TY - NEWS T1 - NASA Taking Stock of Phytoplankton Populations in the Pacific AN - 1865697687 JF - UPI Space Daily AU - Samson Reiny for NASA's Earth Science News Y1 - 2017/02/08/ PY - 2017 DA - 2017 Feb 08 CY - Washington KW - Aeronautics And Space Flight KW - Research KW - Color KW - Plankton KW - Researchers KW - Satellites KW - Studies KW - Salinity KW - Carbon dioxide KW - Oregon KW - Hawaii KW - Maryland UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1865697687?accountid=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+Taking+Stock+of+Phytoplankton+Populations+in+the+Pacific&rft.au=Samson+Reiny+for+NASA%27s+Earth+Science+News&rft.aulast=Samson+Reiny+for+NASA%27s+Earth+Science+News&rft.aufirst=&rft.date=2017-02-08&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 - Name - National Aeronautics & Space Administration--NASA N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2017-02-08 ER - TY - JOUR T1 - Assessing the effect of long-range pollutant transportation on air quality in Seoul using the conditional potential source contribution function method AN - 1859482568; PQ0003993422 AB - It is important to estimate the effects of the long-range transport of atmospheric pollutants for efficient and effective strategies to control air quality. In this study, the contributions of trans-boundary transport to the mean concentrations of SO2, NO2, CO, and PM10 in Seoul, Korea from 2001 to 2014 were estimated based on the conditional potential source contribution function (CPSCF) method. Eastern China was found to be the major source of trans-boundary pollution in Seoul, but moderate sources were also located in northeastern China. The contribution of long-range transport from Japan was negligible. The spatial distributions of the potential source contribution function (PSCF) values of each pollutant showed reasonable consistency with their emission inventory and satellite products. The PSCF values of SO2 and PM10 from eastern China were higher than those of NO2 and CO. The mean concentrations of SO2, NO2, CO, and PM10 in Seoul for the period from 2001 to 2014 were 5.34, 37.0, and 619.1 ppb, and 57.4 4 mu g/m3, respectively. The contributions of long-range transport to the mean concentrations of SO2, NO2, CO, and PM10 in Seoul were 0.74, 3.4, and 39.0 ppb, and 12.1 mu g/m3, respectively, which are 14%, 9%, 6%, and 21% of the mean concentrations, respectively. The annual mean concentrations of SO2 and NO2 followed statistically significant increasing linear trends (0.5 and 1.6 ppb per decade, respectively), whereas the trends in the annual mean concentrations of CO and PM10 were statistically insignificant. The trends in the ratio of the increased concentrations associated with long-range transport to the annual mean concentrations of the pollutants were statistically insignificant. However, the results indicate that the trans-boundary transport of SO2, NO2, CO, and PM10 from eastern China consistently affected air quality in Seoul over the study period (2001-2014). Regionally, the effects of the long-range transport of pollutants from Beijing and Harbin-Changchun on air quality in Seoul have become more significant over this period. JF - Atmospheric Environment AU - Jeong, Ukkyo AU - Kim, Jhoon AU - Lee, Hanlim AU - Lee, Yun Gon AD - Goddard Space Flight Center, National Aeronautics and Space Administration, Greenbelt, MD, USA Y1 - 2017/02// PY - 2017 DA - February 2017 SP - 33 EP - 44 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 150 SN - 1352-2310, 1352-2310 KW - Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Environment Abstracts; Oceanic Abstracts; Water Resources Abstracts KW - Long-range transport KW - PM10 KW - SO2 KW - CO KW - NO2 KW - Potential source contribution function UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859482568?accountid=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+Environment&rft.atitle=Assessing+the+effect+of+long-range+pollutant+transportation+on+air+quality+in+Seoul+using+the+conditional+potential+source+contribution+function+method&rft.au=Jeong%2C+Ukkyo%3BKim%2C+Jhoon%3BLee%2C+Hanlim%3BLee%2C+Yun+Gon&rft.aulast=Jeong&rft.aufirst=Ukkyo&rft.date=2017-02-01&rft.volume=150&rft.issue=&rft.spage=33&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2Fj.atmosenv.2016.11.017 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2017-01-01 N1 - Last updated - 2017-01-18 DO - http://dx.doi.org/10.1016/j.atmosenv.2016.11.017 ER - TY - NEWS T1 - NASA Airborne Mission Chases Air Pollution Through the Seasons AN - 1862951102 JF - UPI Space Daily AU - Ellen Gray for NASA Earth Science News Y1 - 2017/01/31/ PY - 2017 DA - 2017 Jan 31 CY - Washington KW - Aeronautics And Space Flight KW - Scientists KW - Ozone KW - Science KW - Atmosphere KW - Earth KW - Air pollution KW - Arctic region KW - Europe KW - United States--US KW - Southern Hemisphere KW - California KW - Canada KW - Massachusetts KW - Pacific Ocean KW - Northern Hemisphere KW - Alaska KW - Russia KW - New Zealand UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1862951102?accountid=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+Chases+Air+Pollution+Through+the+Seasons&rft.au=Ellen+Gray+for+NASA+Earth+Science+News&rft.aulast=Ellen+Gray+for+NASA+Earth+Science+News&rft.aufirst=&rft.date=2017-01-31&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 - Name - Harvard University; National Aeronautics & Space Administration--NASA N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - Last updated - 2017-01-31 ER - TY - NEWS T1 - How satellite data changed chimpanzee conservation efforts AN - 1862947108 JF - UPI Space Daily AU - Ellen Gray for NASA Earth Science News Y1 - 2017/01/31/ PY - 2017 DA - 2017 Jan 31 CY - Washington KW - Aeronautics And Space Flight KW - Open data KW - Scientists KW - Remote sensing KW - Watersheds KW - Forests KW - Habitats KW - National parks KW - Land use KW - Landsat satellites KW - Lake Tanganyika KW - Tanzania KW - Virginia KW - Congo Basin KW - Africa KW - Uganda KW - United States--US KW - Goodall, Jane UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1862947108?accountid=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=How+satellite+data+changed+chimpanzee+conservation+efforts&rft.au=Ellen+Gray+for+NASA+Earth+Science+News&rft.aulast=Ellen+Gray+for+NASA+Earth+Science+News&rft.aufirst=&rft.date=2017-01-31&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 - Name - National Aeronautics & Space Administration--NASA; US Geological Survey; Jane Goodall Institute N1 - Copyright - Copyright (c) by United Press International. All Rights Reserved. N1 - People - Goodall, Jane N1 - Last updated - 2017-01-31 ER - TY - NEWS T1 - NASA Study Finds a Connection Between Wildfires and Drought AN - 1858549428 JF - UPI Space Daily AU - Samson Reiny for NASA Earth News Y1 - 2017/01/15/ PY - 2017 DA - 2017 Jan 15 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1858549428?accountid=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+Study+Finds+a+Connection+Between+Wildfires+and+Drought&rft.au=Samson+Reiny+for+NASA+Earth+News&rft.aulast=Samson+Reiny+for+NASA+Earth+News&rft.aufirst=&rft.date=2017-01-15&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 - 2017-01-15 ER - TY - NEWS T1 - NASA research is key to future of air transportation AN - 1858549397 JF - UPI Space Daily AU - Jim Banke for NASA Aeronautics News Y1 - 2017/01/15/ PY - 2017 DA - 2017 Jan 15 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1858549397?accountid=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+research+is+key+to+future+of+air+transportation&rft.au=Jim+Banke+for+NASA+Aeronautics+News&rft.aulast=Jim+Banke+for+NASA+Aeronautics+News&rft.aufirst=&rft.date=2017-01-15&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 - 2017-01-15 ER - TY - JOUR T1 - Sub-ice-shelf sediments record history of twentieth-century retreat of Pine Island Glacier AN - 1863566553; 2017-008903 JF - Nature (London) AU - Smith, J A AU - Andersen, T J AU - Shortt, M AU - Gaffney, A M AU - Stanton, T P AU - Bindschadler, R AU - Dutrieux, P AU - Jenkins, A AU - Hillenbrand, C D AU - Ehrmann, W AU - Corr, Hugh F J AU - Farley, N AU - Crowhurst, S AU - Vaughan, D G Y1 - 2017/01/05/ PY - 2017 DA - 2017 Jan 05 SP - 77 EP - 80 PB - Macmillan Journals, London VL - 541 IS - 7635 SN - 0028-0836, 0028-0836 KW - subglacial environment KW - Quaternary KW - glaciers KW - global change KW - Holocene KW - cores KW - Cenozoic KW - Antarctic ice sheet KW - sea-level changes KW - transgression KW - Antarctica KW - mass balance KW - West Antarctic ice sheet KW - sediments KW - thickness KW - reconstruction KW - Amundsen Sea KW - upper Holocene KW - Pine Island Glacier KW - global warming KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1863566553?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Sub-ice-shelf+sediments+record+history+of+twentieth-century+retreat+of+Pine+Island+Glacier&rft.au=Smith%2C+J+A%3BAndersen%2C+T+J%3BShortt%2C+M%3BGaffney%2C+A+M%3BStanton%2C+T+P%3BBindschadler%2C+R%3BDutrieux%2C+P%3BJenkins%2C+A%3BHillenbrand%2C+C+D%3BEhrmann%2C+W%3BCorr%2C+Hugh+F+J%3BFarley%2C+N%3BCrowhurst%2C+S%3BVaughan%2C+D+G&rft.aulast=Smith&rft.aufirst=J&rft.date=2017-01-05&rft.volume=541&rft.issue=7635&rft.spage=77&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2Fnature20136 L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2017-01-01 N1 - Number of references - 30 N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2017-02-02 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - Amundsen Sea; Antarctic ice sheet; Antarctica; Cenozoic; cores; glaciers; global change; global warming; Holocene; mass balance; Pine Island Glacier; Quaternary; reconstruction; sea-level changes; sediments; subglacial environment; thickness; transgression; upper Holocene; West Antarctic ice sheet DO - http://dx.doi.org/10.1038/nature20136 ER - TY - JOUR T1 - Implications of different digital elevation models and preprocessing techniques to delineate debris flow inundation hazard zones in El Salvador AN - 1861114073; 787476-11 JF - Geophysical Monograph AU - Anderson, Eric Ross AU - Griffin, Robert E AU - Irwin, Daniel E Y1 - 2017 PY - 2017 DA - 2017 SP - 167 EP - 177 PB - Wiley for American Geophysical Union, Washington, DC VL - 223 SN - 0065-8448, 0065-8448 KW - imagery KW - geologic hazards KW - spatial data KW - ArcGIS KW - digital terrain models KW - debris flows KW - topographic correction KW - simulation KW - spatial distribution KW - geographic information systems KW - errors KW - Earth Observing System KW - El Salvador KW - mass movements KW - San Vicente KW - ASTER instrument KW - zoning KW - uncertainty KW - LAHARZ KW - cartography KW - lahars KW - equations KW - ArcInfo KW - pixels KW - satellite methods KW - SRTM KW - natural hazards KW - volcanoes KW - risk assessment KW - information systems KW - Central America KW - accuracy KW - data preprocessing KW - remote sensing KW - 24:Quaternary geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861114073?accountid=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=Geophysical+Monograph&rft.atitle=Implications+of+different+digital+elevation+models+and+preprocessing+techniques+to+delineate+debris+flow+inundation+hazard+zones+in+El+Salvador&rft.au=Anderson%2C+Eric+Ross%3BGriffin%2C+Robert+E%3BIrwin%2C+Daniel+E&rft.aulast=Anderson&rft.aufirst=Eric&rft.date=2017-01-01&rft.volume=223&rft.issue=&rft.spage=167&rft.isbn=9781119027867&rft.btitle=&rft.title=Geophysical+Monograph&rft.issn=00658448&rft_id=info:doi/ L2 - http://agupubs.onlinelibrary.wiley.com/agu/books/geophysical-monograph-series.html LA - English DB - GeoRef N1 - Conference title - 2013 American Geophysical Union (AGU) fall meeting session N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 69 N1 - PubXState - DC N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2017-01-24 N1 - CODEN - GPMGAD N1 - SubjectsTermNotLitGenreText - accuracy; ArcGIS; ArcInfo; ASTER instrument; cartography; Central America; data preprocessing; debris flows; digital terrain models; Earth Observing System; El Salvador; equations; errors; geographic information systems; geologic hazards; imagery; information systems; lahars; LAHARZ; mass movements; natural hazards; pixels; remote sensing; risk assessment; San Vicente; satellite methods; simulation; spatial data; spatial distribution; SRTM; topographic correction; uncertainty; volcanoes; zoning ER - TY - JOUR T1 - Stratospheric balloon observations of comets C/2013 A1 (Siding Spring), C/2014 E2 (Jacques), and Ceres AN - 1861081054; 783948-31 AB - The Balloon Observation Platform for Planetary Science (BOPPS) was launched from Fort Sumner, New Mexico on September 26, 2014 and observed Oort Cloud comets from a stratospheric balloon observatory, using a 0.8 meter aperture telescope, a pointing system that achieved < 1 arc second pointing stability, and an imaging instrument suite covering the near-ultraviolet to mid-infrared. BOPPS observed two Oort Cloud comets, C/2013 A1 (Siding Spring) and C/2014 E2 (Jacques), at the 2.7 mu m wavelength of water emission. BOPPS also observed Ceres at 2.7 mu m wavelength to characterize the nature of hydrated materials on Ceres. Absolute flux calibrations were made using observations of A0V stars at nearly the same elevations as each target. The Comet Siding Spring brightness in R-band was magnitude R = 10.8 in a photometric aperture of 17.4". The inferred H (sub 2) O production rate from Comet Siding Spring was 6 X 10 (super 27) s (super -1) , assuming optically thin emissions, which may be a lower limit if optical depth effects are important. A superheat dust population was discovered at Comet Jacques, producing a bright infrared continuum without evidence for line emission. Observations of Ceres from BOPPS and from IRTF, obtained the same night, did not find evidence for a strong water vapor emission near 2.7 mu m and led to an approximate upper limit < 7 X 10 (super 27) s (super -1) for water emission from Ceres. JF - Icarus AU - Cheng, Andrew F AU - Hibbitts, C A AU - Espiritu, R AU - McMichael, R AU - Fletcher, Z AU - Bernasconi, P AU - Adams, J D AU - Lisse, C M AU - Sitko, M L AU - Fernandes, R AU - Young, E F AU - Kremic, T Y1 - 2017/01/01/ PY - 2017 DA - 2017 Jan 01 SP - 404 EP - 416 PB - Elsevier, New York, NY VL - 281 SN - 0019-1035, 0019-1035 KW - Siding Spring Comet KW - hydrates KW - Oort Cloud KW - imagery KW - Jacques Comet KW - Ceres KW - asteroids KW - telescope methods KW - water vapor KW - calibration KW - Balloon Observation Platform for Planetary Science KW - dwarf planets KW - infrared spectra KW - brightness KW - photometry KW - comets KW - stratosphere KW - spectra KW - BOPPS mission KW - balloon observations KW - optical depth KW - cometary dust KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861081054?accountid=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=Icarus&rft.atitle=Stratospheric+balloon+observations+of+comets+C%2F2013+A1+%28Siding+Spring%29%2C+C%2F2014+E2+%28Jacques%29%2C+and+Ceres&rft.au=Cheng%2C+Andrew+F%3BHibbitts%2C+C+A%3BEspiritu%2C+R%3BMcMichael%2C+R%3BFletcher%2C+Z%3BBernasconi%2C+P%3BAdams%2C+J+D%3BLisse%2C+C+M%3BSitko%2C+M+L%3BFernandes%2C+R%3BYoung%2C+E+F%3BKremic%2C+T&rft.aulast=Cheng&rft.aufirst=Andrew&rft.date=2017-01-01&rft.volume=281&rft.issue=&rft.spage=404&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.08.007 L2 - http://www.sciencedirect.com/science/journal/00191035 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 CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Number of references - 34 N1 - PubXState - NY N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2017-01-24 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - asteroids; Balloon Observation Platform for Planetary Science; balloon observations; BOPPS mission; brightness; calibration; Ceres; cometary dust; comets; dwarf planets; hydrates; imagery; infrared spectra; instruments; Jacques Comet; Oort Cloud; optical depth; photometry; Siding Spring Comet; spectra; stratosphere; telescope methods; water vapor DO - http://dx.doi.org/10.1016/j.icarus.2016.08.007 ER - TY - JOUR T1 - Terrestrial analogues for lunar impact melt flows AN - 1859792395; 2017-004587 AB - Lunar impact melt deposits have unique physical properties. They have among the highest observed radar returns at S-Band (12.6 cm wavelength), implying that they are rough at the decimeter scale. However, they are also observed in high-resolution optical imagery to be quite smooth at the meter scale. These characteristics distinguish them from well-studied terrestrial analogues, such as Hawaiian pahoehoe and 'a'a lava flows. The morphology of impact melt deposits can be related to their emplacement conditions, so understanding the origin of these unique surface properties will help to inform us as to the circumstances under which they were formed. In this work, we seek to find a terrestrial analogue for well-preserved lunar impact melt flows by examining fresh lava flows on Earth. We compare the radar return and high-resolution topographic variations of impact melt flows to terrestrial lava flows with a range of surface textures. The lava flows examined in this work range from smooth Hawaiian pahoehoe to transitional basaltic flows at Craters of the Moon (COTM) National Monument and Preserve in Idaho to rubbly and spiny pahoehoe-like flows at the recent eruption at Holuhraun in Iceland. The physical properties of lunar impact melt flows appear to differ from those of all the terrestrial lava flows studied in this work. This may be due to (a) differences in post-emplacement modification processes or (b) fundamental differences in the surface texture of the melt flows due to the melts' unique emplacement and/or cooling environment. Information about the surface properties of lunar impact melt deposits will be critical for future landed missions that wish to sample these materials. JF - Icarus AU - Neish, C D AU - Hamilton, C W AU - Hughes, S S AU - Nawotniak, S Kobs AU - Garry, W B AU - Skok, J R AU - Elphic, R C AU - Schaefer, E AU - Carter, L M AU - Bandfield, J L AU - Osinski, G R AU - Lim, D AU - Heldmann, J L Y1 - 2017/01/01/ PY - 2017 DA - 2017 Jan 01 SP - 73 EP - 89 PB - Elsevier, New York, NY VL - 281 SN - 0019-1035, 0019-1035 KW - United States KW - imagery KW - Hawaii Island KW - Lunar Reconnaissance Orbiter KW - Europe KW - digital terrain models KW - melts KW - impact melts KW - volcanism KW - pahoehoe KW - basalt flows KW - Kilauea KW - surface properties KW - Idaho KW - Western Europe KW - lava flows KW - Moon KW - Hawaii County Hawaii KW - roughness KW - Mauna Ulu KW - Holuhraun KW - surface textures KW - radar methods KW - Hawaii KW - East Pacific Ocean Islands KW - impacts KW - morphology KW - Craters of the Moon KW - physical properties KW - lava KW - natural analogs KW - Oceania KW - terrestrial comparison KW - Polynesia KW - aa lava KW - Iceland KW - 23:Geomorphology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859792395?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Terrestrial+analogues+for+lunar+impact+melt+flows&rft.au=Neish%2C+C+D%3BHamilton%2C+C+W%3BHughes%2C+S+S%3BNawotniak%2C+S+Kobs%3BGarry%2C+W+B%3BSkok%2C+J+R%3BElphic%2C+R+C%3BSchaefer%2C+E%3BCarter%2C+L+M%3BBandfield%2C+J+L%3BOsinski%2C+G+R%3BLim%2C+D%3BHeldmann%2C+J+L&rft.aulast=Neish&rft.aufirst=C&rft.date=2017-01-01&rft.volume=281&rft.issue=&rft.spage=73&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.08.008 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2017-01-01 N1 - Number of references - 73 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2017-01-19 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - aa lava; basalt flows; Craters of the Moon; digital terrain models; East Pacific Ocean Islands; Europe; Hawaii; Hawaii County Hawaii; Hawaii Island; Holuhraun; Iceland; Idaho; imagery; impact melts; impacts; Kilauea; lava; lava flows; Lunar Reconnaissance Orbiter; Mauna Ulu; melts; Moon; morphology; natural analogs; Oceania; pahoehoe; physical properties; Polynesia; radar methods; roughness; surface properties; surface textures; terrestrial comparison; United States; volcanism; Western Europe DO - http://dx.doi.org/10.1016/j.icarus.2016.08.008 ER - TY - JOUR T1 - Cassini microwave observations provide clues to the origin of Saturn's C ring AN - 1859792267; 2017-004602 AB - Despite considerable study, Saturn's rings continue to challenge current theories for their provenance. Water ice comprises the bulk of Saturn's rings, yet it is the small fraction of non-icy material that is arguably more valuable in revealing clues about the system's origin and age. Herein, we present new measurements of the non-icy material fraction in Saturn's C ring, determined from microwave radiometry observations acquired by the Cassini spacecraft. Our observations show an exceptionally high brightness at near-zero azimuthal angles, suggesting a high porosity of 70-75% for the C ring particles. Furthermore, our results show that most regions in the C ring contain about 1-2% silicates. These results are consistent with an initially nearly pure-ice ring system that has been continuously contaminated by in-falling micrometeoroids over approximately 15-90 million years, using the currently accepted value of the micrometeoroid flux at infinity of approximately 4.5 X 10 (super -17) g cm (super -2) s (super -1) , and assuming that the C ring optical depth and surface density has not changed significantly during that time. This absolute time scale is inversely proportional not only to the flux at infinity, but also to the amount of gravitational focusing by Saturn the micrometeoroids experience before encountering the rings. We also find an enhanced abundance of non-icy material concentrated in the middle C ring. When assumed to be mixed volumetrically ("intramixed") with water ice, this enhanced contamination reaches a maximum concentration of 6-11% silicates by volume around a ring radius of 83,000 km, depending on the volume mixing model used. This is significantly higher than the inner and outer C ring. As opposed to an intramixing model, we also consider a silicate-core, icy-mantle model to address the fact that silicates may be present in chunks instead of fine powder in the ring particles. Such a model naturally helps to account for the observed opacity distribution. We propose several models to explain the radially varied non-icy material contamination. Our preferred model is that the C ring has been continuously polluted by meteoroid bombardment since it first formed, while the middle C ring was further contaminated by an incoming Centaur, a rocky object torn apart by tides and ultimately broken into pieces that currently reside in the middle C ring. If correct, the spatial extent of the enhanced non-icy material fraction suggests that the Centaur was likely to be captured and integrated into the rings perhaps as recently as approximately 10-20 million years ago. JF - Icarus AU - Zhang, Z AU - Hayes, A G AU - Janssen, M A AU - Nicholson, P D AU - Cuzzi, J N AU - de Pater, Imke AU - Dunn, D E AU - Estrada, P R AU - Hedman, M M Y1 - 2017/01/01/ PY - 2017 DA - 2017 Jan 01 SP - 297 EP - 321 PB - Elsevier, New York, NY VL - 281 SN - 0019-1035, 0019-1035 KW - silicates KW - radar methods KW - mantle KW - porous materials KW - meteoroids KW - porosity KW - C ring KW - giant planets KW - models KW - microwave methods KW - brightness KW - Saturn KW - planets KW - planetary rings KW - Cassini-Huygens Mission KW - micrometeoroids KW - ice KW - core KW - outer planets KW - optical depth KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859792267?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Cassini+microwave+observations+provide+clues+to+the+origin+of+Saturn%27s+C+ring&rft.au=Zhang%2C+Z%3BHayes%2C+A+G%3BJanssen%2C+M+A%3BNicholson%2C+P+D%3BCuzzi%2C+J+N%3Bde+Pater%2C+Imke%3BDunn%2C+D+E%3BEstrada%2C+P+R%3BHedman%2C+M+M&rft.aulast=Zhang&rft.aufirst=Z&rft.date=2017-01-01&rft.volume=281&rft.issue=&rft.spage=297&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.07.020 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2017-01-01 N1 - Number of references - 92 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2017-01-19 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - brightness; C ring; Cassini-Huygens Mission; core; giant planets; ice; mantle; meteoroids; micrometeoroids; microwave methods; models; optical depth; outer planets; planetary rings; planets; porosity; porous materials; radar methods; Saturn; silicates DO - http://dx.doi.org/10.1016/j.icarus.2016.07.020 ER - TY - JOUR T1 - Environmental temperature effect on the far-infrared absorption features of aromatic-based Titan's aerosol analogs AN - 1859792261; 2017-004605 AB - Benzene detection has been reported in Titan's atmosphere both in the stratosphere at ppb levels by remote sensing (Coustenis et al., 2007; Vinatier et al., 2007) and in the thermosphere at ppm levels by the Cassini's Ion and Neutral Mass Spectrometer (Waite et al., 2007). This detection supports the idea that aromatic and heteroaromatic reaction pathways may play an important role in Titan's atmospheric chemistry, especially in the formation of aerosols. Indeed, aromatic molecules are easily dissociated by ultraviolet radiation and can therefore contribute significantly to aerosol formation. It has been shown recently that aerosol analogs produced from a gas mixture containing a low concentration of aromatic and/or heteroaromatic molecules (benzene, naphthalene, pyridine, quinoline and isoquinoline) have spectral signatures below 500 cm (super -1) , a first step towards reproducing the aerosol spectral features observed by Cassini's Composite InfraRed Spectrometer (CIRS) in the far infrared (Anderson and Samuelson 2011, and references therein). In this work we investigate the influence of environmental temperature on the absorption spectra of such aerosol samples, simulating the temperature range to which aerosols, once formed, are exposed during their transport through Titan's stratosphere. Our results show that environmental temperature does not have any major effect on the spectral shape of these aerosol analogs in the far-infrared, which is consistent with the CIRS observations. JF - Icarus AU - Gautier, Thomas AU - Trainer, Melissa G AU - Loeffler, Mark J AU - Sebree, Joshua A AU - Anderson, Carrie M Y1 - 2017/01/01/ PY - 2017 DA - 2017 Jan 01 SP - 338 EP - 341 PB - Elsevier, New York, NY VL - 281 SN - 0019-1035, 0019-1035 KW - tholins KW - icy satellites KW - dissociation KW - photochemistry KW - atmosphere KW - benzene KW - temperature KW - infrared spectra KW - absorption KW - organic compounds KW - far-infrared spectra KW - stratosphere KW - natural analogs KW - hydrocarbons KW - Titan Satellite KW - aerosols KW - spectra KW - satellites KW - aromatic hydrocarbons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859792261?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Environmental+temperature+effect+on+the+far-infrared+absorption+features+of+aromatic-based+Titan%27s+aerosol+analogs&rft.au=Gautier%2C+Thomas%3BTrainer%2C+Melissa+G%3BLoeffler%2C+Mark+J%3BSebree%2C+Joshua+A%3BAnderson%2C+Carrie+M&rft.aulast=Gautier&rft.aufirst=Thomas&rft.date=2017-01-01&rft.volume=281&rft.issue=&rft.spage=338&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.07.015 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2017-01-01 N1 - Number of references - 27 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2017-01-19 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - absorption; aerosols; aromatic hydrocarbons; atmosphere; benzene; dissociation; far-infrared spectra; hydrocarbons; icy satellites; infrared spectra; natural analogs; organic compounds; photochemistry; satellites; spectra; stratosphere; temperature; tholins; Titan Satellite DO - http://dx.doi.org/10.1016/j.icarus.2016.07.015 ER - TY - JOUR T1 - Seasonal variations of Mercury's magnesium dayside exosphere from MESSENGER observations AN - 1859792091; 2017-004586 AB - The Ultraviolet and Visible Spectrometer channel of the Mercury Atmospheric and Surface Composition Spectrometer instrument aboard the MErcury Surface, Space ENvironment, GEochemistry, and Ranging spacecraft made near-daily observations of solar-scattered resonant emission from magnesium in Mercury's exosphere during the mission's orbital phase (March 2011-April 2015, approximately 17 Mercury years). In this paper, a subset of these data (March 2013-April 2015) is described and analyzed to illustrate Mg's spatial and temporal variations. Dayside altitude profiles of emission are used to make estimates of the Mg density and temperature. The main characteristics of the Mg exosphere are (a) a predominant enhancement of emission in the morning (6 am-10 am) near perihelion, (b) a bulk temperature of approximately 6000 K, consistent with impact vaporization as the predominant ejection process, (c) a near-surface density that varies from 5 cm (super -3) to 50 cm (super -3) and (d) a production rate that is strongest in the morning on the inbound leg of Mercury's orbit with rates ranging from 1 X 10 (super 5) cm (super -2) s (super -1) to 8 X 10 (super 5) cm (super -2) s (super -1) . JF - Icarus AU - Merkel, Aimee W AU - Cassidy, Timothy A AU - Vervack, Ronald J, Jr AU - McClintock, William E AU - Sarantos, Menelaos AU - Burger, Matthew H AU - Killen, Rosemary M Y1 - 2017/01/01/ PY - 2017 DA - 2017 Jan 01 SP - 46 EP - 54 PB - Elsevier, New York, NY VL - 281 SN - 0019-1035, 0019-1035 KW - alkaline earth metals KW - magnesium KW - Mercury Atmospheric and Surface Composition Spectrometer KW - impacts KW - temperature KW - exosphere KW - terrestrial planets KW - brightness KW - volatilization KW - spatial distribution KW - planets KW - metals KW - Mercury Planet KW - ultraviolet spectra KW - temporal distribution KW - spectra KW - seasonal variations KW - orbital observations KW - diurnal variations KW - MESSENGER Mission KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859792091?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Seasonal+variations+of+Mercury%27s+magnesium+dayside+exosphere+from+MESSENGER+observations&rft.au=Merkel%2C+Aimee+W%3BCassidy%2C+Timothy+A%3BVervack%2C+Ronald+J%2C+Jr%3BMcClintock%2C+William+E%3BSarantos%2C+Menelaos%3BBurger%2C+Matthew+H%3BKillen%2C+Rosemary+M&rft.aulast=Merkel&rft.aufirst=Aimee&rft.date=2017-01-01&rft.volume=281&rft.issue=&rft.spage=46&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.08.032 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2017-01-01 N1 - Number of references - 29 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2017-01-19 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; brightness; diurnal variations; exosphere; impacts; magnesium; Mercury Atmospheric and Surface Composition Spectrometer; Mercury Planet; MESSENGER Mission; metals; orbital observations; planets; seasonal variations; spatial distribution; spectra; temperature; temporal distribution; terrestrial planets; ultraviolet spectra; volatilization DO - http://dx.doi.org/10.1016/j.icarus.2016.08.032 ER - TY - JOUR T1 - Chemistry of diagenetic features analyzed by ChemCam at Pahrump Hills, Gale Crater, Mars AN - 1859792066; 2017-004591 AB - The Curiosity rover's campaign at Pahrump Hills provides the first analyses of lower Mount Sharp strata. Here we report ChemCam elemental composition of a diverse assemblage of post-depositional features embedded in, or cross-cutting, the host rock. ChemCam results demonstrate their compositional diversity, especially compared to the surrounding host rock: (i) Dendritic aggregates and relief enhanced features, characterized by a magnesium enhancement and sulfur detection, and interpreted as Mg-sulfates; (ii) A localized observation that displays iron enrichment associated with sulfur, interpreted as Fe-sulfate; (iii) Dark raised ridges with varying Mg- and Ca-enriched compositions compared to host rock; (iv) Several dark-toned veins with calcium enhancement associated with fluorine detection, interpreted as fluorite veins. (v) Light-toned veins with enhanced calcium associated with sulfur detection, and interpreted as Ca-sulfates. The diversity of the Pahrump Hills diagenetic assemblage suggests a complex post-depositional history for fine-grained sediments for which the origin has been interpreted as fluvial and lacustrine. Assessment of the spatial and relative temporal distribution of these features shows that the Mg-sulfate features are predominant in the lower part of the section, suggesting local modification of the sediments by early diagenetic fluids. In contrast, light-toned Ca-sulfate veins occur in the whole section and cross-cut all other features. A relatively late stage shift in geochemical conditions could explain this observation. The Pahrump Hills diagenetic features have no equivalent compared to targets analyzed in other locations at Gale crater. Only the light-toned Ca-sulfate veins are present elsewhere, along Curiosity's path, suggesting they formed through a common late-stage process that occurred at over a broad area. JF - Icarus AU - Nachon, Marion AU - Mangold, Nicolas AU - Forni, Olivier AU - Kah, L C AU - Cousin, A AU - Wiens, R C AU - Anderson, R AU - Blaney, D AU - Blank, J G AU - Calef, F AU - Clegg, Samuel M AU - Fabre, C AU - Fisk, Martin R AU - Gasnault, O AU - Grotzinger, John P AU - Kronyak, R AU - Lanza, Nina L AU - Lasue, Jeremie AU - Le Deit, L AU - Le Mouelic, Stephane AU - Maurice, Sylvestre AU - Meslin, P Y AU - Oehler, D Z AU - Payre, V AU - Rapin, W AU - Schroeder, S AU - Stack, K AU - Sumner, D Y1 - 2017/01/01/ PY - 2017 DA - 2017 Jan 01 SP - 121 EP - 136 PB - Elsevier, New York, NY VL - 281 SN - 0019-1035, 0019-1035 KW - halides KW - calcium sulfate KW - calcium KW - magnesium KW - fluorides KW - Mars KW - iron KW - Gale Crater KW - spatial distribution KW - Curiosity Rover KW - chemical composition KW - fluorite KW - ChemCam instrument KW - alkaline earth metals KW - magnesium sulfates KW - sulfates KW - textures KW - veins KW - iron sulfates KW - Pahrump Hills KW - terrestrial planets KW - aqueous alteration KW - planets KW - metals KW - diagenesis KW - Mars Science Laboratory KW - sulfur KW - temporal distribution KW - Mount Sharp KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859792066?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Chemistry+of+diagenetic+features+analyzed+by+ChemCam+at+Pahrump+Hills%2C+Gale+Crater%2C+Mars&rft.au=Nachon%2C+Marion%3BMangold%2C+Nicolas%3BForni%2C+Olivier%3BKah%2C+L+C%3BCousin%2C+A%3BWiens%2C+R+C%3BAnderson%2C+R%3BBlaney%2C+D%3BBlank%2C+J+G%3BCalef%2C+F%3BClegg%2C+Samuel+M%3BFabre%2C+C%3BFisk%2C+Martin+R%3BGasnault%2C+O%3BGrotzinger%2C+John+P%3BKronyak%2C+R%3BLanza%2C+Nina+L%3BLasue%2C+Jeremie%3BLe+Deit%2C+L%3BLe+Mouelic%2C+Stephane%3BMaurice%2C+Sylvestre%3BMeslin%2C+P+Y%3BOehler%2C+D+Z%3BPayre%2C+V%3BRapin%2C+W%3BSchroeder%2C+S%3BStack%2C+K%3BSumner%2C+D&rft.aulast=Nachon&rft.aufirst=Marion&rft.date=2017-01-01&rft.volume=281&rft.issue=&rft.spage=121&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.08.026 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2017-01-01 N1 - Number of references - 50 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables, strat. col. N1 - Last updated - 2017-01-19 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; aqueous alteration; calcium; calcium sulfate; ChemCam instrument; chemical composition; Curiosity Rover; diagenesis; fluorides; fluorite; Gale Crater; halides; iron; iron sulfates; magnesium; magnesium sulfates; Mars; Mars Science Laboratory; metals; Mount Sharp; Pahrump Hills; planets; spatial distribution; sulfates; sulfur; temporal distribution; terrestrial planets; textures; veins DO - http://dx.doi.org/10.1016/j.icarus.2016.08.026 ER - TY - JOUR T1 - Solved; the enigma of labradorite feldspar with incommensurately modulated structure AN - 1859789592; 2017-006111 AB - Intermediate plagioclase feldspars are the most abundant minerals in the Earth's crust. Their incommensurately modulated structure has puzzled geologists and crystallographers for decades since the phenomenon in a labradorite was reported in 1940. Solving the structure is a necessary step toward mapping the complex subsolidus phase relations of plagioclase solid solution. The structure of a homogeneous labradorite (An (sub 51) ) single crystal from a metamorphic rock is solved and refined from single-crystal X-ray diffraction. The result structure can be simplified as alternating I1-like lamellae domains related by inversion twins. The inversion boundary shows an anorthite-like structure with I1 symmetry and is richer in Ca than the neighboring domains with opposite polarity. No albite-like subunits appear in the e-plagioclase structure. The modulated structure displays a unique Al-Si ordering pattern. A density modulation with a variation of 17 mol% in composition is also observed and can be properly described only by applying second-order harmonic waves for the atomic modulation functions. The modulated structure reveals details that cannot be observed from refinement with only main reflections and may be used to assess the ordering state and cooling rate of its host rock. The homogeneity of the crystal indicates the closure of the solvus for Boggild intergrowth at low temperature. The highly ordered modulation supports the thermodynamic stability of e-plagioclase. Both Al-Si ordering and Ca-Na ordering are the driving force for formation of the incommensurately modulated structure. JF - American Mineralogist AU - Jin, Shiyun AU - Xu, Huifang Y1 - 2017 PY - 2017 DA - 2017 SP - 21 EP - 32 PB - Mineralogical Society of America, Washington, DC VL - 102 IS - 1 SN - 0003-004X, 0003-004X KW - silicates KW - calcium KW - alkaline earth metals KW - plagioclase KW - refinement KW - X-ray diffraction data KW - alkali metals KW - crystal structure KW - labradorite KW - sodium KW - order-disorder KW - single-crystal method KW - metals KW - cations KW - framework silicates KW - thermodynamic properties KW - feldspar group KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859789592?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Solved%3B+the+enigma+of+labradorite+feldspar+with+incommensurately+modulated+structure&rft.au=Jin%2C+Shiyun%3BXu%2C+Huifang&rft.aulast=Jin&rft.aufirst=Shiyun&rft.date=2017-01-01&rft.volume=102&rft.issue=1&rft.spage=21&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam-2017-5807 L2 - http://www.minsocam.org/MSA/AmMin/TOC/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2017-01-01 N1 - Number of references - 59 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2017-01-19 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - alkali metals; alkaline earth metals; calcium; cations; crystal structure; feldspar group; framework silicates; labradorite; metals; order-disorder; plagioclase; refinement; silicates; single-crystal method; sodium; thermodynamic properties; X-ray diffraction data DO - http://dx.doi.org/10.2138/am-2017-5807 ER - TY - NEWS T1 - NASA X-57 simulator prepares pilots, engineers for flight of electric X-plane AN - 1846208520 JF - UPI Space Daily AU - Matt Kamlet for NASA Armstrong News Y1 - 2016/12/07/ PY - 2016 DA - 2016 Dec 07 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1846208520?accountid=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+X-57+simulator+prepares+pilots%2C+engineers+for+flight+of+electric+X-plane&rft.au=Matt+Kamlet+for+NASA+Armstrong+News&rft.aulast=Matt+Kamlet+for+NASA+Armstrong+News&rft.aufirst=&rft.date=2016-12-07&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 - 2016-12-07 ER - TY - JOUR T1 - The rapid formation of Sputnik Planitia early in Pluto's history AN - 1861108125; 787245-4 JF - Nature (London) AU - Hamilton, Douglas P AU - Stern, S A AU - Moore, J M AU - Young, L A Y1 - 2016/12/01/ PY - 2016 DA - 2016 Dec 01 SP - 97 EP - 99 PB - Macmillan Journals, London VL - 540 IS - 7631 SN - 0028-0836, 0028-0836 KW - albedo KW - solar system KW - obliquity of the ecliptic KW - Sputnik Planitia KW - dwarf planets KW - ice caps KW - genesis KW - paleoenvironment KW - surface features KW - Charon KW - planetary tides KW - interplanetary comparison KW - terrestrial comparison KW - Pluto KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861108125?accountid=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=Nature+%28London%29&rft.atitle=The+rapid+formation+of+Sputnik+Planitia+early+in+Pluto%27s+history&rft.au=Hamilton%2C+Douglas+P%3BStern%2C+S+A%3BMoore%2C+J+M%3BYoung%2C+L+A&rft.aulast=Hamilton&rft.aufirst=Douglas&rft.date=2016-12-01&rft.volume=540&rft.issue=7631&rft.spage=97&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2Fnature20586 L2 - http://www.nature.com/nature/index.html 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. N1 - Number of references - 31 N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - albedo; Charon; dwarf planets; genesis; ice caps; interplanetary comparison; obliquity of the ecliptic; paleoenvironment; planetary tides; Pluto; solar system; Sputnik Planitia; surface features; terrestrial comparison DO - http://dx.doi.org/10.1038/nature20586 ER - TY - JOUR T1 - Reorientation of Sputnik Planitia implies a subsurface ocean on Pluto AN - 1859792464; 2017-004871 JF - Nature (London) AU - Nimmo, Francis AU - Hamilton, Douglas P AU - McKinnon, W B AU - Schenk, P M AU - Binzel, R P AU - Bierson, C J AU - Beyer, R A AU - Moore, J M AU - Stern, S A AU - Weaver, H A AU - Olkin, C B AU - Young, L A AU - Smith, K E Y1 - 2016/12/01/ PY - 2016 DA - 2016 Dec 01 SP - 94 EP - 96 PB - Macmillan Journals, London VL - 540 IS - 7631 SN - 0028-0836, 0028-0836 KW - orientation KW - impact features KW - loading KW - Sputnik Planitia KW - dwarf planets KW - nitrogen KW - topography KW - deposition KW - thickness KW - planetology KW - interplanetary comparison KW - subsurface oceans KW - Pluto KW - ammonia compound KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859792464?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Reorientation+of+Sputnik+Planitia+implies+a+subsurface+ocean+on+Pluto&rft.au=Nimmo%2C+Francis%3BHamilton%2C+Douglas+P%3BMcKinnon%2C+W+B%3BSchenk%2C+P+M%3BBinzel%2C+R+P%3BBierson%2C+C+J%3BBeyer%2C+R+A%3BMoore%2C+J+M%3BStern%2C+S+A%3BWeaver%2C+H+A%3BOlkin%2C+C+B%3BYoung%2C+L+A%3BSmith%2C+K+E&rft.aulast=Nimmo&rft.aufirst=Francis&rft.date=2016-12-01&rft.volume=540&rft.issue=7631&rft.spage=94&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2Fnature20148 L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2017-01-01 N1 - Number of references - 30 N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2017-01-19 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - ammonia compound; deposition; dwarf planets; impact features; interplanetary comparison; loading; nitrogen; orientation; planetology; Pluto; Sputnik Planitia; subsurface oceans; thickness; topography DO - http://dx.doi.org/10.1038/nature20148 ER - TY - JOUR T1 - Acute pesticide ingestion managed with yohimbine as a rescue therapy AN - 1851144592 AB - Amitraz is used as a pesticide in agricultural and veterinary medicine. It is primarily a central α2 adrenergic agonist and known to cause central nervous system depression, convulsions, respiratory depression, and bradycardia on severe intoxication. We report a case of a 3-year-old child who presented with accidental ingestion of amitraz solution with signs of severe poisoning. There is no specific antidote of amitraz poisoning in humans, however, animal experiments with α2 adrenergic antagonists such as yohimbine and atimepazole have been successful. The child was managed besides intensive management with enteral yohimbine, and he regained consciousness in 18 h and was successfully weaned off mechanical ventilation. JF - Indian Journal of Critical Care Medicine AU - Nasa, Prashant AU - Juneja, Deven Y1 - 2016/12// PY - 2016 DA - Dec 2016 CY - Mumbai PB - Medknow Publications & Media Pvt. Ltd. VL - 20 IS - 12 SN - 09725229 KW - Medical Sciences KW - Conflicts of interest KW - Pesticides KW - Hyperglycemia KW - Poisoning KW - Consciousness KW - Intensive care UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1851144592?accountid=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=unknown&rft.jtitle=Indian+Journal+of+Critical+Care+Medicine&rft.atitle=Acute+pesticide+ingestion+managed+with+yohimbine+as+a+rescue+therapy&rft.au=Nasa%2C+Prashant%3BJuneja%2C+Deven&rft.aulast=Nasa&rft.aufirst=Prashant&rft.date=2016-12-01&rft.volume=20&rft.issue=12&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Indian+Journal+of+Critical+Care+Medicine&rft.issn=09725229&rft_id=info:doi/10.4103%2F0972-5229.195716 LA - English DB - ProQuest Central N1 - Copyright - Copyright Medknow Publications & Media Pvt Ltd Dec 2016 N1 - Last updated - 2016-12-22 DO - http://dx.doi.org/10.4103/0972-5229.195716 ER - TY - JOUR T1 - Water vapor changes under global warming and the linkage to present-day interannual variabilities in CMIP5 models AN - 1850774539; PQ0003938509 AB - The fractional water vapor changes under global warming across 14 Coupled Model Intercomparison Project Phase 5 simulations are analyzed. We show that the mean fractional water vapor changes under global warming in the tropical upper troposphere between 300 and 100 hPa range from 12.4 to 28.0 %/K across all models while the fractional water vapor changes are about 5-8 %/K in other regions and at lower altitudes. The "upper-tropospheric amplification" of the water vapor change is primarily driven by a larger temperature increase in the upper troposphere than in the lower troposphere per degree of surface warming. The relative contributions of atmospheric temperature and relative humidity changes to the water vapor change in each model vary between 71.5 to 131.8 % and 24.8 to -20.1 %, respectively. The inter-model differences in the water vapor change is primarily caused by differences in temperature change, except over the inter-tropical convergence zone within 10 degree S-10 degree N where the model differences due to the relative humidity change are significant. Furthermore, we find that there is generally a positive correlation between the rates of water vapor change for long-tem surface warming and those on the interannual time scales. However, the rates of water vapor change under long-term warming have a systematic offset from those on the inter-annual time scales and the dominant contributor to the differences also differs for the two time scales, suggesting caution needs to be taken when inferring long-term water vapor changes from the observed interannual variations. JF - Climate Dynamics AU - Takahashi, Hanii AU - Su, Hui AU - Jiang, Jonathan H AD - Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA, Hanii.Takahashi@jpl.nasa.gov Y1 - 2016/12// PY - 2016 DA - December 2016 SP - 3673 EP - 3691 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 47 IS - 12 SN - 0930-7575, 0930-7575 KW - Sustainability Science Abstracts; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Relative humidity KW - Convergence zones KW - Water Vapor KW - Variability KW - Simulation Analysis KW - Climates KW - Climate change KW - Climate KW - Temperature KW - Troposphere KW - Greenhouse effect KW - Systematics KW - Global Warming KW - Relative Humidity KW - Altitude KW - Modelling KW - O 2090:Instruments/Methods KW - SW 0810:General KW - Q2 09244:Air-sea coupling UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1850774539?accountid=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=Water+vapor+changes+under+global+warming+and+the+linkage+to+present-day+interannual+variabilities+in+CMIP5+models&rft.au=Takahashi%2C+Hanii%3BSu%2C+Hui%3BJiang%2C+Jonathan+H&rft.aulast=Takahashi&rft.aufirst=Hanii&rft.date=2016-12-01&rft.volume=47&rft.issue=12&rft.spage=3673&rft.isbn=&rft.btitle=&rft.title=Climate+Dynamics&rft.issn=09307575&rft_id=info:doi/10.1007%2Fs00382-016-3035-5 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-12-01 N1 - Number of references - 25 N1 - Last updated - 2017-01-18 N1 - SubjectsTermNotLitGenreText - Convergence zones; Relative humidity; Climate; Climate change; Troposphere; Greenhouse effect; Modelling; Variability; Altitude; Water Vapor; Simulation Analysis; Climates; Temperature; Systematics; Global Warming; Relative Humidity DO - http://dx.doi.org/10.1007/s00382-016-3035-5 ER - TY - JOUR T1 - Downscaling GISS ModelE boreal summer climate over Africa AN - 1850772398; PQ0003927507 AB - The study examines the perceived added value of downscaling atmosphere-ocean global climate model simulations over Africa and adjacent oceans by a nested regional climate model. NASA/Goddard Institute for Space Studies (GISS) coupled ModelE simulations for June-September 1998-2002 are used to form lateral boundary conditions for synchronous simulations by the GISS RM3 regional climate model. The ModelE computational grid spacing is 2 degree latitude by 2.5 degree longitude and the RM3 grid spacing is 0.44 degree . ModelE precipitation climatology for June-September 1998-2002 is shown to be a good proxy for 30-year means so results based on the 5-year sample are presumed to be generally representative. Comparison with observational evidence shows several discrepancies in ModelE configuration of the boreal summer inter-tropical convergence zone (ITCZ). One glaring shortcoming is that ModelE simulations do not advance the West African rain band northward during the summer to represent monsoon precipitation onset over the Sahel. Results for 1998-2002 show that onset simulation is an important added value produced by downscaling with RM3. ModelE Eastern South Atlantic Ocean computed sea-surface temperatures (SST) are some 4 K warmer than reanalysis, contributing to large positive biases in overlying surface air temperatures (Tsfc). ModelE Tsfc are also too warm over most of Africa. RM3 downscaling somewhat mitigates the magnitude of Tsfc biases over the African continent, it eliminates the ModelE double ITCZ over the Atlantic and it produces more realistic orographic precipitation maxima. Parallel ModelE and RM3 simulations with observed SST forcing (in place of the predicted ocean) lower Tsfc errors but have mixed impacts on circulation and precipitation biases. Downscaling improvements of the meridional movement of the rain band over West Africa and the configuration of orographic precipitation maxima are realized irrespective of the SST biases. JF - Climate Dynamics AU - Druyan, Leonard M AU - Fulakeza, Matthew AD - NASA/Goddard Institute for Space Studies, 2880 Broadway, New York, NY, 10025, USA, leonard.druyan@columbia.edu Y1 - 2016/12// PY - 2016 DA - December 2016 SP - 3499 EP - 3515 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 47 IS - 11 SN - 0930-7575, 0930-7575 KW - Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Convergence zones KW - Summer climate KW - Boundary conditions KW - Air temperature KW - Precipitation climatology KW - Monsoon precipitation KW - Ocean-atmosphere system KW - Regional climate models KW - Climatology KW - Sea surface temperatures KW - Modelling KW - Atmospheric precipitations KW - Marine KW - Climate models KW - Air Temperature KW - Simulation Analysis KW - Boundary Conditions KW - Climates KW - Climate KW - Ocean circulation KW - Simulation KW - AS, South Atlantic KW - Precipitation KW - Orographic precipitation KW - A, Atlantic KW - Global climate KW - ASE, Africa KW - Numerical simulations KW - Orographic Precipitation KW - Oceans KW - Africa KW - Rain KW - Monsoons KW - Q2 09102:Institutes and organizations KW - SW 0810:General KW - M2 551.581:Latitudinal Influences (551.581) KW - O 4080:Pollution - Control and Prevention UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1850772398?accountid=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=Climate+Dynamics&rft.atitle=Downscaling+GISS+ModelE+boreal+summer+climate+over+Africa&rft.au=Druyan%2C+Leonard+M%3BFulakeza%2C+Matthew&rft.aulast=Druyan&rft.aufirst=Leonard&rft.date=2016-12-01&rft.volume=47&rft.issue=11&rft.spage=3499&rft.isbn=&rft.btitle=&rft.title=Climate+Dynamics&rft.issn=09307575&rft_id=info:doi/10.1007%2Fs00382-015-2880-y LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-12-01 N1 - Number of references - 26 N1 - Last updated - 2016-12-21 N1 - SubjectsTermNotLitGenreText - Atmospheric precipitations; Climate; Ocean-atmosphere system; Simulation; Ocean circulation; Climatology; Air temperature; Monsoons; Modelling; Convergence zones; Global climate; Precipitation climatology; Climate models; Numerical simulations; Monsoon precipitation; Summer climate; Regional climate models; Precipitation; Sea surface temperatures; Boundary conditions; Orographic precipitation; Air Temperature; Boundary Conditions; Orographic Precipitation; Simulation Analysis; Oceans; Climates; Rain; ASE, Africa; Africa; AS, South Atlantic; A, Atlantic; Marine DO - http://dx.doi.org/10.1007/s00382-015-2880-y ER - TY - JOUR T1 - Climate cycling on early Mars caused by the carbonate-silicate cycle AN - 1849309968; 2016-106705 AB - For decades, scientists have tried to explain the evidence for fluvial activity on early Mars, but a consensus has yet to emerge regarding the mechanism for producing it. One hypothesis suggests early Mars was warmed by a thick greenhouse atmosphere. Another suggests that early Mars was generally cold but was warmed occasionally by impacts or by episodes of enhanced volcanism. These latter hypotheses struggle to produce the amounts of rainfall needed to form the martian valleys, but are consistent with inferred low rates of weathering compared to Earth. Here, we provide a geophysical mechanism that could have induced cycles of glaciation and deglaciation on early Mars. Our model produces dramatic climate cycles with extended periods of glaciation punctuated by warm periods lasting up to 10 Myr-much longer than those generated in other episodic warming models. The cycles occur because stellar insolation was low, and because CO (sub 2) outgassing is not able to keep pace with CO (sub 2) consumption by silicate weathering followed by deposition of carbonates. While CO (sub 2) by itself is not able to deglaciate early Mars in our model, we assume that the greenhouse effect is enhanced by substantial amounts of H (sub 2) outgassed from Mars' reduced crust and mantle. Our hypothesis can be tested by future Mars exploration that better establishes the time scale for valley formation. JF - Earth and Planetary Science Letters AU - Batalha, Natasha E AU - Kopparapu, Ravi Kumar AU - Haqq-Misra, Jacob AU - Kasting, James F Y1 - 2016/12/01/ PY - 2016 DA - 2016 Dec 01 SP - 7 EP - 13 PB - Elsevier, Amsterdam VL - 455 SN - 0012-821X, 0012-821X KW - silicates KW - albedo KW - obliquity of the ecliptic KW - glaciation KW - one-dimensional models KW - mantle KW - Mars KW - erosion rates KW - paleoclimatology KW - energy balance KW - deglaciation KW - carbon dioxide KW - volcanism KW - ice KW - greenhouse effect KW - degassing KW - valleys KW - rainfall KW - cyclic processes KW - atmosphere KW - terrestrial planets KW - models KW - planets KW - deposition KW - partial pressure KW - hydrogen KW - fluvial features KW - greenhouse gases KW - weathering rates KW - carbonates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849309968?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Climate+cycling+on+early+Mars+caused+by+the+carbonate-silicate+cycle&rft.au=Batalha%2C+Natasha+E%3BKopparapu%2C+Ravi+Kumar%3BHaqq-Misra%2C+Jacob%3BKasting%2C+James+F&rft.aulast=Batalha&rft.aufirst=Natasha&rft.date=2016-12-01&rft.volume=455&rft.issue=&rft.spage=7&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2016.08.044 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 55 N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Includes appendix N1 - Last updated - 2016-12-16 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - albedo; atmosphere; carbon dioxide; carbonates; cyclic processes; degassing; deglaciation; deposition; energy balance; erosion rates; fluvial features; glaciation; greenhouse effect; greenhouse gases; hydrogen; ice; mantle; Mars; models; obliquity of the ecliptic; one-dimensional models; paleoclimatology; partial pressure; planets; rainfall; silicates; terrestrial planets; valleys; volcanism; weathering rates DO - http://dx.doi.org/10.1016/j.epsl.2016.08.044 ER - TY - JOUR T1 - Consistent Estimates of Tsunami Energy Show Promise for Improved Early Warning AN - 1846419336; PQ0003893386 AB - Early tsunami warning critically hinges on rapid determination of the tsunami hazard potential in real-time, before waves inundate critical coastlines. Tsunami energy can quickly characterize the destructive potential of generated waves. Traditional seismic analysis is inadequate to accurately predict a tsunami's energy. Recently, two independent approaches have been proposed to determine tsunami source energy: one inverted from the Deep-ocean Assessment and Reporting of Tsunamis (DART) data during the tsunami propagation, and the other derived from the land-based coastal global positioning system (GPS) during tsunami generation. Here, we focus on assessing these two approaches with data from the March 11, 2011 Japanese tsunami. While the GPS approach takes into consideration the dynamic earthquake process, the DART inversion approach provides the actual tsunami energy estimation of the propagating tsunami waves; both approaches lead to consistent energy scales for previously studied tsunamis. Encouraged by these promising results, we examined a real-time approach to determine tsunami source energy by combining these two methods: first, determine the tsunami source from the globally expanding GPS network immediately after an earthquake for near-field early warnings; and then to refine the tsunami energy estimate from nearby DART measurements for improving forecast accuracy and early cancelations. The combination of these two real-time networks may offer an appealing opportunity for: early determination of the tsunami threat for the purpose of saving more lives, and early cancelation of tsunami warnings to avoid unnecessary false alarms. JF - Pure and Applied Geophysics AU - Titov, V AU - Song, YTony AU - Tang, L AU - Bernard, EN AU - Bar-Sever, Y AU - Wei, Y AD - NOAA Center for Tsunami Research, Pacific Marine Environmental Laboratory, National Oceanic and Atmospheric Administration, 7600 Sand Point Way NE, Seattle, WA, 98115, USA, tony.song@jpl.nasa.gov Y1 - 2016/12// PY - 2016 DA - December 2016 SP - 3863 EP - 3880 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 173 IS - 12 SN - 0033-4553, 0033-4553 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Earthquakes KW - INW, Japan KW - Positioning systems KW - Tsunami hazard KW - Tsunami generation KW - Hazards KW - Waves KW - Tsunamis KW - Geophysics KW - Coasts KW - Tsunami sources KW - Global Positioning System (GPS) satellite KW - Wave propagation KW - Forecast accuracy KW - Inversions KW - Tsunami propagation KW - Energy KW - Wave generation KW - Q2 09267:Gravity and geodesy KW - SW 0810:General KW - M2 551.466:Ocean Waves and Tides (551.466) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1846419336?accountid=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=Pure+and+Applied+Geophysics&rft.atitle=Consistent+Estimates+of+Tsunami+Energy+Show+Promise+for+Improved+Early+Warning&rft.au=Titov%2C+V%3BSong%2C+YTony%3BTang%2C+L%3BBernard%2C+EN%3BBar-Sever%2C+Y%3BWei%2C+Y&rft.aulast=Titov&rft.aufirst=V&rft.date=2016-12-01&rft.volume=173&rft.issue=12&rft.spage=3863&rft.isbn=&rft.btitle=&rft.title=Pure+and+Applied+Geophysics&rft.issn=00334553&rft_id=info:doi/10.1007%2Fs00024-016-1312-1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-12-01 N1 - Number of references - 53 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Earthquakes; Positioning systems; Tsunami generation; Geophysics; Tsunamis; Wave generation; Wave propagation; Inversions; Coasts; Tsunami propagation; Tsunami sources; Tsunami hazard; Global Positioning System (GPS) satellite; Forecast accuracy; Hazards; Energy; Waves; INW, Japan DO - http://dx.doi.org/10.1007/s00024-016-1312-1 ER - TY - JOUR T1 - Application of the ATP assay to rapidly assess cleanliness of spacecraft surfaces: a path to set a standard for future missions AN - 1846414735; PQ0003886281 AB - The National Aeronautics and Space Administration (NASA) measures and validates the biological cleanliness of spacecraft surfaces by counting endospores using the NASA standard assay (NSA). NASA has also approved an adenosine-5'-triphosphate (ATP)-based detection methodology as a means to prescreen surfaces for the presence of microbial contamination, prior to the spore assay. During Mars Science Laboratory (MSL) spacecraft assembly, test, and launch operations, 4853 surface samples were collected to verify compliance with the bioburden requirement at launch. A subset of these samples was measured for microbial cleanliness using both the NSA (n = 272) and ATP assay (n = 249). NSA results revealed that ~8% (22/272) of the samples showed the presence of at least one spore, whereas ATP assay measurements indicated that ~15% (35/249) of samples exceeded the "threshold cleanliness limit" of 2.3 10 super(-11) mmol ATP per 25 cm super(2) used by MSL. Of the 22 NSA samples with a spore, 18% (4/22) were considered above the level of acceptance by both techniques. Based on post launch data analysis presented here, it was determined that this threshold cleanliness limit of 2.3 10 super(-11) mmol ATP per 25 cm super(2) could be adopted as a benchmark for assessing spacecraft surface cleanliness. This study clearly demonstrates the value of using alternative methods to rapidly assess spacecraft cleanliness, and provides useful information regarding the process. JF - AMB Express AU - Benardini, James N AU - Venkateswaran, Kasthuri AD - Biotechnology and Planetary Protection Group, Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., M/S 89-2, Pasadena, CA, 91109, USA, kjvenkat@jpl.nasa.gov Y1 - 2016/12// PY - 2016 DA - December 2016 SP - 1 EP - 8 PB - Springer Science & Business Media, Berlin/Heidelberg VL - 6 IS - 1 KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Data processing KW - Contamination KW - Information processing KW - ATP KW - Enumeration KW - Spacecraft KW - Spores KW - A 01300:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1846414735?accountid=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=AMB+Express&rft.atitle=Application+of+the+ATP+assay+to+rapidly+assess+cleanliness+of+spacecraft+surfaces%3A+a+path+to+set+a+standard+for+future+missions&rft.au=Benardini%2C+James+N%3BVenkateswaran%2C+Kasthuri&rft.aulast=Benardini&rft.aufirst=James&rft.date=2016-12-01&rft.volume=6&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=AMB+Express&rft.issn=2191-0855&rft_id=info:doi/10.1186%2Fs13568-016-0286-9 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-12-01 N1 - Number of references - 19 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Data processing; Contamination; Information processing; ATP; Enumeration; Spores; Spacecraft DO - http://dx.doi.org/10.1186/s13568-016-0286-9 ER - TY - JOUR T1 - The Organ Preservation Alliance: Accelerating research to enable breakthroughs in organ cryopreservation AN - 1846404882; PQ0003890269 JF - Cryobiology AU - Weegman, B AU - Lewis, J AD - Organ Preservation Alliance, NASA Research Park, Moffett Field, California, United States Y1 - 2016/12// PY - 2016 DA - December 2016 SP - 442 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 73 IS - 3 SN - 0011-2240, 0011-2240 KW - Biotechnology and Bioengineering Abstracts UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1846404882?accountid=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=Cryobiology&rft.atitle=The+Organ+Preservation+Alliance%3A+Accelerating+research+to+enable+breakthroughs+in+organ+cryopreservation&rft.au=Weegman%2C+B%3BLewis%2C+J&rft.aulast=Weegman&rft.aufirst=B&rft.date=2016-12-01&rft.volume=73&rft.issue=3&rft.spage=442&rft.isbn=&rft.btitle=&rft.title=Cryobiology&rft.issn=00112240&rft_id=info:doi/10.1016%2Fj.cryobiol.2016.09.165 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-12-01 N1 - Last updated - 2016-12-07 DO - http://dx.doi.org/10.1016/j.cryobiol.2016.09.165 ER - TY - JOUR T1 - Return to normal life after hematopoietic stem cell transplantation for thalassemia: a study of patients transplanted from matched sibling donors AN - 1846300020 JF - Bone Marrow Transplantation AU - Caocci, G AU - Vacca, A AU - Piras, E AU - Serreli, V AU - Dessi, C AU - Marcias, M AU - Risso, P AU - La Nasa, G Y1 - 2016/12// PY - 2016 DA - Dec 2016 SP - 1640 EP - 1641 CY - London PB - Nature Publishing Group VL - 51 IS - 12 SN - 02683369 KW - Medical Sciences--Experimental Medicine, Laboratory Technique UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1846300020?accountid=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=Bone+Marrow+Transplantation&rft.atitle=Return+to+normal+life+after+hematopoietic+stem+cell+transplantation+for+thalassemia%3A+a+study+of+patients+transplanted+from+matched+sibling+donors&rft.au=Caocci%2C+G%3BVacca%2C+A%3BPiras%2C+E%3BSerreli%2C+V%3BDessi%2C+C%3BMarcias%2C+M%3BRisso%2C+P%3BLa+Nasa%2C+G&rft.aulast=Caocci&rft.aufirst=G&rft.date=2016-12-01&rft.volume=51&rft.issue=12&rft.spage=1640&rft.isbn=&rft.btitle=&rft.title=Bone+Marrow+Transplantation&rft.issn=02683369&rft_id=info:doi/10.1038%2Fbmt.2016.243 LA - English DB - ProQuest Central N1 - Copyright - Copyright Nature Publishing Group Dec 2016 N1 - Last updated - 2016-12-07 DO - http://dx.doi.org/10.1038/bmt.2016.243 ER - TY - JOUR T1 - Aerosol optical depth as observed by the Mars Science Laboratory REMS UV photodiodes AN - 1828845114; 2016-088182 AB - Systematic observations taken by the REMS UV photodiodes on a daily basis throughout the landed Mars Science Laboratory mission provide a highly useful tool for characterizing aerosols above Gale Crater. Radiative transfer modeling is used to model the approximately 1.75 Mars Years of observations taken to date taking into account multiple scattering from aerosols and the extended field of view of the REMS UV photodiodes. The retrievals show in detail the annual cycle of aerosol optical depth, which is punctuated with numerous short timescale events of increased optical depth. Dust deposition onto the photodiodes is accounted for by comparison with aerosol optical depth derived from direct imaging of the Sun by Mastcam. The effect of dust on the photodiodes is noticeable, but does not dominate the signal. Cleaning of dust from the photodiodes was observed in the season around L (sub s) =270 degrees , but not during other seasons. Systematic deviations in the residuals from the retrieval fit are indicative of changes in aerosol effective particle size, with larger particles present during periods of increased optical depth. This seasonal dependence of aerosol particle size is expected as dust activity injects larger particles into the air, while larger aerosols settle out of the atmosphere more quickly leading to a smaller average particle size over time. JF - Icarus AU - Smith, Michael D AU - Zorzano, Maria-Paz AU - Lemmon, Mark AU - Martin-Torres, Javier AU - Mendaza de Cal, Teresa Y1 - 2016/12// PY - 2016 DA - December 2016 SP - 234 EP - 248 PB - Elsevier, New York, NY VL - 280 SN - 0019-1035, 0019-1035 KW - settling KW - radiative transfer model KW - photodiodes KW - clastic sediments KW - atmosphere KW - Mars KW - ultraviolet radiation KW - size KW - Gale Crater KW - terrestrial planets KW - planets KW - Rover Environmental Monitoring Station KW - electromagnetic radiation KW - dust KW - sediments KW - Mars Science Laboratory KW - aerosols KW - seasonal variations KW - algorithms KW - optical depth KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828845114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Aerosol+optical+depth+as+observed+by+the+Mars+Science+Laboratory+REMS+UV+photodiodes&rft.au=Smith%2C+Michael+D%3BZorzano%2C+Maria-Paz%3BLemmon%2C+Mark%3BMartin-Torres%2C+Javier%3BMendaza+de+Cal%2C+Teresa&rft.aulast=Smith&rft.aufirst=Michael&rft.date=2016-12-01&rft.volume=280&rft.issue=&rft.spage=234&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.07.012 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 59 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2016-10-25 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - aerosols; algorithms; atmosphere; clastic sediments; dust; electromagnetic radiation; Gale Crater; Mars; Mars Science Laboratory; optical depth; particles; photodiodes; planets; radiative transfer model; Rover Environmental Monitoring Station; seasonal variations; sediments; settling; size; terrestrial planets; ultraviolet radiation DO - http://dx.doi.org/10.1016/j.icarus.2016.07.012 ER - TY - JOUR T1 - The degradational history of Endeavour Crater, Mars AN - 1828845089; 2016-088198 AB - Endeavour crater (2.28 degrees S, 354.77 degrees E) is a Noachian-aged 22 km-diameter impact structure of complex morphology in southern Meridiani Planum. The degradation state of the crater has been studied using orbital data from the Mars Reconnaissance Orbiter and in situ data from the Opportunity rover. Multiple exposed crater rim segments range in elevation from approximately 10 m to over 100 m above the level of the embaying Burns Formation. The crater is 200-500 m deep and the interior wall exposes over approximately 300 m of relief around the southern half of the crater. Slopes of 6-16% flank the exterior of the largest western rim segment. On the west side of the crater, both pre-impact rocks (Matijevic Formation) and Endeavour impact ejecta (Shoemaker Formation) are present at Cape York, but only the Shoemaker Formation (up to approximately 140 m section) outcrops at Cape Tribulation. Study of similar sized pristine craters Bopolu and Tooting (with complex morphology) and use of metrics for describing the morphometry of martian craters suggest the original rim of Endeavour averaged 410 m in elevation, but relief varied about + or -200 m around the circumference. A 250-275 m section of ejecta (+ or -50-60 m) would have comprised a significant fraction of the rim height. The original crater was likely 1.5-2.2 km deep and may have had a central peak (no obvious evidence is present) between 200 and 500 m high. Comparison between the predicted original and current form of Endeavour suggests 100-200 m of rim degradation ranging from nearly complete ejecta removal in some locations to preservation of a thick ejecta section in others. Differences in rim relief are at least partially due to degradation and not just original rim relief and (or) due to offsets along rim faults. Most degradation occurred prior to deposition of the Burns Formation which is approximately 200 m thick outside the crater, but likely thicker inside the crater. Aeolian stripping of the Burns Formation continues today via prevailing winds and lesser mass wasting is important on steeper walls. However, analogy with degraded Noachian craters south of Meridiani suggests fluvial processes were most important in early degradation and is consistent with the nearly complete removal of ejecta from some rim segments, gaps in the rim, formation of Marathon Valley, and interpretation of a pediment flanking the western rim. Slope processes likely accompanied incision that may have accounted for tens of metres rim lowering near Marathon Valley to more than 100 m at Cape York. JF - Icarus AU - Grant, J A AU - Parker, T J AU - Crumpler, L S AU - Wilson, S A AU - Golombek, M P AU - Mittlefehldt, D W Y1 - 2016/12// PY - 2016 DA - December 2016 SP - 22 EP - 36 PB - Elsevier, New York, NY VL - 280 SN - 0019-1035, 0019-1035 KW - Shoemaker Formation KW - pediments KW - degradation KW - Noachian KW - impact features KW - erosion KW - Mars KW - erosion features KW - Context Camera KW - relief KW - Mars Exploration Rover KW - dimensions KW - HiRISE KW - Burns Formation KW - Opportunity Rover KW - Tooting Crater KW - morphometry KW - Mars Reconnaissance Orbiter KW - ring structures KW - ejecta KW - Cape Tribulation KW - Cape York KW - terrestrial planets KW - morphology KW - planets KW - complex craters KW - impact craters KW - Bopolu Crater KW - Matijevic Formation KW - preservation KW - Marathon Valley KW - Endeavour Crater KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828845089?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+degradational+history+of+Endeavour+Crater%2C+Mars&rft.au=Grant%2C+J+A%3BParker%2C+T+J%3BCrumpler%2C+L+S%3BWilson%2C+S+A%3BGolombek%2C+M+P%3BMittlefehldt%2C+D+W&rft.aulast=Grant&rft.aufirst=J&rft.date=2016-12-01&rft.volume=280&rft.issue=&rft.spage=22&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.08.019 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 60 N1 - PubXState - NY N1 - Document feature - illus. incl. 5 tables, sketch maps N1 - Last updated - 2016-10-25 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - Bopolu Crater; Burns Formation; Cape Tribulation; Cape York; complex craters; Context Camera; degradation; dimensions; ejecta; Endeavour Crater; erosion; erosion features; HiRISE; impact craters; impact features; Marathon Valley; Mars; Mars Exploration Rover; Mars Reconnaissance Orbiter; Matijevic Formation; morphology; morphometry; Noachian; Opportunity Rover; pediments; planets; preservation; relief; ring structures; Shoemaker Formation; terrestrial planets; Tooting Crater DO - http://dx.doi.org/10.1016/j.icarus.2015.08.019 ER - TY - JOUR T1 - Characteristics of pebble and cobble-sized clasts along the Curiosity Rover traverse from sol 100 to 750; terrain types, potential sources, and transport mechanisms AN - 1828845073; 2016-088200 AB - We combine the results of orbitally-derived morphologic and thermal inertia data with in situ observations of abundance, size, morphologic characteristics, and distribution of pebble- to cobble-sized clasts along the Curiosity rover traverse. Our goals are to characterize rock sources and transport history, and improve our ability to predict upcoming terrain. There are ten clast types, with nine types interpreted as sedimentary rocks. Only Type 3 clasts had morphologies indicative of significant wear through transport; thus, most clast types are indicative of nearby outcrops or prior presence of laterally extensive sedimentary rock layers, consistent with the erosional landscape. A minor component may reflect impact delivery of more distant material. Types 1 and 4 are heavily-cemented sandstones, likely associated with a "caprock" layer. Types 5 and 6 (and possibly 7) are pebble-rich sandstones, with varying amounts of cement leading to varying susceptibility to erosion/wear. Type 3 clasts are rounded pebbles likely transported and deposited alluvially, then worn out of pebbly sandstone/conglomerate. Types 9 and 10 are poorly-sorted sandstones, with Type 9 representing fragments of Square Top-type layers, and Type 10 deriving from basal or other Mt. Sharp layers. Types 2, 8 and 9 are considered exotics.There are few clear links between clast type and terrain surface roughness (particularly in identifying terrain that is challenging for the rover to navigate). Orbital data may provide a reasonable prediction of certain end-member terrains but the complex interplay between variables that contribute to surface characteristics makes discriminating between terrain types from orbital data problematic. Prediction would likely be improved through higher-resolution thermal inertia data. JF - Icarus AU - Yingst, R A AU - Cropper, K AU - Gupta, S AU - Kah, L C AU - Williams, R M E AU - Blank, Jennifer G AU - Calef, F, III AU - Hamilton, V E AU - Lewis, K W AU - Shechet, J AU - McBride, Marie Julia AU - Bridges, Nathan T AU - Frias, J Martinez AU - Newsom, H Y1 - 2016/12// PY - 2016 DA - December 2016 SP - 72 EP - 92 PB - Elsevier, New York, NY VL - 280 SN - 0019-1035, 0019-1035 KW - thermal inertia KW - geotraverses KW - sandstone KW - rounding KW - pebbles KW - Mars KW - Gale Crater KW - sedimentary rocks KW - transport KW - Curiosity Rover KW - sediments KW - sorting KW - orbital observations KW - cement KW - THEMIS KW - clastic sediments KW - roughness KW - clasts KW - conglomerate KW - size KW - terrestrial planets KW - morphology KW - cobbles KW - planets KW - terrains KW - Mars Science Laboratory KW - fluvial features KW - Mount Sharp KW - clastic rocks KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828845073?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Characteristics+of+pebble+and+cobble-sized+clasts+along+the+Curiosity+Rover+traverse+from+sol+100+to+750%3B+terrain+types%2C+potential+sources%2C+and+transport+mechanisms&rft.au=Yingst%2C+R+A%3BCropper%2C+K%3BGupta%2C+S%3BKah%2C+L+C%3BWilliams%2C+R+M+E%3BBlank%2C+Jennifer+G%3BCalef%2C+F%2C+III%3BHamilton%2C+V+E%3BLewis%2C+K+W%3BShechet%2C+J%3BMcBride%2C+Marie+Julia%3BBridges%2C+Nathan+T%3BFrias%2C+J+Martinez%3BNewsom%2C+H&rft.aulast=Yingst&rft.aufirst=R&rft.date=2016-12-01&rft.volume=280&rft.issue=&rft.spage=72&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.03.001 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 63 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2016-10-25 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - cement; clastic rocks; clastic sediments; clasts; cobbles; conglomerate; Curiosity Rover; fluvial features; Gale Crater; geotraverses; Mars; Mars Science Laboratory; morphology; Mount Sharp; orbital observations; pebbles; planets; roughness; rounding; sandstone; sedimentary rocks; sediments; size; sorting; terrains; terrestrial planets; THEMIS; thermal inertia; transport DO - http://dx.doi.org/10.1016/j.icarus.2016.03.001 ER - TY - JOUR T1 - Results of a Hubble Space Telescope search for natural satellites of dwarf planet 1 Ceres AN - 1828845001; 2016-088185 AB - In order to prepare for the arrival of the Dawn spacecraft at Ceres, a search for satellites was undertaken by the Hubble Space Telescope (HST) to enhance the mission science return and to ensure spacecraft safety. Previous satellite searches from ground-based telescopes have detected no satellites within Ceres' Hill sphere down to a size of 3 km (Gehrels et al. 1987) and early HST investigations searched to a limit of 1-2 km (Bieryla et al. 2011). The Wide Field Camera 3 (WFC3) on board the HST was used to image Ceres between 14 April-28 April 2014. These images cover approximately the inner third of Ceres' Hill sphere, where the Hill sphere is the region surrounding Ceres where stable satellite orbits are possible. We performed a deep search for possible companions orbiting Ceres. No natural companions were located down to a diameter of 48 m, over most of the Hill sphere to a distance of 205,000 km (434 Ceres radii) from the surface of Ceres. It was impossible to search all the way to the surface of Ceres because of scattered light, but at a distance of 2865 km (five Ceres radii), the search limit was determined to be 925 m. JF - Icarus AU - DeMario, Benjamin E AU - Schmidt, Britney E AU - Mutchler, Max J AU - Li, Jian-Yang AU - McFadden, Lucy A AU - McLean, Brian J AU - Russell, Christopher T Y1 - 2016/12// PY - 2016 DA - December 2016 SP - 308 EP - 314 PB - Elsevier, New York, NY VL - 280 SN - 0019-1035, 0019-1035 KW - Ceres KW - asteroids KW - telescope methods KW - Kuiper Belt KW - Hill sphere KW - data processing KW - stability KW - dwarf planets KW - size KW - detection KW - Hubble Space Telescope KW - satellites KW - image analysis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828845001?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Results+of+a+Hubble+Space+Telescope+search+for+natural+satellites+of+dwarf+planet+1+Ceres&rft.au=DeMario%2C+Benjamin+E%3BSchmidt%2C+Britney+E%3BMutchler%2C+Max+J%3BLi%2C+Jian-Yang%3BMcFadden%2C+Lucy+A%3BMcLean%2C+Brian+J%3BRussell%2C+Christopher+T&rft.aulast=DeMario&rft.aufirst=Benjamin&rft.date=2016-12-01&rft.volume=280&rft.issue=&rft.spage=308&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.07.005 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 27 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-10-25 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - asteroids; Ceres; data processing; detection; dwarf planets; Hill sphere; Hubble Space Telescope; image analysis; Kuiper Belt; satellites; size; stability; telescope methods DO - http://dx.doi.org/10.1016/j.icarus.2016.07.005 ER - TY - JOUR T1 - Comparison of areas in shadow from imaging and altimetry in the north polar region of Mercury and implications for polar ice deposits AN - 1828844696; 2016-088177 AB - Earth-based radar observations and results from the MESSENGER mission have provided strong evidence that permanently shadowed regions near Mercury's poles host deposits of water ice. MESSENGER's complete orbital image and topographic datasets enable Mercury's surface to be observed and modeled under an extensive range of illumination conditions. The shadowed regions of Mercury's north polar region from 65 degrees N to 90 degrees N were mapped by analyzing Mercury Dual Imaging System (MDIS) images and by modeling illumination with Mercury Laser Altimeter (MLA) topographic data. The two independent methods produced strong agreement in identifying shadowed areas. All large radar-bright deposits, those hosted within impact craters > or =6 km in diameter, collocate with regions of shadow identified by both methods. However, only approximately 46% of the persistently shadowed areas determined from images and approximately 43% of the permanently shadowed areas derived from altimetry host radar-bright materials. Some sizable regions of shadow that do not host radar-bright deposits experience thermal conditions similar to those that do. The shadowed craters that lack radar-bright materials show a relation with longitude that is not related to the thermal environment, suggesting that the Earth-based radar observations of these locations may have been limited by viewing geometry, but it is also possible that water ice in these locations is insulated by anomalously thick lag deposits or that these shadowed regions do not host water ice. JF - Icarus AU - Deutsch, Ariel N AU - Chabot, Nancy L AU - Mazarico, Erwan AU - Ernst, Carolyn M AU - Head, James W AU - Neumann, Gregory A AU - Solomon, Sean C Y1 - 2016/12// PY - 2016 DA - December 2016 SP - 158 EP - 171 PB - Elsevier, New York, NY VL - 280 SN - 0019-1035, 0019-1035 KW - water KW - polar regions KW - imagery KW - Mercury Dual Imaging System KW - data processing KW - radar methods KW - mapping KW - altimetry KW - terrestrial planets KW - spatial distribution KW - planets KW - topography KW - craters KW - ice KW - permanently shadowed regions KW - Mercury Planet KW - Mercury Laser Altimeter KW - MESSENGER Mission KW - image analysis KW - backscattering KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828844696?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+crustal+magnetic+field+from+low-altitude+measurements+by+MESSENGER&rft.au=Johnson%2C+Catherine+L%3BPhillips%2C+Roger+J%3BPurucker%2C+Michael+E%3BAnderson%2C+Brian+J%3BByrne%2C+Paul+K%3BDenevi%2C+Brett+W%3BFan%2C+Kevin+A%3BFeinberg%2C+Joshua+M%3BHauck%2C+Steven+A%3BHead%2C+James+W%2C+III%3BKorth%2C+Haje%3BJames%2C+Peter+B%3BMazarico%2C+Erwan%3BNeumann%2C+Gregory+A%3BPhilpott%2C+Lydia+C%3BSiegler%2C+Matthew+A%3BStrauss%2C+Becky+E%3BTsyganenko%2C+Nikolai+A+%28Nikolay+A%29%3BSolomon%2C+Sean+C%3BAnonymous&rft.aulast=Johnson&rft.aufirst=Catherine&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 36 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - Last updated - 2016-10-25 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - altimetry; backscattering; craters; data processing; ice; image analysis; imagery; mapping; Mercury Dual Imaging System; Mercury Laser Altimeter; Mercury Planet; MESSENGER Mission; permanently shadowed regions; planets; polar regions; radar methods; spatial distribution; terrestrial planets; topography; water DO - http://dx.doi.org/10.1016/j.icarus.2016.06.015 ER - TY - NEWS T1 - Extremely Warm 2015-'16 Winter Cyclone Weakened Arctic Sea Ice Pack AN - 1840898701 JF - UPI Space Daily AU - Maria-Jose Vinas for NASA Earth News Y1 - 2016/11/17/ PY - 2016 DA - 2016 Nov 17 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840898701?accountid=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=Extremely+Warm+2015-%2716+Winter+Cyclone+Weakened+Arctic+Sea+Ice+Pack&rft.au=Maria-Jose+Vinas+for+NASA+Earth+News&rft.aulast=Maria-Jose+Vinas+for+NASA+Earth+News&rft.aufirst=&rft.date=2016-11-17&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 - 2016-11-17 ER - TY - JOUR T1 - In situ measurement of atmospheric krypton and xenon on Mars with Mars Science Laboratory AN - 1849308149; 2016-110865 AB - Mars Science Laboratory's Sample Analysis at Mars (SAM) investigation has measured all of the stable isotopes of the heavy noble gases krypton and xenon in the martian atmosphere, in situ, from the Curiosity Rover at Gale Crater, Mars. Previous knowledge of martian atmospheric krypton and xenon isotope ratios has been based upon a combination of the Viking mission's krypton and xenon detections and measurements of noble gas isotope ratios in martian meteorites. However, the meteorite measurements reveal an impure mixture of atmospheric, mantle, and spallation contributions. The xenon and krypton isotopic measurements reported here include the complete set of stable isotopes, unmeasured by Viking. The new results generally agree with Mars meteorite measurements but also provide a unique opportunity to identify various non-atmospheric heavy noble gas components in the meteorites. Kr isotopic measurements define a solar-like atmospheric composition, but deviating from the solar wind pattern at (super 80) Kr and (super 82) Kr in a manner consistent with contributions originating from neutron capture in Br. The Xe measurements suggest an intriguing possibility that isotopes lighter than (super 132) Xe have been enriched to varying degrees by spallation and neutron capture products degassed to the atmosphere from the regolith, and a model is constructed to explore this possibility. Such a spallation component, however, is not apparent in atmospheric Xe trapped in the glassy phases of martian meteorites. JF - Earth and Planetary Science Letters AU - Conrad, Pamela G AU - Malespin, C A AU - Franz, H B AU - Pepin, R O AU - Trainer, Melissa G AU - Schwenzer, S P AU - Atreya, S K AU - Freissinet, Caroline AU - Jones, J H AU - Manning, H AU - Owen, T AU - Pavlov, A A AU - Wiens, R C AU - Wong, M H AU - Mahaffy, Paul R Y1 - 2016/11/15/ PY - 2016 DA - 2016 Nov 15 SP - 1 EP - 9 PB - Elsevier, Amsterdam VL - 454 SN - 0012-821X, 0012-821X KW - stony meteorites KW - isotopes KW - Martian meteorites KW - enrichment KW - halogens KW - mass spectra KW - Mars KW - stable isotopes KW - Gale Crater KW - meteorites KW - noble gases KW - mixing KW - Curiosity Rover KW - spectra KW - spallation KW - in situ KW - neutron capture KW - atmosphere KW - bromine KW - xenon KW - krypton KW - achondrites KW - measurement KW - terrestrial planets KW - planets KW - Mars Science Laboratory KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849308149?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=In+situ+measurement+of+atmospheric+krypton+and+xenon+on+Mars+with+Mars+Science+Laboratory&rft.au=Conrad%2C+Pamela+G%3BMalespin%2C+C+A%3BFranz%2C+H+B%3BPepin%2C+R+O%3BTrainer%2C+Melissa+G%3BSchwenzer%2C+S+P%3BAtreya%2C+S+K%3BFreissinet%2C+Caroline%3BJones%2C+J+H%3BManning%2C+H%3BOwen%2C+T%3BPavlov%2C+A+A%3BWiens%2C+R+C%3BWong%2C+M+H%3BMahaffy%2C+Paul+R&rft.aulast=Conrad&rft.aufirst=Pamela&rft.date=2016-11-15&rft.volume=454&rft.issue=&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2016.08.028 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 47 N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Includes appendix N1 - Last updated - 2016-12-16 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - achondrites; atmosphere; bromine; Curiosity Rover; enrichment; Gale Crater; halogens; in situ; isotopes; krypton; Mars; Mars Science Laboratory; Martian meteorites; mass spectra; measurement; meteorites; mixing; neutron capture; noble gases; planets; regolith; spallation; spectra; stable isotopes; stony meteorites; terrestrial planets; xenon DO - http://dx.doi.org/10.1016/j.epsl.2016.08.028 ER - TY - JOUR T1 - A high continental weathering flux into Paleoarchean seawater revealed by strontium isotope analysis of 3.26 Ga barite AN - 1849307864; 2016-110868 AB - Controls on Archean seawater chemistry remain controversial. Many studies have suggested that it was largely controlled by oceanic hydrothermal fluid circulation. Recent work, however, from clastic sequences, Hf-O isotope data from detrital zircons, and models for the Rb/Sr evolution of the continental crust suggest that intense continental weathering and low-temperature surface alteration were more important than previously thought during the early Archean. This is consistent with biogeochemical studies that suggest the Archean had a diverse microbial ecology, which would, in part, need to be sustained by nutrients (e.g., phosphorus) that were derived from continental weathering. To further quantify continental weathering during the early Archean, we analyzed 3.26 Ga barite from the Fig Tree Group, South Africa for strontium, oxygen, and sulfur isotope compositions. We propose that the seawater component of the barite is characterized by (super 87) Sr/ (super 86) Sr ratios >0.701, which is significantly more radiogenic than contemporaneous mantle ( approximately 0.7007-0.7008). The radiogenic nature of seawater at this time suggests that the continental weathering flux at 3.26 Ga had a large impact on ocean chemistry 400 million years earlier than previously suggested. JF - Earth and Planetary Science Letters AU - Satkoski, Aaron M AU - Lowe, Donald R AU - Beard, Brian L AU - Coleman, Max L AU - Johnson, Clark M Y1 - 2016/11/15/ PY - 2016 DA - 2016 Nov 15 SP - 28 EP - 35 PB - Elsevier, Amsterdam VL - 454 SN - 0012-821X, 0012-821X KW - alteration KW - sea water KW - oxygen KW - isotopes KW - mantle KW - continental crust KW - Paleoarchean KW - stable isotopes KW - temperature KW - paleoecology KW - Archean KW - South Africa KW - Barberton greenstone belt KW - alkaline earth metals KW - Precambrian KW - sulfates KW - isotope ratios KW - O-18/O-16 KW - weathering KW - Sr-87/Sr-86 KW - Fig Tree Group KW - S-34/S-32 KW - metals KW - Southern Africa KW - low temperature KW - sulfur KW - Africa KW - barite KW - weathering rates KW - strontium KW - crust KW - microorganisms KW - 12:Stratigraphy KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849307864?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=A+high+continental+weathering+flux+into+Paleoarchean+seawater+revealed+by+strontium+isotope+analysis+of+3.26+Ga+barite&rft.au=Satkoski%2C+Aaron+M%3BLowe%2C+Donald+R%3BBeard%2C+Brian+L%3BColeman%2C+Max+L%3BJohnson%2C+Clark+M&rft.aulast=Satkoski&rft.aufirst=Aaron&rft.date=2016-11-15&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 46 N1 - Document feature - illus. incl. geol. sketch map N1 - SuppNotes - Includes appendix N1 - Last updated - 2016-12-16 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - Africa; alkaline earth metals; alteration; Archean; Barberton greenstone belt; barite; continental crust; crust; Fig Tree Group; isotope ratios; isotopes; low temperature; mantle; metals; microorganisms; O-18/O-16; oxygen; Paleoarchean; paleoecology; Precambrian; S-34/S-32; sea water; South Africa; Southern Africa; Sr-87/Sr-86; stable isotopes; strontium; sulfates; sulfur; temperature; weathering; weathering rates DO - http://dx.doi.org/10.1016/j.epsl.2016.08.032 ER - TY - JOUR T1 - Evidence for impact induced pressure gradients on the Allende CV3 parent body; consequences for fluid and volatile transport AN - 1849307757; 2016-110886 AB - Carbonaceous chondrites, such as those associated with the Vigarano (CV) parent body, exhibit a diverse range of oxidative/reduced alteration mineralogy (McSween, 1977). Although fluids are often cited as the medium by which this occurs (Rubin, 2012), a mechanism to explain how this fluid migrates, and why some meteorite subtypes from the same planetary body are more oxidized than others remains elusive. In our study we examined a slab of the well-known Allende (CV3 (sub OxA) ) meteorite. Using several petrological techniques (e.g., Fry's and Flinn) and Computerized Tomography (CT) we discover it exhibits a strong penetrative planar fabric, resulting from strain partitioning among its major components: Calcium-Aluminum-rich Inclusions (CAIs) (64.5% (sub CT) ) > matrix (21.5% (sub Fry) ) > chondrules (17.6% (sub CT) ). In addition to the planar fabric, we found a strong lineation defined by the alignment of the maximum elongation of flattened particles interpreted to have developed by an impact event. The existence of a lineation could either be non-coaxial deformation, or the result of a mechanically heterogeneous target material. In the later case it could have formed due to discontinuous patches of sub-surface ice and/or fabrics developed through prior impact compaction (MacPherson and Krot, 2014), which would have encouraged preferential flow within the target material immediately following the impact, compacting pore spaces. We suggest that structurally controlled movement of alteration fluids in the asteroid parent body along pressure gradients contributed to the formation of secondary minerals, which may have ultimately lead to the different oxidized subtypes. JF - Earth and Planetary Science Letters AU - Tait, Alastair W AU - Fisher, Kent R AU - Srinivasan, Poorna AU - Simon, Justin I Y1 - 2016/11/15/ PY - 2016 DA - 2016 Nov 15 SP - 213 EP - 224 PB - Elsevier, Amsterdam VL - 454 SN - 0012-821X, 0012-821X KW - alteration KW - stony meteorites KW - strain KW - calcium-aluminum inclusions KW - fluid phase KW - preferential flow KW - CV chondrites KW - preferred orientation KW - Allende Meteorite KW - meteorites KW - transport KW - rheology KW - inclusions KW - heterogeneity KW - fabric KW - chondrites KW - pressure KW - secondary minerals KW - parent bodies KW - matrix KW - stress fields KW - carbonaceous chondrites KW - impacts KW - deformation KW - volatiles KW - chondrules KW - petrography KW - foliation KW - computed tomography data KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849307757?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Evidence+for+impact+induced+pressure+gradients+on+the+Allende+CV3+parent+body%3B+consequences+for+fluid+and+volatile+transport&rft.au=Tait%2C+Alastair+W%3BFisher%2C+Kent+R%3BSrinivasan%2C+Poorna%3BSimon%2C+Justin+I&rft.aulast=Tait&rft.aufirst=Alastair&rft.date=2016-11-15&rft.volume=454&rft.issue=&rft.spage=213&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2016.09.015 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 51 N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Includes appendix N1 - Last updated - 2016-12-16 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - Allende Meteorite; alteration; calcium-aluminum inclusions; carbonaceous chondrites; chondrites; chondrules; computed tomography data; CV chondrites; deformation; fabric; fluid phase; foliation; heterogeneity; impacts; inclusions; matrix; meteorites; parent bodies; petrography; preferential flow; preferred orientation; pressure; rheology; secondary minerals; stony meteorites; strain; stress fields; transport; volatiles DO - http://dx.doi.org/10.1016/j.epsl.2016.09.015 ER - TY - JOUR T1 - Fluidized-sediment pipes in Gale Crater, Mars, and possible Earth analogs AN - 1849307740; 2016-110971 AB - Since landing in Gale crater, the Mars Science Laboratory rover Curiosity has traversed fluvial, lacustrine, and eolian sedimentary rocks that were deposited within the crater approximately 3.6 to 3.2 b.y. ago. Here we describe structures interpreted to be pipes formed by vertical movement of fluidized sediment. Like many pipes on Earth, those in Gale crater are more resistant to erosion than the host rock; they form near other pipes, dikes, or deformed sediment; and some contain internal concentric or eccentric layering. These structures provide new evidence of the importance of subsurface aqueous processes in shaping the near-surface geology of Mars. JF - Geology (Boulder) AU - Rubin, David M AU - Fairen, Alberto G AU - Martinez-Frias, J AU - Frydenvang, Jens AU - Gasnault, Olivier AU - Gelfenbaum, G AU - Goetz, W AU - Grotzinger, John P AU - Le Mouelic, S AU - Mangold, N AU - Newsom, H AU - Oehler, D Z AU - Rapin, William AU - Schieber, Juergen AU - Wiens, R C Y1 - 2016/11/03/ PY - 2016 DA - 2016 Nov 03 SP - 7 EP - 10 PB - Geological Society of America (GSA), Boulder, CO VL - 45 IS - 1 SN - 0091-7613, 0091-7613 KW - United States KW - processes KW - Colorado Plateau KW - Mars KW - Gale Crater KW - flows KW - terrestrial planets KW - case studies KW - planets KW - cylindrical structures KW - Curiosity Rover KW - sediments KW - Mars Science Laboratory KW - terrestrial comparison KW - fluidization KW - sedimentary structures KW - 06A:Sedimentary petrology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849307740?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Fluidized-sediment+pipes+in+Gale+Crater%2C+Mars%2C+and+possible+Earth+analogs&rft.au=Rubin%2C+David+M%3BFairen%2C+Alberto+G%3BMartinez-Frias%2C+J%3BFrydenvang%2C+Jens%3BGasnault%2C+Olivier%3BGelfenbaum%2C+G%3BGoetz%2C+W%3BGrotzinger%2C+John+P%3BLe+Mouelic%2C+S%3BMangold%2C+N%3BNewsom%2C+H%3BOehler%2C+D+Z%3BRapin%2C+William%3BSchieber%2C+Juergen%3BWiens%2C+R+C&rft.aulast=Rubin&rft.aufirst=David&rft.date=2016-11-03&rft.volume=45&rft.issue=1&rft.spage=7&rft.isbn=&rft.btitle=&rft.title=Geology+%28Boulder%29&rft.issn=00917613&rft_id=info:doi/10.1130%2FG38339.1 L2 - http://geology.gsapubs.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, 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 - 2016-01-01 N1 - Number of references - 36 N1 - PubXState - CO N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2017-01-19 N1 - CODEN - GLGYBA N1 - SubjectsTermNotLitGenreText - case studies; Colorado Plateau; Curiosity Rover; cylindrical structures; flows; fluidization; Gale Crater; Mars; Mars Science Laboratory; planets; processes; sedimentary structures; sediments; terrestrial comparison; terrestrial planets; United States DO - http://dx.doi.org/10.1130/G38339.1 ER - TY - JOUR T1 - The formation of Charon's red poles from seasonally cold-trapped volatiles AN - 1849307671; 2016-111033 JF - Nature (London) AU - Grundy, W M AU - Cruikshank, D P AU - Gladstone, G R AU - Howett, C J A AU - Lauer, T R AU - Spencer, John R AU - Summers, M E AU - Buie, Marc W AU - Earle, A M AU - Enrico, K AU - Parker, J W AU - Porter, S B AU - Singer, Kelsi N AU - Stern, S Alan AU - Verbiscer, A J AU - Beyer, R A AU - Binzel, R P AU - Buratti, B J AU - Cook, J C AU - Dalle Ore, C M AU - Olkin, C B AU - Parker, A H AU - Protopapa, S AU - Quirico, E AU - Retherford, K D AU - Robbins, Stuart J AU - Schmitt, B AU - Stansberry, John A AU - Umurhan, Orkan M AU - Weaver, H A AU - Young, L A AU - Zangari, A M AU - Bray, V J AU - Cheng, A F AU - McKinnon, W B AU - McNutt, R L, Jr AU - Moore, J M AU - Nimmo, F AU - Reuter, D C AU - Schenk, Paul M Y1 - 2016/11/03/ PY - 2016 DA - 2016 Nov 03 SP - 65 EP - 68 PB - Macmillan Journals, London VL - 538 IS - 7627 SN - 0028-0836, 0028-0836 KW - polar regions KW - patterns KW - dwarf planets KW - polar caps KW - infrared spectra KW - multispectral analysis KW - volatiles KW - organic compounds KW - surface features KW - hydrocarbons KW - Charon KW - spectra KW - satellites KW - Pluto KW - New Horizons Mission KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849307671?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=The+formation+of+Charon%27s+red+poles+from+seasonally+cold-trapped+volatiles&rft.au=Grundy%2C+W+M%3BCruikshank%2C+D+P%3BGladstone%2C+G+R%3BHowett%2C+C+J+A%3BLauer%2C+T+R%3BSpencer%2C+John+R%3BSummers%2C+M+E%3BBuie%2C+Marc+W%3BEarle%2C+A+M%3BEnrico%2C+K%3BParker%2C+J+W%3BPorter%2C+S+B%3BSinger%2C+Kelsi+N%3BStern%2C+S+Alan%3BVerbiscer%2C+A+J%3BBeyer%2C+R+A%3BBinzel%2C+R+P%3BBuratti%2C+B+J%3BCook%2C+J+C%3BDalle+Ore%2C+C+M%3BOlkin%2C+C+B%3BParker%2C+A+H%3BProtopapa%2C+S%3BQuirico%2C+E%3BRetherford%2C+K+D%3BRobbins%2C+Stuart+J%3BSchmitt%2C+B%3BStansberry%2C+John+A%3BUmurhan%2C+Orkan+M%3BWeaver%2C+H+A%3BYoung%2C+L+A%3BZangari%2C+A+M%3BBray%2C+V+J%3BCheng%2C+A+F%3BMcKinnon%2C+W+B%3BMcNutt%2C+R+L%2C+Jr%3BMoore%2C+J+M%3BNimmo%2C+F%3BReuter%2C+D+C%3BSchenk%2C+Paul+M&rft.aulast=Grundy&rft.aufirst=W&rft.date=2016-11-03&rft.volume=538&rft.issue=7627&rft.spage=65&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2Fnature19340 L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 29 N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2016-12-16 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - Charon; dwarf planets; hydrocarbons; infrared spectra; multispectral analysis; New Horizons Mission; organic compounds; patterns; Pluto; polar caps; polar regions; satellites; spectra; surface features; volatiles DO - http://dx.doi.org/10.1038/nature19340 ER - TY - JOUR T1 - Ground surface temperature and humidity, ground temperature cycles and the ice table depths in University Valley, McMurdo dry valleys of Antarctica AN - 1863566608; 2017-008771 AB - In the upper McMurdo Dry Valleys, 90% of the measured ice table depths range from 0 to 80 cm; however, numerical models predict that the ice table is not in equilibrium with current climate conditions and should be deeper than measured. This study explored the effects of boundary conditions (air versus ground surface temperature and humidity), ground temperature cycles, and their diminishing amplitude with depth and advective flows (Darcy flow and wind pumping) on water vapor fluxes in soils and ice table depths using the REGO vapor diffusion model. We conducted a series of numerical experiments that illustrated different hypothetical scenarios and estimated the water vapor flux and ice table depth using the conditions in University Valley, a small high elevation valley. In situ measurements showed that while the mean annual ground surface temperature approximates that in the air, the mean annual ground surface relative humidity (>85% (sub ice) ) was significantly higher than in the atmosphere ( approximately 50% (sub ice) ). When ground surface temperature and humidity were used as boundary conditions, along with damping diurnal and annual temperature cycles within the sandy soil, REGO predicted that measured ice table depths in the valley were in equilibrium with contemporary conditions. Based on model results, a dry soil column can become saturated with ice within centuries. Overall, the results from the new soil data and modeling have implications regarding the factors and boundary conditions that affect the stability of ground ice in cold and hyperarid regions where liquid water is rare. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Earth Surface AU - Fisher, David A AU - Lacelle, Denis AU - Pollard, Wayne AU - Davila, Alfonso AU - McKay, Christopher P Y1 - 2016/11// PY - 2016 DA - November 2016 SP - 2069 EP - 2084 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 11 SN - 2169-9003, 2169-9003 KW - soils KW - cycles KW - University Valley KW - Quartermain Mountains KW - numerical models KW - dry valleys KW - periglacial features KW - depth KW - temperature KW - measurement KW - Antarctica KW - ice table KW - McMurdo dry valleys KW - Victoria Land KW - glacial geology KW - frozen ground KW - climate KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1863566608?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Earth+Surface&rft.atitle=Ground+surface+temperature+and+humidity%2C+ground+temperature+cycles+and+the+ice+table+depths+in+University+Valley%2C+McMurdo+dry+valleys+of+Antarctica&rft.au=Fisher%2C+David+A%3BLacelle%2C+Denis%3BPollard%2C+Wayne%3BDavila%2C+Alfonso%3BMcKay%2C+Christopher+P&rft.aulast=Fisher&rft.aufirst=David&rft.date=2016-11-01&rft.volume=121&rft.issue=11&rft.spage=2069&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Earth+Surface&rft.issn=21699003&rft_id=info:doi/10.1002%2F2016JF004054 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9011/issues?year=2013 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2017-01-01 N1 - Number of references - 47 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2017-02-02 N1 - SubjectsTermNotLitGenreText - Antarctica; climate; cycles; depth; dry valleys; frozen ground; glacial geology; ice table; McMurdo dry valleys; measurement; numerical models; periglacial features; Quartermain Mountains; soils; temperature; University Valley; Victoria Land DO - http://dx.doi.org/10.1002/2016JF004054 ER - TY - JOUR T1 - A radiative transfer modeling approach for accurate interpretation of PAM fluorometry experiments in suspended algal cultures AN - 1859492664; PQ0003985214 AB - The results of a numerical study on the simulation of pulse amplitude modulated (PAM) fluorometry within dense suspensions of photosynthetic microorganisms are presented. The Monte Carlo method was used to solve the radiative transfer equation in an algae-filled cuvette, taking into account absorption, anisotropic scattering, and fluorescence, as well as Fresnel reflections at interfaces. This method was used to simulate the transport of excitation and fluorescence light in a common laboratory fluorometer. In this fluorometer, detected fluorescence originates from a multitude of locations within the algal suspension, which can be exposed to very different fluence rates. The fluorescence-weighted fluence rate is reported, which is the local fluence rate of actinic light, averaged over all locations from which detected fluorescence originated. A methodology is reported for recovering the fluorescence-weighted fluence rate as a function of the transmittance of measuring light and actinic light through the sample, which are easily measured with common laboratory fluorometers. The fluorescence-weighted fluence rate can in turn be used as a correction factor for recovering intrinsic physiological parameters, such as the functional cross section of Photosystem II, from apparent (experimental) values. [copy 2016 American Institute of Chemical Engineers Biotechnol. Prog., 32:1601-1615, 2016 JF - Biotechnology Progress AU - Murphy, Thomas E AU - Prufert-Bebout, Leslie E AU - Bebout, Brad M AD - Exobiology Dept, NASA Ames Research Center, Moffett Field, CA, 94035. Y1 - 2016/11// PY - 2016 DA - November 2016 SP - 1601 EP - 1608 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 32 IS - 6 SN - 8756-7938, 8756-7938 KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Biotechnology and Bioengineering Abstracts UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859492664?accountid=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=Biotechnology+Progress&rft.atitle=A+radiative+transfer+modeling+approach+for+accurate+interpretation+of+PAM+fluorometry+experiments+in+suspended+algal+cultures&rft.au=Murphy%2C+Thomas+E%3BPrufert-Bebout%2C+Leslie+E%3BBebout%2C+Brad+M&rft.aulast=Murphy&rft.aufirst=Thomas&rft.date=2016-11-01&rft.volume=32&rft.issue=6&rft.spage=1601&rft.isbn=&rft.btitle=&rft.title=Biotechnology+Progress&rft.issn=87567938&rft_id=info:doi/10.1002%2Fbtpr.2394 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2017-01-01 N1 - Last updated - 2017-02-01 DO - http://dx.doi.org/10.1002/btpr.2394 ER - TY - JOUR T1 - Investigating seasonal methane emissions in Northern California using airborne measurements and inverse modeling AN - 1855072484; PQ0003960407 AB - Seasonal methane (CH sub(4)) emissions in Northern California are evaluated during this study by using airborne measurement data and inverse model simulations. This research applies Alpha Jet Atmospheric eXperiment (AJAX) measurements obtained during January-February 2013, July 2014, and October-November 2014 over the San Francisco Bay Area (SFBA) and northern San Joaquin Valley (SJV) in order to constrain seasonal CH sub(4) emissions in Northern California. The California Greenhouse Gas Emissions Measurement (CALGEM) a priori emission inventory was applied in conjunction with the Weather Research and Forecasting and Stochastic Time-Inverted Lagrangian Transport model and inverse modeling techniques to optimize CH sub(4) emissions. Comparing model-predicted CH sub(4) mixing ratios with airborne measurements, we find substantial underestimates suggesting that CH sub(4) emissions were likely larger than the year 2008 a priori CALGEM emission inventory in Northern California. Using AJAX measurements to optimize a priori emissions resulted in CH sub(4) flux estimates from the SFBA/SJV of 1.77 plus or minus 0.41, 0.83 plus or minus 0.31, and 1.06 plus or minus 0.39Tgyr super(-1) when using winter, summer, and fall flight data, respectively. Averaging seasonal a posteriori emission estimates (weighted by posterior uncertainties) results in SFBA/SJV annual CH sub(4) emissions of 1.28 plus or minus 0.38Tgyr super(-1). A posteriori uncertainties are reduced more effectively in the SFBA/SJV region compared to state-wide values indicating that the airborne measurements are most sensitive to emissions in this region. A posteriori estimates during this study suggest that dairy livestock was the source with the largest increase relative to the a priori CALGEM emission inventory during all seasons. Key Points * Airborne measurements are used to constrain source apportioned methane (CH sub(4)) emissions in Northern California * Seasonal measurements resulted in SFBA/SJV CH sub(4) emission estimates ranging from 0.83 plus or minus 0.31 to 1.77 plus or minus 0.41Tgyr super(-1) * Emission estimates suggest that existing bottom-up CH sub(4) emission inventories may underestimate fluxes in California JF - Journal of Geophysical Research: Atmospheres AU - Johnson, Matthew S AU - Xi, Xin AU - Jeong, Seongeun AU - Yates, Emma L AU - Iraci, Laura T AU - Tanaka, Tomoaki AU - Loewenstein, Max AU - Tadic, Jovan M AU - Fischer, Marc L AD - Earth Science Division, NASA Ames Research Center, Moffett Field, California, USA. Y1 - 2016/11// PY - 2016 DA - November 2016 SP - 13 EP - 13,767 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 121 IS - 22 SN - 2169-897X, 2169-897X KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1855072484?accountid=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+Geophysical+Research%3A+Atmospheres&rft.atitle=Investigating+seasonal+methane+emissions+in+Northern+California+using+airborne+measurements+and+inverse+modeling&rft.au=Johnson%2C+Matthew+S%3BXi%2C+Xin%3BJeong%2C+Seongeun%3BYates%2C+Emma+L%3BIraci%2C+Laura+T%3BTanaka%2C+Tomoaki%3BLoewenstein%2C+Max%3BTadic%2C+Jovan+M%3BFischer%2C+Marc+L&rft.aulast=Johnson&rft.aufirst=Matthew&rft.date=2016-11-01&rft.volume=121&rft.issue=22&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2016JD025157 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2017-01-01 N1 - Last updated - 2017-01-04 DO - http://dx.doi.org/10.1002/2016JD025157 ER - TY - JOUR T1 - Formaldehyde column density measurements as a suitable pathway to estimate near-surface ozone tendencies from space AN - 1850773565; PQ0003929193 AB - In support of future satellite missions that aim to address the current shortcomings in measuring air quality from space, NASA's Deriving Information on Surface Conditions from Column and Vertically Resolved Observations Relevant to Air Quality (DISCOVER-AQ) field campaign was designed to enable exploration of relationships between column measurements of trace species relevant to air quality at high spatial and temporal resolution. In the DISCOVER-AQ data set, a modest correlation (r super(2)=0.45) between ozone (O sub(3)) and formaldehyde (CH sub(2)O) column densities was observed. Further analysis revealed regional variability in the O sub(3)-CH sub(2)O relationship, with Maryland having a strong relationship when data were viewed temporally and Houston having a strong relationship when data were viewed spatially. These differences in regional behavior are attributed to differences in volatile organic compound (VOC) emissions. In Maryland, biogenic VOCs were responsible for ~28% of CH sub(2)O formation within the boundary layer column, causing CH sub(2)O to, in general, increase monotonically throughout the day. In Houston, persistent anthropogenic emissions dominated the local hydrocarbon environment, and no discernable diurnal trend in CH sub(2)O was observed. Box model simulations suggested that ambient CH sub(2)O mixing ratios have a weak diurnal trend ( plus or minus 20% throughout the day) due to photochemical effects, and that larger diurnal trends are associated with changes in hydrocarbon precursors. Finally, mathematical relationships were developed from first principles and were able to replicate the different behaviors seen in Maryland and Houston. While studies would be necessary to validate these results and determine the regional applicability of the O sub(3)-CH sub(2)O relationship, the results presented here provide compelling insight into the ability of future satellite missions to aid in monitoring near-surface air quality. Key Points * A correlation between column CH sub(2)O and near-surface O sub(3) measurements was observed and could be useful for monitoring air quality from space * The strength of the correlation between column CH sub(2)O and near-surface O sub(3) is highest when there is temporal variability in CH sub(2)O * The O sub(3)-CH sub(2)O relationship appears to be strongest in regions where emissions of biogenic VOCs dominate the local hydrocarbon mix JF - Journal of Geophysical Research: Atmospheres AU - Schroeder, Jason R AU - Crawford, James H AU - Fried, Alan AU - Walega, James AU - Weinheimer, Andrew AU - Wisthaler, Armin AU - Mueller, Markus AU - Mikoviny, Tomas AU - Chen, Gao AU - Shook, Michael AU - Blake, Donald R AU - Diskin, Glenn AU - Estes, Mark AU - Thompson, Anne M AU - Lefer, Barry L AU - Long, Russell AU - Mattson, Eric AD - NASA Langley Research Center, Hampton, Virginia, USA. Y1 - 2016/11// PY - 2016 DA - November 2016 SP - 13 EP - 13,112 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 121 IS - 21 SN - 2169-897X, 2169-897X KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Remote Sensing KW - Photochemistry KW - Satellite Technology KW - Variability KW - Hydrocarbons KW - Temporal variations KW - Density KW - Anthropogenic factors KW - Environmental factors KW - Spatial variations KW - Exploration KW - Density measurement KW - Mixing ratio KW - Organic Compounds KW - Organic compounds KW - Monitoring KW - Ozone KW - SW 0810:General KW - Q2 09105:Research programmes and expeditions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1850773565?accountid=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+Geophysical+Research%3A+Atmospheres&rft.atitle=Formaldehyde+column+density+measurements+as+a+suitable+pathway+to+estimate+near-surface+ozone+tendencies+from+space&rft.au=Schroeder%2C+Jason+R%3BCrawford%2C+James+H%3BFried%2C+Alan%3BWalega%2C+James%3BWeinheimer%2C+Andrew%3BWisthaler%2C+Armin%3BMueller%2C+Markus%3BMikoviny%2C+Tomas%3BChen%2C+Gao%3BShook%2C+Michael%3BBlake%2C+Donald+R%3BDiskin%2C+Glenn%3BEstes%2C+Mark%3BThompson%2C+Anne+M%3BLefer%2C+Barry+L%3BLong%2C+Russell%3BMattson%2C+Eric&rft.aulast=Schroeder&rft.aufirst=Jason&rft.date=2016-11-01&rft.volume=121&rft.issue=21&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2016JD025419 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-12-01 N1 - Last updated - 2016-12-21 N1 - SubjectsTermNotLitGenreText - Photochemistry; Spatial variations; Temporal variations; Anthropogenic factors; Mixing ratio; Density measurement; Organic compounds; Environmental factors; Ozone; Remote Sensing; Satellite Technology; Variability; Hydrocarbons; Density; Exploration; Organic Compounds; Monitoring DO - http://dx.doi.org/10.1002/2016JD025419 ER - TY - JOUR T1 - The paleoclimate context and future trajectory of extreme summer hydroclimate in eastern Australia AN - 1850772572; PQ0003929186 AB - Eastern Australia recently experienced an intense drought (Millennium Drought, 2003-2009) and record-breaking rainfall and flooding (austral summer 2010-2011). There is some limited evidence for a climate change contribution to these events, but such analyses are hampered by the paucity of information on long-term natural variability. Analyzing a new reconstruction of summer (December-January-February) Palmer Drought Severity Index (the Australia-New Zealand Drought Atlas; ANZDA, 1500-2012 Common Era), we find moisture deficits during the Millennium Drought fall within the range of the last 500 years of natural hydroclimate variability. This variability includes periods of multidecadal drought in the 1500s more persistent than any event in the historical record. However, the severity of the Millennium Drought, which was caused by autumn (March-April-May) precipitation declines, may be underestimated in the ANZDA because the reconstruction is biased toward summer and antecedent spring (September-October-November) precipitation. The pluvial in 2011, however, which was characterized by extreme summer rainfall faithfully captured by the ANZDA, is likely the wettest year in the reconstruction for Coastal Queensland. Climate projections (Representative Concentration Pathways (RCP) 8.5 scenario) suggest that eastern Australia will experience long-term drying during the 21st century. While the contribution of anthropogenic forcing to recent extremes remains an open question, these projections indicate an amplified risk of multiyear drought anomalies matching or exceeding the intensity of the Millennium Drought. Key Points * Recent extremes (the Millennium Drought and 2011 pluvial) are compared to a 500-year soil moisture reconstruction * 2011 was likely the wettest year in the record for Coastal Queensland * Climate projections indicate substantially increased risk of droughts greater than or equal to the magnitude of the Millennium Drought JF - Journal of Geophysical Research: Atmospheres AU - Cook, Benjamin I AU - Palmer, Jonathan G AU - Cook, Edward R AU - Turney, Chris SM AU - Allen, Kathryn AU - Fenwick, Pavla AU - O'Donnell, Alison AU - Lough, Janice M AU - Grierson, Pauline F AU - Ho, Michelle AU - Baker, Patrick J AD - NASA Goddard Institute for Space Studies, New York, New York, USA. Y1 - 2016/11// PY - 2016 DA - November 2016 SP - 12 EP - 12,838 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 121 IS - 21 SN - 2169-897X, 2169-897X KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Atmospheric precipitations KW - Variability KW - Rainfall KW - Climates KW - Climate KW - Climate change KW - Drying KW - Drought KW - Precipitation KW - Palaeoclimate KW - Hydroclimate KW - Soils KW - Flooding KW - Droughts KW - SW 0810:General KW - Q2 09105:Research programmes and expeditions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1850772572?accountid=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+Geophysical+Research%3A+Atmospheres&rft.atitle=The+paleoclimate+context+and+future+trajectory+of+extreme+summer+hydroclimate+in+eastern+Australia&rft.au=Cook%2C+Benjamin+I%3BPalmer%2C+Jonathan+G%3BCook%2C+Edward+R%3BTurney%2C+Chris+SM%3BAllen%2C+Kathryn%3BFenwick%2C+Pavla%3BO%27Donnell%2C+Alison%3BLough%2C+Janice+M%3BGrierson%2C+Pauline+F%3BHo%2C+Michelle%3BBaker%2C+Patrick+J&rft.aulast=Cook&rft.aufirst=Benjamin&rft.date=2016-11-01&rft.volume=121&rft.issue=21&rft.spage=12&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2016JD024892 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-12-01 N1 - Last updated - 2016-12-21 N1 - SubjectsTermNotLitGenreText - Atmospheric precipitations; Climate change; Soils; Climate; Hydroclimate; Flooding; Drying; Palaeoclimate; Droughts; Variability; Rainfall; Climates; Precipitation; Drought DO - http://dx.doi.org/10.1002/2016JD024892 ER - TY - JOUR T1 - Phosphate minerals in the H group of ordinary chondrites, and fluid activity recorded by apatite heterogeneity in the Zag H3-6 regolith breccia AN - 1849308378; 2016-110938 AB - Phosphate minerals in ordinary chondrites provide a record of fluids that were present during metamorphic heating of the chondrite parent asteroids. We have carried out a petrographic study of the phosphate minerals, merrillite and apatite, in metamorphosed H group ordinary chondrites of petrologic type 4-6, to understand development of phosphate minerals and associated fluid evolution during metamorphism. In unbrecciated chondrites, apatite is Cl rich and shows textural evolution from fine-grained apatite-merrillite assemblages in type 4 toward larger, uniform grains in type 6. The Cl/F ratio in apatite shows a similar degree of heterogeneity in all petrologic types, and no systematic change in compositions with metamorphic grade, which suggests that compositions in each meteorite are dictated by localized conditions, possibly because of a limited fluid/rock ratio. The development of phosphate minerals in H chondrites is similar to that of L and LL chondrites, despite the fact that feldspar equilibration resulting from albitization is complete in H4 chondrites but not in L4 or LL4 chondrites. This suggests that albitization took place during an earlier period of the metamorphic history than that recorded by preserved apatite compositions, and chemical equilibrium was not achieved throughout the H chondrite parent body or bodies during the late stages of metamorphism. A relict igneous clast in the H5 chondrite, Oro Grande has apatite rims on relict phenocrysts of (possibly) diopside that have equilibrated with the host chondrite. Apatite in the Zag H3-6 regolith breccia records a complex fluid history, which is likely related to the presence of halite in this meteorite. The porous dark H4 matrix of Zag, where halite is observed, has a high apatite/merrillite ratio, and apatite is extremely Cl rich. One light H6 clast contains similarly Cl-rich apatite. In a second light H6 clast, apatite compositions are very heterogeneous and more F-rich. Apatites in both H4 matrix and H6 clasts have very low H (sub 2) O contents. Heterogeneous apatite compositions in Zag record multiple stages of regolith processing and shock at the surface of the H chondrite parent body, and apatite records either the passage of fluids of variable compositions resulting from different impact-related processes, or the passage of a single fluid whose composition evolved as it interacted with the chondrite regolith. Unraveling the history of apatite can potentially help to interpret the internal structure of chondrite parent bodies, with implications for physical and mechanical properties of chondritic asteroids. The behavior of halogens recorded by apatite is important for understanding the behavior of volatile elements in general: if impact-melt materials close to the surface of a chondritic asteroid are readily degassed, the volatile inventories of terrestrial planets could be considerably more depleted than the CI carbonaceous chondrite abundances that are commonly assumed. JF - American Mineralogist AU - Jones, Rhian H AU - Mccubbin, Francis M AU - Guan, Yunbin Y1 - 2016/11// PY - 2016 DA - November 2016 SP - 2452 EP - 2467 PB - Mineralogical Society of America, Washington, DC VL - 101 IS - 11 SN - 0003-004X, 0003-004X KW - Zag Meteorite KW - water KW - Oro Grande Meteorite KW - apatite KW - ordinary chondrites KW - Estacado Meteorite KW - breccia KW - stony meteorites KW - fluid phase KW - phosphates KW - H chondrites KW - carbonaceous chondrites KW - meteorites KW - merrillite KW - chlorapatite KW - Avanhandava Meteorite KW - Richardton Meteorite KW - heterogeneity KW - chondrites KW - regolith 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/1849308378?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Phosphate+minerals+in+the+H+group+of+ordinary+chondrites%2C+and+fluid+activity+recorded+by+apatite+heterogeneity+in+the+Zag+H3-6+regolith+breccia&rft.au=Jones%2C+Rhian+H%3BMccubbin%2C+Francis+M%3BGuan%2C+Yunbin&rft.aulast=Jones&rft.aufirst=Rhian&rft.date=2016-11-01&rft.volume=101&rft.issue=11&rft.spage=2452&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam-2016-5728 L2 - http://www.minsocam.org/MSA/AmMin/TOC/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 55 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2016-12-16 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - apatite; Avanhandava Meteorite; breccia; carbonaceous chondrites; chlorapatite; chondrites; Estacado Meteorite; fluid phase; H chondrites; heterogeneity; merrillite; meteorites; ordinary chondrites; Oro Grande Meteorite; phosphates; regolith; Richardton Meteorite; stony meteorites; water; Zag Meteorite DO - http://dx.doi.org/10.2138/am-2016-5728 ER - TY - JOUR T1 - The Relationship between Boundary Layer Stability and Cloud Cover in the Post-Cold-Frontal Region AN - 1846404100; PQ0003820290 AB - Using NASA Aqua MODIS and AIRS data, the relationship between low-level cloud cover (cloud top below the 700-hPa level) and boundary layer stability is explored in post-cold-frontal conditions. A linear relationship is found between seasonal cloud cover and two separate measures of inversion strength, the lower-tropospheric stability (LTS) and the estimated inversion strength (EIS), for two specific regions in the North Atlantic and Pacific in quiescent and weakly subsiding conditions. The relationship barely changes when considering dynamically active and subsiding post-cold-frontal conditions for the same regions. To explore the generality of this result and increase sample size, cold-front-centered composites of cloud cover and stability are constructed. The Northern and Southern Hemisphere seasonal cloud cover and stability distributions in the post-cold-frontal regions are then compared. A fairly good correlation between cloud cover and EIS is found in both hemispheres across all seasons, suggesting that a linear relationship between cloud cover and inversion strength proposed for quiescent conditions exists also in more dynamically active subsiding post-cold-frontal conditions. However, for a given season and hemisphere, the correlation between cloud cover and EIS degrades in post-cold-frontal regions, especially in the Northern Hemisphere. At these scales, other large-scale factors tend to correlate better with cloud cover. JF - Journal of Climate AU - Naud, Catherine M AU - Booth, James F AU - Del Genio, Anthony D AD - Applied Physics and Applied Mathematics, Columbia University, and NASA GISS, New York, New York Y1 - 2016/11// PY - 2016 DA - November 2016 SP - 8129 EP - 8149 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 29 IS - 22 SN - 0894-8755, 0894-8755 KW - Meteorological & Geoastrophysical Abstracts; Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Boundary layer stability KW - Boundary Layers KW - Correlations KW - Seasonal variability KW - MODIS (Moderate Resolution Imaging Spectrometer) KW - IN, Pacific KW - Climates KW - Climate KW - Cloud Cover KW - Cloud cover KW - AN, North Atlantic KW - Inversions KW - Clouds KW - Strength KW - Satellite data KW - Boundary layers KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General 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/1846404100?accountid=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+Climate&rft.atitle=The+Relationship+between+Boundary+Layer+Stability+and+Cloud+Cover+in+the+Post-Cold-Frontal+Region&rft.au=Naud%2C+Catherine+M%3BBooth%2C+James+F%3BDel+Genio%2C+Anthony+D&rft.aulast=Naud&rft.aufirst=Catherine&rft.date=2016-11-01&rft.volume=29&rft.issue=22&rft.spage=8129&rft.isbn=&rft.btitle=&rft.title=Journal+of+Climate&rft.issn=08948755&rft_id=info:doi/http%3A%2F%2Fdx.doi.org%2F10.1175%2FJCLI-D-15-0700.