3BPearce%2C+David+A%3BSiegert%2C+Martin+J%3BTranter%2C+Martyn%3BVoytek%2C+Mary%3BWadham%2C+Jemma+L&rft.aulast=Cockell&rft.aufirst=Charles&rft.date=2011-01-01&rft.volume=192&rft.issue=&rft.spage=129&rft.isbn=9781118670354&rft.btitle=&rft.title=Geophysical+Monograph&rft.issn=00658448&rft_id=info:doi/10.1002%2F9781118670354.ch8 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 133 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-03-14 N1 - CODEN - GPMGAD N1 - SubjectsTermNotLitGenreText - Antarctica; astrobiology; biota; Enceladus Satellite; Europa Satellite; Galilean satellites; glacial environment; habitat; ice; icy satellites; Lake Vostok; lakes; life origin; Mars; planets; satellites; subglacial environment; subglacial lakes; terrestrial comparison; terrestrial environment; terrestrial planets; water DO - http://dx.doi.org/10.1002/9781118670354.ch8 ER - TY - JOUR T1 - The geomorphic signature of massive subglacial floods in Victoria Land, Antarctica AN - 881450707; 2011-064366 AB - We describe a landscape in the Dry Valleys area consisting of channels, potholes, plunge pools, stripped bedrock, and scabland created by subglacial outburst floods on a scale similar to that of the massive outbursts of Lake Missoula in Washington, United States. The features are dated to the mid-Miocene and occurred when a thicker East Antarctic ice sheet overrode this part of the Transantarctic Mountains. Ice sheet modeling is used to reconstruct potential source areas for meltwater discharge. Results suggest that meltwater from Lake Vostok, or other interior basins, would have bypassed the Dry Valleys area and instead flowed out beneath the troughs of David and Byrd glaciers, north and south of the Dry Valleys, respectively. A more likely source might have been lakes on the inner flank of the Transantarctic Mountains, with periodic outbursts associated with local breaches in the cold-based rim of the ice sheet. The efficacy of erosion by such outbursts is remarkable. The most concentrated effects were in the labyrinth on the bed of the former Wright outlet glacier. Such outbursts are likely to contribute to the erosion of present-day outlet glacier troughs. JF - Geophysical Monograph AU - Marchant, David R AU - Jamieson, Stewart S R AU - Sugden, David E Y1 - 2011 PY - 2011 DA - 2011 SP - 111 EP - 127 PB - American Geophysical Union, Washington, DC VL - 192 SN - 0065-8448, 0065-8448 KW - lacustrine features KW - erosion KW - David Glacier KW - lakes KW - erosion features KW - Cenozoic KW - glacial erosion KW - jokulhlaups KW - Wright Glacier KW - discharge KW - subglacial lakes KW - hydrology KW - subglacial environment KW - Quaternary KW - paleohydrology KW - glaciers KW - channels KW - Byrd Glacier KW - potholes KW - paleogeography KW - Antarctica KW - McMurdo dry valleys KW - fluvial features KW - Victoria Land KW - geomorphology KW - meltwater KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881450707?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Monograph&rft.atitle=The+geomorphic+signature+of+massive+subglacial+floods+in+Victoria+Land%2C+Antarctica&rft.au=Marchant%2C+David+R%3BJamieson%2C+Stewart+S+R%3BSugden%2C+David+E&rft.aulast=Marchant&rft.aufirst=David&rft.date=2011-01-01&rft.volume=192&rft.issue=&rft.spage=111&rft.isbn=9781118670354&rft.btitle=&rft.title=Geophysical+Monograph&rft.issn=00658448&rft_id=info:doi/10.1002%2F9781118670354.ch7 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 54 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2014-03-14 N1 - CODEN - GPMGAD N1 - SubjectsTermNotLitGenreText - Antarctica; Byrd Glacier; Cenozoic; channels; David Glacier; discharge; erosion; erosion features; fluvial features; geomorphology; glacial erosion; glaciers; hydrology; jokulhlaups; lacustrine features; lakes; McMurdo dry valleys; meltwater; paleogeography; paleohydrology; potholes; Quaternary; subglacial environment; subglacial lakes; Victoria Land; Wright Glacier DO - http://dx.doi.org/10.1002/9781118670354.ch7 ER - TY - JOUR T1 - Subglacial lake sediments and sedimentary processes; potential archives of ice sheet evolution, past environmental change, and the presence of life AN - 881450693; 2011-064365 AB - The development of funded programs to drill into deep continental Antarctic subglacial lakes means that there is an imminent prospect of retrieving the first sediments from isolated and unexplored aquatic environments beneath Earth's largest ice sheet. Here we demonstrate how these sediments are potential archives of information on past ice sheet configurations, paleoenvironmental change, and the presence of life in the deep, dark, and cold setting of subglacial lakes. We review what is known about the physical characteristics of subglacial lake sediments, indirectly from remote geophysical surveys of modern and former subglacial lakes and directly from sampling of sediments in former subglacial lakes emerging at the margin of the Antarctic ice sheet and terrestrial settings elsewhere. We show that mean sedimentation rates in subglacial lakes can vary from near zero to several millimeters per year and that the thickness of sedimentary sequences in subglacial lakes ranges from a few centimeters to several hundred meters. The most important control on sedimentation rate and sediment thickness is likely to be the amount of sediment-laden water delivered by regional basal water systems. Episodic lake discharge will also likely have a significant impact on some sedimentary sequences. On the basis of our review and previously documented limnological and glaciological processes, we propose a conceptual model of subglacial lake sedimentation that we apply to lakes Vostok, Ellsworth, and Whillans. We discuss the implications of the likely sediment physical characteristics for designing coring technologies and for the choice of analytical procedures to examine sediment samples from subglacial lakes. JF - Geophysical Monograph AU - Bentley, M J AU - Christoffersen, P AU - Hodgson, D A AU - Smith, A M AU - Tulaczyk, Slawek AU - Le Brocq, A M Y1 - 2011 PY - 2011 DA - 2011 SP - 83 EP - 110 PB - American Geophysical Union, Washington, DC VL - 192 SN - 0065-8448, 0065-8448 KW - ice cover thickness KW - geophysical surveys KW - lakes KW - ice cover KW - landforms KW - paleoecology KW - Cenozoic KW - gravity methods KW - ice KW - Lake Whillans KW - sediments KW - ecology KW - discharge KW - subglacial lakes KW - hydrology KW - seismic profiles KW - Quaternary KW - modern analogs KW - paleohydrology KW - geophysical methods KW - paleolakes KW - biota KW - seismic methods KW - Lake Hodgson KW - Antarctic ice sheet KW - paleoenvironment KW - Lake Vostok KW - Antarctica KW - lacustrine environment KW - surveys KW - geophysical profiles KW - geomorphology KW - Lake Ellsworth KW - lake sediments KW - airborne methods KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881450693?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Monograph&rft.atitle=Subglacial+lake+sediments+and+sedimentary+processes%3B+potential+archives+of+ice+sheet+evolution%2C+past+environmental+change%2C+and+the+presence+of+life&rft.au=Bentley%2C+M+J%3BChristoffersen%2C+P%3BHodgson%2C+D+A%3BSmith%2C+A+M%3BTulaczyk%2C+Slawek%3BLe+Brocq%2C+A+M&rft.aulast=Bentley&rft.aufirst=M&rft.date=2011-01-01&rft.volume=192&rft.issue=&rft.spage=83&rft.isbn=9781118670354&rft.btitle=&rft.title=Geophysical+Monograph&rft.issn=00658448&rft_id=info:doi/10.1002%2F9781118670354.ch6 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 131 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2014-03-14 N1 - CODEN - GPMGAD N1 - SubjectsTermNotLitGenreText - airborne methods; Antarctic ice sheet; Antarctica; biota; Cenozoic; discharge; ecology; geomorphology; geophysical methods; geophysical profiles; geophysical surveys; gravity methods; hydrology; ice; ice cover; ice cover thickness; lacustrine environment; Lake Ellsworth; Lake Hodgson; lake sediments; Lake Vostok; Lake Whillans; lakes; landforms; modern analogs; paleoecology; paleoenvironment; paleohydrology; paleolakes; Quaternary; sediments; seismic methods; seismic profiles; subglacial lakes; surveys DO - http://dx.doi.org/10.1002/9781118670354.ch6 ER - TY - JOUR T1 - Vostok subglacial lake; a review of geophysical data regarding its discovery and topographic setting AN - 881450681; 2011-064363 AB - Vostok Subglacial Lake is the largest and best known sub-ice lake in Antarctica. The establishment of its water depth (>500 m) led to an appreciation that such environments may be habitats for life and could contain ancient records of ice sheet change, which catalyzed plans for exploration and research. Here we discuss geophysical data used to identify the lake and the likely physical, chemical, and biological processes that occur in it. The lake is more than 250 km long and around 80 km wide in one place. It lies beneath 4.2 to 3.7 km of ice and exists because background levels of geothermal heating are sufficient to warm the ice base to the pressure melting value. Seismic and gravity measurements show the lake has two distinct basins. The Vostok ice core extracted >200 m of ice accreted from the lake to the ice sheet base. Analysis of this ice has given valuable insights into the lake's biological and chemical setting. The inclination of the ice-water interface leads to differential basal melting in the north versus freezing in the south, which excites circulation and potential mixing of the water. The exact nature of circulation depends on hydrochemical properties, which are not known at this stage. The age of the subglacial lake is likely to be as old as the ice sheet ( approximately 14 Ma). The age of the water within the lake will be related to the age of the ice melting into it and the level of mixing. Rough estimates put that combined age as approximately 1 Ma. JF - Geophysical Monograph AU - Siegert, Martin J AU - Popov, Sergey AU - Studinger, Michael Y1 - 2011 PY - 2011 DA - 2011 SP - 45 EP - 60 PB - American Geophysical Union, Washington, DC VL - 192 SN - 0065-8448, 0065-8448 KW - hydrology KW - subglacial environment KW - ice cores KW - lakes KW - geophysical methods KW - freezing KW - temperature KW - seismic methods KW - gravity methods KW - gravity anomalies KW - topography KW - melting KW - Lake Vostok KW - Antarctica KW - ice KW - lacustrine environment KW - geomorphology KW - subglacial lakes KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881450681?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Monograph&rft.atitle=Vostok+subglacial+lake%3B+a+review+of+geophysical+data+regarding+its+discovery+and+topographic+setting&rft.au=Siegert%2C+Martin+J%3BPopov%2C+Sergey%3BStudinger%2C+Michael&rft.aulast=Siegert&rft.aufirst=Martin&rft.date=2011-01-01&rft.volume=192&rft.issue=&rft.spage=45&rft.isbn=9781118670354&rft.btitle=&rft.title=Geophysical+Monograph&rft.issn=00658448&rft_id=info:doi/10.1002%2F9781118670354.ch4 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 51 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch maps N1 - SuppNotes - NSF grants ANT-0537752 and ANT-0636584 N1 - Last updated - 2014-03-14 N1 - CODEN - GPMGAD N1 - SubjectsTermNotLitGenreText - Antarctica; freezing; geomorphology; geophysical methods; gravity anomalies; gravity methods; hydrology; ice; ice cores; lacustrine environment; Lake Vostok; lakes; melting; seismic methods; subglacial environment; subglacial lakes; temperature; topography DO - http://dx.doi.org/10.1002/9781118670354.ch4 ER - TY - JOUR T1 - Antarctic subglacial lake discharges AN - 881450670; 2011-064362 AB - Antarctic subglacial lakes were long time supposed to be relatively closed and stable environments with long residence times and slow circulations. This view has recently been challenged with evidence of active subglacial lake discharge underneath the Antarctic ice sheet. Satellite altimetry observations witnessed rapid changes in surface elevation across subglacial lakes over periods ranging from several months to more than a year, which were interpreted as subglacial lake discharge and subsequent lake filling, and which seem to be a common and widespread feature. Such discharges are comparable to jokulhlaups and can be modeled that way using the Nye-Rothlisberger theory. Considering the ice at the base of the ice sheet at pressure melting point, subglacial conduits are sustainable over periods of more than a year and over distances of several hundreds of kilometers. Coupling of an ice sheet model to a subglacial lake system demonstrated that small changes in surface slope are sufficient to start and sustain episodic subglacial drainage events on decadal time scales. Therefore, lake discharge may well be a common feature of the subglacial hydrological system, influencing the behavior of large ice sheets, especially when subglacial lakes are perched at or near the onset of large outlet glaciers and ice streams. While most of the observed discharge events are relatively small (10 (super 1) -10 (super 2) m (super 3) s (super -1) ), evidence for larger subglacial discharges is found in ice free areas bordering Antarctica, and witnessing subglacial floods of more than 10 (super 6) m (super 3) s (super -1) that occurred during the middle Miocene. JF - Geophysical Monograph AU - Pattyn, Frank Y1 - 2011 PY - 2011 DA - 2011 SP - 27 EP - 44 PB - American Geophysical Union, Washington, DC VL - 192 SN - 0065-8448, 0065-8448 KW - hydrology KW - lacustrine features KW - ice cover thickness KW - elevation KW - lakes KW - ice cover KW - glaciers KW - altimetry KW - satellite methods KW - Antarctica KW - ice streams KW - jokulhlaups KW - ice KW - geomorphology KW - discharge KW - subglacial lakes KW - remote sensing KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881450670?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Monograph&rft.atitle=Antarctic+subglacial+lake+discharges&rft.au=Pattyn%2C+Frank&rft.aulast=Pattyn&rft.aufirst=Frank&rft.date=2011-01-01&rft.volume=192&rft.issue=&rft.spage=27&rft.isbn=9781118670354&rft.btitle=&rft.title=Geophysical+Monograph&rft.issn=00658448&rft_id=info:doi/10.1002%2F9781118670354.ch3 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 84 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2014-03-14 N1 - CODEN - GPMGAD N1 - SubjectsTermNotLitGenreText - altimetry; Antarctica; discharge; elevation; geomorphology; glaciers; hydrology; ice; ice cover; ice cover thickness; ice streams; jokulhlaups; lacustrine features; lakes; remote sensing; satellite methods; subglacial lakes DO - http://dx.doi.org/10.1002/9781118670354.ch3 ER - TY - JOUR T1 - The identification and physiographical setting of Antarctic subglacial lakes; an update based on recent discoveries AN - 881450660; 2011-064361 AB - We investigate the glaciological and topographic setting of known Antarctic subglacial lakes following a previous assessment by Dowdeswell and Siegert (2002) based on the first inventory of 77 lakes. Procedures used to detect subglacial lakes are discussed, including radio echo sounding (RES) (which was first used to demonstrate the presence of subglacial lakes), surface topography, topographical changes, gravity measurements, and seismic investigations. Recent discoveries of subglacial lakes using these techniques are detailed, from which a revised new inventory of subglacial lakes is established, bringing the total number of known subglacial lakes to 387. Using this new inventory, we examine various controls on subglacial lakes, such as overlying ice thickness and position within the ice sheet and formulate frequency distributions for the entire subglacial lake population based on these (variable) controls. We show how the utility of RES in identifying subglacial lakes is spatially affected; lakes away from the ice divide are not easily detected by this technique, probably due to scattering at the ice sheet base. We show that subglacial lakes are widespread in Antarctica, and it is likely that many are connected within well-defined subglacial hydrological systems. JF - Geophysical Monograph AU - Wright, Andrew AU - Siegert, Martin J Y1 - 2011 PY - 2011 DA - 2011 SP - 9 EP - 26 PB - American Geophysical Union, Washington, DC VL - 192 SN - 0065-8448, 0065-8448 KW - subglacial environment KW - lacustrine features KW - ice cover thickness KW - geophysical surveys KW - echo sounding KW - lakes KW - geophysical methods KW - ice cover KW - glaciers KW - ice floes KW - seismic methods KW - spatial distribution KW - gravity methods KW - gravity anomalies KW - topography KW - Antarctica KW - ice streams KW - ice KW - classification KW - surveys KW - geomorphology KW - Vostok Station KW - subglacial lakes KW - 23:Geomorphology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881450660?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Monograph&rft.atitle=The+identification+and+physiographical+setting+of+Antarctic+subglacial+lakes%3B+an+update+based+on+recent+discoveries&rft.au=Wright%2C+Andrew%3BSiegert%2C+Martin+J&rft.aulast=Wright&rft.aufirst=Andrew&rft.date=2011-01-01&rft.volume=192&rft.issue=&rft.spage=9&rft.isbn=9781118670354&rft.btitle=&rft.title=Geophysical+Monograph&rft.issn=00658448&rft_id=info:doi/10.1002%2F9781118670354.ch2 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 97 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2014-03-14 N1 - CODEN - GPMGAD N1 - SubjectsTermNotLitGenreText - Antarctica; classification; echo sounding; geomorphology; geophysical methods; geophysical surveys; glaciers; gravity anomalies; gravity methods; ice; ice cover; ice cover thickness; ice floes; ice streams; lacustrine features; lakes; seismic methods; spatial distribution; subglacial environment; subglacial lakes; surveys; topography; Vostok Station DO - http://dx.doi.org/10.1002/9781118670354.ch2 ER - TY - JOUR T1 - Environmental conditions and bio-optical signature of a coccolithophorid bloom in the Patagonian Shelf AN - 881450391; 2011-066072 AB - In January 2008, a patch of high reflectance detected by ocean color satellite images was sampled during a cruise over the southern Argentinean continental shelf. High calcite concentrations (particulate inorganic carbon (PIC)) found at the patch were associated with dominance of the coccolithophorid Emiliania huxleyi. Relatively low chlorophyll concentrations (0.29 to 1.48 mg m (super -3) ) were found, but both particulate attenuation (0.27 to 1.15 m (super -1) ) and backscattering coefficients at 660 nm (0.003 to 0.042 m (super -1) ) were noticeably high. Particulate inorganic to organic carbon (POC) ratio (PIC:POC) was highly variable (0.02 to 1.1), but mostly high, showing a significant correlation with particulate backscattering coefficient at 660 nm (r = 0.83, p < 0.005). The spectral dependency of the backscattering coefficient followed Gordon et al. (2009). Both the time evolution analyses of normalized water leaving radiance at 551 nm (nLw551) and the high PIC:POC ratios suggested an advanced stage of the coccolithophorid bloom, therefore with high detached coccoliths:cell ratios. Moreover, this was supported by a strong correlation between PIC and both particulate backscattering (r = 0.81, p < 0.005) and particulate beam attenuation coefficient (r = 0.7, p < 0.05). Remote sensing reflectance data were strongly related to particle backscattering and backscattering ratio, but not to absorption. NASA operational algorithms overestimated chlorophyll by a factor of approximately 2 and estimated PIC with a relatively high root-mean-square (RMS) error (RMS = 97.9 mu g PIC L (super -1) ). Better estimates of PIC values (RMS = 81.5 mu g PIC L (super -1) ) were achieved when we used the original PIC-specific backscattering coefficient (Balch et al., 2005). JF - Journal of Geophysical Research AU - Garcia, Carlos Alberto Eiras AU - Garcia, Virginia Maria Tavano AU - Dogliotti, Ana Ines AU - Ferreira, Amabile AU - Romero, Silvia I AU - Mannino, Antonio AU - Souza, Marcio S AU - Mata, Mauricio M Y1 - 2011 PY - 2011 DA - 2011 EP - Citation C03025 PB - American Geophysical Union, Washington, DC VL - 116 IS - C3 SN - 0148-0227, 0148-0227 KW - Coccolithophoraceae KW - imagery KW - algae KW - carbon KW - porphyrins KW - particulate materials KW - organic carbon KW - chemical ratios KW - productivity KW - Plantae KW - Patagonian Shelf KW - living taxa KW - pigments KW - satellite methods KW - chlorophyll KW - Southwest Atlantic KW - South America KW - organic compounds KW - optical properties KW - Patagonia KW - Argentina KW - South Atlantic KW - continental shelf KW - reflectance KW - backscattering KW - Atlantic Ocean KW - remote sensing KW - MODIS KW - algal blooms KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881450391?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Environmental+conditions+and+bio-optical+signature+of+a+coccolithophorid+bloom+in+the+Patagonian+Shelf&rft.au=Garcia%2C+Carlos+Alberto+Eiras%3BGarcia%2C+Virginia+Maria+Tavano%3BDogliotti%2C+Ana+Ines%3BFerreira%2C+Amabile%3BRomero%2C+Silvia+I%3BMannino%2C+Antonio%3BSouza%2C+Marcio+S%3BMata%2C+Mauricio+M&rft.aulast=Garcia&rft.aufirst=Carlos+Alberto&rft.date=2011-01-01&rft.volume=116&rft.issue=C3&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JC006595 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 58 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algae; algal blooms; Argentina; Atlantic Ocean; backscattering; carbon; chemical ratios; chlorophyll; Coccolithophoraceae; continental shelf; imagery; living taxa; MODIS; optical properties; organic carbon; organic compounds; particulate materials; Patagonia; Patagonian Shelf; pigments; Plantae; porphyrins; productivity; reflectance; remote sensing; satellite methods; South America; South Atlantic; Southwest Atlantic DO - http://dx.doi.org/10.1029/2010JC006595 ER - TY - JOUR T1 - Ellsworth subglacial lake, West Antarctica; a review of its history and recent field campaigns AN - 881449873; 2011-064372 AB - Ellsworth Subglacial Lake, first observed in airborne radio echo sounding data acquired in 1978, is located within a long, deep subglacial trough within the Ellsworth Subglacial Highlands of West Antarctica. Geophysical surveys have characterized the lake, its subglacial catchment, and the thickness, structure, and flow of the overlying ice sheet. Covering 28.9 km (super 2) , Ellsworth Subglacial Lake is located below 2.9 to 3.3 km of ice at depths of -1361 to -1030 m. Seismic reflection data have shown the lake to be up to 156 m deep and underlain by unconsolidated sediments. Ice sheet flow over the lake is characterized by low velocities (2 m of sediment below the lake floor, JF - Geophysical Monograph AU - Ross, Neil AU - Siegert, Martin J AU - Rivera, A AU - Bentley, M J AU - Blake, D AU - Capper, L AU - Clarke, R AU - Cockell, Charles S AU - Corr, H F J AU - Harris, W AU - Hill, C AU - Hindmarsh, Richard C A AU - Hodgson, D A AU - King, E C AU - Lamb, H AU - Maher, B AU - Makinson, K AU - Mowlem, Matthew C AU - Parnell, J AU - Pearce, David A AU - Priscu, John AU - Smith, A M AU - Tait, A AU - Tranter, Martyn AU - Wadham, Jemma L AU - Whalley, W B AU - Woodward, J Y1 - 2011 PY - 2011 DA - 2011 SP - 221 EP - 233 PB - American Geophysical Union, Washington, DC VL - 192 SN - 0065-8448, 0065-8448 KW - subglacial environment KW - lacustrine features KW - ice cover thickness KW - geophysical surveys KW - echo sounding KW - lakes KW - geophysical methods KW - radar methods KW - ice cover KW - seismic methods KW - Antarctic ice sheet KW - Antarctica KW - ice KW - West Antarctic ice sheet KW - sediments KW - lacustrine environment KW - surveys KW - geomorphology KW - Lake Ellsworth KW - subglacial lakes KW - Pine Island Glacier KW - lake sediments KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881449873?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Monograph&rft.atitle=Ellsworth+subglacial+lake%2C+West+Antarctica%3B+a+review+of+its+history+and+recent+field+campaigns&rft.au=Ross%2C+Neil%3BSiegert%2C+Martin+J%3BRivera%2C+A%3BBentley%2C+M+J%3BBlake%2C+D%3BCapper%2C+L%3BClarke%2C+R%3BCockell%2C+Charles+S%3BCorr%2C+H+F+J%3BHarris%2C+W%3BHill%2C+C%3BHindmarsh%2C+Richard+C+A%3BHodgson%2C+D+A%3BKing%2C+E+C%3BLamb%2C+H%3BMaher%2C+B%3BMakinson%2C+K%3BMowlem%2C+Matthew+C%3BParnell%2C+J%3BPearce%2C+David+A%3BPriscu%2C+John%3BSmith%2C+A+M%3BTait%2C+A%3BTranter%2C+Martyn%3BWadham%2C+Jemma+L%3BWhalley%2C+W+B%3BWoodward%2C+J&rft.aulast=Ross&rft.aufirst=Neil&rft.date=2011-01-01&rft.volume=192&rft.issue=&rft.spage=221&rft.isbn=9781118670354&rft.btitle=&rft.title=Geophysical+Monograph&rft.issn=00658448&rft_id=info:doi/10.1002%2F9781118670354.ch13 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 25 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2014-03-14 N1 - CODEN - GPMGAD N1 - SubjectsTermNotLitGenreText - Antarctic ice sheet; Antarctica; echo sounding; geomorphology; geophysical methods; geophysical surveys; ice; ice cover; ice cover thickness; lacustrine environment; lacustrine features; Lake Ellsworth; lake sediments; lakes; Pine Island Glacier; radar methods; sediments; seismic methods; subglacial environment; subglacial lakes; surveys; West Antarctic ice sheet DO - http://dx.doi.org/10.1002/9781118670354.ch13 ER - TY - JOUR T1 - Siple Coast subglacial aquatic environments; the Whillans ice stream subglacial access research drilling project AN - 881449860; 2011-064371 AB - The Whillians Ice Stream Subglacial Access Research Drilling (WISSARD) project is a 6-year (2009-2015) integrative study of ice sheet stability and subglacial geobiology in West Antarctica, funded by the Antarctic Integrated System Science Program of National Science Foundation's Office of Polar Programs, Antarctic Division. The overarching scientific objective of WISSARD is to assess the role of water beneath a West Antarctic Ice Stream in interlinked glaciological, geological, microbiological, geochemical, hydrological, and oceanographic systems. The WISSARD's important science questions relate to (1) the role that subglacial and ice shelf cavity waters and wet sediments play in ice stream dynamics and mass balance, with an eye on the possible future of the West Antarctic Ice Sheet and (2) the microbial metabolic and phylogenetic diversity in these subglacial environments. The study area is the downstream part of the Whillans Ice Stream on the Siple Coast, specifically Subglacial Lake Whillans and the part of the grounding zone across which it drains. In this chapter, we provide background on the motivation for the WISSARD project, detail the key scientific goals, and describe the new measurement tools and strategies under development that will provide the framework for conducting an unprecedented range of scientific observations. JF - Geophysical Monograph AU - Fricker, Helen Amanda AU - Powell, Ross AU - Priscu, John AU - Tulaczyk, Slawek AU - Anandakrishnan, Sridhar AU - Christner, Brent AU - Fisher, Andrew T AU - Holland, David AU - Horgan, Huw AU - Jacobel, Robert AU - Mikucki, Jill AU - Mitchell, Andrew AU - Scherer, Reed AU - Severinghaus, Jeff Y1 - 2011 PY - 2011 DA - 2011 SP - 199 EP - 219 PB - American Geophysical Union, Washington, DC VL - 192 SN - 0065-8448, 0065-8448 KW - hydrology KW - subglacial environment KW - programs KW - biochemistry KW - glacial features KW - Antarctica KW - ice streams KW - Whillans ice stream KW - Lake Whillans KW - glacial environment KW - Siple Dome KW - geomorphology KW - drilling KW - aquatic environment KW - Siple Coast KW - Marie Byrd Land KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881449860?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Monograph&rft.atitle=Siple+Coast+subglacial+aquatic+environments%3B+the+Whillans+ice+stream+subglacial+access+research+drilling+project&rft.au=Fricker%2C+Helen+Amanda%3BPowell%2C+Ross%3BPriscu%2C+John%3BTulaczyk%2C+Slawek%3BAnandakrishnan%2C+Sridhar%3BChristner%2C+Brent%3BFisher%2C+Andrew+T%3BHolland%2C+David%3BHorgan%2C+Huw%3BJacobel%2C+Robert%3BMikucki%2C+Jill%3BMitchell%2C+Andrew%3BScherer%2C+Reed%3BSeveringhaus%2C+Jeff&rft.aulast=Fricker&rft.aufirst=Helen&rft.date=2011-01-01&rft.volume=192&rft.issue=&rft.spage=199&rft.isbn=9781118670354&rft.btitle=&rft.title=Geophysical+Monograph&rft.issn=00658448&rft_id=info:doi/10.1002%2F9781118670354.ch12 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 78 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - Last updated - 2014-03-14 N1 - CODEN - GPMGAD N1 - SubjectsTermNotLitGenreText - Antarctica; aquatic environment; biochemistry; drilling; geomorphology; glacial environment; glacial features; hydrology; ice streams; Lake Whillans; Marie Byrd Land; programs; Siple Coast; Siple Dome; subglacial environment; Whillans ice stream DO - http://dx.doi.org/10.1002/9781118670354.ch12 ER - TY - JOUR T1 - Vostok subglacial lake; details of Russian plans activities for drilling and sampling AN - 881449846; 2011-064370 AB - The Russian Federation has developed a national project involving the drilling and sampling of Vostok Subglacial Lake, East Antarctica. The objective is to explore this extreme icy environment, using a variety of techniques to identify the forms and levels of life that exist there. The project is funded by the Russian Federal Service ROSHYDROMET. In the 2009/2010 season, drilling operations were restarted at a depth of 3559 m via new borehole 5G-2, successfully reaching a new depth of approximately 3650 m. New accretion ice, including the inclusion-rich "thermophile-containing" horizon (around 3608 m) was again recovered and will be studied to assess the previous scenario and findings. In 2010/2011, the drill will carefully continue to deepen the borehole leaving a 10- to 15-m ice cork and will in season 2011/2012 enter the lake, allowing water to rise up dozens of meters within borehole 5G-2 and subsequently freeze. During the same or following season (2012/2013), borehole 5G-2 will be redrilled to acquire rapidly frozen lake water for complex investigations. In the following season, 2013/2014, a special set of strictly decontaminated biophysical instruments, developed at the Petersburg Nuclear Physics Institute, will be lowered into the water body, with a battery of ocean observatory sensors, cameras, fluorimeters-spectrometers, and special water samplers on board several submersible titan modules. Such activities are in line with environmental stewardship in the exploration of unique aquatic environments under the Antarctic ice sheet. JF - Geophysical Monograph AU - Lukin, Valery AU - Bulat, Sergey Y1 - 2011 PY - 2011 DA - 2011 SP - 187 EP - 197 PB - American Geophysical Union, Washington, DC VL - 192 SN - 0065-8448, 0065-8448 KW - subglacial environment KW - programs KW - lacustrine features KW - lakes KW - international cooperation KW - cores KW - Antarctic ice sheet KW - Lake Vostok KW - boreholes KW - Antarctica KW - sediments KW - lacustrine environment KW - ecology KW - geomorphology KW - drilling KW - bathymetry KW - subglacial lakes KW - lake sediments KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881449846?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Monograph&rft.atitle=Vostok+subglacial+lake%3B+details+of+Russian+plans+activities+for+drilling+and+sampling&rft.au=Lukin%2C+Valery%3BBulat%2C+Sergey&rft.aulast=Lukin&rft.aufirst=Valery&rft.date=2011-01-01&rft.volume=192&rft.issue=&rft.spage=187&rft.isbn=9781118670354&rft.btitle=&rft.title=Geophysical+Monograph&rft.issn=00658448&rft_id=info:doi/10.1002%2F9781118670354.ch11 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 21 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2014-03-14 N1 - CODEN - GPMGAD N1 - SubjectsTermNotLitGenreText - Antarctic ice sheet; Antarctica; bathymetry; boreholes; cores; drilling; ecology; geomorphology; international cooperation; lacustrine environment; lacustrine features; lake sediments; Lake Vostok; lakes; programs; sediments; subglacial environment; subglacial lakes DO - http://dx.doi.org/10.1002/9781118670354.ch11 ER - TY - JOUR T1 - Probe technology for the direct measurement and sampling of Ellsworth subglacial lake AN - 881449832; 2011-064369 AB - The direct measurement and sampling of Ellsworth Subglacial Lake is a multi-disciplinary investigation of life in extreme environments and West Antarctic ice sheet history. The project's aims are (1) to determine whether, and in what form, microbial life exists in Antarctic subglacial lakes and (2) to reveal the post-Pliocene history of the West Antarctic Ice Sheet. A U.K. consortium has planned an extensive logistics and equipment development program that will deliver the necessary resources. This will include hot water drill technology for lake access through approximately 3.2 km of ice, a probe to make measurements with sensors and to collect water and sediment samples, and a percussion corer to acquire an approximately 3-4 m sediment core. This chapter details the requirements and early stages of design and development of the probe system. This includes the instrumentation package, water samplers, and a mini gravity corer mounted on the front of the probe. Initial design concepts for supporting equipment required at the drill site to deploy and operate the probe are also described. A review of the literature describing relevant technology is presented. The project will implement environmental protection in line with principles set out by the Scientific Committee on Antarctic Research. JF - Geophysical Monograph AU - Mowlem, Matthew C AU - Tsaloglou, Maria-Nefeli AU - Waugh, Edward M AU - Floquet, Cedric F A AU - Saw, Kevin AU - Fowler, Lee AU - Brown, Robin AU - Pearce, David A AU - Wyatt, James B AU - Beaton, Alexander D AU - Brito, Mario P AU - Hodgson, Dominic A AU - Griffiths, Gwyn AU - Bentley, M J AU - Blake, D AU - Capper, L AU - Clarke, R AU - Cockell, Charles S AU - Corr, H F J AU - Harris, W AU - Hill, C AU - Hindmarsh, Richard C A AU - King, E AU - Lamb, H AU - Maher, B AU - Makinson, K AU - Parnell, J AU - Priscu, John AU - Rivera, A AU - Ross, Neil AU - Siegert, Martin J AU - Smith, A M AU - Tait, A AU - Tranter, Martyn AU - Wadham, Jemma L AU - Whalley, B AU - Woodward, J Y1 - 2011 PY - 2011 DA - 2011 SP - 159 EP - 186 PB - American Geophysical Union, Washington, DC VL - 192 SN - 0065-8448, 0065-8448 KW - lacustrine features KW - geophysical surveys KW - lakes KW - cores KW - gravity methods KW - acoustical methods KW - West Antarctic ice sheet KW - sediments KW - drilling KW - subglacial lakes KW - subglacial environment KW - geophysical methods KW - biota KW - Antarctic ice sheet KW - Antarctica KW - lacustrine environment KW - surveys KW - geomorphology KW - Lake Ellsworth KW - sonar methods KW - instruments KW - design KW - microorganisms KW - lake sediments KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881449832?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Monograph&rft.atitle=Probe+technology+for+the+direct+measurement+and+sampling+of+Ellsworth+subglacial+lake&rft.au=Mowlem%2C+Matthew+C%3BTsaloglou%2C+Maria-Nefeli%3BWaugh%2C+Edward+M%3BFloquet%2C+Cedric+F+A%3BSaw%2C+Kevin%3BFowler%2C+Lee%3BBrown%2C+Robin%3BPearce%2C+David+A%3BWyatt%2C+James+B%3BBeaton%2C+Alexander+D%3BBrito%2C+Mario+P%3BHodgson%2C+Dominic+A%3BGriffiths%2C+Gwyn%3BBentley%2C+M+J%3BBlake%2C+D%3BCapper%2C+L%3BClarke%2C+R%3BCockell%2C+Charles+S%3BCorr%2C+H+F+J%3BHarris%2C+W%3BHill%2C+C%3BHindmarsh%2C+Richard+C+A%3BKing%2C+E%3BLamb%2C+H%3BMaher%2C+B%3BMakinson%2C+K%3BParnell%2C+J%3BPriscu%2C+John%3BRivera%2C+A%3BRoss%2C+Neil%3BSiegert%2C+Martin+J%3BSmith%2C+A+M%3BTait%2C+A%3BTranter%2C+Martyn%3BWadham%2C+Jemma+L%3BWhalley%2C+B%3BWoodward%2C+J&rft.aulast=Mowlem&rft.aufirst=Matthew&rft.date=2011-01-01&rft.volume=192&rft.issue=&rft.spage=159&rft.isbn=9781118670354&rft.btitle=&rft.title=Geophysical+Monograph&rft.issn=00658448&rft_id=info:doi/10.1002%2F9781118670354.ch10 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 171 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2014-03-14 N1 - CODEN - GPMGAD N1 - SubjectsTermNotLitGenreText - acoustical methods; Antarctic ice sheet; Antarctica; biota; cores; design; drilling; geomorphology; geophysical methods; geophysical surveys; gravity methods; instruments; lacustrine environment; lacustrine features; Lake Ellsworth; lake sediments; lakes; microorganisms; sediments; sonar methods; subglacial environment; subglacial lakes; surveys; West Antarctic ice sheet DO - http://dx.doi.org/10.1002/9781118670354.ch10 ER - TY - JOUR T1 - Greenland ice sheet mass balance; distribution of increased mass loss with climate warming; 2003-907 versus 1992-2002 AN - 875012321; 2011-054863 AB - We derive mass changes of the Greenland ice sheet (GIS) for 2003-07 from ICESat laser altimetry and compare them with results for 1992-2002 from ERS radar and airborne laser altimetry. The GIS continued to grow inland and thin at the margins during 2003-07, but surface melting and accelerated flow significantly increased the marginal thinning compared with the 1990s. The net balance changed from a small loss of 7+ or -3 Gt a (super -1) in the 1990s to 171+ or -4 Gt a (super -1) for 2003-07, contributing 0.5 mm a (super -1) to recent global sea-level rise. We divide the derived mass changes into two components: (1) from changes in melting and ice dynamics and (2) from changes in precipitation and accumulation rate. We use our firn compaction model to calculate the elevation changes driven by changes in both temperature and accumulation rate and to calculate the appropriate density to convert the accumulation-driven changes to mass changes. Increased losses from melting and ice dynamics (17-206 Gt a (super -1) ) are over seven times larger than increased gains from precipitation (10-35 Gt a (super -1) ) during a warming period of approximately 2 K(10 a) (super -1) over the GIS. Above 2000 m elevation, the rate of gain decreased from 44 to 28 Gt a (super -1) , while below 2000 m the rate of loss increased from 51 to 198 Gt a (super -1) . Enhanced thinning below the equilibrium line on outlet glaciers indicates that increased melting has a significant impact on outlet glaciers, as well as accelerating ice flow. Increased thinning at higher elevations appears to be induced by dynamic coupling to thinning at the margins on decadal timescales. JF - Journal of Glaciology AU - Zwally, H Jay AU - Li, Jun AU - Brenner, Anita C AU - Beckley, Matthew AU - Cornejo, Helen G AU - DiMarzio, John AU - Giovinetto, Mario B AU - Neumann, Thomas A AU - Robbins, John AU - Saba, Jack L AU - Yi, Donghui AU - Wang, Weili Y1 - 2011 PY - 2011 DA - 2011 SP - 88 EP - 102 PB - International Glaciological Society, Cambridge VL - 57 IS - 201 SN - 0022-1430, 0022-1430 KW - density KW - ICESat KW - Arctic region KW - firn KW - elevation KW - Greenland ice sheet KW - altimetry KW - satellite methods KW - ice sheets KW - climate change KW - temperature KW - compaction KW - Greenland KW - geographic information systems KW - mass balance KW - ice KW - climate effects KW - information systems KW - glacial geology KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/875012321?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Glaciology&rft.atitle=Greenland+ice+sheet+mass+balance%3B+distribution+of+increased+mass+loss+with+climate+warming%3B+2003-907+versus+1992-2002&rft.au=Zwally%2C+H+Jay%3BLi%2C+Jun%3BBrenner%2C+Anita+C%3BBeckley%2C+Matthew%3BCornejo%2C+Helen+G%3BDiMarzio%2C+John%3BGiovinetto%2C+Mario+B%3BNeumann%2C+Thomas+A%3BRobbins%2C+John%3BSaba%2C+Jack+L%3BYi%2C+Donghui%3BWang%2C+Weili&rft.aulast=Zwally&rft.aufirst=H&rft.date=2011-01-01&rft.volume=57&rft.issue=201&rft.spage=88&rft.isbn=&rft.btitle=&rft.title=Journal+of+Glaciology&rft.issn=00221430&rft_id=info:doi/ L2 - http://www.igsoc.org/journal/57/201/j10j101.pdf http://www.igsoc.org/journal/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 43 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - JOGLAO N1 - SubjectsTermNotLitGenreText - altimetry; Arctic region; climate change; climate effects; compaction; density; elevation; firn; geographic information systems; glacial geology; Greenland; Greenland ice sheet; ice; ice sheets; ICESat; information systems; mass balance; satellite methods; temperature ER - TY - JOUR T1 - Radiometric Performance of the CERES Earth Radiation Budget Climate Record Sensors on the EOS AN - 864962125; 14444964 AB - The Clouds and the Earth's Radiant Energy System (CERES) flight models 1 through 4 instruments were launched aboard NASA's Earth Observing System (EOS) Terra and Aqua spacecraft into 705-km sun-synchronous orbits with 10:30 p.m. and 1:30 a.m. local time equatorial crossing times. With these instruments CERES provides state-of-the-art observations and products related to the earth's radiation budget at the top of the atmosphere (TOA). The archived CERES science data products consist of geolocated and calibrated instantaneous filtered and unfiltered radiances through temporally and spatially averaged TOA, surface, and atmospheric fluxes. CERES-filtered radiance measurements cover three spectral bands: shortwave (0.3-5 mu m), total (0.3>100 mu m), and an atmospheric window channel (8-12 mu m). CERES climate data products realize a factor of 2-4 improvement in calibration accuracy and stability over the previotus Earth Radiation Budget Experiment (ERBE) products. To achieve this improvement there are three editions of data products. Edition 1 generates data products using gain coefficients derived from ground calibrations. After a minimum of four months, the calibration data are examined to remove drifts in the calibration. The data are then reprocessed to produce the edition 2 data products. These products are available for science investigations for which an accuracy of 2% is sufficient. Also, a validation protocol is applied to these products to find problems and develop solutions, after which edition 3 data products will be computed, for which the objectives are calibration stability of better than 0.2% and calibration traceability from ground to flight of 0.25%. This paper reports the status of the radiometric accuracy and stability of the CERES edition 2 instrument data products through April 2007. JF - Journal of Atmospheric and Oceanic Technology AU - Priestley, Kory J AU - Smith, GLouis AU - Thomas, Susan AU - Cooper, Denise AU - Lee, Robert B, III AU - Walikainen, Dale AU - Hess, Phillip AU - Szewczyk, ZPeter AU - Wilson, Robert AD - NASA Langley Research Center, Mail Stop 420, Langley Research Center, Hampton, VA 23681, USA, g.l.smith@larc.nasa.gov Y1 - 2011/01// PY - 2011 DA - January 2011 SP - 3 EP - 21 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 USA VL - 28 IS - 1 SN - 0739-0572, 0739-0572 KW - Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Radiation budgets KW - Satellite observations KW - Climate records KW - Instrumentation/sensors KW - Marine KW - Meteorological data KW - Climate models KW - Sensors KW - Climates KW - Climate change KW - Atmosphere KW - Model Studies KW - Channels KW - Clouds KW - Radiation budget KW - Radiance KW - Calibrations KW - Radiation KW - Asteroids KW - Ocean-atmosphere system KW - Archives KW - M2 551.521:Radiation (551.521) KW - Q2 09262:Methods and instruments KW - O 3010:Geology and Geophysics KW - SW 0540:Properties of water UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/864962125?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Atmospheric+and+Oceanic+Technology&rft.atitle=Radiometric+Performance+of+the+CERES+Earth+Radiation+Budget+Climate+Record+Sensors+on+the+EOS&rft.au=Priestley%2C+Kory+J%3BSmith%2C+GLouis%3BThomas%2C+Susan%3BCooper%2C+Denise%3BLee%2C+Robert+B%2C+III%3BWalikainen%2C+Dale%3BHess%2C+Phillip%3BSzewczyk%2C+ZPeter%3BWilson%2C+Robert&rft.aulast=Priestley&rft.aufirst=Kory&rft.date=2011-01-01&rft.volume=28&rft.issue=1&rft.spage=3&rft.isbn=&rft.btitle=&rft.title=Journal+of+Atmospheric+and+Oceanic+Technology&rft.issn=07390572&rft_id=info:doi/10.1175%2F2010JTECHA1521.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-05-01 N1 - Number of references - 25 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Radiance; Sensors; Climate change; Ocean-atmosphere system; Archives; Clouds; Meteorological data; Radiation budget; Climate models; Asteroids; Channels; Radiation; Calibrations; Climates; Atmosphere; Model Studies; Marine DO - http://dx.doi.org/10.1175/2010JTECHA1521.1 ER - TY - JOUR T1 - The role of virtual globes in geoscience AN - 864948271; 2011-038457 JF - Computers & Geosciences AU - Bailey, John E AU - Chen, Aijun A2 - Bailey, John A2 - Chen, Aijun Y1 - 2011/01// PY - 2011 DA - January 2011 SP - 1 EP - 2 PB - Elsevier, Amsterdam VL - 37 IS - 1 SN - 0098-3004, 0098-3004 KW - geology KW - visualization KW - virtual globes KW - utilization KW - technology KW - computer networks KW - World Wide Web KW - Internet KW - instruments KW - remote sensing KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/864948271?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Computers+%26+Geosciences&rft.atitle=The+role+of+virtual+globes+in+geoscience&rft.au=Bailey%2C+John+E%3BChen%2C+Aijun&rft.aulast=Bailey&rft.aufirst=John&rft.date=2011-01-01&rft.volume=37&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Computers+%26+Geosciences&rft.issn=00983004&rft_id=info:doi/10.1016%2Fj.cageo.2010.06.001 L2 - http://www.sciencedirect.com/science?_ob=JournalURL&_cdi=5840&_auth=y&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e5198452fad934c6346f38b57511c8e0 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - computer networks; geology; instruments; Internet; remote sensing; technology; utilization; virtual globes; visualization; World Wide Web DO - http://dx.doi.org/10.1016/j.cageo.2010.06.001 ER - TY - JOUR T1 - Integration of in-situ resource utilization into lunar/Mars exploration through field analogs AN - 864947518; 2011-040167 JF - Advances in Space Research AU - Sanders, Gerald B AU - Larson, William E Y1 - 2011/01// PY - 2011 DA - January 2011 SP - 20 EP - 29 PB - Elsevier, Oxford-New York VL - 47 IS - 1 SN - 0273-1177, 0273-1177 KW - United States KW - resources KW - technology KW - Hawaii Island KW - Coconino County Arizona KW - oxygen KW - Mauna Kea KW - Mars KW - terrestrial analogs KW - exploration KW - robotic exploration KW - Moses Lake KW - human exploration KW - water KW - protection KW - Washington KW - in situ KW - Moon KW - Hawaii County Hawaii KW - Flagstaff Arizona KW - Hawaii KW - East Pacific Ocean Islands KW - terrestrial planets KW - planets KW - habitat KW - planning KW - natural analogs KW - Arizona KW - Oceania KW - testing KW - air KW - Polynesia KW - regolith KW - design KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/864947518?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Space+Research&rft.atitle=Integration+of+in-situ+resource+utilization+into+lunar%2FMars+exploration+through+field+analogs&rft.au=Sanders%2C+Gerald+B%3BLarson%2C+William+E&rft.aulast=Sanders&rft.aufirst=Gerald&rft.date=2011-01-01&rft.volume=47&rft.issue=1&rft.spage=20&rft.isbn=&rft.btitle=&rft.title=Advances+in+Space+Research&rft.issn=02731177&rft_id=info:doi/10.1016%2Fj.asr.2010.08.020 L2 - http://www.sciencedirect.com/science/journal/02731177 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 14 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ASRSDW N1 - SubjectsTermNotLitGenreText - air; Arizona; Coconino County Arizona; design; East Pacific Ocean Islands; exploration; Flagstaff Arizona; habitat; Hawaii; Hawaii County Hawaii; Hawaii Island; human exploration; in situ; Mars; Mauna Kea; Moon; Moses Lake; natural analogs; Oceania; oxygen; planets; planning; Polynesia; protection; regolith; resources; robotic exploration; technology; terrestrial analogs; terrestrial planets; testing; United States; Washington; water DO - http://dx.doi.org/10.1016/j.asr.2010.08.020 ER - TY - JOUR T1 - Strike-slip fault patterns on Europa; obliquity or polar wander? AN - 864943617; 2011-039844 JF - Icarus AU - Rhoden, Alyssa Rose AU - Hurford, Terry A AU - Manga, Michael Y1 - 2011/01// PY - 2011 DA - January 2011 SP - 636 EP - 647 PB - Elsevier, New York, NY VL - 211 IS - 1 SN - 0019-1035, 0019-1035 KW - icy satellites KW - non-synchronous rotation KW - patterns KW - obliquity of the ecliptic KW - Europa Satellite KW - orbits KW - global KW - stress KW - prediction KW - Galilean satellites KW - strike-slip faults KW - eccentricity KW - tides KW - models KW - motions KW - rotation KW - polar wandering KW - diurnal variations KW - satellites KW - libration KW - accuracy KW - faults KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/864943617?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Strike-slip+fault+patterns+on+Europa%3B+obliquity+or+polar+wander%3F&rft.au=Rhoden%2C+Alyssa+Rose%3BHurford%2C+Terry+A%3BManga%2C+Michael&rft.aulast=Rhoden&rft.aufirst=Alyssa&rft.date=2011-01-01&rft.volume=211&rft.issue=1&rft.spage=636&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2010.11.002 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 37 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - accuracy; diurnal variations; eccentricity; Europa Satellite; faults; Galilean satellites; global; icy satellites; libration; models; motions; non-synchronous rotation; obliquity of the ecliptic; orbits; patterns; polar wandering; prediction; rotation; satellites; stress; strike-slip faults; tides DO - http://dx.doi.org/10.1016/j.icarus.2010.11.002 ER - TY - JOUR T1 - Explosive erosion during the Phoenix landing exposes subsurface water on Mars AN - 864943501; 2011-039824 JF - Icarus AU - Mehta, Manish AU - Renno, Nilton O AU - Marshall, John AU - Grover, M Rob AU - Sengupta, Anita AU - Rusche, Neal A AU - Kok, Jasper F AU - Arvidson, Raymond E AU - Markiewicz, Wojciech J AU - Lemmon, Mark T AU - Smith, Peter H Y1 - 2011/01// PY - 2011 DA - January 2011 SP - 172 EP - 194 PB - Elsevier, New York, NY VL - 211 IS - 1 SN - 0019-1035, 0019-1035 KW - soils KW - alteration KW - experimental studies KW - shock waves KW - Mars Phoenix Lander KW - numerical models KW - erosion KW - porous materials KW - Mars KW - landing sites KW - erosion rates KW - simulation KW - excavations KW - ground water KW - terrestrial planets KW - planets KW - physical properties KW - scale models KW - granular materials KW - diffusive gas explosive erosion KW - dynamics KW - pore pressure KW - fluidization KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/864943501?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Icarus&rft.atitle=Explosive+erosion+during+the+Phoenix+landing+exposes+subsurface+water+on+Mars&rft.au=Mehta%2C+Manish%3BRenno%2C+Nilton+O%3BMarshall%2C+John%3BGrover%2C+M+Rob%3BSengupta%2C+Anita%3BRusche%2C+Neal+A%3BKok%2C+Jasper+F%3BArvidson%2C+Raymond+E%3BMarkiewicz%2C+Wojciech+J%3BLemmon%2C+Mark+T%3BSmith%2C+Peter+H&rft.aulast=Mehta&rft.aufirst=Manish&rft.date=2011-01-01&rft.volume=211&rft.issue=1&rft.spage=172&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2010.10.003 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 59 N1 - PubXState - NY N1 - Document feature - illus. incl. 5 tables N1 - SuppNotes - Includes appendices; supplemental information/data is available in the online version of this article N1 - Last updated - 2012-06-07 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - alteration; diffusive gas explosive erosion; dynamics; erosion; erosion rates; excavations; experimental studies; fluidization; granular materials; ground water; landing sites; Mars; Mars Phoenix Lander; numerical models; physical properties; planets; pore pressure; porous materials; scale models; shock waves; simulation; soils; terrestrial planets DO - http://dx.doi.org/10.1016/j.icarus.2010.10.003 ER - TY - JOUR T1 - Greenland ice sheet mass balance: distribution of increased mass loss with climate warming; 2003-07 versus 1992-2002 AN - 862785243; 14622892 AB - We derive mass changes of the Greenland ice sheet (GIS) for 2003-07 from ICESat laser altimetry and compare them with results for 1992-2002 from ERS radar and airborne laser altimetry. The GIS continued to grow inland and thin at the margins during 2003-07, but surface melting and accelerated flow significantly increased the marginal thinning compared with the 1990s. The net balance changed from a small loss of 7 plus or minus 3 Gta super(-1) in the 1990s to 171 plus or minus 4 Gta super(-1) for 2003-07, contributing 0.5 mm a super(-1) to recent global sea-level rise. We divide the derived mass changes into two components: (1) from changes in melting and ice dynamics and (2) from changes in precipitation and accumulation rate. We use our firn compaction model to calculate the elevation changes driven by changes in both temperature and accumulation rate and to calculate the appropriate density to convert the accumulation-driven changes to mass changes. Increased losses from melting and ice dynamics (17-206 Gta super(-1)) are over seven times larger than increased gains from precipitation (10-35 Gta super(-1)) during a warming period of similar to 2 K(10 a) super(-1) over the GIS. Above 2000 m elevation, the rate of gain decreased from 44 to 28 Gta super(-1), while below 2000m the rate of loss increased from 51 to 198 Gta super(-1). Enhanced thinning below the equilibrium line on outlet glaciers indicates that increased melting has a significant impact on outlet glaciers, as well as accelerating ice flow. Increased thinning at higher elevations appears to be induced by dynamic coupling to thinning at the margins on decadal timescales. JF - Journal of Glaciology AU - Zwally, HJ AU - Li, J AU - Brenner, A C AU - Beckley, M AU - Cornejo, H G AU - DiMarzio, J AU - Giovinetto, M B AU - Neumann, T A AU - Robbins, J AU - Saba, J L AU - Yi, D AU - Wang, W AD - NASA Goddard Space Flight Center, Code 614.1, Greenbelt, Maryland 20771, USA, zwally@icesat2.gsfc.nasa.gov Y1 - 2011///0, PY - 2011 DA - 0, 2011 SP - 88 EP - 102 VL - 57 IS - 201 SN - 0022-1430, 0022-1430 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Aqualine Abstracts; Meteorological & Geoastrophysical Abstracts; Sustainability Science Abstracts KW - Outlets KW - Sea level KW - thinning KW - Rainfall KW - Glaciers KW - Climate change KW - Greenland ice sheet KW - Sea level rise KW - Compaction KW - Melting KW - Geographic Information Systems (GIS) KW - Ice drift KW - Geographical Information Systems KW - Marine KW - Ice KW - Airborne sensing KW - PN, Greenland, Greenland Ice Sheet KW - Climate warming KW - Temperature KW - glaciers KW - altimetry KW - Precipitation KW - Firn density KW - Altimetry KW - Elevation KW - Radar KW - Glaciation KW - Global warming KW - Lasers KW - Geographic information systems KW - Accumulation KW - Sea level changes KW - M2 551.324:Land Ice/Glaciers (551.324) KW - M3 1010:Issues in Sustainable Development KW - Q2 09150:Ice KW - AQ 00005:Underground Services and Water Use KW - SW 0820:Snow, ice and frost UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/862785243?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Glaciology&rft.atitle=Greenland+ice+sheet+mass+balance%3A+distribution+of+increased+mass+loss+with+climate+warming%3B+2003-07+versus+1992-2002&rft.au=Zwally%2C+HJ%3BLi%2C+J%3BBrenner%2C+A+C%3BBeckley%2C+M%3BCornejo%2C+H+G%3BDiMarzio%2C+J%3BGiovinetto%2C+M+B%3BNeumann%2C+T+A%3BRobbins%2C+J%3BSaba%2C+J+L%3BYi%2C+D%3BWang%2C+W&rft.aulast=Zwally&rft.aufirst=HJ&rft.date=2011-01-01&rft.volume=57&rft.issue=201&rft.spage=88&rft.isbn=&rft.btitle=&rft.title=Journal+of+Glaciology&rft.issn=00221430&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Airborne sensing; Climate change; Glaciers; Ice drift; Glaciation; Altimetry; Compaction; Sea level changes; Climate warming; Radar; Geographic Information Systems (GIS); Sea level rise; Greenland ice sheet; Lasers; Firn density; Precipitation; Ice; Sea level; thinning; Rainfall; Global warming; glaciers; altimetry; Geographic information systems; Melting; Outlets; Elevation; Temperature; Accumulation; Geographical Information Systems; PN, Greenland, Greenland Ice Sheet; Marine ER - TY - JOUR T1 - Comment on Singh and others, 'Hyperspectral analysis of snow reflectance to understand the effects of contamination and grain size' AN - 862784771; 14622900 AB - Imaging spectroscopy is emerging as a critical tool in our ability to move beyond simple detection of changes in cryosphere-climate interactions to attribution of these changes to forcings by changes in greenhouse gases and absorbing impurities (Dozier and others, 2009; Singh and others, 2010). Fresh in the growing literature related to imaging spectroscopy of snow and ice, Singh and others (2010) have explored the impact of dust on the hyperspectral reflectance of snow with the intent of understanding the capacity of imaging spectroscopy to quantify snow properties. The paper reaches relatively robust conclusions about the impact of soil on snow reflectance. As such, the efforts of the authors and the importance of their paper in providing foundational work on imaging spectroscopy of the cryo-sphere should be appreciated. JF - Journal of Glaciology AU - Painter, TH AD - Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, California 91109-8099, USA, Thomas.Painter@jpl.nasa.gov Y1 - 2011///0, PY - 2011 DA - 0, 2011 SP - 183 EP - 185 VL - 57 IS - 201 SN - 0022-1430, 0022-1430 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Aqualine Abstracts; Meteorological & Geoastrophysical Abstracts KW - Reflectance KW - Contamination KW - Particle Size KW - Climate change KW - Spectroscopy KW - Dust KW - Grain size KW - Snow KW - Snow and ice KW - Greenhouse effect KW - Dusts KW - Imaging techniques KW - Ecosystem disturbance KW - Capacity KW - Greenhouse gases KW - Q2 09243:Structure, mechanics and thermodynamics KW - SW 5010:Network design KW - AQ 00007:Industrial Effluents KW - M2 551.578.4:Crystalline (551.578.4) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/862784771?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Glaciology&rft.atitle=Comment+on+Singh+and+others%2C+%27Hyperspectral+analysis+of+snow+reflectance+to+understand+the+effects+of+contamination+and+grain+size%27&rft.au=Painter%2C+TH&rft.aulast=Painter&rft.aufirst=TH&rft.date=2011-01-01&rft.volume=57&rft.issue=201&rft.spage=183&rft.isbn=&rft.btitle=&rft.title=Journal+of+Glaciology&rft.issn=00221430&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Reflectance; Contamination; Snow; Grain size; Climate change; Greenhouse effect; Dust; Ecosystem disturbance; Imaging techniques; Snow and ice; Greenhouse gases; Spectroscopy; Particle Size; Capacity; Dusts ER - TY - JOUR T1 - Stability of massive ground ice bodies in University Valley, McMurdo dry valleys of Antarctica; using stable O-H isotope as tracers of sublimation in hyper-arid regions AN - 861988152; 2011-036210 AB - To date, studies of the stability of subsurface ice in the McMurdo Dry Valleys of Antarctica have been mainly based on climate-based vapor diffusion models. In University Valley (1800 m), a small glacier is found at the base of the head of the valley, and adjacent to the glacier, a buried body of massive ice was uncovered beneath 20-40 cm of loose cryotic sediments and sandstone boulders. This study assesses the origin and stability of the buried body of massive ice by measuring the geochemistry and stable O-H isotope composition of the ice and applies a sublimation and molecular diffusion model that accounts for the observed trends. The results indicate that the buried massive ice body represents an extension of the adjacent glacier that was buried by a rock avalanche during a cold climate period. The contrasting delta (super 18) O profiles and regression slope values between the uppermost 6 cm of the buried massive ice (upward convex delta (super 18) O profile and S (sub D-18O) = 5.1) and that below it (progressive increase in delta (super 18) O and S (sub D-18O) = 6.4) suggest independent post-depositional processes affected the isotope composition of the ice. The upward convex delta (super 18) O profile in the uppermost 6 cm is consistent with the ice undergoing sublimation. Using a sublimation and molecular diffusion model, and assuming that diffusion occurred through solid ice, the sublimation rate needed to fit the measured delta (super 18) O profile is 0.2 . 10 (super -3) mm yr (super -1) , a value that is more similar to net ice removal rates derived from (super 3) He data from cobbles in Beacon Valley till (7.0 . 10 (super -3) mm yr (super -1) ) than sublimation rates computed based on current climate (0.1-0.2 mm yr (super -1) ). We suggest that the climate-based sublimation rates are offset due to potential ice recharge mechanisms or to missing parameters, particularly the nature and thermo-physical properties of the overlying sediments (i.e., temperature, humidity, pore structure and ice content, grain size). JF - Earth and Planetary Science Letters AU - Lacelle, Denis AU - Davila, Alfonso F AU - Pollard, Wayne H AU - Andersen, Dale AU - Heldmann, Jennifer AU - Marinova, Margarita M AU - McKay, Christopher P Y1 - 2011/01// PY - 2011 DA - January 2011 SP - 403 EP - 411 PB - Elsevier, Amsterdam VL - 301 IS - 1-2 SN - 0012-821X, 0012-821X KW - permafrost KW - oxygen KW - isotopes KW - massive ice KW - stability KW - paleoclimatology KW - stable isotopes KW - cores KW - sublimation KW - ice KW - ground ice KW - climate KW - buried features KW - University Valley KW - diffusion KW - isotope ratios KW - O-18/O-16 KW - models KW - Antarctica KW - D/H KW - hydrogen KW - McMurdo dry valleys KW - Victoria Land KW - thermomechanical properties KW - glacial geology KW - 24:Quaternary geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/861988152?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=Stability+of+massive+ground+ice+bodies+in+University+Valley%2C+McMurdo+dry+valleys+of+Antarctica%3B+using+stable+O-H+isotope+as+tracers+of+sublimation+in+hyper-arid+regions&rft.au=Lacelle%2C+Denis%3BDavila%2C+Alfonso+F%3BPollard%2C+Wayne+H%3BAndersen%2C+Dale%3BHeldmann%2C+Jennifer%3BMarinova%2C+Margarita+M%3BMcKay%2C+Christopher+P&rft.aulast=Lacelle&rft.aufirst=Denis&rft.date=2011-01-01&rft.volume=301&rft.issue=1-2&rft.spage=403&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2010.11.028 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 50 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - Antarctica; buried features; climate; cores; D/H; diffusion; glacial geology; ground ice; hydrogen; ice; isotope ratios; isotopes; massive ice; McMurdo dry valleys; models; O-18/O-16; oxygen; paleoclimatology; permafrost; stability; stable isotopes; sublimation; thermomechanical properties; University Valley; Victoria Land DO - http://dx.doi.org/10.1016/j.epsl.2010.11.028 ER - TY - JOUR T1 - Satellite Remote Sensing and Hydrologic Modeling for Flood Inundation Mapping in Lake Victoria Basin: Implications for Hydrologic Prediction in Ungauged Basins AN - 856788491; 14230269 AB - Floods are among the most catastrophic natural disasters around the globe impacting human lives and infrastructure. Implementation of a flood prediction system can potentially help mitigate flood-induced hazards. Such a system typically requires implementation and calibration of a hydrologic model using in situ observations (i.e., rain and stream gauges). Recently, satellite remote sensing data have emerged as a viable alternative or supplement to in situ observations due to their availability over vast ungauged regions. The focus of this study is to integrate the best available satellite products within a distributed hydrologic model to characterize the spatial extent of flooding and associated hazards over sparsely gauged or ungauged basins. We present a methodology based entirely on satellite remote sensing data to set up and calibrate a hydrologic model, simulate the spatial extent of flooding, and evaluate the probability of detecting inundated areas. A raster-based distributed hydrologic model, Coupled Routing and Excess STorage (CREST), was implemented for the Nzoia basin, a subbasin of Lake Victoria in Africa. Moderate Resolution Imaging Spectroradiometer Terra-based and Advanced Spaceborne Thermal Emission and Reflection Radiometer-based flood inundation maps were produced over the region and used to benchmark the distributed hydrologic model simulations of inundation areas. The analysis showed the value of integrating satellite data such as precipitation, land cover type, topography, and other products along with space-based flood inundation extents as inputs to the distributed hydrologic model. We conclude that the quantification of flooding spatial extent through optical sensors can help to calibrate and evaluate hydrologic models and, hence, potentially improve hydrologic prediction and flood management strategies in ungauged catchments. JF - IEEE Transactions on Geoscience and Remote Sensing AU - Khan, Sadiq I AU - Hong, Yang AU - Wang, Jiahu AU - Yilmaz, Koray K AU - Gourley, Jonathan J AU - Adler, Robert F AU - Brakenridge, GRobert AU - Policelli, Fritz AU - Habib, Shahid AU - Irwin, Daniel AD - NASA Marshall Space Flight Center, Huntsville, AL, USA Y1 - 2011/01// PY - 2011 DA - Jan 2011 SP - 85 EP - 95 PB - Institute of Electrical and Electronics Engineers, Inc., 345 E. 47th St. NY NY 10017-2394 USA VL - 49 IS - 1 SN - 0196-2892, 0196-2892 KW - Aqualine Abstracts; Meteorological & Geoastrophysical Abstracts; Sustainability Science Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Remote Sensing KW - Prediction KW - Catchment area KW - Flood control KW - Ecological distribution KW - Remote sensing KW - Basins KW - Hazards KW - Lakes KW - Flood forecasting KW - Hydrologic Models KW - Catchment basins KW - Floods KW - Emissions KW - Lake Basins KW - Hydrologic models KW - Topography KW - Satellite Technology KW - Flood Basins KW - Simulation KW - Precipitation KW - Satellites KW - Natural disasters KW - Africa, Victoria L. KW - Satellite sensing KW - Satellite data KW - Numerical simulations KW - Stream KW - Flooding KW - Africa KW - AQ 00001:Water Resources and Supplies KW - SW 5040:Data acquisition KW - M2 556:General (556) KW - M3 1010:Issues in Sustainable Development KW - Q2 09171:Dynamics of lakes and rivers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/856788491?