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-12-01 N1 - Number of references - 39 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Boundary layers; Climate; Cloud cover; Inversions; Clouds; Satellite data; Boundary layer stability; Correlations; MODIS (Moderate Resolution Imaging Spectrometer); Seasonal variability; Strength; Climates; Boundary Layers; Cloud Cover; IN, Pacific; AN, North Atlantic DO - http://dx.doi.org/10.1175/JCLI-D-15-0700.1 ER - TY - JOUR T1 - High-resolution WRF simulation of cloud properties over the super typhoon Haiyan: physics parameterizations and comparison against MODIS AN - 1837332611; PQ0003750180 AB - Numerical weather prediction (NWP) models can complement the satellite technology in simulating the cloud properties, especially in extreme storm events, when gathering new data becomes more than essential for accurate weather forecasting. In this study, we investigate the capability of the Weather Research and Forecasting (WRF) model to realistically simulate some important cloud properties in high-resolution grids, such as cloud phase (e.g., liquid or ice) and cloud water path. The sensitivity of different combinations of physics parameterizations to the simulated cloud fields is studied. The experiment is conducted on a super typhoon event by configuring the WRF model in two domains, with two-way nesting, allowing bidirectional information exchange between the parent and the nest. In order to do the assessment, the simulated cloud fields are compared against MODIS-derived cloud properties from one overpass scene. While the simulations have been able to capture the spatial distribution of cloud properties reasonably well, produced cloud quantities such as ice water path has been significantly overestimated when compared to the MODIS optical cloud information. The microphysics parameterizations are found to be more sensitive than the planetary boundary layer (PBL) parameterizations. JF - Theoretical and Applied Climatology AU - Islam, Tanvir AU - Srivastava, Prashant K AU - Dai, Qiang AD - NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA, tanvir.islam@jpl.nasa.gov Y1 - 2016/11// PY - 2016 DA - November 2016 SP - 427 EP - 435 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 126 IS - 3-4 SN - 0177-798X, 0177-798X KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts; Oceanic Abstracts; Meteorological & Geoastrophysical Abstracts KW - Prediction KW - Spatial distribution KW - Weather Forecasting KW - Storms KW - Applied climatology KW - Nesting KW - Cloud properties KW - MODIS (Moderate Resolution Imaging Spectrometer) KW - Climatology KW - Atmospheric boundary layer KW - Weather forecasting KW - Modelling KW - Ice KW - Weather KW - Mathematical models KW - Simulation Analysis KW - Water content of clouds KW - Numerical forecasting models KW - Simulation KW - Clouds KW - Hurricanes KW - Satellite data KW - Numerical simulations KW - Boundary layers KW - Typhoons KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General KW - O 4080:Pollution - Control and Prevention KW - Q2 09105:Research programmes and expeditions KW - M2 551.509.1/.5:Forecasting (551.509.1/.5) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1837332611?accountid=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+Applied+Climatology&rft.atitle=High-resolution+WRF+simulation+of+cloud+properties+over+the+super+typhoon+Haiyan%3A+physics+parameterizations+and+comparison+against+MODIS&rft.au=Islam%2C+Tanvir%3BSrivastava%2C+Prashant+K%3BDai%2C+Qiang&rft.aulast=Islam&rft.aufirst=Tanvir&rft.date=2016-11-01&rft.volume=126&rft.issue=3-4&rft.spage=427&rft.isbn=&rft.btitle=&rft.title=Theoretical+and+Applied+Climatology&rft.issn=0177798X&rft_id=info:doi/10.1007%2Fs00704-015-1575-y LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-11-01 N1 - Number of references - 27 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Prediction; Clouds; Hurricanes; Mathematical models; Boundary layers; Simulation; Climatology; Weather forecasting; Modelling; Applied climatology; Satellite data; Spatial distribution; Numerical simulations; Water content of clouds; Numerical forecasting models; MODIS (Moderate Resolution Imaging Spectrometer); Cloud properties; Atmospheric boundary layer; Storms; Weather; Ice; Simulation Analysis; Nesting; Weather Forecasting; Typhoons DO - http://dx.doi.org/10.1007/s00704-015-1575-y ER - TY - JOUR T1 - The effect of dust on the Martian polar vortices AN - 1832727553; 2016-092638 AB - The influence of atmospheric dust on the dynamics and stability of the martian polar vortices is examined, through analysis of Mars Climate Sounder observations and MarsWRF general circulation model simulations. We show that regional and global dust storms produce "transient vortex warming" events that partially or fully disrupt the northern winter polar vortex for brief periods. Increased atmospheric dust heating alters the Hadley circulation and shifts the downwelling branch of the circulation poleward, leading to a disruption of the polar vortex for a period of days to weeks. Through our simulations, we find this effect is dependent on the atmospheric heating rate, which can be changed by increasing the amount of dust in the atmosphere or by altering the dust optical properties (e.g., single scattering albedo). Despite this, our simulations show that some level of atmospheric dust is necessary to produce a distinct northern hemisphere winter polar vortex. JF - Icarus AU - Guzewich, Scott D AU - Toigo, A D AU - Waugh, D W Y1 - 2016/11/01/ PY - 2016 DA - 2016 Nov 01 SP - 100 EP - 118 PB - Elsevier, New York, NY VL - 278 SN - 0019-1035, 0019-1035 KW - Mars KW - simulation KW - temperature KW - polar vortices KW - atmospheric circulation KW - dynamics KW - sediments KW - opacity KW - dust storms KW - general circulation models KW - polar regions KW - clastic sediments KW - Mars Climate Sounder KW - atmosphere KW - Mars Reconnaissance Orbiter KW - vorticity KW - terrestrial planets KW - models KW - planets KW - optical properties KW - transient phenomena KW - downwelling KW - eddies KW - dust KW - seasonal variations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832727553?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+effect+of+dust+on+the+Martian+polar+vortices&rft.au=Guzewich%2C+Scott+D%3BToigo%2C+A+D%3BWaugh%2C+D+W&rft.aulast=Guzewich&rft.aufirst=Scott&rft.date=2016-11-01&rft.volume=278&rft.issue=&rft.spage=100&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.06.009 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 45 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-10-27 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - atmosphere; atmospheric circulation; clastic sediments; downwelling; dust; dust storms; dynamics; eddies; general circulation models; Mars; Mars Climate Sounder; Mars Reconnaissance Orbiter; models; opacity; optical properties; planets; polar regions; polar vortices; seasonal variations; sediments; simulation; temperature; terrestrial planets; transient phenomena; vorticity DO - http://dx.doi.org/10.1016/j.icarus.2016.06.009 ER - TY - JOUR T1 - PolarBRDF: A general purpose Python package for visualization and quantitative analysis of multi-angular remote sensing measurements AN - 1832622456; 783952-16 AB - The Bidirectional Reflectance Distribution Function (BRDF) is a fundamental concept for characterizing the reflectance property of a surface, and helps in the analysis of remote sensing data from satellite, airborne and surface platforms. Multi-angular remote sensing measurements are required for the development and evaluation of BRDF models for improved characterization of surface properties. However, multi-angular data and the associated BRDF models are typically multidimensional involving multi-angular and multi-wavelength information. Effective visualization of such complex multidimensional measurements for different wavelength combinations is presently somewhat lacking in the literature, and could serve as a potentially useful research and teaching tool in aiding both interpretation and analysis of BRDF measurements. This article describes a newly developed software package in Python (PolarBRDF) to help visualize and analyze multi-angular data in polar and False Color Composite (FCC) forms. PolarBRDF also includes functionalities for computing important multi-angular reflectance/albedo parameters including spectral albedo, principal plane reflectance and spectral reflectance slope. Application of PolarBRDF is demonstrated using various case studies obtained from airborne multi-angular remote sensing measurements using NASA's Cloud Absorption Radiometer (CAR). Our visualization program also provides functionalities for untangling complex surface/atmosphere features embedded in pixel-based remote sensing measurements, such as the FCC imagery generation of BRDF measurements of grasslands in the presence of wildfire smoke and clouds. Furthermore, PolarBRDF also provides quantitative information of the angular distribution of scattered surface/atmosphere radiation, in the form of relevant BRDF variables such as sunglint, hotspot and scattering statistics. JF - Computers & Geosciences AU - Singh, Manoj K AU - Gautam, Ritesh AU - Gatebe, Charles K AU - Poudyal, Rajesh Y1 - 2016/11// PY - 2016 DA - November 2016 SP - 173 EP - 180 PB - Elsevier, Amsterdam VL - 96 SN - 0098-3004, 0098-3004 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832622456?accountid=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=Computers+%26+Geosciences&rft.atitle=PolarBRDF%3A+A+general+purpose+Python+package+for+visualization+and+quantitative+analysis+of+multi-angular+remote+sensing+measurements&rft.au=Singh%2C+Manoj+K%3BGautam%2C+Ritesh%3BGatebe%2C+Charles+K%3BPoudyal%2C+Rajesh&rft.aulast=Singh&rft.aufirst=Manoj&rft.date=2016-11-01&rft.volume=96&rft.issue=&rft.spage=173&rft.isbn=&rft.btitle=&rft.title=Computers+%26+Geosciences&rft.issn=00983004&rft_id=info:doi/10.1016%2Fj.cageo.2016.08.015 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 in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Last updated - 2017-01-24 N1 - CODEN - GGEOD5 DO - http://dx.doi.org/10.1016/j.cageo.2016.08.015 ER - TY - JOUR T1 - Gravity field of the Orientale Basin from the Gravity Recovery and Interior Laboratory Mission AN - 1849308237; 2016-111046 AB - The Orientale basin is the youngest and best-preserved major impact structure on the Moon. We used the Gravity Recovery and Interior Laboratory (GRAIL) spacecraft to investigate the gravitational field of Orientale at 3- to 5-kilometer (km) horizontal resolution. A volume of at least (3.4 + or - 0.2) X 10 (super 6) km (super 3) of crustal material was removed and redistributed during basin formation. There is no preserved evidence of the transient crater that would reveal the basin's maximum volume, but its diameter may now be inferred to be between 320 and 460 km. The gravity field resolves distinctive structures of Orientale's three rings and suggests the presence of faults associated with the outer two that penetrate to the mantle. The crustal structure of Orientale provides constraints on the formation of multiring basins. JF - Science AU - Zuber, Maria T AU - Smith, David E AU - Neumann, Gregory A AU - Goossens, Sander AU - Andrews-Hanna, Jeffrey C AU - Head, James W AU - Kiefer, Walter S AU - Asmar, Sami W AU - Konopliv, Alexander S AU - Lemoine, Frank G AU - Matsuyama, Isamu AU - Melosh, H Jay AU - McGovern, Patrick J AU - Nimmo, Francis AU - Phillips, Roger J AU - Solomon, Sean C AU - Taylor, G Jeffrey AU - Watkins, Michael M AU - Wieczorek, Mark A AU - Williams, James G AU - Jansen, Johanna C AU - Johnson, Brandon C AU - Keane, James T AU - Mazarico, Erwan AU - Miljkovic, Katarina AU - Park, Ryan S AU - Soderblom, Jason M AU - Yuan, Dah-Ning Y1 - 2016/10/28/ PY - 2016 DA - 2016 Oct 28 SP - 438 EP - 441 PB - American Association for the Advancement of Science, Washington, DC VL - 354 IS - 6311 SN - 0036-8075, 0036-8075 KW - impact features KW - free-air anomalies KW - Moon KW - GRAIL Mission KW - mantle KW - mapping KW - melts KW - gravity anomalies KW - gravity field KW - lunar interior KW - lunar crust KW - Orientale Basin KW - thickness KW - Bouguer anomalies KW - impact craters KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849308237?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Gravity+field+of+the+Orientale+Basin+from+the+Gravity+Recovery+and+Interior+Laboratory+Mission&rft.au=Zuber%2C+Maria+T%3BSmith%2C+David+E%3BNeumann%2C+Gregory+A%3BGoossens%2C+Sander%3BAndrews-Hanna%2C+Jeffrey+C%3BHead%2C+James+W%3BKiefer%2C+Walter+S%3BAsmar%2C+Sami+W%3BKonopliv%2C+Alexander+S%3BLemoine%2C+Frank+G%3BMatsuyama%2C+Isamu%3BMelosh%2C+H+Jay%3BMcGovern%2C+Patrick+J%3BNimmo%2C+Francis%3BPhillips%2C+Roger+J%3BSolomon%2C+Sean+C%3BTaylor%2C+G+Jeffrey%3BWatkins%2C+Michael+M%3BWieczorek%2C+Mark+A%3BWilliams%2C+James+G%3BJansen%2C+Johanna+C%3BJohnson%2C+Brandon+C%3BKeane%2C+James+T%3BMazarico%2C+Erwan%3BMiljkovic%2C+Katarina%3BPark%2C+Ryan+S%3BSoderblom%2C+Jason+M%3BYuan%2C+Dah-Ning&rft.aulast=Zuber&rft.aufirst=Maria&rft.date=2016-10-28&rft.volume=354&rft.issue=6311&rft.spage=438&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.aag0519 L2 - http://www.sciencemag.org/magazine LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 40 N1 - PubXState - DC N1 - Document feature - illus. incl. sects., geol. sketch maps N1 - Last updated - 2016-12-16 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - Bouguer anomalies; free-air anomalies; GRAIL Mission; gravity anomalies; gravity field; impact craters; impact features; lunar crust; lunar interior; mantle; mapping; melts; Moon; Orientale Basin; remote sensing; thickness DO - http://dx.doi.org/10.1126/science.aag0519 ER - TY - JOUR T1 - The viscosity of planetary tholeiitic melts; a configurational entropy model AN - 1840615309; 2016-094166 AB - The viscosity (eta ) of silicate melts is a fundamental physical property controlling mass transfer in magmatic systems. Viscosity can span many orders of magnitude, strongly depending on temperature and composition. Several models are available that describe this dependency for terrestrial melts quite well. Planetary basaltic lavas however are distinctly different in composition, being dominantly alkali-poor, iron-rich and/or highly magnesian. We measured the viscosity of 20 anhydrous tholeiitic melts, of which 15 represent known or estimated surface compositions of Mars, Mercury, the Moon, Io and Vesta, by concentric cylinder and parallel plate viscometry. The planetary basalts span a viscosity range of 2 orders of magnitude at liquidus temperatures and 4 orders of magnitude near the glass transition, and can be more or less viscous than terrestrial lavas. We find that current models under- and overestimate superliquidus viscosities by up to 2 orders of magnitude for these compositions, and deviate even more strongly from measured viscosities toward the glass transition. We used the Adam-Gibbs theory (A-G) to relate viscosity (eta ) to absolute temperature (T) and the configurational entropy of the system at that temperature (S (super conf) ), which is in the form of logeta = A (sub e) +B (sub e) /TS (super conf) . Heat capacities (C (sub P) ) for glasses and liquids of our investigated compositions were calculated via available literature models. We show that the A-G theory is applicable to model the viscosity of individual complex tholeiitic melts containing 10 or more major oxides as well or better than the commonly used empirical equations. We successfully modeled the global viscosity data set using a constant A (sub e) of -3.34 + or - 0.22 log units and 12 adjustable sub-parameters, which capture the compositional and temperature dependence on melt viscosity. Seven sub-parameters account for the compositional dependence of B (sub e) and 5 for S (super conf) . Our model reproduces the 496 measured viscosity data points with a 1sigma root-mean-square deviation (rmsd) of 0.12 log units across 13 orders of measured melt viscosity. The model performed well in predicting the viscosity of lunar and martian melts not used in calibration, and should be used to calculate lava flow velocities and fluxes for anhydrous basaltic volcanism on other moons and planets. JF - Geochimica et Cosmochimica Acta AU - Sehlke, Alexander AU - Whittington, Alan G Y1 - 2016/10/15/ PY - 2016 DA - 2016 Oct 15 SP - 277 EP - 299 PB - Elsevier, New York, NY VL - 191 SN - 0016-7037, 0016-7037 KW - near-infrared spectra KW - tholeiitic basalt KW - volcanic rocks KW - asteroids KW - igneous rocks KW - entropy KW - calibration KW - melts KW - temperature KW - tholeiitic composition KW - movement KW - basalts KW - velocity KW - spectra KW - geochemistry KW - calorimetry KW - liquid phase KW - solar system KW - lava flows KW - Vesta Asteroid KW - Moon KW - silicate melts KW - Adam-Gibbs theory KW - prediction KW - cosmochemistry KW - maria KW - X-ray spectra KW - EDS spectra KW - models KW - planets KW - KREEP KW - viscosity KW - lava KW - magmas KW - mathematical methods KW - 04:Extraterrestrial geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840615309?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=The+viscosity+of+planetary+tholeiitic+melts%3B+a+configurational+entropy+model&rft.au=Sehlke%2C+Alexander%3BWhittington%2C+Alan+G&rft.aulast=Sehlke&rft.aufirst=Alexander&rft.date=2016-10-15&rft.volume=191&rft.issue=&rft.spage=277&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2016.07.027 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 90 N1 - PubXState - NY N1 - Document feature - illus. incl. 8 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-11-17 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - Adam-Gibbs theory; asteroids; basalts; calibration; calorimetry; cosmochemistry; EDS spectra; entropy; geochemistry; igneous rocks; KREEP; lava; lava flows; liquid phase; magmas; maria; mathematical methods; melts; models; Moon; movement; near-infrared spectra; planets; prediction; silicate melts; solar system; spectra; temperature; tholeiitic basalt; tholeiitic composition; velocity; Vesta Asteroid; viscosity; volcanic rocks; X-ray spectra DO - http://dx.doi.org/10.1016/j.gca.2016.07.027 ER - TY - JOUR T1 - Hydration state of calcium sulfates in Gale Crater, Mars; identification of bassanite veins AN - 1832727500; 2016-092729 AB - In-situ analyses reveal the presence of hydrogen within calcium sulfate veins crosscutting the sediments found in Gale crater. Laboratory experiments were performed to calibrate the hydrogen signal measured by laser induced breakdown spectroscopy (LIBS) in a range applicable to martian data. The analyses indicate that all veins targeted so far at Gale consist predominantly of bassanite which most likely formed by dehydration of gypsum. This scenario suggests that the percolating water produced gypsum, possibly by hydration of anhydrite in aqueous solution, and remained at temperatures below approximately 60 degrees C at that time. Desiccating conditions followed, consistent with a hyperarid climate and favored by burial or impacts. Additionally, anhydrite with lesser bassanite has been found by XRD in samples of sediments hosting the veins. Our result suggests bassanite is likely found in the veins and anhydrite may be more common as a fine-grained component within the sediments. JF - Earth and Planetary Science Letters AU - Rapin, William AU - Meslin, P Y AU - Maurice, S AU - Vaniman, D AU - Nachon, M AU - Mangold, N AU - Schroeder, S AU - Gasnault, O AU - Forni, O AU - Wiens, Roger C AU - Martinez, G M AU - Cousin, A AU - Sautter, Violaine AU - Lasue, J AU - Rampe, E B AU - Archer, D Y1 - 2016/10/15/ PY - 2016 DA - 2016 Oct 15 SP - 197 EP - 205 PB - Elsevier, Amsterdam VL - 452 SN - 0012-821X, 0012-821X KW - calcium sulfate KW - anhydrite KW - Mars KW - Hesperian KW - aqueous solutions KW - paleoclimatology KW - bassanite KW - burial KW - Gale Crater KW - emission spectra KW - laboratory studies KW - gypsum KW - LIBS spectra KW - percolation KW - spectra KW - water KW - hydrology KW - ChemCam instrument KW - experimental studies KW - sulfates KW - impacts KW - veins KW - depth KW - desiccation KW - terrestrial planets KW - planets KW - identification KW - hydrogen KW - dehydration KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832727500?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Hydration+state+of+calcium+sulfates+in+Gale+Crater%2C+Mars%3B+identification+of+bassanite+veins&rft.au=Rapin%2C+William%3BMeslin%2C+P+Y%3BMaurice%2C+S%3BVaniman%2C+D%3BNachon%2C+M%3BMangold%2C+N%3BSchroeder%2C+S%3BGasnault%2C+O%3BForni%2C+O%3BWiens%2C+Roger+C%3BMartinez%2C+G+M%3BCousin%2C+A%3BSautter%2C+Violaine%3BLasue%2C+J%3BRampe%2C+E+B%3BArcher%2C+D&rft.aulast=Rapin&rft.aufirst=William&rft.date=2016-10-15&rft.volume=452&rft.issue=&rft.spage=197&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2016.07.045 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 53 N1 - Document feature - illus. N1 - SuppNotes - Includes appendix N1 - Last updated - 2016-10-27 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - anhydrite; aqueous solutions; bassanite; burial; calcium sulfate; ChemCam instrument; dehydration; depth; desiccation; emission spectra; experimental studies; Gale Crater; gypsum; Hesperian; hydrogen; hydrology; identification; impacts; laboratory studies; LIBS spectra; Mars; paleoclimatology; percolation; planets; spectra; sulfates; terrestrial planets; veins; water DO - http://dx.doi.org/10.1016/j.epsl.2016.07.045 ER - TY - NEWS T1 - NASA Takes Next Step in Green Aviation X-planes Plans AN - 1829212767 JF - UPI Space Daily AU - Jim Banke for NASA Aeronautics News Y1 - 2016/10/15/ PY - 2016 DA - 2016 Oct 15 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1829212767?accountid=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+Takes+Next+Step+in+Green+Aviation+X-planes+Plans&rft.au=Jim+Banke+for+NASA+Aeronautics+News&rft.aulast=Jim+Banke+for+NASA+Aeronautics+News&rft.aufirst=&rft.date=2016-10-15&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 - 2016-10-15 ER - TY - JOUR T1 - Estimating Emissions of Toxic Hydrocarbons from Natural Gas Production Sites in the Barnett Shale Region of Northern Texas. AN - 1835358202; 27580823 AB - Oil and natural gas operations have continued to expand and move closer to densely populated areas, contributing to growing public concerns regarding exposure to hazardous air pollutants. During the Barnett Shale Coordinated Campaign in October, 2013, ground-based whole air samples collected downwind of oil and gas sites revealed enhancements in several potentially toxic volatile organic compounds (VOCs) when compared to background values. Molar emissions ratios relative to methane were determined for hexane, benzene, toluene, ethylbenzene, and xylene (BTEX compounds). Using methane leak rates measured from the Picarro mobile flux plane (MFP) system and a Barnett Shale regional methane emissions inventory, the rates of emission of these toxic gases were calculated. Benzene emissions ranged between 51 ± 4 and 60 ± 4 kg h-1. Hexane, the most abundantly emitted pollutant, ranged from 642 ± 45 to 1070 ± 340 kg h-1. While observed hydrocarbon enhancements fall below federal workplace standards, results may indicate a link between emissions from oil and natural gas operations and concerns about exposure to hazardous air pollutants. The larger public health risks associated with the production and distribution of natural gas are of particular importance and warrant further investigation, particularly as the use of natural gas increases in the United States and internationally. JF - Environmental science & technology AU - Marrero, Josette E AU - Townsend-Small, Amy AU - Lyon, David R AU - Tsai, Tracy R AU - Meinardi, Simone AU - Blake, Donald R AD - NASA Ames Research Center, Moffett Field, California 94035, United States. ; Departments of Geology and Geography, University of Cincinnati , Cincinnati, Ohio 45221, United States. ; Environmental Defense Fund, Austin, Texas 78701, United States. ; Picarro, Inc., Santa Clara, California 95054, United States. ; Department of Chemistry, University of California, Irvine , Irvine, California 92697, United States. Y1 - 2016/10/04/ PY - 2016 DA - 2016 Oct 04 SP - 10756 EP - 10764 VL - 50 IS - 19 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1835358202?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Estimating+Emissions+of+Toxic+Hydrocarbons+from+Natural+Gas+Production+Sites+in+the+Barnett+Shale+Region+of+Northern+Texas.&rft.au=Marrero%2C+Josette+E%3BTownsend-Small%2C+Amy%3BLyon%2C+David+R%3BTsai%2C+Tracy+R%3BMeinardi%2C+Simone%3BBlake%2C+Donald+R&rft.aulast=Marrero&rft.aufirst=Josette&rft.date=2016-10-04&rft.volume=50&rft.issue=19&rft.spage=10756&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=1520-5851&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date created - 2016-09-15 N1 - Date revised - 2017-01-14 N1 - Last updated - 2017-01-19 ER - TY - JOUR T1 - Major and trace element analysis of natural and experimental igneous systems using LA-ICP-MS AN - 1861113018; 788246-4 JF - Elements AU - Jenner, Frances E AU - Arevalo, Ricardo D, Jr Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 311 EP - 316 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 - 12 IS - 5 SN - 1811-5209, 1811-5209 KW - methods KW - silicate glass KW - inductively coupled plasma methods KW - volcanic rocks KW - laser methods KW - glasses KW - isotopes KW - igneous rocks KW - calibration KW - melt inclusions KW - whole rock KW - major elements KW - inclusions KW - applications KW - trace elements KW - experimental studies KW - chemical analysis KW - laser ablation KW - mass spectroscopy KW - LA-ICP-MS KW - laser-induced element fractionation KW - laser ablation inductively coupled plasma mass spectroscopy KW - matrix matching KW - interference KW - fluid inclusions KW - spectroscopy KW - 05A:Igneous and metamorphic petrology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861113018?accountid=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=Elements&rft.atitle=Major+and+trace+element+analysis+of+natural+and+experimental+igneous+systems+using+LA-ICP-MS&rft.au=Jenner%2C+Frances+E%3BArevalo%2C+Ricardo+D%2C+Jr&rft.aulast=Jenner&rft.aufirst=Frances&rft.date=2016-10-01&rft.volume=12&rft.issue=5&rft.spage=311&rft.isbn=&rft.btitle=&rft.title=Elements&rft.issn=18115209&rft_id=info:doi/10.2113%2Fgselements.12.5.311 L2 - http://www.elementsmagazine.org/ 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. N1 - Number of references - 30 N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - applications; calibration; chemical analysis; experimental studies; fluid inclusions; glasses; igneous rocks; inclusions; inductively coupled plasma methods; interference; isotopes; LA-ICP-MS; laser ablation; laser ablation inductively coupled plasma mass spectroscopy; laser methods; laser-induced element fractionation; major elements; mass spectroscopy; matrix matching; melt inclusions; methods; silicate glass; spectroscopy; trace elements; volcanic rocks; whole rock DO - http://dx.doi.org/10.2113/gselements.12.5.311 ER - TY - JOUR T1 - Thoughts and reminiscences on experimental trace element partitioning AN - 1859790103; 2017-006320 JF - Geochemical Perspectives AU - Jones, John H Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 148 EP - 251 PB - European Association of Geochemistry, Paris VL - 5 IS - 2 SN - 2223-7755, 2223-7755 KW - silicates KW - liquid phase KW - experimental studies KW - silicate melts KW - platinum group KW - melts KW - temperature KW - solid phase KW - partitioning KW - volatiles KW - platinum KW - metals KW - core KW - trace metals KW - trace elements KW - high temperature KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859790103?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochemical+Perspectives&rft.atitle=Thoughts+and+reminiscences+on+experimental+trace+element+partitioning&rft.au=Jones%2C+John+H&rft.aulast=Jones&rft.aufirst=John&rft.date=2016-10-01&rft.volume=5&rft.issue=2&rft.spage=148&rft.isbn=&rft.btitle=&rft.title=Geochemical+Perspectives&rft.issn=22237755&rft_id=info:doi/ L2 - http://www.geochemicalperspectives.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2017-01-01 N1 - Document feature - illus. N1 - Last updated - 2017-01-19 N1 - SubjectsTermNotLitGenreText - core; experimental studies; high temperature; liquid phase; melts; metals; partitioning; platinum; platinum group; silicate melts; silicates; solid phase; temperature; trace elements; trace metals; volatiles ER - TY - JOUR T1 - Forecasting Arabian Sea level rise using exponential smoothing state space models and ARIMA from TOPEX and Jason satellite radar altimeter data AN - 1855081816; PQ0003958804 AB - Sea level rise is a threat to coastal habitation and is corroborating evidence for global warming. The present study investigated the combined use of quantitative forecasting methods for sea level rise using exponential smoothing state space models (ESMs) and an autoregressive integrated moving average (ARIMA) model fed with sea level data over 17 years (1994-2010). Two levels of ESMs were employed: double (model levels with trend) and triple (model levels, trend and seasonal decomposition). The overall data analysis revealed the better performance of ARIMA in terms of index of agreement ( d = 0.79), root-mean-square error (RMSE = 32.8 mm) and mean absolute error (MAE = 25.55 mm) than the triple ESM ( d = 0.76; RMSE = 39.86 mm; MAE = 35.02 mm) and double ESM ( d = 0.14; RMSE = 52.71 mm; MAE = 45.99 mm) models. The present study results suggest that the rate of Arabian Sea level rise is high, and if this is not taken into consideration many coastal areas may become subject to climate-change-induced habitat loss in future. JF - Meteorological Applications AU - Srivastava, Prashant K AU - Islam, Tanvir AU - Singh, Sudhir K AU - Petropoulos, George P AU - Gupta, Manika AU - Dai, Qiang AD - Hydrological Sciences, NASA Goddard Space Flight Center, Greenbelt, MD, USA. Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 633 EP - 639 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 23 IS - 4 SN - 1350-4827, 1350-4827 KW - Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1855081816?accountid=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=Forecasting+Arabian+Sea+level+rise+using+exponential+smoothing+state+space+models+and+ARIMA+from+TOPEX+and+Jason+satellite+radar+altimeter+data&rft.au=Srivastava%2C+Prashant+K%3BIslam%2C+Tanvir%3BSingh%2C+Sudhir+K%3BPetropoulos%2C+George+P%3BGupta%2C+Manika%3BDai%2C+Qiang&rft.aulast=Srivastava&rft.aufirst=Prashant&rft.date=2016-10-01&rft.volume=23&rft.issue=4&rft.spage=633&rft.isbn=&rft.btitle=&rft.title=Meteorological+Applications&rft.issn=13504827&rft_id=info:doi/10.1002%2Fmet.1585 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2017-01-01 N1 - Last updated - 2017-01-04 DO - http://dx.doi.org/10.1002/met.1585 ER - TY - JOUR T1 - Operational hydrological forecasting during the IPHEx-IOP campaign; meet the challenge AN - 1840619555; 2016-094344 AB - An operational streamflow forecasting testbed was implemented during the Intense Observing Period (IOP) of the Integrated Precipitation and Hydrology Experiment (IPHEx-IOP) in May-June 2014 to characterize flood predictability in complex terrain. Specifically, hydrological forecasts were issued daily for 12 headwater catchments in the Southern Appalachians using the Duke Coupled surface-groundwater Hydrology Model (DCHM) forced by hourly atmospheric fields and QPFs (Quantitative Precipitation Forecasts) produced by the NASA-Unified Weather Research and Forecasting (NU-WRF) model. Previous day hindcasts forced by radar-based QPEs (Quantitative Precipitation Estimates) were used to provide initial conditions for present day forecasts. This manuscript first describes the operational testbed framework and workflow during the IPHEx-IOP including a synthesis of results. Second, various data assimilation approaches are explored a posteriori (post-IOP) to improve operational (flash) flood forecasting. Although all flood events during the IOP were predicted by the IPHEx operational testbed with lead times of up to 6 h, significant errors of over- and, or under-prediction were identified that could be traced back to the QPFs and subgrid-scale variability of radar QPEs. To improve operational flood prediction, three data-merging strategies were pursued post-IOP: (1) the spatial patterns of QPFs were improved through assimilation of satellite-based microwave radiances into NU-WRF; (2) QPEs were improved by merging raingauge observations with ground-based radar observations using bias-correction methods to produce streamflow hindcasts and associated uncertainty envelope capturing the streamflow observations, and (3) river discharge observations were assimilated into the DCHM to improve streamflow forecasts using the Ensemble Kalman Filter (EnKF), the fixed-lag Ensemble Kalman Smoother (EnKS), and the Asynchronous EnKF (i.e. AEnKF) methods. Both flood hindcasts and forecasts were significantly improved by assimilating discharge observations into the DCHM. Specifically, Nash-Sutcliff Efficiency (NSE) values as high as 0.98, 0.71 and 0.99 at 15-min time-scales were attained for three headwater catchments in the inner mountain region demonstrating that the assimilation of discharge observations at the basin's outlet can reduce the errors and uncertainties in soil moisture at very small scales. Success in operational flood forecasting at lead times of 6, 9, 12 and 15 h was also achieved through discharge assimilation with NSEs of 0.87, 0.78, 0.72 and 0.51, respectively. Analysis of experiments using various data assimilation system configurations indicates that the optimal assimilation time window depends both on basin properties and storm-specific space-time-structure of rainfall, and therefore adaptive, context-aware configurations of the data assimilation system are recommended to address the challenges of flood prediction in headwater basins. JF - Journal of Hydrology AU - Tao, Jing AU - Wu, Di AU - Gourley, Jonathan J AU - Zhang, Sara Q AU - Crow, Wade AU - Peters-Lidard, Christa AU - Barros, Ana P Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 434 EP - 456 PB - Elsevier, Amsterdam VL - 541 IS - Part A SN - 0022-1694, 0022-1694 KW - United States KW - geologic hazards KW - rivers and streams KW - Appalachians KW - Yadkin Basin KW - quantitative analysis KW - intense observing period KW - Broad Basin KW - floods KW - drainage basins KW - discharge KW - Pigeon Basin KW - hydrology KW - North America KW - risk management KW - rainfall KW - statistical analysis KW - Kalman filters KW - IPHEX KW - prediction KW - models KW - Southern Appalachians KW - streamflow KW - Duke coupled surface-groundwater hydrology model KW - runoff KW - North Carolina KW - natural hazards KW - corrections KW - Integrated Precipitation and Hydrology Experiment KW - Catawba Basin KW - French Broad Basin KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840619555?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Operational+hydrological+forecasting+during+the+IPHEx-IOP+campaign%3B+meet+the+challenge&rft.au=Tao%2C+Jing%3BWu%2C+Di%3BGourley%2C+Jonathan+J%3BZhang%2C+Sara+Q%3BCrow%2C+Wade%3BPeters-Lidard%2C+Christa%3BBarros%2C+Ana+P&rft.aulast=Tao&rft.aufirst=Jing&rft.date=2016-10-01&rft.volume=541&rft.issue=Part+A&rft.spage=434&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology&rft.issn=00221694&rft_id=info:doi/10.1016%2Fj.jhydrol.2016.02.019 L2 - http://www.sciencedirect.com/science/journal/00221694 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 153 N1 - Document feature - illus. incl. 4 tables, sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-11-17 N1 - CODEN - JHYDA7 N1 - SubjectsTermNotLitGenreText - Appalachians; Broad Basin; Catawba Basin; corrections; discharge; drainage basins; Duke coupled surface-groundwater hydrology model; floods; French Broad Basin; geologic hazards; hydrology; Integrated Precipitation and Hydrology Experiment; intense observing period; IPHEX; Kalman filters; models; natural hazards; North America; North Carolina; Pigeon Basin; prediction; quantitative analysis; rainfall; risk management; rivers and streams; runoff; Southern Appalachians; statistical analysis; streamflow; United States; Yadkin Basin DO - http://dx.doi.org/10.1016/j.jhydrol.2016.02.019 ER - TY - JOUR T1 - Heterogeneous histories of Ni-bearing pyrrhotite and pentlandite grains in the CI chondrites Orgueil and Alais AN - 1840619426; 2016-096676 AB - Compositional and structural analyses of CI chondrite iron-nickel sulfide grains reveal heterogeneity both across and within the Orgueil and Alais meteorites. Orgueil grains with the 4C monoclinic pyrrhotite structure have variable metal-to-sulfur ratios and nickel contents. These range from the nominal ratio of 0.875 for Fe (sub 7) S (sub 8) with <1 atom% nickel to a high metal-to-sulfur ratio of 0.97 with 15 atom% nickel. These data reveal a previously unrecognized low-temperature solid solution between Fe (sub 7) S (sub 8) and Fe (sub 5) Ni (sub 3) S (sub 8) . We have also identified 6C monoclinic pyrrhotite among the Orgueil iron-nickel sulfides. The occurrence of pentlandite in Orgueil is confirmed for the first time crystallographically. In contrast, sulfide grains in Alais do not show the same spread in composition and structure; rather they represent the endmembers: low-Ni 4C monoclinic pyrrhotite and pentlandite. We investigate possible formation/alteration scenarios: crystallization from a melt, solid-state diffusion and/or exsolution, oxidation of pre-existing sulfides, and precipitation from a fluid. Sulfide grains are sensitive to alteration conditions; these data suggest that the structures and compositions of the sulfide assemblages in Orgueil and Alais were established by late-stage parent body aqueous alteration, followed in some cases by low-temperature solid-state processes. The samples record different alteration histories, with Orgueil experiencing lower equilibration temperatures (25 degrees C) than Alais (100-135 degrees C). We conclude that millimeter-scale heterogeneity existed in alteration conditions (e.g., temperature, pH, oxygen fugacity, sulfur fugacity, duration of alteration) on the parent body. This variability is evidenced by the diversity among sulfide grains located within millimeters of one another. Abstract Copyright The Meteoritical Society, 2016. JF - Meteoritics & Planetary Science AU - Berger, Eve L AU - Lauretta, Dante S AU - Zega, Thomas J AU - Keller, Lindsay P Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 1813 EP - 1829 PB - Meteoritical Society, Fayetteville, AR VL - 51 IS - 10 SN - 1086-9379, 1086-9379 KW - CI chondrites KW - diffusion KW - stony meteorites KW - Orgueil Meteorite KW - crystal systems KW - pentlandite KW - parent bodies KW - electron microscopy data KW - carbonaceous chondrites KW - Alais Meteorite KW - TEM data KW - temperature KW - electron probe data KW - aqueous alteration KW - meteorites KW - metals KW - nickel KW - monoclinic system KW - heterogeneity KW - chondrites KW - chemical composition KW - sulfides KW - pyrrhotite KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840619426?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+histories+of+Ni-bearing+pyrrhotite+and+pentlandite+grains+in+the+CI+chondrites+Orgueil+and+Alais&rft.au=Berger%2C+Eve+L%3BLauretta%2C+Dante+S%3BZega%2C+Thomas+J%3BKeller%2C+Lindsay+P&rft.aulast=Berger&rft.aufirst=Eve&rft.date=2016-10-01&rft.volume=51&rft.issue=10&rft.spage=1813&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12721 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 81 N1 - PubXState - AR N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-11-17 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - Alais Meteorite; aqueous alteration; carbonaceous chondrites; chemical composition; chondrites; CI chondrites; crystal systems; diffusion; electron microscopy data; electron probe data; heterogeneity; metals; meteorites; monoclinic system; nickel; Orgueil Meteorite; parent bodies; pentlandite; pyrrhotite; stony meteorites; sulfides; TEM data; temperature DO - http://dx.doi.org/10.1111/maps.12721 ER - TY - JOUR T1 - Silicic lunar volcanism; testing the crustal melting model AN - 1840618950; 2016-096614 AB - Lunar silicic rocks were first identified by granitic fragments found in samples brought to Earth by the Apollo missions, followed by the discovery of silicic domes on the lunar surface through remote sensing. Although these silicic lithologies are thought to make up a small portion of the lunar crust, their presence indicates that lunar crustal evolution is more complex than originally thought. Models currently used to describe the formation of silicic lithologies on the Moon include in situ differentiation of a magma, magma differentiation with silicate liquid immiscibility, and partial melting of the crust. This study focuses on testing a crustal melting model through partial melting experiments on compositions representing lithologies spatially associated with the silicic domes. The experiments were guided by the results of modeling melting temperatures and residual melt compositions of possible protoliths for lunar silicic rocks using the thermodynamic modeling software, rhyolite-MELTS. Rhyolite-MELTS simulations predict liquidus temperatures of 950-1040 degrees C for lunar granites under anhydrous conditions, which guided the temperature range for the experiments. Monzogabbro, alkali gabbronorite, and KREEP basalt were identified as potential protoliths due to their ages, locations on the Moon (i.e., located near observed silicic domes), chemically evolved compositions, and the results from rhyolite-MELTS modeling. Partial melting experiments, using mixtures of reagent grade oxide powders representing bulk rock compositions of these rock types, were carried out at atmospheric pressure over the temperature range of 900-1100 degrees C. Because all lunar granite samples and remotely sensed domes have an elevated abundance of Th, some of the mixtures were doped with Th to observe its partitioning behavior. Run products show that at temperatures of 1050 and 1100 degrees C, melts of the three protoliths are not silicic in nature (i.e., they have or = 0.005 GPa), the observed immiscibility in the partial melting experiments would be suppressed. JF - American Mineralogist AU - Gullikson, Amber L AU - Hagerty, Justin J AU - Reid, Mary R AU - Rapp, Jennifer F AU - Draper, David S Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 2312 EP - 2321 PB - Mineralogical Society of America, Washington, DC VL - 101 IS - 10 SN - 0003-004X, 0003-004X KW - rhyolitic composition KW - igneous rocks KW - partial melting KW - data processing KW - Apollo Program KW - granitic composition KW - melts KW - temperature KW - plutonic rocks KW - melting KW - volcanism KW - MELTS Program KW - norite KW - liquid phase KW - experimental studies KW - Moon KW - silicate melts KW - magmatism KW - felsic composition KW - computer programs KW - lunar samples KW - immiscibility KW - lunar crust KW - theoretical models KW - gabbros KW - high temperature KW - 04:Extraterrestrial geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840618950?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Silicic+lunar+volcanism%3B+testing+the+crustal+melting+model&rft.au=Gullikson%2C+Amber+L%3BHagerty%2C+Justin+J%3BReid%2C+Mary+R%3BRapp%2C+Jennifer+F%3BDraper%2C+David+S&rft.aulast=Gullikson&rft.aufirst=Amber&rft.date=2016-10-01&rft.volume=101&rft.issue=10&rft.spage=2312&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam-2016-5619 L2 - http://www.minsocam.org/MSA/AmMin/TOC/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 68 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-11-17 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - Apollo Program; computer programs; data processing; experimental studies; felsic composition; gabbros; granitic composition; high temperature; igneous rocks; immiscibility; liquid phase; lunar crust; lunar samples; magmatism; melting; melts; MELTS Program; Moon; norite; partial melting; plutonic rocks; rhyolitic composition; silicate melts; temperature; theoretical models; volcanism DO - http://dx.doi.org/10.2138/am-2016-5619 ER - TY - JOUR T1 - Constraining the sulfur dioxide degassing flux from Turrialba Volcano, Costa Rica using unmanned aerial system measurements AN - 1840615502; 2016-098878 AB - Observed sulfur dioxide (SO (sub 2) ) mixing ratios onboard unmanned aerial systems (UAS) during March 11-13, 2013 are used to constrain the three-day averaged SO (sub 2) degassing flux from Turrialba volcano within a Bayesian inverse modeling framework. A mesoscale model coupled with Lagrangian stochastic particle backward trajectories is used to quantify the source-receptor relationships at very high spatial resolutions (i.e., < 1 km). The model shows better performance in reproducing the near-surface meteorological properties and observed SO (sub 2) variations when using a first-order closure non-local planetary boundary layer (PBL) scheme. The optimized SO (sub 2) degassing fluxes vary from 0.59 + or - 0.37 to 0.83 + or - 0.33 kt d (super -1) depending on the PBL scheme used. These fluxes are in good agreement with ground-based gas flux measurements, and correspond to corrective scale factors of 8-12 to the posteruptive SO (sub 2) degassing rate in the AeroCom emission inventory. The maximum a posteriori solution for the SO (sub 2) flux is highly sensitive to the specification of prior and observational errors, and relatively insensitive to the SO (sub 2) loss term and temporal averaging of observations. Our results indicate relatively low degassing activity but sustained sulfur emissions from Turrialba volcano to the troposphere during March 2013. This study demonstrates the utility of low-cost small UAS platforms for volcanic gas composition and flux analysis. JF - Journal of Volcanology and Geothermal Research AU - Xi, Xin AU - Johnson, Matthew S AU - Jeong, Seongeun AU - Fladeland, Matthew AU - Pieri, David AU - Diaz, Jorge Andres AU - Bland, Geoffrey L Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 110 EP - 118 PB - Elsevier, Amsterdam VL - 325 SN - 0377-0273, 0377-0273 KW - sulfur dioxide KW - Turrialba KW - Costa Rica KW - trajectories KW - atmosphere KW - troposphere KW - measurement KW - gases KW - models KW - unmanned aerial systems KW - errors KW - transport KW - sensitivity analysis KW - mixing KW - eruptions KW - geochemical methods KW - volcanoes KW - sulfur KW - Central America KW - boundary layer KW - airborne methods KW - 24:Quaternary geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840615502?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Volcanology+and+Geothermal+Research&rft.atitle=Constraining+the+sulfur+dioxide+degassing+flux+from+Turrialba+Volcano%2C+Costa+Rica+using+unmanned+aerial+system+measurements&rft.au=Xi%2C+Xin%3BJohnson%2C+Matthew+S%3BJeong%2C+Seongeun%3BFladeland%2C+Matthew%3BPieri%2C+David%3BDiaz%2C+Jorge+Andres%3BBland%2C+Geoffrey+L&rft.aulast=Xi&rft.aufirst=Xin&rft.date=2016-10-01&rft.volume=325&rft.issue=&rft.spage=110&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2Fj.jvolgeores.2016.06.023 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 45 N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - Last updated - 2016-11-17 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - airborne methods; atmosphere; boundary layer; Central America; Costa Rica; errors; eruptions; gases; geochemical methods; measurement; mixing; models; sensitivity analysis; sulfur; sulfur dioxide; trajectories; transport; troposphere; Turrialba; unmanned aerial systems; volcanoes DO - http://dx.doi.org/10.1016/j.jvolgeores.2016.06.023 ER - TY - JOUR T1 - Silicon isotope fractionation during microbial reduction of Fe(III)-Si gels under Archean sea water conditions and implications for iron formation genesis AN - 1840615399; 2016-094231 AB - Microbial dissimilatory iron reduction (DIR) is a deeply rooted metabolism in the Bacteria and Archaea. In the Archean and Proterozoic, the most likely electron acceptor for DIR in marine environments was Fe(III)-Si gels. It has been recently suggested that the Fe and Si cycles were coupled through sorption of aqueous Si to iron oxides/hydroxides, and through release of Si during DIR. Evidence for the close association of the Fe and Si cycles comes from banded iron formations (BIFs), which consist of alternating bands of Fe-bearing minerals and quartz (chert). Although there has been extensive study of the stable Fe isotope fractionations produced by DIR of Fe(III)-Si gels, as well as studies of stable Fe isotope fractionations in analogous abiologic systems, no studies to date have investigated stable Si isotope fractionations produced by DIR. In this study, the stable Si isotope fractionations produced by microbial reduction of Fe(III)-Si gels were investigated in simulated artificial Archean seawater (AAS), using the marine iron-reducing bacterium Desulfuromonas acetoxidans. Microbial reduction produced very large (super 30) Si/ (super 28) Si isotope fractionations between the solid and aqueous phase at approximately 23 degrees C, where Delta (super 30) Si (sub solid-aqueous) isotope fractionations of -3.35 + or - 0.16 ppm and -3.46 + or - 0.09 ppm were produced in two replicate experiments at 32% Fe(III) reduction (solid-phase Fe(II)/Fe (sub Total) = 0.32). This isotopic fractionation was substantially greater than that observed in two abiologic controls that had solid-phase Fe(II)/Fe (sub Total) = 0.02-0.03, which produced Delta (super 30) Si (sub solid-aqueous) isotope fractionations of -2.83 + or - 0.24 ppm and -2.65 + or - 0.28 ppm. In a companion study, the equilibrium Delta (super 30) Si (sub solid-aqueous) isotope fractionation was determined to be -2.3 ppm for solid-phase Fe(II)/Fe (sub Total) = 0. Collectively, these results highlight the importance of Fe(II) in Fe-Si gels in producing large changes in Si isotope fractionations. These results suggest that DIR should produce highly negative delta (super 30) Si values in quartz that is the product of diagenetic reactions associated with Fe-Si gels. Such Si isotope compositions would be expected to be associated with Fe-bearing minerals that contain Fe(II), indicative of reduction, such as magnetite. Support for this model comes from recent in situ Si isotope studies of oxide-facies BIFs, where quartz in magnetite-rich samples have significantly more negative delta (super 30) Si values than quartz in hematite-rich samples. JF - Geochimica et Cosmochimica Acta AU - Reddy, Thiruchelvi R AU - Zheng, Xin-Yuan AU - Roden, Eric E AU - Beard, Brian L AU - Johnson, Clark M Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 85 EP - 99 PB - Elsevier, New York, NY VL - 190 SN - 0016-7037, 0016-7037 KW - isotope fractionation KW - sea water KW - upper Precambrian KW - Archaea KW - X-ray diffraction data KW - isotopes KW - banded iron formations KW - sedimentary basins KW - silicon KW - stable isotopes KW - gels KW - paleoecology KW - sedimentary rocks KW - chemical reactions KW - basins KW - Archean KW - reduction KW - depositional environment KW - experimental studies KW - colloidal materials KW - chemically precipitated rocks KW - Precambrian KW - metabolism KW - isotope ratios KW - biochemistry KW - statistical analysis KW - Proterozoic KW - electron microscopy data KW - basin analysis KW - TEM data KW - biogenic processes KW - paleoenvironment KW - iron formations KW - marine environment KW - mathematical methods KW - bacteria KW - Si-30/Si-28 KW - SEM data KW - backscattering KW - 06A:Sedimentary petrology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840615399?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Silicon+isotope+fractionation+during+microbial+reduction+of+Fe%28III%29-Si+gels+under+Archean+sea+water+conditions+and+implications+for+iron+formation+genesis&rft.au=Reddy%2C+Thiruchelvi+R%3BZheng%2C+Xin-Yuan%3BRoden%2C+Eric+E%3BBeard%2C+Brian+L%3BJohnson%2C+Clark+M&rft.aulast=Reddy&rft.aufirst=Thiruchelvi&rft.date=2016-10-01&rft.volume=190&rft.issue=&rft.spage=85&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2016.06.035 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 83 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-11-17 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - Archaea; Archean; backscattering; bacteria; banded iron formations; basin analysis; basins; biochemistry; biogenic processes; chemical reactions; chemically precipitated rocks; colloidal materials; depositional environment; electron microscopy data; experimental studies; gels; iron formations; isotope fractionation; isotope ratios; isotopes; marine environment; mathematical methods; metabolism; paleoecology; paleoenvironment; Precambrian; Proterozoic; reduction; sea water; sedimentary basins; sedimentary rocks; SEM data; Si-30/Si-28; silicon; stable isotopes; statistical analysis; TEM data; upper Precambrian; X-ray diffraction data DO - http://dx.doi.org/10.1016/j.gca.2016.06.035 ER - TY - JOUR T1 - Horizontal and vertical velocities derived from the IDS contribution to ITRF2014, and comparisons with geophysical models AN - 1832622326; 784012-15 AB - In the context of the 2014 realization of the International Terrestrial Reference Frame, the International DORIS (Doppler Orbitography Radiopositioning Integrated by Satellite) Service (IDS) has delivered to the IERS a set of 1140 weekly SINEX files including station coordinates and Earth orientation parameters, covering the time period from 1993.0 to 2015.0. From this set of weekly SINEX files, the IDS combination centre estimated a cumulative DORIS position and velocity solution to obtain mean horizontal and vertical motion of 160 stations at 71 DORIS sites. The main objective of this study is to validate the velocities of the DORIS sites by comparison with external models or time-series. Horizontal velocities are compared with two recent global plate models (GEODVEL 2010 and NNR-MORVEL56). Prior to the comparisons, DORIS horizontal velocities were corrected for Global Isostatic Adjustment from the ICE-6G (VM5a) model. For more than half of the sites, the DORIS horizontal velocities differ from the global plate models by less than 2-3 mm yr (super -1) . For five of the sites (Arequipa, Dionysos/Gavdos, Manila and Santiago) with horizontal velocity differences with respect to these models larger than 10 mm yr-1, comparisons with GNSS estimates show the veracity of the DORIS motions. Vertical motions from the DORIS cumulative solution are compared with the vertical velocities derived from the latest GPS cumulative solution over the time span 1995.0-2014.0 from the University of La Rochelle solution at 31 co-located DORIS-GPS sites. These two sets of vertical velocities show a correlation coefficient of 0.83. Vertical differences are larger than 2 mm yr (super -1) at 23 percent of the sites. At Thule, the disagreement is explained by fine-tuned DORIS discontinuities in line with the mass variations of outlet glaciers. Furthermore, the time evolution of the vertical time-series from the DORIS station in Thule show similar trends to the GRACE equivalent water height. JF - Geophysical Journal International AU - Moreaux, G AU - Lemoine, F G AU - Argus, D F AU - Santamaria-Gomez, A AU - Willis, P AU - Soudarin, L AU - Gravelle, M AU - Ferrage, P Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 209 EP - 227 PB - Oxford University Press on behalf of The Royal Astronomical Society, the Deutsche Geophysikalische Gesellschaft and the European Geophysical Society VL - 207 IS - 1 SN - 0956-540X, 0956-540X KW - vertical movements KW - International DORIS Service KW - DORIS KW - global KW - geophysical methods KW - International Terrestrial Reference Frame KW - geodesy KW - satellite methods KW - models KW - isostasy KW - motions KW - plates KW - plate tectonics KW - horizontal movements KW - velocity KW - remote sensing KW - Doppler Orbitography Radiopositioning Integrated by Satellite KW - 18:Solid-earth geophysics KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832622326?accountid=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=Geophysical+Journal+International&rft.atitle=Horizontal+and+vertical+velocities+derived+from+the+IDS+contribution+to+ITRF2014%2C+and+comparisons+with+geophysical+models&rft.au=Moreaux%2C+G%3BLemoine%2C+F+G%3BArgus%2C+D+F%3BSantamaria-Gomez%2C+A%3BWillis%2C+P%3BSoudarin%2C+L%3BGravelle%2C+M%3BFerrage%2C+P&rft.aulast=Moreaux&rft.aufirst=G&rft.date=2016-10-01&rft.volume=207&rft.issue=1&rft.spage=209&rft.isbn=&rft.btitle=&rft.title=Geophysical+Journal+International&rft.issn=0956540X&rft_id=info:doi/ L2 - http://gji.oxfordjournals.org/content/207/1/209.abstract http://www.blackwellpublishing.com/journal.asp?ref=0956-540X 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. N1 - Number of references - 45 N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - Doppler Orbitography Radiopositioning Integrated by Satellite; DORIS; geodesy; geophysical methods; global; horizontal movements; International DORIS Service; International Terrestrial Reference Frame; isostasy; models; motions; plate tectonics; plates; remote sensing; satellite methods; velocity; vertical movements ER - TY - JOUR T1 - Ruxolitinib therapy and telomere length in myelofibrosis AN - 1831858492 JF - Blood Cancer Journal AU - Caocci, G AU - Greco, M AU - Delogu, G AU - Secchi, C AU - Perra, A AU - Ghiani, S AU - Orru, F AU - Vacca, A AU - Galimi, F AU - La Nasa, G Y1 - 2016/10// PY - 2016 DA - Oct 2016 SP - 2 CY - London PB - Nature Publishing Group VL - 6 IS - 10 KW - Medical Sciences--Hematology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1831858492?accountid=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=Blood+Cancer+Journal&rft.atitle=Ruxolitinib+therapy+and+telomere+length+in+myelofibrosis&rft.au=Caocci%2C+G%3BGreco%2C+M%3BDelogu%2C+G%3BSecchi%2C+C%3BPerra%2C+A%3BGhiani%2C+S%3BOrru%2C+F%3BVacca%2C+A%3BGalimi%2C+F%3BLa+Nasa%2C+G&rft.aulast=Caocci&rft.aufirst=G&rft.date=2016-10-01&rft.volume=6&rft.issue=10&rft.spage=e479&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright Nature Publishing Group Oct 2016 N1 - Last updated - 2016-11-02 DO - http://dx.doi.org/10.1038/bcj.2016.91 ER - TY - JOUR T1 - Titan's organic aerosols; molecular composition and structure of laboratory analogues inferred from pyrolysis gas chromatography mass spectrometry analysis AN - 1824212659; 2016-081537 AB - Analogues of Titan's aerosols are of primary interest in the understanding of Titan's atmospheric chemistry and climate, and in the development of in situ instrumentation for future space missions. Numerous studies have been carried out to characterize laboratory analogues of Titan aerosols (tholins), but their molecular composition and structure are still poorly known. If pyrolysis gas chromatography mass spectrometry (pyr-GCMS) has been used for years to give clues about their chemical composition, highly disparate results were obtained with this technique. They can be attributed to the variety of analytical conditions used for pyr-GCMS analyses, and/or to differences in the nature of the analogues analyzed, that were produced with different laboratory set-ups under various operating conditions. In order to have a better description of Titan's tholin's molecular composition by pyr-GCMS, we carried out a systematic study with two major objectives: (i) exploring the pyr-GCMS analytical parameters to find the optimal ones for the detection of a wide range of chemical products allowing a characterization of the tholins composition as comprehensive as possible, and (ii) highlighting the role of the CH (sub 4) ratio in the gaseous reactive medium on the tholin's molecular structure. We used a radio-frequency plasma discharge to synthetize tholins with different concentrations of CH (sub 4) diluted in N (sub 2) . The samples were pyrolyzed at temperatures covering the 200-700 degrees C range. The extracted gases were then analyzed by GCMS for their molecular identification. The optimal pyrolysis temperature for characterizing the molecular composition of our tholins by GCMS analysis is found to be 600 degrees C. This temperature choice results from the best compromise between the number of compounds released, the quality of the signal and the appearance of pyrolysis artifacts. About a hundred molecules are identified as pyrolysates. A common major chromatographic pattern appears clearly for all the samples even if the number of released compounds can significantly differ. The hydrocarbon chain content increases in tholins when the CH (sub 4) ratio increases. A semi-quantitative study of the nitriles (most abundant chemical family in our chromatograms) released during the pyrolysis shows the existence of a correlation between the amount of a nitrile released and its molecular mass, similarly to the previous quantification of nitriles in the plasma gas-phase. Moreover, numerous nitriles are present both in tholins and in the gas phase, confirming their suspected role in the gas phase as precursors of the solid organic particles. JF - Icarus AU - Morisson, Marietta AU - Szopa, Cyril AU - Carrasco, Nathalie AU - Buch, Arnaud AU - Gautier, Thomas Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 442 EP - 454 PB - Elsevier, New York, NY VL - 277 SN - 0019-1035, 0019-1035 KW - tholins KW - icy satellites KW - experimental studies KW - methane KW - gas chromatograms KW - aliphatic hydrocarbons KW - mass spectra KW - alkanes KW - temperature KW - nitrogen KW - gases KW - molecular structure KW - laboratory studies KW - organic compounds KW - pyrolysis KW - chromatograms KW - hydrocarbons KW - composition KW - Titan Satellite KW - aerosols KW - spectra KW - synthesis KW - satellites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824212659?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Titan%27s+organic+aerosols%3B+molecular+composition+and+structure+of+laboratory+analogues+inferred+from+pyrolysis+gas+chromatography+mass+spectrometry+analysis&rft.au=Morisson%2C+Marietta%3BSzopa%2C+Cyril%3BCarrasco%2C+Nathalie%3BBuch%2C+Arnaud%3BGautier%2C+Thomas&rft.aulast=Morisson&rft.aufirst=Marietta&rft.date=2016-10-01&rft.volume=277&rft.issue=&rft.spage=442&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.05.038 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 56 N1 - PubXState - NY N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2016-09-29 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - aerosols; aliphatic hydrocarbons; alkanes; chromatograms; composition; experimental studies; gas chromatograms; gases; hydrocarbons; icy satellites; laboratory studies; mass spectra; methane; molecular structure; nitrogen; organic compounds; pyrolysis; satellites; spectra; synthesis; temperature; tholins; Titan Satellite DO - http://dx.doi.org/10.1016/j.icarus.2016.05.038 ER - TY - JOUR T1 - Origin and significance of decameter-scale polygons in the lower Peace Vallis fan of Gale Crater, Mars AN - 1824212656; 2016-081513 AB - Decameter-scale polygons are extensively developed in the Bedded Fractured (BF) Unit of the lower Peace Vallis fan. The polygons occur in a likely extension of the Gillespie Lake Member, north of Yellowknife Bay, the section first drilled by the Mars Science Laboratory (MSL) mission. We examine hypotheses for the origin of these polygons to provide insight into the history of Gale crater. The polygons are approximately 4-30 m across, square to rectangular, and defined by approximately 0.5-4 m wide, generally straight troughs with orthogonal intersections. Polygon networks are typically oriented-orthogonal systems, with occasional nearly circular patterns, hundreds of meters across. Potential origins include cooling of lava, and for sedimentary units, syneresis, unloading, weathering, desiccation, impact processes, and cold-climate thermal contraction. Cold-climate thermal contraction is the hypothesis most consistent with the sedimentary nature of the BF Unit and the polygon morphology, geometry, networks, and apparent restriction to the coarse-grained Gillespie Lake Member. A periglacial setting further provides the best analogs for the circular networks and is consistent with geologic context and MSL data. Most of the decametric polygons appear to be ancient. They are confined to the Hesperian BF Unit, and only a few of their bounding fractures extend into younger or recently exposed units. In this regard, they differ from the majority of proposed thermal-contraction polygons on Mars, as those are generally thought to be young features, and, accordingly, the history of formation, preservation and reactivation of the decametric polygons is likely to be more complex than that of any proposed young polygons on Mars. The decametric polygons in the BF Unit may represent landforms developed in a cold but still comparatively wet interlude between a clement early Mars and the much drier and colder planet of today. JF - Icarus AU - Oehler, Dorothy Z AU - Mangold, Nicolas AU - Hallet, Bernard AU - Fairen, Alberto G AU - Le Deit, Laetitia AU - Williams, Amy J AU - Sletten, Ronald S AU - Martinez-Frias, Jesus Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 56 EP - 72 PB - Elsevier, New York, NY VL - 277 SN - 0019-1035, 0019-1035 KW - Yellowknife Bay KW - Peace Vallis KW - networks KW - imagery KW - Mars Reconnaissance Orbiter KW - Mars KW - landforms KW - periglacial features KW - Hesperian KW - Context Camera KW - temperature KW - geometry KW - Gale Crater KW - terrestrial planets KW - morphology KW - planets KW - contraction KW - Gillespie Lake Member KW - Mars Science Laboratory KW - HiRISE KW - polygons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824212656?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Origin+and+significance+of+decameter-scale+polygons+in+the+lower+Peace+Vallis+fan+of+Gale+Crater%2C+Mars&rft.au=Oehler%2C+Dorothy+Z%3BMangold%2C+Nicolas%3BHallet%2C+Bernard%3BFairen%2C+Alberto+G%3BLe+Deit%2C+Laetitia%3BWilliams%2C+Amy+J%3BSletten%2C+Ronald+S%3BMartinez-Frias%2C+Jesus&rft.aulast=Oehler&rft.aufirst=Dorothy&rft.date=2016-10-01&rft.volume=277&rft.issue=&rft.spage=56&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.04.038 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 92 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2016-09-29 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - Context Camera; contraction; Gale Crater; geometry; Gillespie Lake Member; Hesperian; HiRISE; imagery; landforms; Mars; Mars Reconnaissance Orbiter; Mars Science Laboratory; morphology; networks; Peace Vallis; periglacial features; planets; polygons; temperature; terrestrial planets; Yellowknife Bay DO - http://dx.doi.org/10.1016/j.icarus.2016.04.038 ER - TY - JOUR T1 - Erythroblast morphology in refractory anemia with ring sideroblasts and thrombocytosis AN - 1821644339 JF - American Journal of Hematology AU - Caocci, Giovanni AU - La Nasa, Giorgio AU - Bain, Barbara J Y1 - 2016/10// PY - 2016 DA - Oct 2016 SP - 1056 CY - New York PB - Wiley Subscription Services, Inc. VL - 91 IS - 10 SN - 03618609 KW - Medical Sciences--Sports Medicine UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1821644339?accountid=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=American+Journal+of+Hematology&rft.atitle=Erythroblast+morphology+in+refractory+anemia+with+ring+sideroblasts+and+thrombocytosis&rft.au=Caocci%2C+Giovanni%3BLa+Nasa%2C+Giorgio%3BBain%2C+Barbara+J&rft.aulast=Caocci&rft.aufirst=Giovanni&rft.date=2016-10-01&rft.volume=91&rft.issue=10&rft.spage=1056&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Hematology&rft.issn=03618609&rft_id=info:doi/10.1002%2Fajh.24448 LA - English DB - ProQuest Central N1 - Copyright - © 2016 Wiley Periodicals, Inc. N1 - Last updated - 2016-09-21 DO - http://dx.doi.org/10.1002/ajh.24448 ER - TY - JOUR T1 - SMAP L-Band Microwave Radiometer: RFI Mitigation Prelaunch Analysis and First Year On-Orbit Observations AN - 1815693809; PQ0003602923 AB - The National Aeronautics and Space Administration's (NASA) Soil Moisture Active and Passive (SMAP) mission, which was launched on January 31, 2015, is providing global measurements of soil moisture and freeze/thaw state. The SMAP radiometer operates within the protected Earth Exploration Satellite Service passive frequency allocation of 1400-1427 MHz. However, unauthorized in-band transmitters and out-of-band emissions from transmitters operating at frequencies adjacent to this allocated spectrum are known to cause interference to microwave radiometry in this band. Because measurement corruption by these terrestrial transmissions, which is referred to as radio-frequency interference (RFI), threatens mission success, the SMAP radiometer includes special flight hardware to enable the detection and filtering of RFI. Results from the first year of SMAP data show the presence of RFI with frequent occurrence over Asia and Europe. During the calibration/validation stage of the mission, the RFI detection and mitigation algorithms were modified to provide enhanced performance. Analysis of the L1B_TB products indicates good algorithmic performance with respect to RFI detection and removal. However, some regions of the globe (e.g., Japan) continue to experience complete data loss. This paper summarizes updates to the SMAP RFI processing algorithms based on prelaunch tests and on-orbit measurements, as well as RFI information obtained in SMAP's first year on orbit. JF - IEEE Transactions on Geoscience and Remote Sensing AU - Mohammed, Priscilla N AU - Aksoy, Mustafa AU - Piepmeier, Jeffrey R AU - Johnson, Joel T AU - Bringer, Alexandra AD - NASA Goddard Space Flight Center, Morgan State University, Greenbelt, Baltimore, MD, MD, USAUSA Y1 - 2016/10// PY - 2016 DA - October 2016 SP - 6035 EP - 6047 PB - Institute of Electrical and Electronics Engineers, Inc., 345 E. 47th St. NY NY 10017-2394 United States VL - 54 IS - 10 SN - 0196-2892, 0196-2892 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Remote Sensing KW - INW, Japan KW - Satellite Technology KW - Mathematical models KW - Algorithms KW - Remote sensing KW - Soil Water KW - Microwave radiometers KW - Radiometers KW - Microwaves KW - Calibrations KW - Radiometry KW - ANE, Europe KW - Soils KW - Moisture Content KW - Exploration KW - Environment management KW - Q2 09123:Conservation KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815693809?accountid=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=IEEE+Transactions+on+Geoscience+and+Remote+Sensing&rft.atitle=SMAP+L-Band+Microwave+Radiometer%3A+RFI+Mitigation+Prelaunch+Analysis+and+First+Year+On-Orbit+Observations&rft.au=Mohammed%2C+Priscilla+N%3BAksoy%2C+Mustafa%3BPiepmeier%2C+Jeffrey+R%3BJohnson%2C+Joel+T%3BBringer%2C+Alexandra&rft.aulast=Mohammed&rft.aufirst=Priscilla&rft.date=2016-10-01&rft.volume=54&rft.issue=10&rft.spage=6035&rft.isbn=&rft.btitle=&rft.title=IEEE+Transactions+on+Geoscience+and+Remote+Sensing&rft.issn=01962892&rft_id=info:doi/10.1109%2FTGRS.2016.2580459 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Radiometers; Microwaves; Mathematical models; Soils; Remote sensing; Environment management; Microwave radiometers; Remote Sensing; Satellite Technology; Radiometry; Calibrations; Algorithms; Exploration; Moisture Content; Soil Water; INW, Japan; ANE, Europe DO - http://dx.doi.org/10.1109/TGRS.2016.2580459 ER - TY - JOUR T1 - Geoelectric hazard maps for the continental United States AN - 1863566515; 2017-008668 AB - In support of a multiagency project for assessing induction hazards, we present maps of extreme-value geoelectric amplitudes over about half of the continental United States. These maps are constructed using a parameterization of induction: estimates of Earth surface impedance, obtained at discrete geographic sites from magnetotelluric survey data, are convolved with latitude-dependent statistical maps of extreme-value geomagnetic activity, obtained from decades of magnetic observatory data. Geoelectric amplitudes are estimated for geomagnetic waveforms having 240 s sinusoidal period and amplitudes over 10 min that exceed a once-per-century threshold. As a result of the combination of geographic differences in geomagnetic activity and Earth surface impedance, once-per-century geoelectric amplitudes span more than 2 orders of magnitude and are an intricate function of location. For north-south induction, once-per-century geoelectric amplitudes across large parts of the United States have a median value of 0.26 V/km; for east-west geomagnetic variation the median value is 0.23 V/km. At some locations, once-per-century geoelectric amplitudes exceed 3 V/km. Abstract Copyright (2016), . The Authors. JF - Geophysical Research Letters AU - Love, Jeffrey J AU - Pulkkinen, Antti AU - Bedrosian, Paul A AU - Jonas, Seth AU - Kelbert, Anna AU - Rigler, E Joshua AU - Finn, Carol A AU - Balch, Christopher C AU - Rutledge, Robert AU - Waggel, Richard M AU - Sabata, Andrew T AU - Kozyra, Janet U AU - Black, Carrie E Y1 - 2016/09/28/ PY - 2016 DA - 2016 Sep 28 SP - 9415 EP - 9424 PB - American Geophysical Union, Washington, DC VL - 43 IS - 18 SN - 0094-8276, 0094-8276 KW - United States KW - electrical conductivity KW - geologic hazards KW - magnetic storms KW - induction KW - geophysical methods KW - electrical methods KW - magnetic methods KW - electrical field KW - waveforms KW - geologic hazards maps KW - magnetic field KW - magnetotelluric methods KW - conductivity KW - maps KW - natural hazards KW - electromagnetic methods KW - storms KW - electromagnetic induction KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1863566515?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Igneous+processes+and+dike+swarms%3B+magnetic+signatures+in+the+solar+system&rft.au=Purucker%2C+Michael+E%3BAnonymous&rft.aulast=Purucker&rft.aufirst=Michael&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2017-01-01 N1 - Number of references - 61 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2017-02-02 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - conductivity; electrical conductivity; electrical field; electrical methods; electromagnetic induction; electromagnetic methods; geologic hazards; geologic hazards maps; geophysical methods; induction; magnetic field; magnetic methods; magnetic storms; magnetotelluric methods; maps; natural hazards; storms; United States; waveforms DO - http://dx.doi.org/10.1002/2016GL070469 ER - TY - JOUR T1 - In situ and space-based observations of the Kelud volcanic plume; the persistence of ash in the lower stratosphere AN - 1844923613; 2016-101601 AB - Volcanic eruptions are important causes of natural variability in the climate system at all time scales. Assessments of the climate impact of volcanic eruptions by climate models almost universally assume that sulfate aerosol is the only radiatively active volcanic material. We report satellite observations from the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) on board the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) satellite after the eruption of Mount Kelud (Indonesia) on 13 February 2014 of volcanic materials in the lower stratosphere. Using these observations along with in situ measurements with the Compact Optical Backscatter AerosoL Detector (COBALD) backscatter sondes and optical particle counters (OPCs) made during a balloon field campaign in northern Australia, we find that fine ash particles with a radius below 0.3 mu m likely represented between 20 and 28% of the total volcanic cloud aerosol optical depth 3 months after the eruption. A separation of 1.5-2 km between the ash and sulfate plumes is observed in the CALIOP extinction profiles as well as in the aerosol number concentration measurements of the OPC after 3 months. The settling velocity of fine ash with a radius of 0.3 mu m in the tropical lower stratosphere is reduced by 50% due to the upward motion of the Brewer-Dobson circulation resulting a doubling of its lifetime. Three months after the eruption, we find a mean tropical clear-sky radiative forcing at the top of the atmosphere from the Kelud plume near -0.08 W/m (super 2) after including the presence of ash; a value approximately 20% higher than if sulfate alone is considered. Thus, surface cooling following volcanic eruptions could be affected by the persistence of ash and should be considered in climate simulations. Abstract Copyright (2016), . The Authors. JF - Journal of Geophysical Research: Atmospheres AU - Vernier, Jean-Paul AU - Fairlie, T Duncan AU - Deshler, Terry AU - Natarajan, Murali AU - Knepp, Travis AU - Foster, Katie AU - Wienhold, Frank G AU - Bedka, Kristopher M AU - Thomason, Larry AU - Trepte, Charles Y1 - 2016/09/27/ PY - 2016 DA - 2016 Sep 27 SP - 11 EP - 11,118 PB - Blackwell Wiley for American Geophysical Union, Washington, DC VL - 121 IS - 18 SN - 2169-897X, 2169-897X KW - plumes KW - Far East KW - volcanic rocks KW - igneous rocks KW - Indonesia KW - atmosphere KW - global change KW - CALIPSO KW - satellite methods KW - Java KW - climate change KW - temperature KW - pyroclastics KW - stratosphere KW - solar radiation KW - climate effects KW - Kelud KW - aerosols KW - volcanic ash KW - Asia KW - remote sensing KW - MODIS KW - global warming KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844923613?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Atmospheres&rft.atitle=In+situ+and+space-based+observations+of+the+Kelud+volcanic+plume%3B+the+persistence+of+ash+in+the+lower+stratosphere&rft.au=Vernier%2C+Jean-Paul%3BFairlie%2C+T+Duncan%3BDeshler%2C+Terry%3BNatarajan%2C+Murali%3BKnepp%2C+Travis%3BFoster%2C+Katie%3BWienhold%2C+Frank+G%3BBedka%2C+Kristopher+M%3BThomason%2C+Larry%3BTrepte%2C+Charles&rft.aulast=Vernier&rft.aufirst=Jean-Paul&rft.date=2016-09-27&rft.volume=121&rft.issue=18&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2016JD025344 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-8996 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 52 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2016-12-01 N1 - SubjectsTermNotLitGenreText - aerosols; Asia; atmosphere; CALIPSO; climate change; climate effects; Far East; global change; global warming; igneous rocks; Indonesia; Java; Kelud; MODIS; plumes; pyroclastics; remote sensing; satellite methods; solar radiation; stratosphere; temperature; volcanic ash; volcanic rocks DO - http://dx.doi.org/10.1002/2016JD025344 ER - TY - NEWS T1 - Antarctica Provides ICE to Study Behavior Effects in Astronauts AN - 1821633921 JF - UPI Space Daily AU - Monica Edwards and Charles Lloyd for NASA News Y1 - 2016/09/21/ PY - 2016 DA - 2016 Sep 21 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1821633921?accountid=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=Antarctica+Provides+ICE+to+Study+Behavior+Effects+in+Astronauts&rft.au=Monica+Edwards+and+Charles+Lloyd+for+NASA+News&rft.aulast=Monica+Edwards+and+Charles+Lloyd+for+NASA+News&rft.aufirst=&rft.date=2016-09-21&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&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 - 2016-09-21 ER - TY - JOUR T1 - The response of Phanerozoic surface temperature to variations in atmospheric oxygen concentration AN - 1844920883; 2016-103515 AB - Recently, Poulsen et al. (2015) suggested that O (sub 2) has played a major role in climate forcing during the Phanerozoic. Specifically, they argued that decreased O (sub 2) levels during the Cenomanian stage of the middle Cretaceous (94-100 Ma) could help explain the extremely warm climate during that time. The postulated warming mechanism involves decreased Rayleigh scattering by a thinner atmosphere, which reduces the planetary albedo and allows greater surface warming. This warming effect is then amplified by cloud feedbacks within their 3-D climate model. This increase in shortwave surface forcing, in their calculations, exceeds any decrease in the greenhouse effect caused by decreased O (sub 2) . Here we use a 1-D radiative-convective climate model (with no cloud feedback) to check their results. We also include a self-consistent calculation of the change in atmospheric ozone and its effect on climate. Our results are opposite to those of Poulsen et al.: we find that the climate warms by 1.4 K at 35% O (sub 2) concentrations as a result of increased pressure broadening of CO (sub 2) and H (sub 2) O absorption lines and cools by 0.8 K at 10% O (sub 2) as a result of decreased pressure broadening. The surface temperature changes are only about 1 K either way, though, for reasonable variations in Phanerozoic O (sub 2) concentrations (10%-35% by volume). Hence, it seems unlikely that changes in atmospheric O (sub 2) account for the warm climate of the Cenomanian. Other factors, such as a higher-than-expected sensitivity of climate to increased CO (sub 2) concentrations, may be required to obtain agreement with the paleoclimate data. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Atmospheres AU - Payne, Rebecca C AU - Britt, Amber V AU - Chen, Howard AU - Kasting, James F AU - Catling, David C Y1 - 2016/09/16/ PY - 2016 DA - 2016 Sep 16 SP - 10 EP - 10,096 PB - Blackwell Wiley for American Geophysical Union, Washington, DC VL - 121 IS - 17 SN - 2169-897X, 2169-897X KW - albedo KW - Phanerozoic KW - oxygen KW - paleoatmosphere KW - solar radiation KW - atmosphere KW - ground-surface temperature KW - paleoclimatology KW - GENESIS model KW - climate change KW - carbon dioxide KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844920883?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Atmospheres&rft.atitle=The+response+of+Phanerozoic+surface+temperature+to+variations+in+atmospheric+oxygen+concentration&rft.au=Payne%2C+Rebecca+C%3BBritt%2C+Amber+V%3BChen%2C+Howard%3BKasting%2C+James+F%3BCatling%2C+David+C&rft.aulast=Payne&rft.aufirst=Rebecca&rft.date=2016-09-16&rft.volume=121&rft.issue=17&rft.spage=10&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2016JD025459 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-8996 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 18 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2016-12-01 N1 - SubjectsTermNotLitGenreText - albedo; atmosphere; carbon dioxide; climate change; GENESIS model; ground-surface temperature; oxygen; paleoatmosphere; paleoclimatology; Phanerozoic; solar radiation DO - http://dx.doi.org/10.1002/2016JD025459 ER - TY - JOUR T1 - Impact of climate indicators on continental-scale potential groundwater recharge in Africa AN - 1840621143; 2016-096561 AB - In the last decades, human activity has been contributing to climate change that is closely associated with an increase in temperatures, increase in evaporation, intensification of extreme dry and wet rainfall events, and widespread melting of snow and ice. Understanding the intricate linkage between climate warming and the hydrological cycle is crucial for sustainable management of groundwater resources, especially in a vulnerable continent like Africa. This study investigates the relationship between climate-change drivers and potential groundwater recharge (PGR) patterns across Africa for a long-term record (1960-2010). Water-balance components were simulated by using the PCR-GLOBWB model and were reproduced in both gridded maps and latitudinal trends that vary in space with minima on the Tropics and maxima around the Equator. Statistical correlations between temperature, storm occurrences, drought, and PGR were examined in six climatic regions of Africa. Surprisingly, different effects of climate-change controls on PGR were detected as a function of latitude in the last three decades (1980-2010). Temporal trends observed in the Northern Hemisphere of Africa reveal that the increase in temperature is significantly correlated to the decline of PGR, especially in the Northern Equatorial Africa. The climate indicators considered in this study were unable to explain the alarming negative trend of PGR observed in the Sahelian region, even though the Standardized Precipitation-Evapotranspiration Index (SPEI) values report a 15% drought stress. On the other hand, increases in temperature have not been detected in the Southern Hemisphere of Africa, where increasing frequency of storm occurrences determine a rise of PGR, particularly in southern Africa. Time analysis highlights a strong seasonality effect, while PGR is in-phase with rainfall patterns in the summer (Northern Hemisphere) and winter (Southern Hemisphere) and out-of-phase during the fall season. This study helps to elucidate the mechanism of the processes influencing groundwater resources in six climatic zones of Africa, even though modelling results need to be validated more extensively with direct measurements in future studies. Copyright Copyright 2016 John Wiley & Sons, Ltd. JF - Hydrological Processes AU - Nasta, Paolo AU - Gates, John B AU - Wada, Yoshihide Y1 - 2016/09/15/ PY - 2016 DA - 2016 Sep 15 SP - 3420 EP - 3433 PB - Wiley-Blackwell, New York, NY VL - 30 IS - 19 SN - 0885-6087, 0885-6087 KW - water quality KW - PCRaster-GLOBal Water Balance model KW - climatic controls KW - pumping KW - water management KW - unsaturated zone KW - global change KW - climate change KW - ground water KW - drought KW - hydrologic cycle KW - storms KW - PCR-GLOBWB model KW - global warming KW - hydrology KW - Nash-Sutcliffe Efficiency Index KW - snowmelt KW - rainfall KW - human activity KW - water balance KW - indicators KW - evapotranspiration KW - aquifers KW - recharge KW - Southern Africa KW - Africa KW - shallow aquifers KW - seasonal variations KW - water resources KW - Sahel KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840621143?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrological+Processes&rft.atitle=Impact+of+climate+indicators+on+continental-scale+potential+groundwater+recharge+in+Africa&rft.au=Nasta%2C+Paolo%3BGates%2C+John+B%3BWada%2C+Yoshihide&rft.aulast=Nasta&rft.aufirst=Paolo&rft.date=2016-09-15&rft.volume=30&rft.issue=19&rft.spage=3420&rft.isbn=&rft.btitle=&rft.title=Hydrological+Processes&rft.issn=08856087&rft_id=info:doi/10.1002%2Fhyp.10869 L2 - http://www3.interscience.wiley.com/cgi-bin/jhome/4125 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 85 N1 - PubXState - NY N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - Africa; aquifers; climate change; climatic controls; drought; evapotranspiration; global change; global warming; ground water; human activity; hydrologic cycle; hydrology; indicators; Nash-Sutcliffe Efficiency Index; PCR-GLOBWB model; PCRaster-GLOBal Water Balance model; pumping; rainfall; recharge; Sahel; seasonal variations; shallow aquifers; snowmelt; Southern Africa; storms; unsaturated zone; water balance; water management; water quality; water resources DO - http://dx.doi.org/10.1002/hyp.10869 ER - TY - JOUR T1 - The geophysical environment of Bennu AN - 1815670055; 2016-076289 JF - Icarus AU - Scheeres, D J AU - Hesar, S G AU - Tardivel, S AU - Hirabayashi, M AU - Farnocchia, D AU - McMahon, J W AU - Chesley, S R AU - Barnouin, O AU - Binzel, R P AU - Bottke, W F AU - Daly, M G AU - Emery, J P AU - Hergenrother, C W AU - Lauretta, D S AU - Marshall, J R AU - Michel, P AU - Nolan, M C AU - Walsh, K J Y1 - 2016/09/15/ PY - 2016 DA - 2016 Sep 15 SP - 116 EP - 140 PB - Elsevier, New York, NY VL - 276 SN - 0019-1035, 0019-1035 KW - density KW - asteroids KW - slopes KW - altitude KW - OSIRIS-REx Mission KW - Bennu Asteroid KW - rubble-pile asteroids KW - porosity KW - geometry KW - morphology KW - models KW - mass KW - landslides KW - gravity field KW - topography KW - rotation KW - mass movements KW - velocity KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815670055?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+geophysical+environment+of+Bennu&rft.au=Scheeres%2C+D+J%3BHesar%2C+S+G%3BTardivel%2C+S%3BHirabayashi%2C+M%3BFarnocchia%2C+D%3BMcMahon%2C+J+W%3BChesley%2C+S+R%3BBarnouin%2C+O%3BBinzel%2C+R+P%3BBottke%2C+W+F%3BDaly%2C+M+G%3BEmery%2C+J+P%3BHergenrother%2C+C+W%3BLauretta%2C+D+S%3BMarshall%2C+J+R%3BMichel%2C+P%3BNolan%2C+M+C%3BWalsh%2C+K+J&rft.aulast=Scheeres&rft.aufirst=D&rft.date=2016-09-15&rft.volume=276&rft.issue=&rft.spage=116&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.04.013 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 86 N1 - PubXState - NY N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2016-09-01 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - altitude; asteroids; Bennu Asteroid; density; geometry; gravity field; landslides; mass; mass movements; models; morphology; OSIRIS-REx Mission; porosity; rotation; rubble-pile asteroids; slopes; topography; velocity DO - http://dx.doi.org/10.1016/j.icarus.2016.04.013 ER - TY - JOUR T1 - Aliphatic amines in Antarctic CR2, CM2, and CM1/2 carbonaceous chondrites AN - 1815670037; 2016-076824 AB - Meteoritic water-soluble organic compounds provide a unique record of the processes that occurred during the formation of the solar system and the chemistry preceding the origins of life on Earth. We have investigated the molecular distribution, compound-specific delta (super 13) C isotopic ratios and enantiomeric compositions of aliphatic monoamines present in the hot acid-water extracts of the carbonaceous chondrites LAP 02342 (CR2), GRA 95229 (CR2), LON 94101 (CM2), LEW 90500 (CM2), and ALH 83100 (CM1/2). Analyses of the concentration of monoamines in these meteorites revealed: (a) the CR2 chondrites studied here contain higher concentrations of monoamines relative to the analyzed CM2 chondrites; (b) the concentration of monoamines decreases with increasing carbon number; and (c) isopropylamine is the most abundant monoamine in these CR2 chondrites, while methylamine is the most abundant amine species in these CM2 and CM1/2 chondrites. The delta (super 13) C values of monoamines in CR2 chondrite do not correlate with the number of carbon atoms; however, in CM2 and CM1/2 chondrites, the (super 13) C enrichment decreases with increasing monoamine carbon number. The delta (super 13) C values of methylamine in CR2 chondrites ranged from -1 to +10 ppm, while in CM2 and CM1/2 chondrites the delta (super 13) C values of methylamine ranged from +41 to +59 ppm. We also observed racemic compositions of sec-butylamine, 3-methyl-2-butylamine, and sec-pentylamine in the studied carbonaceous chondrites. Additionally, we compared the abundance and delta (super 13) C isotopic composition of monoamines to those of their structurally related amino acids. We found that monoamines are less abundant than amino acids in CR2 chondrites, with the opposite being true in CM2 and CM1/2 chondrites. We used these collective data to evaluate different primordial synthetic pathways for monoamines in carbonaceous chondrites and to understand the potential common origins these molecules may share with meteoritic amino acids. JF - Geochimica et Cosmochimica Acta AU - Aponte, Jose C AU - McLain, Hannah L AU - Dworkin, Jason P AU - Elsila, Jamie E Y1 - 2016/09/15/ PY - 2016 DA - 2016 Sep 15 SP - 296 EP - 311 PB - Elsevier, New York, NY VL - 189 SN - 0016-7037, 0016-7037 KW - stony meteorites KW - isotopes KW - Lewis Cliff Meteorites KW - aliphatic amines KW - LaPaz Icefield Meteorites KW - gas chromatograms KW - mass spectra KW - astrobiology KW - stable isotopes KW - meteorites KW - amines KW - CR chondrites KW - carbon KW - spectra KW - chondrites KW - isotope ratios KW - biochemistry KW - C-13/C-12 KW - statistical analysis KW - cosmochemistry KW - carbonaceous chondrites KW - organic compounds KW - Allan Hills Meteorites KW - Antarctica KW - chromatograms KW - CM chondrites KW - 05B:Petrology of meteorites and tektites KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815670037?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Aliphatic+amines+in+Antarctic+CR2%2C+CM2%2C+and+CM1%2F2+carbonaceous+chondrites&rft.au=Aponte%2C+Jose+C%3BMcLain%2C+Hannah+L%3BDworkin%2C+Jason+P%3BElsila%2C+Jamie+E&rft.aulast=Aponte&rft.aufirst=Jose&rft.date=2016-09-15&rft.volume=189&rft.issue=&rft.spage=296&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2016.06.018 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 78 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-09-01 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aliphatic amines; Allan Hills Meteorites; amines; Antarctica; astrobiology; biochemistry; C-13/C-12; carbon; carbonaceous chondrites; chondrites; chromatograms; CM chondrites; cosmochemistry; CR chondrites; gas chromatograms; isotope ratios; isotopes; LaPaz Icefield Meteorites; Lewis Cliff Meteorites; mass spectra; meteorites; organic compounds; spectra; stable isotopes; statistical analysis; stony meteorites DO - http://dx.doi.org/10.1016/j.gca.2016.06.018 ER - TY - JOUR T1 - Distribution of phyllosilicates on the surface of Ceres AN - 1832728349; 2016-092806 AB - The dwarf planet Ceres is known to host phyllosilicate minerals at its surface, but their distribution and origin have not previously been determined. We used the spectrometer onboard the Dawn spacecraft to map their spatial distribution on the basis of diagnostic absorption features in the visible and near-infrared spectral range (0.25 to 5.0 micrometers). We found that magnesium- and ammonium-bearing minerals are ubiquitous across the surface. Variations in the strength of the absorption features are spatially correlated and indicate considerable variability in the relative abundance of the phyllosilicates, although their composition is fairly uniform. These data, along with the distinctive spectral properties of Ceres relative to other asteroids and carbonaceous meteorites, indicate that the phyllosilicates were formed endogenously by a globally widespread and extensive alteration process. JF - Science AU - Ammannito, Eleonora AU - De Sanctis, Maria Cristina AU - Ciarniello, M AU - Frigeri, A AU - Carrozzo, Filippo Giacomo AU - Combe, Jean-Philippe AU - Ehlmann, B L AU - Marchi, Simone AU - McSween, Harry Y AU - Raponi, Andrea AU - Toplis, M J AU - Tosi, F AU - Castillo-Rogez, J C AU - Capaccioni, F AU - Capria, M T AU - Fonte, S AU - Giardino, M AU - Jaumann, Ralf AU - Longobardo, A AU - Joy, S P AU - Magni, G AU - McCord, Thomas B AU - McFadden, Lucy A AU - Palomba, E AU - Pieters, C M AU - Polanskey, C A AU - Rayman, M D AU - Raymond, C A AU - Schenk, P M AU - Zambon, F AU - Russell, C T Y1 - 2016/09/02/ PY - 2016 DA - 2016 Sep 02 SP - 1006 PB - American Association for the Advancement of Science, Washington, DC VL - 353 IS - 6303 SN - 0036-8075, 0036-8075 KW - silicates KW - near-infrared spectra KW - Ceres KW - asteroids KW - mapping KW - distribution KW - Dawn Mission KW - dwarf planets KW - spatial distribution KW - absorption KW - mineral composition KW - surface features KW - sheet silicates KW - spectra KW - orbital observations KW - reflectance KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832728349?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Distribution+of+phyllosilicates+on+the+surface+of+Ceres&rft.au=Ammannito%2C+Eleonora%3BDe+Sanctis%2C+Maria+Cristina%3BCiarniello%2C+M%3BFrigeri%2C+A%3BCarrozzo%2C+Filippo+Giacomo%3BCombe%2C+Jean-Philippe%3BEhlmann%2C+B+L%3BMarchi%2C+Simone%3BMcSween%2C+Harry+Y%3BRaponi%2C+Andrea%3BToplis%2C+M+J%3BTosi%2C+F%3BCastillo-Rogez%2C+J+C%3BCapaccioni%2C+F%3BCapria%2C+M+T%3BFonte%2C+S%3BGiardino%2C+M%3BJaumann%2C+Ralf%3BLongobardo%2C+A%3BJoy%2C+S+P%3BMagni%2C+G%3BMcCord%2C+Thomas+B%3BMcFadden%2C+Lucy+A%3BPalomba%2C+E%3BPieters%2C+C+M%3BPolanskey%2C+C+A%3BRayman%2C+M+D%3BRaymond%2C+C+A%3BSchenk%2C+P+M%3BZambon%2C+F%3BRussell%2C+C+T&rft.aulast=Ammannito&rft.aufirst=Eleonora&rft.date=2016-09-02&rft.volume=353&rft.issue=6303&rft.spage=1006&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.aaf4279 L2 - http://www.sciencemag.org/magazine LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 29 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2016-10-27 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - absorption; asteroids; Ceres; Dawn Mission; distribution; dwarf planets; mapping; mineral composition; near-infrared spectra; orbital observations; reflectance; sheet silicates; silicates; spatial distribution; spectra; surface features DO - http://dx.doi.org/10.1126/science.aaf4279 ER - TY - JOUR T1 - Cryovolcanism on Ceres AN - 1832728188; 2016-092807 AB - Volcanic edifices are abundant on rocky bodies of the inner solar system. In the cold outer solar system, volcanism can occur on solid bodies with a water-ice shell, but derived cryovolcanic constructs have proved elusive. We report the discovery, using Dawn Framing Camera images, of a landform on dwarf planet Ceres that we argue represents a viscous cryovolcanic dome. Parent material of the cryomagma is a mixture of secondary minerals, including salts and water ice. Absolute model ages from impact craters reveal that extrusion of the dome has occurred recently. Ceres' evolution must have been able to sustain recent interior activity and associated surface expressions. We propose salts with low eutectic temperatures and thermal conductivities as key drivers for Ceres' long-term internal evolution. JF - Science AU - Ruesch, Ottaviano AU - Platz, T AU - Schenk, P M AU - McFadden, Lucy A AU - Castillo-Rogez, J C AU - Quick, L C AU - Byrne, S AU - Preusker, F AU - O'Brien, D P AU - Schmedemann, N AU - Williams, D A AU - Li, J Y AU - Bland, M T AU - Hiesinger, Harald AU - Kneissl, Thomas AU - Neesemann, A AU - Schaefer, M AU - Pasckert, J H AU - Schmidt, B E AU - Buczkowski, Debra L AU - Sykes, M V AU - Nathues, Andreas AU - Roatsch, T AU - Hoffmann, M AU - Raymond, C A AU - Russell, C T Y1 - 2016/09/02/ PY - 2016 DA - 2016 Sep 02 SP - 1005 PB - American Association for the Advancement of Science, Washington, DC VL - 353 IS - 6303 SN - 0036-8075, 0036-8075 KW - cryovolcanism KW - imagery KW - impact features KW - Ceres KW - asteroids KW - mapping KW - landforms KW - Dawn Mission KW - dwarf planets KW - models KW - lava domes KW - volcanic features KW - magmas KW - age KW - volcanoes KW - impact craters KW - orbital observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832728188?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Cryovolcanism+on+Ceres&rft.au=Ruesch%2C+Ottaviano%3BPlatz%2C+T%3BSchenk%2C+P+M%3BMcFadden%2C+Lucy+A%3BCastillo-Rogez%2C+J+C%3BQuick%2C+L+C%3BByrne%2C+S%3BPreusker%2C+F%3BO%27Brien%2C+D+P%3BSchmedemann%2C+N%3BWilliams%2C+D+A%3BLi%2C+J+Y%3BBland%2C+M+T%3BHiesinger%2C+Harald%3BKneissl%2C+Thomas%3BNeesemann%2C+A%3BSchaefer%2C+M%3BPasckert%2C+J+H%3BSchmidt%2C+B+E%3BBuczkowski%2C+Debra+L%3BSykes%2C+M+V%3BNathues%2C+Andreas%3BRoatsch%2C+T%3BHoffmann%2C+M%3BRaymond%2C+C+A%3BRussell%2C+C+T&rft.aulast=Ruesch&rft.aufirst=Ottaviano&rft.date=2016-09-02&rft.volume=353&rft.issue=6303&rft.spage=1005&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.aaf4286 L2 - http://www.sciencemag.org/magazine LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 53 N1 - PubXState - DC N1 - Document feature - illus. incl. geol. sketch maps N1 - SuppNotes - Full text available only online N1 - Last updated - 2016-10-27 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - age; asteroids; Ceres; cryovolcanism; Dawn Mission; dwarf planets; imagery; impact craters; impact features; landforms; lava domes; magmas; mapping; models; orbital observations; volcanic features; volcanoes DO - http://dx.doi.org/10.1126/science.aaf4286 ER - TY - JOUR T1 - The geomorphology of Ceres AN - 1832727644; 2016-092808 AB - Analysis of Dawn spacecraft Framing Camera image data allows evaluation of the topography and geomorphology of features on the surface of Ceres. The dwarf planet is dominated by numerous craters, but other features are also common. Linear structures include both those associated with impact craters and those that do not appear to have any correlation to an impact event. Abundant lobate flows are identified, and numerous domical features are found at a range of scales. Features suggestive of near-surface ice, cryomagmatism, and cryovolcanism have been identified. Although spectroscopic analysis has currently detected surface water ice at only one location on Ceres, the identification of these potentially ice-related features suggests that there may be at least some ice in localized regions in the crust. JF - Science AU - Buczkowski, Debra L AU - Schmidt, B E AU - Williams, D A AU - Mest, Scott C AU - Scully, Jennifer E C AU - Ermakov, A I AU - Preusker, F AU - Schenk, P M AU - Otto, K A AU - Hiesinger, Harald AU - O'Brien, D P AU - Marchi, Simone AU - Sizemore, H AU - Hughson, Kynan H G AU - Chilton, H AU - Bland, M T AU - Byrne, S AU - Schorghofer, N AU - Platz, T AU - Jaumann, Ralf AU - Roatsch, T AU - Sykes, M V AU - Nathues, Andreas AU - De Sanctis, Maria Cristina AU - Raymond, C A AU - Russell, C T Y1 - 2016/09/02/ PY - 2016 DA - 2016 Sep 02 SP - 1004 PB - American Association for the Advancement of Science, Washington, DC VL - 353 IS - 6303 SN - 0036-8075, 0036-8075 KW - water KW - cryovolcanism KW - imagery KW - impact features KW - Ceres KW - asteroids KW - mapping KW - landforms KW - cryomagmatism KW - Dawn Mission KW - dwarf planets KW - topography KW - surface features KW - impact craters KW - orbital observations KW - geomorphology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832727644?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=The+geomorphology+of+Ceres&rft.au=Buczkowski%2C+Debra+L%3BSchmidt%2C+B+E%3BWilliams%2C+D+A%3BMest%2C+Scott+C%3BScully%2C+Jennifer+E+C%3BErmakov%2C+A+I%3BPreusker%2C+F%3BSchenk%2C+P+M%3BOtto%2C+K+A%3BHiesinger%2C+Harald%3BO%27Brien%2C+D+P%3BMarchi%2C+Simone%3BSizemore%2C+H%3BHughson%2C+Kynan+H+G%3BChilton%2C+H%3BBland%2C+M+T%3BByrne%2C+S%3BSchorghofer%2C+N%3BPlatz%2C+T%3BJaumann%2C+Ralf%3BRoatsch%2C+T%3BSykes%2C+M+V%3BNathues%2C+Andreas%3BDe+Sanctis%2C+Maria+Cristina%3BRaymond%2C+C+A%3BRussell%2C+C+T&rft.aulast=Buczkowski&rft.aufirst=Debra&rft.date=2016-09-02&rft.volume=353&rft.issue=6303&rft.spage=1004&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.aaf4332 L2 - http://www.sciencemag.org/magazine LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 48 N1 - PubXState - DC N1 - Document feature - illus. incl. geol. sketch maps N1 - Last updated - 2016-10-27 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - asteroids; Ceres; cryomagmatism; cryovolcanism; Dawn Mission; dwarf planets; geomorphology; imagery; impact craters; impact features; landforms; mapping; orbital observations; surface features; topography; water DO - http://dx.doi.org/10.1126/science.aaf4332 ER - TY - JOUR T1 - Dawn arrives at Ceres; exploration of a small, volatile-rich world AN - 1832727637; 2016-092810 AB - On 6 March 2015, Dawn arrived at Ceres to find a dark, desiccated surface punctuated by small, bright areas. Parts of Ceres' surface are heavily cratered, but the largest expected craters are absent. Ceres appears gravitationally relaxed at only the longest wavelengths, implying a mechanically strong lithosphere with a weaker deep interior. Ceres' dry exterior displays hydroxylated silicates, including ammoniated clays of endogenous origin. The possibility of abundant volatiles at depth is supported by geomorphologic features such as flat crater floors with pits, lobate flows of materials, and a singular mountain that appears to be an extrusive cryovolcanic dome. On one occasion, Ceres temporarily interacted with the solar wind, producing a bow shock accelerating electrons to energies of tens of kilovolts. JF - Science AU - Russell, C T AU - Raymond, C A AU - Ammannito, Eleonora AU - Buczkowski, Debra L AU - De Sanctis, Maria Cristina AU - Hiesinger, Harald AU - Jaumann, Ralf AU - Konopliv, A S AU - McSween, Harry Y AU - Nathues, Andreas AU - Park, R S AU - Pieters, C M AU - Prettyman, T H AU - McCord, Thomas B AU - McFadden, Lucy A AU - Mottola, S AU - Zuber, M T AU - Joy, S P AU - Polanskey, C AU - Rayman, M D AU - Castillo-Rogez, J C AU - Chi, P J AU - Combe, Jean-Philippe AU - Ermakov, A AU - Fu, Roger R AU - Hoffmann, M AU - Jia, Y D AU - King, S D AU - Lawrence, David J AU - Li, J Y AU - Marchi, Simone AU - Preusker, F AU - Roatsch, T AU - Ruesch, Ottaviano AU - Schenk, P M AU - Villarreal, M N AU - Yamashita, N Y1 - 2016/09/02/ PY - 2016 DA - 2016 Sep 02 SP - 1008 EP - 1010 PB - American Association for the Advancement of Science, Washington, DC VL - 353 IS - 6303 SN - 0036-8075, 0036-8075 KW - silicates KW - cryovolcanism KW - imagery KW - impact features KW - Ceres KW - asteroids KW - Dawn Mission KW - dwarf planets KW - relief KW - exploration KW - volatiles KW - mineral composition KW - planetary interiors KW - surface features KW - impact craters KW - orbital observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832727637?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Dawn+arrives+at+Ceres%3B+exploration+of+a+small%2C+volatile-rich+world&rft.au=Russell%2C+C+T%3BRaymond%2C+C+A%3BAmmannito%2C+Eleonora%3BBuczkowski%2C+Debra+L%3BDe+Sanctis%2C+Maria+Cristina%3BHiesinger%2C+Harald%3BJaumann%2C+Ralf%3BKonopliv%2C+A+S%3BMcSween%2C+Harry+Y%3BNathues%2C+Andreas%3BPark%2C+R+S%3BPieters%2C+C+M%3BPrettyman%2C+T+H%3BMcCord%2C+Thomas+B%3BMcFadden%2C+Lucy+A%3BMottola%2C+S%3BZuber%2C+M+T%3BJoy%2C+S+P%3BPolanskey%2C+C%3BRayman%2C+M+D%3BCastillo-Rogez%2C+J+C%3BChi%2C+P+J%3BCombe%2C+Jean-Philippe%3BErmakov%2C+A%3BFu%2C+Roger+R%3BHoffmann%2C+M%3BJia%2C+Y+D%3BKing%2C+S+D%3BLawrence%2C+David+J%3BLi%2C+J+Y%3BMarchi%2C+Simone%3BPreusker%2C+F%3BRoatsch%2C+T%3BRuesch%2C+Ottaviano%3BSchenk%2C+P+M%3BVillarreal%2C+M+N%3BYamashita%2C+N&rft.aulast=Russell&rft.aufirst=C&rft.date=2016-09-02&rft.volume=353&rft.issue=6303&rft.spage=1008&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.aaf4219 L2 - http://www.sciencemag.org/magazine LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 28 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2016-10-27 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - asteroids; Ceres; cryovolcanism; Dawn Mission; dwarf planets; exploration; imagery; impact craters; impact features; mineral composition; orbital observations; planetary interiors; relief; silicates; surface features; volatiles DO - http://dx.doi.org/10.1126/science.aaf4219 ER - TY - JOUR T1 - Cratering on Ceres; implications for its crust and evolution AN - 1832727557; 2016-092809 AB - Thermochemical models have predicted that Ceres, is to some extent, differentiated and should have an icy crust with few or no impact craters. We present observations by the Dawn spacecraft that reveal a heavily cratered surface, a heterogeneous crater distribution, and an apparent absence of large craters. The morphology of some impact craters is consistent with ice in the subsurface, which might have favored relaxation, yet large unrelaxed craters are also present. Numerous craters exhibit polygonal shapes, terraces, flowlike features, slumping, smooth deposits, and bright spots. Crater morphology and simple-to-complex crater transition diameters indicate that the crust of Ceres is neither purely icy nor rocky. By dating a smooth region associated with the Kerwan crater, we determined absolute model ages (AMAs) of 550 million and 720 million years, depending on the applied chronology model. JF - Science AU - Hiesinger, Harald AU - Marchi, Simone AU - Schmedemann, N AU - Schenk, P M AU - Pasckert, J H AU - Neesemann, A AU - O'Brien, D P AU - Kneissl, Thomas AU - Ermakov, A I AU - Fu, Roger R AU - Bland, M T AU - Nathues, Andreas AU - Platz, T AU - Williams, D A AU - Jaumann, Ralf AU - Castillo-Rogez, J C AU - Ruesch, Ottaviano AU - Schmidt, B E AU - Park, R S AU - Preusker, F AU - Buczkowski, Debra L AU - Russell, C T AU - Raymond, C A Y1 - 2016/09/02/ PY - 2016 DA - 2016 Sep 02 SP - 1003 PB - American Association for the Advancement of Science, Washington, DC VL - 353 IS - 6303 SN - 0036-8075, 0036-8075 KW - systems KW - impact features KW - Ceres KW - asteroids KW - digital terrain models KW - Dawn Mission KW - dwarf planets KW - grabens KW - morphology KW - models KW - surface features KW - impact craters KW - thermochemical properties KW - faults KW - crust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832727557?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Cratering+on+Ceres%3B+implications+for+its+crust+and+evolution&rft.au=Hiesinger%2C+Harald%3BMarchi%2C+Simone%3BSchmedemann%2C+N%3BSchenk%2C+P+M%3BPasckert%2C+J+H%3BNeesemann%2C+A%3BO%27Brien%2C+D+P%3BKneissl%2C+Thomas%3BErmakov%2C+A+I%3BFu%2C+Roger+R%3BBland%2C+M+T%3BNathues%2C+Andreas%3BPlatz%2C+T%3BWilliams%2C+D+A%3BJaumann%2C+Ralf%3BCastillo-Rogez%2C+J+C%3BRuesch%2C+Ottaviano%3BSchmidt%2C+B+E%3BPark%2C+R+S%3BPreusker%2C+F%3BBuczkowski%2C+Debra+L%3BRussell%2C+C+T%3BRaymond%2C+C+A&rft.aulast=Hiesinger&rft.aufirst=Harald&rft.date=2016-09-02&rft.volume=353&rft.issue=6303&rft.spage=1003&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.aaf4759 L2 - http://www.sciencemag.org/magazine LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 70 N1 - PubXState - DC N1 - Document feature - illus. incl. geol. sketch maps N1 - Last updated - 2016-10-27 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - asteroids; Ceres; crust; Dawn Mission; digital terrain models; dwarf planets; faults; grabens; impact craters; impact features; models; morphology; surface features; systems; thermochemical properties DO - http://dx.doi.org/10.1126/science.aaf4759 ER - TY - JOUR T1 - Precipitation estimation using L-band and C-band soil moisture retrievals AN - 1863566621; 2017-008646 AB - An established methodology for estimating precipitation amounts from satellite-based soil moisture retrievals is applied to L-band products from the Soil Moisture Active Passive (SMAP) and Soil Moisture and Ocean Salinity (SMOS) satellite missions and to a C-band product from the Advanced Scatterometer (ASCAT) mission. The precipitation estimates so obtained are evaluated against in situ (gauge-based) precipitation observations from across the globe. The precipitation estimation skill achieved using the L-band SMAP and SMOS data sets is higher than that obtained with the C-band product, as might be expected given that L-band is sensitive to a thicker layer of soil and thereby provides more information on the response of soil moisture to precipitation. The square of the correlation coefficient between the SMAP-based precipitation estimates and the observations (for aggregations to approximately 100 km and 5 days) is on average about 0.6 in areas of high rain gauge density. Satellite missions specifically designed to monitor soil moisture thus do provide significant information on precipitation variability, information that could contribute to efforts in global precipitation estimation. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Water Resources Research AU - Koster, Randal D AU - Brocca, Luca AU - Crow, Wade T AU - Burgin, Mariko S AU - de Lannoy, Gabrielle J M Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 7213 EP - 7225 PB - American Geophysical Union, Washington, DC VL - 52 IS - 9 SN - 0043-1397, 0043-1397 KW - soils KW - hydrology KW - gauging KW - monitoring KW - moisture KW - global KW - mapping KW - atmospheric precipitation KW - satellite methods KW - algorithms KW - rain KW - remote sensing KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1863566621?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Precipitation+estimation+using+L-band+and+C-band+soil+moisture+retrievals&rft.au=Koster%2C+Randal+D%3BBrocca%2C+Luca%3BCrow%2C+Wade+T%3BBurgin%2C+Mariko+S%3Bde+Lannoy%2C+Gabrielle+J+M&rft.aulast=Koster&rft.aufirst=Randal&rft.date=2016-09-01&rft.volume=52&rft.issue=9&rft.spage=7213&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1002%2F2016WR019024 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2017-01-01 N1 - Number of references - 28 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2017-02-02 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - algorithms; atmospheric precipitation; gauging; global; hydrology; mapping; moisture; monitoring; rain; remote sensing; satellite methods; soils DO - http://dx.doi.org/10.1002/2016WR019024 ER - TY - JOUR T1 - Influence of measurement uncertainties on fractional solubility of iron in mineral aerosols over the oceans AN - 1861083197; 785490-8 AB - The atmospheric supply of mineral dust iron (Fe) plays a crucial role in the Earth's biogeochemical cycle and is of specific importance as a micronutrient in the marine environment. Observations show several orders of magnitude variability in the fractional solubility of Fe in mineral dust aerosols, making it hard to assess the role of mineral dust in the global ocean biogeochemical Fe cycle. In this study we compare the operational solubility of mineral dust aerosol Fe associated with the flow-through leaching protocol to the results of the global 3-D chemical transport model GEOS-Chem. According to the protocol, aerosol Fe is defined as soluble by first deionized water leaching of mineral dust through a 0.45 mu m pore size membrane followed by acidification and storage of the leachate over a long period of time prior to analysis. To estimate the uncertainty in soluble Fe results introduced by the flow-through leaching protocol, we prescribe an average 50% (range of 30-70%) fractional solubility to sub-0.45 mu m sized mineral dust particles that may inadvertently pass the filter and end up in the acidified (at pH approximately 1.7) leachate for a couple of month period. In the model, the fractional solubility of Fe is either explicitly calculated using a complex mineral aerosol Fe dissolution equations, or prescribed to be 1% and 4% often used by global ocean biogeochemical Fe cycle models to reproduce the broad characteristics of the presently observed ocean dissolved iron distribution. Calculations show that the fractional solubility of Fe derived through the flow-through leaching is higher compared to the model results. The largest differences ( approximately 40%) are predicted to occur farther away from the dust source regions, over the areas where sub-0.45 mu m sized mineral dust particles contribute a larger fraction of the total mineral dust mass. This study suggests that different methods used in soluble Fe measurements and inconsistences in the operational definition of filterable Fe in marine environment and soluble Fe in atmospheric aerosols are likely to contribute to the wide range of fractional solubility of aerosol Fe reported in the literature. JF - Aeolian Research AU - Meskhidze, Nicholas AU - Johnson, Matthew S AU - Hurley, David AU - Dawson, Kyle Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 85 EP - 92 PB - Elsevier, Amsterdam VL - 22 SN - 1875-9637, 1875-9637 KW - sediment supply KW - iron KW - size distribution KW - mineral composition KW - transport KW - sediments KW - chemical composition KW - world ocean KW - uncertainty KW - pH KW - granulometry KW - three-dimensional models KW - sediment transport KW - clastic sediments KW - biochemistry KW - statistical analysis KW - solubility KW - measurement KW - geochemical cycle KW - metals KW - dust KW - aerosols KW - acidification KW - wind transport KW - leaching KW - crystal chemistry KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861083197?accountid=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=Aeolian+Research&rft.atitle=Influence+of+measurement+uncertainties+on+fractional+solubility+of+iron+in+mineral+aerosols+over+the+oceans&rft.au=Meskhidze%2C+Nicholas%3BJohnson%2C+Matthew+S%3BHurley%2C+David%3BDawson%2C+Kyle&rft.aulast=Meskhidze&rft.aufirst=Nicholas&rft.date=2016-09-01&rft.volume=22&rft.issue=&rft.spage=85&rft.isbn=&rft.btitle=&rft.title=Aeolian+Research&rft.issn=18759637&rft_id=info:doi/10.1016%2Fj.aeolia.2016.07.002 L2 - http://www.sciencedirect.com/science/journal/18759637 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 CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Number of references - 78 N1 - Document feature - illus. incl. sketch map N1 - SuppNotes - Includes appendices N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - acidification; aerosols; biochemistry; chemical composition; clastic sediments; crystal chemistry; dust; geochemical cycle; granulometry; iron; leaching; measurement; metals; mineral composition; pH; sediment supply; sediment transport; sediments; size distribution; solubility; statistical analysis; three-dimensional models; transport; uncertainty; wind transport; world ocean DO - http://dx.doi.org/10.1016/j.aeolia.2016.07.002 ER - TY - JOUR T1 - Magnetite plaquettes are naturally asymmetric materials in meteorites AN - 1840621593; 2016-096419 AB - Life on Earth shows preference toward the set of organics with particular spatial configurations. Enantiomeric excesses have been observed for alpha -methyl amino acids in meteorites, which suggests that chiral asymmetry might have an abiotic origin. A possible abiotic mechanism that could produce chiral asymmetry in meteoritic amino acids is their formation under the influence of asymmetric catalysts, as mineral crystallization can produce spatially asymmetric structures. Although magnetite plaquettes have been proposed to be a possible candidate for an asymmetric catalyst, based on the suggestion that they have a spiral structure, a comprehensive description of their morphology and interpretation of the mechanism associated with symmetry-breaking in biomolecules remain elusive. Here we report observations of magnetite plaquettes in carbonaceous chondrites (CC) that were made with scanning electron microscopy and synchrotron X-ray computed microtomography (SXRCT). We obtained the crystal orientation of the plaquettes using electron backscatter diffraction (EBSD) analysis. SXRCT permits visualization of the internal features of the plaquettes. It provides an unambiguous conclusion that the plaquettes are devoid of a spiral feature and, rather that they are stacks of individual magnetite disks that do not join to form a continuous spiral. Despite the lack of spiral features, our EBSD data show significant changes in crystal orientation between adjacent magnetite disks. The magnetite disks are displaced in a consistent relative direction that lead to an overall crystallographic rotational mechanism. This work offers an explicit understanding of the structures of magnetite plaquettes in CC, which provides a fundamental basis for future interpretation of the proposed symmetry-breaking mechanism. JF - American Mineralogist AU - Chan, Queenie H S AU - Zolensky, Michael E AU - Martinez, James E AU - Tsuchiyama, Akira AU - Miyake, Akira Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 2041 EP - 2050 PB - Mineralogical Society of America, Washington, DC VL - 101 IS - 9 SN - 0003-004X, 0003-004X KW - stony meteorites KW - electron diffraction data KW - magnetic domains KW - electron microscopy data KW - crystal structure KW - carbonaceous chondrites KW - life origin KW - synchrotron radiation KW - aqueous alteration KW - meteorites KW - X-rays KW - organic compounds KW - organic acids KW - amino acids KW - oxides KW - symmetry KW - computed tomography data KW - chondrites KW - SEM data KW - magnetite KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840621593?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Magnetite+plaquettes+are+naturally+asymmetric+materials+in+meteorites&rft.au=Chan%2C+Queenie+H+S%3BZolensky%2C+Michael+E%3BMartinez%2C+James+E%3BTsuchiyama%2C+Akira%3BMiyake%2C+Akira&rft.aulast=Chan&rft.aufirst=Queenie+H&rft.date=2016-09-01&rft.volume=101&rft.issue=9&rft.spage=2041&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam-2016-5604 L2 - http://www.minsocam.org/MSA/AmMin/TOC/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 58 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-11-17 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - amino acids; aqueous alteration; carbonaceous chondrites; chondrites; computed tomography data; crystal structure; electron diffraction data; electron microscopy data; life origin; magnetic domains; magnetite; meteorites; organic acids; organic compounds; oxides; SEM data; stony meteorites; symmetry; synchrotron radiation; X-rays DO - http://dx.doi.org/10.2138/am-2016-5604 ER - TY - JOUR T1 - Study on nanophase iron oxyhydroxides in freshwater ferromanganese nodules from Green Bay, Lake Michigan, with implications for the adsorption of As and heavy metals AN - 1840621324; 2016-096414 AB - Nanophase Fe-oxyhydroxides in freshwater ferromanganese nodules (FFN) from Green Bay, Lake Michigan, and adsorbed arsenate have been investigated by X-ray powder diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), Z-contrast imaging, and ab initio calculations using the density functional theory (DFT). The samples from northern Green Bay can be divided into two types: Fe-Mn nodules and Fe-rich nodules. The manganese-bearing phases are todorokite, birnessite, and buserite. The iron-bearing phases are feroxyhyte, nanophase goethite, two-line ferrihydrite, and nanophase FeOOH with guyanaite structure. Z-contrast images of the Fe-oxyhydroxides show ordered FeOOH nano-domains with guyanaite structure intergrown with nanophase goethite. The FeOOH nanophase is a precursor to the goethite. Henceforth, we will refer to it as "proto-goethite." DFT calculations indicate that goethite is more stable than proto-goethite. Our results suggest that ordering between Fe and vacancies in octahedral sites result in the transformation from feroxyhyte to goethite through a proto-goethite intermediate phase. Combining Z-contrast images and TEM-EDS reveals that arsenate (AsO (sub 4) (super 3-) ) tetrahedra are preferentially adsorbed on the proto-goethite (001) surface via tridentate adsorption. Our study directly shows the atomic positions of Fe-oxyhydroxides with associated trace elements. The methods can be applied for identifying structures of nanophases and adsorbed trace elements and heavy metals. JF - American Mineralogist AU - Lee, Seungyeol AU - Shen, Zhizhang AU - Xu, Huifang Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 1986 EP - 1995 PB - Mineralogical Society of America, Washington, DC VL - 101 IS - 9 SN - 0003-004X, 0003-004X KW - secondary structures KW - goethite KW - X-ray diffraction data KW - nodules KW - feroxyhyte KW - ferromanganese composition KW - Lake Michigan KW - arsenates KW - sediments KW - oxides KW - Great Lakes KW - sedimentary structures KW - heavy metals KW - North America KW - density functional theory KW - oxyhydroxides KW - Green Bay KW - arsenic KW - electron microscopy data KW - adsorption KW - ferrihydrite KW - TEM data KW - iron hydroxides KW - hydroxides KW - concretions KW - metals KW - lacustrine environment KW - nanoparticles KW - lake sediments KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840621324?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Study+on+nanophase+iron+oxyhydroxides+in+freshwater+ferromanganese+nodules+from+Green+Bay%2C+Lake+Michigan%2C+with+implications+for+the+adsorption+of+As+and+heavy+metals&rft.au=Lee%2C+Seungyeol%3BShen%2C+Zhizhang%3BXu%2C+Huifang&rft.aulast=Lee&rft.aufirst=Seungyeol&rft.date=2016-09-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.minsocam.org/MSA/AmMin/TOC/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 53 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2016-11-17 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - adsorption; arsenates; arsenic; concretions; density functional theory; electron microscopy data; feroxyhyte; ferrihydrite; ferromanganese composition; goethite; Great Lakes; Green Bay; heavy metals; hydroxides; iron hydroxides; lacustrine environment; Lake Michigan; lake sediments; metals; nanoparticles; nodules; North America; oxides; oxyhydroxides; secondary structures; sedimentary structures; sediments; TEM data; X-ray diffraction data DO - http://dx.doi.org/10.2138/am-2016-5729 ER - TY - JOUR T1 - A review of the handheld X-ray fluorescence spectrometer as a tool for field geologic investigations on Earth and in planetary surface exploration AN - 1840620415; 2016-094306 AB - X-ray fluorescence (XRF) spectroscopy is a well-established and commonly used technique in obtaining diagnostic compositional data on geological samples. Recently, developments in X-ray tube and detector technologies have resulted in miniaturized, field-portable instruments that enable new applications both in and out of standard laboratory settings. These applications, however, have not been extensively applied to geologic field campaigns. This study investigates the feasibility of using developing handheld XRF (hXRF) technology to enhance terrestrial field geology, with potential applications in planetary surface exploration missions. We demonstrate that the hXRF is quite stable, providing reliable and accurate data continuously over a several year period. Additionally, sample preparation is proved to have a marked effect on the strategy for collecting and assimilating hXRF data. While the hXRF is capable of obtaining data that are comparable to laboratory XRF analysis for several geologically-important elements (such as Si, Ca, Ti, and K), the instrument is unable to detect other elements (such as Mg and Na) reliably. While this limits the use of the hXRF, especially when compared to laboratory XRF techniques, the hXRF is still capable of providing the field user with significantly improved contextual awareness of a field site, and more work is needed to fully evaluate the potential of this instrument in more complex geologic environments. JF - Applied Geochemistry AU - Young, Kelsey E AU - Evans, Cynthia A AU - Hodges, Kip V AU - Bleacher, Jacob E AU - Graff, Trevor G Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 77 EP - 87 PB - Elsevier, Oxford-New York-Beijing VL - 72 SN - 0883-2927, 0883-2927 KW - methods KW - chemical analysis KW - minor elements KW - X-ray fluorescence KW - statistical analysis KW - measurement KW - major elements KW - metals KW - X-ray analysis KW - trace elements KW - chemical composition KW - rocks KW - instruments KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840620415?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Geochemistry&rft.atitle=A+review+of+the+handheld+X-ray+fluorescence+spectrometer+as+a+tool+for+field+geologic+investigations+on+Earth+and+in+planetary+surface+exploration&rft.au=Young%2C+Kelsey+E%3BEvans%2C+Cynthia+A%3BHodges%2C+Kip+V%3BBleacher%2C+Jacob+E%3BGraff%2C+Trevor+G&rft.aulast=Young&rft.aufirst=Kelsey&rft.date=2016-09-01&rft.volume=72&rft.issue=&rft.spage=77&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/10.1016%2Fj.apgeochem.2016.07.003 L2 - http://www.sciencedirect.com/science/journal/08832927 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 44 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - chemical analysis; chemical composition; instruments; major elements; measurement; metals; methods; minor elements; rocks; statistical analysis; trace elements; X-ray analysis; X-ray fluorescence DO - http://dx.doi.org/10.1016/j.apgeochem.2016.07.003 ER - TY - JOUR T1 - Redox variations in the inner solar system with new constraints from vanadium XANES in spinels AN - 1840619180; 2016-096410 AB - Many igneous rocks contain mineral assemblages that are not appropriate for application of common mineral equilibria or oxybarometers to estimate oxygen fugacity. Spinel-structured oxides, common minerals in many igneous rocks, typically contain sufficient V for XANES measurements, allowing use of the correlation between oxygen fugacity and V K pre-edge peak intensity. Here we report V pre-edge peak intensities for a wide range of spinels from source rocks ranging from terrestrial basalt to achondrites to oxidized chondrites. The XANES measurements are used to calculate oxygen fugacity from experimentally produced spinels of known f (sub O2) . We obtain values, in order of increasing f (sub O2) , from IW-3 for lodranites and acapulcoites, to diogenites, brachinites (near IW), ALH 84001, terrestrial basalt, hornblende-bearing R chondrite LAP 04840 (IW+1.6), and finally ranging up to IW+3.1 for CK chondrites (where the Delta IW notation = logf (sub O2) of a sample relative to the logf (sub O2) of the IW buffer at specific T). To place the significance of these new measurements into context we then review the range of oxygen fugacities recorded in major achondrite groups, chondritic and primitive materials, and planetary materials. This range extends from IW-8 to IW+2. Several chondrite groups associated with aqueous alteration exhibit values that are slightly higher than this range, suggesting that water and oxidation may be linked. The range in planetary materials is even wider than that defined by meteorite groups. Earth and Mars exhibit values higher than IW+2, due to a critical role played by pressure. Pressure allows dissolution of volatiles into magmas, which can later cause oxidation or reduction during fractionation, cooling, and degassing. Fluid mobility, either in the sub-arc mantle and crust, or in regions of metasomatism, can generate values >IW+2, again suggesting an important link between water and oxidation. At the very least, Earth exhibits a higher range of oxidation than other planets and astromaterials due to the presence of an O-rich atmosphere, liquid water, and hydrated interior. New analytical techniques and sample suites will revolutionize our understanding of oxygen fugacity variation in the inner solar system, and the origin of our solar system in general. JF - American Mineralogist AU - Righter, Kevin AU - Sutton, Steve R AU - Danielson, Lisa AU - Pando, Kellye AU - Newville, Matt Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 1928 EP - 1942 PB - Mineralogical Society of America, Washington, DC VL - 101 IS - 9 SN - 0003-004X, 0003-004X KW - volcanic rocks KW - stony meteorites KW - oxygen KW - igneous rocks KW - fugacity KW - XANES spectra KW - meteorites KW - vanadium KW - basalts KW - oxides KW - spectra KW - Eh KW - solar system KW - diogenite KW - chromite KW - achondrites KW - X-ray spectra KW - solar nebula KW - cosmic dust KW - Allan Hills Meteorites KW - comets KW - Antarctica KW - metals KW - brachinite KW - acapulcoite KW - spinel group KW - crystal chemistry KW - 04:Extraterrestrial geology KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840619180?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Redox+variations+in+the+inner+solar+system+with+new+constraints+from+vanadium+XANES+in+spinels&rft.au=Righter%2C+Kevin%3BSutton%2C+Steve+R%3BDanielson%2C+Lisa%3BPando%2C+Kellye%3BNewville%2C+Matt&rft.aulast=Righter&rft.aufirst=Kevin&rft.date=2016-09-01&rft.volume=101&rft.issue=9&rft.spage=1928&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam-2016-5638 L2 - http://www.minsocam.org/MSA/AmMin/TOC/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 140 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-11-17 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - acapulcoite; achondrites; Allan Hills Meteorites; Antarctica; basalts; brachinite; chromite; comets; cosmic dust; crystal chemistry; diogenite; Eh; fugacity; igneous rocks; metals; meteorites; oxides; oxygen; solar nebula; solar system; spectra; spinel group; stony meteorites; vanadium; volcanic rocks; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.2138/am-2016-5638 ER - TY - JOUR T1 - Subsurface morphology and scaling of lunar impact basins AN - 1840618354; 2016-098950 AB - Impact bombardment during the first billion years after the formation of the Moon produced at least several tens of basins. The Gravity Recovery and Interior Laboratory (GRAIL) mission mapped the gravity field of these impact structures at significantly higher spatial resolution than previous missions, allowing for detailed subsurface and morphological analyses to be made across the entire globe. GRAIL-derived crustal thickness maps were used to define the regions of crustal thinning observed in centers of lunar impact basins, which represents a less unambiguous measure of a basin size than those based on topographic features. The formation of lunar impact basins was modeled numerically by using the iSALE-2D hydrocode, with a large range of impact and target conditions typical for the first billion years of lunar evolution. In the investigated range of impactor and target conditions, the target temperature had the dominant effect on the basin subsurface morphology. Model results were also used to update current impact scaling relationships applicable to the lunar setting (based on assumed target temperature). Our new temperature-dependent impact-scaling relationships provide estimates of impact conditions and transient crater diameters for the majority of impact basins mapped by GRAIL. As the formation of lunar impact basins is associated with the first approximately 700 Myr of the solar system evolution when the impact flux was considerably larger than the present day, our revised impact scaling relationships can aid further analyses and understanding of the extent of impact bombardment on the Moon and terrestrial planets in the early solar system. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - Miljkovic, Katarina AU - Collins, G S AU - Wieczorek, M A AU - Johnson, B C AU - Soderblom, J M AU - Neumann, Gregory A AU - Zuber, Maria T Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 1695 EP - 1712 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 9 SN - 2169-9097, 2169-9097 KW - solar system KW - gravity field KW - impact features KW - Moon KW - crustal thinning KW - mapping KW - impact craters KW - GRAIL KW - lunar craters KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840618354?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=How+the+assumed+size+distribution+of+dust+minerals+affects+the+predicted+ice+forming+nuclei&rft.au=Perlwitz%2C+Jan+P%3BFridlind%2C+A+M%3BGarcia-Pando%2C+C+Perez%3BMiller%2C+R+L%3BKnopf%2C+D+A%3BAnonymous&rft.aulast=Perlwitz&rft.aufirst=Jan&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 65 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - crustal thinning; GRAIL; gravity field; impact craters; impact features; lunar craters; mapping; Moon; solar system DO - http://dx.doi.org/10.1002/2016JE005038 ER - TY - JOUR T1 - Analysis of MESSENGER high-resolution images of Mercury's hollows and implications for hollow formation AN - 1840617351; 2016-098954 AB - High-resolution images from MESSENGER provide morphological information on the nature and origin of Mercury's hollows, small depressions that likely formed when a volatile constituent was lost from the surface. Because graphite may be a component of the low-reflectance material that hosts hollows, we suggest that loss of carbon by ion sputtering or conversion to methane by proton irradiation could contribute to hollows formation. Measurements of widespread hollows in 565 images with pixel scales <20 m indicate that the average depth of hollows is 24 + or - 16 m. We propose that hollows cease to increase in depth when a volatile-depleted lag deposit becomes sufficiently thick to protect the underlying surface. The difficulty of developing a lag on steep topography may account for the common occurrence of hollows on crater central peaks and walls. Disruption of the lag, e.g., by secondary cratering, could restart growth of hollows in a location that had been dormant. Images at extremely high resolution ( approximately 3 m/pixel) show that the edges of hollows are straight, as expected if the margins formed by scarp retreat. These highest-resolution images reveal no superposed impact craters, implying that hollows are very young. The width of hollows within rayed crater Balanchine suggests that the maximum time for lateral growth by 1 cm is approximately 10,000 yr. A process other than entrainment of dust by gases evolved in a steady-state sublimation-like process is likely required to explain the high-reflectance haloes that surround many hollows. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - Blewett, David T AU - Stadermann, Amanda C AU - Susorney, Hannah C AU - Ernst, Carolyn M AU - Xiao, Zhiyong AU - Chabot, Nancy L AU - Denevi, Brett W AU - Murchie, Scott L AU - McCubbin, Francis M AU - Kinczyk, Mallory J AU - Gillis-Davis, Jeffrey J AU - Solomon, Sean C Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 1798 EP - 1813 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 9 SN - 2169-9097, 2169-9097 KW - terrestrial planets KW - planets KW - high-resolution methods KW - craters KW - Mercury Planet KW - surface features KW - MESSENGER Mission KW - reflectance KW - image analysis KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840617351?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Planets&rft.atitle=Analysis+of+MESSENGER+high-resolution+images+of+Mercury%27s+hollows+and+implications+for+hollow+formation&rft.au=Blewett%2C+David+T%3BStadermann%2C+Amanda+C%3BSusorney%2C+Hannah+C%3BErnst%2C+Carolyn+M%3BXiao%2C+Zhiyong%3BChabot%2C+Nancy+L%3BDenevi%2C+Brett+W%3BMurchie%2C+Scott+L%3BMcCubbin%2C+Francis+M%3BKinczyk%2C+Mallory+J%3BGillis-Davis%2C+Jeffrey+J%3BSolomon%2C+Sean+C&rft.aulast=Blewett&rft.aufirst=David&rft.date=2016-09-01&rft.volume=121&rft.issue=9&rft.spage=1798&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2016JE005070 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 66 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - craters; high-resolution methods; image analysis; Mercury Planet; MESSENGER Mission; planets; reflectance; remote sensing; surface features; terrestrial planets DO - http://dx.doi.org/10.1002/2016JE005070 ER - TY - JOUR T1 - Preservation of ancient impact ages on the R chondrite parent body; (super 40) Ar/ (super 39) Ar age of hornblende-bearing R chondrite LAP 04840 AN - 1840615758; 2016-094206 AB - The hornblende- and biotite-bearing R chondrite LAP 04840 is a rare kind of meteorite possibly containing outer solar system water stored during metamorphism or postshock annealing deep within an asteroid. Because little is known regarding its age and origin, we determined (super 40) Ar/ (super 39) Ar ages on hornblende-rich separates of the meteorite, and obtained plateau ages of 4340(+ or -40) to 4380(+ or -30) Ma. These well-defined plateau ages, coupled with evidence for postshock annealing, indicate this meteorite records an ancient shock event and subsequent annealing. The age of 4340-4380 Ma (or 4.34-4.38 Ga) for this and other previously dated R chondrites is much older than most impact events recorded by ordinary chondrites and points to an ancient event or events that predated the late heavy bombardment that is recorded in so many meteorites and lunar samples. Abstract Copyright Published 2016. This article is a U.S. Government work and is in the public domain in the USA. JF - Meteoritics & Planetary Science AU - Righter, Kevin AU - Cosca, Michael A AU - Morgan, L E Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 1678 EP - 1684 PB - Meteoritical Society, Fayetteville, AR VL - 51 IS - 9 SN - 1086-9379, 1086-9379 KW - silicates KW - Ar/Ar KW - stony meteorites KW - parent bodies KW - amphibole group KW - LaPaz Icefield Meteorites KW - LAP 04840 KW - impacts KW - thermal history KW - metamorphism KW - early solar system KW - clinoamphibole KW - meteorites KW - Antarctica KW - dates KW - rumurutiites KW - absolute age KW - hornblende KW - chondrites KW - shock metamorphism KW - preservation KW - chain silicates KW - annealing KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840615758?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Preservation+of+ancient+impact+ages+on+the+R+chondrite+parent+body%3B+%28super+40%29+Ar%2F+%28super+39%29+Ar+age+of+hornblende-bearing+R+chondrite+LAP+04840&rft.au=Righter%2C+Kevin%3BCosca%2C+Michael+A%3BMorgan%2C+L+E&rft.aulast=Righter&rft.aufirst=Kevin&rft.date=2016-09-01&rft.volume=51&rft.issue=9&rft.spage=1678&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12692 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 47 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2016-11-17 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - absolute age; amphibole group; annealing; Antarctica; Ar/Ar; chain silicates; chondrites; clinoamphibole; dates; early solar system; hornblende; impacts; LAP 04840; LaPaz Icefield Meteorites; metamorphism; meteorites; parent bodies; preservation; rumurutiites; shock metamorphism; silicates; stony meteorites; thermal history DO - http://dx.doi.org/10.1111/maps.12692 ER - TY - JOUR T1 - A cold-wet middle-latitude environment on Mars during the Hesperian-Amazonian transition; evidence from northern Arabia valleys and paleolakes AN - 1840614890; 2016-098949 AB - The growing inventory of post-Noachian fluvial valleys may represent a late, widespread episode of aqueous activity on Mars, contrary to the paradigm that fluvial activity largely ceased around the Noachian-Hesperian boundary. Fresh shallow valleys (FSVs) are widespread from approximately 30 to 45 degrees in both hemispheres with a high concentration in northern Arabia Terra. Valleys in northern Arabia Terra characteristically start abruptly on steeper slopes and terminate in topographic depressions at elevations corresponding to model-predicted lake levels. Longer valley systems flowed into and out of chains of paleolakes. Minimum discharges based on the dimensions of the incised channel assuming medium to coarse sand-size grains ranges from tens to hundreds of m (super 3) s (super -1) , respectively, consistent with formation via snowmelt from surface or sub-ice flows. Hydrologic calculations indicate the valleys likely formed in hundreds of years or less, and crater statistics constrain the timing of fluvial activity to between the Hesperian and middle Amazonian. Several craters with channels extending radially outward supports evidence for overflow of interior crater lakes possibly fed by groundwater. Most FSVs occur away from young impact craters which make an association with impact processes improbable. The widespread occurrence of FSVs along with their similar morphology and shared modest state of degradation is consistent with most forming during a global interval of favorable climate, perhaps contemporaneous with alluvial fan formation in equatorial and midlatitudes. Evidence for a snowmelt-based hydrology and considerable depths of water on the landscape in Arabia supports a cold, wet, and possibly habitable environment late in Martian history. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - Wilson, Sharon A AU - Howard, Alan D AU - Moore, Jeffrey M AU - Grant, John A Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 1667 EP - 1694 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 9 SN - 2169-9097, 2169-9097 KW - hydrology KW - Noachian KW - valleys KW - snowmelt KW - Mars KW - paleolakes KW - Hesperian KW - Arabia Terra KW - terrestrial planets KW - planets KW - Amazonian KW - surface features KW - fluvial features KW - climate KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840614890?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Planets&rft.atitle=A+cold-wet+middle-latitude+environment+on+Mars+during+the+Hesperian-Amazonian+transition%3B+evidence+from+northern+Arabia+valleys+and+paleolakes&rft.au=Wilson%2C+Sharon+A%3BHoward%2C+Alan+D%3BMoore%2C+Jeffrey+M%3BGrant%2C+John+A&rft.aulast=Wilson&rft.aufirst=Sharon&rft.date=2016-09-01&rft.volume=121&rft.issue=9&rft.spage=1667&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2016JE005052 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 88 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - Amazonian; Arabia Terra; climate; fluvial features; Hesperian; hydrology; Mars; Noachian; paleolakes; planets; snowmelt; surface features; terrestrial planets; valleys DO - http://dx.doi.org/10.1002/2016JE005052 ER - TY - JOUR T1 - Role of atmospheric chemistry in the climate impacts of stratospheric volcanic injections AN - 1828846231; 2016-087314 JF - Nature Geoscience AU - LeGrande, Allegra N AU - Tsigaridis, Kostas AU - Bauer, Susanne E Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 652 EP - 655 PB - Nature Publishing Group, London VL - 9 IS - 9 SN - 1752-0894, 1752-0894 KW - sulfur dioxide KW - sulfates KW - CMIP5 model KW - atmosphere KW - water vapor KW - climate change KW - gases KW - models KW - stratosphere KW - volcanism KW - eruptions KW - volcanoes KW - aerosols KW - climate forcing KW - geochemistry KW - climate KW - 24:Quaternary geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828846231?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Role+of+atmospheric+chemistry+in+the+climate+impacts+of+stratospheric+volcanic+injections&rft.au=LeGrande%2C+Allegra+N%3BTsigaridis%2C+Kostas%3BBauer%2C+Susanne+E&rft.aulast=LeGrande&rft.aufirst=Allegra&rft.date=2016-09-01&rft.volume=9&rft.issue=9&rft.spage=652&rft.isbn=&rft.btitle=&rft.title=Nature+Geoscience&rft.issn=17520894&rft_id=info:doi/10.1038%2FNGEO2771 L2 - http://www.nature.com/ngeo/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 50 N1 - Document feature - illus. N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - aerosols; atmosphere; climate; climate change; climate forcing; CMIP5 model; eruptions; gases; geochemistry; models; stratosphere; sulfates; sulfur dioxide; volcanism; volcanoes; water vapor DO - http://dx.doi.org/10.1038/NGEO2771 ER - TY - JOUR T1 - Drones that see through waves - preliminary results from airborne fluid lensing for centimetre-scale aquatic conservation AN - 1827896436; PQ0003650490 AB - 1. The use of fluid lensing technology on unmanned aerial vehicles (UAVs, or drones) is presented as a novel means for 3D imaging of aquatic ecosystems from above the water's surface at the centimetre scale. Preliminary results are presented from airborne fluid lensing campaigns conducted over the coral reefs of Ofu Island, American Samoa (2013) and the stromatolite reefs of Shark Bay, Western Australia (2014), covering a combined area of 15 km super(2). These reef ecosystems were revealed with centimetre-scale 2D resolution, and an accompanying 3D bathymetry model was derived using fluid lensing, Structure from Motion and UAV position data. Data products were validated from in situ survey methods including underwater calibration targets, depth measurements and millimetre-scale high-dynamic-range gigapixel photogrammetry. 2. Fluid lensing is an experimental technology that uses water-transmitting wavelengths to passively image underwater objects at high-resolution by exploiting time-varying optical lensing events caused by surface waves. Fluid lensing data are captured from low-altitude, cost-effective electric UAVs to achieve multispectral imagery and bathymetry models at the centimetre scale over regional areas. As a passive system, fluid lensing is presently limited by signal-to-noise ratio and water column inherent optical properties to ~10 m depth over visible wavelengths in clear waters. 3. The datasets derived from fluid lensing present the first centimetre-scale images of a reef acquired from above the ocean surface, without wave distortion. The 3D multispectral data distinguish coral, fish and invertebrates in American Samoa, and reveal previously undocumented, morphologically distinct, stromatolite structures in Shark Bay. These findings suggest fluid lensing and multirotor electric drones represent a promising advance in the remote sensing of aquatic environments at the centimetre scale, or 'reef scale' relevant to the conservation of reef ecosystems. Pending further development and validation of fluid lensing methods, these technologies present a solution for large-scale 3D surveys of shallow aquatic habitats with centimetre-scale spatial resolution and hourly temporal sampling. JF - Aquatic Conservation: Marine and Freshwater Ecosystems AU - Chirayath, Ved AU - Earle, Sylvia A AD - Laboratory for Advanced Sensing, Earth Science Division, NASA Ames Research Center, CA, USA. Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 237 EP - 250 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 26 SN - 1052-7613, 1052-7613 KW - Water Resources Abstracts; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts; ASFA Marine Biotechnology Abstracts KW - ISE, Pacific, American Samoa KW - Reefs KW - Ecosystems KW - ISW, Australia, Western Australia KW - Optical properties KW - Depth measurement KW - Remote sensing KW - spatial discrimination KW - Freshwater KW - Stromatolites KW - Water column KW - Models KW - Marine fish KW - Islands KW - Waves KW - Sampling KW - Wavelength KW - Modelling KW - Marine KW - ISW, Australia, Western Australia, Shark Bay KW - Data processing KW - Surveys KW - Aquatic ecosystems KW - Habitat KW - imaging KW - Bathymetry KW - Aquatic environment KW - Wavelengths KW - Methodology KW - Signal-to-noise ratio KW - Underwater KW - Oceans KW - Scales KW - Coral reefs KW - Drones KW - Conservation KW - Fish KW - Technology KW - SW 0810:General KW - Q4 27790:Fish KW - Q1 08604:Stock assessment and management KW - D 04060:Management and Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1827896436?accountid=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=Aquatic+Conservation%3A+Marine+and+Freshwater+Ecosystems&rft.atitle=Drones+that+see+through+waves+-+preliminary+results+from+airborne+fluid+lensing+for+centimetre-scale+aquatic+conservation&rft.au=Chirayath%2C+Ved%3BEarle%2C+Sylvia+A&rft.aulast=Chirayath&rft.aufirst=Ved&rft.date=2016-09-01&rft.volume=26&rft.issue=&rft.spage=237&rft.isbn=&rft.btitle=&rft.title=Aquatic+Conservation%3A+Marine+and+Freshwater+Ecosystems&rft.issn=10527613&rft_id=info:doi/10.1002%2Faqc.2654 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-10-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Marine fish; Signal-to-noise ratio; Depth measurement; Coral reefs; Fish; Bathymetry; Stromatolites; Methodology; Modelling; Data processing; Optical properties; Remote sensing; spatial discrimination; Habitat; Aquatic ecosystems; imaging; Water column; Aquatic environment; Models; Islands; Scales; Oceans; Drones; Conservation; Waves; Wavelength; Sampling; Reefs; Underwater; Ecosystems; Surveys; Wavelengths; Technology; ISE, Pacific, American Samoa; ISW, Australia, Western Australia, Shark Bay; ISW, Australia, Western Australia; Marine; Freshwater DO - http://dx.doi.org/10.1002/aqc.2654 ER - TY - JOUR T1 - Quantifying the contribution of thermally driven recirculation to a high-ozone event along the Colorado Front Range using lidar AN - 1827890852; PQ0003704551 AB - A high-ozone (O sub(3)) pollution episode was observed on 22 July 2014 during the concurrent "Deriving Information on Surface Conditions from Column and Vertically Resolved Observations Relevant to Air Quality" (DISCOVER-AQ) and "Front Range Air Pollution and Photochemistry Experiment" (FRAPPE) campaigns in northern Colorado. Surface O sub(3) monitors at three regulatory sites exceeded the Environmental Protection Agency (EPA) 2008 National Ambient Air Quality Standard (NAAQS) daily maximum 8h average (MDA8) of 75ppbv. To further characterize the polluted air mass and assess transport throughout the event, measurements are presented from O sub(3) and wind profilers, O sub(3)-sondes, aircraft, and surface-monitoring sites. Observations indicate that thermally driven upslope flow was established throughout the Colorado Front Range during the pollution episode. As the thermally driven flow persisted throughout the day, O sub(3) concentrations increased and affected high-elevation Rocky Mountain sites. These observations, coupled with modeling analyses, demonstrate a westerly return flow of polluted air aloft, indicating that the mountain-plains solenoid circulation was established and impacted surface conditions within the Front Range. Key Points * Thermally driven mountain-plains circulation and polluted return flow aloft exacerbated poor air quality in Colorado's Front Range * Ozone and wind observations are utilized to provide a high-resolution characterization of the air quality episode * Simulations further suggest the downward transport of ozone to sites within the Front Range JF - Journal of Geophysical Research: Atmospheres AU - Sullivan, John T AU - McGee, Thomas J AU - Langford, Andrew O AU - Alvarez, Raul J AU - Senff, Christoph J AU - Reddy, Patrick J AU - Thompson, Anne M AU - Twigg, Laurence W AU - Sumnicht, Grant K AU - Lee, Pius AU - Weinheimer, Andrew AU - Knote, Christoph AU - Long, Russell W AU - Hoff, Raymond M AD - Atmospheric Chemistry and Dynamics Laboratory, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA. Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 10 EP - 10,390 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 121 IS - 17 SN - 2169-897X, 2169-897X KW - Pollution Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Flow KW - Photochemistry KW - Pollution monitoring KW - Pollution dispersion KW - Westerlies KW - Lidar KW - Air quality KW - North America, Rocky Mts. KW - Mountains KW - Ozone in troposphere KW - Aircraft KW - Return Flow KW - Ozone profiles KW - Wind KW - Ozone KW - Air Pollution KW - Air masses KW - Wind shear KW - Atmospheric pollution KW - Simulation Analysis KW - Aircraft observations KW - Simulation KW - Air Masses KW - Lidar observation of atmospheric pollution KW - Environmental protection KW - Air quality standards KW - Air pollution KW - EPA KW - USA, Colorado KW - Numerical simulations KW - Fronts KW - Atmospheric chemistry KW - Lidar applications KW - Standards KW - LIDAR KW - Q2 09102:Institutes and organizations KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1827890852?accountid=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+Geophysical+Research%3A+Atmospheres&rft.atitle=Quantifying+the+contribution+of+thermally+driven+recirculation+to+a+high-ozone+event+along+the+Colorado+Front+Range+using+lidar&rft.au=Sullivan%2C+John+T%3BMcGee%2C+Thomas+J%3BLangford%2C+Andrew+O%3BAlvarez%2C+Raul+J%3BSenff%2C+Christoph+J%3BReddy%2C+Patrick+J%3BThompson%2C+Anne+M%3BTwigg%2C+Laurence+W%3BSumnicht%2C+Grant+K%3BLee%2C+Pius%3BWeinheimer%2C+Andrew%3BKnote%2C+Christoph%3BLong%2C+Russell+W%3BHoff%2C+Raymond+M&rft.aulast=Sullivan&rft.aufirst=John&rft.date=2016-09-01&rft.volume=121&rft.issue=17&rft.spage=10&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2016JD025229 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-10-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Photochemistry; Air pollution; Pollution monitoring; Pollution dispersion; Westerlies; LIDAR; Environmental protection; Ozone; Air masses; Wind shear; Atmospheric pollution; Aircraft observations; Air quality; Lidar observation of atmospheric pollution; Air quality standards; Ozone in troposphere; Fronts; Numerical simulations; Lidar applications; Ozone profiles; Mountains; EPA; Aircraft; Atmospheric chemistry; Simulation; Lidar; Wind; Air Pollution; Flow; Simulation Analysis; Return Flow; Standards; Air Masses; North America, Rocky Mts.; USA, Colorado DO - http://dx.doi.org/10.1002/2016JD025229 ER - TY - JOUR T1 - Transformations to granular zircon revealed; twinning, reidite, and ZrO (sub 2) in shocked zircon from Meteor Crater (Arizona, USA) AN - 1824213063; 2016-083462 AB - Granular zircon in impact environments has long been recognized but remains poorly understood due to lack of experimental data to identify mechanisms involved in its genesis. Meteor Crater in Arizona (USA) contains abundant evidence of shock metamorphism, including shocked quartz, the high-pressure polymorphs coesite and stishovite, diaplectic SiO (sub 2) glass, and lechatelierite (fused SiO (sub 2) ). Here we report the presence of granular zircon, a new shocked-mineral discovery at Meteor Crater, that preserve critical orientation evidence of specific transformations that occurred during formation at extreme impact conditions. The zircon grains occur as aggregates of sub-micrometer neoblasts in highly shocked Coconino Sandstone (CS) comprised of lechatelierite. Electron backscatter diffraction shows that each grain consists of multiple domains, some with boundaries disoriented by 65 degrees around , a known {112} shock-twin orientation. Other domains have {001} in alignment with {110} of neighboring domains, consistent with the former presence of the high-pressure ZrSiO (sub 4) polymorph reidite. Additionally, nearly all zircon preserve ZrO (sub 2) + SiO (sub 2) , providing evidence of partial dissociation. The genesis of CS granular zircon started with detrital zircon that experienced shock twinning and reidite formation at pressures from 20 to 30 GPa, ultimately yielding a phase that retained crystallographic memory; this phase subsequently recrystallized to systematically oriented zircon neoblasts, and in some areas partially dissociated to ZrO (sub 2) The lechatelierite matrix, experimentally constrained to form at >2000 degrees C, provided the ultrahigh-temperature environment for zircon dissociation ( approximately 1670 degrees C) and neoblast formation. The capacity of granular zircon to preserve a cumulative pressure-temperature record has not been recognized previously, and provides a new method for investigating histories of impact-related mineral transformations in the crust at conditions far beyond those at which most rocks melt. JF - Geology (Boulder) AU - Cavosie, Aaron J AU - Timms, Nicholas E AU - Erickson, Timmons M AU - Hagerty, Justin J AU - Hoerz, Friedrich Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 703 EP - 706 PB - Geological Society of America (GSA), Boulder, CO VL - 44 IS - 9 SN - 0091-7613, 0091-7613 KW - United States KW - silicates KW - Coconino County Arizona KW - impact features KW - silica minerals KW - sandstone KW - meteor craters KW - twinning KW - temperature KW - reidite KW - sedimentary rocks KW - granular materials KW - orthosilicates KW - framework silicates KW - Meteor Crater KW - zircon group KW - pressure KW - zircon KW - impacts KW - metamorphism KW - high pressure KW - nesosilicates KW - lechatelierite KW - Arizona KW - impact craters KW - clastic rocks KW - shock metamorphism KW - high temperature KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824213063?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Transformations+to+granular+zircon+revealed%3B+twinning%2C+reidite%2C+and+ZrO+%28sub+2%29+in+shocked+zircon+from+Meteor+Crater+%28Arizona%2C+USA%29&rft.au=Cavosie%2C+Aaron+J%3BTimms%2C+Nicholas+E%3BErickson%2C+Timmons+M%3BHagerty%2C+Justin+J%3BHoerz%2C+Friedrich&rft.aulast=Cavosie&rft.aufirst=Aaron&rft.date=2016-09-01&rft.volume=44&rft.issue=9&rft.spage=703&rft.isbn=&rft.btitle=&rft.title=Geology+%28Boulder%29&rft.issn=00917613&rft_id=info:doi/10.1130%2FG38043.1 L2 - http://geology.gsapubs.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, 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 - 2016-01-01 N1 - Number of references - 32 N1 - PubXState - CO N1 - Document feature - illus. incl. sketch map N1 - SuppNotes - GSA Data Repository item 2016228 N1 - Last updated - 2016-09-29 N1 - CODEN - GLGYBA N1 - SubjectsTermNotLitGenreText - Arizona; clastic rocks; Coconino County Arizona; framework silicates; granular materials; high pressure; high temperature; impact craters; impact features; impacts; lechatelierite; metamorphism; Meteor Crater; meteor craters; nesosilicates; orthosilicates; pressure; reidite; sandstone; sedimentary rocks; shock metamorphism; silica minerals; silicates; temperature; twinning; United States; zircon; zircon group DO - http://dx.doi.org/10.1130/G38043.1 ER - TY - JOUR T1 - Evidence for a dynamic nanodust cloud enveloping the Moon AN - 1819144567; PQ0003641601 AB - The exospheres that surround airless bodies such as the Moon are tenuous, atmosphere-like layers whose constituent particles rarely collide with one another. Some particles contained within such exospheres are the product of direct interactions between airless bodies and the space environment, and offer insights into space weathering processes. NASA's Lunar Atmosphere and Dust Environment Explorer (LADEE) mission studied the Moon's exospheric constituents in situ and detected a permanent dust exosphere of particles with radii as small as 300nm. Here we present evidence from LADEE spectral data for an additional fluctuating nanodust exosphere at the Moon containing a population of particles sufficiently dense to be detectable via scattered sunlight. We compare two anti-Sun spectral observations: one near the peak of the Quadrantid meteoroid stream, the other during a period of comparatively weak stream activity. The former shows a negative spectral slope consistent with backscattering of sunlight by nanodust grains with radii less than 20 to 30nm; the latter has a flatter spectral slope. We hypothesize that a spatially and temporally variable nanodust exosphere may exist at the Moon, and that it is modulated by changes in meteoroid impact rates, such as during encounters with meteoroid streams. The findings suggest that similar nanodust exospheres-and the particle ejection and transport processes that form them-may occur at other airless bodies. JF - Nature Geoscience AU - Wooden, D H AU - Cook, A M AU - Colaprete, A AU - Glenar, DA AU - Stubbs, T J AU - Shirley, M AD - NASA Ames Research Center, Moffett Field, California 94035, USA Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 665 EP - 668 PB - Nature Publishing Group, The Macmillan Building London N1 9XW United Kingdom VL - 9 IS - 9 SN - 1752-0894, 1752-0894 KW - Ecology Abstracts; Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Streams KW - Atmosphere KW - Dust KW - Sunlight KW - Weathering KW - Transport processes KW - Slopes KW - Meteorite impact effects KW - Atmospheric particulates KW - Data processing KW - Moon KW - Environmental impact KW - Lunar atmosphere KW - Dusts KW - Ecosystem disturbance KW - Clouds KW - Stream KW - Grain KW - Eolian dust KW - Q2 09262:Methods and instruments KW - M2 523.3:Earth-Moon System (523.3) KW - SW 0810:General KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819144567?accountid=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=Nature+Geoscience&rft.atitle=Evidence+for+a+dynamic+nanodust+cloud+enveloping+the+Moon&rft.au=Wooden%2C+D+H%3BCook%2C+A+M%3BColaprete%2C+A%3BGlenar%2C+DA%3BStubbs%2C+T+J%3BShirley%2C+M&rft.aulast=Wooden&rft.aufirst=D&rft.date=2016-09-01&rft.volume=9&rft.issue=9&rft.spage=665&rft.isbn=&rft.btitle=&rft.title=Nature+Geoscience&rft.issn=17520894&rft_id=info:doi/10.1038%2Fngeo2779 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-09-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Atmospheric particulates; Moon; Stream; Environmental impact; Weathering; Transport processes; Ecosystem disturbance; Dust; Eolian dust; Clouds; Data processing; Grain; Sunlight; Atmosphere; Streams; Lunar atmosphere; Meteorite impact effects; Slopes; Dusts DO - http://dx.doi.org/10.1038/ngeo2779 ER - TY - JOUR T1 - Evolutionary tradeoffs in cellular composition across diverse bacteria AN - 1815706002; PQ0003588420 AB - One of the most important classic and contemporary interests in biology is the connection between cellular composition and physiological function. Decades of research have allowed us to understand the detailed relationship between various cellular components and processes for individual species, and have uncovered common functionality across diverse species. However, there still remains the need for frameworks that can mechanistically predict the tradeoffs between cellular functions and elucidate and interpret average trends across species. Here we provide a comprehensive analysis of how cellular composition changes across the diversity of bacteria as connected with physiological function and metabolism, spanning five orders of magnitude in body size. We present an analysis of the trends with cell volume that covers shifts in genomic, protein, cellular envelope, RNA and ribosomal content. We show that trends in protein content are more complex than a simple proportionality with the overall genome size, and that the number of ribosomes is simply explained by cross-species shifts in biosynthesis requirements. Furthermore, we show that the largest and smallest bacteria are limited by physical space requirements. At the lower end of size, cell volume is dominated by DNA and protein content-the requirement for which predicts a lower limit on cell size that is in good agreement with the smallest observed bacteria. At the upper end of bacterial size, we have identified a point at which the number of ribosomes required for biosynthesis exceeds available cell volume. Between these limits we are able to discuss systematic and dramatic shifts in cellular composition. Much of our analysis is connected with the basic energetics of cells where we show that the scaling of metabolic rate is surprisingly superlinear with all cellular components. JF - ISME Journal AU - Kempes, Christopher P AU - Wang, Lawrence AU - Amend, Jan P AU - Doyle, John AU - Hoehler, Tori AD - The Santa Fe Institute, Santa Fe, NM, USA; Control and Dynamical Systems, California Institute of Technology, Pasadena, CA, USA; NASA Ames Research Center, Moffett Field, CA, USA Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 2145 EP - 2157 PB - Nature Publishing Group, The Macmillan Building London N1 9XW United Kingdom VL - 10 IS - 9 SN - 1751-7362, 1751-7362 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology; Environment Abstracts; Ecology Abstracts KW - Genomes KW - Bacteria KW - Biosynthesis KW - Physiology KW - Metabolic rate KW - Ribosomes KW - rRNA KW - Envelopes KW - RNA KW - Cell size KW - Body size KW - DNA KW - Proteins KW - genomics KW - Scaling KW - Metabolism KW - Evolution KW - J 02310:Genetics & Taxonomy KW - D 04040:Ecosystem and Ecology Studies KW - ENA 21:Wildlife KW - A 01300:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815706002?accountid=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=ISME+Journal&rft.atitle=Evolutionary+tradeoffs+in+cellular+composition+across+diverse+bacteria&rft.au=Kempes%2C+Christopher+P%3BWang%2C+Lawrence%3BAmend%2C+Jan+P%3BDoyle%2C+John%3BHoehler%2C+Tori&rft.aulast=Kempes&rft.aufirst=Christopher&rft.date=2016-09-01&rft.volume=10&rft.issue=9&rft.spage=2145&rft.isbn=&rft.btitle=&rft.title=ISME+Journal&rft.issn=17517362&rft_id=info:doi/10.1038%2Fismej.2016.21 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Last updated - 2016-10-12 N1 - SubjectsTermNotLitGenreText - Genomes; rRNA; Envelopes; RNA; Cell size; DNA; Metabolic rate; Body size; Ribosomes; genomics; Scaling; Evolution; Biosynthesis; Bacteria; Physiology; Proteins; Metabolism DO - http://dx.doi.org/10.1038/ismej.2016.21 ER - TY - JOUR T1 - Synthesis of akaganeite in the presence of sulfate; implications for akaganeite formation in Yellowknife Bay, Gale Crater, Mars AN - 1815668109; 2016-076496 AB - Akaganeite, a Cl-bearing Fe(III) (hydr)oxide, has been recently discovered in Yellowknife Bay in Gale crater on Mars by the Mars Science Laboratory (MSL) Curiosity Rover. Akaganeite was associated with sulfate and sulfide minerals at Yellowknife Bay indicating that sulfate ions could be present in solution during akaganeite formation. The mechanism and conditions of akaganeite formation in the Yellowknife Bay mudstone are unknown. We investigated formation of akaganeite through hydrolysis of ferric chloride solution in the presence of 0, 0.01, 0.05, 0.1 and 0.2 M sulfate and at initial pH of 1.5, 2 and 4 at 90 degrees C. Mineralogy of the precipitated Fe(III) phases was characterized by X-ray diffraction and infrared spectroscopy. The precipitates were also acid digested to determine total sulfate and chloride contents. Akaganeite and natrojarosite formed at initial solution pH of 1.5; akaganeite, goethite and natrojarosite precipitated in initial pH 2 solutions and goethite, hematite and 2-line ferrihydrite precipitated at initial solution pH of 4. Sulfate addition did not inhibit akaganeite formation. Increasing initial solution sulfate concentrations resulted in increasing sulfate to chloride ratio in the precipitated akaganeite. Infrared spectroscopy revealed akaganeite bands at approximately 2 mu m (H (sub 2) O combination band) and at approximately 2.46 mu m (OH combination band). The H (sub 2) O combination band position linearly correlated with total chloride content in akaganeite. Overall, laboratory studies demonstrated formation of akaganeite at initial sulfate concentration < or =0.2 M (sulfate to chloride molar ratio < or =0.3) and pH < or = 2, implying that those conditions might prevail (perhaps as micro-environments) during akaganeite formation in Yellowknife Bay mudstone. The occurrence of Fe(II) sulfides (pyrite and pyrrhotite) in Yellowknife Bay mudstone is a potential acidity source. Dissolution of sulfide minerals might occur under localized oxidizing water-limiting Cl-rich conditions creating favorable environments for akaganeite formation. JF - Geochimica et Cosmochimica Acta AU - Peretyazhko, Tanya S AU - Fox, A AU - Sutter, B AU - Niles, P B AU - Adams, M AU - Morris, R V AU - Ming, D W Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 284 EP - 296 PB - Elsevier, New York, NY VL - 188 SN - 0016-7037, 0016-7037 KW - halides KW - iron oxides KW - X-ray diffraction data KW - mass spectra KW - hydrolysis KW - Mars KW - infrared spectra KW - Gale Crater KW - FTIR spectra KW - sedimentary rocks KW - mineral composition KW - akaganeite KW - chlorides KW - oxides KW - spectra KW - synthesis KW - geochemistry KW - pH KW - Yellowknife Bay KW - mudstone KW - sulfates KW - natrojarosite KW - cosmochemistry KW - terrestrial planets KW - jarosite KW - ICP mass spectra KW - planets KW - precipitation KW - sedimentary petrology KW - clastic rocks KW - 04:Extraterrestrial geology KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815668109?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Synthesis+of+akaganeite+in+the+presence+of+sulfate%3B+implications+for+akaganeite+formation+in+Yellowknife+Bay%2C+Gale+Crater%2C+Mars&rft.au=Peretyazhko%2C+Tanya+S%3BFox%2C+A%3BSutter%2C+B%3BNiles%2C+P+B%3BAdams%2C+M%3BMorris%2C+R+V%3BMing%2C+D+W&rft.aulast=Peretyazhko&rft.aufirst=Tanya&rft.date=2016-09-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 85 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-09-01 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - akaganeite; chlorides; clastic rocks; cosmochemistry; FTIR spectra; Gale Crater; geochemistry; halides; hydrolysis; ICP mass spectra; infrared spectra; iron oxides; jarosite; Mars; mass spectra; mineral composition; mudstone; natrojarosite; oxides; pH; planets; precipitation; sedimentary petrology; sedimentary rocks; spectra; sulfates; synthesis; terrestrial planets; X-ray diffraction data; Yellowknife Bay DO - http://dx.doi.org/10.1016/j.gca.2016.06.002 ER - TY - JOUR T1 - The CO chondrites; major recent Antarctic finds, their thermal and radiation history, and describing the metamorphic history of members of the class AN - 1815665247; 2016-076487 AB - Thermoluminescence (TL) properties of 29 CO chondrites from the Miller Range (MIL) and five chondrites from the Dominion Range (DOM) have been measured. MIL has a relatively strong natural TL signal (19.6 + or - 14.7 krad), while some of the DOM samples have a very weak natural TL signal (<1 krad) whereas others resemble the MIL meteorites. I argue that MIL and some of the DOM samples had a normal perihelion ( approximately 1.0 AU) and terrestrial age of approximately 450-700 ka, while some of the DOM samples have a terrestrial age of approximately 100 ka but a perihelion of approximately 0.8 AU. The DOM meteorites also show considerable heterogeneity in their induced TL properties, also suggesting that the DOM fragments represent more than one fall. The induced TL data for the MIL samples studied here are consistent with them all being from a single fragmented meteorite. Small (50 mg) chips have TL properties similar to 500 mg chips, so that the smaller chips are representative, although samples taken from original masses less than approximately 2 g have low natural TL suggesting that they were heated during atmospheric fall. The properties of CO chondrites are reviewed in terms of their petrologic types. Correlations between TL sensitivity, the most quantitative technique for evaluating metamorphic alteration in CO chondrites, and data for olivine composition and heterogeneity, matrix composition, inert gas content, metal composition (Ni, Co, and Cr in the kamacite), bulk carbon, C and O isotopes, graphite ordering, spectral reflectance at 0.8 mu m, and textural characteristics of the ameboid olivine and Ca-rich inclusions are examined. The petrographic types appear to be largely metamorphic in origin with perhaps a minor role for metasomatism. Contrary to recent proposals it is here argued that petrologic type definitions should (1) be specific enough to be meaningful, but broad enough to be simple in application and robust to new developments, (2) be descriptive and not interpretative, (3) should not oversimplify and obscure important class-to-class differences, and (4) take account of all the available information, while avoiding reliance on any one technique or single observation whose application is based on interpretation. With these considerations in mind the petrographic type definitions for CO chondrites are restated and the petrologic type of 3.2 assigned to both the MIL and DOM CO chondrites. JF - Geochimica et Cosmochimica Acta AU - Sears, Derek W G Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 106 EP - 124 PB - Elsevier, New York, NY VL - 188 SN - 0016-7037, 0016-7037 KW - Miller Range Meteorites KW - alteration KW - experimental studies KW - stony meteorites KW - textures KW - statistical analysis KW - correlation KW - thermoluminescence KW - properties KW - kamacite KW - carbonaceous chondrites KW - thermal history KW - metasomatism KW - metamorphism KW - CO chondrites KW - meteorites KW - Dominion Range Meteorites KW - mineral composition KW - sensitivity analysis KW - metals KW - mathematical methods KW - alloys KW - chondrites KW - 05B:Petrology of meteorites and tektites KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815665247?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=The+CO+chondrites%3B+major+recent+Antarctic+finds%2C+their+thermal+and+radiation+history%2C+and+describing+the+metamorphic+history+of+members+of+the+class&rft.au=Sears%2C+Derek+W+G&rft.aulast=Sears&rft.aufirst=Derek+W&rft.date=2016-09-01&rft.volume=188&rft.issue=&rft.spage=106&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2016.05.033 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 56 N1 - PubXState - NY N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2016-09-01 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alloys; alteration; carbonaceous chondrites; chondrites; CO chondrites; correlation; Dominion Range Meteorites; experimental studies; kamacite; mathematical methods; metals; metamorphism; metasomatism; meteorites; Miller Range Meteorites; mineral composition; properties; sensitivity analysis; statistical analysis; stony meteorites; textures; thermal history; thermoluminescence DO - http://dx.doi.org/10.1016/j.gca.2016.05.033 ER - TY - JOUR T1 - Eridania Basin; an ancient paleolake floor as the next landing site for the Mars 2020 rover AN - 1812216559; 2016-068982 JF - Icarus AU - Pajola, Maurizio AU - Rossato, Sandro AU - Carter, John AU - Baratti, Emanuele AU - Pozzobon, Riccardo AU - Erculiani, Marco Sergio AU - Coradini, Marcello AU - McBride, Karen Y1 - 2016/09/01/ PY - 2016 DA - 2016 Sep 01 SP - 163 EP - 182 PB - Elsevier, New York, NY VL - 275 SN - 0019-1035, 0019-1035 KW - silicates KW - imagery KW - terrestrial environment KW - Spirit Rover KW - astrobiology KW - Mars KW - landing sites KW - paleoclimatology KW - Mars Exploration Rover KW - Mars 2020 Mission KW - paludal environment KW - Gusev Crater KW - Eridania Basin KW - CRISM KW - sulfates KW - OMEGA KW - paleolakes KW - weathering KW - clay minerals KW - terrestrial planets KW - planets KW - lacustrine environment KW - sheet silicates KW - Ma'adim Vallis KW - preservation KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812216559?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Eridania+Basin%3B+an+ancient+paleolake+floor+as+the+next+landing+site+for+the+Mars+2020+rover&rft.au=Pajola%2C+Maurizio%3BRossato%2C+Sandro%3BCarter%2C+John%3BBaratti%2C+Emanuele%3BPozzobon%2C+Riccardo%3BErculiani%2C+Marco+Sergio%3BCoradini%2C+Marcello%3BMcBride%2C+Karen&rft.aulast=Pajola&rft.aufirst=Maurizio&rft.date=2016-09-01&rft.volume=275&rft.issue=&rft.spage=163&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.03.029 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 138 N1 - PubXState - NY N1 - Document feature - illus. incl. 4 tables, geol. sketch maps N1 - Last updated - 2016-08-18 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - astrobiology; clay minerals; CRISM; Eridania Basin; Gusev Crater; imagery; lacustrine environment; landing sites; Ma'adim Vallis; Mars; Mars 2020 Mission; Mars Exploration Rover; OMEGA; paleoclimatology; paleolakes; paludal environment; planets; preservation; sheet silicates; silicates; Spirit Rover; sulfates; terrestrial environment; terrestrial planets; weathering DO - http://dx.doi.org/10.1016/j.icarus.2016.03.029 ER - TY - JOUR T1 - Development of HPLC-Orbitrap method for identification of N-bearing molecules in complex organic material relevant to planetary environments AN - 1812216147; 2016-068991 JF - Icarus AU - Gautier, Thomas AU - Schmitz-Afonso, Isabelle AU - Touboul, David AU - Szopa, Cyril AU - Buch, Arnaud AU - Carrasco, Nathalie Y1 - 2016/09/01/ PY - 2016 DA - 2016 Sep 01 SP - 259 EP - 266 PB - Elsevier, New York, NY VL - 275 SN - 0019-1035, 0019-1035 KW - methods KW - tholins KW - icy satellites KW - development KW - nitrogen KW - laboratory studies KW - Cassini-Huygens Mission KW - isomers KW - Titan Satellite KW - satellites KW - liquid chromatography KW - chromatography KW - experimental studies KW - atmosphere KW - mass spectroscopy KW - Orbitrap KW - planets KW - organic compounds KW - identification KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - aerosols KW - spectroscopy KW - aromatic hydrocarbons KW - 04:Extraterrestrial geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812216147?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Development+of+HPLC-Orbitrap+method+for+identification+of+N-bearing+molecules+in+complex+organic+material+relevant+to+planetary+environments&rft.au=Gautier%2C+Thomas%3BSchmitz-Afonso%2C+Isabelle%3BTouboul%2C+David%3BSzopa%2C+Cyril%3BBuch%2C+Arnaud%3BCarrasco%2C+Nathalie&rft.aulast=Gautier&rft.aufirst=Thomas&rft.date=2016-09-01&rft.volume=275&rft.issue=&rft.spage=259&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.03.007 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 33 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-08-18 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - aerosols; aromatic hydrocarbons; atmosphere; Cassini-Huygens Mission; chromatography; development; experimental studies; hydrocarbons; icy satellites; identification; isomers; laboratory studies; liquid chromatography; mass spectroscopy; methods; nitrogen; Orbitrap; organic compounds; planets; polycyclic aromatic hydrocarbons; satellites; spectroscopy; tholins; Titan Satellite DO - http://dx.doi.org/10.1016/j.icarus.2016.03.007 ER - TY - JOUR T1 - An AERONET-based aerosol classification using the Mahalanobis distance AN - 1808667500; PQ0003407670 AB - We present an aerosol classification based on AERONET aerosol data from 1993 to 2012. We used the AERONET Level 2.0 almucantar aerosol retrieval products to define several reference aerosol clusters which are characteristic of the following general aerosol types: Urban-Industrial, Biomass Burning, Mixed Aerosol, Dust, and Maritime. The classification of a particular aerosol observation as one of these aerosol types is determined by its five-dimensional Mahalanobis distance to each reference cluster. We have calculated the fractional aerosol type distribution at 190 AERONET sites, as well as the monthly variation in aerosol type at those locations. The results are presented on a global map and individually in the supplementary material. Our aerosol typing is based on recognizing that different geographic regions exhibit characteristic aerosol types. To generate reference clusters we only keep data points that lie within a Mahalanobis distance of 2 from the centroid. Our aerosol characterization is based on the AERONET retrieved quantities, therefore it does not include low optical depth values. The analysis is based on "point sources" (the AERONET sites) rather than globally distributed values. The classifications obtained will be useful in interpreting aerosol retrievals from satellite borne instruments. JF - Atmospheric Environment AU - Hamill, Patrick AU - Giordano, Marco AU - Ward, Carolyne AU - Giles, David AU - Holben, Brent AD - San Jose State University, San Jose, California and NASA Ames Research Center, Moffett Field, CA, USA Y1 - 2016/09// PY - 2016 DA - September 2016 SP - 213 EP - 233 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 140 SN - 1352-2310, 1352-2310 KW - Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Environment Abstracts; Oceanic Abstracts; Water Resources Abstracts KW - Atmospheric aerosols KW - Aerosol typing KW - AERONET KW - Mahalanobis distance KW - Seasonal aerosol variation KW - High AOD events KW - Remote Sensing KW - Aerosol Robotic Network (AERONET) KW - Satellite Technology KW - Atmospheric particulates KW - Aerosols KW - Combustion products KW - Remote sensing KW - Biomass KW - Dusts KW - Satellites KW - Dust KW - Optical analysis KW - Incineration KW - Classification KW - Burning KW - Aerosol observations KW - Eolian dust KW - Q2 09243:Structure, mechanics and thermodynamics KW - M2 551.510.42:Air Pollution (551.510.42) KW - SW 0810:General KW - O 7060:Navigation and Communications KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808667500?accountid=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+Environment&rft.atitle=An+AERONET-based+aerosol+classification+using+the+Mahalanobis+distance&rft.au=Hamill%2C+Patrick%3BGiordano%2C+Marco%3BWard%2C+Carolyne%3BGiles%2C+David%3BHolben%2C+Brent&rft.aulast=Hamill&rft.aufirst=Patrick&rft.date=2016-09-01&rft.volume=140&rft.issue=&rft.spage=213&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2Fj.atmosenv.2016.06.002 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Atmospheric particulates; Aerosols; Classification; Eolian dust; Dust; Aerosol Robotic Network (AERONET); Aerosol observations; Optical analysis; Combustion products; Remote sensing; Burning; Biomass; Satellites; Remote Sensing; Satellite Technology; Incineration; Dusts DO - http://dx.doi.org/10.1016/j.atmosenv.2016.06.002 ER - TY - JOUR T1 - Was Venus the first habitable world of our solar system? AN - 1863567190; 2017-007393 AB - Present-day Venus is an inhospitable place with surface temperatures approaching 750 K and an atmosphere 90 times as thick as Earth's. Billions of years ago the picture may have been very different. We have created a suite of 3-D climate simulations using topographic data from the Magellan mission, solar spectral irradiance estimates for 2.9 and 0.715 Gya, present-day Venus orbital parameters, an ocean volume consistent with current theory, and an atmospheric composition estimated for early Venus. Using these parameters we find that such a world could have had moderate temperatures if Venus had a prograde rotation period slower than approximately 16 Earth days, despite an incident solar flux 46-70% higher than Earth receives. At its current rotation period, Venus's climate could have remained habitable until at least 0.715 Gya. These results demonstrate the role rotation and topography play in understanding the climatic history of Venus-like exoplanets discovered in the present epoch. Abstract Copyright (2016), . The Authors. JF - Geophysical Research Letters AU - Way, Michael J AU - Del Genio, Anthony D AU - Kiang, Nancy Y AU - Sohl, Linda E AU - Grinspoon, David H AU - Aleinov, Igor AU - Kelley, Maxwell AU - Clune, Thomas Y1 - 2016/08/28/ PY - 2016 DA - 2016 Aug 28 SP - 8376 EP - 8383 PB - American Geophysical Union, Washington, DC VL - 43 IS - 16 SN - 0094-8276, 0094-8276 KW - water KW - solar system KW - general circulation models KW - three-dimensional models KW - Magellan Program KW - isotopes KW - orbits KW - isotope ratios KW - Venus KW - atmosphere KW - astrobiology KW - stable isotopes KW - temperature KW - nitrogen KW - terrestrial planets KW - planets KW - volatiles KW - topography KW - D/H KW - rotation KW - hydrogen KW - chemical composition KW - climate KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1863567190?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Was+Venus+the+first+habitable+world+of+our+solar+system%3F&rft.au=Way%2C+Michael+J%3BDel+Genio%2C+Anthony+D%3BKiang%2C+Nancy+Y%3BSohl%2C+Linda+E%3BGrinspoon%2C+David+H%3BAleinov%2C+Igor%3BKelley%2C+Maxwell%3BClune%2C+Thomas&rft.aulast=Way&rft.aufirst=Michael&rft.date=2016-08-28&rft.volume=43&rft.issue=16&rft.spage=8376&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2016GL069790 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2017-01-01 N1 - Number of references - 53 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2017-02-02 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - astrobiology; atmosphere; chemical composition; climate; D/H; general circulation models; hydrogen; isotope ratios; isotopes; Magellan Program; nitrogen; orbits; planets; rotation; solar system; stable isotopes; temperature; terrestrial planets; three-dimensional models; topography; Venus; volatiles; water DO - http://dx.doi.org/10.1002/2016GL069790 ER - TY - NEWS T1 - Power of Pink Provides NASA with Pressure Pictures AN - 1813147287 JF - UPI Space Daily AU - Jim Banke for NASA Aeronautics Research Mission Directorate Y1 - 2016/08/23/ PY - 2016 DA - 2016 Aug 23 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1813147287?accountid=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=Power+of+Pink+Provides+NASA+with+Pressure+Pictures&rft.au=Jim+Banke+for+NASA+Aeronautics+Research+Mission+Directorate&rft.aulast=Jim+Banke+for+NASA+Aeronautics+Research+Mission+Directorate&rft.aufirst=&rft.date=2016-08-23&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 - 2016-08-23 ER - TY - JOUR T1 - Constraints on formation and evolution of the lunar crust from feldspathic granulitic breccias NWA 3163 and 4881 AN - 1812219050; 2016-069284 AB - Lunar granulitic meteorites provide new constraints on the composition and evolution of the lunar crust as they are potentially derived from outside the Apollo and Luna landing sites. Northwest Africa (NWA) 3163, the focus of this study, and its paired stones NWA 4881 and NWA 4483, are shocked granulitic noritic anorthosites. They are petrographically and compositionally distinct from the Apollo granulites and noritic anorthosites. Northwest Africa 3163 is REE-depleted by an order of magnitude compared to Apollo granulites and is one of the most trace element depleted lunar samples studied to date. New in-situ mineral compositional data and Rb-Sr, Ar-Ar isotopic systematics are used to evaluate the petrogenetic history of NWA 3163 (and its paired stones) within the context of early lunar evolution and the bulk composition of the lunar highlands crust. The NWA 3163 protolith was the likely product of reworked lunar crust with a previous history of heavy REE depletion. The bulk feldspathic and pyroxene-rich fragments have (super 87) Sr/ (super 86) Sr that are indistinguishable and average 0.699282 + or - 0.000007 (2sigma ). A calculated source model Sr T (sub RD) age of 4.340 + or - 0.057 Ga is consistent with (1) the recently determined young FAS (Ferroan Anorthosite) age of 4.360 + or - 0.003 Ga for FAS 60025, (2) (super 142) Nd model ages for the closure of the Sm-Nd system for the mantle source reservoirs of the Apollo mare basalts (4.355-4.314 Ga) and (3) a prominent age peak in the Apollo lunar zircon record (c. 4.345 Ga). These ages are approximately 100 Myr younger than predicted timescales for complete LMO crystallization ( approximately 10 Myrs after Moon formation, Elkins-Tanton et al., 2011). This supports a later, major event during lunar evolution associated with crustal reworking due to magma ocean cumulate overturn, serial magmatism, or a large impact event leading to localized or global crustal melting and/or exhumation. The Ar-Ar isotopic systematics on aliquots of paired stone NWA 4881 are consistent with an impact event at > or = 3.5 Ga. This is inferred to record the event that induced granularization of NWA 3163 (and paired rocks). A later event is also recorded at approximately 2 Ga by Ar-Ar isotopes is consistent with an increase in the number of impacts on the lunar surface at this time (Fernandes et al., 2013). Northwest Africa 3163 and its paired stones therefore record a c. 2.4 Gyr record of lunar crustal production, metamorphism, brecciation, impacts and eventual ejection from the lunar surface. JF - Geochimica et Cosmochimica Acta AU - McLeod, Claire L AU - Brandon, Alan D AU - Fernandes, Vera A AU - Peslier, Anne H AU - Fritz, Joerg AU - Lapen, Thomas AU - Shafer, John T AU - Butcher, Alan R AU - Irving, Anthony J Y1 - 2016/08/15/ PY - 2016 DA - 2016 Aug 15 SP - 350 EP - 374 PB - Elsevier, New York, NY VL - 187 SN - 0016-7037, 0016-7037 KW - silicates KW - Northwest Africa Meteorites KW - granulite facies KW - isotopes KW - igneous rocks KW - mass spectra KW - Apollo Program KW - stable isotopes KW - Rb/Sr KW - meteorites KW - plutonic rocks KW - mineral composition KW - aluminosilicates KW - dates KW - absolute age KW - Archean KW - spectra KW - norite KW - P-T conditions KW - Ar/Ar KW - alkaline earth metals KW - NWA 4881 KW - breccia KW - Precambrian KW - Moon KW - textures KW - isotope ratios KW - electron microscopy data KW - cosmochemistry KW - metamorphism KW - anorthosite KW - ICP mass spectra KW - Sr-87/Sr-86 KW - metals KW - NWA 3163 KW - lunar crust KW - crystallization KW - gabbros KW - strontium KW - shock metamorphism KW - SEM data KW - crust KW - backscattering KW - maskelynite KW - facies KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812219050?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Constraints+on+formation+and+evolution+of+the+lunar+crust+from+feldspathic+granulitic+breccias+NWA+3163+and+4881&rft.au=McLeod%2C+Claire+L%3BBrandon%2C+Alan+D%3BFernandes%2C+Vera+A%3BPeslier%2C+Anne+H%3BFritz%2C+Joerg%3BLapen%2C+Thomas%3BShafer%2C+John+T%3BButcher%2C+Alan+R%3BIrving%2C+Anthony+J&rft.aulast=McLeod&rft.aufirst=Claire&rft.date=2016-08-15&rft.volume=187&rft.issue=&rft.spage=350&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2016.04.032 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 144 N1 - PubXState - NY N1 - Document feature - illus. incl. 5 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-08-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - absolute age; alkaline earth metals; aluminosilicates; anorthosite; Apollo Program; Ar/Ar; Archean; backscattering; breccia; cosmochemistry; crust; crystallization; dates; electron microscopy data; facies; gabbros; granulite facies; ICP mass spectra; igneous rocks; isotope ratios; isotopes; lunar crust; maskelynite; mass spectra; metals; metamorphism; meteorites; mineral composition; Moon; norite; Northwest Africa Meteorites; NWA 3163; NWA 4881; P-T conditions; plutonic rocks; Precambrian; Rb/Sr; SEM data; shock metamorphism; silicates; spectra; Sr-87/Sr-86; stable isotopes; strontium; textures DO - http://dx.doi.org/10.1016/j.gca.2016.04.032 ER - TY - JOUR T1 - Evidence for a changing Martian climate from the mineralogy at Mawrth Vallis AN - 1812216881; 2016-069006 AB - Layered outcrops in the Mawrth Vallis region of Mars contain the greatest diversity of aqueous alteration products on the planet, and these materials are used to infer past aqueous environments. Orbital investigations indicate Al/Si-rich clay-bearing units overly an Fe/Mg-smectite-rich unit. Many different secondary minerals have been identified in the upper Al/Si-rich clay units, but the presence of poorly crystalline phases has not been previously investigated. Identification of approximately 10-30% allophane and imogolite in the clay-bearing units resolves previous mineralogical discrepancies between TES and CRISM of clay-bearing units on Mars. We demonstrate here that the poorly crystalline aluminosilicates allophane and imogolite comprise a significant portion of the uppermost stratum of the Al/Si-clay-rich units. These phases are unique to immature soils derived from volcanic ash in well-drained, mildly acidic environments on Earth, and we hypothesize that the deposits discovered here originate from supervolcanic activity in nearby Arabia Terra. The transition through time from smectite-bearing units to the uppermost allophane/imogolite unit in Mawrth Vallis signifies a change in climate from a warm and wet environment to one where water was sporadic and likely depleted rapidly. JF - Earth and Planetary Science Letters AU - Bishop, Janice L AU - Rampe, Elizabeth B Y1 - 2016/08/15/ PY - 2016 DA - 2016 Aug 15 SP - 42 EP - 48 PB - Elsevier, Amsterdam VL - 448 SN - 0012-821X, 0012-821X KW - silicates KW - thermal infrared spectra KW - Mars KW - paleoclimatology KW - climate change KW - infrared spectra KW - aluminosilicates KW - Mawrth Vallis KW - volcanism KW - acidic composition KW - imogolite KW - HiRISE KW - spectra KW - orbital observations KW - volcanic ash KW - soils KW - CRISM KW - secondary minerals KW - smectite KW - Mars Reconnaissance Orbiter KW - weathering KW - clay minerals KW - terrestrial planets KW - aqueous alteration KW - planets KW - allophane KW - Mars Global Surveyor Program KW - sheet silicates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812216881?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Evidence+for+a+changing+Martian+climate+from+the+mineralogy+at+Mawrth+Vallis&rft.au=Bishop%2C+Janice+L%3BRampe%2C+Elizabeth+B&rft.aulast=Bishop&rft.aufirst=Janice&rft.date=2016-08-15&rft.volume=448&rft.issue=&rft.spage=42&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2016.04.031 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 49 N1 - Document feature - illus. N1 - SuppNotes - Includes appendix N1 - Last updated - 2016-08-18 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - acidic composition; allophane; aluminosilicates; aqueous alteration; clay minerals; climate change; CRISM; HiRISE; imogolite; infrared spectra; Mars; Mars Global Surveyor Program; Mars Reconnaissance Orbiter; Mawrth Vallis; orbital observations; paleoclimatology; planets; secondary minerals; sheet silicates; silicates; smectite; soils; spectra; terrestrial planets; thermal infrared spectra; volcanic ash; volcanism; weathering DO - http://dx.doi.org/10.1016/j.epsl.2016.04.031 ER - TY - JOUR T1 - Abiologic silicon isotope fractionation between aqueous Si and Fe(III)-Si gel in simulated Archean sea water; implications for Si isotope records in Precambrian sedimentary rocks AN - 1812216162; 2016-069271 AB - Precambrian Si-rich sedimentary rocks, including cherts and banded iron formations (BIFs), record a >7 ppm spread in (super 30) Si/ (super 28) Si ratios (delta (super 30) Si values), yet interpretation of this large variability has been hindered by the paucity of data on Si isotope exchange kinetics and equilibrium fractionation factors in systems that are pertinent to Precambrian marine conditions. Using the three-isotope method and an enriched (super 29) Si tracer, a series of experiments were conducted to constrain Si isotope exchange kinetics and fractionation factors between amorphous Fe(III)-Si gel, a likely precursor to Precambrian jaspers and BIFs, and aqueous Si in artificial Archean seawater under anoxic conditions. Experiments were conducted at room temperature, and in the presence and absence of aqueous Fe(II) (Fe(II) (sub aq) ).Results of this study demonstrate that Si solubility is significantly lower for Fe-Si gel than that of amorphous Si, indicating that seawater Si concentrations in the Precambrian may have been lower than previous estimates. The experiments reached approximately 70-90% Si isotope exchange after a period of 53-126 days, and the highest extents of exchange were obtained where Fe(II) (sub aq) was present, suggesting that Fe(II)-Fe(III) electron-transfer and atom-exchange reactions catalyze Si isotope exchange through breakage of Fe-Si bonds. All experiments except one showed little change in the instantaneous solid-aqueous Si isotope fractionation factor with time, allowing extraction of equilibrium Si isotope fractionation factors through extrapolation to 100% isotope exchange. The equilibrium (super 30) Si/ (super 28) Si fractionation between Fe(III)-Si gel and aqueous Si (Delta (super 30) Si (sub gel-aqueous) ) is -2.30 + or - 0.25 ppm (2sigma ) in the absence of Fe(II) (sub aq) . In the case where Fe(II) (sub aq) was present, which resulted in addition of approximately 10% Fe(II) in the final solid, creating a mixed Fe(II)-Fe(III) Si gel, the equilibrium fractionation between Fe(II)-Fe(III)-Si gel and aqueous Si (Delta (super 30) Si (sub gel-aqueous) ) is -3.23 + or - 0.37 ppm (2sigma ). Equilibrium Si isotope fractionation for Fe-Si gel systems is significantly larger in magnitude than estimates of a near-zero solid-aqueous fractionation factor between pure Si gel and aqueous Si, indicating a major influence of Fe atoms on Si-O bonds, and hence the isotopic properties, of Fe-Si gel. Larger Si isotope fractionation in the Fe(II)-bearing systems may be caused by incorporation of Fe(II) into the solid structure, which may further weaken Fe-Si bonds and thus change the Si isotope fractionation factor. The relatively large Si isotope fractionation for Fe-Si gel, relative to pure Si gel, provides a new explanation for the observed contrast in delta (super 30) Si values in the Precambrian BIFs and cherts, as well as an explanation for the relatively negative delta (super 30) Si values in BIFs, in contrast to previous proposals that the more negative delta (super 30) Si values in BIFs reflect hydrothermal sources of Si or sorption to Fe oxides/hydroxides. JF - Geochimica et Cosmochimica Acta AU - Zheng, Xin-Yuan AU - Beard, Brian L AU - Reddy, Thiruchelvi R AU - Roden, Eric E AU - Johnson, Clark M Y1 - 2016/08/15/ PY - 2016 DA - 2016 Aug 15 SP - 102 EP - 122 PB - Elsevier, New York, NY VL - 187 SN - 0016-7037, 0016-7037 KW - silicates KW - isotope fractionation KW - sea water KW - silica minerals KW - isotopes KW - banded iron formations KW - paleo-oceanography KW - mass spectra KW - simulation KW - silicon KW - stable isotopes KW - iron KW - marine sediments KW - sedimentary rocks KW - chemical reactions KW - phase equilibria KW - sediments KW - framework silicates KW - Archean KW - spectra KW - depositional environment KW - kinetics KW - experimental studies KW - chemically precipitated rocks KW - Precambrian KW - isotope ratios KW - basin analysis KW - ICP mass spectra KW - paleoenvironment KW - iron formations KW - metals KW - marine environment KW - mathematical methods KW - chert KW - anaerobic environment KW - jasper KW - Si-30/Si-28 KW - 12:Stratigraphy KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812216162?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Abiologic+silicon+isotope+fractionation+between+aqueous+Si+and+Fe%28III%29-Si+gel+in+simulated+Archean+sea+water%3B+implications+for+Si+isotope+records+in+Precambrian+sedimentary+rocks&rft.au=Zheng%2C+Xin-Yuan%3BBeard%2C+Brian+L%3BReddy%2C+Thiruchelvi+R%3BRoden%2C+Eric+E%3BJohnson%2C+Clark+M&rft.aulast=Zheng&rft.aufirst=Xin-Yuan&rft.date=2016-08-15&rft.volume=187&rft.issue=&rft.spage=102&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2016.05.012 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 101 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-08-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - anaerobic environment; Archean; banded iron formations; basin analysis; chemical reactions; chemically precipitated rocks; chert; depositional environment; experimental studies; framework silicates; ICP mass spectra; iron; iron formations; isotope fractionation; isotope ratios; isotopes; jasper; kinetics; marine environment; marine sediments; mass spectra; mathematical methods; metals; paleo-oceanography; paleoenvironment; phase equilibria; Precambrian; sea water; sedimentary rocks; sediments; Si-30/Si-28; silica minerals; silicates; silicon; simulation; spectra; stable isotopes DO - http://dx.doi.org/10.1016/j.gca.2016.05.012 ER - TY - JOUR T1 - Final deglaciation of the Scandinavian ice sheet and implications for the Holocene global sea-level budget AN - 1812215916; 2016-069005 AB - The last deglaciation of the Scandinavian Ice Sheet (SIS) from approximately 21,000 to 13,000 yr ago is well-constrained by several hundred (super 10) Be and (super 14) C ages. The subsequent retreat history, however, is established primarily from minimum-limiting (super 14) C ages and incomplete Baltic-Sea varve records, leaving a substantial fraction of final SIS retreat history poorly constrained. Here we develop a high-resolution chronology for the final deglaciation of the SIS based on 79 (super 10) Be cosmogenic exposure dates sampled along three transects spanning southern to northern Sweden and Finland. Combining this new chronology with existing (super 10) Be ages on deglaciation since the Last Glacial Maximum shows that rates of SIS margin retreat were strongly influenced by deglacial millennial-scale climate variability and its effect on surface mass balance, with regional modulation of retreat associated with dynamical controls. Ice-volume estimates constrained by our new chronology suggest that the SIS contributed approximately 8 m sea-level equivalent to global sea-level rise between approximately 14.5 ka and 10 ka. Final deglaciation was largely complete by approximately 10.5 ka, with highest rates of sea-level rise occurring during the Bolling-Allerod, a 50% decrease during the Younger Dryas, and a rapid increase during the early Holocene. Combining our SIS volume estimates with estimated contributions from other remaining Northern Hemisphere ice sheets suggests that the Antarctic Ice Sheet (AIS) contributed 14.4+ or -5.9 m to global sea-level rise since approximately 13 ka. This new constraint supports those studies that indicate that an ice volume of 15 m or more of equivalent sea-level rise was lost from the AIS during the last deglaciation. JF - Earth and Planetary Science Letters AU - Cuzzone, Joshua K AU - Clark, Peter U AU - Carlson, Anders E AU - Ullman, David J AU - Rinterknecht, Vincent R AU - Milne, Glenn A AU - Lunkka, Juha-Pekka AU - Wohlfarth, Barbara AU - Marcott, Shaun A AU - Caffee, Marc Y1 - 2016/08/15/ PY - 2016 DA - 2016 Aug 15 SP - 34 EP - 41 PB - Elsevier, Amsterdam VL - 448 SN - 0012-821X, 0012-821X KW - last glacial maximum KW - Bolling KW - isotopes KW - Europe KW - Holocene KW - deglaciation KW - climate change KW - upper Pleistocene KW - Cenozoic KW - upper Weichselian KW - radioactive isotopes KW - chronology KW - Weichselian KW - ice KW - Younger Dryas KW - Scandinavian ice sheet KW - alkaline earth metals KW - Western Europe KW - Quaternary KW - Be-10 KW - Finland KW - ice sheets KW - sea-level changes KW - Scandinavia KW - metals KW - upper Quaternary KW - volume KW - Pleistocene KW - Northern Hemisphere KW - Allerod KW - beryllium KW - Sweden KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812215916?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Final+deglaciation+of+the+Scandinavian+ice+sheet+and+implications+for+the+Holocene+global+sea-level+budget&rft.au=Cuzzone%2C+Joshua+K%3BClark%2C+Peter+U%3BCarlson%2C+Anders+E%3BUllman%2C+David+J%3BRinterknecht%2C+Vincent+R%3BMilne%2C+Glenn+A%3BLunkka%2C+Juha-Pekka%3BWohlfarth%2C+Barbara%3BMarcott%2C+Shaun+A%3BCaffee%2C+Marc&rft.aulast=Cuzzone&rft.aufirst=Joshua&rft.date=2016-08-15&rft.volume=448&rft.issue=&rft.spage=34&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2016.05.019 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 67 N1 - Document feature - illus. incl. sketch maps N1 - SuppNotes - Includes appendix N1 - Last updated - 2016-08-18 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Allerod; Be-10; beryllium; Bolling; Cenozoic; chronology; climate change; deglaciation; Europe; Finland; Holocene; ice; ice sheets; isotopes; last glacial maximum; metals; Northern Hemisphere; Pleistocene; Quaternary; radioactive isotopes; Scandinavia; Scandinavian ice sheet; sea-level changes; Sweden; upper Pleistocene; upper Quaternary; upper Weichselian; volume; Weichselian; Western Europe; Younger Dryas DO - http://dx.doi.org/10.1016/j.epsl.2016.05.019 ER - TY - NEWS T1 - NASA Maps Thawed Areas Under Greenland Ice Sheet AN - 1809929146 JF - UPI Space Daily AU - Maria-Jose Vinas for NASA Earth News Y1 - 2016/08/09/ PY - 2016 DA - 2016 Aug 09 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1809929146?accountid=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+Maps+Thawed+Areas+Under+Greenland+Ice+Sheet&rft.au=Maria-Jose+Vinas+for+NASA+Earth+News&rft.aulast=Maria-Jose+Vinas+for+NASA+Earth+News&rft.aufirst=&rft.date=2016-08-09&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 - 2016-08-09 ER - TY - JOUR T1 - Bright carbonate deposits as evidence of aqueous alteration on (1) Ceres AN - 1824212905; 2016-083443 JF - Nature (London) AU - De Sanctis, Maria Cristina AU - Raponi, A AU - Ammannito, E AU - Ciarniello, M AU - Toplis, M J AU - McSween, H Y AU - Castillo-Rogez, J C AU - Ehlmann, B L AU - Carrozzo, F G AU - Marchi, S AU - Tosi, F AU - Zambon, F AU - Capaccioni, F AU - Capria, M T AU - Fonte, S AU - Formisano, M AU - Frigeri, A AU - Giardino, M AU - Longobardo, A AU - Magni, G AU - Palomba, E AU - McFadden, L A AU - Pieters, C M AU - Jaumann, R AU - Schenk, P AU - Mugnuolo, R AU - Raymond, C A AU - Russell, C T Y1 - 2016/08/04/ PY - 2016 DA - 2016 Aug 04 SP - 54 EP - 57 PB - Macmillan Journals, London VL - 536 IS - 7614 SN - 0028-0836, 0028-0836 KW - silicates KW - albedo KW - ammonium KW - Ceres KW - asteroids KW - dwarf planets KW - brightness KW - aqueous alteration KW - mineral composition KW - craters KW - surface features KW - sheet silicates KW - Occator Crater KW - carbonates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824212905?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Bright+carbonate+deposits+as+evidence+of+aqueous+alteration+on+%281%29+Ceres&rft.au=De+Sanctis%2C+Maria+Cristina%3BRaponi%2C+A%3BAmmannito%2C+E%3BCiarniello%2C+M%3BToplis%2C+M+J%3BMcSween%2C+H+Y%3BCastillo-Rogez%2C+J+C%3BEhlmann%2C+B+L%3BCarrozzo%2C+F+G%3BMarchi%2C+S%3BTosi%2C+F%3BZambon%2C+F%3BCapaccioni%2C+F%3BCapria%2C+M+T%3BFonte%2C+S%3BFormisano%2C+M%3BFrigeri%2C+A%3BGiardino%2C+M%3BLongobardo%2C+A%3BMagni%2C+G%3BPalomba%2C+E%3BMcFadden%2C+L+A%3BPieters%2C+C+M%3BJaumann%2C+R%3BSchenk%2C+P%3BMugnuolo%2C+R%3BRaymond%2C+C+A%3BRussell%2C+C+T&rft.aulast=De+Sanctis&rft.aufirst=Maria&rft.date=2016-08-04&rft.volume=536&rft.issue=7614&rft.spage=54&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2Fnature18290 L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 24 N1 - Document feature - illus. N1 - Last updated - 2016-09-29 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - albedo; ammonium; aqueous alteration; asteroids; brightness; carbonates; Ceres; craters; dwarf planets; mineral composition; Occator Crater; sheet silicates; silicates; surface features DO - http://dx.doi.org/10.1038/nature18290 ER - TY - NEWS T1 - Collecting Fingerprints in the Sky AN - 1807975665 JF - UPI Space Daily AU - Denise Lineberry for NASA Earth News Y1 - 2016/08/02/ PY - 2016 DA - 2016 Aug 02 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807975665?accountid=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=Collecting+Fingerprints+in+the+Sky&rft.au=Denise+Lineberry+for+NASA+Earth+News&rft.aulast=Denise+Lineberry+for+NASA+Earth+News&rft.aufirst=&rft.date=2016-08-02&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 - 2016-08-02 ER - TY - JOUR T1 - Effects of model physics on hypoxia simulations for the northern Gulf of Mexico; a model intercomparison AN - 1849311491; 2016-106655 AB - A large hypoxic zone forms every summer on the Texas-Louisiana Shelf in the northern Gulf of Mexico due to nutrient and freshwater inputs from the Mississippi/Atchafalaya River System. Efforts are underway to reduce the extent of hypoxic conditions through reductions in river nutrient inputs, but the response of hypoxia to such nutrient load reductions is difficult to predict because biological responses are confounded by variability in physical processes. The objective of this study is to identify the major physical model aspects that matter for hypoxia simulation and prediction. In order to do so, we compare three different circulation models (ROMS, FVCOM, and NCOM) implemented for the northern Gulf of Mexico, all coupled to the same simple oxygen model, with observations and against each other. By using a highly simplified oxygen model, we eliminate the potentially confounding effects of a full biogeochemical model and can isolate the effects of physical features. In a systematic assessment, we found that (1) model-to-model differences in bottom water temperatures result in differences in simulated hypoxia because temperature influences the uptake rate of oxygen by the sediments (an important oxygen sink in this system), (2) vertical stratification does not explain model-to-model differences in hypoxic conditions in a straightforward way, and (3) the thickness of the bottom boundary layer, which sets the thickness of the hypoxic layer in all three models, is key to determining the likelihood of a model to generate hypoxic conditions. These results imply that hypoxic area, the commonly used metric in the northern Gulf which ignores hypoxic layer thickness, is insufficient for assessing a model's ability to accurately simulate hypoxia, and that hypoxic volume needs to be considered as well. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Oceans AU - Fennel, Katja AU - Laurent, Arnaud AU - Hetland, Robert AU - Justic, Dubravko AU - Ko, Dong S AU - Lehrter, John AU - Murrell, Michael AU - Wang, Lixia AU - Yu, Liuqian AU - Zhang, Wenxia Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 5731 EP - 5750 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 8 SN - 2169-9275, 2169-9275 KW - United States KW - Finite Volume Coast Ocean Model KW - sea water KW - FVCOM KW - oxygen KW - data processing KW - Gulf of Mexico KW - Regional Ocean Modelling System KW - Navy Coastal Ocean Model KW - digital simulation KW - Louisiana KW - northern Gulf of Mexico KW - ROMS KW - ocean circulation KW - numerical models KW - NCOM KW - solutes KW - Texas KW - stratification KW - dissolved oxygen KW - anaerobic environment KW - continental shelf KW - North Atlantic KW - Atlantic Ocean KW - bottom water KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849311491?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Oceans&rft.atitle=Effects+of+model+physics+on+hypoxia+simulations+for+the+northern+Gulf+of+Mexico%3B+a+model+intercomparison&rft.au=Fennel%2C+Katja%3BLaurent%2C+Arnaud%3BHetland%2C+Robert%3BJustic%2C+Dubravko%3BKo%2C+Dong+S%3BLehrter%2C+John%3BMurrell%2C+Michael%3BWang%2C+Lixia%3BYu%2C+Liuqian%3BZhang%2C+Wenxia&rft.aulast=Fennel&rft.aufirst=Katja&rft.date=2016-08-01&rft.volume=121&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 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 53 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2016-12-16 N1 - SubjectsTermNotLitGenreText - anaerobic environment; Atlantic Ocean; bottom water; continental shelf; data processing; digital simulation; dissolved oxygen; Finite Volume Coast Ocean Model; FVCOM; Gulf of Mexico; Louisiana; Navy Coastal Ocean Model; NCOM; North Atlantic; northern Gulf of Mexico; numerical models; ocean circulation; oxygen; Regional Ocean Modelling System; ROMS; sea water; solutes; stratification; Texas; United States DO - http://dx.doi.org/10.1002/2015JC011577 ER - TY - JOUR T1 - A snapshot of internal waves and hydrodynamic instabilities in the southern Bay of Bengal AN - 1849309959; 2016-106664 AB - Measurements conducted in the southern Bay of Bengal (BoB) as a part of the ASIRI-EBoB Program portray the characteristics of high-frequency internal waves in the upper pycnocline as well as the velocity structure with episodic events of shear instability. A 20 h time series of CTD, ADCP, and acoustic backscatter profiles down to 150 m as well as temporal CTD measurements in the pycnocline at z = 54 m were taken to the east of Sri Lanka. Internal waves of periods approximately 10-40 min were recorded at all depths below a shallow ( approximately 20-30 m) surface mixed layer in the background of an 8 m amplitude internal tide. The absolute values of vertical displacements associated with high-frequency waves followed the Nakagami distribution with a median value of 2.1 m and a 95% quintile 6.5 m. The internal wave amplitudes are normally distributed. The tails of the distribution deviate from normality due to episodic high-amplitude displacements. The sporadic appearance of internal waves with amplitudes exceeding approximately 5 m usually coincided with patches of low Richardson numbers, pointing to local shear instability as a possible mechanism of internal-wave-induced turbulence. The probability of shear instability in the summer BoB pycnocline based on an exponential distribution of the inverse Richardson number, however, appears to be relatively low, not exceeding 4% for Ri < 0.25 and about 10% for Ri < 0.36 (K-H billows). The probability of the generation of asymmetric breaking internal waves and Holmboe instabilities is above approximately 25%. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Oceans AU - Lozovatsky, Iossif AU - Wijesekera, Hemantha AU - Jarosz, Ewa AU - Lilover, Madis-Jaak AU - Pirro, Annunziata AU - Silver, Zachariah AU - Centurioni, Luca AU - Fernando, H J S Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 5898 EP - 5915 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 8 SN - 2169-9275, 2169-9275 KW - currents KW - sea water KW - time series analysis KW - statistical analysis KW - stability KW - southern Bay of Bengal KW - salinity KW - ocean currents KW - temperature KW - Indian Ocean KW - Bay of Bengal KW - stratification KW - ocean waves KW - velocity KW - hydrodynamics KW - spectra KW - acoustic Doppler current profiler data KW - backscattering KW - internal waves KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849309959?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Oceans&rft.atitle=A+snapshot+of+internal+waves+and+hydrodynamic+instabilities+in+the+southern+Bay+of+Bengal&rft.au=Lozovatsky%2C+Iossif%3BWijesekera%2C+Hemantha%3BJarosz%2C+Ewa%3BLilover%2C+Madis-Jaak%3BPirro%2C+Annunziata%3BSilver%2C+Zachariah%3BCenturioni%2C+Luca%3BFernando%2C+H+J+S&rft.aulast=Lozovatsky&rft.aufirst=Iossif&rft.date=2016-08-01&rft.volume=121&rft.issue=8&rft.spage=5898&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Oceans&rft.issn=21699275&rft_id=info:doi/10.1002%2F2016JC011697 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 52 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2016-12-16 N1 - SubjectsTermNotLitGenreText - acoustic Doppler current profiler data; backscattering; Bay of Bengal; currents; hydrodynamics; Indian Ocean; internal waves; ocean currents; ocean waves; salinity; sea water; southern Bay of Bengal; spectra; stability; statistical analysis; stratification; temperature; time series analysis; velocity DO - http://dx.doi.org/10.1002/2016JC011697 ER - TY - JOUR T1 - Scale Dependence of Land-Atmosphere Interactions in Wet and Dry Regions as Simulated with NU-WRF over the Southwestern and South-Central United States AN - 1846409881; PQ0003820304 AB - Large-scale forcing and land-atmosphere interactions on precipitation are investigated with NASA-Unified WRF (NU-WRF) simulations during fast transitions of ENSO phases from spring to early summer of 2010 and 2011. The model is found to capture major precipitation episodes in the 3-month simulations without resorting to nudging. However, the mean intensity of the simulated precipitation is underestimated by 46% and 57% compared with the observations in dry and wet regions in the southwestern and south-central United States, respectively. Sensitivity studies show that large-scale atmospheric forcing plays a major role in producing regional precipitation. A methodology to account for moisture contributions to individual precipitation events, as well as total precipitation, is presented under the same moisture budget framework. The analysis shows that the relative contributions of local evaporation and large-scale moisture convergence depend on the dry/wet regions and are a function of temporal and spatial scales. While the ratio of local and large-scale moisture contributions vary with domain size and weather system, evaporation provides a major moisture source in the dry region and during light rain events, which leads to greater sensitivity to soil moisture in the dry region and during light rain events. The feedback of land surface processes to large-scale forcing is well simulated, as indicated by changes in atmospheric circulation and moisture convergence. Overall, the results reveal an asymmetrical response of precipitation events to soil moisture, with higher sensitivity under dry than wet conditions. Drier soil moisture tends to suppress further existing below-normal precipitation conditions via a positive soil moisture-land surface flux feedback that could worsen drought conditions in the southwestern United States. JF - Journal of Hydrometeorology AU - Zhou, Yaping AU - Wu, Di AU - K-M Lau, William AU - Tao, Wei-Kuo AD - GESTAR, Morgan State University, Baltimore, and Laboratory for Atmospheres, NASA Goddard Space Flight Center, Greenbelt, Maryland Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 2121 EP - 2136 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 17 IS - 8 SN - 1525-755X, 1525-755X KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Evaporation KW - Drought conditions KW - Soil Water KW - Convergence KW - Soils KW - Surface fluxes KW - Droughts KW - Moisture budget KW - Modelling KW - El Nino phenomena KW - Atmospheric precipitations KW - Weather KW - Atmospheric circulation changes KW - Simulation Analysis KW - Atmospheric circulation KW - Precipitation KW - Southern Oscillation KW - Atmospheric circulation processes KW - USA KW - Hydrometeorological research KW - Numerical simulations KW - El Nino-Southern Oscillation event KW - Atmospheric forcing KW - Moisture Content KW - Rain KW - Land-atmosphere interaction KW - Soil moisture KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General KW - Q2 09182:Methods and instruments KW - M2 556.13:Evaporation/Evapotranspiration (556.13) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1846409881?accountid=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=Scale+Dependence+of+Land-Atmosphere+Interactions+in+Wet+and+Dry+Regions+as+Simulated+with+NU-WRF+over+the+Southwestern+and+South-Central+United+States&rft.au=Zhou%2C+Yaping%3BWu%2C+Di%3BK-M+Lau%2C+William%3BTao%2C+Wei-Kuo&rft.aulast=Zhou&rft.aufirst=Yaping&rft.date=2016-08-01&rft.volume=17&rft.issue=8&rft.spage=2121&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrometeorology&rft.issn=1525755X&rft_id=info:doi/10.1175%2FJHM-D-16-0024.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-12-01 N1 - Number of references - 83 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Atmospheric precipitations; Atmospheric forcing; Soils; Droughts; El Nino phenomena; Modelling; Southern Oscillation; Atmospheric circulation changes; Evaporation; Drought conditions; Atmospheric circulation; Precipitation; Atmospheric circulation processes; Hydrometeorological research; Numerical simulations; Convergence; El Nino-Southern Oscillation event; Surface fluxes; Soil moisture; Land-atmosphere interaction; Moisture budget; Weather; Simulation Analysis; Moisture Content; Rain; Soil Water; USA DO - http://dx.doi.org/10.1175/JHM-D-16-0024.1 ER - TY - JOUR T1 - Perchlorate formation on Mars through surface radiolysis-initiated atmospheric chemistry; a potential mechanism AN - 1840620979; 2016-096579 AB - Recent observations of the Martian surface by the Phoenix lander and the Sample Analysis at Mars indicate the presence of perchlorate (ClO (sub 4) (super -) ). The abundance and isotopic composition of these perchlorates suggest that the mechanisms responsible for their formation in the Martian environment may be unique in our solar system. With this in mind, we propose a potential mechanism for the production of Martian perchlorate: the radiolysis of the Martian surface by galactic cosmic rays, followed by the sublimation of chlorine oxides into the atmosphere and their subsequent synthesis to form perchloric acid (HClO (sub 4) ) in the atmosphere, and the surface deposition and subsequent mineralization of HClO (sub 4) in the regolith to form surface perchlorates. To evaluate the viability of this mechanism, we employ a one-dimensional chemical model, examining chlorine chemistry in the context of Martian atmospheric chemistry. Considering the chlorine oxide, OClO, we find that an OClO flux as low as 3.2 X 10 (super 7) molecules cm (super -2) s (super -1) sublimated into the atmosphere from the surface could produce sufficient HClO (sub 4) to explain the perchlorate concentration on Mars, assuming an accumulation depth of 30 cm and integrated over the Amazonian period. Radiolysis provides an efficient pathway for the oxidation of chlorine, bypassing the efficient Cl/HCl recycling mechanism that characterizes HClO (sub 4) formation mechanisms proposed for the Earth but not Mars. Abstract Copyright (2016), . The Authors. JF - Journal of Geophysical Research: Planets AU - Wilson, Eric H AU - Atreya, Sushil K AU - Kaiser, Ralf I AU - Mahaffy, Paul R Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 1472 EP - 1487 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 8 SN - 2169-9097, 2169-9097 KW - chlorine KW - isotopes KW - isotope ratios KW - halogens KW - atmosphere KW - Mars KW - stable isotopes KW - perchlorate KW - terrestrial planets KW - planets KW - Amazonian KW - Cl-37/Cl-35 KW - solar radiation KW - radiolysis KW - Phoenix Lander KW - chemical composition KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840620979?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Determination+of+the+amount+of+peroxy+in+granite+rock+using+the+Seebeck+Effect&rft.au=Tregloan-Reed%2C+Jeremy+James%3BTarnas%2C+Jesse%3BPlante%2C+Zach%3BFreund%2C+Friedemann+T%3BAnonymous&rft.aulast=Tregloan-Reed&rft.aufirst=Jeremy&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 115 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - Amazonian; atmosphere; chemical composition; chlorine; Cl-37/Cl-35; halogens; isotope ratios; isotopes; Mars; perchlorate; Phoenix Lander; planets; radiolysis; solar radiation; stable isotopes; terrestrial planets DO - http://dx.doi.org/10.1002/2016JE005078 ER - TY - JOUR T1 - Observations of two sprite-producing storms in Colorado AN - 1827914940; PQ0003655432 AB - Two sprite-producing thunderstorms were observed on 8 and 25 June 2012 in northeastern Colorado by a combination of low-light cameras, a lightning mapping array, polarimetric and Doppler radars, the National Lightning Detection Network, and charge moment change measurements. The 8 June event evolved from a tornadic hailstorm to a larger multicellular system that produced 21 observed positive sprites in 2h. The majority of sprites occurred during a lull in convective strength, as measured by total flash rate, flash energy, and radar echo volume. Mean flash area spiked multiple times during this period; however, total flash rates still exceeded 60min super(-1), and portions of the storm featured a complex anomalous charge structure, with midlevel positive charge near -20 degree C. The storm produced predominantly positive cloud-to-ground lightning. All sprite-parent flashes occurred on the northeastern flank of the storm, where strong westerly upper level flow was consistent with advection of charged precipitation away from convection, providing a pathway for stratiform lightning. The 25 June event was another multicellular hailstorm with an anomalous charge structure that produced 26 positive sprites in less than 1h. The sprites again occurred during a convective lull, with relatively weaker reflectivity and lower total flash rate but relatively larger mean flash area. However, all sprite parents occurred in or near convection and tapped charge layers in adjacent anvil cloud. The results demonstrate the sprite production by convective ground strokes in anomalously charged storms and also indicate that sprite production and convective vigor are inversely related in mature storms. Key Points * Positive sprites were observed over anomalously electrified convection in Colorado * Sprites did not occur until intense, mature convection began weakening * Polarimetric and multi-Doppler radar analyses indicated effects of storm microphysics and kinematics on sprite-parent lightning JF - Journal of Geophysical Research: Atmospheres AU - Lang, Timothy J AU - Lyons, Walter A AU - Cummer, Steven A AU - Fuchs, Brody R AU - Dolan, Brenda AU - Rutledge, Steven A AU - Krehbiel, Paul AU - Rison, William AU - Stanley, Mark AU - Ashcraft, Thomas AD - National Aeronautics and Space Administration George C. Marshall Space Flight Center, Huntsville, Alabama, USA. Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 9675 EP - 9695 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 121 IS - 16 SN - 2169-897X, 2169-897X KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Flow KW - Convection KW - Cloud-to-ground lightning KW - Anvils KW - Reflectance KW - Lightning KW - Westerlies KW - Thunderstorms KW - Convection development KW - Current observations KW - Storms KW - Advection KW - Mapping KW - Thunderstorm detection KW - Sprites KW - Hailstorms KW - Thunderstorm observations KW - Precipitation KW - Clouds KW - USA, Colorado KW - Doppler radar KW - Convective activity KW - Cameras KW - Radar KW - M2 551.593:Optical (551.593) KW - SW 0810:General KW - Q2 09244:Air-sea coupling UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1827914940?accountid=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+Geophysical+Research%3A+Atmospheres&rft.atitle=Observations+of+two+sprite-producing+storms+in+Colorado&rft.au=Lang%2C+Timothy+J%3BLyons%2C+Walter+A%3BCummer%2C+Steven+A%3BFuchs%2C+Brody+R%3BDolan%2C+Brenda%3BRutledge%2C+Steven+A%3BKrehbiel%2C+Paul%3BRison%2C+William%3BStanley%2C+Mark%3BAshcraft%2C+Thomas&rft.aulast=Lang&rft.aufirst=Timothy&rft.date=2016-08-01&rft.volume=121&rft.issue=16&rft.spage=9675&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2016JD025299 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-10-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Convection; Reflectance; Lightning; Radar; Cameras; Westerlies; Mapping; Current observations; Storms; Sprites; Anvils; Cloud-to-ground lightning; Hailstorms; Thunderstorms; Convection development; Thunderstorm observations; Clouds; Doppler radar; Convective activity; Thunderstorm detection; Flow; Precipitation; Advection; USA, Colorado DO - http://dx.doi.org/10.1002/2016JD025299 ER - TY - JOUR T1 - Testing the two-layer model for correcting near-cloud reflectance enhancement using LES/SHDOM-simulated radiances AN - 1827902957; PQ0003655456 AB - A transition zone exists between cloudy skies and clear sky; such that, clouds scatter solar radiation into clear-sky regions. From a satellite perspective, it appears that clouds enhance the radiation nearby. We seek a simple method to estimate this enhancement, since it is so computationally expensive to account for all three-dimensional (3-D) scattering processes. In previous studies, we developed a simple two-layer model (2LM) that estimated the radiation scattered via cloud-molecular interactions. Here we have developed a new model to account for cloud-surface interaction (CSI). We test the models by comparing to calculations provided by full 3-D radiative transfer simulations of realistic cloud scenes. For these scenes, the Moderate Resolution Imaging Spectroradiometer (MODIS)-like radiance fields were computed from the Spherical Harmonic Discrete Ordinate Method (SHDOM), based on a large number of cumulus fields simulated by the University of California, Los Angeles (UCLA) large eddy simulation (LES) model. We find that the original 2LM model that estimates cloud-air molecule interactions accounts for 64% of the total reflectance enhancement and the new model (2LM+CSI) that also includes cloud-surface interactions accounts for nearly 80%. We discuss the possibility of accounting for cloud-aerosol radiative interactions in 3-D cloud-induced reflectance enhancement, which may explain the remaining 20% of enhancements. Because these are simple models, these corrections can be applied to global satellite observations (e.g., MODIS) and help to reduce biases in aerosol and other clear-sky retrievals. Key Points * We present a method to account for cloud-surface interactions for cloud-induced clear-sky reflectance enhancement * We quantified errors in our models for estimating cloud-induced reflectance enhancement * We demonstrated the possibility to account for cloud-aerosol interactions for the enhancement JF - Journal of Geophysical Research: Atmospheres AU - Wen, Guoyong AU - Marshak, Alexander AU - Varnai, Tamas AU - Levy, Robert AD - NASA Goddard Space Flight Center, Greenbelt, Maryland, USA. Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 9661 EP - 9674 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 121 IS - 16 SN - 2169-897X, 2169-897X KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Reflectance KW - Solar radiation KW - Radiance KW - Radiation KW - MODIS (Moderate Resolution Imaging Spectrometer) KW - Modelling KW - USA, California, Los Angeles KW - Solar Radiation KW - Aerosols KW - Simulation Analysis KW - Transition Zone KW - Large eddy simulations KW - Imaging techniques KW - Methodology KW - Clouds KW - Satellite data KW - Eddies KW - Numerical simulations KW - Radiative transfer KW - M2 551.510.42:Air Pollution (551.510.42) KW - SW 0810:General KW - Q2 09244:Air-sea coupling UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1827902957?accountid=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+Geophysical+Research%3A+Atmospheres&rft.atitle=Testing+the+two-layer+model+for+correcting+near-cloud+reflectance+enhancement+using+LES%2FSHDOM-simulated+radiances&rft.au=Wen%2C+Guoyong%3BMarshak%2C+Alexander%3BVarnai%2C+Tamas%3BLevy%2C+Robert&rft.aulast=Wen&rft.aufirst=Guoyong&rft.date=2016-08-01&rft.volume=121&rft.issue=16&rft.spage=9661&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2016JD025021 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-10-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Clouds; Radiance; Aerosols; Reflectance; Radiation; Radiative transfer; Imaging techniques; Methodology; Modelling; Satellite data; Numerical simulations; MODIS (Moderate Resolution Imaging Spectrometer); Solar radiation; Large eddy simulations; Solar Radiation; Eddies; Simulation Analysis; Transition Zone; USA, California, Los Angeles DO - http://dx.doi.org/10.1002/2016JD025021 ER - TY - JOUR T1 - Optimal Reorganization of NASA Earth Science Data for Enhanced Accessibility and Usability for the Hydrology Community AN - 1819148062; PQ0003638469 AB - A long-standing "Digital Divide" in data representation exists between the preferred way of data access by the hydrology community and the common way of data archival by earth science data centers. Typically, in hydrology, earth surface features are expressed as discrete spatial objects (e.g., watersheds), and time-varying data are contained in associated time series. Data in earth science archives, although stored as discrete values (of satellite swath pixels or geographical grids), represent continuous spatial fields, one file per time step. This Divide has been an obstacle, specifically, between the Consortium of Universities for the Advancement of Hydrologic Science, Inc. and NASA earth science data systems. In essence, the way data are archived is conceptually orthogonal to the desired method of access. Our recent work has shown an optimal method of bridging the Divide, by enabling operational access to long-time series (e.g., 36 years of hourly data) of selected NASA datasets. These time series, which we have termed "data rods," are pre-generated or generated on-the-fly. This optimal solution was arrived at after extensive investigations of various approaches, including one based on "data curtains." The on-the-fly generation of data rods uses "data cubes," NASA Giovanni, and parallel processing. The optimal reorganization of NASA earth science data has significantly enhanced the access to and use of the data for the hydrology user community. JF - Journal of the American Water Resources Association AU - Teng, William AU - Rui, Hualan AU - Strub, Richard AU - Vollmer, Bruce AD - ADNET Systems, Inc. at NASA Goddard Earth Sciences Data and Information Services Center, Code 610.2, Greenbelt, Maryland, 20771. Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 825 EP - 835 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 52 IS - 4 SN - 1093-474X, 1093-474X KW - Environment Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Remote Sensing KW - Satellite Technology KW - time series KW - Remote sensing KW - Water resources KW - Watersheds KW - Satellites KW - Methodology KW - Hydrology KW - Archives KW - Hydrologic Data KW - Earth sciences KW - Water Resources KW - AQ 00001:Water Resources and Supplies KW - ENA 06:Food & Drugs KW - SW 0810:General KW - Q5 08505:Prevention and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819148062?accountid=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+the+American+Water+Resources+Association&rft.atitle=Optimal+Reorganization+of+NASA+Earth+Science+Data+for+Enhanced+Accessibility+and+Usability+for+the+Hydrology+Community&rft.au=Teng%2C+William%3BRui%2C+Hualan%3BStrub%2C+Richard%3BVollmer%2C+Bruce&rft.aulast=Teng&rft.aufirst=William&rft.date=2016-08-01&rft.volume=52&rft.issue=4&rft.spage=825&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/10.1111%2F1752-1688.12405 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-09-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Water resources; Hydrology; Archives; Watersheds; Methodology; time series; Remote sensing; Satellites; Earth sciences; Remote Sensing; Satellite Technology; Hydrologic Data; Water Resources DO - http://dx.doi.org/10.1111/1752-1688.12405 ER - TY - JOUR T1 - Oxygen isotopic variations in the outer margins and Wark-Lovering rims of refractory inclusions AN - 1812216551; 2016-069261 AB - Oxygen isotopic variations across the outer margins and Wark-Lovering (WL) rims of a diverse suite of six coarse-grained Types A and B refractory inclusions from both oxidized and reduced CV3 chondrites suggest that CAIs originated from a (super 16) O-rich protosolar gas reservoir and were later exposed to both relatively (super 17,18) O-rich and (super 16) O-rich reservoirs. The O-isotope profiles of CAIs can be explained by changes in the composition of gas near the protoSun or the migration of CAIs through a heterogeneous nebula. Variability within the inclusion interiors appears to have been set prior to WL rim growth. Modeling the isotopic zoning profiles as diffusion gradients between inclusion interiors and edges establishes a range of permissible time-temperature combinations for their exposure in the nebula. At mean temperatures of 1400 K, models that match the isotope gradients in the inclusions yield timescales ranging from 5 X 10 (super 3) to 3 X 10 (super 5) years. Assuming CAIs originated with a relatively (super 16) O-rich (protosolar) isotopic composition, differences among the melilite interiors and the isotopic gradients in their margins imply the existence of a number of isotopically distinct reservoirs. Evidence at the edges of some CAIs for subsequent isotopic exchange may relate to the beginning of rim formation. In the WL rim layers surrounding the interiors, spinel is relatively (super 16) O-rich but subtly distinct among different CAIs. Melilite is often relatively (super 16) O-poor, but rare relatively (super 16) O-rich grains also exist. Pyroxene generally exhibits intermediate O-isotope compositions and isotopic zoning. Olivine in both WL and accretionary rims, when present, is isotopically heterogeneous. The extreme isotopic heterogeneity among and within individual WL rim layers and in particular, the observed trends of outward (super 16) O-enrichments, suggest that rims surrounding CAIs contained in CV3 chondrites, like the inclusions themselves, formed from a number of isotopically distinct gas reservoirs. Collectively, these results support numerical protoplanetary disk models in which CAIs were transported between several distinct nebular reservoirs multiple times prior to accretion onto a parent body. JF - Geochimica et Cosmochimica Acta AU - Simon, Justin I AU - Matzel, Jennifer E P AU - Simon, Steven B AU - Hutcheon, Ian D AU - Ross, D Kent AU - Weber, Peter K AU - Grossman, Lawrence Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 242 EP - 276 PB - Elsevier, New York, NY VL - 186 SN - 0016-7037, 0016-7037 KW - stony meteorites KW - oxygen KW - ion probe data KW - isotopes KW - refractory materials KW - calcium-aluminum inclusions KW - mass spectra KW - CV chondrites KW - stable isotopes KW - variations KW - temperature KW - electron probe data KW - meteorites KW - Wark-Lovering rims KW - inclusions KW - spectra KW - mineral assemblages KW - chondrites KW - P-T conditions KW - solar system KW - isotope ratios KW - statistical analysis KW - electron microscopy data KW - O-18/O-16 KW - carbonaceous chondrites KW - terrestrial planets KW - reaction rims KW - models KW - mineral inclusions KW - planets KW - mathematical methods KW - NanoSIMS KW - temporal distribution KW - crystal chemistry KW - SEM data KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812216551?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Oxygen+isotopic+variations+in+the+outer+margins+and+Wark-Lovering+rims+of+refractory+inclusions&rft.au=Simon%2C+Justin+I%3BMatzel%2C+Jennifer+E+P%3BSimon%2C+Steven+B%3BHutcheon%2C+Ian+D%3BRoss%2C+D+Kent%3BWeber%2C+Peter+K%3BGrossman%2C+Lawrence&rft.aulast=Simon&rft.aufirst=Justin&rft.date=2016-08-01&rft.volume=186&rft.issue=&rft.spage=242&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2016.04.025 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 87 N1 - PubXState - NY N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-08-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - calcium-aluminum inclusions; carbonaceous chondrites; chondrites; crystal chemistry; CV chondrites; electron microscopy data; electron probe data; inclusions; ion probe data; isotope ratios; isotopes; mass spectra; mathematical methods; meteorites; mineral assemblages; mineral inclusions; models; NanoSIMS; O-18/O-16; oxygen; P-T conditions; planets; reaction rims; refractory materials; SEM data; solar system; spectra; stable isotopes; statistical analysis; stony meteorites; temperature; temporal distribution; terrestrial planets; variations; Wark-Lovering rims DO - http://dx.doi.org/10.1016/j.gca.2016.04.025 ER - TY - JOUR T1 - Fate of water pumped from underground and contributions to sea-level rise AN - 1811878499; PQ0003543939 AB - The contributions from terrestrial water sources to sea-level rise, other than ice caps and glaciers, are highly uncertain and heavily debated. Recent assessments indicate that groundwater depletion (GWD) may become the most important positive terrestrial contribution over the next 50 years, probably equal in magnitude to the current contributions from glaciers and ice caps. However, the existing estimates assume that nearly 100% of groundwater extracted eventually ends up in the oceans. Owing to limited knowledge of the pathways and mechanisms governing the ultimate fate of pumped groundwater, the relative fraction of global GWD that contributes to sea-level rise remains unknown. Here, using a coupled climate-hydrological model simulation, we show that only 80% of GWD ends up in the ocean. An increase in runoff to the ocean accounts for roughly two-thirds, whereas the remainder results from the enhanced net flux of precipitation minus evaporation over the ocean, due to increased atmospheric vapour transport from the land to the ocean. The contribution of GWD to global sea-level rise amounted to 0.02 ( plus or minus 0.004)mmyr super(-1) in 1900 and increased to 0.27 ( plus or minus 0.04)mmyr super(-1) in 2000. This indicates that existing studies have substantially overestimated the contribution of GWD to global sea-level rise by a cumulative amount of at least 10mm during the twentieth century and early twenty-first century. With other terrestrial water contributions included, we estimate the net terrestrial water contribution during the period 1993-2010 to be +0.12 ( plus or minus 0.04)mmyr super(-1), suggesting that the net terrestrial water contribution reported in the IPCC Fifth Assessment Report report is probably overestimated by a factor of three. JF - Nature Climate Change AU - Wada, Yoshihide AU - Lo, Min-Hui AU - Yeh, Pat J-F AU - Reager, John T AU - Famiglietti, James S AU - Wu, Ren-Jie AU - Tseng, Yu-Heng AD - NASA Goddard Institute for Space Studies, New York, New York 10025, USA; Center for Climate Systems Research, Columbia University, New York, New York 10025, USA; Department of Physical Geography, Utrecht University, 3584 CS Utrecht, The Netherlands; International Institute for Applied Systems Analysis, A-2361 Laxenburg, Austria Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 777 EP - 780 PB - Nature Publishing Group, The Macmillan Building London N1 9XW United Kingdom VL - 6 IS - 8 SN - 1758-678X, 1758-678X KW - Environment Abstracts; Meteorological & Geoastrophysical Abstracts KW - Sea level KW - Evaporation KW - Rainfall runoff KW - Rainfall KW - Glaciers KW - Climate change KW - Sea level rise KW - Simulation KW - Precipitation KW - Intergovernmental Panel on Climate Change KW - Groundwater depletion KW - Numerical simulations KW - Oceans KW - Water sources KW - Groundwater KW - Ice caps KW - M2 551.583:Variations (551.583) KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1811878499?accountid=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=Nature+Climate+Change&rft.atitle=Fate+of+water+pumped+from+underground+and+contributions+to+sea-level+rise&rft.au=Wada%2C+Yoshihide%3BLo%2C+Min-Hui%3BYeh%2C+Pat+J-F%3BReager%2C+John+T%3BFamiglietti%2C+James+S%3BWu%2C+Ren-Jie%3BTseng%2C+Yu-Heng&rft.aulast=Wada&rft.aufirst=Yoshihide&rft.date=2016-08-01&rft.volume=6&rft.issue=8&rft.spage=777&rft.isbn=&rft.btitle=&rft.title=Nature+Climate+Change&rft.issn=1758678X&rft_id=info:doi/10.1038%2Fnclimate3001 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Last updated - 2016-11-09 N1 - SubjectsTermNotLitGenreText - Groundwater depletion; Numerical simulations; Rainfall runoff; Evaporation; Climate change; Sea level rise; Water sources; Intergovernmental Panel on Climate Change; Precipitation; Ice caps; Sea level; Rainfall; Oceans; Glaciers; Simulation; Groundwater DO - http://dx.doi.org/10.1038/nclimate3001 ER - TY - JOUR T1 - Measurements of fog water interception by shrubs on the California central coast AN - 1808714950; PQ0003470643 AB - Fog water deposition may be an important component of the water budget of herbaceous-shrub ecosystems on the central and southern coastal regions of California. This paper presents the first analysis of measured fog water drip rates and meteorological controls in shrublands of Big Sur, California. Seasonal totals of 1255 mm and 306 mm of fog water drip were recorded in 2014 and 2015 (respectively), for averaged fog deposition rates of 0.02-0.08 l m super(2) hr. super(-1) to the soil under shrub canopy cover. The diurnal patterns of fog water drip showed that the majority of all trough water collected under shrubs on no-rain days occurred between the hours of 11 PM and 9 AM. During the study period from June 1 to October 31 of both 2014 and 2015, soil water content decreased significantly from average levels of 4-6 % at the shrub canopy center and middle locations, through 2-3 % VWC at the shrub edge locations, to levels at or below 2 % at 2-m distance locations from the shrub edge in open grass cover. Based on these results, we conclude that detectable rates of shrub canopy fog interception help sustain elevated soil water levels under shrubs and aid woody vegetation survival through periods of low rainfall. JF - Journal of Coastal Conservation AU - Potter, Christopher AD - NASA Ames Research Center, Moffett Field, CA, 94035, USA, chris.potter@nasa.gov Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 315 EP - 325 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 20 IS - 4 SN - 1400-0350, 1400-0350 KW - Sustainability Science Abstracts; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Environment Abstracts; Ecology Abstracts KW - Ecosystems KW - Grasses KW - Water budget KW - Rainfall KW - Survival KW - Soil KW - Water levels KW - Sulfur dioxide KW - Soils KW - Meteorology KW - Canopies KW - Coasts KW - Shrubs KW - Diurnal variations KW - Vegetation KW - Water content KW - Fog KW - Coastal zone KW - INE, USA, California, Big Sur KW - Conservation KW - M3 1010:Issues in Sustainable Development KW - O 4080:Pollution - Control and Prevention KW - Q5 08504:Effects on organisms KW - ENA 12:Oceans & Estuaries KW - D 04060:Management and Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808714950?accountid=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+Coastal+Conservation&rft.atitle=Measurements+of+fog+water+interception+by+shrubs+on+the+California+central+coast&rft.au=Potter%2C+Christopher&rft.aulast=Potter&rft.aufirst=Christopher&rft.date=2016-08-01&rft.volume=20&rft.issue=4&rft.spage=315&rft.isbn=&rft.btitle=&rft.title=Journal+of+Coastal+Conservation&rft.issn=14000350&rft_id=info:doi/10.1007%2Fs11852-016-0443-y LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Number of references - 26 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Water levels; Water budget; Soils; Canopies; Fog; Soil; Shrubs; Grasses; Rainfall; Vegetation; Conservation; Survival; Water content; Coasts; Diurnal variations; Ecosystems; Coastal zone; Sulfur dioxide; Meteorology; INE, USA, California, Big Sur DO - http://dx.doi.org/10.1007/s11852-016-0443-y ER - TY - JOUR T1 - Two-Year Comparison of Airborne Measurements of CO sub(2) and CH sub(4) With GOSAT at Railroad Valley, Nevada AN - 1808696739; PQ0003274258 AB - The Alpha Jet Atmospheric eXperiment (AJAX) is a project to measure the atmospheric profiles of greenhouse gases (GHGs) and ozone (O sub(3)) regularly over California and Nevada. Airborne instruments measuring GHGs and O sub(3 ) are installed in a wing pod of an Alpha Jet aircraft and operated from the National Aeronautics and Space Administration Ames Research Center at Moffett Field, CA. The instruments yield precise and accurate in situ vertical profiles of atmospheric carbon dioxide (CO sub(2)), methane (CH sub(4)), and O sub(3). Measurements of vertical profiles of GHGs and O sub(3) over Railroad Valley, NV have been conducted directly under the Greenhouse gases Observing SATellite (GOSAT) over passes on a monthly basis as part of the AJAX project since June 2011. The purpose of this work is to calculate aircraft-based dry-air mole fractions of the GHGs for the validation of GOSAT data products. This study expands and improves our previous comparisons by evaluating three algorithms against 24 months of in situ data collected over a Gain-M target. We used three different algorithms: Atmospheric CO sub(2) Observations from Space (ACOS v3.4r3), Remote Sensing of Greenhouse Gases for Carbon Cycle Modeling (RemoteC v2.3.5FP), and National Institute for Environmental Studies (NIES v2.11). We find that the CO sub(2) average differences of ACOS and RemoteC from AJAX are 0.26% and 0.24%, respectively. The difference between NIES and AJAX is 0.96%, which is higher than that of ACOS and RemoteC. The CH sub(4) average differences for RemoteC and NIES are 2.1% and 1.7%, respectively. JF - IEEE Transactions on Geoscience and Remote Sensing AU - Tanaka, Tomoaki AU - Yates, Emma AU - Iraci, Laura T AU - Johnson, Matthew S AU - Gore, Warren AU - Tadic, Jovan M AU - Loewenstein, Max AU - Kuze, Akihiko AU - Frankenberg, Christian AU - Butz, Andre AU - Yoshida, Yukio AD - NASA Ames Research Center, Moffett Field, CA, USA Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 4367 EP - 4375 PB - Institute of Electrical and Electronics Engineers, Inc., 345 E. 47th St. NY NY 10017-2394 United States VL - 54 IS - 8 SN - 0196-2892, 0196-2892 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Remote Sensing KW - Satellite Technology KW - Methane KW - Climate change KW - Algorithms KW - Remote sensing KW - Carbon cycle KW - Wings KW - Greenhouse effect KW - USA, Nevada KW - Vertical profiles KW - Aircraft KW - Profiles KW - INE, USA, California KW - Railroads KW - Carbon Cycle KW - Carbon dioxide KW - Carbon Dioxide KW - Ozone KW - Q2 09102:Institutes and organizations KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808696739?accountid=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=IEEE+Transactions+on+Geoscience+and+Remote+Sensing&rft.atitle=Chemical+composition+of+diagenetic+features+at+lower+Aeolis+Mons%2C+Mars+as+measured+by+curiosity%27s+APXS&rft.au=Berger%2C+Jeff+A%3BSchmidt%2C+Mariek+E%3BGellert%2C+Ralf%3BBoyd%2C+Nick%3BCampbell%2C+John+L%3BDesouza%2C+Elstan%3BFisk%2C+Martin+R%3BPerrett%2C+Glynis+M%3BThompson%2C+Lucy+M%3BVanBommel%2C+Scott%3BYen%2C+Albert+S%3BAnonymous&rft.aulast=Berger&rft.aufirst=Jeff&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Methane; Climate change; Wings; Carbon cycle; Remote sensing; Greenhouse effect; Carbon dioxide; Vertical profiles; Ozone; Remote Sensing; Satellite Technology; Aircraft; Profiles; Railroads; Algorithms; Carbon Cycle; Carbon Dioxide; INE, USA, California; USA, Nevada DO - http://dx.doi.org/10.1109/TGRS.2016.2539973 ER - TY - JOUR T1 - Assessment of the SMAP Passive Soil Moisture Product AN - 1808688562; PQ0003274279 AB - The National Aeronautics and Space Administration (NASA) Soil Moisture Active Passive (SMAP) satellite mission was launched on January 31, 2015. The observatory was developed to provide global mapping of high-resolution soil moisture and freeze-thaw state every two to three days using an L-band (active) radar and an L-band (passive) radiometer. After an irrecoverable hardware failure of the radar on July 7, 2015, the radiometer-only soil moisture product became the only operational soil moisture product for SMAP. The product provides soil moisture estimates posted on a 36 km Earth-fixed grid produced using brightness temperature observations from descending passes. Within months after the commissioning of the SMAP radiometer, the product was assessed to have attained preliminary (beta) science quality, and data were released to the public for evaluation in September 2015. The product is available from the NASA Distributed Active Archive Center at the National Snow and Ice Data Center. This paper provides a summary of the Level 2 Passive Soil Moisture Product (L2_SM_P) and its validation against in situ ground measurements collected from different data sources. Initial in situ comparisons conducted between March 31, 2015 and October 26, 2015, at a limited number of core validation sites (CVSs) and several hundred sparse network points, indicate that the V-pol Single Channel Algorithm (SCA-V) currently delivers the best performance among algorithms considered for L2_SM_P, based on several metrics. The accuracy of the soil moisture retrievals averaged over the CVSs was 0.038 m super(3)/m super(3) unbiased root-mean-square difference (ubRMSD), which approaches the SMAP mission requirement of 0.040 m super(3)/m super(3). JF - IEEE Transactions on Geoscience and Remote Sensing AU - Chan, Steven K AU - Bindlish, Rajat AU - E O'Neill, Peggy AU - Njoku, Eni AU - Jackson, Tom AU - Colliander, Andreas AU - Chen, Fan AU - Burgin, Mariko AU - Dunbar, Scott AU - Piepmeier, Jeffrey AU - Yueh, Simon AU - Entekhabi, Dara AU - Cosh, Michael H AU - Caldwell, Todd AU - Walker, Jeffrey AU - Wu, Xiaoling AU - Berg, Aaron AU - Rowlandson, Tracy AU - Pacheco, Anna AU - McNairn, Heather AU - Thibeault, Marc AU - Martinez-Fernandez, Jose AU - Gonzalez-Zamora, Angel AU - Seyfried, Mark AU - Bosch, David AU - Starks, Patrick AU - Goodrich, David AU - Prueger, John AU - Palecki, Michael AU - Small, Eric E AU - Zreda, Marek AU - Calvet, Jean-Christophe AU - Crow, Wade T AU - Kerr, Yann AD - NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 4994 EP - 5007 PB - Institute of Electrical and Electronics Engineers, Inc., 345 E. 47th St. NY NY 10017-2394 United States VL - 54 IS - 8 SN - 0196-2892, 0196-2892 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Remote Sensing KW - Satellite Technology KW - Mathematical models KW - Snow KW - Algorithms KW - Remote sensing KW - Soil Water KW - Surface radiation temperature KW - Channels KW - Evaluation KW - Radiometers KW - Assessments KW - Radar KW - Soils KW - Moisture Content KW - Mapping KW - Archives KW - Q2 09262:Methods and instruments KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808688562?accountid=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=IEEE+Transactions+on+Geoscience+and+Remote+Sensing&rft.atitle=Assessment+of+the+SMAP+Passive+Soil+Moisture+Product&rft.au=Chan%2C+Steven+K%3BBindlish%2C+Rajat%3BE+O%27Neill%2C+Peggy%3BNjoku%2C+Eni%3BJackson%2C+Tom%3BColliander%2C+Andreas%3BChen%2C+Fan%3BBurgin%2C+Mariko%3BDunbar%2C+Scott%3BPiepmeier%2C+Jeffrey%3BYueh%2C+Simon%3BEntekhabi%2C+Dara%3BCosh%2C+Michael+H%3BCaldwell%2C+Todd%3BWalker%2C+Jeffrey%3BWu%2C+Xiaoling%3BBerg%2C+Aaron%3BRowlandson%2C+Tracy%3BPacheco%2C+Anna%3BMcNairn%2C+Heather%3BThibeault%2C+Marc%3BMartinez-Fernandez%2C+Jose%3BGonzalez-Zamora%2C+Angel%3BSeyfried%2C+Mark%3BBosch%2C+David%3BStarks%2C+Patrick%3BGoodrich%2C+David%3BPrueger%2C+John%3BPalecki%2C+Michael%3BSmall%2C+Eric+E%3BZreda%2C+Marek%3BCalvet%2C+Jean-Christophe%3BCrow%2C+Wade+T%3BKerr%2C+Yann&rft.aulast=Chan&rft.aufirst=Steven&rft.date=2016-08-01&rft.volume=54&rft.issue=8&rft.spage=4994&rft.isbn=&rft.btitle=&rft.title=IEEE+Transactions+on+Geoscience+and+Remote+Sensing&rft.issn=01962892&rft_id=info:doi/10.1109%2FTGRS.2016.2561938 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Radiometers; Mathematical models; Snow; Soils; Remote sensing; Archives; Mapping; Surface radiation temperature; Evaluation; Channels; Remote Sensing; Satellite Technology; Assessments; Radar; Algorithms; Moisture Content; Soil Water DO - http://dx.doi.org/10.1109/TGRS.2016.2561938 ER - TY - JOUR T1 - Early degassing of lunar urKREEP by crust-breaching impact(s) AN - 1803777599; 2016-062982 AB - Current models for the Moon's formation have yet to fully account for the thermal evolution of the Moon in the presence of H (sub 2) O and other volatiles. Of particular importance is chlorine, since most lunar samples are characterised by unique heavy delta (super 37) Cl values, significantly deviating from those of other planetary materials, including Earth, for which delta (super 37) Cl values cluster around approximately 0 ppm. In order to unravel the cause(s) of the Moon's unique chlorine isotope signature, we performed a comprehensive study of high-precision in situ Cl isotope measurements of apatite from a suite of Apollo samples with a range of geochemical characteristics and petrologic types. The Cl-isotopic compositions measured in lunar apatite in the studied samples display a wide range of delta (super 37) Cl values (reaching a maximum value of +36 ppm), which are positively correlated with the amount of potassium (K), Rare Earth Element (REE) and phosphorous (P) (KREEP) component in each sample. Using these new data, integrated with existing H-isotope data obtained for the same samples, we are able to place these findings in the context of the canonical lunar magma ocean (LMO) model. The results are consistent with the urKREEP reservoir being characterised by a delta (super 37) Cl approximately +30 ppm. Such a heavy Cl isotope signature requires metal-chloride degassing from a Cl-enriched urKREEP LMO residue, a process likely to have been triggered by at least one large crust-breaching impact event that facilitated the transport and exposure of urKREEP liquid to the lunar surface. JF - Earth and Planetary Science Letters AU - Barnes, Jessica J AU - Tartese, Romain AU - Anand, Mahesh AU - McCubbin, Francis M AU - Neal, Clive R AU - Franchi, Ian A Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 84 EP - 94 PB - Elsevier, Amsterdam VL - 447 SN - 0012-821X, 0012-821X KW - volcanic rocks KW - ion probe data KW - isotopes KW - igneous rocks KW - halogens KW - mass spectra KW - granulites KW - thermal history KW - stable isotopes KW - melts KW - metamorphic rocks KW - basalts KW - spectra KW - chlorine KW - magma oceans KW - Moon KW - isotope ratios KW - differentiation KW - impacts KW - gases KW - volatiles KW - lunar samples KW - KREEP KW - lunar crust KW - Cl-37/Cl-35 KW - NanoSIMS KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803777599?