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IEEE+Transactions+on+Geoscience+and+Remote+Sensing&rft.atitle=Satellite+Remote+Sensing+and+Hydrologic+Modeling+for+Flood+Inundation+Mapping+in+Lake+Victoria+Basin%3A+Implications+for+Hydrologic+Prediction+in+Ungauged+Basins&rft.au=Khan%2C+Sadiq+I%3BHong%2C+Yang%3BWang%2C+Jiahu%3BYilmaz%2C+Koray+K%3BGourley%2C+Jonathan+J%3BAdler%2C+Robert+F%3BBrakenridge%2C+GRobert%3BPolicelli%2C+Fritz%3BHabib%2C+Shahid%3BIrwin%2C+Daniel&rft.aulast=Khan&rft.aufirst=Sadiq&rft.date=2011-01-01&rft.volume=49&rft.issue=1&rft.spage=85&rft.isbn=&rft.btitle=&rft.title=IEEE+Transactions+on+Geoscience+and+Remote+Sensing&rft.issn=01962892&rft_id=info:doi/10.1109%2FTGRS.2010.2057513 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-03-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Catchment area; Hazards; Satellite sensing; Flood forecasting; Floods; Stream; Ecological distribution; Flooding; Remote sensing; Satellite data; Numerical simulations; Catchment basins; Precipitation; Natural disasters; Topography; Hydrologic models; Flood control; Lakes; Emissions; Simulation; Basins; Satellites; Prediction; Remote Sensing; Satellite Technology; Hydrologic Models; Flood Basins; Lake Basins; Africa, Victoria L.; Africa DO - http://dx.doi.org/10.1109/TGRS.2010.2057513 ER - TY - JOUR T1 - Terrestrial waters and sea level variations on interannual time scale AN - 853218047; 2011-022255 AB - On decadal to multidecadal time scales, thermal expansion of sea waters and land ice loss are the main contributors to sea level variations. However, modification of the terrestrial water cycle due to climate variability and direct anthropogenic forcing may also affect sea level. For the past decades, variations in land water storage and corresponding effects on sea level cannot be directly estimated from observations because these are almost inexistent at global continental scale. However, global hydrological models developed for atmospheric and climatic studies can be used for estimating total water storage. For the recent years (since mid-2002), terrestrial water storage change can be directly estimated from observations of the GRACE space gravimetry mission. In this study, we analyse the interannual variability of total land water storage, and investigate its contribution to mean sea level variability at interannual time scale. We consider three different periods that, each, depend on data availability: (1) GRACE era (2003-2009), (2) 1993-2003 and (3) 1955-1995. For the GRACE era (period 1), change in land water storage is estimated using different GRACE products over the 33 largest river basins worldwide. For periods 2 and 3, we use outputs from the ISBA-TRIP (Interactions between Soil, Biosphere, and Atmosphere-Total Runoff Integrating Pathways) global hydrological model. For each time span, we compare change in land water storage (expressed in sea level equivalent) to observed mean sea level, either from satellite altimetry (periods 1 and 2) or tide gauge records (period 3). For each data set and each time span, a trend has been removed as we focus on the interannual variability. We show that whatever the period considered, interannual variability of the mean sea level is essentially explained by interannual fluctuations in land water storage, with the largest contributions arising from tropical river basins. JF - Global and Planetary Change AU - Llovel, William AU - Becker, M AU - Cazenave, A AU - Jevrejeva, S AU - Alkama, R AU - Decharme, B AU - Douville, H AU - Ablain, M AU - Beckley, B Y1 - 2011/01// PY - 2011 DA - January 2011 SP - 76 EP - 82 PB - Elsevier, Amsterdam VL - 75 IS - 1-2 SN - 0921-8181, 0921-8181 KW - hydrology KW - gauging KW - decadal variations KW - ocean circulation KW - terrestrial environment KW - sea water KW - annual variations KW - global KW - surface water KW - GRACE KW - altimetry KW - satellite methods KW - time scales KW - tides KW - fluctuations KW - sea-level changes KW - hydrologic cycle KW - ice KW - runoff KW - 21:Hydrogeology KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/853218047?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Global+and+Planetary+Change&rft.atitle=Terrestrial+waters+and+sea+level+variations+on+interannual+time+scale&rft.au=Llovel%2C+William%3BBecker%2C+M%3BCazenave%2C+A%3BJevrejeva%2C+S%3BAlkama%2C+R%3BDecharme%2C+B%3BDouville%2C+H%3BAblain%2C+M%3BBeckley%2C+B&rft.aulast=Llovel&rft.aufirst=William&rft.date=2011-01-01&rft.volume=75&rft.issue=1-2&rft.spage=76&rft.isbn=&rft.btitle=&rft.title=Global+and+Planetary+Change&rft.issn=09218181&rft_id=info:doi/10.1016%2Fj.gloplacha.2010.10.008 L2 - http://www.sciencedirect.com/science/journal/09218181 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 45 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - altimetry; annual variations; decadal variations; fluctuations; gauging; global; GRACE; hydrologic cycle; hydrology; ice; ocean circulation; runoff; satellite methods; sea water; sea-level changes; surface water; terrestrial environment; tides; time scales DO - http://dx.doi.org/10.1016/j.gloplacha.2010.10.008 ER - TY - JOUR T1 - The sensitivity of hillslope bedrock erosion to precipitation AN - 853217069; 2011-019815 AB - Decoupling the impacts of climate and tectonics on hillslope erosion rates is a challenging problem. Hillslope erosion rates are well known to respond to changes in hillslope boundary conditions (e.g. channel incision rates) through their dependence on soil thickness, and precipitation is an important control on soil formation. Surprisingly though, compilations of hillslope denudation rates suggest little precipitation sensitivity. To isolate the effects of precipitation and boundary condition, we measured rates of soil production from bedrock and described soils on hillslopes along a semi-arid to hyperarid precipitation gradient in northern Chile. In each climate zone, hillslopes with contrasting boundary conditions (actively incising channels versus non-eroding landforms) were studied. Channel incision rates, which ultimately drive hillslope erosion, varied with precipitation rather than tectonic setting throughout the study area. These precipitation-dependent incision rates are mirrored on the hillslopes, where erosion shifts from relatively fast and biologically-driven to extremely slow and salt-driven as precipitation decreases. Contrary to studies in humid regions, bedrock erosion rates increase with precipitation following a power law, from approximately 1 m Ma (super -1) in the hyperarid region to approximately 40 m Ma (super -1) in the semi-arid region. The effect of boundary condition on soil thickness was observed in all climate zones (thicker soils on hillslopes with stable boundaries compared to hillslopes bounded by active channels), but the difference in bedrock erosion rates between the hillslopes within a climate region (slower erosion rates on hillslopes with stable boundaries) decreased as precipitation decreased. The biotic-abiotic threshold also marks the precipitation rate below which bedrock erosion rates are no longer a function of soil thickness. Our work shows that hillslope processes become sensitive to precipitation as life disappears and the ability of the landscape to respond to tectonics decreases. Abstract Copyright (2010), John Wiley & Sons, Ltd. JF - Earth Surface Processes and Landforms AU - Owen, Justine J AU - Amundson, Ronald AU - Dietrich, William E AU - Nishiizumi, Kunihiko AU - Sutter, Brad AU - Chong, Guillermo Y1 - 2011/01// PY - 2011 DA - January 2011 SP - 117 EP - 135 PB - Wiley, Chichester VL - 36 IS - 1 SN - 0197-9337, 0197-9337 KW - soils KW - processes KW - hydrology KW - bedrock KW - hills KW - pedogenesis KW - erosion KW - slopes KW - rainfall KW - channels KW - water erosion KW - sensitivity analysis KW - thickness KW - geomorphology KW - soil erosion KW - climate KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/853217069?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+Surface+Processes+and+Landforms&rft.atitle=The+sensitivity+of+hillslope+bedrock+erosion+to+precipitation&rft.au=Owen%2C+Justine+J%3BAmundson%2C+Ronald%3BDietrich%2C+William+E%3BNishiizumi%2C+Kunihiko%3BSutter%2C+Brad%3BChong%2C+Guillermo&rft.aulast=Owen&rft.aufirst=Justine&rft.date=2011-01-01&rft.volume=36&rft.issue=1&rft.spage=117&rft.isbn=&rft.btitle=&rft.title=Earth+Surface+Processes+and+Landforms&rft.issn=01979337&rft_id=info:doi/10.1002%2Fesp.2083 L2 - http://www3.interscience.wiley.com/journal/117935722/grouphome/home.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2011-01-01 N1 - Number of references - 118 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bedrock; channels; climate; erosion; geomorphology; hills; hydrology; pedogenesis; processes; rainfall; sensitivity analysis; slopes; soil erosion; soils; thickness; water erosion DO - http://dx.doi.org/10.1002/esp.2083 ER - TY - JOUR T1 - Influence of variable uncertainties in seismic tomography models on constraining mantle viscosity from geoid observations AN - 853216157; 2011-022444 AB - The radial viscosity structure of the Earth is explored on the basis of the geoid observations. The variations of uncertainty in seismic tomography models are accounted for when finding the radial viscosity structure. The new methodology we propose attempts to fit more closely those features of the geoid that are better constrained by tomography models and avoids to fit those features that are poorly constrained. This approach is particularly important because the error of geoid predictions caused by uncertainties in seismic tomography models is overwhelmingly larger than the noise in the geoid measurements. The synthetic tests indicate that the viscosity structures obtained by disregarding the uncertainty variations in seismic tomography models can be biased depending on the geoid spectral band and on the "input" seismic tomography model. When the uncertainty variations in seismic models are considered in the inversion process, results do not indicate a viscosity in the transition zone lower than in the upper mantle. A robust feature found with the new method is a viscosity in the upper mantle two orders of magnitude smaller than in the lower mantle. The error covariance of seismic tomography models is critical for the method we suggest. A covariance matrix rigorously derived by seismologists should help to even more reliably infer the viscosity structure and relation between anomalies in density and seismic velocities from surface observations such as the geoid, and thus lead to a better knowledge of the Earth interior. JF - Physics of the Earth and Planetary Interiors AU - Lee, Choon-Ki AU - Han, Shin-Chan AU - Steinberger, Bernhard Y1 - 2011/01// PY - 2011 DA - January 2011 SP - 51 EP - 62 PB - Elsevier, Amsterdam VL - 184 IS - 1-2 SN - 0031-9201, 0031-9201 KW - tomography KW - upper mantle KW - seismology KW - lithosphere KW - statistical analysis KW - prediction KW - mantle KW - elastic waves KW - least-squares analysis KW - models KW - lower mantle KW - errors KW - viscosity KW - transition zones KW - mathematical methods KW - velocity KW - seismic waves KW - uncertainty KW - geoid KW - covariance analysis KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/853216157?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physics+of+the+Earth+and+Planetary+Interiors&rft.atitle=Influence+of+variable+uncertainties+in+seismic+tomography+models+on+constraining+mantle+viscosity+from+geoid+observations&rft.au=Lee%2C+Choon-Ki%3BHan%2C+Shin-Chan%3BSteinberger%2C+Bernhard&rft.aulast=Lee&rft.aufirst=Choon-Ki&rft.date=2011-01-01&rft.volume=184&rft.issue=1-2&rft.spage=51&rft.isbn=&rft.btitle=&rft.title=Physics+of+the+Earth+and+Planetary+Interiors&rft.issn=00319201&rft_id=info:doi/10.1016%2Fj.pepi.2010.10.012 L2 - http://www.sciencedirect.com/science/journal/00319201 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 42 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - PEPIAM N1 - SubjectsTermNotLitGenreText - covariance analysis; elastic waves; errors; geoid; least-squares analysis; lithosphere; lower mantle; mantle; mathematical methods; models; prediction; seismic waves; seismology; statistical analysis; tomography; transition zones; uncertainty; upper mantle; velocity; viscosity DO - http://dx.doi.org/10.1016/j.pepi.2010.10.012 ER - TY - JOUR T1 - Icesat and icesat-2 applications: progress and prospect AN - 1832668729; 726153-9 AB - The primary mission of the Ice, Cloud and Land Elevation Satellite was the global monitoring of polar ice change. ICESat entered a 91-day exact repeat orbit with 33-day subcycles at 600km altitude and prescribed ground tracks for measuring elevations of ice sheets, sea ice and forest canopy. Global observation systems are being enhanced by ICESat's precise measurement. With three big missions, it has obvious superiority in the remote sensing of polar ice and snow. Firstly, it was specifically intended for ICESat to estimate the change in polar icesheet contributions to current and future sea-level rise. ICESat not only assessed the mass balance and mechanisms that drive those changes, but improved predictive ice sheet models. Secondly, as a new and powerful tool, ICESat was designed to measure changes in the spatial patterns of freeboard and thickness of seaice by improving narrow lead detection. Finally, it will contribute much to the vegetation and ecosystem science in terms of estimating forest canopy height and describing topographic relief and vegetation vertical structure. ICESat-2, which is the successor to ICESat, is a subsequent mission planned by NASA. ICESat-2 will be launched in late 2015 and will follow the ICESat orbit. In contrast to ICESat, ICESat-2 will employ micro-pulse multi-beam method. ICESat-2 will apply dense cross-track sampling to determine the effect of surface slope. The sensor will have a high laser repetition rate of 10kHz, which corresponds to an along-track sampling interval of about 0.7m. The sensor has 9 beams with varying energy. In contrast to its predecessor, ICESat-2 will measure elevation over steep and very rough areas precisely. JF - Jidi Yanjiu = Chinese Journal of Polar Research AU - Yang, Fan AU - Wen, Jiahong AU - Wang, Weili Y1 - 2011 PY - 2011 DA - 2011 SP - 138 EP - 148 PB - Science Press, Beijing VL - 23 IS - 2 SN - 1007-7073, 1007-7073 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832668729?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Jidi+Yanjiu+%3D+Chinese+Journal+of+Polar+Research&rft.atitle=Icesat+and+icesat-2+applications%3A+progress+and+prospect&rft.au=Yang%2C+Fan%3BWen%2C+Jiahong%3BWang%2C+Weili&rft.aulast=Yang&rft.aufirst=Fan&rft.date=2011-01-01&rft.volume=23&rft.issue=2&rft.spage=138&rft.isbn=&rft.btitle=&rft.title=Jidi+Yanjiu+%3D+Chinese+Journal+of+Polar+Research&rft.issn=10077073&rft_id=info:doi/ LA - Chinese DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Zur Erstellung von Herdflaechenloesungen fuer lunare Tiefbeben TT - The determination of fault plane solutions for deep-focus lunar moonquakes AN - 1828846661; 2016-086014 JF - Jahrestagung der Deutschen Geophysikalischen Gesellschaft e.V. AU - Knapmeyer, M AU - Weber, R C AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 144 PB - Deutsche Geophysikalische Gesellschaft e.V., Clausthal-Zellerfeld VL - 71 SN - 0344-7251, 0344-7251 KW - moonquakes KW - fault planes KW - seismicity KW - Moon KW - deep-focus earthquakes KW - Earth tides KW - stress KW - inverse problem KW - earthquakes KW - faults KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828846661?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Jahrestagung+der+Deutschen+Geophysikalischen+Gesellschaft+e.V.&rft.atitle=Zur+Erstellung+von+Herdflaechenloesungen+fuer+lunare+Tiefbeben&rft.au=Knapmeyer%2C+M%3BWeber%2C+R+C%3BAnonymous&rft.aulast=Knapmeyer&rft.aufirst=M&rft.date=2011-01-01&rft.volume=71&rft.issue=&rft.spage=144&rft.isbn=&rft.btitle=&rft.title=Jahrestagung+der+Deutschen+Geophysikalischen+Gesellschaft+e.V.&rft.issn=03447251&rft_id=info:doi/ L2 - http://www.geomet.uni-koeln.de/fileadmin/DGG2011/abstract_volume_2011-02-04.pdf LA - German DB - GeoRef N1 - Conference title - 71. Jahrestagung der Deutschen Geophysikalischen Gesellschaft N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - deep-focus earthquakes; Earth tides; earthquakes; fault planes; faults; inverse problem; Moon; moonquakes; seismicity; stress ER - TY - JOUR T1 - Microphysical, macrophysical and radiative signatures of volcanic aerosols in trade wind cumulus observed by the A-Train AN - 1773797433; 2016-021349 AB - Increased aerosol concentrations can raise planetary albedo not only by reflecting sunlight and increasing cloud albedo, but also by changing cloud amount. However, detecting aerosol effect on cloud amount has been elusive to both observations and modeling due to potential buffering mechanisms and convolution of meteorology. Here through a natural experiment provided by long-term degassing of a low-lying volcano and use of A-Train satellite observations, we show modifications of trade cumulus cloud fields including decreased droplet size, decreased precipitation efficiency and increased cloud amount are associated with volcanic aerosols. In addition we find significantly higher cloud tops for polluted clouds. We demonstrate that the observed microphysical and macrophysical changes cannot be explained by synoptic meteorology or the orographic effect of the Hawaiian Islands. The "total shortwave aerosol forcing", resulting from direct and indirect forcings including both cloud albedo and cloud amount, is almost an order of magnitude higher than aerosol direct forcing alone. Furthermore, the precipitation reduction associated with enhanced aerosol leads to large changes in the energetics of air-sea exchange and trade wind boundary layer. Our results represent the first observational evidence of large-scale increase of cloud amount due to aerosols in a trade cumulus regime, which can be used to constrain the representation of aerosol-cloud interactions in climate models. The findings also have implications for volcano-climate interactions and climate mitigation research. JF - Atmospheric Chemistry and Physics AU - Yuan, Tianle AU - Remer, Lorraine A AU - Yu, Hongbin Y1 - 2011 PY - 2011 DA - 2011 SP - 7119 EP - 7132 PB - Copernicus, Katlenburg-Lindau VL - 11 IS - 14 SN - 1680-7316, 1680-7316 KW - United States KW - albedo KW - Hawaii Island KW - biomass KW - atmospheric precipitation KW - droplets KW - mitigation KW - transport KW - volcanism KW - climate effects KW - Kilauea KW - climate forcing KW - boundary layer KW - clouds KW - Hawaii County Hawaii KW - condensation KW - pollutants KW - human activity KW - Halemaumau Crater KW - pollution KW - Hawaii KW - atmosphere KW - East Pacific Ocean Islands KW - satellite methods KW - size KW - evaporation KW - optical properties KW - humidity KW - solar radiation KW - Oceania KW - aerosols KW - Polynesia KW - sea-surface temperature KW - winds KW - remote sensing KW - MODIS KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773797433?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Chemistry+and+Physics&rft.atitle=Microphysical%2C+macrophysical+and+radiative+signatures+of+volcanic+aerosols+in+trade+wind+cumulus+observed+by+the+A-Train&rft.au=Yuan%2C+Tianle%3BRemer%2C+Lorraine+A%3BYu%2C+Hongbin&rft.aulast=Yuan&rft.aufirst=Tianle&rft.date=2011-01-01&rft.volume=11&rft.issue=14&rft.spage=7119&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics&rft.issn=16807316&rft_id=info:doi/ L2 - http://www.atmos-chem-phys.net/11/7119/2011/acp-11-7119-2011.pdf http://www.atmospheric-chemistry-and-physics.net/home.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 69 N1 - Document feature - illus. incl. 1 table, sketch map N1 - SuppNotes - Published in Atmospheric Chemistry and Physics Discussion: 23 February 2011, http://www.atmos-chem-phys-discuss.net/11/6415/2011/acpd-11-6415-2011.ht ml; accessed in Nov., 2012 N1 - Last updated - 2016-03-17 N1 - SubjectsTermNotLitGenreText - aerosols; albedo; atmosphere; atmospheric precipitation; biomass; boundary layer; climate effects; climate forcing; clouds; condensation; droplets; East Pacific Ocean Islands; evaporation; Halemaumau Crater; Hawaii; Hawaii County Hawaii; Hawaii Island; human activity; humidity; Kilauea; mitigation; MODIS; Oceania; optical properties; pollutants; pollution; Polynesia; remote sensing; satellite methods; sea-surface temperature; size; solar radiation; transport; United States; volcanism; winds ER - TY - JOUR T1 - Dust optical properties over North Africa and Arabian Peninsula derived from the AERONET dataset AN - 1739084531; 2015-115916 AB - Dust optical properties over North Africa and the Arabian Peninsula are extracted from the quality assured multi-year datasets obtained at 14 sites of the Aerosol Robotic Network (AERONET). We select the data with (a) large aerosol optical depth (AOD > or = 0.4 at 440 nm) and (b) small Angstrom exponent (A (sub ext) < or = 0.2) for retaining high accuracy and reducing interference of non-dust aerosols. The result indicates that the major fraction of high aerosol optical depth days are dominated by dust over these sites even though it varies depending on location and time. We have found that the annual mean and standard deviation of single scattering albedo, asymmetry parameter, real refractive index, and imaginary refractive index for Saharan and Arabian desert dust is 0.944 + or - 0.005, 0.752 + or - 0.014, 1.498 + or - 0.032, and 0.0024 + or - 0.0034 at 550 nm wavelength, respectively. Dust aerosol selected by this method is less absorbing than the previously reported values over these sites. The weaker absorption of dust from this study is consistent with the studies using remote sensing techniques from satellite. These results can help to constrain uncertainties in estimating global dust shortwave radiative forcing. JF - Atmospheric Chemistry and Physics AU - Kim, D AU - Chin, M AU - Yu, H AU - Eck, T F AU - Sinyuk, A AU - Smirnov, A AU - Holben, B N Y1 - 2011 PY - 2011 DA - 2011 SP - 10733 EP - 10741 PB - Copernicus, Katlenburg-Lindau VL - 11 IS - 20 SN - 1680-7316, 1680-7316 KW - albedo KW - iron oxides KW - goethite KW - North Africa KW - spatial distribution KW - absorption KW - transport KW - hematite KW - sediments KW - oxides KW - heterogeneity KW - Asia KW - uncertainty KW - soils KW - clastic sediments KW - satellite methods KW - Egypt KW - Arabian Peninsula KW - optical properties KW - atmospheric transport KW - dust KW - Africa KW - aerosols KW - Sahara KW - interference KW - optical depth KW - Eastern Desert KW - accuracy KW - refractive index KW - remote sensing KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1739084531?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Chemistry+and+Physics&rft.atitle=Dust+optical+properties+over+North+Africa+and+Arabian+Peninsula+derived+from+the+AERONET+dataset&rft.au=Kim%2C+D%3BChin%2C+M%3BYu%2C+H%3BEck%2C+T+F%3BSinyuk%2C+A%3BSmirnov%2C+A%3BHolben%2C+B+N&rft.aulast=Kim&rft.aufirst=D&rft.date=2011-01-01&rft.volume=11&rft.issue=20&rft.spage=10733&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics&rft.issn=16807316&rft_id=info:doi/ L2 - http://www.atmos-chem-phys.net/11/10733/2011/acp-11-10733-2011.pdf http://www.atmospheric-chemistry-and-physics.net/home.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Date revised - 2015-01-01 N1 - Number of references - 36 N1 - Document feature - illus. incl. 1 table, sketch map N1 - SuppNotes - Published in Atmospheric Chemistry and Physics Discussion: 18 July 2011, http://www.atmos-chem-phys-discuss.net/11/20181/2011/acpd-11-20181-2011. html; accessed in Nov., 2013 N1 - Last updated - 2015-12-04 N1 - SubjectsTermNotLitGenreText - absorption; accuracy; aerosols; Africa; albedo; Arabian Peninsula; Asia; atmospheric transport; clastic sediments; dust; Eastern Desert; Egypt; goethite; hematite; heterogeneity; interference; iron oxides; North Africa; optical depth; optical properties; oxides; refractive index; remote sensing; Sahara; satellite methods; sediments; soils; spatial distribution; transport; uncertainty ER - TY - JOUR T1 - Journal of Geophysical Research AN - 1689590470; 2015-055811 JF - Journal of Geophysical Research AU - Navarro-Gonzalez, Rafael AU - McKay, Christopher P Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E12002 PB - American Geophysical Union, Washington, DC VL - 116 IS - E12 SN - 0148-0227, 0148-0227 KW - soils KW - chromatography KW - chemical analysis KW - Viking Program KW - mass spectroscopy KW - Mars KW - landing sites KW - Chile KW - perchlorate KW - terrestrial planets KW - planets KW - gas chromatography KW - South America KW - organic compounds KW - Atacama Desert KW - interplanetary comparison KW - spectroscopy KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1689590470?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Journal+of+Geophysical+Research&rft.au=Navarro-Gonzalez%2C+Rafael%3BMcKay%2C+Christopher+P&rft.aulast=Navarro-Gonzalez&rft.aufirst=Rafael&rft.date=2011-01-01&rft.volume=116&rft.issue=E12&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2011JE003880 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - Number of references - 24 N1 - PubXState - DC N1 - SuppNotes - For reference to original see Navarro-Gonzalez, R., et al., Journal of Geophysical Research, Vol. 115, No. E12, E12010, 2010; for reference to discussion see Biemann, K. and Bada, J. L., Journal of Geophysical Research, Vol. 116, No. E12, E12001, 2011 N1 - Last updated - 2015-06-18 N1 - SubjectsTermNotLitGenreText - Atacama Desert; chemical analysis; Chile; chromatography; gas chromatography; interplanetary comparison; landing sites; Mars; mass spectroscopy; organic compounds; perchlorate; planets; soils; South America; spectroscopy; terrestrial planets; Viking Program DO - http://dx.doi.org/10.1029/2011JE003880 ER - TY - JOUR T1 - Isotopic evidence for a Martian regolith component in shergottite meteorites AN - 1689590468; 2015-055715 AB - The (super 80) Kr excesses determined in the gas-rich impact-melt (GRIM) glasses in EET79001 and Shergotty correlate poorly with the (super 129) Xe (sub M) (Martian atmosphere) suggesting that the majority of the neutron-capture (super 80) Kr (sub n) was not shock-implanted along with (super 129) Xe (sub M) into these glasses during impact. This inference is consistent with the variations in delta (super 80) Kr (sub n) excesses observed in these samples. The results reported here indicate that the (super 80) Kr (sub n) excesses in these glasses were produced in the same way as the (super 149) Sm isotopic deficits, i.e., by thermal neutron (n) capture on Br and Sm occurring in the glass-precursor regolith materials on Mars. The thermal neutron fluences calculated from (super 80) Kr (sub n) excesses ( approximately 0.3-1.0X10 (super 15) n/cm (super 2) ) and from (super 149) Sm deficits (1.0+ or -0.4X10 (super 15) n/cm (super 2) ) agree with each other confirming that (super 80) Kr (sub n) was mostly produced in situ. In the Martian regolith, thermal (n) and fast (N) neutrons occur together. Also, in the GRIM glasses, the (super 83) Kr/ (super 86) Kr ratios correlate positively with (super 84) Kr/ (super 86) Kr indicating that the cosmogenic Kr contains a fast neutron-produced component in addition to Kr produced by galactic cosmic and solar cosmic irradiation. Using (super 83) Kr (sub N) and (super 84) Kr (sub N) excesses produced by fast neutron reactions on Rb and Sr targets in some of these glasses, we determine fast neutron fluences of approximately 3-47X10 (super 15) N/cm (super 2) . The integrated fluences of thermal and fast neutrons in GRIM glasses suggest that the glass-precursor materials were irradiated at different depths in the top few meters of the water-ice-bearing regolith near the shergottite source regions on Mars. JF - Journal of Geophysical Research AU - Rao, M Nageswara AU - Nyquist, L E AU - Bogard, D D AU - Garrison, D H AU - Sutton, S R AU - Michel, R AU - Reedy, R C AU - Leya, I Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E08006 PB - American Geophysical Union, Washington, DC VL - 116 IS - E8 SN - 0148-0227, 0148-0227 KW - solar system KW - stony meteorites KW - isotopes KW - Martian meteorites KW - Mars KW - xenon KW - krypton KW - achondrites KW - stable isotopes KW - terrestrial planets KW - SNC Meteorites KW - Kr-80 KW - planets KW - meteorites KW - shergottite KW - neutrons KW - noble gases KW - Xe-129 KW - regolith KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1689590468?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Isotopic+evidence+for+a+Martian+regolith+component+in+shergottite+meteorites&rft.au=Rao%2C+M+Nageswara%3BNyquist%2C+L+E%3BBogard%2C+D+D%3BGarrison%2C+D+H%3BSutton%2C+S+R%3BMichel%2C+R%3BReedy%2C+R+C%3BLeya%2C+I&rft.aulast=Rao&rft.aufirst=M&rft.date=2011-01-01&rft.volume=116&rft.issue=E8&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JE003764 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - Number of references - 49 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2015-06-18 N1 - SubjectsTermNotLitGenreText - achondrites; isotopes; Kr-80; krypton; Mars; Martian meteorites; meteorites; neutrons; noble gases; planets; regolith; shergottite; SNC Meteorites; solar system; stable isotopes; stony meteorites; terrestrial planets; Xe-129; xenon DO - http://dx.doi.org/10.1029/2010JE003764 ER - TY - JOUR T1 - Posteucritic magmatism on Vesta; evidence from the petrology and thermal history of diogenites AN - 1689590118; 2015-055717 AB - We report on the petrology and the thermal histories of 13 diogenites in order to constrain the formation processes of the Vestan crust. We classify diogenites into unequilibrated and equilibrated diogenites in a scheme similar to that for basaltic eucrites. Pyroxenes in unequilibrated diogenites are chemically zoned, indicating that they crystallized rapidly from melts and escaped from global crustal metamorphism. The presence of unequilibrated diogenites casts doubt on the fact that all the diogenites formed at depth in the parent body, as commonly thought. Some diogenites probably crystallized in shallow intrusions or were extruded on the surface. These facts strengthen the geochemical evidence that diogenites and eucrites are not directly cogenetic and suggest that at least some diogenites have intruded the early formed eucritic crust. Thus, diogenites are certainly not the products of the crystallization of the magma ocean that triggered the differentiation of Vesta but are more likely cumulates associated with a later stage of magmatism. Furthermore, the intrusion of diogenites could have significantly thickened the early formed crust, making it difficult to excavate deep-seated olivine mantle by moderate impact events. JF - Journal of Geophysical Research AU - Yamaguchi, Akira AU - Barrat, Jean-Alix AU - Ito, Motoo AU - Bohn, Marcel Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E08009 PB - American Geophysical Union, Washington, DC VL - 116 IS - E8 SN - 0148-0227, 0148-0227 KW - silicates KW - petrology KW - stony meteorites KW - asteroids KW - Vesta Asteroid KW - magmatism KW - diogenite KW - olivine group KW - impacts KW - thermal history KW - achondrites KW - nesosilicates KW - meteorites KW - pyroxene group KW - mineral composition KW - olivine KW - orthosilicates KW - eucrite KW - crust KW - chain silicates KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1689590118?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Posteucritic+magmatism+on+Vesta%3B+evidence+from+the+petrology+and+thermal+history+of+diogenites&rft.au=Yamaguchi%2C+Akira%3BBarrat%2C+Jean-Alix%3BIto%2C+Motoo%3BBohn%2C+Marcel&rft.aulast=Yamaguchi&rft.aufirst=Akira&rft.date=2011-01-01&rft.volume=116&rft.issue=E8&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JE003753 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - Number of references - 46 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2015-06-18 N1 - SubjectsTermNotLitGenreText - achondrites; asteroids; chain silicates; crust; diogenite; eucrite; impacts; magmatism; meteorites; mineral composition; nesosilicates; olivine; olivine group; orthosilicates; petrology; pyroxene group; silicates; stony meteorites; thermal history; Vesta Asteroid DO - http://dx.doi.org/10.1029/2010JE003753 ER - TY - JOUR T1 - Climate forcing reconstructions for use in PMIP simulations of the last millennium (v1.0) AN - 1689588333; 2015-053351 AB - Simulations of climate over the Last Millennium (850-1850 CE) have been incorporated into the third phase of the Paleoclimate Modelling Intercomparison Project (PMIP3). The drivers of climate over this period are chiefly orbital, solar, volcanic, changes in land use/land cover and some variation in greenhouse gas levels. While some of these effects can be easily defined, the reconstructions of solar, volcanic and land use-related forcing are more uncertain. We describe here the approach taken in defining the scenarios used in PMIP3, document the forcing reconstructions and discuss likely implications. JF - Geoscientific Model Development (GMD) AU - Schmidt, G A AU - Jungclaus, J H AU - Ammann, C M AU - Bard, E AU - Braconnot, P AU - Crowley, T J AU - Delaygue, G AU - Joos, F AU - Krivova, N A AU - Muscheler, R AU - Otto-Bliesner, B L AU - Pongratz, J AU - Shindell, D T AU - Solanki, S K AU - Steinhilber, F AU - Vieira, L E A Y1 - 2011 PY - 2011 DA - 2011 SP - 33 EP - 45 PB - Copernicus Publications, Gottingen VL - 4 IS - 1 SN - 1991-959X, 1991-959X KW - Quaternary KW - solar forcing KW - paleoclimatology KW - Holocene KW - climate change KW - boundary conditions KW - models KW - Cenozoic KW - ozone KW - volcanoes KW - insolation KW - reconstruction KW - orbital observations KW - greenhouse gases KW - climate forcing KW - land use KW - climate KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1689588333?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geoscientific+Model+Development+%28GMD%29&rft.atitle=Climate+forcing+reconstructions+for+use+in+PMIP+simulations+of+the+last+millennium+%28v1.0%29&rft.au=Schmidt%2C+G+A%3BJungclaus%2C+J+H%3BAmmann%2C+C+M%3BBard%2C+E%3BBraconnot%2C+P%3BCrowley%2C+T+J%3BDelaygue%2C+G%3BJoos%2C+F%3BKrivova%2C+N+A%3BMuscheler%2C+R%3BOtto-Bliesner%2C+B+L%3BPongratz%2C+J%3BShindell%2C+D+T%3BSolanki%2C+S+K%3BSteinhilber%2C+F%3BVieira%2C+L+E+A&rft.aulast=Schmidt&rft.aufirst=G&rft.date=2011-01-01&rft.volume=4&rft.issue=1&rft.spage=33&rft.isbn=&rft.btitle=&rft.title=Geoscientific+Model+Development+%28GMD%29&rft.issn=1991959X&rft_id=info:doi/ L2 - http://www.geosci-model-dev.net/4/33/2011/gmd-4-33-2011.pdf http://www.geosci-model-dev.net/volumes_and_issues.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Date revised - 2015-01-01 N1 - Number of references - 92 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2015-06-18 N1 - SubjectsTermNotLitGenreText - boundary conditions; Cenozoic; climate; climate change; climate forcing; greenhouse gases; Holocene; insolation; land use; models; orbital observations; ozone; paleoclimatology; Quaternary; reconstruction; solar forcing; volcanoes ER - TY - JOUR T1 - Midinfrared spectroscopy of synthetic olivines; thermal emission, specular and diffuse reflectance, and attenuated total reflectance studies of forsterite to fayalite AN - 1689588080; 2015-055718 AB - Synthetic olivine samples ranging in composition from forsterite to fayalite are analyzed in the midinfrared using thermal emission, specular and diffuse reflectance, and attenuated total reflectance spectroscopies to study the spectral effects of Mg-Fe solid solution. For each method, fundamental bands gradually change in position and strength from Mg (sub 2) SiO (sub 4) at larger wave numbers to Fe (sub 2) SiO (sub 4) at smaller wave numbers. Each spectrum is diagnostic of chemistry within the continuum, as previously noted. In this study, 10 identified fundamental bands are traceable across the solid solution series for each technique. In pelletized sample spectra, the 10 bands shift approximately linearly in position by as little as 11 to as much as 64 cm (super -1) . In powdered sample spectra, the bands shift by as little as 12 to as much as 74 cm (super -1) (disregarding one outlier point). Moreover, for every spectral technique, an even larger linear shift is identified of a specific emissivity maximum/reflectivity minimum (the flection position). From forsterite to fayalite, this flection position shifts by at least 88 cm (super -1) , which is, on average, 48% more than the largest fundamental band shift within the same data set for the pelletized spectra and 44% more for the powdered spectra. Also the R (super 2) and 2sigma values of the best fit line for the flection position shift (versus Fo (sub #) ) generally were as good as or routinely better than those of the fundamental bands. Thus, the flection position should be considered as a means of determining Mg-Fe olivine composition when using thermal emission, specular reflectance, diffuse reflectance, or attenuated total reflectance spectroscopic data. JF - Journal of Geophysical Research AU - Lane, Melissa D AU - Glotch, Timothy D AU - Dyar, M Darby AU - Pieters, Carle M AU - Klima, Rachel AU - Hiroi, Takahiro AU - Bishop, Janice L AU - Sunshine, Jessica Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E08010 PB - American Geophysical Union, Washington, DC VL - 116 IS - E8 SN - 0148-0227, 0148-0227 KW - silicates KW - olivine group KW - infrared spectra KW - forsterite KW - nesosilicates KW - Raman spectra KW - optical properties KW - fayalite KW - olivine KW - orthosilicates KW - thermal emission KW - spectra KW - reflectance KW - synthetic materials KW - Mossbauer spectra KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1689588080?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Midinfrared+spectroscopy+of+synthetic+olivines%3B+thermal+emission%2C+specular+and+diffuse+reflectance%2C+and+attenuated+total+reflectance+studies+of+forsterite+to+fayalite&rft.au=Lane%2C+Melissa+D%3BGlotch%2C+Timothy+D%3BDyar%2C+M+Darby%3BPieters%2C+Carle+M%3BKlima%2C+Rachel%3BHiroi%2C+Takahiro%3BBishop%2C+Janice+L%3BSunshine%2C+Jessica&rft.aulast=Lane&rft.aufirst=Melissa&rft.date=2011-01-01&rft.volume=116&rft.issue=E8&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JE003588 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - Number of references - 90 N1 - PubXState - DC N1 - Document feature - illus. incl. 8 tables N1 - Last updated - 2015-06-18 N1 - SubjectsTermNotLitGenreText - fayalite; forsterite; infrared spectra; Mossbauer spectra; nesosilicates; olivine; olivine group; optical properties; orthosilicates; Raman spectra; reflectance; silicates; spectra; synthetic materials; thermal emission DO - http://dx.doi.org/10.1029/2010JE003588 ER - TY - JOUR T1 - Results from the NMSU-NASA Marshall Space Flight Center LCROSS observational campaign AN - 1689588054; 2015-055713 AB - We observed the Lunar Crater Observation and Sensing Satellite (LCROSS) lunar impact on 9 October 2009 using three telescope and instrument combinations in southern New Mexico: the Agile camera with a V filter on the Astrophysical Research Consortium 3.5 m telescope at Apache Point Observatory (APO), a StellaCam video camera with an R filter on the New Mexico State University (NMSU) 1 m telescope at APO, and a Goodrich near-IR (J and H band) video camera on the NMSU 0.6 m telescope at Tortugas Mountain Observatory. The three data sets were analyzed to search for evidence of the debris plume that rose above the Cabeus crater shortly after the LCROSS impact. Although we saw no evidence of the plume in any of our data sets, we constrained its surface brightness through analysis of our photometrically calibrated data. The minimum surface brightness that we could have detected in our Agile data was 9.69 magnitudes arc sec (super -2) , which is 177 times fainter than the brightest part of the foreground ridge of Cabeus. In our near-IR data, our minimum detectable surface brightness was 8.58 magnitudes arc sec (super -2) , which is 370 times fainter than the brightest part of the foreground ridge in the J and H bands. The debris plume was detected by the LCROSS shepherding spacecraft and the Diviner radiometer on the Lunar Reconnaissance Orbiter. Given the plume radiance observed by LCROSS, we cannot distinguish between a conical or cylindrical plume geometry because when seen from Earth, both are below our detection thresholds. JF - Journal of Geophysical Research AU - Chanover, N J AU - Miller, C AU - Hamilton, R T AU - Suggs, R M AU - McMillan, R Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E08003 PB - American Geophysical Union, Washington, DC VL - 116 IS - E8 SN - 0148-0227, 0148-0227 KW - solar system KW - programs KW - New Mexico State University KW - impact features KW - Moon KW - Lunar Reconnaissance Orbiter KW - government agencies KW - LCROSS KW - satellite methods KW - research KW - craters KW - NASA KW - surface features KW - impact craters KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1689588054?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Results+from+the+NMSU-NASA+Marshall+Space+Flight+Center+LCROSS+observational+campaign&rft.au=Chanover%2C+N+J%3BMiller%2C+C%3BHamilton%2C+R+T%3BSuggs%2C+R+M%3BMcMillan%2C+R&rft.aulast=Chanover&rft.aufirst=N&rft.date=2011-01-01&rft.volume=116&rft.issue=E8&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JE003761 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - Number of references - 16 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2015-06-18 N1 - SubjectsTermNotLitGenreText - craters; government agencies; impact craters; impact features; LCROSS; Lunar Reconnaissance Orbiter; Moon; NASA; New Mexico State University; programs; remote sensing; research; satellite methods; solar system; surface features DO - http://dx.doi.org/10.1029/2010JE003761 ER - TY - JOUR T1 - Changes in the carbon cycle of Amazon ecosystems during the 2010 drought AN - 1687690404; PQ0001576365 AB - Satellite remote sensing was combined with the NASA-CASA (Carnegie Ames Stanford Approach) carbon cycle simulation model to evaluate the impact of the 2010 drought (July through September) throughout tropical South America. Results indicated that net primary production in Amazon forest areas declined by an average of 7% in 2010 compared to 2008. This represented a loss of vegetation CO sub(2) uptake and potential Amazon rainforest growth of nearly 0.5 Pg C in 2010. The largest overall decline in ecosystem carbon gains by land cover type was predicted for closed broadleaf forest areas of the Amazon river basin, including a large fraction of regularly flooded forest areas. Model results support the hypothesis that soil and dead wood carbon decomposition fluxes of CO sub(2) to the atmosphere were elevated during the drought period of 2010 in periodically flooded forest areas, compared to those for forests outside the main river floodplains. JF - Environmental Research Letters AU - Potter, Christopher AU - Klooster, Steven AU - Hiatt, Cyrus AU - Genovese, Vanessa AU - Castilla-Rubio, Juan Carlos AD - NASA Ames Research Center, Moffett Field, CA, USA, chris.potter@nasa.gov Y1 - 2011///0, PY - 2011 DA - 0, 2011 SP - 1 EP - 4 PB - IOP Publishing, The Public Ledger Building, Suite 929 Philadelphia PA 19106 United States VL - 6 IS - 3 SN - 1748-9326, 1748-9326 KW - Meteorological & Geoastrophysical Abstracts; Sustainability Science Abstracts; Environment Abstracts KW - Amazon KW - drought KW - forest KW - NPP KW - MODIS KW - Ecosystems KW - Remote sensing KW - Forests KW - Environmental research KW - Drought KW - Primary production KW - Soil KW - Droughts KW - Rivers KW - Drought periods KW - Carbon cycle KW - Vegetation KW - Wood KW - River basins KW - Satellites KW - Flood plains KW - Numerical simulations KW - South America, Amazon R. KW - Tropical environments KW - Uptake KW - Carbon dioxide KW - Brazil, Amazon R. basin KW - M3 1010:Issues in Sustainable Development KW - M2 551.510.3/.4:Physical Properties/Composition (551.510.3/.4) KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1687690404?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Research+Letters&rft.atitle=Changes+in+the+carbon+cycle+of+Amazon+ecosystems+during+the+2010+drought&rft.au=Potter%2C+Christopher%3BKlooster%2C+Steven%3BHiatt%2C+Cyrus%3BGenovese%2C+Vanessa%3BCastilla-Rubio%2C+Juan+Carlos&rft.aulast=Potter&rft.aufirst=Christopher&rft.date=2011-01-01&rft.volume=6&rft.issue=3&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Environmental+Research+Letters&rft.issn=17489326&rft_id=info:doi/10.1088%2F1748-9326%2F6%2F3%2F034024 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-06-01 N1 - Last updated - 2016-08-03 N1 - SubjectsTermNotLitGenreText - Flood plains; Numerical simulations; Drought periods; Ecosystems; Remote sensing; Carbon cycle; River basins; Environmental research; Drought; Primary production; Rivers; Forests; Wood; Vegetation; Satellites; Soil; Tropical environments; Uptake; Carbon dioxide; Droughts; South America, Amazon R.; Brazil, Amazon R. basin DO - http://dx.doi.org/10.1088/1748-9326/6/3/034024 ER - TY - JOUR T1 - The fate of Saharan dust across the Atlantic and implications for a Central American dust barrier AN - 1686062756; 2015-050200 AB - Saharan dust was observed over the Caribbean basin during the summer 2007 NASA Tropical Composition, Cloud, and Climate Coupling (TC (super 4) ) field experiment. Airborne Cloud Physics Lidar (CPL) and satellite observations from MODIS suggest a barrier to dust transport across Central America into the eastern Pacific. We use the NASA GEOS-5 atmospheric transport model with online aerosol tracers to perform simulations of the TC (super 4) time period in order to understand the nature of this barrier. Our simulations are driven by the Modern Era Retrospective-Analysis for Research and Applications (MERRA) meteorological analyses. Compared to observations from MODIS and CALIOP, GEOS-5 reproduces the observed location and magnitude of observed dust events, but our baseline simulation does not develop as strong a barrier to dust transport across Central America as observations suggest. Analysis of the dust transport dynamics and loss processes suggest that while both mechanisms play a role in defining the dust transport barrier, loss processes by wet removal of dust are about twice as important as transport. Sensitivity analyses with our model showed that the dust barrier would not exist without convective scavenging over the Caribbean. The best agreement between our model and the observations was obtained when dust wet removal was parameterized to be more aggressive, treating the dust as we do hydrophilic aerosols. JF - Atmospheric Chemistry and Physics AU - Nowottnick, E AU - Colarco, P AU - da Silva, A AU - Hlavka, D AU - McGill, M Y1 - 2011 PY - 2011 DA - 2011 SP - 8415 EP - 8431 PB - Copernicus, Katlenburg-Lindau VL - 11 IS - 16 SN - 1680-7316, 1680-7316 KW - laser methods KW - La Nina KW - atmospheric precipitation KW - nonpoint sources KW - climate change KW - spatial distribution KW - intertropical convergence zone KW - absorption KW - transport KW - tracers KW - sediments KW - meteorology KW - East Pacific KW - clastic sediments KW - GEOS-5 model KW - Caribbean region KW - convection KW - satellite methods KW - lidar methods KW - atmospheric transport KW - Pacific Ocean KW - dust KW - solar radiation KW - Africa KW - aerosols KW - Sahara KW - North Atlantic KW - Central America KW - Caribbean Sea KW - winds KW - Atlantic Ocean KW - Sahel KW - remote sensing KW - MODIS KW - airborne methods KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1686062756?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Chemistry+and+Physics&rft.atitle=The+fate+of+Saharan+dust+across+the+Atlantic+and+implications+for+a+Central+American+dust+barrier&rft.au=Nowottnick%2C+E%3BColarco%2C+P%3Bda+Silva%2C+A%3BHlavka%2C+D%3BMcGill%2C+M&rft.aulast=Nowottnick&rft.aufirst=E&rft.date=2011-01-01&rft.volume=11&rft.issue=16&rft.spage=8415&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics&rft.issn=16807316&rft_id=info:doi/ L2 - http://www.atmos-chem-phys.net/11/8415/2011/acp-11-8415-2011.pdf http://www.atmospheric-chemistry-and-physics.net/home.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Date revised - 2015-01-01 N1 - Number of references - 49 N1 - Document feature - illus. incl. 1 table, sketch maps N1 - SuppNotes - Published in Atmospheric Chemistry and Physics Discussion: 11 March 2011, http://www.atmos-chem-phys-discuss.net/11/8337/2011/acpd-11-8337-2011.ht ml; accessed in Dec., 2012 N1 - Last updated - 2015-06-05 N1 - SubjectsTermNotLitGenreText - absorption; aerosols; Africa; airborne methods; Atlantic Ocean; atmospheric precipitation; atmospheric transport; Caribbean region; Caribbean Sea; Central America; clastic sediments; climate change; convection; dust; East Pacific; GEOS-5 model; intertropical convergence zone; La Nina; laser methods; lidar methods; meteorology; MODIS; nonpoint sources; North Atlantic; Pacific Ocean; remote sensing; Sahara; Sahel; satellite methods; sediments; solar radiation; spatial distribution; tracers; transport; winds ER - TY - JOUR T1 - Earth's energy imbalance and implications AN - 1686061908; 2015-048286 AB - Improving observations of ocean heat content show that Earth is absorbing more energy from the Sun than it is radiating to space as heat, even during the recent solar minimum. The inferred planetary energy imbalance, 0.58 + or - 0.15 W m (super -2) during the 6-yr period 2005-2010, confirms the dominant role of the human-made greenhouse effect in driving global climate change. Observed surface temperature change and ocean heat gain together constrain the net climate forcing and ocean mixing rates. We conclude that most climate models mix heat too efficiently into the deep ocean and as a result underestimate the negative forcing by human-made aerosols. Aerosol climate forcing today is inferred to be -1.6 + or - 0.3 W m (super -2) , implying substantial aerosol indirect climate forcing via cloud changes. Continued failure to quantify the specific origins of this large forcing is untenable, as knowledge of changing aerosol effects is needed to understand future climate change. We conclude that recent slowdown of ocean heat uptake was caused by a delayed rebound effect from Mount Pinatubo aerosols and a deep prolonged solar minimum. Observed sea level rise during the Argo float era is readily accounted for by ice melt and ocean thermal expansion, but the ascendency of ice melt leads us to anticipate acceleration of the rate of sea level rise this decade. JF - Atmospheric Chemistry and Physics AU - Hansen, J AU - Sato, M AU - Kharecha, P AU - Von Schuckmann, K Y1 - 2011 PY - 2011 DA - 2011 SP - 13421 EP - 13449 PB - Copernicus, Katlenburg-Lindau VL - 11 IS - 24 SN - 1680-7316, 1680-7316 KW - clouds KW - albedo KW - sea water KW - human activity KW - sea ice KW - atmosphere KW - global change KW - climate change KW - temperature KW - sea-level changes KW - ozone KW - melting KW - stratosphere KW - mixing KW - ice KW - snow KW - solar radiation KW - climate effects KW - aerosols KW - ground-surface temperature KW - greenhouse gases KW - climate forcing KW - energy KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1686061908?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Chemistry+and+Physics&rft.atitle=Earth%27s+energy+imbalance+and+implications&rft.au=Hansen%2C+J%3BSato%2C+M%3BKharecha%2C+P%3BVon+Schuckmann%2C+K&rft.aulast=Hansen&rft.aufirst=J&rft.date=2011-01-01&rft.volume=11&rft.issue=24&rft.spage=13421&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics&rft.issn=16807316&rft_id=info:doi/ L2 - http://www.atmos-chem-phys.net/11/13421/2011/acp-11-13421-2011.pdf http://www.atmospheric-chemistry-and-physics.net/home.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Date revised - 2015-01-01 N1 - Number of references - 110 N1 - Document feature - illus. N1 - SuppNotes - Published in Atmospheric Chemistry and Physics Discussion: 29 September 2011, http://www.atmos-chem-phys-discuss.net/11/27031/2011/acpd-11-27031-2011. html; accessed in Nov., 2013 N1 - Last updated - 2015-06-05 N1 - SubjectsTermNotLitGenreText - aerosols; albedo; atmosphere; climate change; climate effects; climate forcing; clouds; energy; global change; greenhouse gases; ground-surface temperature; human activity; ice; melting; mixing; ozone; sea ice; sea water; sea-level changes; snow; solar radiation; stratosphere; temperature ER - TY - JOUR T1 - Accumulation of aerosols over the Indo-Gangetic plains and southern slopes of the Himalayas; distribution, properties and radiative effects during the 2009 pre-monsoon season AN - 1686060078; 2015-048283 AB - We examine the distribution of aerosols and associated optical/radiative properties in the Gangetic-Himalayan region from simultaneous radiometric measurements over the Indo-Gangetic Plains (IGP) and the foothill/southern slopes of the Himalayas during the 2009 pre-monsoon season. Enhanced dust transport extending from the Southwest Asian arid regions into the IGP, results in seasonal mean (April-June) aerosol optical depths of over 0.6 - highest over Southern Asia. The influence of dust loading is greater over the Western IGP as suggested by pronounced coarse mode peak in aerosol size distribution and spectral single scattering albedo (SSA). Transported dust in the IGP, driven by prevailing westerly airmass, is found to be more absorbing (SSA (sub 550 nm) <0.9) than the near-desert region in Northwestern (NW) India suggesting mixing with carbonaceous aerosols in the IGP. On the contrary, significantly reduced dust transport is observed over eastern IGP and foothill/elevated Himalayan slopes in Nepal where strongly absorbing haze is prevalent, as indicated by lower SSA (0.85-0.9 at 440-1020 nm), suggesting presence of more absorbing aerosols compared to IGP. Additionally, our observations show a distinct diurnal pattern of aerosols with characteristic large afternoon peak, from foothill to elevated mountain locations, associated with increased upslope transport of pollutants - that likely represent large-scale lifting of absorbing aerosols along the elevated slopes during pre-monsoon season. In terms of radiative impact of aerosols, over the source region of NW India, diurnal mean reduction in solar radiation fluxes was estimated to be 19-23 Wm (super -2) at surface (12-15% of the surface solar insolation). Furthermore, based on limited observations of aerosol optical properties during the pre-monsoon period and comparison of our radiative forcing estimates with published literature, there exists a general spatial heterogeneity in the regional aerosol forcing, associated with the absorbing aerosol distribution over northern India, with both diurnal mean surface forcing and forcing efficiency over the IGP exceeding that over Northwestern India. Finally, the role of the seasonal progressive buildup of aerosol loading and water vapor is investigated in the observed net aerosol radiative effect over Northwestern India. The radiative impact of water vapor is found to amplify the net regional aerosol radiative forcing suggesting that the two exert forcing in tandem leading to enhanced surface cooling. It is suggested that water vapor contribution should be taken into account while assessing aerosol forcing impact for this region and other seasonally similar environments. JF - Atmospheric Chemistry and Physics AU - Gautam, R AU - Hsu, N C AU - Tsay, S C AU - Lau, K M AU - Holben, B AU - Bell, S AU - Smirnov, A AU - Li, C AU - Hansell, R AU - Ji, Q AU - Payra, S AU - Aryal, D AU - Kayastha, R AU - Kim, K M Y1 - 2011 PY - 2011 DA - 2011 SP - 12841 EP - 12863 PB - Copernicus, Katlenburg-Lindau VL - 11 IS - 24 SN - 1680-7316, 1680-7316 KW - albedo KW - solar forcing KW - water vapor KW - Nepal KW - environmental effects KW - absorption KW - monsoons KW - Indo-Gangetic Plain KW - transport KW - Indian Peninsula KW - cooling KW - climate effects KW - Himalayas KW - diurnal variations KW - climate forcing KW - Asia KW - hydrology KW - rainfall KW - agriculture KW - optical properties KW - southwestern Asia KW - atmospheric transport KW - solar radiation KW - insolation KW - aerosols KW - seasonal variations KW - water resources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1686060078?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Chemistry+and+Physics&rft.atitle=Accumulation+of+aerosols+over+the+Indo-Gangetic+plains+and+southern+slopes+of+the+Himalayas%3B+distribution%2C+properties+and+radiative+effects+during+the+2009+pre-monsoon+season&rft.au=Gautam%2C+R%3BHsu%2C+N+C%3BTsay%2C+S+C%3BLau%2C+K+M%3BHolben%2C+B%3BBell%2C+S%3BSmirnov%2C+A%3BLi%2C+C%3BHansell%2C+R%3BJi%2C+Q%3BPayra%2C+S%3BAryal%2C+D%3BKayastha%2C+R%3BKim%2C+K+M&rft.aulast=Gautam&rft.aufirst=R&rft.date=2011-01-01&rft.volume=11&rft.issue=24&rft.spage=12841&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics&rft.issn=16807316&rft_id=info:doi/ L2 - http://www.atmos-chem-phys.net/11/12841/2011/acp-11-12841-2011.pdf http://www.atmospheric-chemistry-and-physics.net/home.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Date revised - 2015-01-01 N1 - Number of references - 94 N1 - Document feature - illus. incl. 4 tables, sketch maps N1 - SuppNotes - Includes supplement, http://www.atmos-chem-phys.net/11/12841/2011/acp-11-12841-2011-supplemen t.pdf; includes corrigendum, http://www.atmos-chem-phys.net/12/1525/2012/; published in Atmospheric Chemistry and Physics Discussion: 23 May 2011, http://www.atmos-chem-phys-discuss.net/11/15697/2011/acpd-11-15697-2011.ht ml; accessed in Nov., 2013 N1 - Last updated - 2015-06-05 N1 - SubjectsTermNotLitGenreText - absorption; aerosols; agriculture; albedo; Asia; atmospheric transport; climate effects; climate forcing; cooling; diurnal variations; environmental effects; Himalayas; hydrology; Indian Peninsula; Indo-Gangetic Plain; insolation; monsoons; Nepal; optical properties; rainfall; seasonal variations; solar forcing; solar radiation; southwestern Asia; transport; water resources; water vapor ER - TY - JOUR T1 - Water ice nucleation characteristics of JSC Mars-1 regolith simulant under simulated Martian atmospheric conditions AN - 1676579082; 2015-036746 AB - Water ice clouds in the Martian atmosphere are governed by parameters such as number density and particle size distribution that in turn affect how they influence the climate. With some of the underlying properties of cloud formation well known only for Earth, extrapolations to Mars are potentially misleading. We report here continued laboratory experiments to identify critical onset conditions for water ice formation under Martian cloud forming temperatures and water partial pressures (155-182 K, 7.6X10 (super -5) to 7.7X10 (super -3) Pa H (sub 2) O). By observing the 3 mu m infrared band to monitor nucleation and growth, we observe significant temperature dependence in the nucleation of ice on JSC Mars-1 regolith simulant, with critical saturation ratios, S (sub crit) , as high as 3.8 at 155 K. At temperatures below approximately 180 K, ice nucleation on JSC Mars-1 requires significant supersaturation, potentially impacting the Martian hydrological cycle. JF - Journal of Geophysical Research AU - Phebus, Bruce D AU - Johnson, Alexandria V AU - Mar, Brendan AU - Stone, Bradley M AU - Colaprete, Anthony AU - Iraci, Laura T Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E04009 PB - American Geophysical Union, Washington, DC VL - 116 IS - E4 SN - 0148-0227, 0148-0227 KW - hydrology KW - clouds KW - solar system KW - numerical analysis KW - surface water KW - atmosphere KW - Mars KW - terrestrial planets KW - planets KW - nucleation KW - ice KW - aerosols KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1676579082?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Water+ice+nucleation+characteristics+of+JSC+Mars-1+regolith+simulant+under+simulated+Martian+atmospheric+conditions&rft.au=Phebus%2C+Bruce+D%3BJohnson%2C+Alexandria+V%3BMar%2C+Brendan%3BStone%2C+Bradley+M%3BColaprete%2C+Anthony%3BIraci%2C+Laura+T&rft.aulast=Phebus&rft.aufirst=Bruce&rft.date=2011-01-01&rft.volume=116&rft.issue=E4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JE003699 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - Number of references - 46 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2015-04-30 N1 - SubjectsTermNotLitGenreText - aerosols; atmosphere; clouds; hydrology; ice; Mars; nucleation; numerical analysis; planets; regolith; solar system; surface water; terrestrial planets DO - http://dx.doi.org/10.1029/2010JE003699 ER - TY - JOUR T1 - Characterization of lunar swirls at Mare Ingenii; a model for space weathering at magnetic anomalies AN - 1676578628; 2015-036745 AB - Analysis of spectra from the Clementine ultraviolet-visible and near-infrared cameras of small, immature craters and surface soils both on and adjacent to the lunar swirls at Mare Ingenii has yielded the following conclusions about space weathering at a magnetic anomaly. (1) Despite having spectral characteristics of immaturity, the lunar swirls are not freshly exposed surfaces. (2) The swirl surfaces are regions of retarded weathering, while immediately adjacent regions experience accelerated weathering. (3) Weathering in the off-swirl regions darkens and flattens the spectrum with little to no reddening, which suggests that the production of larger (>40 nm) nanophase iron dominates in these locations as a result of charged particle sorting by the magnetic field. Preliminary analysis of two other lunar swirl regions, Reiner Gamma and Mare Marginis, is consistent with our observations at Mare Ingenii. Our results indicate that sputtering/vapor deposition, implanted solar wind hydrogen, and agglutination share responsibility for creating the range in npFe (super 0) particle sizes responsible for the spectral effects of space weathering. JF - Journal of Geophysical Research AU - Kramer, Georgiana Y AU - Combe, Jean-Philippe AU - Harnett, Erika M AU - Hawke, Bernard Ray AU - Noble, Sarah K AU - Blewett, David T AU - McCord, Thomas B AU - Giguere, Thomas A Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E04008 PB - American Geophysical Union, Washington, DC VL - 116 IS - E4 SN - 0148-0227, 0148-0227 KW - craters KW - Moon KW - lunar crust KW - solar wind KW - magnetic anomalies KW - Clementine Program KW - spectroscopy KW - maria KW - weathering KW - Mare Ingenii KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1676578628?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Characterization+of+lunar+swirls+at+Mare+Ingenii%3B+a+model+for+space+weathering+at+magnetic+anomalies&rft.au=Kramer%2C+Georgiana+Y%3BCombe%2C+Jean-Philippe%3BHarnett%2C+Erika+M%3BHawke%2C+Bernard+Ray%3BNoble%2C+Sarah+K%3BBlewett%2C+David+T%3BMcCord%2C+Thomas+B%3BGiguere%2C+Thomas+A&rft.aulast=Kramer&rft.aufirst=Georgiana&rft.date=2011-01-01&rft.volume=116&rft.issue=E4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JE003669 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - Number of references - 118 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2015-04-30 N1 - SubjectsTermNotLitGenreText - Clementine Program; craters; lunar crust; magnetic anomalies; Mare Ingenii; maria; Moon; remote sensing; solar wind; spectroscopy; weathering DO - http://dx.doi.org/10.1029/2010JE003669 ER - TY - JOUR T1 - Late Hesperian to early Amazonian midlatitude Martian valleys; evidence from Newton and Gorgonum basins AN - 1668232539; 2015-030343 AB - Numerous shallowly incised valleys extend from the upper interior rims of Newton and Gorgonum basins across smooth interior basin deposits. These valleys are a few meters to 300 m wide and may have experienced discharges over all or most of their width, implying that they are, in fact, incised channels. In Newton Crater these valleys extend up to 75 km, to near the center of the basin floor. In Gorgonum basin the valleys terminate at what we interpret to be a former ice-covered lake. These valleys appear to be examples of scattered, shallowly incised valleys found throughout the midlatitudes of Mars superimposed upon the widespread mantling deposits within the region. On the basis of crater count age dating, the interior valleys in Newton and Gorgonum basins were formed at about the Hesperian to Amazonian transition. The runoff through the valleys may have occurred due to episodic melting of snow and ice that had accumulated on the crater rims. Temperatures warm enough to cause extensive melting may have occurred during optimal orbital and obliquity configurations because of intensive volcanism releasing greenhouse gasses or as a result of a brief episode of warming from a large impact somewhere on Mars. The valleys were formed at about the same time as major outflow channels were active along the highlands-lowlands boundary. Water delivered to the northern lowlands by the outflow channels may have been recycled as snow and ice deposits within the Martian midlatitudes. The episodic melting of such deposits may have formed the midlatitude valleys. JF - Journal of Geophysical Research AU - Howard, Alan D AU - Moore, Jeffrey M Y1 - 2011 PY - 2011 DA - 2011 EP - Paper No. E05003 PB - American Geophysical Union, Washington, DC VL - 116 IS - E5 SN - 0148-0227, 0148-0227 KW - solar system KW - glaciation KW - valleys KW - erosion KW - Mars KW - Hesperian KW - weathering KW - terrestrial planets KW - planets KW - Gorgonum Basin KW - Amazonian KW - surface features KW - fluvial features KW - climate KW - Newton Basin KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1668232539?