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Early+degassing+of+lunar+urKREEP+by+crust-breaching+impact%28s%29&rft.au=Barnes%2C+Jessica+J%3BTartese%2C+Romain%3BAnand%2C+Mahesh%3BMcCubbin%2C+Francis+M%3BNeal%2C+Clive+R%3BFranchi%2C+Ian+A&rft.aulast=Barnes&rft.aufirst=Jessica&rft.date=2016-08-01&rft.volume=447&rft.issue=&rft.spage=84&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2016.04.036 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 49 N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-07-14 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - basalts; chlorine; Cl-37/Cl-35; differentiation; gases; granulites; halogens; igneous rocks; impacts; ion probe data; isotope ratios; isotopes; KREEP; lunar crust; lunar samples; magma oceans; mass spectra; melts; metamorphic rocks; Moon; NanoSIMS; spectra; stable isotopes; thermal history; volatiles; volcanic rocks DO - http://dx.doi.org/10.1016/j.epsl.2016.04.036 ER - TY - JOUR T1 - Cassini's geological and compositional view of Tethys AN - 1803776494; 2016-063121 JF - Icarus AU - Stephan, Katrin AU - Wagner, Roland AU - Jaumann, Ralf AU - Clark, Roger N AU - Cruikshank, Dale P AU - Brown, Robert H AU - Giese, Bernd AU - Roatsch, Thomas AU - Filacchione, Gianrico AU - Matson, Dennis L AU - Dalle Ore, Cristina AU - Capaccioni, Fabrizio AU - Baines, Kevin H AU - Rodriguez, Sebastien AU - Krupp, Norbert AU - Buratti, Bonnie J AU - Nicholson, Philip D Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 1 EP - 22 PB - Elsevier, New York, NY VL - 274 SN - 0019-1035, 0019-1035 KW - water KW - Imaging Science Subsystem KW - surface properties KW - icy satellites KW - Odysseus Crater KW - impact features KW - Tethys Satellite KW - Ithaca Chasma KW - impacts KW - Rhea Satellite KW - ejecta KW - infrared spectra KW - grabens KW - morphology KW - Cassini-Huygens Mission KW - ice KW - composition KW - basins KW - impact craters KW - spectra KW - Dione Satellite KW - satellites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803776494?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Cassini%27s+geological+and+compositional+view+of+Tethys&rft.au=Stephan%2C+Katrin%3BWagner%2C+Roland%3BJaumann%2C+Ralf%3BClark%2C+Roger+N%3BCruikshank%2C+Dale+P%3BBrown%2C+Robert+H%3BGiese%2C+Bernd%3BRoatsch%2C+Thomas%3BFilacchione%2C+Gianrico%3BMatson%2C+Dennis+L%3BDalle+Ore%2C+Cristina%3BCapaccioni%2C+Fabrizio%3BBaines%2C+Kevin+H%3BRodriguez%2C+Sebastien%3BKrupp%2C+Norbert%3BBuratti%2C+Bonnie+J%3BNicholson%2C+Philip+D&rft.aulast=Stephan&rft.aufirst=Katrin&rft.date=2016-08-01&rft.volume=274&rft.issue=&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.03.002 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 63 N1 - PubXState - NY N1 - Document feature - illus. incl. geol. sketch maps N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - basins; Cassini-Huygens Mission; composition; Dione Satellite; ejecta; grabens; ice; icy satellites; Imaging Science Subsystem; impact craters; impact features; impacts; infrared spectra; Ithaca Chasma; morphology; Odysseus Crater; Rhea Satellite; satellites; spectra; surface properties; Tethys Satellite; water DO - http://dx.doi.org/10.1016/j.icarus.2016.03.002 ER - TY - JOUR T1 - Chromophores from photolyzed ammonia reacting with acetylene; application to Jupiter's Great Red Spot AN - 1803776449; 2016-063127 JF - Icarus AU - Carlson, Robert W AU - Baines, Kevin H AU - Anderson, M S AU - Filacchione, Gianrico AU - Simon, A A Y1 - 2016/08// PY - 2016 DA - August 2016 SP - 106 EP - 115 PB - Elsevier, New York, NY VL - 274 SN - 0019-1035, 0019-1035 KW - albedo KW - acetylene KW - altitude KW - optical spectra KW - Jupiter KW - aliphatic hydrocarbons KW - mass spectra KW - troposphere KW - ethane KW - Great Red Spot KW - infrared spectra KW - giant planets KW - Cassini-Huygens Mission KW - electromagnetic radiation KW - chromophores KW - alkynes KW - spectra KW - outer planets KW - ammonia compound KW - experimental studies KW - methane KW - gaseous phase KW - photochemistry KW - alkanes KW - ultraviolet radiation KW - planets KW - organic compounds KW - photolysis KW - hydrocarbons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803776449?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Chromophores+from+photolyzed+ammonia+reacting+with+acetylene%3B+application+to+Jupiter%27s+Great+Red+Spot&rft.au=Carlson%2C+Robert+W%3BBaines%2C+Kevin+H%3BAnderson%2C+M+S%3BFilacchione%2C+Gianrico%3BSimon%2C+A+A&rft.aulast=Carlson&rft.aufirst=Robert&rft.date=2016-08-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 79 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Includes appendix N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - acetylene; albedo; aliphatic hydrocarbons; alkanes; alkynes; altitude; ammonia compound; Cassini-Huygens Mission; chromophores; electromagnetic radiation; ethane; experimental studies; gaseous phase; giant planets; Great Red Spot; hydrocarbons; infrared spectra; Jupiter; mass spectra; methane; optical spectra; organic compounds; outer planets; photochemistry; photolysis; planets; spectra; troposphere; ultraviolet radiation DO - http://dx.doi.org/10.1016/j.icarus.2016.03.008 ER - TY - JOUR T1 - Oxidation of manganese in an ancient aquifer, Kimberley Formation, Gale Crater, Mars AN - 1859792271; 2017-004562 AB - The Curiosity rover observed high Mn abundances (>25 wt % MnO) in fracture-filling materials that crosscut sandstones in the Kimberley region of Gale crater, Mars. The correlation between Mn and trace metal abundances plus the lack of correlation between Mn and elements such as S, Cl, and C, reveals that these deposits are Mn oxides rather than evaporites or other salts. On Earth, environments that concentrate Mn and deposit Mn minerals require water and highly oxidizing conditions; hence, these findings suggest that similar processes occurred on Mars. Based on the strong association between Mn-oxide deposition and evolving atmospheric dioxygen levels on Earth, the presence of these Mn phases on Mars suggests that there was more abundant molecular oxygen within the atmosphere and some groundwaters of ancient Mars than in the present day. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Geophysical Research Letters AU - Lanza, Nina L AU - Wiens, Roger C AU - Arvidson, Raymond E AU - Clark, Benton C AU - Fischer, Woodward W AU - Gellert, Ralf AU - Grotzinger, John P AU - Hurowitz, Joel A AU - McLennan, Scott M AU - Morris, Richard V AU - Rice, Melissa S AU - Bell, James F, III AU - Berger, Jeffrey A AU - Blaney, Diana L AU - Bridges, Nathan T AU - Calef, Fred, III AU - Campbell, John L AU - Clegg, Samuel M AU - Cousin, Agnes AU - Edgett, Kenneth S AU - Fabre, Cecile AU - Fisk, Martin R AU - Forni, Olivier AU - Frydenvang, Jens AU - Hardy, Keian R AU - Hardgrove, Craig AU - Johnson, Jeffrey R AU - Lasue, Jeremie AU - Le Mouelic, Stephane AU - Malin, Michael C AU - Mangold, Nicolas AU - Martin-Torres, Javier AU - Maurice, Sylvestre AU - McBride, Marie J AU - Ming, Douglas W AU - Newsom, Horton E AU - Ollila, Ann M AU - Sautter, Violaine AU - Schroeder, Susanne AU - Thompson, Lucy M AU - Treiman, Allan H AU - VanBommel, Scott AU - Vaniman, David T AU - Zorzano, Maria-Paz Y1 - 2016/07/28/ PY - 2016 DA - 2016 Jul 28 SP - 7398 EP - 7407 PB - American Geophysical Union, Washington, DC VL - 43 IS - 14 SN - 0094-8276, 0094-8276 KW - fractured materials KW - oxygen KW - enrichment KW - alpha particles KW - Mars KW - manganese KW - ground water KW - Gale Crater KW - major elements KW - Curiosity Rover KW - manganese oxides KW - oxides KW - interplanetary comparison KW - ChemCam KW - spectra KW - chemical composition KW - geochemistry KW - concentration KW - Earth KW - Mount Remarkable Member KW - paleoatmosphere KW - oxidation KW - cosmochemistry KW - Kimberley Formation KW - X-ray spectra KW - aquifers KW - terrestrial planets KW - planets KW - paleoenvironment KW - extraterrestrial geology KW - metals KW - Mars Science Laboratory KW - terrestrial comparison KW - trace metals KW - Dillinger Member KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859792271?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Oxidation+of+manganese+in+an+ancient+aquifer%2C+Kimberley+Formation%2C+Gale+Crater%2C+Mars&rft.au=Lanza%2C+Nina+L%3BWiens%2C+Roger+C%3BArvidson%2C+Raymond+E%3BClark%2C+Benton+C%3BFischer%2C+Woodward+W%3BGellert%2C+Ralf%3BGrotzinger%2C+John+P%3BHurowitz%2C+Joel+A%3BMcLennan%2C+Scott+M%3BMorris%2C+Richard+V%3BRice%2C+Melissa+S%3BBell%2C+James+F%2C+III%3BBerger%2C+Jeffrey+A%3BBlaney%2C+Diana+L%3BBridges%2C+Nathan+T%3BCalef%2C+Fred%2C+III%3BCampbell%2C+John+L%3BClegg%2C+Samuel+M%3BCousin%2C+Agnes%3BEdgett%2C+Kenneth+S%3BFabre%2C+Cecile%3BFisk%2C+Martin+R%3BForni%2C+Olivier%3BFrydenvang%2C+Jens%3BHardy%2C+Keian+R%3BHardgrove%2C+Craig%3BJohnson%2C+Jeffrey+R%3BLasue%2C+Jeremie%3BLe+Mouelic%2C+Stephane%3BMalin%2C+Michael+C%3BMangold%2C+Nicolas%3BMartin-Torres%2C+Javier%3BMaurice%2C+Sylvestre%3BMcBride%2C+Marie+J%3BMing%2C+Douglas+W%3BNewsom%2C+Horton+E%3BOllila%2C+Ann+M%3BSautter%2C+Violaine%3BSchroeder%2C+Susanne%3BThompson%2C+Lucy+M%3BTreiman%2C+Allan+H%3BVanBommel%2C+Scott%3BVaniman%2C+David+T%3BZorzano%2C+Maria-Paz&rft.aulast=Lanza&rft.aufirst=Nina&rft.date=2016-07-28&rft.volume=43&rft.issue=14&rft.spage=7398&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2016GL069109 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2017-01-01 N1 - Number of references - 50 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2017-01-19 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - alpha particles; aquifers; ChemCam; chemical composition; concentration; cosmochemistry; Curiosity Rover; Dillinger Member; Earth; enrichment; extraterrestrial geology; fractured materials; Gale Crater; geochemistry; ground water; interplanetary comparison; Kimberley Formation; major elements; manganese; manganese oxides; Mars; Mars Science Laboratory; metals; Mount Remarkable Member; oxidation; oxides; oxygen; paleoatmosphere; paleoenvironment; planets; spectra; terrestrial comparison; terrestrial planets; trace metals; X-ray spectra DO - http://dx.doi.org/10.1002/2016GL069109 ER - TY - JOUR T1 - Widespread effusive volcanism on Mercury likely ended by about 3.5 Ga AN - 1859791949; 2017-004563 AB - Crater size-frequency analyses have shown that the largest volcanic plains deposits on Mercury were emplaced around 3.7 Ga, as determined with recent model production function chronologies for impact crater formation on that planet. To test the hypothesis that all major smooth plains on Mercury were emplaced by about that time, we determined crater size-frequency distributions for the nine next-largest deposits, which we interpret also as volcanic. Our crater density measurements are consistent with those of the largest areas of smooth plains on the planet. Model ages based on recent crater production rate estimates for Mercury imply that the main phase of plains volcanism on Mercury had ended by approximately 3.5 Ga, with only small-scale volcanism enduring beyond that time. Cessation of widespread effusive volcanism is attributable to interior cooling and contraction of the innermost planet. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Geophysical Research Letters AU - Byrne, Paul K AU - Ostrach, Lillian R AU - Fassett, Caleb I AU - Chapman, Clark R AU - Denevi, Brett W AU - Evans, Alexander J AU - Klimczak, Christian AU - Banks, Maria E AU - Head, James W AU - Solomon, Sean C Y1 - 2016/07/28/ PY - 2016 DA - 2016 Jul 28 SP - 7408 EP - 7416 PB - American Geophysical Union, Washington, DC VL - 43 IS - 14 SN - 0094-8276, 0094-8276 KW - cratering KW - impact features KW - resurfacing KW - effusion KW - data processing KW - mapping KW - statistical distribution KW - spatial distribution KW - size distribution KW - volcanic features KW - geographic information systems KW - mosaics KW - volcanism KW - Mercury Planet KW - surface features KW - cooling KW - absolute age KW - dimensions KW - Archean KW - functions KW - Precambrian KW - cosmochronology KW - isochrons KW - terrestrial planets KW - models KW - computer programs KW - planets KW - contraction KW - extraterrestrial geology KW - planetary interiors KW - information systems KW - impact craters KW - MESSENGER Mission KW - image analysis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859791949?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Widespread+effusive+volcanism+on+Mercury+likely+ended+by+about+3.5+Ga&rft.au=Byrne%2C+Paul+K%3BOstrach%2C+Lillian+R%3BFassett%2C+Caleb+I%3BChapman%2C+Clark+R%3BDenevi%2C+Brett+W%3BEvans%2C+Alexander+J%3BKlimczak%2C+Christian%3BBanks%2C+Maria+E%3BHead%2C+James+W%3BSolomon%2C+Sean+C&rft.aulast=Byrne&rft.aufirst=Paul&rft.date=2016-07-28&rft.volume=43&rft.issue=14&rft.spage=7408&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2016GL069412 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2017-01-01 N1 - Number of references - 61 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2017-01-19 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - absolute age; Archean; computer programs; contraction; cooling; cosmochronology; cratering; data processing; dimensions; effusion; extraterrestrial geology; functions; geographic information systems; image analysis; impact craters; impact features; information systems; isochrons; mapping; Mercury Planet; MESSENGER Mission; models; mosaics; planetary interiors; planets; Precambrian; resurfacing; size distribution; spatial distribution; statistical distribution; surface features; terrestrial planets; volcanic features; volcanism DO - http://dx.doi.org/10.1002/2016GL069412 ER - TY - JOUR T1 - Timelapse: A Year on Earth Seen from 1 Million Miles Away AN - 1807246511 JF - Product Design & Development AU - Goddard, NASA Y1 - 2016/07/26/ PY - 2016 DA - 2016 Jul 26 CY - Highlands Ranch PB - Advantage Business Media KW - Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807246511?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acomputing&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Product+Design+%26+Development&rft.atitle=Timelapse%3A+A+Year+on+Earth+Seen+from+1+Million+Miles+Away&rft.au=Goddard%2C+NASA&rft.aulast=Goddard&rft.aufirst=NASA&rft.date=2016-07-26&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Product+Design+%26+Development&rft.issn=&rft_id=info:doi/ LA - English DB - Entrepreneurship Database; ProQuest Central N1 - Copyright - Copyright Advantage Business Media Jul 26, 2016 N1 - Last updated - 2016-07-30 N1 - CODEN - PRDDA4 ER - TY - JOUR T1 - An exceptional grouping of lunar highland smooth plains; geography, morphology, and possible origins AN - 1803780470; 2016-060448 JF - Icarus AU - Robinson, Mark S AU - Thomas, P C AU - Plescia, J B AU - Denevi, Brett W AU - Burns, K N AU - Bowman-Cisneros, Ernest AU - Henriksen, M R AU - van der Bogert, Carolyn H AU - Hiesinger, H AU - Mahanti, Prasun AU - Stelling, Richard W AU - Povilaitis, Reinhold Z Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 121 EP - 134 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - volcanic rocks KW - impact features KW - Lunar Reconnaissance Orbiter KW - igneous rocks KW - Lunar Reconnaissance Orbiter Camera KW - effusion KW - lunar highlands KW - melts KW - impact melts KW - topography KW - farside KW - crater counts KW - volcanism KW - age KW - plains KW - Copernican KW - Moon KW - ejecta KW - distribution KW - morphology KW - pyroclastics KW - color KW - depressions KW - impact craters KW - reflectance KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803780470?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+exceptional+grouping+of+lunar+highland+smooth+plains%3B+geography%2C+morphology%2C+and+possible+origins&rft.au=Robinson%2C+Mark+S%3BThomas%2C+P+C%3BPlescia%2C+J+B%3BDenevi%2C+Brett+W%3BBurns%2C+K+N%3BBowman-Cisneros%2C+Ernest%3BHenriksen%2C+M+R%3Bvan+der+Bogert%2C+Carolyn+H%3BHiesinger%2C+H%3BMahanti%2C+Prasun%3BStelling%2C+Richard+W%3BPovilaitis%2C+Reinhold+Z&rft.aulast=Marchi&rft.aufirst=Simone&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 56 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - age; color; Copernican; crater counts; depressions; distribution; effusion; ejecta; farside; igneous rocks; impact craters; impact features; impact melts; lunar highlands; Lunar Reconnaissance Orbiter; Lunar Reconnaissance Orbiter Camera; melts; Moon; morphology; plains; pyroclastics; reflectance; regolith; topography; volcanic rocks; volcanism DO - http://dx.doi.org/10.1016/j.icarus.2015.06.028 ER - TY - JOUR T1 - The lunar Gruithuisen silicic extrusive domes; topographic configuration, morphology, ages, and internal structure AN - 1803780353; 2016-060459 JF - Icarus AU - Ivanov, Mikhail A AU - Head, James W AU - Bystrov, A Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 262 EP - 283 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - albedo KW - impact features KW - Lunar Reconnaissance Orbiter KW - Lunar Reconnaissance Orbiter Camera KW - lunar highlands KW - topography KW - volcanism KW - Iridum Crater KW - age KW - acidic composition KW - Moon KW - Oceanus Procellarum KW - Gruithuisen Domes KW - maria KW - size KW - morphology KW - lava domes KW - Mare Imbrium KW - viscosity KW - volume KW - volcanoes KW - LOLA KW - impact craters KW - Kaguya Mission KW - fractional crystallization KW - Diviner Lunar Radiometer Experiment KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803780353?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+lunar+Gruithuisen+silicic+extrusive+domes%3B+topographic+configuration%2C+morphology%2C+ages%2C+and+internal+structure&rft.au=Ivanov%2C+Mikhail+A%3BHead%2C+James+W%3BBystrov%2C+A&rft.aulast=Ivanov&rft.aufirst=Mikhail&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=262&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.12.015 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 71 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table, geol. sketch maps N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - acidic composition; age; albedo; Diviner Lunar Radiometer Experiment; fractional crystallization; Gruithuisen Domes; impact craters; impact features; Iridum Crater; Kaguya Mission; lava domes; LOLA; lunar highlands; Lunar Reconnaissance Orbiter; Lunar Reconnaissance Orbiter Camera; Mare Imbrium; maria; Moon; morphology; Oceanus Procellarum; size; topography; viscosity; volcanism; volcanoes; volume DO - http://dx.doi.org/10.1016/j.icarus.2015.12.015 ER - TY - JOUR T1 - Photometric characterization of the Chang'e 3 landing site using LROC NAC images AN - 1803780297; 2016-060445 JF - Icarus AU - Clegg-Watkins, R N AU - Jolliff, B L AU - Boyd, Aaron K AU - Robinson, Mark S AU - Wagner, R AU - Stopar, J D AU - Plescia, J B AU - Speyerer, E J Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 84 EP - 95 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - soils KW - imagery KW - maturity KW - Moon KW - Lunar Reconnaissance Orbiter Camera KW - Luna Program KW - data processing KW - Apollo Program KW - landing sites KW - weathering KW - space weathering KW - physical properties KW - photometry KW - Mare Imbrium KW - Surveyor Program KW - reflectance KW - Chang'E-3 Mission KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803780297?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Photometric+characterization+of+the+Chang%27e+3+landing+site+using+LROC+NAC+images&rft.au=Clegg-Watkins%2C+R+N%3BJolliff%2C+B+L%3BBoyd%2C+Aaron+K%3BRobinson%2C+Mark+S%3BWagner%2C+R%3BStopar%2C+J+D%3BPlescia%2C+J+B%3BSpeyerer%2C+E+J&rft.aulast=Clegg-Watkins&rft.aufirst=R&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=84&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.12.010 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 78 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-11-17 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - Apollo Program; Chang'E-3 Mission; data processing; imagery; landing sites; Luna Program; Lunar Reconnaissance Orbiter Camera; Mare Imbrium; maturity; Moon; photometry; physical properties; reflectance; regolith; soils; space weathering; Surveyor Program; weathering DO - http://dx.doi.org/10.1016/j.icarus.2015.12.010 ER - TY - JOUR T1 - Gravitational search for cryptovolcanism on the Moon; evidence for large volumes of early igneous activity AN - 1803780296; 2016-060460 JF - Icarus AU - Sori, Michael M AU - Zuber, Maria T AU - Head, James W AU - Kiefer, Walter S Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 284 EP - 295 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - magnesium KW - volcanic rocks KW - density KW - Lunar Reconnaissance Orbiter KW - Mare Australe KW - igneous rocks KW - mapping KW - thermal history KW - Lomonosov-Fleming Basin KW - isostasy KW - gravity anomalies KW - volcanism KW - basalts KW - thickness KW - alkaline earth metals KW - Moon KW - GRAIL Mission KW - metals KW - volume KW - Grail Recovery and Interior Laboratory Mission KW - LOLA KW - Bouguer anomalies KW - mare basalts KW - cryptomaria KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803780296?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Gravitational+search+for+cryptovolcanism+on+the+Moon%3B+evidence+for+large+volumes+of+early+igneous+activity&rft.au=Sori%2C+Michael+M%3BZuber%2C+Maria+T%3BHead%2C+James+W%3BKiefer%2C+Walter+S&rft.aulast=Sori&rft.aufirst=Michael&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=284&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.02.009 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 122 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; basalts; Bouguer anomalies; cryptomaria; density; GRAIL Mission; Grail Recovery and Interior Laboratory Mission; gravity anomalies; igneous rocks; isostasy; LOLA; Lomonosov-Fleming Basin; Lunar Reconnaissance Orbiter; magnesium; mapping; Mare Australe; mare basalts; metals; Moon; thermal history; thickness; volcanic rocks; volcanism; volume DO - http://dx.doi.org/10.1016/j.icarus.2016.02.009 ER - TY - JOUR T1 - The Lunar Reconnaissance Orbiter Mission AN - 1803780289; 2016-060439 JF - Icarus Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 356 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - cratering KW - volatiles KW - topography KW - Moon KW - Lunar Reconnaissance Orbiter KW - volcanism KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803780289?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Lunar+Reconnaissance+Orbiter+Mission&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - PubXState - NY N1 - Document feature - illus. N1 - SuppNotes - Individual papers within scope are cited separately N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - cratering; Lunar Reconnaissance Orbiter; Moon; regolith; topography; volatiles; volcanism ER - TY - JOUR T1 - A new study of crater concentric ridges on the Moon AN - 1803780233; 2016-060453 JF - Icarus AU - Atwood-Stone, Corwin AU - Bray, Veronica J AU - McEwen, Alfred S Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 196 EP - 204 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - cratering KW - impact features KW - Moon KW - Lunar Reconnaissance Orbiter Camera KW - mapping KW - impacts KW - ejecta KW - distribution KW - concentric ridges KW - lunar craters KW - terrestrial planets KW - morphology KW - planets KW - topography KW - craters KW - mosaics KW - Mercury Planet KW - surface features KW - impact craters KW - ejecta blankets KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803780233?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+new+study+of+crater+concentric+ridges+on+the+Moon&rft.au=Atwood-Stone%2C+Corwin%3BBray%2C+Veronica+J%3BMcEwen%2C+Alfred+S&rft.aulast=Atwood-Stone&rft.aufirst=Corwin&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=196&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.03.012 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 18 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - concentric ridges; cratering; craters; distribution; ejecta; ejecta blankets; impact craters; impact features; impacts; lunar craters; Lunar Reconnaissance Orbiter Camera; mapping; Mercury Planet; Moon; morphology; mosaics; planets; surface features; terrestrial planets; topography DO - http://dx.doi.org/10.1016/j.icarus.2016.03.012 ER - TY - JOUR T1 - The distribution and extent of lunar swirls AN - 1803780220; 2016-060442 JF - Icarus AU - Denevi, Brett W AU - Robinson, Mark S AU - Boyd, Aaron K AU - Blewett, David T AU - Klima, Rachel L Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 53 EP - 67 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - lunar swirls KW - albedo KW - imagery KW - optical spectra KW - Lunar Reconnaissance Orbiter Camera KW - solar wind KW - lunar craters KW - iron KW - mosaics KW - surface features KW - ultraviolet spectra KW - spectra KW - color imagery KW - Copernican KW - agglutinates KW - optical maturity KW - King Crater KW - Moon KW - magnetic anomalies KW - distribution KW - South Pole-Aitken Basin KW - Eratosthenian KW - metals KW - Mare Marginis KW - reflectance KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803780220?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Lunar+field+geological+interpretations+assisted+by+LROC%2C+mini-RF+and+M3%3B+Taurus-Littrow&rft.au=Schmitt%2C+Harrison+H%3BPetro%2C+Noah+E%3BRobinson%2C+Mark+Southwick%3BWells%2C+Ronald%3BWeiss%2C+Benjamin+P%3BMercer%2C+Cameron+Mark%3BAnonymous&rft.aulast=Schmitt&rft.aufirst=Harrison&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 68 N1 - PubXState - NY N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - agglutinates; albedo; color imagery; Copernican; distribution; Eratosthenian; imagery; iron; King Crater; lunar craters; Lunar Reconnaissance Orbiter Camera; lunar swirls; magnetic anomalies; Mare Marginis; metals; Moon; mosaics; optical maturity; optical spectra; reflectance; regolith; solar wind; South Pole-Aitken Basin; spectra; surface features; ultraviolet spectra DO - http://dx.doi.org/10.1016/j.icarus.2016.01.017 ER - TY - JOUR T1 - The distribution and origin of lunar light plains around Orientale Basin AN - 1803780203; 2016-060449 JF - Icarus AU - Meyer, Heather M AU - Denevi, Brett W AU - Boyd, Aaron K AU - Robinson, Mark S Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 135 EP - 145 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - relative age KW - impact features KW - Moon KW - Mare Orientale KW - Lunar Reconnaissance Orbiter Camera KW - mapping KW - lunar highlands KW - impacts KW - ejecta KW - distribution KW - composition KW - basins KW - plains KW - impact craters KW - fluidization KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803780203?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+distribution+and+origin+of+lunar+light+plains+around+Orientale+Basin&rft.au=Meyer%2C+Heather+M%3BDenevi%2C+Brett+W%3BBoyd%2C+Aaron+K%3BRobinson%2C+Mark+S&rft.aulast=Meyer&rft.aufirst=Heather&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=135&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.02.014 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 56 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - basins; composition; distribution; ejecta; fluidization; impact craters; impact features; impacts; lunar highlands; Lunar Reconnaissance Orbiter Camera; mapping; Mare Orientale; Moon; plains; relative age DO - http://dx.doi.org/10.1016/j.icarus.2016.02.014 ER - TY - JOUR T1 - Crater size-frequency distribution measurements and age of the Compton-Belkovich volcanic complex AN - 1803780200; 2016-060455 JF - Icarus AU - Shirley, Katherine A AU - Zanetti, Mike AU - Jolliff, B L AU - van der Bogert, Carolyn H AU - Hiesinger, H Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 214 EP - 223 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - cratering KW - albedo KW - impact features KW - Lunar Reconnaissance Orbiter Camera KW - resurfacing KW - Belkovich Crater KW - topography KW - farside KW - chronology KW - volcanism KW - silica KW - age KW - acidic composition KW - Moon KW - Compton Crater KW - size KW - morphology KW - physical properties KW - Hayn Crater KW - craters KW - metals KW - thorium KW - impact craters KW - actinides KW - Compton-Belkovich volcanic complex KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803780200?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Crater+size-frequency+distribution+measurements+and+age+of+the+Compton-Belkovich+volcanic+complex&rft.au=Shirley%2C+Katherine+A%3BZanetti%2C+Mike%3BJolliff%2C+B+L%3Bvan+der+Bogert%2C+Carolyn+H%3BHiesinger%2C+H&rft.aulast=Shirley&rft.aufirst=Katherine&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=214&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.03.015 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 41 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - acidic composition; actinides; age; albedo; Belkovich Crater; chronology; Compton Crater; Compton-Belkovich volcanic complex; cratering; craters; farside; Hayn Crater; impact craters; impact features; Lunar Reconnaissance Orbiter Camera; metals; Moon; morphology; physical properties; resurfacing; silica; size; thorium; topography; volcanism DO - http://dx.doi.org/10.1016/j.icarus.2016.03.015 ER - TY - JOUR T1 - Lunar crater ejecta; physical properties revealed by radar and thermal infrared observations AN - 1803780141; 2016-060452 JF - Icarus AU - Ghent, Rebecca R AU - Carter, Lynn M AU - Bandfield, Joshua L AU - Udovicic, C J Tai AU - Campbell, Bruce A Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 182 EP - 195 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - Earth-based observations KW - Moon KW - Lunar Reconnaissance Orbiter KW - thermal infrared spectra KW - radar methods KW - Mini-RF KW - ejecta KW - melts KW - lunar craters KW - size KW - infrared spectra KW - impact melts KW - physical properties KW - thermomechanical properties KW - temporal distribution KW - spectra KW - Diviner Lunar Radiometer Experiment KW - rocks KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803780141?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Lunar+crater+ejecta%3B+physical+properties+revealed+by+radar+and+thermal+infrared+observations&rft.au=Ghent%2C+Rebecca+R%3BCarter%2C+Lynn+M%3BBandfield%2C+Joshua+L%3BUdovicic%2C+C+J+Tai%3BCampbell%2C+Bruce+A&rft.aulast=Ghent&rft.aufirst=Rebecca&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=182&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.12.014 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 53 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - Diviner Lunar Radiometer Experiment; Earth-based observations; ejecta; impact melts; infrared spectra; lunar craters; Lunar Reconnaissance Orbiter; melts; Mini-RF; Moon; physical properties; radar methods; regolith; rocks; size; spectra; temporal distribution; thermal infrared spectra; thermomechanical properties DO - http://dx.doi.org/10.1016/j.icarus.2015.12.014 ER - TY - JOUR T1 - The Lunar Reconnaissance Orbiter Mission; six years of science and exploration at the Moon AN - 1803780117; 2016-060440 JF - Icarus AU - Keller, John W AU - Petro, Noah E AU - Vondrak, R R Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 2 EP - 24 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - lunar swirls KW - Lunar Reconnaissance Orbiter KW - Lunar Reconnaissance Orbiter Camera KW - Mini-RF KW - mapping KW - Cosmic Ray Telescope for the Effects of Radiation KW - volcanic features KW - volcanism KW - background radiation KW - spacecraft KW - acidic composition KW - basaltic composition KW - heat flux KW - CRaTER instrument KW - Moon KW - global KW - Miniature-Frequency Technology Demonstration KW - Lunar Exploration Neutron Detector KW - tides KW - volatiles KW - planetary interiors KW - Lyman Alpha Mapping Project KW - LOLA KW - thermomechanical properties KW - Diviner Lunar Radiometer Experiment KW - regolith KW - instruments KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803780117?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Lunar+Reconnaissance+Orbiter+Mission%3B+six+years+of+science+and+exploration+at+the+Moon&rft.au=Keller%2C+John+W%3BPetro%2C+Noah+E%3BVondrak%2C+R+R&rft.aulast=Keller&rft.aufirst=John&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=2&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.11.024 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 161 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - acidic composition; background radiation; basaltic composition; Cosmic Ray Telescope for the Effects of Radiation; CRaTER instrument; Diviner Lunar Radiometer Experiment; global; heat flux; instruments; LOLA; Lunar Exploration Neutron Detector; Lunar Reconnaissance Orbiter; Lunar Reconnaissance Orbiter Camera; lunar swirls; Lyman Alpha Mapping Project; mapping; Mini-RF; Miniature-Frequency Technology Demonstration; Moon; planetary interiors; regolith; remote sensing; spacecraft; thermomechanical properties; tides; volatiles; volcanic features; volcanism DO - http://dx.doi.org/10.1016/j.icarus.2015.11.024 ER - TY - JOUR T1 - Improved calibration of reflectance data from the LRO Lunar Orbiter Laser Altimeter (LOLA) and implications for space weathering AN - 1803780101; 2016-060462 JF - Icarus AU - Lemelin, Myriam AU - Lucey, P G AU - Neumann, G A AU - Mazarico, E M AU - Barker, Michael K AU - Kakazu, A AU - Trang, D AU - Smith, D E AU - Zuber, Maria T Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 315 EP - 328 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - albedo KW - imagery KW - Lunar Reconnaissance Orbiter KW - solar wind KW - Lunar Prospector Program KW - calibration KW - lunar highlands KW - iron KW - infrared spectra KW - photometry KW - errors KW - mixing KW - spectra KW - radiative transfer KW - lunar soils KW - soils KW - Moon KW - maria KW - weathering KW - models KW - space weathering KW - metals KW - LOLA KW - latitude KW - corrections KW - reflectance KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803780101?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Improved+calibration+of+reflectance+data+from+the+LRO+Lunar+Orbiter+Laser+Altimeter+%28LOLA%29+and+implications+for+space+weathering&rft.au=Lemelin%2C+Myriam%3BLucey%2C+P+G%3BNeumann%2C+G+A%3BMazarico%2C+E+M%3BBarker%2C+Michael+K%3BKakazu%2C+A%3BTrang%2C+D%3BSmith%2C+D+E%3BZuber%2C+Maria+T&rft.aulast=Lemelin&rft.aufirst=Myriam&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=315&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.02.006 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 27 N1 - PubXState - NY N1 - Document feature - illus. incl. 5 tables, sketch maps N1 - Last updated - 2016-11-17 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - albedo; calibration; corrections; errors; imagery; infrared spectra; iron; latitude; LOLA; lunar highlands; Lunar Prospector Program; Lunar Reconnaissance Orbiter; lunar soils; maria; metals; mixing; models; Moon; photometry; radiative transfer; reflectance; soils; solar wind; space weathering; spectra; weathering DO - http://dx.doi.org/10.1016/j.icarus.2016.02.006 ER - TY - JOUR T1 - The steepest slopes on the Moon from Lunar Orbiter Laser Altimeter (LOLA) data; spatial distribution and correlation with geologic features AN - 1803780018; 2016-060463 JF - Icarus AU - Kreslavsky, Mikhail A AU - Head, James W Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 329 EP - 336 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - fractured materials KW - cratering KW - shear strength KW - impact features KW - Moon KW - strength KW - slopes KW - Mare Orientale KW - correlation KW - lunar highlands KW - impacts KW - lunar craters KW - spatial distribution KW - South Pole-Aitken Basin KW - topography KW - farside KW - basins KW - LOLA KW - impact craters KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803780018?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+steepest+slopes+on+the+Moon+from+Lunar+Orbiter+Laser+Altimeter+%28LOLA%29+data%3B+spatial+distribution+and+correlation+with+geologic+features&rft.au=Kreslavsky%2C+Mikhail+A%3BHead%2C+James+W&rft.aulast=Kreslavsky&rft.aufirst=Mikhail&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=329&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.02.036 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 45 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - basins; correlation; cratering; farside; fractured materials; impact craters; impact features; impacts; LOLA; lunar craters; lunar highlands; Mare Orientale; Moon; regolith; shear strength; slopes; South Pole-Aitken Basin; spatial distribution; strength; topography DO - http://dx.doi.org/10.1016/j.icarus.2016.02.036 ER - TY - JOUR T1 - Origin of the anomalously rocky appearance of Tsiolkovskiy Crater AN - 1803780009; 2016-060457 JF - Icarus AU - Greenhagen, Benjamin T AU - Neish, Catherine D AU - Williams, Jean-Pierre AU - Cahill, Joshua T S AU - Ghent, Rebecca R AU - Hayne, Paul O AU - Lawrence, Samuel J AU - Petro, Noah E AU - Bandfield, Joshua L Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 237 EP - 247 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - cratering KW - polarization KW - imagery KW - Tsiolkovskiy Crater KW - degradation KW - impact features KW - Lunar Reconnaissance Orbiter KW - Lunar Reconnaissance Orbiter Camera KW - Miniature Radio Frequency instrument KW - melts KW - lunar craters KW - impact melts KW - age KW - rocks KW - Copernican KW - Moon KW - anomalies KW - impacts KW - distribution KW - size KW - craters KW - Mini-RF instrument KW - impact craters KW - Diviner Lunar Radiometer Experiment KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803780009?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Origin+of+the+anomalously+rocky+appearance+of+Tsiolkovskiy+Crater&rft.au=Greenhagen%2C+Benjamin+T%3BNeish%2C+Catherine+D%3BWilliams%2C+Jean-Pierre%3BCahill%2C+Joshua+T+S%3BGhent%2C+Rebecca+R%3BHayne%2C+Paul+O%3BLawrence%2C+Samuel+J%3BPetro%2C+Noah+E%3BBandfield%2C+Joshua+L&rft.aulast=Greenhagen&rft.aufirst=Benjamin&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=237&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.02.041 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 41 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - Last updated - 2016-11-17 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - age; anomalies; Copernican; cratering; craters; degradation; distribution; Diviner Lunar Radiometer Experiment; imagery; impact craters; impact features; impact melts; impacts; lunar craters; Lunar Reconnaissance Orbiter; Lunar Reconnaissance Orbiter Camera; melts; Mini-RF instrument; Miniature Radio Frequency instrument; Moon; polarization; regolith; rocks; size; Tsiolkovskiy Crater DO - http://dx.doi.org/10.1016/j.icarus.2016.02.041 ER - TY - JOUR T1 - LRO-LAMP detection of geologically young craters within lunar permanently shaded regions AN - 1803779972; 2016-060447 JF - Icarus AU - Mandt, Kathleen E AU - Greathouse, Thomas K AU - Retherford, Kurt D AU - Gladstone, G Randall AU - Jordan, Andrew P AU - Lemelin, Myriam AU - Koeber, Steven D AU - Bowman-Cisneros, Ernest AU - Patterson, G Wesley AU - Robinson, Mark S AU - Lucey, Paul G AU - Hendrix, Amanda R AU - Hurley, Dana AU - Stickle, Angela M AU - Pryor, Wayne Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 114 EP - 120 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - LAMP instrument KW - albedo KW - relative age KW - polar regions KW - impact features KW - Moon KW - Lunar Reconnaissance Orbiter KW - far ultraviolet radiation KW - roughness KW - radar methods KW - ejecta KW - porosity KW - brightness KW - topography KW - detection KW - permanently shadowed regions KW - ultraviolet spectra KW - Lyman Alpha Mapping Project KW - impact craters KW - spectra KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803779972?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=LRO-LAMP+detection+of+geologically+young+craters+within+lunar+permanently+shaded+regions&rft.au=Mandt%2C+Kathleen+E%3BGreathouse%2C+Thomas+K%3BRetherford%2C+Kurt+D%3BGladstone%2C+G+Randall%3BJordan%2C+Andrew+P%3BLemelin%2C+Myriam%3BKoeber%2C+Steven+D%3BBowman-Cisneros%2C+Ernest%3BPatterson%2C+G+Wesley%3BRobinson%2C+Mark+S%3BLucey%2C+Paul+G%3BHendrix%2C+Amanda+R%3BHurley%2C+Dana%3BStickle%2C+Angela+M%3BPryor%2C+Wayne&rft.aulast=Mandt&rft.aufirst=Kathleen&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=114&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.07.031 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 36 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-11-17 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - albedo; brightness; detection; ejecta; far ultraviolet radiation; impact craters; impact features; LAMP instrument; Lunar Reconnaissance Orbiter; Lyman Alpha Mapping Project; Moon; permanently shadowed regions; polar regions; porosity; radar methods; regolith; relative age; roughness; spectra; topography; ultraviolet spectra DO - http://dx.doi.org/10.1016/j.icarus.2015.07.031 ER - TY - JOUR T1 - Geomorphologic mapping of the lunar crater Tycho and its impact melt deposits AN - 1803779962; 2016-060451 JF - Icarus AU - Krueger, Tim AU - van der Bogert, Carolyn H AU - Hiesinger, H Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 164 EP - 181 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - cratering KW - high-resolution methods KW - Moon KW - Lunar Reconnaissance Orbiter Camera KW - mapping KW - impacts KW - ejecta KW - distribution KW - melts KW - lunar craters KW - impact melts KW - topography KW - oblique orientation KW - Tycho Crater KW - Kaguya Mission KW - geomorphology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803779962?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Geomorphologic+mapping+of+the+lunar+crater+Tycho+and+its+impact+melt+deposits&rft.au=Krueger%2C+Tim%3Bvan+der+Bogert%2C+Carolyn+H%3BHiesinger%2C+H&rft.aulast=Krueger&rft.aufirst=Tim&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=164&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.02.018 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 74 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - cratering; distribution; ejecta; geomorphology; high-resolution methods; impact melts; impacts; Kaguya Mission; lunar craters; Lunar Reconnaissance Orbiter Camera; mapping; melts; Moon; oblique orientation; topography; Tycho Crater DO - http://dx.doi.org/10.1016/j.icarus.2016.02.018 ER - TY - JOUR T1 - Mini-RF and LROC observations of mare crater layering relationships AN - 1803779933; 2016-060456 JF - Icarus AU - Stickle, Angela M AU - Patterson, G W AU - Cahill, Joshua T S AU - Bussey, D B J Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 224 EP - 236 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - relative age KW - polarization KW - degradation KW - lava flows KW - Moon KW - Lunar Reconnaissance Orbiter KW - radar methods KW - impacts KW - Miniature Radio Frequency instrument KW - maria KW - excavations KW - ejecta KW - lunar craters KW - layered materials KW - size KW - craters KW - volume KW - Mini-RF instrument KW - thickness KW - ejecta blankets KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803779933?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mini-RF+and+LROC+observations+of+mare+crater+layering+relationships&rft.au=Stickle%2C+Angela+M%3BPatterson%2C+G+W%3BCahill%2C+Joshua+T+S%3BBussey%2C+D+B+J&rft.aulast=Stickle&rft.aufirst=Angela&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=224&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.03.014 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 67 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - craters; degradation; ejecta; ejecta blankets; excavations; impacts; lava flows; layered materials; lunar craters; Lunar Reconnaissance Orbiter; maria; Mini-RF instrument; Miniature Radio Frequency instrument; Moon; polarization; radar methods; relative age; size; thickness; volume DO - http://dx.doi.org/10.1016/j.icarus.2016.03.014 ER - TY - JOUR T1 - Signatures of volatiles in the lunar proton albedo AN - 1803779918; 2016-060441 JF - Icarus AU - Schwadron, N A AU - Wilson, J K AU - Looper, M D AU - Jordan, Andrew P AU - Spence, H E AU - Blake, J B AU - Case, A W AU - Iwata, Y AU - Kasper, J C AU - Farrell, W M AU - Lawrence, D J AU - Livadiotis, G AU - Mazur, J AU - Petro, Noah E AU - Pieters, C AU - Robinson, Mark S AU - Smith, S AU - Townsend, L W AU - Zeitlin, C Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 25 EP - 35 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - albedo KW - polar regions KW - CRaTER instrument KW - Moon KW - Lunar Reconnaissance Orbiter KW - protons KW - lunar highlands KW - hydration KW - Cosmic Ray Telescope for the Effects of Radiation KW - volatiles KW - neutrons KW - ice KW - hydrogen KW - cosmic rays KW - latitude KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803779918?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Signatures+of+volatiles+in+the+lunar+proton+albedo&rft.au=Schwadron%2C+N+A%3BWilson%2C+J+K%3BLooper%2C+M+D%3BJordan%2C+Andrew+P%3BSpence%2C+H+E%3BBlake%2C+J+B%3BCase%2C+A+W%3BIwata%2C+Y%3BKasper%2C+J+C%3BFarrell%2C+W+M%3BLawrence%2C+D+J%3BLivadiotis%2C+G%3BMazur%2C+J%3BPetro%2C+Noah+E%3BPieters%2C+C%3BRobinson%2C+Mark+S%3BSmith%2C+S%3BTownsend%2C+L+W%3BZeitlin%2C+C&rft.aulast=Schwadron&rft.aufirst=N&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.12.003 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 43 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - albedo; Cosmic Ray Telescope for the Effects of Radiation; cosmic rays; CRaTER instrument; hydration; hydrogen; ice; latitude; lunar highlands; Lunar Reconnaissance Orbiter; Moon; neutrons; polar regions; protons; regolith; volatiles DO - http://dx.doi.org/10.1016/j.icarus.2015.12.003 ER - TY - JOUR T1 - Complex explosive volcanic activity on the Moon within Oppenheimer Crater AN - 1803775934; 2016-060461 JF - Icarus AU - Bennett, Kristen A AU - Horgan, Briony H N AU - Gaddis, Lisa R AU - Greenhagen, Benjamin T AU - Allen, Carlton C AU - Hayne, Paul O AU - Bell, James F, III AU - Paige, David A Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 296 EP - 314 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - silicates KW - near-infrared spectra KW - imagery KW - volcanic rocks KW - igneous rocks KW - Lunar Reconnaissance Orbiter Camera KW - thermal infrared spectra KW - mapping KW - iron-rich composition KW - lunar craters KW - iron KW - explosive eruptions KW - infrared spectra KW - pyroxene group KW - mineral composition KW - clinopyroxene KW - volcanism KW - Moon Mineralogy Mapper KW - composition KW - vulcanian-type eruptions KW - spectra KW - chain silicates KW - Oppenheimer Crater KW - Moon KW - Chandrayaan Mission KW - strombolian-type eruptions KW - South Pole-Aitken Basin KW - pyroclastics KW - metals KW - Clementine Program KW - Diviner Lunar Radiometer Experiment KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803775934?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Complex+explosive+volcanic+activity+on+the+Moon+within+Oppenheimer+Crater&rft.au=Bennett%2C+Kristen+A%3BHorgan%2C+Briony+H+N%3BGaddis%2C+Lisa+R%3BGreenhagen%2C+Benjamin+T%3BAllen%2C+Carlton+C%3BHayne%2C+Paul+O%3BBell%2C+James+F%2C+III%3BPaige%2C+David+A&rft.aulast=Bennett&rft.aufirst=Kristen&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=296&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.02.007 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 63 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - chain silicates; Chandrayaan Mission; Clementine Program; clinopyroxene; composition; Diviner Lunar Radiometer Experiment; explosive eruptions; igneous rocks; imagery; infrared spectra; iron; iron-rich composition; lunar craters; Lunar Reconnaissance Orbiter Camera; mapping; metals; mineral composition; Moon; Moon Mineralogy Mapper; near-infrared spectra; Oppenheimer Crater; pyroclastics; pyroxene group; silicates; South Pole-Aitken Basin; spectra; strombolian-type eruptions; thermal infrared spectra; volcanic rocks; volcanism; vulcanian-type eruptions DO - http://dx.doi.org/10.1016/j.icarus.2016.02.007 ER - TY - JOUR T1 - The porosity of the upper lunar regolith AN - 1803774935; 2016-060444 JF - Icarus AU - Hapke, Bruce AU - Sato, Hiroyuki Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 75 EP - 83 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - optical maturity KW - Moon KW - Sample 62231 KW - Lunar Reconnaissance Orbiter Camera KW - roughness KW - Apollo Program KW - porosity KW - photometry KW - lunar samples KW - Kaguya Mission KW - reflectance KW - regolith KW - Apollo 16 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803774935?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+porosity+of+the+upper+lunar+regolith&rft.au=Hapke%2C+Bruce%3BSato%2C+Hiroyuki&rft.aulast=Hapke&rft.aufirst=Bruce&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=75&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.10.031 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 22 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - Apollo 16; Apollo Program; Kaguya Mission; Lunar Reconnaissance Orbiter Camera; lunar samples; Moon; optical maturity; photometry; porosity; reflectance; regolith; roughness; Sample 62231 DO - http://dx.doi.org/10.1016/j.icarus.2015.10.031 ER - TY - JOUR T1 - The formation of peak-ring basins; working hypotheses and path forward in using observations to constrain models of impact-basin formation AN - 1803774894; 2016-060450 JF - Icarus AU - Baker, David M H AU - Head, James W AU - Collins, Gareth S AU - Potter, Ross W K Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 146 EP - 163 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - cratering KW - imagery KW - impact features KW - Lunar Reconnaissance Orbiter KW - uplifts KW - simulation KW - lunar craters KW - gravity methods KW - impact basins KW - basins KW - faults KW - numerical models KW - Moon KW - geophysical methods KW - morphometry KW - altimetry KW - impacts KW - ring structures KW - morphology KW - models KW - transient phenomena KW - complex craters KW - peak-ring basins KW - impact craters KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803774894?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+formation+of+peak-ring+basins%3B+working+hypotheses+and+path+forward+in+using+observations+to+constrain+models+of+impact-basin+formation&rft.au=Baker%2C+David+M+H%3BHead%2C+James+W%3BCollins%2C+Gareth+S%3BPotter%2C+Ross+W+K&rft.aulast=Baker&rft.aufirst=David+M&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=146&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.11.033 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 115 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - altimetry; basins; complex craters; cratering; faults; geophysical methods; gravity methods; imagery; impact basins; impact craters; impact features; impacts; lunar craters; Lunar Reconnaissance Orbiter; models; Moon; morphology; morphometry; numerical models; peak-ring basins; remote sensing; ring structures; simulation; transient phenomena; uplifts DO - http://dx.doi.org/10.1016/j.icarus.2015.11.033 ER - TY - JOUR T1 - Optimized traverse planning for future polar prospectors based on lunar topography AN - 1803774874; 2016-060464 JF - Icarus AU - Speyerer, E J AU - Lawrence, Samuel J AU - Stopar, J D AU - Glaeser, P AU - Robinson, Mark S AU - Jolliff, B L Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 337 EP - 345 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - resources KW - Lunar Reconnaissance Orbiter KW - Lunar Reconnaissance Orbiter Camera KW - geotraverses KW - data processing KW - landing sites KW - digital terrain models KW - exploration KW - topography KW - future KW - permanently shadowed regions KW - algorithms KW - lunar soils KW - polar regions KW - Moon KW - Shackleton Crater KW - optimization KW - rovers KW - volatiles KW - planning KW - LOLA KW - Diviner Lunar Radiometer Experiment KW - regolith KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803774874?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Optimized+traverse+planning+for+future+polar+prospectors+based+on+lunar+topography&rft.au=Speyerer%2C+E+J%3BLawrence%2C+Samuel+J%3BStopar%2C+J+D%3BGlaeser%2C+P%3BRobinson%2C+Mark+S%3BJolliff%2C+B+L&rft.aulast=Speyerer&rft.aufirst=E&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=337&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.03.011 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 51 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2016-11-17 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - algorithms; data processing; digital terrain models; Diviner Lunar Radiometer Experiment; exploration; future; geotraverses; landing sites; LOLA; Lunar Reconnaissance Orbiter; Lunar Reconnaissance Orbiter Camera; lunar soils; Moon; optimization; permanently shadowed regions; planning; polar regions; regolith; remote sensing; resources; rovers; Shackleton Crater; topography; volatiles DO - http://dx.doi.org/10.1016/j.icarus.2016.03.011 ER - TY - JOUR T1 - The Lassell Massif; a silicic lunar volcano AN - 1803774826; 2016-060458 JF - Icarus AU - Ashley, James W AU - Robinson, Mark S AU - Stopar, J D AU - Glotch, T D AU - Hawke, B Ray AU - van der Bogert, Carolyn H AU - Hiesinger, H AU - Lawrence, Samuel J AU - Jolliff, B L AU - Greenhagen, Benjamin T AU - Giguere, T A AU - Paige, David A Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 248 EP - 261 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - volcanic rocks KW - Lunar Reconnaissance Orbiter KW - igneous rocks KW - resurfacing KW - digital terrain models KW - lunar craters KW - explosive eruptions KW - infrared spectra KW - volcanic features KW - volcanism KW - age KW - thermal emission KW - acidic composition KW - spectra KW - vents KW - Moon KW - Lassell Massif KW - Mare Nubium KW - anomalies KW - size KW - morphology KW - calderas KW - pyroclastics KW - volcanoes KW - reflectance KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803774826?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Lassell+Massif%3B+a+silicic+lunar+volcano&rft.au=Ashley%2C+James+W%3BRobinson%2C+Mark+S%3BStopar%2C+J+D%3BGlotch%2C+T+D%3BHawke%2C+B+Ray%3Bvan+der+Bogert%2C+Carolyn+H%3BHiesinger%2C+H%3BLawrence%2C+Samuel+J%3BJolliff%2C+B+L%3BGreenhagen%2C+Benjamin+T%3BGiguere%2C+T+A%3BPaige%2C+David+A&rft.aulast=Ashley&rft.aufirst=James&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=248&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.12.036 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 69 N1 - PubXState - NY N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - acidic composition; age; anomalies; calderas; digital terrain models; explosive eruptions; igneous rocks; infrared spectra; Lassell Massif; lunar craters; Lunar Reconnaissance Orbiter; Mare Nubium; Moon; morphology; pyroclastics; reflectance; resurfacing; size; spectra; thermal emission; vents; volcanic features; volcanic rocks; volcanism; volcanoes DO - http://dx.doi.org/10.1016/j.icarus.2015.12.036 ER - TY - JOUR T1 - Lunar swirls; far-UV characteristics AN - 1803774744; 2016-060443 JF - Icarus AU - Hendrix, A R AU - Greathouse, Thomas K AU - Retherford, Kurt D AU - Mandt, K E AU - Gladstone, G Randall AU - Kaufmann, D E AU - Hurley, D M AU - Feldman, P D AU - Pryor, W R AU - Stern, S A AU - Cahill, Joshua T S Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 68 EP - 74 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - silicates KW - lunar swirls KW - LAMP instrument KW - Reiner Gamma KW - plagioclase KW - imagery KW - maturity KW - Moon KW - Lunar Reconnaissance Orbiter KW - far ultraviolet radiation KW - solar wind KW - lunar highlands KW - maria KW - iron KW - anorthite KW - metals KW - ultraviolet spectra KW - sorting KW - Lyman Alpha Mapping Project KW - framework silicates KW - spectra KW - Gerasimovich KW - feldspar group KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803774744?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Lunar+swirls%3B+far-UV+characteristics&rft.au=Hendrix%2C+A+R%3BGreathouse%2C+Thomas+K%3BRetherford%2C+Kurt+D%3BMandt%2C+K+E%3BGladstone%2C+G+Randall%3BKaufmann%2C+D+E%3BHurley%2C+D+M%3BFeldman%2C+P+D%3BPryor%2C+W+R%3BStern%2C+S+A%3BCahill%2C+Joshua+T+S&rft.aulast=Hendrix&rft.aufirst=A&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=68&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.01.003 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 25 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2016-11-17 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - anorthite; far ultraviolet radiation; feldspar group; framework silicates; Gerasimovich; imagery; iron; LAMP instrument; lunar highlands; Lunar Reconnaissance Orbiter; lunar swirls; Lyman Alpha Mapping Project; maria; maturity; metals; Moon; plagioclase; Reiner Gamma; silicates; solar wind; sorting; spectra; ultraviolet spectra DO - http://dx.doi.org/10.1016/j.icarus.2016.01.003 ER - TY - JOUR T1 - The temperatures of Giordano Bruno Crater observed by the Diviner Lunar Radiometer Experiment; application of an effective field of view model for a point-based data set AN - 1803774732; 2016-060454 JF - Icarus AU - Williams, Jean Pierre AU - Sefton-Nash, Elliot AU - Paige, David A Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 205 EP - 213 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - Giordano Bruno Crater KW - effective field or view KW - impact features KW - Moon KW - Lunar Reconnaissance Orbiter KW - data processing KW - brightness temperature KW - mapping KW - ejecta KW - temperature KW - geometry KW - models KW - micrometeorites KW - meteorites KW - craters KW - radiometers KW - thermomechanical properties KW - heterogeneity KW - Diviner Lunar Radiometer Experiment KW - regolith KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803774732?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+temperatures+of+Giordano+Bruno+Crater+observed+by+the+Diviner+Lunar+Radiometer+Experiment%3B+application+of+an+effective+field+of+view+model+for+a+point-based+data+set&rft.au=Williams%2C+Jean+Pierre%3BSefton-Nash%2C+Elliot%3BPaige%2C+David+A&rft.aulast=Williams&rft.aufirst=Jean&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=205&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.10.034 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 33 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - brightness temperature; craters; data processing; Diviner Lunar Radiometer Experiment; effective field or view; ejecta; geometry; Giordano Bruno Crater; heterogeneity; impact features; instruments; Lunar Reconnaissance Orbiter; mapping; meteorites; micrometeorites; models; Moon; radiometers; regolith; temperature; thermomechanical properties DO - http://dx.doi.org/10.1016/j.icarus.2015.10.034 ER - TY - JOUR T1 - A new lunar digital elevation model from the Lunar Orbiter Laser Altimeter and SELENE Terrain Camera AN - 1803774712; 2016-060465 JF - Icarus AU - Barker, Michael K AU - Mazarico, E M AU - Neumann, G A AU - Zuber, Maria T AU - Haruyama, J AU - Smith, D E Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 346 EP - 355 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - Moon KW - altimetry KW - geodesy KW - digital terrain models KW - errors KW - Terrain Camera KW - LOLA KW - orbital observations KW - Kaguya Mission KW - corrections KW - algorithms KW - accuracy KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803774712?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+new+lunar+digital+elevation+model+from+the+Lunar+Orbiter+Laser+Altimeter+and+SELENE+Terrain+Camera&rft.au=Barker%2C+Michael+K%3BMazarico%2C+E+M%3BNeumann%2C+G+A%3BZuber%2C+Maria+T%3BHaruyama%2C+J%3BSmith%2C+D+E&rft.aulast=Barker&rft.aufirst=Michael&rft.date=2016-07-15&rft.volume=273&rft.issue=&rft.spage=346&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.07.039 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 39 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2016-11-17 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - accuracy; algorithms; altimetry; corrections; digital terrain models; errors; geodesy; Kaguya Mission; LOLA; Moon; orbital observations; Terrain Camera DO - http://dx.doi.org/10.1016/j.icarus.2015.07.039 ER - TY - JOUR T1 - Lunar phase function at 1064 nm from Lunar Orbiter Laser Altimeter passive and active radiometry AN - 1803774694; 2016-060446 JF - Icarus AU - Barker, Michael K AU - Sun, X AU - Mazarico, E M AU - Neumann, G A AU - Zuber, Maria T AU - Smith, D E Y1 - 2016/07/15/ PY - 2016 DA - 2016 Jul 15 SP - 96 EP - 113 PB - Elsevier, New York, NY VL - 273 SN - 0019-1035, 0019-1035 KW - Reiner Gamma KW - near-infrared spectra KW - Lunar Reconnaissance Orbiter KW - calibration KW - lunar highlands KW - melts KW - iron KW - impact melts KW - photometry KW - mass movements KW - spectra KW - optical maturity KW - opposition effect KW - Moon KW - roughness KW - maria KW - weathering KW - space weathering KW - Jackson Crater KW - titanium KW - metals KW - LOLA KW - thermomechanical properties KW - regolith KW - instruments KW - backscattering KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803774694?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Lunar+phase+function+at+1064+nm+from+Lunar+Orbiter+Laser+Altimeter+passive+and+active+radiometry&rft.au=Barker%2C+Michael+K%3BSun%2C+X%3BMazarico%2C+E+M%3BNeumann%2C+G+A%3BZuber%2C+Maria+T%3BSmith%2C+D+E&rft.aulast=Barker&rft.aufirst=Michael&rft.date=2016-07-15&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 69 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2016-11-17 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - backscattering; calibration; impact melts; instruments; iron; Jackson Crater; LOLA; lunar highlands; Lunar Reconnaissance Orbiter; maria; mass movements; melts; metals; Moon; near-infrared spectra; opposition effect; optical maturity; photometry; regolith; Reiner Gamma; roughness; space weathering; spectra; thermomechanical properties; titanium; weathering DO - http://dx.doi.org/10.1016/j.icarus.2016.02.008 ER - TY - JOUR T1 - Warming of the Global Ocean: Spatial Structure and Water-Mass Trends AN - 1846406361; PQ0003820232 AB - This study investigates the multidecadal warming and interannual-to-decadal heat content changes in the upper ocean (0-700 m), focusing on vertical and horizontal patterns of variability. These results support a nearly monotonic warming over much of the World Ocean, with a shift toward Southern Hemisphere warming during the well-observed past decade. This is based on objectively analyzed gridded observational datasets and on a modeled state estimate. Besides the surface warming, a warming climate also has a subsurface effect manifesting as a strong deepening of the midthermocline isopycnals, which can be diagnosed directly from hydrographic data. This deepening appears to be a result of heat entering via subduction and spreading laterally from the high-latitude ventilation regions of subtropical mode waters. The basin-average multidecadal warming mainly expands the subtropical mode water volume, with weak changes in the temperature-salinity ([thetas]-S) relationship (known as "spice" variability). However, the spice contribution to the heat content can be locally large, for example in Southern Hemisphere. Multidecadal isopycnal sinking has been strongest over the southern basins and weaker elsewhere with the exception of the Gulf Stream/North Atlantic Current/subtropical recirculation gyre. At interannual to decadal time scales, wind-driven sinking and shoaling of density surfaces still dominate ocean heat content changes, while the contribution from temperature changes along density surfaces tends to decrease as time scales shorten. JF - Journal of Climate AU - Haekkinen, Sirpa AU - Rhines, Peter B AU - Worthen, Denise L AD - NASA Goddard Space Flight Center, Greenbelt, Maryland Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 4949 EP - 4963 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 29 IS - 13 SN - 0894-8755, 0894-8755 KW - Meteorological & Geoastrophysical Abstracts; Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Variability KW - Ventilation KW - Settling rate KW - Subtropical mode water KW - Basins KW - Hydrographic data KW - Gulfs KW - Streams KW - AN, North Atlantic, Gulf Stream KW - Upper ocean KW - Temperature changes KW - Marine KW - Enthalpy KW - Climate models KW - Subduction KW - Density KW - Gyres KW - Climates KW - Climate KW - Gulf Stream KW - World Ocean KW - Water temperature KW - Heat content KW - Ocean currents KW - Interannual variability KW - Oceans KW - Global warming KW - AN, North Atlantic, North Atlantic Current KW - Isopycnals KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General 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/1846406361?accountid=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+Climate&rft.atitle=Warming+of+the+Global+Ocean%3A+Spatial+Structure+and+Water-Mass+Trends&rft.au=Haekkinen%2C+Sirpa%3BRhines%2C+Peter+B%3BWorthen%2C+Denise+L&rft.aulast=Haekkinen&rft.aufirst=Sirpa&rft.date=2016-07-01&rft.volume=29&rft.issue=13&rft.spage=4949&rft.isbn=&rft.btitle=&rft.title=Journal+of+Climate&rft.issn=08948755&rft_id=info:doi/10.1175%2FJCLI-D-15-0607.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-12-01 N1 - Number of references - 32 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Ventilation; Subduction; Settling rate; Gyres; Climate; Hydrographic data; Water temperature; Heat content; Upper ocean; Ocean currents; Temperature changes; Interannual variability; Climate models; Subtropical mode water; Gulf Stream; Global warming; Isopycnals; Variability; Enthalpy; Density; Oceans; Climates; Basins; Streams; Gulfs; AN, North Atlantic, Gulf Stream; World Ocean; AN, North Atlantic, North Atlantic Current; Marine DO - http://dx.doi.org/10.1175/JCLI-D-15-0607.1 ER - TY - JOUR T1 - Perchlorate and volatiles of the brine of Lake Vida (Antarctica); implication for the in situ analysis of Mars sediments AN - 1840615424; 2016-093998 AB - The cold (-13.4 degrees C), cryoencapsulated, anoxic, interstitial brine of the >27 m thick ice of Lake Vida (Victoria Valley, Antarctica) contains 49 mu g . L (super -1) of perchlorate and 11 mu g . L (super -1) of chlorate. Lake Vida brine (LVBr) may provide an analog for potential oxychlorine-rich subsurface brine on Mars. LVBr volatiles were analyzed by solid-phase microextraction (SPME) gas chromatography-mass spectrometry (GC-MS) with two different SPME fibers. With the exception of volatile organic sulfur compounds, most other volatiles observed were artifacts produced in the GC injector when the thermal decomposition products of oxychlorines reacted with reduced carbon derived from LVBr and the SPME fiber phases. Analysis of MilliQ water with perchlorate (40 mu g . L (super -1) ) showed low level of organic artifacts, reflecting carbon limitation. In order to observe sample-derived organic compounds, both in analog samples and on Mars, the molar abundance of reduced carbon in a sample must exceed those of O (sub 2) and Cl (sub 2) produced during decomposition of oxychlorines. This suggests that the abundance of compounds observed by the Sample Analysis at Mars (SAM) instruments in Sheepbed samples (CB-3, CB5, and CB6) may be controlled by an increase in the reduced-carbon/oxychlorine ratio of these samples. To increase chances of in situ detection of Martian organics during pyrolysis-GC-MS, we propose that the derivatization agents stored on SAM may be used as an external source of reduced carbon, increasing artificially the reduced-carbon to perchlorate ratio during pyrolysis, allowing the expression of more abundant and perhaps more diverse Martian organic matter. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - Kenig, Fabien AU - Chou, Luoth AU - McKay, Christopher P AU - Jackson, W Andrew AU - Doran, Peter T AU - Murray, Alison E AU - Fritsen, Christian H Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 1190 EP - 1203 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 7 SN - 2169-9097, 2169-9097 KW - chlorine KW - chromatography KW - oxygen KW - halogens KW - mass spectra KW - Mars KW - Lake Vida KW - samples KW - perchlorate KW - terrestrial planets KW - planets KW - gas chromatography KW - volatiles KW - Victoria Valley KW - Antarctica KW - pyrolysis KW - ice KW - brines KW - sediments KW - spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840615424?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Planets&rft.atitle=Perchlorate+and+volatiles+of+the+brine+of+Lake+Vida+%28Antarctica%29%3B+implication+for+the+in+situ+analysis+of+Mars+sediments&rft.au=Kenig%2C+Fabien%3BChou%2C+Luoth%3BMcKay%2C+Christopher+P%3BJackson%2C+W+Andrew%3BDoran%2C+Peter+T%3BMurray%2C+Alison+E%3BFritsen%2C+Christian+H&rft.aulast=Kenig&rft.aufirst=Fabien&rft.date=2016-07-01&rft.volume=121&rft.issue=7&rft.spage=1190&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2015JE004964 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 58 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - Antarctica; brines; chlorine; chromatography; gas chromatography; halogens; ice; Lake Vida; Mars; mass spectra; oxygen; perchlorate; planets; pyrolysis; samples; sediments; spectra; terrestrial planets; Victoria Valley; volatiles DO - http://dx.doi.org/10.1002/2015JE004964 ER - TY - JOUR T1 - A synthesis of the basal thermal state of the Greenland ice sheet AN - 1840614688; 2016-093991 AB - The basal thermal state of an ice sheet (frozen or thawed) is an important control upon its evolution, dynamics, and response to external forcings. However, this state can only be observed directly at sparse boreholes or inferred conclusively from the presence of subglacial lakes. Here we synthesize spatially extensive inferences of the basal thermal state of the Greenland Ice Sheet to better constrain this state. Existing inferences include outputs from the eight thermomechanical ice-flow models included in the Sea Level Response to Ice Sheet Evolution (SeaRISE) effort. New remote-sensing inferences of the basal thermal state are derived from Holocene radiostratigraphy, modern surface velocity, and Moderate Resolution Imaging Spectroradiometer (MODIS) imagery. Both thermomechanical modeling and remote inferences generally agree that the Northeast Greenland Ice Stream and large portions of the southwestern ice-drainage systems are thawed at the bed, whereas the bed beneath the central ice divides, particularly their west facing slopes, is frozen. Elsewhere, there is poorer agreement regarding the basal thermal state. Both models and remote inferences rarely represent the borehole-observed basal thermal state accurately near NorthGRIP and DYE-3. This synthesis identifies a large portion of the Greenland Ice Sheet (about one third by area), where additional observations would most improve knowledge of its overall basal thermal state. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Earth Surface AU - MacGregor, Joseph A AU - Fahnestock, Mark A AU - Catania, Ginny A AU - Aschwanden, Andy AU - Clow, Gary D AU - Colgan, William T AU - Gogineni, S Prasad AU - Morlighem, Mathieu AU - Nowicki, Sophie M J AU - Paden, John D AU - Price, Stephen F AU - Seroussi, Helene Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 1328 EP - 1350 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 7 SN - 2169-9003, 2169-9003 KW - imagery KW - Quaternary KW - Arctic region KW - drainage KW - lakes KW - Greenland ice sheet KW - plastic flow KW - glacial features KW - thermal regime KW - Holocene KW - ice sheets KW - Cenozoic KW - Greenland KW - sea-level changes KW - boreholes KW - stratification KW - radiometers KW - ice KW - streams KW - glacial geology KW - subglacial lakes KW - remote sensing KW - MODIS KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840614688?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Earth+Surface&rft.atitle=A+synthesis+of+the+basal+thermal+state+of+the+Greenland+ice+sheet&rft.au=MacGregor%2C+Joseph+A%3BFahnestock%2C+Mark+A%3BCatania%2C+Ginny+A%3BAschwanden%2C+Andy%3BClow%2C+Gary+D%3BColgan%2C+William+T%3BGogineni%2C+S+Prasad%3BMorlighem%2C+Mathieu%3BNowicki%2C+Sophie+M+J%3BPaden%2C+John+D%3BPrice%2C+Stephen+F%3BSeroussi%2C+Helene&rft.aulast=MacGregor&rft.aufirst=Joseph&rft.date=2016-07-01&rft.volume=121&rft.issue=7&rft.spage=1328&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Earth+Surface&rft.issn=21699003&rft_id=info:doi/10.1002%2F2015JF003803 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9011/issues?year=2013 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 97 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - Arctic region; boreholes; Cenozoic; drainage; glacial features; glacial geology; Greenland; Greenland ice sheet; Holocene; ice; ice sheets; imagery; lakes; MODIS; plastic flow; Quaternary; radiometers; remote sensing; sea-level changes; stratification; streams; subglacial lakes; thermal regime DO - http://dx.doi.org/10.1002/2015JF003803 ER - TY - JOUR T1 - Statistical properties of the surface velocity field in the northern Gulf of Mexico sampled by GLAD drifters AN - 1828853724; 2016-088271 AB - The Grand LAgrangian Deployment (GLAD) used multiscale sampling and GPS technology to observe time series of drifter positions with initial drifter separation of O(100 m) to O(10 km), and nominal 5 min sampling, during the summer and fall of 2012 in the northern Gulf of Mexico. Histograms of the velocity field and its statistical parameters are non-Gaussian; most are multimodal. The dominant periods for the surface velocity field are 1-2 days due to inertial oscillations, tides, and the sea breeze; 5-6 days due to wind forcing and submesoscale eddies; 9-10 days and two weeks or longer periods due to wind forcing and mesoscale variability, including the period of eddy rotation. The temporal e-folding scales of a fitted drifter velocity autocorrelation function are bimodal with time scales, 0.25-0.50 days and 0.9-1.4 days, and are the same order as the temporal e-folding scales of observed winds from nearby moored National Data Buoy Center stations. The Lagrangian integral time scales increase from coastal values of 8 h to offshore values of approximately 2 days with peak values of 3-4 days. The velocity variance is large, O(1) m (super 2) /s (super 2) , the surface velocity statistics are more anisotropic, and increased dispersion is observed at flow bifurcations. Horizontal diffusivity estimates are O(10 (super 3) ) m (super 2) /s in coastal regions with weaker flow to O(10 (super 5) ) m (super 2) /s in flow bifurcations, a strong jet, and during the passage of Hurricane Isaac. The Gulf of Mexico surface velocity statistics sampled by the GLAD drifters are a strong function of the feature sampled, topography, and wind forcing. Abstract Copyright (2016). American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Oceans AU - Mariano, A J AU - Ryan, E H AU - Huntley, H S AU - Laurindo, L C AU - Coelho, E AU - Griffa, A AU - Ozgokmen, T M AU - Berta, M AU - Bogucki, D AU - Chen, S S AU - Curcic, M AU - Drouin, K L AU - Gough, M AU - Haus, B K AU - Haza, A C AU - Hogan, P AU - Iskandarani, Mohamed AU - Jacobs, G AU - Kirwan, A D, Jr AU - Laxague, N AU - Lipphardt, B, Jr AU - Magaldi, M G AU - Novelli, G AU - Reniers, A AU - Restrepo, J M AU - Smith, C AU - Valle-Levinson, A AU - Wei, M Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 5193 EP - 5216 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 7 SN - 2169-9275, 2169-9275 KW - currents KW - ocean drifter data KW - ocean circulation KW - sea water KW - sea surface water KW - statistical analysis KW - ocean currents KW - Gulf of Mexico KW - velocity KW - North Atlantic KW - northern Gulf of Mexico KW - Atlantic Ocean KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828853724?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Oceans&rft.atitle=Statistical+properties+of+the+surface+velocity+field+in+the+northern+Gulf+of+Mexico+sampled+by+GLAD+drifters&rft.au=Mariano%2C+A+J%3BRyan%2C+E+H%3BHuntley%2C+H+S%3BLaurindo%2C+L+C%3BCoelho%2C+E%3BGriffa%2C+A%3BOzgokmen%2C+T+M%3BBerta%2C+M%3BBogucki%2C+D%3BChen%2C+S+S%3BCurcic%2C+M%3BDrouin%2C+K+L%3BGough%2C+M%3BHaus%2C+B+K%3BHaza%2C+A+C%3BHogan%2C+P%3BIskandarani%2C+Mohamed%3BJacobs%2C+G%3BKirwan%2C+A+D%2C+Jr%3BLaxague%2C+N%3BLipphardt%2C+B%2C+Jr%3BMagaldi%2C+M+G%3BNovelli%2C+G%3BReniers%2C+A%3BRestrepo%2C+J+M%3BSmith%2C+C%3BValle-Levinson%2C+A%3BWei%2C+M&rft.aulast=Mariano&rft.aufirst=A&rft.date=2016-07-01&rft.volume=121&rft.issue=7&rft.spage=5193&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Oceans&rft.issn=21699275&rft_id=info:doi/10.1002%2F2015JC011569 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 50 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - Atlantic Ocean; currents; Gulf of Mexico; North Atlantic; northern Gulf of Mexico; ocean circulation; ocean currents; ocean drifter data; sea surface water; sea water; statistical analysis; velocity DO - http://dx.doi.org/10.1002/2015JC011569 ER - TY - JOUR T1 - Assessing the impact of vertical land motion on twentieth century global mean sea level estimates AN - 1828853637; 2016-088259 AB - Near-global and continuous measurements from satellite altimetry have provided accurate estimates of global mean sea level in the past two decades. Extending these estimates further into the past is a challenge using the historical tide gauge records. Not only is sampling nonuniform in both space and time, but tide gauges are also affected by vertical land motion (VLM) that creates a relative sea level change not representative of ocean variability. To allow for comparisons to the satellite altimetry estimated global mean sea level (GMSL), typically the tide gauges are corrected using glacial isostatic adjustment (GIA) models. This approach, however, does not correct other sources of VLM that remain in the tide gauge record. Here we compare Global Positioning System (GPS) VLM estimates at the tide gauge locations to VLM estimates from GIA models, and assess the influence of non-GIA-related VLM on GMSL estimates. We find that the tide gauges, on average, are experiencing positive VLM (i.e., uplift) after removing the known effect of GIA, resulting in an increase of 0.24 + or - 0.08 mm yr (super -1) in GMSL trend estimates from 1900 to present when using GPS-based corrections. While this result is likely dependent on the subset of tide gauges used and the actual corrections used, it does suggest that non-GIA VLM plays a significant role in twentieth century estimates of GMSL. Given the relatively short GPS records used to obtain these VLM estimates, we also estimate the uncertainty in the GMSL trend that results from limited knowledge of non-GIA-related VLM. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Oceans AU - Hamlington, B D AU - Thompson, P AU - Hammond, W C AU - Blewitt, G AU - Ray, R D Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 4980 EP - 4993 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 7 SN - 2169-9275, 2169-9275 KW - vertical movements KW - tide gauge data KW - Global Positioning System KW - glacial rebound KW - Quaternary KW - isostatic compensation KW - uplifts KW - paleo-oceanography KW - altimetry KW - satellite methods KW - Holocene KW - Cenozoic KW - sea-level changes KW - isostatic rebound KW - upper Holocene KW - world ocean KW - remote sensing KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828853637?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Oceans&rft.atitle=Assessing+the+impact+of+vertical+land+motion+on+twentieth+century+global+mean+sea+level+estimates&rft.au=Hamlington%2C+B+D%3BThompson%2C+P%3BHammond%2C+W+C%3BBlewitt%2C+G%3BRay%2C+R+D&rft.aulast=Hamlington&rft.aufirst=B&rft.date=2016-07-01&rft.volume=121&rft.issue=7&rft.spage=4980&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Oceans&rft.issn=21699275&rft_id=info:doi/10.1002%2F2016JC011747 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 38 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - altimetry; Cenozoic; glacial rebound; Global Positioning System; Holocene; isostatic compensation; isostatic rebound; paleo-oceanography; Quaternary; remote sensing; satellite methods; sea-level changes; tide gauge data; uplifts; upper Holocene; vertical movements; world ocean DO - http://dx.doi.org/10.1002/2016JC011747 ER - TY - JOUR T1 - Examining features of enhanced phytoplankton biomass in the Bay of Bengal using a coupled physical-biological model AN - 1828852283; 2016-088267 AB - A coupled bio-physical ocean model is used to describe areas of enhanced phytoplankton biomass, seen in remotely sensed observations, in the otherwise oligotrophic environment of the Bay of Bengal. The model is based on the Naval Coastal Ocean Model (NCOM), which is one-way coupled to the 13-component Carbon, Silicate, and Nitrogen Ecosystem (CoSiNE) model and configured for the Indian Ocean. Model results are compared and evaluated against a set of in situ shipboard observations as well as ocean color data acquired from several remote sensing platforms. The model is shown to successfully simulate the seasonal cycle of phytoplankton, the markedly contrasting scenarios of phytoplankton distribution in the north versus the south Bay of Bengal, and the biological impact from the 1997/1998 Indian Ocean Dipole (IOD) event. The model simulation provides us with vertical cross sections of phytoplankton biomass from summer and winter blooms in the southwest of the bay, information not found in remotely sensed data. It also successfully reproduces the timing of the onset of the blooms and their spatial extent, thereby providing a measure of its potential for augmenting in situ and remotely sensed observations to improve understanding of the dynamics of primary producers and carbon cycling in one of the most poorly sampled regions of the world's oceans. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Oceans AU - do Rosario Gomes, Helga AU - deRada, Sergio AU - Goes, Joaquim I AU - Chai, Fei Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 5112 EP - 5133 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 7 SN - 2169-9275, 2169-9275 KW - sea water KW - phytoplankton KW - biomass KW - data processing KW - plankton KW - algae KW - Indian Ocean Dipole KW - Naval Coastal Ocean Model KW - Indian Ocean KW - digital simulation KW - porphyrins KW - productivity KW - Plantae KW - numerical models KW - pigments KW - NCOM KW - satellite methods KW - chlorophyll KW - nutrients KW - organic compounds KW - Bay of Bengal KW - seasonal variations KW - remote sensing KW - algal blooms KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828852283?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Oceans&rft.atitle=Examining+features+of+enhanced+phytoplankton+biomass+in+the+Bay+of+Bengal+using+a+coupled+physical-biological+model&rft.au=do+Rosario+Gomes%2C+Helga%3BdeRada%2C+Sergio%3BGoes%2C+Joaquim+I%3BChai%2C+Fei&rft.aulast=do+Rosario+Gomes&rft.aufirst=Helga&rft.date=2016-07-01&rft.volume=2015&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 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 85 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - algae; algal blooms; Bay of Bengal; biomass; chlorophyll; data processing; digital simulation; Indian Ocean; Indian Ocean Dipole; Naval Coastal Ocean Model; NCOM; numerical models; nutrients; organic compounds; phytoplankton; pigments; plankton; Plantae; porphyrins; productivity; remote sensing; satellite methods; sea water; seasonal variations DO - http://dx.doi.org/10.1002/2015JC011508 ER - TY - JOUR T1 - Constraints on iron sulfate and iron oxide mineralogy from ChemCam visible/near-infrared reflectance spectroscopy of Mt. Sharp basal units, Gale Crater, Mars AN - 1819896462; 2016-079213 AB - Relative reflectace point spectra (400-840 nm) were acquired by the Chemistry and Camera (ChemCam) instrument on the Mars Science Laboratory (MSL) rover Curiosity in passive mode (no laser) of drill tailings and broken rock fragments near the rover as it entered the lower reaches of Mt. Sharp and of landforms at distances of 2-8 km. Freshly disturbed surfaces are less subject to the spectral masking effects of dust, and revealed spectral features consistent with the presence of iron oxides and ferric sulfates. We present the first detection on Mars of a approximately 433 nm absorption band consistent with small abundances of ferric sulfates, corroborated by jarosite detections by the Chemistry and Mineralogy (CheMin) X-ray diffraction instrument in the Mojave, Telegraph Peak, and Confidence Hills drilled samples. Disturbed materials near the Bonanza King region also exhibited strong 433 nm bands and negative near-infrared spectral slopes consistent with jarosite. ChemCam passive spectra of the Confidence Hills and Mojave drill tailings showed features suggestive of the crystalline hematite identified by CheMin analyses. The Windjana drill sample tailings exhibited flat, low relative reflectance spectra, explained by the occurrence of magnetite detected by CheMin. Passive spectra of Bonanza King were similar, suggesting the presence of spectrally dark and neutral minerals such as magnetite. Long-distance spectra of the "Hematite Ridge" feature (3-5 km from the rover) exhibited features consistent with crystalline hematite. The Bagnold dune field north of the Hematite Ridge area exhibited low relative reflectance and near-infrared features indicative of basaltic materials (olivine, pyroxene). Light-toned layers south of Hematite Ridge lacked distinct spectral features in the 400-840 nm region, and may represent portions of nearby clay minerals and sulfates mapped with orbital near-infrared observations. The presence of ferric sulfates such as jarosite in the drill tailings suggests a relatively acidic environment, likely associated with flow of iron-bearing fluids, associated oxidation, and/or hydrothermal leaching of sedimentary rocks. Combined with other remote sensing data sets, mineralogical constraints from ChemCam passive spectra will continue to play an important role in interpreting the mineralogy and composition of materials encountered as Curiosity traverses further south within the basal layers of the Mt. Sharp complex. JF - American Mineralogist AU - Johnson, Jeffrey R AU - Bell, James F, III AU - Bender, Steve AU - Blaney, Diana AU - Cloutis, Edward AU - Ehlmann, Bethany L AU - Fraeman, Abigail AU - Gasnault, Olivier AU - Kinch, Kjartan AU - Le Mouelic, Stephane AU - Maurice, Sylvestre AU - Rampe, Elizabeth AU - Vaniman, David AU - Wiens, Roger C Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 1501 EP - 1514 PB - Mineralogical Society of America, Washington, DC VL - 101 IS - 7 SN - 0003-004X, 0003-004X KW - silicates KW - near-infrared spectra KW - volcanic rocks KW - iron oxides KW - igneous rocks KW - optical spectra KW - olivine group KW - Mars KW - landing sites KW - Gale Crater KW - infrared spectroscopy KW - pyroxene group KW - hematite KW - olivine KW - Curiosity Rover KW - basalts KW - orthosilicates KW - oxides KW - ChemCam KW - spectra KW - drilling KW - chain silicates KW - sulfates KW - iron sulfates KW - terrestrial planets KW - nesosilicates KW - planets KW - identification KW - Mars Science Laboratory KW - spectroscopy KW - reflectance KW - Mount Sharp KW - remote sensing KW - magnetite KW - 04:Extraterrestrial geology KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819896462?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Constraints+on+iron+sulfate+and+iron+oxide+mineralogy+from+ChemCam+visible%2Fnear-infrared+reflectance+spectroscopy+of+Mt.+Sharp+basal+units%2C+Gale+Crater%2C+Mars&rft.au=Johnson%2C+Jeffrey+R%3BBell%2C+James+F%2C+III%3BBender%2C+Steve%3BBlaney%2C+Diana%3BCloutis%2C+Edward%3BEhlmann%2C+Bethany+L%3BFraeman%2C+Abigail%3BGasnault%2C+Olivier%3BKinch%2C+Kjartan%3BLe+Mouelic%2C+Stephane%3BMaurice%2C+Sylvestre%3BRampe%2C+Elizabeth%3BVaniman%2C+David%3BWiens%2C+Roger+C&rft.aulast=Johnson&rft.aufirst=Jeffrey&rft.date=2016-07-01&rft.volume=101&rft.issue=7&rft.spage=1501&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam-2016-5553 L2 - http://www.minsocam.org/MSA/AmMin/TOC/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 89 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2016-09-16 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - basalts; chain silicates; ChemCam; Curiosity Rover; drilling; Gale Crater; hematite; identification; igneous rocks; infrared spectroscopy; iron oxides; iron sulfates; landing sites; magnetite; Mars; Mars Science Laboratory; Mount Sharp; near-infrared spectra; nesosilicates; olivine; olivine group; optical spectra; orthosilicates; oxides; planets; pyroxene group; reflectance; remote sensing; silicates; spectra; spectroscopy; sulfates; terrestrial planets; volcanic rocks DO - http://dx.doi.org/10.2138/am-2016-5553 ER - TY - JOUR T1 - Gas/solid carbon branching ratios in surface-mediated reactions and the incorporation of carbonaceous material into planetesimals AN - 1819895654; 2016-079115 AB - We report the ratio of the initial carbon available as CO that forms gas-phase compounds compared to the fraction that deposits as a carbonaceous solid (the gas/solid branching ratio) as a function of time and temperature for iron, magnetite, and amorphous iron silicate smoke catalysts during surface-mediated reactions in an excess of hydrogen and in the presence of N (sub 2) . This fraction varies from more than 99% for an amorphous iron silicate smoke at 673 K to less than 40% for a magnetite catalyst at 873 K. The CO not converted into solids primarily forms methane, ethane, water, and CO (sub 2) , as well as a very wide range of organic molecules at very low concentration. Carbon deposits do not form continuous coatings on the catalytic surfaces, but instead form extremely high surface area per unit volume "filamentous" structures. While these structures will likely form more slowly but over much longer times in protostellar nebulae than in our experiments due to the much lower partial pressure of CO, such fluffy coatings on the surfaces of chondrules or calcium aluminum inclusions could promote grain-grain sticking during low-velocity collisions. Abstract Copyright Published 2016. This article is a U.S. Government work and is in the public domain in the USA. JF - Meteoritics & Planetary Science AU - Nuth, Joseph A AU - Johnson, Natasha M AU - Ferguson, Frank T AU - Carayon, Alicia Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 1310 EP - 1322 PB - Meteoritical Society, Fayetteville, AR VL - 51 IS - 7 SN - 1086-9379, 1086-9379 KW - silicates KW - iron silicates KW - calcium-aluminum inclusions KW - aliphatic hydrocarbons KW - ethane KW - planetesimals KW - iron KW - temperature KW - nitrogen KW - carbon dioxide KW - laboratory studies KW - catalysis KW - inclusions KW - oxides KW - interstellar dust KW - mineral surface KW - water KW - carbonaceous composition KW - experimental studies KW - methane KW - gaseous phase KW - amorphous materials KW - cosmochemistry KW - alkanes KW - gases KW - solar nebula KW - carbon monoxide KW - organic compounds KW - cosmic dust KW - partial pressure KW - metals KW - hydrogen KW - hydrocarbons KW - magnetite KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819895654?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Gas%2Fsolid+carbon+branching+ratios+in+surface-mediated+reactions+and+the+incorporation+of+carbonaceous+material+into+planetesimals&rft.au=Nuth%2C+Joseph+A%3BJohnson%2C+Natasha+M%3BFerguson%2C+Frank+T%3BCarayon%2C+Alicia&rft.aulast=Nuth&rft.aufirst=Joseph&rft.date=2016-07-01&rft.volume=51&rft.issue=7&rft.spage=1310&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12666 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 33 N1 - PubXState - AR N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2016-09-16 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; amorphous materials; calcium-aluminum inclusions; carbon dioxide; carbon monoxide; carbonaceous composition; catalysis; cosmic dust; cosmochemistry; ethane; experimental studies; gaseous phase; gases; hydrocarbons; hydrogen; inclusions; interstellar dust; iron; iron silicates; laboratory studies; magnetite; metals; methane; mineral surface; nitrogen; organic compounds; oxides; partial pressure; planetesimals; silicates; solar nebula; temperature; water DO - http://dx.doi.org/10.1111/maps.12666 ER - TY - JOUR T1 - Interstratification of graphene-like carbon layers within black talc from southeastern China; implications to sedimentary talc formation AN - 1819893884; 2016-079227 AB - Large deposits of unusual black talc interstratified with dolostone layers of the late Neoproterozoic Dengying Formation were discovered in Guangfeng County, Jiangxi Province, southeastern China. The black talc ore exhibits primarily oolitic structures and consists mainly of talc (30-70 wt%), dolomite, and quartz, with trace amounts of pyrite and apatite. The ooids are composed of nearly pure black talc crystals, most of which consist of ultrafine nano-plates. The black talc contains small amounts of carbon, which causes the black coloring. Raman spectra and X-ray photoelectron spectroscopy (XPS) results indicate structural disorder and chemical impurities within bonds (e.g., sp (super 3) hybridized carbon and C-O bonds) in the carbonaceous material, instead of perfectly structured graphite or graphene. Isolated graphene-like carbon interlayers are present in the talc nano-crystals, as shown by Z-contrast transmission electron microscope (TEM) imaging. Based on previous studies on Mg-silicate precipitation from surface water, we propose a sedimentary formation mechanism for the black talc, in which tetrahedral-octahedral-tetrahedral (T-O-T) layers of Mg-silicates, 1 approximately 2 unit-cells thick, co-precipitated with abundant organic matter derived from microorganisms thriving in locally Al-depleted sea water with high concentrations of Mg (super 2+) and SiO (sub 2) (aq), in a shallow marine or lagoonal environment. The involvement of organic matter may have facilitated the precipitation of Mg-silicate. Further diagenesis and re-crystalliztion of the biomass-coated precursor resulted in the formation of graphene-like layers between neighboring talc nano-crystals with same orientation. JF - American Mineralogist AU - Li, Chengxiang AU - Wang, Rucheng AU - Xu, Huifang AU - Lu, Xiancai AU - Konishi, Hiromi AU - He, Kun Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 1668 EP - 1678 PB - Mineralogical Society of America, Washington, DC VL - 101 IS - 7 SN - 0003-004X, 0003-004X KW - silicates KW - Far East KW - upper Precambrian KW - X-ray diffraction data KW - silica minerals KW - Guangfeng China KW - dolostone KW - dolomite KW - sedimentary rocks KW - mineral composition KW - Jiangxi China KW - graphene KW - fullerene KW - carbon KW - talc KW - framework silicates KW - spectra KW - Sinian KW - Asia KW - China KW - Neoproterozoic KW - apatite KW - Precambrian KW - diffractograms KW - black talc KW - Proterozoic KW - electron microscopy data KW - phosphates KW - native elements KW - X-ray spectra KW - TEM data KW - talc deposits KW - Raman spectra KW - marine environment KW - diagenesis KW - Dengying Formation KW - quartz KW - lagoonal environment KW - sheet silicates KW - pyrite KW - carbonate rocks KW - sulfides KW - carbonates KW - SEM data KW - microorganisms KW - 06A:Sedimentary petrology KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819893884?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Interstratification+of+graphene-like+carbon+layers+within+black+talc+from+southeastern+China%3B+implications+to+sedimentary+talc+formation&rft.au=Li%2C+Chengxiang%3BWang%2C+Rucheng%3BXu%2C+Huifang%3BLu%2C+Xiancai%3BKonishi%2C+Hiromi%3BHe%2C+Kun&rft.aulast=Li&rft.aufirst=Chengxiang&rft.date=2016-07-01&rft.volume=101&rft.issue=7&rft.spage=1668&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam-2016-5600 L2 - http://www.minsocam.org/MSA/AmMin/TOC/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 82 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-09-16 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - apatite; Asia; black talc; carbon; carbonate rocks; carbonates; China; Dengying Formation; diagenesis; diffractograms; dolomite; dolostone; electron microscopy data; Far East; framework silicates; fullerene; graphene; Guangfeng China; Jiangxi China; lagoonal environment; marine environment; microorganisms; mineral composition; native elements; Neoproterozoic; phosphates; Precambrian; Proterozoic; pyrite; quartz; Raman spectra; sedimentary rocks; SEM data; sheet silicates; silica minerals; silicates; Sinian; spectra; sulfides; talc; talc deposits; TEM data; upper Precambrian; X-ray diffraction data; X-ray spectra DO - http://dx.doi.org/10.2138/am-2016-5600 ER - TY - JOUR T1 - Esperance; multiple episodes of aqueous alteration involving fracture fills and coatings at Matijevic Hill, Mars AN - 1819893869; 2016-079214 AB - In the search for evidence of past aqueous activity by the Mars Exploration Rover Opportunity, fracture-filling veins and rock coatings are prime candidates for exploration. At one location within a segment of remaining rim material surrounding Endeavour Crater, a set of "boxwork" fractures in an outcrop called Esperance are filled by a bright, hydrated, and highly siliceous (SiO (sub 2) approximately 66 wt%) material, which has overall a montmorillonite-like chemical composition. This material is partially covered by patches of a thin, dark coating that is sulfate-rich (SO (sub 3) approximately 21 wt%) but also contains significant levels of Si, Fe, Ca, and Mg. The simultaneous presence of abundant S, Si, and Fe indicates significant mineralogical complexity within the coating. This combination of vein and coating compositions is unlike previous analyses on Mars. Both materials are heterogeneously eroded, presumably by eolian abrasion. The evidence indicates at least two separate episodes of solute precipitation from aqueous fluids at this location, possibly widely separated in time. In addition to the implications for multiple episodes of alteration at the surface of the planet, aqueous chemical environments such as these would have been habitable at the time of their formation and are also favorable for preservation of organic material. JF - American Mineralogist AU - Clark, Benton C AU - Morris, Richard V AU - Herkenhoff, Kenneth E AU - Farrand, William H AU - Gellert, Ralf AU - Jolliff, Bradley L AU - Arvidson, Raymond E AU - Squyres, Steven W AU - Mittlefehldt, David W AU - Ming, Douglas W AU - Yen, Albert S Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 1515 EP - 1526 PB - Mineralogical Society of America, Washington, DC VL - 101 IS - 7 SN - 0003-004X, 0003-004X KW - silicates KW - alteration KW - Mars KW - Mars Exploration Rover KW - fractures KW - Esperance outcrop KW - chemical composition KW - montmorillonite KW - sulfates KW - Opportunity Rover KW - surface water KW - solutes KW - smectite KW - veins KW - clay minerals KW - terrestrial planets KW - planets KW - organic compounds KW - habitability KW - precipitation KW - sheet silicates KW - aquatic environment KW - Matijevic Hill KW - Endeavour Crater KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819893869?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Esperance%3B+multiple+episodes+of+aqueous+alteration+involving+fracture+fills+and+coatings+at+Matijevic+Hill%2C+Mars&rft.au=Clark%2C+Benton+C%3BMorris%2C+Richard+V%3BHerkenhoff%2C+Kenneth+E%3BFarrand%2C+William+H%3BGellert%2C+Ralf%3BJolliff%2C+Bradley+L%3BArvidson%2C+Raymond+E%3BSquyres%2C+Steven+W%3BMittlefehldt%2C+David+W%3BMing%2C+Douglas+W%3BYen%2C+Albert+S&rft.aulast=Clark&rft.aufirst=Benton&rft.date=2016-07-01&rft.volume=101&rft.issue=7&rft.spage=1515&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam-2016-5575 L2 - http://www.minsocam.org/MSA/AmMin/TOC/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 53 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2016-09-16 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - alteration; aquatic environment; chemical composition; clay minerals; Endeavour Crater; Esperance outcrop; fractures; habitability; Mars; Mars Exploration Rover; Matijevic Hill; montmorillonite; Opportunity Rover; organic compounds; planets; precipitation; sheet silicates; silicates; smectite; solutes; sulfates; surface water; terrestrial planets; veins DO - http://dx.doi.org/10.2138/am-2016-5575 ER - TY - JOUR T1 - Airborne observations of bioaerosol over the Southeast United States using a Wideband Integrated Bioaerosol Sensor AN - 1815702156; PQ0003593039 AB - Biological aerosols represent a diverse subset of particulate matter that is emitted directly to the atmosphere in the form of (but not limited to) bacteria, fungal spores, pollens, viruses, and plant debris. These particles can have local air quality implications, but potentially play a larger climate role by acting as efficient ice nucleating particles (INPs) and cloud condensation nuclei. We have deployed a Wideband Integrated Bioaerosol Sensor on the NASA DC-8 aircraft to (1) quantify boundary layer (BL) variability of fluorescent biological aerosol particle (FBAP) concentrations in the Southeast United States (SEUS), (2) link this variability explicitly to land cover heterogeneity in the region, and (3) examine the vertical profile of bioaerosols in the context of convective vertical redistribution. Flight-averaged FBAP concentrations ranged between 0.1 and 0.43scm super(-3) (cm super(-3) at standard temperature and pressure) with relatively homogeneous concentrations throughout the region; croplands showed the highest concentrations in the BL (0.37scm super(-3)), and lowest concentrations were associated with evergreen forests (0.24scm super(-3)). Observed FBAP concentrations are in generally good agreement with model parameterized emission rates for bacteria, and discrepancies are likely the result of fungal spore contributions. Shallow convection in the region is shown to be a relatively efficient lofting mechanism as the vertical transport efficiency of FBAP is at least equal to black carbon aerosol, suggesting that ground-level FBAP survives transport into the free troposphere to be available for INP activation. Comparison of the fraction of coarse-mode particles that were biological (f sub(FBAP)) suggested that the SEUS (f sub(FBAP)=8.5%) was a much stronger source of bioaerosols than long-range transport during a Saharan Air Layer (SAL) dust event (f sub(FBAP)=0.17%) or summertime marine emissions in the Gulf of Mexico (f sub(FBAP)=0.73%). Key Points * The southeast USA region is a significant source of bioaerosols * Shallow convection allows vertical transport of bioaerosols * Emission rates from different land types are relatively homogeneous JF - Journal of Geophysical Research: Atmospheres AU - Ziemba, Luke D AU - Beyersdorf, Andreas J AU - Chen, Gao AU - Corr, Chelsea A AU - Crumeyrolle, Suzanne N AU - Diskin, Glenn AU - Hudgins, Charlie AU - Martin, Robert AU - Mikoviny, Tomas AU - Moore, Richard AU - Shook, Michael AU - Thornhill, KLee AU - Winstead, Edward L AU - Wisthaler, Armin AU - Anderson, Bruce E AD - NASA Langley Research Center, Hampton, Virginia, USA. Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 8506 EP - 8524 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 121 IS - 14 SN - 2169-897X, 2169-897X KW - Virology & AIDS Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Convection KW - Atmospheric pollution models KW - Sensors KW - Particulate matter KW - Forests KW - Plant debris KW - black carbon KW - Nuclei KW - Ice KW - Aerosols KW - Atmospheric pollution KW - Cloud condensation nuclei KW - Fungi in air KW - Clouds KW - Long-range transport KW - Boundary layers KW - Condensation KW - Variability KW - Bioaerosols KW - Aerosol particles KW - Convection development KW - Black carbon aerosols KW - Air quality KW - USA, Southeast KW - Dust KW - Models KW - Carbon KW - Aircraft KW - Pressure KW - Heterogeneity KW - Temperature effects KW - Bacteria KW - Airborne sensing KW - Climate KW - Troposphere KW - Dusts KW - Vertical advection KW - Pollen KW - ASW, Mexico Gulf KW - USA KW - Convective activity KW - Africa, Sahara Desert KW - Spores KW - Q2 09243:Structure, mechanics and thermodynamics KW - V 22490:Miscellaneous KW - M2 551.510.42:Air Pollution (551.510.42) KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815702156?accountid=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+Geophysical+Research%3A+Atmospheres&rft.atitle=Airborne+observations+of+bioaerosol+over+the+Southeast+United+States+using+a+Wideband+Integrated+Bioaerosol+Sensor&rft.au=Ziemba%2C+Luke+D%3BBeyersdorf%2C+Andreas+J%3BChen%2C+Gao%3BCorr%2C+Chelsea+A%3BCrumeyrolle%2C+Suzanne+N%3BDiskin%2C+Glenn%3BHudgins%2C+Charlie%3BMartin%2C+Robert%3BMikoviny%2C+Tomas%3BMoore%2C+Richard%3BShook%2C+Michael%3BThornhill%2C+KLee%3BWinstead%2C+Edward+L%3BWisthaler%2C+Armin%3BAnderson%2C+Bruce+E&rft.aulast=Ziemba&rft.aufirst=Luke&rft.date=2016-07-01&rft.volume=121&rft.issue=14&rft.spage=8506&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2015JD024669 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Clouds; Convection; Airborne sensing; Aerosols; Carbon; Sensors; Spores; Pollen; Vertical advection; Temperature effects; Ice; Climate; Particulate matter; Forests; Troposphere; Plant debris; Dust; Models; black carbon; Aircraft; Boundary layers; Condensation; Nuclei; Pressure; Long-range transport; Atmospheric pollution models; Atmospheric pollution; Bioaerosols; Aerosol particles; Convective activity; Air quality; Black carbon aerosols; Convection development; Cloud condensation nuclei; Fungi in air; Bacteria; Variability; Dusts; Heterogeneity; ASW, Mexico Gulf; USA; Africa, Sahara Desert; USA, Southeast DO - http://dx.doi.org/10.1002/2015JD024669 ER - TY - JOUR T1 - Large wind ripples on Mars; a record of atmospheric evolution AN - 1815673362; 2016-074696 AB - Wind blowing over sand on Earth produces decimeter-wavelength ripples and hundred-meter--to kilometer-wavelength dunes: bedforms of two distinct size modes. Observations from the Mars Science Laboratory Curiosity rover and the Mars Reconnaissance Orbiter reveal that Mars hosts a third stable wind-driven bedform, with meter-scale wavelengths. These bedforms are spatially uniform in size and typically have asymmetric profiles with angle-of-repose lee slopes and sinuous crest lines, making them unlike terrestrial wind ripples. Rather, these structures resemble fluid-drag ripples, which on Earth include water-worked current ripples, but on Mars instead form by wind because of the higher kinematic viscosity of the low-density atmosphere. A reevaluation of the wind-deposited strata in the Burns formation (about 3.7 billion years old or younger) identifies potential wind-drag ripple stratification formed under a thin atmosphere. JF - Science AU - Lapotre, M G A AU - Ewing, R C AU - Lamb, M P AU - Fischer, W W AU - Grotzinger, J P AU - Rubin, D M AU - Lewis, K W AU - Ballard, M J AU - Day, M AU - Gupta, S AU - Banham, S G AU - Bridges, N T AU - Des Marais, D J AU - Fraeman, A A AU - Grant, J A AU - Herkenhoff, K E AU - Ming, D W AU - Mischna, M A AU - Rice, M S AU - Sumner, D A AU - Vasavada, A R AU - Yingst, R A Y1 - 2016/07/01/ PY - 2016 DA - 2016 Jul 01 SP - 55 EP - 58 PB - American Association for the Advancement of Science, Washington, DC VL - 353 IS - 6294 SN - 0036-8075, 0036-8075 KW - eolian features KW - sediment transport KW - paleoatmosphere KW - landform evolution KW - atmosphere KW - Mars KW - ripple marks KW - bedforms KW - terrestrial planets KW - planets KW - bedding plane irregularities KW - transport KW - Curiosity Rover KW - Mars Science Laboratory KW - wind transport KW - sedimentary structures KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815673362?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Large+wind+ripples+on+Mars%3B+a+record+of+atmospheric+evolution&rft.au=Lapotre%2C+M+G+A%3BEwing%2C+R+C%3BLamb%2C+M+P%3BFischer%2C+W+W%3BGrotzinger%2C+J+P%3BRubin%2C+D+M%3BLewis%2C+K+W%3BBallard%2C+M+J%3BDay%2C+M%3BGupta%2C+S%3BBanham%2C+S+G%3BBridges%2C+N+T%3BDes+Marais%2C+D+J%3BFraeman%2C+A+A%3BGrant%2C+J+A%3BHerkenhoff%2C+K+E%3BMing%2C+D+W%3BMischna%2C+M+A%3BRice%2C+M+S%3BSumner%2C+D+A%3BVasavada%2C+A+R%3BYingst%2C+R+A&rft.aulast=Lapotre&rft.aufirst=M+G&rft.date=2016-07-01&rft.volume=353&rft.issue=6294&rft.spage=55&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.aaf3206 L2 - http://www.sciencemag.org/magazine LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 39 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2016-09-01 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - atmosphere; bedding plane irregularities; bedforms; Curiosity Rover; eolian features; landform evolution; Mars; Mars Science Laboratory; paleoatmosphere; planets; ripple marks; sediment transport; sedimentary structures; terrestrial planets; transport; wind transport DO - http://dx.doi.org/10.1126/science.aaf3206 ER - TY - JOUR T1 - Multi-wheat-model ensemble responses to interannual climate variability AN - 1808699116; PQ0003238829 AB - We compare 27 wheat models' yield responses to interannual climate variability, analyzed at locations in Argentina, Australia, India, and The Netherlands as part of the Agricultural Model Intercomparison and Improvement Project (AgMIP) Wheat Pilot. Each model simulated 1981-2010 grain yield, and we evaluate results against the interannual variability of growing season temperature, precipitation, and solar radiation. The amount of information used for calibration has only a minor effect on most models' climate response, and even small multi-model ensembles prove beneficial. Wheat model clusters reveal common characteristics of yield response to climate; however models rarely share the same cluster at all four sites indicating substantial independence. Only a weak relationship (R2 less than or equal to 0.24) was found between the models' sensitivities to interannual temperature variability and their response to long-term warming, suggesting that additional processes differentiate climate change impacts from observed climate variability analogs and motivating continuing analysis and model development efforts. JF - Environmental Modelling & Software AU - Ruane, Alex C AU - Hudson, Nicholas I AU - Asseng, Senthold AU - Camarrano, Davide AU - Ewert, Frank AU - Martre, Pierre AU - Boote, Kenneth J AU - Thorburn, Peter J AU - Aggarwal, Pramod K AU - Angulo, Carlos AU - Basso, Bruno AU - Bertuzzi, Patrick AU - Biernath, Christian AU - Brisson, Nadine AU - Challinor, Andrew J AU - Doltra, Jordi AU - Gayler, Sebastian AU - Goldberg, Richard AU - Grant, Robert F AU - Heng, Lee AU - Hooker, Josh AU - Hunt, Leslie A AU - Ingwersen, Joachim AU - Izaurralde, Roberto C AU - Kersebaum, Kurt Christian AU - Kumar, Soora Naresh AU - Mueller, Christoph AU - Nendel, Claas AU - O'Leary, Garry AU - Olesen, Joergen E AU - Osborne, Tom M AU - Palosuo, Taru AU - Priesack, Eckart AU - Ripoche, Dominique AU - Rotter, Reimund P AU - Semenov, Mikhail A AU - Shcherbak, Iurii AU - Steduto, Pasquale AU - Stockle, Claudio O AU - Stratonovitch, Pierre AU - Streck, Thilo AU - Supit, Iwan AU - Tao, Fulu AU - Travasso, Maria AU - Waha, Katharina AU - Wallach, Daniel AU - White, Jeffrey W AU - Wolf, Joost AD - National Aeronautics and Space Administration, Goddard Institute for Space Studies, New York, NY, USA Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 86 EP - 101 PB - Elsevier B.V., P.O. Box 800 Kidlington Oxford OX5 1DX United Kingdom VL - 81 SN - 1364-8152, 1364-8152 KW - Environment Abstracts; Water Resources Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Crop modeling KW - Uncertainty KW - Multi-model ensemble KW - Wheat KW - AgMIP KW - Climate impacts KW - Temperature KW - Precipitation KW - Interannual variability KW - Variability KW - Rainfall KW - Climate change KW - Analogs KW - Solar radiation KW - India KW - Crop Yield KW - Triticum aestivum KW - Computer programs KW - Calibrations KW - Climatic Changes KW - Australia KW - Netherlands KW - Grains KW - Seasonal variations KW - Modelling KW - Temperature effects KW - Atmospheric precipitations KW - Sensitivity KW - Climates KW - Model Studies KW - Argentina KW - AQ 00001:Water Resources and Supplies KW - ENA 06:Food & Drugs KW - SW 0810:General KW - Q5 08502:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808699116?accountid=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=Environmental+Modelling+%26+Software&rft.atitle=Multi-wheat-model+ensemble+responses+to+interannual+climate+variability&rft.au=Ruane%2C+Alex+C%3BHudson%2C+Nicholas+I%3BAsseng%2C+Senthold%3BCamarrano%2C+Davide%3BEwert%2C+Frank%3BMartre%2C+Pierre%3BBoote%2C+Kenneth+J%3BThorburn%2C+Peter+J%3BAggarwal%2C+Pramod+K%3BAngulo%2C+Carlos%3BBasso%2C+Bruno%3BBertuzzi%2C+Patrick%3BBiernath%2C+Christian%3BBrisson%2C+Nadine%3BChallinor%2C+Andrew+J%3BDoltra%2C+Jordi%3BGayler%2C+Sebastian%3BGoldberg%2C+Richard%3BGrant%2C+Robert+F%3BHeng%2C+Lee%3BHooker%2C+Josh%3BHunt%2C+Leslie+A%3BIngwersen%2C+Joachim%3BIzaurralde%2C+Roberto+C%3BKersebaum%2C+Kurt+Christian%3BKumar%2C+Soora+Naresh%3BMueller%2C+Christoph%3BNendel%2C+Claas%3BO%27Leary%2C+Garry%3BOlesen%2C+Joergen+E%3BOsborne%2C+Tom+M%3BPalosuo%2C+Taru%3BPriesack%2C+Eckart%3BRipoche%2C+Dominique%3BRotter%2C+Reimund+P%3BSemenov%2C+Mikhail+A%3BShcherbak%2C+Iurii%3BSteduto%2C+Pasquale%3BStockle%2C+Claudio+O%3BStratonovitch%2C+Pierre%3BStreck%2C+Thilo%3BSupit%2C+Iwan%3BTao%2C+Fulu%3BTravasso%2C+Maria%3BWaha%2C+Katharina%3BWallach%2C+Daniel%3BWhite%2C+Jeffrey+W%3BWolf%2C+Joost&rft.aulast=Ruane&rft.aufirst=Alex&rft.date=2016-07-01&rft.volume=81&rft.issue=&rft.spage=86&rft.isbn=&rft.btitle=&rft.title=Environmental+Modelling+%26+Software&rft.issn=13648152&rft_id=info:doi/10.1016%2Fj.envsoft.2016.03.008 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Atmospheric precipitations; Temperature effects; Analogs; Climate change; Solar radiation; Seasonal variations; Modelling; Computer programs; Sensitivity; Rainfall; Temperature; Grains; Wheat; Variability; Calibrations; Climates; Climatic Changes; Precipitation; Crop Yield; Model Studies; Triticum aestivum; Argentina; Australia; Netherlands; India DO - http://dx.doi.org/10.1016/j.envsoft.2016.03.008 ER - TY - JOUR T1 - Cassini's Grand Finale AN - 1808667301; PQ0003363423 JF - Nature Geoscience AU - Edgington, Scott G AU - Spilker, Linda J AD - Deputy Project Scientist and Project Scientist for the Cassini mission at the NASA Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, California 91109, USA Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 472 EP - 473 PB - Nature Publishing Group, The Macmillan Building London N1 9XW United Kingdom VL - 9 IS - 7 SN - 1752-0894, 1752-0894 KW - Ecology Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Geology KW - Q2 09262:Methods and instruments KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808667301?accountid=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=Nature+Geoscience&rft.atitle=Cassini%27s+Grand+Finale&rft.au=Edgington%2C+Scott+G%3BSpilker%2C+Linda+J&rft.aulast=Edgington&rft.aufirst=Scott&rft.date=2016-07-01&rft.volume=9&rft.issue=7&rft.spage=472&rft.isbn=&rft.btitle=&rft.title=Nature+Geoscience&rft.issn=17520894&rft_id=info:doi/10.1038%2Fngeo2753 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Geology DO - http://dx.doi.org/10.1038/ngeo2753 ER - TY - JOUR T1 - Climate change decouples drought from early wine grape harvests in France AN - 1808640726; PQ0003336031 AB - Across the world, wine grape phenology has advanced in recent decades, in step with climate-change-induced trends in temperature-the main driver of fruit maturation-and drought. Fully understanding how climate change contributes to changes in harvest dates, however, requires analysing wine grape phenology and its relationship to climate over a longer-term context, including data predating anthropogenic interference in the climate system. Here, we investigate the climatic controls of wine grape harvest dates from 1600-2007 in France and Switzerland using historical harvest and climate data. Early harvests occur with warmer temperatures (-6days degree C super(-1)) and are delayed by wet conditions (+0.07daysmm super(-1); +1.68days PDSI super(-1)) during spring and summer. In recent decades (1981-2007), however, the relationship between harvest timing and drought has broken down. Historically, high summer temperatures in Western Europe, which would hasten fruit maturation, required drought conditions to generate extreme heat. The relationship between drought and temperature in this region, however, has weakened in recent decades and enhanced warming from anthropogenic greenhouse gases can generate the high temperatures needed for early harvests without drought. Our results suggest that climate change has fundamentally altered the climatic drivers of early wine grape harvests in France, with possible ramifications for viticulture management and wine quality. JF - Nature Climate Change AU - Cook, Benjamin I AU - Wolkovich, Elizabeth M AD - NASA Goddard Institute for Space Studies, New York City, New York 10025, USA; Division of Ocean and Climate Physics, Lamont-Doherty Earth Observatory, Palisades, New York 10964, USA Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 715 EP - 719 PB - Nature Publishing Group, The Macmillan Building London N1 9XW United Kingdom VL - 6 IS - 7 SN - 1758-678X, 1758-678X KW - ASFA 3: Aquatic Pollution & Environmental Quality; Environment Abstracts; Meteorological & Geoastrophysical Abstracts KW - Fruits KW - Historical account KW - Drought conditions KW - Climate change KW - Anthropogenic factors KW - Summer KW - Drought KW - Switzerland KW - High temperatures KW - ANE, France KW - Phenology KW - Interspecific relationships KW - High temperature KW - Droughts KW - Temperature effects KW - Temperature KW - Viticulture KW - Climatic trends KW - Greenhouse effect KW - Summer temperatures KW - Sexual maturity KW - Vitaceae KW - Greenhouse gases KW - M2 551.583:Variations (551.583) KW - Q5 08502:Methods and instruments KW - ENA 20:Weather Modification & Geophysical Change UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808640726?accountid=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=Nature+Climate+Change&rft.atitle=Climate+change+decouples+drought+from+early+wine+grape+harvests+in+France&rft.au=Cook%2C+Benjamin+I%3BWolkovich%2C+Elizabeth+M&rft.aulast=Cook&rft.aufirst=Benjamin&rft.date=2016-07-01&rft.volume=6&rft.issue=7&rft.spage=715&rft.isbn=&rft.btitle=&rft.title=Nature+Climate+Change&rft.issn=1758678X&rft_id=info:doi/10.1038%2Fnclimate2960 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Temperature effects; Interspecific relationships; Phenology; Sexual maturity; Climate change; Anthropogenic factors; Greenhouse effect; Droughts; High temperatures; Drought conditions; Climatic trends; Summer temperatures; Drought; Greenhouse gases; Historical account; Fruits; High temperature; Temperature; Viticulture; Summer; Vitaceae; ANE, France; Switzerland DO - http://dx.doi.org/10.1038/nclimate2960 ER - TY - JOUR T1 - Targeted reforestation could reverse declines in connectivity for understory birds in a tropical habitat corridor AN - 1808630942; PQ0003462199 AB - Re-establishing connectivity between protected areas isolated by habitat clearing is a key conservation goal in the humid tropics. In northeastern Costa Rica, payments for environmental services (PES) and a government ban on deforestation have subsidized forest protection and reforestation in the San Juan-La Selva Biological Corridor (SJLSBC), resulting in a decline in mature forest loss and the expansion of tree plantations. We use field studies and graph models to assess how conservation efforts have altered functional connectivity over the last 25 years for four species of insectivorous understory birds. Field playback studies assessed how reforestation habitat quality affected the willingness of Myrmeciza exsul, Henicorhina leucosticta, Thamnophilus atrinucha, and Glyphorynchus spirurus to travel outside forest habitat for territorial defense. Observed travel distances were greatest in nonnative and native tree plantations with high understory stem density, regardless of overstory composition. In contrast, tree plantations with low stem density had travel responses comparable to open pasture for three of the four bird species. We modeled landscape connectivity for each species using graph models based on varying possible travel distances in tree plantations, gallery forests, and pastures. From 1986 to 2011, connectivity for all species declined in the SJLSBC landscape (5825 km super(2)) by 14% to 21% despite only a 4.9% net loss in forest area and the rapid expansion of tree plantations over 2% of the landscape. Plantation placement in the landscape limited their potential facilitation of connectivity because they were located either far from forest cover or within already contiguous forest areas. We mapped current connectivity bottlenecks and identified priority areas for future reforestation. We estimate that reforestation of priority areas could improve connectivity by 2% with only a 1% gain in forest cover, an impressive gain given the small area reforested. Results indicate key locations where spatial targeting of PES within the SJLSBC study region would protect existing forest connectivity and enhance the connectivity benefits of reforestation. JF - Ecological Applications AU - Fagan, Matthew E AU - Defries, Ruth S AU - Sesnie, Steven E AU - Arroyo-Mora, J Pablo AU - Chazdon, Robin L AD - Biospheric Sciences, Goddard Space Flight Center, NASA, Greenbelt, Maryland 20771, USA, mfagan@umbc.edu Y1 - 2016/07// PY - 2016 DA - July 2016 SP - 1456 EP - 1474 PB - Ecological Society of America, 1707 H Street, N.W., Suite 400 Washington DC 20006 United States VL - 26 IS - 5 SN - 1051-0761, 1051-0761 KW - Environment Abstracts; Ecology Abstracts KW - Costa Rica KW - fragmentation KW - functional connectivity KW - Glyphorynchus spirurus KW - Henicorhina leucosticta KW - Myrmeciza exsul KW - payments for environmental services KW - reforestation KW - Thamnophilus atrinucha KW - tropical conservation KW - understory insectivores KW - Travel KW - Galleries KW - Trees KW - Playback KW - Forests KW - Pasture KW - Reforestation KW - Forest protection KW - Habitat corridors KW - Understory KW - Landscape KW - Habitat KW - Plantations KW - ASW, Costa Rica KW - Tropical environments KW - Priorities KW - Conservation KW - Deforestation KW - D 04040:Ecosystem and Ecology Studies KW - ENA 15:Renewable Resources-Terrestrial UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808630942?accountid=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+Applications&rft.atitle=Targeted+reforestation+could+reverse+declines+in+connectivity+for+understory+birds+in+a+tropical+habitat+corridor&rft.au=Fagan%2C+Matthew+E%3BDefries%2C+Ruth+S%3BSesnie%2C+Steven+E%3BArroyo-Mora%2C+J+Pablo%3BChazdon%2C+Robin+L&rft.aulast=Fagan&rft.aufirst=Matthew&rft.date=2016-07-01&rft.volume=26&rft.issue=5&rft.spage=1456&rft.isbn=&rft.btitle=&rft.title=Ecological+Applications&rft.issn=10510761&rft_id=info:doi/10.1890%2F14-2188 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-09-29 N1 - SubjectsTermNotLitGenreText - Galleries; Trees; Landscape; Playback; Forests; Habitat; Plantations; Pasture; Reforestation; Conservation; Habitat corridors; Understory; Deforestation; Travel; Tropical environments; Priorities; Forest protection; ASW, Costa Rica DO - http://dx.doi.org/10.1890/14-2188 ER - TY - JOUR T1 - The Influence of Differentially Expressed Tissue-Type Plasminogen Activator in Experimental Autoimmune Encephalomyelitis: Implications for Multiple Sclerosis AN - 1805472171 AB - Tissue type plasminogen activator (t-PA) has been implicated in the development of multiple sclerosis (MS) and in rodent models of experimental autoimmune encephalomyelitis (EAE). We show that levels of t-PA mRNA and activity are increased ~4 fold in the spinal cords of wild-type mice that are mice subjected to EAE. This was also accompanied with a significant increase in the levels of pro-matrix metalloproteinase 9 (pro-MMP-9) and an influx of fibrinogen. We next compared EAE severity in wild-type mice, t-PA-/- mice and T4+ transgenic mice that selectively over-express (~14-fold) mouse t-PA in neurons of the central nervous system. Our results confirm that t-PA deficient mice have an earlier onset and more severe form of EAE. T4+ mice, despite expressing higher levels of endogenous t-PA, manifested a similar rate of onset and neurological severity of EAE. Levels of proMMP-9, and extravasated fibrinogen in spinal cord extracts were increased in mice following EAE onset regardless of the absence or over-expression of t-PA wild-type. Interestingly, MMP-2 levels also increased in spinal cord extracts of T4+ mice following EAE, but not in the other genotypes. Hence, while the absence of t-PA confers a more deleterious form of EAE, neuronal over-expression of t-PA does not overtly protect against this condition with regards to symptom onset or severity of EAE. JF - PLoS One AU - Dahl, Lisa CM AU - Nasa, Zeyad AU - Chung, JieYu AU - Niego, Be'eri AU - Tarlac, Volga AU - Ho, Heidi AU - Galle, Adam AU - Petratos, Steven AU - Lee, Jae Young AU - Alderuccio, Frank AU - Medcalf, Robert L Y1 - 2016/07// PY - 2016 DA - Jul 2016 CY - San Francisco PB - Public Library of Science VL - 11 IS - 7 KW - Sciences: Comprehensive Works KW - Studies KW - Rodents KW - Spinal cord KW - Experiments KW - Pathogenesis KW - Medical research KW - Permeability KW - Brain research KW - Cell adhesion & migration KW - Multiple sclerosis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1805472171?accountid=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=PLoS+One&rft.atitle=The+Influence+of+Differentially+Expressed+Tissue-Type+Plasminogen+Activator+in+Experimental+Autoimmune+Encephalomyelitis%3A+Implications+for+Multiple+Sclerosis&rft.au=Dahl%2C+Lisa+CM%3BNasa%2C+Zeyad%3BChung%2C+JieYu%3BNiego%2C+Be%27eri%3BTarlac%2C+Volga%3BHo%2C+Heidi%3BGalle%2C+Adam%3BPetratos%2C+Steven%3BLee%2C+Jae+Young%3BAlderuccio%2C+Frank%3BMedcalf%2C+Robert+L&rft.aulast=Dahl&rft.aufirst=Lisa&rft.date=2016-07-01&rft.volume=11&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=PLoS+One&rft.issn=&rft_id=info:doi/10.1371%2Fjournal.pone.0158653 LA - English DB - ProQuest Central; ProQuest Environmental Science Collection N1 - Copyright - © 2016 Dahl et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited: Dahl LC, Nasa Z, Chung J, Niego B, Tarlac V, Ho H, et al. (2016) The Influence of Differentially Expressed Tissue-Type Plasminogen Activator in Experimental Autoimmune Encephalomyelitis: Implications for Multiple Sclerosis. PLoS ONE 11(7): e0158653. doi:10.1371/journal.pone.0158653 N1 - Last updated - 2016-07-23 DO - http://dx.doi.org/10.1371/journal.pone.0158653 ER - TY - JOUR T1 - Thermal properties of Rhea's poles; evidence for a meter-deep unconsolidated subsurface layer AN - 1803778057; 2016-062780 JF - Icarus AU - Howett, C J A AU - Spencer, J R AU - Hurford, T AU - Verbiscer, A AU - Segura, M Y1 - 2016/07/01/ PY - 2016 DA - 2016 Jul 01 SP - 140 EP - 148 PB - Elsevier, New York, NY VL - 272 SN - 0019-1035, 0019-1035 KW - albedo KW - surface properties KW - icy satellites KW - polar regions KW - thermal inertia KW - thermal properties KW - porous materials KW - Rhea Satellite KW - porosity KW - emissivity KW - depth KW - infrared spectra KW - volatiles KW - Cassini-Huygens Mission KW - thermal emission KW - interplanetary comparison KW - Composite Infrared Spectrometer KW - thermomechanical properties KW - unconsolidated materials KW - spectra KW - seasonal variations KW - satellites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803778057?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Thermal+properties+of+Rhea%27s+poles%3B+evidence+for+a+meter-deep+unconsolidated+subsurface+layer&rft.au=Howett%2C+C+J+A%3BSpencer%2C+J+R%3BHurford%2C+T%3BVerbiscer%2C+A%3BSegura%2C+M&rft.aulast=Howett&rft.aufirst=C+J&rft.date=2016-07-01&rft.volume=272&rft.issue=&rft.spage=140&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.02.033 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 33 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - albedo; Cassini-Huygens Mission; Composite Infrared Spectrometer; depth; emissivity; icy satellites; infrared spectra; interplanetary comparison; polar regions; porosity; porous materials; Rhea Satellite; satellites; seasonal variations; spectra; surface properties; thermal emission; thermal inertia; thermal properties; thermomechanical properties; unconsolidated materials; volatiles DO - http://dx.doi.org/10.1016/j.icarus.2016.02.033 ER - TY - JOUR T1 - Magma ascent pathways associated with large mountains on Io AN - 1803777590; 2016-062785 JF - Icarus AU - McGovern, Patrick J AU - Kirchoff, Michelle R AU - White, Oliver L AU - Schenk, Paul M Y1 - 2016/07/01/ PY - 2016 DA - 2016 Jul 01 SP - 246 EP - 257 PB - Elsevier, New York, NY VL - 272 SN - 0019-1035, 0019-1035 KW - orientation KW - recycling KW - paterae KW - loading KW - lithosphere KW - magmatism KW - stress KW - resurfacing KW - Io Satellite KW - subsidence KW - Galilean satellites KW - digital terrain models KW - mountains KW - thrust faults KW - volcanism KW - magmas KW - tectonics KW - satellites KW - faults KW - crust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803777590?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Magma+ascent+pathways+associated+with+large+mountains+on+Io&rft.au=McGovern%2C+Patrick+J%3BKirchoff%2C+Michelle+R%3BWhite%2C+Oliver+L%3BSchenk%2C+Paul+M&rft.aulast=McGovern&rft.aufirst=Patrick&rft.date=2016-07-01&rft.volume=272&rft.issue=&rft.spage=246&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.02.035 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 45 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - crust; digital terrain models; faults; Galilean satellites; Io Satellite; lithosphere; loading; magmas; magmatism; mountains; orientation; paterae; recycling; resurfacing; satellites; stress; subsidence; tectonics; thrust faults; volcanism DO - http://dx.doi.org/10.1016/j.icarus.2016.02.035 ER - TY - JOUR T1 - Re-analysis of previous laboratory phase curves; 2, Connections between opposition effect morphology and spectral features of stony meteorites AN - 1803777549; 2016-062781 JF - Icarus AU - Deau, Estelle AU - Spilker, Linda J AU - Flandes, Alberto Y1 - 2016/07/01/ PY - 2016 DA - 2016 Jul 01 SP - 149 EP - 164 PB - Elsevier, New York, NY VL - 272 SN - 0019-1035, 0019-1035 KW - near-infrared spectra KW - ordinary chondrites KW - opposition effect KW - stony meteorites KW - asteroids KW - optical spectra KW - grain size KW - carbonaceous chondrites KW - porosity KW - meteorites KW - laboratory studies KW - photometry KW - mineral composition KW - ultraviolet spectra KW - spectra KW - chondrites KW - chemical composition KW - reflectance KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803777549?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Re-analysis+of+previous+laboratory+phase+curves%3B+2%2C+Connections+between+opposition+effect+morphology+and+spectral+features+of+stony+meteorites&rft.au=Deau%2C+Estelle%3BSpilker%2C+Linda+J%3BFlandes%2C+Alberto&rft.aulast=Deau&rft.aufirst=Estelle&rft.date=2016-07-01&rft.volume=272&rft.issue=&rft.spage=149&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.01.035 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 95 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - asteroids; carbonaceous chondrites; chemical composition; chondrites; grain size; laboratory studies; meteorites; mineral composition; near-infrared spectra; opposition effect; optical spectra; ordinary chondrites; photometry; porosity; reflectance; spectra; stony meteorites; ultraviolet spectra DO - http://dx.doi.org/10.1016/j.icarus.2016.01.035 ER - TY - JOUR T1 - Seasonal and static gravity field of Mars from MGS, Mars Odyssey and MRO radio science AN - 1803774592; 2016-062784 JF - Icarus AU - Genova, Antonio AU - Goossens, Sander AU - Lemoine, Frank G AU - Mazarico, Erwan AU - Neumann, Gregory A AU - Smith, David E AU - Zuber, Maria T Y1 - 2016/07/01/ PY - 2016 DA - 2016 Jul 01 SP - 228 EP - 245 PB - Elsevier, New York, NY VL - 272 SN - 0019-1035, 0019-1035 KW - monitoring KW - free-air anomalies KW - atmosphere KW - Mars Reconnaissance Orbiter KW - Mars KW - Mars Odyssey KW - polar caps KW - tides KW - terrestrial planets KW - spherical harmonic analysis KW - models KW - planets KW - Love number KW - gravity anomalies KW - gravity field KW - topography KW - radio-wave methods KW - Mars Global Surveyor Program KW - MOLA KW - seasonal variations KW - orbital observations KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803774592?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Seasonal+and+static+gravity+field+of+Mars+from+MGS%2C+Mars+Odyssey+and+MRO+radio+science&rft.au=Genova%2C+Antonio%3BGoossens%2C+Sander%3BLemoine%2C+Frank+G%3BMazarico%2C+Erwan%3BNeumann%2C+Gregory+A%3BSmith%2C+David+E%3BZuber%2C+Maria+T&rft.aulast=Genova&rft.aufirst=Antonio&rft.date=2016-07-01&rft.volume=272&rft.issue=&rft.spage=228&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.02.050 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 88 N1 - PubXState - NY N1 - Document feature - illus. incl. 4 tables, sketch maps N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - atmosphere; free-air anomalies; gravity anomalies; gravity field; Love number; Mars; Mars Global Surveyor Program; Mars Odyssey; Mars Reconnaissance Orbiter; models; MOLA; monitoring; orbital observations; planets; polar caps; radio-wave methods; seasonal variations; spherical harmonic analysis; terrestrial planets; tides; topography DO - http://dx.doi.org/10.1016/j.icarus.2016.02.050 ER - TY - JOUR T1 - Refractory and semi-volatile organics at the surface of comet 67P/Churyumov-Gerasimenko; insights from the VIRTIS/Rosetta imaging spectrometer AN - 1803774142; 2016-062774 JF - Icarus AU - Quirico, Eric AU - Moroz, L V AU - Schmitt, B AU - Arnold, G AU - Faure, M AU - Beck, P AU - Bonal, L AU - Ciarniello, Mauro AU - Capaccioni, Fabrizio AU - Filcchione, G AU - Erard, Stephane AU - Leyrat, C AU - Bockelee-Morvan, D AU - Zinzi, A AU - Palomba, E AU - Drossart, P AU - Tosi, F AU - Capria, M T AU - De Sanctis, Maria Cristina AU - Raponi, A AU - Fonti, S AU - Mancarella, F AU - Orofino, V AU - Barucci, Antonella AU - Blecka, M I AU - Carlson, R AU - Despan, Daniela AU - Faure, A AU - Fornasier, S AU - Gudipati, M S AU - Longobardo, A AU - Markus, K AU - Mennella, V AU - Merlin, F AU - Piccioni, G AU - Rousseau, B AU - Taylor, F Y1 - 2016/07/01/ PY - 2016 DA - 2016 Jul 01 SP - 32 EP - 47 PB - Elsevier, New York, NY VL - 272 SN - 0019-1035, 0019-1035 KW - albedo KW - spectrophotometry KW - imagery KW - irradiation KW - Visible and Infrared Thermal Imaging Spectrometer KW - refractory materials KW - solar wind KW - VIRTIS KW - infrared spectra KW - laboratory studies KW - photometry KW - alloys KW - spectra KW - Churyumov-Gerasimenko Comet KW - opaque minerals KW - carbonaceous composition KW - photochemistry KW - volatiles KW - organic compounds KW - Rosetta Mission KW - comets KW - photolysis KW - natural analogs KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - sulfides KW - reflectance KW - aromatic hydrocarbons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803774142?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Refractory+and+semi-volatile+organics+at+the+surface+of+comet+67P%2FChuryumov-Gerasimenko%3B+insights+from+the+VIRTIS%2FRosetta+imaging+spectrometer&rft.au=Quirico%2C+Eric%3BMoroz%2C+L+V%3BSchmitt%2C+B%3BArnold%2C+G%3BFaure%2C+M%3BBeck%2C+P%3BBonal%2C+L%3BCiarniello%2C+Mauro%3BCapaccioni%2C+Fabrizio%3BFilcchione%2C+G%3BErard%2C+Stephane%3BLeyrat%2C+C%3BBockelee-Morvan%2C+D%3BZinzi%2C+A%3BPalomba%2C+E%3BDrossart%2C+P%3BTosi%2C+F%3BCapria%2C+M+T%3BDe+Sanctis%2C+Maria+Cristina%3BRaponi%2C+A%3BFonti%2C+S%3BMancarella%2C+F%3BOrofino%2C+V%3BBarucci%2C+Antonella%3BBlecka%2C+M+I%3BCarlson%2C+R%3BDespan%2C+Daniela%3BFaure%2C+A%3BFornasier%2C+S%3BGudipati%2C+M+S%3BLongobardo%2C+A%3BMarkus%2C+K%3BMennella%2C+V%3BMerlin%2C+F%3BPiccioni%2C+G%3BRousseau%2C+B%3BTaylor%2C+F&rft.aulast=Quirico&rft.aufirst=Eric&rft.date=2016-07-01&rft.volume=272&rft.issue=&rft.spage=32&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.02.028 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 82 N1 - PubXState - NY N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2016-11-17 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - albedo; alloys; aromatic hydrocarbons; carbonaceous composition; Churyumov-Gerasimenko Comet; comets; hydrocarbons; imagery; infrared spectra; irradiation; laboratory studies; natural analogs; opaque minerals; organic compounds; photochemistry; photolysis; photometry; polycyclic aromatic hydrocarbons; reflectance; refractory materials; Rosetta Mission; solar wind; spectra; spectrophotometry; sulfides; VIRTIS; Visible and Infrared Thermal Imaging Spectrometer; volatiles DO - http://dx.doi.org/10.1016/j.icarus.2016.02.028 ER - TY - JOUR T1 - Lithologic variation within bright material on Vesta revealed by linear spectral unmixing AN - 1803773954; 2016-062773 JF - Icarus AU - Zambon, Francesca AU - Tosi, F AU - Carli, Cristian AU - De Sanctis, Maria Cristina AU - Blewett, D T AU - Palomba, E AU - Longobardo, A AU - Frigeri, A AU - Ammannito, E AU - Russell, C T AU - Raymond, C A Y1 - 2016/07/01/ PY - 2016 DA - 2016 Jul 01 SP - 16 EP - 31 PB - Elsevier, New York, NY VL - 272 SN - 0019-1035, 0019-1035 KW - silicates KW - albedo KW - stony meteorites KW - asteroids KW - Bellicia KW - optical spectra KW - olivine group KW - Dawn Mission KW - infrared spectra KW - brightness KW - meteorites KW - Arruntia KW - pyroxene group KW - howardite KW - mixing KW - olivine KW - orthosilicates KW - spectra KW - opaque minerals KW - chain silicates KW - Vesta Asteroid KW - HED meteorites KW - diogenite KW - achondrites KW - nesosilicates KW - detection KW - eucrite KW - reflectance KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803773954?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Lithologic+variation+within+bright+material+on+Vesta+revealed+by+linear+spectral+unmixing&rft.au=Zambon%2C+Francesca%3BTosi%2C+F%3BCarli%2C+Cristian%3BDe+Sanctis%2C+Maria+Cristina%3BBlewett%2C+D+T%3BPalomba%2C+E%3BLongobardo%2C+A%3BFrigeri%2C+A%3BAmmannito%2C+E%3BRussell%2C+C+T%3BRaymond%2C+C+A&rft.aulast=Zambon&rft.aufirst=Francesca&rft.date=2016-07-01&rft.volume=272&rft.issue=&rft.spage=16&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.01.009 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 79 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-07-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - achondrites; albedo; Arruntia; asteroids; Bellicia; brightness; chain silicates; Dawn Mission; detection; diogenite; eucrite; HED meteorites; howardite; infrared spectra; meteorites; mixing; nesosilicates; olivine; olivine group; opaque minerals; optical spectra; orthosilicates; pyroxene group; reflectance; silicates; spectra; stony meteorites; Vesta Asteroid DO - http://dx.doi.org/10.1016/j.icarus.2016.01.009 ER - TY - JOUR T1 - Error distribution modelling of satellite soil moisture measurements for hydrological applications AN - 1819895093; 2016-079102 AB - Satellite-based soil moisture data accuracies are of important concerns by hydrologists because they could significantly influence hydrological modelling uncertainty. Without proper quantification of their uncertainties, it is difficult to optimize the hydrological modelling system and make robust decisions. Currently, the satellite soil moisture data uncertainty has been limited to summary statistics with the validations mainly from the in situ measurements. This study attempts to build the first error distribution model with additional higher-order uncertainty modelling for satellite soil moisture observations. The methodology is demonstrated by a case study using the Soil Moisture and Ocean Salinity satellite soil moisture observations. The validation is based on soil moisture estimates from hydrological modelling, which is more relevant to the intended data use than the in situ measurements. Four probability distributions have been explored to find suitable error distribution curves using the statistical tests and bootstrapping resampling technique. General extreme value is identified as the most suitable one among all the curves. The error distribution model is still in its infant stage, which ignores spatial and temporal correlations, and nonstationarity. Further improvements should be carried out by the hydrological community by expanding the methodology to a wide range of satellite soil moisture data using different hydrological models. Copyright Copyright 2016 John Wiley & Sons, Ltd. JF - Hydrological Processes AU - Zhuo, Lu AU - Dai, Qiang AU - Islam, Tanvir AU - Han, Dawei Y1 - 2016/06/30/ PY - 2016 DA - 2016 Jun 30 SP - 2223 EP - 2236 PB - Wiley-Blackwell, New York, NY VL - 30 IS - 13 SN - 0885-6087, 0885-6087 KW - United States KW - soils KW - hydrology KW - Illinois KW - moisture KW - statistical analysis KW - satellite methods KW - observations KW - models KW - errors KW - infiltration KW - Vermilion River basin KW - water content KW - uncertainty KW - central Illinois KW - remote sensing KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819895093?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrological+Processes&rft.atitle=Error+distribution+modelling+of+satellite+soil+moisture+measurements+for+hydrological+applications&rft.au=Zhuo%2C+Lu%3BDai%2C+Qiang%3BIslam%2C+Tanvir%3BHan%2C+Dawei&rft.aulast=Zhuo&rft.aufirst=Lu&rft.date=2016-06-30&rft.volume=30&rft.issue=13&rft.spage=2223&rft.isbn=&rft.btitle=&rft.title=Hydrological+Processes&rft.issn=08856087&rft_id=info:doi/10.1002%2Fhyp.10789 L2 - http://www3.interscience.wiley.com/cgi-bin/jhome/4125 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 70 N1 - PubXState - NY N1 - Document feature - illus. incl. 5 tables, sketch map N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - central Illinois; errors; hydrology; Illinois; infiltration; models; moisture; observations; remote sensing; satellite methods; soils; statistical analysis; uncertainty; United States; Vermilion River basin; water content DO - http://dx.doi.org/10.1002/hyp.10789 ER - TY - JOUR T1 - Interannual similarity in the Martian atmosphere during the dust storm season AN - 1815668060; 2016-076410 AB - We find that during the dusty season on Mars (southern spring and summer) of years without a global dust storm there are three large regional-scale dust storms. The storms are labeled A, B, and C in seasonal order. This classification is based on examining the zonal mean 50 Pa ( approximately 25 km) daytime temperature retrievals from TES/MGS and MCS/MRO over 6 Mars Years. Regional-scale storms are defined as events where the temperature exceeds 200 K. Examining the MCS dust field at 50 Pa indicates that warming in the Southern Hemisphere is dominated by direct heating, while northern high latitude warming is a dynamical response. A storms are springtime planet encircling Southern Hemisphere events. B storms are southern polar events that begin near perihelion and last through the solstice. C storms are southern summertime events starting well after the end of the B storm. C storms show the most interannual variability. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Geophysical Research Letters AU - Kass, David M AU - Kleinboehl, A AU - McCleese, D J AU - Schofield, J T AU - Smith, M D Y1 - 2016/06/28/ PY - 2016 DA - 2016 Jun 28 SP - 6111 EP - 6118 PB - American Geophysical Union, Washington, DC VL - 43 IS - 12 SN - 0094-8276, 0094-8276 KW - data processing KW - Mars KW - interplanetary dust KW - climate change KW - temperature KW - emission spectra KW - infrared methods KW - radiometers KW - circulation KW - thermal emission KW - spectra KW - diurnal variations KW - boundary layer KW - dust storms KW - annual variations KW - THEMIS KW - global KW - geophysical methods KW - Mars Climate Sounder KW - atmosphere KW - Mars Reconnaissance Orbiter KW - terrestrial planets KW - Southern Hemisphere KW - planets KW - cosmic dust KW - optical properties KW - classification KW - heating KW - Northern Hemisphere KW - data retrieval KW - seasonal variations KW - image analysis KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815668060?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Interannual+similarity+in+the+Martian+atmosphere+during+the+dust+storm+season&rft.au=Kass%2C+David+M%3BKleinboehl%2C+A%3BMcCleese%2C+D+J%3BSchofield%2C+J+T%3BSmith%2C+M+D&rft.aulast=Kass&rft.aufirst=David&rft.date=2016-06-28&rft.volume=43&rft.issue=12&rft.spage=6111&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2016GL068978 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 35 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-09-01 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - annual variations; atmosphere; boundary layer; circulation; classification; climate change; cosmic dust; data processing; data retrieval; diurnal variations; dust storms; emission spectra; geophysical methods; global; heating; image analysis; infrared methods; interplanetary dust; Mars; Mars Climate Sounder; Mars Reconnaissance Orbiter; Northern Hemisphere; optical properties; planets; radiometers; seasonal variations; Southern Hemisphere; spectra; temperature; terrestrial planets; THEMIS; thermal emission DO - http://dx.doi.org/10.1002/2016GL068978 ER - TY - JOUR T1 - Meteoritic influence on sodium and potassium abundance in the lunar exosphere measured by LADEE AN - 1815667998; 2016-076408 AB - The Lunar Atmosphere and Dust Environment Explorer (LADEE) orbited the Moon for approximately 6 months, taking data with the Lunar Dust Experiment (LDEX), Ultraviolet-Visible Spectrometer (UVS), and Neutral Mass Spectrometer (NMS). Here we compare coincident LDEX measurements of meteoritic influx to exospheric column densities of Na and K derived by UVS. We report a strong correlation of exospheric potassium and meteoroid ejecta during the Geminids meteoroid shower, exhibiting a much stronger response than sodium. With the exception of the Geminids, we find a weak correlation between the sporadic meteoroid influx as measured by LDEX and exospheric density as measured by UVS. Abstract Copyright (2016), . The Authors. JF - Geophysical Research Letters AU - Szalay, Jamey R AU - Horanyi, Mihaly AU - Colaprete, Anthony AU - Sarantos, Menelaos Y1 - 2016/06/28/ PY - 2016 DA - 2016 Jun 28 SP - 6096 EP - 6102 PB - American Geophysical Union, Washington, DC VL - 43 IS - 12 SN - 0094-8276, 0094-8276 KW - concentration KW - Moon KW - optical spectra KW - alkali metals KW - mass spectra KW - atmosphere KW - LADEE KW - sodium KW - meteoroids KW - impacts KW - satellite methods KW - measurement KW - exosphere KW - cosmic dust KW - photoionization KW - metals KW - potassium KW - ultraviolet spectra KW - spectra KW - Geminids meteor shower KW - LDEX KW - instruments KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815667998?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Meteoritic+influence+on+sodium+and+potassium+abundance+in+the+lunar+exosphere+measured+by+LADEE&rft.au=Szalay%2C+Jamey+R%3BHoranyi%2C+Mihaly%3BColaprete%2C+Anthony%3BSarantos%2C+Menelaos&rft.aulast=Szalay&rft.aufirst=Jamey&rft.date=2016-06-28&rft.volume=43&rft.issue=12&rft.spage=6096&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2016GL069541 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 26 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2016-11-17 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - alkali metals; atmosphere; concentration; cosmic dust; exosphere; Geminids meteor shower; impacts; instruments; LADEE; LDEX; mass spectra; measurement; metals; meteoroids; Moon; optical spectra; photoionization; potassium; remote sensing; satellite methods; sodium; spectra; ultraviolet spectra DO - http://dx.doi.org/10.1002/2016GL069541 ER - TY - JOUR T1 - Gastric lipoma: an unusual cause of dyspeptic symptoms AN - 1799329098 AB - Gastric lipomas are rare tumours accounting for 2-3% of all benign gastric tumours. These are usually submucosal in origin but in rare cases may be subserosal in origin. Although a majority of gastric lipomas are asymptomatic and usually detected incidentally, occasionally these can cause abdominal pain, dyspeptic disorders, obstruction, invagination and haemorrhages. In the literature, only 200 cases of gastric lipomas have been reported so far. We report a case of a 56-year-old female with a submucosal symptomatic gastric lipoma presenting with disabling dyspeptic symptoms. JF - BMJ Case Reports AU - Nasa, Mukesh AU - Choksey, Ajay AU - Phadke, Aniruddha AU - Sawant, Prabha Y1 - 2016/06/22/ PY - 2016 DA - 2016 Jun 22 CY - London PB - BMJ Publishing Group LTD VL - 2016 KW - Medical Sciences KW - Abdomen KW - Rodents KW - Stomach KW - Pain KW - Tumors KW - Medical imaging KW - Constipation KW - Vomiting KW - Laparoscopy KW - Endoscopy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1799329098?accountid=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=BMJ+Case+Reports&rft.atitle=Gastric+lipoma%3A+an+unusual+cause+of+dyspeptic+symptoms&rft.au=Nasa%2C+Mukesh%3BChoksey%2C+Ajay%3BPhadke%2C+Aniruddha%3BSawant%2C+Prabha&rft.aulast=Nasa&rft.aufirst=Mukesh&rft.date=2016-06-22&rft.volume=2016&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=BMJ+Case+Reports&rft.issn=&rft_id=info:doi/10.1136%2Fbcr-2016-215297 LA - English DB - ProQuest Central N1 - Copyright - Copyright: 2016 2016 BMJ Publishing Group Ltd N1 - Last updated - 2016-07-06 DO - http://dx.doi.org/10.1136/bcr-2016-215297 ER - TY - NEWS T1 - NASA's Operation IceBridge Completes 2016 Arctic Spring Campaign AN - 1795747864 JF - UPI Space Daily AU - Maria-Jose Vinas for NASA Earth News Y1 - 2016/06/12/ PY - 2016 DA - 2016 Jun 12 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1795747864?accountid=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%27s+Operation+IceBridge+Completes+2016+Arctic+Spring+Campaign&rft.au=Maria-Jose+Vinas+for+NASA+Earth+News&rft.aulast=Maria-Jose+Vinas+for+NASA+Earth+News&rft.aufirst=&rft.date=2016-06-12&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 - 2016-06-12 ER - TY - JOUR T1 - Convection in a volatile nitrogen-ice-rich layer drives Pluto's geological vigour AN - 1800392127; 2016-056607 JF - Nature (London) AU - McKinnon, William B AU - Nimmo, Francis AU - Wong, Teresa AU - Schenk, Paul M AU - White, Oliver L AU - Roberts, J H AU - Moore, J M AU - Spencer, J R AU - Howard, A D AU - Umurhan, O M AU - Stern, S A AU - Weaver, H A AU - Olkin, C B AU - Young, L A AU - Smith, K E Y1 - 2016/06/02/ PY - 2016 DA - 2016 Jun 02 SP - 82 EP - 85 PB - Macmillan Journals, London VL - 534 IS - 7605 SN - 0028-0836, 0028-0836 KW - albedo KW - methane KW - numerical models KW - impact features KW - Kuiper Belt KW - aliphatic hydrocarbons KW - alkanes KW - convection KW - dwarf planets KW - nitrogen KW - models KW - volatiles KW - organic compounds KW - ice KW - heat flow KW - surface features KW - hydrocarbons KW - interplanetary comparison KW - impact craters KW - Sputnik Planum KW - Pluto KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800392127?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Convection+in+a+volatile+nitrogen-ice-rich+layer+drives+Pluto%27s+geological+vigour&rft.au=McKinnon%2C+William+B%3BNimmo%2C+Francis%3BWong%2C+Teresa%3BSchenk%2C+Paul+M%3BWhite%2C+Oliver+L%3BRoberts%2C+J+H%3BMoore%2C+J+M%3BSpencer%2C+J+R%3BHoward%2C+A+D%3BUmurhan%2C+O+M%3BStern%2C+S+A%3BWeaver%2C+H+A%3BOlkin%2C+C+B%3BYoung%2C+L+A%3BSmith%2C+K+E&rft.aulast=McKinnon&rft.aufirst=William&rft.date=2016-06-02&rft.volume=534&rft.issue=7605&rft.spage=82&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2Fnature18289 L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 26 N1 - Document feature - illus. N1 - Last updated - 2016-06-30 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - albedo; aliphatic hydrocarbons; alkanes; convection; dwarf planets; heat flow; hydrocarbons; ice; impact craters; impact features; interplanetary comparison; Kuiper Belt; methane; models; nitrogen; numerical models; organic compounds; Pluto; Sputnik Planum; surface features; volatiles DO - http://dx.doi.org/10.1038/nature18289 ER - TY - JOUR T1 - High-resolution modeling of human and climate impacts on global water resources AN - 1832657871; 780562-14 AB - A number of global hydrological models [GHMs) have been developed in recent decades in order to understand the impacts of climate variability and human activities on water resources availability. The spatial resolution of GHMs is mostly constrained at a 0.5 degrees by 0.5 degrees grid [ approximately 50km by approximately 50km at the equator). However, for many of the water-related problems facing society, the current spatial scale of GHMs is insufficient to provide locally relevant information. Here using the PCR-GLOBWB model we present for the first time an analysis of human and climate impacts on global water resources at a 0.1 degrees by 0.1 degrees grid [ approximately 10km by approximately 10km at the equator) in order to depict more precisely regional variability in water availability and use. Most of the model input data (topography, vegetation, soil properties, routing, human water use) have been parameterized at a 0.1 degrees global grid and feature a distinctively higher resolution. Distinct from many other GHMs, PCR-GLOBWB includes groundwater representation and simulates groundwater heads and lateral groundwater flows based on MODFLOW with existing geohydrological information. This study shows that global hydrological simulations at higher spatial resolutions are feasible for multi-decadal to century periods. Abstract Copyright (2016), . The Authors. JF - Journal of Advances in Modeling Earth Systems AU - Wada, Yoshihide AU - de Graaf, Inge E M AU - van Beek, Ludovicus P H Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 735 EP - 763 PB - Wiley for Institute of Global Environment and Society, Calverton, MD VL - 8 IS - 2 KW - scale factor KW - water storage KW - rivers and streams KW - water management KW - GRACE KW - water stress index KW - simulation KW - climate change KW - observations KW - irrigation KW - ground water KW - spatial variations KW - levels KW - drainage basins KW - industry KW - discharge KW - depletion KW - water use KW - water recovery KW - hydrology KW - high-resolution methods KW - water supply KW - monthly variations KW - annual variations KW - cartography KW - base flow KW - human activity KW - global KW - surface water KW - statistical analysis KW - agriculture KW - MODFLOW KW - water balance KW - aquifers KW - models KW - water table KW - recharge KW - hydraulic head KW - transmissivity KW - streamflow KW - regional KW - PCR-GLOBWB KW - water resources KW - accuracy KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832657871?accountid=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=Journal+of+Advances+in+Modeling+Earth+Systems&rft.atitle=High-resolution+modeling+of+human+and+climate+impacts+on+global+water+resources&rft.au=Wada%2C+Yoshihide%3Bde+Graaf%2C+Inge+E+M%3Bvan+Beek%2C+Ludovicus+P+H&rft.aulast=Wada&rft.aufirst=Yoshihide&rft.date=2016-06-01&rft.volume=8&rft.issue=2&rft.spage=735&rft.isbn=&rft.btitle=&rft.title=Journal+of+Advances+in+Modeling+Earth+Systems&rft.issn=1942-2466&rft_id=info:doi/10.1002%2F2015MS000618 L2 - http://agupubs.onlinelibrary.wiley.com/agu/journal/10.1002/(ISSN)1942-2466/ 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 John Wiley & Sons, Chichester, United Kingdom N1 - Number of references - 98 N1 - PubXState - MD N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - accuracy; agriculture; annual variations; aquifers; base flow; cartography; climate change; depletion; discharge; drainage basins; global; GRACE; ground water; high-resolution methods; human activity; hydraulic head; hydrology; industry; irrigation; levels; models; MODFLOW; monthly variations; observations; PCR-GLOBWB; recharge; regional; rivers and streams; scale factor; simulation; spatial variations; statistical analysis; streamflow; surface water; transmissivity; water balance; water management; water recovery; water resources; water storage; water stress index; water supply; water table; water use DO - http://dx.doi.org/10.1002/2015MS000618 ER - TY - JOUR T1 - An automated, open-source pipeline for mass production of digital elevation models (DEMs) from very-high-resolution commercial stereo satellite imagery AN - 1832606068; 773846-9 AB - We adapted the automated, open source NASA Ames Stereo Pipeline (ASP) to generate digital elevation models (DEMs) and orthoimages from very-high-resolution (VHR) commercial imagery of the Earth. These modifications include support for rigorous and rational polynomial coefficient (RPC) sensor models, sensor geometry correction, bundle adjustment, point cloud co-registration, and significant improvements to the ASP code base. We outline a processing workflow for approximately 0.5 m ground sample distance (GSD) DigitalGlobe WorldView-1 and WorldView-2 along-track stereo image data, with an overview of ASP capabilities, an evaluation of ASP correlator options, benchmark test results, and two case studies of DEM accuracy. Output DEM products are posted at approximately 2 m with direct geolocation accuracy of <5.0 m CE90/LE90. An automated iterative closest-point (ICP) co-registration tool reduces absolute vertical and horizontal error to <0.5 m where appropriate ground-control data are available, with observed standard deviation of approximately 0.1-0.5 m for overlapping, co-registered DEMs (n = 14, 17). While ASP can be used to process individual stereo pairs on a local workstation, the methods presented here were developed for large-scale batch processing in a high-performance computing environment. We are leveraging these resources to produce dense time series and regional mosaics for the Earth's polar regions. Abstract Copyright (2016) Elsevier, B.V. JF - ISPRS Journal of Photogrammetry and Remote Sensing AU - Shean, David E AU - Alexandrov, Oleg AU - Moratto, Zachary M AU - Smith, Benjamin E AU - Joughin, Ian R AU - Porter, Claire AU - Morin, Paul Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 101 EP - 117 PB - Elsevier, Amsterdam VL - 116 SN - 0924-2716, 0924-2716 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832606068?accountid=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=ISPRS+Journal+of+Photogrammetry+and+Remote+Sensing&rft.atitle=An+automated%2C+open-source+pipeline+for+mass+production+of+digital+elevation+models+%28DEMs%29+from+very-high-resolution+commercial+stereo+satellite+imagery&rft.au=Shean%2C+David+E%3BAlexandrov%2C+Oleg%3BMoratto%2C+Zachary+M%3BSmith%2C+Benjamin+E%3BJoughin%2C+Ian+R%3BPorter%2C+Claire%3BMorin%2C+Paul&rft.aulast=Shean&rft.aufirst=David&rft.date=2016-06-01&rft.volume=116&rft.issue=&rft.spage=101&rft.isbn=&rft.btitle=&rft.title=ISPRS+Journal+of+Photogrammetry+and+Remote+Sensing&rft.issn=09242716&rft_id=info:doi/10.1016%2Fj.isprsjprs.2016.03.012 L2 - http://www.sciencedirect.com/science/journal/09242716 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 CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Last updated - 2017-01-24 N1 - CODEN - PTGMAQ DO - http://dx.doi.org/10.1016/j.isprsjprs.2016.03.012 ER - TY - JOUR T1 - An inverse modeling study of circulation in the eastern Bering Sea during 2007-2010 AN - 1828849948; 2016-087046 AB - A two-way nested 4d-variational data assimilation system is implemented in the Eastern Bering Sea (EBS) to investigate changes in circulation and thermodynamic state for a 3.8 year period. Assimilated observations include data from 19 moorings deployed on the shelf and in the Bering Strait, 1705 hydrographic stations occupied during eight surveys, and remotely sensed sea surface temperature and sea surface height (SSH) data. Validation of the presented 4dVar reanalysis against the output of two sequential data-assimilative systems (the Bering Ecosystem Study ice-ocean Modeling and Assimilation System (BESTMAS) and the Arctic Cap Nowcast-Forecast System (ACNFS)) has shown that the product is more consistent with the observed transports in the Bering Strait and in the EBS interior both in terms of their magnitude and time variability. Analysis of the data-optimized solution quantifies a sequence of wind-forced events that resulted in the anomalous heat and freshwater transports through the Bering Strait, including a 28 day long flow reversal that occurred in November 2009 and carried Siberian Coastal Current water down to the Gulf of Anadyr. Lagrangian study of the Arctic-bound Pacific waters indicates the extreme importance of the cross-shelf exchange along the path of the Bering Slope Current and quantifies the spectrum of residence times for the waters entering EBS through Unimak Pass and through Aleutian passages. Residence times in the EBS cold pool are diagnosed to be 2-3 times longer than those in the surrounding waters. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Oceans AU - Panteleev, Gleb AU - Yaremchuk, Max AU - Francis, Oceana AU - Stabeno, Phyllis J AU - Weingartner, T AU - Zhang, J Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 3970 EP - 3989 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 6 SN - 2169-9275, 2169-9275 KW - ocean circulation KW - sea water KW - numerical models KW - sea surface water KW - Bering Sea KW - fresh water KW - altimetry KW - salinity KW - marine transport KW - temperature KW - eastern Bering Sea KW - thermohaline circulation KW - transport KW - North Pacific KW - residence time KW - Pacific Ocean KW - digital simulation KW - velocity KW - sea-surface temperature KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828849948?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Oceans&rft.atitle=An+inverse+modeling+study+of+circulation+in+the+eastern+Bering+Sea+during+2007-2010&rft.au=Panteleev%2C+Gleb%3BYaremchuk%2C+Max%3BFrancis%2C+Oceana%3BStabeno%2C+Phyllis+J%3BWeingartner%2C+T%3BZhang%2C+J&rft.aulast=Panteleev&rft.aufirst=Gleb&rft.date=2016-06-01&rft.volume=121&rft.issue=6&rft.spage=3970&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Oceans&rft.issn=21699275&rft_id=info:doi/10.1002%2F2015JC011287 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 58 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - altimetry; Bering Sea; digital simulation; eastern Bering Sea; fresh water; marine transport; North Pacific; numerical models; ocean circulation; Pacific Ocean; residence time; salinity; sea surface water; sea water; sea-surface temperature; temperature; thermohaline circulation; transport; velocity DO - http://dx.doi.org/10.1002/2015JC011287 ER - TY - JOUR T1 - Field and experimental constraints on the rheology of arc basaltic lavas; the January 2014 eruption of Pacaya (Guatemala) AN - 1828846940; 2016-086728 AB - We estimated the rheology of an active basaltic lava flow in the field, and compared it with experimental measurements carried out in the laboratory. In the field we mapped, sampled, and recorded videos of the 2014 flow on the southern flank of Pacaya, Guatemala. Velocimetry data extracted from videos allowed us to determine that lava traveled at approximately 2.8 m/s on the steep approximately 45 degrees slope 50 m from the vent, while 550 m further downflow it was moving at only approximately 0.3 m/s on a approximately 4 degrees slope. Estimates of effective viscosity based on Jeffreys' equation increased from approximately 7600 Pa s near the vent to approximately 28,000 Pa s downflow. In the laboratory, we measured the viscosity of a representative lava composition using a concentric cylinder viscometer, at five different temperatures between 1234 and 1199 degrees C, with crystallinity increasing from 0.1 to 40 vol%. The rheological data were best fit by power law equations, with the flow index decreasing as crystal fraction increased, and no detectable yield strength. Although field-based estimates are based on lava characterized by a lower temperature, higher crystal and bubble fraction, and with a more complex petrographic texture, field estimates and laboratory measurements are mutually consistent and both indicate shear-thinning behavior. The complementary field and laboratory data sets allowed us to isolate the effects of different factors in determining the rheological evolution of the 2014 Pacaya flows. We assess the contributions of cooling, crystallization, and changing ground slope to the 3.7-fold increase in effective viscosity observed in the field over 550 m, and conclude that decreasing slope is the single most important factor over that distance. It follows that the complex relations between slope, flow velocity, and non-Newtonian lava rheology need to be incorporated into models of lava flow emplacement. Copyright 2016 Springer-Verlag Berlin Heidelberg JF - Bulletin of Volcanology AU - Soldati, Arianna AU - Sehlke, A AU - Chigna, G AU - Whittington, A Y1 - 2016/06// PY - 2016 DA - June 2016 EP - Article 43 PB - Springer International [for the] International Association of Volcanology and Chemistry of the Earth's Interior (IAVCEI), Heidelberg VL - 78 IS - 6 SN - 0258-8900, 0258-8900 KW - experimental studies KW - lava flows KW - numerical analysis KW - Guatemala KW - bubbles KW - techniques KW - equations KW - Pacaya KW - measurement KW - viscosity KW - lava KW - rheology KW - eruptions KW - volcanoes KW - velocity KW - basaltic composition KW - Central America KW - instruments KW - field studies KW - 24:Quaternary geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828846940?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+Volcanology&rft.atitle=Field+and+experimental+constraints+on+the+rheology+of+arc+basaltic+lavas%3B+the+January+2014+eruption+of+Pacaya+%28Guatemala%29&rft.au=Soldati%2C+Arianna%3BSehlke%2C+A%3BChigna%2C+G%3BWhittington%2C+A&rft.aulast=Soldati&rft.aufirst=Arianna&rft.date=2016-06-01&rft.volume=78&rft.issue=6&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+Volcanology&rft.issn=02588900&rft_id=info:doi/10.1007%2Fs00445-016-1031-6 L2 - http://www.springerlink.com/(1k1tfmmpjinass550lg0zy55)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100402,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 61 N1 - Document feature - illus. incl. 7 tables, sketch map N1 - Last updated - 2016-10-25 N1 - CODEN - BUVOEW N1 - SubjectsTermNotLitGenreText - basaltic composition; bubbles; Central America; equations; eruptions; experimental studies; field studies; Guatemala; instruments; lava; lava flows; measurement; numerical analysis; Pacaya; rheology; techniques; velocity; viscosity; volcanoes DO - http://dx.doi.org/10.1007/s00445-016-1031-6 ER - TY - JOUR T1 - Spatial scales of optical variability in the coastal ocean; implications for remote sensing and in situ sampling AN - 1828846220; 2016-087058 AB - Use of ocean color remote sensing to understand the effects of environmental changes and anthropogenic activities on estuarine and coastal waters requires the capability to measure and track optically detectable complex biogeochemical processes. An important remote sensor design consideration is the minimum spatial resolution required to resolve key ocean features of physical and biological significance. The spatial scale of variability in optical properties of coastal waters has been investigated using continuous, along-track measurements collected using instruments deployed from ships, aircraft, and satellites. We defined the average coefficient of variance, CV (sub a) , within an image pixel as the primary statistical measure of subpixel variability and investigated how CV (sub a) changes as a function of the Ground Sampling Distance (GSD). In general, d CV (sub a) /dGSD is positive, indicating that the subpixel variability increases with GSD. The relationship between CV (sub a) and GSD is generally nonlinear and the greatest rate of change occurs at small spatial scales. Points of distinct transition in the relationship between CV (sub a) and GSD are evident between 75 and 600 m, varying depending on the location and the optical parameter, and representing the GSD above which most of the spatial variability due to small-scale features is subsumed within a pixel. At GSDs greater than the transition point, most of the small-scale variability occurs at subpixel scales and, therefore, cannot be resolved. On average, the transition GSD is around 200 m. The results have application in both sensor design and in situ sampling strategy in support of coastal remote sensing operations. Abstract Copyright Published 2016. This article is a U.S. Government work and is in the public domain in the USA. JF - Journal of Geophysical Research: Oceans AU - Moses, Wesley J AU - Ackleson, Steven G AU - Hair, Johnathan W AU - Hostetler, Chris A AU - Miller, W David Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 4194 EP - 4208 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 6 SN - 2169-9275, 2169-9275 KW - scale factor KW - digital data KW - sea water KW - laser methods KW - satellite methods KW - case studies KW - spatial variations KW - optical properties KW - lidar methods KW - sampling KW - coastal environment KW - estuarine environment KW - reflectance KW - world ocean KW - remote sensing KW - airborne methods KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828846220?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Oceans&rft.atitle=Spatial+scales+of+optical+variability+in+the+coastal+ocean%3B+implications+for+remote+sensing+and+in+situ+sampling&rft.au=Moses%2C+Wesley+J%3BAckleson%2C+Steven+G%3BHair%2C+Johnathan+W%3BHostetler%2C+Chris+A%3BMiller%2C+W+David&rft.aulast=Moses&rft.aufirst=Wesley&rft.date=2016-06-01&rft.volume=121&rft.issue=6&rft.spage=4194&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Oceans&rft.issn=21699275&rft_id=info:doi/10.1002%2F2016JC011767 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 46 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables, sketch maps N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - airborne methods; case studies; coastal environment; digital data; estuarine environment; laser methods; lidar methods; optical properties; reflectance; remote sensing; sampling; satellite methods; scale factor; sea water; spatial variations; world ocean DO - http://dx.doi.org/10.1002/2016JC011767 ER - TY - JOUR T1 - Tidal disruption of Phobos as the cause of surface fractures AN - 1819896236; 2016-079127 AB - Phobos, the innermost satellite of Mars, displays an extensive system of grooves that are mostly symmetric about its sub-Mars point. Phobos is steadily spiraling inward due to the tides it raises on Mars lagging behind Phobos' orbital position and will suffer tidal disruption before colliding with Mars in a few tens of millions of years. We calculate the surface stress field of the deorbiting satellite and show that the first signs of tidal disruption are already present on its surface. Most of Phobos' prominent grooves have an excellent correlation with computed stress orientations. The model requires a weak interior that has very low rigidity on the tidal evolution time scale, overlain by an approximately 10-100 m exterior shell that has elastic properties similar to lunar regolith as described by Horvath et al. (1980). Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - Hurford, Terry A AU - Asphaug, Erik AU - Spitale, J N AU - Hemingway, D AU - Rhoden, A R AU - Henning, W G AU - Bills, B G AU - Kattenhorn, S A AU - Walker, M Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 1054 EP - 1065 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 6 SN - 2169-9097, 2169-9097 KW - terrestrial planets KW - Phobos Satellite KW - planets KW - fractures KW - numerical models KW - elastic properties KW - surface features KW - stress KW - gravity tides KW - Mars KW - satellites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819896236?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Planets&rft.atitle=Tidal+disruption+of+Phobos+as+the+cause+of+surface+fractures&rft.au=Hurford%2C+Terry+A%3BAsphaug%2C+Erik%3BSpitale%2C+J+N%3BHemingway%2C+D%3BRhoden%2C+A+R%3BHenning%2C+W+G%3BBills%2C+B+G%3BKattenhorn%2C+S+A%3BWalker%2C+M&rft.aulast=Hurford&rft.aufirst=Terry&rft.date=2016-06-01&rft.volume=121&rft.issue=6&rft.spage=1054&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2015JE004943 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 41 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-09-16 N1 - SubjectsTermNotLitGenreText - elastic properties; fractures; gravity tides; Mars; numerical models; Phobos Satellite; planets; satellites; stress; surface features; terrestrial planets DO - http://dx.doi.org/10.1002/2015JE004943 ER - TY - JOUR T1 - High concentrations of manganese and sulfur in deposits on Murray Ridge, Endeavour Crater, Mars AN - 1819895672; 2016-079200 AB - Mars Reconnaissance Orbiter HiRISE images and Opportunity rover observations of the approximately 22 km wide Noachian age Endeavour Crater on Mars show that the rim and surrounding terrains were densely fractured during the impact crater-forming event. Fractures have also propagated upward into the overlying Burns formation sandstones. Opportunity's observations show that the western crater rim segment, called Murray Ridge, is composed of impact breccias with basaltic compositions, as well as occasional fracture-filling calcium sulfate veins. Cook Haven, a gentle depression on Murray Ridge, and the site where Opportunity spent its sixth winter, exposes highly fractured, recessive outcrops that have relatively high concentrations of S and Cl, consistent with modest aqueous alteration. Opportunity's rover wheels serendipitously excavated and overturned several small rocks from a Cook Haven fracture zone. Extensive measurement campaigns were conducted on two of them: Pinnacle Island and Stuart Island. These rocks have the highest concentrations of Mn and S measured to date by Opportunity and occur as a relatively bright sulfate-rich coating on basaltic rock, capped by a thin deposit of one or more dark Mn oxide phases intermixed with sulfate minerals. We infer from these unique Pinnacle Island and Stuart Island rock measurements that subsurface precipitation of sulfate-dominated coatings was followed by an interval of partial dissolution and reaction with one or more strong oxidants (e.g., O (sub 2) ) to produce the Mn oxide mineral(s) intermixed with sulfate-rich salt coatings. In contrast to arid regions on Earth, where Mn oxides are widely incorporated into coatings on surface rocks, our results demonstrate that on Mars the most likely place to deposit and preserve Mn oxides was in fracture zones where migrating fluids intersected surface oxidants, forming precipitates shielded from subsequent physical erosion. JF - American Mineralogist AU - Arvidson, Raymond E AU - Squyres, Steven W AU - Morris, Richard V AU - Knoll, Andrew H AU - Gellert, Ralf AU - Clark, Benton C AU - Catalano, Jeffrey G AU - Jolliff, Bradley L AU - McLennan, Scott M AU - Herkenhoff, Kenneth E AU - vanBommel, Scott AU - Mittlefehldt, David W AU - Grotzinger, John P AU - Guinness, Edward A AU - Johnson, Jeffrey R AU - Bell, James F, III AU - Farrand, William H AU - Stein, Nathan AU - Fox, Valerie K AU - Golombek, Matthew P AU - Hinkle, Margaret A G AU - Calvin, Wendy M AU - de Souza, Paulo A, Jr Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 1389 EP - 1405 PB - Mineralogical Society of America, Washington, DC VL - 101 IS - 6 SN - 0003-004X, 0003-004X KW - Noachian KW - Murray Ridge KW - sandstone KW - Mars KW - manganese KW - Mars Exploration Rover KW - sedimentary rocks KW - mineral composition KW - metamorphic rocks KW - manganese oxides KW - oxides KW - HiRISE KW - Pinnacle Island KW - chemical composition KW - Cook Haven fracture zone KW - Burns Formation KW - breccia KW - impactites KW - Opportunity Rover KW - Mars Reconnaissance Orbiter KW - impact breccia KW - terrestrial planets KW - planets KW - fracture zones KW - deposition KW - metals KW - Stuart Island KW - sulfur KW - clastic rocks KW - Endeavour Crater KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819895672?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=High+concentrations+of+manganese+and+sulfur+in+deposits+on+Murray+Ridge%2C+Endeavour+Crater%2C+Mars&rft.au=Arvidson%2C+Raymond+E%3BSquyres%2C+Steven+W%3BMorris%2C+Richard+V%3BKnoll%2C+Andrew+H%3BGellert%2C+Ralf%3BClark%2C+Benton+C%3BCatalano%2C+Jeffrey+G%3BJolliff%2C+Bradley+L%3BMcLennan%2C+Scott+M%3BHerkenhoff%2C+Kenneth+E%3BvanBommel%2C+Scott%3BMittlefehldt%2C+David+W%3BGrotzinger%2C+John+P%3BGuinness%2C+Edward+A%3BJohnson%2C+Jeffrey+R%3BBell%2C+James+F%2C+III%3BFarrand%2C+William+H%3BStein%2C+Nathan%3BFox%2C+Valerie+K%3BGolombek%2C+Matthew+P%3BHinkle%2C+Margaret+A+G%3BCalvin%2C+Wendy+M%3Bde+Souza%2C+Paulo+A%2C+Jr&rft.aulast=Arvidson&rft.aufirst=Raymond&rft.date=2016-06-01&rft.volume=101&rft.issue=6&rft.spage=1389&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam-2016-5599 L2 - http://www.minsocam.org/MSA/AmMin/TOC/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 54 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2016-09-16 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - breccia; Burns Formation; chemical composition; clastic rocks; Cook Haven fracture zone; deposition; Endeavour Crater; fracture zones; HiRISE; impact breccia; impactites; manganese; manganese oxides; Mars; Mars Exploration Rover; Mars Reconnaissance Orbiter; metals; metamorphic rocks; mineral composition; Murray Ridge; Noachian; Opportunity Rover; oxides; Pinnacle Island; planets; sandstone; sedimentary rocks; Stuart Island; sulfur; terrestrial planets DO - http://dx.doi.org/10.2138/am-2016-5599 ER - TY - JOUR T1 - New approaches to inferences for steep-sided domes on Venus AN - 1815670131; 2016-076300 AB - New mathematical approaches for the relaxation and emplacement of viscous lava domes are presented and applied to steep-sided domes on Venus. A similarity solution approach is applied to the governing equation for fluid flow in a cylindrical geometry for two distinct scenarios. In the first scenario, dome relaxation is explored assuming a constant volume of fluid (i.e. lava) has been rapidly emplaced onto the surface. Cooling of lava is represented by a time-variable viscosity and singularities inherent in previous models for dome relaxation have been eliminated. At the onset of relaxation, bulk dynamic viscosities lie in the range between 10 (super 10) -10 (super 16) Pa s, consistent with basaltic-andesite to rhyolitic compositions. Plausible relaxation times range from 5 to 5000 years, depending on initial lava viscosity. The first scenario, however, is only valid during the final stages of dome relaxation and does not consider the time taken for lava to be extruded onto the surface. In the second scenario, emplacement and growth of a steep-sided dome is considered when the volume of lava on the surface increases over time (i.e. time-variable volume approach). The volumetric flowrate may depend on an arbitrary power of the dome thickness, thus embracing Newtonian as well as other rheologies for describing terrestrial and planetary mass flows. The approach can be used to distinguish between basic flowrate models for fluid emplacement. The formalism results in radial expansion of a dome proportional to t (super 1/2) , consistent with the diffusive nature of the governing equation. The flow at the front is shown to thicken as the front advances for a constant rate of lava supply. Emplacement times are intimately correlated with the bulk rheology. Comparison of the theoretical profiles with the shape of a typical dome on Venus indicates that a Newtonian bulk rheology is most appropriate, consistent with prior studies. However, results here suggest a bulk dynamic viscosity of 10 (super 12) -10 (super 13) Pa s and emplacement times of approximately 2-16 years. Both scenarios investigated give emplacement times significantly less than prior estimates and compositions consistent with basaltic andesite. JF - Journal of Volcanology and Geothermal Research AU - Quick, Lynnae C AU - Glaze, Lori S AU - Baloga, Stephen M AU - Stofan, Ellen R Y1 - 2016/06/01/ PY - 2016 DA - 2016 Jun 01 SP - 93 EP - 105 PB - Elsevier, Amsterdam VL - 319 SN - 0377-0273, 0377-0273 KW - andesites KW - volcanic rocks KW - igneous rocks KW - Venus KW - viscous materials KW - theoretical studies KW - volcanism KW - rheology KW - cooling KW - composition KW - basaltic andesite KW - fluid flow KW - rates KW - relaxation KW - equations KW - emplacement KW - boundary conditions KW - terrestrial planets KW - morphology KW - lava domes KW - planets KW - viscosity KW - mathematical methods KW - volume KW - volcanoes KW - theoretical models KW - domes KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815670131?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Volcanology+and+Geothermal+Research&rft.atitle=New+approaches+to+inferences+for+steep-sided+domes+on+Venus&rft.au=Quick%2C+Lynnae+C%3BGlaze%2C+Lori+S%3BBaloga%2C+Stephen+M%3BStofan%2C+Ellen+R&rft.aulast=Quick&rft.aufirst=Lynnae&rft.date=2016-06-01&rft.volume=319&rft.issue=&rft.spage=93&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2Fj.jvolgeores.2016.02.028 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 57 N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-09-01 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - andesites; basaltic andesite; boundary conditions; composition; cooling; domes; emplacement; equations; fluid flow; igneous rocks; lava domes; mathematical methods; morphology; planets; rates; relaxation; rheology; terrestrial planets; theoretical models; theoretical studies; Venus; viscosity; viscous materials; volcanic rocks; volcanism; volcanoes; volume DO - http://dx.doi.org/10.1016/j.jvolgeores.2016.02.028 ER - TY - JOUR T1 - Organic matter in cosmic dust AN - 1812214701; 2016-070940 AB - Organics are a significant component of most cosmic dust, as revealed from actual samples of extraterrestrial dust in the Earth's stratosphere, in Antarctic ice and snow, in near-Earth orbit, and in asteroids and comets. Cosmic dust contains a diverse population of organic materials that owe their origins to a variety of chemical processes occurring in many different environments. The presence of isotopic enrichments of D and (super 15) N suggests that many of these organic materials have an interstellar or protosolar heritage. The study of these samples is of considerable importance because they are the best preserved materials of the early Solar System available. JF - Elements AU - Sandford, Scott A AU - Engrand, Cecile AU - Rotundi, Alessandra Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 185 EP - 189 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 - 12 IS - 3 SN - 1811-5209, 1811-5209 KW - isotopes KW - interplanetary dust KW - stable isotopes KW - life origin KW - nitrogen KW - meteorites KW - presolar grains KW - Wild 2 Comet KW - deuterium KW - Churyumov-Gerasimenko Comet KW - interstellar dust KW - carbonaceous composition KW - Stardust Mission KW - N-15 KW - early solar system KW - morphology KW - micrometeorites KW - organic compounds KW - cosmic dust KW - Rosetta Mission KW - comets KW - Antarctica KW - hydrogen KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - cometary dust KW - aromatic hydrocarbons KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812214701?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Organic+matter+in+cosmic+dust&rft.au=Sandford%2C+Scott+A%3BEngrand%2C+Cecile%3BRotundi%2C+Alessandra&rft.aulast=Sandford&rft.aufirst=Scott&rft.date=2016-06-01&rft.volume=12&rft.issue=3&rft.spage=185&rft.isbn=&rft.btitle=&rft.title=Elements&rft.issn=18115209&rft_id=info:doi/10.2113%2Fgselements.12.3.185 L2 - http://www.elementsmagazine.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 30 N1 - Document feature - illus. N1 - Last updated - 2016-08-18 N1 - SubjectsTermNotLitGenreText - Antarctica; aromatic hydrocarbons; carbonaceous composition; Churyumov-Gerasimenko Comet; cometary dust; comets; cosmic dust; deuterium; early solar system; hydrocarbons; hydrogen; interplanetary dust; interstellar dust; isotopes; life origin; meteorites; micrometeorites; morphology; N-15; nitrogen; organic compounds; polycyclic aromatic hydrocarbons; presolar grains; Rosetta Mission; stable isotopes; Stardust Mission; Wild 2 Comet DO - http://dx.doi.org/10.2113/gselements.12.3.185 ER - TY - JOUR T1 - NASA's Cosmic Dust Program; collecting dust since 1981 AN - 1812214625; 2016-070936 JF - Elements AU - Zolensky, Michael Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 159 EP - 160 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 - 12 IS - 3 SN - 1811-5209, 1811-5209 KW - clean rooms KW - asteroids KW - microanalysis KW - government agencies KW - interplanetary dust KW - laboratory studies KW - stratosphere KW - sampling KW - Wild 2 Comet KW - interstellar dust KW - collections KW - programs KW - collecting KW - Stardust Mission KW - atmosphere KW - curation KW - cosmic dust KW - comets KW - NASA KW - microscope methods KW - meteor showers KW - aircraft KW - scanning electron microscopy KW - cometary dust KW - storage KW - airborne methods KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812214625?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=NASA%27s+Cosmic+Dust+Program%3B+collecting+dust+since+1981&rft.au=Zolensky%2C+Michael&rft.aulast=Zolensky&rft.aufirst=Michael&rft.date=2016-06-01&rft.volume=12&rft.issue=3&rft.spage=159&rft.isbn=&rft.btitle=&rft.title=Elements&rft.issn=18115209&rft_id=info:doi/10.2113%2Fgselements.12.3.159 L2 - http://www.elementsmagazine.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 13 N1 - Document feature - illus. N1 - Last updated - 2016-08-18 N1 - SubjectsTermNotLitGenreText - airborne methods; aircraft; asteroids; atmosphere; clean rooms; collecting; collections; cometary dust; comets; cosmic dust; curation; government agencies; interplanetary dust; interstellar dust; laboratory studies; meteor showers; microanalysis; microscope methods; NASA; programs; sampling; scanning electron microscopy; Stardust Mission; storage; stratosphere; Wild 2 Comet DO - http://dx.doi.org/10.2113/gselements.12.3.159 ER - TY - JOUR T1 - Cosmic dust; finding a needle in a haystack AN - 1812211497; 2016-070938 AB - Collecting cosmic dust is a tricky business! Despite Earth's surface being showered by thousands of tons of comic dust every year, such dust is quickly lost in a sea of terrestrial particles. Finding the tiny cosmic treasures requires collecting dust from the cleanest environments where the terrestrial particle background is low. The stratosphere can be sampled via high-flying aircraft, whereas sampling cosmic dust from polar regions and the deep sea requires techniques that concentrate the particles. Collection efforts are worth it. Cosmic dust derives from every dust-producing object in the Solar System, including ancient Solar System materials, possibly even interstellar materials, of a type not found in meteorites. JF - Elements AU - Taylor, Susan AU - Messenger, Scott AU - Folco, Luigi Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 171 EP - 176 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 - 12 IS - 3 SN - 1811-5209, 1811-5209 KW - aggregate KW - asteroids KW - cosmogenic elements KW - deep-sea environment KW - interplanetary dust KW - melts KW - meteorites KW - stratosphere KW - sampling KW - noble gases KW - future KW - chemical composition KW - interstellar dust KW - spherules KW - polar regions KW - collecting KW - parent bodies KW - porous materials KW - size KW - early solar system KW - aqueous alteration KW - micrometeorites KW - cosmic dust KW - comets KW - Antarctica KW - marine environment KW - meteor showers KW - classification KW - aircraft KW - cometary dust KW - airborne methods KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812211497?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Cosmic+dust%3B+finding+a+needle+in+a+haystack&rft.au=Taylor%2C+Susan%3BMessenger%2C+Scott%3BFolco%2C+Luigi&rft.aulast=Taylor&rft.aufirst=Susan&rft.date=2016-06-01&rft.volume=12&rft.issue=3&rft.spage=171&rft.isbn=&rft.btitle=&rft.title=Elements&rft.issn=18115209&rft_id=info:doi/10.2113%2Fgselements.12.3.171 L2 - http://www.elementsmagazine.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 30 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-08-18 N1 - SubjectsTermNotLitGenreText - aggregate; airborne methods; aircraft; Antarctica; aqueous alteration; asteroids; chemical composition; classification; collecting; cometary dust; comets; cosmic dust; cosmogenic elements; deep-sea environment; early solar system; future; interplanetary dust; interstellar dust; marine environment; melts; meteor showers; meteorites; micrometeorites; noble gases; parent bodies; polar regions; porous materials; sampling; size; spherules; stratosphere DO - http://dx.doi.org/10.2113/gselements.12.3.171 ER - TY - JOUR T1 - Prebiotic chemistry and atmospheric warming of early Earth by an active young Sun AN - 1808728802; PQ0003237144 AB - Nitrogen is a critical ingredient of complex biological molecules. Molecular nitrogen, however, which was outgassed into the Earth's early atmosphere, is relatively chemically inert and nitrogen fixation into more chemically reactive compounds requires high temperatures. Possible mechanisms of nitrogen fixation include lightning, atmospheric shock heating by meteorites, and solar ultraviolet radiation. Here we show that nitrogen fixation in the early terrestrial atmosphere can be explained by frequent and powerful coronal mass ejection events from the young Sun-so-called superflares. Using magnetohydrodynamic simulations constrained by Kepler Space Telescope observations, we find that successive superflare ejections produce shocks that accelerate energetic particles, which would have compressed the early Earth's magnetosphere. The resulting extended polar cap openings provide pathways for energetic particles to penetrate into the atmosphere and, according to our atmospheric chemistry simulations, initiate reactions converting molecular nitrogen, carbon dioxide and methane to the potent greenhouse gas nitrous oxide as well as hydrogen cyanide, an essential compound for life. Furthermore, the destruction of N sub(2), CO sub(2) and CH sub(4) suggests that these greenhouse gases cannot explain the stability of liquid water on the early Earth. Instead, we propose that the efficient formation of nitrous oxide could explain a warm early Earth. JF - Nature Geoscience AU - Airapetian, V S AU - Glocer, A AU - Gronoff, G AU - Hebrard, E AU - Danchi, W AD - NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, Maryland 20771, USA Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 452 EP - 455 PB - Nature Publishing Group, The Macmillan Building London N1 9XW United Kingdom VL - 9 IS - 6 SN - 1752-0894, 1752-0894 KW - Ecology Abstracts; Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Lightning KW - Climate change KW - Hydrogen KW - Electricity KW - Solar radiation KW - Atmosphere KW - High temperatures KW - Cyanide KW - Magnetosphere KW - U.V. radiation KW - Nitrous oxide KW - Magnetohydrodynamics KW - Polar cap KW - Nitrogen Fixation KW - Ultraviolet radiation KW - Sun KW - Methane KW - Atmospheric gases KW - Temperature requirements KW - Hydrogen cyanide KW - Coronal mass ejections KW - Solar ultraviolet irradiance KW - Greenhouse effect KW - Solar atmospheric heating KW - Greenhouses KW - Heating KW - Numerical simulations KW - Shock KW - Nitrogen fixation KW - Atmospheric chemistry KW - Greenhouse gases KW - Carbon dioxide KW - Oxides KW - Nitrogen KW - Carbon Dioxide KW - Q2 09262:Methods and instruments KW - SW 0810:General KW - D 04040:Ecosystem and Ecology Studies KW - M2 523.64:Comets (523.64) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808728802?accountid=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=Nature+Geoscience&rft.atitle=Prebiotic+chemistry+and+atmospheric+warming+of+early+Earth+by+an+active+young+Sun&rft.au=Airapetian%2C+V+S%3BGlocer%2C+A%3BGronoff%2C+G%3BHebrard%2C+E%3BDanchi%2C+W&rft.aulast=Airapetian&rft.aufirst=V&rft.date=2016-06-01&rft.volume=9&rft.issue=6&rft.spage=452&rft.isbn=&rft.btitle=&rft.title=Nature+Geoscience&rft.issn=17520894&rft_id=info:doi/10.1038%2Fngeo2719 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Methane; Atmospheric gases; Lightning; Nitrous oxide; Nitrogen fixation; Climate change; Atmospheric chemistry; Greenhouse effect; Carbon dioxide; Hydrogen cyanide; Temperature requirements; Electricity; Atmosphere; Greenhouses; U.V. radiation; Shock; Sun; Greenhouse gases; Coronal mass ejections; Solar ultraviolet irradiance; Hydrogen; Solar atmospheric heating; Solar radiation; High temperatures; Magnetosphere; Numerical simulations; Polar cap; Magnetohydrodynamics; Ultraviolet radiation; Cyanide; Heating; Nitrogen Fixation; Oxides; Carbon Dioxide; Nitrogen DO - http://dx.doi.org/10.1038/ngeo2719 ER - TY - JOUR T1 - The relationship between latent heating, vertical velocity, and precipitation processes: The impact of aerosols on precipitation in organized deep convective systems AN - 1808684809; PQ0003353584 AB - A high-resolution, two-dimensional cloud-resolving model with spectral-bin microphysics is used to study the impact of aerosols on precipitation processes in both a tropical oceanic and a midlatitude continental squall line with regard to three processes: latent heating (LH), cold pool dynamics, and ice microphysics. Evaporative cooling in the lower troposphere is found to enhance rainfall in low cloud condensation nuclei (CCN) concentration scenarios in the developing stages of a midlatitude convective precipitation system. In contrast, the tropical case produced more rainfall under high CCN concentrations. Both cold pools and low-level convergence are stronger for those configurations having enhanced rainfall. Nevertheless, latent heat release is stronger (especially after initial precipitation) in the scenarios having more rainfall in both the tropical and midlatitude environment. Sensitivity tests are performed to examine the impact of ice and evaporative cooling on the relationship between aerosols, LH, and precipitation processes. The results show that evaporative cooling is important for cold pool strength and rain enhancement in both cases. However, ice microphysics play a larger role in the midlatitude case compared to the tropics. Detailed analysis of the vertical velocity-governing equation shows that temperature buoyancy can enhance updrafts/downdrafts in the middle/lower troposphere in the convective core region; however, the vertical pressure gradient force (PGF) is of the same order and acts in the opposite direction. Water loading is small but of the same order as the net PGF-temperature buoyancy forcing. The balance among these terms determines the intensity of convection. Key Points * Increasing aerosol number concentrations could either enhance or reduce surface precipitation * Enhanced near-surface cold pool strength is important in precipitation enhancement * Other processes include modifications of latent heat release and ice microphysics by aerosols JF - Journal of Geophysical Research: Atmospheres AU - Tao, Wei-Kuo AU - Li, Xiaowen AD - Mesoscale Atmospheric Processes Laboratory, NASA/Goddard Space Flight Center, Greenbelt, Maryland, USA. Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 6299 EP - 6320 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 121 IS - 11 SN - 2169-897X, 2169-897X KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Convection KW - Rainfall KW - Pools KW - Downdrafts KW - Latent Heat KW - Cold pools KW - Vertical velocities KW - Buoyancy KW - Atmospheric precipitations KW - Marine KW - Aerosols KW - Ocean-ice-atmosphere system KW - Precipitation processes KW - Aerosols-cloud condensation nuclei relationships KW - Brackish KW - Troposphere KW - Precipitation KW - Cloud condensation nuclei KW - Cooling KW - Clouds KW - Strength KW - Sea ice KW - Heating KW - Lower troposphere KW - Convective activity KW - Latent heat release KW - Loads (forces) KW - Squall lines KW - Pressure gradients KW - Evaporative cooling KW - Q2 09243:Structure, mechanics and thermodynamics KW - M2 551.510.42:Air Pollution (551.510.42) KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808684809?accountid=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+Geophysical+Research%3A+Atmospheres&rft.atitle=The+relationship+between+latent+heating%2C+vertical+velocity%2C+and+precipitation+processes%3A+The+impact+of+aerosols+on+precipitation+in+organized+deep+convective+systems&rft.au=Tao%2C+Wei-Kuo%3BLi%2C+Xiaowen&rft.aulast=Tao&rft.aufirst=Wei-Kuo&rft.date=2016-06-01&rft.volume=121&rft.issue=11&rft.spage=6299&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2015JD024267 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Convection; Atmospheric precipitations; Sea ice; Ocean-ice-atmosphere system; Aerosols; Troposphere; Loads (forces); Pressure gradients; Buoyancy; Precipitation processes; Aerosols-cloud condensation nuclei relationships; Precipitation; Cloud condensation nuclei; Downdrafts; Cold pools; Clouds; Lower troposphere; Latent heat release; Convective activity; Vertical velocities; Squall lines; Evaporative cooling; Strength; Heating; Rainfall; Pools; Cooling; Latent Heat; Marine; Brackish DO - http://dx.doi.org/10.1002/2015JD024267 ER - TY - JOUR T1 - An "On-Line" Method for Oxygen Isotope Exchange Between Gas-Phase CO sub(2) and Water AN - 1808648787; PQ0003175780 AB - An "on-line" mixing system has been developed and evaluated for continuous oxygen isotope exchange between gas-phase CO sub(2) and liquid water. The system is composed of three basic parts: equipment and materials used to introduce water and gas into a mixing reservoir, the mixing and exchange reservoir, and a vessel used to separate gas and water phases exiting the system. A series of experiments were performed to monitor the isotope exchange process over a range of temperatures (5-40 degree C) and CO sub(2) partial pressures (202-15,200 Pa). Isotopic exchange was evaluated using CO sub(2) having delta super(18)O values of 30.4 and 37.8 ppt and waters of two distinct oxygen isotope compositions (-6.5 to -5 and 6 to 7.5 ppt). Isotope ratios were determined by isotope ratio mass spectrometry and cavity ring-down spectroscopy. CO sub(2) did not reach oxygen isotope equilibrium under the conditions described here. However, oxygen isotope exchange rate constants were determined at different temperatures and regressed to yield the expression k (h super(-1)) = 0.020 T ( degree C) + 0.28. Using this expression, the residence time required to reach oxygen isotope equilibrium may be estimated for a given set of environmental conditions (e.g., delta super(18)O value of water, temperature). System parameters can be modified to achieve a specific delta super(18)O value for CO sub(2). Consequently, the exchange system described here has the ability to deliver a constant flow of CO sub(2) at a desired oxygen isotope composition. This ability is attractive for a variety of applications such as experiments that utilize flow-through reactors and environmental chambers or require static chemical conditions. JF - Aquatic Geochemistry AU - Levitt, Nicholas Paul AU - Romanek, Christopher S AD - NASA Astrobiology Institute and Department of Earth and Environmental Sciences, University of Kentucky, Lexington, KY, 40506, USA, nlevitt@wisc.edu Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 253 EP - 269 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 22 IS - 3 SN - 1380-6165, 1380-6165 KW - Aqualine Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Mass Spectrometry KW - Reservoir KW - Water Temperature KW - Residence time KW - Mixing KW - Environmental factors KW - Reservoirs KW - Temperature effects KW - Geochemistry KW - Temperature KW - Oxygen isotopes KW - Equilibrium KW - Oxygen Isotopes KW - Oxygen isotope ratio KW - Carbon dioxide KW - Environmental conditions KW - Carbon Dioxide KW - AQ 00001:Water Resources and Supplies KW - Q2 09262:Methods and instruments KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808648787?accountid=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=Aquatic+Geochemistry&rft.atitle=An+%22On-Line%22+Method+for+Oxygen+Isotope+Exchange+Between+Gas-Phase+CO+sub%282%29+and+Water&rft.au=Levitt%2C+Nicholas+Paul%3BRomanek%2C+Christopher+S&rft.aulast=Levitt&rft.aufirst=Nicholas&rft.date=2016-06-01&rft.volume=22&rft.issue=3&rft.spage=253&rft.isbn=&rft.btitle=&rft.title=Aquatic+Geochemistry&rft.issn=13806165&rft_id=info:doi/10.1007%2Fs10498-016-9291-5 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Number of references - 27 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Temperature effects; Oxygen isotopes; Reservoir; Residence time; Geochemistry; Oxygen isotope ratio; Environmental conditions; Carbon dioxide; Environmental factors; Mass Spectrometry; Water Temperature; Equilibrium; Temperature; Oxygen Isotopes; Reservoirs; Mixing; Carbon Dioxide DO - http://dx.doi.org/10.1007/s10498-016-9291-5 ER - TY - JOUR T1 - Modeling landslide susceptibility over large regions with fuzzy overlay AN - 1808634064; PQ0003183456 AB - Landslide susceptibility mapping is most effective if detailed surface and subsurface information can be combined with authoritative landslide catalogs or a deep understanding of local conditions. However, these types of homogeneous input data and catalogs are frequently not available over large areas. In this study, we model landslide susceptibility in Central America and the Caribbean islands by combining three globally available datasets and one regional dataset with fuzzy overlay. This primarily heuristic model provides the flexibility to test a range of different contributing variables and the capability to compare landslide inventories within the model framework that vary greatly in their size, spatiotemporal scope, and collection methods. We create a regional susceptibility map and evaluate its performance using receiver operating characteristics for both continuous and binned susceptibility values. This susceptibility map forms the basis for a near-real-time landslide hazard assessment system that couples susceptibility with rainfall and soil moisture triggers to estimate potential landslide activity at a regional scale. The application of this susceptibility model at the regional scale provides a foundation for transferring the methodology to other geographic areas. JF - Landslides AU - Kirschbaum, Dalia AU - Stanley, Thomas AU - Yatheendradas, Soni AD - Hydrological Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, 20771, USA, dalia.b.kirschbaum@nasa.gov Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 485 EP - 496 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 13 IS - 3 SN - 1612-510X, 1612-510X KW - Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Caribbean Islands KW - Flexibility KW - Rainfall KW - Catalogues KW - Model Testing KW - Model Studies KW - Methodology KW - Landslides KW - Performance Evaluation KW - Assessments KW - Soils KW - Moisture Content KW - Mapping KW - Soil moisture KW - Central America KW - Modelling KW - Hazard assessment KW - Q2 09144:Regional studies, expeditions and data reports KW - SW 0810:General KW - M2 556.14:Infiltration/Soil Moisture (556.14) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808634064?accountid=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=Landslides&rft.atitle=Modeling+landslide+susceptibility+over+large+regions+with+fuzzy+overlay&rft.au=Kirschbaum%2C+Dalia%3BStanley%2C+Thomas%3BYatheendradas%2C+Soni&rft.aulast=Kirschbaum&rft.aufirst=Dalia&rft.date=2016-06-01&rft.volume=13&rft.issue=3&rft.spage=485&rft.isbn=&rft.btitle=&rft.title=Landslides&rft.issn=1612510X&rft_id=info:doi/10.1007%2Fs10346-015-0577-2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Number of references - 51 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Landslides; Soils; Catalogues; Mapping; Hazard assessment; Methodology; Modelling; Soil moisture; Performance Evaluation; Assessments; Rainfall; Flexibility; Moisture Content; Model Testing; Model Studies; Caribbean Islands; Central America DO - http://dx.doi.org/10.1007/s10346-015-0577-2 ER - TY - JOUR T1 - Mineralogy of iron sulfides in CM1 and CI1 lithologies of the Kaidun breccia; records of extreme to intense hydrothermal alteration AN - 1803776501; 2016-063103 AB - The polymict Kaidun microbreccia contains lithologies of C-type chondrites with euhedral iron sulfide crystals of hydrothermal origin. Our FIB-TEM study reveals that acicular sulfides in a CM1 lithology are composed of Fe-rich pyrrhotite with nonintegral vacancy superstructures (NC-pyrrhotite), troilite, and pentlandite, all showing distinct exsolution textures. Based on phase relations in the Fe-Ni-S system, we constrain the temperature of formation of the originally homogeneous monosulfide solid solution to the range of 100-300 degrees C. In some crystals the exsolution of pentlandite and the microtextural equilibration was incomplete, probably due to rapid cooling. We use thermodynamic modeling to constrain the physicochemical conditions of the extreme hydrothermal alteration in this lithology. Unless the CM1 lithology was sourced from a large depth in the parent body (internal pressure >85 bar) or the temperatures were in the lower range of the interval determined, the water was likely present as vapor. Previously described light delta (super 34) S compositions of sulfides in Kaidun's CM1 lithology are likely due to the loss of (super 34) S-enriched H (sub 2) S during boiling. Platy sulfide crystals in an adjacent, intensely altered CI1 lithology are composed of Fe-poor, monoclinic 4C-pyrrhotite and NC-pyrrhotite and probably formed at lower temperatures and higher fS (sub 2) relative to the CM1 lithology. However, a better understanding of the stability of Fe-poor pyrrhotites at temperatures below 300 degrees C is required to better constrain these conditions. Abstract Copyright The Meteoritical Society, 2016. JF - Meteoritics & Planetary Science AU - Harries, Dennis AU - Zolensky, Michael E Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 1096 EP - 1109 PB - Meteoritical Society, Fayetteville, AR VL - 51 IS - 6 SN - 1086-9379, 1086-9379 KW - stony meteorites KW - isotopes KW - pentlandite KW - microstructure KW - thermal history KW - metasomatism KW - stable isotopes KW - fugacity KW - temperature KW - meteorites KW - phase equilibria KW - cooling KW - hydrothermal alteration KW - chondrites KW - pyrrhotite KW - troilite KW - CI chondrites KW - breccia KW - textures KW - isotope ratios KW - parent bodies KW - electron microscopy data KW - carbonaceous chondrites KW - solid solution KW - TEM data KW - early solar system KW - Kaidun Meteorite KW - S-34/S-32 KW - iron sulfides KW - sulfur KW - exsolution 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/1803776501?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+of+iron+sulfides+in+CM1+and+CI1+lithologies+of+the+Kaidun+breccia%3B+records+of+extreme+to+intense+hydrothermal+alteration&rft.au=Harries%2C+Dennis%3BZolensky%2C+Michael+E&rft.aulast=Harries&rft.aufirst=Dennis&rft.date=2016-06-01&rft.volume=51&rft.issue=6&rft.spage=1096&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12648 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 52 N1 - PubXState - AR N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-07-14 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - breccia; carbonaceous chondrites; chondrites; CI chondrites; CM chondrites; cooling; early solar system; electron microscopy data; exsolution; fugacity; hydrothermal alteration; iron sulfides; isotope ratios; isotopes; Kaidun Meteorite; metasomatism; meteorites; microstructure; parent bodies; pentlandite; phase equilibria; pyrrhotite; S-34/S-32; solid solution; stable isotopes; stony meteorites; sulfides; sulfur; TEM data; temperature; textures; thermal history; troilite DO - http://dx.doi.org/10.1111/maps.12648 ER - TY - JOUR T1 - Deposition, accumulation, and alteration of Cl (super -) , NO (sub 3) (super -) , ClO (sub 4) (super -) and ClO (sub 3) (super -) salts in a hyper-arid polar environment; mass balance and isotopic constraints AN - 1803774482; 2016-062760 AB - The salt fraction in permafrost soils/sediments of the McMurdo Dry Valleys (MDV) of Antarctica can be used as a proxy for cold desert geochemical processes and paleoclimate reconstruction. Previous analyses of the salt fraction in MDV permafrost soils have largely been conducted in coastal regions where permafrost soils are variably affected by aqueous processes and mixed inputs from marine and stratospheric sources. We expand upon this work by evaluating permafrost soil/sediments in University Valley, located in the ultraxerous zone where both liquid water transport and marine influences are minimal. We determined the abundances of Cl (super -) , NO (sub 3) (super -) , ClO (sub 4) (super -) and ClO (sub 3) (super -) in dry and ice-cemented soil/sediments, snow and glacier ice, and also characterized Cl (super -) and NO (sub 3) (super -) isotopically. The data are not consistent with salt deposition in a sublimation till, nor with nuclear weapon testing fall-out, and instead point to a dominantly stratospheric source and to varying degrees of post depositional transformation depending on the substrate, from minimal alteration in bare soils to significant alteration (photodegradation and/or volatilization) in snow and glacier ice. Ionic abundances in the dry permafrost layer indicate limited vertical transport under the current climate conditions, likely due to percolation of snowmelt. Subtle changes in ClO (sub 4) (super -) /NO (sub 3) (super -) ratios and NO (sub 3) (super -) isotopic composition with depth and location may reflect both transport related fractionation and depositional history. Low molar ratios of ClO (sub 3) (super -) /ClO (sub 4) (super -) in surface soils compared to deposition and other arid systems suggest significant post depositional loss of ClO (sub 3) (super -) , possibly due to reduction by iron minerals, which may have important implications for oxy-chlorine species on Mars. Salt accumulation varies with distance along the valley and apparent accumulation times based on multiple methods range from approximately 10 to 30 kyr near the glacier to 70-200 kyr near the valley mouth. The relatively young age of the salts and relatively low and homogeneous anion concentrations in the ice-cemented sediments point to either a mechanism of recent salt removal, or to relatively modern permafrost soils (<1 million years). Together, our results show that near surface salts in University Valley serve as an end-member of stratospheric sources not subject to biological processes or extensive remobilization. Abstract Copyright (2016) Elsevier, B.V. JF - Geochimica et Cosmochimica Acta AU - Jackson, Andrew AU - Davila, Alfonso F AU - Boehlke, John Karl AU - Sturchio, Neil C AU - Sevanthi, Ritesh AU - Estrada, Nubia AU - Brundrett, Maeghan AU - Lacelle, Denis AU - McKay, Christopher P AU - Poghosyan, Armen AU - Pollard, Wayne AU - Zacny, Kris Y1 - 2016/06/01/ PY - 2016 DA - 2016 Jun 01 SP - 197 EP - 215 PB - Elsevier, New York, NY VL - 182 SN - 0016-7037, 0016-7037 KW - alteration KW - terrestrial environment KW - permafrost KW - oxygen KW - isotopes KW - halogens KW - mass spectra KW - paleoclimatology KW - stable isotopes KW - iron KW - nitrogen KW - transport KW - mass balance KW - ice KW - sediments KW - percolation KW - spectra KW - chemical composition KW - saline composition KW - soils KW - chlorine KW - University Valley KW - N-15/N-14 KW - isotope ratios KW - arid environment KW - nitrates KW - O-18/O-16 KW - Antarctica KW - ion chromatograms KW - deposition KW - metals KW - chromatograms KW - Cl-37/Cl-35 KW - McMurdo dry valleys KW - Victoria Land KW - reconstruction KW - meltwater KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803774482?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Deposition%2C+accumulation%2C+and+alteration+of+Cl+%28super+-%29+%2C+NO+%28sub+3%29+%28super+-%29+%2C+ClO+%28sub+4%29+%28super+-%29+and+ClO+%28sub+3%29+%28super+-%29+salts+in+a+hyper-arid+polar+environment%3B+mass+balance+and+isotopic+constraints&rft.au=Jackson%2C+Andrew%3BDavila%2C+Alfonso+F%3BBoehlke%2C+John+Karl%3BSturchio%2C+Neil+C%3BSevanthi%2C+Ritesh%3BEstrada%2C+Nubia%3BBrundrett%2C+Maeghan%3BLacelle%2C+Denis%3BMcKay%2C+Christopher+P%3BPoghosyan%2C+Armen%3BPollard%2C+Wayne%3BZacny%2C+Kris&rft.aulast=Jackson&rft.aufirst=Andrew&rft.date=2016-06-01&rft.volume=182&rft.issue=&rft.spage=197&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2016.03.012 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 72 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables, sketch map N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-07-14 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alteration; Antarctica; arid environment; chemical composition; chlorine; chromatograms; Cl-37/Cl-35; deposition; halogens; ice; ion chromatograms; iron; isotope ratios; isotopes; mass balance; mass spectra; McMurdo dry valleys; meltwater; metals; N-15/N-14; nitrates; nitrogen; O-18/O-16; oxygen; paleoclimatology; percolation; permafrost; reconstruction; saline composition; sediments; soils; spectra; stable isotopes; terrestrial environment; transport; University Valley; Victoria Land DO - http://dx.doi.org/10.1016/j.gca.2016.03.012 ER - TY - JOUR T1 - Acceleration of oxygen decline in the tropical Pacific over the past decades by aerosol pollutants AN - 1800396235; 2016-059068 JF - Nature Geoscience AU - Ito, Taka AU - Nens, A AU - Johnson, M S AU - Meskhidze, N AU - Deutsch, C Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 443 EP - 447 PB - Nature Publishing Group, London VL - 9 IS - 6 SN - 1752-0894, 1752-0894 KW - tropical environment KW - ocean circulation KW - sea water KW - oxygen KW - biochemistry KW - sinks KW - solutes KW - pollution KW - solubility KW - iron KW - variations KW - geochemical cycle KW - dissolved oxygen KW - metals KW - marine environment KW - Pacific Ocean KW - aerosols KW - 07:Oceanography KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800396235?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Acceleration+of+oxygen+decline+in+the+tropical+Pacific+over+the+past+decades+by+aerosol+pollutants&rft.au=Ito%2C+Taka%3BNens%2C+A%3BJohnson%2C+M+S%3BMeskhidze%2C+N%3BDeutsch%2C+C&rft.aulast=Ito&rft.aufirst=Taka&rft.date=2016-06-01&rft.volume=9&rft.issue=6&rft.spage=443&rft.isbn=&rft.btitle=&rft.title=Nature+Geoscience&rft.issn=17520894&rft_id=info:doi/10.1038%2FNGEO2717 L2 - http://www.nature.com/ngeo/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 29 N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2016-06-30 N1 - SubjectsTermNotLitGenreText - aerosols; biochemistry; dissolved oxygen; geochemical cycle; iron; marine environment; metals; ocean circulation; oxygen; Pacific Ocean; pollution; sea water; sinks; solubility; solutes; tropical environment; variations DO - http://dx.doi.org/10.1038/NGEO2717 ER - TY - JOUR T1 - Saturn's icy satellites investigated by Cassini-VIMS; IV, Daytime temperature maps AN - 1797539752; 2016-051312 JF - Icarus AU - Filacchione, Gianrico AU - D'Aversa, Emiliano AU - Capaccioni, Fabrizio AU - Clark, Roger N AU - Cruikshank, Dale P AU - Ciarniello, Mauro AU - Cerroni, Priscilla AU - Bellucci, Giancarlo AU - Brown, Robert H AU - Buratti, Bonnie J AU - Nicholson, Philip D AU - Jaumann, Ralf AU - McCord, Thomas B AU - Sotin, Christophe AU - Stephan, Katrin AU - Dalle Ore, Cristina M Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 292 EP - 313 PB - Elsevier, New York, NY VL - 271 SN - 0019-1035, 0019-1035 KW - icy satellites KW - Hyperion Satellite KW - Visual and Infrared Mapping Spectrometer KW - Tethys Satellite KW - mapping KW - temperature KW - infrared spectra KW - giant planets KW - Saturn KW - Cassini-Huygens Mission KW - thermal anomalies KW - thermal emission KW - spectra KW - outer planets KW - diurnal variations KW - satellites KW - Mimas Satellite KW - Rhea Satellite KW - Iapetus Satellite KW - planets KW - planetary rings KW - optical constant KW - geomorphology KW - Enceladus Satellite KW - Dione Satellite KW - reflectance KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1797539752?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+icy+satellites+investigated+by+Cassini-VIMS%3B+IV%2C+Daytime+temperature+maps&rft.au=Filacchione%2C+Gianrico%3BD%27Aversa%2C+Emiliano%3BCapaccioni%2C+Fabrizio%3BClark%2C+Roger+N%3BCruikshank%2C+Dale+P%3BCiarniello%2C+Mauro%3BCerroni%2C+Priscilla%3BBellucci%2C+Giancarlo%3BBrown%2C+Robert+H%3BBuratti%2C+Bonnie+J%3BNicholson%2C+Philip+D%3BJaumann%2C+Ralf%3BMcCord%2C+Thomas+B%3BSotin%2C+Christophe%3BStephan%2C+Katrin%3BDalle+Ore%2C+Cristina+M&rft.aulast=Filacchione&rft.aufirst=Gianrico&rft.date=2016-06-01&rft.volume=271&rft.issue=&rft.spage=292&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.02.019 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 80 N1 - PubXState - NY N1 - Document feature - illus. incl. 8 tables, sketch maps N1 - Last updated - 2016-06-17 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - Cassini-Huygens Mission; Dione Satellite; diurnal variations; Enceladus Satellite; geomorphology; giant planets; Hyperion Satellite; Iapetus Satellite; icy satellites; infrared spectra; mapping; Mimas Satellite; optical constant; outer planets; planetary rings; planets; reflectance; regolith; Rhea Satellite; satellites; Saturn; spectra; temperature; Tethys Satellite; thermal anomalies; thermal emission; Visual and Infrared Mapping Spectrometer DO - http://dx.doi.org/10.1016/j.icarus.2016.02.019 ER - TY - JOUR T1 - The spectrum of Jupiter's Great Red Spot; the case for ammonium hydrosulfide (NH (sub 4) SH) AN - 1797537963; 2016-051309 JF - Icarus AU - Loeffler, Mark J AU - Hudson, Reggie L AU - Chanover, Nancy J AU - Simon, Amy A Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 265 EP - 268 PB - Elsevier, New York, NY VL - 271 SN - 0019-1035, 0019-1035 KW - clouds KW - experimental studies KW - irradiation KW - optical spectra KW - Jupiter KW - atmosphere KW - troposphere KW - Great Red Spot KW - temperature KW - giant planets KW - planets KW - laboratory studies KW - ammonium hydrosulfide KW - Hubble Space Telescope KW - ultraviolet spectra KW - cosmic rays KW - spectra KW - radiolysis KW - outer planets KW - reflectance KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1797537963?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+spectrum+of+Jupiter%27s+Great+Red+Spot%3B+the+case+for+ammonium+hydrosulfide+%28NH+%28sub+4%29+SH%29&rft.au=Loeffler%2C+Mark+J%3BHudson%2C+Reggie+L%3BChanover%2C+Nancy+J%3BSimon%2C+Amy+A&rft.aulast=Loeffler&rft.aufirst=Mark&rft.date=2016-06-01&rft.volume=271&rft.issue=&rft.spage=265&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.02.010 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 34 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2016-06-17 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - ammonium hydrosulfide; atmosphere; clouds; cosmic rays; experimental studies; giant planets; Great Red Spot; Hubble Space Telescope; irradiation; Jupiter; laboratory studies; optical spectra; outer planets; planets; radiolysis; reflectance; spectra; temperature; troposphere; ultraviolet spectra DO - http://dx.doi.org/10.1016/j.icarus.2016.02.010 ER - TY - JOUR T1 - Satellite radiance assimilation using a 3DVAR assimilation system for hurricane Sandy forecasts AN - 1790931951; PQ0003134598 AB - In this article, we present an assimilation impact study for forecasting hurricane Sandy using a threea[euro]dimensional variational data assimilation system (3DVAR). In particular, we employ the 3DVAR component of the Weather Research and Forecasting Model and conduct analysis/forecast cycling experiments for "control" and "radiance" assimilation cases for the hurricane Sandy period. In "control" assimilation experiment, only conventional air and surface observations data are assimilated, while, in "radiance" assimilation experiment, along with the conventional air and surface observations data, the satellite radiance data from the Advanced Microwave Sounding Unit-A (AMSU-A) and the Microwave Humidity Sounder (MHS) sensors are also assimilated. For the radiance assimilation, we employ the community radiative transfer model as the forward operator and perform quality control and bias correction procedure before the radiance data are assimilated. In order to assess the impact of the assimilation experiments, we produce 132-h deterministic forecast starting on 00 UTC October 25, 2012. The results reveal that, in particular, the assimilation of AMSU-A satellite radiances helps to improve the short- to medium-range forecast (up to ~60-h lead time). The forecast skill is degraded in the long-range forecast (beyond 60 h) with the AMSU-A assimilation. JF - Natural Hazards AU - Islam, Tanvir AU - Srivastava, Prashant K AU - Kumar, Dinesh AU - Petropoulos, George P AU - Dai, Qiang AU - Zhuo, Lu AD - Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA, 91109, USA, tanvir.islam@jpl.nasa.gov Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 845 EP - 855 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 82 IS - 2 SN - 0921-030X, 0921-030X KW - Environment Abstracts; Meteorological & Geoastrophysical Abstracts KW - Weather KW - Data collection KW - Sensors KW - Remote sensing KW - Humidity KW - Satellite instrumentation KW - Satellites KW - Data assimilation KW - Hurricane forecasting KW - Hurricanes KW - Radiative transfer models KW - Quality control KW - Radiative transfer KW - Long-range forecasts KW - Medium-range forecasting KW - M2 551.509.1/.5:Forecasting (551.509.1/.5) KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790931951?accountid=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=Natural+Hazards&rft.atitle=Satellite+radiance+assimilation+using+a+3DVAR+assimilation+system+for+hurricane+Sandy+forecasts&rft.au=Islam%2C+Tanvir%3BSrivastava%2C+Prashant+K%3BKumar%2C+Dinesh%3BPetropoulos%2C+George+P%3BDai%2C+Qiang%3BZhuo%2C+Lu&rft.aulast=Islam&rft.aufirst=Tanvir&rft.date=2016-06-01&rft.volume=82&rft.issue=2&rft.spage=845&rft.isbn=&rft.btitle=&rft.title=Natural+Hazards&rft.issn=0921030X&rft_id=info:doi/10.1007%2Fs11069-016-2221-4 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Number of references - 26 N1 - Last updated - 2016-08-03 N1 - SubjectsTermNotLitGenreText - Radiative transfer models; Humidity; Satellite instrumentation; Medium-range forecasting; Long-range forecasts; Data assimilation; Hurricane forecasting; Weather; Hurricanes; Data collection; Sensors; Quality control; Remote sensing; Radiative transfer; Satellites DO - http://dx.doi.org/10.1007/s11069-016-2221-4 ER - TY - JOUR T1 - ICRP Publication 131: Stem cell biology with respect to carcinogenesis aspects of radiological protection. AN - 1789037847; 26956677 AB - Current knowledge of stem cell characteristics, maintenance and renewal, evolution with age, location in 'niches', and radiosensitivity to acute and protracted exposures is reviewed regarding haematopoietic tissue, mammary gland, thyroid, digestive tract, lung, skin, and bone. The identity of the target cells for carcinogenesis continues to point to the more primitive and mostly quiescent stem cell population (able to accumulate the protracted sequence of mutations necessary to result in malignancy), and, in a few tissues, to daughter progenitor cells. Several biological processes could contribute to the protection of stem cells from mutation accumulation: (1) accurate DNA repair; (2) rapid induced death of injured stem cells; (3) retention of the intact parental strand during divisions in some tissues so that mutations are passed to the daughter differentiating cells; and (4) stem cell competition, whereby undamaged stem cells outcompete damaged stem cells for residence in the vital niche. DNA repair mainly operates within a few days of irradiation, while stem cell replications and competition require weeks or many months depending on the tissue type. This foundation is used to provide a biological insight to protection issues including the linear-non-threshold and relative risk models, differences in cancer risk between tissues, dose-rate effects, and changes in the risk of radiation carcinogenesis by age at exposure and attained age. © The International Society for Prosthetics and Orthotics. JF - Annals of the ICRP AU - Hendry, J H AU - Niwa, O AU - Barcellos-Hoff, M H AU - Globus, R K AU - Harrison, J D AU - Martin, M T AU - Seed, T M AU - Shay, J W AU - Story, M D AU - Suzuki, K AU - Yamashita, S AD - Christie Medical Physics and Bioengineering, Christie Hospital NHS Foundation Trust and University of Manchester, Manchester M20 4BX, UK jhendry2002uk@yahoo.com. ; Fukushima Medical University and Radiation Effects Research Foundation, Japan. ; Radiation Oncology and Cell Biology, New York University School of Medicine, USA. ; Bone and Signaling Laboratory, Space Biosciences Research Branch, NASA Ames Research Center, USA. ; Centre for Radiation, Chemical and Environmental Hazards, Health Protection Directorate, Public Health England, UK. ; Laboratoire de Genomique et Radiobiologie de la Kertinopoiese, CEA, France. ; Tech Micro Services Co., USA. ; Radiation Oncology, Simmons Cancer Center, University of Texas, Southwestern Medical Center, USA. ; Radiation Medical Sciences, Atomic Bomb Disease Institute, Nagasaki University, Japan. Y1 - 2016/06// PY - 2016 DA - June 2016 SP - 239 EP - 252 VL - 45 IS - 1 Suppl KW - Index Medicus KW - Stem cells KW - Mutations KW - Carcinogenesis KW - Radiobiology KW - Radiation risk KW - Humans KW - Dose-Response Relationship, Radiation KW - Risk Assessment KW - Radiation Exposure KW - Radiation Protection KW - Neoplasms, Radiation-Induced -- etiology KW - Stem Cells -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789037847?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annals+of+the+ICRP&rft.atitle=ICRP+Publication+131%3A+Stem+cell+biology+with+respect+to+carcinogenesis+aspects+of+radiological+protection.&rft.au=Hendry%2C+J+H%3BNiwa%2C+O%3BBarcellos-Hoff%2C+M+H%3BGlobus%2C+R+K%3BHarrison%2C+J+D%3BMartin%2C+M+T%3BSeed%2C+T+M%3BShay%2C+J+W%3BStory%2C+M+D%3BSuzuki%2C+K%3BYamashita%2C+S&rft.aulast=Hendry&rft.aufirst=J&rft.date=2016-06-01&rft.volume=45&rft.issue=1+Suppl&rft.spage=239&rft.isbn=&rft.btitle=&rft.title=Annals+of+the+ICRP&rft.issn=1872-969X&rft_id=info:doi/10.1177%2F0146645315621849 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2017-01-17 N1 - Date created - 2016-05-12 N1 - Date revised - 2017-01-24 N1 - Last updated - 2017-01-25 DO - http://dx.doi.org/10.1177/0146645315621849 ER - TY - NEWS T1 - Industry Weighs in on Green Aviation Tech AN - 1789317029 JF - UPI Space Daily AU - Jim Schultz for NASA Aeronautics News Y1 - 2016/05/17/ PY - 2016 DA - 2016 May 17 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789317029?accountid=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=Industry+Weighs+in+on+Green+Aviation+Tech&rft.au=Jim+Schultz+for+NASA+Aeronautics+News&rft.aulast=Jim+Schultz+for+NASA+Aeronautics+News&rft.aufirst=&rft.date=2016-05-17&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 - 2016-05-17 ER - TY - JOUR T1 - Fugitive emissions from the Bakken Shale illustrate role of shale production in global ethane shift AN - 1824213313; 2016-083101 AB - Ethane is the second most abundant atmospheric hydrocarbon, exerts a strong influence on tropospheric ozone, and reduces the atmosphere's oxidative capacity. Global observations showed declining ethane abundances from 1984 to 2010, while a regional measurement indicated increasing levels since 2009, with the reason for this subject to speculation. The Bakken shale is an oil and gas-producing formation centered in North Dakota that experienced a rapid increase in production beginning in 2010. We use airborne data collected over the North Dakota portion of the Bakken shale in 2014 to calculate ethane emissions of 0.23 + or - 0.07 (2sigma ) Tg/yr, equivalent to 1-3% of total global sources. Emissions of this magnitude impact air quality via concurrent increases in tropospheric ozone. This recently developed large ethane source from one location illustrates the key role of shale oil and gas production in rising global ethane levels. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Geophysical Research Letters AU - Kort, E A AU - Smith, M L AU - Murray, L T AU - Gvakharia, A AU - Brandt, A R AU - Peischl, J AU - Ryerson, T B AU - Sweeney, C AU - Travis, K Y1 - 2016/05/16/ PY - 2016 DA - 2016 May 16 SP - 4617 EP - 4623 PB - American Geophysical Union, Washington, DC VL - 43 IS - 9 SN - 0094-8276, 0094-8276 KW - United States KW - Bakken Formation KW - shale KW - Paleozoic KW - natural gas KW - aliphatic hydrocarbons KW - petroleum KW - ethane KW - alkanes KW - production KW - environmental effects KW - North Dakota KW - organic compounds KW - sedimentary rocks KW - upper Paleozoic KW - hydrocarbons KW - greenhouse gases KW - clastic rocks KW - 29A:Economic geology, geology of energy sources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824213313?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Fugitive+emissions+from+the+Bakken+Shale+illustrate+role+of+shale+production+in+global+ethane+shift&rft.au=Kort%2C+E+A%3BSmith%2C+M+L%3BMurray%2C+L+T%3BGvakharia%2C+A%3BBrandt%2C+A+R%3BPeischl%2C+J%3BRyerson%2C+T+B%3BSweeney%2C+C%3BTravis%2C+K&rft.aulast=Kort&rft.aufirst=E&rft.date=2016-05-16&rft.volume=43&rft.issue=9&rft.spage=4617&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2016GL068703 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 47 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - Last updated - 2016-09-29 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; Bakken Formation; clastic rocks; environmental effects; ethane; greenhouse gases; hydrocarbons; natural gas; North Dakota; organic compounds; Paleozoic; petroleum; production; sedimentary rocks; shale; United States; upper Paleozoic DO - http://dx.doi.org/10.1002/2016GL068703 ER - TY - JOUR T1 - Pancreaticopericardial fistula: a rare complication of chronic pancreatitis AN - 1790896995 AB - Pancreaticopericardial fistula (PPF) is an extremely rare clinical problem encountered in patients with chronic pancreatitis. The diagnosis should be suspected if a patient presents with pericardial effusion on a background of chronic pancreatitis. Significantly raised amylase in the pericardial fluid offers an important clue for the diagnosis. CT is the initial imaging modality to look for pancreatic and pericardial changes. The therapeutic options include medical, endoscopic or surgical interventions. Medical and endoscopic therapies are the preferred modes of treatment while surgery is reserved for those who fail these measures. JF - BMJ Case Reports AU - Nasa, Mukesh AU - Patil, Gaurav AU - Choudhary, Narendra Singh AU - Puri, Rajesh Y1 - 2016/05/16/ PY - 2016 DA - 2016 May 16 CY - London PB - BMJ Publishing Group LTD VL - 2016 KW - Medical Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790896995?accountid=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=BMJ+Case+Reports&rft.atitle=Pancreaticopericardial+fistula%3A+a+rare+complication+of+chronic+pancreatitis&rft.au=Nasa%2C+Mukesh%3BPatil%2C+Gaurav%3BChoudhary%2C+Narendra+Singh%3BPuri%2C+Rajesh&rft.aulast=Nasa&rft.aufirst=Mukesh&rft.date=2016-05-16&rft.volume=2016&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=BMJ+Case+Reports&rft.issn=&rft_id=info:doi/10.1136%2Fbcr-2016-215163 LA - English DB - ProQuest Central N1 - Copyright - Copyright: 2016 2016 BMJ Publishing Group Ltd N1 - Last updated - 2016-05-28 DO - http://dx.doi.org/10.1136/bcr-2016-215163 ER - TY - JOUR T1 - (super 13) C and (super 15) N fractionation of CH (sub 4) /N (sub 2) mixtures during photochemical aerosol formation; relevance to Titan AN - 1789754299; 2016-042977 JF - Icarus AU - Sebree, Joshua A AU - Stern, Jennifer C AU - Mandt, Kathleen E AU - Domagal-Goldman, Shawn D AU - Trainer, Melissa G Y1 - 2016/05/15/ PY - 2016 DA - 2016 May 15 SP - 421 EP - 428 PB - Elsevier, New York, NY VL - 270 SN - 0019-1035, 0019-1035 KW - tholins KW - isotope fractionation KW - icy satellites KW - irradiation KW - isotopes KW - aliphatic hydrocarbons KW - mass spectra KW - stable isotopes KW - nitrogen KW - laboratory studies KW - mixing KW - carbon KW - Titan Satellite KW - spectra KW - satellites KW - experimental studies KW - diffusion KW - N-15/N-14 KW - methane KW - condensation KW - isotope ratios KW - C-13/C-12 KW - photochemistry KW - atmosphere KW - alkanes KW - organic compounds KW - natural analogs KW - hydrocarbons KW - aerosols KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789754299?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=%28super+13%29+C+and+%28super+15%29+N+fractionation+of+CH+%28sub+4%29+%2FN+%28sub+2%29+mixtures+during+photochemical+aerosol+formation%3B+relevance+to+Titan&rft.au=Sebree%2C+Joshua+A%3BStern%2C+Jennifer+C%3BMandt%2C+Kathleen+E%3BDomagal-Goldman%2C+Shawn+D%3BTrainer%2C+Melissa+G&rft.aulast=Sebree&rft.aufirst=Joshua&rft.date=2016-05-15&rft.volume=270&rft.issue=&rft.spage=421&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.04.016 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 36 N1 - PubXState - NY N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2016-05-19 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - aerosols; aliphatic hydrocarbons; alkanes; atmosphere; C-13/C-12; carbon; condensation; diffusion; experimental studies; hydrocarbons; icy satellites; irradiation; isotope fractionation; isotope ratios; isotopes; laboratory studies; mass spectra; methane; mixing; N-15/N-14; natural analogs; nitrogen; organic compounds; photochemistry; satellites; spectra; stable isotopes; tholins; Titan Satellite DO - http://dx.doi.org/10.1016/j.icarus.2015.04.016 ER - TY - JOUR T1 - Vertical structure and optical properties of Titan's aerosols from radiance measurements made inside and outside the atmosphere AN - 1789753811; 2016-042975 JF - Icarus AU - Doose, Lyn R AU - Karkoschka, Erich AU - Tomasko, Martin G AU - Anderson, Carrie M Y1 - 2016/05/15/ PY - 2016 DA - 2016 May 15 SP - 355 EP - 375 PB - Elsevier, New York, NY VL - 270 SN - 0019-1035, 0019-1035 KW - Descent Imager/Spectral Radiometer KW - albedo KW - icy satellites KW - imagery KW - methane KW - altitude KW - aliphatic hydrocarbons KW - atmosphere KW - alkanes KW - geometry KW - wavelength KW - models KW - organic compounds KW - Cassini-Huygens Mission KW - optical properties KW - hydrocarbons KW - Titan Satellite KW - aerosols KW - satellites KW - radiative transfer KW - optical depth KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789753811?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Vertical+structure+and+optical+properties+of+Titan%27s+aerosols+from+radiance+measurements+made+inside+and+outside+the+atmosphere&rft.au=Doose%2C+Lyn+R%3BKarkoschka%2C+Erich%3BTomasko%2C+Martin+G%3BAnderson%2C+Carrie+M&rft.aulast=Doose&rft.aufirst=Lyn&rft.date=2016-05-15&rft.volume=270&rft.issue=&rft.spage=355&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.09.039 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 40 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-05-19 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - aerosols; albedo; aliphatic hydrocarbons; alkanes; altitude; atmosphere; Cassini-Huygens Mission; Descent Imager/Spectral Radiometer; geometry; hydrocarbons; icy satellites; imagery; methane; models; optical depth; optical properties; organic compounds; radiative transfer; satellites; Titan Satellite; wavelength DO - http://dx.doi.org/10.1016/j.icarus.2015.09.039 ER - TY - JOUR T1 - Alluvial fan morphology, distribution and formation on Titan AN - 1789753624; 2016-042969 JF - Icarus AU - Birch, Sam P D AU - Hayes, Alexander G AU - Howard, Alan D AU - Moore, J M AU - Radebaugh, Jani Y1 - 2016/05/15/ PY - 2016 DA - 2016 May 15 SP - 238 EP - 247 PB - Elsevier, New York, NY VL - 270 SN - 0019-1035, 0019-1035 KW - bedload KW - icy satellites KW - general circulation models KW - polar regions KW - stream transport KW - equatorial region KW - sediment transport KW - atmospheric precipitation KW - distribution KW - morphology KW - Cassini-Huygens Mission KW - transport KW - SAR KW - coarse-grained materials KW - alluvial fans KW - drainage basins KW - Titan Satellite KW - latitude KW - wind transport KW - satellites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789753624?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Alluvial+fan+morphology%2C+distribution+and+formation+on+Titan&rft.au=Birch%2C+Sam+P+D%3BHayes%2C+Alexander+G%3BHoward%2C+Alan+D%3BMoore%2C+J+M%3BRadebaugh%2C+Jani&rft.aulast=Birch&rft.aufirst=Sam+P&rft.date=2016-05-15&rft.volume=270&rft.issue=&rft.spage=238&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.02.013 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 72 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2016-05-19 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - alluvial fans; atmospheric precipitation; bedload; Cassini-Huygens Mission; coarse-grained materials; distribution; drainage basins; equatorial region; general circulation models; icy satellites; latitude; morphology; polar regions; SAR; satellites; sediment transport; stream transport; Titan Satellite; transport; wind transport DO - http://dx.doi.org/10.1016/j.icarus.2016.02.013 ER - TY - JOUR T1 - Formation of gravel pavements during fluvial erosion as an explanation for persistence of ancient cratered terrain on Titan and Mars AN - 1789752826; 2016-042961 JF - Icarus AU - Howard, Alan D AU - Breton, Sylvain AU - Moore, Jeffrey M Y1 - 2016/05/15/ PY - 2016 DA - 2016 May 15 SP - 100 EP - 113 PB - Elsevier, New York, NY VL - 270 SN - 0019-1035, 0019-1035 KW - icy satellites KW - impact features KW - erosion KW - Mars KW - erosion rates KW - physical weathering KW - gravel KW - transport KW - coarse-grained materials KW - gravel-bed streams KW - sediments KW - Titan Satellite KW - satellites KW - sediment transport KW - clastic sediments KW - grain size KW - channels KW - water erosion KW - impacts KW - weathering KW - terrestrial planets KW - planets KW - fluvial features KW - terrestrial comparison KW - streams KW - impact craters KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789752826?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Formation+of+gravel+pavements+during+fluvial+erosion+as+an+explanation+for+persistence+of+ancient+cratered+terrain+on+Titan+and+Mars&rft.au=Howard%2C+Alan+D%3BBreton%2C+Sylvain%3BMoore%2C+Jeffrey+M&rft.aulast=Howard&rft.aufirst=Alan&rft.date=2016-05-15&rft.volume=270&rft.issue=&rft.spage=100&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.05.034 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 115 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Includes appendix N1 - Last updated - 2016-05-19 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - channels; clastic sediments; coarse-grained materials; erosion; erosion rates; fluvial features; grain size; gravel; gravel-bed streams; icy satellites; impact craters; impact features; impacts; Mars; physical weathering; planets; regolith; satellites; sediment transport; sediments; streams; terrestrial comparison; terrestrial planets; Titan Satellite; transport; water erosion; weathering DO - http://dx.doi.org/10.1016/j.icarus.2015.05.034 ER - TY - JOUR T1 - Temperate Earth-sized planets transiting a nearby ultracool dwarf star AN - 1800392286; 2016-056575 JF - Nature (London) AU - Gillon, Michael AU - Jehin, Emmanuel AU - Lederer, Susan M AU - Delrez, Laetitia AU - de Wit, Julien AU - Burdanov, Artem AU - van Grootel, Valerie AU - Burgasser, Adam J AU - Triaud, Amaury H M J AU - Opitom, Cyrielle AU - Demory, Brice-Olivier AU - Sahu, Devendra K AU - Gagliuffi, Daniella Bardalez AU - Magain, Pierre AU - Queloz, Didier Y1 - 2016/05/12/ PY - 2016 DA - 2016 May 12 SP - 221 EP - 224 PB - Macmillan Journals, London VL - 533 IS - 7602 SN - 0028-0836, 0028-0836 KW - irradiation KW - extrasolar planets KW - TRAPPIST Program KW - orbits KW - planetesimals KW - protoplanetary disk KW - size KW - brightness KW - planets KW - habitability KW - stars KW - terrestrial comparison KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800392286?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Temperate+Earth-sized+planets+transiting+a+nearby+ultracool+dwarf+star&rft.au=Gillon%2C+Michael%3BJehin%2C+Emmanuel%3BLederer%2C+Susan+M%3BDelrez%2C+Laetitia%3Bde+Wit%2C+Julien%3BBurdanov%2C+Artem%3Bvan+Grootel%2C+Valerie%3BBurgasser%2C+Adam+J%3BTriaud%2C+Amaury+H+M+J%3BOpitom%2C+Cyrielle%3BDemory%2C+Brice-Olivier%3BSahu%2C+Devendra+K%3BGagliuffi%2C+Daniella+Bardalez%3BMagain%2C+Pierre%3BQueloz%2C+Didier&rft.aulast=Gillon&rft.aufirst=Michael&rft.date=2016-05-12&rft.volume=533&rft.issue=7602&rft.spage=221&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2Fnature17448 L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 30 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-06-30 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - brightness; extrasolar planets; habitability; irradiation; orbits; planetesimals; planets; protoplanetary disk; size; stars; terrestrial comparison; TRAPPIST Program DO - http://dx.doi.org/10.1038/nature17448 ER - TY - NEWS T1 - NASA Helps Forecast Zika Risk AN - 1787489718 JF - UPI Space Daily AU - Molly Porter for NASA Earth News Y1 - 2016/05/09/ PY - 2016 DA - 2016 May 09 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1787489718?accountid=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+Helps+Forecast+Zika+Risk&rft.au=Molly+Porter+for+NASA+Earth+News&rft.aulast=Molly+Porter+for+NASA+Earth+News&rft.aufirst=&rft.date=2016-05-09&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 - 2016-05-09 ER - TY - JOUR T1 - Assimilation of gridded terrestrial water storage observations from GRACE into a land surface model AN - 1832728298; 2016-092607 AB - Observations of terrestrial water storage (TWS) from the Gravity Recovery and Climate Experiment (GRACE) satellite mission have a coarse resolution in time (monthly) and space (roughly 150,000 km (super 2) at midlatitudes) and vertically integrate all water storage components over land, including soil moisture and groundwater. Data assimilation can be used to horizontally downscale and vertically partition GRACE-TWS observations. This work proposes a variant of existing ensemble-based GRACE-TWS data assimilation schemes. The new algorithm differs in how the analysis increments are computed and applied. Existing schemes correlate the uncertainty in the modeled monthly TWS estimates with errors in the soil moisture profile state variables at a single instant in the month and then apply the increment either at the end of the month or gradually throughout the month. The proposed new scheme first computes increments for each day of the month and then applies the average of those increments at the beginning of the month. The new scheme therefore better reflects submonthly variations in TWS errors. The new and existing schemes are investigated here using gridded GRACE-TWS observations. The assimilation results are validated at the monthly time scale, using in situ measurements of groundwater depth and soil moisture across the U.S. The new assimilation scheme yields improved (although not in a statistically significant sense) skill metrics for groundwater compared to the open-loop (no assimilation) simulations and compared to the existing assimilation schemes. A smaller impact is seen for surface and root-zone soil moisture, which have a shorter memory and receive smaller increments from TWS assimilation than groundwater. These results motivate future efforts to combine GRACE-TWS observations with observations that are more sensitive to surface soil moisture, such as L-band brightness temperature observations from Soil Moisture Ocean Salinity (SMOS) or Soil Moisture Active Passive (SMAP). Finally, we demonstrate that the scaling parameters that are applied to the GRACE observations prior to assimilation should be consistent with the land surface model that is used within the assimilation system. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Water Resources Research AU - Girotto, Manuela AU - de Lannoy, Gabrielle J M AU - Reichle, Rolf H AU - Rodell, Matthew Y1 - 2016/05// PY - 2016 DA - May 2016 SP - 4164 EP - 4183 PB - American Geophysical Union, Washington, DC VL - 52 IS - 5 SN - 0043-1397, 0043-1397 KW - United States KW - soils KW - hydrology KW - water storage KW - moisture KW - data processing KW - unsaturated zone KW - GRACE KW - equations KW - satellite methods KW - observations KW - ground water KW - mathematical methods KW - ground-surface temperature KW - remote sensing KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832728298?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Assimilation+of+gridded+terrestrial+water+storage+observations+from+GRACE+into+a+land+surface+model&rft.au=Girotto%2C+Manuela%3Bde+Lannoy%2C+Gabrielle+J+M%3BReichle%2C+Rolf+H%3BRodell%2C+Matthew&rft.aulast=Girotto&rft.aufirst=Manuela&rft.date=2016-05-01&rft.volume=52&rft.issue=5&rft.spage=4164&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1002%2F2015WR018417 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 59 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2016-10-27 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - data processing; equations; GRACE; ground water; ground-surface temperature; hydrology; mathematical methods; moisture; observations; remote sensing; satellite methods; soils; United States; unsaturated zone; water storage DO - http://dx.doi.org/10.1002/2015WR018417 ER - TY - JOUR T1 - Unlocking the full potential of Earth observation during the 2015 Texas flood disaster AN - 1832727742; 2016-092557 AB - Intense rainfall during late April and early May 2015 in Texas and Oklahoma led to widespread and sustained flooding in several river basins. Texas state agencies relevant to emergency response were activated when severe weather then ensued for 6 weeks from 8 May until 19 June following Tropical Storm Bill. An international team of scientists and flood response experts assembled and collaborated with decision-making authorities for user-driven high-resolution satellite acquisitions over the most critical areas; while experimental automated flood mapping techniques provided daily ongoing monitoring. This allowed mapping of flood inundation from an unprecedented number of spaceborne and airborne images. In fact, a total of 27,174 images have been ingested to the USGS Hazards Data Distribution System (HDDS) Explorer, except for the SAR images used. Based on the Texas flood use case, we describe the success of this effort as well as the limitations in fulfilling the needs of the decision-makers, and reflect upon these. In order to unlock the full potential for Earth observation data in flood disaster response, we suggest in a call for action (i) stronger collaboration from the onset between agencies, product developers, and decision-makers; (ii) quantification of uncertainties when combining data from different sources in order to augment information content; (iii) include a default role for the end-user in satellite acquisition planning; and (iv) proactive assimilation of methodologies and tools into the mandated agencies. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Water Resources Research AU - Schumann, G J P AU - Frye, S AU - Wells, G AU - Adler, R AU - Brakenridge, R AU - Bolten, J AU - Murray, J AU - Slayback, D AU - Policelli, F AU - Kirschbaum, D AU - Wu, H AU - Cappelaere, P AU - Howard, T AU - Flamig, Z AU - Clark, R AU - Stough, T AU - Chini, M AU - Matgen, P AU - Green, D AU - Jones, B Y1 - 2016/05// PY - 2016 DA - May 2016 SP - 3288 EP - 3293 PB - American Geophysical Union, Washington, DC VL - 52 IS - 5 SN - 0043-1397, 0043-1397 KW - United States KW - Tropical Storm Bill KW - imagery KW - risk management KW - geologic hazards KW - Texas KW - decision-making KW - atmospheric precipitation KW - satellite methods KW - Oklahoma KW - SAR KW - natural hazards KW - floods KW - risk assessment KW - storms KW - uncertainty KW - rain KW - remote sensing KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832727742?