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Late+Hesperian+to+early+Amazonian+midlatitude+Martian+valleys%3B+evidence+from+Newton+and+Gorgonum+basins&rft.au=Howard%2C+Alan+D%3BMoore%2C+Jeffrey+M&rft.aulast=Howard&rft.aufirst=Alan&rft.date=2011-01-01&rft.volume=116&rft.issue=E5&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JE003782 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - Number of references - 34 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2015-04-02 N1 - SubjectsTermNotLitGenreText - Amazonian; climate; erosion; fluvial features; glaciation; Gorgonum Basin; Hesperian; Mars; Newton Basin; planets; solar system; surface features; terrestrial planets; valleys; weathering DO - http://dx.doi.org/10.1029/2010JE003782 ER - TY - JOUR T1 - High heat flow from Enceladus' south polar region measured using 10-600 cm (super -1) Cassini/CIRS data AN - 1668231545; 2015-030268 AB - Analysis of 2008 Cassini Composite Infrared Spectrometer (CIRS) 10 to 600 cm (super -1) thermal emission spectra of Encleadus shows that for reasonable assumptions about the spatial distribution of the emission and the thermophysical properties of the solar-heated background surface, which are supported by CIRS observations of background temperatures at the edge of the active region, the endogenic power of Enceladus' south polar terrain is 15.8 + or - 3.1 GW. This is significantly higher than the previous estimate of 5.8 + or - 1.9 GW. The new value represents an improvement over the previous one, which was derived from higher wave number data (600 to 1100 cm (super -1) ) and was thus only sensitive to high-temperature emission. The mechanism capable of producing such a high endogenic power remains a mystery and challenges the current models of proposed heat production. JF - Journal of Geophysical Research AU - Howett, C J A AU - Spencer, J R AU - Pearl, J AU - Segura, M Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E03003 PB - American Geophysical Union, Washington, DC VL - 116 IS - E3 SN - 0148-0227, 0148-0227 KW - albedo KW - icy satellites KW - polar regions KW - physical properties KW - infrared spectroscopy KW - Cassini-Huygens Mission KW - heat flow KW - surface features KW - Enceladus Satellite KW - satellites KW - spectroscopy KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1668231545?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=High+heat+flow+from+Enceladus%27+south+polar+region+measured+using+10-600+cm+%28super+-1%29+Cassini%2FCIRS+data&rft.au=Howett%2C+C+J+A%3BSpencer%2C+J+R%3BPearl%2C+J%3BSegura%2C+M&rft.aulast=Howett&rft.aufirst=C+J&rft.date=2011-01-01&rft.volume=116&rft.issue=E3&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JE003718 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - Number of references - 34 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2015-04-02 N1 - SubjectsTermNotLitGenreText - albedo; Cassini-Huygens Mission; Enceladus Satellite; heat flow; icy satellites; infrared spectroscopy; physical properties; polar regions; remote sensing; satellites; spectroscopy; surface features DO - http://dx.doi.org/10.1029/2010JE003718 ER - TY - JOUR T1 - Global dust model intercomparison in AeroCom phase I AN - 1641012956; 2015-000431 AB - This study presents the results of a broad intercomparison of a total of 15 global aerosol models within the AeroCom project. Each model is compared to observations related to desert dust aerosols, their direct radiative effect, and their impact on the biogeochemical cycle, i.e., aerosol optical depth (AOD) and dust deposition. Additional comparisons to Angstroem exponent (AE), coarse mode AOD and dust surface concentrations are included to extend the assessment of model performance and to identify common biases present in models. These data comprise a benchmark dataset that is proposed for model inspection and future dust model development. There are large differences among the global models that simulate the dust cycle and its impact on climate. In general, models simulate the climatology of vertically integrated parameters (AOD and AE) within a factor of two whereas the total deposition and surface concentration are reproduced within a factor of 10. In addition, smaller mean normalized bias and root mean square errors are obtained for the climatology of AOD and AE than for total deposition and surface concentration. Characteristics of the datasets used and their uncertainties may influence these differences. Large uncertainties still exist with respect to the deposition fluxes in the southern oceans. Further measurements and model studies are necessary to assess the general model performance to reproduce dust deposition in ocean regions sensible to iron contributions. Models overestimate the wet deposition in regions dominated by dry deposition. They generally simulate more realistic surface concentration at stations downwind of the main sources than at remote ones. Most models simulate the gradient in AOD and AE between the different dusty regions. However the seasonality and magnitude of both variables is better simulated at African stations than Middle East ones. The models simulate the offshore transport of West Africa throughout the year but they overestimate the AOD and they transport too fine particles. The models also reproduce the dust transport across the Atlantic in the summer in terms of both AOD and AE but not so well in winter-spring nor the southward displacement of the dust cloud that is responsible of the dust transport into South America. Based on the dependency of AOD on aerosol burden and size distribution we use model bias with respect to AOD and AE to infer the bias of the dust emissions in Africa and the Middle East. According to this analysis we suggest that a range of possible emissions for North Africa is 400 to 2200 Tg yr (super -1) and in the Middle East 26 to 526 Tg yr (super -1) . JF - Atmospheric Chemistry and Physics AU - Huneeus, Nicolas AU - Schulz, Michael AU - Balkanski, Y AU - Griesfeller, J AU - Prospero, J AU - Kinne, S AU - Bauer, S AU - Boucher, O AU - Chin, Mian AU - Dentener, Frank AU - Diehl, T AU - Easter, R AU - Fillmore, D AU - Ghan, S AU - Ginoux, P AU - Grini, A AU - Horowitz, Larry AU - Koch, Dorothy AU - Krol, M C AU - Landing, W AU - Liu, Xiaohong AU - Mahowald, N AU - Miller, R AU - Morcrette, J J AU - Myhre, G AU - Penner, J AU - Perlwitz, J AU - Stier, P AU - Takemura, Toshihiko AU - Zender, C S Y1 - 2011 PY - 2011 DA - 2011 SP - 7781 EP - 7816 PB - Copernicus, Katlenburg-Lindau VL - 11 IS - 15 SN - 1680-7316, 1680-7316 KW - Southern Ocean KW - iron KW - carbon dioxide KW - spatial distribution KW - transport KW - sediments KW - climate effects KW - porphyrins KW - concentration KW - numerical models KW - clastic sediments KW - pigments KW - biochemistry KW - global KW - chlorophyll KW - nutrients KW - models KW - organic compounds KW - deposition KW - atmospheric transport KW - metals KW - dust KW - solar radiation KW - aerosols KW - seasonal variations KW - wind transport KW - optical depth KW - Atlantic Ocean KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1641012956?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Chemistry+and+Physics&rft.atitle=Global+dust+model+intercomparison+in+AeroCom+phase+I&rft.au=Huneeus%2C+Nicolas%3BSchulz%2C+Michael%3BBalkanski%2C+Y%3BGriesfeller%2C+J%3BProspero%2C+J%3BKinne%2C+S%3BBauer%2C+S%3BBoucher%2C+O%3BChin%2C+Mian%3BDentener%2C+Frank%3BDiehl%2C+T%3BEaster%2C+R%3BFillmore%2C+D%3BGhan%2C+S%3BGinoux%2C+P%3BGrini%2C+A%3BHorowitz%2C+Larry%3BKoch%2C+Dorothy%3BKrol%2C+M+C%3BLanding%2C+W%3BLiu%2C+Xiaohong%3BMahowald%2C+N%3BMiller%2C+R%3BMorcrette%2C+J+J%3BMyhre%2C+G%3BPenner%2C+J%3BPerlwitz%2C+J%3BStier%2C+P%3BTakemura%2C+Toshihiko%3BZender%2C+C+S&rft.aulast=Huneeus&rft.aufirst=Nicolas&rft.date=2011-01-01&rft.volume=11&rft.issue=15&rft.spage=7781&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics&rft.issn=16807316&rft_id=info:doi/ L2 - http://www.atmos-chem-phys.net/11/7781/2011/acp-11-7781-2011.pdf http://www.atmospheric-chemistry-and-physics.net/home.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Date revised - 2015-01-01 N1 - Number of references - 99 N1 - Document feature - illus. incl. 5 tables, sketch maps N1 - SuppNotes - Includes supplement, http://www.atmos-chem-phys.net/11/7781/2011/acp-11-7781-2011-supplement. pdf; published in Atmospheric Chemistry and Physics Discussion: 12 October 2010, http://www.atmos-chem-phys-discuss.net/10/23781/2010/acpd-10-23781-2010. html; accessed in Dec. 2012 N1 - Last updated - 2014-12-31 N1 - SubjectsTermNotLitGenreText - aerosols; Atlantic Ocean; atmospheric transport; biochemistry; carbon dioxide; chlorophyll; clastic sediments; climate effects; concentration; deposition; dust; global; iron; metals; models; numerical models; nutrients; optical depth; organic compounds; pigments; porphyrins; seasonal variations; sediments; solar radiation; Southern Ocean; spatial distribution; transport; wind transport ER - TY - JOUR T1 - Mapping oil-water emulsions from the Deepwater Horizon oil spill AN - 1618132817; 2014-084727 JF - Scientific Investigations Report AU - Swayze, G A AU - Clark, R N AU - Leifer, Ira AU - Livo, K Eric AU - Kokaly, Raymond AU - Hoefen, Todd AU - Lundeen, Sarah AU - Eastwood, Michael AU - Green, Robert O AU - Pearson, Neil AU - Sarture, Charles AU - McCubbin, Ian AU - Roberts, Dar AU - Bradley, Eliza AU - Steele, Denis AU - Ryan, Thomas AU - Dominquez, Roseanne Y1 - 2011 PY - 2011 DA - 2011 SP - 24 EP - 25 PB - U. S. Geological Survey, Reston, VA SN - 2328-031X, 2328-031X KW - United States KW - North America KW - concentration KW - imagery KW - Mississippi Delta KW - pollution KW - mapping KW - Gulf Coastal Plain KW - Deepwater Horizon oil spill KW - Gulf of Mexico KW - measurement KW - AVIRIS KW - transport KW - oil spills KW - North Atlantic KW - USGS KW - Atlantic Ocean KW - remote sensing KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1618132817?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Scientific+Investigations+Report&rft.atitle=Mapping+oil-water+emulsions+from+the+Deepwater+Horizon+oil+spill&rft.au=Swayze%2C+G+A%3BClark%2C+R+N%3BLeifer%2C+Ira%3BLivo%2C+K+Eric%3BKokaly%2C+Raymond%3BHoefen%2C+Todd%3BLundeen%2C+Sarah%3BEastwood%2C+Michael%3BGreen%2C+Robert+O%3BPearson%2C+Neil%3BSarture%2C+Charles%3BMcCubbin%2C+Ian%3BRoberts%2C+Dar%3BBradley%2C+Eliza%3BSteele%2C+Denis%3BRyan%2C+Thomas%3BDominquez%2C+Roseanne&rft.aulast=Swayze&rft.aufirst=G&rft.date=2011-01-01&rft.volume=&rft.issue=&rft.spage=24&rft.isbn=&rft.btitle=&rft.title=Scientific+Investigations+Report&rft.issn=2328031X&rft_id=info:doi/10.3133%2Fsir20115053 L2 - http://www.usgs.pubs LA - English DB - GeoRef N1 - Conference title - U. S. Geological Survey eighth biennial geographic information science workshop and first The National Map users conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - PubXState - VA N1 - Last updated - 2014-10-30 N1 - SubjectsTermNotLitGenreText - Atlantic Ocean; AVIRIS; concentration; Deepwater Horizon oil spill; Gulf Coastal Plain; Gulf of Mexico; imagery; mapping; measurement; Mississippi Delta; North America; North Atlantic; oil spills; pollution; remote sensing; transport; United States; USGS DO - http://dx.doi.org/10.3133/sir20115053 ER - TY - JOUR T1 - Earth's early atmospheric density revealed from Archaean raindrop imprints AN - 1566815788; 2014-077085 AB - The Archaean atmosphere has been investigated dominantly by numerical models that typically assume a total atmospheric pressure of approximately 1 atm [1-3]. However, barometric pressure may have been different, owing to the negligible presence of oxygen in the atmosphere [4], and the resulting difference in the redox-sensitive cycling of the other major gas, nitrogen. We have developed a new method that uses lithified raindrop imprints as a proxy for atmospheric density. We consider the physics that determine the morphology of raindrop imprints preserved in tuff of the approximately 2.7 billion year old Ventersdorp Supergroup of South Africa [5]. Volume and surface area of raindrop imprints are a function of raindrop size and terminal velocity, the latter being dependent upon air density, whereas maximum raindrop size is not. We experimentally determine the relationship between imprint volume and surface area as a function of raindrop size in wet ash (10% moisture by weight) from the 2010 Eyjafjallajokull event (Iceland) and Pahala (Hawaii), as modern analogs to the Ventersdorp tuff. We are then able to place an upper bound on the late Archaean atmospheric density, which has previously had no such observational constraint. JF - Mineralogical Magazine AU - Som, Sanjoy M AU - Catling, David C AU - Buick, Roger AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1907 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - United States KW - volcanic rocks KW - density KW - igneous rocks KW - Europe KW - Pahala KW - raindrops KW - Archean KW - tuff KW - South Africa KW - Western Europe KW - Precambrian KW - numerical models KW - paleoatmosphere KW - Hawaii KW - East Pacific Ocean Islands KW - pyroclastics KW - Ventersdorp Supergroup KW - Southern Africa KW - Oceania KW - Eyjafjallajokul KW - atmospheric pressure KW - Africa KW - Polynesia KW - Iceland KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1566815788?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Earth%27s+early+atmospheric+density+revealed+from+Archaean+raindrop+imprints&rft.au=Som%2C+Sanjoy+M%3BCatling%2C+David+C%3BBuick%2C+Roger%3BAnonymous&rft.aulast=Som&rft.aufirst=Sanjoy&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1907&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1772.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2011 N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2014-01-01 N1 - Number of references - 5 N1 - Last updated - 2014-10-02 N1 - SubjectsTermNotLitGenreText - Africa; Archean; atmospheric pressure; density; East Pacific Ocean Islands; Europe; Eyjafjallajokul; Hawaii; Iceland; igneous rocks; numerical models; Oceania; Pahala; paleoatmosphere; Polynesia; Precambrian; pyroclastics; raindrops; South Africa; Southern Africa; tuff; United States; Ventersdorp Supergroup; volcanic rocks; Western Europe ER - TY - JOUR T1 - Ca isotopes of Central American arc basalts lack carbonate component AN - 1566815380; 2014-077029 AB - Subduction of sediment fundamentally represents a loss of continental crust and a gain of relatively enriched components to the mantle. Provided that possible mixing end members can be defined, stable Ca isotope signatures provide a powerful probe for identifying various sources in volcanic arc magmas. For example, marine carbonates are enriched in light Ca isotopes by about -0.2 to > -1.0ppm , relative to igneous rocks and should clearly implicate subducted sediment. Here we present Ca isotopic compositions for basalts from along the active Central American volcanic arc front that represent the range of trace element signatures indicative of various amounts of sediment recycling through the subduction zone (e.g. based on Ba/La values). In an attempt to balance sedimentary input and arc volcanic output across the Nicaraguan margin compared sediment input (i.e. high Ba/La) in arc magmas to offshore sedimentary drill cores, concluding that over the last approximately 20 Ma as much as 75% of the modern sedimentary column has been subducted. Despite measuring samples with trace element signatures that imply large amounts of subducted carbonate, we find no resolveable evidence for a low (super 44) Ca/ (super 40) Ca component. In detail, arc basalts from Guatemala, Honduras, and Nicaragua range from 0.04 to -0.18ppm in (super 44) Ca/ (super 40) Ca (mantle=0 scale). These nearly indistiguishable results are somewhat surprising given the fact that CaCO (sub 3) has > or =4 times more Ca than the basalts. Mass balance shows that approximately 2-10% carbonate should produce resolvable effects. Several potential reasons for the missing Ca isotopic signal are considered, including that: (1) subducted carbonate has an isotopic composition similar to mantle Ca, cf. [1], (2) subducted carbonate is largely dolomite, and/or (3) the record found in the drill cores is not representative of subducted sediment in the modern arc. Our new Ca isotope data imply that, at least for the Nicaraguan volcanic arc, trace element geochemistry may be less well understood than we believe. This is supported by the fact that the highest delta (super 18) O values are associated with low Ba/La , and not the high Ba/La values typically correlated with increasing fluids from the slab. JF - Mineralogical Magazine AU - Simon, J I AU - Brown, S T AU - Depaolo, D J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1879 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - calcium KW - volcanic rocks KW - subduction zones KW - oxygen KW - isotopes KW - igneous rocks KW - mantle KW - continental crust KW - Nicaragua KW - stable isotopes KW - dolomite KW - lanthanum KW - barium KW - basalts KW - rare earths KW - alkaline earth metals KW - isotope ratios KW - subduction KW - O-18/O-16 KW - Ca-44/Ca-40 KW - plate tectonics KW - metals KW - magmas KW - slabs KW - Central America KW - carbonates KW - crust KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1566815380?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Ca+isotopes+of+Central+American+arc+basalts+lack+carbonate+component&rft.au=Simon%2C+J+I%3BBrown%2C+S+T%3BDepaolo%2C+D+J%3BAnonymous&rft.aulast=Simon&rft.aufirst=J&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1879&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1772.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2011 N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2014-01-01 N1 - Number of references - 3 N1 - Last updated - 2014-10-02 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; barium; basalts; Ca-44/Ca-40; calcium; carbonates; Central America; continental crust; crust; dolomite; igneous rocks; isotope ratios; isotopes; lanthanum; magmas; mantle; metals; Nicaragua; O-18/O-16; oxygen; plate tectonics; rare earths; slabs; stable isotopes; subduction; subduction zones; volcanic rocks ER - TY - JOUR T1 - Sensitivity of seawater oxygen isotopes to climatic and tectonic boundary conditions in an early Paleogene simulation with GISS ModelE-R AN - 1535204195; 2014-039626 AB - An isotope-enabled ocean-atmosphere general circulation model (GISS ModelE-R) is used to estimate the spatial gradients of the oxygen isotopic composition of seawater (delta (super 18) O (sub sw) , where delta is the deviation from a known reference material in per mil) during the early Paleogene (45-65 Ma). Understanding the response of delta (super 18) O (sub sw) to changes in climatic and tectonic boundary conditions is important because records of carbonate delta (super 18) O document changes in hydrology, as well as changes in temperature and global ice-volume. We present results from an early Paleogene configuration of ModelE-R which indicate that spatial gradients of surface ocean delta (super 18) O (sub sw) during this period could have been significantly different to those in the modern ocean. The differences inferred from ModelE-R are sufficient to change early Paleogene sea surface temperature estimates derived from primary carbonate delta (super 18) O signatures by more than + or -2 degrees C in large areas of the ocean. In the North Atlantic, Indian, and Southern Oceans, the differences in delta (super 18) O (sub sw) inferred from our simulation with ModelE-R are in direct contrast with those from another delta (super 18) O-tracing model study which used different, but equally plausible, early Paleogene boundary conditions. The large differences in delta (super 18) O (sub sw) between preindustrial and early Paleogene simulations, and between models, emphasizes the sensitivity of delta (super 18) O (sub sw) to climatic and tectonic boundary conditions. For this reason, absolute estimates of Eocene/Paleocene temperature derived from carbonate delta (super 18) O alone are likely to have larger uncertainties than are usually assumed. JF - Paleoceanography AU - Roberts, Christopher D AU - LeGrande, Allegra N AU - Tripati, Aradhna K Y1 - 2011 PY - 2011 DA - 2011 EP - Citation PA4203 PB - American Geophysical Union, Washington, DC VL - 26 IS - 4 SN - 0883-8305, 0883-8305 KW - sea water KW - oxygen KW - isotopes KW - paleo-oceanography KW - simulation KW - paleoclimatology KW - stable isotopes KW - climate change KW - Cenozoic KW - tectonics KW - climate forcing KW - geochemistry KW - uncertainty KW - climate KW - general circulation models KW - ocean circulation KW - sea surface water KW - isotope ratios KW - Paleogene KW - O-18/O-16 KW - water balance KW - hydrochemistry KW - boundary conditions KW - models KW - Tertiary KW - GISS ModelE-R KW - sea-surface temperature KW - carbonates KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535204195?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Paleoceanography&rft.atitle=Sensitivity+of+seawater+oxygen+isotopes+to+climatic+and+tectonic+boundary+conditions+in+an+early+Paleogene+simulation+with+GISS+ModelE-R&rft.au=Roberts%2C+Christopher+D%3BLeGrande%2C+Allegra+N%3BTripati%2C+Aradhna+K&rft.aulast=Roberts&rft.aufirst=Christopher&rft.date=2011-01-01&rft.volume=26&rft.issue=4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Paleoceanography&rft.issn=08838305&rft_id=info:doi/10.1029%2F2010PA002025 L2 - http://www.agu.org/journals/pa/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - Number of references - 112 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-06-13 N1 - CODEN - POCGEP N1 - SubjectsTermNotLitGenreText - boundary conditions; carbonates; Cenozoic; climate; climate change; climate forcing; general circulation models; geochemistry; GISS ModelE-R; hydrochemistry; isotope ratios; isotopes; models; O-18/O-16; ocean circulation; oxygen; paleo-oceanography; paleoclimatology; Paleogene; sea surface water; sea water; sea-surface temperature; simulation; stable isotopes; tectonics; Tertiary; uncertainty; water balance DO - http://dx.doi.org/10.1029/2010PA002025 ER - TY - JOUR T1 - Phenomenology of soil erosion due to rocket exhaust on the Moon and the Mauna Kea lunar test site AN - 1510394171; 2014-018983 AB - The soil-blowing phenomena observed in the Apollo lunar missions have not previously been described in the literature in sufficient detail to elucidate the physical processes and to support the development of physics-based modeling of the plume effects. In part, this is because previous laboratory experiments have used overly simplistic model soils that fail to produce many of the phenomena seen in lunar landings, some of which therefore went unrecognized. Here, the Apollo descent videos, terrain photography, and ascent videos are interpreted with the assistance of field experiments using a more complex regolith. Rocket thruster firings were performed upon the tephra of a lunar test site on Mauna Kea in Hawaii. This tephra possesses embedded rocks, large fractions of gravel and dust, some cohesion, and natural geological lamination. This produced more realistic plume phenomenology. The relevant phenomena include the relationship of dust liberation with overall soil erosion rate, terrain bed forms created by the plume, dust tails associated with the exhumation and blowing of rocks, bed load transport, the removal of discrete layers of soil hypothesized to be the stratigraphic units corresponding to impact events, the total mass of ejected soil during a landing, and the brightening of the regolith around the landing site. This analysis provides insight into the erosion processes and nature of the regolith. This paper also synthesizes theory, experiment, simulation, and observational data to produce a clearer picture of the physical processes of lunar soil erosion. JF - Journal of Geophysical Research AU - Metzger, Philip T AU - Smith, Jacob AU - Lane, John E Y1 - 2011 PY - 2011 DA - 2011 EP - Citation E06005 PB - American Geophysical Union, Washington, DC VL - 116 IS - E6 SN - 0148-0227, 0148-0227 KW - United States KW - soils KW - experimental studies KW - Hawaii Island KW - Moon KW - Hawaii County Hawaii KW - erosion KW - Mauna Kea KW - Hawaii KW - rockets KW - East Pacific Ocean Islands KW - Apollo Program KW - landing sites KW - spacecraft KW - Oceania KW - Polynesia KW - soil erosion KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1510394171?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Phenomenology+of+soil+erosion+due+to+rocket+exhaust+on+the+Moon+and+the+Mauna+Kea+lunar+test+site&rft.au=Metzger%2C+Philip+T%3BSmith%2C+Jacob%3BLane%2C+John+E&rft.aulast=Metzger&rft.aufirst=Philip&rft.date=2011-01-01&rft.volume=116&rft.issue=E6&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JE003745 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - Number of references - 66 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-03-27 N1 - SubjectsTermNotLitGenreText - Apollo Program; East Pacific Ocean Islands; erosion; experimental studies; Hawaii; Hawaii County Hawaii; Hawaii Island; landing sites; Mauna Kea; Moon; Oceania; Polynesia; rockets; soil erosion; soils; spacecraft; United States DO - http://dx.doi.org/10.1029/2010JE003745 ER - TY - JOUR T1 - Asian dust weather categorization with satellite and surface observations AN - 1469625043; 2013-096870 JF - International Journal of Remote Sensing AU - Lin, Tang-Huang AU - Hsu, N Christina AU - Tsay, Si-Chee AU - Huang, Shih-Jen Y1 - 2011 PY - 2011 DA - 2011 SP - 153 EP - 170 PB - Taylor & Francis, London VL - 32 IS - 1 SN - 0143-1161, 0143-1161 KW - dust storms KW - Far East KW - clastic sediments KW - satellite methods KW - Central Asia KW - optical properties KW - dust KW - classification KW - sediments KW - aerosols KW - optical depth KW - Asia KW - meteorology KW - China KW - remote sensing KW - MODIS KW - 06A:Sedimentary petrology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1469625043?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Remote+Sensing&rft.atitle=Asian+dust+weather+categorization+with+satellite+and+surface+observations&rft.au=Lin%2C+Tang-Huang%3BHsu%2C+N+Christina%3BTsay%2C+Si-Chee%3BHuang%2C+Shih-Jen&rft.aulast=Lin&rft.aufirst=Tang-Huang&rft.date=2011-01-01&rft.volume=32&rft.issue=1&rft.spage=153&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Remote+Sensing&rft.issn=01431161&rft_id=info:doi/10.1080%2F01431160903439932 L2 - http://www.tandf.co.uk/journals/titles/01431161.asp LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2013-01-01 N1 - Document feature - illus. N1 - SuppNotes - Based on Publisher-supplied data N1 - Last updated - 2013-12-20 N1 - SubjectsTermNotLitGenreText - aerosols; Asia; Central Asia; China; classification; clastic sediments; dust; dust storms; Far East; meteorology; MODIS; optical depth; optical properties; remote sensing; satellite methods; sediments DO - http://dx.doi.org/10.1080/01431160903439932 ER - TY - JOUR T1 - The effects of spatial representation on memory for verbal navigation instructions AN - 1449083474; 201316953 AB - Three experiments investigated effects of mental spatial representation on memory for verbal navigation instructions. The navigation instructions referred to a grid of stacked matrices displayed on a computer screen or on paper, with or without depth cues, and presented as two-dimensional diagrams or a three-dimensional physical model. Experimental instructions either did or did not promote a three-dimensional mental representation of the space. Subjects heard navigation instructions, immediately repeated them, and then followed them manually on the grid. In all display and experimental instruction conditions, memory for the navigation instructions was reduced when the task required mentally representing a three-dimensional space, with movements across multiple matrices, as compared with a two-dimensional space, with movements within a single matrix, even though the words in the navigation instructions were identical in all cases. The findings demonstrate that the mental representation of the space influences immediate verbatim memory for navigation instructions. Adapted from the source document JF - Memory & Cognition AU - Barshi, Immanuel AU - Healy, Alice F AD - Human System Integration Division of the National Aeronautics and Space Administration Ames Research Center, CA, USA Immanuel.Barshi@nasa.gov Y1 - 2011/01// PY - 2011 DA - January 2011 SP - 47 EP - 62 VL - 39 IS - 1 SN - 0090-502X, 0090-502X KW - Communication (13600) KW - Mental Representation (52945) KW - Memory (52750) KW - Space (81600) KW - Cues/Cueing (16330) KW - article KW - 4016: psycholinguistics; verbal learning: paired associate, serial learning, memory, recognition UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1449083474?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Allba&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Memory+%26+Cognition&rft.atitle=The+effects+of+spatial+representation+on+memory+for+verbal+navigation+instructions&rft.au=Barshi%2C+Immanuel%3BHealy%2C+Alice+F&rft.aulast=Barshi&rft.aufirst=Immanuel&rft.date=2011-01-01&rft.volume=39&rft.issue=1&rft.spage=47&rft.isbn=&rft.btitle=&rft.title=Memory+%26+Cognition&rft.issn=0090502X&rft_id=info:doi/ LA - English DB - Linguistics and Language Behavior Abstracts (LLBA) N1 - Date revised - 2013-11-01 N1 - Last updated - 2016-09-27 N1 - CODEN - MYCGAO N1 - SubjectsTermNotLitGenreText - Space (81600); Memory (52750); Mental Representation (52945); Cues/Cueing (16330); Communication (13600) ER - TY - JOUR T1 - Temporal trend in anthropogenic sulfur aerosol transport from Central and Eastern Europe to Israel AN - 1447102463; 2013-082699 AB - Decrease of sulfur emissions in central and eastern Europe over the past 3 decades is well documented. These changes result in a decreasing trend of sulfate aerosol and aerosol forcing over the source region, but also at a receptor site located in southern Israel, thousands of kilometers downwind. A combination of several independent observations, namely, satellite and ground-based remote sensing, in situ aerosol sampling, and backward trajectory analysis, was implemented to show significant downward trends in fine particle aerosol optical thickness (AOT), in general, and sulfur aerosol, in particular. MODIS-Terra observations over central Europe show 38% reduction of fine AOT. At the reception site in southern Israel, 43% reduction of fine AOT was observed by a sunphotometer and 25% reduction of sampled fine aerosols was obtained. During the corresponding observation periods, the coarse mode AOT has remained constant. The majority of the backward trajectories, where meaningful sulfur events were observed at the receptor site, are originated from eastern and central Europe. The aerosol radiative effect at top of the atmosphere has become less negative during the past decade, decreasing by 30% in Europe and 67% in Israel. JF - Mineralogical Magazine AU - Karnieli, A AU - Yevgeny, D AU - Indoitu, R AU - Panov, N AU - Levy, R C AU - Remer, L A AU - Maenhaut, W AU - Holben, B N AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1152 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - pollutants KW - human activity KW - pollution KW - Europe KW - Israel KW - satellite methods KW - Central Europe KW - sulfur KW - aerosols KW - chemical composition KW - Asia KW - Middle East KW - remote sensing KW - MODIS KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1447102463?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Temporal+trend+in+anthropogenic+sulfur+aerosol+transport+from+Central+and+Eastern+Europe+to+Israel&rft.au=Karnieli%2C+A%3BYevgeny%2C+D%3BIndoitu%2C+R%3BPanov%2C+N%3BLevy%2C+R+C%3BRemer%2C+L+A%3BMaenhaut%2C+W%3BHolben%2C+B+N%3BAnonymous&rft.aulast=Karnieli&rft.aufirst=A&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1152&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1133.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2013-01-01 N1 - Last updated - 2013-10-31 N1 - CODEN - MNLMBB N1 - SubjectsTermNotLitGenreText - aerosols; Asia; Central Europe; chemical composition; Europe; human activity; Israel; Middle East; MODIS; pollutants; pollution; remote sensing; satellite methods; sulfur ER - TY - JOUR T1 - Multi-decadal change of atmospheric aerosols and their effect on surface radiation AN - 1447101092; 2013-082575 AB - We present an investigation on multi-decadal changes of atmospheric aerosols and their effects on surface radiation using a global chemistry transport model along with the near-term to long-term data records. We focus on a 28-year time period of satellite era from 1980 to 2007, during which a suite of aerosol data from satellite observations, ground-based measurements, and intensive field experiments have become available. We analyze the long-term global and regional aerosol trends and their relationship to the changes of aerosol and precursor emissions and assess the role aerosols play in the multi-decadal change of solar radiation reaching the surface (known as "dimming" or "brightening") at different regions of the world, including the major anthropogenic source regions (North America, Europe, Asia) that have been experiencing considerable changes of emissions, dust and biomass burning regions that have large interannual variabilities, downwind regions that are directly affected by the changes in the source area, and remote regions that are considered to representing "background" conditions. JF - Mineralogical Magazine AU - Chin, Mian AU - Diehl, Thomas AU - Streets, David AU - Wild, Martin AU - Qian, Yun AU - Yu, Hongbin AU - Tan, Qian AU - Bian, Huisheng AU - Wang, Weiguo AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 666 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - decadal variations KW - clastic sediments KW - atmosphere KW - climate change KW - models KW - fires KW - dust KW - sediments KW - aerosols KW - seasonal variations KW - chemical composition KW - geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1447101092?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Multi-decadal+change+of+atmospheric+aerosols+and+their+effect+on+surface+radiation&rft.au=Chin%2C+Mian%3BDiehl%2C+Thomas%3BStreets%2C+David%3BWild%2C+Martin%3BQian%2C+Yun%3BYu%2C+Hongbin%3BTan%2C+Qian%3BBian%2C+Huisheng%3BWang%2C+Weiguo%3BAnonymous&rft.aulast=Chin&rft.aufirst=Mian&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=666&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/609.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2013-01-01 N1 - Last updated - 2013-10-31 N1 - CODEN - MNLMBB N1 - SubjectsTermNotLitGenreText - aerosols; atmosphere; chemical composition; clastic sediments; climate change; decadal variations; dust; fires; geochemistry; models; seasonal variations; sediments ER - TY - JOUR T1 - Aerosol spatial scales in observations and models; implications for the aerosol direct effect AN - 1447100628; 2013-082617 AB - Consideration of variability in aerosol spatial and temporal distributions are prime concerns in developing sampling strategies for future satellite missions. Previous studies suggest homogeneity in tropospheric aerosol spatial distributions at scales of about 200 km. These studies, however, did not have access to the extensive global data sets of aerosols from the past decade of EOS observations, and so their conclusions on aerosol spatial scales must be viewed as tentative. In the first part of this study we evaluate what the global distribution of aerosol optical depth looks for different spatial sampling strategies. We sample MODIS observations at their native swath width, along a satellite-subpoint track like what the APS would have observed, and at an intermediate swath width similar to what MISR observes. We investigate the convergence of the aerosol optical depth statistics for all cases. In the second part of this study we employ these sampling strategies on the results of the NASA GEOS-5 global aerosol model to investigate the implications for computed aerosol direct radiative forcing. JF - Mineralogical Magazine AU - Colarco, Peter R AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 687 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - optical properties KW - atmosphere KW - aerosols KW - satellite methods KW - remote sensing KW - MODIS KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1447100628?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Aerosol+spatial+scales+in+observations+and+models%3B+implications+for+the+aerosol+direct+effect&rft.au=Colarco%2C+Peter+R%3BAnonymous&rft.aulast=Colarco&rft.aufirst=Peter&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=687&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/609.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2013-01-01 N1 - Last updated - 2013-10-31 N1 - CODEN - MNLMBB N1 - SubjectsTermNotLitGenreText - aerosols; atmosphere; MODIS; optical properties; remote sensing; satellite methods ER - TY - JOUR T1 - Howardite noble gases as indicators of asteroid surface processing AN - 1442372580; 2013-078531 AB - Introduction and Research Objective: The HED (Howardite, Eucrite and Diogenite) group meteorites likely originate from the Asteroid 4 Vesta -- one of two asteroid targets of NASA's Dawn mission. Whilst Howardites are polymict breccias of eucritic and diogenitic material that often contain "regolithic" petrological features, neither their exact regolithic nature nor their formation processes are well defined. As the Solar Wind (SW) noble gas component is implanted onto surfaces of solar system bodies, noble gas analyses of Howardites provides a key indicator of regolithic origin. In addition to SW, previous work suggested that restricted Ni (300-1200 mu g/g) and Al (sub 2) O (sub 3) (8-9 wt%) contents may indicate an ancient well-mixed regolith. Our research combines petrological, compositional and noble gas analyses to help improve understanding of asteroid regolith formation processes, which will play an intergral part in the interpretation of Dawn mission data. Following compositional and petrological analyses, we developed a regolith grading scheme for our sample set of 30 Howardites and polymict Eucrites. In order to test the regolith indicators suggested our 8 selected samples exhibited a range of Ni, Al (sub 2) O (sub 3) contents and regolithic grades. Noble gas analyses were performed using furnace step-heating on our MAP 215-50 noble gas mass spectrometer. Of our 8 howardites, only 3 showed evidence of SW noble gases (e.g approaching (super 20) Ne/ (super 22) Ne approximately 13.75, (super 21) Ne/ (super 22) Ne approximately 0.033. As these samples display low regolithic grades and a range of Ni and Al (sub 2) O (sub 3) contents, so far we are unable to find any correlation between these indicators and "regolithic" origin. These results have a number of implications for both Howardite and Vesta formation, and may suggest complex surface stratigraphies and surface-gardening processes. JF - Mineralogical Magazine AU - Cartwright, Julia A AU - Mittlefehldt, David W AU - Herrin, J S AU - Ott, U AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 628 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - breccia KW - stony meteorites KW - asteroids KW - Vesta Asteroid KW - HED meteorites KW - diogenite KW - achondrites KW - meteorites KW - howardite KW - noble gases KW - eucrite KW - chemical composition KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1442372580?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Howardite+noble+gases+as+indicators+of+asteroid+surface+processing&rft.au=Cartwright%2C+Julia+A%3BMittlefehldt%2C+David+W%3BHerrin%2C+J+S%3BOtt%2C+U%3BAnonymous&rft.aulast=Cartwright&rft.aufirst=Julia&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=628&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/609.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2013-01-01 N1 - Last updated - 2013-10-17 N1 - CODEN - MNLMBB N1 - SubjectsTermNotLitGenreText - achondrites; asteroids; breccia; chemical composition; diogenite; eucrite; HED meteorites; howardite; meteorites; noble gases; stony meteorites; Vesta Asteroid ER - TY - JOUR T1 - Effects of absorbing aerosols on accelerated melting of snowpack in the Tibetan-Himalayas region AN - 1434007307; 2013-073004 AB - The impacts of absorbing aerosol on melting of snowpack in the Hindu-Kush-Tibetan-Himalayas (HKTH) region are studied using NASA satellite and GEOS-5 GCM. Results from GCM experiments shows that a 8-10% in the rate of melting of snowpack over the western Himalayas and Tibetan Plateau can be attributed to the aerosol elevated-heat-pump (EHP) feedback effect (Lau et al. 2008), initiated by the absorption of solar radiation by absorbing aerosols accumulated over the Indo-Gangetic Plain and Himalayas foothills. On the other hand, deposition of black carbon on snow surface was estimated to give rise to a reduction in snow surface albedo of 2-5%, and an increased annual runoff of 9-24%. From case studies using satellite observations and re-analysis data, we find consistent signals of possible impacts of dust and black carbon aerosol in blackening snow surface, in accelerating spring melting of snowpack in the HKHT, and consequentially in influencing shifts in long-term Asian summer monsoon rainfall pattern. JF - Mineralogical Magazine AU - Lau, William K M AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1274 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - Far East KW - snow cover KW - snowmelt KW - Hindu Kush KW - satellite methods KW - absorption KW - snowpack KW - melting KW - Xizang China KW - Tibetan Plateau KW - snow KW - solar radiation KW - Himalayas KW - aerosols KW - Asia KW - meteorology KW - China KW - remote sensing KW - meltwater KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1434007307?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Effects+of+absorbing+aerosols+on+accelerated+melting+of+snowpack+in+the+Tibetan-Himalayas+region&rft.au=Lau%2C+William+K+M%3BAnonymous&rft.aulast=Lau&rft.aufirst=William+K&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1274&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1261.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2013-01-01 N1 - Last updated - 2013-09-20 N1 - SubjectsTermNotLitGenreText - absorption; aerosols; Asia; China; Far East; Himalayas; Hindu Kush; melting; meltwater; meteorology; remote sensing; satellite methods; snow; snow cover; snowmelt; snowpack; solar radiation; Tibetan Plateau; Xizang China ER - TY - JOUR T1 - Estimating ground level PM (super 2.5) concentrations in Atlanta metro area using spatial statistical models AN - 1434005638; 2013-071320 AB - Studies have shown that exposure to PM (sub 2.5) (airborne particles less than 2.5 mu m in size) may increase the risk of cardiovascular and respiratory diseases. Current PM (sub 2.5) health effects studies rely on the often sparse ground monitoring networks to provide exposure estimates. We developed a geographically weighted regression (GWR) model to examine the relationship among PM (sub 2.5) , MODIS AOD, meteorological parameters, and land use information. Additionally, Two meteorological datasets: North American Regional Reanalysis (NARR) and North America Land Data Assimilation System (NLDAS), were fitted into the model separately to compare their performances. The root mean squared prediction error (RMSPE) showed that the prediction accuracy was 83.6% and 83.9% for NARR and NLDAS in model fitting, and 69.9% and 72.5% in cross validation. The results indicated that GWR combined with AOD, meteorological parameters, and land use information as the predictor variables could generate a better fit and achieve high accuracy in PM2.5 exposure estimation, and NLDAS could be used as an alternative of the NARR to provide some of the meteorological fields. JF - Mineralogical Magazine AU - Liu, Yang AU - Hu, Xuefei AU - Waller, L AU - Al Hamdan, Mohammad AU - Crosson, William AU - Estes, Maury G AU - Estes, Sue M AU - Quattrochi, Dale AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1345 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - United States KW - risk management KW - medical geology KW - statistical analysis KW - atmosphere KW - human ecology KW - Atlanta Georgia KW - Fulton County Georgia KW - aerosols KW - risk assessment KW - air KW - Georgia KW - public health KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1434005638?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Estimating+ground+level+PM+%28super+2.5%29+concentrations+in+Atlanta+metro+area+using+spatial+statistical+models&rft.au=Liu%2C+Yang%3BHu%2C+Xuefei%3BWaller%2C+L%3BAl+Hamdan%2C+Mohammad%3BCrosson%2C+William%3BEstes%2C+Maury+G%3BEstes%2C+Sue+M%3BQuattrochi%2C+Dale%3BAnonymous&rft.aulast=Liu&rft.aufirst=Yang&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1345&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1261.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2013-01-01 N1 - Document feature - illus. N1 - Last updated - 2013-09-20 N1 - CODEN - MNLMBB N1 - SubjectsTermNotLitGenreText - aerosols; air; Atlanta Georgia; atmosphere; Fulton County Georgia; Georgia; human ecology; medical geology; public health; risk assessment; risk management; statistical analysis; United States ER - TY - JOUR T1 - Interannual to decadal variability of Atlantic water in the Nordic and adjacent seas AN - 1429837054; 2013-068467 AB - Warm salty Atlantic Water is the main source water for the Arctic Ocean and thus plays an important role in the mass and heat budget of the Arctic. This study explores interannual to decadal variability of Atlantic Water properties in the Nordic Seas area where Atlantic Water enters the Arctic, based on a reexamination of the historical hydrographic record for the years 1950-2009, obtained by combining multiple data sets. The analysis shows a succession of four multiyear warm events where temperature anomalies at 100 m depth exceed 0.4 degrees C, and three cold events. Three of the four warm events lasted 3-4 years, while the fourth began in 1999 and persists at least through 2009. This most recent warm event is anomalous in other ways as well, being the strongest, having the broadest geographic extent, being surface-intensified, and occurring under exceptional meteorological conditions. Three of the four warm events were accompanied by elevated salinities consistent with enhanced ocean transport into the Nordic Seas, with the exception of the event spanning July 1989-July 1993. Of the three cold events, two lasted for 4 years, while the third lasted for nearly 14 years. Two of the three cold events are associated with reduced salinities, but the cold event of the 1960s had elevated salinities. The relationship of these events to meteorological conditions is examined. The results show that local surface heat flux variations act in some cases to reinforce the anomalies, but are too weak to be the sole cause. JF - Journal of Geophysical Research AU - Carton, James A AU - Chepurin, Gennady A AU - Reagan, James AU - Hakkinen, Sirpa Y1 - 2011 PY - 2011 DA - 2011 EP - Citation C11035 PB - American Geophysical Union, Washington, DC VL - 116 IS - C11 SN - 0148-0227, 0148-0227 KW - currents KW - decadal variations KW - ocean circulation KW - sea water KW - heat flux KW - annual variations KW - Norwegian Sea KW - salinity KW - ocean currents KW - temperature KW - Arctic Ocean KW - North Atlantic KW - meteorology KW - Atlantic Ocean KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1429837054?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Interannual+to+decadal+variability+of+Atlantic+water+in+the+Nordic+and+adjacent+seas&rft.au=Carton%2C+James+A%3BChepurin%2C+Gennady+A%3BReagan%2C+James%3BHakkinen%2C+Sirpa&rft.aulast=Carton&rft.aufirst=James&rft.date=2011-01-01&rft.volume=116&rft.issue=C11&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2011JC007102 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2013-01-01 N1 - Number of references - 34 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2013-09-05 N1 - SubjectsTermNotLitGenreText - annual variations; Arctic Ocean; Atlantic Ocean; currents; decadal variations; heat flux; meteorology; North Atlantic; Norwegian Sea; ocean circulation; ocean currents; salinity; sea water; temperature DO - http://dx.doi.org/10.1029/2011JC007102 ER - TY - JOUR T1 - MADE-in: a new aerosol microphysics submodel for global simulation of insoluble particles and their mixing state AN - 1412501602; 18223462 AB - Black carbon (BC) and mineral dust are among the most abundant insoluble aerosol components in the atmosphere. When released, most BC and dust particles are externally mixed with other aerosol species. Through coagulation with particles containing soluble material and condensation of gases, the externally mixed particles may obtain a liquid coating and be transferred into an internal mixture. The mixing state of BC and dust aerosol particles influences their radiative and hygroscopic properties, as well as their ability of forming ice crystals. We introduce the new aerosol microphysics submodel MADE-in, implemented within the ECHAM/MESSy Atmospheric Chemistry global model (EMAC). MADE-in is able to track mass and number concentrations of BC and dust particles in their different mixing states, as well as particles free of BC and dust. MADE-in describes these three classes of particles through a superposition of seven log-normally distributed modes, and predicts the evolution of their size distribution and chemical composition. Six out of the seven modes are mutually interacting, allowing for the transfer of mass and number among them. Separate modes for the different mixing states of BC and dust particles in EMAC/MADE-in allow for explicit simulations of the relevant aging processes, i.e. condensation, coagulation and cloud processing. EMAC/MADE-in has been evaluated with surface and airborne measurements and mostly performs well both in the planetary boundary layer and in the upper troposphere and lowermost stratosphere. JF - Geoscientific Model Development AU - Aquila, V AU - Hendricks, J AU - Lauer, A AU - Riemer, N AU - Vogel, H AU - Baumgardner, D AU - Minikin, A AU - Petzold, A AU - Schwarz, J P AU - Spackman, J R AU - Weinzierl, B AU - Righi, M AU - Dall'Amico, M AD - NASA Goddard Space Flight Center, Greenbelt, Maryland, USA, valentina.aquila@nasa.gov A2 - Boucher, O (ed) Y1 - 2011 PY - 2011 DA - 2011 SP - 325 EP - 355 PB - European Geosciences Union, c/o E.O.S.T. 5, rue Rene Descartes Strasbourg Cedex 67084 France VL - 4 IS - 2 SN - 1991-959X, 1991-959X KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts KW - Aerosols KW - Chemical composition KW - Atmospheric pollution models KW - Coagulation KW - Aerosol particles KW - Simulation KW - Black carbon aerosols KW - Particulates KW - Dust particles KW - Stratosphere KW - Dust KW - Clouds KW - Numerical simulations KW - Atmospheric chemistry KW - Condensation KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1412501602?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geoscientific+Model+Development&rft.atitle=MADE-in%3A+a+new+aerosol+microphysics+submodel+for+global+simulation+of+insoluble+particles+and+their+mixing+state&rft.au=Aquila%2C+V%3BHendricks%2C+J%3BLauer%2C+A%3BRiemer%2C+N%3BVogel%2C+H%3BBaumgardner%2C+D%3BMinikin%2C+A%3BPetzold%2C+A%3BSchwarz%2C+J+P%3BSpackman%2C+J+R%3BWeinzierl%2C+B%3BRighi%2C+M%3BDall%27Amico%2C+M&rft.aulast=Aquila&rft.aufirst=V&rft.date=2011-01-01&rft.volume=4&rft.issue=2&rft.spage=325&rft.isbn=&rft.btitle=&rft.title=Geoscientific+Model+Development&rft.issn=1991959X&rft_id=info:doi/10.5194%2Fgmd-4-325-2011 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-07-01 N1 - Last updated - 2015-03-20 N1 - SubjectsTermNotLitGenreText - Atmospheric pollution models; Coagulation; Numerical simulations; Aerosol particles; Atmospheric chemistry; Black carbon aerosols; Condensation; Dust particles; Stratosphere; Clouds; Aerosols; Chemical composition; Simulation; Particulates; Dust DO - http://dx.doi.org/10.5194/gmd-4-325-2011 ER - TY - GEN T1 - Eating in Space: Food for Thought. EG-2011-08-00005-SSC AN - 1373090976; ED543078 AB - Among the thousands of questions that need to be answered before astronauts travel to distant planets and asteroids are questions related to the astronauts themselves. How much food will they need and what foods can they take? We are fortunate on Earth to have an amazing variety of foods to eat. When astronauts do go to Mars and other destinations, mission crews will be international. Carrying food the entire crew likes will be a real challenge. In this two-part activity, student teams will learn how to determine calorie requirements of astronauts and plan a one-day menu for an American astronaut and one for an international astronaut. In an optional extension to this activity, teams can learn how the calorie content (energy contained) in different foods is determined. They will measure the energy in several foods using a calorimeter they construct from simple materials. Appended are: (1) International Space Station Standard Menu Nutritional Data; and (2) Cooking Conversion Table. (Contains 3 footnotes.) AU - Vogt, Gregory L. AU - Shearer, Deborah A. Y1 - 2011 PY - 2011 DA - 2011 SP - 52 PB - National Aeronautics and Space Administration. Public Communications and Inquiries Management Office, NASA Headquarters Suite 1M32, Washington, DC 20546-0001. KW - ERIC, Resources in Education (RIE) KW - Students KW - Teachers KW - Grade 5 KW - Grade 6 KW - Grade 7 KW - Grade 8 KW - Cooperative Learning KW - Energy KW - Dietetics KW - Food KW - Planning KW - Teamwork KW - Science Instruction KW - Space Exploration KW - Nutrition KW - Space Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1373090976?accountid=14244 LA - English DB - ERIC N1 - Last updated - 2017-01-13 ER - TY - JOUR T1 - Rapidly assessing changes in bone mineral balance using natural stable calcium isotopes AN - 1371766426; 2013-048892 AB - We demonstrate that variations in the Ca isotope ratios in urine rapidly and quantitatively reflect changes in bone mineral balance. This variation occurs because bone formation depletes soft tissue of light Ca isotopes, while bone resorption releases that isotopically light Ca back into soft tissue. In a study of 12 individuals confined to bed rest, a condition known to induce bone resorption, we show that Ca isotope ratios shift in a direction consistent with net bone loss after just 7 days, long before detectible changes in bone density occur. Consistent with this interpretation, the Ca isotope variations track changes observed in N-teleopeptide, a bone resorption biomarker, while bone-specific alkaline phosphatase, a bone formation biomarker, is unchanged. Ca isotopes can in principle be used to quantify net changes in bone mass. Ca isotopes indicate an average loss of 0.62 + or - 0.16 % in bone mass over the course of this 30-day study. The Ca isotope technique should accelerate the pace of discovery of new treatments for bone disease and provide novel insights into the dynamics of bone metabolism. JF - Mineralogical Magazine AU - Morgan, J L L AU - Gordon, G W AU - Romaniello, S J AU - Skulan, J L AU - Smith, S M AU - Anbar, A D AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1501 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - calcium KW - alkaline earth metals KW - sorption KW - medical geology KW - isotopes KW - isotope ratios KW - biomarkers KW - stable isotopes KW - Ca-44/Ca-40 KW - metals KW - bones KW - chemical composition KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1371766426?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Rapidly+assessing+changes+in+bone+mineral+balance+using+natural+stable+calcium+isotopes&rft.au=Morgan%2C+J+L+L%3BGordon%2C+G+W%3BRomaniello%2C+S+J%3BSkulan%2C+J+L%3BSmith%2C+S+M%3BAnbar%2C+A+D%3BAnonymous&rft.aulast=Morgan&rft.aufirst=J+L&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1501&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1374.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2013-01-01 N1 - Number of references - 1 N1 - Document feature - illus. N1 - Last updated - 2013-06-27 N1 - CODEN - MNLMBB N1 - SubjectsTermNotLitGenreText - alkaline earth metals; biomarkers; bones; Ca-44/Ca-40; calcium; chemical composition; isotope ratios; isotopes; medical geology; metals; sorption; stable isotopes ER - TY - JOUR T1 - Mid-infrared spectrophotometric observations of fragments B and C of Comet 73P/Schwassmann-Wachmann 3 AN - 1371763417; 2013-051031 AB - We present mid-infrared spectra and images from the Gemini-N (+ Michelle) observations of fragments SW3-[B] and SW3-[C] of the ecliptic (Jupiter family) comet 73P/Schwassmann-Wachmann 3 pre-perihelion. We observed fragment B soon after an outburst event (between 2006 April 16-26 UT) and detected crystalline silicates. The mineralogy of both fragments was dominated by amorphous carbon and amorphous pyroxene. The grain size distribution (assuming a Hanner-modified power law) for fragment SW3-[B] has a peak grain radius of a (sub p) approximately 0.5 mu m, and for fragment SW3-[C], a (sub p) approximately 0.3 mu m; both values are larger than the peak grain radius of the size distribution for the dust ejected from ecliptic comet 9P/Tempel 1 during the Deep Impact event (a (sub p) = 0.2 mu m). The silicate-to-carbon ratio and the silicate crystalline mass fraction for the submicron to micron-sized portion of the grain size distribution on the nucleus of fragment SW3-[B] were 1.341 (super +0.250) (sub -0.253) and 0.335 (super +0.089) (sub -0.112) , respectively, while on the nucleus of fragment SW3-[C] they were 0.671 (super +0.076) (sub -0.076) and 0.257 (super +0.039) (sub -0.043) , respectively. The similarity in mineralogy and grain properties between the two fragments implies that 73P/Schwassmann-Wachmann 3 is homogeneous in composition. The slight differences in grain size distribution and silicate-to-carbon ratio between the two fragments likely arise because SW3-[B] was actively fragmenting throughout its passage while the activity in SW3-[C] was primarily driven by jets. The lack of diverse mineralogy in the fragments SW3-[B] and SW3-[C] of 73P/Schwassmann-Wachmann 3 along with the relatively larger peak in the coma grain size distribution suggests that the parent body of this comet may have formed in a region of the solar nebula with different environmental properties than the natal sites where comet C/1995 O1 (Hale-Bopp) and 9P/Tempel 1 nuclei aggregated. Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The Astronomical Journal (New York) AU - Harker, David E AU - Woodward, Charles E AU - Kelley, Michael S AU - Sitko, Michael L AU - Wooden, Diane H AU - Lynch, David K AU - Russell, Ray W Y1 - 2011/01/01/ PY - 2011 DA - 2011 Jan 01 EP - paper 26 PB - American Institute of Physics and IOP Publishing, Washington, DC VL - 141 IS - 1 SN - 0004-6256, 0004-6256 KW - silicates KW - Tempel 1 Comet KW - Schwassman-Wachmann 3 Comet KW - grain size KW - Jupiter KW - infrared spectra KW - giant planets KW - solar nebula KW - planets KW - size distribution KW - photometry KW - pyroxene group KW - mineral composition KW - comets KW - fragments KW - carbon KW - Hale-Bopp Comet KW - spectra KW - outer planets KW - chain silicates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1371763417?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Astronomical+Journal+%28New+York%29&rft.atitle=Mid-infrared+spectrophotometric+observations+of+fragments+B+and+C+of+Comet+73P%2FSchwassmann-Wachmann+3&rft.au=Harker%2C+David+E%3BWoodward%2C+Charles+E%3BKelley%2C+Michael+S%3BSitko%2C+Michael+L%3BWooden%2C+Diane+H%3BLynch%2C+David+K%3BRussell%2C+Ray+W&rft.aulast=Harker&rft.aufirst=David&rft.date=2011-01-01&rft.volume=141&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+Astronomical+Journal+%28New+York%29&rft.issn=00046256&rft_id=info:doi/10.1088%2F0004-6256%2F141%2F1%2F26 L2 - http://www.iop.org/EJ/journal/aj LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 97 N1 - PubXState - DC N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2013-06-27 N1 - SubjectsTermNotLitGenreText - carbon; chain silicates; comets; fragments; giant planets; grain size; Hale-Bopp Comet; infrared spectra; Jupiter; mineral composition; outer planets; photometry; planets; pyroxene group; Schwassman-Wachmann 3 Comet; silicates; size distribution; solar nebula; spectra; Tempel 1 Comet DO - http://dx.doi.org/10.1088/0004-6256/141/1/26 ER - TY - JOUR T1 - Near-infrared spectroscopy of Trojan asteroids; evidence for two compositional groups AN - 1371763397; 2013-051030 AB - The Trojan asteroids, a very substantial population of primitive bodies trapped in Jupiter's stable Lagrange regions, remain quite poorly understood. Because they occupy these orbits, the physical properties of Trojans provide a unique perspective on the chemical and dynamical processes that shaped the Solar System. The current study was therefore undertaken to investigate surface compositions of these objects. We present 66 new near-infrared (NIR; 0.7-2.5 mu m) spectra of 58 Trojan asteroids, including members of both the leading and trailing swarms. We also include in the analysis previously published NIR spectra of 13 Trojans (3 of which overlap with the new sample). This data set permits not only a direct search for compositional signatures, but also a search for patterns that may reveal clues to the origin of the Trojans. We do not report any confirmed absorption features in the new spectra. Analysis of the spectral slopes, however, reveals an interesting bimodality among the NIR data. The two spectral groups identified appear to be equally abundant in the leading and trailing swarms. The spectral groups are not a result of family membership; they occur in the background, non-family population. The average albedos of the two groups are the same within uncertainties (0.051+ or -0.016 and 0.055+ or -0.016). No correlations between spectral slope and any other physical or orbital parameter are detected, with the exception of a possible weak correlation with inclination among the less-red spectral group. The NIR spectral groups are consistent with a similar bimodality previously suggested among visible colors and spectra. Synthesizing the present results with previously published properties of Trojans, we conclude that the two spectral groups represent objects with different intrinsic compositions. We further suggest that whereas the less-red group originated near Jupiter or in the main asteroid belt, the redder spectral group originated farther out in the Solar System. If this suggestion is correct, the Trojan swarms offer the most readily accessible large reservoir of Kuiper Belt material as well as a unique reservoir for the study of material from the middle part of the solar nebula. Copyright (Copyright) 2011. The American Astronomical Society. All rights reserved. JF - The Astronomical Journal (New York) AU - Emery, J P AU - Burr, D M AU - Cruikshank, D P Y1 - 2011/01/01/ PY - 2011 DA - 2011 Jan 01 EP - paper 25 PB - American Institute of Physics and IOP Publishing, Washington, DC VL - 141 IS - 1 SN - 0004-6256, 0004-6256 KW - albedo KW - near-infrared spectra KW - bimodal composition KW - asteroids KW - Trojan asteroids KW - orbits KW - Kuiper Belt KW - composition KW - spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1371763397?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Astronomical+Journal+%28New+York%29&rft.atitle=Near-infrared+spectroscopy+of+Trojan+asteroids%3B+evidence+for+two+compositional+groups&rft.au=Emery%2C+J+P%3BBurr%2C+D+M%3BCruikshank%2C+D+P&rft.aulast=Emery&rft.aufirst=J&rft.date=2011-01-01&rft.volume=141&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+Astronomical+Journal+%28New+York%29&rft.issn=00046256&rft_id=info:doi/10.1088%2F0004-6256%2F141%2F1%2F25 L2 - http://www.iop.org/EJ/journal/aj LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 77 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Includes appendix N1 - Last updated - 2013-06-27 N1 - SubjectsTermNotLitGenreText - albedo; asteroids; bimodal composition; composition; Kuiper Belt; near-infrared spectra; orbits; spectra; Trojan asteroids DO - http://dx.doi.org/10.1088/0004-6256/141/1/25 ER - TY - JOUR T1 - The role of comets as possible contributors of water and prebiotic organics to terrestrial planets AN - 1371760267; 2013-048917 AB - The question of exogenous delivery of organics and water to Earth and other young planets is of critical importance for understanding the origin of Earth's water, and for assessing the prospects for existence of Earth-like exo-planets. Viewed from a cosmic perspective, Earth is a dry planet yet its oceans are enriched in deuterium by a large factor relative to nebular hydrogen. Can comets have delivered Earth's water? The deuterium content of comets is key to assessing their role as contributors of water to Earth. Icy bodies today reside in two distinct reservoirs, the Oort Cloud and the Kuiper Disk (divided into the classical disk, the scattered disk, and the detached or extended disk populations). Orbital parameters can indicate the cosmic storage reservoir for a given comet. Knowledge of the diversity of comets within a reservoir assists in assessing their possible contribution to early Earth, but requires quantitative knowledge of their components - dust and ice. Strong gradients in temperature and chemistry in the proto-planetary disk, coupled with dynamical dispersion of an outer disk of icy planetesimals, imply that comets from KD and OC reservoirs should have diverse composition. The primary volatiles (native to the nucleus) provide the preferred metric for building a taxonomy for comets, and the number of comets so quantified is growing rapidly. Taxonomies based on native species (primary volatiles) are now beginning to emerge [1, 2, 3]. The measurement of cosmic parameters such as the nuclear spin temperatures for H (super 2) O, NH (super 3) , and CH (super 4) , and of enrichment factors for isotopologues (D/H in water and hydrogen cyanide, (super 14) N/ (super 15) N in CN and hydrogen cyanide) provide additional tests of the origin of cometary material. I will provide an overview of these aspects, and implications for the origin of Earth's water and prebiotic organics JF - Mineralogical Magazine AU - Mumma, M J AU - Charnley, S B AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1513 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - water KW - terrestrial planets KW - planets KW - theoretical studies KW - organic compounds KW - Earth KW - comets KW - extrasolar planets KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1371760267?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=The+role+of+comets+as+possible+contributors+of+water+and+prebiotic+organics+to+terrestrial+planets&rft.au=Mumma%2C+M+J%3BCharnley%2C+S+B%3BAnonymous&rft.aulast=Mumma&rft.aufirst=M&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1513&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1374.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2013-01-01 N1 - Number of references - 3 N1 - Last updated - 2013-06-27 N1 - CODEN - MNLMBB N1 - SubjectsTermNotLitGenreText - comets; Earth; extrasolar planets; organic compounds; planets; terrestrial planets; theoretical studies; water ER - TY - JOUR T1 - What influences climate and glacier change in southwestern China? AN - 1366815399; 2013-046590 JF - Environmental Research Letters AU - Yasunari, Teppei J Y1 - 2011 PY - 2011 DA - 2011 EP - Citation 041001 PB - Institute of Physics and IOP Publishing, Bristol VL - 6 IS - 4 KW - Far East KW - altitude KW - southwestern China KW - glaciers KW - atmosphere KW - atmospheric precipitation KW - climate change KW - temperature KW - atmospheric circulation KW - melting KW - mass balance KW - Tibetan Plateau KW - snow KW - Himalayas KW - seasonal variations KW - Asia KW - water resources KW - climate KW - China KW - meltwater KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1366815399?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Research+Letters&rft.atitle=What+influences+climate+and+glacier+change+in+southwestern+China%3F&rft.au=Yasunari%2C+Teppei+J&rft.aulast=Yasunari&rft.aufirst=Teppei&rft.date=2011-01-01&rft.volume=6&rft.issue=4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Environmental+Research+Letters&rft.issn=1748-9326&rft_id=info:doi/10.1088%2F1748-9326%2F6%2F4%2F041001 L2 - http://iopscience.iop.org/1748-9326 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 24 N1 - Last updated - 2013-06-13 N1 - SubjectsTermNotLitGenreText - altitude; Asia; atmosphere; atmospheric circulation; atmospheric precipitation; China; climate; climate change; Far East; glaciers; Himalayas; mass balance; melting; meltwater; seasonal variations; snow; southwestern China; temperature; Tibetan Plateau; water resources DO - http://dx.doi.org/10.1088/1748-9326/6/4/041001 ER - TY - JOUR T1 - In situ measurements of tropospheric volcanic plumes in Ecuador and Colombia during TC (super 4) AN - 1312836737; 2013-022514 AB - A NASA DC-8 research aircraft penetrated tropospheric gas and aerosol plumes sourced from active volcanoes in Ecuador and Colombia during the Tropical Composition, Cloud and Climate Coupling (TC (super 4) ) mission in July-August 2007. The likely source volcanoes were Tungurahua (Ecuador) and Nevado del Huila (Colombia). The TC (super 4) data provide rare insight into the chemistry of volcanic plumes in the tropical troposphere and permit a comparison of SO (sub 2) column amounts measured by the Ozone Monitoring Instrument (OMI) on the Aura satellite with in situ SO (sub 2) measurements. Elevated concentrations of SO (sub 2) , sulfate aerosol, and particles were measured by DC-8 instrumentation in volcanic outflow at altitudes of 3-6 km. Estimated plume ages range from approximately 2 h at Huila to approximately 22-48 h downwind of Ecuador. The plumes contained sulfate-rich accumulation mode particles that were variably neutralized and often highly acidic. A significant fraction of supermicron volcanic ash was evident in one plume. In-plume O (sub 3) concentrations were approximately 70%-80% of ambient levels downwind of Ecuador, but data are insufficient to ascribe this to O (sub 3) depletion via reactive halogen chemistry. The TC (super 4) data record rapid cloud processing of the Huila volcanic plume involving aqueous-phase oxidation of SO (sub 2) by H (sub 2) O (sub 2) , but overall the data suggest average in-plume SO (sub 2) to sulfate conversion rates of approximately 1%-2% h (super -1) . SO (sub 2) column amounts measured in the Tungurahua plume ( approximately 0.1-0.2 Dobson units) are commensurate with average SO (sub 2) columns retrieved from OMI measurements in the volcanic outflow region in July 2007. The TC (super 4) data set provides further evidence of the impact of volcanic emissions on tropospheric acidity and oxidizing capacity. JF - Journal of Geophysical Research AU - Carn, S A AU - Froyd, K D AU - Anderson, B E AU - Wennberg, P AU - Crounse, J AU - Spencer, K AU - Dibb, J E AU - Krotkov, N A AU - Browell, E V AU - Hair, J W AU - Diskin, G AU - Sachse, G AU - Vay, S A Y1 - 2011 PY - 2011 DA - 2011 EP - Citation D00J24 PB - American Geophysical Union, Washington, DC VL - 116 IS - D SN - 0148-0227, 0148-0227 KW - sulfur dioxide KW - Andes KW - plumes KW - monitoring KW - Ecuador KW - atmosphere KW - troposphere KW - Colombia KW - Tungurahua KW - South America KW - ozone KW - volcanism KW - eruptions KW - volcanoes KW - aerosols KW - chemical composition KW - pH KW - Nevado del Huila KW - airborne methods KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312836737?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=In+situ+measurements+of+tropospheric+volcanic+plumes+in+Ecuador+and+Colombia+during+TC+%28super+4%29&rft.au=Carn%2C+S+A%3BFroyd%2C+K+D%3BAnderson%2C+B+E%3BWennberg%2C+P%3BCrounse%2C+J%3BSpencer%2C+K%3BDibb%2C+J+E%3BKrotkov%2C+N+A%3BBrowell%2C+E+V%3BHair%2C+J+W%3BDiskin%2C+G%3BSachse%2C+G%3BVay%2C+S+A&rft.aulast=Carn&rft.aufirst=S&rft.date=2011-01-01&rft.volume=116&rft.issue=D&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JD014718 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2013-01-01 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables, geol. sketch map N1 - Last updated - 2013-02-28 N1 - SubjectsTermNotLitGenreText - aerosols; airborne methods; Andes; atmosphere; chemical composition; Colombia; Ecuador; eruptions; monitoring; Nevado del Huila; ozone; pH; plumes; South America; sulfur dioxide; troposphere; Tungurahua; volcanism; volcanoes DO - http://dx.doi.org/10.1029/2010JD014718 ER - TY - JOUR T1 - Variation of accumulation rates over the last eight centuries on the East Antarctic Plateau derived from volcanic signals in ice cores AN - 1312836286; 2013-022725 AB - Volcanic signatures in ice-core records provide an excellent means to date the cores and obtain information about accumulation rates. From several ice cores it is thus possible to extract a spatio-temporal accumulation pattern. We show records of electrical conductivity and sulfur from 13 firn cores from the Norwegian-USA scientific traverse during the International Polar Year 2007-2009 (IPY) through East Antarctica. Major volcanic eruptions are identified and used to assess century-scale accumulation changes. The largest changes seem to occur in the most recent decades with accumulation over the period 1963-2007/08 being up to 25% different from the long-term record. There is no clear overall trend, some sites show an increase in accumulation over the period 1963 to present while others show a decrease. Almost all of the sites above 3200 m above sea level (asl) suggest a decrease. These sites also show a significantly lower accumulation value than large-scale assessments both for the period 1963 to present and for the long-term mean at the respective drill sites. The spatial accumulation distribution is influenced mainly by elevation and distance to the ocean (continentality), as expected. Ground-penetrating radar data around the drill sites show a spatial variability within 10-20% over several tens of kilometers, indicating that our drill sites are well representative for the area around them. Our results are important for large-scale assessments of Antarctic mass balance and model validation. JF - Journal of Geophysical Research AU - Anschutz, Helgard AU - Sinisalo, A AU - Isaksson, E AU - McConnell, J R AU - Hamran, S E AU - Bisiaux, M M AU - Pasteris, D AU - Neumann, T A AU - Winther, J G Y1 - 2011 PY - 2011 DA - 2011 EP - Citation D20103 PB - American Geophysical Union, Washington, DC VL - 116 IS - D20 SN - 0148-0227, 0148-0227 KW - ice cores KW - electrical conductivity KW - Quaternary KW - International Polar Year 2007-08 KW - paleoatmosphere KW - firn KW - East Antarctica KW - Holocene KW - IPY 2007-08 Research Publications KW - Cenozoic KW - Antarctica KW - volcanism KW - ice KW - eruptions KW - snow KW - upper Holocene KW - chemical composition KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312836286?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Variation+of+accumulation+rates+over+the+last+eight+centuries+on+the+East+Antarctic+Plateau+derived+from+volcanic+signals+in+ice+cores&rft.au=Anschutz%2C+Helgard%3BSinisalo%2C+A%3BIsaksson%2C+E%3BMcConnell%2C+J+R%3BHamran%2C+S+E%3BBisiaux%2C+M+M%3BPasteris%2C+D%3BNeumann%2C+T+A%3BWinther%2C+J+G&rft.aulast=Anschutz&rft.aufirst=Helgard&rft.date=2011-01-01&rft.volume=116&rft.issue=D20&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2011JD015753 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2013-01-01 N1 - Number of references - 43 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2013-02-28 N1 - SubjectsTermNotLitGenreText - Antarctica; Cenozoic; chemical composition; East Antarctica; electrical conductivity; eruptions; firn; Holocene; ice; ice cores; International Polar Year 2007-08; IPY 2007-08 Research Publications; paleoatmosphere; Quaternary; snow; upper Holocene; volcanism DO - http://dx.doi.org/10.1029/2011JD015753 ER - TY - JOUR T1 - The community Noah land surface model with multiparameterization options (Noah-MP); 1, Model description and evaluation with local-scale measurements AN - 1312835767; 2013-022700 AB - This first paper of the two-part series describes the objectives of the community efforts in improving the Noah land surface model (LSM), documents, through mathematical formulations, the augmented conceptual realism in biophysical and hydrological processes, and introduces a framework for multiple options to parameterize selected processes (Noah-MP). The Noah-MP's performance is evaluated at various local sites using high temporal frequency data sets, and results show the advantages of using multiple optional schemes to interpret the differences in modeling simulations. The second paper focuses on ensemble evaluations with long-term regional (basin) and global scale data sets. The enhanced conceptual realism includes (1) the vegetation canopy energy balance, (2) the layered snowpack, (3) frozen soil and infiltration, (4) soil moisture-groundwater interaction and related runoff production, and (5) vegetation phenology. Sample local-scale validations are conducted over the First International Satellite Land Surface Climatology Project (ISLSCP) Field Experiment (FIFE) site, the W3 catchment of Sleepers River, Vermont, and a French snow observation site. Noah-MP shows apparent improvements in reproducing surface fluxes, skin temperature over dry periods, snow water equivalent (SWE), snow depth, and runoff over Noah LSM version 3.0. Noah-MP improves the SWE simulations due to more accurate simulations of the diurnal variations of the snow skin temperature, which is critical for computing available energy for melting. Noah-MP also improves the simulation of runoff peaks and timing by introducing a more permeable frozen soil and more accurate simulation of snowmelt. We also demonstrate that Noah-MP is an effective research tool by which modeling results for a given process can be interpreted through multiple optional parameterization schemes in the same model framework. JF - Journal of Geophysical Research AU - Niu, Guo-Yue AU - Yang, Zong-Liang AU - Mitchell, Kenneth E AU - Chen, Fei AU - Ek, Michael B AU - Barlage, Michael AU - Kumar, Anil AU - Manning, Kevin AU - Niyogi, Dev AU - Rosero, Enrique AU - Tewari, Mukul AU - Xia, Youlong Y1 - 2011 PY - 2011 DA - 2011 EP - Citation D12109 PB - American Geophysical Union, Washington, DC VL - 116 IS - D12 SN - 0148-0227, 0148-0227 KW - soils KW - hydrology KW - land cover KW - permafrost KW - snow cover KW - snow water equivalent KW - vegetation KW - energy balance KW - climate change KW - models KW - snow KW - mathematical methods KW - surface features KW - climate effects KW - geomorphology KW - frozen ground KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312835767?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=The+community+Noah+land+surface+model+with+multiparameterization+options+%28Noah-MP%29%3B+1%2C+Model+description+and+evaluation+with+local-scale+measurements&rft.au=Niu%2C+Guo-Yue%3BYang%2C+Zong-Liang%3BMitchell%2C+Kenneth+E%3BChen%2C+Fei%3BEk%2C+Michael+B%3BBarlage%2C+Michael%3BKumar%2C+Anil%3BManning%2C+Kevin%3BNiyogi%2C+Dev%3BRosero%2C+Enrique%3BTewari%2C+Mukul%3BXia%2C+Youlong&rft.aulast=Niu&rft.aufirst=Guo-Yue&rft.date=2011-01-01&rft.volume=116&rft.issue=D12&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JD015139 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2013-01-01 N1 - Number of references - 45 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2013-02-28 N1 - SubjectsTermNotLitGenreText - climate change; climate effects; energy balance; frozen ground; geomorphology; hydrology; land cover; mathematical methods; models; permafrost; snow; snow cover; snow water equivalent; soils; surface features; vegetation DO - http://dx.doi.org/10.1029/2010JD015139 ER - TY - JOUR T1 - Heterogeneous distributions of amino acids provide evidence of multiple sources within the Almahata Sitta parent body, asteroid 2008 TC (sub 3) AN - 1287379403; 2013-019698 AB - Two new fragments of the Almahata Sitta meteorite and a sample of sand from the related strewn field in the Nubian Desert, Sudan, were analyzed for two to six carbon aliphatic primary amino acids by ultrahigh performance liquid chromatography with UV-fluorescence detection and time-of-flight mass spectrometry (LC-FT/ToF-MS). The distribution of amino acids in fragment #25, an H5 ordinary chondrite, and fragment #27, a polymict ureilite, were compared with results from the previously analyzed fragment #4, also a polymict ureilite. All three meteorite fragments contain 180-270 parts-per-billion (ppb) of amino acids, roughly 1000-fold lower than the total amino acid abundance of the Murchison carbonaceous chondrite. All of the Almahata Sitta fragments analyzed have amino acid distributions that differ from the Nubian Desert sand, which primarily contains l-alpha -amino acids. In addition, the meteorites contain several amino acids that were not detected in the sand, indicating that many of the amino acids are extraterrestrial in origin. Despite their petrological differences, meteorite fragments #25 and #27 contain similar amino acid compositions; however, the distribution of amino acids in fragment #27 was distinct from those in fragment #4, even though both are polymict ureilites from the same parent body. Unlike in CM2 and CR2/3 meteorites, there are low relative abundances of alpha -amino acids in the Almahata Sitta meteorite fragments, which suggest that Strecker-type chemistry was not a significant amino acid formation mechanism. Given the high temperatures that asteroid 2008 TC (sub 3) appears to have experienced and lack of evidence for aqueous alteration on the asteroid, it is possible that the extraterrestrial amino acids detected in Almahata Sitta were formed by Fischer-Tropsch/Haber-Bosch type gas-grain reactions at elevated temperatures. JF - Meteoritics & Planetary Science AU - Burton, Aaron S AU - Glavin, Daniel P AU - Callahan, Michael P AU - Dworkin, Jason P AU - Jenniskens, Peter M AU - Shaddad, Muawia H Y1 - 2011 PY - 2011 DA - 2011 SP - 1703 EP - 1712 PB - Meteoritical Society, Fayetteville, AR VL - 46 IS - 11 SN - 1086-9379, 1086-9379 KW - ordinary chondrites KW - stony meteorites KW - asteroids KW - TC3 Asteroid KW - mass spectra KW - ultraviolet fluorescence detection KW - meteorites KW - Nubian Desert KW - time-of-flight mass spectroscopy KW - amino acids KW - sediments KW - Almahata Sitta Meteorite KW - spectra KW - heterogeneity KW - chondrites KW - sand KW - clastic sediments KW - parent bodies KW - liquid chromatograms KW - H chondrites KW - ureilite KW - achondrites KW - aqueous alteration KW - organic compounds KW - organic acids KW - fragments KW - chromatograms KW - Africa KW - Sahara KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1287379403?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Heterogeneous+distributions+of+amino+acids+provide+evidence+of+multiple+sources+within+the+Almahata+Sitta+parent+body%2C+asteroid+2008+TC+%28sub+3%29&rft.au=Burton%2C+Aaron+S%3BGlavin%2C+Daniel+P%3BCallahan%2C+Michael+P%3BDworkin%2C+Jason+P%3BJenniskens%2C+Peter+M%3BShaddad%2C+Muawia+H&rft.aulast=Burton&rft.aufirst=Aaron&rft.date=2011-01-01&rft.volume=46&rft.issue=11&rft.spage=1703&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01257.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 28 N1 - PubXState - AR N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2013-02-14 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; Africa; Almahata Sitta Meteorite; amino acids; aqueous alteration; asteroids; chondrites; chromatograms; clastic sediments; fragments; H chondrites; heterogeneity; liquid chromatograms; mass spectra; meteorites; Nubian Desert; ordinary chondrites; organic acids; organic compounds; parent bodies; Sahara; sand; sediments; spectra; stony meteorites; TC3 Asteroid; time-of-flight mass spectroscopy; ultraviolet fluorescence detection; ureilite DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01257.x ER - TY - JOUR T1 - MIL 03443, a dunite from asteroid 4 Vesta; evidence for its classification and cumulate origin AN - 1287378452; 2013-017923 AB - The absence of dunite (>90 vol% olivine) in the howardite, eucrite, and diogenite (HED) meteorite suite, when viewed with respect to spectroscopic and petrologic evidence for olivine on Vesta, is problematic. Herein, we present petrologic, geochemical, and isotopic evidence confirming that Miller Range (MIL) 03443, containing 91 vol% olivine, should be classified with the HED clan rather than with mesosiderites. Similarities in olivine and pyroxene FeO/MnO ratios, mineral compositions, and unusual mineral inclusions between MIL 03443 and the diogenites support their formation on a common parent body. This hypothesis is bolstered by oxygen isotopic and bulk geochemical data. Beyond evidence for its reclassification, we present observations and interpretations that MIL 03443 is probably a crustal cumulate rock like the diogenites, rather than a sample of the Vestan mantle. JF - Meteoritics & Planetary Science AU - Beck, Andrew W AU - Mittlefehldt, David W AU - McSween, Harry Y, Jr AU - Rumble, Douglas, III AU - Lee, Cin-Ty A AU - Bodnar, Robert J Y1 - 2011 PY - 2011 DA - 2011 SP - 1133 EP - 1151 PB - Meteoritical Society, Fayetteville, AR VL - 46 IS - 8 SN - 1086-9379, 1086-9379 KW - silicates KW - stony meteorites KW - asteroids KW - igneous rocks KW - olivine group KW - melt inclusions KW - meteorites KW - pyroxene group KW - plutonic rocks KW - mineral composition KW - cumulates KW - olivine KW - inclusions KW - orthosilicates KW - oxides KW - chemical composition KW - MIL 03443 KW - dunite KW - troilite KW - chain silicates KW - Miller Range Meteorites KW - Vesta Asteroid KW - parent bodies KW - HED meteorites KW - diogenite KW - chromite KW - achondrites KW - ultramafics KW - nesosilicates KW - mineral inclusions KW - classification KW - peridotites KW - petrography KW - fluid inclusions KW - sulfides KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1287378452?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=MIL+03443%2C+a+dunite+from+asteroid+4+Vesta%3B+evidence+for+its+classification+and+cumulate+origin&rft.au=Beck%2C+Andrew+W%3BMittlefehldt%2C+David+W%3BMcSween%2C+Harry+Y%2C+Jr%3BRumble%2C+Douglas%2C+III%3BLee%2C+Cin-Ty+A%3BBodnar%2C+Robert+J&rft.aulast=Beck&rft.aufirst=Andrew&rft.date=2011-01-01&rft.volume=46&rft.issue=8&rft.spage=1133&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01219.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 105 N1 - PubXState - AR N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2013-02-14 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; asteroids; chain silicates; chemical composition; chromite; classification; cumulates; diogenite; dunite; fluid inclusions; HED meteorites; igneous rocks; inclusions; melt inclusions; meteorites; MIL 03443; Miller Range Meteorites; mineral composition; mineral inclusions; nesosilicates; olivine; olivine group; orthosilicates; oxides; parent bodies; peridotites; petrography; plutonic rocks; pyroxene group; silicates; stony meteorites; sulfides; troilite; ultramafics; Vesta Asteroid DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01219.x ER - TY - JOUR T1 - Understanding the mechanisms of formation of nanophase compounds from Stardust; combined experimental and observational approach AN - 1287378430; 2013-017920 AB - We have experimentally produced nanophase sulfide compounds and magnetite embedded in Si-rich amorphous materials by flash-cooling of a gas stream. Similar assemblages are ubiquitous, and often dominant components of samples of impact-processed silica aerogel tiles and submicron grains from comet 81P/Wild 2 were retrieved by NASA's Stardust mission. Although the texture and compositions of nanosulfide compounds have been reproduced experimentally, the mechanisms of formation of these minerals and their relationship with the surrounding amorphous materials have not been established. In this study, we present evidence that both of these materials may not only be produced through cooling of a superheated liquid but they may have also been formed simultaneously by flash-cooling and subsequent deposition of a gas dominated by Fe-S-SiO-O (sub 2) . In a dust generator at the Goddard Space Flight Center, samples are produced by direct gas-phase condensation from gaseous precursors followed by deposition, which effectively isolates the effects of gas-phase reactions from the effects of melting and condensation. High-resolution transmission electron microscopy images and energy-dispersive spectroscopy analysis show that these experiments replicate key features of materials from type B and type C Stardust tracks, including textures, distribution of inclusions, nanophase size, and compositional diversity. We argue that gas-phase reactions may have played a significant role in the capture environment for nanophase materials. Our results are consistent with a potential progenitor assemblage of micron and submicron-sized sulfides and submicron silica-bearing phases, which are commonly observed in chondritic interplanetary dust particles and in the matrices of the most pristine chondritic meteorites. JF - Meteoritics & Planetary Science AU - Abreu, Neyda M AU - Rietmeijer, Frans J M AU - Nuth, Joseph A Y1 - 2011 PY - 2011 DA - 2011 SP - 1082 EP - 1096 PB - Meteoritical Society, Fayetteville, AR VL - 46 IS - 8 SN - 1086-9379, 1086-9379 KW - oxygen KW - iron oxides KW - nanophase compounds KW - silicon KW - interplanetary dust KW - iron KW - melting KW - inclusions KW - cooling KW - Wild 2 Comet KW - oxides KW - experimental studies KW - gaseous phase KW - Stardust Mission KW - condensation KW - amorphous materials KW - textures KW - electron microscopy data KW - TEM data KW - cosmic dust KW - comets KW - metals KW - sulfur KW - sulfides KW - smokes KW - magnetite KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1287378430?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Understanding+the+mechanisms+of+formation+of+nanophase+compounds+from+Stardust%3B+combined+experimental+and+observational+approach&rft.au=Abreu%2C+Neyda+M%3BRietmeijer%2C+Frans+J+M%3BNuth%2C+Joseph+A&rft.aulast=Abreu&rft.aufirst=Neyda&rft.date=2011-01-01&rft.volume=46&rft.issue=8&rft.spage=1082&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01215.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 43 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2013-02-14 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - amorphous materials; comets; condensation; cooling; cosmic dust; electron microscopy data; experimental studies; gaseous phase; inclusions; interplanetary dust; iron; iron oxides; magnetite; melting; metals; nanophase compounds; oxides; oxygen; silicon; smokes; Stardust Mission; sulfides; sulfur; TEM data; textures; Wild 2 Comet DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01215.x ER - TY - JOUR T1 - Meteorites at Meridiani Planum provide evidence for significant amounts of surface and near-surface water on early Mars AN - 1287375374; 2013-019707 AB - Six large iron meteorites have been discovered in the Meridiani Planum region of Mars by the Mars Exploration Rover Opportunity in a nearly 25 km-long traverse. Herein, we review and synthesize the available data to propose that the discovery and characteristics of the six meteorites could be explained as the result of their impact into a soft and wet surface, sometime during the Noachian or the Hesperian, subsequently to be exposed at the Martian surface through differential erosion. As recorded by its sediments and chemical deposits, Meridiani has been interpreted to have undergone a watery past, including a shallow sea, a playa, an environment of fluctuating ground water, and/or an icy landscape. Meteorites could have been encased upon impact and/or subsequently buried, and kept underground for a long time, shielded from the atmosphere. The meteorites apparently underwent significant chemical weathering due to aqueous alteration, as indicated by cavernous features that suggest differential acidic corrosion removing less resistant material and softer inclusions. During the Amazonian, the almost complete disappearance of surface water and desiccation of the landscape, followed by induration of the sediments and subsequent differential erosion and degradation of Meridiani sediments, including at least 10-80 m of deflation in the last 3-3.5 Gy, would have exposed the buried meteorites. We conclude that the iron meteorites support the hypothesis that Mars once had a denser atmosphere and considerable amounts of water and/or water ice at and/or near the surface. JF - Meteoritics & Planetary Science AU - Fairen, Alberto G AU - Dohn, James M AU - Baker, Victor R AU - Thompson, Shane D AU - Mahaney, William C AU - Herkenhoff, Kenneth E AU - Rodriguez, J Alexis P AU - Davila, Alfonso F AU - Schulze-Makuch, Dirk AU - El Maarry, M Ramy AU - Uceda, Esther R AU - Amils, Ricardo AU - Miyamoto, Hirdy AU - Kim, Kyeong J AU - Anderson, Robert C AU - McKay, Christopher P Y1 - 2011 PY - 2011 DA - 2011 SP - 1832 EP - 1841 PB - Meteoritical Society, Fayetteville, AR VL - 46 IS - 12 SN - 1086-9379, 1086-9379 KW - Noachian KW - erosion KW - astrobiology KW - Mars KW - Hesperian KW - burial KW - ground water KW - Mars Exploration Rover KW - meteorites KW - differential erosion KW - transport KW - iron meteorites KW - deflation KW - exhumation KW - Meridiani Planum KW - chemical weathering KW - Opportunity Rover KW - surface water KW - wind erosion KW - weathering KW - terrestrial planets KW - aqueous alteration KW - planets KW - paleoenvironment KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1287375374?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Meteorites+at+Meridiani+Planum+provide+evidence+for+significant+amounts+of+surface+and+near-surface+water+on+early+Mars&rft.au=Fairen%2C+Alberto+G%3BDohn%2C+James+M%3BBaker%2C+Victor+R%3BThompson%2C+Shane+D%3BMahaney%2C+William+C%3BHerkenhoff%2C+Kenneth+E%3BRodriguez%2C+J+Alexis+P%3BDavila%2C+Alfonso+F%3BSchulze-Makuch%2C+Dirk%3BEl+Maarry%2C+M+Ramy%3BUceda%2C+Esther+R%3BAmils%2C+Ricardo%3BMiyamoto%2C+Hirdy%3BKim%2C+Kyeong+J%3BAnderson%2C+Robert+C%3BMcKay%2C+Christopher+P&rft.aulast=Fairen&rft.aufirst=Alberto&rft.date=2011-01-01&rft.volume=46&rft.issue=12&rft.spage=1832&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01297.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 52 N1 - PubXState - AR N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2013-02-14 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - aqueous alteration; astrobiology; burial; chemical weathering; deflation; differential erosion; erosion; exhumation; ground water; Hesperian; iron meteorites; Mars; Mars Exploration Rover; Meridiani Planum; meteorites; Noachian; Opportunity Rover; paleoenvironment; planets; surface water; terrestrial planets; transport; weathering; wind erosion DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01297.x ER - TY - JOUR T1 - Space radiation processing of sulfides and silicates in primitive solar systems materials; comparative insights from in situ TEM ion irradiation experiments AN - 1282823710; 2013-015962 AB - Mineral grains that comprise dust particles in circumstellar, interstellar, and protostellar environments can potentially undergo amorphization and other solid-state transformations from exposure to energetic ions from space plasmas. The Fe-sulfide minerals troilite (FeS) and pyrrhotite (Fe (sub 1-x) S) are important known dust components, but their potential to undergo structural changes, including amorphization, from space radiation processing in dusty space environments has not been experimentally evaluated relative to silicates. We used a transmission electron microscope (TEM) with capabilities for in situ ion irradiation to precisely follow structural changes in troilite and pyrrhotite exposed to 1.0 MeV Kr (super ++) ions selected to optimize the probability of inducing amorphization from nuclear elastic collisional processes. No indication of amorphization was found in either mineral up to an experimentally practical ion dose of 1 X 1016 Kr (super ++) ions cm (super -2) , indicating that both structures can remain crystalline up to a modeled collisional damage level of at least 26 displacements-per-atom. This behavior matches that of some of the most radiation-resistant nonmetallic phases known, and is two orders of magnitude higher than the levels at which Mg-rich olivine and enstatite become amorphous under the same irradiation conditions. Although pyrrhotite retained short-range crystalline order during irradiation, its longer range vacancy-ordered superstructure is removed at modeled damage levels equivalent to those at which olivine and enstatite become amorphous. This suggests that space radiation conditions sufficient to amorphize olivine and enstatite in circumstellar and interstellar environments would convert coexisting pyrrhotite to its disordered structural form, thereby changing magnetic and possibly other properties that determine how pyrrhotite will behave in these environments. JF - Meteoritics & Planetary Science AU - Christofferson, Roy AU - Keller, Lindsay P Y1 - 2011 PY - 2011 DA - 2011 SP - 950 EP - 969 PB - Meteoritical Society, Fayetteville, AR VL - 46 IS - 7 SN - 1086-9379, 1086-9379 KW - silicates KW - irradiation KW - electron diffraction data KW - olivine group KW - interplanetary space KW - ions KW - crystallinity KW - pyroxene group KW - background radiation KW - olivine KW - orthosilicates KW - pyrrhotite KW - interstellar dust KW - troilite KW - enstatite KW - chain silicates KW - transmission electron microscopy KW - solar system KW - experimental studies KW - amorphous materials KW - radiation damage KW - interstellar medium KW - TEM data KW - order-disorder KW - nesosilicates KW - cosmic dust KW - orthopyroxene KW - transformations KW - amorphization KW - sulfides KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1282823710?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Space+radiation+processing+of+sulfides+and+silicates+in+primitive+solar+systems+materials%3B+comparative+insights+from+in+situ+TEM+ion+irradiation+experiments&rft.au=Christofferson%2C+Roy%3BKeller%2C+Lindsay+P&rft.aulast=Christofferson&rft.aufirst=Roy&rft.date=2011-01-01&rft.volume=46&rft.issue=7&rft.spage=950&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01203.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 62 N1 - PubXState - AR N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2013-02-05 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - amorphization; amorphous materials; background radiation; chain silicates; cosmic dust; crystallinity; electron diffraction data; enstatite; experimental studies; interplanetary space; interstellar dust; interstellar medium; ions; irradiation; nesosilicates; olivine; olivine group; order-disorder; orthopyroxene; orthosilicates; pyroxene group; pyrrhotite; radiation damage; silicates; solar system; sulfides; TEM data; transformations; transmission electron microscopy; troilite DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01203.x ER - TY - JOUR T1 - Nanometer-scale anatomy of entire Stardust tracks AN - 1282822348; 2013-015967 AB - We have developed new sample preparation and analytical techniques tailored for entire aerogel tracks of Wild 2 sample analyses both on "carrot" and "bulbous" tracks. We have successfully ultramicrotomed an entire track along its axis while preserving its original shape. This innovation allowed us to examine the distribution of fragments along the entire track from the entrance hole all the way to the terminal particle. The crystalline silicates we measured have Mg-rich compositions and O isotopic compositions in the range of meteoritic materials, implying that they originated in the inner solar system. The terminal particle of the carrot track is a (super 16) O-rich forsteritic grain that may have formed in a similar environment as Ca-, Al-rich inclusions and amoeboid olivine aggregates in primitive carbonaceous chondrites. The track also contains submicron-sized diamond grains likely formed in the solar system. Complex aromatic hydrocarbons distributed along aerogel tracks and in terminal particles. These organics are likely cometary but affected by shock heating. JF - Meteoritics & Planetary Science AU - Nakamura-Messenger, Keiko AU - Keller, Lindsay P AU - Clemett, Simon J AU - Messenger, Scott AU - Ito, Motoo Y1 - 2011 PY - 2011 DA - 2011 SP - 1033 EP - 1051 PB - Meteoritical Society, Fayetteville, AR VL - 46 IS - 7 SN - 1086-9379, 1086-9379 KW - silicates KW - particle tracks KW - magnesium KW - oxygen KW - ion probe data KW - isotopes KW - mass spectra KW - olivine group KW - stable isotopes KW - diamond KW - orthosilicates KW - Wild 2 Comet KW - nepheline group KW - framework silicates KW - spectra KW - O-17/O-16 KW - solar system KW - alkaline earth metals KW - Stardust Mission KW - isotope ratios KW - O-18/O-16 KW - native elements KW - TEM data KW - forsterite KW - nesosilicates KW - sample preparation KW - organic compounds KW - nepheline KW - comets KW - metals KW - fragments KW - hydrocarbons KW - aerogel KW - ultramicrotome KW - NanoSIMS KW - cometary dust KW - aromatic hydrocarbons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1282822348?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Nanometer-scale+anatomy+of+entire+Stardust+tracks&rft.au=Nakamura-Messenger%2C+Keiko%3BKeller%2C+Lindsay+P%3BClemett%2C+Simon+J%3BMessenger%2C+Scott%3BIto%2C+Motoo&rft.aulast=Nakamura-Messenger&rft.aufirst=Keiko&rft.date=2011-01-01&rft.volume=46&rft.issue=7&rft.spage=1033&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01211.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 49 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2013-02-05 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - aerogel; alkaline earth metals; aromatic hydrocarbons; cometary dust; comets; diamond; forsterite; fragments; framework silicates; hydrocarbons; ion probe data; isotope ratios; isotopes; magnesium; mass spectra; metals; NanoSIMS; native elements; nepheline; nepheline group; nesosilicates; O-17/O-16; O-18/O-16; olivine group; organic compounds; orthosilicates; oxygen; particle tracks; sample preparation; silicates; solar system; spectra; stable isotopes; Stardust Mission; TEM data; ultramicrotome; Wild 2 Comet DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01211.x ER - TY - JOUR T1 - New insights into the mineralogy and weathering of the Meridiani Planum meteorite, Mars AN - 1270039038; 2013-010636 AB - Meridiani Planum is the first officially recognized meteorite find on the surface of Mars. It was discovered at and named after the landing site of the Mars Exploration Rover Opportunity. Based on its composition, it was classified as a IAB complex iron meteorite. Moessbauer spectra obtained by Opportunity are dominated by kamacite (alpha -Fe-Ni) and exhibit a small contribution of ferric oxide. Several small features in the spectra have been neglected to date. To shed more light on these features, five iron meteorite specimens were investigated as analogs to Meridiani Planum with a laboratory Moessbauer setup. Measurements were performed on (1) their metallic bulk, (2) troilite (FeS) inclusions, (3) cohenite ((Fe,Ni,Co)3C) and schreibersite ((Fe,Ni)3P), and (4) corroded rims. In addition to these room-temperature measurements, a specimen from the Mundrabilla IAB-ungrouped meteorite was measured at Mars-equivalent temperatures. Based on these measurements, the features in Meridiani Planum spectra can be explained with the presence of small amounts of schreibersite and/or cohenite and iron oxides. The iron oxides can be attributed to a previously reported coating on Meridiani Planum. Their presence indicates weathering through the interaction of the meteorite with small amounts of water. JF - Meteoritics & Planetary Science AU - Fleischer, Iris AU - Schroeder, Christian AU - Klingelhoefer, Goestar AU - Zipfel, Jutta AU - Morris, Richard V AU - Ashley, James W AU - Gellert, Ralf AU - Wehrheim, Simon AU - Ebert, Sandro Y1 - 2011 PY - 2011 DA - 2011 SP - 21 EP - 34 PB - Meteoritical Society, Fayetteville, AR VL - 46 IS - 1 SN - 1086-9379, 1086-9379 KW - iron oxides KW - Mars KW - landing sites KW - kamacite KW - carbides KW - Mars Exploration Rover KW - meteorites KW - schreibersite KW - taenite KW - water-rock interaction KW - iron meteorites KW - oxides KW - alloys KW - spectra KW - Mossbauer spectra KW - Meridiani Planum KW - chemical weathering KW - Opportunity Rover KW - cohenite KW - phosphides KW - weathering KW - terrestrial planets KW - aqueous alteration KW - planets KW - classification KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1270039038?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=New+insights+into+the+mineralogy+and+weathering+of+the+Meridiani+Planum+meteorite%2C+Mars&rft.au=Fleischer%2C+Iris%3BSchroeder%2C+Christian%3BKlingelhoefer%2C+Goestar%3BZipfel%2C+Jutta%3BMorris%2C+Richard+V%3BAshley%2C+James+W%3BGellert%2C+Ralf%3BWehrheim%2C+Simon%3BEbert%2C+Sandro&rft.aulast=Fleischer&rft.aufirst=Iris&rft.date=2011-01-01&rft.volume=46&rft.issue=1&rft.spage=21&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2010.01141.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 62 N1 - PubXState - AR N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2013-01-17 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alloys; aqueous alteration; carbides; chemical weathering; classification; cohenite; iron meteorites; iron oxides; kamacite; landing sites; Mars; Mars Exploration Rover; Meridiani Planum; meteorites; Mossbauer spectra; Opportunity Rover; oxides; phosphides; planets; schreibersite; spectra; taenite; terrestrial planets; water-rock interaction; weathering DO - http://dx.doi.org/10.1111/j.1945-5100.2010.01141.x ER - TY - JOUR T1 - Bounce Rock; a shergottite-like basalt encountered at Meridiani Planum, Mars AN - 1270039025; 2013-010635 AB - The Opportunity rover of the Mars Exploration Rover mission encountered an isolated rock fragment with textural, mineralogical, and chemical properties similar to basaltic shergottites. This finding was confirmed by all rover instruments, and a comprehensive study of these results is reported here. Spectra from the miniature thermal emission spectrometer and the Panoramic Camera reveal a pyroxene-rich mineralogy, which is also evident in Moessbauer spectra and in normative mineralogy derived from bulk chemistry measured by the alpha particle X-ray spectrometer. The correspondence of Bounce Rock's chemical composition with the composition of certain basaltic shergottites, especially Elephant Moraine (EET) 79001 lithology B and Queen Alexandra Range (QUE) 94201, is very close, with only Cl, Fe, and Ti exhibiting deviations. Chemical analyses further demonstrate characteristics typical of Mars such as the Fe/Mn ratio and P concentrations. Possible shock features support the idea that Bounce Rock was ejected from an impact crater, most likely in the Meridiani Planum region. Bopolu crater, 19.3 km in diameter, located 75 km to the southwest could be the source crater. To date, no other rocks of this composition have been encountered by any of the rovers on Mars. The finding of Bounce Rock by the Opportunity rover provides further direct evidence for an origin of basaltic shergottite meteorites from Mars. JF - Meteoritics & Planetary Science AU - Zipfel, Jutta AU - Schroeder, Christian AU - Jolliff, Bradley L AU - Gellert, Ralf AU - Herkenhoff, Kenneth E AU - Rieder, Rudolf AU - Anderson, Robert AU - Bell, James F, III AU - Brueckner, Johannes AU - Crisp, Joy A AU - Christensen, Philip R AU - Clark, Benton C AU - de Souza, Paulo A, Jr AU - Dreibus, Gerlind AU - d'Uston, Claude AU - Economou, Thanasis AU - Gorevan, Steven P AU - Hahn, Brian C AU - Klingelhoefer, Goestar AU - McCoy, Timothy J AU - McSween, Harry Y, Jr AU - Ming, Douglas W AU - Morris, Richard V AU - Rodionov, Daniel S AU - Squyres, Steven W AU - Waenke, Heinrich AU - Wright, Shawn P AU - Wyatt, Michael B AU - Yen, Albert S Y1 - 2011 PY - 2011 DA - 2011 SP - 1 EP - 20 PB - Meteoritical Society, Fayetteville, AR VL - 46 IS - 1 SN - 1086-9379, 1086-9379 KW - volcanic rocks KW - stony meteorites KW - Martian meteorites KW - igneous rocks KW - Mars KW - Elephant Moraine Meteorites KW - SNC Meteorites KW - Mars Exploration Rover KW - meteorites KW - EETA 79001 KW - mineral composition KW - basalts KW - spectra KW - chemical composition KW - Mini-TES KW - Mossbauer spectra KW - Meridiani Planum KW - Opportunity Rover KW - textures KW - Miniature Thermal Emission Spectrometer KW - QUE 94201 KW - achondrites KW - terrestrial planets KW - Bounce Rock KW - planets KW - Antarctica KW - alpha particle X-ray spectra KW - shergottite KW - Queen Alexandra Range Meteorites KW - Panoramic Camera KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1270039025?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Bounce+Rock%3B+a+shergottite-like+basalt+encountered+at+Meridiani+Planum%2C+Mars&rft.au=Zipfel%2C+Jutta%3BSchroeder%2C+Christian%3BJolliff%2C+Bradley+L%3BGellert%2C+Ralf%3BHerkenhoff%2C+Kenneth+E%3BRieder%2C+Rudolf%3BAnderson%2C+Robert%3BBell%2C+James+F%2C+III%3BBrueckner%2C+Johannes%3BCrisp%2C+Joy+A%3BChristensen%2C+Philip+R%3BClark%2C+Benton+C%3Bde+Souza%2C+Paulo+A%2C+Jr%3BDreibus%2C+Gerlind%3Bd%27Uston%2C+Claude%3BEconomou%2C+Thanasis%3BGorevan%2C+Steven+P%3BHahn%2C+Brian+C%3BKlingelhoefer%2C+Goestar%3BMcCoy%2C+Timothy+J%3BMcSween%2C+Harry+Y%2C+Jr%3BMing%2C+Douglas+W%3BMorris%2C+Richard+V%3BRodionov%2C+Daniel+S%3BSquyres%2C+Steven+W%3BWaenke%2C+Heinrich%3BWright%2C+Shawn+P%3BWyatt%2C+Michael+B%3BYen%2C+Albert+S&rft.aulast=Zipfel&rft.aufirst=Jutta&rft.date=2011-01-01&rft.volume=46&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2010.01127.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 73 N1 - PubXState - AR N1 - Document feature - illus. incl. 5 tables, sketch map N1 - Last updated - 2013-04-19 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; alpha particle X-ray spectra; Antarctica; basalts; Bounce Rock; chemical composition; EETA 79001; Elephant Moraine Meteorites; igneous rocks; Mars; Mars Exploration Rover; Martian meteorites; Meridiani Planum; meteorites; mineral composition; Mini-TES; Miniature Thermal Emission Spectrometer; Mossbauer spectra; Opportunity Rover; Panoramic Camera; planets; QUE 94201; Queen Alexandra Range Meteorites; shergottite; SNC Meteorites; spectra; stony meteorites; terrestrial planets; textures; volcanic rocks DO - http://dx.doi.org/10.1111/j.1945-5100.2010.01127.x ER - TY - JOUR T1 - Experimental investigation of the impact fragmentation of blocks embedded in regolith AN - 1270038085; 2013-010644 AB - We present results of a set of impact experiments designed to examine the effects of impacts onto rocky blocks resting on and embedded within regoliths. The targets were approximately 500 g granodiorite blocks, struck with one-eighth inch aluminum spheres at nominal speeds of approximately 5 km s-1. The granodiorite blocks were emplaced in 20-30 grade silica sand to simulate an asteroidal or lunar regolith; block burial depths ranged from resting flush on the surface to submerged completely below the surface. We observe a trend for largest remnant mass to increase with block burial depth. Documentary still image and high-speed video of the resulting block fragments and surrounding regolith reveal new insights into the morphologies of blocks and secondary craters observed on asteroids like 433 Eros. JF - Meteoritics & Planetary Science AU - Durda, Daniel D AU - Chapman, Clark R AU - Cintala, Mark J AU - Flynn, George J AU - Strait, Melissa M AU - Minnick, Anderson Y1 - 2011 PY - 2011 DA - 2011 SP - 149 EP - 155 PB - Meteoritical Society, Fayetteville, AR VL - 46 IS - 1 SN - 1086-9379, 1086-9379 KW - cratering KW - experimental studies KW - near-Earth objects KW - fragmentation KW - impact features KW - Eros Asteroid KW - asteroids KW - near-Earth asteroids KW - igneous rocks KW - video methods KW - secondary craters KW - impacts KW - simulation KW - depth KW - burial KW - morphology KW - plutonic rocks KW - granodiorites KW - velocity KW - S-type asteroids KW - impact craters KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1270038085?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Experimental+investigation+of+the+impact+fragmentation+of+blocks+embedded+in+regolith&rft.au=Durda%2C+Daniel+D%3BChapman%2C+Clark+R%3BCintala%2C+Mark+J%3BFlynn%2C+George+J%3BStrait%2C+Melissa+M%3BMinnick%2C+Anderson&rft.aulast=Durda&rft.aufirst=Daniel&rft.date=2011-01-01&rft.volume=46&rft.issue=1&rft.spage=149&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2010.01163.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 14 N1 - PubXState - AR N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2013-01-17 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - asteroids; burial; cratering; depth; Eros Asteroid; experimental studies; fragmentation; granodiorites; igneous rocks; impact craters; impact features; impacts; morphology; near-Earth asteroids; near-Earth objects; plutonic rocks; regolith; S-type asteroids; secondary craters; simulation; velocity; video methods DO - http://dx.doi.org/10.1111/j.1945-5100.2010.01163.x ER - TY - JOUR T1 - Laboratory annealing experiments of refractory silicate grain analogs using differential scanning calorimetry AN - 1270038055; 2013-010640 AB - Exothermic reactions during the annealing of laboratory synthesized amorphous magnesium-bearing silicate particles used as grain analogs of cosmic dust were detected by differential scanning calorimetry (DSC) in air. With infrared spectroscopy and transmission electron microscopy, we show that cosmic dust could possibly undergo fusion to larger particles, with oxidation of magnesium silicide and crystallization of forsterite as exothermic reactions in the early solar system. The reactions begin at approximately 425, approximately 625, and approximately 1000 K, respectively, and the reaction energies (enthalpies) are at least 727, 4151, and 160.22 J g-1, respectively. During the crystallization of forsterite particles, the spectral evolution of the 10 mu m feature from amorphous to crystalline was observed to begin at lower temperature than the crystallization temperature of 1003 K. During spectral evolution at lower temperature, nucleation and/or the formation of nanocrystallites of forsterite at the surface of the grain analogs was observed. JF - Meteoritics & Planetary Science AU - Kimura, Yuki AU - Nuth, Joseph A, III AU - Tsukamoto, Katsuo AU - Kaito, Chihiro Y1 - 2011 PY - 2011 DA - 2011 SP - 92 EP - 102 PB - Meteoritical Society, Fayetteville, AR VL - 46 IS - 1 SN - 1086-9379, 1086-9379 KW - silicates KW - refractory materials KW - olivine group KW - thermal history KW - temperature KW - infrared spectra KW - laboratory studies KW - enthalpy KW - orthosilicates KW - alloys KW - spectra KW - silicides KW - crystallites KW - calorimetry KW - exothermic reactions KW - experimental studies KW - amorphous materials KW - TEM data KW - forsterite KW - early solar system KW - nesosilicates KW - cosmic dust KW - crystallization KW - differential scanning calorimetry KW - annealing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1270038055?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Laboratory+annealing+experiments+of+refractory+silicate+grain+analogs+using+differential+scanning+calorimetry&rft.au=Kimura%2C+Yuki%3BNuth%2C+Joseph+A%2C+III%3BTsukamoto%2C+Katsuo%3BKaito%2C+Chihiro&rft.aulast=Kimura&rft.aufirst=Yuki&rft.date=2011-01-01&rft.volume=46&rft.issue=1&rft.spage=92&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2010.01143.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 46 N1 - PubXState - AR N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2013-01-17 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alloys; amorphous materials; annealing; calorimetry; cosmic dust; crystallites; crystallization; differential scanning calorimetry; early solar system; enthalpy; exothermic reactions; experimental studies; forsterite; infrared spectra; laboratory studies; nesosilicates; olivine group; orthosilicates; refractory materials; silicates; silicides; spectra; TEM data; temperature; thermal history DO - http://dx.doi.org/10.1111/j.1945-5100.2010.01143.x ER - TY - JOUR T1 - Experimental aqueous alteration of cometary dust AN - 1270037987; 2013-010650 AB - Recent spacecraft missions to comets have reopened a long-standing debate about the histories and origins of cometary materials. Comets contain mixtures of anhydrous minerals and ices seemingly unaffected by planetary processes, yet there are indications of a hydrated silicate component. We have performed aqueous alteration experiments on anhydrous interplanetary dust particles (IDPs) that likely derived from comets. Hydrated silicates rapidly formed from submicrometer amorphous silicates within the IDPs at room temperature in mildly alkaline solution. Hydrated silicates may thus form in the near-surface regions of comets if liquid water is ever present. Our findings provide insight into origins of cometary IDPs containing both anhydrous and hydrated minerals and help reconcile the seemingly inconsistent observations of hydrated silicates from the Stardust and Deep Impact missions. JF - Meteoritics & Planetary Science AU - Nakamura-Messenger, Keiko AU - Clemett, Simon J AU - Messenger, Scott AU - Keller, Lindsay P Y1 - 2011 PY - 2011 DA - 2011 SP - 843 EP - 856 PB - Meteoritical Society, Fayetteville, AR VL - 46 IS - 6 SN - 1086-9379, 1086-9379 KW - water KW - silicates KW - experimental studies KW - Stardust Mission KW - clastic sediments KW - metasomatism KW - interplanetary dust KW - TEM data KW - Deep Impact Mission KW - aqueous alteration KW - hydration KW - cosmic dust KW - comets KW - natural analogs KW - dust KW - sediments KW - sheet silicates KW - hydrothermal alteration KW - cometary dust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1270037987?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Experimental+aqueous+alteration+of+cometary+dust&rft.au=Nakamura-Messenger%2C+Keiko%3BClemett%2C+Simon+J%3BMessenger%2C+Scott%3BKeller%2C+Lindsay+P&rft.aulast=Nakamura-Messenger&rft.aufirst=Keiko&rft.date=2011-01-01&rft.volume=46&rft.issue=6&rft.spage=843&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01197.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 74 N1 - PubXState - AR N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Includes appendices N1 - Last updated - 2013-01-17 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - aqueous alteration; clastic sediments; cometary dust; comets; cosmic dust; Deep Impact Mission; dust; experimental studies; hydration; hydrothermal alteration; interplanetary dust; metasomatism; natural analogs; sediments; sheet silicates; silicates; Stardust Mission; TEM data; water DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01197.x ER - TY - JOUR T1 - Lava likely made river-like channel on Mars AN - 1244686930; 2013-007886 JF - Hydrolink AU - Zubritsky, Elizabeth Y1 - 2011 PY - 2011 DA - 2011 SP - 54 EP - 55 PB - International Association for Hydro-Environment Engineering and Research, Madrid VL - 49 IS - 4, SUPPL. SN - 2220-346X, 2220-346X KW - water KW - imagery KW - meanders KW - THEMIS KW - erosion KW - lava channels KW - channels KW - water erosion KW - Mars KW - erosion features KW - terraces KW - High Resolution Stereo Camera KW - Context Camera KW - terrestrial planets KW - planets KW - lava tubes KW - volcanic features KW - lava KW - Ascraeus Mons KW - surface features KW - fluvial features KW - MOLA KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1244686930?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrolink&rft.atitle=Lava+likely+made+river-like+channel+on+Mars&rft.au=Zubritsky%2C+Elizabeth&rft.aulast=Zubritsky&rft.aufirst=Elizabeth&rft.date=2011-01-01&rft.volume=49&rft.issue=4%2C+SUPPL.&rft.spage=54&rft.isbn=&rft.btitle=&rft.title=Hydrolink&rft.issn=2220346X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2013-01-01 N1 - Document feature - illus. N1 - Last updated - 2013-04-19 N1 - SubjectsTermNotLitGenreText - Ascraeus Mons; channels; Context Camera; erosion; erosion features; fluvial features; High Resolution Stereo Camera; imagery; lava; lava channels; lava tubes; Mars; meanders; MOLA; planets; surface features; terraces; terrestrial planets; THEMIS; volcanic features; water; water erosion ER - TY - JOUR T1 - Correcting rainfall using satellite-based surface soil moisture retrievals; the Soil Moisture Analysis Rainfall Tool (SMART) AN - 1244685918; 2013-007861 AB - Recently, Crow et al. (2009) developed an algorithm for enhancing satellite-based land rainfall products via the assimilation of remotely sensed surface soil moisture retrievals into a water balance model. As a follow-up, this paper describes the benefits of modifying their approach to incorporate more complex data assimilation and land surface modeling methodologies. Specific modifications improving rainfall estimates are assembled into the Soil Moisture Analysis Rainfall Tool (SMART), and the resulting algorithm is applied outside the contiguous United States for the first time, with an emphasis on West African sites instrumented as part of the African Monsoon Multidisciplinary Analysis experiment. Results demonstrate that the SMART algorithm is superior to the Crow et al. baseline approach and is capable of broadly improving coarse-scale rainfall accumulations measurements with low risk of degradation. Comparisons with existing multisensor, satellite-based precipitation data products suggest that the introduction of soil moisture information from the Advanced Microwave Scanning Radiometer via SMART provides as much coarse-scale (3 day, 1 degrees ) rainfall accumulation information as thermal infrared satellite observations and more information than monthly rain gauge observations in poorly instrumented regions. JF - Water Resources Research AU - Crow, W T AU - van den Berg, M J AU - Huffman, G J AU - Pellarin, T Y1 - 2011 PY - 2011 DA - 2011 EP - Citation W08521 PB - American Geophysical Union, Washington, DC VL - 47 IS - 8 SN - 0043-1397, 0043-1397 KW - United States KW - soils KW - hydrology KW - numerical models KW - rainfall KW - moisture KW - geophysical methods KW - techniques KW - equations KW - satellite methods KW - microwave methods KW - West Africa KW - monsoons KW - infrared methods KW - Africa KW - soil-water balance KW - algorithms KW - SMART KW - instruments KW - remote sensing KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1244685918?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Correcting+rainfall+using+satellite-based+surface+soil+moisture+retrievals%3B+the+Soil+Moisture+Analysis+Rainfall+Tool+%28SMART%29&rft.au=Crow%2C+W+T%3Bvan+den+Berg%2C+M+J%3BHuffman%2C+G+J%3BPellarin%2C+T&rft.aulast=Crow&rft.aufirst=W&rft.date=2011-01-01&rft.volume=47&rft.issue=8&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2011WR010576 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2013-01-01 N1 - Number of references - 47 N1 - PubXState - DC N1 - Document feature - illus. incl. 5 tables, sketch map N1 - Last updated - 2012-12-27 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - Africa; algorithms; equations; geophysical methods; hydrology; infrared methods; instruments; microwave methods; moisture; monsoons; numerical models; rainfall; remote sensing; satellite methods; SMART; soil-water balance; soils; techniques; United States; West Africa DO - http://dx.doi.org/10.1029/2011WR010576 ER - TY - JOUR T1 - Transitional oxygenation recorded in the Paleoproterozoic Turee Creek Group, Western Australia AN - 1151912990; 2012-096728 AB - In situ, multiple sulfur isotope data from pyrite in the glaciomarine Meteorite Bore Member of the Paleoproterozoic Turee Creek Group, Western Australia, indicate deposition during a transitional stage in the rise of atmospheric oxygen. Abundant detrital pyrite in one diamictite layer exhibits a range of D (super 33) S (-3.6 to 11.6ppm) encompassing the entire known range for the Archean. Small, but significant, S-MIF (D (super 33) S from -0.8 to 1.0ppm) is preserved in authigenic pyrite throughout the section. A >90ppm range in d (super 34) S(Py) (-45.5 to 46.4ppm VCDT) is strong evidence for vigorous microbial sulfate reduction under non-sulfate limited conditions, an indication that oxidative continental weathering of sulfides was sufficient before and during deposition to deliver a large quantity of sulfate to the ocean. Multiple generations of pyrite were observed, distiguished by their isotopic and minor element compositions. Sharp gradients in d (super 34) S (30ppm over <4 mm; defined by 3 mm spots) constrain the degree of sulfur diffusion during metamorphism and thus the time-temperature history of the unit. This is the first observation of such a large range in d (super 34) S together with significant S-MIF, and it reveals a chapter in the history of atmospheric oxygenation heretofore unknown from similarly age-constrained glacial deposits in North America [1] and South Africa [2]. The new data highlight the critical role of microbial sulfate reduction in the oxidative transition and are consistent with the proposal by Zahnle et al. [3] that increasing seawater sulfate led to the shutdown of the Archean methane greenhouse, curtailing the preservation of S-MIF. However, the suggestion that S-MIF disappears completely before continental glaciation [3] is not supported by our data or those from North America [1] and South Africa [2], and details of the Great Oxidation Event remain to be elucidated. [1] Papineau et al. (2007) EPSL 255, 188-212. [2] Guo et al. (2009) Geology 37, 399-402. [3] Zahnle et al. (2006) Geobiology 4, 271-283. JF - Mineralogical Magazine AU - Williford, Kenneth H AU - Van Kranendonk, Martin J AU - Ushikubo, Takayuki AU - Kozdon, Reinhard AU - Valley, John W AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 2164 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - upper Precambrian KW - oxygen KW - isotopes KW - Paleoproterozoic KW - Western Australia KW - glaciomarine environment KW - authigenic minerals KW - stable isotopes KW - sedimentary rocks KW - diamictite KW - glacial environment KW - Meteorite Bore Member KW - Australia KW - reduction KW - depositional environment KW - geochemistry KW - Precambrian KW - Australasia KW - sulfates KW - isotope ratios KW - paleoatmosphere KW - Proterozoic KW - weathering KW - Turee Creek Group KW - ancient ice ages KW - biogenic processes KW - S-34/S-32 KW - marine environment KW - sulfur KW - pyrite KW - glacial geology KW - sulfides KW - clastic rocks KW - 12:Stratigraphy KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1151912990?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Transitional+oxygenation+recorded+in+the+Paleoproterozoic+Turee+Creek+Group%2C+Western+Australia&rft.au=Williford%2C+Kenneth+H%3BVan+Kranendonk%2C+Martin+J%3BUshikubo%2C+Takayuki%3BKozdon%2C+Reinhard%3BValley%2C+John+W%3BAnonymous&rft.aulast=Williford&rft.aufirst=Kenneth&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=2164&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/2106.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-11-15 N1 - SubjectsTermNotLitGenreText - ancient ice ages; Australasia; Australia; authigenic minerals; biogenic processes; clastic rocks; depositional environment; diamictite; geochemistry; glacial environment; glacial geology; glaciomarine environment; isotope ratios; isotopes; marine environment; Meteorite Bore Member; oxygen; paleoatmosphere; Paleoproterozoic; Precambrian; Proterozoic; pyrite; reduction; S-34/S-32; sedimentary rocks; stable isotopes; sulfates; sulfides; sulfur; Turee Creek Group; upper Precambrian; weathering; Western Australia ER - TY - JOUR T1 - Fertilization potential of volcanic dust in the low-nutrient low-chlorophyll western North Pacific subtropical gyre; satellite evidence and laboratory study AN - 1151911281; 2012-097655 AB - In the western North Pacific subtropical ocean, the Anatahan volcano of the Mariana Islands erupted on 10 May 2003 for the first time in recorded history. Based on nine different types of remote sensing data provided by NASA, laboratory experiment of the Anatahan samples, and a 3-D ocean circulation model developed by the U.S. Naval Research Laboratory, the postvolcanic ocean biogeochemical response to the Anatahan eruption was explored. It was observed that soon after the eruption, the aerosol optical depth abruptly increased from the pre-eruption loading of approximately 0.1 to approximately 2. In the week following the eruption, a "bloom-like" patch was observed by NASA's Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) ocean color sensor. Based on the chlorophyll a, fluorescence line height (FLH), at-sensor total radiance, and normalized water-leaving radiance data obtained by MODIS, the cause of the bloom-like patch was diagnosed. The results suggest that the patch was most likely a mixture of suspended volcanic particles and a phytoplankton bloom. FLH was found to be approximately 9-17 X 10 (super -3) mW cm (super -2) mu m (super -1) sr (super -1) in the patch and approximately 3-5 X 10 (super -3) mW cm (super -2) mu m (super -1) sr (super -1) in the ambient water, indicating that a 2-5-fold increase in biological activity occurred during the week following the eruption. Satellite altimetry indicated that the bloom took place in the presence of downwelling and was not a result of upwelled nutrients in this oligotrophic ocean. Analysis of satellite ocean color spectra of the bloom region found similar spectra as the reference Trichodesmium spectra. Laboratory experiments further substantiate the satellite observations which show elevated concentrations of limiting nutrients provided by the Anatahan samples, and the averaged soluble nitrate, phosphate, and Fe were 42, 3.1, and 2.0 nM, respectively. Though it was not possible to obtain in situ observations of the ocean biogeochemical responses that followed the Anatahan eruption, this study provided evidence based on remote sensing data and laboratory experiment that fertilization of volcanic aerosols occurred following this eruption in one of the most oligotrophic low-nutrient low-chlorophyll ocean deserts on Earth. JF - Global Biogeochemical Cycles AU - Lin, I I AU - Hu, Chuanmin AU - Li, Yuan-Hui AU - Ho, Tung-Yuan AU - Fischer, Tobias P AU - Wong, George T F AU - Wu, Jingfeng AU - Huang, Chih-Wei AU - Chu, D Allen AU - Ko, Dong S AU - Chen, Jen-Ping Y1 - 2011 PY - 2011 DA - 2011 EP - Citation GB1006 PB - American Geophysical Union, Washington, DC VL - 25 SN - 0886-6236, 0886-6236 KW - volcanic rocks KW - igneous rocks KW - government agencies KW - techniques KW - West Pacific KW - laboratory studies KW - sediments KW - Micronesia KW - subtropical environment KW - porphyrins KW - volcanic ash KW - Northwest Pacific KW - Northern Mariana Islands KW - Mariana Islands KW - experimental studies KW - clastic sediments KW - pigments KW - satellite methods KW - geochemical cycle KW - chlorophyll KW - Anatahan KW - pyroclastics KW - organic compounds KW - fertilization KW - North Pacific KW - NASA KW - eruptions KW - Pacific Ocean KW - dust KW - Oceania KW - volcanoes KW - aerosols KW - instruments KW - remote sensing KW - MODIS KW - 07:Oceanography KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1151911281?