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Unlocking+the+full+potential+of+Earth+observation+during+the+2015+Texas+flood+disaster&rft.au=Schumann%2C+G+J+P%3BFrye%2C+S%3BWells%2C+G%3BAdler%2C+R%3BBrakenridge%2C+R%3BBolten%2C+J%3BMurray%2C+J%3BSlayback%2C+D%3BPolicelli%2C+F%3BKirschbaum%2C+D%3BWu%2C+H%3BCappelaere%2C+P%3BHoward%2C+T%3BFlamig%2C+Z%3BClark%2C+R%3BStough%2C+T%3BChini%2C+M%3BMatgen%2C+P%3BGreen%2C+D%3BJones%2C+B&rft.aulast=Schumann&rft.aufirst=G+J&rft.date=2016-05-01&rft.volume=52&rft.issue=5&rft.spage=3288&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1002%2F2015WR018428 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 10 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2016-10-27 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; decision-making; floods; geologic hazards; imagery; natural hazards; Oklahoma; rain; remote sensing; risk assessment; risk management; SAR; satellite methods; storms; Texas; Tropical Storm Bill; uncertainty; United States DO - http://dx.doi.org/10.1002/2015WR018428 ER - TY - JOUR T1 - Erratum to: Groundwater storage changes; present status from GRACE observations AN - 1832608985; 776393-8 JF - Surveys in Geophysics AU - Chen, Jianli AU - Famiglietti, James S AU - Scanlon, Bridget R AU - Rodell, Matthew Y1 - 2016/05// PY - 2016 DA - May 2016 SP - 701 PB - Springer, Dordrecht VL - 37 IS - 3 SN - 0169-3298, 0169-3298 KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832608985?accountid=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=Surveys+in+Geophysics&rft.atitle=Erratum+to%3A+Groundwater+storage+changes%3B+present+status+from+GRACE+observations&rft.au=Chen%2C+Jianli%3BFamiglietti%2C+James+S%3BScanlon%2C+Bridget+R%3BRodell%2C+Matthew&rft.aulast=Chen&rft.aufirst=Jianli&rft.date=2016-05-01&rft.volume=37&rft.issue=3&rft.spage=701&rft.isbn=&rft.btitle=&rft.title=Surveys+in+Geophysics&rft.issn=01693298&rft_id=info:doi/10.1007%2Fs10712-016-9370-6 L2 - http://www.springerlink.com/(xfpu0bn4myxx3njya4gn4s55)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:103000,1 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 supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - SuppNotes - The online version of the original article can be found under doi:10.1007/s10712-015-9332-4. http://dx.doi.org/10.1007/s10712-015-9332-4. The online version of the original article can be found at 10.1007/s10712-015-9332-4 http://dx.doi.org/10.1007/s10712-015-9332-4. N1 - Last updated - 2017-01-24 DO - http://dx.doi.org/10.1007/s10712-016-9370-6 ER - TY - JOUR T1 - Performance benchmarks for a next generation numerical dynamo model AN - 1828850146; 2016-086883 AB - Numerical simulations of the geodynamo have successfully represented many observable characteristics of the geomagnetic field, yielding insight into the fundamental processes that generate magnetic fields in the Earth's core. Because of limited spatial resolution, however, the diffusivities in numerical dynamo models are much larger than those in the Earth's core, and consequently, questions remain about how realistic these models are. The typical strategy used to address this issue has been to continue to increase the resolution of these quasi-laminar models with increasing computational resources, thus pushing them toward more realistic parameter regimes. We assess which methods are most promising for the next generation of supercomputers, which will offer access to O(10 (super 6) ) processor cores for large problems. Here we report performance and accuracy benchmarks from 15 dynamo codes that employ a range of numerical and parallelization methods. Computational performance is assessed on the basis of weak and strong scaling behavior up to 16,384 processor cores. Extrapolations of our weak-scaling results indicate that dynamo codes that employ two-dimensional or three-dimensional domain decompositions can perform efficiently on up to approximately 10 (super 6) processor cores, paving the way for more realistic simulations in the next model generation. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Geochemistry, Geophysics, Geosystems - G3 AU - Matsui, Hiroaki AU - Heien, Eric AU - Aubert, Julien AU - Aurnou, Jonathan M AU - Avery, Margaret AU - Brown, Ben AU - Buffett, Bruce A AU - Busse, Friedrich AU - Christensen, Ulrich R AU - Davies, Christopher J AU - Featherstone, Nicholas AU - Gastine, Thomas AU - Glatzmaier, Gary A AU - Gubbins, David AU - Guermond, Jean-Luc AU - Hayashi, Yoshi-Yuki AU - Hollerbach, Rainer AU - Hwang, Lorraine J AU - Jackson, Andrew AU - Jones, Chris A AU - Jiang, Weiyuan AU - Kellogg, Louise H AU - Kuang, Weijia AU - Landeau, Maylis AU - Marti, Philippe AU - Olson, Peter AU - Ribeiro, Adolfo AU - Sasaki, Youhei AU - Schaeffer, Nathanael AU - Simitev, Radostin D AU - Sheyko, Andrey AU - Silva, Luis AU - Stanley, Sabine AU - Takahashi, Futoshi AU - Takehiro, Shin-ichi AU - Wicht, Johannes AU - Willis, Ashley P Y1 - 2016/05// PY - 2016 DA - May 2016 SP - 1586 EP - 1607 PB - American Geophysical Union and The Geochemical Society VL - 17 IS - 5 KW - interior KW - Earth KW - numerical models KW - three-dimensional models KW - dynamos KW - data processing KW - equations KW - magnetic field KW - two-dimensional models KW - theoretical studies KW - digital simulation KW - theoretical models KW - core KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828850146?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%2C+Geophysics%2C+Geosystems+-+G3&rft.atitle=Performance+benchmarks+for+a+next+generation+numerical+dynamo+model&rft.au=Matsui%2C+Hiroaki%3BHeien%2C+Eric%3BAubert%2C+Julien%3BAurnou%2C+Jonathan+M%3BAvery%2C+Margaret%3BBrown%2C+Ben%3BBuffett%2C+Bruce+A%3BBusse%2C+Friedrich%3BChristensen%2C+Ulrich+R%3BDavies%2C+Christopher+J%3BFeatherstone%2C+Nicholas%3BGastine%2C+Thomas%3BGlatzmaier%2C+Gary+A%3BGubbins%2C+David%3BGuermond%2C+Jean-Luc%3BHayashi%2C+Yoshi-Yuki%3BHollerbach%2C+Rainer%3BHwang%2C+Lorraine+J%3BJackson%2C+Andrew%3BJones%2C+Chris+A%3BJiang%2C+Weiyuan%3BKellogg%2C+Louise+H%3BKuang%2C+Weijia%3BLandeau%2C+Maylis%3BMarti%2C+Philippe%3BOlson%2C+Peter%3BRibeiro%2C+Adolfo%3BSasaki%2C+Youhei%3BSchaeffer%2C+Nathanael%3BSimitev%2C+Radostin+D%3BSheyko%2C+Andrey%3BSilva%2C+Luis%3BStanley%2C+Sabine%3BTakahashi%2C+Futoshi%3BTakehiro%2C+Shin-ichi%3BWicht%2C+Johannes%3BWillis%2C+Ashley+P&rft.aulast=Matsui&rft.aufirst=Hiroaki&rft.date=2016-05-01&rft.volume=17&rft.issue=5&rft.spage=1586&rft.isbn=&rft.btitle=&rft.title=Geochemistry%2C+Geophysics%2C+Geosystems+-+G3&rft.issn=1525-2027&rft_id=info:doi/10.1002%2F2015GC006159 L2 - http://g-cubed.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom | Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - Document feature - illus. incl. tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - core; data processing; digital simulation; dynamos; Earth; equations; interior; magnetic field; numerical models; theoretical models; theoretical studies; three-dimensional models; two-dimensional models DO - http://dx.doi.org/10.1002/2015GC006159 ER - TY - JOUR T1 - Holocene accumulation and ice flow near the West Antarctic ice sheet divide ice core site AN - 1824214338; 2016-085023 AB - The West Antarctic Ice Sheet Divide Core (WDC) provided a high-resolution climate record from near the Ross-Amundsen Divide in Central West Antarctica. In addition, radar-detected internal layers in the vicinity of the WDC site have been dated directly from the ice core to provide spatial variations in the age structure of the region. Using these two data sets together, we first infer a high-resolution Holocene accumulation-rate history from 9.2 kyr of the ice-core timescale and then confirm that this climate history is consistent with internal layers upstream of the core site. Even though the WDC was drilled only 24 km from the modern ice divide, advection of ice from upstream must be taken into account. We evaluate histories of accumulation rate by using a flowband model to generate internal layers that we compare to observed layers. Results show that the centennially averaged accumulation rate was over 20% lower than modern at 9.2 kyr before present (B.P.), increased by 40% from 9.2 to 2.3 kyr B.P., and decreased by at least 10% over the past 2 kyr B.P. to the modern values; these Holocene accumulation-rate changes in Central West Antarctica are larger than changes inferred from East Antarctic ice-core records. Despite significant changes in accumulation rate, throughout the Holocene the regional accumulation pattern has likely remained similar to today, and the ice-divide position has likely remained on average within 5 km of its modern position. Continent-scale ice-sheet models used for reconstructions of West Antarctic ice volume should incorporate this accumulation history. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Earth Surface AU - Koutnik, Michelle R AU - Fudge, T J AU - Conway, Howard AU - Waddington, Edwin D AU - Neumann, Thomas A AU - Cuffey, Kurt M AU - Buizert, Christo AU - Taylor, Kendrick C Y1 - 2016/05// PY - 2016 DA - May 2016 SP - 907 EP - 924 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 5 SN - 2169-9003, 2169-9003 KW - West Antarctica KW - geophysical surveys KW - paleoclimatology KW - Holocene KW - Cenozoic KW - ice KW - West Antarctic ice sheet KW - velocity KW - thickness KW - high-resolution methods KW - ice cores KW - patterns KW - Quaternary KW - geophysical methods KW - radar methods KW - glaciers KW - Ross-Amundsen Divide KW - ice sheets KW - geometry KW - time scales KW - models KW - Antarctic ice sheet KW - Antarctica KW - surveys KW - geophysical profiles KW - reconstruction KW - glacial geology KW - Amundsen Sea KW - Ross Ice Shelf KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824214338?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Earth+Surface&rft.atitle=Holocene+accumulation+and+ice+flow+near+the+West+Antarctic+ice+sheet+divide+ice+core+site&rft.au=Koutnik%2C+Michelle+R%3BFudge%2C+T+J%3BConway%2C+Howard%3BWaddington%2C+Edwin+D%3BNeumann%2C+Thomas+A%3BCuffey%2C+Kurt+M%3BBuizert%2C+Christo%3BTaylor%2C+Kendrick+C&rft.aulast=Koutnik&rft.aufirst=Michelle&rft.date=2016-05-01&rft.volume=121&rft.issue=5&rft.spage=907&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Earth+Surface&rft.issn=21699003&rft_id=info:doi/10.1002%2F2015JF003668 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9011/issues?year=2013 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 70 N1 - PubXState - DC N1 - Document feature - illus. incl. sects., sketch maps N1 - Last updated - 2016-09-29 N1 - SubjectsTermNotLitGenreText - Amundsen Sea; Antarctic ice sheet; Antarctica; Cenozoic; geometry; geophysical methods; geophysical profiles; geophysical surveys; glacial geology; glaciers; high-resolution methods; Holocene; ice; ice cores; ice sheets; models; paleoclimatology; patterns; Quaternary; radar methods; reconstruction; Ross Ice Shelf; Ross-Amundsen Divide; surveys; thickness; time scales; velocity; West Antarctic ice sheet; West Antarctica DO - http://dx.doi.org/10.1002/2015JF003668 ER - TY - JOUR T1 - Extending "Deep Blue" aerosol retrieval coverage to cases of absorbing aerosols above clouds: Sensitivity analysis and first case studies AN - 1808721548; PQ0003230515 AB - Cases of absorbing aerosols above clouds (AACs), such as smoke or mineral dust, are omitted from most routinely processed space-based aerosol optical depth (AOD) data products, including those from the Moderate Resolution Imaging Spectroradiometer (MODIS). This study presents a sensitivity analysis and preliminary algorithm to retrieve above-cloud AOD and liquid cloud optical depth (COD) for AAC cases from MODIS or similar sensors, for incorporation into a future version of the "Deep Blue" AOD data product. Detailed retrieval simulations suggest that these sensors should be able to determine AAC AOD with a typical level of uncertainty 25-50% (with lower uncertainties for more strongly absorbing aerosol types) and COD with an uncertainty 10-20%, if an appropriate aerosol optical model is known beforehand. Errors are larger, particularly if the aerosols are only weakly absorbing, if the aerosol optical properties are not known, and the appropriate model to use must also be retrieved. Actual retrieval errors are also compared to uncertainty envelopes obtained through the optimal estimation (OE) technique; OE-based uncertainties are found to be generally reasonable for COD but larger than actual retrieval errors for AOD, due in part to difficulties in quantifying the degree of spectral correlation of forward model error. The algorithm is also applied to two MODIS scenes (one smoke and one dust) for which near-coincident NASA Ames Airborne Tracking Sun photometer (AATS) data were available to use as a ground truth AOD data source, and found to be in good agreement, demonstrating the validity of the technique with real observations. Key Points * Absorbing aerosols above clouds are an important data gap * Retrieval algorithm developed for MODIS-like sensors * Validation presented using two case studies with airborne data JF - Journal of Geophysical Research: Atmospheres AU - Sayer, A M AU - Hsu, N C AU - Bettenhausen, C AU - Lee, J AU - Redemann, J AU - Schmid, B AU - Shinozuka, Y AD - NASA Goddard Space Flight Center, Greenbelt, Maryland, USA. Y1 - 2016/05// PY - 2016 DA - May 2016 SP - 4830 EP - 4854 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 121 IS - 9 SN - 2169-897X, 2169-897X KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Sensors KW - Algorithms KW - Correlations KW - Dust KW - Fish (cod family) KW - MODIS (Moderate Resolution Imaging Spectrometer) KW - Modelling KW - Atmospheric particulates KW - Aerosols KW - Mathematical models KW - Case Studies KW - Errors KW - Dusts KW - Tracking KW - Model Studies KW - Clouds KW - Smoke KW - Satellite data KW - Sensitivity analysis KW - Optical properties of aerosols KW - Numerical simulations KW - Cloud optical depth KW - Photometers KW - Optical depth of aerosols KW - Eolian dust KW - Q2 09243:Structure, mechanics and thermodynamics KW - M2 551.593:Optical (551.593) KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808721548?accountid=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+Geophysical+Research%3A+Atmospheres&rft.atitle=Extending+%22Deep+Blue%22+aerosol+retrieval+coverage+to+cases+of+absorbing+aerosols+above+clouds%3A+Sensitivity+analysis+and+first+case+studies&rft.au=Sayer%2C+A+M%3BHsu%2C+N+C%3BBettenhausen%2C+C%3BLee%2C+J%3BRedemann%2C+J%3BSchmid%2C+B%3BShinozuka%2C+Y&rft.aulast=Sayer&rft.aufirst=A&rft.date=2016-05-01&rft.volume=121&rft.issue=9&rft.spage=4830&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2015JD024729 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Smoke; Atmospheric particulates; Aerosols; Mathematical models; Sensors; Tracking; Dust; Eolian dust; Modelling; Clouds; Satellite data; Numerical simulations; Optical properties of aerosols; Sensitivity analysis; Cloud optical depth; Correlations; Photometers; Algorithms; Optical depth of aerosols; MODIS (Moderate Resolution Imaging Spectrometer); Case Studies; Fish (cod family); Errors; Dusts; Model Studies DO - http://dx.doi.org/10.1002/2015JD024729 ER - TY - JOUR T1 - Sensitivity of Amazonian TOA flux diurnal cycle composite monthly variability to choice of reanalysis AN - 1808718916; PQ0003230550 AB - Amazonian deep convection experiences a strong diurnal cycle driven by the cycle in surface sensible heat flux, which contributes to a significant diurnal cycle in the top of the atmosphere (TOA) radiative flux. Even when accounting for seasonal variability, the TOA flux diurnal cycle varies significantly on the monthly timescale. Previous work shows evidence supporting a connection between variability in the convective and radiative cycles, likely modulated by variability in monthly atmospheric state (e.g., convective instability). The hypothesized relationships are further investigated with regression analysis of the radiative diurnal cycle and atmospheric state using additional meteorological variables representing convective instability and upper tropospheric humidity. The results are recalculated with three different reanalyses to test the reliability of the results. The radiative diurnal cycle sensitivity to upper tropospheric humidity is about equal in magnitude to that of convective instability. In addition, the results are recalculated with the data subdivided into the wet and dry seasons. Overall, clear-sky radiative effects have a dominant role in radiative diurnal cycle variability during the dry season. Because of this, even in a convectively active region, the clear-sky radiative effects must be accounted for in order to fully explain the monthly variability in diurnal cycle. Finally, while there is general agreement between the different reanalysis-based results when examining the full data time domain (without regard to time of year), there are significant disagreements when the data are divided into wet and dry seasons. The questionable reliability of reanalysis data is a major limitation. Key Points * Upper tropospheric humidity alters the TOA flux diurnal cycle as strongly as vertical instability * Clear-sky effects control TOA flux diurnal amplitude, while cloud forcing controls timing * Disagreement in reanalysis monthly variability greatly affects assessment of TOA flux sensitivity JF - Journal of Geophysical Research: Atmospheres AU - Dodson, JBrant AU - Taylor, Patrick C AD - NASA Langley Research Center, Hampton, Virginia, USA. Y1 - 2016/05// PY - 2016 DA - May 2016 SP - 4404 EP - 4428 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 121 IS - 9 SN - 2169-897X, 2169-897X KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Convection KW - Regression Analysis KW - Variability KW - Sensible heat transfer KW - Convection development KW - Data reanalysis KW - Assessments KW - Regression analysis KW - Seasonal variability KW - Sensible heat flux KW - Timing KW - Heat flux KW - Atmospheric variability KW - Humidity KW - Troposphere KW - Convective instability KW - Clouds KW - Upper tropospheric humidity KW - Heat KW - Convective activity KW - Atmospheric forcing KW - Dry season KW - Fluctuations KW - Instability KW - Q2 09243:Structure, mechanics and thermodynamics KW - M2 551.558:Vertical Air Motion (551.558) KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808718916?accountid=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+Geophysical+Research%3A+Atmospheres&rft.atitle=Sensitivity+of+Amazonian+TOA+flux+diurnal+cycle+composite+monthly+variability+to+choice+of+reanalysis&rft.au=Dodson%2C+JBrant%3BTaylor%2C+Patrick+C&rft.aulast=Dodson&rft.aufirst=JBrant&rft.date=2016-05-01&rft.volume=121&rft.issue=9&rft.spage=4404&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2015JD024567 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Convection; Atmospheric forcing; Sensible heat transfer; Troposphere; Humidity; Dry season; Heat flux; Atmospheric variability; Convective instability; Convection development; Data reanalysis; Clouds; Upper tropospheric humidity; Convective activity; Regression analysis; Seasonal variability; Sensible heat flux; Instability; Timing; Regression Analysis; Variability; Assessments; Heat; Fluctuations DO - http://dx.doi.org/10.1002/2015JD024567 ER - TY - JOUR T1 - Estimating nocturnal opaque ice cloud optical depth from MODIS multispectral infrared radiances using a neural network method AN - 1808716699; PQ0003230537 AB - Retrieval of ice cloud properties using IR measurements has a distinct advantage over the visible and near-IR techniques by providing consistent monitoring regardless of solar illumination conditions. Historically, the IR bands at 3.7, 6.7, 11.0, and 12.0 mu m have been used to infer ice cloud parameters by various methods, but the reliable retrieval of ice cloud optical depth tau is limited to nonopaque cirrus with tau <8. The Ice Cloud Optical Depth from Infrared using a Neural network (ICODIN) method is developed in this paper by training Moderate Resolution Imaging Spectroradiometer (MODIS) radiances at 3.7, 6.7, 11.0, and 12.0 mu m against CloudSat-estimated tau during the nighttime using 2months of matched global data from 2007. An independent data set comprising observations from the same 2months of 2008 was used to validate the ICODIN. One 4-channel and three 3-channel versions of the ICODIN were tested. The training and validation results show that IR channels can be used to estimate ice cloud tau up to 150 with correlations above 78% and 69% for all clouds and only opaque ice clouds, respectively. However, tau for the deepest clouds is still underestimated in many instances. The corresponding RMS differences relative to CloudSat are ~100 and ~72%. If the opaque clouds are properly identified with the IR methods, the RMS differences in the retrieved optical depths are ~62%. The 3.7 mu m channel appears to be most sensitive to optical depth changes but is constrained by poor precision at low temperatures. A method for estimating total optical depth is explored for estimation of cloud water path in the future. Factors affecting the uncertainties and potential improvements are discussed. With improved techniques for discriminating between opaque and semitransparent ice clouds, the method can ultimately improve cloud property monitoring over the entire diurnal cycle. Key Points * Information about nocturnal opaque ice cloud optical depth available in multispectral infrared data * Neural network algorithm developed to retrieve ice cloud optical depth from nighttime imager data * Total cloud optical depth can be estimated from neural net ice COD using a parameterization JF - Journal of Geophysical Research: Atmospheres AU - Minnis, Patrick AU - Hong, Gang AU - Sun-Mack, Szedung AU - Smith, William L AU - Chen, Yan AU - Miller, Steven D AD - NASA Langley Research Center, Hampton, Virginia, USA. Y1 - 2016/05// PY - 2016 DA - May 2016 SP - 4907 EP - 4932 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 121 IS - 9 SN - 2169-897X, 2169-897X KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Correlations KW - Algorithms KW - Low temperatures KW - Neural Networks KW - Low temperature KW - CLOUDSAT KW - Fish (cod family) KW - Cloud properties KW - MODIS (Moderate Resolution Imaging Spectrometer) KW - Ice clouds KW - Biological surveys KW - Mathematical models KW - Training KW - Neural networks KW - Estimating KW - Water content of clouds KW - Imaging techniques KW - Methodology KW - Channels KW - Clouds KW - Satellite data KW - Illumination KW - Precision KW - Cloud optical depth KW - Monitoring KW - Q2 09243:Structure, mechanics and thermodynamics KW - SW 7010:Education - extramural KW - M2 551.576:Clouds (551.576) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808716699?accountid=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+Geophysical+Research%3A+Atmospheres&rft.atitle=Estimating+nocturnal+opaque+ice+cloud+optical+depth+from+MODIS+multispectral+infrared+radiances+using+a+neural+network+method&rft.au=Minnis%2C+Patrick%3BHong%2C+Gang%3BSun-Mack%2C+Szedung%3BSmith%2C+William+L%3BChen%2C+Yan%3BMiller%2C+Steven+D&rft.aulast=Minnis&rft.aufirst=Patrick&rft.date=2016-05-01&rft.volume=121&rft.issue=9&rft.spage=4907&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2015JD024456 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Biological surveys; Low temperature; Mathematical models; Imaging techniques; Methodology; Neural networks; Water content of clouds; Algorithms; Correlations; Clouds; Low temperatures; Satellite data; Illumination; CLOUDSAT; Cloud optical depth; Ice clouds; MODIS (Moderate Resolution Imaging Spectrometer); Cloud properties; Channels; Neural Networks; Training; Estimating; Precision; Fish (cod family); Monitoring DO - http://dx.doi.org/10.1002/2015JD024456 ER - TY - JOUR T1 - The spectroscopic foundation of radiative forcing of climate by carbon dioxide AN - 1808704849; PQ0003308439 AB - The radiative forcing (RF) of carbon dioxide (CO sub(2)) is the leading contribution to climate change from anthropogenic activities. Calculating CO sub(2) RF requires detailed knowledge of spectral line parameters for thousands of infrared absorption lines. A reliable spectroscopic characterization of CO sub(2) forcing is critical to scientific and policy assessments of present climate and climate change. Our results show that CO sub(2) RF in a variety of atmospheres is remarkably insensitive to known uncertainties in the three main CO sub(2) spectroscopic parameters: the line shapes, line strengths, and half widths. We specifically examine uncertainty in RF due to line mixing as this process is critical in determining line shapes in the far wings of CO sub(2) absorption lines. RF computed with a Voigt line shape is also examined. Overall, the spectroscopic uncertainty in present-day CO sub(2) RF is less than 1%, indicating a robust foundation in our understanding of how rising CO sub(2) warms the climate system. Key Points * Line mixing and line shape uncertainties contribute<0.7% error to CO sub(2) radiative forcing * Line strength and half-width uncertainties contribute<0.3% error to CO sub(2) radiative forcing * Overall spectroscopic uncertainty in CO sub(2) radiative forcing is<1% JF - Geophysical Research Letters AU - Mlynczak, Martin G AU - Daniels, Taumi S AU - Kratz, David P AU - Feldman, Daniel R AU - Collins, William D AU - Mlawer, Eli J AU - Alvarado, Matthew J AU - Lawler, James E AU - Anderson, L W AU - Fahey, David W AU - Hunt, Linda A AU - Mast, Jeffrey C AD - NASA Langley Research Center, Hampton, Virginia, USA. Y1 - 2016/05// PY - 2016 DA - May 2016 SP - 5318 EP - 5325 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 43 IS - 10 SN - 0094-8276, 0094-8276 KW - Sustainability Science Abstracts; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Policies KW - Public policy and climate KW - Climate change KW - Wings KW - Anthropogenic factors KW - Radiative forcing KW - Infrared absorption KW - Absorption KW - Carbon dioxide KW - M2 551.583:Variations (551.583) KW - M3 1010:Issues in Sustainable Development KW - O 4080:Pollution - Control and Prevention KW - Q2 09182:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808704849?accountid=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+spectroscopic+foundation+of+radiative+forcing+of+climate+by+carbon+dioxide&rft.au=Mlynczak%2C+Martin+G%3BDaniels%2C+Taumi+S%3BKratz%2C+David+P%3BFeldman%2C+Daniel+R%3BCollins%2C+William+D%3BMlawer%2C+Eli+J%3BAlvarado%2C+Matthew+J%3BLawler%2C+James+E%3BAnderson%2C+L+W%3BFahey%2C+David+W%3BHunt%2C+Linda+A%3BMast%2C+Jeffrey+C&rft.aulast=Mlynczak&rft.aufirst=Martin&rft.date=2016-05-01&rft.volume=43&rft.issue=10&rft.spage=5318&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2016GL068837 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Policies; Climate change; Anthropogenic factors; Wings; Carbon dioxide; Infrared absorption; Radiative forcing; Public policy and climate; Absorption DO - http://dx.doi.org/10.1002/2016GL068837 ER - TY - JOUR T1 - The Veritas and Themis asteroid families; 5-14 mu m spectra with the Spitzer Space Telescope AN - 1789753737; 2016-040210 JF - Icarus AU - Landsman, Zoe A AU - Licandro, Javier AU - Campins, Humberto AU - Ziffer, Julie AU - de Pra, Mario AU - Cruikshank, Dale P Y1 - 2016/05/01/ PY - 2016 DA - 2016 May 01 SP - 62 EP - 74 PB - Elsevier, New York, NY VL - 269 SN - 0019-1035, 0019-1035 KW - silicates KW - albedo KW - surface properties KW - near-infrared spectra KW - density KW - Themis asteroid family KW - Spitzer Space Telescope KW - Veritas asteroid family KW - thermal properties KW - emissivity KW - temperature KW - infrared spectra KW - eccentricity KW - aqueous alteration KW - physical properties KW - detection KW - rotation KW - orbital inclination KW - composition KW - thermomechanical properties KW - sheet silicates KW - spectra KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789753737?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Veritas+and+Themis+asteroid+families%3B+5-14+mu+m+spectra+with+the+Spitzer+Space+Telescope&rft.au=Landsman%2C+Zoe+A%3BLicandro%2C+Javier%3BCampins%2C+Humberto%3BZiffer%2C+Julie%3Bde+Pra%2C+Mario%3BCruikshank%2C+Dale+P&rft.aulast=Landsman&rft.aufirst=Zoe&rft.date=2016-05-01&rft.volume=269&rft.issue=&rft.spage=62&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2016.01.008 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 46 N1 - PubXState - NY N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2016-05-19 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - albedo; aqueous alteration; composition; density; detection; eccentricity; emissivity; infrared spectra; near-infrared spectra; orbital inclination; physical properties; regolith; rotation; sheet silicates; silicates; spectra; Spitzer Space Telescope; surface properties; temperature; Themis asteroid family; thermal properties; thermomechanical properties; Veritas asteroid family DO - http://dx.doi.org/10.1016/j.icarus.2016.01.008 ER - TY - JOUR T1 - Characterization of artifacts introduced by the empirical volcano-scan atmospheric correction commonly applied to CRISM and OMEGA near-infrared spectra AN - 1789753452; 2016-040214 JF - Icarus AU - Wiseman, Sandra M AU - Arvidson, R E AU - Wolff, M J AU - Smith, M D AU - Seelos, F P AU - Morgan, F AU - Murchie, S L AU - Mustard, J F AU - Morris, R V AU - Humm, D AU - McGuire, P C Y1 - 2016/05/01/ PY - 2016 DA - 2016 May 01 SP - 111 EP - 121 PB - Elsevier, New York, NY VL - 269 SN - 0019-1035, 0019-1035 KW - albedo KW - near-infrared spectra KW - CRISM KW - atmosphere KW - water vapor KW - OMEGA KW - Mars KW - simulation KW - carbon dioxide KW - terrestrial planets KW - models KW - planets KW - absorption KW - ice KW - aerosols KW - spectra KW - corrections KW - Olympus Mons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789753452?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Characterization+of+artifacts+introduced+by+the+empirical+volcano-scan+atmospheric+correction+commonly+applied+to+CRISM+and+OMEGA+near-infrared+spectra&rft.au=Wiseman%2C+Sandra+M%3BArvidson%2C+R+E%3BWolff%2C+M+J%3BSmith%2C+M+D%3BSeelos%2C+F+P%3BMorgan%2C+F%3BMurchie%2C+S+L%3BMustard%2C+J+F%3BMorris%2C+R+V%3BHumm%2C+D%3BMcGuire%2C+P+C&rft.aulast=Wiseman&rft.aufirst=Sandra&rft.date=2016-05-01&rft.volume=269&rft.issue=&rft.spage=111&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2014.10.012 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 23 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2016-05-19 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - absorption; aerosols; albedo; atmosphere; carbon dioxide; corrections; CRISM; ice; Mars; models; near-infrared spectra; Olympus Mons; OMEGA; planets; simulation; spectra; terrestrial planets; water vapor DO - http://dx.doi.org/10.1016/j.icarus.2014.10.012 ER - TY - JOUR T1 - North American megadroughts in the Common Era: reconstructions and simulations AN - 1787977860; PQ0002966908 AB - During the Medieval Climate Anomaly (MCA), Western North America experienced episodes of intense aridity that persisted for multiple decades or longer. These megadroughts are well documented in many proxy records, but the causal mechanisms are poorly understood. General circulation models (GCMs) simulate megadroughts, but do not reproduce the temporal clustering of events during the MCA, suggesting they are not caused by the time history of volcanic or solar forcing. Instead, GCMs generate megadroughts through (1) internal atmospheric variability, (2) sea-surface temperatures, and (3) land surface and dust aerosol feedbacks. While no hypothesis has been definitively rejected, and no GCM has accurately reproduced all features (e.g., timing, duration, and extent) of any specific megadrought, their persistence suggests a role for processes that impart memory to the climate system (land surface and ocean dynamics). Over the 21st century, GCMs project an increase in the risk of megadrought occurrence through greenhouse gas forced reductions in precipitation and increases in evaporative demand. This drying is robust across models and multiple drought indicators, but major uncertainties still need to be resolved. These include the potential moderation of vegetation evaporative losses at higher atmospheric [CO sub(2)], variations in land surface model complexity, and decadal to multidecadal modes of natural climate variability that could delay or advance onset of aridification over the the next several decades. Because future droughts will arise from both natural variability and greenhouse gas forced trends in hydroclimate, improving our understanding of the natural drivers of persistent multidecadal megadroughts should be a major research priority. WIREs Clim Change 2016, 7:411-432. doi: 10.1002/wcc.394 For further resources related to this article, please visit the WIREs website . JF - Wiley Interdisciplinary Reviews: Climate Change AU - Cook, Benjamin I AU - Cook, Edward R AU - Smerdon, Jason E AU - Seager, Richard AU - Williams, APark AU - Coats, Sloan AU - Stahle, David W AU - Diaz, Jose Villanueva AD - NASA Goddard Institute for Space Studies, New York, NY, USA. Y1 - 2016/05// PY - 2016 DA - May 2016 SP - 411 EP - 432 PB - Wiley-Blackwell, Baffins Lane Chichester W. Sussex PO19 1UD United Kingdom VL - 7 IS - 3 SN - 1757-7780, 1757-7780 KW - Meteorological & Geoastrophysical Abstracts; Sustainability Science Abstracts KW - Rainfall KW - Climate change KW - Drought KW - Dust KW - Climate and vegetation KW - Climatic variability KW - Volcanic activity KW - Hydroclimate KW - Paleoceanography KW - Aridity KW - Droughts KW - North America KW - Aerosols KW - Climate models KW - Atmospheric variability KW - Climate KW - Volcanoes KW - Natural variability KW - Vegetation KW - Simulation KW - Precipitation KW - Numerical simulations KW - Reviews KW - Oceans KW - General circulation models KW - Carbon dioxide KW - Greenhouse gases 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/1787977860?accountid=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=Wiley+Interdisciplinary+Reviews%3A+Climate+Change&rft.atitle=North+American+megadroughts+in+the+Common+Era%3A+reconstructions+and+simulations&rft.au=Cook%2C+Benjamin+I%3BCook%2C+Edward+R%3BSmerdon%2C+Jason+E%3BSeager%2C+Richard%3BWilliams%2C+APark%3BCoats%2C+Sloan%3BStahle%2C+David+W%3BDiaz%2C+Jose+Villanueva&rft.aulast=Cook&rft.aufirst=Benjamin&rft.date=2016-05-01&rft.volume=7&rft.issue=3&rft.spage=411&rft.isbn=&rft.btitle=&rft.title=Wiley+Interdisciplinary+Reviews%3A+Climate+Change&rft.issn=17577780&rft_id=info:doi/10.1002%2Fwcc.394 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Climate models; Atmospheric variability; Climate change; Natural variability; Drought; Precipitation; Climate and vegetation; Climatic variability; Numerical simulations; Volcanic activity; General circulation models; Paleoceanography; Greenhouse gases; Aridity; Aerosols; Rainfall; Climate; Volcanoes; Simulation; Vegetation; Dust; Oceans; Reviews; Hydroclimate; Carbon dioxide; Droughts; North America DO - http://dx.doi.org/10.1002/wcc.394 ER - TY - JOUR T1 - Error analysis of upper tropospheric water vapor in CMIP5 models using "A-Train" satellite observations and reanalysis data AN - 1787975752; PQ0002993512 AB - Upper tropospheric water vapor (UTWV) plays a critical role in amplifying global warming caused by increasing greenhouse gases, yet it is one of the most poorly simulated quantities in climate models. It is not clear what physical processes play a central role in controlling the model errors in UTWV. We diagnose the UTWV simulation errors from AMIP models submitted to the CMIP5 project by using "A-Train" satellite observation and reanalysis data. We identify the relative contributions of errors in relative humidity (RH), temperature, and large-scale circulation (represented by vertical pressure velocity at 500 hPa, omega sub(500)) to the modeled UTWV errors over the tropics (30 degree N-30 degree S). It is found that models generally have positive biases in UTWV, except over the continental convective regions where negative biases predominate. The errors in the patterns and amplitudes of climatological UTWV are highly correlated with those in RH and omega sub(500). The fractional UTWV errors show large positive errors over the large-scale descending regimes (0 300 K or omega sub(500) < -3 0 hPa/day) and these errors are positive (negative) where anomalous descent (ascent) occurs during El Nino. We find that the water vapor errors are dominated by the errors in RH rather than in temperature throughout the troposphere, while temperature errors play an important role for water vapor errors near the tropopause. JF - Climate Dynamics AU - Takahashi, Hanii AU - Su, Hui AU - Jiang, Jonathan H AD - Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA, Hanii.Takahashi@jpl.nasa.gov Y1 - 2016/05// PY - 2016 DA - May 2016 SP - 2787 EP - 2803 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 46 IS - 9-10 SN - 0930-7575, 0930-7575 KW - Oceanic Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Remote Sensing KW - Relative humidity KW - Water Vapor KW - Tropopause KW - Climate change KW - Remote sensing KW - Data reanalysis KW - Relative Humidity KW - Upper tropospheric water vapor KW - Sea surface temperature anomalies KW - El Nino KW - Sea surface temperatures KW - Seasonal variations KW - Modelling KW - Satellite Technology KW - Climate models KW - Climates KW - Temperature KW - Troposphere KW - Atmospheric circulation KW - Greenhouse effect KW - Errors KW - Model Studies KW - Satellite sensing KW - Satellite data KW - Numerical simulations KW - Convective activity KW - Global warming KW - Greenhouse gases KW - Q2 09243:Structure, mechanics and thermodynamics KW - SW 0810:General KW - O 4080:Pollution - Control and Prevention KW - M2 551.588:Environmental Influences (551.588) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1787975752?accountid=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=Climate+Dynamics&rft.atitle=Error+analysis+of+upper+tropospheric+water+vapor+in+CMIP5+models+using+%22A-Train%22+satellite+observations+and+reanalysis+data&rft.au=Takahashi%2C+Hanii%3BSu%2C+Hui%3BJiang%2C+Jonathan+H&rft.aulast=Takahashi&rft.aufirst=Hanii&rft.date=2016-05-01&rft.volume=46&rft.issue=9-10&rft.spage=2787&rft.isbn=&rft.btitle=&rft.title=Climate+Dynamics&rft.issn=09307575&rft_id=info:doi/10.1007%2Fs00382-015-2732-9 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Number of references - 41 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Relative humidity; Satellite sensing; El Nino; Climate change; Remote sensing; Troposphere; Greenhouse effect; Seasonal variations; Modelling; Climate models; Tropopause; Atmospheric circulation; Data reanalysis; Upper tropospheric water vapor; Sea surface temperature anomalies; Satellite data; Numerical simulations; Convective activity; Global warming; Greenhouse gases; Sea surface temperatures; Remote Sensing; Satellite Technology; Water Vapor; Climates; Temperature; Errors; Relative Humidity; Model Studies DO - http://dx.doi.org/10.1007/s00382-015-2732-9 ER - TY - JOUR T1 - Observational constraints on atmospheric and oceanic cross-equatorial heat transports: revisiting the precipitation asymmetry problem in climate models AN - 1787974499; PQ0002993540 AB - Satellite based top-of-atmosphere (TOA) and surface radiation budget observations are combined with mass corrected vertically integrated atmospheric energy divergence and tendency from reanalysis to infer the regional distribution of the TOA, atmospheric and surface energy budget terms over the globe. Hemispheric contrasts in the energy budget terms are used to determine the radiative and combined sensible and latent heat contributions to the cross-equatorial heat transports in the atmosphere (AHT sub(EQ)) and ocean (OHT sub(EQ)). The contrast in net atmospheric radiation implies an AHT sub(EQ) from the northern hemisphere (NH) to the southern hemisphere (SH) (0.75 PW), while the hemispheric difference in sensible and latent heat implies an AHT sub(EQ) in the opposite direction (0.51 PW), resulting in a net NH to SH AHT sub(EQ) (0.24 PW). At the surface, the hemispheric contrast in the radiative component (0.95 PW) dominates, implying a 0.44 PW SH to NH OHT sub(EQ). Coupled model intercomparison project phase 5 (CMIP5) models with excessive net downward surface radiation and surface-to-atmosphere sensible and latent heat transport in the SH relative to the NH exhibit anomalous northward AHT sub(EQ) and overestimate SH tropical precipitation. The hemispheric bias in net surface radiative flux is due to too much longwave surface radiative cooling in the NH tropics in both clear and all-sky conditions and excessive shortwave surface radiation in the SH subtropics and extratropics due to an underestimation in reflection by clouds. JF - Climate Dynamics AU - Loeb, Norman G AU - Wang, Hailan AU - Cheng, Anning AU - Kato, Seiji AU - Fasullo, John T AU - Xu, Kuan-Man AU - Allan, Richard P AD - NASA Langley Research Center, Hampton, VA, USA, norman.g.loeb@nasa.gov Y1 - 2016/05// PY - 2016 DA - May 2016 SP - 3239 EP - 3257 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 46 IS - 9-10 SN - 0930-7575, 0930-7575 KW - Oceanic Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Divergence KW - Data reanalysis KW - Latent Heat KW - Radiation budget KW - Radiation KW - Ocean-atmosphere system KW - Atmospheric radiation KW - Heat transport KW - Modelling KW - Atmospheric precipitations KW - Marine KW - Heat flux KW - Climate models KW - Climates KW - Precipitation KW - Energy budget KW - Model Studies KW - Clouds KW - Heat KW - Oceans KW - Sensible and latent heat KW - Downward long wave radiation KW - Fluctuations KW - Q2 09243:Structure, mechanics and thermodynamics KW - SW 0810:General KW - M2 551.581:Latitudinal Influences (551.581) KW - O 7060:Navigation and Communications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1787974499?accountid=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=Climate+Dynamics&rft.atitle=Observational+constraints+on+atmospheric+and+oceanic+cross-equatorial+heat+transports%3A+revisiting+the+precipitation+asymmetry+problem+in+climate+models&rft.au=Loeb%2C+Norman+G%3BWang%2C+Hailan%3BCheng%2C+Anning%3BKato%2C+Seiji%3BFasullo%2C+John+T%3BXu%2C+Kuan-Man%3BAllan%2C+Richard+P&rft.aulast=Loeb&rft.aufirst=Norman&rft.date=2016-05-01&rft.volume=46&rft.issue=9-10&rft.spage=3239&rft.isbn=&rft.btitle=&rft.title=Climate+Dynamics&rft.issn=09307575&rft_id=info:doi/10.1007%2Fs00382-015-2766-z LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Number of references - 54 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Atmospheric precipitations; Radiation; Ocean-atmosphere system; Downward long wave radiation; Energy budget; Modelling; Heat transport; Clouds; Radiation budget; Heat flux; Climate models; Sensible and latent heat; Divergence; Precipitation; Data reanalysis; Atmospheric radiation; Heat; Oceans; Climates; Fluctuations; Latent Heat; Model Studies; Marine DO - http://dx.doi.org/10.1007/s00382-015-2766-z ER - TY - JOUR T1 - Metagenomic Analyses of the Autotrophic Fe(II)-Oxidizing, Nitrate-Reducing Enrichment Culture KS. AN - 1782834059; 26896135 AB - Nitrate-dependent ferrous iron [Fe(II)] oxidation (NDFO) is a well-recognized chemolithotrophic pathway in anoxic sediments. The neutrophilic chemolithoautotrophic enrichment culture KS originally obtained from a freshwater sediment (K. L. Straub, M. Benz, B. Schink, and F. Widdel, Appl Environ Microbiol 62:1458-1460, 1996) has been used as a model system to study NDFO. However, the primary Fe(II) oxidizer in this culture has not been isolated, despite extensive efforts to do so. Here, we present a metagenomic analysis of this enrichment culture in order to gain insight into electron transfer pathways and the roles of different bacteria in the culture. We obtained a near-complete genome of the primary Fe(II) oxidizer, a species in the family Gallionellaceae, and draft genomes from its flanking community members. A search of the putative extracellular electron transfer pathways in these genomes led to the identification of a homolog of the MtoAB complex [a porin-multiheme cytochromec system identified in neutrophilic microaerobic Fe(II)-oxidizing Sideroxydans lithotrophicus ES-1] in a Gallionellaceae sp., and findings of other putative genes involving cytochromecand multicopper oxidases, such as Cyc2 and OmpB. Genome-enabled metabolic reconstruction revealed that this Gallionellaceae sp. lacks nitric oxide and nitrous oxide reductase genes and may partner with flanking populations capable of complete denitrification to avoid toxic metabolite accumulation, which may explain its resistance to growth in pure culture. This and other revealed interspecies interactions and metabolic interdependencies in nitrogen and carbon metabolisms may allow these organisms to cooperate effectively to achieve robust chemolithoautotrophic NDFO. Overall, the results significantly expand our knowledge of NDFO and suggest a range of genetic targets for further exploration. Copyright © 2016, American Society for Microbiology. All Rights Reserved. JF - Applied and environmental microbiology AU - He, Shaomei AU - Tominski, Claudia AU - Kappler, Andreas AU - Behrens, Sebastian AU - Roden, Eric E AD - Department of Geoscience, University of Wisconsin-Madison, Madison, Wisconsin, USA Department of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin, USA NASA Astrobiology Institute, University of Wisconsin-Madison, Madison, Wisconsin, USA she@wisc.edu eroden@geology.wisc.edu. ; Geomicrobiology, Center for Applied Geosciences (ZAG), Eberhard Karls University Tuebingen, Tuebingen, Germany. ; Department of Civil, Environmental, and Geo-Engineering, University of Minnesota, Minneapolis, Minnesota, USA BioTechnology Institute, University of Minnesota, St. Paul, Minnesota, USA. ; Department of Geoscience, University of Wisconsin-Madison, Madison, Wisconsin, USA NASA Astrobiology Institute, University of Wisconsin-Madison, Madison, Wisconsin, USA she@wisc.edu eroden@geology.wisc.edu. Y1 - 2016/05// PY - 2016 DA - May 2016 SP - 2656 EP - 2668 VL - 82 IS - 9 KW - Culture Media KW - 0 KW - DNA, Bacterial KW - Ferrous Compounds KW - Nitrates KW - RNA, Ribosomal, 16S KW - Hydrogen KW - 7YNJ3PO35Z KW - Oxidoreductases KW - EC 1.- KW - nitrous oxide reductase KW - EC 1.7.2.4 KW - Index Medicus KW - Phylogeny KW - Geologic Sediments -- chemistry KW - RNA, Ribosomal, 16S -- genetics KW - Computer Simulation KW - Electron Transport KW - Metabolic Networks and Pathways KW - Sequence Analysis, DNA KW - Oxidation-Reduction KW - Metagenomics -- methods KW - Oxidoreductases -- genetics KW - Oxidoreductases -- metabolism KW - Autotrophic Processes KW - Fresh Water KW - Sequence Analysis KW - DNA, Bacterial -- genetics KW - Hydrogen -- metabolism KW - Gallionellaceae -- genetics KW - Ferrous Compounds -- metabolism KW - Nitrates -- metabolism KW - Gallionellaceae -- enzymology KW - Gallionellaceae -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1782834059?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+environmental+microbiology&rft.atitle=Metagenomic+Analyses+of+the+Autotrophic+Fe%28II%29-Oxidizing%2C+Nitrate-Reducing+Enrichment+Culture+KS.&rft.au=He%2C+Shaomei%3BTominski%2C+Claudia%3BKappler%2C+Andreas%3BBehrens%2C+Sebastian%3BRoden%2C+Eric+E&rft.aulast=He&rft.aufirst=Shaomei&rft.date=2016-05-01&rft.volume=82&rft.issue=9&rft.spage=2656&rft.isbn=&rft.btitle=&rft.title=Applied+and+environmental+microbiology&rft.issn=1098-5336&rft_id=info:doi/10.1128%2FAEM.03493-15 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2017-01-31 N1 - Date created - 2016-04-19 N1 - Date revised - 2017-02-02 N1 - SuppNotes - Cited By: FEMS Microbiol Rev. 2001 Aug;25(4):455-501 [11524134] ISME J. 2014 Jul;8(7):1452-63 [24621521] J Bacteriol. 2003 Apr;185(7):2096-103 [12644478] Nucleic Acids Res. 2004 Jul 1;32(Web Server issue):W400-4 [15215419] BMC Bioinformatics. 2004 Aug 19;5:113 [15318951] J Bacteriol. 1990 Apr;172(4):1969-77 [2180913] J Bacteriol. 1990 Jun;172(6):2920-9 [2188945] Mol Microbiol. 1992 Jun;6(11):1523-32 [1625581] J Bacteriol. 1993 Jan;175(1):128-32 [8380149] J Bacteriol. 1996 Mar;178(6):1532-8 [8626278] Appl Environ Microbiol. 1997 Dec;63(12):4784-92 [9406396] J Bacteriol. 1998 Dec;180(23):6292-7 [9829939] Appl Environ Microbiol. 2005 Dec;71(12):8634-41 [16332857] Environ Microbiol. 2006 Jan;8(1):100-13 [16343326] Microbiology. 2006 Aug;152(Pt 8):2257-64 [16849792] Mol Microbiol. 2006 Jul;61(2):297-309 [16856937] Proteins. 2006 Aug 15;64(3):643-51 [16752418] Microbiology. 2007 Jan;153(Pt 1):102-10 [17185539] J Bacteriol. 2007 Mar;189(5):1765-73 [17189359] J Bacteriol. 2007 Mar;189(5):1774-82 [17189371] J Bacteriol. 2000 Jun;182(12):3602-6 [10852897] Appl Environ Microbiol. 2001 Mar;67(3):1328-34 [11229928] Environ Sci Technol. 2001 Apr 15;35(8):1644-50 [11329715] Appl Microbiol Biotechnol. 2007 Oct;76(5):1035-42 [17668201] FEMS Microbiol Lett. 2007 Dec;277(1):21-7 [17986080] Microbiology. 2008 May;154(Pt 5):1422-35 [18451051] J Exp Bot. 2008;59(7):1525-41 [18245799] Mol Biol Evol. 2008 Jul;25(7):1307-20 [18367465] J Biol Chem. 2008 Sep 19;283(38):25803-11 [18632666] Water Res. 2009 Feb;43(2):546-52 [19081595] Genome Biol. 2009;10(8):R85 [19698104] J Bacteriol. 2010 Mar;192(5):1475-6 [20023012] Syst Biol. 2010 May;59(3):307-21 [20525638] Bioinformatics. 2010 Jul 1;26(13):1608-15 [20472543] Microbiology. 2011 Jun;157(Pt 6):1551-64 [21511765] Genome Res. 2011 Sep;21(9):1552-60 [21690186] Water Res. 2011 Nov 15;45(18):5945-52 [21940030] J Biol Chem. 2012 Jan 2;287(1):757-66 [22105076] Appl Environ Microbiol. 2012 Feb;78(4):913-21 [22179232] ISME J. 2012 Jun;6(6):1186-99 [22170421] Mol Microbiol. 2012 Jul;85(2):201-12 [22646977] Appl Environ Microbiol. 2012 Aug;78(16):5746-52 [22685132] Biochem Soc Trans. 2012 Dec 1;40(6):1249-56 [23176463] Biochem Soc Trans. 2012 Dec 1;40(6):1261-7 [23176465] Biochim Biophys Acta. 2013 Feb;1827(2):161-75 [23044392] Nat Biotechnol. 2013 Jun;31(6):533-8 [23707974] Nat Commun. 2013;4:2304 [23942190] J Bacteriol. 2014 Dec;196(24):4206-15 [25182500] Environ Microbiol Rep. 2014 Dec;6(6):776-85 [25139405] Appl Environ Microbiol. 2015 Sep 1;81(17):5927-37 [26092463] Appl Environ Microbiol. 2009 Nov;75(21):6937-40 [19749073] Nucleic Acids Res. 2014 Jan;42(Database issue):D568-73 [24136997] Nucleic Acids Res. 2014 Jan;42(Database issue):D560-7 [24165883] Appl Environ Microbiol. 2014 Feb;80(3):1051-61 [24271182] J Bacteriol. 2002 Mar;184(6):1750-8 [11872727] N1 - Last updated - 2017-02-02 DO - http://dx.doi.org/10.1128/AEM.03493-15 ER - TY - NEWS T1 - NASA helps mmonitor LA coastline AN - 1785165746 JF - UPI Space Daily AU - Carol Rasmussen for NASA Earth Science News Y1 - 2016/04/29/ PY - 2016 DA - 2016 Apr 29 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1785165746?accountid=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+helps+mmonitor+LA+coastline&rft.au=Carol+Rasmussen+for+NASA+Earth+Science+News&rft.aulast=Carol+Rasmussen+for+NASA+Earth+Science+News&rft.aufirst=&rft.date=2016-04-29&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 - 2016-04-29 ER - TY - NEWS T1 - On the trail of a hazy global killer AN - 1785165561 JF - UPI Space Daily AU - Steve Cole NASA Earth Science News Y1 - 2016/04/29/ PY - 2016 DA - 2016 Apr 29 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1785165561?accountid=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=On+the+trail+of+a+hazy+global+killer&rft.au=Steve+Cole+NASA+Earth+Science+News&rft.aulast=Steve+Cole+NASA+Earth+Science+News&rft.aufirst=&rft.date=2016-04-29&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 - 2016-04-29 ER - TY - JOUR T1 - LADEE/LDEX observations of lunar pickup ion distribution and variability AN - 1819895540; 2016-080683 AB - We report fortuitous observations of low-energy lunar pickup ion fluxes near the Moon while in the solar wind by the Lunar Dust Experiment (LDEX) on board the Lunar Atmosphere and Dust Environment Explorer (LADEE). We describe the method of observation and the empirical calibration of the instrument for ion observations. LDEX observes several trends in the exospheric ion production rate, including a scale height of approximately 100 km, a positive, linear correlation with solar wind flux, and evidence of a slight enhancement near 7-8 h local time. We compare the LDEX observations to both LADEE Neutral Mass Spectrometer ion mode observations and theoretical models. The LDEX data are best fit by total exospheric ion production rates of nearly equal 6 X 10 (super 3) m (super -3) s (super -1) with dominant contributions from Al (super +) , CO (super +) , and Ar (super +) , although the LDEX data suggest that the aluminum neutral density and corresponding ion production rate are lower than predicted by recent models. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Geophysical Research Letters AU - Poppe, A R AU - Halekas, J S AU - Szalay, J R AU - Horanyi, M AU - Levin, Z AU - Kempf, S Y1 - 2016/04/16/ PY - 2016 DA - 2016 Apr 16 SP - 3069 EP - 3077 PB - American Geophysical Union, Washington, DC VL - 43 IS - 7 SN - 0094-8276, 0094-8276 KW - oxygen KW - Moon KW - solar wind KW - alkali metals KW - calibration KW - sodium KW - silicon KW - ions KW - Lunar Dust Experiment KW - iron KW - observations KW - exosphere KW - argon KW - models KW - Lunar Atmosphere and Dust Environment Explorer KW - noble gases KW - metals KW - carbon KW - aluminum KW - potassium KW - helium KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819895540?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=LADEE%2FLDEX+observations+of+lunar+pickup+ion+distribution+and+variability&rft.au=Poppe%2C+A+R%3BHalekas%2C+J+S%3BSzalay%2C+J+R%3BHoranyi%2C+M%3BLevin%2C+Z%3BKempf%2C+S&rft.aulast=Poppe&rft.aufirst=A&rft.date=2016-04-16&rft.volume=43&rft.issue=7&rft.spage=3069&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2016GL068393 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 45 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2016-09-16 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - alkali metals; aluminum; argon; calibration; carbon; exosphere; helium; ions; iron; Lunar Atmosphere and Dust Environment Explorer; Lunar Dust Experiment; metals; models; Moon; noble gases; observations; oxygen; particles; potassium; silicon; sodium; solar wind DO - http://dx.doi.org/10.1002/2016GL068393 ER - TY - JOUR T1 - Extracting ocean-generated tidal magnetic signals from Swarm data through satellite gradiometry AN - 1819895484; 2016-080703 AB - Ocean-generated magnetic field models of the Principal Lunar, M (sub 2) , and the Larger Lunar elliptic, N (sub 2) , semidiurnal tidal constituents were estimated through a "Comprehensive Inversion" of the first 20.5 months of magnetic measurements from European Space Agency's (ESA) Swarm satellite constellation mission. While the constellation provides important north-south along-track gradiometry information, it is the unique low-spacecraft pair that allows for east-west cross-track gradiometry. This latter type is crucial in delivering an M (sub 2) estimate of similar quality with that derived from over 10 years of CHAMP satellite data but over a shorter interval, at higher altitude, and during more magnetically disturbed conditions. Recovered N (sub 2) contains nonoceanic signal but is highly correlated with theoretical models in regions of maximum oceanic amplitude. Thus, satellite magnetic gradiometry may eventually enable the monitoring of ocean electrodynamic properties at temporal resolutions of 1 to 2 years, which may have important implications for the inference of ocean temperature and salinity. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Geophysical Research Letters AU - Sabaka, Terence J AU - Tyler, Robert H AU - Olsen, Nils Y1 - 2016/04/16/ PY - 2016 DA - 2016 Apr 16 SP - 3237 EP - 3245 PB - American Geophysical Union, Washington, DC VL - 43 IS - 7 SN - 0094-8276, 0094-8276 KW - ocean circulation KW - sea water KW - monitoring KW - Swarm Mission KW - global KW - geophysical methods KW - magnetic methods KW - properties KW - equations KW - salinity KW - satellite methods KW - temperature KW - measurement KW - tides KW - models KW - gradiometry KW - remote sensing KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819895484?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Extracting+ocean-generated+tidal+magnetic+signals+from+Swarm+data+through+satellite+gradiometry&rft.au=Sabaka%2C+Terence+J%3BTyler%2C+Robert+H%3BOlsen%2C+Nils&rft.aulast=Sabaka&rft.aufirst=Terence&rft.date=2016-04-16&rft.volume=43&rft.issue=7&rft.spage=3237&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2016GL068180 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 30 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2016-09-16 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - equations; geophysical methods; global; gradiometry; magnetic methods; measurement; models; monitoring; ocean circulation; properties; remote sensing; salinity; satellite methods; sea water; Swarm Mission; temperature; tides DO - http://dx.doi.org/10.1002/2016GL068180 ER - TY - JOUR T1 - Postseismic gravity change after the 2006-2007 great earthquake doublet and constraints on the asthenosphere structure in the central Kuril Islands AN - 1819894706; 2016-080695 AB - Large earthquakes often trigger viscoelastic adjustment for years to decades depending on the rheological properties and the nature and spatial extent of coseismic stress. The 2006 M (sub w) 8.3 thrust and 2007 M (sub w) 8.1 normal fault earthquakes of the central Kuril Islands resulted in significant postseismic gravity change in Gravity Recovery and Climate Experiment (GRACE) but without a discernible coseismic gravity change. The gravity increase of approximately 4 mu Gal, observed consistently from various GRACE solutions around the epicentral area during 2007-2015, is interpreted as resulting from gradual seafloor uplift by approximately 6 cm produced by postseismic relaxation. The GRACE data are best fit with a model of 25-35 km for the elastic thickness and approximately 10 (super 18) Pa s for the Maxwell viscosity of the asthenosphere. The large measurable postseismic gravity change (greater than coseismic change) emphasizes the importance of viscoelastic relaxation in understanding tectonic deformation and fault-locking scenarios in the Kuril subduction zone. Abstract Copyright (2016), . The Authors. JF - Geophysical Research Letters AU - Han, Shin-Chan AU - Sauber, Jeanne AU - Pollitz, Fred Y1 - 2016/04/16/ PY - 2016 DA - 2016 Apr 16 SP - 3169 EP - 3177 PB - American Geophysical Union, Washington, DC VL - 43 IS - 7 SN - 0094-8276, 0094-8276 KW - Russian Pacific region KW - Sakhalin Russian Federation KW - Tohoku-Oki earthquake 2011 KW - geophysical surveys KW - GRACE KW - Russian Federation KW - Kuril Islands earthquakes 2006-2007 KW - spatial distribution KW - gravity methods KW - Kuril Islands KW - Commonwealth of Independent States KW - quantitative analysis KW - rheology KW - compression KW - Asia KW - faults KW - patterns KW - time series analysis KW - stress KW - statistical analysis KW - geophysical methods KW - Sumatra-Andaman Islands earthquake 2004 KW - relaxation KW - properties KW - equations KW - satellite methods KW - viscoelasticity KW - models KW - asthenosphere KW - rupture KW - viscosity KW - thrust faults KW - great earthquakes KW - surveys KW - epicenters KW - earthquakes KW - crust KW - 19:Seismology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819894706?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Postseismic+gravity+change+after+the+2006-2007+great+earthquake+doublet+and+constraints+on+the+asthenosphere+structure+in+the+central+Kuril+Islands&rft.au=Han%2C+Shin-Chan%3BSauber%2C+Jeanne%3BPollitz%2C+Fred&rft.aulast=Han&rft.aufirst=Shin-Chan&rft.date=2016-04-16&rft.volume=43&rft.issue=7&rft.spage=3169&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2016GL068167 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 32 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2016-09-16 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - Asia; asthenosphere; Commonwealth of Independent States; compression; crust; earthquakes; epicenters; equations; faults; geophysical methods; geophysical surveys; GRACE; gravity methods; great earthquakes; Kuril Islands; Kuril Islands earthquakes 2006-2007; models; patterns; properties; quantitative analysis; relaxation; rheology; rupture; Russian Federation; Russian Pacific region; Sakhalin Russian Federation; satellite methods; spatial distribution; statistical analysis; stress; Sumatra-Andaman Islands earthquake 2004; surveys; thrust faults; time series analysis; Tohoku-Oki earthquake 2011; viscoelasticity; viscosity DO - http://dx.doi.org/10.1002/2016GL068167 ER - TY - JOUR T1 - Solid-state photochemistry as a formation mechanism for Titan's stratospheric C (sub 4) N (sub 2) ice clouds AN - 1819894240; 2016-080685 AB - We propose that C (sub 4) N (sub 2) ice clouds observed in Titan's springtime polar stratosphere arise due to solid-state photochemistry occurring within extant ice cloud particles of HCN-HC (sub 3) N mixtures. This formation process resembles the halogen-induced ice particle surface chemistry that leads to condensed nitric acid trihydrate (NAT) particles and ozone depletion in Earth's polar stratosphere. As our analysis of the Cassini Composite Infrared Spectrometer 478 cm (super -1) ice emission feature demonstrates, this solid-state photochemistry mechanism eliminates the need for the relatively high C (sub 4) N (sub 2) saturation vapor pressures required (even though they are not observed) when the ice is produced through the usual procedure of direct condensation from the vapor. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Geophysical Research Letters AU - Anderson, Carrie M AU - Samuelson, R E AU - Yung, Y L AU - McLain, J L Y1 - 2016/04/16/ PY - 2016 DA - 2016 Apr 16 SP - 3088 EP - 3094 PB - American Geophysical Union, Washington, DC VL - 43 IS - 7 SN - 0094-8276, 0094-8276 KW - icy satellites KW - nitric acid trihydrate KW - pressure KW - density KW - condensation KW - photochemistry KW - mechanism KW - ice clouds KW - equations KW - variations KW - observations KW - models KW - ozone KW - stratosphere KW - chemical reactions KW - saturation KW - Titan Satellite KW - thickness KW - aerosols KW - dicyanoacetylene KW - seasonal variations KW - satellites KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819894240?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Solid-state+photochemistry+as+a+formation+mechanism+for+Titan%27s+stratospheric+C+%28sub+4%29+N+%28sub+2%29+ice+clouds&rft.au=Anderson%2C+Carrie+M%3BSamuelson%2C+R+E%3BYung%2C+Y+L%3BMcLain%2C+J+L&rft.aulast=Anderson&rft.aufirst=Carrie&rft.date=2016-04-16&rft.volume=43&rft.issue=7&rft.spage=3088&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2016GL067795 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 29 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2016-09-16 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - aerosols; chemical reactions; condensation; density; dicyanoacetylene; equations; ice clouds; icy satellites; mechanism; models; nitric acid trihydrate; observations; ozone; particles; photochemistry; pressure; satellites; saturation; seasonal variations; stratosphere; thickness; Titan Satellite; variations DO - http://dx.doi.org/10.1002/2016GL067795 ER - TY - JOUR T1 - Coupling between mineral reactions, chemical changes in groundwater, and earthquakes in Iceland AN - 1844925045; 2016-101433 AB - Chemical analysis of groundwater samples collected from a borehole at Hafralaekur, northern Iceland, from October 2008 to June 2015 revealed (1) a long-term decrease in concentration of Si and Na and (2) an abrupt increase in concentration of Na before each of two consecutive M > 5 earthquakes which occurred in 2012 and 2013, both 76 km from Hafralaekur. Based on a geochemical (major elements and stable isotopes), petrological, and mineralogical study of drill cuttings taken from an adjacent borehole, we are able to show that (1) the long-term decrease in concentration of Si and Na was caused by constant volume replacement of labradorite by analcime coupled with precipitation of zeolites in vesicles and along fractures and (2) the abrupt increase of Na concentration before the first earthquake records a switchover to nonstoichiometric dissolution of analcime with preferential release of Na into groundwater. We attribute decay of the Na peaks, which followed and coincided with each earthquake to uptake of Na along fractured or porous boundaries between labradorite and analcime crystals. Possible causes of these Na peaks are an increase of reactive surface area caused by fracturing or a shift from chemical equilibrium caused by mixing between groundwater components. Both could have been triggered by preseismic dilation, which was also inferred in a previous study by Skelton et al. (2014). The mechanism behind preseismic dilation so far from the focus of an earthquake remains unknown. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Solid Earth AU - Andren, Margareta AU - Stockmann, Gabrielle AU - Skelton, Alasdair AU - Sturkell, Erik AU - Morth, Carl-Magnus AU - Guethrunardottir, Helga Rakel AU - Keller, Nicole Simone AU - Odling, Nic AU - Dahren, Borje AU - Broman, Curt AU - Balic-Zunic, Tonci AU - Hjartarson, Hreinn AU - Siegmund, Heike AU - Freund, Friedemann AU - Kockum, Ingrid Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 2315 EP - 2337 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 4 SN - 2169-9313, 2169-9313 KW - silicates KW - Hafralaekur Island KW - Europe KW - labradorite KW - cuttings KW - mineral composition KW - mixing KW - zeolite group KW - framework silicates KW - northern Iceland KW - lower Pleistocene KW - plagioclase KW - Eurasian Plate KW - monitoring KW - Quaternary KW - time series analysis KW - pillow lava KW - Tertiary KW - plate tectonics KW - Pleistocene KW - Iceland KW - dilation KW - feldspar group KW - earthquakes KW - crust KW - precursors KW - isotope fractionation KW - volcanic rocks KW - oxygen KW - isotopes KW - igneous rocks KW - hyaloclastite KW - upper Pliocene KW - solution KW - silicon KW - Holocene KW - stable isotopes KW - ground water KW - emission spectra KW - Cenozoic KW - fractures KW - major elements KW - water-rock interaction KW - spectra KW - chemical composition KW - stoichiometry KW - geochemistry KW - Western Europe KW - isotope ratios KW - statistical analysis KW - magnitude KW - alkali metals KW - O-18/O-16 KW - sodium KW - North American Plate KW - hydrochemistry KW - pyroclastics KW - boreholes KW - lava KW - D/H KW - Neogene KW - metals KW - hydrogen KW - Pliocene KW - analcime KW - 19:Seismology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844925045?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Solid+Earth&rft.atitle=Coupling+between+mineral+reactions%2C+chemical+changes+in+groundwater%2C+and+earthquakes+in+Iceland&rft.au=Andren%2C+Margareta%3BStockmann%2C+Gabrielle%3BSkelton%2C+Alasdair%3BSturkell%2C+Erik%3BMorth%2C+Carl-Magnus%3BGuethrunardottir%2C+Helga+Rakel%3BKeller%2C+Nicole+Simone%3BOdling%2C+Nic%3BDahren%2C+Borje%3BBroman%2C+Curt%3BBalic-Zunic%2C+Tonci%3BHjartarson%2C+Hreinn%3BSiegmund%2C+Heike%3BFreund%2C+Friedemann%3BKockum%2C+Ingrid&rft.aulast=Andren&rft.aufirst=Margareta&rft.date=2016-04-01&rft.volume=121&rft.issue=4&rft.spage=2315&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Solid+Earth&rft.issn=21699313&rft_id=info:doi/10.1002%2F2015JB012614 L2 - http://agupubs.onlinelibrary.wiley.com/agu/jgr/journal/10.1002/(ISSN)2169-9356/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 49 N1 - PubXState - DC N1 - Document feature - illus. incl. sect., strat. cols., 3 tables, sketch maps N1 - Last updated - 2016-12-01 N1 - SubjectsTermNotLitGenreText - alkali metals; analcime; boreholes; Cenozoic; chemical composition; crust; cuttings; D/H; dilation; earthquakes; emission spectra; Eurasian Plate; Europe; feldspar group; fractures; framework silicates; geochemistry; ground water; Hafralaekur Island; Holocene; hyaloclastite; hydrochemistry; hydrogen; Iceland; igneous rocks; isotope fractionation; isotope ratios; isotopes; labradorite; lava; lower Pleistocene; magnitude; major elements; metals; mineral composition; mixing; monitoring; Neogene; North American Plate; northern Iceland; O-18/O-16; oxygen; pillow lava; plagioclase; plate tectonics; Pleistocene; Pliocene; precursors; pyroclastics; Quaternary; silicates; silicon; sodium; solution; spectra; stable isotopes; statistical analysis; stoichiometry; Tertiary; time series analysis; upper Pliocene; volcanic rocks; water-rock interaction; Western Europe; zeolite group DO - http://dx.doi.org/10.1002/2015JB012614 ER - TY - JOUR T1 - Climate-induced landsliding within the larch dominant permafrost zone of central Siberia AN - 1832656979; 779275-37 AB - Climate impact on landslide occurrence and spatial patterns were analyzed within the larch-dominant communities associated with continuous permafrost areas of central Siberia. We used high resolution satellite imagery (i.e. QuickBird, WorldView) to identify landslide scars over an area of 62 000 km (super 2) . Landslide occurrence was analyzed with respect to climate variables (air temperature, precipitation, drought index SPEI), and Gravity Recovery and Climate Experiment satellite derived equivalent of water thickness anomalies (EWTA). Landslides were found only on southward facing slopes, and the occurrence of landslides increased exponentially with increasing slope steepness. Lengths of landslides correlated positively with slope steepness. The observed upper elevation limit of landslides tended to coincide with the tree line. Observations revealed landslides occurrence was also found to be strongly correlated with August precipitation (r = 0.81) and drought index (r = 0.7), with June�July�August soil water anomalies (i.e., EWTA, r = 0.68�0.7), and number of thawing days (i.e., a number of days with t (sub max) > 0 degrees C; r = 0.67). A significant increase in the variance of soil water anomalies was observed, indicating that occurrence of landslides may increase even with a stable mean precipitation level. The key-findings of this study are (1) landslides occurrence increased within the permafrost zone of central Siberia in the beginning of the 21st century; (2) the main cause of increased landslides occurrence are extremes in precipitation and soil water anomalies; and (3) landslides occurrence are strongly dependent on relief features such as southward facing steep slopes. Copyright (Copyright) 2016 IOP Publishing Ltd JF - Environmental Research Letters AU - Kharuk, Viacheslav I AU - Shushpanov, Alexandr S AU - Im, Sergei T AU - Ranson, Kenneth J Y1 - 2016/04// PY - 2016 DA - April 2016 EP - Paper no. 045004 PB - IOP Publishing for Institute of Physics, Bristol VL - 11 IS - 4 KW - imagery KW - permafrost KW - communities KW - slopes KW - GRACE KW - ecosystems KW - atmospheric precipitation KW - vegetation KW - climate change KW - relief KW - drought KW - spatial distribution KW - Siberia KW - geographic information systems KW - tree line KW - mass movements KW - Asia KW - water KW - soils KW - elevation KW - statistical analysis KW - anomalies KW - satellite methods KW - thawing KW - landslides KW - terrains KW - information systems KW - remote sensing KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832656979?accountid=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=Environmental+Research+Letters&rft.atitle=Climate-induced+landsliding+within+the+larch+dominant+permafrost+zone+of+central+Siberia&rft.au=Kharuk%2C+Viacheslav+I%3BShushpanov%2C+Alexandr+S%3BIm%2C+Sergei+T%3BRanson%2C+Kenneth+J&rft.aulast=Kharuk&rft.aufirst=Viacheslav&rft.date=2016-04-01&rft.volume=11&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%2F11%2F4%2F045004 L2 - http://iopscience.iop.org/1748-9326 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 supplied by IOP Publishing Ltd., London, United Kingdom N1 - Number of references - 42 N1 - Document feature - illus. incl. 3 tables, sketch map N1 - SuppNotes - Includes appendix N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - anomalies; Asia; atmospheric precipitation; climate change; communities; drought; ecosystems; elevation; geographic information systems; GRACE; imagery; information systems; landslides; mass movements; permafrost; relief; remote sensing; satellite methods; Siberia; slopes; soils; spatial distribution; statistical analysis; terrains; thawing; tree line; vegetation; water DO - http://dx.doi.org/10.1088/1748-9326/11/4/045004 ER - TY - JOUR T1 - Snow process estimation over the extratropical Andes using a data assimilation framework integrating MERRA data and Landsat imagery AN - 1828846104; 2016-086741 AB - A data assimilation framework was implemented with the objective of obtaining high-resolution retrospective snow water equivalent (SWE) estimates over several Andean study basins. The framework integrates Landsat fractional snow covered area (fSCA) images, a land surface and snow depletion model, and the Modern Era Retrospective Analysis for Research and Applications (MERRA) reanalysis as a forcing data set. The outputs are SWE and fSCA fields (1985-2015) at a resolution of 90 m that are consistent with the observed depletion record. Verification using in-situ snow surveys showed significant improvements in the accuracy of the SWE estimates relative to forward model estimates, with increases in correlation (0.49-0.87) and reductions in root mean square error (0.316 m to 0.129 m) and mean error (-0.221 m to 0.009 m). A sensitivity analysis showed that the framework is robust to variations in physiography, fSCA data availability and a priori precipitation biases. Results from the application to the headwater basin of the Aconcagua River showed how the forward model versus the fSCA-conditioned estimate resulted in different quantifications of the relationship between runoff and SWE, and different correlation patterns between pixel-wise SWE and ENSO. The illustrative results confirm the influence that ENSO has on snow accumulation for Andean basins draining into the Pacific, with ENSO explaining approximately 25% of the variability in near-peak (1 September) SWE values. Our results show how the assimilation of fSCA data results in a significant improvement upon MERRA-forced modeled SWE estimates, further increasing the utility of the MERRA data for high-resolution snow modeling applications. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Water Resources Research AU - Cortes, Gonzalo AU - Girotto, Manuela AU - Margulis, Steven Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 2582 EP - 2600 PB - American Geophysical Union, Washington, DC VL - 52 IS - 4 SN - 0043-1397, 0043-1397 KW - hydrology KW - Andes KW - imagery KW - snow water equivalent KW - MERRA method KW - Chile KW - satellite methods KW - South America KW - mountains KW - Landsat KW - El Nino Southern Oscillation KW - sensitivity analysis KW - snow KW - remote sensing KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828846104?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Snow+process+estimation+over+the+extratropical+Andes+using+a+data+assimilation+framework+integrating+MERRA+data+and+Landsat+imagery&rft.au=Cortes%2C+Gonzalo%3BGirotto%2C+Manuela%3BMargulis%2C+Steven&rft.aulast=Cortes&rft.aufirst=Gonzalo&rft.date=2016-04-01&rft.volume=52&rft.issue=4&rft.spage=2582&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1002%2F2015WR018376 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 55 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2016-10-25 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - Andes; Chile; El Nino Southern Oscillation; hydrology; imagery; Landsat; MERRA method; mountains; remote sensing; satellite methods; sensitivity analysis; snow; snow water equivalent; South America DO - http://dx.doi.org/10.1002/2015WR018376 ER - TY - JOUR T1 - Seasonal heat and freshwater cycles in the Arctic Ocean in CMIP5 coupled models AN - 1819897989; 2016-078835 AB - This study examines the processes governing the seasonal response of the Arctic Ocean and sea ice to surface forcings as they appear in historical simulations of 14 Coupled Model Intercomparison Project Phase 5 coupled climate models. In both models and observations, the seasonal heat budget is dominated by a local balance between net surface heating and storage in the heat content of the ocean and in melting/freezing of sea ice. Observations suggest ocean heat storage is more important than sea ice melt, while in most of these models, sea ice melt dominates. Seasonal horizontal heat flux divergence driven by the seasonal cycle of volume transport is only important locally. In models and observations, the dominant terms in the basin-average seasonal freshwater budget are the storages of freshwater between the ocean and sea ice, and the exchange between the two. The largest external source term is continental discharge in early summer, which is an order of magnitude smaller. The appearance of sea ice (extent and volume) and also ocean stratification in both the heat and freshwater budgets provides two links between the budgets and provides two mechanisms for feedback. One consequence of such an interaction is the fact that models with strong/weak seasonal surface heating also have strong/weak seasonal haline and temperature stratification. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Oceans AU - Ding, Yanni AU - Carton, James A AU - Chepurin, Gennady A AU - Steele, Michael AU - Hakkinen, Sirpa Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 2043 EP - 2057 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 4 SN - 2169-9275, 2169-9275 KW - experimental studies KW - sea water KW - heat flux KW - numerical models KW - sea ice KW - fresh water KW - marine transport KW - temperature KW - melting KW - transport KW - stratification KW - ice KW - digital simulation KW - solar radiation KW - heating KW - Arctic Ocean KW - seasonal variations KW - climate KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819897989?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Oceans&rft.atitle=Seasonal+heat+and+freshwater+cycles+in+the+Arctic+Ocean+in+CMIP5+coupled+models&rft.au=Ding%2C+Yanni%3BCarton%2C+James+A%3BChepurin%2C+Gennady+A%3BSteele%2C+Michael%3BHakkinen%2C+Sirpa&rft.aulast=Ding&rft.aufirst=Yanni&rft.date=2016-04-01&rft.volume=121&rft.issue=4&rft.spage=2043&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Oceans&rft.issn=21699275&rft_id=info:doi/10.1002%2F2015JC011124 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 42 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-09-16 N1 - SubjectsTermNotLitGenreText - Arctic Ocean; climate; digital simulation; experimental studies; fresh water; heat flux; heating; ice; marine transport; melting; numerical models; sea ice; sea water; seasonal variations; solar radiation; stratification; temperature; transport DO - http://dx.doi.org/10.1002/2015JC011124 ER - TY - JOUR T1 - Electric field generation in Martian dust devils AN - 1800397459; 2016-055909 JF - Icarus AU - Barth, Erika L AU - Farrell, William M AU - Rafkin, Scot C R Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 253 EP - 265 PB - Elsevier, New York, NY VL - 268 SN - 0019-1035, 0019-1035 KW - three-dimensional models KW - clastic sediments KW - grain size KW - electrodynamics KW - electrical field KW - Mars KW - triboelectric effect KW - simulation KW - dust devils KW - terrestrial planets KW - planets KW - dust KW - sediments KW - particles KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800397459?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Electric+field+generation+in+Martian+dust+devils&rft.au=Barth%2C+Erika+L%3BFarrell%2C+William+M%3BRafkin%2C+Scot+C+R&rft.aulast=Barth&rft.aufirst=Erika&rft.date=2016-04-01&rft.volume=268&rft.issue=&rft.spage=253&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.12.020 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 65 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-06-30 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - clastic sediments; dust; dust devils; electrical field; electrodynamics; grain size; Mars; particles; planets; sediments; simulation; terrestrial planets; three-dimensional models; triboelectric effect DO - http://dx.doi.org/10.1016/j.icarus.2015.12.020 ER - TY - JOUR T1 - Mass balance of Mars' residual south polar cap from CTX images and other data AN - 1800397309; 2016-055902 JF - Icarus AU - Thomas, P C AU - Calvin, W AU - Cantor, B AU - Haberle, R AU - James, P B AU - Lee, S W Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 118 EP - 130 PB - Elsevier, New York, NY VL - 268 SN - 0019-1035, 0019-1035 KW - albedo KW - imagery KW - erosion KW - atmosphere KW - Mars KW - mapping KW - erosion rates KW - Context Camera KW - polar caps KW - terrestrial planets KW - morphology KW - planets KW - geography KW - deposition KW - mass balance KW - age KW - thickness KW - temporal distribution KW - scarps KW - climate KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800397309?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mass+balance+of+Mars%27+residual+south+polar+cap+from+CTX+images+and+other+data&rft.au=Thomas%2C+P+C%3BCalvin%2C+W%3BCantor%2C+B%3BHaberle%2C+R%3BJames%2C+P+B%3BLee%2C+S+W&rft.aulast=Thomas&rft.aufirst=P&rft.date=2016-04-01&rft.volume=268&rft.issue=&rft.spage=118&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.12.038 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 46 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - Last updated - 2016-06-30 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - age; albedo; atmosphere; climate; Context Camera; deposition; erosion; erosion rates; geography; imagery; mapping; Mars; mass balance; morphology; planets; polar caps; scarps; temporal distribution; terrestrial planets; thickness DO - http://dx.doi.org/10.1016/j.icarus.2015.12.038 ER - TY - JOUR T1 - Stability within Jupiter's polar auroral "Swirl region" over moderate timescales AN - 1800396493; 2016-055904 JF - Icarus AU - Stallard, Tom S AU - Clarke, John T AU - Melin, Henrik AU - Miller, Steve AU - Nichols, Jon D AU - O'Donoghue, James AU - Johnson, Rosie E AU - Connerney, John E P AU - Satoh, Takehiko AU - Perry, Michael Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 145 EP - 155 PB - Elsevier, New York, NY VL - 268 SN - 0019-1035, 0019-1035 KW - ionosphere KW - Swirl region KW - polar regions KW - imagery KW - aurorae KW - magnetosphere KW - Jupiter KW - stability KW - atmosphere KW - infrared spectra KW - giant planets KW - protonated molecular hydrogen KW - planets KW - time factor KW - hydrogen KW - ultraviolet spectra KW - spectra KW - outer planets KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800396493?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Stability+within+Jupiter%27s+polar+auroral+%22Swirl+region%22+over+moderate+timescales&rft.au=Stallard%2C+Tom+S%3BClarke%2C+John+T%3BMelin%2C+Henrik%3BMiller%2C+Steve%3BNichols%2C+Jon+D%3BO%27Donoghue%2C+James%3BJohnson%2C+Rosie+E%3BConnerney%2C+John+E+P%3BSatoh%2C+Takehiko%3BPerry%2C+Michael&rft.aulast=Stallard&rft.aufirst=Tom&rft.date=2016-04-01&rft.volume=268&rft.issue=&rft.spage=145&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.12.044 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 36 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2016-06-30 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - atmosphere; aurorae; giant planets; hydrogen; imagery; infrared spectra; ionosphere; Jupiter; magnetosphere; outer planets; planets; polar regions; protonated molecular hydrogen; spectra; stability; Swirl region; time factor; ultraviolet spectra DO - http://dx.doi.org/10.1016/j.icarus.2015.12.044 ER - TY - JOUR T1 - Atmospheric tides in Gale Crater, Mars AN - 1800396338; 2016-055896 JF - Icarus AU - Guzewich, Scott D AU - Newman, C E AU - de la Torre Juarez, M AU - Wilson, R J AU - Lemmon, M AU - Smith, M D AU - Kahanpaa, H AU - Harri, A M Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 37 EP - 49 PB - Elsevier, New York, NY VL - 268 SN - 0019-1035, 0019-1035 KW - dust storms KW - albedo KW - general circulation models KW - thermal inertia KW - clastic sediments KW - solar forcing KW - atmosphere KW - Mars KW - Gale Crater KW - tides KW - terrestrial planets KW - planets KW - topography KW - dust KW - solar radiation KW - sediments KW - Mars Science Laboratory KW - diurnal variations KW - climate forcing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800396338?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Atmospheric+tides+in+Gale+Crater%2C+Mars&rft.au=Guzewich%2C+Scott+D%3BNewman%2C+C+E%3Bde+la+Torre+Juarez%2C+M%3BWilson%2C+R+J%3BLemmon%2C+M%3BSmith%2C+M+D%3BKahanpaa%2C+H%3BHarri%2C+A+M&rft.aulast=Guzewich&rft.aufirst=Scott&rft.date=2016-04-01&rft.volume=268&rft.issue=&rft.spage=37&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.12.028 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 48 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-06-30 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - albedo; atmosphere; clastic sediments; climate forcing; diurnal variations; dust; dust storms; Gale Crater; general circulation models; Mars; Mars Science Laboratory; planets; sediments; solar forcing; solar radiation; terrestrial planets; thermal inertia; tides; topography DO - http://dx.doi.org/10.1016/j.icarus.2015.12.028 ER - TY - JOUR T1 - Pathways for energization of Ca in Mercury's exosphere AN - 1800395965; 2016-055895 JF - Icarus AU - Killen, Rosemary M Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 32 EP - 36 PB - Elsevier, New York, NY VL - 268 SN - 0019-1035, 0019-1035 KW - calcium KW - alkaline earth metals KW - magnesium KW - shock waves KW - dissociation KW - photochemistry KW - atmosphere KW - impacts KW - temperature KW - exosphere KW - terrestrial planets KW - volatilization KW - planets KW - photolysis KW - metals KW - Mercury Planet KW - oxides KW - high temperature KW - electrons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800395965?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Pathways+for+energization+of+Ca+in+Mercury%27s+exosphere&rft.au=Killen%2C+Rosemary+M&rft.aulast=Killen&rft.aufirst=Rosemary&rft.date=2016-04-01&rft.volume=268&rft.issue=&rft.spage=32&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.12.035 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 39 N1 - PubXState - NY N1 - Last updated - 2016-06-30 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; atmosphere; calcium; dissociation; electrons; exosphere; high temperature; impacts; magnesium; Mercury Planet; metals; oxides; photochemistry; photolysis; planets; shock waves; temperature; terrestrial planets; volatilization DO - http://dx.doi.org/10.1016/j.icarus.2015.12.035 ER - TY - JOUR T1 - 1D-coupled photochemical model of neutrals, cations and anions in the atmosphere of Titan AN - 1800395851; 2016-055913 JF - Icarus AU - Dobrijevic, Michel AU - Loison, J C AU - Hickson, K M AU - Gronoff, G Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 313 EP - 339 PB - Elsevier, New York, NY VL - 268 SN - 0019-1035, 0019-1035 KW - ionosphere KW - icy satellites KW - anions KW - one-dimensional models KW - photochemistry KW - coupling KW - atmosphere KW - ions KW - nitrogen KW - absorption KW - organic compounds KW - stratosphere KW - chemical reactions KW - hydrogen KW - carbon KW - hydrocarbons KW - Titan Satellite KW - cations KW - satellites KW - uncertainty KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800395851?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=1D-coupled+photochemical+model+of+neutrals%2C+cations+and+anions+in+the+atmosphere+of+Titan&rft.au=Dobrijevic%2C+Michel%3BLoison%2C+J+C%3BHickson%2C+K+M%3BGronoff%2C+G&rft.aulast=Dobrijevic&rft.aufirst=Michel&rft.date=2016-04-01&rft.volume=268&rft.issue=&rft.spage=313&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.12.045 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 58 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-06-30 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - absorption; anions; atmosphere; carbon; cations; chemical reactions; coupling; hydrocarbons; hydrogen; icy satellites; ionosphere; ions; nitrogen; one-dimensional models; organic compounds; photochemistry; satellites; stratosphere; Titan Satellite; uncertainty DO - http://dx.doi.org/10.1016/j.icarus.2015.12.045 ER - TY - JOUR T1 - Meteorites found on Misfits Flat dry lake, Nevada AN - 1800392407; 2016-056363 AB - Meteorites have been found on the small Misfits Flat dry lakebed near Stagecoach, Nevada (119.382W, +39.348N). Since the first find on Sept. 22, 2013, a total of 58 stones of weathering stage W2/3 with a combined mass of 339 g have been collected in 19 visits to the area. This small (3.3 X 3.6 km) lakebed is now a newly designated dense collection area (DCA). Most meteorites were found in a small 350 X 180 m area along the north shore and most are fragments of several broken individual stones. Three of these fragments were classified as an LL4/5 of shock stage S2, now named Misfits Flat 001, one of which (stone MF33) fell 8.1 + or - 1.3 ka ago based on the (super 14) C terrestrial age, assuming it came from a 20-80 cm diameter meteoroid. In addition, a small darkly crusted meteorite MF34, now named Misfits Flat 002, was found 820 m WSW from the main mass. This meteorite is classified as an LL5 ordinary chondrite with shock stage S4/5. The meteorite is saturated in (super 14) C at 63 dpm kg (super -1) , suggesting it originated from the center of a 0.5 m diameter meteoroid, or deep inside a approximately 1.0 m meteoroid, less than 300 yr ago. Accounts exist of a fireball seen at 13:15 UT on March 2, 1895, that are consistent with the find location of Misfits Flat 002. Abstract Copyright Published 2016. This article is a U.S. Government work and is in the public domain in the USA. JF - Meteoritics & Planetary Science AU - Harlan, Scott AU - Jenniskens, Peter AU - Zolensky, Michael E AU - Yin, Qing-Zhu AU - Verosub, Kenneth L AU - Rowland, Douglas J AU - Sanborn, Matthew AU - Huyskens, Magdalena AU - Creager, Emily R AU - Jull, A J Timothy Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 757 EP - 772 PB - Meteoritical Society, Fayetteville, AR VL - 51 IS - 4 SN - 1086-9379, 1086-9379 KW - United States KW - ordinary chondrites KW - stony meteorites KW - isotopes KW - mass spectra KW - playas KW - meteoroids KW - Lyon County Nevada KW - Holocene KW - mass KW - Cenozoic KW - meteorites KW - radioactive isotopes KW - mineral composition KW - carbon KW - Misfits Flat Meteorites KW - spectra KW - chondrites KW - chemical composition KW - Nevada KW - Quaternary KW - Stagecoach Nevada KW - terrestrial age KW - LL chondrites KW - metamorphism KW - weathering KW - ICP mass spectra KW - magnetic susceptibility KW - classification KW - fireballs KW - C-14 KW - Misfits Flat 002 KW - shock metamorphism KW - Misfits Flat 001 KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800392407?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+found+on+Misfits+Flat+dry+lake%2C+Nevada&rft.au=Harlan%2C+Scott%3BJenniskens%2C+Peter%3BZolensky%2C+Michael+E%3BYin%2C+Qing-Zhu%3BVerosub%2C+Kenneth+L%3BRowland%2C+Douglas+J%3BSanborn%2C+Matthew%3BHuyskens%2C+Magdalena%3BCreager%2C+Emily+R%3BJull%2C+A+J+Timothy&rft.aulast=Harlan&rft.aufirst=Scott&rft.date=2016-04-01&rft.volume=51&rft.issue=4&rft.spage=757&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12619 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 45 N1 - PubXState - AR N1 - Document feature - illus. incl. 4 tables, sketch map N1 - Last updated - 2016-11-17 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - C-14; carbon; Cenozoic; chemical composition; chondrites; classification; fireballs; Holocene; ICP mass spectra; isotopes; LL chondrites; Lyon County Nevada; magnetic susceptibility; mass; mass spectra; metamorphism; meteorites; meteoroids; mineral composition; Misfits Flat Meteorites; Misfits Flat 001; Misfits Flat 002; Nevada; ordinary chondrites; playas; Quaternary; radioactive isotopes; shock metamorphism; spectra; Stagecoach Nevada; stony meteorites; terrestrial age; United States; weathering DO - http://dx.doi.org/10.1111/maps.12619 ER - TY - JOUR T1 - CO (sub 2) release due to impact devolatilization of carbonate; results of shock experiments AN - 1800392136; 2016-056356 AB - A study of pure, single crystal calcite shocked to pressures from 9.0 to 60.8 GPa was conducted to address contradictory data for carbonate shock behavior. The recovered materials were analyzed optically and by transmission electron microscopy (TEM), as well as by thermogravimetry (TGA), X-ray diffraction (XRD), and Raman-spectroscopy. In thin section, progressive comminution of calcite is observed although grains remain birefringent to at least 60.8 GPa. TGA analysis reveals a positive correlation between percent of mass loss due to shock and increasing shock pressure (R = 0.77) and suggests that shock loading leads to the modest removal of structural volatiles in this pressure range. XRD patterns of shocked Iceland spar samples produce peaks that are qualitatively and quantitatively less intense, more diffuse, and shift to lower degrees 2theta . However, the regularity observed in these shocked powder patterns suggests that structures with very uniform unit cell separations persist to shock pressures as high as 60.8 GPa. Raman spectral analyses indicate no band asymmetry and no systematic peak shifting or broadening. TEM micrographs display progressively diminishing crystallite domain sizes. Selected area electron diffraction (SAED) patterns reveal no signatures of amorphous material. These data show that essentially intact calcite is recovered at shock pressures up to 60.8 GPa with only slight mass loss ( approximately 7%). This work suggests that the amount of CO (sub 2) gas derived from shock devolatilization of carbonate by large meteorite impacts into carbonate targets has been (substantially) overestimated. Abstract Copyright Published 2016. This article is a U.S. Government work and is in the public domain in the USA. JF - Meteoritics & Planetary Science AU - Bell, Mary Sue Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 619 EP - 646 PB - Meteoritical Society, Fayetteville, AR VL - 51 IS - 4 SN - 1086-9379, 1086-9379 KW - X-ray diffraction data KW - electron diffraction data KW - microstructure KW - unit cell KW - carbon dioxide KW - Iceland spar KW - volatilization KW - chemical reactions KW - spectra KW - geochemistry KW - P-T conditions KW - experimental studies KW - pressure KW - loading KW - electron microscopy data KW - cosmochemistry KW - impacts KW - deformation KW - metamorphism KW - high pressure KW - TEM data KW - calcite KW - volatiles KW - Raman spectra KW - planetology KW - petrography KW - TGA data KW - carbonates KW - shock metamorphism KW - birefringence KW - 04:Extraterrestrial geology KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800392136?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=CO+%28sub+2%29+release+due+to+impact+devolatilization+of+carbonate%3B+results+of+shock+experiments&rft.au=Bell%2C+Mary+Sue&rft.aulast=Bell&rft.aufirst=Mary&rft.date=2016-04-01&rft.volume=51&rft.issue=4&rft.spage=619&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12613 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 87 N1 - PubXState - AR N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2016-06-30 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - birefringence; calcite; carbon dioxide; carbonates; chemical reactions; cosmochemistry; deformation; electron diffraction data; electron microscopy data; experimental studies; geochemistry; high pressure; Iceland spar; impacts; loading; metamorphism; microstructure; P-T conditions; petrography; planetology; pressure; Raman spectra; shock metamorphism; spectra; TEM data; TGA data; unit cell; volatiles; volatilization; X-ray diffraction data DO - http://dx.doi.org/10.1111/maps.12613 ER - TY - JOUR T1 - X-ray computed tomography imaging; a not-so-nondestructive technique AN - 1800391954; 2016-056367 AB - X-ray computed tomography has become a popular means for examining the interiors of meteorites and has been advocated for routine curation and for the examination of samples returned by missions. Here, we report the results of a blind test that indicate that CT imaging deposits a considerable radiation dose in a meteorite and seriously compromises its natural radiation record. Ten vials of the Bruderheim L6 chondrite were placed in CT imager and exposed to radiation levels typical for meteorite studies. Half were retained as controls. Their thermoluminescence (TL) properties were then measured in a blind test. Five of the samples had TL data unaltered from their original ( approximately 10 cps) while five had very strong signals ( approximately 20,000 cps). It was therefore very clear which samples had been in the CT scanner. For comparison, the natural TL signal from Antarctic meteorites is approximately 5000-50,000 cps. Using the methods developed for Antarctic meteorites, the apparent dose absorbed by the five test samples was calculated to be 83 + or - 5 krad, comparable with the highest doses observed in Antarctic meteorites and freshly fallen meteorites. While these results do not preclude the use of CT scanners when scientifically justified, it should be remembered that the record of radiation exposure to ionizing radiations for the sample will be destroyed and that TL, or the related optically stimulated luminescence, are the primary modern techniques for radiation dosimetry. This is particularly important with irreplaceable samples, such as meteorite main masses, returned samples, and samples destined for archive. Abstract Copyright The Meteoritical Society, 2016. JF - Meteoritics & Planetary Science AU - Sears, Derek W G AU - Sears, Hazel AU - Ebel, Denton S AU - Wallace, Sean AU - Friedrich, Jon M Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 833 EP - 838 PB - Meteoritical Society, Fayetteville, AR VL - 51 IS - 4 SN - 1086-9379, 1086-9379 KW - tomography KW - methods KW - ordinary chondrites KW - experimental studies KW - stony meteorites KW - radioactivity KW - radiation damage KW - thermoluminescence KW - L chondrites KW - Bruderheim Meteorite KW - meteorites KW - curation KW - X-ray computed tomography KW - optically stimulated luminescence KW - computed tomography KW - X-ray analysis KW - chondrites KW - 05B:Petrology of meteorites and tektites KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800391954?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=X-ray+computed+tomography+imaging%3B+a+not-so-nondestructive+technique&rft.au=Sears%2C+Derek+W+G%3BSears%2C+Hazel%3BEbel%2C+Denton+S%3BWallace%2C+Sean%3BFriedrich%2C+Jon+M&rft.aulast=Sears&rft.aufirst=Derek+W&rft.date=2016-04-01&rft.volume=51&rft.issue=4&rft.spage=833&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12622 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 20 N1 - PubXState - AR N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-06-30 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - Bruderheim Meteorite; chondrites; computed tomography; curation; experimental studies; L chondrites; meteorites; methods; optically stimulated luminescence; ordinary chondrites; radiation damage; radioactivity; stony meteorites; thermoluminescence; tomography; X-ray analysis; X-ray computed tomography DO - http://dx.doi.org/10.1111/maps.12622 ER - TY - JOUR T1 - Rare earth element measurements and mapping of minerals in the Allende CAI, 7R19-1, by NanoSIMS ion microprobe AN - 1800391405; 2016-056366 AB - We have established analytical procedures for quantitative rare earth element (REE) measurements by NanoSIMS 50L ion microprobe with 2-10 mu m spatial resolution. Measurements are performed by multidetection using energy filtering under several static magnetic field settings. Relative sensitivity factors and REE oxide/REE element secondary ion ratios that we determined for the NanoSIMS match values previously determined for other ion microprobes. REE measurements of 100 ppm REE glass standards yielded reproducibility and accuracy of 0.5-2.5% and 5-15%, respectively. REE measurements of minerals of an Allende type-A CAI, 7R19-1, were performed using three different methods: spot analysis, line profile, and imaging. These data are in excellent agreement with previous REE measurements of this inclusion by IMS-3f ion microprobe. The higher spatial resolution NanoSIMS measurements provide additional insight into the formation process of this CAI and offer a promising new tool for analysis of fine-grained and complexly zoned materials. Abstract Copyright The Meteoritical Society, 2016. JF - Meteoritics & Planetary Science AU - Ito, Motoo AU - Messenger, Scott Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 818 EP - 832 PB - Meteoritical Society, Fayetteville, AR VL - 51 IS - 4 SN - 1086-9379, 1086-9379 KW - sorosilicates KW - silicates KW - methods KW - stony meteorites KW - ion probe data KW - calcium-aluminum inclusions KW - mass spectra KW - CV chondrites KW - Allende Meteorite KW - meteorites KW - melilite group KW - pyroxene group KW - clinopyroxene KW - melilite KW - standard materials KW - inclusions KW - orthosilicates KW - spectra KW - rare earths KW - fassaite KW - diopside KW - chondrites KW - chain silicates KW - precision KW - carbonaceous chondrites KW - metals KW - NanoSIMS KW - accuracy KW - 05B:Petrology of meteorites and tektites KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800391405?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Rare+earth+element+measurements+and+mapping+of+minerals+in+the+Allende+CAI%2C+7R19-1%2C+by+NanoSIMS+ion+microprobe&rft.au=Ito%2C+Motoo%3BMessenger%2C+Scott&rft.aulast=Ito&rft.aufirst=Motoo&rft.date=2016-04-01&rft.volume=51&rft.issue=4&rft.spage=818&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12623 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 44 N1 - PubXState - AR N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2016-06-30 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - accuracy; Allende Meteorite; calcium-aluminum inclusions; carbonaceous chondrites; chain silicates; chondrites; clinopyroxene; CV chondrites; diopside; fassaite; inclusions; ion probe data; mass spectra; melilite; melilite group; metals; meteorites; methods; NanoSIMS; orthosilicates; precision; pyroxene group; rare earths; silicates; sorosilicates; spectra; standard materials; stony meteorites DO - http://dx.doi.org/10.1111/maps.12623 ER - TY - JOUR T1 - Ni/S/Cl systematics and the origin of impact-melt glasses in Martian meteorite Elephant Moraine 79001 AN - 1800391213; 2016-056358 AB - Martian meteorite Elephant Moraine A79001 (EET 79001) has received considerable attention for the unusual composition of its shock melt glass, particularly its enrichment in sulfur relative to the host shergottite. It has been hypothesized that Martian regolith was incorporated into the melt or, conversely, that the S-enrichment stems from preferential melting of sulfide minerals in the host rock during shock. We present results from an electron microprobe study of EET 79001 including robust measurements of major and trace elements in the shock melt glass (S, Cl, Ni, Co, V, and Sc) and minerals in the host rock (Ni, Co, and V). We find that both S and major element abundances can be reconciled with previous hypotheses of regolith incorporation and/or excess sulfide melt. However, trace element characteristics of the shock melt glass, particularly Ni and Cl abundances relative to S, cannot be explained either by the incorporation of regolith or sulfide minerals. We therefore propose an alternative hypothesis whereby, prior to shock melting, portions of EET 79001 experienced acid-sulfate leaching of the mesostasis, possibly groundmass feldspar, and olivine, producing Al-sulfates that were later incorporated into the shock melt, which then quenched to glass. Such activity in the Martian near-surface is supported by observations from the Mars Exploration Rovers and laboratory experiments. Our preimpact alteration model, accompanied by the preferential survival of olivine and excess melting of feldspar during impact, explains the measured trace element abundances better than either the regolith incorporation or excess sulfide melting hypothesis does. Abstract Copyright Published 2016. This article is a U.S. Government work and is in the public domain in the USA. JF - Meteoritics & Planetary Science AU - Schrader, Christian M AU - Cohen, Barbara A AU - Donovan, John J AU - Vicenzi, Edward P Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 663 EP - 680 PB - Meteoritical Society, Fayetteville, AR VL - 51 IS - 4 SN - 1086-9379, 1086-9379 KW - stony meteorites KW - Martian meteorites KW - enrichment KW - halogens KW - Mars KW - Elephant Moraine Meteorites KW - metasomatism KW - melts KW - electron probe data KW - SNC Meteorites KW - meteorites KW - impact melts KW - EETA 79001 KW - melting KW - major elements KW - metamorphic rocks KW - hydrothermal alteration KW - trace elements KW - depletion KW - chlorine KW - chemical weathering KW - impactites KW - secondary minerals KW - achondrites KW - weathering KW - terrestrial planets KW - planets KW - shergottite KW - metals KW - nickel KW - sulfur KW - sulfides KW - regolith KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800391213?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Ni%2FS%2FCl+systematics+and+the+origin+of+impact-melt+glasses+in+Martian+meteorite+Elephant+Moraine+79001&rft.au=Schrader%2C+Christian+M%3BCohen%2C+Barbara+A%3BDonovan%2C+John+J%3BVicenzi%2C+Edward+P&rft.aulast=Schrader&rft.aufirst=Christian&rft.date=2016-04-01&rft.volume=51&rft.issue=4&rft.spage=663&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12612 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 61 N1 - PubXState - AR N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2016-06-30 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; chemical weathering; chlorine; depletion; EETA 79001; electron probe data; Elephant Moraine Meteorites; enrichment; halogens; hydrothermal alteration; impact melts; impactites; major elements; Mars; Martian meteorites; melting; melts; metals; metamorphic rocks; metasomatism; meteorites; nickel; planets; regolith; secondary minerals; shergottite; SNC Meteorites; stony meteorites; sulfides; sulfur; terrestrial planets; trace elements; weathering DO - http://dx.doi.org/10.1111/maps.12612 ER - TY - JOUR T1 - Microstructure-specific carbon isotopic signatures of organic matter from approximately 3.5 Ga cherts of the Pilbara Craton support a biologic origin AN - 1797539682; 2016-051071 AB - The approximately 3.5 Ga Dresser Formation from the North Pole Dome of the Pilbara Craton (Western Australia) contains some of the oldest evidence for life on Earth. Here, we present a detailed study of microstructure-specific carbon isotopic composition of organic matter (OM) preserved in Dresser Formation bedded cherts and hydrothermal chert vein using in situ Secondary-Ion Mass Spectrometry (SIMS). The OM in these rocks occurs mainly as clots that, together with minor fine OM layers and laminae, are considered primary textures formed prior to host rock lithification. Other than rare OM-rich stylolites, no evidence was found for later OM migration beyond the micrometer scale. Average delta (super 13) C(OM) values in specific microstructural types range between -33.6 ppm and -25.7 ppm. No correlation is seen between measured delta (super 13) C values and H/C ratios in the studied OM microstructures. This lack of correlation and the low metamorphic grade of the rocks studied argue against significant modification of OM isotopic composition by later metamorphic alteration. It is thus concluded that the range of delta (super 13) C values found in the samples represents primary OM isotopic variability. Within some individual samples variable delta (super 13) C(OM) values are correlated with specific microstructural types. This observation is not consistent with solely abiotic OM formation via Fisher-Tropsch type reactions. When compared with associated delta (super 13) C(ankerite) values, average delta (super 13) C(OM) values indicate C isotopic fractionation [Delta (super 13) C(Ank-OM)] of 25-33 ppm, which translates to dissolved CO (sub 2) -OM isotopic fractionation [Delta (super 13) C(CO (sub 2) -OM)] of 20-30 ppm. This range of Delta (super 13) C(CO (sub 2) -OM) is consistent with enzymatic C fixation via the Calvin cycle utilized by photoautotrophs and the reductive acetyl-CoA pathway utilized by chemolithoautotrophs. Photosynthetic OM formation is supported by the relatively shallow water depth inferred for the Dresser environment and the restricted occurrence of stromatolites to shallow water deposits in this unit, whereas chemolithosynthesis is supported by the abundance of OM in sub-seafloor hydrothermal chert veins. The range of delta (super 13) C(OM) values observed in the samples may therefore represent the remains of different organisms utilizing different C-fixation pathways. Other biologic effects, such as the growth rate and density of microbial communities, and further heterotrophic overprinting of the autotrophic biomass may have also contributed to the observed range of delta (super 13) C(OM) values. Abstract Copyright (2016) Elsevier, B.V. JF - Precambrian Research AU - Morag, Navot AU - Williford, Kenneth H AU - Kitajima, Kouki AU - Philippot, Pascal AU - Van Kranendonk, Martin J AU - Lepot, Kevin AU - Thomazo, Christophe AU - Valley, John W Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 429 EP - 449 PB - Elsevier, Amsterdam VL - 275 SN - 0301-9268, 0301-9268 KW - Pilbara Craton KW - Warrawoona Group KW - lithostratigraphy KW - volcanic rocks KW - U/Pb KW - ion probe data KW - isotopes KW - igneous rocks KW - Dresser Formation KW - Western Australia KW - mass spectra KW - stable isotopes KW - sedimentary rocks KW - dates KW - carbon KW - basalts KW - sedimentology KW - absolute age KW - Australia KW - Archean KW - spectra KW - depositional environment KW - sedimentary structures KW - chemically precipitated rocks KW - Precambrian KW - Australasia KW - isotope ratios KW - biogenic structures KW - biochemistry KW - C-13/C-12 KW - sedimentation KW - basin analysis KW - stromatolites KW - organic compounds KW - biogenic processes KW - paleoenvironment KW - North Pole KW - chert KW - carbonates KW - microfossils KW - 12:Stratigraphy KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1797539682?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Precambrian+Research&rft.atitle=Microstructure-specific+carbon+isotopic+signatures+of+organic+matter+from+approximately+3.5+Ga+cherts+of+the+Pilbara+Craton+support+a+biologic+origin&rft.au=Morag%2C+Navot%3BWilliford%2C+Kenneth+H%3BKitajima%2C+Kouki%3BPhilippot%2C+Pascal%3BVan+Kranendonk%2C+Martin+J%3BLepot%2C+Kevin%3BThomazo%2C+Christophe%3BValley%2C+John+W&rft.aulast=Morag&rft.aufirst=Navot&rft.date=2016-04-01&rft.volume=275&rft.issue=&rft.spage=429&rft.isbn=&rft.btitle=&rft.title=Precambrian+Research&rft.issn=03019268&rft_id=info:doi/10.1016%2Fj.precamres.2016.01.014 L2 - http://www.sciencedirect.com/science/journal/03019268 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 132 N1 - Document feature - illus. incl. 1 table, geol. sketch map N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-08-18 N1 - CODEN - PCBRBY N1 - SubjectsTermNotLitGenreText - absolute age; Archean; Australasia; Australia; basalts; basin analysis; biochemistry; biogenic processes; biogenic structures; C-13/C-12; carbon; carbonates; chemically precipitated rocks; chert; dates; depositional environment; Dresser Formation; igneous rocks; ion probe data; isotope ratios; isotopes; lithostratigraphy; mass spectra; microfossils; North Pole; organic compounds; paleoenvironment; Pilbara Craton; Precambrian; sedimentary rocks; sedimentary structures; sedimentation; sedimentology; spectra; stable isotopes; stromatolites; U/Pb; volcanic rocks; Warrawoona Group; Western Australia DO - http://dx.doi.org/10.1016/j.precamres.2016.01.014 ER - TY - JOUR T1 - Simulating the Black Saturday 2009 smoke plume with an interactive composition-climate model: Sensitivity to emissions amount, timing, and injection height AN - 1794501155; PQ0003149723 AB - We simulated the high-altitude smoke plume from the early February 2009 Black Saturday bushfires in southeastern Australia using the NASA Goddard Institute for Space Studies ModelE2. To the best of our knowledge, this is the first single-plume analysis of biomass burning emissions injected directly into the upper troposphere/lower stratosphere (UTLS) using a full-complexity composition-climate model. We compared simulated carbon monoxide (CO) to a new Aura Tropospheric Emission Spectrometer/Microwave Limb Sounder joint CO retrieval, focusing on the plume's initial transport eastward, anticyclonic circulation to the north of New Zealand, westward transport in the lower stratospheric easterlies, and arrival over Africa at the end of February. Our goal was to determine the sensitivity of the simulated plume to prescribed injection height, emissions amount, and emissions timing from different sources for a full-complexity model when compared to Aura. The most realistic plumes were obtained using injection heights in the UTLS, including one drawn from ground-based radar data. A 6h emissions pulse or emissions tied to independent estimates of hourly fire behavior produced a more realistic plume in the lower stratosphere compared to the same emissions amount being released evenly over 12 or 24h. Simulated CO in the plume was highly sensitive to the differences between emissions amounts estimated from the Global Fire Emissions Database and from detailed, ground-based estimates of fire growth. The emissions amount determined not only the CO concentration of the plume but also the proportion of the plume that entered the stratosphere. We speculate that this is due to either or both nonlinear CO loss with a weakened OH sink or plume self-lofting driven by shortwave absorption of the coemitted aerosols. Key Points * Stratospheric plume fate was highly sensitive to emissions height, amount, and timing * There were nonlinear relationships between emissions and atmospheric CO in the UTLS * A possible reason is diabatic self-lofting of the plume through shortwave absorption JF - Journal of Geophysical Research: Atmospheres AU - Field, Robert D AU - Luo, Ming AU - Fromm, Mike AU - Voulgarakis, Apostolos AU - Mangeon, Stephane AU - Worden, John AD - NASA Goddard Institute for Space Studies, New York, New York, USA. Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 4296 EP - 4316 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 121 IS - 8 SN - 2169-897X, 2169-897X KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - PSE, Australia KW - Atmospheric pollution models KW - Sinks KW - Anticyclonic circulation KW - Injection KW - Carbon monoxide KW - Growth KW - Carbon KW - Model sensitivity KW - Microwaves KW - PSE, New Zealand KW - Absorption KW - Plumes KW - Modelling KW - Fires KW - Aerosols KW - Fire behavior KW - Troposphere KW - Smoke plumes KW - Stratosphere KW - Smoke KW - Databases KW - Radar KW - Africa KW - Q2 09102:Institutes and organizations KW - M2 551.510.42:Air Pollution (551.510.42) KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1794501155?accountid=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+Geophysical+Research%3A+Atmospheres&rft.atitle=Simulating+the+Black+Saturday+2009+smoke+plume+with+an+interactive+composition-climate+model%3A+Sensitivity+to+emissions+amount%2C+timing%2C+and+injection+height&rft.au=Field%2C+Robert+D%3BLuo%2C+Ming%3BFromm%2C+Mike%3BVoulgarakis%2C+Apostolos%3BMangeon%2C+Stephane%3BWorden%2C+John&rft.aulast=Field&rft.aufirst=Robert&rft.date=2016-04-01&rft.volume=121&rft.issue=8&rft.spage=4296&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2015JD024343 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-06-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Smoke; Carbon monoxide; Growth; Aerosols; Microwaves; Troposphere; Stratosphere; Modelling; Fires; Model sensitivity; Atmospheric pollution models; Fire behavior; Radar; Anticyclonic circulation; Smoke plumes; Databases; Carbon; Absorption; Sinks; Injection; Plumes; PSE, Australia; PSE, New Zealand; Africa DO - http://dx.doi.org/10.1002/2015JD024343 ER - TY - JOUR T1 - HLA-G expression and role in advanced-stage classical Hodgkin lymphoma AN - 1793764057 AB - Non-classical human leucocyte antigen (HLA)-G class I molecules have an important role in tumor immune escape mechanisms. We investigated HLA-G expression in lymphonode biopsies taken from 8 controls and 20 patients with advanced-stage classical Hodgkin lymphoma (cHL), in relationship to clinical outcomes and the HLA-G 14-basepair (14-bp) deletion-insertion (del-ins) polymorphism. Lymphnode tissue sections were stained using a specific murine monoclonal HLA-G antibody. HLA-G protein expression was higher in cHL patients than controls. In the group of PET-2 positive (positron emission tomography carried out after 2 cycles of standard chemotherapy) patients with a 2-year progression-free survival rate (PFS) of 40%, we observed high HLA-G protein expression within the tumor microenvironment with low expression on Hodgkin and Reed-Sternberg (HRS) cells. Conversely, PET-2 negative patients with a PFS of 86% had higher HLA-G protein expression levels on HRS cells compared to the microenvironment. Lower expression on HRS cells was significantly associated with the HLA-G 14-bp ins/ins genotype. These preliminary data suggest that the immunohistochemical pattern of HLA-G protein expression may represent a useful tool for a tailored therapy in patients with cHL, based on the modulation of HLA-G expression in relation to achievement of negative PET-2.These preliminary data suggest that the immunohistochemical pattern of HLA-G protein expression may represent a useful tool for a tailored therapy in patients with cHL, based on the modulation of HLA-G expression in relation to achievement of negative PET-2. JF - European Journal of Histochemistry : EJH AU - Caocci, G AU - Greco, M AU - Fanni, D AU - Senes, G AU - Littera, R AU - Lai, S AU - Risso, P AU - Carcassi, C AU - Faa, G AU - Nasa, G La Y1 - 2016 PY - 2016 DA - 2016 CY - Pavia PB - PAGEPress Publications VL - 60 IS - 2 SN - 1121760X KW - Biology--Cytology And Histology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1793764057?accountid=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=European+Journal+of+Histochemistry+%3A+EJH&rft.atitle=HLA-G+expression+and+role+in+advanced-stage+classical+Hodgkin+lymphoma&rft.au=Caocci%2C+G%3BGreco%2C+M%3BFanni%2C+D%3BSenes%2C+G%3BLittera%2C+R%3BLai%2C+S%3BRisso%2C+P%3BCarcassi%2C+C%3BFaa%2C+G%3BNasa%2C+G+La&rft.aulast=Caocci&rft.aufirst=G&rft.date=2016-04-01&rft.volume=60&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=European+Journal+of+Histochemistry+%3A+EJH&rft.issn=1121760X&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright PAGEPress Publications 2016 N1 - Last updated - 2016-06-04 ER - TY - JOUR T1 - QBO modulation of the mesopause gravity wave momentum flux over Tierra del Fuego AN - 1790945769; PQ0003114416 AB - The interannual variability of the mesosphere and lower thermosphere (MLT) gravity wave momentum flux over southern midlatitudes (53.7 degree S) has been studied using more than 7 years of meteor radar observations at Rio Grande, Argentina. A modulation, with periods similar to that of the equatorial stratospheric quasi-biennial oscillation (QBO), is observed in the vertical flux of zonal as well as meridional momentum. The QBO signal is largest in the zonal component during summer and is in phase with the stratospheric QBO at 50 hPa (21 km). The relation between the stratospheric QBO and the QBO modulation in the MLT gravity wave forcing (derived from the divergence of the momentum flux) was found to be consistent with that expected from the Holton-Tan effect coupled to the interhemispheric coupling mechanism. These results provide the first observational support for the existence of the midlatitude gravity wave forcing anomalies as hypothesized in the interhemispheric coupling mechanism. Key Points * A quasi-biennial oscillation is observed in the midlatitude MLT gravity wave momentum flux * The QBO modulation is best explained by interhemispheric coupling to the Holton-Tan effect JF - Geophysical Research Letters AU - Wit, R J AU - Janches, D AU - Fritts, D C AU - Hibbins, R E AD - Space Weather Laboratory, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA. Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 4049 EP - 4055 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 43 IS - 8 SN - 0094-8276, 0094-8276 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Gravity Waves KW - Quasi-biennial oscillation KW - Variability KW - Divergence KW - Vertical flux KW - PSW, Argentina, Tierra del Fuego KW - Interannual variability KW - Radar KW - Gravity waves KW - Meteor radars KW - Momentum flux KW - Fluctuations KW - Momentum transfer KW - Q2 09262:Methods and instruments KW - SW 0810:General KW - M2 52:C. Astrophysics (52) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790945769?accountid=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=Geophysical+Research+Letters&rft.atitle=QBO+modulation+of+the+mesopause+gravity+wave+momentum+flux+over+Tierra+del+Fuego&rft.au=Wit%2C+R+J%3BJanches%2C+D%3BFritts%2C+D+C%3BHibbins%2C+R+E&rft.aulast=Wit&rft.aufirst=R&rft.date=2016-04-01&rft.volume=43&rft.issue=8&rft.spage=4049&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2016GL068599 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Gravity waves; Momentum transfer; Quasi-biennial oscillation; Interannual variability; Meteor radars; Divergence; Momentum flux; Vertical flux; Gravity Waves; Variability; Radar; Fluctuations; PSW, Argentina, Tierra del Fuego DO - http://dx.doi.org/10.1002/2016GL068599 ER - TY - JOUR T1 - Frequency and impact of summertime stratospheric intrusions over Maryland during DISCOVER-AQ (2011): New evidence from NASA's GEOS-5 simulations AN - 1787981651; PQ0002975289 AB - Aircraft observations and ozonesonde profiles collected on 14 and 27 July 2011, during the Maryland month-long Deriving Information on Surface conditions from Column and Vertically Resolved Observations Relevant to Air Quality (DISCOVER-AQ) campaign, indicate the presence of stratospheric air just above the planetary boundary layer (PBL). This raises the question of whether summer stratospheric intrusions (SIs) elevate surface ozone levels and to what degree they influence background ozone levels and contribute to ozone production. We used idealized stratospheric air tracers, along with observations, to determine the frequency and extent of SIs in Maryland during July 2011. On 4 of 14 flight days, SIs were detected in layers that the aircraft encountered above the PBL from the coincidence of enhanced ozone, moderate CO, and low moisture. Satellite observations of lower tropospheric humidity confirmed the occurrence of synoptic-scale influence of SIs as do simulations with the GEOS-5 atmospheric general circulation model. The evolution of GEOS-5 stratospheric air tracers agrees with the timing and location of observed stratospheric influence and indicates that more than 50% of air in SI layers above the PBL had resided in the stratosphere within the previous 14days. Despite having a strong influence in the lower free troposphere, these events did not significantly affect surface ozone, which remained low on intrusion days. The model indicates similar frequencies of stratospheric influence during all summers from 2009 to 2013. GEOS-5 results suggest that over Maryland, the strong inversion capping the summer PBL limits downward mixing of stratospheric air during much of the day, helping to preserve low surface ozone associated with frontal passages that precede SIs. Key Points * Eastern U.S. stratospheric intrusions can strongly influence composition of lower free troposphere * High-resolution global models reproduce temporal evolution and dynamical structure of these events * Summertime stratospheric intrusions have implications for air quality JF - Journal of Geophysical Research: Atmospheres AU - Ott, Lesley E AU - Duncan, Bryan N AU - Thompson, Anne M AU - Diskin, Glenn AU - Fasnacht, Zachary AU - Langford, Andrew O AU - Lin, Meiyun AU - Molod, Andrea M AU - Nielsen, JEric AU - Pusede, Sally E AU - Wargan, Krzysztof AU - Weinheimer, Andrew J AU - Yoshida, Yasuko AD - NASA Goddard Space Flight Center, Greenbelt, Maryland, USA. Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 3687 EP - 3706 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 121 IS - 7 SN - 2169-897X, 2169-897X KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Boundary Layers KW - Air quality KW - Carbon monoxide KW - Tracers KW - Ozone in troposphere KW - Ozone production KW - Aircraft KW - Ozonesondes KW - Tropospheric humidity KW - Atmospheric boundary layer KW - Ozone KW - Modelling KW - Atmospheric pollution KW - Simulation Analysis KW - Aircraft observations KW - Troposphere KW - Humidity KW - Atmospheric circulation KW - Stratosphere KW - ANW, USA, Maryland KW - Inversions KW - Satellite data KW - Numerical simulations KW - General circulation models KW - Boundary layers KW - Evolution KW - M2 551.510.42:Air Pollution (551.510.42) KW - SW 0810:General KW - Q2 09105:Research programmes and expeditions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1787981651?accountid=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+Geophysical+Research%3A+Atmospheres&rft.atitle=Frequency+and+impact+of+summertime+stratospheric+intrusions+over+Maryland+during+DISCOVER-AQ+%282011%29%3A+New+evidence+from+NASA%27s+GEOS-5+simulations&rft.au=Ott%2C+Lesley+E%3BDuncan%2C+Bryan+N%3BThompson%2C+Anne+M%3BDiskin%2C+Glenn%3BFasnacht%2C+Zachary%3BLangford%2C+Andrew+O%3BLin%2C+Meiyun%3BMolod%2C+Andrea+M%3BNielsen%2C+JEric%3BPusede%2C+Sally+E%3BWargan%2C+Krzysztof%3BWeinheimer%2C+Andrew+J%3BYoshida%2C+Yasuko&rft.aulast=Ott&rft.aufirst=Lesley&rft.date=2016-04-01&rft.volume=121&rft.issue=7&rft.spage=3687&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2015JD024052 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Carbon monoxide; Boundary layers; Humidity; Troposphere; Atmospheric circulation; Stratosphere; Inversions; Modelling; Ozone; Atmospheric pollution; Aircraft observations; Air quality; Ozone in troposphere; Ozone production; Satellite data; Numerical simulations; Ozonesondes; General circulation models; Atmospheric boundary layer; Tropospheric humidity; Tracers; Aircraft; Simulation Analysis; Boundary Layers; Evolution; ANW, USA, Maryland DO - http://dx.doi.org/10.1002/2015JD024052 ER - TY - JOUR T1 - Forest carbon fluxes: A satellite perspective AN - 1787978811; PQ0002932887 JF - Nature Climate Change AU - Morton, Douglas C AD - NASA's Goddard Space Flight Center, Greenbelt, Maryland 20771, USA Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 346 EP - 348 PB - Nature Publishing Group, The Macmillan Building London N1 9XW United Kingdom VL - 6 IS - 4 SN - 1758-678X, 1758-678X KW - ASFA 3: Aquatic Pollution & Environmental Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1787978811?accountid=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=Nature+Climate+Change&rft.atitle=Forest+carbon+fluxes%3A+A+satellite+perspective&rft.au=Morton%2C+Douglas+C&rft.aulast=Morton&rft.aufirst=Douglas&rft.date=2016-04-01&rft.volume=6&rft.issue=4&rft.spage=346&rft.isbn=&rft.btitle=&rft.title=Nature+Climate+Change&rft.issn=1758678X&rft_id=info:doi/10.1038%2Fnclimate2978 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Last updated - 2016-08-03 DO - http://dx.doi.org/10.1038/nclimate2978 ER - TY - JOUR T1 - Implications for climate sensitivity from the response to individual forcings AN - 1787965816; PQ0002932873 AB - Climate sensitivity to doubled CO sub(2) is a widely used metric for the large-scale response to external forcing. Climate models predict a wide range for two commonly used definitions: the transient climate response (TCR: the warming after 70 years of CO sub(2) concentrations that rise at 1% per year), and the equilibrium climate sensitivity (ECS: the equilibrium temperature change following a doubling of CO sub(2) concentrations). Many observational data sets have been used to constrain these values, including temperature trends over the recent past, inferences from palaeoclimate and process-based constraints from the modern satellite era. However, as the IPCC recently reported, different classes of observational constraints produce somewhat incongruent ranges. Here we show that climate sensitivity estimates derived from recent observations must account for the efficacy of each forcing active during the historical period. When we use single-forcing experiments to estimate these efficacies and calculate climate sensitivity from the observed twentieth-century warming, our estimates of both TCR and ECS are revised upwards compared to previous studies, improving the consistency with independent constraints. JF - Nature Climate Change AU - Marvel, Kate AU - Schmidt, Gavin A AU - Miller, Ron L AU - Nazarenko, Larissa S AD - Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, USA; NASA Goddard Institute for Space Studies, New York, New York 10025, USA Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 386 EP - 389 PB - Nature Publishing Group, The Macmillan Building London N1 9XW United Kingdom VL - 6 IS - 4 SN - 1758-678X, 1758-678X KW - Environment Abstracts; Meteorological & Geoastrophysical Abstracts KW - Temperature changes KW - Sensitivity KW - Historical account KW - Climate models KW - Climate KW - Climate change KW - Temperature KW - Remote sensing KW - Intergovernmental Panel on Climate Change KW - Satellites KW - Paleoclimates KW - Climate sensitivity KW - Temperature trends KW - Carbon dioxide KW - M2 551.583:Variations (551.583) KW - ENA 20:Weather Modification & Geophysical Change UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1787965816?accountid=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=Nature+Climate+Change&rft.atitle=Implications+for+climate+sensitivity+from+the+response+to+individual+forcings&rft.au=Marvel%2C+Kate%3BSchmidt%2C+Gavin+A%3BMiller%2C+Ron+L%3BNazarenko%2C+Larissa+S&rft.aulast=Marvel&rft.aufirst=Kate&rft.date=2016-04-01&rft.volume=6&rft.issue=4&rft.spage=386&rft.isbn=&rft.btitle=&rft.title=Nature+Climate+Change&rft.issn=1758678X&rft_id=info:doi/10.1038%2Fnclimate2888 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Last updated - 2016-11-09 N1 - SubjectsTermNotLitGenreText - Temperature changes; Climate models; Climate sensitivity; Climate change; Temperature trends; Intergovernmental Panel on Climate Change; Paleoclimates; Historical account; Sensitivity; Climate; Remote sensing; Temperature; Carbon dioxide; Satellites DO - http://dx.doi.org/10.1038/nclimate2888 ER - TY - JOUR T1 - The Grand Challenges of Organ Banking: Proceedings from the first global summit on complex tissue cryopreservation AN - 1785246174; PQ0002920333 AB - The first Organ Banking Summit was convened from Feb. 27 - March 1, 2015 in Palo Alto, CA, with events at Stanford University, NASA Research Park, and Lawrence Berkeley National Labs. Experts at the summit outlined the potential public health impact of organ banking, discussed the major remaining scientific challenges that need to be overcome in order to bank organs, and identified key opportunities to accelerate progress toward this goal. Many areas of public health could be revolutionized by the banking of organs and other complex tissues, including transplantation, oncofertility, tissue engineering, trauma medicine and emergency preparedness, basic biomedical research and drug discovery - and even space travel. Key remaining scientific sub-challenges were discussed including ice nucleation and growth, cryoprotectant and osmotic toxicities, chilling injury, thermo-mechanical stress, the need for rapid and uniform rewarming, and ischemia/reperfusion injury. A variety of opportunities to overcome these challenge areas were discussed, i.e. preconditioning for enhanced stress tolerance, nanoparticle rewarming, cyroprotectant screening strategies, and the use of cryoprotectant cocktails including ice binding agents. JF - Cryobiology AU - Lewis, Jedediah K AU - Bischof, John C AU - Braslavsky, Ido AU - Brockbank, Kelvin GM AU - Fahy, Gregory M AU - Fuller, Barry J AU - Rabin, Yoed AU - Tocchio, Alessandro AU - Woods, Erik J AU - Wowk, Brian G AU - Acker, Jason P AU - Giwa, Sebastian AD - Organ Preservation Alliance, NASA Research Park Bldg. 20, S. Akron Road, Moffett Field, CA, USA Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 169 EP - 182 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 72 IS - 2 SN - 0011-2240, 0011-2240 KW - Biotechnology and Bioengineering Abstracts KW - Organ banking KW - Organ preservation KW - Cryobanking KW - Organ transplantation KW - Ice binding proteins KW - Antifreeze proteins KW - Cryoprotectant toxicity KW - Chilling injury KW - Cryoprotectant screening KW - Thermo-mechanical stress KW - Cryomacroscopy KW - Vitrification KW - Devitrification KW - Nanoparticle warming KW - Ischemia KW - Freeze tolerance KW - Persufflation KW - Perfusion KW - Ischemic preconditioning KW - Chilling KW - Ice KW - Space flight KW - Injuries KW - Stress KW - Toxicity KW - Tissue engineering KW - Cryopreservation KW - Public health KW - Trauma KW - Reperfusion KW - Drug discovery KW - Parks KW - Cryoprotectors KW - nanoparticles KW - Ice nucleation KW - W 30920:Tissue Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1785246174?accountid=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=Cryobiology&rft.atitle=The+Grand+Challenges+of+Organ+Banking%3A+Proceedings+from+the+first+global+summit+on+complex+tissue+cryopreservation&rft.au=Lewis%2C+Jedediah+K%3BBischof%2C+John+C%3BBraslavsky%2C+Ido%3BBrockbank%2C+Kelvin+GM%3BFahy%2C+Gregory+M%3BFuller%2C+Barry+J%3BRabin%2C+Yoed%3BTocchio%2C+Alessandro%3BWoods%2C+Erik+J%3BWowk%2C+Brian+G%3BAcker%2C+Jason+P%3BGiwa%2C+Sebastian&rft.aulast=Lewis&rft.aufirst=Jedediah&rft.date=2016-04-01&rft.volume=72&rft.issue=2&rft.spage=169&rft.isbn=&rft.btitle=&rft.title=Cryobiology&rft.issn=00112240&rft_id=info:doi/10.1016%2Fj.cryobiol.2015.12.001 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Last updated - 2016-05-12 N1 - SubjectsTermNotLitGenreText - Chilling; Ice; Injuries; Space flight; Stress; Toxicity; Ischemia; Tissue engineering; Cryopreservation; Trauma; Public health; Reperfusion; Drug discovery; Parks; Cryoprotectors; Ice nucleation; nanoparticles DO - http://dx.doi.org/10.1016/j.cryobiol.2015.12.001 ER - TY - JOUR T1 - Comparison of the impact of the Arctic Oscillation and Eurasian teleconnection on interannual variation in East Asian winter temperatures and monsoon AN - 1780530265; PQ0002860275 AB - The large-scale impacts of the Arctic Oscillation (AO) and the Eurasian teleconnection (EU) on the East Asian winter climate are compared for the past 34 winters, focusing on (1) interannual monthly to seasonal temperature variability, (2) East Asian winter monsoon (EAWM), and (3) the Siberian high (SH) and cold surge. Regression analysis reveals warming by AO and cooling by EU over mid-latitude East Asia during their positive phase and vice versa (i.e., warm phase: +AO, -EU; cold phase: -AO, +EU). The EU impact was found to be comparable to the AO impact. For example, warm (cold) months during the warm (cold) AO phase are found clearly when the AO is in the same warm (cold) EU phase. No significant correlation was found between East Asian temperature and the AO when the warm (cold) AO coincided with the cold (warm) EU. The well-known relationship of strong (weak) SH during the cold (warm) AO phase was observed significantly more often when the AO was in the same cold (warm) EU phase. Also, the indices of EAWM, cold surge, and SH were more highly correlated with the EU than with the AO. The advective temperature change and associated circulation demonstrate that the large-scale field including the SH over the mid-latitude Asian inland is better represented by the EU, influencing the East Asian climate. These results suggest that the impact of EU should be considered more important than previously thought for a better understanding of East Asian winter temperature and monsoon variability. JF - Theoretical and Applied Climatology AU - Lim, Young-Kwon AU - Kim, Hae-Dong AD - NASA Goddard Space Flight Center, Goddard Earth Sciences Technology and Research (GESTAR)/I. M. Systems Group, Greenbelt, MD, USA, khd@kmu.ac.kr Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 267 EP - 279 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 124 IS - 1-2 SN - 0177-798X, 0177-798X KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts; Oceanic Abstracts; Meteorological & Geoastrophysical Abstracts KW - Regression Analysis KW - Variability KW - Climate change KW - Winter temperatures KW - Winter KW - Applied climatology KW - Seasonal variability KW - Climatology KW - Asia KW - Arctic KW - Winter climates KW - Teleconnections KW - Temperature changes KW - Temperature effects KW - Cold surges KW - Siberian High KW - Arctic Oscillation KW - Climates KW - Surges KW - Temperature KW - Atmospheric circulation KW - Ecosystem disturbance KW - PN, Arctic KW - Interannual variability KW - Seasonal temperatures KW - Temperature variability KW - Monsoons KW - AQ 00001:Water Resources and Supplies KW - Q2 09242:Observations and measurements at sea KW - O 2090:Instruments/Methods KW - SW 0810:General KW - M2 551.5:General (551.5) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1780530265?accountid=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+Applied+Climatology&rft.atitle=Comparison+of+the+impact+of+the+Arctic+Oscillation+and+Eurasian+teleconnection+on+interannual+variation+in+East+Asian+winter+temperatures+and+monsoon&rft.au=Lim%2C+Young-Kwon%3BKim%2C+Hae-Dong&rft.aulast=Lim&rft.aufirst=Young-Kwon&rft.date=2016-04-01&rft.volume=124&rft.issue=1-2&rft.spage=267&rft.isbn=&rft.btitle=&rft.title=Theoretical+and+Applied+Climatology&rft.issn=0177798X&rft_id=info:doi/10.1007%2Fs00704-015-1418-x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-04-01 N1 - Number of references - 37 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Temperature effects; Surges; Climate change; Climatology; Ecosystem disturbance; Winter; Teleconnections; Monsoons; Temperature changes; Cold surges; Siberian High; Arctic Oscillation; Atmospheric circulation; Winter temperatures; Interannual variability; Applied climatology; Seasonal temperatures; Seasonal variability; Temperature variability; Winter climates; Regression Analysis; Variability; Climates; Temperature; Arctic; PN, Arctic; Asia DO - http://dx.doi.org/10.1007/s00704-015-1418-x ER - TY - JOUR T1 - Seasonal evaluation of evapotranspiration fluxes from MODIS satellite and mesoscale model downscaled global reanalysis datasets AN - 1780522846; PQ0002860287 AB - Reference evapotranspiration (ETo) is an important variable in hydrological modeling, which is not always available, especially for ungauged catchments. Satellite data, such as those available from the MODerate Resolution Imaging Spectroradiometer (MODIS), and global datasets via the European Centre for Medium Range Weather Forecasts (ECMWF) reanalysis (ERA) interim and National Centers for Environmental Prediction (NCEP) reanalysis are important sources of information for ETo. This study explored the seasonal performances of MODIS (MOD16) and Weather Research and Forecasting (WRF) model downscaled global reanalysis datasets, such as ERA interim and NCEP-derived ETo, against ground-based datasets. Overall, on the basis of the statistical metrics computed, ETo derived from ERA interim and MODIS were more accurate in comparison to the estimates from NCEP for all the seasons. The pooled datasets also revealed a similar performance to the seasonal assessment with higher agreement for the ERA interim (r=0.96, RMSE=2.76 mm/8 days; bias=0.24 mm/8 days), followed by MODIS (r=0.95, RMSE=7.66 mm/8 days; bias=-7.17 mm/8 days) and NCEP (r=0.76, RMSE=11.81 mm/8 days; bias=-10.20 mm/8 days). The only limitation with downscaling ERA interim reanalysis datasets using WRF is that it is time-consuming in contrast to the readily available MODIS operational product for use in mesoscale studies and practical applications. JF - Theoretical and Applied Climatology AU - Srivastava, Prashant K AU - Han, Dawei AU - Islam, Tanvir AU - Petropoulos, George P AU - Gupta, Manika AU - Dai, Qiang AD - Hydrological Sciences, NASA Goddard Space Flight Center, Greenbelt, MD, 20771, USA, prashant.k.srivastava@nasa.gov Y1 - 2016/04// PY - 2016 DA - April 2016 SP - 461 EP - 473 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 124 IS - 1-2 SN - 0177-798X, 0177-798X KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts; Oceanic Abstracts; Meteorological & Geoastrophysical Abstracts KW - Remote Sensing KW - Prediction KW - Catchment area KW - Remote sensing KW - Data reanalysis KW - Evaluation KW - Applied climatology KW - Hydrologic Models KW - Assessments KW - Catchment basins KW - European Centre for Medium-Range Weather Forecasts KW - MODIS (Moderate Resolution Imaging Spectrometer) KW - Seasonal variability KW - Climatology KW - Weather forecasting KW - Modelling KW - Weather KW - Satellite Technology KW - Hydrologic analysis KW - Evapotranspiration KW - Imaging techniques KW - Satellite sensing KW - Satellite data KW - Mesoscale models KW - Statistical forecasting KW - AQ 00001:Water Resources and Supplies KW - SW 0850:Lakes KW - M2 556:General (556) KW - O 4080:Pollution - Control and Prevention KW - Q2 09105:Research programmes and expeditions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1780522846?accountid=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+Applied+Climatology&rft.atitle=Seasonal+evaluation+of+evapotranspiration+fluxes+from+MODIS+satellite+and+mesoscale+model+downscaled+global+reanalysis+datasets&rft.au=Srivastava%2C+Prashant+K%3BHan%2C+Dawei%3BIslam%2C+Tanvir%3BPetropoulos%2C+George+P%3BGupta%2C+Manika%3BDai%2C+Qiang&rft.aulast=Srivastava&rft.aufirst=Prashant&rft.date=2016-04-01&rft.volume=124&rft.issue=1-2&rft.spage=461&rft.isbn=&rft.btitle=&rft.title=Theoretical+and+Applied+Climatology&rft.issn=0177798X&rft_id=info:doi/10.1007%2Fs00704-015-1430-1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-04-01 N1 - Number of references - 54 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Catchment area; Prediction; Satellite sensing; Remote sensing; Climatology; Evapotranspiration; Weather forecasting; Imaging techniques; Modelling; Applied climatology; Satellite data; Hydrologic analysis; Catchment basins; European Centre for Medium-Range Weather Forecasts; Mesoscale models; Seasonal variability; MODIS (Moderate Resolution Imaging Spectrometer); Statistical forecasting; Data reanalysis; Evaluation; Remote Sensing; Satellite Technology; Weather; Hydrologic Models; Assessments DO - http://dx.doi.org/10.1007/s00704-015-1430-1 ER - TY - JOUR T1 - The geology of Pluto and Charon through the eyes of New Horizons AN - 1800391275; 2016-056617 AB - NASA's New Horizons spacecraft has revealed the complex geology of Pluto and Charon. Pluto's encounter hemisphere shows ongoing surface geological activity centered on a vast basin containing a thick layer of volatile ices that appears to be involved in convection and advection, with a crater retention age no greater than approximately 10 million years. Surrounding terrains show active glacial flow, apparent transport and rotation of large buoyant water-ice crustal blocks, and pitting, the latter likely caused by sublimation erosion and/or collapse. More enigmatic features include tall mounds with central depressions that are conceivably cryovolcanic and ridges with complex bladed textures. Pluto also has ancient cratered terrains up to approximately 4 billion years old that are extensionally faulted and extensively mantled and perhaps eroded by glacial or other processes. Charon does not appear to be currently active, but experienced major extensional tectonism and resurfacing (probably cryovolcanic) nearly 4 billion years ago. Impact crater populations on Pluto and Charon are not consistent with the steepest impactor size-frequency distributions proposed for the Kuiper belt. JF - Science AU - Moore, Jeffrey M AU - McKinnon, William B AU - Spencer, John R AU - Howard, Alan D AU - Schenk, Paul M AU - Beyer, Ross A AU - Nimmo, Francis AU - Singer, Kelsi N AU - Umurhan, Orkan M AU - White, Oliver L AU - Stern, S Alan AU - Ennico, Kimberly AU - Olkin, Cathy B AU - Weaver, Harold A AU - Young, Leslie A AU - Binzel, Richard P AU - Buie, Marc W AU - Buratti, Bonnie J AU - Cheng, Andrew F AU - Cruikshank, Dale P AU - Grundy, Will M AU - Linscott, Ivan R AU - Reitsema, Harold J AU - Reuter, Dennis C AU - Showalter, Mark R AU - Bray, Veronica J AU - Chavez, Carrie L AU - Howett, Carly J A AU - Lauer, Tod R AU - Lisse, Carey M AU - Parker, Alex Harrison AU - Porter, S B AU - Robbins, Stuart J AU - Runyon, Kirby AU - Stryk, Ted AU - Throop, Henry B AU - Tsang, Constantine C C AU - Verbiscer, Anne J AU - Zangari, Amanda M AU - Chaikin, Andrew L AU - Wilhelms, Don E Y1 - 2016/03/18/ PY - 2016 DA - 2016 Mar 18 SP - 1284 EP - 1293 PB - American Association for the Advancement of Science, Washington, DC VL - 351 IS - 6279 SN - 0036-8075, 0036-8075 KW - cryovolcanism KW - tectonic elements KW - petrology KW - impact features KW - textures KW - glaciers KW - digital terrain models KW - basin analysis KW - extension tectonics KW - dwarf planets KW - volatiles KW - volcanic features KW - ice KW - surface features KW - Charon KW - impact craters KW - tectonics KW - Pluto KW - faults KW - New Horizons Mission KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800391275?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=The+geology+of+Pluto+and+Charon+through+the+eyes+of+New+Horizons&rft.au=Moore%2C+Jeffrey+M%3BMcKinnon%2C+William+B%3BSpencer%2C+John+R%3BHoward%2C+Alan+D%3BSchenk%2C+Paul+M%3BBeyer%2C+Ross+A%3BNimmo%2C+Francis%3BSinger%2C+Kelsi+N%3BUmurhan%2C+Orkan+M%3BWhite%2C+Oliver+L%3BStern%2C+S+Alan%3BEnnico%2C+Kimberly%3BOlkin%2C+Cathy+B%3BWeaver%2C+Harold+A%3BYoung%2C+Leslie+A%3BBinzel%2C+Richard+P%3BBuie%2C+Marc+W%3BBuratti%2C+Bonnie+J%3BCheng%2C+Andrew+F%3BCruikshank%2C+Dale+P%3BGrundy%2C+Will+M%3BLinscott%2C+Ivan+R%3BReitsema%2C+Harold+J%3BReuter%2C+Dennis+C%3BShowalter%2C+Mark+R%3BBray%2C+Veronica+J%3BChavez%2C+Carrie+L%3BHowett%2C+Carly+J+A%3BLauer%2C+Tod+R%3BLisse%2C+Carey+M%3BParker%2C+Alex+Harrison%3BPorter%2C+S+B%3BRobbins%2C+Stuart+J%3BRunyon%2C+Kirby%3BStryk%2C+Ted%3BThroop%2C+Henry+B%3BTsang%2C+Constantine+C+C%3BVerbiscer%2C+Anne+J%3BZangari%2C+Amanda+M%3BChaikin%2C+Andrew+L%3BWilhelms%2C+Don+E&rft.aulast=Moore&rft.aufirst=Jeffrey&rft.date=2016-03-18&rft.volume=351&rft.issue=6279&rft.spage=1284&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.aad7055 L2 - http://www.sciencemag.org/magazine LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 23 N1 - PubXState - DC N1 - Document feature - illus. incl. geol. sketch maps N1 - Last updated - 2016-06-30 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - basin analysis; Charon; cryovolcanism; digital terrain models; dwarf planets; extension tectonics; faults; glaciers; ice; impact craters; impact features; New Horizons Mission; petrology; Pluto; surface features; tectonic elements; tectonics; textures; volatiles; volcanic features DO - http://dx.doi.org/10.1126/science.aad7055 ER - TY - JOUR T1 - Surface compositions across Pluto and Charon AN - 1800391170; 2016-056618 AB - The New Horizons spacecraft mapped colors and infrared spectra across the encounter hemispheres of Pluto and Charon. The volatile methane, carbon monoxide, and nitrogen ices that dominate Pluto's surface have complicated spatial distributions resulting from sublimation, condensation, and glacial flow acting over seasonal and geological time scales. Pluto's water ice "bedrock" was also mapped, with isolated outcrops occurring in a variety of settings. Pluto's surface exhibits complex regional color diversity associated with its distinct provinces. Charon's color pattern is simpler, dominated by neutral low latitudes and a reddish northern polar region. Charon's near-infrared spectra reveal highly localized areas with strong ammonia absorption tied to small craters with relatively fresh-appearing impact ejecta. JF - Science AU - Grundy, Will M AU - Binzel, Richard P AU - Buratti, Bonnie J AU - Cook, J C AU - Cruikshank, Dale P AU - Dalle Ore, C M AU - Earle, A M AU - Ennico, Kimberly AU - Howett, Carly J A AU - Lunsford, A W AU - Olkin, Cathy B AU - Parker, Alex Harrison AU - Philippe, S AU - Protopapa, S AU - Quirico, E AU - Reuter, Dennis C AU - Schmitt, B AU - Singer, Kelsi N AU - Verbiscer, Anne J AU - Beyer, Ross A AU - Buie, Marc W AU - Cheng, Andrew F AU - Jennings, D E AU - Linscott, Ivan R AU - Parker, J W AU - Schenk, Paul M AU - Spencer, J R AU - Stansberry, J A AU - Stern, S A AU - Throop, Henry B AU - Tsang, Constantine C C AU - Weaver, Harold A AU - Weigle, G E, II AU - Young, L A Y1 - 2016/03/18/ PY - 2016 DA - 2016 Mar 18 SP - 1283 PB - American Association for the Advancement of Science, Washington, DC VL - 351 IS - 6279 SN - 0036-8075, 0036-8075 KW - imagery KW - methane KW - Kuiper Belt KW - aliphatic hydrocarbons KW - landforms KW - cosmochemistry KW - alkanes KW - dwarf planets KW - nitrogen KW - carbon dioxide KW - organic compounds KW - surface features KW - hydrocarbons KW - Charon KW - geochemistry KW - Pluto KW - New Horizons Mission KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800391170?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Surface+compositions+across+Pluto+and+Charon&rft.au=Grundy%2C+Will+M%3BBinzel%2C+Richard+P%3BBuratti%2C+Bonnie+J%3BCook%2C+J+C%3BCruikshank%2C+Dale+P%3BDalle+Ore%2C+C+M%3BEarle%2C+A+M%3BEnnico%2C+Kimberly%3BHowett%2C+Carly+J+A%3BLunsford%2C+A+W%3BOlkin%2C+Cathy+B%3BParker%2C+Alex+Harrison%3BPhilippe%2C+S%3BProtopapa%2C+S%3BQuirico%2C+E%3BReuter%2C+Dennis+C%3BSchmitt%2C+B%3BSinger%2C+Kelsi+N%3BVerbiscer%2C+Anne+J%3BBeyer%2C+Ross+A%3BBuie%2C+Marc+W%3BCheng%2C+Andrew+F%3BJennings%2C+D+E%3BLinscott%2C+Ivan+R%3BParker%2C+J+W%3BSchenk%2C+Paul+M%3BSpencer%2C+J+R%3BStansberry%2C+J+A%3BStern%2C+S+A%3BThroop%2C+Henry+B%3BTsang%2C+Constantine+C+C%3BWeaver%2C+Harold+A%3BWeigle%2C+G+E%2C+II%3BYoung%2C+L+A&rft.aulast=Grundy&rft.aufirst=Will&rft.date=2016-03-18&rft.volume=351&rft.issue=6279&rft.spage=1283&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.aad9189 L2 - http://www.sciencemag.org/magazine LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2016-06-30 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; carbon dioxide; Charon; cosmochemistry; dwarf planets; geochemistry; hydrocarbons; imagery; Kuiper Belt; landforms; methane; New Horizons Mission; nitrogen; organic compounds; Pluto; surface features DO - http://dx.doi.org/10.1126/science.aad9189 ER - TY - JOUR T1 - Spatiotemporal drought variability in the Mediterranean over the last 900 years AN - 1807506951; 2016-067218 AB - Recent Mediterranean droughts have highlighted concerns that climate change may be contributing to observed drying trends, but natural climate variability in the region is still poorly understood. We analyze 900 years (1100-2012) of Mediterranean drought variability in the Old World Drought Atlas (OWDA), a spatiotemporal tree ring reconstruction of the June-July-August self-calibrating Palmer Drought Severity Index. In the Mediterranean, the OWDA is highly correlated with spring precipitation (April-June), the North Atlantic Oscillation (January-April), the Scandinavian Pattern (January-March), and the East Atlantic Pattern (April-June). Drought variability displays significant east-west coherence across the basin on multidecadal to centennial timescales and north-south antiphasing in the eastern Mediterranean, with a tendency for wet anomalies in the Black Sea region (e.g., Greece, Anatolia, and the Balkans) when coastal Libya, the southern Levant, and the Middle East are dry, possibly related to the North Atlantic Oscillation. Recent droughts are centered in the western Mediterranean, Greece, and the Levant. Events of similar magnitude in the western Mediterranean and Greece occur in the OWDA, but the recent 15 year drought in the Levant (1998-2012) is the driest in the record. Estimating uncertainties using a resampling approach, we conclude that there is an 89% likelihood that this drought is drier than any comparable period of the last 900 years and a 98% likelihood that it is drier than the last 500 years. These results confirm the exceptional nature of this drought relative to natural variability in recent centuries, consistent with studies that have found evidence for anthropogenically forced drying in the region. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Atmospheres AU - Cook, Benjamin I AU - Anchukaitis, Kevin J AU - Touchan, Ramzi AU - Meko, David M AU - Cook, Edward R Y1 - 2016/03/16/ PY - 2016 DA - 2016 Mar 16 SP - 2060 EP - 2074 PB - Blackwell Wiley for American Geophysical Union, Washington, DC VL - 121 IS - 5 SN - 2169-897X, 2169-897X KW - North Atlantic Oscillation KW - Quaternary KW - time series analysis KW - North Africa KW - paleohydrology KW - statistical analysis KW - Europe KW - Palmer drought severity index KW - paleoclimatology KW - Holocene KW - climate change KW - Southern Europe KW - drought KW - Cenozoic KW - spatial variations KW - tree rings KW - Africa KW - temporal distribution KW - reconstruction KW - upper Holocene KW - Asia KW - Middle East KW - Mediterranean region KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807506951?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Atmospheres&rft.atitle=Spatiotemporal+drought+variability+in+the+Mediterranean+over+the+last+900+years&rft.au=Cook%2C+Benjamin+I%3BAnchukaitis%2C+Kevin+J%3BTouchan%2C+Ramzi%3BMeko%2C+David+M%3BCook%2C+Edward+R&rft.aulast=Cook&rft.aufirst=Benjamin&rft.date=2016-03-16&rft.volume=121&rft.issue=5&rft.spage=2060&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2015JD023929 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-8996 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 85 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - Africa; Asia; Cenozoic; climate change; drought; Europe; Holocene; Mediterranean region; Middle East; North Africa; North Atlantic Oscillation; paleoclimatology; paleohydrology; Palmer drought severity index; Quaternary; reconstruction; Southern Europe; spatial variations; statistical analysis; temporal distribution; time series analysis; tree rings; upper Holocene DO - http://dx.doi.org/10.1002/2015JD023929 ER - TY - JOUR T1 - Light and variable (super 37) Cl/ (super 35) Cl ratios in rocks from Gale Crater, Mars; possible signature of perchlorate AN - 1793208429; 2016-047239 AB - Cl isotope ratios measured on HCl thermally evolved from as-yet-unknown phases in sedimentary rocks and sand in Gale Crater provide unexpected insights to the Martian surficial Cl cycle. The seven samples yield delta (super 37) Cl values ranging from -1+ or -25ppm to -51+ or -5ppm. Five analyses from two samples of the Sheepbed mudstone (Yellowknife Bay study area) are analytically indistinguishable with a mean delta (super 37) Cl of -11+ or -7ppm(1sigma ). In contrast, four mudstones/sandstones from the Kimberley and Pahrump study areas also yielded indistinguishable ratios, but with a mean delta (super 37) Cl of -43+ or -6ppm. The Rocknest sand deposit gave a highly uncertain delta (super 37) Cl value of -7+ or -44ppm. These light and highly variable delta (super 37) Cl values are unique among known solar system materials. Two endmember models are offered to account for these observations, and in both, perchlorate, with its extreme ability to fractionate Cl isotopes, is critical. In the first model, SAM is detecting HCl from an oxychlorine compound (e.g., perchlorate) produced from volcanic gas emissions by atmospheric chemical reactions. Similar reactions in Earth's atmosphere may be responsible for the isotopically lightest known Cl outside of this study, in perchlorate from the Atacama Desert. Some of the Gale Crater delta (super 37) Cl values are more negative than those in Atacama perchlorate, but because reaction mechanisms and associated fractionation factors are unknown, it is impossible to assess whether this difference is prohibitive. If the negative delta (super 37) Cl signal is produced in this fashion, the isotopic variability among samples could arise either from variations in the relative size of the reactant chloride and product perchlorate reservoirs, or from variations in the fraction of perchlorate reduced back to chloride after deposition. Such reduction strongly enriches (super 37) Cl in the residual perchlorate. Perchlorate reduction alone offers an alternative endmember model that can explain the observed data if SAM measured HCl derived from chloride. In this model isotopically normal perchlorate produced by an unspecified mechanism is reduced to chloride. Depending on the relative size of the reduced reservoir, the integrated product chloride can vary in isotopic composition from -70ppm in the first increment all the way to the starting composition if the perchlorate is fully reduced. Thus, variable degrees of perchlorate reduction can produce chloride with the appropriate delta (super 37) Cl range. Combination of the two endmember models, in which the perchlorate subject to post-deposition reduction is isotopically negative from atmospheric reactions, is also possible.Determination of the phase hosting the Cl measured by SAM, an oxychlorine compound or chloride, is critical for selecting between these models, and for developing implications of the results for the Mars surficial Cl cycle. At present it is not possible to conclusively establish which phase is responsible (possibly both), but limited evidence favors the conclusion that the measured Cl derives mostly from an oxychlorine compound. JF - Earth and Planetary Science Letters AU - Farley, K A AU - Martin, P AU - Archer, P D, Jr AU - Atreya, S K AU - Conrad, P G AU - Eigenbrode, J L AU - Fairen, A G AU - Franz, H B AU - Freissinet, C AU - Glavin, D P AU - Mahaffy, P R AU - Malespin, C AU - Ming, D W AU - Navarro-Gonzalez, R AU - Sutter, B Y1 - 2016/03/15/ PY - 2016 DA - 2016 Mar 15 SP - 14 EP - 24 PB - Elsevier, Amsterdam VL - 438 SN - 0012-821X, 0012-821X KW - isotopes KW - Kimberley KW - halogens KW - Mars KW - stable isotopes KW - Gale Crater KW - sedimentary rocks KW - chemical reactions KW - Curiosity Rover KW - Yellowknife Bay KW - chlorine KW - isotope ratios KW - oxychlorine KW - Sheepbed Mudstone KW - Rocknest KW - perchlorate KW - Pahrump Hills KW - geochemical cycle KW - terrestrial planets KW - planets KW - Sample Analysis at Mars instrument KW - Cl-37/Cl-35 KW - Mars Science Laboratory KW - hydrogen chloride KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1793208429?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Light+and+variable+%28super+37%29+Cl%2F+%28super+35%29+Cl+ratios+in+rocks+from+Gale+Crater%2C+Mars%3B+possible+signature+of+perchlorate&rft.au=Farley%2C+K+A%3BMartin%2C+P%3BArcher%2C+P+D%2C+Jr%3BAtreya%2C+S+K%3BConrad%2C+P+G%3BEigenbrode%2C+J+L%3BFairen%2C+A+G%3BFranz%2C+H+B%3BFreissinet%2C+C%3BGlavin%2C+D+P%3BMahaffy%2C+P+R%3BMalespin%2C+C%3BMing%2C+D+W%3BNavarro-Gonzalez%2C+R%3BSutter%2C+B&rft.aulast=Farley&rft.aufirst=K&rft.date=2016-03-15&rft.volume=438&rft.issue=&rft.spage=14&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2015.12.013 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 56 N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-06-02 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - chemical reactions; chlorine; Cl-37/Cl-35; Curiosity Rover; Gale Crater; geochemical cycle; halogens; hydrogen chloride; isotope ratios; isotopes; Kimberley; Mars; Mars Science Laboratory; oxychlorine; Pahrump Hills; perchlorate; planets; Rocknest; Sample Analysis at Mars instrument; sedimentary rocks; Sheepbed Mudstone; stable isotopes; terrestrial planets; Yellowknife Bay DO - http://dx.doi.org/10.1016/j.epsl.2015.12.013 ER - TY - JOUR T1 - A 2 km-size asteroid challenging the rubble-pile spin barrier; a case for cohesion AN - 1789754613; 2016-040155 JF - Icarus AU - Polishook, D AU - Moskovitz, N AU - Binzel, R P AU - Burt, B AU - DeMeo, F E AU - Hinkle, M L AU - Lockhart, M AU - Mommert, M AU - Person, M AU - Thirouin, A AU - Thomas, C A AU - Trilling, D AU - Willman, M AU - Aharonson, O Y1 - 2016/03/15/ PY - 2016 DA - 2016 Mar 15 SP - 243 EP - 254 PB - Elsevier, New York, NY VL - 267 SN - 0019-1035, 0019-1035 KW - shear strength KW - density KW - asteroids KW - Moon KW - stability KW - rubble-pile spin KW - rates KW - size KW - photometry KW - Asteroid 2000 GD65 KW - dynamics KW - rotation KW - S-type asteroids KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789754613?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+2+km-size+asteroid+challenging+the+rubble-pile+spin+barrier%3B+a+case+for+cohesion&rft.au=Polishook%2C+D%3BMoskovitz%2C+N%3BBinzel%2C+R+P%3BBurt%2C+B%3BDeMeo%2C+F+E%3BHinkle%2C+M+L%3BLockhart%2C+M%3BMommert%2C+M%3BPerson%2C+M%3BThirouin%2C+A%3BThomas%2C+C+A%3BTrilling%2C+D%3BWillman%2C+M%3BAharonson%2C+O&rft.aulast=Polishook&rft.aufirst=D&rft.date=2016-03-15&rft.volume=267&rft.issue=&rft.spage=243&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.12.031 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 52 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2016-08-18 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - Asteroid 2000 GD65; asteroids; density; dynamics; Moon; photometry; rates; regolith; rotation; rubble-pile spin; S-type asteroids; shear strength; size; stability DO - http://dx.doi.org/10.1016/j.icarus.2015.12.031 ER - TY - JOUR T1 - On Measurements of the Tide at Churchill, Hudson Bay AN - 1790931144; PQ0003049009 AB - Since the late 1990s the semi-diurnal tide at Churchill, on the western shore of Hudson Bay, has been decreasing in amplitude, with M sub(2) amplitudes falling from approximately 154cm in 1998 to 146cm in 2012 and 142cm in 2014. There has been a corresponding small increase in phase lag. Mean low water, decreasing throughout most of the twentieth century, has levelled off. Although the tidal changes could reflect merely a malfunctioning tide gauge, the fact that there are no other measurements in the region and the possibility that the tide is revealing important environmental changes calls for serious investigation. Satellite altimeter measurements of the tide in Hudson Bay are complicated by the seasonal ice cover; at most locations less than 40% of satellite passes return valid ocean heights and even those can be impacted by errors from sea ice. Because the combined TOPEX/Poseidon, Jason-1, and Jason-2 time series is more than 23 years long, it is now possible to obtain sufficient data at crossover locations near Churchill to search for tidal changes. The satellites sense no changes in M sub(2) that are comparable to the changes seen at the Churchill gauge. The changes appear to be localized to the harbour, or to the Churchill River, or to the gauge itself. JF - Atmosphere-Ocean AU - Ray, Richard D AD - NASA Goddard Space Flight Center, Greenbelt, Maryland, United States Y1 - 2016/03/14/ PY - 2016 DA - 2016 Mar 14 SP - 108 EP - 116 PB - Canadian Meteorological and Oceanographic Society, McDonald Building Ottawa, ON, K1N 6N5 Canada VL - 54 IS - 2 SN - 0705-5900, 0705-5900 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts; Oceanic Abstracts KW - Remote Sensing KW - Rivers KW - Marine KW - Satellite Technology KW - Ice Cover KW - PNW, Canada, Hudson Bay KW - Climatic changes KW - Shores KW - Freshwater KW - Time series analysis KW - Tides KW - Satellite sensing KW - Sea ice KW - Canada, Manitoba, Churchill R. KW - Tide gauges KW - Oceans KW - Sea Ice KW - Altimeters KW - Ice cover KW - TOPEX/POSEIDON KW - O 6060:Coastal Zone Resources and Management KW - SW 0810:General KW - M2 551.326:Floating Ice (551.326) KW - Q2 09162:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790931144?accountid=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=Atmosphere-Ocean&rft.atitle=On+Measurements+of+the+Tide+at+Churchill%2C+Hudson+Bay&rft.au=Ray%2C+Richard+D&rft.aulast=Ray&rft.aufirst=Richard&rft.date=2016-03-14&rft.volume=54&rft.issue=2&rft.spage=108&rft.isbn=&rft.btitle=&rft.title=Atmosphere-Ocean&rft.issn=07055900&rft_id=info:doi/10.1080%2F07055900.2016.1139540 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Rivers; Satellite sensing; Tide gauges; Climatic changes; Altimeters; Ice cover; Sea ice; Time series analysis; TOPEX/POSEIDON; Remote Sensing; Satellite Technology; Ice Cover; Oceans; Sea Ice; Shores; Tides; Canada, Manitoba, Churchill R.; PNW, Canada, Hudson Bay; Marine; Freshwater DO - http://dx.doi.org/10.1080/07055900.2016.1139540 ER - TY - JOUR T1 - Automatic boosted flood mapping from satellite data AN - 1790935857; PQ0003047227 AB - Numerous algorithms have been proposed to map floods from Moderate Resolution Imaging Spectroradiometer (MODIS) imagery. However, most require human input to succeed, either to specify a threshold value or to manually annotate training data. We introduce a new algorithm based on Adaboost which effectively maps floods without any human input, allowing for a truly rapid and automatic response. The Adaboost algorithm combines multiple thresholds to achieve results comparable to state-of-the-art algorithms which do require human input. We evaluate Adaboost, as well as numerous previously proposed flood mapping algorithms, on multiple MODIS flood images, as well as on hundreds of non-flood MODIS lake images, demonstrating its effectiveness across a wide variety of conditions. JF - International Journal of Remote Sensing AU - Coltin, Brian AU - McMichael, Scott AU - Smith, Trey AU - Fong, Terrence AD - Intelligent Robotics Group, NASA Ames, Moffett Field, CA, USA Y1 - 2016/03/03/ PY - 2016 DA - 2016 Mar 03 SP - 993 EP - 1015 PB - Taylor & Francis Group Ltd., 2 Park Square Oxford OX14 4RN United Kingdom VL - 37 IS - 5 SN - 0143-1161, 0143-1161 KW - Meteorological & Geoastrophysical Abstracts; Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Remote Sensing KW - Algorithms KW - Remote sensing KW - Automation KW - Maps KW - Lakes KW - Floods KW - MODIS (Moderate Resolution Imaging Spectrometer) KW - Mapping KW - Hydrologic Data KW - Satellite Technology KW - Imaging techniques KW - Automated cartography KW - Satellite sensing KW - Satellite data KW - AQ 00001:Water Resources and Supplies KW - Q2 09393:Remote geosensing KW - SW 7010:Education - extramural KW - M2 551.5:General (551.5) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790935857?accountid=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=International+Journal+of+Remote+Sensing&rft.atitle=Automatic+boosted+flood+mapping+from+satellite+data&rft.au=Coltin%2C+Brian%3BMcMichael%2C+Scott%3BSmith%2C+Trey%3BFong%2C+Terrence&rft.aulast=Coltin&rft.aufirst=Brian&rft.date=2016-03-03&rft.volume=37&rft.issue=5&rft.spage=993&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Remote+Sensing&rft.issn=01431161&rft_id=info:doi/10.1080%2F01431161.2016.1145366 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Satellite sensing; Automated cartography; Floods; Remote sensing; Mapping; Imaging techniques; Satellite data; Algorithms; MODIS (Moderate Resolution Imaging Spectrometer); Remote Sensing; Satellite Technology; Lakes; Automation; Maps; Hydrologic Data DO - http://dx.doi.org/10.1080/01431161.2016.1145366 ER - TY - JOUR T1 - Health-related quality of life in transfusion-dependent patients with myelodysplastic syndromes: a prospective study to assess the impact of iron chelation therapy AN - 1860823309 AB - Objective The primary objective of this study was to evaluate the health-related quality of life (HRQOL) in lower-risk, transfusion-dependent patients with myelodysplastic syndromes (MDS) treated with deferasirox. A secondary objective was to investigate the relationship between HRQOL, serum ferritin levels and transfusion dependency. Patients and methods This was a prospective multicentre study enrolling 159 patients, of whom 152 received at least one dose of deferasirox. HRQOL was assessed with the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire-Core 30 (EORTC QLQ-C30) at baseline and then at 3, 6, 9 and 12 months. Primary analysis was performed estimating mean HRQOL scores over time by a linear mixed model on selected scales. Results The median age of treated patients was 72 years (range 24-87 years). No statistically significant changes over time were found in mean scores for global health status/quality of life (p=0.564), physical functioning (p=0.409) and fatigue (p=0.471) scales. Also, no significant changes were found for constipation (p=0.292), diarrhoea (p=0.815) and nausea and vomiting (p=0.643). Serum ferritin levels were not associated with HRQOL outcomes. A higher patient-reported baseline pain severity was an independent predictive factor of an earlier achievement of transfusion independence with a HR of 1.032 (99% CI 1.004 to 1.060; p=0.003). Conclusions HRQOL of transfusion-dependent patients with MDS receiving deferasirox therapy remains stable over time. HRQOL assessment might also provide important predictive information on treatment outcomes. Trial registration number NCT00469560. JF - BMJ Supportive & Palliative Care AU - Efficace, Fabio AU - Santini, Valeria AU - La Nasa, Giorgio AU - Cottone, Francesco AU - Finelli, Carlo AU - Borin, Lorenza AU - Quaresmini, Giulia AU - Di Tucci, Anna Angela AU - Volpe, Antonio AU - Cilloni, Daniela AU - Quarta, Giovanni AU - Sanpaolo, Grazia AU - Rivellini, Flavia AU - Salvi, Flavia AU - Molteni, Alfredo AU - Voso, Maria Teresa AU - Alimena, Giuliana AU - Fenu, Susanna AU - Mandelli, Franco AU - Angelucci, Emanuele Y1 - 2016/03// PY - 2016 DA - Mar 2016 SP - 80 CY - London PB - BMJ Publishing Group LTD VL - 6 IS - 1 SN - 2045435X KW - Medical Sciences KW - Chelation Therapy KW - Quality of life KW - Myelodysplastic Syndromes KW - Symptom Burden KW - Transfusions KW - Studies KW - Hemoglobin KW - Responsible persons KW - Pain KW - Anemia KW - Hematology KW - Iron KW - Leukemia KW - Chelation therapy KW - Medical prognosis KW - Patients KW - Multivariate analysis KW - Constipation KW - Laboratories KW - Questionnaires UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1860823309?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apsychology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=BMJ+Supportive+%26+Palliative+Care&rft.atitle=Health-related+quality+of+life+in+transfusion-dependent+patients+with+myelodysplastic+syndromes%3A+a+prospective+study+to+assess+the+impact+of+iron+chelation+therapy&rft.au=Efficace%2C+Fabio%3BSantini%2C+Valeria%3BLa+Nasa%2C+Giorgio%3BCottone%2C+Francesco%3BFinelli%2C+Carlo%3BBorin%2C+Lorenza%3BQuaresmini%2C+Giulia%3BDi+Tucci%2C+Anna+Angela%3BVolpe%2C+Antonio%3BCilloni%2C+Daniela%3BQuarta%2C+Giovanni%3BSanpaolo%2C+Grazia%3BRivellini%2C+Flavia%3BSalvi%2C+Flavia%3BMolteni%2C+Alfredo%3BVoso%2C+Maria+Teresa%3BAlimena%2C+Giuliana%3BFenu%2C+Susanna%3BMandelli%2C+Franco%3BAngelucci%2C+Emanuele&rft.aulast=Efficace&rft.aufirst=Fabio&rft.date=2016-03-01&rft.volume=6&rft.issue=1&rft.spage=80&rft.isbn=&rft.btitle=&rft.title=BMJ+Supportive+%26+Palliative+Care&rft.issn=2045435X&rft_id=info:doi/10.1136%2Fbmjspcare-2014-000726 LA - English DB - ProQuest Central N1 - Copyright - Copyright: 2016 Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/ N1 - Last updated - 2017-02-07 DO - http://dx.doi.org/10.1136/bmjspcare-2014-000726 ER - TY - JOUR T1 - Carbon and sulfur isotopic signatures of ancient life and environment at the microbial scale; Neoarchean shales and carbonates AN - 1832682902; 769335-2 AB - An approach to coordinated, spatially resolved, in situ carbon isotope analysis of organic matter and carbonate minerals, and sulfur three- and four-isotope analysis of pyrite with an unprecedented combination of spatial resolution, precision, and accuracy is described. Organic matter and pyrite from eleven rock samples of Neoarchean drill core express nearly the entire range of delta (super 13) C, delta (super 34) S, Delta (super 33) S, and Delta (super 36) S known from the geologic record, commonly in correlation with morphology, mineralogy, and elemental composition. A new analytical approach (including a set of organic calibration standards) to account for a strong correlation between H/C and instrumental bias in SIMS delta (super 13) C measurement of organic matter is identified. Small (2-3 mu m) organic domains in carbonate matrices are analyzed with sub-permil accuracy and precision. Separate 20- to 50-mu m domains of kerogen in a single nearly equal 0.5 cm (super 3) sample of the nearly equal 2.7 Ga Tumbiana Formation have delta (super 13) C = -52.3 + or - 0.1 ppm and -34.4 + or - 0.1 ppm, likely preserving distinct signatures of methanotrophy and photoautotrophy. Pyrobitumen in the nearly equal 2.6 Ga Jeerinah Formation and the nearly equal 2.5 Ga Mount McRae Shale is systematically (super 13) C-enriched relative to co-occurring kerogen, and associations with uraniferous mineral grains suggest radiolytic alteration. A large range in sulfur isotopic compositions (including higher Delta (super 33) S and more extreme spatial gradients in Delta (super 33) S and Delta (super 36) S than any previously reported) are observed in correlation with morphology and associated mineralogy. Changing systematics of delta (super 34) S, Delta (super 33) S, and Delta (super 36) S, previously investigated at the millimeter to centimeter scale using bulk analysis, are shown to occur at the micrometer scale of individual pyrite grains. These results support the emerging view that the dampened signature of mass-independent sulfur isotope fractionation (S-MIF) associated with the Mesoarchean continued into the early Neoarchean, and that the connections between methane and sulfur metabolism affected the production and preservation of S-MIF during the first half of the planet's history. Abstract Copyright (2010), John Wiley & Sons, Ltd. JF - Geobiology AU - Williford, K H AU - Ushikubo, T AU - Lepot, K AU - Kitajima, K AU - Hallmann, C AU - Spicuzza, M J AU - Kozdon, R AU - Eigenbrode, J L AU - Summons, R E AU - Valley, J W Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 105 EP - 128 PB - Wiley, Oxford VL - 14 IS - 2 SN - 1472-4677, 1472-4677 KW - Pilbara Craton KW - isotopes KW - Western Australia KW - mass spectra KW - Jeerinah Formation KW - Carawine Dolomite KW - stable isotopes KW - Mount McRae Shale KW - black shale KW - sedimentary rocks KW - Wittenoom Formation KW - carbon KW - Australia KW - Archean KW - spectra KW - organic carbon KW - chemical composition KW - Hamersley Basin KW - Precambrian KW - Australasia KW - secondary-ion mass spectra KW - isotope ratios KW - Marra Mamba Formation KW - C-13/C-12 KW - Mount Bruce Supergroup KW - organic compounds KW - S-34/S-32 KW - sulfur KW - petrography KW - S-33/S-32 KW - clastic rocks KW - carbonates KW - Tumbiana Formation KW - Neoarchean KW - 06A:Sedimentary petrology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832682902?accountid=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=Geobiology&rft.atitle=Carbon+and+sulfur+isotopic+signatures+of+ancient+life+and+environment+at+the+microbial+scale%3B+Neoarchean+shales+and+carbonates&rft.au=Williford%2C+K+H%3BUshikubo%2C+T%3BLepot%2C+K%3BKitajima%2C+K%3BHallmann%2C+C%3BSpicuzza%2C+M+J%3BKozdon%2C+R%3BEigenbrode%2C+J+L%3BSummons%2C+R+E%3BValley%2C+J+W&rft.aulast=Williford&rft.aufirst=K&rft.date=2016-03-01&rft.volume=14&rft.issue=2&rft.spage=105&rft.isbn=&rft.btitle=&rft.title=Geobiology&rft.issn=14724677&rft_id=info:doi/10.1111%2Fgbi.12163 L2 - http://www.blackwellpublishing.com/journal.asp?ref=1472-4677 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 John Wiley & Sons, Chichester, United Kingdom N1 - Number of references - 94 N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - NSF grants EAR-1053466 and EAR-1355590 N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - Archean; Australasia; Australia; black shale; C-13/C-12; Carawine Dolomite; carbon; carbonates; chemical composition; clastic rocks; Hamersley Basin; isotope ratios; isotopes; Jeerinah Formation; Marra Mamba Formation; mass spectra; Mount Bruce Supergroup; Mount McRae Shale; Neoarchean; organic carbon; organic compounds; petrography; Pilbara Craton; Precambrian; S-33/S-32; S-34/S-32; secondary-ion mass spectra; sedimentary rocks; spectra; stable isotopes; sulfur; Tumbiana Formation; Western Australia; Wittenoom Formation DO - http://dx.doi.org/10.1111/gbi.12163 ER - TY - JOUR T1 - Groundwater Storage Changes: Present Status from GRACE Observations AN - 1832594248; 773448-10 AB - Satellite gravity measurements from the Gravity Recovery and Climate Experiment (GRACE) provide quantitative measurement of terrestrial water storage (TWS) changes with unprecedented accuracy. Combining GRACE-observed TWS changes and independent estimates of water change in soil and snow and surface reservoirs offers a means for estimating groundwater storage change. Since its launch in March 2002, GRACE time-variable gravity data have been successfully used to quantify long-term groundwater storage changes in different regions over the world, including northwest India, the High Plains Aquifer and the Central Valley in the USA, the North China Plain, Middle East, and southern Murray-Darling Basin in Australia, where groundwater storage has been significantly depleted in recent years (or decades). It is difficult to rely on in situ groundwater measurements for accurate quantification of large, regional-scale groundwater storage changes, especially at long timescales due to inadequate spatial and temporal coverage of in situ data and uncertainties in storage coefficients. The now nearly 13 years of GRACE gravity data provide a successful and unique complementary tool for monitoring and measuring groundwater changes on a global and regional basis. Despite the successful applications of GRACE in studying global groundwater storage change, there are still some major challenges limiting the application and interpretation of GRACE data. In this paper, we present an overview of GRACE applications in groundwater studies and discuss if and how the main challenges to using GRACE data can be addressed. Copyright 2015 Springer Science+Business Media Dordrecht JF - Surveys in Geophysics AU - Chen, Jianli AU - Famigliett, James S AU - Scanlon, Bridget R AU - Rodell, Matthew Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 397 EP - 417 PB - Springer, Dordrecht VL - 37 IS - 2 SN - 0169-3298, 0169-3298 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832594248?accountid=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=Surveys+in+Geophysics&rft.atitle=Groundwater+Storage+Changes%3A+Present+Status+from+GRACE+Observations&rft.au=Chen%2C+Jianli%3BFamigliett%2C+James+S%3BScanlon%2C+Bridget+R%3BRodell%2C+Matthew&rft.aulast=Chen&rft.aufirst=Jianli&rft.date=2016-03-01&rft.volume=37&rft.issue=2&rft.spage=397&rft.isbn=&rft.btitle=&rft.title=Surveys+in+Geophysics&rft.issn=01693298&rft_id=info:doi/10.1007%2Fs10712-015-9332-4 L2 - http://www.springerlink.com/(xfpu0bn4myxx3njya4gn4s55)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:103000,1 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 supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Last updated - 2017-01-24 N1 - CODEN - GPSVAK DO - http://dx.doi.org/10.1007/s10712-015-9332-4 ER - TY - JOUR T1 - Modeling Groundwater Depletion at Regional and Global Scales: Present State and Future Prospects AN - 1832590288; 773448-11 AB - Except for frozen water in ice and glaciers, groundwater is the world's largest distributed store of freshwater and has strategic importance to global food and water security. In this paper, the most recent advances quantifying groundwater depletion (GWD) are comprehensively reviewed. This paper critically evaluates the recently advanced modeling approaches estimating GWD at regional and global scales, and the evidence of feedbacks to the Earth system including sea-level rise associated with GWD. Finally, critical challenges and opportunities in the use of groundwater are identified for the adaption to growing food demand and uncertain climate. Copyright 2015 Springer Science+Business Media Dordrecht JF - Surveys in Geophysics AU - Wada, Yoshihide Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 419 EP - 451 PB - Springer, Dordrecht VL - 37 IS - 2 SN - 0169-3298, 0169-3298 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832590288?accountid=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=Surveys+in+Geophysics&rft.atitle=Modeling+Groundwater+Depletion+at+Regional+and+Global+Scales%3A+Present+State+and+Future+Prospects&rft.au=Wada%2C+Yoshihide&rft.aulast=Wada&rft.aufirst=Yoshihide&rft.date=2016-03-01&rft.volume=37&rft.issue=2&rft.spage=419&rft.isbn=&rft.btitle=&rft.title=Surveys+in+Geophysics&rft.issn=01693298&rft_id=info:doi/10.1007%2Fs10712-015-9347-x L2 - http://www.springerlink.com/(xfpu0bn4myxx3njya4gn4s55)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:103000,1 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 supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Last updated - 2017-01-24 N1 - CODEN - GPSVAK DO - http://dx.doi.org/10.1007/s10712-015-9347-x ER - TY - JOUR T1 - Modelling Freshwater Resources at the Global Scale: Challenges and Prospects AN - 1832589092; 773448-3 AB - Quantification of spatially and temporally resolved water flows and water storage variations for all land areas of the globe is required to assess water resources, water scarcity and flood hazards, and to understand the Earth system. This quantification is done with the help of global hydrological models (GHMs). What are the challenges and prospects in the development and application of GHMs? Seven important challenges are presented. (1) Data scarcity makes quantification of human water use difficult even though significant progress has been achieved in the last decade. (2) Uncertainty of meteorological input data strongly affects model outputs. (3) The reaction of vegetation to changing climate and CO (sub 2) concentrations is uncertain and not taken into account in most GHMs that serve to estimate climate change impacts. (4) Reasons for discrepant responses of GHMs to changing climate have yet to be identified. (5) More accurate estimates of monthly time series of water availability and use are needed to provide good indicators of water scarcity. (6) Integration of gradient-based groundwater modelling into GHMs is necessary for a better simulation of groundwater-surface water interactions and capillary rise. (7) Detection and attribution of human interference with freshwater systems by using GHMs are constrained by data of insufficient quality but also GHM uncertainty itself. Regarding prospects for progress, we propose to decrease the uncertainty of GHM output by making better use of in situ and remotely sensed observations of output variables such as river discharge or total water storage variations by multi-criteria validation, calibration or data assimilation. Finally, we present an initiative that works towards the vision of hyperresolution global hydrological modelling where GHM outputs would be provided at a 1-km resolution with reasonable accuracy. Copyright 2016 Springer Science+Business Media Dordrecht and 2015 The Author(s) JF - Surveys in Geophysics AU - Doell, Petra AU - Douville, Herve AU - Guentner, Andreas AU - Mueller Schmied, Hannes AU - Wada, Yoshihide Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 195 EP - 221 PB - Springer, Dordrecht VL - 37 IS - 2 SN - 0169-3298, 0169-3298 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832589092?accountid=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=Surveys+in+Geophysics&rft.atitle=Modelling+Freshwater+Resources+at+the+Global+Scale%3A+Challenges+and+Prospects&rft.au=Doell%2C+Petra%3BDouville%2C+Herve%3BGuentner%2C+Andreas%3BMueller+Schmied%2C+Hannes%3BWada%2C+Yoshihide&rft.aulast=Doell&rft.aufirst=Petra&rft.date=2016-03-01&rft.volume=37&rft.issue=2&rft.spage=195&rft.isbn=&rft.btitle=&rft.title=Surveys+in+Geophysics&rft.issn=01693298&rft_id=info:doi/10.1007%2Fs10712-015-9343-1 L2 - http://www.springerlink.com/(xfpu0bn4myxx3njya4gn4s55)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:103000,1 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 supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Last updated - 2017-01-24 N1 - CODEN - GPSVAK DO - http://dx.doi.org/10.1007/s10712-015-9343-1 ER - TY - JOUR T1 - Electron energization and structure of the diffusion region during asymmetric reconnection AN - 1808369385; PQ0002953221 AB - Results from particle-in-cell simulations of reconnection with asymmetric upstream conditions are reported to elucidate electron energization and structure of the electron diffusion region (EDR). Acceleration of unmagnetized electrons results in discrete structures in the distribution functions and supports the intense current and perpendicular heating in the EDR. The accelerated electrons are cyclotron turned by the reconnected magnetic field to produce the outflow jets, and as such, the acceleration by the reconnection electric field is limited, leading to resistivity without particle-particle or particle-wave collisions. A map of electron distributions is constructed, and its spatial evolution is compared with quantities previously proposed to be EDR identifiers to enable effective identifications of the EDR in terrestrial magnetopause reconnection. Key Points * Accelerated unmagnetized electrons support the reconnection current in asymmetric reconnection * Cyclotron turning by the normal magnetic field limits the reconnection current * Accelerated sheath electrons form a prominent signature to identify the electron diffusion region JF - Geophysical Research Letters AU - Chen, Li-Jen AU - Hesse, Michael AU - Wang, Shan AU - Bessho, Naoki AU - Daughton, William AD - NASA Goddard Space Flight Center, Greenbelt, Maryland, USA. Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 2405 EP - 2412 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 43 IS - 6 SN - 0094-8276, 0094-8276 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Marine KW - Simulation Analysis KW - Jets KW - Ecological distribution KW - Outflow KW - Electric Fields KW - Acceleration KW - Resistivity KW - Ocean currents KW - Magnetic fields KW - Electric fields KW - Evolution KW - SW 0810:General KW - Q2 09182:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1808369385?accountid=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=Geophysical+Research+Letters&rft.atitle=Electron+energization+and+structure+of+the+diffusion+region+during+asymmetric+reconnection&rft.au=Chen%2C+Li-Jen%3BHesse%2C+Michael%3BWang%2C+Shan%3BBessho%2C+Naoki%3BDaughton%2C+William&rft.aulast=Chen&rft.aufirst=Li-Jen&rft.date=2016-03-01&rft.volume=43&rft.issue=6&rft.spage=2405&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2016GL068243 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-08-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Ocean currents; Magnetic fields; Electric fields; Ecological distribution; Outflow; Acceleration; Simulation Analysis; Jets; Electric Fields; Evolution; Resistivity; Marine DO - http://dx.doi.org/10.1002/2016GL068243 ER - TY - JOUR T1 - Spectral slopes of the absorption coefficient of colored dissolved and detrital material inverted from UV-visible remote sensing reflectance AN - 1800396564; 2016-058916 AB - The spectral slope of the absorption coefficient of colored dissolved and detrital material (CDM), S (sub cdm) (units: nm (super -1) ), is an important optical parameter for characterizing the absorption spectral shape of CDM. Although highly variable in natural waters, in most remote sensing algorithms, this slope is either kept as a constant or empirically modeled with multiband ocean color in the visible domain. In this study, we explore the potential of semianalytically retrieving S (sub cdm) with added ocean color information in the ultraviolet (UV) range between 360 and 400 nm. Unique features of hyperspectral remote sensing reflectance in the UV-visible wavelengths (360-500 nm) have been observed in various waters across a range of coastal and open ocean environments. Our data and analyses indicate that ocean color in the UV domain is particularly sensitive to the variation of the CDM spectral slope. Here, we used a synthesized dataset to show that adding UV wavelengths to the ocean color measurements will improve the retrieval of S (sub cdm) from remote sensing reflectance considerably, while the spectral band settings of past and current satellite ocean color sensors cannot fully account for the spectral variation of remote sensing reflectance. Results of this effort support the concept to include UV wavelengths in the next generation of satellite ocean color sensors. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Oceans AU - Wei, Jianwei AU - Lee, Zhongping AU - Ondrusek, Michael AU - Mannino, Antonio AU - Tzortziou, Maria AU - Armstrong, Roy Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 1953 EP - 1969 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 3 SN - 2169-9275, 2169-9275 KW - sea water KW - solutes KW - equations KW - satellite methods KW - information management KW - data management KW - absorption KW - physical properties KW - marine sediments KW - optical properties KW - color KW - mathematical methods KW - sediments KW - ultraviolet spectra KW - spectra KW - remote sensing KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800396564?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Oceans&rft.atitle=Spectral+slopes+of+the+absorption+coefficient+of+colored+dissolved+and+detrital+material+inverted+from+UV-visible+remote+sensing+reflectance&rft.au=Wei%2C+Jianwei%3BLee%2C+Zhongping%3BOndrusek%2C+Michael%3BMannino%2C+Antonio%3BTzortziou%2C+Maria%3BArmstrong%2C+Roy&rft.aulast=Wei&rft.aufirst=Jianwei&rft.date=2016-03-01&rft.volume=121&rft.issue=3&rft.spage=1953&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Oceans&rft.issn=21699275&rft_id=info:doi/10.1002%2F2015JC011415 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 40 N1 - PubXState - DC N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2016-06-30 N1 - SubjectsTermNotLitGenreText - absorption; color; data management; equations; information management; marine sediments; mathematical methods; optical properties; physical properties; remote sensing; satellite methods; sea water; sediments; solutes; spectra; ultraviolet spectra DO - http://dx.doi.org/10.1002/2015JC011415 ER - TY - JOUR T1 - Spectral characterization of acid weathering products on Martian basaltic glass AN - 1800396530; 2016-058719 AB - For the first time, direct infrared spectral analyses of glasses with Martian compositions, altered under controlled conditions, are presented in order to assess surface weathering and regolith development on Mars. Basaltic glasses of Irvine and Backstay composition were synthesized and altered using H (sub 2) SO (sub 4) -HCl acid solutions (pH 0-4). Scanning electron microscopy/energy dispersive spectroscopy, X-ray diffraction, Raman, and infrared spectral measurements were acquired for each reaction product. Infrared spectra were also acquired from previously synthesized and altered glasses with Pathfinder-measured compositions. Acid alteration on particles in the most acidic solutions (pH or = 2; small amounts of sulfates were reworked with unaltered material; there is a prevalence of intermediate-to-high silica glass in Martian starting materials (more resistant to acid alteration); primary or added sulfur were lacking; alteration features are obscured by dust; and/or large-scale, pervasive, acid sulfate weathering of the Martian surface did not occur. These results highlight the need to better understand the spectral properties of altered Martian surface material in order to enhance the interpretation of remote spectra for altered terrains. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - Yant, Marcella AU - Rogers, A Deanne AU - Nekvasil, Hanna AU - Zhao, Yu-Yan Sara AU - Bristow, Tom Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 516 EP - 541 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 3 SN - 2169-9097, 2169-9097 KW - volcanic rocks KW - glasses KW - X-ray diffraction data KW - sulfates KW - igneous rocks KW - thermal infrared spectra KW - Mars KW - weathering KW - near-field spectra KW - infrared spectra KW - terrestrial planets KW - pyroclastics KW - planets KW - Raman spectra KW - spectra KW - chemical composition KW - basaltic composition KW - synthetic materials KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800396530?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Planets&rft.atitle=Spectral+characterization+of+acid+weathering+products+on+Martian+basaltic+glass&rft.au=Yant%2C+Marcella%3BRogers%2C+A+Deanne%3BNekvasil%2C+Hanna%3BZhao%2C+Yu-Yan+Sara%3BBristow%2C+Tom&rft.aulast=Yant&rft.aufirst=Marcella&rft.date=2016-03-01&rft.volume=121&rft.issue=3&rft.spage=516&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2015JE004969 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 91 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2016-06-30 N1 - SubjectsTermNotLitGenreText - basaltic composition; chemical composition; glasses; igneous rocks; infrared spectra; Mars; near-field spectra; planets; pyroclastics; Raman spectra; spectra; sulfates; synthetic materials; terrestrial planets; thermal infrared spectra; volcanic rocks; weathering; X-ray diffraction data DO - http://dx.doi.org/10.1002/2015JE004969 ER - TY - JOUR T1 - Potential precursor compounds for chlorohydrocarbons detected in Gale Crater, Mars, by the SAM instrument suite on the Curiosity Rover AN - 1800394759; 2016-058711 AB - The detection of chlorinated organic compounds in near-surface sedimentary rocks by the Sample Analysis at Mars (SAM) instrument suite aboard the Mars Science Laboratory Curiosity rover represents an important step toward characterizing habitable environments on Mars. However, this discovery also raises questions about the identity and source of their precursor compounds and the processes by which they become chlorinated. Here we present the results of analog experiments, conducted under conditions similar to SAM gas chromatography-mass spectrometry analyses, in which we pyrolyzed potential precursor compounds in the presence of various Cl salts and Fe oxides that have been identified in Martian sediments. While chloromethanes could not be unambiguously identified, 1,2-dichloropropane (1,2-DCP), which is one of the chlorinated compounds identified in SAM data, is formed from the chlorination of aliphatic precursors. Additionally, propanol produced more 1,2-DCP than nonfunctionalized aliphatics such as propane or hexanes. Chlorinated benzenes ranging from chlorobenzene to hexachlorobenzene were identified in experiments with benzene carboxylic acids but not with benzene or toluene. Lastly, the distribution of chlorinated benzenes depended on both the substrate species and the nature and concentration of the Cl salt. Ca and Mg perchlorate, both of which release O (sub 2) in addition to Cl (sub 2) and HCl upon pyrolysis, formed less chlorobenzene relative to the sum of all chlorinated benzenes than in experiments with ferric chloride. FeCl (sub 3) , a Lewis acid, catalyzes chlorination but does not aid combustion. Accordingly, both the precursor chemistry and sample mineralogy exert important controls on the distribution of chlorinated organics. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - Miller, Kristen E AU - Eigenbrode, Jennifer L AU - Freissinet, Caroline AU - Glavin, Daniel P AU - Kotrc, Benjamin AU - Francois, Pascaline AU - Summons, Roger E Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 296 EP - 308 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 3 SN - 2169-9097, 2169-9097 KW - chlorinated hydrocarbons KW - chromatography KW - propane KW - aliphatic hydrocarbons KW - Mars KW - alkanes KW - benzene KW - Gale Crater KW - terrestrial planets KW - planets KW - gas chromatography KW - Sample Analysis at Mars KW - organic compounds KW - pyrolysis KW - hexane KW - Curiosity Rover KW - sediments KW - Mars Science Laboratory KW - hydrocarbons KW - oxides KW - halogenated hydrocarbons KW - aromatic hydrocarbons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800394759?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Planets&rft.atitle=Potential+precursor+compounds+for+chlorohydrocarbons+detected+in+Gale+Crater%2C+Mars%2C+by+the+SAM+instrument+suite+on+the+Curiosity+Rover&rft.au=Miller%2C+Kristen+E%3BEigenbrode%2C+Jennifer+L%3BFreissinet%2C+Caroline%3BGlavin%2C+Daniel+P%3BKotrc%2C+Benjamin%3BFrancois%2C+Pascaline%3BSummons%2C+Roger+E&rft.aulast=Miller&rft.aufirst=Kristen&rft.date=2016-03-01&rft.volume=121&rft.issue=3&rft.spage=296&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2015JE004939 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 30 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2016-06-30 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; aromatic hydrocarbons; benzene; chlorinated hydrocarbons; chromatography; Curiosity Rover; Gale Crater; gas chromatography; halogenated hydrocarbons; hexane; hydrocarbons; Mars; Mars Science Laboratory; organic compounds; oxides; planets; propane; pyrolysis; Sample Analysis at Mars; sediments; terrestrial planets DO - http://dx.doi.org/10.1002/2015JE004939 ER - TY - JOUR T1 - Rb-Sr and Sm-Nd isotopic and REE studies of igneous components in the bulk matrix domain of Martian breccia Northwest Africa 7034 AN - 1797543905; 2016-053921 AB - The bulk matrix domain of the Martian breccia NWA 7034 was examined petrographically and isotopically to better understand the provenance and age of the source material that make up the breccia. Both (super 147) Sm- (super 143) Nd and (super 146) Sm- (super 142) Nd age results for mineral separates from the bulk matrix portion of breccia NWA 7034 suggest that various lithological components in the breccia probably formed contemporaneously approximately 4.44 Ga ago. This old age is in excellent agreement with the upper intersection ages (4.35-4.45 Ga) for U-Pb discordia and also concordia defined by zircon and baddeleyite grains in matrix and igneous-textured clasts. Consequently, we confirm an ancient age for the igneous components that make up the NWA 7034 breccia. Substantial disturbance in the Rb-Sr system was detected, and no age significance could be gleaned from our Rb-Sr data. The disturbance to the Rb-Sr system may be due to a thermal event recorded by bulk-rock K-Ar ages of 1.56 Ga and U-Pb ages of phosphates at about 1.35-1.5 Ga, which suggest partial resetting from an unknown thermal event(s), possibly accompanying breccia formation. The NWA 7034 bulk rock is LREE enriched and similar to KREEP-rich lunar rocks, which indicates that the earliest Martian crust was geochemically enriched. This enrichment supports the idea that the crust is one of the enriched geochemical reservoirs on Mars that have been detected in studies of other Martian meteorites. Abstract Copyright Published 2016. This article is a U.S. Government work and is in the public domain in the USA. JF - Meteoritics & Planetary Science AU - Nyquist, Laurence E AU - Shih, Chi-Yu AU - McCubbin, Francis M AU - Santos, Alison R AU - Shearer, Charles K AU - Peng, Zhan X AU - Burger, Paul V AU - Agee, Carl B Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 483 EP - 498 PB - Meteoritical Society, Fayetteville, AR VL - 51 IS - 3 SN - 1086-9379, 1086-9379 KW - silicates KW - Northwest Africa Meteorites KW - stony meteorites KW - ion probe data KW - isotopes KW - Martian meteorites KW - igneous rocks KW - enrichment KW - mass spectra KW - Mars KW - Rb/Sr KW - electron probe data KW - meteorites KW - pyroxene group KW - chronology KW - whole rock KW - NWA 7034 KW - dates KW - absolute age KW - framework silicates KW - spectra KW - rare earths KW - heterogeneity KW - chain silicates KW - plagioclase KW - breccia KW - matrix KW - achondrites KW - terrestrial planets KW - ICP mass spectra KW - provenance KW - planets KW - KREEP KW - Sm/Nd KW - metals KW - feldspar group KW - crust KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1797543905?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+isotopic+and+REE+studies+of+igneous+components+in+the+bulk+matrix+domain+of+Martian+breccia+Northwest+Africa+7034&rft.au=Nyquist%2C+Laurence+E%3BShih%2C+Chi-Yu%3BMcCubbin%2C+Francis+M%3BSantos%2C+Alison+R%3BShearer%2C+Charles+K%3BPeng%2C+Zhan+X%3BBurger%2C+Paul+V%3BAgee%2C+Carl+B&rft.aulast=Nyquist&rft.aufirst=Laurence&rft.date=2016-03-01&rft.volume=51&rft.issue=3&rft.spage=483&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12606 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 46 N1 - PubXState - AR N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2016-06-17 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - absolute age; achondrites; breccia; chain silicates; chronology; crust; dates; electron probe data; enrichment; feldspar group; framework silicates; heterogeneity; ICP mass spectra; igneous rocks; ion probe data; isotopes; KREEP; Mars; Martian meteorites; mass spectra; matrix; metals; meteorites; Northwest Africa Meteorites; NWA 7034; plagioclase; planets; provenance; pyroxene group; rare earths; Rb/Sr; silicates; Sm/Nd; spectra; stony meteorites; terrestrial planets; whole rock DO - http://dx.doi.org/10.1111/maps.12606 ER - TY - JOUR T1 - Highly siderophile element abundances in Eoarchean komatiite and basalt protoliths AN - 1797539629; 2016-051330 AB - Plume-derived, Mg-rich, volcanic rocks (komatiites, high-Mg basalts, and their metamorphic equivalents) can record secular changes in the highly siderophile element (HSE) abundances of mantle sources. An apparent secular time-dependent enrichment trend in HSE abundances from Paleoarchean to Paleoproterozoic mantle-derived rocks could represent the protracted homogenization of a Late Veneer chondritic contaminant into the pre-Late Veneer komatiite source. To search for a possible time dependence of a late accretion signature in the Eoarchean mantle, we report new data from rare >3700 Myr-old mafic and ultramafic schists locked in supracrustal belts from the Inukjuak domain (Quebec, Canada) and the Akilia association (West Greenland). Our analysis shows that some of these experienced HSE mobility and/or include a cumulate component (Touboul et al. in Chem Geol 383:63-75, 2014), whereas several of the oldest samples show some of the most depleted HSE abundances measured for rocks of this composition. We consider these new data for the oldest documented rocks of komatiite protolith in light of the Late Veneer hypothesis. Copyright 2016 Springer-Verlag Berlin Heidelberg JF - Contributions to Mineralogy and Petrology AU - Frank, Elizabeth A AU - Maier, Wolfgang D AU - Mojzsis, Stephen J Y1 - 2016/03// PY - 2016 DA - March 2016 EP - Article 29 PB - Springer International, Heidelberg - New York VL - 171 IS - 3 SN - 0010-7999, 0010-7999 KW - volcanic rocks KW - stony meteorites KW - Quebec KW - igneous rocks KW - metamorphic belts KW - West Greenland KW - mass spectra KW - mantle KW - komatiite KW - ultramafic composition KW - platinum group KW - meteorites KW - Greenland KW - metamorphic rocks KW - basalts KW - Archean KW - spectra KW - rare earths KW - chondrites KW - chemical composition KW - Akilia KW - protoliths KW - Precambrian KW - schists KW - Arctic region KW - siderophile elements KW - supracrustals KW - impacts KW - ICP mass spectra KW - Canada KW - metals KW - Eoarchean KW - Inukjuak Domain KW - Eastern Canada 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/1797539629?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Contributions+to+Mineralogy+and+Petrology&rft.atitle=Highly+siderophile+element+abundances+in+Eoarchean+komatiite+and+basalt+protoliths&rft.au=Frank%2C+Elizabeth+A%3BMaier%2C+Wolfgang+D%3BMojzsis%2C+Stephen+J&rft.aulast=Frank&rft.aufirst=Elizabeth&rft.date=2016-03-01&rft.volume=171&rft.issue=3&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Contributions+to+Mineralogy+and+Petrology&rft.issn=00107999&rft_id=info:doi/10.1007%2Fs00410-016-1243-y L2 - http://www.springerlink.com/(zmx2wiu4y01pcgigj5i3jxf5)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100406,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 107 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2016-06-17 N1 - CODEN - CMPEAP N1 - SubjectsTermNotLitGenreText - Akilia; Archean; Arctic region; basalts; Canada; chemical composition; chondrites; Eastern Canada; Eoarchean; Greenland; ICP mass spectra; igneous rocks; impacts; Inukjuak Domain; komatiite; mantle; mass spectra; metals; metamorphic belts; metamorphic rocks; meteorites; platinum group; Precambrian; protoliths; Quebec; rare earths; schists; siderophile elements; spectra; stony meteorites; supracrustals; ultramafic composition; volcanic rocks; West Greenland DO - http://dx.doi.org/10.1007/s00410-016-1243-y ER - TY - JOUR T1 - Implications of projected climate change for ground water recharge in the Western United States AN - 1793206348; 2016-049504 AB - Existing studies on the impacts of climate change on groundwater recharge are either global or basin/location-specific. The global studies lack the specificity to inform decision making, while the local studies do little to clarify potential changes over large regions (major river basins, states, or groups of states), a scale often important in the development of water policy. An analysis of the potential impact of climate change on groundwater recharge across the western United States (west of 100 degrees longitude) is presented synthesizing existing studies and applying current knowledge of recharge processes and amounts. Eight representative aquifers located across the region were evaluated. For each aquifer published recharge budget components were converted into four standard recharge mechanisms: diffuse, focused, irrigation, and mountain-systems recharge. Future changes in individual recharge mechanisms and total recharge were then estimated for each aquifer. Model-based studies of projected climate-change effects on recharge were available and utilized for half of the aquifers. For the remainder, forecasted changes in temperature and precipitation were logically propagated through each recharge mechanism producing qualitative estimates of direction of changes in recharge only (not magnitude). Several key patterns emerge from the analysis. First, the available estimates indicate average declines of 10-20% in total recharge across the southern aquifers, but with a wide range of uncertainty that includes no change. Second, the northern set of aquifers will likely incur little change to slight increases in total recharge. Third, mountain system recharge is expected to decline across much of the region due to decreased snowpack, with that impact lessening with higher elevation and latitude. Factors contributing the greatest uncertainty in the estimates include: (1) limited studies quantitatively coupling climate projections to recharge estimation methods using detailed, process-based numerical models; (2) a generally poor understanding of hydrologic flowpaths and processes in mountain systems; (3) difficulty predicting the response of focused recharge to potential changes in the frequency and intensity of extreme precipitation events; and (4) unconstrained feedbacks between climate, irrigation practices, and recharge in highly developed aquifer systems. Abstract Copyright (2016) Elsevier, B.V. JF - Journal of Hydrology AU - Meixner, Thomas AU - Manning, Andrew H AU - Stonestrom, David A AU - Allen, Diana M AU - Ajami, Hoori AU - Blasch, Kyle W AU - Brookfield, Andrea E AU - Castro, Christopher L AU - Clark, Jordan F AU - Gochis, David J AU - Flint, Alan L AU - Neff, Kirstin L AU - Niraula, Rewati AU - Rodell, Matthew AU - Scanlon, Bridget R AU - Singha, Kamini AU - Walvoord, Michelle A Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 124 EP - 138 PB - Elsevier, Amsterdam VL - 534 SN - 0022-1694, 0022-1694 KW - United States KW - Sonora Mexico KW - hydrogeology KW - environmental effects KW - climate change KW - relief KW - ground water KW - spatial distribution KW - Spokane Basin KW - Western U.S. KW - Death Valley KW - drainage basins KW - High Plains Aquifer KW - Williston Basin KW - climate KW - processes KW - North America KW - patterns KW - numerical models KW - rainfall KW - statistical analysis KW - prediction KW - aquifers KW - models KW - Central Valley KW - recharge KW - Mexico KW - mathematical methods KW - Columbia Plateau KW - geomorphology KW - water resources KW - Tri-Canyons KW - land use KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1793206348?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Implications+of+projected+climate+change+for+ground+water+recharge+in+the+Western+United+States&rft.au=Meixner%2C+Thomas%3BManning%2C+Andrew+H%3BStonestrom%2C+David+A%3BAllen%2C+Diana+M%3BAjami%2C+Hoori%3BBlasch%2C+Kyle+W%3BBrookfield%2C+Andrea+E%3BCastro%2C+Christopher+L%3BClark%2C+Jordan+F%3BGochis%2C+David+J%3BFlint%2C+Alan+L%3BNeff%2C+Kirstin+L%3BNiraula%2C+Rewati%3BRodell%2C+Matthew%3BScanlon%2C+Bridget+R%3BSingha%2C+Kamini%3BWalvoord%2C+Michelle+A&rft.aulast=Meixner&rft.aufirst=Thomas&rft.date=2016-03-01&rft.volume=534&rft.issue=&rft.spage=124&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology&rft.issn=00221694&rft_id=info:doi/10.1016%2Fj.jhydrol.2015.12.027 L2 - http://www.sciencedirect.com/science/journal/00221694 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 92 N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-06-02 N1 - CODEN - JHYDA7 N1 - SubjectsTermNotLitGenreText - aquifers; Central Valley; climate; climate change; Columbia Plateau; Death Valley; drainage basins; environmental effects; geomorphology; ground water; High Plains Aquifer; hydrogeology; land use; mathematical methods; Mexico; models; North America; numerical models; patterns; prediction; processes; rainfall; recharge; relief; Sonora Mexico; spatial distribution; Spokane Basin; statistical analysis; Tri-Canyons; United States; water resources; Western U.S.; Williston Basin DO - http://dx.doi.org/10.1016/j.jhydrol.2015.12.027 ER - TY - JOUR T1 - Magnetopause erosion during the 17 March 2015 magnetic storm: Combined field-aligned currents, auroral oval, and magnetopause observations AN - 1790973701; PQ0002953228 AB - We present multimission observations of field-aligned currents, auroral oval, and magnetopause crossings during the 17 March 2015 magnetic storm. Dayside reconnection is expected to transport magnetic flux, strengthen field-aligned currents, lead to polar cap expansion and magnetopause erosion. Our multimission observations assemble evidence for all these manifestations. After a prolonged period of strongly southward interplanetary magnetic field, Swarm and AMPERE observe significant intensification of field-aligned currents. The dayside auroral oval, as seen by DMSP, appears as a thin arc associated with ongoing dayside reconnection. Both the field-aligned currents and the auroral arc move equatorward reaching as low as ~60 degree magnetic latitude. Strong magnetopause erosion is evident in the in situ measurements of the magnetopause crossings by GOES 13/15 and MMS. The coordinated Swarm, AMPERE, DMSP, MMS and GOES observations, with both global and in situ coverage of the key regions, provide a clear demonstration of the effects of dayside reconnection on the entire magnetosphere. Key Points * Observed manifestations of dayside reconnection on field-aligned currents and auroral oval * Observed strong magnetopause erosion during storm main phase * Demonstrated effects of dayside reconnection on entire magnetosphere JF - Geophysical Research Letters AU - Le, G AU - Luehr, H AU - Anderson, B J AU - Strangeway, R J AU - Russell, C T AU - Singer, H AU - Slavin, JA AU - Zhang, Y AU - Huang, T AU - Bromund, K AU - Chi, P J AU - Lu, G AU - Fischer, D AU - Kepko, EL AU - Leinweber, H K AU - Magnes, W AU - Nakamura, R AU - Plaschke, F AU - Park, J AU - Rauberg, J AU - Stolle, C AU - Torbert, R B AD - NASA Goddard Space Flight Center, Greenbelt, Maryland, USA. Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 2396 EP - 2404 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 43 IS - 6 SN - 0094-8276, 0094-8276 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Auroral oval KW - Expansion KW - Interplanetary magnetic field KW - Storms KW - Magnetopause KW - Magnetic fields KW - Erosion KW - Magnetosphere KW - Polar cap KW - Geomagnetic storms KW - Fluctuations KW - Q2 09262:Methods and instruments KW - SW 0810:General KW - M2 523.62:Solar Wind, Interplanetary Plasma (523.62) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790973701?accountid=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=Geophysical+Research+Letters&rft.atitle=Magnetopause+erosion+during+the+17+March+2015+magnetic+storm%3A+Combined+field-aligned+currents%2C+auroral+oval%2C+and+magnetopause+observations&rft.au=Le%2C+G%3BLuehr%2C+H%3BAnderson%2C+B+J%3BStrangeway%2C+R+J%3BRussell%2C+C+T%3BSinger%2C+H%3BSlavin%2C+JA%3BZhang%2C+Y%3BHuang%2C+T%3BBromund%2C+K%3BChi%2C+P+J%3BLu%2C+G%3BFischer%2C+D%3BKepko%2C+EL%3BLeinweber%2C+H+K%3BMagnes%2C+W%3BNakamura%2C+R%3BPlaschke%2C+F%3BPark%2C+J%3BRauberg%2C+J%3BStolle%2C+C%3BTorbert%2C+R+B&rft.aulast=Le&rft.aufirst=G&rft.date=2016-03-01&rft.volume=43&rft.issue=6&rft.spage=2396&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2016GL068257 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Magnetic fields; Storms; Auroral oval; Erosion; Magnetosphere; Polar cap; Geomagnetic storms; Interplanetary magnetic field; Magnetopause; Expansion; Fluctuations DO - http://dx.doi.org/10.1002/2016GL068257 ER - TY - JOUR T1 - A Framework for Evaluating Climate Model Performance Metrics AN - 1790972048; PQ0003081517 AB - Given the large amount of climate model output generated from the series of simulations from phase 5 of the Coupled Model Intercomparison Project (CMIP5), a standard set of performance metrics would facilitate model intercomparison and tracking performance improvements. However, no framework exists for the evaluation of performance metrics. The proposed framework systematically integrates observations into metric assessment to quantitatively evaluate metrics. An optimal metric is defined in this framework as one that measures a behavior that is strongly linked to model quality in representing mean-state present-day climate. The goal of the framework is to objectively and quantitatively evaluate the ability of a performance metric to represent overall model quality. The framework is demonstrated, and the design principles are discussed using a novel set of performance metrics, which assess the simulation of top-of-atmosphere (TOA) and surface radiative flux variance and probability distributions within 34 CMIP5 models against Clouds and the Earth's Radiant Energy System (CERES) observations and GISS Surface Temperature Analysis (GISTEMP). Of the 44 tested metrics, the optimal metrics are found to be those that evaluate global-mean TOA radiation flux variance. JF - Journal of Climate AU - Baker, Noel C AU - Taylor, Patrick C AD - NASA Langley Research Center, Hampton, Virginia Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 1773 EP - 1782 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 29 IS - 5 SN - 0894-8755, 0894-8755 KW - Meteorological & Geoastrophysical Abstracts; Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Physical Meteorology and Climatology KW - Radiative fluxes KW - Mathematical and statistical techniques KW - Ranking methods KW - Statistical techniques KW - Models and modeling KW - Climate models KW - Coupled models KW - Variability KW - Climate variability KW - Surface temperatures KW - Climate change KW - Evaluation KW - Assessments KW - Asteroids KW - Radiation KW - Modelling KW - Probability Distribution KW - Climates KW - Radiation flux KW - Tracking KW - Model Studies KW - Surface temperature KW - Clouds KW - Performance Evaluation KW - Numerical simulations KW - Standards KW - Fluctuations KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General KW - M2 551.581:Latitudinal Influences (551.581) KW - Q2 09244:Air-sea coupling UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790972048?accountid=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+Climate&rft.atitle=A+Framework+for+Evaluating+Climate+Model+Performance+Metrics&rft.au=Baker%2C+Noel+C%3BTaylor%2C+Patrick+C&rft.aulast=Baker&rft.aufirst=Noel&rft.date=2016-03-01&rft.volume=29&rft.issue=5&rft.spage=1773&rft.isbn=&rft.btitle=&rft.title=Journal+of+Climate&rft.issn=08948755&rft_id=info:doi/10.1175%2FJCLI-D-15-0114.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Number of references - 30 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Radiation; Climate change; Tracking; Surface temperature; Modelling; Clouds; Surface temperatures; Climate models; Asteroids; Numerical simulations; Radiation flux; Evaluation; Performance Evaluation; Probability Distribution; Assessments; Climates; Standards; Fluctuations; Model Studies DO - http://dx.doi.org/10.1175/JCLI-D-15-0114.1 ER - TY - JOUR T1 - Cloud Object Analysis of CERES Aqua Observations of Tropical and Subtropical Cloud Regimes: Four-Year Climatology AN - 1790970951; PQ0003081514 AB - Four distinct types of cloud objects-tropical deep convection, boundary layer cumulus, stratocumulus, and overcast stratus-were previously identified from CERES Tropical Rainfall Measuring Mission (TRMM) data. Six additional types of cloud objects-cirrus, cirrocumulus, cirrostratus, altocumulus, transitional altocumulus, and solid altocumulus-are identified from CERES Aqua satellite data in this study. The selection criteria for the 10 cloud object types are based on CERES footprint cloud fraction and cloud-top pressure, as well as cloud optical depth for the high-cloud types. The cloud object is a contiguous region of the earth with a single dominant cloud-system type. The data are analyzed according to cloud object types, sizes, regions, and associated environmental conditions. The frequency of occurrence and probability density functions (PDFs) of selected physical properties are produced for the July 2006-June 2010 period. It is found that deep convective and boundary layer types dominate the total population while the six new types other than cirrostratus do not contribute much in the tropics and subtropics. There are pronounced differences in the size spectrum between the types, with the largest ones being of deep convective type and with stratocumulus and overcast types over the ocean basins off west coasts. The summary PDFs of radiative and cloud physical properties differ greatly among the size categories. For boundary layer cloud types, the differences come primarily from the locations of cloud objects: for example, coasts versus open oceans. They can be explained by considerable variations in large-scale environmental conditions with cloud object size, which will be further qualified in future studies. JF - Journal of Climate AU - Xu, Kuan-Man AU - Wong, Takmeng AU - Dong, Shengtao AU - Chen, Feng AU - Kato, Seiji AU - Taylor, Patrick C AD - Climate Science Branch, NASA Langley Research Center, Hampton, Virginia Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 1617 EP - 1638 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 29 IS - 5 SN - 0894-8755, 0894-8755 KW - Meteorological & Geoastrophysical Abstracts; Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Atm/Ocean Structure/ Phenomena KW - Boundary layer KW - Convective clouds KW - Cumulus clouds KW - Physical Meteorology and Climatology KW - Cirrus clouds KW - Climatology KW - Radiative fluxes KW - Remote Sensing KW - Convection KW - Boundary Layers KW - Convection development KW - Asteroids KW - Physical Properties KW - Ocean basins KW - Coasts KW - Biological surveys KW - Marine KW - Climates KW - Brackish KW - Probability density function KW - Physical properties KW - Clouds KW - Satellite data KW - Oceans KW - Boundary layers KW - Tropical environment KW - Convective activity KW - Cloud optical depth KW - Tropical Rainfall Measuring Mission (TRMM) KW - Environmental conditions KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General 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/1790970951?accountid=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+Climate&rft.atitle=Cloud+Object+Analysis+of+CERES+Aqua+Observations+of+Tropical+and+Subtropical+Cloud+Regimes%3A+Four-Year+Climatology&rft.au=Xu%2C+Kuan-Man%3BWong%2C+Takmeng%3BDong%2C+Shengtao%3BChen%2C+Feng%3BKato%2C+Seiji%3BTaylor%2C+Patrick+C&rft.aulast=Xu&rft.aufirst=Kuan-Man&rft.date=2016-03-01&rft.volume=29&rft.issue=5&rft.spage=1617&rft.isbn=&rft.btitle=&rft.title=Journal+of+Climate&rft.issn=08948755&rft_id=info:doi/10.1175%2FJCLI-D-14-00836.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Number of references - 55 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Clouds; Convection; Biological surveys; Physical properties; Tropical environment; Boundary layers; Ocean basins; Climatology; Environmental conditions; Satellite data; Asteroids; Cloud optical depth; Convective activity; Tropical Rainfall Measuring Mission (TRMM); Convection development; Probability density function; Remote Sensing; Oceans; Climates; Physical Properties; Boundary Layers; Coasts; Marine; Brackish DO - http://dx.doi.org/10.1175/JCLI-D-14-00836.1 ER - TY - JOUR T1 - On the electron diffusion region in asymmetric reconnection with a guide magnetic field AN - 1790956090; PQ0002953185 AB - Particle-in-cell simulations in a 2.5-D geometry and analytical theory are employed to study the electron diffusion region in asymmetric reconnection with a guide magnetic field. The analysis presented here demonstrates that similar to the case without guide field, in-plane flow stagnation and null of the in-plane magnetic field are well separated. In addition, it is shown that the electric field at the local magnetic X point is again dominated by inertial effects, whereas it remains dominated by nongyrotropic pressure effects at the in-plane flow stagnation point. A comparison between local electron Larmor radii and the magnetic gradient scale lengths predicts that distribution should become nongyrotropic in a region enveloping both field reversal and flow stagnation points. This prediction is verified by an analysis of modeled electron distributions, which show clear evidence of mixing in the critical region. Key Points * Magnetic reconnection involves mixing of distributions from both inflow regions * The electric field at the flow stagnation point is always given by nongyrotropic pressure tensor effects * Even here, magnetic gradient scale lengths compared to Larmor radii are necessary to facilitate reconnection JF - Geophysical Research Letters AU - Hesse, Michael AU - Liu, Yi-Hsin AU - Chen, Li-Jen AU - Bessho, Naoki AU - Kuznetsova, Masha AU - Birn, Joachim AU - Burch, James L AD - Heliophysics Science Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA. Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 2359 EP - 2364 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 43 IS - 6 SN - 0094-8276, 0094-8276 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Flow KW - Electron distribution KW - Simulation Analysis KW - Electric Fields KW - Electric field KW - Identification KW - Identification keys KW - Magnetic fields KW - Numerical simulations KW - Electric fields KW - Pressure effects KW - Magnetic reconnection KW - Q2 09262:Methods and instruments KW - SW 0810:General KW - M2 551.511:Mechanics and Thermodynamics of the Atmosphere (551.511) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790956090?accountid=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=Geophysical+Research+Letters&rft.atitle=On+the+electron+diffusion+region+in+asymmetric+reconnection+with+a+guide+magnetic+field&rft.au=Hesse%2C+Michael%3BLiu%2C+Yi-Hsin%3BChen%2C+Li-Jen%3BBessho%2C+Naoki%3BKuznetsova%2C+Masha%3BBirn%2C+Joachim%3BBurch%2C+James+L&rft.aulast=Hesse&rft.aufirst=Michael&rft.date=2016-03-01&rft.volume=43&rft.issue=6&rft.spage=2359&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2016GL068373 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Magnetic fields; Electric fields; Pressure effects; Identification; Identification keys; Electron distribution; Numerical simulations; Magnetic reconnection; Electric field; Flow; Simulation Analysis; Electric Fields DO - http://dx.doi.org/10.1002/2016GL068373 ER - TY - JOUR T1 - Benchmarking NLDAS-2 Soil Moisture and Evapotranspiration to Separate Uncertainty Contributions AN - 1790928435; PQ0003081578 AB - Model benchmarking allows us to separate uncertainty in model predictions caused by model inputs from uncertainty due to model structural error. This method is extended with a "large sample" approach (using data from multiple field sites) to measure prediction uncertainty caused by errors in 1) forcing data, 2) model parameters, and 3) model structure, and use it to compare the efficiency of soil moisture state and evapotranspiration flux predictions made by the four land surface models in phase 2 of the North American Land Data Assimilation System (NLDAS-2). Parameters dominated uncertainty in soil moisture estimates and forcing data dominated uncertainty in evapotranspiration estimates; however, the models themselves used only a fraction of the information available to them. This means that there is significant potential to improve all three components of NLDAS-2. In particular, continued work toward refining the parameter maps and lookup tables, the forcing data measurement and processing, and also the land surface models themselves, has potential to result in improved estimates of surface mass and energy balances. JF - Journal of Hydrometeorology AU - Nearing, Grey S AU - Mocko, David M AU - Peters-Lidard, Christa D AU - Kumar, Sujay V AU - Xia, Youlong AD - Hydrological Sciences Laboratory, NASA GSFC, Greenbelt, Maryland, and Science Applications International Corporation, McLean, Virginia Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 745 EP - 759 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 17 IS - 3 SN - 1525-755X, 1525-755X KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Models and modeling KW - Land surface model KW - Model evaluation/performance KW - Prediction KW - Evapotranspiration estimates KW - Soil Water KW - Maps KW - Data assimilation KW - Soils KW - Modelling KW - North America KW - Evapotranspiration KW - Errors KW - Model Studies KW - Methodology KW - Hydrometeorology KW - Hydrometeorological research KW - Moisture Content KW - Soil moisture KW - Fluctuations KW - AQ 00001:Water Resources and Supplies KW - Q2 09103:Information services KW - SW 0810:General KW - M2 556.13:Evaporation/Evapotranspiration (556.13) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790928435?accountid=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=Benchmarking+NLDAS-2+Soil+Moisture+and+Evapotranspiration+to+Separate+Uncertainty+Contributions&rft.au=Nearing%2C+Grey+S%3BMocko%2C+David+M%3BPeters-Lidard%2C+Christa+D%3BKumar%2C+Sujay+V%3BXia%2C+Youlong&rft.aulast=Nearing&rft.aufirst=Grey&rft.date=2016-03-01&rft.volume=17&rft.issue=3&rft.spage=745&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrometeorology&rft.issn=1525755X&rft_id=info:doi/10.1175%2FJHM-D-15-0063.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Number of references - 50 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Soils; Evapotranspiration; Methodology; Modelling; Hydrometeorological research; Evapotranspiration estimates; Soil moisture; Data assimilation; Hydrometeorology; Prediction; Moisture Content; Soil Water; Maps; Errors; Fluctuations; Model Studies; North America DO - http://dx.doi.org/10.1175/JHM-D-15-0063.1 ER - TY - JOUR T1 - Valence and metal/silicate partitioning of Mo; implications for conditions of Earth accretion and core formation AN - 1789748053; 2016-042482 AB - To better understand and predict the partition coefficient of Mo at the conditions of the deep interior of Earth and other terrestrial planets or bodies, we have undertaken new measurements of the valence and partitioning of Mo. X-ray absorption near edge structure (XANES) K-edge spectra for Mo have been measured in a series of Fe-bearing glasses produced at 1 bar and higher PT conditions. High pressure experiments have been carried out up to 19 GPa in order to better understand the effect of pressure on Mo partitioning. And, finally, a series of experiments at very low fO (sub 2) conditions and high Si content metallic liquids has been carried out to constrain the effect of Si on the partitioning of Mo between metallic liquids and silicate melt. The valence measurements demonstrate that Mo undergoes a transition from 4+ to 6+ near IW-1, in general agreement with previous 1 bar studies on FeO-free silicate melts. High pressure experiments demonstrate a modest pressure dependence of D(Mo) metal/silicate and, combined with previous results, show a significant decrease with pressure that must be quantified in any predictive expression. Finally, the effect of dissolved Si in Fe-rich metallic liquid is to decrease D(Mo) significantly, as suggested by previous work in metallurgical systems. The effect of pressure, temperature, oxygen fugacity, metallic liquid composition, and silicate melt composition can be quantified by using multiple linear regression of available experimental data for Mo. Our XANES results show that Mo will be 4+ at conditions of core formation, so only experiments carried out at fO (sub 2) of IW-1 and lower were used in the regressions. Application of predictive expressions to Earth accretion shows that D(Mo) decreases to values consistent with an equilibrium scenario for early Earth core-mantle. The Mo content of the primitive upper mantle (PUM) can be attained by metal-silicate equilibrium involving S-, C-, and Si-bearing metallic liquid, and peridotite silicate melt along the peridotite liquidus near 45 GPa and 3600 degrees C, late in the accretion process. This conclusion is insensitive to late giant impacts unless the degree of equilibration is very low (<5%). Abstract Copyright (2016) Elsevier, B.V. JF - Earth and Planetary Science Letters AU - Righter, K AU - Danielson, L R AU - Pando, K M AU - Shofner, G A AU - Sutton, S R AU - Newville, M AU - Lee, C T Y1 - 2016/03/01/ PY - 2016 DA - 2016 Mar 01 SP - 89 EP - 100 PB - Elsevier, Amsterdam VL - 437 SN - 0012-821X, 0012-821X KW - silicates KW - interior KW - mass spectra KW - mantle KW - silicon KW - melts KW - electron probe data KW - XANES spectra KW - partitioning KW - molybdenum KW - valency KW - spectra KW - Eh KW - P-T conditions KW - upper mantle KW - experimental studies KW - accretion KW - pressure KW - silicate melts KW - differentiation KW - siderophile elements KW - high pressure KW - X-ray spectra KW - ICP mass spectra KW - metals KW - core KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789748053?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Valence+and+metal%2Fsilicate+partitioning+of+Mo%3B+implications+for+conditions+of+Earth+accretion+and+core+formation&rft.au=Righter%2C+K%3BDanielson%2C+L+R%3BPando%2C+K+M%3BShofner%2C+G+A%3BSutton%2C+S+R%3BNewville%2C+M%3BLee%2C+C+T&rft.aulast=Righter&rft.aufirst=K&rft.date=2016-03-01&rft.volume=437&rft.issue=&rft.spage=89&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2015.12.025 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 76 N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-05-19 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - accretion; core; differentiation; Eh; electron probe data; experimental studies; high pressure; ICP mass spectra; interior; mantle; mass spectra; melts; metals; molybdenum; P-T conditions; partitioning; pressure; siderophile elements; silicate melts; silicates; silicon; spectra; upper mantle; valency; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1016/j.epsl.2015.12.025 ER - TY - JOUR T1 - Climate data initiative; a geocuration effort to support climate resilience AN - 1789747633; 2016-045186 AB - Curation is traditionally defined as the process of collecting and organizing information around a common subject matter or a topic of interest and typically occurs in museums, art galleries, and libraries. The task of organizing data around specific topics or themes is a vibrant and growing effort in the biological sciences but to date this effort has not been actively pursued in the Earth sciences. In this paper, we introduce the concept of geocuration and define it as the act of searching, selecting, and synthesizing Earth science data/metadata and information from across disciplines and repositories into a single, cohesive, and useful collection. We present the Climate Data Initiative (CDI) project as a prototypical example. The CDI project is a systematic effort to manually curate and share openly available climate data from various federal agencies. CDI is a broad multi-agency effort of the U.S. government and seeks to leverage the extensive existing federal climate-relevant data to stimulate innovation and private-sector entrepreneurship to support national climate-change preparedness. We describe the geocuration process used in the CDI project, lessons learned, and suggestions to improve similar geocuration efforts in the future. JF - Computers & Geosciences AU - Ramachandran, Rahul AU - Bugbee, Kaylin AU - Tilmes, Curt AU - Privette, Ana Pinheiro Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 22 EP - 29 PB - Elsevier, Amsterdam VL - 88 SN - 0098-3004, 0098-3004 KW - United States KW - virtual reality KW - public awareness KW - statistical analysis KW - data processing KW - education KW - climate change KW - climate KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789747633?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Climate+data+initiative%3B+a+geocuration+effort+to+support+climate+resilience&rft.au=Ramachandran%2C+Rahul%3BBugbee%2C+Kaylin%3BTilmes%2C+Curt%3BPrivette%2C+Ana+Pinheiro&rft.aulast=Ramachandran&rft.aufirst=Rahul&rft.date=2016-03-01&rft.volume=88&rft.issue=&rft.spage=22&rft.isbn=&rft.btitle=&rft.title=Computers+%26+Geosciences&rft.issn=00983004&rft_id=info:doi/10.1016%2Fj.cageo.2015.12.002 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 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 19 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-05-19 N1 - CODEN - GGEOD5 N1 - SubjectsTermNotLitGenreText - climate; climate change; data processing; education; public awareness; statistical analysis; United States; virtual reality DO - http://dx.doi.org/10.1016/j.cageo.2015.12.002 ER - TY - JOUR T1 - On the Decadal Trend of Global Mean Sea Level and Its Implication on Ocean Heat Content Change AN - 1787971658; PQ0002951905 AB - The variability of the trend of the global mean sea level (GMSL) on decadal scales is of great importance to understanding the long-term evolution of the GMSL. Trend determination is affected by the temporally correlated processes in the record, which have often not been properly accounted for in previous studies. The problem is treated here as one of optimal estimation weighted by the auto-covariance of the time series, which takes into account the various underlying time scales affecting trend estimation. On decadal scales, the estimated standard error of the trend determined from the GMSL record from radar altimetry is about 0.3 mm/yr, which is comparable to the widely quoted 0.4 mm/yr systematic error and cannot be neglected in the error budget. The time scale of the systematic errors is assumed to be much longer than decadal scale, over which the formal error of the trend estimate becomes dominant. The approach is also applied to determining steric sea level from altimeter-measured sea level and ocean mass estimated from the GRACE observations. The estimated trend error of steric sea level, 0.12 mm/yr, suggests that the change of the global ocean heat content over decadal scales can be estimated from space observations to an accuracy on the order of 0.1 W/m2. The difference between the steric sea level, estimated from Argo plus the estimated contribution from the deep ocean, and that from altimeter and GRACE, 0.18 + or - 0.25 mm/yr, provides an estimate of the combined systematic errors of altimetry minus GRACE observations over the 10 year time span of overlapping Argo and GRACE data. JF - Frontiers in Marine Science AU - Fu, Lee-Lueng AD - Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA, llf@jpl.nasa.gov Y1 - 2016/03// PY - 2016 DA - March 2016 PB - Frontiers Research Foundation, P O Box 110 1015 Lausanne Switzerland VL - 3 KW - Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources KW - sea level rise KW - Ocean heat content KW - radar altimetry KW - space gravimetry KW - argo float KW - Marine KW - Mean sea level KW - Altimeters KW - Radar altimetry KW - Steric sea level KW - Altimetry KW - Heat content KW - Q1 08185:Genetics and evolution KW - O 7060:Navigation and Communications KW - Q5 08502:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1787971658?accountid=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=Frontiers+in+Marine+Science&rft.atitle=On+the+Decadal+Trend+of+Global+Mean+Sea+Level+and+Its+Implication+on+Ocean+Heat+Content+Change&rft.au=Fu%2C+Lee-Lueng&rft.aulast=Fu&rft.aufirst=Lee-Lueng&rft.date=2016-03-01&rft.volume=3&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Frontiers+in+Marine+Science&rft.issn=2296-7745&rft_id=info:doi/10.3389%2Ffmars.2016.00037 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Mean sea level; Radar altimetry; Altimeters; Altimetry; Steric sea level; Heat content; Marine DO - http://dx.doi.org/10.3389/fmars.2016.00037 ER - TY - JOUR T1 - Visible and near-infrared (VNIR) reflectance spectroscopy of glassy igneous material; spectral variation, retrieving optical constants and particle sizes by Hapke model AN - 1784736260; 2016-037912 JF - Icarus AU - Carli, C AU - Roush, T L AU - Pedrazzi, G AU - Capaccioni, F Y1 - 2016/03/01/ PY - 2016 DA - 2016 Mar 01 SP - 267 EP - 278 PB - Elsevier, New York, NY VL - 266 SN - 0019-1035, 0019-1035 KW - near-infrared spectra KW - hyperspectral analysis KW - volcanic rocks KW - glasses KW - density KW - asteroids KW - igneous rocks KW - optical spectra KW - iron KW - metamorphic rocks KW - composition KW - Hapke model KW - spectra KW - basaltic composition KW - glass materials KW - synthetic materials KW - impactites KW - grain size KW - planets KW - optical properties KW - metals KW - reflectance KW - regolith KW - refractive index KW - 04:Extraterrestrial geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1784736260?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Visible+and+near-infrared+%28VNIR%29+reflectance+spectroscopy+of+glassy+igneous+material%3B+spectral+variation%2C+retrieving+optical+constants+and+particle+sizes+by+Hapke+model&rft.au=Carli%2C+C%3BRoush%2C+T+L%3BPedrazzi%2C+G%3BCapaccioni%2C+F&rft.aulast=Carli&rft.aufirst=C&rft.date=2016-03-01&rft.volume=266&rft.issue=&rft.spage=267&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.10.032 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 42 N1 - PubXState - NY N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-04-28 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - asteroids; basaltic composition; composition; density; glass materials; glasses; grain size; Hapke model; hyperspectral analysis; igneous rocks; impactites; iron; metals; metamorphic rocks; near-infrared spectra; optical properties; optical spectra; planets; reflectance; refractive index; regolith; spectra; synthetic materials; volcanic rocks DO - http://dx.doi.org/10.1016/j.icarus.2015.10.032 ER - TY - JOUR T1 - Tidal friction in the Earth-Moon system and Laplace planes; Darwin redux AN - 1784736080; 2016-037901 JF - Icarus AU - Rubincam, David Parry Y1 - 2016/03/01/ PY - 2016 DA - 2016 Mar 01 SP - 24 EP - 43 PB - Elsevier, New York, NY VL - 266 SN - 0019-1035, 0019-1035 KW - Moon KW - orbits KW - friction KW - Laplace planes KW - geometry KW - tides KW - models KW - Darwin redux KW - motions KW - Love number KW - Earth-Moon couple KW - resonance KW - dynamics KW - rotation KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1784736080?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Tidal+friction+in+the+Earth-Moon+system+and+Laplace+planes%3B+Darwin+redux&rft.au=Rubincam%2C+David+Parry&rft.aulast=Rubincam&rft.aufirst=David&rft.date=2016-03-01&rft.volume=266&rft.issue=&rft.spage=24&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.10.024 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 49 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-08-18 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - Darwin redux; dynamics; Earth-Moon couple; friction; geometry; Laplace planes; Love number; models; Moon; motions; orbits; resonance; rotation; tides DO - http://dx.doi.org/10.1016/j.icarus.2015.10.024 ER - TY - JOUR T1 - The compositional evolution of C/2012 S1 (ISON) from ground-based high-resolution infrared spectroscopy as part of a worldwide observing campaign AN - 1784735788; 2016-037924 JF - Icarus AU - Dello Russo, N AU - Vervack, R J, Jr AU - Kawakita, H AU - Cochran, A AU - McKay, A J AU - Harris, W M AU - Weaver, H A AU - Lisse, C M AU - DiSanti, M A AU - Kobayashi, H AU - Biver, N AU - Bockelee-Morvan, D AU - Crovisier, J AU - Opitom, C AU - Jehin, E Y1 - 2016/03/01/ PY - 2016 DA - 2016 Mar 01 SP - 152 EP - 172 PB - Elsevier, New York, NY VL - 266 SN - 0019-1035, 0019-1035 KW - water KW - acetylene KW - methane KW - ammonium ion KW - ground-based observations KW - Comet ISON KW - aliphatic hydrocarbons KW - ethane KW - alkanes KW - comae KW - methanol KW - infrared spectra KW - spatial distribution KW - volatiles KW - organic compounds KW - rotation KW - alkynes KW - hydrocarbons KW - composition KW - alcohols KW - hydrogen cyanide KW - spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1784735788?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+compositional+evolution+of+C%2F2012+S1+%28ISON%29+from+ground-based+high-resolution+infrared+spectroscopy+as+part+of+a+worldwide+observing+campaign&rft.au=Dello+Russo%2C+N%3BVervack%2C+R+J%2C+Jr%3BKawakita%2C+H%3BCochran%2C+A%3BMcKay%2C+A+J%3BHarris%2C+W+M%3BWeaver%2C+H+A%3BLisse%2C+C+M%3BDiSanti%2C+M+A%3BKobayashi%2C+H%3BBiver%2C+N%3BBockelee-Morvan%2C+D%3BCrovisier%2C+J%3BOpitom%2C+C%3BJehin%2C+E&rft.aulast=Dello+Russo&rft.aufirst=N&rft.date=2016-03-01&rft.volume=266&rft.issue=&rft.spage=152&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.11.030 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 97 N1 - PubXState - NY N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2016-04-28 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - acetylene; alcohols; aliphatic hydrocarbons; alkanes; alkynes; ammonium ion; comae; Comet ISON; composition; ethane; ground-based observations; hydrocarbons; hydrogen cyanide; infrared spectra; methane; methanol; organic compounds; rotation; spatial distribution; spectra; volatiles; water DO - http://dx.doi.org/10.1016/j.icarus.2015.11.030 ER - TY - JOUR T1 - Recognizing sulfate and phosphate complexes chemisorbed onto nanophase weathering products on Mars using in-situ and remote observations AN - 1780805007; 2016-034535 AB - Orbital and in-situ data from the surface of Mars indicate that nanophase weathering products are important constituents of martian rocks and soils. Nanophase minerals have the capacity to chemisorb anions like sulfate and phosphate onto their surfaces, but it is not known whether chemisorption is an important or even detectable process via orbital and in-situ observations. The detection of chemisorbed sulfate and phosphate anions on nanophase minerals would constrain the speciation of these anions and past aqueous environmental conditions. Here, we synthesized two nanophase weathering products that are common in terrestrial volcanic soils and have been identified on the martian surface: allophane and nanophase ferric oxide as represented by ferrihydrite. We specifically adsorbed sulfate and phosphate separately onto the nanophase mineral surfaces (4.5 and 1.6 wt% SO (sub 4) (super 2-) , and 6.7 and 8.9 wt% PO (sub 4) (super 3-) on allophane and ferrihydrite, respectively) and analyzed the untreated and chemisorbed materials using instruments similar to those on orbital and landed Mars missions (including X-ray diffraction, evolved gas analysis, Moessbauer spectroscopy, and VNIR and thermal-IR spectroscopy). Evolved gas analysis is the optimum method to detect chemisorbed sulfate, with SO (sub 2(g)) being released at >900 degrees C for allophane and 400-800 degrees C for ferrihydrite. Chemisorbed sulfate and phosphate anions affect the thermal-IR spectra of allophane and ferrihydrite in the S-O and P-O stretching region when present in abundances of only a few weight percent; S-O and P-O stretching bands are apparent as short-wavelength shoulders on Si-O stretching bands. Sulfate and phosphate anions chemisorbed to allophane have small but measurable effects on the position of the OH-H (sub 2) O bands at 1.4 and 1.9 mu m in near-IR spectra. Chemisorbed sulfate and phosphate anions did not affect the X-ray diffraction patterns, Moessbauer spectra, and visible/near-IR spectra of ferrihydrite. These data suggest that sulfate chemisorbed onto the surfaces of nanophase minerals can be detected with the Sample Analysis at Mars (SAM) instrument on the Mars science laboratory Curiosity rover, and subtle signatures of chemisorbed sulfate and phosphate may be detectable by IR spectrometers on landed missions. The combined use of SAM, the Chemistry and Mineralogy (CheMin) instrument, and the Alpha Particle X-ray Spectrometer (APXS) on Curiosity allows for the most detailed characterization to date of nanophase minerals in martian rocks and soils and the potential presence of chemisorbed anionic complexes. JF - American Mineralogist AU - Rampe, Elizabeth B AU - Morris, Richard V AU - Archer, P Douglas, Jr AU - Agresti, David G AU - Ming, Douglas W Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 678 EP - 689 PB - Mineralogical Society of America, Washington, DC VL - 101 IS - 3 SN - 0003-004X, 0003-004X KW - silicates KW - near-infrared spectra KW - X-ray diffraction data KW - Mars KW - infrared spectra KW - infrared spectroscopy KW - alpha-ray spectroscopy KW - Curiosity Rover KW - X-ray analysis KW - oxides KW - spectra KW - Mossbauer spectra KW - anions KW - in situ KW - sulfates KW - electron microscopy data KW - phosphates KW - ferrihydrite KW - weathering KW - TEM data KW - clay minerals KW - terrestrial planets KW - planets KW - allophane KW - detection KW - identification KW - X-ray spectroscopy KW - Mars Science Laboratory KW - sheet silicates KW - spectroscopy KW - nanoparticles KW - regolith KW - remote sensing KW - 04:Extraterrestrial geology KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1780805007?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Recognizing+sulfate+and+phosphate+complexes+chemisorbed+onto+nanophase+weathering+products+on+Mars+using+in-situ+and+remote+observations&rft.au=Rampe%2C+Elizabeth+B%3BMorris%2C+Richard+V%3BArcher%2C+P+Douglas%2C+Jr%3BAgresti%2C+David+G%3BMing%2C+Douglas+W&rft.aulast=Rampe&rft.aufirst=Elizabeth&rft.date=2016-03-01&rft.volume=101&rft.issue=3&rft.spage=678&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam-2016-5408CCBYNCND L2 - http://www.minsocam.org/MSA/AmMin/TOC/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 80 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-04-14 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - allophane; alpha-ray spectroscopy; anions; clay minerals; Curiosity Rover; detection; electron microscopy data; ferrihydrite; identification; in situ; infrared spectra; infrared spectroscopy; Mars; Mars Science Laboratory; Mossbauer spectra; nanoparticles; near-infrared spectra; oxides; phosphates; planets; regolith; remote sensing; sheet silicates; silicates; spectra; spectroscopy; sulfates; TEM data; terrestrial planets; weathering; X-ray analysis; X-ray diffraction data; X-ray spectroscopy DO - http://dx.doi.org/10.2138/am-2016-5408CCBYNCND ER - TY - JOUR T1 - Radiative effects of global MODIS cloud regimes AN - 1780523243; PQ0002865232 AB - We update previously published Moderate Resolution Imaging Spectroradiometer (MODIS) global cloud regimes (CRs) using the latest MODIS cloud retrievals in the Collection 6 data set. We implement a slightly different derivation method, investigate the composition of the regimes, and then proceed to examine several aspects of CR radiative appearance with the aid of various radiative flux data sets. Our results clearly show that the CRs are radiatively distinct in terms of shortwave, longwave, and their combined (total) cloud radiative effect. We show that we can clearly distinguish regimes based on whether they radiatively cool or warm the atmosphere, and thanks to radiative heating profiles, to discern the vertical distribution of cooling and warming. Terra and Aqua comparisons provide information about the degree to which morning and afternoon occurrences of regimes affect the symmetry of CR radiative contribution. We examine how the radiative discrepancies among multiple irradiance data sets suffering from imperfect spatiotemporal matching depend on CR and whether they are therefore related to the complexity of cloud structure, its interpretation by different observational systems, and its subsequent representation in radiative transfer calculations. Key Points * Cloud systems can be organized into cloud regimes * The regimes can be identified from passive observations such as MODIS * The regimes have very different radiative effects that can be intercompared JF - Journal of Geophysical Research: Atmospheres AU - Oreopoulos, Lazaros AU - Cho, Nayeong AU - Lee, Dongmin AU - Kato, Seiji AD - Earth Science Division, NASA GSFC, Greenbelt, Maryland, USA. Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 2299 EP - 2317 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 121 IS - 5 SN - 2169-897X, 2169-897X KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Biological surveys KW - Hydrological Regime KW - Vertical distribution KW - Vertical Distribution KW - Atmosphere KW - Cooling KW - Imaging techniques KW - Methodology KW - Clouds KW - Satellite data KW - Cloud structure KW - Radiative transfer calculations KW - MODIS (Moderate Resolution Imaging Spectrometer) KW - Radiative heating KW - Radiative transfer KW - Fluctuations KW - SW 0810:General KW - M2 551.576:Clouds (551.576) KW - Q2 09105:Research programmes and expeditions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1780523243?accountid=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+Geophysical+Research%3A+Atmospheres&rft.atitle=Radiative+effects+of+global+MODIS+cloud+regimes&rft.au=Oreopoulos%2C+Lazaros%3BCho%2C+Nayeong%3BLee%2C+Dongmin%3BKato%2C+Seiji&rft.aulast=Oreopoulos&rft.aufirst=Lazaros&rft.date=2016-03-01&rft.volume=121&rft.issue=5&rft.spage=2299&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2015JD024502 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-04-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Biological surveys; Vertical distribution; Radiative transfer; Imaging techniques; Methodology; Clouds; Satellite data; Cloud structure; Radiative transfer calculations; MODIS (Moderate Resolution Imaging Spectrometer); Radiative heating; Hydrological Regime; Vertical Distribution; Cooling; Atmosphere; Fluctuations DO - http://dx.doi.org/10.1002/2015JD024502 ER - TY - JOUR T1 - Reevaluating suitability estimates based on dynamics of cropland expansion in the Brazilian Amazon AN - 1780141283; 4739662 AB - Agricultural suitability maps are a key input for land use zoning and projections of cropland expansion. Suitability assessments typically consider edaphic conditions, climate, crop characteristics, and sometimes incorporate accessibility to transportation and market infrastructure. However, correct weighting among these disparate factors is challenging, given rapid development of new crop varieties, irrigation, and road networks, as well as changing global demand for agricultural commodities. Here, we compared three independent assessments of cropland suitability to spatial and temporal dynamics of agricultural expansion in the Brazilian state of Mato Grosso during 2001-2012. We found that areas of recent cropland expansion identified using satellite data were generally designated as low to moderate suitability for rainfed crop production. Our analysis highlighted the abrupt nature of suitability boundaries, rather than smooth gradients of agricultural potential, with little additional cropland expansion beyond the extent of the flattest areas (0-2% slope). Satellite-based estimates of the interannual variability in the use of existing crop areas also provided an alternate means to assess suitability. On average, cropland areas in the Cerrado biome had higher utilization (84%) than croplands in the Amazon region of northern Mato Grosso (74%). Areas of more recent expansion had lower utilization than croplands established before 2002, providing empirical evidence for lower suitability or alternative management strategies (e.g., pasture-soya rotations) for lands undergoing more recent land use transitions. This unplanted reserve constitutes a large area of potentially available cropland (PAC) without further expansion, within the management limits imposed for pest management and fallow cycles. Using two key constraints on future cropland expansion, slope and restrictions on further deforestation of Amazon or Cerrado vegetation, we found little available flat land for further legal expansion of crop production in Mato Grosso. Dynamics of cropland expansion from more than a decade of satellite observations indicated narrow ranges of suitability criteria, restricting PAC under current policy conditions, and emphasizing the advantages of field-scale information to assess suitability and utilization. All rights reserved, Elsevier JF - Global environmental change AU - Morton, Douglas C AU - Noojipady, Praveen AU - Macedo, Marcia M AU - Gibbs, Holly AU - Victoria, Daniel C AU - Bolfe, Edson L AD - NASA Goddard Space Flight Center ; University of Maryland ; National Wildlife Federation-National Advocacy Center ; Woods Hole Research Center ; University of Wisconsin ; Brazilian Agricultural Research Corporation Y1 - 2016/03// PY - 2016 DA - March 2016 SP - 92 EP - 101 VL - 37 SN - 0959-3780, 0959-3780 KW - Agricultural economics KW - Land use KW - Crop science KW - Spatial analysis KW - Agricultural production KW - Amazonas Brazil UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1780141283?