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Global+Biogeochemical+Cycles&rft.atitle=Fertilization+potential+of+volcanic+dust+in+the+low-nutrient+low-chlorophyll+western+North+Pacific+subtropical+gyre%3B+satellite+evidence+and+laboratory+study&rft.au=Lin%2C+I+I%3BHu%2C+Chuanmin%3BLi%2C+Yuan-Hui%3BHo%2C+Tung-Yuan%3BFischer%2C+Tobias+P%3BWong%2C+George+T+F%3BWu%2C+Jingfeng%3BHuang%2C+Chih-Wei%3BChu%2C+D+Allen%3BKo%2C+Dong+S%3BChen%2C+Jen-Ping&rft.aulast=Lin&rft.aufirst=I&rft.date=2011-01-01&rft.volume=25&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Global+Biogeochemical+Cycles&rft.issn=08866236&rft_id=info:doi/10.1029%2F2009GB003758 L2 - http://www.agu.org/journals/gb/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 68 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-11-15 N1 - SubjectsTermNotLitGenreText - aerosols; Anatahan; chlorophyll; clastic sediments; dust; eruptions; experimental studies; fertilization; geochemical cycle; government agencies; igneous rocks; instruments; laboratory studies; Mariana Islands; Micronesia; MODIS; NASA; North Pacific; Northern Mariana Islands; Northwest Pacific; Oceania; organic compounds; Pacific Ocean; pigments; porphyrins; pyroclastics; remote sensing; satellite methods; sediments; subtropical environment; techniques; volcanic ash; volcanic rocks; volcanoes; West Pacific DO - http://dx.doi.org/10.1029/2009GB003758 ER - TY - JOUR T1 - Deciphering mafic and felsic lunar magmatic events; insight from zircon AN - 1112675570; 2012-091283 AB - Microstructural studies of zircon grains from lunar breccia samples, combining high resolution imaging together with in-situ U-Th-Pb analyses, has allowed us to distinguish primary zircon, formed by igneous crystallisation in plutonic rocks, and secondary, impact-related, features in zircon grains. Dating of these grains can be used to identify multiple igneous and impact events. For example, a single impact melt breccia from the Apollo 17 landing site contains grains that record more than 3 igneous events in addition to 3 distinct impact events, indicating that the region sampled by this breccia probably significantly exceeds the area of the landing site. As a result, the study of primary zircon ages in the available samples can be used to investigate the temporal distribution of plutonic magmatism on the Moon, even though these samples were collected from the relatively small areas covered by the lunar landing missions. The study of primary zircons containing inclusions of rock-forming minerals or zircons preserved in lithic clasts found in lunar breccias also provides an opportunity to place temporal constraints on the different types of plutonic magmatism on the Moon. U and Th concentrations of these zircon grains vary systematically allowing clear separation of zircons formed in mafic rocks, such as anorthosite, norite, and gabbro-norite, from those formed in felsic rocks (i.e. granophyre and felsite). This chemical variation can be used to determine plutonic hosts of zircon grains found as mineral clasts in the breccia samples and as loose grains in lunar soils, expanding significantly the number of zircons with known origin. A comparison of ages of zircons originating from mafic and felsic host rocks suggests a possible age difference between these two chemical rock groups. If confirmed by further analyses this would indicate that the two current explanations for the formation of felsic rocks on the Moon, (i) as residual melt left after extreme fractionation of basaltic magma or (ii) as a result of liquid immiscibility during late stages of fractionation of basaltic melts, are incorrect. Both mechanisms imply close temporal relationships between mafic and felsic rocks, which does not appear to be supported by the available U-Pb ages. JF - Mineralogical Magazine AU - Grange, M L AU - Nemchin, A A AU - Timms, N AU - Pidgeon, R T AU - Meyer, C AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 942 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - zircon group KW - silicates KW - breccia KW - impactites KW - Moon KW - acidic magmas KW - zircon KW - lunar breccia KW - crystal structure KW - impact breccia KW - impacts KW - nesosilicates KW - mineral inclusions KW - ultrastructure KW - U/Th/Pb KW - magmas KW - metamorphic rocks KW - inclusions KW - orthosilicates KW - absolute age KW - mafic magmas KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1112675570?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Deciphering+mafic+and+felsic+lunar+magmatic+events%3B+insight+from+zircon&rft.au=Grange%2C+M+L%3BNemchin%2C+A+A%3BTimms%2C+N%3BPidgeon%2C+R+T%3BMeyer%2C+C%3BAnonymous&rft.aulast=Grange&rft.aufirst=M&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=942&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/878.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-10-18 N1 - SubjectsTermNotLitGenreText - absolute age; acidic magmas; breccia; crystal structure; impact breccia; impactites; impacts; inclusions; lunar breccia; mafic magmas; magmas; metamorphic rocks; mineral inclusions; Moon; nesosilicates; orthosilicates; silicates; U/Th/Pb; ultrastructure; zircon; zircon group ER - TY - JOUR T1 - Martian magmatic volatiles recorded in olivine-bearing melt inclusions and matrix of shergottite Y-980459 AN - 1112672415; 2012-087338 AB - Martian basaltic meteorites [shergottites] contain a wealth of information about Mars. Of particular interest is the geochemical record contained in melt inclusions from the most primitive shergottite, Yamato 980459 (Y98). Using polished sections of Y98 mounted in indium to avoid volatile contamination from epoxy, our ion- and electron-microprobe study aims to constrain the volatile contents of primary Martian magmas generated by mantle melting. This record is also used to track the subsequent melt evolution of shergottite magmas. We report preliminary results for volatile abundances (H (sub 2) O, CO (sub 2) , S, Cl, F) in olivine-hosted melt inclusions (MI) and groundmass glasses (GG). Unlike other shergottites, MIs in Y98 have remained glassy because of rapid cooling following eruption. Volatile concentrations of MI and GG in Y98 were analyzed by a Cameca ims-6f at DTM following the techniques of [1]. MIs contain distinctly higher contents of H (sub 2) O ( approximately 200 ppm) and CO (sub 2) (600-1600 ppm) than GGs ( H (sub 2) O (>80%) > Cl (50-70%) > F ( approximately 0%) nearly equal S ( approximately 0%, probably saturated with sulfide). Likewise, we estimate that the bulk Y98 liquid contained <30 ppm H (sub 2) O, 200-500 ppm CO (sub 2) , approximately 20 ppm Cl, approximately 5 ppm F, and approximately 300 ppm S. JF - Mineralogical Magazine AU - Jones, J H AU - Usui, T AU - Alexander, C M O'D AU - Wang, J AU - Simon, J I AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1124 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - silicates KW - stony meteorites KW - ion probe data KW - Martian meteorites KW - mass spectra KW - olivine group KW - melt inclusions KW - electron probe data KW - SNC Meteorites KW - meteorites KW - laboratory studies KW - olivine KW - inclusions KW - orthosilicates KW - spectra KW - glass materials KW - Yamato Meteorites KW - experimental studies KW - matrix KW - achondrites KW - nesosilicates KW - volatiles KW - Antarctica KW - shergottite KW - magmas KW - fluid inclusions KW - Y 980549 KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1112672415?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Martian+magmatic+volatiles+recorded+in+olivine-bearing+melt+inclusions+and+matrix+of+shergottite+Y-980459&rft.au=Jones%2C+J+H%3BUsui%2C+T%3BAlexander%2C+C+M+O%27D%3BWang%2C+J%3BSimon%2C+J+I%3BAnonymous&rft.aulast=Jones&rft.aufirst=J&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1124&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1092.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Number of references - 2 N1 - Last updated - 2012-10-18 N1 - SubjectsTermNotLitGenreText - achondrites; Antarctica; electron probe data; experimental studies; fluid inclusions; glass materials; inclusions; ion probe data; laboratory studies; magmas; Martian meteorites; mass spectra; matrix; melt inclusions; meteorites; nesosilicates; olivine; olivine group; orthosilicates; shergottite; silicates; SNC Meteorites; spectra; stony meteorites; volatiles; Y 980549; Yamato Meteorites ER - TY - JOUR T1 - Long term aerosol trends over large global urban centres AN - 1112671778; 2012-091314 AB - Aerosol Optical Depth (AOD) retrieved from MODIS and MISR sensors onboard EOS Terra satellite over the last decade (2001-2010) has been utilized to analyze aerosols trends over global megacities. Analysis provides an assessment of retrieval capabilities of these sensors. Level 2 data sets have been carefully analyzed over selected urban centers to understand the retrieval capabilities of these two sensors over complex urban surfaces. Areas over each urban center have been identified, where MODIS operational algorithm is unable to retrieve AOD due to limitation of dark target approach. MISR aerosol product has been used to identify dominating aerosol size distribution and type, as function of seasons. Spatial gradient in AOD within and around the city has been estimated as well. Impact of spatial and temporal averaging over long term trends will also be addressed. JF - Mineralogical Magazine AU - Gupta, Pawan AU - Khan, Maudood N AU - da Silva, Arlindo AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 957 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - Pakistan KW - pollution KW - atmosphere KW - urban environment KW - observations KW - air pollution KW - case studies KW - Earth Observing System KW - Indian Peninsula KW - Karachi Pakistan KW - aerosols KW - Asia KW - remote sensing KW - MODIS KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1112671778?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Long+term+aerosol+trends+over+large+global+urban+centres&rft.au=Gupta%2C+Pawan%3BKhan%2C+Maudood+N%3Bda+Silva%2C+Arlindo%3BAnonymous&rft.aulast=Gupta&rft.aufirst=Pawan&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=957&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/878.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Document feature - sketch map N1 - Last updated - 2012-10-18 N1 - SubjectsTermNotLitGenreText - aerosols; air pollution; Asia; atmosphere; case studies; Earth Observing System; Indian Peninsula; Karachi Pakistan; MODIS; observations; Pakistan; pollution; remote sensing; urban environment ER - TY - JOUR T1 - Comparison of Diviner Lunar Radiometer observations of Apollo sites and Apollo soils measured in simulated lunar environment AN - 1112670087; 2012-091288 AB - The Diviner Lunar Radiometer (Diviner), onboard NASA's Lunar Reconnaissance Orbiter, has made the first direct global measurements of lunar silicate mineralogy using multispectral thermal emission mapping. Diviner has three spectral channels near 8 mu m designed to characterize the Christiansen feature (mid-infrared emissivity maximum), which systematically shifts to shorter wavelengths with increasing silicate polymerization. Only laboratory experiments conducted in simulated lunar environment (SLE) are directly comparable to Diviner data. The Lunar Thermal Environment Simulator at University of Oxford's Atmospheric, Oceanic, and Planetary Physics Laboratory is uniquely capable of measuring thermal emission of samples in SLE. In the lunar environment, large thermal gradients develop in the top few hundred microns of the surface, driven by the difference in the solar and thermal skin depths (i.e. the surface is heated to greater depth than the infrared emitting layer). The thermal gradients generally result in a significant enhancement of Christiansen feature spectral contrast and significant decreases in Reststrahlen Bands spectral contrast. Diviner observations include all six Apollo sites at approximately 200 m spatial resolution. Spectral differences between the Apollo sites caused by composition and space weathering are apparent in Diviner data. Since the compositions of Apollo soils are known, the Apollo sites are important calibration points for the Diviner dataset. This presentation will include the first comparison of Diviner observations of Apollo sites and spectra of Apollo soils measured in SLE. JF - Mineralogical Magazine AU - Greenhagen, Benjamin T AU - Thomas, I R AU - Bowles, N E AU - Allen, C C AU - Donaldson Hanna, K L AU - Foote, E J AU - Paige, D A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 944 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - experimental studies KW - Moon KW - Lunar Reconnaissance Orbiter KW - analog simulation KW - Diviner Lunar Radiometer KW - calibration KW - Apollo Program KW - landing sites KW - laboratory studies KW - thermal emission KW - orbital observations KW - instruments KW - lunar soils KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1112670087?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Comparison+of+Diviner+Lunar+Radiometer+observations+of+Apollo+sites+and+Apollo+soils+measured+in+simulated+lunar+environment&rft.au=Greenhagen%2C+Benjamin+T%3BThomas%2C+I+R%3BBowles%2C+N+E%3BAllen%2C+C+C%3BDonaldson+Hanna%2C+K+L%3BFoote%2C+E+J%3BPaige%2C+D+A%3BAnonymous&rft.aulast=Greenhagen&rft.aufirst=Benjamin&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=944&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/878.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - Last updated - 2012-10-18 N1 - SubjectsTermNotLitGenreText - analog simulation; Apollo Program; calibration; Diviner Lunar Radiometer; experimental studies; instruments; laboratory studies; landing sites; Lunar Reconnaissance Orbiter; lunar soils; Moon; orbital observations; thermal emission ER - TY - JOUR T1 - A sensitivity study on the effects of particle chemistry, asphericity and size on the mass extinction efficiency of mineral dust in the Earth's atmosphere; from the near to thermal IR AN - 1112669888; 2012-091192 AB - To determine a plausible range of mass extinction efficiencies (MEE) of terrestrial atmospheric dust from the near to thermal IR, sensitivity analyses are performed over an extended range of dust microphysical and chemistry perturbations. The IR values are subsequently compared to those in the near-IR, to evaluate spectral relationships in their optical properties. Synthesized size distributions consistent with measurements, model particle size, while composition is defined by the refractive indices of minerals routinely observed in dust, including the widely used OPAC/Hess parameterization. Single-scattering properties of representative dust particle shapes are calculated using the T-matrix, Discrete Dipole Approximation and Lorenz-Mie light-scattering codes. For the parameterizations examined, MEE ranges from nearly zero to 1.2 m (super 2) g (super -1) , with the higher values associated with non-spheres composed of quartz and gypsum. At near-IR wavelengths, MEE for non-spheres generally exceeds those for spheres, while in the thermal IR, shape-induced changes in MEE strongly depend on volume median diameter (VMD) and wavelength, particularly for MEE evaluated at the mineral resonant frequencies. MEE spectral distributions appear to follow particle geometry and are evidence for shape dependency in the optical properties. It is also shown that non-spheres best reproduce the positions of prominent absorption peaks found in silicates. Generally, angular particles exhibit wider and more symmetric MEE spectral distribution patterns from 8-10 mu m than those with smooth surfaces, likely due to their edge-effects. Lastly, MEE ratios allow for inferring dust optical properties across the visible-IR spectrum. We conclude the MEE of dust aerosol are significant for the parameter space investigated, and are a key component for remote sensing applications and the study of direct aerosol radiative effects. JF - Atmospheric Chemistry and Physics AU - Hansell, Richard A, Jr AU - Reid, J S AU - Tsay, Si-Chee AU - Roush, Ted L AU - Kalashnikova, Olga V Y1 - 2011 PY - 2011 DA - 2011 SP - 1527 EP - 1547 PB - Copernicus, Katlenburg-Lindau VL - 11 IS - 4 SN - 1680-7316, 1680-7316 KW - silicates KW - near-infrared spectra KW - silica minerals KW - variations KW - infrared spectra KW - transport KW - sensitivity analysis KW - gypsum KW - sediments KW - composition KW - framework silicates KW - spectra KW - chemical composition KW - geochemistry KW - sulfates KW - clastic sediments KW - grain size KW - atmosphere KW - wavelength KW - optical properties KW - atmospheric transport KW - dust KW - solar radiation KW - quartz KW - aerosols KW - mass extinctions KW - refractive index KW - particles KW - remote sensing KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1112669888?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Chemistry+and+Physics&rft.atitle=A+sensitivity+study+on+the+effects+of+particle+chemistry%2C+asphericity+and+size+on+the+mass+extinction+efficiency+of+mineral+dust+in+the+Earth%27s+atmosphere%3B+from+the+near+to+thermal+IR&rft.au=Hansell%2C+Richard+A%2C+Jr%3BReid%2C+J+S%3BTsay%2C+Si-Chee%3BRoush%2C+Ted+L%3BKalashnikova%2C+Olga+V&rft.aulast=Hansell&rft.aufirst=Richard&rft.date=2011-01-01&rft.volume=11&rft.issue=4&rft.spage=1527&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics&rft.issn=16807316&rft_id=info:doi/ L2 - http://www.atmos-chem-phys.net/11/1527/2011/acp-11-1527-2011.pdf http://www.copernicus.org/EGS/acp/index.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Date revised - 2012-01-01 N1 - Number of references - 80 N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Includes supplement, http://www.atmos-chem-phys.net/11/1527/2011/acp-11-1527-2011-supplement. pdf; published in Atmospheric Chemistry and Physics Discussion: 14 July 2010, http://www.atmos-chem-phys-discuss.net/10/17213/2010/acpd-10-17213-2010. html; accessed in Aug., 2012 N1 - Last updated - 2012-10-18 N1 - SubjectsTermNotLitGenreText - aerosols; atmosphere; atmospheric transport; chemical composition; clastic sediments; composition; dust; framework silicates; geochemistry; grain size; gypsum; infrared spectra; mass extinctions; near-infrared spectra; optical properties; particles; quartz; refractive index; remote sensing; sediments; sensitivity analysis; silica minerals; silicates; solar radiation; spectra; sulfates; transport; variations; wavelength ER - TY - JOUR T1 - Getting around Antarctica; new high-resolution mappings of the grounded and freely-floating boundaries of the Antarctic ice sheet created for the International Polar Year AN - 1080610099; 2012-085151 AB - Two ice-dynamic transitions of the Antarctic ice sheet - the boundary of grounded ice features and the freely-floating boundary - are mapped at 15-m resolution by participants of the International Polar Year project ASAID using customized software combining Landsat-7 imagery and ICESat/GLAS laser altimetry. The grounded ice boundary is 53 610 km long; 74% abuts to floating ice shelves or outlet glaciers, 19% is adjacent to open or sea-ice covered ocean, and 7% of the boundary ice terminates on land. The freely-floating boundary, called here the hydrostatic line, is the most landward position on ice shelves that expresses the full amplitude of oscillating ocean tides. It extends 27 521 km and is discontinuous. Positional (one-sigma) accuracies of the grounded ice boundary vary an order of magnitude ranging from + or -52 m for the land and open-ocean terminating segments to + or -502 m for the outlet glaciers. The hydrostatic line is less well positioned with errors over 2 km. Elevations along each line are selected from 6 candidate digital elevation models based on their agreement with ICESat elevation values and surface shape inferred from the Landsat imagery. Elevations along the hydrostatic line are converted to ice thicknesses by applying a firn-correction factor and a flotation criterion. BEDMAP-compiled data and other airborne data are compared to the ASAID elevations and ice thicknesses to arrive at quantitative (one-sigma) uncertainties of surface elevations of + or -3.6, + or -9.6, + or -11.4, + or -30 and + or -100 m for five ASAID-assigned confidence levels. Over one-half of the surface elevations along the grounded ice boundary and over one-third of the hydrostatic line elevations are ranked in the highest two confidence categories. A comparison between ASAID-calculated ice shelf thicknesses and BEDMAP-compiled data indicate a thin-ice bias of 41.2 + or - 71.3 m for the ASAID ice thicknesses. The relationship between the seaward offset of the hydrostatic line from the grounded ice boundary only weakly matches a prediction based on beam theory. The mapped products along with the customized software to generate them and a variety of intermediate products are available from the National Snow and Ice Data Center. JF - The Cryosphere (Online) AU - Bindschadler, R AU - Choi, H AU - Wichlacz, A AU - Bingham, R AU - Bohlander, J AU - Brunt, K AU - Corr, H AU - Drews, R AU - Fricker, H AU - Hall, M AU - Hindmarsh, R AU - Kohler, J AU - Padman, L AU - Rack, W AU - Rotschky, G AU - Urbini, S AU - Vornberger, P AU - Young, N Y1 - 2011 PY - 2011 DA - 2011 SP - 569 EP - 588 PB - Copernicus on behalf of the European Geosciences Union, Katlenburg-Lindau VL - 5 IS - 3 KW - Southern Ocean KW - laser methods KW - ice cover thickness KW - International Polar Year 2007-08 KW - data processing KW - ice cover KW - ice shelves KW - Bakutis Coast KW - digital terrain models KW - Scott Peninsula KW - IPY 2007-08 Research Publications KW - ice KW - Princess Martha Coast KW - ocean circulation KW - Ekstrom ice shelf KW - ICESat KW - altimetry KW - satellite methods KW - ice sheets KW - tides KW - computer programs KW - Antarctic ice sheet KW - Landsat KW - Antarctica KW - glacial geology KW - remote sensing KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1080610099?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Cryosphere+%28Online%29&rft.atitle=Getting+around+Antarctica%3B+new+high-resolution+mappings+of+the+grounded+and+freely-floating+boundaries+of+the+Antarctic+ice+sheet+created+for+the+International+Polar+Year&rft.au=Bindschadler%2C+R%3BChoi%2C+H%3BWichlacz%2C+A%3BBingham%2C+R%3BBohlander%2C+J%3BBrunt%2C+K%3BCorr%2C+H%3BDrews%2C+R%3BFricker%2C+H%3BHall%2C+M%3BHindmarsh%2C+R%3BKohler%2C+J%3BPadman%2C+L%3BRack%2C+W%3BRotschky%2C+G%3BUrbini%2C+S%3BVornberger%2C+P%3BYoung%2C+N&rft.aulast=Bindschadler&rft.aufirst=R&rft.date=2011-01-01&rft.volume=5&rft.issue=3&rft.spage=569&rft.isbn=&rft.btitle=&rft.title=The+Cryosphere+%28Online%29&rft.issn=1994-0424&rft_id=info:doi/ L2 - http://www.the-cryosphere.net/5/569/2011/tc-5-569-2011.pdf http://www.the-cryosphere.net/volumes_and_issues.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Date revised - 2012-01-01 N1 - Number of references - 35 N1 - Document feature - illus. incl. 5 tables, sketch map N1 - Last updated - 2012-09-27 N1 - SubjectsTermNotLitGenreText - altimetry; Antarctic ice sheet; Antarctica; Bakutis Coast; computer programs; data processing; digital terrain models; Ekstrom ice shelf; glacial geology; ice; ice cover; ice cover thickness; ice sheets; ice shelves; ICESat; International Polar Year 2007-08; IPY 2007-08 Research Publications; Landsat; laser methods; ocean circulation; Princess Martha Coast; remote sensing; satellite methods; Scott Peninsula; Southern Ocean; tides ER - TY - JOUR T1 - Links between acceleration, melting, and supraglacial lake drainage of the western Greenland ice sheet AN - 1080607712; 2012-083341 AB - The impact of increasing summer melt on the dynamics and stability of the Greenland Ice Sheet is not fully understood. Mounting evidence suggests seasonal evolution of subglacial drainage mitigates or counteracts the ability of surface runoff to increase basal sliding. Here, we compare subdaily ice velocity and uplift derived from nine Global Positioning System stations in the upper ablation zone in west Greenland to surface melt and supraglacial lake drainage during summer 2007. Starting around day 173, we observe speedups of 6-41% above spring velocity lasting approximately 40 days accompanied by sustained surface uplift at most stations, followed by a late summer slowdown. After initial speedup, we see a spatially uniform velocity response across the ablation zone and strong diurnal velocity variations during periods of melting. Most lake drainages were undetectable in the velocity record, and those that were detected only perturbed velocities for approximately 1 day, suggesting preexisting drainage systems could efficiently drain large volumes of water. The dynamic response to melt forcing appears to (1) be driven by changes in subglacial storage of water that is delivered in diurnal and episodic pulses, and (2) decrease over the course of the summer, presumably as the subglacial drainage system evolves to greater efficiency. The relationship between hydrology and ice dynamics observed is similar to that observed on mountain glaciers, suggesting that seasonally large water pressures under the ice sheet largely compensate for the greater ice thickness considered here. Thus, increases in summer melting may not guarantee faster seasonal ice flow. JF - Journal of Geophysical Research AU - Hoffman, M J AU - Catania, G A AU - Neumann, T A AU - Andrews, L C AU - Rumrill, J A Y1 - 2011 PY - 2011 DA - 2011 EP - Citation F04035 PB - American Geophysical Union, Washington, DC VL - 116 IS - F4 SN - 0148-0227, 0148-0227 KW - hydrology KW - Arctic region KW - lakes KW - Greenland ice sheet KW - West Greenland KW - ice cover KW - glaciers KW - glacial features KW - satellite methods KW - ice sheets KW - temperature KW - ice movement KW - Greenland KW - melting KW - ice KW - glacial geology KW - remote sensing KW - meltwater KW - ice cover distribution KW - glacial lakes KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1080607712?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Links+between+acceleration%2C+melting%2C+and+supraglacial+lake+drainage+of+the+western+Greenland+ice+sheet&rft.au=Hoffman%2C+M+J%3BCatania%2C+G+A%3BNeumann%2C+T+A%3BAndrews%2C+L+C%3BRumrill%2C+J+A&rft.aulast=Hoffman&rft.aufirst=M&rft.date=2011-01-01&rft.volume=116&rft.issue=F4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JF001934 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 45 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables, geol. sketch map N1 - Last updated - 2012-09-27 N1 - SubjectsTermNotLitGenreText - Arctic region; glacial features; glacial geology; glacial lakes; glaciers; Greenland; Greenland ice sheet; hydrology; ice; ice cover; ice cover distribution; ice movement; ice sheets; lakes; melting; meltwater; remote sensing; satellite methods; temperature; West Greenland DO - http://dx.doi.org/10.1029/2010JF001934 ER - TY - JOUR T1 - Patterns of CO (sub 2) and radiocarbon across high northern latitudes during International Polar Year 2008 AN - 1039340232; 2012-081259 AB - High-resolution in situ CO (sub 2) measurements were conducted aboard the NASA DC-8 aircraft during the ARCTAS/POLARCAT field campaign, a component of the wider 2007-2008 International Polar Year activities. Data were recorded during large-scale surveys spanning the North American sub-Arctic to the North Pole from 0.04 to 12 km altitude in spring and summer of 2008. Influences on the observed CO (sub 2) concentrations were investigated using coincident CO, black carbon, CH (sub 3) CN, HCN, O (sub 3) , C (sub 2) Cl (sub 4) , and Delta (super 14) CO (sub 2) data, and the FLEXPART model. In spring, the CO (sub 2) spatial distribution from 55 degrees N to 90 degrees N was largely determined by the long-range transport of air masses laden with Asian anthropogenic pollution intermingled with Eurasian fire emissions evidenced by the greater variability in the mid-to-upper troposphere. At the receptor site, the enhancement ratios of CO (sub 2) to CO in pollution plumes ranged from 27 to 80 ppmv ppmv (super -1) with the highest anthropogenic content registered in plumes sampled poleward of 80 degrees N. In summer, the CO (sub 2) signal largely reflected emissions from lightning-ignited wildfires within the boreal forests of northern Saskatchewan juxtaposed with uptake by the terrestrial biosphere. Measurements within fresh fire plumes yielded CO (sub 2) to CO emission ratios of 4 to 16 ppmv ppmv (super -1) and a mean CO (sub 2) emission factor of 1698 + or - 280 g kg (super -1) dry matter. From the (super 14) C in CO (sub 2) content of 48 whole air samples, mean spring (46.6 + or - 4.4 ppm) and summer (51.5 + or - 5 ppm) Delta (super 14) CO (sub 2) values indicate a 5 ppm seasonal difference. Although the northern midlatitudes were identified as the emissions source regions for the majority of the spring samples, depleted Delta (super 14) CO (sub 2) values were observed in <1% of the data set. Rather, ARCTAS Delta (super 14) CO (sub 2) observations (54%) revealed predominately a pattern of positive disequilibrium (1-7 ppm) with respect to background regardless of season owing to both heterotrophic respiration and fire-induced combustion of biomass. Anomalously enriched Delta (super 14) CO (sub 2) values (101-262 ppm) measured in emissions from Lake Athabasca and Eurasian fires speak to biomass burning as an increasingly important contributor to the mass excess in Delta (super 14) CO (sub 2) observations in a warming Arctic, representing an additional source of uncertainty in the quantification of fossil fuel CO (sub 2) . JF - Journal of Geophysical Research AU - Vay, S A AU - Choi, Y AU - Vadrevu, K P AU - Blake, D R AU - Tyler, S C AU - Wisthaler, A AU - Hecobian, A AU - Kondo, Y AU - Diskin, G S AU - Sachse, G W AU - Woo, J H AU - Weinheimer, A J AU - Burkhart, J F AU - Stohl, A AU - Wennberg, P O Y1 - 2011 PY - 2011 DA - 2011 EP - Citation D14301 PB - American Geophysical Union, Washington, DC VL - 116 IS - D14 SN - 0148-0227, 0148-0227 KW - isotopes KW - International Polar Year 2007-08 KW - human activity KW - Arctic region KW - atmosphere KW - subarctic regions KW - IPY 2007-08 Research Publications KW - geochemical cycle KW - carbon dioxide KW - carbon monoxide KW - atmospheric circulation KW - radioactive isotopes KW - black carbon KW - carbon KW - Arctic Ocean KW - Northern Hemisphere KW - carbon cycle KW - C-14 KW - chemical composition KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1039340232?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Patterns+of+CO+%28sub+2%29+and+radiocarbon+across+high+northern+latitudes+during+International+Polar+Year+2008&rft.au=Vay%2C+S+A%3BChoi%2C+Y%3BVadrevu%2C+K+P%3BBlake%2C+D+R%3BTyler%2C+S+C%3BWisthaler%2C+A%3BHecobian%2C+A%3BKondo%2C+Y%3BDiskin%2C+G+S%3BSachse%2C+G+W%3BWoo%2C+J+H%3BWeinheimer%2C+A+J%3BBurkhart%2C+J+F%3BStohl%2C+A%3BWennberg%2C+P+O&rft.aulast=Vay&rft.aufirst=S&rft.date=2011-01-01&rft.volume=116&rft.issue=D14&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2011JD015643 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 45 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-09-14 N1 - SubjectsTermNotLitGenreText - Arctic Ocean; Arctic region; atmosphere; atmospheric circulation; black carbon; C-14; carbon; carbon cycle; carbon dioxide; carbon monoxide; chemical composition; geochemical cycle; human activity; International Polar Year 2007-08; IPY 2007-08 Research Publications; isotopes; Northern Hemisphere; radioactive isotopes; subarctic regions DO - http://dx.doi.org/10.1029/2011JD015643 ER - TY - JOUR T1 - Possible link between irrigation in the U.S. High Plains and increased summer streamflow in the Midwest AN - 1039338612; 2012-081114 AB - We have previously presented evidence that higher rates of evapotranspiration (ET) associated with irrigation in the U.S. High Plains has likely caused an increased downwind precipitation (P). July P over the Midwest increased by 20%-30% from the preirrigation period (1900-1950) to the postirrigation (1950-2000) period. In this study, we test the hypothesis that the increased July P has had hydrologic consequences, possibly increasing groundwater storage and streamflow. Seasonal analyses of hydrologic variables over Illinois suggest that the water table and streamflow response lags P - ET by 1-2 months, indicating August and September as the months when the increased July P may be detected. We analyzed long-term observations of water table depth at 10 wells in Illinois and streamflow at 46 gauges in Illinois-Ohio basins. The Mann-Kendal test for trends suggests field significant increases in groundwater storage and streamflow in August-September over the period of irrigation expansion. Examination of soil moisture response to present-day above-normal July P suggests that the increased July P can reach the water table in normal to wet years. Mann-Kendall tests suggest that there has been no change in pan evaporation and atmospheric vapor pressure deficit. This implies that soil water availability is the driver of changes in ET, and the increased P may have possibly increased ET. Other studies in the literature give further evidence of increased ET due to increased P. By ruling out a reduction in ET, we suggest that the observed increase in groundwater storage and streamflow in the Midwest is linked to the increased July precipitation attributed to High Plains irrigation. We note that the increases in late summer streamflow are rather small when placed in the context of seasonal dynamics, but they are conceptually important in that they point to a different cause of change. JF - Water Resources Research AU - Kustu, M Deniz AU - Fan, Ying AU - Rodell, Matthew Y1 - 2011 PY - 2011 DA - 2011 EP - Citation W03522 PB - American Geophysical Union, Washington, DC VL - 47 IS - 3 SN - 0043-1397, 0043-1397 KW - United States KW - soils KW - hydrology KW - North America KW - rainfall KW - moisture KW - unsaturated zone KW - irrigation KW - ground water KW - Illinois River basin KW - water table KW - streamflow KW - precipitation KW - Ohio River basin KW - Great Plains KW - Midwest KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1039338612?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Possible+link+between+irrigation+in+the+U.S.+High+Plains+and+increased+summer+streamflow+in+the+Midwest&rft.au=Kustu%2C+M+Deniz%3BFan%2C+Ying%3BRodell%2C+Matthew&rft.aulast=Kustu&rft.aufirst=M&rft.date=2011-01-01&rft.volume=47&rft.issue=3&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2010WR010046 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 45 N1 - PubXState - DC N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2012-09-14 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - Great Plains; ground water; hydrology; Illinois River basin; irrigation; Midwest; moisture; North America; Ohio River basin; precipitation; rainfall; soils; streamflow; United States; unsaturated zone; water table DO - http://dx.doi.org/10.1029/2010WR010046 ER - TY - JOUR T1 - Hyperresolution global land surface modeling; meeting a grand challenge for monitoring Earth's terrestrial water AN - 1039338212; 2012-081124 AB - Monitoring Earth's terrestrial water conditions is critically important to many hydrological applications such as global food production; assessing water resources sustainability; and flood, drought, and climate change prediction. These needs have motivated the development of pilot monitoring and prediction systems for terrestrial hydrologic and vegetative states, but to date only at the rather coarse spatial resolutions ( approximately 10-100 km) over continental to global domains. Adequately addressing critical water cycle science questions and applications requires systems that are implemented globally at much higher resolutions, on the order of 1 km, resolutions referred to as hyperresolution in the context of global land surface models. This opinion paper sets forth the needs and benefits for a system that would monitor and predict the Earth's terrestrial water, energy, and biogeochemical cycles. We discuss six major challenges in developing a system: improved representation of surface-subsurface interactions due to fine-scale topography and vegetation; improved representation of land-atmospheric interactions and resulting spatial information on soil moisture and evapotranspiration; inclusion of water quality as part of the biogeochemical cycle; representation of human impacts from water management; utilizing massively parallel computer systems and recent computational advances in solving hyperresolution models that will have up to 10 (super 9) unknowns; and developing the required in situ and remote sensing global data sets. We deem the development of a global hyperresolution model for monitoring the terrestrial water, energy, and biogeochemical cycles a "grand challenge" to the community, and we call upon the international hydrologic community and the hydrological science support infrastructure to endorse the effort. JF - Water Resources Research AU - Wood, Eric F AU - Roundy, Joshua K AU - Troy, Tara J AU - van Beek, L P H AU - Bierkens, Marc F P AU - Blyth, Eleanor AU - de Roo, Ad AU - Doell, Petra AU - Ek, Mike AU - Famiglietti, James AU - Gochis, David AU - van de Giesen, Nick AU - Houser, Paul AU - Jaffe, Peter R AU - Kollet, Stefan AU - Lehner, Bernhard AU - Lettenmaier, Dennis P AU - Peters-Lidard, Christa AU - Sivapalan, Murugesu AU - Sheffield, Justin AU - Wade, Andrew AU - Whitehead, Paul Y1 - 2011 PY - 2011 DA - 2011 EP - Citation W05301 PB - American Geophysical Union, Washington, DC VL - 47 IS - 5 SN - 0043-1397, 0043-1397 KW - soils KW - hydrology KW - terrestrial environment KW - monitoring KW - numerical models KW - geologic hazards KW - moisture KW - global KW - prediction KW - information management KW - geochemical cycle KW - hydrologic cycle KW - natural hazards KW - floods KW - water resources KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1039338212?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Hyperresolution+global+land+surface+modeling%3B+meeting+a+grand+challenge+for+monitoring+Earth%27s+terrestrial+water&rft.au=Wood%2C+Eric+F%3BRoundy%2C+Joshua+K%3BTroy%2C+Tara+J%3Bvan+Beek%2C+L+P+H%3BBierkens%2C+Marc+F+P%3BBlyth%2C+Eleanor%3Bde+Roo%2C+Ad%3BDoell%2C+Petra%3BEk%2C+Mike%3BFamiglietti%2C+James%3BGochis%2C+David%3Bvan+de+Giesen%2C+Nick%3BHouser%2C+Paul%3BJaffe%2C+Peter+R%3BKollet%2C+Stefan%3BLehner%2C+Bernhard%3BLettenmaier%2C+Dennis+P%3BPeters-Lidard%2C+Christa%3BSivapalan%2C+Murugesu%3BSheffield%2C+Justin%3BWade%2C+Andrew%3BWhitehead%2C+Paul&rft.aulast=Wood&rft.aufirst=Eric&rft.date=2011-01-01&rft.volume=47&rft.issue=5&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2010WR010090 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 37 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-09-14 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - floods; geochemical cycle; geologic hazards; global; hydrologic cycle; hydrology; information management; moisture; monitoring; natural hazards; numerical models; prediction; soils; terrestrial environment; water resources DO - http://dx.doi.org/10.1029/2010WR010090 ER - TY - JOUR T1 - Satellite-based estimates of fine particulate matter during the Moscow wildfires of 2010 AN - 1037240977; 2012-077850 AB - Acute exposure to high levels of fine particulate matter (PM (sub 2.5) ), such as emitted by the Moscow wildfires in summer 2010, are associated with serious adverse health effects, yet the location and scale of such events often make in situ monitoring difficult. Recent satellite retrieval developments have the potential to monitor surface pollution during these events. We estimate daily PM (sub 2.5) concentrations using satellite observations during the Moscow fires. We increase the coverage of aerosol optical depth (AOD) retrieved from the Moderate Resolution Imaging Spectroradiometer (MODIS) by relaxing the operational cloud screening criteria which can mistake extreme aerosol events for cloud. This relaxed product shows excellent agreement with coincident operational retrievals (r (super 2) =0.994; slope = 1.010) and increases coverage during the fires by 21.3%. We relate MODIS AOD to PM (sub 2.5) using a chemical transport model (GEOS-Chem) and find good agreement with PM (sub 2.5) values estimated from in situ PM (sub 10) . We find that the relationship between AOD and PM (sub 2.5) is insensitive to uncertainties in biomass burning emissions. Satellite-derived and in situ values both indicate peak daily mean PM (sub 2.5) of approximately 600 mu g/m (super 3) on August 7, 2010 around Moscow, with a potential approximately 400 excess deaths during the fires. JF - Mineralogical Magazine AU - van Donkelaar, Aaron AU - Martin, Randall V AU - Levy, Rob AU - Da Silva, Arlindo AU - Krzyzanowski, Michal AU - Chubarova, Natalia AU - Semutnikova, Eugenia AU - Cohen, Aaron AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 2065 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - clouds KW - monitoring KW - pollution KW - atmosphere KW - Europe KW - Russian Federation KW - satellite methods KW - air pollution KW - fires KW - Commonwealth of Independent States KW - fine-grained materials KW - particulate materials KW - Moscow Russian Federation KW - remote sensing KW - public health KW - MODIS KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1037240977?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Satellite-based+estimates+of+fine+particulate+matter+during+the+Moscow+wildfires+of+2010&rft.au=van+Donkelaar%2C+Aaron%3BMartin%2C+Randall+V%3BLevy%2C+Rob%3BDa+Silva%2C+Arlindo%3BKrzyzanowski%2C+Michal%3BChubarova%2C+Natalia%3BSemutnikova%2C+Eugenia%3BCohen%2C+Aaron%3BAnonymous&rft.aulast=van+Donkelaar&rft.aufirst=Aaron&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=2065&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/2056.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-08-31 N1 - SubjectsTermNotLitGenreText - air pollution; atmosphere; clouds; Commonwealth of Independent States; Europe; fine-grained materials; fires; MODIS; monitoring; Moscow Russian Federation; particulate materials; pollution; public health; remote sensing; Russian Federation; satellite methods ER - TY - JOUR T1 - Contribution of satellite gravimetry to understanding seismic source processes of the 2011 Tohoku-Oki earthquake AN - 1037239644; 2012-078135 AB - The 2011 great Tohoku-Oki earthquake, apart from shaking the ground, perturbed the motions of satellites orbiting some hundreds km away above the ground, such as GRACE, due to coseismic change in the gravity field. Significant changes in inter-satellite distance were observed after the earthquake. These unconventional satellite measurements were inverted to examine the earthquake source processes from a radically different perspective that complements the analyses of seismic and geodetic ground recordings. We found the 'average' slip located up-dip of the hypocenter but within the lower crust, as characterized by a limited range of bulk and shear moduli. The GRACE data constrained a group of earthquake source parameters that yield increasing dip (7-16 degrees + or - 2 degrees ) and, simultaneously, decreasing moment magnitude (9.17-9.02 + or - 0.04) with increasing source depth (15-24 km). The GRACE solution includes the cumulative moment released over a month and demonstrates a unique view of the long-wavelength gravimetric response to all mass redistribution processes associated with the dynamic rupture and short-term postseismic mechanisms to improve our understanding of the physics of megathrusts. JF - Geophysical Research Letters AU - Han, Shin-Chan AU - Sauber, Jeanne AU - Riva, Riccardo Y1 - 2011 PY - 2011 DA - 2011 EP - Citation L24312 PB - American Geophysical Union, Washington, DC VL - 38 IS - 24 SN - 0094-8276, 0094-8276 KW - focal mechanism KW - Tohoku-Oki earthquake 2011 KW - Far East KW - geophysical surveys KW - geophysical methods KW - satellite methods KW - gravity methods KW - neotectonics KW - seismicity KW - surveys KW - tectonics KW - Honshu KW - Asia KW - earthquakes KW - seismotectonics KW - Japan KW - remote sensing KW - 19:Seismology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1037239644?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Contribution+of+satellite+gravimetry+to+understanding+seismic+source+processes+of+the+2011+Tohoku-Oki+earthquake&rft.au=Han%2C+Shin-Chan%3BSauber%2C+Jeanne%3BRiva%2C+Riccardo&rft.aulast=Han&rft.aufirst=Shin-Chan&rft.date=2011-01-01&rft.volume=38&rft.issue=24&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2011GL049975 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 45 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-08-31 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - Asia; earthquakes; Far East; focal mechanism; geophysical methods; geophysical surveys; gravity methods; Honshu; Japan; neotectonics; remote sensing; satellite methods; seismicity; seismotectonics; surveys; tectonics; Tohoku-Oki earthquake 2011 DO - http://dx.doi.org/10.1029/2011GL049975 ER - TY - JOUR T1 - Measurements of Martian dust devil winds with HiRISE AN - 1037238895; 2012-078123 AB - We report wind measurements within Martian dust devils observed in plan view from the High Resolution Imaging Science Experiment (HiRISE) orbiting Mars. The central color swath of the HiRISE instrument has three separate charge-coupled devices (CCDs) and color filters that observe the surface in rapid cadence. Active features, such as dust devils, appear in motion when observed by this region of the instrument. Our image animations reveal clear circulatory motion within dust devils that is separate from their translational motion across the Martian surface. Both manual and automated tracking of dust devil clouds reveal tangential winds that approach 20-30 m s (super -1) in some cases. These winds are sufficient to induce a approximately 1% decrease in atmospheric pressure within the dust devil core relative to ambient, facilitating dust lifting by reducing the threshold wind speed for particle elevation. Finally, radial velocity profiles constructed from our automated measurements test the Rankine vortex model for dust devil structure. Our profiles successfully reveal the solid body rotation component in the interior, but fail to conclusively illuminate the profile in the outer regions of the vortex. One profile provides evidence for a velocity decrease as a function of r (super -1/2) , instead of r (super -1) , suggestive of surface friction effects. However, other profiles do not support this observation, or do not contain enough measurements to produce meaningful insights. JF - Geophysical Research Letters AU - Choi, D S AU - Dundas, C M Y1 - 2011 PY - 2011 DA - 2011 EP - Citation L24206 PB - American Geophysical Union, Washington, DC VL - 38 IS - 24 SN - 0094-8276, 0094-8276 KW - clastic sediments KW - atmosphere KW - Mars KW - dust devils KW - terrestrial planets KW - planets KW - transport KW - dust KW - sediments KW - atmospheric pressure KW - wind transport KW - winds KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1037238895?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Measurements+of+Martian+dust+devil+winds+with+HiRISE&rft.au=Choi%2C+D+S%3BDundas%2C+C+M&rft.aulast=Choi&rft.aufirst=D&rft.date=2011-01-01&rft.volume=38&rft.issue=24&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2011GL049806 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 27 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-08-31 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - atmosphere; atmospheric pressure; clastic sediments; dust; dust devils; Mars; planets; sediments; terrestrial planets; transport; wind transport; winds DO - http://dx.doi.org/10.1029/2011GL049806 ER - TY - JOUR T1 - Use of Gravity Recovery and Climate Experiment terrestrial water storage retrievals to evaluate model estimates by the Australian water resources assessment system AN - 1033536858; 2012-074749 AB - Terrestrial water storage (TWS) estimates retrieved from the Gravity Recovery and Climate Experiment (GRACE) satellite mission were compared to TWS modeled by the Australian Water Resources Assessment (AWRA) system. The aim was to test whether differences could be attributed and used to identify model deficiencies. Data for 2003-2010 were decomposed into the seasonal cycle, linear trends and the remaining de-trended anomalies before comparing. AWRA tended to have smaller seasonal amplitude than GRACE. GRACE showed a strong (>15 mm yr (super -1) ) drying trend in northwest Australia that was associated with a preceding period of unusually wet conditions, whereas weaker drying trends in the southern Murray Basin and southwest Western Australia were associated with relatively dry conditions. AWRA estimated trends were less negative for these regions, while a more positive trend was estimated for areas affected by cyclone Charlotte in 2009. For 2003-2009, a decrease of 7-8 mm yr (super -1) (50-60 km (super 3) yr (super -1) ) was estimated from GRACE, enough to explain 6%-7% of the contemporary rate of global sea level rise. This trend was not reproduced by the model. Agreement between model and data suggested that the GRACE retrieval error estimates are biased high. A scaling coefficient applied to GRACE TWS to reduce the effect of signal leakage appeared to degrade quantitative agreement for some regions. Model aspects identified for improvement included a need for better estimation of rainfall in northwest Australia, and more sophisticated treatment of diffuse groundwater discharge processes and surface-groundwater connectivity for some regions. JF - Water Resources Research AU - van Dijk, A I J M AU - Renzullo, L J AU - Rodell, M Y1 - 2011 PY - 2011 DA - 2011 EP - Citation W11524 PB - American Geophysical Union, Washington, DC VL - 47 IS - 11 SN - 0043-1397, 0043-1397 KW - soils KW - hydrology KW - water storage KW - Australasia KW - rainfall KW - numerical analysis KW - moisture KW - Western Australia KW - surface water KW - GRACE KW - satellite methods KW - ground water KW - hydrologic cycle KW - gravity field KW - Australia KW - water resources KW - uncertainty KW - Murray Basin KW - climate KW - remote sensing KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1033536858?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Use+of+Gravity+Recovery+and+Climate+Experiment+terrestrial+water+storage+retrievals+to+evaluate+model+estimates+by+the+Australian+water+resources+assessment+system&rft.au=van+Dijk%2C+A+I+J+M%3BRenzullo%2C+L+J%3BRodell%2C+M&rft.aulast=van+Dijk&rft.aufirst=A+I+J&rft.date=2011-01-01&rft.volume=47&rft.issue=11&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2011WR010714 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 33 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-08-16 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - Australasia; Australia; climate; GRACE; gravity field; ground water; hydrologic cycle; hydrology; moisture; Murray Basin; numerical analysis; rainfall; remote sensing; satellite methods; soils; surface water; uncertainty; water resources; water storage; Western Australia DO - http://dx.doi.org/10.1029/2011WR010714 ER - TY - JOUR T1 - Development of the modern-style geochemical cycle of uranium by 3.5 Ga; a solution to the "lead paradox" AN - 1033531098; 2012-074474 AB - From analyses of redox-sensitive elements in many paleosol-, shale-, and submarine basalt-sections 3.5-2.5 Ga in age, we have recognized: (1) depletions of S and C, and depletions/enrichments of U, Mo, Fe, Mn, Cr and Cu in the paleosols; (2) enrichments of U and Mo in many of the black shales; (3) enrichments of U, Fe (super III) and Mo in the basalts that were affected by submarine alteration; and (4) Ce anomalies in many of the paleosols and submarine basalts. Therefore, the behaviors of redox-sensitive elements in these Archean rocks are essentially the same as those in Phanerozoic rocks. This suggests that the Archean oceans were poor in Fe, but rich in U and Mo, and that the modern-style geochemical cycles of redox-sensitive elements through the continental crust, oceans, oceanic crust, and mantle reservoirs have operated since at least approximately 3.5 Ga. The presence of highly radiogenic Pb in many Archean-age submarine basalts also supports this suggestion. The atmospheric pO (super 2) >0.5 PAL is necessary to operate the modern-style geochemical cycle of U. Subduction of Fe (super III) - and U-enriched oceanic crust may have created a large-scale heterogeneity of the mantle since approximately 3.5 Ga, including: (a) the Fe (super III) /Fe (super II) ratio, and (b) the "lead paradox" where the Pb in the mantle, especially in the source regions of OIBs and MORBs, is more radiogenic than in the chondrite-modeled bulk Earth. Therefore, through the creation of the oxygenated oceans and atmosphere, microbes have influenced the geochemistry of the deep Earth and the nature of volcanism since approximately 3.5 Ga. JF - Mineralogical Magazine AU - Ohmoto, H AU - Watanabe, Y AU - Yamaguchi, K E AU - Bevacqua, D C AU - Johnson, I AU - Rushton, T AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1561 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - volcanic rocks KW - oxygen KW - igneous rocks KW - paleo-oceanography KW - mantle KW - lead KW - black shale KW - sedimentary rocks KW - volcanism KW - basalts KW - geochemical anomalies KW - paleosols KW - Archean KW - geochemistry KW - Eh KW - Precambrian KW - modern analogs KW - shale KW - geochemical cycle KW - Phanerozoic KW - biogenic processes KW - metals KW - marine environment KW - submarine environment KW - uranium KW - clastic rocks KW - actinides KW - crust KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1033531098?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Development+of+the+modern-style+geochemical+cycle+of+uranium+by+3.5+Ga%3B+a+solution+to+the+%22lead+paradox%22&rft.au=Ohmoto%2C+H%3BWatanabe%2C+Y%3BYamaguchi%2C+K+E%3BBevacqua%2C+D+C%3BJohnson%2C+I%3BRushton%2C+T%3BAnonymous&rft.aulast=Ohmoto&rft.aufirst=H&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1561&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1555.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-08-16 N1 - SubjectsTermNotLitGenreText - actinides; Archean; basalts; biogenic processes; black shale; clastic rocks; crust; Eh; geochemical anomalies; geochemical cycle; geochemistry; igneous rocks; lead; mantle; marine environment; metals; modern analogs; oxygen; paleo-oceanography; paleosols; Phanerozoic; Precambrian; sedimentary rocks; shale; submarine environment; uranium; volcanic rocks; volcanism ER - TY - JOUR T1 - Historic emissions from deforestation and forest degradation in Mato Grosso, Brazil: 1) source data uncertainties AN - 1032890173; 16899180 AB - Background: Historic carbon emissions are an important foundation for proposed efforts to Reduce Emissions from Deforestation and forest Degradation and enhance forest carbon stocks through conservation and sustainable forest management (REDD+). The level of uncertainty in historic carbon emissions estimates is also critical for REDD+, since high uncertainties could limit climate benefits from credited mitigation actions. Here, we analyzed source data uncertainties based on the range of available deforestation, forest degradation, and forest carbon stock estimates for the Brazilian state of Mato Grosso during 1990-2008. Results: Deforestation estimates showed good agreement for multi-year periods of increasing and decreasing deforestation during the study period. However, annual deforestation rates differed by > 20% in more than half of the years between 1997-2008, even for products based on similar input data. Tier 2 estimates of average forest carbon stocks varied between 99-192 Mg C ha super(-1), with greatest differences in northwest Mato Grosso. Carbon stocks in deforested areas increased over the study period, yet this increasing trend in deforested biomass was smaller than the difference among carbon stock datasets for these areas. Conclusions: Estimates of source data uncertainties are essential for REDD+. Patterns of spatial and temporal disagreement among available data products provide a roadmap for future efforts to reduce source data uncertainties for estimates of historic forest carbon emissions. Specifically, regions with large discrepancies in available estimates of both deforestation and forest carbon stocks are priority areas for evaluating and improving existing estimates. Full carbon accounting for REDD+ will also require filling data gaps, including forest degradation and secondary forest, with annual data on all forest transitions. JF - Carbon Balance and Management AU - Morton, Douglas C AU - Sales, Marcio H AU - Souza, Carlos M, Jr AU - Griscom, Bronson AD - NASA Goddard Space Flight Center, Greenbelt MD USA Y1 - 2011 PY - 2011 DA - 2011 SP - 18 PB - BioMed Central Ltd., Middlesex House London W1T 4LB United Kingdom VL - 6 IS - 1 SN - 1750-0680, 1750-0680 KW - Ecology Abstracts; Sustainability Science Abstracts KW - Amazon KW - REDD+ KW - IPCC KW - Tier KW - Approach KW - Landsat KW - Historical account KW - Forest management KW - Data processing KW - Degradation KW - Climate KW - Forests KW - Emission control KW - Biomass KW - Carbon KW - Environmental accounting KW - Emissions KW - Conservation KW - Brazil, Mato Grosso KW - Deforestation KW - M3 1010:Issues in Sustainable Development KW - D 04060:Management and Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1032890173?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Carbon+Balance+and+Management&rft.atitle=Historic+emissions+from+deforestation+and+forest+degradation+in+Mato+Grosso%2C+Brazil%3A+1%29+source+data+uncertainties&rft.au=Morton%2C+Douglas+C%3BSales%2C+Marcio+H%3BSouza%2C+Carlos+M%2C+Jr%3BGriscom%2C+Bronson&rft.aulast=Morton&rft.aufirst=Douglas&rft.date=2011-01-01&rft.volume=6&rft.issue=1&rft.spage=18&rft.isbn=&rft.btitle=&rft.title=Carbon+Balance+and+Management&rft.issn=17500680&rft_id=info:doi/10.1186%2F1750-0680-6-18 L2 - http://www.cbmjournal.com/content/6/1/18 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-08-01 N1 - Number of references - 73 N1 - Last updated - 2015-08-05 N1 - SubjectsTermNotLitGenreText - Forest management; Data processing; Carbon; Climate; Conservation; Biomass; Deforestation; Historical account; Degradation; Environmental accounting; Emissions; Forests; Emission control; Brazil, Mato Grosso DO - http://dx.doi.org/10.1186/1750-0680-6-18 ER - TY - JOUR T1 - Hydrothermal synthesis of cubanite under conditions relevant to the CI-chondrite parent body AN - 1026862316; 2012-064421 AB - The low temperature form of CuFe (sub 2) S (sub 3) , cubanite, has been identified in the CI chondrites and in samples returned from Comet Wild 2 by the Stardust Mission [1]. We report the first synthesis of this mineral under aqueous conditions consistent with predictions for the CI-chondrite parent body. An aqueous system can be described as the interplay between pH, temperature, oxygen and sulfur fugacities [2]. We form cubanite at 150 and 200 degrees C (fig. 1) by controlling oxygen fugacity (fO (sub 2) ), pH and T. Oxygen isotope measurements and modeling of aqueous conditions on asteroidal bodies [3, and ref. therein] predict: T of 20-150 degrees C, pH of 7-10 and log fO (sub 2 ) >10 (super -55) -10 (super -70) . EMPA and FIB-TEM techniques are used to determine composition and crystal structure. [1] Berger et al. (2011) GCA doi:10.1016/j.gca.2011.03.026. [2] Barnes and Kullerud (1961) Econ. Geol. 56, 648-688. [3] Brearley (2006) in MESS-II, 587-624. JF - Mineralogical Magazine AU - Berger, E L AU - Lauretta, D S AU - Keller, L P AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 517 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - CI chondrites KW - experimental studies KW - sulfate ion KW - stony meteorites KW - oxygen KW - parent bodies KW - crystal growth KW - carbonaceous chondrites KW - aqueous solutions KW - cubanite KW - fugacity KW - temperature KW - hydrothermal conditions KW - meteorites KW - laboratory studies KW - sulfur KW - synthesis KW - chondrites KW - sulfides KW - pH KW - 05B:Petrology of meteorites and tektites KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1026862316?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Hydrothermal+synthesis+of+cubanite+under+conditions+relevant+to+the+CI-chondrite+parent+body&rft.au=Berger%2C+E+L%3BLauretta%2C+D+S%3BKeller%2C+L+P%3BAnonymous&rft.aulast=Berger&rft.aufirst=E&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=517&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/465.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Number of references - 3 N1 - Document feature - illus. N1 - Last updated - 2012-07-19 N1 - SubjectsTermNotLitGenreText - aqueous solutions; carbonaceous chondrites; chondrites; CI chondrites; crystal growth; cubanite; experimental studies; fugacity; hydrothermal conditions; laboratory studies; meteorites; oxygen; parent bodies; pH; stony meteorites; sulfate ion; sulfides; sulfur; synthesis; temperature ER - TY - JOUR T1 - Investigation of atmospheric nitrate and ammonium and their impact on air quality and climate in GMI AN - 1026861777; 2012-064440 AB - The capability to simulate nitrate and ammonium aerosols has been developed in NASA GMI model by implementing a thermodynamic equilibrium model that treats gas and aerosol multiphase chemical equilibrium reactions in a SO (sub 4) -NO (sub 3) -NH (sub 4) -H (sub 2) O system. Nitrate and ammonium can influence air quality and ecosystems substantially, and their importance will be increasing in the future due to the predicted increase of nitrogen emissions. An immediate outcome from the work is the possibility to improve tropospheric O (sub 3) simulation. Currently, the model treats HNO (sub 3) solely as a gas phase tracer. This semi-volatile species now partitions between gas and aerosol phases, and the tracer in each phase is subject to different chemical and physical processes. A preliminary analysis has been conducted by comparing results simulated with and without new nitrate package and by comparing model results with the ground station observations from CASTNET and EMEP. JF - Mineralogical Magazine AU - Bian, Huisheng AU - Steenrod, Steve AU - Chin, Mian AU - Rodriguez, Jose AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 526 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - GMI model KW - numerical models KW - ammonium ion KW - government agencies KW - data processing KW - pollution KW - atmosphere KW - troposphere KW - air pollution KW - chemical reactions KW - NASA KW - digital simulation KW - tracers KW - aerosols KW - thermodynamic properties KW - nitrate ion KW - geochemistry KW - Global Modeling Initiative KW - climate KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1026861777?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Investigation+of+atmospheric+nitrate+and+ammonium+and+their+impact+on+air+quality+and+climate+in+GMI&rft.au=Bian%2C+Huisheng%3BSteenrod%2C+Steve%3BChin%2C+Mian%3BRodriguez%2C+Jose%3BAnonymous&rft.aulast=Bian&rft.aufirst=Huisheng&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=526&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/465.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-07-19 N1 - SubjectsTermNotLitGenreText - aerosols; air pollution; ammonium ion; atmosphere; chemical reactions; climate; data processing; digital simulation; geochemistry; Global Modeling Initiative; GMI model; government agencies; NASA; nitrate ion; numerical models; pollution; thermodynamic properties; tracers; troposphere ER - TY - JOUR T1 - New titanium monosulfide mineral phase in Yamato 691 enstatite chondrite AN - 1020540484; 2012-057614 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nakamura-Messenger, Keiko AU - Clemett, S J AU - Rubin, A E AU - Choi, B G AU - Zhang, S AU - Rahman, Z AU - Oikawa, K AU - Keller, L P AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 1407 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - stony meteorites KW - crystal structure KW - temperature KW - meteorites KW - EH chondrites KW - polymorphism KW - enstatite chondrites KW - spectra KW - chondrites KW - stoichiometry KW - synthetic materials KW - new minerals KW - titanium sulfides KW - Yamato Meteorites KW - textures KW - space groups KW - parent bodies KW - X-ray spectra KW - TEM data KW - EDS spectra KW - Y 691 KW - titanium KW - metals KW - chondrules KW - sulfides KW - electron energy loss spectra KW - formula KW - 05B:Petrology of meteorites and tektites KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020540484?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=New+titanium+monosulfide+mineral+phase+in+Yamato+691+enstatite+chondrite&rft.au=Nakamura-Messenger%2C+Keiko%3BClemett%2C+S+J%3BRubin%2C+A+E%3BChoi%2C+B+G%3BZhang%2C+S%3BRahman%2C+Z%3BOikawa%2C+K%3BKeller%2C+L+P%3BAnonymous&rft.aulast=Nakamura-Messenger&rft.aufirst=Keiko&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1407.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 3, 2011 N1 - Last updated - 2012-06-15 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chondrites; chondrules; crystal structure; EDS spectra; EH chondrites; electron energy loss spectra; enstatite chondrites; formula; metals; meteorites; new minerals; parent bodies; polymorphism; space groups; spectra; stoichiometry; stony meteorites; sulfides; synthetic materials; TEM data; temperature; textures; titanium; titanium sulfides; X-ray spectra; Y 691; Yamato Meteorites ER - TY - JOUR T1 - Micro-scale distributions of major and trace elements in chondrites AN - 1020540481; 2012-057611 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Ireland, Trevor R AU - Law, P AU - Zolensky, M AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 1623 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - magnesium KW - stony meteorites KW - ion probe data KW - asteroids KW - isotopes KW - Mg-26 KW - mass spectra KW - Murray Meteorite KW - CV chondrites KW - silicon KW - stable isotopes KW - Murchison Meteorite KW - Allende Meteorite KW - Al-27 KW - meteorites KW - major elements KW - aluminum KW - spectra KW - trace elements KW - chondrites KW - alkaline earth metals KW - Itokawa Asteroid KW - Si-30 KW - matrix KW - carbonaceous chondrites KW - provenance KW - SHRIMP data KW - metals KW - CM chondrites KW - 05B:Petrology of meteorites and tektites KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020540481?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Micro-scale+distributions+of+major+and+trace+elements+in+chondrites&rft.au=Ireland%2C+Trevor+R%3BLaw%2C+P%3BZolensky%2C+M%3BAnonymous&rft.aulast=Ireland&rft.aufirst=Trevor&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1623.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 2 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 3, 2011 N1 - Last updated - 2012-06-15 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Al-27; alkaline earth metals; Allende Meteorite; aluminum; asteroids; carbonaceous chondrites; chondrites; CM chondrites; CV chondrites; ion probe data; isotopes; Itokawa Asteroid; magnesium; major elements; mass spectra; matrix; metals; meteorites; Mg-26; Murchison Meteorite; Murray Meteorite; provenance; SHRIMP data; Si-30; silicon; spectra; stable isotopes; stony meteorites; trace elements ER - TY - JOUR T1 - Olivine and pyroxene compositions in fine-grained chondritic materials AN - 1020540478; 2012-057608 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Zolensky, Michael E AU - Frank, D AU - Le, L AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 1898 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - ordinary chondrites KW - stony meteorites KW - olivine group KW - CV chondrites KW - electron probe data KW - meteorites KW - pyroxene group KW - mineral composition KW - major elements KW - olivine KW - orthosilicates KW - Wild Comet KW - spectra KW - chondrites KW - chain silicates KW - CI chondrites KW - minor elements KW - Stardust Mission KW - grain size KW - LL chondrites KW - thermal metamorphism KW - carbonaceous chondrites KW - metamorphism KW - X-ray spectra KW - EDS spectra KW - nesosilicates KW - aqueous alteration KW - comets KW - CM chondrites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020540478?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Olivine+and+pyroxene+compositions+in+fine-grained+chondritic+materials&rft.au=Zolensky%2C+Michael+E%3BFrank%2C+D%3BLe%2C+L%3BAnonymous&rft.aulast=Zolensky&rft.aufirst=Michael&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1898.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 17 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 3, 2011 N1 - Last updated - 2012-06-15 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aqueous alteration; carbonaceous chondrites; chain silicates; chondrites; CI chondrites; CM chondrites; comets; CV chondrites; EDS spectra; electron probe data; grain size; LL chondrites; major elements; metamorphism; meteorites; mineral composition; minor elements; nesosilicates; olivine; olivine group; ordinary chondrites; orthosilicates; pyroxene group; silicates; spectra; Stardust Mission; stony meteorites; thermal metamorphism; Wild Comet; X-ray spectra ER - TY - JOUR T1 - Infrared spectra of C (sub 2) H (sub 6) and C (sub 2) H (sub 6) -H (sub 2) O AN - 1020540331; 2012-057533 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Curry, A S AU - Mastrapa, R M AU - Myszka, J A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 2690 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - water KW - solar system KW - icy satellites KW - experimental studies KW - gaseous phase KW - aliphatic hydrocarbons KW - ethane KW - alkanes KW - temperature KW - infrared spectra KW - absorption KW - organic compounds KW - mixing KW - low temperature KW - hydrocarbons KW - Titan Satellite KW - spectra KW - transformations KW - satellites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020540331?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Infrared+spectra+of+C+%28sub+2%29+H+%28sub+6%29+and+C+%28sub+2%29+H+%28sub+6%29+-H+%28sub+2%29+O&rft.au=Curry%2C+A+S%3BMastrapa%2C+R+M%3BMyszka%2C+J+A%3BAnonymous&rft.aulast=Curry&rft.aufirst=A&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2690.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 1, 2011 N1 - Last updated - 2012-06-15 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - absorption; aliphatic hydrocarbons; alkanes; ethane; experimental studies; gaseous phase; hydrocarbons; icy satellites; infrared spectra; low temperature; mixing; organic compounds; satellites; solar system; spectra; temperature; Titan Satellite; transformations; water ER - TY - JOUR T1 - Spitzer observations of eta Corvi; evidence at approximately 1 Gyr for an LHB-like delivery of organics and water-rich material to the THZ of a sun-like star AN - 1020540319; 2012-057560 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lisse, Carey M AU - Chen, C H AU - Wyatt, M C AU - Morlok, A AU - Thebault, P AU - Bryden, G AU - Watson, D M AU - Manoj, P AU - Sheehan, P AU - Sloan, G AU - Currie, T M AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 2438 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - water KW - terrestrial habitability zone KW - Eta Corvi KW - telescope methods KW - Spitzer Space Telescope KW - Kuiper Belt KW - parent bodies KW - impacts KW - infrared spectra KW - models KW - Late Heavy Bombardment KW - photometry KW - organic compounds KW - centaurs KW - hypervelocity impacts KW - stars KW - velocity KW - spectra KW - luminosity KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020540319?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Spitzer+observations+of+eta+Corvi%3B+evidence+at+approximately+1+Gyr+for+an+LHB-like+delivery+of+organics+and+water-rich+material+to+the+THZ+of+a+sun-like+star&rft.au=Lisse%2C+Carey+M%3BChen%2C+C+H%3BWyatt%2C+M+C%3BMorlok%2C+A%3BThebault%2C+P%3BBryden%2C+G%3BWatson%2C+D+M%3BManoj%2C+P%3BSheehan%2C+P%3BSloan%2C+G%3BCurrie%2C+T+M%3BAnonymous&rft.aulast=Lisse&rft.aufirst=Carey&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2438.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 6, 2011 N1 - Last updated - 2012-10-18 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - centaurs; Eta Corvi; hypervelocity impacts; impacts; infrared spectra; Kuiper Belt; Late Heavy Bombardment; luminosity; models; organic compounds; parent bodies; photometry; spectra; Spitzer Space Telescope; stars; telescope methods; terrestrial habitability zone; velocity; water ER - TY - JOUR T1 - A howardite-eucrite-diogenite (HED) meteorite compendium; summarizing samples of Asteroid 4 Vesta in preparation for the Dawn Mission AN - 1020540292; 2012-057578 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Garber, J M AU - Righter, K AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 2141 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Pecora Escarpment Meteorites KW - stony meteorites KW - asteroids KW - igneous rocks KW - Elephant Moraine Meteorites KW - harzburgite KW - EETA 79002 KW - meteorites KW - plutonic rocks KW - melting KW - howardite KW - cumulates KW - vesicular texture KW - plutons KW - breccia KW - Vesta Asteroid KW - textures KW - parent bodies KW - HED meteorites KW - diogenite KW - anomalies KW - achondrites KW - ultramafics KW - intrusions KW - Allan Hills Meteorites KW - Antarctica KW - paired meteorites KW - classification KW - peridotites KW - eucrite KW - PCA 91007 KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020540292?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=A+howardite-eucrite-diogenite+%28HED%29+meteorite+compendium%3B+summarizing+samples+of+Asteroid+4+Vesta+in+preparation+for+the+Dawn+Mission&rft.au=Garber%2C+J+M%3BRighter%2C+K%3BAnonymous&rft.aulast=Garber&rft.aufirst=J&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2141.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 15 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 6, 2011 N1 - Last updated - 2012-06-15 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; Allan Hills Meteorites; anomalies; Antarctica; asteroids; breccia; classification; cumulates; diogenite; EETA 79002; Elephant Moraine Meteorites; eucrite; harzburgite; HED meteorites; howardite; igneous rocks; intrusions; melting; meteorites; paired meteorites; parent bodies; PCA 91007; Pecora Escarpment Meteorites; peridotites; plutonic rocks; plutons; stony meteorites; textures; ultramafics; vesicular texture; Vesta Asteroid ER - TY - JOUR T1 - Fluid-mediated alteration on 4 Vesta; evidence from orthopyroxene clasts in howardites AN - 1020540208; 2012-057581 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Mittlefehldt, David W AU - Johnson, K N AU - Herrin, J S AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 1834 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - pigeonite KW - alteration KW - magnesium KW - stony meteorites KW - asteroids KW - enrichment KW - fluid phase KW - Elephant Moraine Meteorites KW - metasomatism KW - manganese KW - EET 99400 KW - iron KW - electron probe data KW - meteorites KW - pyroxene group KW - clinopyroxene KW - EET 99408 KW - howardite KW - geochemical anomalies KW - EET 92014 KW - chain silicates KW - alkaline earth metals KW - Vesta Asteroid KW - HED meteorites KW - clasts KW - achondrites KW - EET 83376 KW - aqueous alteration KW - metals KW - petrography KW - orthopyroxene KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020540208?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Fluid-mediated+alteration+on+4+Vesta%3B+evidence+from+orthopyroxene+clasts+in+howardites&rft.au=Mittlefehldt%2C+David+W%3BJohnson%2C+K+N%3BHerrin%2C+J+S%3BAnonymous&rft.aulast=Mittlefehldt&rft.aufirst=David&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1834.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 7, 2011 N1 - Last updated - 2012-06-15 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; alkaline earth metals; alteration; aqueous alteration; asteroids; chain silicates; clasts; clinopyroxene; EET 83376; EET 92014; EET 99400; EET 99408; electron probe data; Elephant Moraine Meteorites; enrichment; fluid phase; geochemical anomalies; HED meteorites; howardite; iron; magnesium; manganese; metals; metasomatism; meteorites; orthopyroxene; petrography; pigeonite; pyroxene group; silicates; stony meteorites; Vesta Asteroid ER - TY - JOUR T1 - Methanol and methanol in water; exploring the spectra AN - 1020540174; 2012-057531 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Myszka, Janine A AU - Mastrapa, R M AU - Curry, A S AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 2561 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - water KW - experimental studies KW - temperature KW - methanol KW - infrared spectra KW - wavelength KW - laboratory studies KW - FTIR spectra KW - organic compounds KW - mixing KW - ice KW - low temperature KW - alcohols KW - spectra KW - remote sensing KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020540174?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Methanol+and+methanol+in+water%3B+exploring+the+spectra&rft.au=Myszka%2C+Janine+A%3BMastrapa%2C+R+M%3BCurry%2C+A+S%3BAnonymous&rft.aulast=Myszka&rft.aufirst=Janine&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2561.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 1, 2011 N1 - Last updated - 2012-06-15 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alcohols; experimental studies; FTIR spectra; ice; infrared spectra; laboratory studies; low temperature; methanol; mixing; organic compounds; remote sensing; spectra; temperature; water; wavelength ER - TY - JOUR T1 - Spatial distribution of volcanic hotspots and paterae on Io; implications for tidal heating models and magmatic pathways AN - 1020540168; 2012-057550 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Hamilton, C W AU - Beggan, C D AU - Lopes, R AU - Williams, D A AU - Radebaugh, J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 1025 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - upwelling KW - hot spots KW - paterae KW - orbits KW - magmatism KW - tidal heating KW - statistical analysis KW - standard deviation KW - Io Satellite KW - nearest neighbor analysis KW - Galilean satellites KW - geometry KW - spherical harmonic analysis KW - models KW - spatial distribution KW - asthenosphere KW - mountains KW - volcanic features KW - volcanism KW - heat flow KW - heating KW - satellites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020540168?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Spatial+distribution+of+volcanic+hotspots+and+paterae+on+Io%3B+implications+for+tidal+heating+models+and+magmatic+pathways&rft.au=Hamilton%2C+C+W%3BBeggan%2C+C+D%3BLopes%2C+R%3BWilliams%2C+D+A%3BRadebaugh%2C+J%3BAnonymous&rft.aulast=Hamilton&rft.aufirst=C&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1025.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 2, 2011 N1 - Last updated - 2012-06-15 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - asthenosphere; Galilean satellites; geometry; heat flow; heating; hot spots; Io Satellite; magmatism; models; mountains; nearest neighbor analysis; orbits; paterae; satellites; spatial distribution; spherical harmonic analysis; standard deviation; statistical analysis; tidal heating; upwelling; volcanic features; volcanism ER - TY - JOUR T1 - Coordinated TEM, isotopic and heating analyses of distinctive carbonaceous phases in IDPS AN - 1020540128; 2012-057586 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Matrajt, G AU - Messenger, S AU - Brownlee, D AU - Joswiak, D AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 1049 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - carbonaceous composition KW - experimental studies KW - N-15/N-14 KW - ion probe data KW - isotopes KW - atmospheric entry KW - isotope ratios KW - C-13/C-12 KW - mass spectra KW - thermal history KW - interplanetary dust KW - TEM data KW - stable isotopes KW - nitrogen KW - morphology KW - cosmic dust KW - carbon KW - heating KW - NanoSIMS KW - spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020540128?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Coordinated+TEM%2C+isotopic+and+heating+analyses+of+distinctive+carbonaceous+phases+in+IDPS&rft.au=Matrajt%2C+G%3BMessenger%2C+S%3BBrownlee%2C+D%3BJoswiak%2C+D%3BAnonymous&rft.aulast=Matrajt&rft.aufirst=G&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1049.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Sept. 7, 2011 N1 - Last updated - 2012-06-15 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmospheric entry; C-13/C-12; carbon; carbonaceous composition; cosmic dust; experimental studies; heating; interplanetary dust; ion probe data; isotope ratios; isotopes; mass spectra; morphology; N-15/N-14; NanoSIMS; nitrogen; spectra; stable isotopes; TEM data; thermal history ER - TY - JOUR T1 - Effect of sulfur on siderophile element partitioning between olivine and Martian primary melt AN - 1020538931; 2012-057632 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Usui, Tomohiro AU - Shearer, C K AU - Righter, K AU - Jones, J H AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 1670 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - stony meteorites KW - ion probe data KW - cobalt KW - Martian meteorites KW - mass spectra KW - olivine group KW - Mars KW - manganese KW - melts KW - iron KW - electron probe data KW - partitioning KW - meteorites KW - vanadium KW - olivine KW - orthosilicates KW - spectra KW - chromium KW - Yamato Meteorites KW - experimental studies KW - silicate melts KW - siderophile elements KW - Y 980459 KW - achondrites KW - terrestrial planets KW - nesosilicates KW - planets KW - partition coefficients KW - metals KW - nickel KW - sulfur KW - 05B:Petrology of meteorites and tektites KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020538931?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Effect+of+sulfur+on+siderophile+element+partitioning+between+olivine+and+Martian+primary+melt&rft.au=Usui%2C+Tomohiro%3BShearer%2C+C+K%3BRighter%2C+K%3BJones%2C+J+H%3BAnonymous&rft.aulast=Usui&rft.aufirst=Tomohiro&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1670.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 4, 2011 N1 - Last updated - 2012-06-15 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; chromium; cobalt; electron probe data; experimental studies; ion probe data; iron; manganese; Mars; Martian meteorites; mass spectra; melts; metals; meteorites; nesosilicates; nickel; olivine; olivine group; orthosilicates; partition coefficients; partitioning; planets; siderophile elements; silicate melts; silicates; spectra; stony meteorites; sulfur; terrestrial planets; vanadium; Y 980459; Yamato Meteorites ER - TY - JOUR T1 - Rb-Sr and Sm-Nd ages, and petrogenesis of depleted shergottite Northwest Africa 5990 AN - 1020538921; 2012-057631 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Shih, C Y AU - Nyquist, L E AU - Reese, Y AU - Irving, A J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 1846 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Northwest Africa Meteorites KW - stony meteorites KW - isotopes KW - Martian meteorites KW - igneous rocks KW - partial melting KW - mantle KW - Mars KW - Hesperian KW - stable isotopes KW - Rb/Sr KW - meteorites KW - radioactive isotopes KW - plutonic rocks KW - chronology KW - Sm-147/Nd-144 KW - dates KW - cumulates KW - absolute age KW - samarium KW - rare earths KW - depletion KW - alkaline earth metals KW - isotope ratios KW - differentiation KW - impacts KW - achondrites KW - ultramafics KW - terrestrial planets KW - genesis KW - Sr-87/Sr-86 KW - provenance KW - planets KW - Sm/Nd KW - metals KW - peridotites KW - NWA 5990 KW - neodymium KW - strontium KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020538921?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Rb-Sr+and+Sm-Nd+ages%2C+and+petrogenesis+of+depleted+shergottite+Northwest+Africa+5990&rft.au=Shih%2C+C+Y%3BNyquist%2C+L+E%3BReese%2C+Y%3BIrving%2C+A+J%3BAnonymous&rft.aulast=Shih&rft.aufirst=C&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1846.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 4, 2011 N1 - Last updated - 2012-06-15 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - absolute age; achondrites; alkaline earth metals; chronology; cumulates; dates; depletion; differentiation; genesis; Hesperian; igneous rocks; impacts; isotope ratios; isotopes; mantle; Mars; Martian meteorites; metals; meteorites; neodymium; Northwest Africa Meteorites; NWA 5990; partial melting; peridotites; planets; plutonic rocks; provenance; radioactive isotopes; rare earths; Rb/Sr; samarium; Sm-147/Nd-144; Sm/Nd; Sr-87/Sr-86; stable isotopes; stony meteorites; strontium; terrestrial planets; ultramafics ER - TY - JOUR T1 - Making amorphous ferromagnesiosilica and metastable magnesioferrite and fayalite AN - 1020537077; 2012-057618 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Rietmeijer, Frans J M AU - Pun, A AU - Nuth, J A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 1027 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - magnesium KW - stony meteorites KW - ferromagnesiosilica KW - olivine group KW - silicon KW - interplanetary dust KW - iron KW - crystallinity KW - temperature KW - meteorites KW - laboratory studies KW - Halley's Comet KW - fayalite KW - mixing KW - orthosilicates KW - oxides KW - condensates KW - chondrites KW - chemical composition KW - alkaline earth metals KW - experimental studies KW - gaseous phase KW - amorphous materials KW - parent bodies KW - grain size KW - carbonaceous chondrites KW - solar nebula KW - nesosilicates KW - cosmic dust KW - comets KW - metals KW - magnesioferrite KW - agglomerate KW - CM chondrites KW - nanoparticles KW - high temperature KW - ferropericlase KW - annealing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020537077?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Making+amorphous+ferromagnesiosilica+and+metastable+magnesioferrite+and+fayalite&rft.au=Rietmeijer%2C+Frans+J+M%3BPun%2C+A%3BNuth%2C+J+A%3BAnonymous&rft.aulast=Rietmeijer&rft.aufirst=Frans+J&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1027.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Accessed on Oct. 3, 2011 N1 - Last updated - 2012-06-15 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - agglomerate; alkaline earth metals; amorphous materials; annealing; carbonaceous chondrites; chemical composition; chondrites; CM chondrites; comets; condensates; cosmic dust; crystallinity; experimental studies; fayalite; ferromagnesiosilica; ferropericlase; gaseous phase; grain size; Halley's Comet; high temperature; interplanetary dust; iron; laboratory studies; magnesioferrite; magnesium; metals; meteorites; mixing; nanoparticles; nesosilicates; olivine group; orthosilicates; oxides; parent bodies; silicates; silicon; solar nebula; stony meteorites; temperature ER - TY - JOUR T1 - Curating NASA's extraterrestrial samples; past, present, and future AN - 1015561082; 637676-8 JF - Chemie der Erde AU - Allen, Carlton AU - Allton, Judith AU - Lofgren, Gary AU - Righter, Kevin AU - Zolensky, Michael Y1 - 2011 PY - 2011 DA - 2011 SP - 1 EP - 20 PB - Elsevier for Gustav Fischer Verlag, Jena VL - 71 IS - 1 SN - 0009-2819, 0009-2819 KW - Transantarctic Mountains KW - meteorites KW - cosmic dust KW - Antarctica KW - museums KW - sampling KW - observatories KW - Moon KW - rocks KW - 05B:Petrology of meteorites and tektites KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1015561082?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemie+der+Erde&rft.atitle=Curating+NASA%27s+extraterrestrial+samples%3B+past%2C+present%2C+and+future&rft.au=Allen%2C+Carlton%3BAllton%2C+Judith%3BLofgren%2C+Gary%3BRighter%2C+Kevin%3BZolensky%2C+Michael&rft.aulast=Allen&rft.aufirst=Carlton&rft.date=2011-01-01&rft.volume=71&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Chemie+der+Erde&rft.issn=00092819&rft_id=info:doi/10.1016%2Fj.chemer.2010.12.003 L2 - http://www.sciencedirect.com/science/journal/00092819 LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data from Geoline, Bundesanstalt fur Geowissenschaften und Rohstoffe, Hanover, Germany N1 - Number of references - 99 N1 - Last updated - 2017-01-24 N1 - CODEN - CERDAA N1 - SubjectsTermNotLitGenreText - Antarctica; cosmic dust; meteorites; Moon; museums; observatories; rocks; sampling; Transantarctic Mountains DO - http://dx.doi.org/10.1016/j.chemer.2010.12.003 ER - TY - JOUR T1 - Observing planets and small bodies in sputtered high-energy atom fluxes AN - 1015458323; 2012-046938 AB - The evolution of the surfaces of bodies unprotected by either strong magnetic fields or thick atmospheres in the solar system is caused by various processes, induced by photons, energetic ions, and micrometeoroids. Among these processes, the continuous bombardment of the solar wind or energetic magnetospheric ions onto the bodies may significantly affect their surfaces, with implications for their evolution. Ion precipitation produces neutral atom releases into the exosphere through ion sputtering, with velocity distribution extending well above the particle escape limits. We refer to this component of the surface ejecta as sputtered high-energy atoms (SHEA). The use of ion sputtering emission for studying the interaction of exposed bodies (EB) with ion environments is described here. Remote sensing in SHEA in the vicinity of EB can provide mapping of the bodies exposed to ion sputtering action with temporal and mass resolution. This paper speculates on the possibility of performing remote sensing of exposed bodies using SHEA and suggests the need for quantitative results from laboratory simulations and molecular physic modeling in order to understand SHEA data from planetary missions. In Appendix A, referenced computer simulations using existing sputtering data are reviewed. JF - Journal of Geophysical Research AU - Milillo, A AU - Orsini, S AU - Hsieh, K C AU - Baragiola, R AU - Fama, M AU - Johnson, R AU - Mura, A AU - Plainaki, C AU - Sarantos, M AU - Cassidy, T A AU - De Angelis, E AU - Desai, M AU - Goldstein, R AU - Ip, W H AU - Killen, R AU - Livi, S Y1 - 2011 PY - 2011 DA - 2011 EP - Citation A07229 PB - American Geophysical Union, Washington, DC VL - 116 IS - A7 SN - 0148-0227, 0148-0227 KW - solar system KW - planets KW - SHEA KW - asteroids KW - solar wind KW - ions KW - magnetic field KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1015458323?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Observing+planets+and+small+bodies+in+sputtered+high-energy+atom+fluxes&rft.au=Milillo%2C+A%3BOrsini%2C+S%3BHsieh%2C+K+C%3BBaragiola%2C+R%3BFama%2C+M%3BJohnson%2C+R%3BMura%2C+A%3BPlainaki%2C+C%3BSarantos%2C+M%3BCassidy%2C+T+A%3BDe+Angelis%2C+E%3BDesai%2C+M%3BGoldstein%2C+R%3BIp%2C+W+H%3BKillen%2C+R%3BLivi%2C+S&rft.aulast=Milillo&rft.aufirst=A&rft.date=2011-01-01&rft.volume=116&rft.issue=A7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2011JA016530 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 34 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - asteroids; ions; magnetic field; planets; remote sensing; SHEA; solar system; solar wind DO - http://dx.doi.org/10.1029/2011JA016530 ER - TY - JOUR T1 - TERRESTRIAL PERSPECTIVE ON AUTHIGENIC CLAY MINERAL PRODUCTION IN ANCIENT MARTIAN LAKES AN - 1009813937; 16175619 AB - The discovery of phyllosilicates in terrains of Noachian age (>3.5 Ga) on Mars implies a period in the planet's history that was characterized by wetter, warmer conditions that may have been more hospitable for life than the cold and dry conditions prevalent today. More specific information about the original locations and mechanisms of clay mineral formation on Mars is not as well constrained, however, in part because the origin of particular clay minerals is often non-unique. For example, Fe and Mg smectite-bearing deposits on Mars may have formed in various environments, including the weathering profiles of basic volcanic rocks, impact-induced hydrothermal sites, or in bodies of standing water. The identification of lacustrine deposits on Mars is of great interest due to their potential for the preservation of organic material, but identifying any given suite of sedimentary rocks as such is difficult when limited to mineralogy and morphology derived from orbital data. Here, the processes and conditions leading to clay mineral formation in lakes and evaporative marine basins on Earth are reviewed, with a focus on the spatial and stratigraphic distribution of clays in these settings. The goal is to provide criteria to determine if certain Martian clay deposits are consistent with such an origin, which in turn will aid in the identification of possible ancient habitable environments on Mars. JF - Clays and Clay Minerals AU - Bristow, Thomas F AU - Milliken, Ralph E AD - Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA, thomas.f.bristow@nasa.gov Y1 - 2011 PY - 2011 DA - 2011 SP - 339 EP - 358 PB - Clay Minerals Society, PO Box 460130 Aurora, CO 80046 United States VL - 59 IS - 4 SN - 0009-8604, 0009-8604 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Clay minerals KW - Volcanic rocks KW - Ecological distribution KW - Standing Waters KW - Stratigraphy KW - Mineralogy KW - Lake deposits KW - Freshwater KW - Environmental factors KW - Clays KW - Lakes KW - History KW - Profiles KW - Clay Minerals KW - Sedimentary rocks KW - Weathering KW - Lake Basins KW - SW 5010:Network design KW - Q2 09265:Sedimentary structures and stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1009813937?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Clays+and+Clay+Minerals&rft.atitle=TERRESTRIAL+PERSPECTIVE+ON+AUTHIGENIC+CLAY+MINERAL+PRODUCTION+IN+ANCIENT+MARTIAN+LAKES&rft.au=Bristow%2C+Thomas+F%3BMilliken%2C+Ralph+E&rft.aulast=Bristow&rft.aufirst=Thomas&rft.date=2011-01-01&rft.volume=59&rft.issue=4&rft.spage=339&rft.isbn=&rft.btitle=&rft.title=Clays+and+Clay+Minerals&rft.issn=00098604&rft_id=info:doi/10.1346%2FCCMN.2011.0590401 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-10-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Clay minerals; Volcanic rocks; Ecological distribution; Stratigraphy; Sedimentary rocks; Mineralogy; Weathering; Lake deposits; Environmental factors; Lakes; Profiles; History; Clay Minerals; Standing Waters; Lake Basins; Clays; Freshwater DO - http://dx.doi.org/10.1346/CCMN.2011.0590401 ER - TY - JOUR T1 - Warford Ranch Volcano, Arizona, field exercise AN - 1008821112; 2012-041773 AB - Warford Ranch is a small "drive-in" shield volcano covering an area of approximately 2 by 3 km west of Phoenix, and it is accessible from Interstate Highway 8 near Gila Bend, Arizona. The basaltic shield is superposed on silicic lavas, granodiorites, and alluvial deposits and is part of the Sentinel-Arlington volcanic field. Dated at 3.19 Ma, the shield volcano is sufficiently young to preserve the original morphology, but it also shows the effects of moderate weathering, development of desert varnish, and the formation of caliche deposits. Imaged in both color near-infrared (IR) and in thermal infrared multispectral scanner (TIMS) data, these various units afford the opportunity to conduct simple remote-sensing mapping, which can then be field tested. In addition to the lava flows comprising the shield, pyroclastic deposits and dikes are also present. The compact size of the volcano enables the entire feature to be examined in the field in one day. With short introductory discussion, participants of nearly any background can be introduced to the fundamentals of remote sensing, igneous rocks, field methods, and evaluation of the volcanic history of a small volcano. JF - Special Paper - Geological Society of America AU - Greeley, Ronald AU - Cave, Shelby A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 393 EP - 400 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - United States KW - near-infrared spectra KW - caliche KW - volcanic rocks KW - igneous rocks KW - thermal infrared spectra KW - field trips KW - road log KW - multispectral analysis KW - Cenozoic KW - ash flows KW - Sentinel-Arlington volcanic field KW - basalts KW - Warford Ranch KW - spectra KW - shield volcanoes KW - weathering KW - morphology KW - Tertiary KW - Neogene KW - rock varnish KW - Arizona KW - rhyodacites KW - volcanoes KW - Pliocene KW - remote sensing KW - field studies KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008821112?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Warford+Ranch+Volcano%2C+Arizona%2C+field+exercise&rft.au=Greeley%2C+Ronald%3BCave%2C+Shelby&rft.aulast=Greeley&rft.aufirst=Ronald&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=393&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2824%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 10 N1 - PubXState - CO N1 - Document feature - illus. incl. geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - Arizona; ash flows; basalts; caliche; Cenozoic; field studies; field trips; igneous rocks; morphology; multispectral analysis; near-infrared spectra; Neogene; Pliocene; remote sensing; rhyodacites; road log; rock varnish; Sentinel-Arlington volcanic field; shield volcanoes; spectra; Tertiary; thermal infrared spectra; United States; volcanic rocks; volcanoes; Warford Ranch; weathering DO - http://dx.doi.org/10.1130/2011.2483(24) ER - TY - JOUR T1 - The "Holey Tour" planetary geology field trip, Arizona AN - 1008821111; 2012-041772 AB - Arizona has a wide variety of geological features relevant to planetary geology. The "Holey Tour" is a 2 d field trip (Phoenix-Flagstaff-Phoenix) that introduces participants to crater forms (hence the "holes" of the tour), including a maar, karst sinkhole, pit crater, cinder-cone craters, a volcano-tectonic depression, and the classic impact structure Meteor Crater. The Apollo astronaut field training site near Flagstaff is examined, which includes a terrain that was artificially generated to simulate a cratered lunar surface. In addition, planetary volcanism is discussed with stops that include a shield volcano, composite cone, silicic dome, and cinder cones; considerations include key variables in volcanic morphology, such as lava composition and rates of effusion. The general geology of Arizona is discussed throughout the trip and includes parts of the Colorado Plateau, the Basin and Range Province, and the Central Highlands (also called the "transition" zone). The trip can be adapted to meet the needs of any group, from secondary school students to established planetary scientists. JF - Special Paper - Geological Society of America AU - Greeley, Ronald A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 377 EP - 391 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - United States KW - cratering KW - Coconino County Arizona KW - impact features KW - karst KW - field trips KW - Apollo Program KW - education KW - areal geology KW - road log KW - volcanic features KW - Sunset Crater KW - volcanism KW - shield volcanoes KW - Meteor Crater KW - lava flows KW - Moon KW - cinder cones KW - craters KW - San Francisco Peaks KW - sinkholes KW - maars KW - Arizona KW - depressions KW - volcanoes KW - impact craters KW - solution features KW - 13:Areal geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008821111?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=The+%22Holey+Tour%22+planetary+geology+field+trip%2C+Arizona&rft.au=Greeley%2C+Ronald&rft.aulast=Greeley&rft.aufirst=Ronald&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=377&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2823%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 17 N1 - PubXState - CO N1 - Document feature - illus. incl. 1 table, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - Apollo Program; areal geology; Arizona; cinder cones; Coconino County Arizona; cratering; craters; depressions; education; field trips; impact craters; impact features; karst; lava flows; maars; Meteor Crater; Moon; road log; San Francisco Peaks; shield volcanoes; sinkholes; solution features; Sunset Crater; United States; volcanic features; volcanism; volcanoes DO - http://dx.doi.org/10.1130/2011.2483(23) ER - TY - JOUR T1 - Utah's geologic and geomorphic analogs to Mars; an overview for planetary exploration AN - 1008821110; 2012-041771 AB - Utah offers spectacular geologic features and valuable analog environments and processes for Mars studies. Horizontal strata of the Colorado Plateau are analogous to Mars because the overprint of plate tectonics is minimal, yet the effects of strong ground motion from earthquakes or impacts are preserved in the sedimentary record. The close proximity of analog environments and lack of vegetative cover are advantages for field and remote-sensing studies. Dry, desert climate and modern wind processes of Utah are comparable to Mars and its current surface. Analogs in Utah include eolian, sabkha and saline bodies, glacial, lacustrine, spring, alluvial, fluvial, delta, and outflow channel depositional environments, as well as volcanic landforms and impact craters. Analogous secondary processes producing modification features include: diagenetic concretions, weathering and soils, sinkholes, sapping, knobs and pinnacles, crusts and varnish, and patterned grounds. Utah's physical and chemical environments are analogous to conditions on Mars where water existed and could support microorganisms. The development of Mars includes: ancient and modern depositional records, burial and diagenesis, uplift and tectonic alteration, and modern sculpting or weathering of the surface exposures. Recent satellite images are providing unprecedented details that rival the outcrop scale. Analogs in Utah are prime field localities that can be utilized in planning future robotic and human missions to Mars, and for teaching the next generation of planetary explorers. JF - Special Paper - Geological Society of America AU - Chan, Marjorie A AU - Nicoll, Kathleen AU - Ormoe, Jens AU - Okubo, Chris AU - Komatsu, Goro A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 349 EP - 375 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - United States KW - eolian features KW - lacustrine features KW - terrestrial environment KW - secondary structures KW - impact features KW - astrobiology KW - Mars KW - outflow channels KW - terrestrial analogs KW - volcanic features KW - deltas KW - sediments KW - springs KW - sebkha environment KW - tectonics KW - depositional environment KW - sedimentary structures KW - soils KW - Colorado Plateau KW - clastic sediments KW - arid environment KW - glacial features KW - weathering KW - terrestrial planets KW - planets KW - concretions KW - diagenesis KW - sinkholes KW - rock varnish KW - fluvial features KW - impact craters KW - alluvium KW - Utah KW - geomorphology KW - solution features KW - patterned ground KW - 23:Geomorphology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008821110?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Utah%27s+geologic+and+geomorphic+analogs+to+Mars%3B+an+overview+for+planetary+exploration&rft.au=Chan%2C+Marjorie+A%3BNicoll%2C+Kathleen%3BOrmoe%2C+Jens%3BOkubo%2C+Chris%3BKomatsu%2C+Goro&rft.aulast=Chan&rft.aufirst=Marjorie&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=349&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2822%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 176 N1 - PubXState - CO N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - alluvium; arid environment; astrobiology; clastic sediments; Colorado Plateau; concretions; deltas; depositional environment; diagenesis; eolian features; fluvial features; geomorphology; glacial features; impact craters; impact features; lacustrine features; Mars; outflow channels; patterned ground; planets; rock varnish; sebkha environment; secondary structures; sedimentary structures; sediments; sinkholes; soils; solution features; springs; tectonics; terrestrial analogs; terrestrial environment; terrestrial planets; United States; Utah; volcanic features; weathering DO - http://dx.doi.org/10.1130/2011.2483(22) ER - TY - JOUR T1 - An inventory of potentially habitable environments on Mars; geological and biological perspectives AN - 1008821109; 2012-041770 AB - On Earth, biology, hydrology, and geology are interlinked such that certain types of life are often associated with specific conditions, including rock type, pressure, temperature, and chemistry. Life on Earth has established itself in diverse and extreme niches, presenting the possibility that Mars, too, may hold records of fossilized and/or extant life in diverse environments. Geologic, paleohydrologic, and climatic conditions through the evolution of Mars are similar in many respects to conditions occurring during the evolution of Earth and, as such, may point to environments on Mars with potential to have supported living systems. Here, we discuss examples of those Martian settings. Such extraterrestrial environments should be targeted by international robotic and/or manned missions to explore potential fossilized or extant life on Mars. JF - Special Paper - Geological Society of America AU - Dohm, J M AU - Miyamoto, H AU - Ori, G G AU - Fairen, A G AU - Davila, A F AU - Komatsu, Goro AU - Mahaney, W C AU - Williams, J P AU - Joye, S B AU - Di Achille, G AU - Oehler, D Z AU - Marzo, G A AU - Schulze-Makuch, D AU - Acocella, V AU - Glamoclija, M AU - Pondrelli, M AU - Boston, P AU - Hart, K M AU - Anderson, R C AU - Baker, V R AU - Fink, W AU - Kelleher, B P AU - Furfaro, R AU - Gross, C AU - Hare, T M AU - Frazer, A R AU - Ip, F AU - Allen, C C R AU - Kim, K J AU - Maruyama, S AU - McGuire, P C AU - Netoff, D AU - Parnell, J AU - Wendt, L AU - Wheelock, S J AU - Steele, A AU - Hancock, R G V AU - Havics, R A AU - Costa, P AU - Krinsley, D A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 317 EP - 347 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - chemically precipitated rocks KW - igneous rocks KW - structural controls KW - astrobiology KW - Mars KW - evaporites KW - hydrothermal conditions KW - caverns KW - aquifers KW - terrestrial planets KW - planets KW - habitat KW - sedimentary rocks KW - habitability KW - magmatic complexes KW - marine environment KW - ice KW - lacustrine environment KW - basins KW - Kasei Vallis KW - paleosols KW - vents KW - Tharsis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008821109?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=An+inventory+of+potentially+habitable+environments+on+Mars%3B+geological+and+biological+perspectives&rft.au=Dohm%2C+J+M%3BMiyamoto%2C+H%3BOri%2C+G+G%3BFairen%2C+A+G%3BDavila%2C+A+F%3BKomatsu%2C+Goro%3BMahaney%2C+W+C%3BWilliams%2C+J+P%3BJoye%2C+S+B%3BDi+Achille%2C+G%3BOehler%2C+D+Z%3BMarzo%2C+G+A%3BSchulze-Makuch%2C+D%3BAcocella%2C+V%3BGlamoclija%2C+M%3BPondrelli%2C+M%3BBoston%2C+P%3BHart%2C+K+M%3BAnderson%2C+R+C%3BBaker%2C+V+R%3BFink%2C+W%3BKelleher%2C+B+P%3BFurfaro%2C+R%3BGross%2C+C%3BHare%2C+T+M%3BFrazer%2C+A+R%3BIp%2C+F%3BAllen%2C+C+C+R%3BKim%2C+K+J%3BMaruyama%2C+S%3BMcGuire%2C+P+C%3BNetoff%2C+D%3BParnell%2C+J%3BWendt%2C+L%3BWheelock%2C+S+J%3BSteele%2C+A%3BHancock%2C+R+G+V%3BHavics%2C+R+A%3BCosta%2C+P%3BKrinsley%2C+D&rft.aulast=Dohm&rft.aufirst=J&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=317&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2821%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 369 N1 - PubXState - CO N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - aquifers; astrobiology; basins; caverns; chemically precipitated rocks; evaporites; habitability; habitat; hydrothermal conditions; ice; igneous rocks; Kasei Vallis; lacustrine environment; magmatic complexes; marine environment; Mars; paleosols; planets; sedimentary rocks; structural controls; terrestrial planets; Tharsis; vents DO - http://dx.doi.org/10.1130/2011.2483(21) ER - TY - JOUR T1 - A Mars-oriented image database of hand lens-scale features and textures; the 1996 Skeidararsandur jokulhlaup example AN - 1008821108; 2012-041769 AB - Analysis of geologic materials at the microscale--where we use the term "microscale" to refer to features resolved approximately by a hand lens--has proven to be a powerful strategy to maximize the information gleaned from limited samples, such as on Mars. However, discrimination between processes that leave behind similar traces requires enlightened comparisons to well-characterized analogs. We characterized and imaged several terrestrial analogs of materials produced by volcanic, hydrovolcanic, or cryovolcanic Martian processes at the hand lens scale, and then we produced a convenient tool for the community to access those data for comparisons. We report on the preparation of this Mars-focused image atlas (the Mars Analog Handlens-Scale Image Database), using as an example analog studies of particles deposited by the 1996 Skeidararsandur jokulhlaup (a jokulhlaup is a subglacially generated outwash flood resulting in a sandur, or sheet of outwash sands and gravel). We imaged unconsolidated sediment particles in situ at about hand lens scale and documented their characteristics at six sites along the sandur. Average particle size and number of angular, very angular, and subangular particles decreased with distance from the source; the average sphericity of particles increased slightly; and the range of sphericity values present narrowed with distance. If observed in a region on Mars, this combination of characteristics would be one indicator that subglacially generated outwash flooding was the process responsible for deposition of sediment. The Mars Analog Handlens-Scale Image Database is searchable and can be found on the Geosciences Node of the Planetary Data System at http://an.rsl.wustl.edu/marsanalog/. JF - Special Paper - Geological Society of America AU - Yingst, R A AU - Schmidt, Mariek E AU - Lentz, Rachel C F AU - Janzen, Jason L AU - Kuhlman, Kim R A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 301 EP - 315 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - imagery KW - volcanic rocks KW - outwash KW - igneous rocks KW - Mars KW - Europe KW - terrestrial analogs KW - jokulhlaups KW - sediments KW - data bases KW - microscale KW - hand lens-scale KW - roundness KW - Western Europe KW - clastic sediments KW - textures KW - grain size KW - clasts KW - terrestrial planets KW - pyroclastics KW - planets KW - Skeidararsandur KW - scoria KW - sphericity KW - Mars Analog Handlens-Scale Image Database KW - Iceland KW - particles KW - 06A:Sedimentary petrology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008821108?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=A+Mars-oriented+image+database+of+hand+lens-scale+features+and+textures%3B+the+1996+Skeidararsandur+jokulhlaup+example&rft.au=Yingst%2C+R+A%3BSchmidt%2C+Mariek+E%3BLentz%2C+Rachel+C+F%3BJanzen%2C+Jason+L%3BKuhlman%2C+Kim+R&rft.aulast=Yingst&rft.aufirst=R&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=301&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2820%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 91 N1 - PubXState - CO N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - clastic sediments; clasts; data bases; Europe; grain size; hand lens-scale; Iceland; igneous rocks; imagery; jokulhlaups; Mars; Mars Analog Handlens-Scale Image Database; microscale; outwash; particles; planets; pyroclastics; roundness; scoria; sediments; Skeidararsandur; sphericity; terrestrial analogs; terrestrial planets; textures; volcanic rocks; Western Europe DO - http://dx.doi.org/10.1130/2011.2483(20) ER - TY - JOUR T1 - The marine-target Wetumpka impact structure examined in the field and by shallow core-hole drilling AN - 1008821107; 2012-041768 AB - The Wetumpka impact structure (near the town of Wetumpka, Alabama) has a semicircular crystalline rim that is approximately 5 km in diameter. This marine-target impact structure developed in both poorly consolidated, water-saturated sediments and underlying crystalline basement. Previous studies have described a semicircular, crystalline rim, an interior structure-filling unit, and an exterior disturbed terrain developed within the sedimentary target sequence outside the southwestern part of the central basement crater. Based on new field and drill-core observations, we recognize the following specific structural and lithological features: overturned crystalline rim flap; slumped interior megablock terrain; central polymict breccia (originating as near-field ejecta); interior marine chalk deposits and reworked glauconitic sands (formed by resurge and postimpact deposition); and a collapsed southern part of the rim with overturned flap (mainly developed within the sedimentary target rocks). In this paper, we describe the origin of these features and present a new reconstructed sequence of events. JF - Special Paper - Geological Society of America AU - King, David T, Jr AU - Ormoe, Jens A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 287 EP - 300 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - United States KW - Mooreville Chalk KW - sea water KW - impact features KW - collapse structures KW - Cretaceous KW - debris flows KW - Alabama KW - Wetumpka Crater KW - Upper Cretaceous KW - cores KW - shallow depth KW - sedimentary rocks KW - metamorphic rocks KW - mass movements KW - resurgence KW - drilling KW - breccia KW - impactites KW - basement KW - impact breccia KW - ejecta KW - Mesozoic KW - slumping KW - chalk KW - marine environment KW - target rocks KW - impact craters KW - carbonate rocks KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008821107?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=The+marine-target+Wetumpka+impact+structure+examined+in+the+field+and+by+shallow+core-hole+drilling&rft.au=King%2C+David+T%2C+Jr%3BOrmoe%2C+Jens&rft.aulast=King&rft.aufirst=David&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=287&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2819%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 30 N1 - PubXState - CO N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - Alabama; basement; breccia; carbonate rocks; chalk; collapse structures; cores; Cretaceous; debris flows; drilling; ejecta; impact breccia; impact craters; impact features; impactites; marine environment; mass movements; Mesozoic; metamorphic rocks; Mooreville Chalk; resurgence; sea water; sedimentary rocks; shallow depth; slumping; target rocks; United States; Upper Cretaceous; Wetumpka Crater DO - http://dx.doi.org/10.1130/2011.2483(19) ER - TY - JOUR T1 - Cerro Negro Volcano, Nicaragua; an assessment of geological and potential biological systems on early Mars AN - 1008821106; 2012-041767 AB - Sulfate-rich mineral deposits have been discovered in many locations on Mars through observations by orbiters, landers, and roving spacecraft. It appears that in most cases, these minerals are produced by acid-sulfate weathering of igneous rocks, which may have been a widespread process for the first billion years on Mars. The origin of life on Earth may have occurred in iron-sulfur hydrothermal settings, and early Mars likely had similar environmental conditions. An excellent terrestrial analog for acid-sulfate weathering of Mars-like basalts exists at Cerro Negro, Nicaragua, where acidic sulfur-bearing gases interact with recently erupted basaltic ash in numerous active fumaroles. We investigated the chemistry and mineralogy of the pristine basalts and their chemically weathered products, and we studied the associated microbiological communities as an analog for potential early life on Mars. Measured pH values of condensed volcanic vapors range from -1 to 5, and near-surface temperatures in the fumaroles range from 40 to 400 degrees C. In a few years, fresh basalt can weather to amorphous silica and gypsum, along with lesser amounts of other sulfates (natroalunite and jarosite), Fe-hydroxides, and clays. Altered rocks have up to 35 wt% SO (sub 3) equivalent, similar to the amounts of sulfur reported for Meridiani Planum bedrocks and inferred in other sulfate-bearing bedrock on Mars. Heavily weathered rocks have silica contents up to 80 wt%, similar to silica-rich soils at Gusev crater that possibly formed in hydrothermal environments. Here, we provide preliminary results of our studies and outline the logistics for a field excursion to this Mars analog system. JF - Special Paper - Geological Society of America AU - Hynek, Brian M AU - McCollom, Thomas M AU - Rogers, Karyn L A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 279 EP - 285 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - silicates KW - acid-sulfate weathering KW - Noachian KW - fumaroles KW - astrobiology KW - Mars KW - Nicaragua KW - terrestrial analogs KW - life origin KW - iron KW - chemical reactions KW - silica KW - gypsum KW - oxides KW - geochemistry KW - pH KW - Gusev Crater KW - bedrock KW - Meridiani Planum KW - chemical weathering KW - sulfates KW - weathering KW - iron hydroxides KW - hydrothermal conditions KW - clay minerals KW - terrestrial planets KW - hydroxides KW - planets KW - Cerro Negro KW - metals KW - volcanoes KW - sulfur KW - sheet silicates KW - Central America KW - microorganisms KW - 04:Extraterrestrial geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008821106?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Cerro+Negro+Volcano%2C+Nicaragua%3B+an+assessment+of+geological+and+potential+biological+systems+on+early+Mars&rft.au=Hynek%2C+Brian+M%3BMcCollom%2C+Thomas+M%3BRogers%2C+Karyn+L&rft.aulast=Hynek&rft.aufirst=Brian&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=279&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2818%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 44 N1 - PubXState - CO N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - acid-sulfate weathering; astrobiology; bedrock; Central America; Cerro Negro; chemical reactions; chemical weathering; clay minerals; fumaroles; geochemistry; Gusev Crater; gypsum; hydrothermal conditions; hydroxides; iron; iron hydroxides; life origin; Mars; Meridiani Planum; metals; microorganisms; Nicaragua; Noachian; oxides; pH; planets; sheet silicates; silica; silicates; sulfates; sulfur; terrestrial analogs; terrestrial planets; volcanoes; weathering DO - http://dx.doi.org/10.1130/2011.2483(18) ER - TY - JOUR T1 - Analysis of Antarctic logistics and operations data; results from the Antarctic Search for Meteorites (ANSMET), austral summer season, 2002-2003, with implications for planetary surface operations AN - 1008821097; 2012-041755 AB - The operational and logistical burden associated with putting a team of four scientists in a hostile environment was investigated as part of the Antarctic Search for Meteorites (ANSMET) Project during the austral summer of 2002-2003. Operational time data, when compared with similar data from the Apollo J-series missions, suggest that crew time available to science on future exploration missions will be no more than 20% of the total available surface time, due to the time demands associated with operating in a hostile environment. A comparison of time-distance statistics derived from ANSMET meteorite search traverses to similar traverses from Apollo was inconclusive--there was no clear pattern of similarity or dissimilarity between the two data sets. However, both data sets reinforce the benefits of robust rover capability over simple walking because rovers allow exploration of a wider area for a given period of time when compared to walking. Lastly, mass data for equipment and supplies for a four-person team on the Antarctic polar plateau suggest that supplying a Mars or lunar mission with the necessary supplies for nominal surface operations would take up a significant amount of the mass-to-orbit prior to initiating trans-Mars or lunar injection. JF - Special Paper - Geological Society of America AU - Eppler, Dean B A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 75 EP - 84 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - collecting KW - Moon KW - extreme environments KW - La Paz ice field KW - Pecora ice field KW - geotraverses KW - Mars KW - Apollo Program KW - planetary analogs KW - terrestrial analogs KW - ANSMET Program KW - exploration KW - terrestrial planets KW - planets KW - meteorites KW - Antarctica KW - Antarctic Search for Meteorites Program KW - planning KW - ice fields KW - Apollo 15 KW - Apollo 17 KW - field studies KW - Apollo 16 KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008821097?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Analysis+of+Antarctic+logistics+and+operations+data%3B+results+from+the+Antarctic+Search+for+Meteorites+%28ANSMET%29%2C+austral+summer+season%2C+2002-2003%2C+with+implications+for+planetary+surface+operations&rft.au=Eppler%2C+Dean+B&rft.aulast=Eppler&rft.aufirst=Dean&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=75&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2806%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 11 N1 - PubXState - CO N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - ANSMET Program; Antarctic Search for Meteorites Program; Antarctica; Apollo 15; Apollo 16; Apollo 17; Apollo Program; collecting; exploration; extreme environments; field studies; geotraverses; ice fields; La Paz ice field; Mars; meteorites; Moon; Pecora ice field; planetary analogs; planets; planning; terrestrial analogs; terrestrial planets DO - http://dx.doi.org/10.1130/2011.2483(06) ER - TY - JOUR T1 - Training astronauts to observe Earth from the Space Shuttle and International Space Station AN - 1008821096; 2012-041754 AB - Since the beginning of the U.S. space program, the National Aeronautics and Space Administration (NASA) has trained astronauts in basic earth science topics to support their observations of Earth's surface from low Earth orbit. From its roots in the Apollo geology training campaigns, we describe the evolution of astronaut Earth observation training across human spaceflight programs, with a focus on the training for space shuttle and International Space Station (ISS) missions. Astronauts' Earth observation experiences--both preflight training and interactions with scientists on the ground during spaceflight missions--provide relevant information for defining training requirements for future astronaut exploration missions on other planetary surfaces. JF - Special Paper - Geological Society of America AU - Evans, Cynthia A AU - Wilkinson, M Justin AU - Stefanov, William L AU - Willis, Kim A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 67 EP - 73 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - scale factor KW - astronauts KW - Earth KW - International Space Station KW - government agencies KW - landforms KW - Apollo Program KW - education KW - terrestrial analogs KW - exploration KW - planets KW - NASA KW - spacecraft KW - surface features KW - orbital observations KW - landscapes KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008821096?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Training+astronauts+to+observe+Earth+from+the+Space+Shuttle+and+International+Space+Station&rft.au=Evans%2C+Cynthia+A%3BWilkinson%2C+M+Justin%3BStefanov%2C+William+L%3BWillis%2C+Kim&rft.aulast=Evans&rft.aufirst=Cynthia&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=67&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2805%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 34 N1 - PubXState - CO N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - Apollo Program; astronauts; Earth; education; exploration; government agencies; International Space Station; landforms; landscapes; NASA; orbital observations; planets; scale factor; spacecraft; surface features; terrestrial analogs DO - http://dx.doi.org/10.1130/2011.2483(05) ER - TY - JOUR T1 - Training Apollo astronauts in lunar orbital observations and photography AN - 1008821095; 2012-041753 AB - Planning and implementation of astronaut observations and photography from lunar orbit during the Apollo program were based on two expectations: (1) orbiting astronauts would be able to add to our knowledge by describing lunar features from their unique vantage point, and, (2) as illustrated by the Gemini Earth-orbital missions, expertly obtained photographs would allow us to place detailed information from field exploration into a regional context. To achieve these goals, the astronauts had to be thoroughly familiar with concepts of lunar geology and intellectually prepared to note and document the unexpected. This required mission-specific training to add to their store of knowledge about the Moon. Because the activity was not part of the original program objectives, the training was conducted at the behest of the astronauts. The training time grew from occasional briefings on the early flights to extensive classroom sessions and flyover exercises for a formal "experiment" on the last three missions. This chapter summarizes the historical development and salient results of training the Moon-bound astronauts for these tasks. The astronaut-derived orbital observations and photographs increased our knowledge of the Moon beyond that possible from robotic sensors. Outstanding results include: realization of the limitations of photographic film to depict natural lunar surface colors; description and documentation of unknown features on the lunar farside; observation by Apollo 15 of dark-haloed craters that helped in the selection of the Apollo 17 landing site; and real-time confirmation that the "orange soil" discovered at the Apollo 17 site occurs elsewhere on the Moon. JF - Special Paper - Geological Society of America AU - El-Baz, Farouk A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 49 EP - 65 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - astronauts KW - development KW - Moon KW - Apollo Program KW - landing sites KW - education KW - photography KW - topography KW - objectives KW - farside KW - planning KW - surface features KW - Apollo 11 KW - Apollo 13 KW - orbital observations KW - Apollo 12 KW - Apollo 15 KW - Apollo 14 KW - Apollo 17 KW - Apollo 16 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008821095?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Training+Apollo+astronauts+in+lunar+orbital+observations+and+photography&rft.au=El-Baz%2C+Farouk&rft.aulast=El-Baz&rft.aufirst=Farouk&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=49&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2804%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 49 N1 - PubXState - CO N1 - Document feature - illus. incl. 2 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - Apollo 11; Apollo 12; Apollo 13; Apollo 14; Apollo 15; Apollo 16; Apollo 17; Apollo Program; astronauts; development; education; farside; landing sites; Moon; objectives; orbital observations; photography; planning; surface features; topography DO - http://dx.doi.org/10.1130/2011.2483(04) ER - TY - JOUR T1 - Geologic field training of the Apollo astronauts and implications for future manned exploration AN - 1008821094; 2012-041752 AB - This paper discusses the philosophy and major aspects of the geology training of the Apollo 15, 16, and 17 astronauts. This training concentrated on monthly field trips that were intended to develop the crew's observational skills in recognizing basic geologic structures and rocks and translating observations into an interpretative framework for local geologic evolution. Individual field trips became increasingly mission-like as their training matured. The crews worked with predetermined traverses and progressively added diverse operational aspects, such as proper usage of sampling tools, photo-documentation of pertinent features and rocks, simulation of space-suit mobility, and use of a roving vehicle. These exercises also provided simulations and practice for all major science support functions that would reside in Mission Control during the actual mission. This combined training of surface explorers and ground support will be indispensable in rendering future planetary surface operations as efficient and scientifically rewarding as APOLLO. JF - Special Paper - Geological Society of America AU - Lofgren, Gary E AU - Horz, Friedrich AU - Eppler, Dean B A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 33 EP - 48 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - astronauts KW - Moon KW - geotraverses KW - Apollo Program KW - rovers KW - education KW - simulation KW - exploration KW - lunar samples KW - sampling KW - future KW - Apollo 15 KW - rocks KW - instruments KW - Apollo 17 KW - field studies KW - Apollo 16 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008821094?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Geologic+field+training+of+the+Apollo+astronauts+and+implications+for+future+manned+exploration&rft.au=Lofgren%2C+Gary+E%3BHorz%2C+Friedrich%3BEppler%2C+Dean+B&rft.aulast=Lofgren&rft.aufirst=Gary&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=33&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2803%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 11 N1 - PubXState - CO N1 - Document feature - illus. N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - Apollo 15; Apollo 16; Apollo 17; Apollo Program; astronauts; education; exploration; field studies; future; geotraverses; instruments; lunar samples; Moon; rocks; rovers; sampling; simulation DO - http://dx.doi.org/10.1130/2011.2483(03) ER - TY - JOUR T1 - A new paradigm for advanced planetary field geology developed through analog experiments on Earth AN - 1008821093; 2012-041751 AB - Field geological research, as traditionally practiced on Earth, is an extremely flexible science. Although field geologists plan their traverses ahead of time--nowadays with the advantage of remote-sensing data--initial plans are continually modified in response to observations, such that traverses evolve over time. This research modality differs from that utilized in extreme environments on Earth (e.g., on the ocean floor), on the Martian surface by the mobile laboratories Spirit and Opportunity, and by the Apollo astronauts during their explorations of the Moon. Harsh and alien conditions, time constraints, and resource limitations have led to the development of operational modes that provide a constrained and usually lower science return than traditional field geology. However, emerging plans for renewed human exploration of the Moon, Mars, and near-Earth asteroids serve as an opportunity to invent a new paradigm for advanced planetary field geology that embraces coordinated human and robotic research activities. This approach will introduce an operational flexibility that is more like that of traditional field geology on Earth. In addition, human and robotic collaborations, combined with the integration of new "smart" tools, should provide an augmented reality that leads to even greater science return than traditional field geology. In order to take full advantage of these opportunities when planetary field geology again becomes practical, it is imperative for field geologists on Earth to begin right now to learn how best to incorporate advanced technologies into their research. Geologic studies of analog sites on Earth that employ new technology-enabled strategies rather than traditional research methods provide ideal opportunities to test and refine emerging designs for advanced planetary field geologic studies, as well as to gain new insights into terrestrial geologic processes. These operational experiments will be most informative if they embrace the entire geologic research process--including problem definition, field observation, and laboratory analysis--and not simply field work. The results of such comprehensive research can be used to inform the design of a maximally effective training regimen for future astronaut explorers. JF - Special Paper - Geological Society of America AU - Hodges, Kip V AU - Schmitt, H H A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 17 EP - 31 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - technology KW - asteroids KW - near-Earth asteroids KW - extreme environments KW - geotraverses KW - Mars KW - mapping KW - Apollo Program KW - terrestrial analogs KW - exploration KW - Mars Exploration Rover KW - Victoria Crater KW - near-Earth objects KW - Earth KW - Moon KW - Taurus-Littrow KW - terrestrial planets KW - planets KW - planning KW - robotics KW - extravehicular activity KW - design KW - Apollo 17 KW - field studies KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008821093?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=A+new+paradigm+for+advanced+planetary+field+geology+developed+through+analog+experiments+on+Earth&rft.au=Hodges%2C+Kip+V%3BSchmitt%2C+H+H&rft.aulast=Hodges&rft.aufirst=Kip&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2802%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 37 N1 - PubXState - CO N1 - Document feature - illus. incl. 2 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - Apollo 17; Apollo Program; asteroids; design; Earth; exploration; extravehicular activity; extreme environments; field studies; geotraverses; mapping; Mars; Mars Exploration Rover; Moon; near-Earth asteroids; near-Earth objects; planets; planning; robotics; Taurus-Littrow; technology; terrestrial analogs; terrestrial planets; Victoria Crater DO - http://dx.doi.org/10.1130/2011.2483(02) ER - TY - JOUR T1 - A sortie mission to Schroedinger Basin as reconnaissance for future exploration AN - 1008821015; 2012-041781 AB - The Schroedinger impact basin near the southern pole on the lunar farside (134 degrees E, 75 degrees S) is a young multiring impact basin, and it is well preserved and exposed for scientific study. A crewed sortie-reconnaissance mission to Schroedinger Basin would allow (1) collection of samples in order to obtain an absolute age date for the Schroedinger impact event and to constrain the ages of volcanic events, (2) detailed analysis of pyroclastic materials that mantle the basin's impact melt sheet, (3) study of lunar explosive volcanism mechanics, and (4) installation of a passive seismic array for study of interior activity. The region's diversity of geologic materials and features make it a prime target for human and robotic exploration. A landing site located within the pyroclastic deposit (139.6 degrees E, 75.7 degrees S) allows access to the volcanic vent and inner ring of the basin. Sampling the inner ring, which may be composed of South Pole-Aitken Basin uplift material, would allow absolute dating of the South Pole-Aitken Basin event. Engineering objectives necessary for extending surface stay time for sortie missions or a lunar outpost can be met at this locale. Pyroclastic material is optimal for in situ oxygen production. Demonstrating oxygen production and storage at the landing site would prove technologies for an outpost and leave a cache of consumables for use by future longer-term expeditions. Mission planning is based on Lunar Reconnaissance Orbiter, Lunar Orbiter, Clementine, and SELENE mission data. Extravehicular activities necessary for completing the science objectives require long traverses (24 km and 7.5 h per traverse) for a four-member crew over a 4 d mission. JF - Special Paper - Geological Society of America AU - Bunte, Melissa K AU - Porter, Simon AU - Robinson, Mark S A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 533 EP - 546 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - resources KW - technology KW - volcanic rocks KW - oxygen KW - impact features KW - glasses KW - Lunar Reconnaissance Orbiter KW - igneous rocks KW - geotraverses KW - landing sites KW - melts KW - exploration KW - impact melts KW - impact basins KW - farside KW - sampling KW - robotic exploration KW - future KW - basins KW - basaltic composition KW - human exploration KW - Lunar Orbiter KW - in situ KW - Moon KW - SELENE Mission KW - Schrodinger Basin KW - South Pole-Aitken Basin KW - pyroclastics KW - planning KW - surveys KW - Clementine Program KW - impact craters KW - seismic networks KW - extravehicular activity KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008821015?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=A+sortie+mission+to+Schroedinger+Basin+as+reconnaissance+for+future+exploration&rft.au=Bunte%2C+Melissa+K%3BPorter%2C+Simon%3BRobinson%2C+Mark+S&rft.aulast=Bunte&rft.aufirst=Melissa&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=533&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2832%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 37 N1 - PubXState - CO N1 - Document feature - illus. incl. 2 tables, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - basaltic composition; basins; Clementine Program; exploration; extravehicular activity; farside; future; geotraverses; glasses; human exploration; igneous rocks; impact basins; impact craters; impact features; impact melts; in situ; landing sites; Lunar Orbiter; Lunar Reconnaissance Orbiter; melts; Moon; oxygen; planning; pyroclastics; resources; robotic exploration; sampling; Schrodinger Basin; seismic networks; SELENE Mission; South Pole-Aitken Basin; surveys; technology; volcanic rocks DO - http://dx.doi.org/10.1130/2011.2483(32) ER - TY - JOUR T1 - Plan for a human expedition to Marius Hills and its implications for viable surface exploration architecture AN - 1008821012; 2012-041780 AB - In response to the need to develop science-conducive architectures for future human exploration of particularly interesting targets on lunar and planetary surfaces, we have developed scenarios for a geological expedition to Marius Hills within current constraints of week-long sortie missions. This area has a dense nest of volcano-tectonic features representing the range of mare volcanic structures, which is one of the reasons why it is so compelling. Two distinct episodes of flood basaltic volcanism are represented, along with volcanic shields, domes, cones, rilles, wrinkle ridges, floor fractures, and a magnetic swirl anomaly. We found two potential landing sites (constrained to 10 km radius) in the southwestern portion of Marius Hills that would allow access to examples of most of the features of interest. We describe the geological context, resulting investigations, daily traverses, and survey/sample sites along those routes, in detail, as well as the required tools, instruments, and surface activities. The resulting science requirements, for a minimum of two rovers plus a few hundred kilograms of science payload, along with implications for a science-conducive architecture, are considered. JF - Special Paper - Geological Society of America AU - Clark, P E AU - Bleacher, Jacob E AU - Petro, N AU - Mest, S Y1 - 2011 PY - 2011 DA - 2011 SP - 519 EP - 532 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - Lunar Orbiter Laser Altimeter KW - flood basalts KW - volcanic rocks KW - Lunar Reconnaissance Orbiter KW - igneous rocks KW - Lunar Reconnaissance Orbiter Camera KW - wrinkle ridges KW - landing sites KW - terrestrial analogs KW - exploration KW - fractures KW - volcanic features KW - basalts KW - Marius Hills KW - tectonics KW - shield volcanoes KW - Lunar Orbiter KW - rilles KW - Moon KW - magnetic anomalies KW - expeditions KW - planning KW - volcanoes KW - mare basalts KW - domes KW - cones KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008821012?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Plan+for+a+human+expedition+to+Marius+Hills+and+its+implications+for+viable+surface+exploration+architecture&rft.au=Clark%2C+P+E%3BBleacher%2C+Jacob+E%3BPetro%2C+N%3BMest%2C+S&rft.aulast=Clark&rft.aufirst=P&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=519&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2831%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 15 N1 - PubXState - CO N1 - Document feature - illus. incl. 6 tables, geol. sketch maps N1 - Last updated - 2012-07-19 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - basalts; cones; domes; expeditions; exploration; flood basalts; fractures; igneous rocks; landing sites; Lunar Orbiter; Lunar Orbiter Laser Altimeter; Lunar Reconnaissance Orbiter; Lunar Reconnaissance Orbiter Camera; magnetic anomalies; mare basalts; Marius Hills; Moon; planning; rilles; shield volcanoes; tectonics; terrestrial analogs; volcanic features; volcanic rocks; volcanoes; wrinkle ridges DO - http://dx.doi.org/10.1130/2011.2483(31) ER - TY - JOUR T1 - Human exploration of the Gruithuisen Domes AN - 1008821010; 2012-041779 AB - The Gruithuisen region in northern Oceanus Procellarum on the Moon contains three distinctive domes interpreted as nonmare volcanic features of Imbrian age. A 4 d extravehicular activity (EVA), four-astronaut sortie mission to explore these enigmatic features and the surrounding terrain provides the opportunity to address key outstanding lunar science questions. The landing site is on the mare south of Gruithuisen 3 (36.22 degrees N, 40.60 degrees W). From this site, diverse geologic terrains and features are accessible, including highlands, dome material, mare basalts, multiple craters, small rilles, and a negative topographic feature of unknown origin. Preliminary mission planning is based on Clementine multispectral data, Lunar Prospector geochemical estimates, and high-resolution (0.5 m/pixel) stereo images from the Lunar Reconnaissance Orbiter Narrow Angle Camera. Science objectives for the mission include: (1) determining the nature of the domes, (2) identifying and measuring the distribution of any potassium, rare earth elements, and phosphorus (KREEP)- and thorium-rich materials, (3) collecting samples for age dating of key units to investigate the evolution of the region, and (4) deploying a passive seismic grid as part of a global lunar network. Satisfying the science objectives requires 7 h, approximately 20 km round-trip EVAs, and significant time driving on slopes up to approximately 15 degrees . JF - Special Paper - Geological Society of America AU - Braden, Sarah E AU - Robinson, Mark S A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 507 EP - 518 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - volcanic rocks KW - Lunar Reconnaissance Orbiter KW - igneous rocks KW - Lunar Reconnaissance Orbiter Camera KW - Lunar Prospector Program KW - geotraverses KW - landing sites KW - lunar craters KW - exploration KW - multispectral analysis KW - topography KW - sampling KW - basalts KW - rilles KW - Moon KW - alkali metals KW - Oceanus Procellarum KW - highlands KW - Gruithuisen Domes KW - maria KW - Imbrian KW - KREEP KW - objectives KW - planning KW - metals KW - potassium KW - Clementine Program KW - relief inversion KW - domes KW - extravehicular activity KW - image analysis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008821010?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Human+exploration+of+the+Gruithuisen+Domes&rft.au=Braden%2C+Sarah+E%3BRobinson%2C+Mark+S&rft.aulast=Braden&rft.aufirst=Sarah&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=507&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2830%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 43 N1 - PubXState - CO N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - alkali metals; basalts; Clementine Program; domes; exploration; extravehicular activity; geotraverses; Gruithuisen Domes; highlands; igneous rocks; image analysis; Imbrian; KREEP; landing sites; lunar craters; Lunar Prospector Program; Lunar Reconnaissance Orbiter; Lunar Reconnaissance Orbiter Camera; maria; metals; Moon; multispectral analysis; objectives; Oceanus Procellarum; planning; potassium; relief inversion; rilles; sampling; topography; volcanic rocks DO - http://dx.doi.org/10.1130/2011.2483(30) ER - TY - JOUR T1 - Field guide to exhumed paleochannels near Green River, Utah; terrestrial analogs for sinuous ridges on Mars AN - 1008821008; 2012-041778 AB - Multiple cemented channel-fill deposits from the Late Jurassic and Early Cretaceous, once buried beneath 2400 m of sediment, are now exposed at the surface in arid east-central Utah due to erosion of the less resistant surrounding material. This field guide focuses on examples near the town of Green River where there is public access to several different types of exhumed paleochannels within a small geographic region. We describe the geologic setting of these landforms based on previous work, discuss the relevance to analogous sinuous ridges that are interpreted to be inverted paleochannels on Mars, and present a detailed road log with descriptive stops in Emery County, Utah. JF - Special Paper - Geological Society of America AU - Williams, Rebecca M E AU - Irwin, Rossman P, III AU - Zimbelman, James R AU - Chidsey, Thomas C, Jr AU - Eby, David E A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 483 EP - 505 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - United States KW - sinuous ridges KW - Cretaceous KW - Mars KW - landforms KW - terrestrial analogs KW - road log KW - Cedar Mountain Formation KW - Morrison Formation KW - exhumation KW - Lower Cretaceous KW - meanders KW - Upper Jurassic KW - Jurassic KW - Brushy Basin Shale Member KW - cementation KW - paleochannels KW - Mars Orbiter Camera KW - Mesozoic KW - terrestrial planets KW - Salt Wash Sandstone Member KW - planets KW - Green River KW - Emery County Utah KW - diagenesis KW - fluvial features KW - relief inversion KW - Utah KW - field studies KW - channel-fill KW - 23:Geomorphology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008821008?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Field+guide+to+exhumed+paleochannels+near+Green+River%2C+Utah%3B+terrestrial+analogs+for+sinuous+ridges+on+Mars&rft.au=Williams%2C+Rebecca+M+E%3BIrwin%2C+Rossman+P%2C+III%3BZimbelman%2C+James+R%3BChidsey%2C+Thomas+C%2C+Jr%3BEby%2C+David+E&rft.aulast=Williams&rft.aufirst=Rebecca+M&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=483&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2829%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 135 N1 - PubXState - CO N1 - Document feature - illus. incl. block diags., geol. sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - Brushy Basin Shale Member; Cedar Mountain Formation; cementation; channel-fill; Cretaceous; diagenesis; Emery County Utah; exhumation; field studies; fluvial features; Green River; Jurassic; landforms; Lower Cretaceous; Mars; Mars Orbiter Camera; meanders; Mesozoic; Morrison Formation; paleochannels; planets; relief inversion; road log; Salt Wash Sandstone Member; sinuous ridges; terrestrial analogs; terrestrial planets; United States; Upper Jurassic; Utah DO - http://dx.doi.org/10.1130/2011.2483(29) ER - TY - JOUR T1 - Terrestrial analogs in the Mojave Desert of the Southwestern United States for volcanic, sedimentary, and tectonic processes on other planets AN - 1008821006; 2012-041777 AB - A critical factor required to unravel processes that have shaped other planets is a solid understanding of geologic processes as they operate on Earth, and a logical way to understand those processes is to go into the field and view them. We provide a field guide to three locations: (1) Cima volcanic field, south of Baker, California; (2) Rainbow Basin, north of Barstow, California; and (3) Red Rock Canyon and vicinity in Nevada and California, all within the Mojave Desert of the southwestern United States. These locations highlight three processes that have affected Earth and other planets: volcanism, sedimentation, and tectonism. Volcanism is explored by looking at the basaltic cinder cones, lava flows, lava tube, and xenoliths of the later Tertiary and Quaternary Cima volcanic field. Felsic ash and volcaniclastic material interbedded with lacustrine, siliciclastic sedimentary rocks are examined in Rainbow Basin, a Tertiary strike-slip basin. The interplay between volcanic and sedimentary processes is examined at this locality, while deformation of the basin makes it ideal for examining structural and tectonic aspects. Broader-scale tectonism is observed in the hanging wall (Ordovician carbonates) and footwall (Jurassic sandstone) rocks to the Keystone thrust fault. The fault is visible given the color contrast between the lower (white and red) and upper (gray) plates. In Red Rock Canyon, Nevada, exposures of the Jurassic Aztec Sandstone display excellent examples of large-scale cross-stratification from eolian dune deposition. Each locale holds lessons pertinent for the study of processes that have operated on other planets in the solar system. JF - Special Paper - Geological Society of America AU - Lang, Nicholas P AU - Fedo, Christopher M AU - Whisner, S Christopher A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 465 EP - 482 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - United States KW - volcanic rocks KW - igneous rocks KW - siliciclastics KW - field trips KW - Rainbow Basin KW - areal geology KW - terrestrial analogs KW - road log KW - Cenozoic KW - California KW - lava tubes KW - cross-stratification KW - volcaniclastics KW - volcanic features KW - sedimentary rocks KW - Aztec Sandstone KW - volcanism KW - Mojave Desert KW - inclusions KW - basalts KW - basins KW - tectonics KW - volcanic ash KW - Cima volcanic field KW - sedimentary structures KW - San Bernardino County California KW - Nevada KW - faults KW - xenoliths KW - lava flows KW - Jurassic KW - sedimentation KW - cinder cones KW - Southwestern U.S. KW - Keystone Fault KW - Mesozoic KW - pyroclastics KW - planar bedding structures KW - lacustrine environment KW - Red Rock Canyon KW - carbonate rocks KW - 04:Extraterrestrial geology KW - 13:Areal geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008821006?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Terrestrial+analogs+in+the+Mojave+Desert+of+the+Southwestern+United+States+for+volcanic%2C+sedimentary%2C+and+tectonic+processes+on+other+planets&rft.au=Lang%2C+Nicholas+P%3BFedo%2C+Christopher+M%3BWhisner%2C+S+Christopher&rft.aulast=Lang&rft.aufirst=Nicholas&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=465&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2828%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 61 N1 - PubXState - CO N1 - Document feature - illus. incl. geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - areal geology; Aztec Sandstone; basalts; basins; California; carbonate rocks; Cenozoic; Cima volcanic field; cinder cones; cross-stratification; faults; field trips; igneous rocks; inclusions; Jurassic; Keystone Fault; lacustrine environment; lava flows; lava tubes; Mesozoic; Mojave Desert; Nevada; planar bedding structures; pyroclastics; Rainbow Basin; Red Rock Canyon; road log; San Bernardino County California; sedimentary rocks; sedimentary structures; sedimentation; siliciclastics; Southwestern U.S.; tectonics; terrestrial analogs; United States; volcanic ash; volcanic features; volcanic rocks; volcaniclastics; volcanism; xenoliths DO - http://dx.doi.org/10.1130/2011.2483(28) ER - TY - JOUR T1 - Field exercises in the Pinacate volcanic field, Mexico; an analog for planetary volcanism AN - 1008821004; 2012-041776 AB - The Pinacate volcanic field is approximately 330 km SSW of Phoenix, and it is a popular destination for volcanology and planetary geology field trips. The volcanic field, located on the Pinacate Biosphere Reserve in Sonora, Mexico, is a 1500 km (super 2) basaltic field including a shield volcano, lava tubes, maars, a tuff cone, cinder cones, pahoehoe and 'a'a lava flows as young as 12 ka, and phreatomagmatic constructs as young as 32 ka. We developed an image-based set of exercises for a 2 day field trip focusing on (1) Crater Elegante, a maar crater, (2) pahoehoe and 'a'a flows near Tecolote Cone campground, (3) the complex eruptive history of Mayo (cinder) Cone, and (4) Cerro Colorado tuff cone. This paper discusses exercises to teach concepts in visible and radar image interpretation and planetary volcanology, and provides an overview of the field trip. JF - Special Paper - Geological Society of America AU - Williams, David A AU - Fagents, Sarah A AU - Greeley, Ronald AU - McHone, John F A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 449 EP - 464 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - Sonora Mexico KW - lava flows KW - Pinacate Biosphere Reserve KW - field trips KW - Pinacate volcanic field KW - cinder cones KW - education KW - terrestrial analogs KW - lava tubes KW - volcanic features KW - Mexico KW - tuff cones KW - lava KW - volcanism KW - maars KW - phreatomagmatism KW - volcanoes KW - pahoehoe KW - shield volcanoes KW - aa lava KW - field studies KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008821004?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Field+exercises+in+the+Pinacate+volcanic+field%2C+Mexico%3B+an+analog+for+planetary+volcanism&rft.au=Williams%2C+David+A%3BFagents%2C+Sarah+A%3BGreeley%2C+Ronald%3BMcHone%2C+John+F&rft.aulast=Williams&rft.aufirst=David&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=449&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2827%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 31 N1 - PubXState - CO N1 - Document feature - illus. N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - aa lava; cinder cones; education; field studies; field trips; lava; lava flows; lava tubes; maars; Mexico; pahoehoe; phreatomagmatism; Pinacate Biosphere Reserve; Pinacate volcanic field; shield volcanoes; Sonora Mexico; terrestrial analogs; tuff cones; volcanic features; volcanism; volcanoes DO - http://dx.doi.org/10.1130/2011.2483(27) ER - TY - JOUR T1 - NASA volcanology field workshops on Hawai'i; Part 2, Understanding lava flow morphology and flow field emplacement AN - 1008821002; 2012-041775 AB - The Big Island of Hawai'i presents ample opportunities for young planetary volcanologists to gain firsthand field experience in the analysis of analogs to landforms seen on Mercury, Venus, the Moon, Mars, and Io. In this contribution, we focus on a subset of the specific features that are included in the planetary volcanology field workshops described in the previous chapter in this volume. In particular, we discuss how remote-sensing data and field localities in Hawai'i can help a planetary geologist to gain expertise in the analysis of lava flows and lava flow fields, to understand the best sensor for a specific application, to recognize the ways in which different data sets can be used synergistically for remote interpretations of lava flows, and to gain a deeper appreciation for the spatial scale of features that might be imaged in the planetary context. JF - Special Paper - Geological Society of America AU - Mouginis-Mark, Peter J AU - Fagents, Sarah A AU - Rowland, Scott K A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 435 EP - 448 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - United States KW - Hawaii Island KW - Venus KW - government agencies KW - Io Satellite KW - Mars KW - landforms KW - Mauna Loa KW - Galilean satellites KW - terrestrial analogs KW - volcanic features KW - Mercury Planet KW - satellites KW - Kilauea KW - lava flows KW - Moon KW - Hawaii County Hawaii KW - surface textures KW - Hawaii KW - East Pacific Ocean Islands KW - volcanology KW - terrestrial planets KW - morphology KW - planets KW - NASA KW - Oceania KW - volcanoes KW - Polynesia KW - remote sensing KW - field studies KW - 24:Quaternary geology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008821002?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=NASA+volcanology+field+workshops+on+Hawai%27i%3B+Part+2%2C+Understanding+lava+flow+morphology+and+flow+field+emplacement&rft.au=Mouginis-Mark%2C+Peter+J%3BFagents%2C+Sarah+A%3BRowland%2C+Scott+K&rft.aulast=Mouginis-Mark&rft.aufirst=Peter&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=435&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2826%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 69 N1 - PubXState - CO N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - East Pacific Ocean Islands; field studies; Galilean satellites; government agencies; Hawaii; Hawaii County Hawaii; Hawaii Island; Io Satellite; Kilauea; landforms; lava flows; Mars; Mauna Loa; Mercury Planet; Moon; morphology; NASA; Oceania; planets; Polynesia; remote sensing; satellites; surface textures; terrestrial analogs; terrestrial planets; United States; Venus; volcanic features; volcanoes; volcanology DO - http://dx.doi.org/10.1130/2011.2483(26) ER - TY - JOUR T1 - NASA volcanology field workshops on Hawai'i; Part 1, Description and history AN - 1008821000; 2012-041774 AB - We have organized ten National Aeronautics and Space Administration (NASA)-sponsored planetary volcanology field workshops on Hawai'i since 1992, providing an opportunity for almost 140 NASA-funded graduate students, postdocs, and junior faculty to view basaltic volcano features up close in the company of both terrestrial and planetary volcanologists. Most of the workshops have been thematic, for example, concentrating on large structural features (rift zones and calderas) or lava flows, or features best viewed in high-spatial-resolution data, but they always include a broad set of topics. The workshops purposely involve long field days--an appreciation of scale is important for planetary scientists, particularly if they are or will be working with slow-moving rovers. Our goals are to give these young scientists a strong background in basaltic volcanology and provide the chance to view eruptive and volcano-structural features up close so that they can compare the appearance of these features in the field to their representations in state-of-the-art remote-sensing images, and relate them in turn to analogous planetary features. In addition, the workshop enables the participants to start a collection of field photographs and observations that they can use in future research and teaching. An added benefit is that the participants interact with each other, forging collaborations that we hope will persist throughout their careers. JF - Special Paper - Geological Society of America AU - Rowland, Scott K AU - Mouginis-Mark, Peter J AU - Fagents, Sarah A A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 401 EP - 434 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - United States KW - graduate-level education KW - Hawaii Island KW - volcanic rocks KW - igneous rocks KW - government agencies KW - education KW - lava tubes KW - volcanic features KW - Kilauea KW - basaltic composition KW - Puu Oo KW - lava flows KW - rift zones KW - Hawaii County Hawaii KW - Mauna Ulu KW - lava channels KW - Hawaii KW - East Pacific Ocean Islands KW - cinder cones KW - planetary analogs KW - volcanology KW - calderas KW - NASA KW - Oceania KW - volcanoes KW - Polynesia KW - field studies KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008821000?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=NASA+volcanology+field+workshops+on+Hawai%27i%3B+Part+1%2C+Description+and+history&rft.au=Rowland%2C+Scott+K%3BMouginis-Mark%2C+Peter+J%3BFagents%2C+Sarah+A&rft.aulast=Rowland&rft.aufirst=Scott&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=401&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2825%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 136 N1 - PubXState - CO N1 - Document feature - illus. incl. sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - basaltic composition; calderas; cinder cones; East Pacific Ocean Islands; education; field studies; government agencies; graduate-level education; Hawaii; Hawaii County Hawaii; Hawaii Island; igneous rocks; Kilauea; lava channels; lava flows; lava tubes; Mauna Ulu; NASA; Oceania; planetary analogs; Polynesia; Puu Oo; rift zones; United States; volcanic features; volcanic rocks; volcanoes; volcanology DO - http://dx.doi.org/10.1130/2011.2483(25) ER - TY - JOUR T1 - The NASA Spaceward Bound field training curriculum AN - 1008820941; 2012-041759 AB - A comprehensive field training curriculum was developed and tested during the 2006, 2008, 2009, and 2010 National Aeronautics and Space Administration (NASA) Spaceward Bound missions at the Mars Desert Research Station (MDRS). The curriculum was developed to train teachers and students in fundamentals of Moon and Mars analog station operations, logistics, field work, and scientific investigation. The curriculum is composed of background content, directions, lesson plans, suggestions, protocols, images, diagrams, figures, checklists, worksheets, experiments, field missions, and references. To date, 48 individuals have participated in Spaceward Bound missions at MDRS, and 18 have successfully tested the curriculum. Based on our analysis and student feedback, we conclude that the Spaceward Bound curriculum is highly useful in training teachers and students in aspects of astrobiology, field science, and Mars exploration, and that MDRS is an ideal location for its use. JF - Special Paper - Geological Society of America AU - Rask, Jon C AU - Heldmann, Jennifer AU - Smith, Heather AU - Battler, Melissa AU - McKay, Christopher P A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 157 EP - 163 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - United States KW - programs KW - graduate-level education KW - government agencies KW - astrobiology KW - Mars KW - education KW - teacher education KW - exploration KW - terrestrial planets KW - planets KW - college-level education KW - NASA KW - Spaceward Bound Program KW - curricula KW - Utah KW - Mars Desert Research Station KW - Mars analogs KW - field studies KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008820941?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=The+NASA+Spaceward+Bound+field+training+curriculum&rft.au=Rask%2C+Jon+C%3BHeldmann%2C+Jennifer%3BSmith%2C+Heather%3BBattler%2C+Melissa%3BMcKay%2C+Christopher+P&rft.aulast=Rask&rft.aufirst=Jon&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=157&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2810%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 10 N1 - PubXState - CO N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - astrobiology; college-level education; curricula; education; exploration; field studies; government agencies; graduate-level education; Mars; Mars analogs; Mars Desert Research Station; NASA; planets; programs; Spaceward Bound Program; teacher education; terrestrial planets; United States; Utah DO - http://dx.doi.org/10.1130/2011.2483(10) ER - TY - JOUR T1 - Habitat dust contamination at a Mars analog AN - 1008820939; 2012-041758 AB - After the high-radiation environment and the low gravity field on Mars, dust is arguably the next biggest environmental hazard facing a manned mission to Mars. The seriousness of this threat is still being studied with robotic missions. At its most benign, Martian dust the work undertaken were recorded to study their effects on dust contamination. We found that more than 50 g of dust and soil were transported into the Mars Desert Research Station (MDRS) during the 12 EVAs (extravehicular activities) that were measured. The largest amount of contamination from EVA activity was due to open-cockpit vehicle travel and depended strongly on the terrain over which the EVA was conducted. Based on first-order dust dynamics modeling, similar behaviors are expected on Mars. JF - Special Paper - Geological Society of America AU - Bos, Brent J AU - Scott, Dave J AU - Metzger, Stephen M A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 137 EP - 155 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - United States KW - Global Positioning System KW - geotraverses KW - suspended materials KW - Mars KW - simulation KW - mitigation KW - background radiation KW - sediments KW - velocity KW - particulate materials KW - experimental studies KW - clastic sediments KW - grain size KW - trajectories KW - atmosphere KW - rovers KW - terrestrial planets KW - models KW - planets KW - habitat KW - dust KW - natural hazards KW - robotics KW - risk assessment KW - Utah KW - extravehicular activity KW - Mars Desert Research Station KW - Mars analogs KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008820939?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Habitat+dust+contamination+at+a+Mars+analog&rft.au=Bos%2C+Brent+J%3BScott%2C+Dave+J%3BMetzger%2C+Stephen+M&rft.aulast=Bos&rft.aufirst=Brent&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=137&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2809%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 28 N1 - PubXState - CO N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - atmosphere; background radiation; clastic sediments; dust; experimental studies; extravehicular activity; geotraverses; Global Positioning System; grain size; habitat; Mars; Mars analogs; Mars Desert Research Station; mitigation; models; natural hazards; particulate materials; planets; risk assessment; robotics; rovers; sediments; simulation; suspended materials; terrestrial planets; trajectories; United States; Utah; velocity DO - http://dx.doi.org/10.1130/2011.2483(09) ER - TY - JOUR T1 - Robotic recon for human exploration; method, assessment, and lessons learned AN - 1008820936; 2012-041757 AB - Robotic rovers can be used as advance scouts to significantly improve scientific and technical return of planetary surface exploration. Robotic scouting, or "robotic recon," involves using a robot to collect ground-level data prior to human field activity. The data collected and knowledge acquired through recon can be used to refine traverse planning, reduce operational risk, and increase crew productivity. To understand how robotic recon can benefit human exploration, we conducted a series of simulated planetary robotic missions at analog sites. These mission simulations were designed to: (1) identify and quantify operational requirements for robotic recon in advance of human activity; (2) identify and quantify ground control and science team requirements for robotic recon; and (3) identify capability, procedure, and training requirements for human explorers to draw maximum benefit from robotic recon during vehicular traverses and on-foot extravehicular activities (EVA). Our studies indicate that robotic recon can be beneficial to crew, improving preparation, situational awareness, and productivity in the field. This is particularly true when traverse plans contain significant unknowns that can be resolved by recon, such as target access and station/activity priority. In this paper, we first present the assumptions and major questions related to robotic reconnaissance. We detail our system design, including the configuration of our recon robot, the ground data system used for operation, ground control organization, and operational time lines. Finally, we describe the design and results from an experiment to assess robotic recon, discuss lessons learned, and identify directions for future work. JF - Special Paper - Geological Society of America AU - Bualat, Maria G AU - Abercromby, Andrew F AU - Allan, Mark AU - Bouyssounouse, Xavier AU - Deans, Matthew C AU - Fong, Terrence AU - Flueckiger, Lorenzo AU - Hodges, Kip V AU - Hurtado, Jose, Jr AU - Keely, Leslie AU - Kobayashi, Linda AU - Landis, Rob AU - Lee, Pascal C AU - Lee, Susan Y AU - Lees, David AU - Pacis, Estrellina AU - Park, Eric AU - Pedersen, Liam AU - Schreckenghost, Debra AU - Smith, Trey AU - To, Vinh AU - Utz, Hans Y1 - 2011 PY - 2011 DA - 2011 SP - 117 EP - 135 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - United States KW - government agencies KW - geotraverses KW - Grant County Washington KW - Moffett Field KW - education KW - simulation KW - California KW - Ames Research Center KW - Moses Lake KW - Black Point lava flow KW - Washington KW - monitoring KW - human activity KW - rovers KW - planetary analogs KW - planning KW - NASA KW - Arizona KW - robotics KW - extravehicular activity KW - Marscape KW - ground control KW - design KW - field studies KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008820936?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Robotic+recon+for+human+exploration%3B+method%2C+assessment%2C+and+lessons+learned&rft.au=Bualat%2C+Maria+G%3BAbercromby%2C+Andrew+F%3BAllan%2C+Mark%3BBouyssounouse%2C+Xavier%3BDeans%2C+Matthew+C%3BFong%2C+Terrence%3BFlueckiger%2C+Lorenzo%3BHodges%2C+Kip+V%3BHurtado%2C+Jose%2C+Jr%3BKeely%2C+Leslie%3BKobayashi%2C+Linda%3BLandis%2C+Rob%3BLee%2C+Pascal+C%3BLee%2C+Susan+Y%3BLees%2C+David%3BPacis%2C+Estrellina%3BPark%2C+Eric%3BPedersen%2C+Liam%3BSchreckenghost%2C+Debra%3BSmith%2C+Trey%3BTo%2C+Vinh%3BUtz%2C+Hans&rft.aulast=Bualat&rft.aufirst=Maria&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=117&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2808%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 15 N1 - PubXState - CO N1 - Document feature - illus. incl. 4 tables, sketch maps N1 - Last updated - 2012-07-19 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - Ames Research Center; Arizona; Black Point lava flow; California; design; education; extravehicular activity; field studies; geotraverses; government agencies; Grant County Washington; ground control; human activity; Marscape; Moffett Field; monitoring; Moses Lake; NASA; planetary analogs; planning; robotics; rovers; simulation; United States; Washington DO - http://dx.doi.org/10.1130/2011.2483(08) ER - TY - JOUR T1 - Motives, methods, and essential preparation for planetary field geology on the Moon and Mars AN - 1008820925; 2012-041750 AB - Future lunar exploration will provide opportunities to expand the human scientific exploration of the Moon and, eventually, Mars. Planning for renewed field exploration of the Moon entails the selection, training, and capabilities of explorers; selection of landing sites; and adoption of an operational approach to extravehicular activity. Apollo program geological exploration, and subsequent analysis and interpretation of findings and collected samples underpin our current understanding of lunar origin and history. That understanding continues to provide new and important insights into the early histories of Earth and other bodies in the solar system, particularly during the period when life formed and began to evolve on Earth and possibly on Mars. Specific new lunar exploration objectives include: (1) testing the consensus "giant impact" hypothesis for the origin of the Moon; (2) testing the consensus impact "cataclysm" hypothesis; (3) determining the temporal flux of large impacts in the inner solar system; and (4) investigating the internal structure of the Moon. Apollo samples also identified significant and potentially commercial lunar resources that could help satisfy future demand for both terrestrial energy alternatives and space consumables. Equipment necessary for successful exploration includes that required for sampling, sample documentation and preservation, communications, mobility, and position knowledge. Easily used active geophysical, portable geochemical, and in situ petrographic equipment can greatly enhance the scientific and operational returns of extended exploration compared to that possible during the Apollo program. JF - Special Paper - Geological Society of America AU - Schmitt, H H AU - Snoke, A W AU - Helper, M A AU - Hurtado, J M AU - Hodges, Kip V AU - Rice, J W, Jr A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 1 EP - 15 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - robots KW - resources KW - impact features KW - igneous rocks KW - Mars KW - mapping KW - Apollo Program KW - landing sites KW - education KW - exploration KW - sampling KW - geochemistry KW - preparation KW - Moon KW - geophysical methods KW - rovers KW - terrestrial planets KW - planets KW - lunar samples KW - planning KW - surveys KW - impact craters KW - regolith KW - instruments KW - field studies KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008820925?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Motives%2C+methods%2C+and+essential+preparation+for+planetary+field+geology+on+the+Moon+and+Mars&rft.au=Schmitt%2C+H+H%3BSnoke%2C+A+W%3BHelper%2C+M+A%3BHurtado%2C+J+M%3BHodges%2C+Kip+V%3BRice%2C+J+W%2C+Jr&rft.aulast=Schmitt&rft.aufirst=H&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2801%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 37 N1 - PubXState - CO N1 - Document feature - illus. N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - Apollo Program; education; exploration; field studies; geochemistry; geophysical methods; igneous rocks; impact craters; impact features; instruments; landing sites; lunar samples; mapping; Mars; Moon; planets; planning; preparation; regolith; resources; robots; rovers; sampling; surveys; terrestrial planets DO - http://dx.doi.org/10.1130/2011.2483(01) ER - TY - JOUR T1 - Analogs for planetary exploration AN - 1008820922; 2012-041749 JF - Special Paper - Geological Society of America A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 567 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - terrestrial planets KW - planets KW - Moon KW - Mars KW - planetary analogs KW - exploration KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008820922?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2011-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Analogs+for+planetary+exploration&rft.title=Analogs+for+planetary+exploration&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2834%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - PubXState - CO N1 - SuppNotes - Individual papers are cited separately; includes CD ROM N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - exploration; Mars; Moon; planetary analogs; planets; terrestrial planets DO - http://dx.doi.org/10.1130/2011.2483(34) ER - TY - JOUR T1 - Advanced regional-scale scenarios for lunar surface exploration AN - 1008820585; 2012-041782 AB - The motivation for this study was to create lunar surface exploration scenarios that would support current science needs, as captured in the Lunar Exploration Analysis Group (LEAG) Roadmap for Lunar Exploration. A science-driven capability to meet those needs required enhanced capability, relative to the Apollo J missions, to provide a broader field context for (1) improved interpretation of samples and measurements; (2) greater flexibility in the selection and nature of activities at field stations; as well as (3) greater potential for breakthrough science. Here, we offer advanced regional-scale (hundreds of kilometers) surface exploration scenarios, essentially design reference missions, for three high-priority targets representing the broadest differences in the nature and distribution of geological features. South Pole-Aitken Basin is the largest and oldest confirmed lunar impact basin. Covering most of the farside southern hemisphere and >2000 km in diameter, it contains extraordinarily diverse features and geochemical anomalies that are widely scattered and thus would require several regional-scale missions. Tsiolkovsky is an anomaly among farside craters: It is mare-filled in the thickest portion of farside crust, young, and has well-preserved impact structures, yet it is surrounded by the ancient Tsiolkovsky-Stark Basin. Aristarchus Plateau is a tectonically uplifted plateau associated with the formation of Imbrium Basin, and it is found on a concentric ring of basin. Features encompassing the entire range of mare volcanism activity in style and age are found either on the relatively compact plateau or within hundreds of kilometers in surrounding western Oceanus Procellarum. Our regional-scale architecture would allow science objectives for study of Aristarchus Plateau or Tsiolkovsky to be addressed from one landing site conveniently located on the target, while South Pole-Aitken Basin would require several missions to achieve such objectives. We describe the geological context and resulting investigations, as well as the required tools, instruments, and activities. We assumed, as initially instructed, science need-driven capabilities at least a generation beyond the Apollo J missions, i.e., the availability of a minimum of two pressurized rovers capable of hundreds of kilometers driving range at average speeds of 10-15 kph (without recharge), four crew, and 700 kg of science payload. The implications of such science-conducive architecture in the context of other architectures under consideration are discussed. JF - Special Paper - Geological Society of America AU - Clark, P E AU - Mest, S AU - Bleacher, Jacob E AU - Petro, N Y1 - 2011 PY - 2011 DA - 2011 SP - 547 EP - 567 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - Tsiolkovskiy Crater KW - impactites KW - impact features KW - Moon KW - Oceanus Procellarum KW - Apollo Program KW - landing sites KW - maria KW - lunar craters KW - exploration KW - South Pole-Aitken Basin KW - Mare Imbrium KW - farside KW - planning KW - metamorphic rocks KW - Aristarchus KW - geochemical anomalies KW - impact craters KW - extravehicular activity KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008820585?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Advanced+regional-scale+scenarios+for+lunar+surface+exploration&rft.au=Clark%2C+P+E%3BMest%2C+S%3BBleacher%2C+Jacob+E%3BPetro%2C+N&rft.aulast=Clark&rft.aufirst=P&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=547&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2833%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 28 N1 - PubXState - CO N1 - Document feature - illus. incl. 4 tables, geol. sketch maps N1 - Last updated - 2012-07-19 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - Apollo Program; Aristarchus; exploration; extravehicular activity; farside; geochemical anomalies; impact craters; impact features; impactites; instruments; landing sites; lunar craters; Mare Imbrium; maria; metamorphic rocks; Moon; Oceanus Procellarum; planning; South Pole-Aitken Basin; Tsiolkovskiy Crater DO - http://dx.doi.org/10.1130/2011.2483(33) ER - TY - JOUR T1 - A historical overview of the Pavilion Lake Research Project; analog science and exploration in an underwater environment AN - 1008820042; 2012-041756 AB - As humans venture back to the Moon, or onward to near-Earth objects and Mars, it is expected that the rigors of this exploration will far exceed those of APOLLO: Terrestrial analogs can play a key role in our preparations for these complex voyages, since in addition to their scientific value, analogs afford the exploration community a means to safely prepare and test exploration strategies for future robotic and human planetary missions. Many relevant analog studies exist, and each is focused on a particular aspect of strategic development. Some analog programs such as the Pavilion Lake Research Project (PLRP) present the opportunity to investigate both real scientific and real exploration scenarios in tandem. The activities of this research program demand the use of techniques, tools, and strategies for underwater scientific exploration, and the challenges associated with the scientific exploration of Pavilion Lake are analogous to those human explorers will encounter on other planetary and small solar system bodies. The goal of this paper is to provide a historical synopsis of the PLRP's objectives, milestones, and contributions to both the scientific and exploration community. Here, we focus on detailing the development and deployment of an integrated science and exploration program with analog application to our understanding of early Earth systems and the preparation for future human space exploration. Over a decade of exploration and discovery is chronicled herein. JF - Special Paper - Geological Society of America AU - Lim, Darlene S S AU - Brady, A L AU - Abercromby, Andrew F AU - Andersen, D T AU - Andersen, M AU - Arnold, R R AU - Bird, J S AU - Bohm, H R AU - Booth, L AU - Cady, S L AU - Cardman, Z AU - Chan, A M AU - Chan, O AU - Chenard, C AU - Cowie, B R AU - Davila, A F AU - Deans, Matthew C AU - Dearing, W AU - Delaney, M AU - Downs, M AU - Fong, Terrence AU - Forrest, A AU - Gernhardt, M L AU - Gutsche, J R AU - Hadfield, C AU - Hamilton, A AU - Hansen, J AU - Hawes, I AU - Heaton, J AU - Imam, Y AU - Laval, B L AU - Lees, David AU - Leoni, L AU - Looper, C AU - Love, S AU - Marinova, M M AU - McCombs, D AU - McKay, Christopher P AU - Mireau, B AU - Mullins, G AU - Nebel, S H AU - Nuytten, P AU - Pendery, R AU - Pike, W AU - Pointing, S B AU - Pollack, J AU - Raineault, N AU - Reay, M AU - Reid, D AU - Sallstedt, T AU - Schulze-Makuch, D AU - Seibert, M AU - Shepard, R AU - Slater, G F AU - Stonehouse, J AU - Sumner, D Y AU - Suttle, C A AU - Trembanis, A AU - Turse, C AU - Wilhelm, M AU - Wilkinson, N AU - Williams, D AU - Winget, D M AU - Winter, C A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 85 EP - 115 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - limestone KW - isotopes KW - mapping KW - education KW - terrestrial analogs KW - Pavilion Lake KW - exploration KW - data management KW - sedimentary rocks KW - paleolimnology KW - future KW - carbon KW - biomineralization KW - solar system KW - public awareness KW - British Columbia KW - Pavilion Lake Research Project KW - information management KW - hydrochemistry KW - Canada KW - microbialite KW - bacteria KW - lacustrine environment KW - surveys KW - Western Canada KW - robotics KW - reconstruction KW - bathymetry KW - carbonate rocks KW - aquatic environment KW - microorganisms KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008820042?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=A+historical+overview+of+the+Pavilion+Lake+Research+Project%3B+analog+science+and+exploration+in+an+underwater+environment&rft.au=Lim%2C+Darlene+S+S%3BBrady%2C+A+L%3BAbercromby%2C+Andrew+F%3BAndersen%2C+D+T%3BAndersen%2C+M%3BArnold%2C+R+R%3BBird%2C+J+S%3BBohm%2C+H+R%3BBooth%2C+L%3BCady%2C+S+L%3BCardman%2C+Z%3BChan%2C+A+M%3BChan%2C+O%3BChenard%2C+C%3BCowie%2C+B+R%3BDavila%2C+A+F%3BDeans%2C+Matthew+C%3BDearing%2C+W%3BDelaney%2C+M%3BDowns%2C+M%3BFong%2C+Terrence%3BForrest%2C+A%3BGernhardt%2C+M+L%3BGutsche%2C+J+R%3BHadfield%2C+C%3BHamilton%2C+A%3BHansen%2C+J%3BHawes%2C+I%3BHeaton%2C+J%3BImam%2C+Y%3BLaval%2C+B+L%3BLees%2C+David%3BLeoni%2C+L%3BLooper%2C+C%3BLove%2C+S%3BMarinova%2C+M+M%3BMcCombs%2C+D%3BMcKay%2C+Christopher+P%3BMireau%2C+B%3BMullins%2C+G%3BNebel%2C+S+H%3BNuytten%2C+P%3BPendery%2C+R%3BPike%2C+W%3BPointing%2C+S+B%3BPollack%2C+J%3BRaineault%2C+N%3BReay%2C+M%3BReid%2C+D%3BSallstedt%2C+T%3BSchulze-Makuch%2C+D%3BSeibert%2C+M%3BShepard%2C+R%3BSlater%2C+G+F%3BStonehouse%2C+J%3BSumner%2C+D+Y%3BSuttle%2C+C+A%3BTrembanis%2C+A%3BTurse%2C+C%3BWilhelm%2C+M%3BWilkinson%2C+N%3BWilliams%2C+D%3BWinget%2C+D+M%3BWinter%2C+C&rft.aulast=Lim&rft.aufirst=Darlene+S&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=85&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2807%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 24 N1 - PubXState - CO N1 - Document feature - illus. incl. sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - aquatic environment; bacteria; bathymetry; biomineralization; British Columbia; Canada; carbon; carbonate rocks; data management; education; exploration; future; hydrochemistry; information management; isotopes; lacustrine environment; limestone; mapping; microbialite; microorganisms; paleolimnology; Pavilion Lake; Pavilion Lake Research Project; public awareness; reconstruction; robotics; sedimentary rocks; solar system; surveys; terrestrial analogs; Western Canada DO - http://dx.doi.org/10.1130/2011.2483(07) ER - TY - JOUR T1 - Theo's Flow, Ontario, Canada; a terrestrial analog for the Martian nakhlite meteorites AN - 1008819582; 2012-041766 AB - Martian meteorites provide our only samples for laboratory investigations of Mars, yet the lack of geologic context severely limits their utility. Strong petrologic similarities between the pyroxenitic layer of a 120-m-thick, mafic Archean lava flow in Ontario, Canada, called Theo's Flow, and the nakhlite meteorite group may elucidate geologic processes that operated on Mars. Theo's Flow is in the Abitibi greenstone belt, an area that is well known as a komatiite location. The type locality, and best outcrop, of Theo's Flow is an upturned (approximately 70 degrees ) section stretching east-west for approximately 500 m. Theo's Flow can be divided into distinct lithologic units: a thin basal peridotite (0-9 m), a thick pyroxenite (50-60 m), a gabbro (35-40 m), and a hyaloclastic, brecciated top (8-10 m). It is the thick pyroxenitic layer that bears a striking textural similarity to the Martian nakhlites. Serpentinization of olivine, chloritization of orthopyroxene, and alteration (e.g., pseudomorphic replacement) of plagioclase and minor phases have transformed the original mineral assemblage, though augites remain largely unaltered, and textural relationships are well preserved throughout the flow. Variations in iron and minor-element abundances in augite cores exhibit typical trends for an evolving melt. Bulk rock analyses exhibit elemental trends consistent with an evolving melt, though they exhibit evidence of elemental remobilization by later metamorphism. An average of the peridotite, pyroxenite, and gabbro compositions compares well to that of the quenched top hyaloclastite, suggesting it is a single flow that was differentiated by crystal settling. The lithologic diversity within Theo's Flow suggests that nakhlites may also have complementary lithologies that remain unsampled. JF - Special Paper - Geological Society of America AU - Lentz, Rachel C F AU - McCoy, T J AU - Collins, L E AU - Corrigan, C M AU - Benedix, G K AU - Taylor, G J AU - Harvey, R P A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 263 EP - 277 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - silicates KW - magmatic differentiation KW - serpentinization KW - nakhlite KW - volcanic rocks KW - stony meteorites KW - Martian meteorites KW - igneous rocks KW - komatiite KW - metasomatism KW - terrestrial analogs KW - SNC Meteorites KW - meteorites KW - pyroxene group KW - plutonic rocks KW - mineral composition KW - Abitibi Belt KW - whole rock KW - crystal zoning KW - Canadian Shield KW - chain silicates KW - North America KW - lava flows KW - Superior Province KW - Theo's Flow KW - metamorphism KW - achondrites KW - ultramafics KW - Ontario KW - pyroxenite KW - Canada KW - peridotites KW - petrography KW - orthopyroxene KW - gabbros KW - chloritization KW - Eastern Canada KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819582?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Theo%27s+Flow%2C+Ontario%2C+Canada%3B+a+terrestrial+analog+for+the+Martian+nakhlite+meteorites&rft.au=Lentz%2C+Rachel+C+F%3BMcCoy%2C+T+J%3BCollins%2C+L+E%3BCorrigan%2C+C+M%3BBenedix%2C+G+K%3BTaylor%2C+G+J%3BHarvey%2C+R+P&rft.aulast=Lentz&rft.aufirst=Rachel+C&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=263&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2817%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 27 N1 - PubXState - CO N1 - Document feature - illus. incl. 3 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - Abitibi Belt; achondrites; Canada; Canadian Shield; chain silicates; chloritization; crystal zoning; Eastern Canada; gabbros; igneous rocks; komatiite; lava flows; magmatic differentiation; Martian meteorites; metamorphism; metasomatism; meteorites; mineral composition; nakhlite; North America; Ontario; orthopyroxene; peridotites; petrography; plutonic rocks; pyroxene group; pyroxenite; serpentinization; silicates; SNC Meteorites; stony meteorites; Superior Province; terrestrial analogs; Theo's Flow; ultramafics; volcanic rocks; whole rock DO - http://dx.doi.org/10.1130/2011.2483(17) ER - TY - JOUR T1 - Comparative geological studies of volcanic terrain on Mars; examples from the Isachsen Formation, Axel Heiberg Island, Canadian High Arctic AN - 1008819572; 2012-041765 AB - Recent orbital and rover missions to Mars have returned high-resolution images that show complex surface landforms in unprecedented detail. In addition, the spectral data sets from mission instruments reveal the presence of a wide array of mineral species on the surface of Mars. These discoveries are changing the analog science requirements of projects targeting exploration missions to Mars. Mission managers now expect field deployments to include complementary investigations of surface processes, rock types, mineral species, and microbial habitats. Earth-based analog sites are selected according to their potential for integrated geological and biological studies, wherein a central theme is the search for life. Geological field studies on Axel Heiberg Island, in the Canadian Arctic, demonstrate that the Isachsen Formation represents a high-fidelity analog for comparative studies of volcanic terrain on Mars. The two sites of interest are located in structurally complex zones (chaotic terrain) where basaltic lava flows, mafic dikes, and sandstone beds of Early Cretaceous age intersect evaporite outliers at the periphery of the diapirs. At the North Agate Fiord diapir and Junction diapir, remnant blocks of basaltic rock are pervasively altered and contain copper and iron sulfides, as well as the secondary sulfates copiapite, fibroferrite, and jarosite (North Agate Fiord diapir). Alteration zones within poorly consolidated quartzitic sandstone consist of thin layers of goethite, hematite, illite, and jarosite. The sites are morphologically different from Martian patera, but they provide access to volcanic successions and evaporites in areas of permafrost, i.e., conditions that are invoked in conceptual models for hydrothermal systems and groundwater flow on Mars. JF - Special Paper - Geological Society of America AU - Williamson, Marie-Claude AU - Smyth, Helen R AU - Peterson, Ronald C AU - Lavoie, Denis A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 249 EP - 261 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - imagery KW - permafrost KW - Cretaceous KW - sandstone KW - astrobiology KW - Mars KW - landforms KW - metasomatism KW - terrestrial analogs KW - Axel Heiberg Island KW - Queen Elizabeth Islands KW - Sverdrup Islands KW - volcanic features KW - sedimentary rocks KW - Nunavut KW - springs KW - hydrothermal alteration KW - basalt flows KW - Isachsen Formation KW - diapirs KW - Lower Cretaceous KW - chemically precipitated rocks KW - sulfates KW - secondary minerals KW - evaporites KW - Mesozoic KW - Sverdrup Basin KW - hydrothermal conditions KW - terrestrial planets KW - jarosite KW - planets KW - Canada KW - terrestrial comparison KW - carbonate rocks KW - clastic rocks KW - 06A:Sedimentary petrology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819572?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Comparative+geological+studies+of+volcanic+terrain+on+Mars%3B+examples+from+the+Isachsen+Formation%2C+Axel+Heiberg+Island%2C+Canadian+High+Arctic&rft.au=Williamson%2C+Marie-Claude%3BSmyth%2C+Helen+R%3BPeterson%2C+Ronald+C%3BLavoie%2C+Denis&rft.aulast=Williamson&rft.aufirst=Marie-Claude&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=249&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2816%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 53 N1 - PubXState - CO N1 - Document feature - illus. incl. sects., geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - astrobiology; Axel Heiberg Island; basalt flows; Canada; carbonate rocks; chemically precipitated rocks; clastic rocks; Cretaceous; diapirs; evaporites; hydrothermal alteration; hydrothermal conditions; imagery; Isachsen Formation; jarosite; landforms; Lower Cretaceous; Mars; Mesozoic; metasomatism; Nunavut; permafrost; planets; Queen Elizabeth Islands; sandstone; secondary minerals; sedimentary rocks; springs; sulfates; Sverdrup Basin; Sverdrup Islands; terrestrial analogs; terrestrial comparison; terrestrial planets; volcanic features DO - http://dx.doi.org/10.1130/2011.2483(16) ER - TY - JOUR T1 - Travertine and tufa from Dalhousie Springs (Australia); implications for recognizing Martian springs AN - 1008819564; 2012-041764 AB - Thermal spring deposits are features of considerable interest to Mars scientists because of their potential as astrobiological oases and as records of the paleohydrology of the planet. Terrestrial counterparts can assist in recognizing such features on Mars and in developing technologies for their study and sampling. In this paper, we describe one such analog, the Dalhousie Springs Complex in central Australia. The Dalhousie Springs Complex is one of largest groundwater discharge landforms known on Earth. It is a carbonate-limited precipitation system due to the non-supersaturated ascending water. Spring carbonates are deposited as discrete mounds and outflow channels resting unconformably on older units. Although subject to postformation geomorphic modification, the spring deposits persist in the landscape and are recognizable long after the parental spring has shut down. We identify 14 specific microfacies belonging to seven facies, which form three environmental associations related to specific depositional environments. Diagenesis has occurred in several stages, as evidenced by distinctive textures on the deposits. Spring deposits on Mars would potentially be recognized by similar textures (although compositions may be quite different) and similar geomorphic relationships. However, in satellite images, spring deposits may be difficult to differentiate from deposits resulting from other processes that produce similar geomorphic features, including mud volcanoes, pingos, and rootless cones. Mineralogical data may assist, but ultimately ground truth will be required. JF - Special Paper - Geological Society of America AU - Clarke, J D A AU - Bourke, M C A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 231 EP - 247 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - limestone KW - astrobiology KW - Mars KW - landforms KW - outflow channels KW - Great Artesian Basin KW - terrestrial analogs KW - ground water KW - sedimentary rocks KW - springs KW - Australia KW - depositional environment KW - discharge KW - Dalhousie Springs KW - chemically precipitated rocks KW - Australasia KW - paleohydrology KW - thermal waters KW - terrestrial planets KW - planets KW - microfacies KW - diagenesis KW - microbialite KW - travertine KW - petrography KW - tufa KW - geomorphology KW - hot springs KW - carbonate rocks KW - 06A:Sedimentary petrology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819564?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Travertine+and+tufa+from+Dalhousie+Springs+%28Australia%29%3B+implications+for+recognizing+Martian+springs&rft.au=Clarke%2C+J+D+A%3BBourke%2C+M+C&rft.aulast=Clarke&rft.aufirst=J+D&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=231&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2815%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 55 N1 - PubXState - CO N1 - Document feature - illus. incl. 4 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - astrobiology; Australasia; Australia; carbonate rocks; chemically precipitated rocks; Dalhousie Springs; depositional environment; diagenesis; discharge; geomorphology; Great Artesian Basin; ground water; hot springs; landforms; limestone; Mars; microbialite; microfacies; outflow channels; paleohydrology; petrography; planets; sedimentary rocks; springs; terrestrial analogs; terrestrial planets; thermal waters; travertine; tufa DO - http://dx.doi.org/10.1130/2011.2483(15) ER - TY - JOUR T1 - The Todilto Formation as an analog of short-lived Martian flood evaporites AN - 1008819557; 2012-041763 AB - The Jurassic Todilto Formation of NW New Mexico and SW Colorado, USA, has utility as an analog of Martian flood evaporites. The Todilto Formation is a concentrically and vertically zoned carbonate (calcite with minor late dolomite) to sulfate (gypsum) evaporite deposit that developed over a short time span (10 (super 4) -10 (super 5) yr) after rapid flooding of the vast dune field of the Entrada Formation. Within the limits of the very different hydrogeologic environments of Mars and Earth, the Todilto setting of short-lived brine evolution in a largely eolian environment, with terminal formation of a salt hydrate common to both planets (gypsum), provides a useful field area for descriptive and petrogenetic studies of evaporite evolution and interaction with a porous, sandy substrate. The Todilto Formation has an added feature of interest in its association with bituminous materials that have likely microbial precursors, providing a brine-microorganism association that may represent a potential setting for primitive life as might be found on Mars. JF - Special Paper - Geological Society of America AU - Vaniman, David AU - Chipera, Steve AU - Brownholland, Kari AU - Bish, David L A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 219 EP - 230 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - United States KW - anhydrite KW - astrobiology KW - Mars KW - New Mexico KW - bassanite KW - terrestrial analogs KW - dolomite KW - sedimentary rocks KW - gypsum KW - floods KW - trace elements KW - chemically precipitated rocks KW - sulfates KW - Jurassic KW - Middle Jurassic KW - evaporites KW - Mesozoic KW - calcite KW - Todilto Formation KW - terrestrial planets KW - planets KW - brines KW - petrography KW - Colorado KW - carbonates KW - 06A:Sedimentary petrology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819557?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=The+Todilto+Formation+as+an+analog+of+short-lived+Martian+flood+evaporites&rft.au=Vaniman%2C+David%3BChipera%2C+Steve%3BBrownholland%2C+Kari%3BBish%2C+David+L&rft.aulast=Vaniman&rft.aufirst=David&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=219&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2814%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 52 N1 - PubXState - CO N1 - Document feature - illus. incl. 2 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - anhydrite; astrobiology; bassanite; brines; calcite; carbonates; chemically precipitated rocks; Colorado; dolomite; evaporites; floods; gypsum; Jurassic; Mars; Mesozoic; Middle Jurassic; New Mexico; petrography; planets; sedimentary rocks; sulfates; terrestrial analogs; terrestrial planets; Todilto Formation; trace elements; United States DO - http://dx.doi.org/10.1130/2011.2483(14) ER - TY - JOUR T1 - The Tuktoyaktuk coastlands of northern Canada; a possible "wet" periglacial analog of Utopia Planitia, Mars AN - 1008819545; 2012-041762 AB - Numerous landforms with traits that are suggestive of formation by periglacial processes have been observed in Utopia Planitia, Mars. They include: small-sized polygons, flat-floored depressions, and polygon trough or junction pits. Most workers agree that these landforms are late Amazonian and mark the occurrence of near-surface regolith that is (was) ice rich. The evolution of the Martian landforms has been explained principally by two disparate hypotheses. The first is the "wet hypothesis." It is derived from the boundary conditions and ice-rich landscape of regions such as the Tuktoyaktuk Coastlands, Canada, where stable liquid water is freely available as an agent of landscape modification. The second is the "dry" hypothesis. It is adapted from the boundary conditions and landscape-modification processes in the glacial Dry Valleys of the Antarctic, where mean temperatures are much colder than in the Tuktoyaktuk Coastlands, liquid water at or near the surface is rare, and sublimation is the principal agent of glacial mass loss. Here, we (1) describe the ice-rich landscape of the Tuktoyaktuk Coastlands and their principal periglacial features; (2) show that these features constitute a coherent assemblage produced by thaw-freeze cycles; (3) describe the landforms of Utopia Planitia and evaluate the extent to which "wet" or "dry" periglacial processes could have contributed to their formation; and (4) suggest that even if questions concerning the "wet" or "dry" origin of the Martian landforms remain open, "dry" processes are incapable of explaining the origin of the ice-rich regolith itself, from which the landforms evolved. JF - Special Paper - Geological Society of America AU - Soare, Richard J AU - Sejourne, Antoine AU - Pearce, Geoffrey AU - Costard, Francois AU - Osinski, Gordon R A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 203 EP - 218 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - Tuktoyaktuk Peninsula KW - permafrost KW - water vapor KW - Mars KW - landforms KW - periglacial features KW - northern Canada KW - Utopia Planitia KW - Amazonian KW - ice KW - mass movements KW - ground ice KW - polygons KW - water KW - shorelines KW - periglacial environment KW - thawing KW - Northwest Territories KW - terrestrial planets KW - slumping KW - planets KW - Canada KW - frost action KW - thermokarst KW - depressions KW - Western Canada KW - terrestrial comparison KW - glacial geology KW - active layer KW - regolith KW - 24:Quaternary geology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819545?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=The+Tuktoyaktuk+coastlands+of+northern+Canada%3B+a+possible+%22wet%22+periglacial+analog+of+Utopia+Planitia%2C+Mars&rft.au=Soare%2C+Richard+J%3BSejourne%2C+Antoine%3BPearce%2C+Geoffrey%3BCostard%2C+Francois%3BOsinski%2C+Gordon+R&rft.aulast=Soare&rft.aufirst=Richard&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=203&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2813%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 90 N1 - PubXState - CO N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - active layer; Amazonian; Canada; depressions; frost action; glacial geology; ground ice; ice; landforms; Mars; mass movements; northern Canada; Northwest Territories; periglacial environment; periglacial features; permafrost; planets; polygons; regolith; shorelines; slumping; terrestrial comparison; terrestrial planets; thawing; thermokarst; Tuktoyaktuk Peninsula; Utopia Planitia; water; water vapor; Western Canada DO - http://dx.doi.org/10.1130/2011.2483(13) ER - TY - JOUR T1 - Periglacial landscapes on Svalbard; terrestrial analogs for cold-climate landforms on Mars AN - 1008819536; 2012-041761 AB - We present landforms on Svalbard (Norway) as terrestrial analogs for possible Martian periglacial surface features. While there are closer climatic analogs for Mars, e.g., the Antarctic Dry Valleys, Svalbard has unique advantages that make it a very useful study area. Svalbard is easily accessible and offers a periglacial landscape where many different landforms can be encountered in close spatial proximity. These landforms include thermal contraction cracks, slope stripes, rock glaciers, protalus ramparts, and pingos, all of which have close morphological analogs on Mars. The combination of remote-sensing data, in particular images and digital elevation models, with field work is a promising approach in analog studies and facilitates acquisition of first-hand experience with permafrost environments. Based on the morphological ambiguity of certain landforms such as pingos, we recommend that Martian cold-climate landforms should not be investigated in isolation, but as part of a landscape system in a geological context. JF - Special Paper - Geological Society of America AU - Hauber, E AU - Reiss, D AU - Ulrich, M AU - Preusker, F AU - Trauthan, F AU - Zanetti, M AU - Hiesinger, H AU - Jaumann, R AU - Johansson, L AU - Johnsson, A AU - Olvmo, M AU - Carlsson, E AU - Johansson, H A B AU - McDaniel, S Y1 - 2011 PY - 2011 DA - 2011 SP - 177 EP - 201 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - imagery KW - permafrost KW - Svalbard KW - Mars KW - landforms KW - periglacial features KW - digital terrain models KW - terrestrial analogs KW - rock glaciers KW - surface features KW - HiRISE KW - polygons KW - climate KW - polar regions KW - Arctic region KW - pingos KW - periglacial environment KW - glaciers KW - morphometry KW - Mars Reconnaissance Orbiter KW - ice wedges KW - High Resolution Stereo Camera KW - High Resolution Imaging Science Experiment KW - terrestrial planets KW - planets KW - thermokarst KW - aerial photography KW - glacial geology KW - geomorphology KW - landscapes KW - patterned ground KW - remote sensing KW - 24:Quaternary geology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819536?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Periglacial+landscapes+on+Svalbard%3B+terrestrial+analogs+for+cold-climate+landforms+on+Mars&rft.au=Hauber%2C+E%3BReiss%2C+D%3BUlrich%2C+M%3BPreusker%2C+F%3BTrauthan%2C+F%3BZanetti%2C+M%3BHiesinger%2C+H%3BJaumann%2C+R%3BJohansson%2C+L%3BJohnsson%2C+A%3BOlvmo%2C+M%3BCarlsson%2C+E%3BJohansson%2C+H+A+B%3BMcDaniel%2C+S&rft.aulast=Hauber&rft.aufirst=E&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=177&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2812%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 266 N1 - PubXState - CO N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-07-19 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - aerial photography; Arctic region; climate; digital terrain models; geomorphology; glacial geology; glaciers; High Resolution Imaging Science Experiment; High Resolution Stereo Camera; HiRISE; ice wedges; imagery; landforms; landscapes; Mars; Mars Reconnaissance Orbiter; morphometry; patterned ground; periglacial environment; periglacial features; permafrost; pingos; planets; polar regions; polygons; remote sensing; rock glaciers; surface features; Svalbard; terrestrial analogs; terrestrial planets; thermokarst DO - http://dx.doi.org/10.1130/2011.2483(12) ER - TY - JOUR T1 - Terrestrial gullies and debris-flow tracks on Svalbard as planetary analogs for Mars AN - 1008819525; 2012-041760 AB - We compared the morphology of gully sedimentary fans on Svalbard as possible analogs to gullies on Mars in order to constrain whether fluvial and/or debris-flow processes are predominantly responsible for the formation of Martian gullies. Our analysis is based on high-resolution imagery (High Resolution Stereo Camera [HRSC-AX], approximately 20 cm/pixel) acquired through a flight campaign in summer 2008 and ground truth during two expeditions in the summers of 2008 and 2009 in Svalbard, compared to high-resolution satellite imagery (High Resolution Imaging Science Experiment [HiRISE], approximately 25 cm/pixel) from Mars. On Svalbard, fluvial and debris-flow processes are evident in the formation of gullies, but the morphological characteristics clearly show that the transport and sedimentation of eroded material are predominated by debris flows. Most investigated gullies on Mars lack clear evidence for debris-flow processes. The Martian gully fan morphology is more consistent with the deposition of small overlapping fans by multiple fluvial flow events. Clear evidence for debris flows on Mars was only found in one new location, in addition to a few previously published examples. The occurrence of debris-flow processes in the formation of Martian gullies seems to be rare and locally limited. If predominantly fluvial processes caused the formation of gullies on Mars, then large amounts of water would have been required for their formation because of the relatively low sediment supply in stream and/or hyperconcentrated flows. Repeated seasonal or episodic snow deposition and melting during periods of higher obliquity in the recent past on Mars can best explain the formation of the gullies. JF - Special Paper - Geological Society of America AU - Reiss, D AU - Hauber, E AU - Hiesinger, H AU - Jaumann, R AU - Trauthan, F AU - Preusker, F AU - Zanetti, M AU - Ulrich, M AU - Johnsson, A AU - Johansson, L AU - Olvmo, M AU - Carlsson, E AU - Johansson, H A B AU - McDaniel, S A2 - Garry, W. Brent A2 - Bleacher, Jacob E. Y1 - 2011 PY - 2011 DA - 2011 SP - 165 EP - 175 PB - Geological Society of America (GSA), Boulder, CO VL - 483 SN - 0072-1077, 0072-1077 KW - imagery KW - terrestrial environment KW - obliquity of the ecliptic KW - Svalbard KW - erosion KW - sediment supply KW - Mars KW - erosion features KW - debris flows KW - terrestrial analogs KW - melting KW - ground truth KW - transport KW - snow KW - mass movements KW - HiRISE KW - gullies KW - high-resolution methods KW - sediment transport KW - Arctic region KW - sedimentation KW - water erosion KW - High Resolution Stereo Camera KW - satellite methods KW - High Resolution Imaging Science Experiment KW - terrestrial planets KW - morphology KW - planets KW - streamflow KW - deposition KW - fluvial features KW - seasonal variations KW - remote sensing KW - 23:Geomorphology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819525?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Terrestrial+gullies+and+debris-flow+tracks+on+Svalbard+as+planetary+analogs+for+Mars&rft.au=Reiss%2C+D%3BHauber%2C+E%3BHiesinger%2C+H%3BJaumann%2C+R%3BTrauthan%2C+F%3BPreusker%2C+F%3BZanetti%2C+M%3BUlrich%2C+M%3BJohnsson%2C+A%3BJohansson%2C+L%3BOlvmo%2C+M%3BCarlsson%2C+E%3BJohansson%2C+H+A+B%3BMcDaniel%2C+S&rft.aulast=Reiss&rft.aufirst=D&rft.date=2011-01-01&rft.volume=483&rft.issue=&rft.spage=165&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/10.1130%2F2011.2483%2811%29 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 60 N1 - PubXState - CO N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - Arctic region; debris flows; deposition; erosion; erosion features; fluvial features; ground truth; gullies; High Resolution Imaging Science Experiment; High Resolution Stereo Camera; high-resolution methods; HiRISE; imagery; Mars; mass movements; melting; morphology; obliquity of the ecliptic; planets; remote sensing; satellite methods; seasonal variations; sediment supply; sediment transport; sedimentation; snow; streamflow; Svalbard; terrestrial analogs; terrestrial environment; terrestrial planets; transport; water erosion DO - http://dx.doi.org/10.1130/2011.2483(11) ER - TY - JOUR T1 - Nothing older than the Borealis Basin on Mars AN - 1008819508; 2012-039119 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Frey, H V AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract no. 1756 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Borealis Basin KW - circular thin areas KW - impact features KW - Mars KW - mapping KW - impacts KW - retention age KW - terrestrial planets KW - quasi-circular depressions KW - planets KW - size distribution KW - age KW - basins KW - impact craters KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819508?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Nothing+older+than+the+Borealis+Basin+on+Mars&rft.au=Frey%2C+H+V%3BAnonymous&rft.aulast=Frey&rft.aufirst=H&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.lpi.usra.edu/meetings/lpsc2011/pdf/1756.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 7, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - age; basins; Borealis Basin; circular thin areas; impact craters; impact features; impacts; mapping; Mars; planets; quasi-circular depressions; retention age; size distribution; terrestrial planets ER - TY - JOUR T1 - Spectroscopic evidence of Mg-rich low-Ca pyroxenes on the nearside of the Moon AN - 1008819278; 2012-039150 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Klima, Rachel L AU - Pieters, Carle M AU - Isaacson, Peter J AU - Head, J W AU - Petro, N E AU - Staid, M AU - Sunshine, J M AU - Taylor, L A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract no. 2152 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - calcium KW - magnesium KW - imagery KW - igneous rocks KW - olivine group KW - Chandrayaan-1 Mission KW - multispectral analysis KW - pyroxene group KW - plutonic rocks KW - clinopyroxene KW - olivine KW - Moon Mineralogy Mapper KW - orthosilicates KW - norite KW - chain silicates KW - alkaline earth metals KW - Mg number KW - Moon KW - low-calcium pyroxene KW - nesosilicates KW - South Pole-Aitken Basin KW - Mare Imbrium KW - Vallis Alpes KW - metals KW - Montes Alpes KW - orthopyroxene KW - gabbros KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819278?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Spectroscopic+evidence+of+Mg-rich+low-Ca+pyroxenes+on+the+nearside+of+the+Moon&rft.au=Klima%2C+Rachel+L%3BPieters%2C+Carle+M%3BIsaacson%2C+Peter+J%3BHead%2C+J+W%3BPetro%2C+N+E%3BStaid%2C+M%3BSunshine%2C+J+M%3BTaylor%2C+L+A%3BAnonymous&rft.aulast=Klima&rft.aufirst=Rachel&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.lpi.usra.edu/meetings/lpsc2011/pdf/2152.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 11, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; calcium; chain silicates; Chandrayaan-1 Mission; clinopyroxene; gabbros; igneous rocks; imagery; low-calcium pyroxene; magnesium; Mare Imbrium; metals; Mg number; Montes Alpes; Moon; Moon Mineralogy Mapper; multispectral analysis; nesosilicates; norite; olivine; olivine group; orthopyroxene; orthosilicates; plutonic rocks; pyroxene group; silicates; South Pole-Aitken Basin; Vallis Alpes ER - TY - JOUR T1 - Linne; simple lunar mare crater geometry from LRO observations AN - 1008819267; 2012-039028 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Garvin, James B AU - Robinson, M S AU - Frawley, J AU - Tran, T AU - Mazarico, Erwan AU - Neumann, G A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 2063 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - United States KW - Lunar Orbiter Laser Altimeter KW - cratering KW - Coconino County Arizona KW - impact features KW - Lunar Reconnaissance Orbiter KW - Mars KW - landforms KW - digital terrain models KW - Mare Serenitatis KW - lunar craters KW - topography KW - hypervelocity impacts KW - Linne Crater KW - Meteor Crater KW - Moon KW - impacts KW - maria KW - simple craters KW - geometry KW - terrestrial planets KW - morphology KW - planets KW - Arizona KW - terrestrial comparison KW - impact craters KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819267?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Linne%3B+simple+lunar+mare+crater+geometry+from+LRO+observations&rft.au=Garvin%2C+James+B%3BRobinson%2C+M+S%3BFrawley%2C+J%3BTran%2C+T%3BMazarico%2C+Erwan%3BNeumann%2C+G+A%3BAnonymous&rft.aulast=Garvin&rft.aufirst=James&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2063.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 13, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Arizona; Coconino County Arizona; cratering; digital terrain models; geometry; hypervelocity impacts; impact craters; impact features; impacts; landforms; Linne Crater; lunar craters; Lunar Orbiter Laser Altimeter; Lunar Reconnaissance Orbiter; Mare Serenitatis; maria; Mars; Meteor Crater; Moon; morphology; planets; simple craters; terrestrial comparison; terrestrial planets; topography; United States ER - TY - JOUR T1 - Scientist involvement in planetary science education and public outreach AN - 1008819258; 2012-039094 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Shipp, S AU - Dalton, H AU - LaConte, K AU - Shupla, C AU - CoBabe-Ammann, E AU - Wessen, A AU - Zimmerman-Brachman, R AU - Boonstra, D AU - Ristvey, J AU - Mackety, D AU - Igel, C AU - Buxner, S R AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract no. 2782 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - graduate-level education KW - college-level education KW - K-12 education KW - public awareness KW - Planetary Science Education and Public Outreach Forum KW - NASA KW - government agencies KW - education KW - planetary science KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819258?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Scientist+involvement+in+planetary+science+education+and+public+outreach&rft.au=Shipp%2C+S%3BDalton%2C+H%3BLaConte%2C+K%3BShupla%2C+C%3BCoBabe-Ammann%2C+E%3BWessen%2C+A%3BZimmerman-Brachman%2C+R%3BBoonstra%2C+D%3BRistvey%2C+J%3BMackety%2C+D%3BIgel%2C+C%3BBuxner%2C+S+R%3BAnonymous&rft.aulast=Shipp&rft.aufirst=S&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.lpi.usra.edu/meetings/lpsc2011/pdf/2782.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - TX N1 - SuppNotes - Accessed on Oct. 6, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - college-level education; education; government agencies; graduate-level education; K-12 education; NASA; planetary science; Planetary Science Education and Public Outreach Forum; public awareness ER - TY - JOUR T1 - From interpolation based crater detection algorithm and LOLA data towards the most complete global catalog of lunar craters AN - 1008819250; 2012-039042 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Salamuniccar, G AU - Loncaric, S AU - Mazarico, Erwan AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 1449 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Lunar Orbiter Laser Altimeter KW - Moon KW - SELENE Mission KW - global KW - interpolation KW - lunar craters KW - automated analysis KW - detection KW - craters KW - LOLA KW - catalogs KW - algorithms KW - image analysis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819250?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=From+interpolation+based+crater+detection+algorithm+and+LOLA+data+towards+the+most+complete+global+catalog+of+lunar+craters&rft.au=Salamuniccar%2C+G%3BLoncaric%2C+S%3BMazarico%2C+Erwan%3BAnonymous&rft.aulast=Salamuniccar&rft.aufirst=G&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1449.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 14, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - algorithms; automated analysis; catalogs; craters; detection; global; image analysis; interpolation; LOLA; lunar craters; Lunar Orbiter Laser Altimeter; Moon; SELENE Mission ER - TY - JOUR T1 - The Year of the Solar System; pathways for scientist involvement AN - 1008819245; 2012-039093 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Shipp, S AU - Shupla, C AU - Dalton, H AU - Buxner, S R AU - Boonstra, D AU - Scalice, D M AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract no. 2618 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - solar system KW - programs KW - Earth KW - public awareness KW - Moon KW - Year of the Solar System KW - Jupiter KW - government agencies KW - Mars KW - education KW - giant planets KW - terrestrial planets KW - Saturn KW - planets KW - educational resources KW - NASA KW - Sun KW - Mercury Planet KW - outer planets KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819245?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+Year+of+the+Solar+System%3B+pathways+for+scientist+involvement&rft.au=Shipp%2C+S%3BShupla%2C+C%3BDalton%2C+H%3BBuxner%2C+S+R%3BBoonstra%2C+D%3BScalice%2C+D+M%3BAnonymous&rft.aulast=Shipp&rft.aufirst=S&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.lpi.usra.edu/meetings/lpsc2011/pdf/2618.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 6, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Earth; education; educational resources; giant planets; government agencies; Jupiter; Mars; Mercury Planet; Moon; NASA; outer planets; planets; programs; public awareness; Saturn; solar system; Sun; terrestrial planets; Year of the Solar System ER - TY - JOUR T1 - Planetary education and outreach using the NOAA Science on a Sphere AN - 1008819213; 2012-039089 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Simon-Miller, A A AU - Williams, D R AU - Smith, S M AU - Friedlander, J S AU - Mayo, L A AU - Clark, P E AU - Henderson, M A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract no. 1052 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - solar system KW - imagery KW - public awareness KW - video methods KW - global KW - Jupiter KW - government agencies KW - education KW - giant planets KW - computer programs KW - visualization KW - planets KW - NOAA KW - Science on a Sphere KW - outer planets KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819213?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Planetary+education+and+outreach+using+the+NOAA+Science+on+a+Sphere&rft.au=Simon-Miller%2C+A+A%3BWilliams%2C+D+R%3BSmith%2C+S+M%3BFriedlander%2C+J+S%3BMayo%2C+L+A%3BClark%2C+P+E%3BHenderson%2C+M+A%3BAnonymous&rft.aulast=Simon-Miller&rft.aufirst=A&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.lpi.usra.edu/meetings/lpsc2011/pdf/1052.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 6, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - computer programs; education; giant planets; global; government agencies; imagery; Jupiter; NOAA; outer planets; planets; public awareness; Science on a Sphere; solar system; video methods; visualization ER - TY - JOUR T1 - NASA Planetary Science Summer School; preparing the next generation of planetary mission leaders AN - 1008819180; 2012-039101 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Budney, C J AU - Lowes, L L AU - Sohus, A M AU - Wheeler, T D AU - Wessen, A S AU - Scalice, D M AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract no. 2117 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - solar system KW - programs KW - development KW - Jet Propulsion Laboratory KW - government agencies KW - aerospace engineering KW - education KW - concepts KW - planetary science KW - exploration KW - careers KW - Planetary Science Summer School KW - NASA KW - design KW - planetary science missions KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819180?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=NASA+Planetary+Science+Summer+School%3B+preparing+the+next+generation+of+planetary+mission+leaders&rft.au=Budney%2C+C+J%3BLowes%2C+L+L%3BSohus%2C+A+M%3BWheeler%2C+T+D%3BWessen%2C+A+S%3BScalice%2C+D+M%3BAnonymous&rft.aulast=Budney&rft.aufirst=C&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.lpi.usra.edu/meetings/lpsc2011/pdf/2117.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - TX N1 - SuppNotes - Accessed on Oct. 7, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aerospace engineering; careers; concepts; design; development; education; exploration; government agencies; Jet Propulsion Laboratory; NASA; planetary science; planetary science missions; Planetary Science Summer School; programs; solar system ER - TY - JOUR T1 - Correlation between surface roughness and slope on a lunar impact melt AN - 1008819126; 2012-039027 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Neish, Catherine D AU - Carter, L AU - Bussey, D B J AU - Cahill, J T S AU - Thomson, B J AU - Barnouin, Olivier S AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 1881 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Lunar Orbiter Laser Altimeter KW - imagery KW - lava flows KW - impact features KW - Moon KW - Lunar Reconnaissance Orbiter KW - slopes KW - roughness KW - circular polarization ratio KW - surface textures KW - radar methods KW - Mini-RF KW - melts KW - flows KW - impact melts KW - topography KW - SAR KW - lava KW - pahoehoe KW - impact craters KW - Tycho Crater KW - backscattering KW - Kaguya Orbiter KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819126?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Correlation+between+surface+roughness+and+slope+on+a+lunar+impact+melt&rft.au=Neish%2C+Catherine+D%3BCarter%2C+L%3BBussey%2C+D+B+J%3BCahill%2C+J+T+S%3BThomson%2C+B+J%3BBarnouin%2C+Olivier+S%3BAnonymous&rft.aulast=Neish&rft.aufirst=Catherine&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1881.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 13, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - backscattering; circular polarization ratio; flows; imagery; impact craters; impact features; impact melts; Kaguya Orbiter; lava; lava flows; Lunar Orbiter Laser Altimeter; Lunar Reconnaissance Orbiter; melts; Mini-RF; Moon; pahoehoe; radar methods; roughness; SAR; slopes; surface textures; topography; Tycho Crater ER - TY - JOUR T1 - New estimates of the thickness decay of proximal ejecta from the Orientale Basin using the Lunar Orbiter Laser Altimeter (LOLA) AN - 1008819059; 2012-039018 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Fassett, Caleb I AU - Head, J W AU - Smith, D E AU - Zuber, M T AU - Neumann, G A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 1395 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Lunar Orbiter Laser Altimeter KW - impact features KW - Moon KW - Mare Orientale KW - morphometry KW - ring structures KW - ejecta KW - distribution KW - size KW - topography KW - transient phenomena KW - volume KW - basins KW - thickness KW - LOLA KW - impact craters KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819059?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=New+estimates+of+the+thickness+decay+of+proximal+ejecta+from+the+Orientale+Basin+using+the+Lunar+Orbiter+Laser+Altimeter+%28LOLA%29&rft.au=Fassett%2C+Caleb+I%3BHead%2C+J+W%3BSmith%2C+D+E%3BZuber%2C+M+T%3BNeumann%2C+G+A%3BAnonymous&rft.aulast=Fassett&rft.aufirst=Caleb&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1395.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 20 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 13, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - basins; distribution; ejecta; impact craters; impact features; LOLA; Lunar Orbiter Laser Altimeter; Mare Orientale; Moon; morphometry; ring structures; size; thickness; topography; transient phenomena; volume ER - TY - JOUR T1 - A mineralogical survey of lunar crater central peaks with Moon Mineralogy Mapper data; first results AN - 1008818354; 2012-039147 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Isaacson, Peter J AU - Nettles, J AU - Besse, S AU - Boardman, J W AU - Cheek, L C AU - Clark, R AU - Dhingra, D AU - Hanna, K L Donaldson AU - Head, J W AU - Klima, Rachel L AU - Kramer, G AU - Mall, U AU - Moriarty, D AU - Mustard, J AU - Petro, N E AU - Pieters, Carle M AU - Sunshine, J M AU - Taylor, L A AU - Tompkins, S AU - Whitten, J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract no. 2556 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - silicates KW - near-infrared spectra KW - Bolyai L Crater KW - Moon KW - olivine group KW - lunar craters KW - infrared spectra KW - nesosilicates KW - absorption KW - pyroxene group KW - mineral composition KW - errors KW - mosaics KW - olivine KW - Moon Mineralogy Mapper KW - lunar crust KW - orthosilicates KW - surveys KW - spectra KW - reflectance KW - chain silicates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008818354?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=A+mineralogical+survey+of+lunar+crater+central+peaks+with+Moon+Mineralogy+Mapper+data%3B+first+results&rft.au=Isaacson%2C+Peter+J%3BNettles%2C+J%3BBesse%2C+S%3BBoardman%2C+J+W%3BCheek%2C+L+C%3BClark%2C+R%3BDhingra%2C+D%3BHanna%2C+K+L+Donaldson%3BHead%2C+J+W%3BKlima%2C+Rachel+L%3BKramer%2C+G%3BMall%2C+U%3BMoriarty%2C+D%3BMustard%2C+J%3BPetro%2C+N+E%3BPieters%2C+Carle+M%3BSunshine%2C+J+M%3BTaylor%2C+L+A%3BTompkins%2C+S%3BWhitten%2C+J%3BAnonymous&rft.aulast=Isaacson&rft.aufirst=Peter&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.lpi.usra.edu/meetings/lpsc2011/pdf/2556.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 11, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - absorption; Bolyai L Crater; chain silicates; errors; infrared spectra; lunar craters; lunar crust; mineral composition; Moon; Moon Mineralogy Mapper; mosaics; near-infrared spectra; nesosilicates; olivine; olivine group; orthosilicates; pyroxene group; reflectance; silicates; spectra; surveys ER - TY - JOUR T1 - Using LOLA data to test the reality of candidate lunar basins derived from older data AN - 1008818306; 2012-039044 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Romine, G C AU - Frey, H V AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 1188 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Lunar Orbiter Laser Altimeter KW - Moon KW - Australe Basin KW - Mare Orientale KW - quasi-circular depressions KW - topography KW - Poincare Basin KW - lunar crust KW - depressions KW - basins KW - thickness KW - lunar basins KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008818306?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Using+LOLA+data+to+test+the+reality+of+candidate+lunar+basins+derived+from+older+data&rft.au=Romine%2C+G+C%3BFrey%2C+H+V%3BAnonymous&rft.aulast=Romine&rft.aufirst=G&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1188.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 14, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Australe Basin; basins; depressions; lunar basins; lunar crust; Lunar Orbiter Laser Altimeter; Mare Orientale; Moon; Poincare Basin; quasi-circular depressions; thickness; topography ER - TY - JOUR T1 - A CAI in the Ivuna CI1 chondrite AN - 1008818304; 2012-039128 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Frank, David R AU - Zolensky, M AU - Martinez, J AU - Mikouchi, T AU - Ohsumi, K AU - Hagiya, K AU - Satake, W AU - Le, L AU - Ross, D AU - Peslier, A H AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract no. 2785 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - sorosilicates KW - silicates KW - stony meteorites KW - calcium-aluminum inclusions KW - electron probe data KW - meteorites KW - melilite group KW - pyroxene group KW - mineral composition KW - clinopyroxene KW - melilite KW - inclusions KW - orthosilicates KW - oxides KW - alloys KW - chondrites KW - chain silicates KW - CI chondrites KW - grossmanite KW - spinel KW - Ivuna Meteorite KW - carbonaceous chondrites KW - aqueous alteration KW - petrography KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008818304?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=A+CAI+in+the+Ivuna+CI1+chondrite&rft.au=Frank%2C+David+R%3BZolensky%2C+M%3BMartinez%2C+J%3BMikouchi%2C+T%3BOhsumi%2C+K%3BHagiya%2C+K%3BSatake%2C+W%3BLe%2C+L%3BRoss%2C+D%3BPeslier%2C+A+H%3BAnonymous&rft.aulast=Frank&rft.aufirst=David&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.lpi.usra.edu/meetings/lpsc2011/pdf/2785.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 11, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alloys; aqueous alteration; calcium-aluminum inclusions; carbonaceous chondrites; chain silicates; chondrites; CI chondrites; clinopyroxene; electron probe data; grossmanite; inclusions; Ivuna Meteorite; melilite; melilite group; meteorites; mineral composition; orthosilicates; oxides; petrography; pyroxene group; silicates; sorosilicates; spinel; stony meteorites ER - TY - JOUR T1 - Lunar impact basins; crater statistics and sequence from a Lunar Orbiter Laser Altimeter (LOLA) catalog of large lunar craters (> or =20 km) AN - 1008818295; 2012-039043 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Fassett, Caleb I AU - Kadish, Seth J AU - Head, J W AU - Smith, D E AU - Zuber, M T AU - Neumann, G A AU - Mazarico, Erwan AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 1539 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Lunar Orbiter Laser Altimeter KW - relative age KW - impact features KW - Moon KW - statistical analysis KW - mapping KW - lunar craters KW - size KW - impact basins KW - chronology KW - basins KW - impact craters KW - catalogs KW - Nectarian KW - Mare Nectaris KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008818295?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Lunar+impact+basins%3B+crater+statistics+and+sequence+from+a+Lunar+Orbiter+Laser+Altimeter+%28LOLA%29+catalog+of+large+lunar+craters+%28%26gt%3B+or+%3D20+km%29&rft.au=Fassett%2C+Caleb+I%3BKadish%2C+Seth+J%3BHead%2C+J+W%3BSmith%2C+D+E%3BZuber%2C+M+T%3BNeumann%2C+G+A%3BMazarico%2C+Erwan%3BAnonymous&rft.aulast=Fassett&rft.aufirst=Caleb&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1539.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Dec. 14, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - basins; catalogs; chronology; impact basins; impact craters; impact features; lunar craters; Lunar Orbiter Laser Altimeter; mapping; Mare Nectaris; Moon; Nectarian; relative age; size; statistical analysis ER - TY - JOUR T1 - Electrical evolution of a dust plume from a low energy lunar impact; a model analog to LCROSS AN - 1008818124; 2012-039062 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Farrell, William M AU - Stubbs, T J AU - Jackson, T L AU - Colaprete, Anthony AU - Heldmann, J L AU - Schultz, P H AU - Killen, R M AU - Delory, G T AU - Halekas, J S AU - Marshall, J R AU - Zimmerman, Michael I AU - Collier, M R AU - Vondrak, R R AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 1760 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - plumes KW - electrical properties KW - impact features KW - Moon KW - clastic sediments KW - Monte Carlo analysis KW - grain size KW - statistical analysis KW - standard deviation KW - impacts KW - tribocharging KW - ejecta KW - lunar craters KW - LCROSS Mission KW - models KW - dynamics KW - dust KW - solar radiation KW - sediments KW - impact craters KW - electrical currents KW - photoelectrons KW - electrons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008818124?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Electrical+evolution+of+a+dust+plume+from+a+low+energy+lunar+impact%3B+a+model+analog+to+LCROSS&rft.au=Farrell%2C+William+M%3BStubbs%2C+T+J%3BJackson%2C+T+L%3BColaprete%2C+Anthony%3BHeldmann%2C+J+L%3BSchultz%2C+P+H%3BKillen%2C+R+M%3BDelory%2C+G+T%3BHalekas%2C+J+S%3BMarshall%2C+J+R%3BZimmerman%2C+Michael+I%3BCollier%2C+M+R%3BVondrak%2C+R+R%3BAnonymous&rft.aulast=Farrell&rft.aufirst=William&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1760.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 15, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - clastic sediments; dust; dynamics; ejecta; electrical currents; electrical properties; electrons; grain size; impact craters; impact features; impacts; LCROSS Mission; lunar craters; models; Monte Carlo analysis; Moon; photoelectrons; plumes; sediments; solar radiation; standard deviation; statistical analysis; tribocharging ER - TY - JOUR T1 - Ground based observations of lunar water; current status AN - 1008818114; 2012-039061 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Rivkin, A S AU - Sunshine, J M AU - Blewett, David T AU - Cohen, B A AU - Hurley, D M AU - Grier, J A AU - Hibbitts, C A AU - Klima, Rachel L AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 2196 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - water KW - albedo KW - Earth-based observations KW - telescope methods KW - Moon KW - solar wind KW - data processing KW - Oceanus Procellarum KW - Reiner Gamma Formation KW - infrared spectra KW - photometry KW - solar radiation KW - spectra KW - corrections KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008818114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Ground+based+observations+of+lunar+water%3B+current+status&rft.au=Rivkin%2C+A+S%3BSunshine%2C+J+M%3BBlewett%2C+David+T%3BCohen%2C+B+A%3BHurley%2C+D+M%3BGrier%2C+J+A%3BHibbitts%2C+C+A%3BKlima%2C+Rachel+L%3BAnonymous&rft.aulast=Rivkin&rft.aufirst=A&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2196.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 15, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - albedo; corrections; data processing; Earth-based observations; infrared spectra; Moon; Oceanus Procellarum; photometry; regolith; Reiner Gamma Formation; solar radiation; solar wind; spectra; telescope methods; water ER - TY - JOUR T1 - The final minute; results from the LCROSS solar viewing NIR spectrometer AN - 1008818102; 2012-039060 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Colaprete, Anthony AU - Shirley, M AU - Heldmann, J L AU - Wooden, D H AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 2037 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - water KW - Lunar Crater Observation and Sensing Satellite KW - near-infrared spectra KW - plumes KW - monitoring KW - impact features KW - Moon KW - Cabeus Crater KW - altitude KW - water vapor KW - impacts KW - ejecta KW - LCROSS Mission KW - morphology KW - ice KW - solar radiation KW - signal-to-noise ratio KW - impact craters KW - spectra KW - instruments KW - real-time methods KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008818102?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+final+minute%3B+results+from+the+LCROSS+solar+viewing+NIR+spectrometer&rft.au=Colaprete%2C+Anthony%3BShirley%2C+M%3BHeldmann%2C+J+L%3BWooden%2C+D+H%3BAnonymous&rft.aulast=Colaprete&rft.aufirst=Anthony&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2037.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 1 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 15, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - altitude; Cabeus Crater; ejecta; ice; impact craters; impact features; impacts; instruments; LCROSS Mission; Lunar Crater Observation and Sensing Satellite; monitoring; Moon; morphology; near-infrared spectra; plumes; real-time methods; signal-to-noise ratio; solar radiation; spectra; water; water vapor ER - TY - JOUR T1 - Expedition Earth and Beyond; engaging classrooms in student-led research using NASA data, access to scientists, and integrated educational strategies AN - 1008817863; 2012-039105 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Graff, Paige V AU - Stefanov, W L AU - Willis, K J AU - Runco, S AU - McCollum, T AU - Baker, M AU - Lindgren, C AU - Mailhot, M AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract no. 2104 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - imagery KW - International Space Station KW - Venus KW - Jupiter KW - government agencies KW - Mars KW - education KW - photography KW - giant planets KW - educational resources KW - Mercury Planet KW - curricula KW - outer planets KW - orbital observations KW - programs KW - Earth KW - Moon KW - terrestrial planets KW - planets KW - K-12 education KW - virtual reality KW - NASA KW - planetology KW - Expedition Earth and Beyond program KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008817863?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Expedition+Earth+and+Beyond%3B+engaging+classrooms+in+student-led+research+using+NASA+data%2C+access+to+scientists%2C+and+integrated+educational+strategies&rft.au=Graff%2C+Paige+V%3BStefanov%2C+W+L%3BWillis%2C+K+J%3BRunco%2C+S%3BMcCollum%2C+T%3BBaker%2C+M%3BLindgren%2C+C%3BMailhot%2C+M%3BAnonymous&rft.aulast=Graff&rft.aufirst=Paige&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.lpi.usra.edu/meetings/lpsc2011/pdf/2104.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - SuppNotes - Accessed on Oct. 7, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - curricula; Earth; education; educational resources; Expedition Earth and Beyond program; giant planets; government agencies; imagery; International Space Station; Jupiter; K-12 education; Mars; Mercury Planet; Moon; NASA; orbital observations; outer planets; photography; planetology; planets; programs; terrestrial planets; Venus; virtual reality ER - TY - JOUR T1 - Modeling of firn compaction for estimating ice-sheet mass change from observed ice-sheet elevation change AN - 1008817838; 2012-037533 AB - Changes in ice-sheet surface elevation are caused by a combination of ice-dynamic imbalance, ablation, temporal variations in accumulation rate, firn compaction and underlying bedrock motion. Thus, deriving the rate of ice-sheet mass change from measured surface elevation change requires information on the rate of firn compaction and bedrock motion, which do not involve changes in mass, and requires an appropriate firn density to associate with elevation changes induced by recent accumulation rate variability. We use a 25 year record of surface temperature and a parameterization for accumulation change as a function of temperature to drive a firn compaction model. We apply this formulation to ICESat measurements of surface elevation change at three locations on the Greenland ice sheet in order to separate the accumulation-driven changes from the ice-dynamic/ablation-driven changes, and thus to derive the corresponding mass change. Our calculated densities for the accumulation-driven changes range from 410 to 610 kg m (super -3) , which along with 900 kg m (super -3) for the dynamic/ablation-driven changes gives average densities ranging from 680 to 790 kg m (super -3) . We show that using an average (or 'effective') density to convert elevation change to mass change is not valid where the accumulation and the dynamic elevation changes are of opposite sign. JF - Annals of Glaciology AU - Li, Jun AU - Zwally, H Jay AU - van der Veen, Kees Y1 - 2011 PY - 2011 DA - 2011 SP - 1 EP - 7 PB - International Glaciological Society, Cambridge VL - 52 IS - 59 SN - 0260-3055, 0260-3055 KW - ice cover thickness KW - ICESat KW - Arctic region KW - firn KW - Greenland ice sheet KW - ice cover KW - satellite methods KW - ice sheets KW - temperature KW - models KW - compaction KW - Greenland KW - mass balance KW - ice KW - glacial geology KW - remote sensing KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008817838?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annals+of+Glaciology&rft.atitle=Modeling+of+firn+compaction+for+estimating+ice-sheet+mass+change+from+observed+ice-sheet+elevation+change&rft.au=Li%2C+Jun%3BZwally%2C+H+Jay%3Bvan+der+Veen%2C+Kees&rft.aulast=Li&rft.aufirst=Jun&rft.date=2011-01-01&rft.volume=52&rft.issue=59&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Annals+of+Glaciology&rft.issn=02603055&rft_id=info:doi/ L2 - http://www.igsoc.org/annals/v52/59/a59A076.pdf http://www.igsoc.org/annals/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 25 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Arctic region; compaction; firn; glacial geology; Greenland; Greenland ice sheet; ice; ice cover; ice cover thickness; ice sheets; ICESat; mass balance; models; remote sensing; satellite methods; temperature ER - TY - JOUR T1 - The Moscoviense Basin; insights into an atypical basin AN - 1008817829; 2012-039015 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Thaisen, K G AU - Taylor, L A AU - Head, J W AU - Pieters, Carle M AU - Isaacson, Peter J AU - Nettles, J AU - Kramer, G Y AU - Petro, N E AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 2574 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Moon KW - crustal thinning KW - Chandrayaan-1 Mission KW - impacts KW - ring structures KW - maria KW - ejecta KW - Moscoviense Basin KW - melts KW - iron KW - impact melts KW - Mare Imbrium KW - farside KW - transient phenomena KW - oblique orientation KW - titanium KW - metals KW - Moon Mineralogy Mapper KW - basins KW - multiple impacts KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008817829?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+Moscoviense+Basin%3B+insights+into+an+atypical+basin&rft.au=Thaisen%2C+K+G%3BTaylor%2C+L+A%3BHead%2C+J+W%3BPieters%2C+Carle+M%3BIsaacson%2C+Peter+J%3BNettles%2C+J%3BKramer%2C+G+Y%3BPetro%2C+N+E%3BAnonymous&rft.aulast=Thaisen&rft.aufirst=K&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2574.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. incl. geol. sketch map N1 - SuppNotes - Accessed on Dec. 13, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - basins; Chandrayaan-1 Mission; crustal thinning; ejecta; farside; impact melts; impacts; iron; Mare Imbrium; maria; melts; metals; Moon; Moon Mineralogy Mapper; Moscoviense Basin; multiple impacts; oblique orientation; ring structures; titanium; transient phenomena ER - TY - JOUR T1 - Compositional dependencies of lunar high-energy epithermal neutrons AN - 1008816364; 2012-039068 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lawrence, David J AU - Eke, Vince R AU - Elphic, Richard C AU - Feldman, William C AU - Funsten, Herbert O AU - Prettyman, Thomas H AU - Teodoro, Luis F A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 2206 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - isotopes KW - Lunar Prospector Program KW - LEND instrument KW - mapping KW - He-3 KW - stable isotopes KW - iron KW - noble gases KW - epithermal neutrons KW - helium KW - samarium KW - rare earths KW - orbital observations KW - chemical composition KW - lunar soils KW - polar regions KW - high-energy epithermal neutrons KW - equatorial region KW - Moon KW - Lunar Exploration Neutron Detector KW - low-energy epithermal neutrons KW - gadolinium KW - neutrons KW - neutron probe KW - titanium KW - metals KW - hydrogen KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008816364?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Compositional+dependencies+of+lunar+high-energy+epithermal+neutrons&rft.au=Lawrence%2C+David+J%3BEke%2C+Vince+R%3BElphic%2C+Richard+C%3BFeldman%2C+William+C%3BFunsten%2C+Herbert+O%3BPrettyman%2C+Thomas+H%3BTeodoro%2C+Luis+F+A%3BAnonymous&rft.aulast=Lawrence&rft.aufirst=David&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2206.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 19, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chemical composition; epithermal neutrons; equatorial region; gadolinium; He-3; helium; high-energy epithermal neutrons; hydrogen; iron; isotopes; LEND instrument; low-energy epithermal neutrons; Lunar Exploration Neutron Detector; Lunar Prospector Program; lunar soils; mapping; metals; Moon; neutron probe; neutrons; noble gases; orbital observations; polar regions; rare earths; samarium; stable isotopes; titanium ER - TY - JOUR T1 - Insolation effects on the Moon; high topographic slope observations from the LRO LEND and LOLA instruments AN - 1008816354; 2012-039065 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - McClanahan, Timothy P AU - Mitrofanov, I G AU - Boynton, W V AU - Chin, G AU - Starr, R D AU - Evans, L G AU - Droege, G AU - Sanin, A B AU - Garvin, James B AU - Trombka, J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 1970 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Lunar Orbiter Laser Altimeter KW - orientation KW - permafrost KW - Moon KW - Lunar Reconnaissance Orbiter KW - slopes KW - roughness KW - LEND instrument KW - mapping KW - Lunar Exploration Neutron Detector KW - digital terrain models KW - geometry KW - volatiles KW - topography KW - hydrogen KW - permanently shadowed regions KW - epithermal neutrons KW - LOLA KW - insolation KW - mobility KW - depletion KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008816354?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Insolation+effects+on+the+Moon%3B+high+topographic+slope+observations+from+the+LRO+LEND+and+LOLA+instruments&rft.au=McClanahan%2C+Timothy+P%3BMitrofanov%2C+I+G%3BBoynton%2C+W+V%3BChin%2C+G%3BStarr%2C+R+D%3BEvans%2C+L+G%3BDroege%2C+G%3BSanin%2C+A+B%3BGarvin%2C+James+B%3BTrombka%2C+J%3BAnonymous&rft.aulast=McClanahan&rft.aufirst=Timothy&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1970.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 15, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - depletion; digital terrain models; epithermal neutrons; geometry; hydrogen; insolation; LEND instrument; LOLA; Lunar Exploration Neutron Detector; Lunar Orbiter Laser Altimeter; Lunar Reconnaissance Orbiter; mapping; mobility; Moon; orientation; permafrost; permanently shadowed regions; regolith; roughness; slopes; topography; volatiles ER - TY - JOUR T1 - Selenodesy with LRO; radio tracking and altimetric crossovers to improve orbit knowledge and gravity field estimation AN - 1008816344; 2012-039052 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Mazarico, Erwan AU - Rowlands, D D AU - Neumann, G A AU - Torrence, M H AU - Smith, D E AU - Zuber, M T AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 2215 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Lunar Orbiter Laser Altimeter KW - Moon KW - Lunar Reconnaissance Orbiter KW - orbits KW - trajectories KW - mapping KW - altimetry KW - selenodesy KW - geometry KW - spherical harmonic analysis KW - models KW - gravity field KW - navigation KW - radio-wave methods KW - orbital observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008816344?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Selenodesy+with+LRO%3B+radio+tracking+and+altimetric+crossovers+to+improve+orbit+knowledge+and+gravity+field+estimation&rft.au=Mazarico%2C+Erwan%3BRowlands%2C+D+D%3BNeumann%2C+G+A%3BTorrence%2C+M+H%3BSmith%2C+D+E%3BZuber%2C+M+T%3BAnonymous&rft.aulast=Mazarico&rft.aufirst=Erwan&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2215.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Accessed on Dec. 15, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - altimetry; geometry; gravity field; Lunar Orbiter Laser Altimeter; Lunar Reconnaissance Orbiter; mapping; models; Moon; navigation; orbital observations; orbits; radio-wave methods; selenodesy; spherical harmonic analysis; trajectories ER - TY - JOUR T1 - Lunar Orbiter Laser Altimeter measures of slope and roughness AN - 1008816341; 2012-039051 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Neumann, Gregory A AU - Mazarico, Erwan AU - Smith, David E AU - Zuber, Maria T AU - Glaeser, Philipp AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 2313 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Lunar Orbiter Laser Altimeter KW - topography KW - terrains KW - Moon KW - slopes KW - classification KW - statistical analysis KW - standard deviation KW - roughness KW - mapping KW - altimetry KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008816341?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Lunar+Orbiter+Laser+Altimeter+measures+of+slope+and+roughness&rft.au=Neumann%2C+Gregory+A%3BMazarico%2C+Erwan%3BSmith%2C+David+E%3BZuber%2C+Maria+T%3BGlaeser%2C+Philipp%3BAnonymous&rft.aulast=Neumann&rft.aufirst=Gregory&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2313.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 15, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - altimetry; classification; Lunar Orbiter Laser Altimeter; mapping; Moon; roughness; slopes; standard deviation; statistical analysis; terrains; topography ER - TY - JOUR T1 - The plasma wake downstream of lunar topographic obstacles; preliminary results from 2D particle simulations AN - 1008816299; 2012-039074 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Zimmerman, Michael I AU - Farrell, William M AU - Stubbs, T J AU - Halekas, J S AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 1836 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - plasma KW - Moon KW - solar wind KW - electrical field KW - simulation KW - two-dimensional models KW - volatiles KW - topography KW - permanently shadowed regions KW - particles KW - electrical currents KW - electrons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008816299?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+plasma+wake+downstream+of+lunar+topographic+obstacles%3B+preliminary+results+from+2D+particle+simulations&rft.au=Zimmerman%2C+Michael+I%3BFarrell%2C+William+M%3BStubbs%2C+T+J%3BHalekas%2C+J+S%3BAnonymous&rft.aulast=Zimmerman&rft.aufirst=Michael&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1836.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 20, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - electrical currents; electrical field; electrons; Moon; particles; permanently shadowed regions; plasma; simulation; solar wind; topography; two-dimensional models; volatiles ER - TY - JOUR T1 - Global mapping of neutron emission from the Moon according to LEND data AN - 1008815963; 2012-039064 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Sanin, A B AU - Mitrofanov, I G AU - Boynton, W AU - Evans, L G AU - Harshman, K AU - Kozyrev, A AU - Litvak, M L AU - Malakhov, A AU - McClanahan, Timothy P AU - Milikh, G AU - Mokrousov, M AU - Sagdeev, R AU - Shevchenko, V AU - Schvetsov, V AU - Starr, R D AU - Trombka, J AU - Vostrukhin, A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 1797 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - fast neutrons KW - albedo KW - Moon KW - Lunar Reconnaissance Orbiter KW - thermal neutrons KW - global KW - LEND instrument KW - mapping KW - Lunar Exploration Neutron Detector KW - lunar highlands KW - maria KW - lunar craters KW - South Pole-Aitken Basin KW - neutrons KW - hydrogen KW - permanently shadowed regions KW - epithermal neutrons KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008815963?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Global+mapping+of+neutron+emission+from+the+Moon+according+to+LEND+data&rft.au=Sanin%2C+A+B%3BMitrofanov%2C+I+G%3BBoynton%2C+W%3BEvans%2C+L+G%3BHarshman%2C+K%3BKozyrev%2C+A%3BLitvak%2C+M+L%3BMalakhov%2C+A%3BMcClanahan%2C+Timothy+P%3BMilikh%2C+G%3BMokrousov%2C+M%3BSagdeev%2C+R%3BShevchenko%2C+V%3BSchvetsov%2C+V%3BStarr%2C+R+D%3BTrombka%2C+J%3BVostrukhin%2C+A%3BAnonymous&rft.aulast=Sanin&rft.aufirst=A&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1797.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - sketch maps N1 - SuppNotes - Accessed on Dec. 15, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - albedo; epithermal neutrons; fast neutrons; global; hydrogen; LEND instrument; lunar craters; Lunar Exploration Neutron Detector; lunar highlands; Lunar Reconnaissance Orbiter; mapping; maria; Moon; neutrons; permanently shadowed regions; regolith; South Pole-Aitken Basin; thermal neutrons ER - TY - JOUR T1 - LEND studies of diversity of PSRs on the Moon AN - 1008815955; 2012-039063 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Litvak, M L AU - Mitrofanov, I G AU - Sanin, A B AU - Boynton, W V AU - Chin, G AU - Garvin, James B AU - Golovin, D AU - Evans, L G AU - Harshman, K AU - Kozyrev, A S AU - Malakhov, A AU - McClanahan, Timothy P AU - Milikh, G AU - Mokrousov, M AU - Nandikotkur, G AU - Nuzhdin, I AU - Sagdeev, R AU - Shevchenko, V AU - Shvetsov, V AU - Smith, D E AU - Starr, R D AU - Tretyakov, V I AU - Trombka, J AU - Varennikov, A AU - Vostrukhin, A AU - Zuber, M T AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 1765 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - water KW - polar regions KW - neutrons KW - Moon KW - Lunar Reconnaissance Orbiter KW - ice KW - hydrogen KW - permanently shadowed regions KW - epithermal neutrons KW - LEND instrument KW - Lunar Exploration Neutron Detector KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008815955?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=LEND+studies+of+diversity+of+PSRs+on+the+Moon&rft.au=Litvak%2C+M+L%3BMitrofanov%2C+I+G%3BSanin%2C+A+B%3BBoynton%2C+W+V%3BChin%2C+G%3BGarvin%2C+James+B%3BGolovin%2C+D%3BEvans%2C+L+G%3BHarshman%2C+K%3BKozyrev%2C+A+S%3BMalakhov%2C+A%3BMcClanahan%2C+Timothy+P%3BMilikh%2C+G%3BMokrousov%2C+M%3BNandikotkur%2C+G%3BNuzhdin%2C+I%3BSagdeev%2C+R%3BShevchenko%2C+V%3BShvetsov%2C+V%3BSmith%2C+D+E%3BStarr%2C+R+D%3BTretyakov%2C+V+I%3BTrombka%2C+J%3BVarennikov%2C+A%3BVostrukhin%2C+A%3BZuber%2C+M+T%3BAnonymous&rft.aulast=Litvak&rft.aufirst=M&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1765.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 15, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - epithermal neutrons; hydrogen; ice; LEND instrument; Lunar Exploration Neutron Detector; Lunar Reconnaissance Orbiter; Moon; neutrons; permanently shadowed regions; polar regions; water ER - TY - JOUR T1 - WorldWide Telescope Mars AN - 1008815947; 2012-039085 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Scharff, Ted AU - Beyer, Ross A AU - Broxton, Michael AU - Lundy, Mike AU - Fay, Jonathan AU - Turcan, Peter AU - Fay, Dan AU - Messeri, Lisa AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract no. 2337 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - imagery KW - spatial data KW - public awareness KW - global KW - government agencies KW - data processing KW - Microsoft KW - Mars KW - Mars Orbiter Camera KW - education KW - terrestrial planets KW - computer programs KW - planets KW - mosaics KW - NASA KW - WorldWide Telescope Mars KW - HiRISE KW - orbital observations KW - computer networks KW - Internet KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008815947?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=WorldWide+Telescope+Mars&rft.au=Scharff%2C+Ted%3BBeyer%2C+Ross+A%3BBroxton%2C+Michael%3BLundy%2C+Mike%3BFay%2C+Jonathan%3BTurcan%2C+Peter%3BFay%2C+Dan%3BMesseri%2C+Lisa%3BAnonymous&rft.aulast=Scharff&rft.aufirst=Ted&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - www.lpi.usra.edu/meetings/lpsc2011/pdf/2337.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 6, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - computer networks; computer programs; data processing; education; global; government agencies; HiRISE; imagery; Internet; Mars; Mars Orbiter Camera; Microsoft; mosaics; NASA; orbital observations; planets; public awareness; spatial data; terrestrial planets; WorldWide Telescope Mars ER - TY - JOUR T1 - Regional cataloguing of lunar crater morphology AN - 1008815936; 2012-039049 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Talpe, Matthieu J AU - Zuber, Maria T AU - Clark, Madeline E AU - Mazarico, Erwan AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 2549 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Lunar Orbiter Laser Altimeter KW - degradation KW - Moon KW - Lunar Reconnaissance Orbiter KW - morphometry KW - lunar highlands KW - maria KW - Mare Serenitatis KW - lunar craters KW - size KW - morphology KW - South Pole-Aitken Basin KW - slumping KW - topography KW - mass movements KW - depth-to-diameter ratio KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008815936?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Regional+cataloguing+of+lunar+crater+morphology&rft.au=Talpe%2C+Matthieu+J%3BZuber%2C+Maria+T%3BClark%2C+Madeline+E%3BMazarico%2C+Erwan%3BAnonymous&rft.aulast=Talpe&rft.aufirst=Matthieu&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2549.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Dec. 15, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - degradation; depth-to-diameter ratio; lunar craters; lunar highlands; Lunar Orbiter Laser Altimeter; Lunar Reconnaissance Orbiter; Mare Serenitatis; maria; mass movements; Moon; morphology; morphometry; size; slumping; South Pole-Aitken Basin; topography ER - TY - JOUR T1 - A global catalog of large lunar craters (> or =20 km) from the Lunar Orbiter Laser Altimeter AN - 1008815917; 2012-039047 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Kadish, Seth J AU - Fassett, Caleb I AU - Head, J W AU - Smith, D E AU - Zuber, M T AU - Neumann, G A AU - Mazarico, Erwan AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 1006 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Lunar Orbiter Laser Altimeter KW - imagery KW - degradation KW - impact features KW - Moon KW - global KW - resurfacing KW - mapping KW - lunar highlands KW - maria KW - lunar craters KW - morphology KW - South Pole-Aitken Basin KW - size distribution KW - topography KW - impact craters KW - catalogs KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008815917?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=A+global+catalog+of+large+lunar+craters+%28%26gt%3B+or+%3D20+km%29+from+the+Lunar+Orbiter+Laser+Altimeter&rft.au=Kadish%2C+Seth+J%3BFassett%2C+Caleb+I%3BHead%2C+J+W%3BSmith%2C+D+E%3BZuber%2C+M+T%3BNeumann%2C+G+A%3BMazarico%2C+Erwan%3BAnonymous&rft.aulast=Kadish&rft.aufirst=Seth&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1006.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. incl. sketch maps N1 - SuppNotes - Accessed on Dec. 15, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - catalogs; degradation; global; imagery; impact craters; impact features; lunar craters; lunar highlands; Lunar Orbiter Laser Altimeter; mapping; maria; Moon; morphology; resurfacing; size distribution; South Pole-Aitken Basin; topography ER - TY - JOUR T1 - New analysis of Lunar Prospector radio tracking data improves the nearside gravity field with a higher resolution to degree and order 200 AN - 1008815422; 2012-039055 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Han, Shin Chan AU - Mazarico, Erwan AU - Rowlands, D D AU - Lemoine, F G AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 2404 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - Lunar Orbiter Laser Altimeter KW - high-resolution methods KW - GLGM3 model KW - Moon KW - Lunar Reconnaissance Orbiter KW - Doppler effect KW - passband filters KW - Lunar Prospector Program KW - trajectories KW - LPE200 KW - lunar craters KW - models KW - gravity anomalies KW - gravity field KW - topography KW - errors KW - radio-wave methods KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008815422?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=New+analysis+of+Lunar+Prospector+radio+tracking+data+improves+the+nearside+gravity+field+with+a+higher+resolution+to+degree+and+order+200&rft.au=Han%2C+Shin+Chan%3BMazarico%2C+Erwan%3BRowlands%2C+D+D%3BLemoine%2C+F+G%3BAnonymous&rft.aulast=Han&rft.aufirst=Shin&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2404.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 15, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Doppler effect; errors; GLGM3 model; gravity anomalies; gravity field; high-resolution methods; LPE200; lunar craters; Lunar Orbiter Laser Altimeter; Lunar Prospector Program; Lunar Reconnaissance Orbiter; models; Moon; passband filters; radio-wave methods; topography; trajectories ER -