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aibss&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Global+environmental+change&rft.atitle=Reevaluating+suitability+estimates+based+on+dynamics+of+cropland+expansion+in+the+Brazilian+Amazon&rft.au=Morton%2C+Douglas+C%3BNoojipady%2C+Praveen%3BMacedo%2C+Marcia+M%3BGibbs%2C+Holly%3BVictoria%2C+Daniel+C%3BBolfe%2C+Edson+L&rft.aulast=Morton&rft.aufirst=Douglas&rft.date=2016-03-01&rft.volume=37&rft.issue=&rft.spage=92&rft.isbn=&rft.btitle=&rft.title=Global+environmental+change&rft.issn=09593780&rft_id=info:doi/10.1016%2Fj.gloenvcha.2016.02.001 LA - English DB - International Bibliography of the Social Sciences (IBSS) N1 - Date revised - 2016-04-12 N1 - SuppNotes - Article N1 - Last updated - 2016-04-12 DO - http://dx.doi.org/10.1016/j.gloenvcha.2016.02.001 ER - TY - NEWS T1 - Tropical Fires Fuel Elevated Ozone Levels Over Western Pacific Ocean AN - 1768691731 JF - UPI Space Daily AU - Ellen Gray for NASA Earth Science News Y1 - 2016/02/29/ PY - 2016 DA - 2016 Feb 29 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1768691731?accountid=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=Tropical+Fires+Fuel+Elevated+Ozone+Levels+Over+Western+Pacific+Ocean&rft.au=Ellen+Gray+for+NASA+Earth+Science+News&rft.aulast=Ellen+Gray+for+NASA+Earth+Science+News&rft.aufirst=&rft.date=2016-02-29&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 - 2016-03-02 ER - TY - JOUR T1 - Continuous Intravenous Morphine Infusion for Severe Dyspnea in Terminally Ill Interstitial Pneumonia Patients AN - 1805498205; PQ0002940550 AB - Objective The aims of this study were to evaluate the efficacy and safety of continuous morphine infusion for dyspnea in patients with acute exacerbation (AE) of end-stage interstitial pneumonia (IP). Methods We conducted a retrospective study. Based on the subjective clinical effectiveness ratings of "good," "moderate," "poor," or "unknown," the efficacy of continuous morphine infusion treatment was evaluated as defined as symptom relief that was "good" or "moderate." Patients This study included 22 consecutive opioid-naive patients who received continuous morphine infusion in the palliative treatment of dyspnea resulting from AE-IP. Results Of 22 patients, nine achieved good dyspnea relief, eight had moderate relief, four had a poor response and one response was "unknown" within 24 hours of starting morphine infusion. Using an operational definition of dyspnea relief that was rated "good" or "moderate," the efficacy rate of morphine was 77% (n=17). There was a significant change in the respiratory rate (25 respirations per minute at baseline vs. 17 respirations per minute after 12 hours, p=0.02), however, none of the patients studied had fewer than eight respirations per minute. Conclusion We conclude that continuous morphine infusion is an effective and safe therapy for severe dyspnea in terminal AE-IP patients without any serious adverse events. JF - Internal Medicine (Tokyo, 1992) AU - Takeyasu, Makiko AU - Miyamoto, Atsushi AU - Kato, Daisuke AU - Takahashi, Yui AU - Ogawa, Kazumasa AU - Murase, Kyoko AU - Mochizuki, Sayaka AU - Hanada, Shigeo AU - Uruga, Hironori AU - Takaya, Hisashi AU - Morokawa, Nasa AU - Kishi, Kazuma Y1 - 2016/02/17/ PY - 2016 DA - 2016 Feb 17 SP - 725 EP - 729 PB - Nihon Naika Gakkai VL - 55 IS - 7 SN - 0918-2918, 0918-2918 KW - Toxicology Abstracts KW - interstitial pneumonia KW - morphine KW - acute exacerbation KW - idiopathic pulmonary fibrosis KW - palliative care KW - Morphine KW - Intravenous administration KW - Respiration KW - Dyspnea KW - Pneumonia KW - X 24380:Social Poisons & Drug Abuse UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1805498205?accountid=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=Internal+Medicine+%28Tokyo%2C+1992%29&rft.atitle=Continuous+Intravenous+Morphine+Infusion+for+Severe+Dyspnea+in+Terminally+Ill+Interstitial+Pneumonia+Patients&rft.au=Takeyasu%2C+Makiko%3BMiyamoto%2C+Atsushi%3BKato%2C+Daisuke%3BTakahashi%2C+Yui%3BOgawa%2C+Kazumasa%3BMurase%2C+Kyoko%3BMochizuki%2C+Sayaka%3BHanada%2C+Shigeo%3BUruga%2C+Hironori%3BTakaya%2C+Hisashi%3BMorokawa%2C+Nasa%3BKishi%2C+Kazuma&rft.aulast=Takeyasu&rft.aufirst=Makiko&rft.date=2016-02-17&rft.volume=55&rft.issue=7&rft.spage=725&rft.isbn=&rft.btitle=&rft.title=Internal+Medicine+%28Tokyo%2C+1992%29&rft.issn=09182918&rft_id=info:doi/10.2169%2Finternalmedicine.55.5362 L2 - https://www.jstage.jst.go.jp/article/internalmedicine/55/7/55_55.5362/_article LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-08-17 N1 - SubjectsTermNotLitGenreText - Morphine; Intravenous administration; Respiration; Dyspnea; Pneumonia DO - http://dx.doi.org/10.2169/internalmedicine.55.5362 ER - TY - JOUR T1 - Observational evidence for the convective transport of dust over the Central United States AN - 1789753826; 2016-040195 AB - Bulk aerosol composition and aerosol size distributions measured aboard the DC-8 aircraft during the Deep Convective Clouds and Chemistry Experiment mission in May/June 2012 were used to investigate the transport of mineral dust through nine storms encountered over Colorado and Oklahoma. Measurements made at low altitudes ( 9 km MSL). Storm mean outflow Ca (super 2+) mass concentrations and total coarse (1 mu m 50 mu m) ice particle number concentrations was not evident; thus, the influence of ice shatter on these measurements was assumed small. Mean inflow aerosol number concentrations calculated over a diameter range (0.5 mu m < diameter < 5.0 mu m) relevant for proxy ice nuclei (N (sub PIN) ) were approximately 15-300 times higher than ice particle concentrations for all storms. Ratios of predicted interstitial N (sub PIN) (calculated as the difference between inflow N (sub PIN) and ice particle concentrations) and inflow N (sub PIN) were consistent with those calculated for Ca (super 2+) and V (sub c) and indicated that on average less than 10% of the ingested N (sub PIN) were activated as ice nuclei during anvil formation. Deep convection may therefore represent an efficient transport mechanism for dust to the upper troposphere where these particles can function as ice nuclei cirrus forming in situ. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Atmospheres AU - Corr, C A AU - Ziemba, L D AU - Scheuer, E AU - Anderson, B E AU - Beyersdorf, A J AU - Chen, G AU - Crosbie, E AU - Moore, R H AU - Shook, M AU - Thornhill, K L AU - Winstead, E AU - Lawson, R P AU - Barth, M C AU - Schroeder, J R AU - Blake, D R AU - Dibb, J E Y1 - 2016/02/16/ PY - 2016 DA - 2016 Feb 16 SP - 1306 EP - 1319 PB - Blackwell Wiley for American Geophysical Union, Washington, DC VL - 121 IS - 3 SN - 2169-897X, 2169-897X KW - United States KW - clouds KW - numerical models KW - sediment transport KW - clastic sediments KW - environmental effects KW - lightning KW - mineral composition KW - transport KW - atmospheric transport KW - dust KW - sediments KW - aerosols KW - chemical composition KW - meteorology KW - electrical currents KW - Midwest KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789753826?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Atmospheres&rft.atitle=Observational+evidence+for+the+convective+transport+of+dust+over+the+Central+United+States&rft.au=Corr%2C+C+A%3BZiemba%2C+L+D%3BScheuer%2C+E%3BAnderson%2C+B+E%3BBeyersdorf%2C+A+J%3BChen%2C+G%3BCrosbie%2C+E%3BMoore%2C+R+H%3BShook%2C+M%3BThornhill%2C+K+L%3BWinstead%2C+E%3BLawson%2C+R+P%3BBarth%2C+M+C%3BSchroeder%2C+J+R%3BBlake%2C+D+R%3BDibb%2C+J+E&rft.aulast=Corr&rft.aufirst=C&rft.date=2016-02-16&rft.volume=121&rft.issue=3&rft.spage=1306&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2015JD023789 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-8996 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 40 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2016-05-19 N1 - SubjectsTermNotLitGenreText - aerosols; atmospheric transport; chemical composition; clastic sediments; clouds; dust; electrical currents; environmental effects; lightning; meteorology; Midwest; mineral composition; numerical models; sediment transport; sediments; transport; United States DO - http://dx.doi.org/10.1002/2015JD023789 ER - TY - JOUR T1 - Identification of columnar aerosol types under high aerosol optical depth conditions for a single AERONET site in Korea AN - 1789753332; 2016-040194 AB - Dominant aerosol types were classified using level 2 inversion products for the Anmyon Aerosol Robotic Network (AERONET) site in Korea for the period 1999-2007. The aerosol types were mineral dust (MD), MD mixed with carbon, and black carbon mixed coarse particles (BCCP) for coarse mode aerosols, black carbon (BC), organic carbon (OC), and secondary inorganic ions (SII) for fine mode aerosols, and mixed particles between. The classification was carried out using a clustering method based on parameters, including single scattering albedo (SSA), absorption Angstrom exponent (AAE), and fine mode volume fraction (FMVF). Among the seven aerosol types, MD was distinct, with the highest AAE and a very low FMVF and SII with the highest SSA and FMVF. BCCP was introduced to designate coarse particles mixed with BC, of which the AAE was lower than 1, despite a low FMVF. In addition to a large difference in AAE between BC and OC, the SSA of OC was larger than that of BC, indicating the effects of the white smoke produced from the smoldering phase of biomass burning. Monthly variations of the aerosol types were well interpreted by meteorology and emissions and coincided with those in the previous studies. Applying our results to well-characterized global AERONET sites, we confirmed that the aerosol types at Anmyon were valid at other sites. However, the results also showed that the mean properties for aerosol types were influenced by the specific aerosols prevalent at the study sites. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Atmospheres AU - Choi, Yongjoo AU - Ghim, Young Sung AU - Holben, B N Y1 - 2016/02/16/ PY - 2016 DA - 2016 Feb 16 SP - 1264 EP - 1277 PB - Blackwell Wiley for American Geophysical Union, Washington, DC VL - 121 IS - 3 SN - 2169-897X, 2169-897X KW - monthly variations KW - Far East KW - clastic sediments KW - biomass KW - atmosphere KW - Korea KW - ions KW - environmental analysis KW - fires KW - optical properties KW - transport KW - atmospheric transport KW - carbon KW - dust KW - sediments KW - aerosols KW - organic carbon KW - Asia KW - meteorology KW - South Korea KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789753332?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Atmospheres&rft.atitle=Identification+of+columnar+aerosol+types+under+high+aerosol+optical+depth+conditions+for+a+single+AERONET+site+in+Korea&rft.au=Choi%2C+Yongjoo%3BGhim%2C+Young+Sung%3BHolben%2C+B+N&rft.aulast=Choi&rft.aufirst=Yongjoo&rft.date=2016-02-16&rft.volume=121&rft.issue=3&rft.spage=1264&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2015JD024115 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-8996 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 32 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-05-19 N1 - SubjectsTermNotLitGenreText - aerosols; Asia; atmosphere; atmospheric transport; biomass; carbon; clastic sediments; dust; environmental analysis; Far East; fires; ions; Korea; meteorology; monthly variations; optical properties; organic carbon; sediments; South Korea; transport DO - http://dx.doi.org/10.1002/2015JD024115 ER - TY - NEWS T1 - Practical Advice for Aspiring Space Explorers AN - 1765211483 JF - UPI Space Daily AU - Astronaut Stan Love for NASA News Y1 - 2016/02/16/ PY - 2016 DA - 2016 Feb 16 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765211483?accountid=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=Practical+Advice+for+Aspiring+Space+Explorers&rft.au=Astronaut+Stan+Love+for+NASA+News&rft.aulast=Astronaut+Stan+Love+for+NASA+News&rft.aufirst=&rft.date=2016-02-16&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 - 2016-02-16 ER - TY - JOUR T1 - Identifying the geologic context of Apollo 17 impact melt breccias AN - 1793207273; 2016-046581 AB - The origin of the boulders sampled during the Apollo 17 mission to the Taurus-Littrow Valley has been debated since the completion of the mission four decades ago. No consensus has yet been reached whether the sampled boulders originated in material emplaced as a result of the Serenitatis impact (i.e., massifs), the Imbrium impact (i.e., Sculptured Hills), a combination of both impact events, or as a result of another pre- or post-Serenitatis impact event (i.e., massifs or superposed deposits on valley floor). These on-going debates demonstrate the importance of identifying the geologic context of samples collected during the Apollo missions. Using high-resolution imagery and topography data, we identify boulder tracks that connect sampled boulders with source outcrops. These observations verify astronauts' impressions that boulders originated in outcrops within massif walls and that they remain uncontaminated by nearby Sculptured Hills materials. This finding can be used with updated Ar-Ar and U-Pb ages of analyzed samples to constrain the timing and intensity of the lunar cataclysm epoch. Abstract Copyright (2016) Elsevier, B.V. JF - Earth and Planetary Science Letters AU - Hurwitz, Debra AU - Kring, David A Y1 - 2016/02/15/ PY - 2016 DA - 2016 Feb 15 SP - 64 EP - 70 PB - Elsevier, Amsterdam VL - 436 SN - 0012-821X, 0012-821X KW - imagery KW - boulders KW - breccia KW - impactites KW - Moon KW - Lunar Reconnaissance Orbiter KW - clastic sediments KW - Taurus-Littrow KW - Apollo Program KW - landing sites KW - impact breccia KW - melts KW - Mare Serenitatis KW - Late Heavy Bombardment KW - impact melts KW - topography KW - Mare Imbrium KW - metamorphic rocks KW - sediments KW - LOLA KW - Sculptured Hills KW - regolith KW - Apollo 17 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1793207273?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Identifying+the+geologic+context+of+Apollo+17+impact+melt+breccias&rft.au=Hurwitz%2C+Debra%3BKring%2C+David+A&rft.aulast=Hurwitz&rft.aufirst=Debra&rft.date=2016-02-15&rft.volume=436&rft.issue=&rft.spage=64&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2015.12.032 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 58 N1 - Document feature - illus. N1 - Last updated - 2016-06-02 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - Apollo 17; Apollo Program; boulders; breccia; clastic sediments; imagery; impact breccia; impact melts; impactites; landing sites; Late Heavy Bombardment; LOLA; Lunar Reconnaissance Orbiter; Mare Imbrium; Mare Serenitatis; melts; metamorphic rocks; Moon; regolith; Sculptured Hills; sediments; Taurus-Littrow; topography DO - http://dx.doi.org/10.1016/j.epsl.2015.12.032 ER - TY - JOUR T1 - Alluvial and fluvial fans on Saturn's moon Titan reveal processes, materials and regional geology AN - 1828844702; 2016-088133 AB - Fans, landforms that record the storage and transport of sediment from uplands to depositional basins, are found on Saturn's moon Titan, a body of significantly different process rates and material compositions from Earth. Images obtained by the Cassini spacecraft's synthetic aperture radar reveal morphologies, roughness, textural patterns and other properties consistent with fan analogues on Earth also viewed by synthetic aperture radar. The observed fan characteristics on Titan reveal some regions of high relative relief and others with gentle slopes over hundreds of kilometres, exposing topographic variations and influences on fan formation. There is evidence for a range of particle sizes across proximal to distal fan regions, from c. 2 cm or more to fine-grained, which can provide details on sedimentary processes. Some features are best described as alluvial fans, which implies their proximity to high-relief source areas, while others are more likely to be fluvial fans, drawing from larger catchment areas and frequently characterized by more prolonged runoff events. The presence of fans corroborates the vast liquid storage capacity of the atmosphere and the resultant episodic behaviour. Fans join the growing list of landforms on Titan derived from atmospheric and fluvial processes similar to those on Earth, strengthening comparisons between these two planetary bodies. JF - Special Publication - Geological Society of London AU - Radebaugh, Jani AU - Ventra, Dario AU - Lorenz, Ralph D AU - Farr, Tom AU - Kirk, Randy AU - Hayes, Alex AU - Malaska, Michael J AU - Birch, Sam AU - Liu, Zac Yung-Chun AU - Lunine, Jonathan AU - Barnes, Jason AU - Le Gall, Alice AU - Lopes, Rosaly AU - Stofan, Ellen AU - Wall, Steve AU - Paillou, Philippe Y1 - 2016/02/10/ PY - 2016 DA - 2016 Feb 10 SP - 25 PB - Geological Society of London, London VL - 440 SN - 0305-8719, 0305-8719 KW - icy satellites KW - imagery KW - behavior KW - Mezzoramia KW - playas KW - landforms KW - atmospheric precipitation KW - digital terrain models KW - relief KW - giant planets KW - Saturn KW - size distribution KW - hydrologic cycle KW - Cassini-Huygens Mission KW - topography KW - SAR KW - surface features KW - sedimentology KW - Titan Satellite KW - interplanetary comparison KW - outer planets KW - satellites KW - Leilah Fluctus KW - Earth KW - Shuttle Imaging Radar KW - landform evolution KW - grain size KW - Elivagar Flumina KW - radar methods KW - morphometry KW - properties KW - indicators KW - provenance KW - planets KW - SRTM KW - alluvial fans KW - runoff KW - natural analogs KW - fluvial features KW - terrestrial comparison KW - geomorphology KW - remote sensing KW - 23:Geomorphology KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828844702?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Publication+-+Geological+Society+of+London&rft.atitle=Alluvial+and+fluvial+fans+on+Saturn%27s+moon+Titan+reveal+processes%2C+materials+and+regional+geology&rft.au=Radebaugh%2C+Jani%3BVentra%2C+Dario%3BLorenz%2C+Ralph+D%3BFarr%2C+Tom%3BKirk%2C+Randy%3BHayes%2C+Alex%3BMalaska%2C+Michael+J%3BBirch%2C+Sam%3BLiu%2C+Zac+Yung-Chun%3BLunine%2C+Jonathan%3BBarnes%2C+Jason%3BLe+Gall%2C+Alice%3BLopes%2C+Rosaly%3BStofan%2C+Ellen%3BWall%2C+Steve%3BPaillou%2C+Philippe&rft.aulast=Radebaugh&rft.aufirst=Jani&rft.date=2016-02-10&rft.volume=440&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Special+Publication+-+Geological+Society+of+London&rft.issn=03058719&rft_id=info:doi/10.1144%2FSP440.6 L2 - http://sp.lyellcollection.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from The Geological Society, London, London, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 70 N1 - Document feature - illus. N1 - SuppNotes - Online First N1 - Last updated - 2016-10-25 N1 - CODEN - GSLSBW N1 - SubjectsTermNotLitGenreText - alluvial fans; atmospheric precipitation; behavior; Cassini-Huygens Mission; digital terrain models; Earth; Elivagar Flumina; fluvial features; geomorphology; giant planets; grain size; hydrologic cycle; icy satellites; imagery; indicators; interplanetary comparison; landform evolution; landforms; Leilah Fluctus; Mezzoramia; morphometry; natural analogs; outer planets; planets; playas; properties; provenance; radar methods; relief; remote sensing; runoff; SAR; satellites; Saturn; sedimentology; Shuttle Imaging Radar; size distribution; SRTM; surface features; terrestrial comparison; Titan Satellite; topography DO - http://dx.doi.org/10.1144/SP440.6 ER - TY - JOUR T1 - Spatial and temporal Antarctic ice sheet mass trends, glacio-isostatic adjustment, and surface processes from a joint inversion of satellite altimeter, gravity, and GPS data AN - 1812215905; 2016-068882 AB - We present spatiotemporal mass balance trends for the Antarctic Ice Sheet from a statistical inversion of satellite altimetry, gravimetry, and elastic-corrected GPS data for the period 2003-2013. Our method simultaneously determines annual trends in ice dynamics, surface mass balance anomalies, and a time-invariant solution for glacio-isostatic adjustment while remaining largely independent of forward models. We establish that over the period 2003-2013, Antarctica has been losing mass at a rate of -84 + or - 22 Gt yr (super -1) , with a sustained negative mean trend of dynamic imbalance of -111 + or - 13 Gt yr (super -1) . West Antarctica is the largest contributor with -112 + or - 10 Gt yr (super -1) , mainly triggered by high thinning rates of glaciers draining into the Amundsen Sea Embayment. The Antarctic Peninsula has experienced a dramatic increase in mass loss in the last decade, with a mean rate of -28 + or - 7 Gt yr (super -1) and significantly higher values for the most recent years following the destabilization of the Southern Antarctic Peninsula around 2010. The total mass loss is partly compensated by a significant mass gain of 56 + or - 18 Gt yr (super -1) in East Antarctica due to a positive trend of surface mass balance anomalies. Abstract Copyright (2015), . The Authors. JF - Journal of Geophysical Research: Earth Surface AU - Martin-Espanol, Alba AU - Zammit-Mangion, Andrew AU - Clarke, Peter J AU - Flament, Thomas AU - Helm, Veit AU - King, Matt A AU - Luthcke, Scott B AU - Petrie, Elizabeth AU - Remy, Frederique AU - Schoen, Nana AU - Wouters, Bert AU - Bamber, Jonathan L Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 182 EP - 200 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 2 SN - 2169-9003, 2169-9003 KW - Global Positioning System KW - West Antarctica KW - geophysical surveys KW - GRACE KW - climate change KW - mass KW - isostasy KW - spatial distribution KW - gravity methods KW - melting KW - isostatic rebound KW - mass balance KW - ice KW - algorithms KW - glacial rebound KW - geophysical methods KW - glaciers KW - altimetry KW - satellite methods KW - ice sheets KW - Antarctic ice sheet KW - Antarctica KW - volume KW - surveys KW - temporal distribution KW - glacial geology KW - Amundsen Sea KW - remote sensing KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812215905?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Earth+Surface&rft.atitle=Spatial+and+temporal+Antarctic+ice+sheet+mass+trends%2C+glacio-isostatic+adjustment%2C+and+surface+processes+from+a+joint+inversion+of+satellite+altimeter%2C+gravity%2C+and+GPS+data&rft.au=Martin-Espanol%2C+Alba%3BZammit-Mangion%2C+Andrew%3BClarke%2C+Peter+J%3BFlament%2C+Thomas%3BHelm%2C+Veit%3BKing%2C+Matt+A%3BLuthcke%2C+Scott+B%3BPetrie%2C+Elizabeth%3BRemy%2C+Frederique%3BSchoen%2C+Nana%3BWouters%2C+Bert%3BBamber%2C+Jonathan+L&rft.aulast=Martin-Espanol&rft.aufirst=Alba&rft.date=2016-02-01&rft.volume=121&rft.issue=2&rft.spage=182&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Earth+Surface&rft.issn=21699003&rft_id=info:doi/10.1002%2F2015JF003550 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9011/issues?year=2013 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 65 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2016-08-18 N1 - SubjectsTermNotLitGenreText - algorithms; altimetry; Amundsen Sea; Antarctic ice sheet; Antarctica; climate change; geophysical methods; geophysical surveys; glacial geology; glacial rebound; glaciers; Global Positioning System; GRACE; gravity methods; ice; ice sheets; isostasy; isostatic rebound; mass; mass balance; melting; remote sensing; satellite methods; spatial distribution; surveys; temporal distribution; volume; West Antarctica DO - http://dx.doi.org/10.1002/2015JF003550 ER - TY - JOUR T1 - Support vector machines and generalized linear models for quantifying soil dehydrogenase activity in agro-forestry system of mid altitude central Himalaya AN - 1807509024; 2016-064780 AB - In natural ecosystems, the linkages between inputs of carbon from plants, soil moisture (SM) and microbial activity are central to our understanding of nutrient cycling. Predictions of microbial activities in soil are important as they indicate the potential of the soil to support biochemical processes that are essential for the maintenance of soil fertility as well as productivity. The dehydrogenase activity (DHA) in soil provides information on microbial activities of the soil. However, estimation of DHA activity over complex terrain such as soils of the central Himalaya is not always possible due to very harsh environment and climatic conditions. In this study, the attempts were made to estimate the DHA in the soil of mid altitude central Himalaya using computational intelligence techniques. The linear and non-linear correlation results indicate that the fluctuations in SM and organic carbon (OC) in the root zone affect DHA and can be used as predictors for DHA. Therefore, the performances of support vector machines (SVMs) and generalized linear models (GLMs) were attempted for the prediction of DHA over mid altitude central Himalaya using information of SM and OC. The results showed that the SVM was giving a much better performance than GLM using SM and OC and could be promising and cost effective approach for soil DHA prediction over complex ecosystem. Our results are also of considerable scientific and practical value to the wider scientific community, given the number of practical applications and research studies in which SM and OC datasets are used. Copyright 2016 Springer-Verlag Berlin Heidelberg JF - Environmental Earth Sciences AU - Srivastava, Prashant K AU - Yaduvanshi, Aradhana AU - Singh, Sudhir Kumar AU - Islam, Tanvir AU - Gupta, Manika Y1 - 2016/02// PY - 2016 DA - February 2016 EP - Article 299 PB - Springer, Berlin VL - 75 IS - 4 SN - 1866-6280, 1866-6280 KW - support vector machine KW - Rudraprayag India KW - soil dynamics KW - moisture KW - Garhwal India KW - enzymes KW - dehydrogenase KW - remediation KW - India KW - Indian Peninsula KW - Himalayas KW - Kotma India KW - algorithms KW - Asia KW - uncertainty KW - activity KW - soils KW - forests KW - biodegradation KW - pollutants KW - statistical analysis KW - agriculture KW - soil treatment KW - pollution KW - nutrients KW - models KW - organic compounds KW - proteins KW - regression analysis KW - Uttarakhand India KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807509024?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Earth+Sciences&rft.atitle=Support+vector+machines+and+generalized+linear+models+for+quantifying+soil+dehydrogenase+activity+in+agro-forestry+system+of+mid+altitude+central+Himalaya&rft.au=Srivastava%2C+Prashant+K%3BYaduvanshi%2C+Aradhana%3BSingh%2C+Sudhir+Kumar%3BIslam%2C+Tanvir%3BGupta%2C+Manika&rft.aulast=Srivastava&rft.aufirst=Prashant&rft.date=2016-02-01&rft.volume=75&rft.issue=4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Environmental+Earth+Sciences&rft.issn=18666280&rft_id=info:doi/10.1007%2Fs12665-015-5074-3 L2 - http://www.springerlink.com/content/1866-6280 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 61 N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - activity; agriculture; algorithms; Asia; biodegradation; dehydrogenase; enzymes; forests; Garhwal India; Himalayas; India; Indian Peninsula; Kotma India; microorganisms; models; moisture; nutrients; organic compounds; pollutants; pollution; proteins; regression analysis; remediation; Rudraprayag India; soil dynamics; soil treatment; soils; statistical analysis; support vector machine; uncertainty; Uttarakhand India DO - http://dx.doi.org/10.1007/s12665-015-5074-3 ER - TY - JOUR T1 - Effect of a synchrotron X-ray microtomography imaging experiment on the amino acid content of a CM chondrite AN - 1800397504; 2016-055695 AB - X-ray microcomputed tomography and synchrotron X-ray microcomputed tomography (mu CT) are becoming popular tools for the reconnaissance imaging of chondrites. However, there are occasional concerns that the use of mu CT may be detrimental to organic components of a chondrite. Soluble organic compounds represent approximately 2-10% of the total solvent extractable carbon in CI and CM carbonaceous chondrites and amino acids are among the most abundant compounds in the soluble organic fraction. We irradiated two samples of the Murchison CM2 carbonaceous chondrite under conditions slightly harsher (increased beam exposure time) than those typically used for x-ray mu CT imaging experiments to determine if detectable changes in the amino acid abundance and distribution relative to a nonexposed control sample occurred. After subjecting two meteorite portions to ionizing radiation dosages of 1.1 kiloGray (kGy) and 1.2 kGy with 48.6 and 46.6 keV monochromatic X-rays, respectively, we analyzed the amino acid content of each sample. Within analytical errors, we found no differences in the amino acid abundances or enantiomeric ratios when comparing the control samples (nonexposed Murchison) and the irradiated samples. We show with calculations that any sample heating due to x-ray exposure is negligible. We conclude that a monochromatic synchrotron X-ray mu CT experiment at beamline 13-BM-D of the Advanced Photon Source, which imparts approximately 1 kGy doses, has no detectable effect on the amino acid content of a carbonaceous chondrite. These results are important for the initial reconnaissance of returned samples from the OSIRIS-REx and Hayabusa 2 asteroid sample return missions. Abstract Copyright The Meteoritical Society, 2016. JF - Meteoritics & Planetary Science AU - Friedrich, Jon M AU - Glavin, Daniel P AU - Rivers, Mark L AU - Dworkin, Jason P Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 429 EP - 437 PB - Meteoritical Society, Fayetteville, AR VL - 51 IS - 2 SN - 1086-9379, 1086-9379 KW - tomography KW - methods KW - experimental studies KW - irradiation KW - stony meteorites KW - liquid chromatograms KW - radiation damage KW - mass spectra KW - carbonaceous chondrites KW - Murchison Meteorite KW - synchrotron radiation KW - meteorites KW - organic compounds KW - organic acids KW - X-ray data KW - computed tomography KW - fluorescence KW - chromatograms KW - amino acids KW - spectra KW - CM chondrites KW - chondrites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800397504?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Effect+of+a+synchrotron+X-ray+microtomography+imaging+experiment+on+the+amino+acid+content+of+a+CM+chondrite&rft.au=Friedrich%2C+Jon+M%3BGlavin%2C+Daniel+P%3BRivers%2C+Mark+L%3BDworkin%2C+Jason+P&rft.aulast=Friedrich&rft.aufirst=Jon&rft.date=2016-02-01&rft.volume=51&rft.issue=2&rft.spage=429&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12595 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 27 N1 - PubXState - AR N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2016-06-30 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - amino acids; carbonaceous chondrites; chondrites; chromatograms; CM chondrites; computed tomography; experimental studies; fluorescence; irradiation; liquid chromatograms; mass spectra; meteorites; methods; Murchison Meteorite; organic acids; organic compounds; radiation damage; spectra; stony meteorites; synchrotron radiation; tomography; X-ray data DO - http://dx.doi.org/10.1111/maps.12595 ER - TY - JOUR T1 - Space weathering of silicates simulated by successive laser irradiation; in situ reflectance measurements of Fo (sub 90) , Fo (sub 99+) , and SiO (sub 2) AN - 1800397362; 2016-055687 AB - Pulsed-laser irradiation causes the visible-near-infrared spectral slope of olivine (Fo (sub 90) and Fo (sub 99+) ) and SiO (sub 2) to increase (redden), while the olivine samples darken and the SiO (sub 2) samples brighten slightly. XPS analysis shows that irradiation of Fo (sub 90) produces metallic Fe. Analytical SEM and TEM measurements confirm that reddening in the Fo (sub 90) olivine samples correlates with the production of "nanophase" metallic Fe (npFe (super 0) ) grains, 20-50 nm in size. The reddening observed in the SiO (sub 2) sample is consistent with the formation of SiO or other SiO (sub x) species that absorb in the visible. The weak spectral brightening induced by laser irradiation of SiO (sub 2) is consistent with a change in surface topography of the sample. The darkening observed in the olivine samples is likely caused by the formation of larger npFe (super 0) particles, such as the 100-400 nm diameter npFe (super 0) identified during our TEM analysis of Fo (sub 90) samples. The Fo (sub 90) reflectance spectra are qualitatively similar to those in previous experiments suggesting that in all cases formation of npFe (super 0) is causing the spectral alteration. Finally, we find that the accumulation of successive laser pulses cause continued sample darkening in the Vis-NIR, which suggests that repeated surface impacts are an efficient way to darken airless body surfaces. Abstract Copyright Published 2016. This article is a U.S. Government work and is in the public domain in the USA. JF - Meteoritics & Planetary Science AU - Loeffler, Mark J AU - Dukes, C A AU - Christoffersen, R AU - Baragiola, R A Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 261 EP - 275 PB - Meteoritical Society, Fayetteville, AR VL - 51 IS - 2 SN - 1086-9379, 1086-9379 KW - silicates KW - near-infrared spectra KW - irradiation KW - laser methods KW - asteroids KW - optical spectra KW - olivine group KW - simulation KW - iron KW - meteorites KW - olivine KW - orthosilicates KW - ultraviolet spectra KW - spectra KW - X-ray photoelectron spectra KW - experimental studies KW - electron microscopy data KW - impacts KW - weathering KW - TEM data KW - forsterite KW - nesosilicates KW - micrometeorites KW - space weathering KW - metals KW - nanophase iron KW - reflectance KW - SEM data KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800397362?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+weathering+of+silicates+simulated+by+successive+laser+irradiation%3B+in+situ+reflectance+measurements+of+Fo+%28sub+90%29+%2C+Fo+%28sub+99%2B%29+%2C+and+SiO+%28sub+2%29&rft.au=Loeffler%2C+Mark+J%3BDukes%2C+C+A%3BChristoffersen%2C+R%3BBaragiola%2C+R+A&rft.aulast=Loeffler&rft.aufirst=Mark&rft.date=2016-02-01&rft.volume=51&rft.issue=2&rft.spage=261&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12581 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 61 N1 - PubXState - AR N1 - Last updated - 2016-06-30 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - asteroids; electron microscopy data; experimental studies; forsterite; impacts; iron; irradiation; laser methods; metals; meteorites; micrometeorites; nanophase iron; near-infrared spectra; nesosilicates; olivine; olivine group; optical spectra; orthosilicates; reflectance; regolith; SEM data; silicates; simulation; space weathering; spectra; TEM data; ultraviolet spectra; weathering; X-ray photoelectron spectra DO - http://dx.doi.org/10.1111/maps.12581 ER - TY - JOUR T1 - Investigating potential sources of Mercury's exospheric calcium; photon-stimulated desorption of calcium sulfide AN - 1800392421; 2016-056370 AB - Ground-based and MErcury Surface, Space ENvironment, GEochemistry, and Ranging observations detected Ca (super 0) and Ca (super +) in the exosphere of Mercury as well as unexpectedly high levels of sulfur on Mercury's surface. The mineral oldhamite ((Mg,Ca)S) could be a predominant component of the Mercury surface, particularly within the hollows identified within craters, and could therefore serve as a source of the observed exospheric calcium. Laboratory measurements on the photon-stimulated desorption (PSD) of CaS powder (an analog for oldhamite) at a wavelength of lambda = 355 nm have been conducted, utilizing resonance-enhanced multiphoton ionization time-of-flight mass spectrometry to determine the yields and velocity distributions of Ca (super 0) . The desorbing Ca (super 0) could be fit using two Maxwell-Boltzmann components: a 600 (+ or -30) K thermal component and a 1389 (+ or -121) K nonthermal component, the latter accounting for approximately 25% of the observed signal. Cross sections for PSD using 3.4 eV photons were found to be 1.1 (+ or -0.7) X 10 (super -20) cm (super 2) for Ca (super 0) and 3.2 (+ or -0.9) X 10 (super -24) cm (super 2) for Ca (super +) . Adopting these cross sections, a Monte Carlo model of the release of Ca (super 0) by PSD from the Tyagaraja crater finds the neutral microexosphere created from this process to be substantial even if only 1% CaS is assumed in the hollows. Diffuse reflectance UV-visible measurements were made on the CaS powder to determine a bandgap, E (sub g) , of 2.81 (+ or -0.14) eV via the Tauc method. Abstract Copyright (2016), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - Bennett, Chris J AU - McLain, Jason L AU - Sarantos, Menelaos AU - Gann, Reuben D AU - DeSimone, Alice AU - Orlando, Thomas M Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 137 EP - 146 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 2 SN - 2169-9097, 2169-9097 KW - calcium KW - alkaline earth metals KW - experimental studies KW - desorption KW - numerical models KW - Monte Carlo analysis KW - statistical analysis KW - Tyagaraja Crater KW - mass spectra KW - cosmochemistry KW - calcium sulfide KW - oldhamite KW - terrestrial planets KW - planets KW - laboratory studies KW - metals KW - Mercury Planet KW - Maxwell-Boltzmann statistics KW - spectra KW - sulfides KW - geochemistry KW - 04:Extraterrestrial geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800392421?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Planets&rft.atitle=Investigating+potential+sources+of+Mercury%27s+exospheric+calcium%3B+photon-stimulated+desorption+of+calcium+sulfide&rft.au=Bennett%2C+Chris+J%3BMcLain%2C+Jason+L%3BSarantos%2C+Menelaos%3BGann%2C+Reuben+D%3BDeSimone%2C+Alice%3BOrlando%2C+Thomas+M&rft.aulast=Bennett&rft.aufirst=Chris&rft.date=2016-02-01&rft.volume=121&rft.issue=2&rft.spage=137&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2015JE004966 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 65 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-06-30 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; calcium; calcium sulfide; cosmochemistry; desorption; experimental studies; geochemistry; laboratory studies; mass spectra; Maxwell-Boltzmann statistics; Mercury Planet; metals; Monte Carlo analysis; numerical models; oldhamite; planets; spectra; statistical analysis; sulfides; terrestrial planets; Tyagaraja Crater DO - http://dx.doi.org/10.1002/2015JE004966 ER - TY - JOUR T1 - Nature Geoscience AN - 1797543551; 2016-053963 JF - Nature Geoscience AU - Cooper, B L AU - Thaisen, K AU - Chang, B C AU - Lee, T S AU - McKay, D S Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 87 PB - Nature Publishing Group, London VL - 9 IS - 2 SN - 1752-0894, 1752-0894 KW - laboratory studies KW - lunar samples KW - experimental studies KW - mineral composition KW - laser methods KW - Moon KW - terrestrial comparison KW - measurement KW - lunar soils KW - diffraction KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1797543551?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Nature+Geoscience&rft.au=Cooper%2C+B+L%3BThaisen%2C+K%3BChang%2C+B+C%3BLee%2C+T+S%3BMcKay%2C+D+S&rft.aulast=Cooper&rft.aufirst=B&rft.date=2016-02-01&rft.volume=9&rft.issue=2&rft.spage=87&rft.isbn=&rft.btitle=&rft.title=Nature+Geoscience&rft.issn=17520894&rft_id=info:doi/10.1038%2Fngeo2645 L2 - http://www.nature.com/ngeo/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 2 N1 - SuppNotes - For reference to original see Cooper, B. L., et al., Nature Geoscience, Vol. 8, p. 657-658, 2015; for reference to discussion see Taylor, L. A., Liu, Y., and Lofgren, G., Nature Geoscience, Vol. 9, p. 87, 2016 N1 - Last updated - 2016-06-17 N1 - SubjectsTermNotLitGenreText - diffraction; experimental studies; laboratory studies; laser methods; lunar samples; lunar soils; measurement; mineral composition; Moon; terrestrial comparison DO - http://dx.doi.org/10.1038/ngeo2645 ER - TY - JOUR T1 - Sulfur and metal fertilization of the lower continental crust AN - 1793203330; 2016-049461 AB - Mantle-derived melts and metasomatic fluids are considered to be important in the transport and distribution of trace elements in the subcontinental lithospheric mantle. However, the mechanisms that facilitate sulfur and metal transfer from the upper mantle into the lower continental crust are poorly constrained. This study addresses this knowledge gap by examining a series of sulfide- and hydrous mineral-rich alkaline mafic-ultramafic pipes that intruded the lower continental crust of the Ivrea-Verbano Zone in the Italian Western Alps. The pipes are relatively small (< 300 m diameter) and primarily composed of a matrix of subhedral to anhedral amphibole (pargasite), phlogopite and orthopyroxene that enclose sub-centimeter-sized grains of olivine. The 1 to 5 m wide rim portions of the pipes locally contain significant blebby and disseminated Fe-Ni-Cu-PGE sulfide mineralization. Stratigraphic relationships, mineral chemistry, geochemical modeling and phase equilibria suggest that the pipes represent open-ended conduits within a large magmatic plumbing system. The earliest formed pipe rocks were olivine-rich cumulates that reacted with hydrous melts to produce orthopyroxene, amphibole and phlogopite. Sulfides precipitated as immiscible liquid droplets that were retained within a matrix of silicate crystals and scavenged metals from the percolating hydrous melt. New high-precision chemical abrasion TIMS U-Pb dating of zircons from one of the pipes indicates that these pipes were emplaced at 249.1 + or - 0.2 Ma, following partial melting of lithospheric mantle pods that were metasomatized during the Eo-Variscan oceanic to continental subduction ( approximately 420-310 Ma). The thermal energy required to generate partial melting of the metasomatized mantle was most likely derived from crustal extension, lithospheric decompression and subsequent asthenospheric rise during the orogenic collapse of the Variscan belt (< 300 Ma). Unlike previous models, outcomes from this study suggest a significant temporal gap between the occurrence of mantle metasomatism, subsequent partial melting and emplacement of the pipes. We argue that this multi-stage process is a very effective mechanism to fertilize the commonly dry and refractory lower continental crust in metals and volatiles. During the four-dimensional evolution of the thermo-tectonic architecture of any given terrain, metals and volatiles stored in the lower continental crust may become available as sources for subsequent ore-forming processes, thus enhancing the prospectivity of continental block margins for a wide range of mineral systems. JF - Lithos (Oslo) AU - Locmelis, Marek AU - Fiorentini, Marco L AU - Rushmer, Tracy AU - Arevalo, Ricardo, Jr AU - Adam, John AU - Denyszyn, Steven W Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 74 EP - 93 PB - Elsevier, Amsterdam VL - 244 SN - 0024-4937, 0024-4937 KW - silicates KW - mineral exploration KW - U/Pb KW - mass spectra KW - Europe KW - continental crust KW - Italy KW - Southern Europe KW - plutonic rocks KW - mineral composition KW - Lombardy Italy KW - Central Europe KW - metamorphic rocks KW - orthosilicates KW - absolute age KW - lower crust KW - zircon group KW - textures KW - Paleozoic KW - magmatism KW - basement KW - zircon KW - Ivrea-Verbano Zone KW - ultramafics KW - Piemonte Italy KW - orogeny KW - Upper Permian KW - intrusions KW - plate tectonics KW - peridotites KW - metal ores KW - Balmuccua Italy KW - crust KW - mineral deposits, genesis KW - ion probe data KW - igneous rocks KW - Alps KW - Variscan Orogeny KW - partial melting KW - granulites KW - metasomatism KW - extension tectonics KW - Switzerland KW - metallogeny KW - major elements KW - dates KW - lamproite KW - tectonics KW - spectra KW - trace elements KW - mass transfer KW - chemical composition KW - subduction KW - pipes KW - Permian KW - emplacement KW - kinzigite KW - nesosilicates KW - volatiles KW - metals KW - sulfur KW - sulfides KW - 05A:Igneous and metamorphic petrology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1793203330?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Lithos+%28Oslo%29&rft.atitle=Sulfur+and+metal+fertilization+of+the+lower+continental+crust&rft.au=Locmelis%2C+Marek%3BFiorentini%2C+Marco+L%3BRushmer%2C+Tracy%3BArevalo%2C+Ricardo%2C+Jr%3BAdam%2C+John%3BDenyszyn%2C+Steven+W&rft.aulast=Locmelis&rft.aufirst=Marek&rft.date=2016-02-01&rft.volume=244&rft.issue=&rft.spage=74&rft.isbn=&rft.btitle=&rft.title=Lithos+%28Oslo%29&rft.issn=00244937&rft_id=info:doi/10.1016%2Fj.lithos.2015.11.028 L2 - http://www.sciencedirect.com/science/journal/00244937 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 126 N1 - Document feature - illus. incl. 4 tables, geol. sketch map N1 - Last updated - 2016-06-02 N1 - CODEN - LITHAN N1 - SubjectsTermNotLitGenreText - absolute age; Alps; Balmuccua Italy; basement; Central Europe; chemical composition; continental crust; crust; dates; emplacement; Europe; extension tectonics; granulites; igneous rocks; intrusions; ion probe data; Italy; Ivrea-Verbano Zone; kinzigite; lamproite; Lombardy Italy; lower crust; magmatism; major elements; mass spectra; mass transfer; metal ores; metallogeny; metals; metamorphic rocks; metasomatism; mineral composition; mineral deposits, genesis; mineral exploration; nesosilicates; orogeny; orthosilicates; Paleozoic; partial melting; peridotites; Permian; Piemonte Italy; pipes; plate tectonics; plutonic rocks; silicates; Southern Europe; spectra; subduction; sulfides; sulfur; Switzerland; tectonics; textures; trace elements; U/Pb; ultramafics; Upper Permian; Variscan Orogeny; volatiles; zircon; zircon group DO - http://dx.doi.org/10.1016/j.lithos.2015.11.028 ER - TY - JOUR T1 - Global Assimilation of Multiangle and Multipolarization SMOS Brightness Temperature Observations into the GEOS-5 Catchment Land Surface Model for Soil Moisture Estimation AN - 1790971781; PQ0003081561 AB - Multiangle and multipolarization L-band microwave observations from the Soil Moisture Ocean Salinity (SMOS) mission are assimilated into the Goddard Earth Observing System Model, version 5 (GEOS-5), using a spatially distributed ensemble Kalman filter. A variant of this system is also used for the Soil Moisture Active Passive (SMAP) Level 4 soil moisture product. The assimilation involves a forward simulation of brightness temperatures (Tb) for various incidence angles and polarizations and an inversion of the differences between Tb forecasts and observations into updates to modeled surface and root-zone soil moisture, as well as surface soil temperature. With SMOS Tb assimilation, the unbiased root-mean-square difference between simulations and gridcell-scale in situ measurements in a few U.S. watersheds during the period from 1 July 2010 to 1 July 2014 is 0.034 m super(3) m super(-3) for both surface and root-zone soil moisture. A validation against gridcell-scale measurements and point-scale measurements from sparse networks in the United States, Australia, and Europe demonstrates that the assimilation improves both surface and root-zone soil moisture results over the open-loop (no assimilation) estimates in areas with limited vegetation and terrain complexity. At the global scale, the assimilation of SMOS Tb introduces mean absolute increments of 0.004 m super(3) m super(-3) to the profile soil moisture content and 0.7 K to the surface soil temperature. The updates induce changes to energy fluxes and runoff amounting to about 15% of their respective temporal standard deviation. JF - Journal of Hydrometeorology AU - M De Lannoy, Gabrieelle J AU - Reichle, Rolf H AD - NASA Goddard Space Flight Center, Greenbelt, and Universities Space Research Association, Columbia, Maryland Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 669 EP - 691 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 17 IS - 2 SN - 1525-755X, 1525-755X KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Catchment area KW - Meteorological data KW - Ecological distribution KW - Soil Water KW - Watersheds KW - Data assimilation KW - Surface radiation temperature KW - Microwaves KW - Catchment basins KW - ANE, Europe KW - Soils KW - Networks KW - Australia KW - Soil moisture content KW - Modelling KW - Soil temperatures KW - Soil Temperature KW - Temperature KW - Kalman filter KW - Vegetation KW - Soil moisture estimation KW - Polarization KW - Inversions KW - Model Studies KW - Hydrometeorology KW - USA KW - Hydrometeorological research KW - Numerical simulations KW - Moisture Content KW - Brightness temperature KW - Soil moisture KW - Runoff KW - Oceanographic data KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General KW - Q2 09171:Dynamics of lakes and rivers KW - M2 556.16:Runoff (556.16) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790971781?accountid=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=Global+Assimilation+of+Multiangle+and+Multipolarization+SMOS+Brightness+Temperature+Observations+into+the+GEOS-5+Catchment+Land+Surface+Model+for+Soil+Moisture+Estimation&rft.au=M+De+Lannoy%2C+Gabrieelle+J%3BReichle%2C+Rolf+H&rft.aulast=M+De+Lannoy&rft.aufirst=Gabrieelle&rft.date=2016-02-01&rft.volume=17&rft.issue=2&rft.spage=669&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrometeorology&rft.issn=1525755X&rft_id=info:doi/10.1175%2FJHM-D-15-0037.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Number of references - 71 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Catchment area; Microwaves; Ecological distribution; Soils; Watersheds; Inversions; Runoff; Surface radiation temperature; Modelling; Meteorological data; Soil temperatures; Kalman filter; Polarization; Soil moisture estimation; Data assimilation; Hydrometeorological research; Numerical simulations; Catchment basins; Brightness temperature; Soil moisture content; Soil moisture; Oceanographic data; Hydrometeorology; Soil Temperature; Networks; Temperature; Vegetation; Moisture Content; Soil Water; Model Studies; USA; ANE, Europe; Australia DO - http://dx.doi.org/10.1175/JHM-D-15-0037.1 ER - TY - JOUR T1 - Performance Metrics, Error Modeling, and Uncertainty Quantification AN - 1790970665; PQ0003081676 AB - A common set of statistical metrics has been used to summarize the performance of models or measurements-the most widely used ones being bias, mean square error, and linear correlation coefficient. They assume linear, additive, Gaussian errors, and they are interdependent, incomplete, and incapable of directly quantifying uncertainty. The authors demonstrate that these metrics can be directly derived from the parameters of the simple linear error model. Since a correct error model captures the full error information, it is argued that the specification of a parametric error model should be an alternative to the metrics-based approach. The error-modeling methodology is applicable to both linear and nonlinear errors, while the metrics are only meaningful for linear errors. In addition, the error model expresses the error structure more naturally, and directly quantifies uncertainty. This argument is further explained by highlighting the intrinsic connections between the performance metrics, the error model, and the joint distribution between the data and the reference. JF - Monthly Weather Review AU - Tian, Yudong AU - Nearing, Grey S AU - Peters-Lidard, Christa D AU - Harrison, Kenneth W AU - Tang, Ling AD - Hydrological Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, and Earth System Science Interdisciplinary Center, University of Maryland, College Park, College Park, Maryland Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 607 EP - 613 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 144 IS - 2 SN - 0027-0644, 0027-0644 KW - Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Mathematical and statistical techniques KW - Error analysis KW - Forecasting KW - Forecast verification/skill KW - Models and modeling KW - Model errors KW - Model evaluation/performance KW - Weather KW - Correlation Coefficient KW - Reviews KW - Statistical analysis KW - Correlations KW - Errors KW - Specifications KW - Additives KW - Model Studies KW - Modelling KW - Q2 09103:Information services KW - SW 0810:General KW - M2 551.5:General (551.5) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790970665?accountid=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=Monthly+Weather+Review&rft.atitle=Performance+Metrics%2C+Error+Modeling%2C+and+Uncertainty+Quantification&rft.au=Tian%2C+Yudong%3BNearing%2C+Grey+S%3BPeters-Lidard%2C+Christa+D%3BHarrison%2C+Kenneth+W%3BTang%2C+Ling&rft.aulast=Tian&rft.aufirst=Yudong&rft.date=2016-02-01&rft.volume=144&rft.issue=2&rft.spage=607&rft.isbn=&rft.btitle=&rft.title=Monthly+Weather+Review&rft.issn=00270644&rft_id=info:doi/10.1175%2FMWR-D-15-0087.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Number of references - 28 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Modelling; Correlations; Statistical analysis; Weather; Correlation Coefficient; Reviews; Errors; Additives; Specifications; Model Studies DO - http://dx.doi.org/10.1175/MWR-D-15-0087.1 ER - TY - JOUR T1 - Extreme Water Deficit in Brazil Detected from Space AN - 1790969268; PQ0003081569 AB - Extreme droughts have caused significant socioeconomic and environmental damage worldwide. In Brazil, ineffective energy development and water management policies have magnified the impacts of recent severe droughts, which include massive agricultural losses, water supply restrictions, and energy rationing. Spaceborne remote sensing data advance our understanding of the spatiotemporal variability of large-scale droughts and enhance the detection and monitoring of extreme water-related events. In this study, data derived from the Gravity Recovery and Climate Experiment (GRACE) mission are used to detect and quantify an extended major drought over eastern Brazil and provide estimates of impacted areas and region-specific water deficits. Two structural breakpoint detection methods were applied to time series of GRACE-based terrestrial water storage anomalies (TWSA), determining when two abrupt changes occurred. One, in particular, defines the beginning of the current drought. Using TWSA, a water loss rate of -6.1 cm yr super(-1) over southeastern Brazil was detected from 2012 to 2015. Based on analysis of Global Land Data Assimilation System (GLDAS) outputs, the extreme drought is mostly related to lower-than-usual precipitation rates, resulting in high soil moisture depletion and lower-than-usual rates of evapotranspiration. A reduction of 20%-23% of precipitation over an extended period of 3 years is enough to raise serious water scarcity conditions in the country. Correlations between monthly time series of both grid-based TWSA and ground-based water storage measurements at 16 reservoirs located within southeastern Brazil varied from 0.42 to 0.82. Differences are mainly explained by reservoir sizes and proximity to the drought nucleus. JF - Journal of Hydrometeorology AU - Getirana, Augusto AD - Hydrological Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, and Earth System Science Interdisciplinary Center, University of Maryland, College Park, College Park, Maryland Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 591 EP - 599 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 17 IS - 2 SN - 1525-755X, 1525-755X KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Geographic location/entity KW - South America KW - Atm/Ocean Structure/ Phenomena KW - Drought KW - Extreme events KW - Physical Meteorology and Climatology KW - Hydrology KW - Observational techniques and algorithms KW - Remote sensing KW - Water deficit KW - Water Management KW - Water reservoirs KW - Water Supply KW - Correlations KW - Time series analysis KW - Data assimilation KW - Soils KW - ASW, Brazil KW - Reservoirs KW - Droughts KW - Atmospheric precipitations KW - Water Deficit KW - Policies KW - Water Scarcity KW - Climates KW - Water storage KW - Evapotranspiration KW - Precipitation KW - Water supply KW - Hydrometeorology KW - Hydrometeorological research KW - Water management KW - Water Storage KW - Soil moisture KW - AQ 00001:Water Resources and Supplies KW - Q2 09171:Dynamics of lakes and rivers KW - SW 4020:Evaluation process KW - M2 556.13:Evaporation/Evapotranspiration (556.13) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790969268?accountid=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=Extreme+Water+Deficit+in+Brazil+Detected+from+Space&rft.au=Getirana%2C+Augusto&rft.aulast=Getirana&rft.aufirst=Augusto&rft.date=2016-02-01&rft.volume=17&rft.issue=2&rft.spage=591&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrometeorology&rft.issn=1525755X&rft_id=info:doi/10.1175%2FJHM-D-15-0096.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Number of references - 45 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Atmospheric precipitations; Policies; Water reservoirs; Water management; Soils; Remote sensing; Evapotranspiration; Droughts; Water supply; Water deficit; Water storage; Correlations; Drought; Precipitation; Time series analysis; Data assimilation; Hydrometeorological research; Soil moisture; Reservoirs; Hydrometeorology; Water Deficit; Water Management; Water Scarcity; Climates; Water Supply; Water Storage; ASW, Brazil DO - http://dx.doi.org/10.1175/JHM-D-15-0096.1 ER - TY - JOUR T1 - New Statistical Model for Variability of Aerosol Optical Thickness: Theory and Application to MODIS Data over Ocean* AN - 1790968135; PQ0003081350 AB - A novel model for the variability in aerosol optical thickness (AOT) is presented. This model is based on the consideration of AOT fields as realizations of a stochastic process that is the exponent of an underlying Gaussian process with a specific autocorrelation function. In this approach, AOT fields have lognormal PDFs and structure functions with the correct asymptotic behavior at large scales. The latter is an advantage compared with fractal (scale invariant) approaches. The simple analytical form of the structure function in the proposed model facilitates its use for the parameterization of AOT statistics derived from remote sensing data. The new approach is illustrated using a 1-yr-long global MODIS AOT dataset (over ocean) with 10-km resolution. It was used to compute AOT statistics for sample cells forming a grid with 5 degree spacing. The observed shapes of the structure functions indicated that, in a large number of cases, the AOT variability is split into two regimes that exhibit different patterns of behavior: small-scale stationary processes and trends reflecting variations at larger scales. The small-scale patterns are suggested to be generated by local aerosols within the marine boundary layer, while the large-scale trends are indicative of elevated aerosols transported from remote continental sources. This assumption is evaluated by comparison of the geographical distributions of these patterns derived from MODIS data with those obtained from the GISS GCM. This study shows considerable potential to enhance comparisons between remote sensing datasets and climate models beyond regional mean AOTs. JF - Journal of the Atmospheric Sciences AU - Alexandrov, Mikhail D AU - Geogdzhayev, Igor V AU - Tsigaridis, Kostas AU - Marshak, Alexander AU - Levy, Robert AU - Cairns, Brian AD - Department of Applied Physics and Applied Mathematics, Columbia University, and NASA Goddard Institute for Space Studies, New York, New York Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 821 EP - 837 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 73 IS - 2 SN - 0022-4928, 0022-4928 KW - Water Resources Abstracts; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Physical Meteorology and Climatology KW - Aerosols KW - Observational techniques and algorithms KW - Satellite observations KW - Mathematical and statistical techniques KW - Statistical techniques KW - Models and modeling KW - Climate models KW - Remote Sensing KW - Variability KW - Geographical distribution KW - Statistics KW - Statistical analysis KW - Remote sensing KW - Stochastic processes KW - Autocorrelation KW - Ocean-atmosphere system KW - MODIS (Moderate Resolution Imaging Spectrometer) KW - Modelling KW - Marine KW - Autocorrelation function KW - Climates KW - Statistical models KW - Optical thickness of aerosols KW - Atmospheric circulation KW - Model Studies KW - Satellite data KW - Behavior KW - Marine atmospheric boundary layer KW - Oceans KW - General circulation models KW - O 6060:Coastal Zone Resources and Management KW - SW 0810:General KW - M2 551.581:Latitudinal Influences (551.581) KW - Q2 09182:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790968135?accountid=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+the+Atmospheric+Sciences&rft.atitle=New+Statistical+Model+for+Variability+of+Aerosol+Optical+Thickness%3A+Theory+and+Application+to+MODIS+Data+over+Ocean*&rft.au=Alexandrov%2C+Mikhail+D%3BGeogdzhayev%2C+Igor+V%3BTsigaridis%2C+Kostas%3BMarshak%2C+Alexander%3BLevy%2C+Robert%3BCairns%2C+Brian&rft.aulast=Alexandrov&rft.aufirst=Mikhail&rft.date=2016-02-01&rft.volume=73&rft.issue=2&rft.spage=821&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Atmospheric+Sciences&rft.issn=00224928&rft_id=info:doi/10.1175%2FJAS-D-15-0130.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Number of references - 38 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Stochastic processes; Geographical distribution; Autocorrelation; Aerosols; Statistical models; Ocean-atmosphere system; Remote sensing; Atmospheric circulation; Modelling; Satellite data; Climate models; Marine atmospheric boundary layer; Autocorrelation function; General circulation models; Statistical analysis; Optical thickness of aerosols; MODIS (Moderate Resolution Imaging Spectrometer); Remote Sensing; Variability; Statistics; Behavior; Oceans; Climates; Model Studies; Marine DO - http://dx.doi.org/10.1175/JAS-D-15-0130.1 ER - TY - JOUR T1 - On Averaging Aspect Ratios and Distortion Parameters over Ice Crystal Population Ensembles for Estimating Effective Scattering Asymmetry Parameters AN - 1790966744; PQ0003081353 AB - The use of ensemble-average values of aspect ratio and distortion parameter of hexagonal ice prisms for the estimation of ensemble-average scattering asymmetry parameters is evaluated. Using crystal aspect ratios greater than unity generally leads to ensemble-average values of aspect ratio that are inconsistent with the ensemble-average asymmetry parameters. When a definition of aspect ratio is used that limits the aspect ratio to below unity for both hexagonal plates and columns, the effective asymmetry parameters calculated using ensemble-average aspect ratios are generally consistent with ensemble-average asymmetry parameters, especially if aspect ratios are geometrically averaged. Ensemble-average distortion parameters generally also yield effective asymmetry parameters that are largely consistent with ensemble-average asymmetry parameters. In the case of mixtures of plates and columns, it is recommended to geometrically average the aspect ratios and to subsequently calculate the effective asymmetry parameter using a column or plate geometry when the contribution by columns to a given mixture's total projected area is greater or less than 50%, respectively. In addition, it is shown that ensemble-average aspect ratios, distortion parameters, and asymmetry parameters can generally be retrieved accurately from simulated multidirectional polarization measurements based on mixtures of varying columns and plates. However, such retrievals tend to be somewhat biased toward yielding columnlike aspect ratios. Furthermore, generally large retrieval errors can occur for mixtures with approximately equal contributions of columns and plates and for ensembles with strong contributions of thin plates. JF - Journal of the Atmospheric Sciences AU - Diedenhoven, Bastiaan van AU - Ackerman, Andrew S AU - Fridlind, Ann M AU - Cairns, Brian AD - Center for Climate Systems Research, Columbia University, and NASA Goddard Institute for Space Studies, New York, New York Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 775 EP - 787 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 73 IS - 2 SN - 0022-4928, 0022-4928 KW - Water Resources Abstracts; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Physical Meteorology and Climatology KW - Cloud retrieval KW - Ice crystals KW - Optical properties KW - Observational techniques and algorithms KW - Remote sensing KW - Ice KW - Yield KW - Atmospheric sciences KW - Estimating KW - Crystals KW - Errors KW - Polarization KW - Populations KW - O 5080:Legal/Governmental KW - SW 0810:General KW - Q2 09182:Methods and instruments KW - M2 551.5:General (551.5) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790966744?accountid=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+the+Atmospheric+Sciences&rft.atitle=On+Averaging+Aspect+Ratios+and+Distortion+Parameters+over+Ice+Crystal+Population+Ensembles+for+Estimating+Effective+Scattering+Asymmetry+Parameters&rft.au=Diedenhoven%2C+Bastiaan+van%3BAckerman%2C+Andrew+S%3BFridlind%2C+Ann+M%3BCairns%2C+Brian&rft.aulast=Diedenhoven&rft.aufirst=Bastiaan&rft.date=2016-02-01&rft.volume=73&rft.issue=2&rft.spage=775&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Atmospheric+Sciences&rft.issn=00224928&rft_id=info:doi/10.1175%2FJAS-D-15-0150.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Number of references - 40 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Atmospheric sciences; Polarization; Ice; Yield; Estimating; Crystals; Errors; Populations DO - http://dx.doi.org/10.1175/JAS-D-15-0150.1 ER - TY - JOUR T1 - Impact of Soil Moisture Assimilation on Land Surface Model Spinup and Coupled Land-Atmosphere Prediction AN - 1790966290; PQ0003081566 AB - Advances in satellite monitoring of the terrestrial water cycle have led to a concerted effort to assimilate soil moisture observations from various platforms into offline land surface models (LSMs). One principal but still open question is that of the ability of land data assimilation (LDA) to improve LSM initial conditions for coupled short-term weather prediction. In this study, the impact of assimilating Advanced Microwave Scanning Radiometer for EOS (AMSR-E) soil moisture retrievals on coupled WRF Model forecasts is examined during the summers of dry (2006) and wet (2007) surface conditions in the southern Great Plains. LDA is carried out using NASA's Land Information System (LIS) and the Noah LSM through an ensemble Kalman filter (EnKF) approach. The impacts of LDA on the 1) soil moisture and soil temperature initial conditions for WRF, 2) land-atmosphere coupling characteristics, and 3) ambient weather of the coupled LIS-WRF simulations are then assessed. Results show that impacts of soil moisture LDA during the spinup can significantly modify LSM states and fluxes, depending on regime and season. Results also indicate that the use of seasonal cumulative distribution functions (CDFs) is more advantageous compared to the traditional annual CDF bias correction strategies. LDA performs consistently regardless of atmospheric forcing applied, with greater improvements seen when using coarser, global forcing products. Downstream impacts on coupled simulations vary according to the strength of the LDA impact at the initialization, where significant modifications to the soil moisture flux-PBL-ambient weather process chain are observed. Overall, this study demonstrates potential for future, higher-resolution soil moisture assimilation applications in weather and climate research. JF - Journal of Hydrometeorology AU - Santanello, Joseph A, Jr AU - Kumar, Sujay V AU - Peters-Lidard, Christa D AU - Lawston, Patricia M AD - Hydrological Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, Maryland Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 517 EP - 540 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 17 IS - 2 SN - 1525-755X, 1525-755X KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Physical Meteorology and Climatology KW - Soil moisture KW - Observational techniques and algorithms KW - Satellite observations KW - Models and modeling KW - Data assimilation KW - Land surface model KW - Mesoscale models KW - Prediction KW - Kalman Filters KW - Soil Water KW - Radiometers KW - Microwaves KW - Soils KW - Hydrometeorological forecasting KW - Seasonal variability KW - Initial conditions KW - Weather forecasting KW - Annual Distribution KW - Modelling KW - Temperature effects KW - Weather KW - Soil temperatures KW - Climates KW - Kalman filter KW - Hydrologic cycle KW - Model Studies KW - Hydrometeorology KW - Hydrometeorological research KW - Water cycle KW - Numerical simulations KW - Atmospheric forcing KW - Moisture Content KW - Land-atmosphere interaction KW - Information systems KW - AQ 00001:Water Resources and Supplies KW - Q2 09103:Information services KW - SW 0810:General KW - M2 556.14:Infiltration/Soil Moisture (556.14) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790966290?accountid=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=Impact+of+Soil+Moisture+Assimilation+on+Land+Surface+Model+Spinup+and+Coupled+Land-Atmosphere+Prediction&rft.au=Santanello%2C+Joseph+A%2C+Jr%3BKumar%2C+Sujay+V%3BPeters-Lidard%2C+Christa+D%3BLawston%2C+Patricia+M&rft.aulast=Santanello&rft.aufirst=Joseph&rft.date=2016-02-01&rft.volume=17&rft.issue=2&rft.spage=517&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrometeorology&rft.issn=1525755X&rft_id=info:doi/10.1175%2FJHM-D-15-0072.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Number of references - 58 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Radiometers; Temperature effects; Microwaves; Atmospheric forcing; Soils; Hydrologic cycle; Weather forecasting; Information systems; Modelling; Soil temperatures; Kalman filter; Data assimilation; Hydrometeorological research; Water cycle; Numerical simulations; Seasonal variability; Hydrometeorological forecasting; Soil moisture; Initial conditions; Land-atmosphere interaction; Hydrometeorology; Prediction; Kalman Filters; Weather; Climates; Moisture Content; Soil Water; Annual Distribution; Model Studies DO - http://dx.doi.org/10.1175/JHM-D-15-0072.1 ER - TY - JOUR T1 - Detection and measurement of micrometeoroids with LISA Pathfinder AN - 1787977532; PQ0002969276 AB - We evaluate the radial velocity (RV) information content and achievable precision on M0-M9 spectra covering the ZYJHK bands. We do so while considering both a perfect atmospheric transmission correction and discarding areas polluted by deep telluric features, as done in previous works. To simulate the M-dwarf spectra, PHOENIX-ACES model spectra were employed; they were convolved with rotational kernels and instrumental profiles to reproduce stars with a v sin i of 1.0, 5.0, and 10.0 kms-1 when observed at resolutions of 60000, 80000, and 100000. In our simulations we paid particular attention to the details of the convolution and sampling of the spectra, and we discuss their impact on the final spectra. As a result of the multiparameter nature of the problem, it is very difficult to precisely quantify the impact of absorption by the telluric lines on the RV precision, but it is an important limiting factor to the achievable RV precision. JF - Astronomy & Astrophysics AU - Thorpe, J I AU - Parvini, C AU - Trigo-Rodriguez, J M AD - Gravitational Astrophysics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA, james.i.thorpe@nasa.gov Y1 - 2016/02// PY - 2016 DA - February 2016 PB - EDP Sciences, 17 Avenue du Hoggar Les Ulis Cedex A BP 112 91944 France VL - 586 SN - 0004-6361, 0004-6361 KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - meteorites, meteors, meteoroids KW - instrumentation: miscellaneous KW - Convolution KW - Numerical simulations KW - Absorption KW - Simulation KW - Velocity KW - Stellar investigations KW - Astronomy KW - Atmospheric transmission KW - P 0000:AIR POLLUTION KW - M2 524:Stars, Universe (524) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1787977532?accountid=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=Astronomy+%26+Astrophysics&rft.atitle=Detection+and+measurement+of+micrometeoroids+with+LISA+Pathfinder&rft.au=Thorpe%2C+J+I%3BParvini%2C+C%3BTrigo-Rodriguez%2C+J+M&rft.aulast=Thorpe&rft.aufirst=J&rft.date=2016-02-01&rft.volume=586&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Astronomy+%26+Astrophysics&rft.issn=00046361&rft_id=info:doi/10.1051%2F0004-6361%2F201527658 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Numerical simulations; Stellar investigations; Atmospheric transmission; Convolution; Absorption; Velocity; Simulation; Astronomy DO - http://dx.doi.org/10.1051/0004-6361/201527658 ER - TY - JOUR T1 - Dissolved organic carbon fluxes in the Middle Atlantic Bight: An integrated approach based on satellite data and ocean model products AN - 1780524977; PQ0002833249 AB - Continental margins play an important role in global carbon cycle, accounting for 15-21% of the global marine primary production. Since carbon fluxes across continental margins from land to the open ocean are not well constrained, we undertook a study to develop satellite algorithms to retrieve dissolved organic carbon (DOC) and combined these satellite data with physical circulation model products to quantify the shelf boundary fluxes of DOC for the U.S. Middle Atlantic Bight (MAB). Satellite DOC was computed through seasonal relationships of DOC with colored dissolved organic matter absorption coefficients, which were derived from an extensive set of in situ measurements. The multiyear time series of satellite-derived DOC stocks (4.9TeragramsC; Tg) shows that freshwater discharge influences the magnitude and seasonal variability of DOC on the continental shelf. For the 2010-2012 period studied, the average total estuarine export of DOC into the MAB shelf is 0.77TgCyr super(-1) (year). The integrated DOC tracer fluxes across the shelf boundaries are 12.1TgCyr super(-1) entering the MAB from the southwest alongshore boundary, 18.5TgCyr super(-1) entering the MAB from the northeast alongshore boundary, and 29.0TgCyr super(-1) flowing out of the MAB across the entire length of the 100m isobath. The magnitude of the cross-shelf DOC flux is quite variable in time (monthly) and space (north to south). The highly dynamic exchange of water along the shelf boundaries regulates the DOC budget of the MAB at subseasonal time scales. Key Points * Retrieved DOC from satellite CDOM within estuaries and shelf waters * Computed stocks and lateral fluxes of DOC with satellite data and model physics * Shelf fluxes of DOC are considerably higher than prior estimates JF - Journal of Geophysical Research. G. Biogeosciences AU - Mannino, Antonio AU - Signorini, Sergio R AU - Novak, Michael G AU - Wilkin, John AU - Friedrichs, Marjorie AM AU - Najjar, Raymond G AD - NASA Goddard Space Flight Center, Greenbelt, Maryland, USA. Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 312 EP - 336 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 121 IS - 2 SN - 2169-8953, 2169-8953 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Ecology Abstracts KW - Remote Sensing KW - Dissolved Solids KW - Algorithms KW - Primary production KW - Tracers KW - Carbon KW - Absorption KW - Brackishwater environment KW - Dissolved organic carbon KW - Modelling KW - Marine KW - Satellite Technology KW - Estuarine dynamics KW - Data processing KW - dissolved organic matter KW - Freshwater environments KW - Monoclonal antibodies KW - Organic Carbon KW - Estuaries KW - Carbon cycle KW - Brackish KW - Ocean circulation KW - Satellites KW - Oceans KW - Dissolved organic matter KW - Boundaries KW - ANW, USA, Mid-Atlantic Bight KW - Continental Margin KW - Continental margins KW - Q2 09262:Methods and instruments KW - SW 0810:General KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1780524977?accountid=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+Geophysical+Research.+G.+Biogeosciences&rft.atitle=Dissolved+organic+carbon+fluxes+in+the+Middle+Atlantic+Bight%3A+An+integrated+approach+based+on+satellite+data+and+ocean+model+products&rft.au=Mannino%2C+Antonio%3BSignorini%2C+Sergio+R%3BNovak%2C+Michael+G%3BWilkin%2C+John%3BFriedrichs%2C+Marjorie+AM%3BNajjar%2C+Raymond+G&rft.aulast=Mannino&rft.aufirst=Antonio&rft.date=2016-02-01&rft.volume=121&rft.issue=2&rft.spage=312&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+G.+Biogeosciences&rft.issn=21698953&rft_id=info:doi/10.1002%2F2015JG003031 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-04-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Estuarine dynamics; Carbon; Dissolved organic matter; Ocean circulation; Brackishwater environment; Dissolved organic carbon; Primary production; Continental margins; Modelling; Data processing; Monoclonal antibodies; Freshwater environments; dissolved organic matter; Estuaries; Algorithms; Carbon cycle; Satellites; Tracers; Oceans; Boundaries; Remote Sensing; Dissolved Solids; Satellite Technology; Organic Carbon; Absorption; Continental Margin; ANW, USA, Mid-Atlantic Bight; Marine; Brackish DO - http://dx.doi.org/10.1002/2015JG003031 ER - TY - JOUR T1 - High-resolution NU-WRF simulations of a deep convective-precipitation system during MC3E: Further improvements and comparisons between Goddard microphysics schemes and observations AN - 1776655628; PQ0002780371 AB - The Goddard microphysics was recently improved by adding a fourth ice class (frozen drops/hail). This new 4ICE scheme was developed and tested in the Goddard Cumulus Ensemble (GCE) model for an intense continental squall line and a moderate, less organized continental case. Simulated peak radar reflectivity profiles were improved in intensity and shape for both cases, as were the overall reflectivity probability distributions versus observations. In this study, the new Goddard 4ICE scheme is implemented into the regional-scale NASA Unified-Weather Research and Forecasting (NU-WRF) model, modified and evaluated for the same intense squall line, which occurred during the Midlatitude Continental Convective Clouds Experiment (MC3E). NU-WRF simulated radar reflectivities, total rainfall, propagation, and convective system structures using the 4ICE scheme modified herein agree as well as or significantly better with observations than the original 4ICE and two previous 3ICE (graupel or hail) versions of the Goddard microphysics. With the modified 4ICE, the bin microphysics-based rain evaporation correction improves propagation and in conjunction with eliminating the unrealistic dry collection of ice/snow by hail can replicate the erect, narrow, and intense convective cores. Revisions to the ice supersaturation, ice number concentration formula, and snow size mapping, including a new snow breakup effect, allow the modified 4ICE to produce a stronger, better organized system, more snow, and mimic the strong aggregation signature in the radar distributions. NU-WRF original 4ICE simulated radar reflectivity distributions are consistent with and generally superior to those using the GCE due to the less restrictive domain and lateral boundaries. Key Points * New 4ICE microphysics scheme is implemented in a regional scale model * Radar reflectivities and rain rate intensities are sensitive to the microphysics scheme * The new 4ICE scheme produces radar structures superior to original 4ICE and 3ICE schemes JF - Journal of Geophysical Research: Atmospheres AU - Tao, Wei-Kuo AU - Wu, Di AU - Lang, Stephen AU - Chern, Jiun-Dar AU - Peters-Lidard, Christa AU - Fridlind, Ann AU - Matsui, Toshihisa AD - Mesoscale Atmospheric Processes Laboratory, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA. Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 1278 EP - 1305 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 121 IS - 3 SN - 2169-897X, 2169-897X KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Prediction KW - Supersaturation KW - Reflectance KW - Evaporation KW - Ice core analysis KW - Fluid Drops KW - Convective systems KW - Squalls KW - Scale models KW - Radar reflectivity KW - Modelling KW - Ice KW - Hail KW - Snow KW - Clouds KW - Numerical simulations KW - Convective activity KW - Radar KW - Boundaries KW - Rain KW - Squall lines KW - Q2 09243:Structure, mechanics and thermodynamics KW - SW 0810:General KW - M2 556.13:Evaporation/Evapotranspiration (556.13) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1776655628?accountid=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+Geophysical+Research%3A+Atmospheres&rft.atitle=High-resolution+NU-WRF+simulations+of+a+deep+convective-precipitation+system+during+MC3E%3A+Further+improvements+and+comparisons+between+Goddard+microphysics+schemes+and+observations&rft.au=Tao%2C+Wei-Kuo%3BWu%2C+Di%3BLang%2C+Stephen%3BChern%2C+Jiun-Dar%3BPeters-Lidard%2C+Christa%3BFridlind%2C+Ann%3BMatsui%2C+Toshihisa&rft.aulast=Tao&rft.aufirst=Wei-Kuo&rft.date=2016-02-01&rft.volume=121&rft.issue=3&rft.spage=1278&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2015JD023986 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-03-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Clouds; Prediction; Supersaturation; Scale models; Hail; Reflectance; Snow; Radar; Modelling; Numerical simulations; Radar reflectivity; Evaporation; Ice core analysis; Convective activity; Convective systems; Squall lines; Ice; Squalls; Fluid Drops; Boundaries; Rain DO - http://dx.doi.org/10.1002/2015JD023986 ER - TY - JOUR T1 - Thirty years of vegetation change in the coastal Santa Cruz Mountains of Northern California detected using landsat satellite image analysis AN - 1776649065; PQ0002820183 AB - The Santa Cruz Mountains is a coastal landscape with a history of extensive forest logging, and a future with projected climate warming that may alter vegetation cover and surface water runoff in new ways. Results from Landsat satellite image time-series analysis since 1983 of this study area showed gradual, statistically significant increases in the normalized difference vegetation index (NDVI) in more than 90 % of the (predominantly second-growth) evergreen forest locations sampled. The cumulative distribution of NDVI values in 2013 was significantly different and higher overall from the cumulative distribution of NDVI values in 1983. The extreme drought year of 2013 (and other previous years of low precipitation) did not affect average NDVI growth rates in most drainage basins of the study area, with the exception of four relatively small basins that had less than 30 % forested land cover. Notably different patterns of NDVI change were detected in areas burned by wildfires in recent years. Within the perimeters of the 2008 Summit Fire and the 2009 Lockheed Fire, NDVI showed notable declines from pre-fire levels to those calculated in 2013 Landsat imagery. In contrast to these recent fires, the burned area from the 1985 Lexington Fire showed the highest rate of NDVI increase (over 27 years of regrowth) of any relatively large contiguous area within the Santa Cruz Mountains. JF - Journal of Coastal Conservation AU - Potter, Christopher AD - NASA Ames Research Center, Mail Stop 232-21, Moffett Field, CA, USA, chris.potter@nasa.gov Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 51 EP - 59 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 20 IS - 1 SN - 1400-0350, 1400-0350 KW - Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Sustainability Science Abstracts; Environment Abstracts; Ecology Abstracts KW - Surface water KW - Climate change KW - Statistical analysis KW - Remote sensing KW - Forests KW - Basins KW - Freshwater KW - Time series analysis KW - Mountains KW - Logging KW - Vegetation cover KW - Regrowth KW - Droughts KW - INE, USA, California, Santa Cruz KW - Growth rate KW - Fires KW - Drainage KW - Climate KW - Landscape KW - Image processing KW - Vegetation KW - River basins KW - Precipitation KW - Satellites KW - Satellite sensing KW - Landsat KW - Coastal zone KW - Wildfire KW - Vegetation changes KW - Conservation KW - Runoff KW - O 4090:Conservation and Environmental Protection KW - M3 1010:Issues in Sustainable Development KW - Q5 08502:Methods and instruments KW - ENA 12:Oceans & Estuaries KW - D 04060:Management and Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1776649065?accountid=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+Coastal+Conservation&rft.atitle=Thirty+years+of+vegetation+change+in+the+coastal+Santa+Cruz+Mountains+of+Northern+California+detected+using+landsat+satellite+image+analysis&rft.au=Potter%2C+Christopher&rft.aulast=Potter&rft.aufirst=Christopher&rft.date=2016-02-01&rft.volume=20&rft.issue=1&rft.spage=51&rft.isbn=&rft.btitle=&rft.title=Journal+of+Coastal+Conservation&rft.issn=14000350&rft_id=info:doi/10.1007%2Fs11852-015-0417-5 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-03-01 N1 - Number of references - 39 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Growth rate; Logging; Satellite sensing; Coastal zone; Climate change; Remote sensing; River basins; Droughts; Runoff; Fires; Surface water; Drainage; Landscape; Climate; Statistical analysis; Vegetation; Image processing; Basins; Forests; Precipitation; Satellites; Mountains; Landsat; Wildfire; Vegetation changes; Conservation; Time series analysis; Vegetation cover; Regrowth; INE, USA, California, Santa Cruz; Freshwater DO - http://dx.doi.org/10.1007/s11852-015-0417-5 ER - TY - JOUR T1 - A recycling method for the large-eddy simulation of plumes in the atmospheric boundary layer AN - 1765976538; PQ0002587496 AB - A method for the large-eddy simulation (LES) of dispersion and mixing of passive scalars is developed and evaluated. The new method addresses the requirements of tracking the evolution of plumes for large distances from their sources while attaining a low computational cost. To reduce computational cost, the velocity and thermodynamic fields are solved on a doubly periodic domain in the horizontal directions. In contrast, when the plume reaches the downstream end of the computational domain, it is reintroduced at the upstream plane but as a different scalar field. The same procedure is repeated when the new scalar field reaches the downstream boundary. By using several scalar fields to describe the evolution of a single plume, the simulation is computationally cheaper since the same velocity and thermodynamic fields are reused, or recycled, when computing the plume evolution. The recycling method is verified by showing that low-order plume statistics are identical to a single-domain LES. Three cases of dispersion and mixing from a point ground source in diverse boundary layer conditions (stable, convectively unstable, and shallow cumulus convection) are considered. Moreover, the LES results are compared with the predictions a Gaussian plume model, which is found to perform satisfactorily in all cases when accurate information about the state of the boundary layer is provided. JF - Environmental Fluid Mechanics AU - Matheou, Georgios AU - Bowman, Kevin W AD - Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA, 91109, USA, georgios.matheou@jpl.nasa.gov Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 69 EP - 85 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 16 IS - 1 SN - 1567-7419, 1567-7419 KW - Aqualine Abstracts; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Convection KW - Cumulus cloud convection KW - Fluid mechanics KW - Atmospheric boundary layer KW - Thermodynamics KW - Thermodynamic fields KW - Clouds KW - Numerical simulations KW - Boundary layers KW - Dispersion models KW - Dispersion KW - Prediction KW - Boundary Layers KW - Statistical analysis KW - Recycling KW - Mixing KW - Waste management KW - Costs KW - Plume models KW - Boundary layer conditions KW - Upstream KW - Downstream KW - Dispersion in boundary layer KW - Plumes KW - Marine KW - Simulation KW - Velocity KW - Oceanic eddies KW - Large eddy simulations KW - Tracking KW - Evolution KW - M2 551.558:Vertical Air Motion (551.558) 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/1765976538?accountid=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=Environmental+Fluid+Mechanics&rft.atitle=A+recycling+method+for+the+large-eddy+simulation+of+plumes+in+the+atmospheric+boundary+layer&rft.au=Matheou%2C+Georgios%3BBowman%2C+Kevin+W&rft.aulast=Matheou&rft.aufirst=Georgios&rft.date=2016-02-01&rft.volume=16&rft.issue=1&rft.spage=69&rft.isbn=&rft.btitle=&rft.title=Environmental+Fluid+Mechanics&rft.issn=15677419&rft_id=info:doi/10.1007%2Fs10652-015-9413-4 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-02-01 N1 - Number of references - 33 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Clouds; Fluid mechanics; Convection; Thermodynamics; Boundary layers; Oceanic eddies; Atmospheric boundary layer; Tracking; Dispersion; Plume models; Boundary layer conditions; Cumulus cloud convection; Numerical simulations; Statistical analysis; Dispersion in boundary layer; Dispersion models; Large eddy simulations; Thermodynamic fields; Prediction; Upstream; Velocity; Simulation; Downstream; Recycling; Plumes; Waste management; Costs; Boundary Layers; Mixing; Evolution; Marine DO - http://dx.doi.org/10.1007/s10652-015-9413-4 ER - TY - JOUR T1 - Dynamic responses of atmospheric carbon dioxide concentration to global temperature changes between 1850 and 2010 AN - 1762370988; PQ0002527091 AB - Changes in Earth's temperature have significant impacts on the global carbon cycle that vary at different time scales, yet to quantify such impacts with a simple scheme is traditionally deemed difficult. Here, we show that, by incorporating a temperature sensitivity parameter (1.64 ppm yr super(-1) degree C super(-1)) into a simple linear carbon-cycle model, we can accurately characterize the dynamic responses of atmospheric carbon dioxide (CO sub(2)) concentration to anthropogenic carbon emissions and global temperature changes between 1850 and 2010 (r super(2) > 0.96 and the root-mean-square error < 1 ppm for the period from 1960 onward). Analytical analysis also indicates that the multiplication of the parameter with the response time of the atmospheric carbon reservoir (~12 year) approximates the long-term temperature sensitivity of global atmospheric CO sub(2) concentration (~15 ppm degree C super(-1)), generally consistent with previous estimates based on reconstructed CO sub(2) and climate records over the Little Ice Age. Our results suggest that recent increases in global surface temperatures, which accelerate the release of carbon from the surface reservoirs into the atmosphere, have partially offset surface carbon uptakes enhanced by the elevated atmospheric CO sub(2) concentration and slowed the net rate of atmospheric CO sub(2) sequestration by global land and oceans by ~30% since the 1960s. The linear modeling framework outlined in this paper thus provides a useful tool to diagnose the observed atmospheric CO sub(2) dynamics and monitor their future changes. JF - Advances in Atmospheric Sciences AU - Wang, Weile AU - Nemani, Ramakrishna AD - Department of Science and Environmental Policy, California State University at Monterey Bay, Seaside, CA, 93955, USA, weile.wang@nasa.gov Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 247 EP - 258 PB - China Ocean Press, 8 Dahuisi Beijing 100081 China VL - 33 IS - 2 SN - 0256-1530, 0256-1530 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Surface temperatures KW - Earth temperatures KW - Reservoir KW - Atmospheric pollution models KW - Little Ice Age KW - Atmospheric sciences KW - Carbon KW - Absorption KW - Ocean-atmosphere system KW - Paleoceanography KW - Reservoirs KW - Carbon dioxide emissions KW - Marine KW - Palaeotemperature KW - Ocean-ice-atmosphere system KW - Biogeochemical cycle KW - Climates KW - Temperature KW - Carbon cycle KW - Dynamics KW - Carbon emissions KW - Model Studies KW - Energy flow KW - Oceans KW - Global temperature changes KW - Carbon dioxide KW - Carbon Dioxide KW - M2 556.55:Lakes, Reservoirs, Ponds (556.55) KW - Q2 09242:Observations and measurements at sea KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1762370988?accountid=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=Advances+in+Atmospheric+Sciences&rft.atitle=Dynamic+responses+of+atmospheric+carbon+dioxide+concentration+to+global+temperature+changes+between+1850+and+2010&rft.au=Wang%2C+Weile%3BNemani%2C+Ramakrishna&rft.aulast=Wang&rft.aufirst=Weile&rft.date=2016-02-01&rft.volume=33&rft.issue=2&rft.spage=247&rft.isbn=&rft.btitle=&rft.title=Advances+in+Atmospheric+Sciences&rft.issn=02561530&rft_id=info:doi/10.1007%2Fs00376-015-5090-y LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-02-01 N1 - Number of references - 73 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Reservoir; Ocean-ice-atmosphere system; Energy flow; Palaeotemperature; Atmospheric sciences; Biogeochemical cycle; Ocean-atmosphere system; Carbon cycle; Carbon dioxide; Earth temperatures; Surface temperatures; Little Ice Age; Atmospheric pollution models; Global temperature changes; Paleoceanography; Carbon dioxide emissions; Reservoirs; Carbon emissions; Carbon; Oceans; Climates; Absorption; Temperature; Dynamics; Model Studies; Carbon Dioxide; Marine DO - http://dx.doi.org/10.1007/s00376-015-5090-y ER - TY - JOUR T1 - Airborne measurements and emission estimates of greenhouse gases and other trace constituents from the 2013 California Yosemite Rim wildfire AN - 1762365895; PQ0002518381 AB - This paper presents airborne measurements of multiple atmospheric trace constituents including greenhouse gases (such as CO2, CH4, O3) and biomass burning tracers (such as CO, CH3CN) downwind of an exceptionally large wildfire. In summer 2013, the Rim wildfire, ignited just west of the Yosemite National Park, California, and burned over 250,000 acres of the forest during the 2-month period (17 August to 24 October) before it was extinguished. The Rim wildfire plume was intercepted by flights carried out by the NASA Ames Alpha Jet Atmospheric eXperiment (AJAX) on 29 August and the NASA DC-8, as part of SEAC4RS (Studies of Emissions, Atmospheric Composition, Clouds and Climate Coupling by Regional Surveys), on 26 and 27 August during its intense, primary burning period. AJAX revisited the wildfire on 10 September when the conditions were increasingly smoldering, with slower growth. The more extensive payload of the DC-8 helped to bridge key measurements that were not available as part of AJAX (e. g. CO). Data analyses are presented in terms of emission ratios (ER), emission factors (EF) and combustion efficiency and are compared with previous wildfire studies. ERs were 8.0 ppb CH4 (ppm CO2)-1 on 26 August, 6.5 ppb CH4 (ppm CO2)-1 on 29 August and 18.3 ppb CH4 (ppm CO2)-1 on 10 September 2013. The increase in CH4 ER from 6.5 to 8.0 ppb CH4 (ppm CO2)-1 during the primary burning period to 18.3 ppb CH4 (ppm CO2)-1 during the fire's slower growth period likely indicates enhanced CH4 emissions from increased smoldering combustion relative to flaming combustion. Given the magnitude of the Rim wildfire, the impacts it had on regional air quality and the limited sampling of wildfire emissions in the western United States to date, this study provides a valuable dataset to support forestry and regional air quality management, including observations of ERs of a wide number of species from the Rim wildfire. JF - Atmospheric Environment AU - Yates, EL AU - Iraci, L T AU - Singh, H B AU - Tanaka, T AU - Roby, M C AU - Hamill, P AU - Clements, C B AU - Lareau, N AU - Contezac, J AU - Blake AU - Simpson, I J AU - Wisthaler, A AU - Mikoviny, T AU - Diskin, G S AU - Beyersdorf, A J AU - Choi, Y AU - Ryerson, T B AU - Jimenez, J L AU - Campuzano-Jost, P AU - Loewenstein, M AU - Gore, W AD - NASA Ames Research Center, Moffett Field, CA, USA Y1 - 2016/02// PY - 2016 DA - February 2016 SP - 293 EP - 302 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 127 SN - 1352-2310, 1352-2310 KW - Environment Abstracts; Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Wildfire KW - Trace gases KW - Emission factors KW - Enhancement ratios KW - Western US KW - Combustion products KW - Climate change KW - National parks KW - Air quality KW - Methane in the atmosphere KW - Carbon monoxide KW - Tracers KW - Growth KW - INE, USA, California KW - Emission measurements KW - Emissions KW - Atmospheric composition KW - Methane emissions KW - Sampling KW - Plumes KW - Carbon dioxide emissions KW - Wind KW - Forestry KW - Ozone KW - Growth rate KW - Methane KW - Bridges KW - Atmospheric pollution KW - Climates KW - Greenhouse effect KW - Biomass KW - Data analysis KW - Combustion KW - Clouds KW - Incineration KW - Air quality management KW - Atmospheric chemistry KW - Burning KW - Greenhouse gases KW - Carbon dioxide KW - Carbon Dioxide KW - Q2 09243:Structure, mechanics and thermodynamics KW - M2 551.510.42:Air Pollution (551.510.42) KW - SW 6010:Structures KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1762365895?accountid=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+Environment&rft.atitle=Airborne+measurements+and+emission+estimates+of+greenhouse+gases+and+other+trace+constituents+from+the+2013+California+Yosemite+Rim+wildfire&rft.au=Yates%2C+EL%3BIraci%2C+L+T%3BSingh%2C+H+B%3BTanaka%2C+T%3BRoby%2C+M+C%3BHamill%2C+P%3BClements%2C+C+B%3BLareau%2C+N%3BContezac%2C+J%3BBlake%3BSimpson%2C+I+J%3BWisthaler%2C+A%3BMikoviny%2C+T%3BDiskin%2C+G+S%3BBeyersdorf%2C+A+J%3BChoi%2C+Y%3BRyerson%2C+T+B%3BJimenez%2C+J+L%3BCampuzano-Jost%2C+P%3BLoewenstein%2C+M%3BGore%2C+W&rft.aulast=Yates&rft.aufirst=EL&rft.date=2016-02-01&rft.volume=127&rft.issue=&rft.spage=293&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2Fj.atmosenv.2015.12.038 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-02-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Clouds; Growth rate; Carbon monoxide; Growth; Atmospheric chemistry; Climate change; Greenhouse effect; Carbon dioxide; Ozone; Methane in the atmosphere; Atmospheric pollution; Air quality management; Atmospheric composition; Air quality; Methane emissions; Data analysis; Greenhouse gases; Carbon dioxide emissions; Methane; Combustion products; National parks; Biomass; Combustion; Wildfire; Emissions; Emission measurements; Burning; Wind; Forestry; Tracers; Incineration; Bridges; Climates; Sampling; Plumes; Carbon Dioxide; INE, USA, California DO - http://dx.doi.org/10.1016/j.atmosenv.2015.12.038 ER - TY - NEWS T1 - Studying Pluto from 3 Billion Miles Away AN - 1758829229 JF - UPI Space Daily AU - Amanda Zangari for Pluto NASA Blog Y1 - 2016/01/22/ PY - 2016 DA - 2016 Jan 22 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1758829229?accountid=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=Studying+Pluto+from+3+Billion+Miles+Away&rft.au=Amanda+Zangari+for+Pluto+NASA+Blog&rft.aulast=Amanda+Zangari+for+Pluto+NASA+Blog&rft.aufirst=&rft.date=2016-01-22&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 - 2016-01-22 ER - TY - JOUR T1 - A global Mars dust composition refined by the alpha-particle X-ray spectrometer in Gale Crater AN - 1812220444; 2016-072360 AB - Modern Martian dust is similar in composition to the global soil unit and bulk basaltic Mars crust, but it is enriched in S and Cl. The Alpha Particle X-ray Spectrometer (APXS) on the Mars Science Laboratory Curiosity rover analyzed air fall dust on the science observation tray (o-tray) in Gale Crater to determine dust oxide compositions. The o-tray dust has the highest concentrations of SO (sub 3) and Cl measured in Mars dust (SO (sub 3) 8.3%; Cl 1.1 wt %). The molar S/Cl in the dust (3.35 + or - 0.34) is consistent with previous studies of Martian dust and soils (S/Cl = 3.7 + or - 0.7). Fe is also elevated approximately 25% over average Mars soils and the bulk crust. These enrichments link air fall dust with the S-, Cl-, and Fe-rich X-ray amorphous component of Gale Crater soil. Dust and soil have the same S/Cl, constraining the surface concentrations of S and Cl on a global scale. Abstract Copyright (2015), . American Geophysical Union. All Rights Reserved. JF - Geophysical Research Letters AU - Berger, Jeff A AU - Schmidt, Mariek E AU - Gellert, Ralf AU - Campbell, John L AU - King, Penelope L AU - Flemming, Roberta L AU - Ming, Douglas W AU - Clark, Benton C AU - Pradler, Irina AU - van Bommel, Scott J V AU - Minitti, Michelle E AU - Fairen, Alberto G AU - Boyd, Nicholas I AU - Thompson, Lucy M AU - Perrett, Glynis M AU - Elliott, Beverley E AU - Desouza, Elstan Y1 - 2016/01/16/ PY - 2016 DA - 2016 Jan 16 SP - 67 EP - 75 PB - American Geophysical Union, Washington, DC VL - 43 IS - 1 SN - 0094-8276, 0094-8276 KW - soils KW - chlorine KW - concentration KW - Alpha-Particle X-ray Spectrometer KW - clastic sediments KW - halogens KW - Mars KW - Gale Crater KW - terrestrial planets KW - planets KW - dust KW - Curiosity Rover KW - sediments KW - Mars Science Laboratory KW - sulfur KW - oxides KW - chemical composition KW - instruments KW - crust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812220444?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=A+global+Mars+dust+composition+refined+by+the+alpha-particle+X-ray+spectrometer+in+Gale+Crater&rft.au=Berger%2C+Jeff+A%3BSchmidt%2C+Mariek+E%3BGellert%2C+Ralf%3BCampbell%2C+John+L%3BKing%2C+Penelope+L%3BFlemming%2C+Roberta+L%3BMing%2C+Douglas+W%3BClark%2C+Benton+C%3BPradler%2C+Irina%3Bvan+Bommel%2C+Scott+J+V%3BMinitti%2C+Michelle+E%3BFairen%2C+Alberto+G%3BBoyd%2C+Nicholas+I%3BThompson%2C+Lucy+M%3BPerrett%2C+Glynis+M%3BElliott%2C+Beverley+E%3BDesouza%2C+Elstan&rft.aulast=Berger&rft.aufirst=Jeff&rft.date=2016-01-16&rft.volume=43&rft.issue=1&rft.spage=67&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1002%2F2015GL066675 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291944-8007/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 47 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-11-17 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - Alpha-Particle X-ray Spectrometer; chemical composition; chlorine; clastic sediments; concentration; crust; Curiosity Rover; dust; Gale Crater; halogens; instruments; Mars; Mars Science Laboratory; oxides; planets; sediments; soils; sulfur; terrestrial planets DO - http://dx.doi.org/10.1002/2015GL066675 ER - TY - JOUR T1 - Fe/Mg smectite formation under acidic conditions on early Mars AN - 1789748408; 2016-044556 AB - Phyllosilicates of the smectite group detected in Noachian and early Hesperian terrains on Mars have been hypothesized to form under neutral to alkaline conditions. These pH conditions would also be favorable for formation of widespread carbonate deposits which have not been detected on Mars. We propose that smectite deposits on Mars formed under moderately acidic conditions inhibiting carbonate formation. We report here the first synthesis of Fe/Mg smectite in an acidic hydrothermal system [200 degrees C, pH (sub RT) approximately 4 (pH measured at room temperature) buffered with acetic acid] from Mars-analogue, glass-rich, basalt simulant with and without aqueous Mg or Fe(II) addition under N (sub 2) -purged anoxic and ambient oxic redox conditions. Synthesized Fe/Mg smectite was examined by X-ray-diffraction, Moessbauer spectroscopy, visible and near-infrared reflectance spectroscopy, scanning electron microscopy and electron microprobe to characterize mineralogy, morphology and chemical composition. Alteration of the glass phase of basalt simulant resulted in formation of the Fe/Mg smectite mineral saponite with some mineralogical and chemical properties similar to the properties reported for Fe/Mg smectite on Mars. Our experiments are evidence that neutral to alkaline conditions on early Mars are not necessary for Fe/Mg smectite formation as previously inferred. Phyllosilicate minerals could instead have formed under mildly acidic pH conditions. Volcanic SO (sub 2) emanation and sulfuric acid formation is proposed as the major source of acidity for the alteration of basaltic materials and subsequent formation of Fe/Mg smectite. Abstract Copyright (2016) Elsevier, B.V. JF - Geochimica et Cosmochimica Acta AU - Peretyazhko, T S AU - Sutter, B AU - Morris, R V AU - Agresti, D G AU - Le, L AU - Ming, D W Y1 - 2016/01/15/ PY - 2016 DA - 2016 Jan 15 SP - 37 EP - 49 PB - Elsevier, New York, NY VL - 173 SN - 0016-7037, 0016-7037 KW - United States KW - silicates KW - near-infrared spectra KW - magnesium KW - volcanic rocks KW - Noachian KW - X-ray diffraction data KW - igneous rocks KW - Mars KW - Hesperian KW - simulation KW - iron KW - electron probe data KW - basalts KW - sediments KW - acidic composition KW - spectra KW - chemical ratios KW - pH KW - Mossbauer spectra KW - carbonate sediments KW - alkaline earth metals KW - experimental studies KW - smectite KW - electron microscopy data KW - cosmochemistry KW - clay minerals KW - terrestrial planets KW - planets KW - New York KW - deposition KW - metals KW - crystallization KW - sheet silicates KW - crystal chemistry KW - Adirondack Mountains KW - SEM data KW - 04:Extraterrestrial geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789748408?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Fe%2FMg+smectite+formation+under+acidic+conditions+on+early+Mars&rft.au=Peretyazhko%2C+T+S%3BSutter%2C+B%3BMorris%2C+R+V%3BAgresti%2C+D+G%3BLe%2C+L%3BMing%2C+D+W&rft.aulast=Peretyazhko&rft.aufirst=T&rft.date=2016-01-15&rft.volume=173&rft.issue=&rft.spage=37&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2015.10.012 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 73 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-05-19 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - acidic composition; Adirondack Mountains; alkaline earth metals; basalts; carbonate sediments; chemical ratios; clay minerals; cosmochemistry; crystal chemistry; crystallization; deposition; electron microscopy data; electron probe data; experimental studies; Hesperian; igneous rocks; iron; magnesium; Mars; metals; Mossbauer spectra; near-infrared spectra; New York; Noachian; pH; planets; sediments; SEM data; sheet silicates; silicates; simulation; smectite; spectra; terrestrial planets; United States; volcanic rocks; X-ray diffraction data DO - http://dx.doi.org/10.1016/j.gca.2015.10.012 ER - TY - JOUR T1 - The origin of boninites on Mercury; an experimental study of the northern volcanic plains lavas AN - 1789748141; 2016-044569 AB - Phase equilibrium experiments were conducted on a synthetic rock composition matching that of the northern volcanic plains of Mercury as measured by the MErcury Surface, Space ENvironment, GEochemistry and Ranging spacecraft (MESSENGER). The northern volcanic plains are smooth plains of suspected volcanic origin that cover more than 6% of the surface area of Mercury. The northern volcanic plains are less cratered than their surroundings and reported to be the product of flood volcanism, making them a prime candidate for experimental study. The bulk composition of the northern volcanic plains is that of an alkali-rich boninite and represents the first silica-enriched crustal terrane identified on an extraterrestrial planet from orbital data. Phase equilibrium experiments were conducted over the pressure range of the mercurian mantle (0.5-5 GPa) at very low oxygen fugacity ( approximately Delta IW0 to -7) using a piston-cylinder apparatus (P 0.5-1.7GPa) and a Walker-style multi-anvil device (P > or = 2.5 GPa). Our results indicate the origin of the northern volcanic plains lavas (boninites) are best explained by high degrees of partial melting of an olivine-dominant, pyroxene- and plagioclase-bearing mantle source at low pressure (< or =1.4 GPa) and does not require hydrous melting to achieve the silica-enriched melt composition. The formation mechanism for boninites on Mercury contrasts substantially with terrestrial boninites, which typically occur in oxidized and hydrous arc environments associated with subduction zones. Instead, mercurian boninites form at exceptionally low oxygen fugacity and do not require melting of hydrated source materials. The NVP lavas represent a novel mechanism by which planetary bodies can form silica-enriched secondary crusts without the aid of water. Abstract Copyright (2016) Elsevier, B.V. JF - Geochimica et Cosmochimica Acta AU - Vander Kaaden, Kathleen E AU - McCubbin, Francis M Y1 - 2016/01/15/ PY - 2016 DA - 2016 Jan 15 SP - 246 EP - 263 PB - Elsevier, New York, NY VL - 173 SN - 0016-7037, 0016-7037 KW - andesites KW - volcanic rocks KW - subduction zones KW - boninite KW - igneous rocks KW - flood volcanism KW - mineral composition KW - water-rock interaction KW - phase equilibria KW - volcanism KW - Mercury Planet KW - gamma-ray spectra KW - water content KW - plains KW - spectra KW - orbital observations KW - mineral assemblages KW - chemical composition KW - geochemistry KW - chemical ratios KW - P-T conditions KW - experimental studies KW - textures KW - oxidation KW - magmatism KW - cosmochemistry KW - X-ray spectra KW - alkalic composition KW - terrestrial planets KW - planets KW - hydration KW - terrains KW - craters KW - island arcs KW - metals KW - planetary interiors KW - anvil cells KW - MESSENGER Mission KW - remote sensing KW - 04:Extraterrestrial geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789748141?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=The+origin+of+boninites+on+Mercury%3B+an+experimental+study+of+the+northern+volcanic+plains+lavas&rft.au=Vander+Kaaden%2C+Kathleen+E%3BMcCubbin%2C+Francis+M&rft.aulast=Vander+Kaaden&rft.aufirst=Kathleen&rft.date=2016-01-15&rft.volume=173&rft.issue=&rft.spage=246&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2015.10.016 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 102 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-05-19 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkalic composition; andesites; anvil cells; boninite; chemical composition; chemical ratios; cosmochemistry; craters; experimental studies; flood volcanism; gamma-ray spectra; geochemistry; hydration; igneous rocks; island arcs; magmatism; Mercury Planet; MESSENGER Mission; metals; mineral assemblages; mineral composition; orbital observations; oxidation; P-T conditions; phase equilibria; plains; planetary interiors; planets; remote sensing; spectra; subduction zones; terrains; terrestrial planets; textures; volcanic rocks; volcanism; water content; water-rock interaction; X-ray spectra DO - http://dx.doi.org/10.1016/j.gca.2015.10.016 ER - TY - JOUR T1 - The formation of nuggets of highly siderophile elements in quenched silicate melts at high temperatures; before or during the silicate quench? AN - 1780804429; 2016-034404 AB - The Highly Siderophile Elements (HSE) are powerful tracers of planetary differentiation. Despite the importance of their partitioning between silicate and metal for the understanding of planetary core formation, especially for the Earth and Mars, there is still a huge discrepancy between conclusions based on different high temperature (HT) experimental studies. These disagreements may be due to the presence of HSE micro and nanonuggets in HT experiments. The formation of these nuggets is still interpreted in different ways. One hypothesis is that these HSE nuggets formed during the quench of the silicate melt, while another hypothesis supposes that these nuggets formed before the quench and represented artefacts of HT experiments. The goal of this work is to clarify whether the presence of HSE nuggets in silicate melts is linked to a quench effect or not. Understanding the formation of these HSE nuggets represents thus a necessary step towards the resolution of the Earth's core formation scenarios. We performed new HT experiments (1275-2000 degrees C) at different oxygen fugacities (fO (sub 2) ), between ambient air up to approximately 5 log units below the Iron-Wuestite buffer [IW-5], for two different silicate compositions (synthetic martian and terrestrial basalts) mixed with a metallic mixture of Pt-Au-Pd-Ru. Our 1275-1600 degrees C experiments were contained in either olivine, diopside or graphite crucible; experiments at 2000 degrees C were performed using a levitation method, so no capsule was necessary. Our samples contained quenched silicate melts, minerals (olivine, pyroxene, spinel depending on the run), a two-phase metallic bead and nano- and micro-nuggets of HSE. Our samples underwent fine textural, structural and analytical characterizations. The distribution of the nuggets was not homogeneous throughout the quenched silicate melt. HSE nuggets were present within crystals. Dendritic textures from the quenched silicate melt formed around HSE nuggets, which could be crystallized, showing that the nuggets acted as nucleation sites during the quench. Thus they predated the quench. Finally, these nuggets also had strong heterogeneities suggesting at least a two-stage formation process under reducing conditions. Consequently, our observations clearly show that these HSE nuggets formed before the quench in the silicate melt. Our results agreed with previous studies, which concluded that HSE abundances in the Earth's mantle require the late accretion of chondritic material subsequent to core formation. However, the effects of metallic Si, O, H, or the effect of pressure on the HSE partitioning are still not fully understood. Further work to constrain these effects is to be encouraged to understand the Earth's core formation. Abstract Copyright (2016) Elsevier, B.V. JF - Earth and Planetary Science Letters AU - Malavergne, V AU - Charon, E AU - Jones, J AU - Cordier, P AU - Righter, K AU - Deldicque, D AU - Hennet, L Y1 - 2016/01/15/ PY - 2016 DA - 2016 Jan 15 SP - 197 EP - 207 PB - Elsevier, Amsterdam VL - 434 SN - 0012-821X, 0012-821X KW - silicates KW - nuggets KW - phase transitions KW - platinum group KW - quenching KW - melts KW - temperature KW - electron probe data KW - partitioning KW - inclusions KW - Eh KW - P-T conditions KW - experimental studies KW - pressure KW - textures KW - silicate melts KW - differentiation KW - siderophile elements KW - high pressure KW - planets KW - metals KW - planetology KW - core KW - high temperature KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1780804429?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=The+formation+of+nuggets+of+highly+siderophile+elements+in+quenched+silicate+melts+at+high+temperatures%3B+before+or+during+the+silicate+quench%3F&rft.au=Malavergne%2C+V%3BCharon%2C+E%3BJones%2C+J%3BCordier%2C+P%3BRighter%2C+K%3BDeldicque%2C+D%3BHennet%2C+L&rft.aulast=Malavergne&rft.aufirst=V&rft.date=2016-01-15&rft.volume=434&rft.issue=&rft.spage=197&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2015.11.037 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 50 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2016-04-14 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - core; differentiation; Eh; electron probe data; experimental studies; high pressure; high temperature; inclusions; melts; metals; nuggets; P-T conditions; partitioning; phase transitions; planetology; planets; platinum group; pressure; quenching; siderophile elements; silicate melts; silicates; temperature; textures DO - http://dx.doi.org/10.1016/j.epsl.2015.11.037 ER - TY - JOUR T1 - A full Martian year of the line-of-sight extinction within Gale Crater, Mars as acquired by the MSL Navcam through sol 900 AN - 1780802606; 2016-032395 JF - Icarus AU - Moore, Casey A AU - Moores, John E AU - Lemmon, Mark T AU - Rafkin, Scot C R AU - Francis, Raymond AU - Pla-Garcia, Jorge AU - Haberle, Robert M AU - Zorzano, Maria-Paz AU - Martin-Torres, F Javier AU - Burton, John R Y1 - 2016/01/15/ PY - 2016 DA - 2016 Jan 15 SP - 102 EP - 108 PB - Elsevier, New York, NY VL - 264 SN - 0019-1035, 0019-1035 KW - imagery KW - impact features KW - clastic sediments KW - Navcam KW - atmosphere KW - Mars KW - dust devils KW - depth KW - astronomical extinction KW - Gale Crater KW - terrestrial planets KW - planets KW - dynamics KW - dust KW - Curiosity Rover KW - sediments KW - Mars Science Laboratory KW - impact craters KW - boundary layer KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1780802606?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+full+Martian+year+of+the+line-of-sight+extinction+within+Gale+Crater%2C+Mars+as+acquired+by+the+MSL+Navcam+through+sol+900&rft.au=Moore%2C+Casey+A%3BMoores%2C+John+E%3BLemmon%2C+Mark+T%3BRafkin%2C+Scot+C+R%3BFrancis%2C+Raymond%3BPla-Garcia%2C+Jorge%3BHaberle%2C+Robert+M%3BZorzano%2C+Maria-Paz%3BMartin-Torres%2C+F+Javier%3BBurton%2C+John+R&rft.aulast=Moore&rft.aufirst=Casey&rft.date=2016-01-15&rft.volume=264&rft.issue=&rft.spage=102&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.09.001 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 25 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2016-04-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - astronomical extinction; atmosphere; boundary layer; clastic sediments; Curiosity Rover; depth; dust; dust devils; dynamics; Gale Crater; imagery; impact craters; impact features; Mars; Mars Science Laboratory; Navcam; planets; sediments; terrestrial planets DO - http://dx.doi.org/10.1016/j.icarus.2015.09.001 ER - TY - JOUR T1 - Gould's Belt, interstellar clouds, and the Eocene-Oligocene helium-3 enhancement AN - 1780802149; 2016-032396 JF - Icarus AU - Rubincam, David Parry Y1 - 2016/01/15/ PY - 2016 DA - 2016 Jan 15 SP - 132 EP - 136 PB - Elsevier, New York, NY VL - 264 SN - 0019-1035, 0019-1035 KW - impact features KW - isotopes KW - orbits KW - Russian Federation KW - He-3 KW - interplanetary space KW - interplanetary dust KW - stable isotopes KW - eccentricity KW - meteors KW - Cenozoic KW - meteorites KW - Commonwealth of Independent States KW - Popigay Structure KW - noble gases KW - interstellar clouds KW - helium KW - Chesapeake Bay impact structure KW - Asia KW - solar system KW - Gould's Belt KW - asteroid belts KW - Eocene KW - trajectories KW - Paleogene KW - geometry KW - Tertiary KW - resonance KW - cosmic dust KW - hydrogen KW - impact craters KW - stratigraphic boundary KW - Oligocene KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1780802149?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Gould%27s+Belt%2C+interstellar+clouds%2C+and+the+Eocene-Oligocene+helium-3+enhancement&rft.au=Rubincam%2C+David+Parry&rft.aulast=Rubincam&rft.aufirst=David&rft.date=2016-01-15&rft.volume=264&rft.issue=&rft.spage=132&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.09.015 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 37 N1 - PubXState - NY N1 - Document feature - illus. N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-04-14 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - Asia; asteroid belts; Cenozoic; Chesapeake Bay impact structure; Commonwealth of Independent States; cosmic dust; eccentricity; Eocene; geometry; Gould's Belt; He-3; helium; hydrogen; impact craters; impact features; interplanetary dust; interplanetary space; interstellar clouds; isotopes; meteorites; meteors; noble gases; Oligocene; orbits; Paleogene; Popigay Structure; resonance; Russian Federation; solar system; stable isotopes; stratigraphic boundary; Tertiary; trajectories DO - http://dx.doi.org/10.1016/j.icarus.2015.09.015 ER - TY - JOUR T1 - How surface composition and meteoroid impacts mediate sodium and potassium in the lunar exosphere AN - 1773799201; 2016-025644 AB - Despite being trace constituents of the lunar exosphere, sodium and potassium are the most readily observed species due to their bright line emission. Measurements of these species by the Ultraviolet and Visible Spectrometer (UVS) on the Lunar Atmosphere and Dust Environment Explorer (LADEE) have revealed unambiguous temporal and spatial variations indicative of a strong role for meteoroid bombardment and surface composition in determining the composition and local time dependence of the Moon's exosphere. Observations show distinct lunar day (monthly) cycles for both species as well as an annual cycle for sodium. The first continuous measurements for potassium show a more repeatable variation across lunations and an enhancement over KREEP (Potassium Rare Earth Elements and Phosphorus) surface regions, revealing a strong dependence on surface composition. JF - Science AU - Colaprete, Anthony AU - Sarantos, Menelaos AU - Wooden, D H AU - Stubbs, T J AU - Cook, A M AU - Shirley, M Y1 - 2016/01/15/ PY - 2016 DA - 2016 Jan 15 SP - 249 EP - 252 PB - American Association for the Advancement of Science, Washington, DC VL - 351 IS - 6270 SN - 0036-8075, 0036-8075 KW - Moon KW - alkali metals KW - atmosphere KW - cosmochemistry KW - sodium KW - meteoroids KW - impacts KW - measurement KW - exosphere KW - Lunar Atmosphere and Dust Environment Explorer KW - KREEP KW - metals KW - potassium KW - spectra KW - orbital observations KW - geochemistry KW - instruments KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773799201?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=How+surface+composition+and+meteoroid+impacts+mediate+sodium+and+potassium+in+the+lunar+exosphere&rft.au=Colaprete%2C+Anthony%3BSarantos%2C+Menelaos%3BWooden%2C+D+H%3BStubbs%2C+T+J%3BCook%2C+A+M%3BShirley%2C+M&rft.aulast=Colaprete&rft.aufirst=Anthony&rft.date=2016-01-15&rft.volume=351&rft.issue=6270&rft.spage=249&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.aad2380 L2 - http://www.sciencemag.org/magazine LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 24 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2016-03-17 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - alkali metals; atmosphere; cosmochemistry; exosphere; geochemistry; impacts; instruments; KREEP; Lunar Atmosphere and Dust Environment Explorer; measurement; metals; meteoroids; Moon; orbital observations; potassium; sodium; spectra DO - http://dx.doi.org/10.1126/science.aad2380 ER - TY - NEWS T1 - Probing the Mysterious Glacial Flow on Pluto's Frozen 'Heart' AN - 1756565147 JF - UPI Space Daily AU - Orkan Umurhan for https://blogs.nasa.gov/pluto/ Pluto Blogs Y1 - 2016/01/12/ PY - 2016 DA - 2016 Jan 12 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1756565147?accountid=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=Probing+the+Mysterious+Glacial+Flow+on+Pluto%27s+Frozen+%27Heart%27&rft.au=Orkan+Umurhan+for+https%3A%2F%2Fblogs.nasa.gov%2Fpluto%2F+Pluto+Blogs&rft.aulast=Orkan+Umurhan+for+https%3A%2F%2Fblogs.nasa.gov%2Fpluto%2F+Pluto+Blogs&rft.aufirst=&rft.date=2016-01-12&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 - 2016-01-14 ER - TY - JOUR T1 - Geomorphic and geologic controls of geohazards induced by Nepal's 2015 Gorkha earthquake AN - 1773800370; 2016-023486 AB - The Gorkha earthquake (magnitude 7.8) on 25 April 2015 and later aftershocks struck South Asia, killing approximately 9000 people and damaging a large region. Supported by a large campaign of responsive satellite data acquisitions over the earthquake disaster zone, our team undertook a satellite image survey of the earthquakes' induced geohazards in Nepal and China and an assessment of the geomorphic, tectonic, and lithologic controls on quake-induced landslides. Timely analysis and communication aided response and recovery and informed decision-makers. We mapped 4312 coseismic and postseismic landslides. We also surveyed 491 glacier lakes for earthquake damage but found only nine landslide-impacted lakes and no visible satellite evidence of outbursts. Landslide densities correlate with slope, peak ground acceleration, surface downdrop, and specific metamorphic lithologies and large plutonic intrusions. JF - Science AU - Kargel, J S AU - Leonard, G J AU - Shugar, D H AU - Haritashya, U K AU - Bevington, A AU - Fielding, E J AU - Fujita, K AU - Geertsema, M AU - Miles, E S AU - Steiner, J AU - Anderson, E AU - Bajracharya, S AU - Bawden, G W AU - Breashears, D F AU - Byers, A AU - Collins, B AU - Dhital, M R AU - Donnellan, A AU - Evans, T L AU - Geai, M L AU - Glasscoe, M T AU - Green, D AU - Gurung, D R AU - Heijenk, R AU - Hilborn, A AU - Hudnut, K AU - Huyck, C AU - Immerzeel, W W AU - Jiang, Liming AU - Jibson, R AU - Kaab, A AU - Khanal, N R AU - Kirschbaum, D AU - Kraaijenbrink, P D A AU - Lamsal, D AU - Liu, Shiyin AU - Lu, Mingyang AU - McKinney, D AU - Nahirnick, N K AU - Nan, Zhuotong AU - Ojha, S AU - Olsenholler, J AU - Painter, T H AU - Pleasants, M AU - Pratima, K C AU - Yuan, Q I AU - Raup, B H AU - Regmi, D AU - Rounce, D R AU - Sakai, A AU - Donghui, Shangguan AU - Shea, J M AU - Shrestha, A B AU - Shukla, A AU - Stumm, D AU - van der Kooij, M AU - Voss, K AU - Wang, Xin AU - Weihs, B AU - Wolfe, D AU - Wu, Lizong AU - Yao, Xiaojun AU - Yoder, M R AU - Young, N Y1 - 2016/01/08/ PY - 2016 DA - 2016 Jan 08 SP - 140 PB - American Association for the Advancement of Science, Washington, DC VL - 351 IS - 6269 SN - 0036-8075, 0036-8075 KW - geologic hazards KW - lakes KW - destruction KW - surficial geology KW - Gorkha earthquake 2015 KW - displacements KW - Nepal KW - controls KW - neotectonics KW - Main Himalayan Fault KW - Indian Peninsula KW - jokulhlaups KW - mass movements KW - tectonics KW - Asia KW - faults KW - glacial lakes KW - shock waves KW - magnitude KW - damage KW - decision-making KW - glacial features KW - satellite methods KW - landslides KW - natural hazards KW - ground motion KW - epicenters KW - geomorphology KW - earthquakes KW - remote sensing KW - 19:Seismology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773800370?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Geomorphic+and+geologic+controls+of+geohazards+induced+by+Nepal%27s+2015+Gorkha+earthquake&rft.au=Kargel%2C+J+S%3BLeonard%2C+G+J%3BShugar%2C+D+H%3BHaritashya%2C+U+K%3BBevington%2C+A%3BFielding%2C+E+J%3BFujita%2C+K%3BGeertsema%2C+M%3BMiles%2C+E+S%3BSteiner%2C+J%3BAnderson%2C+E%3BBajracharya%2C+S%3BBawden%2C+G+W%3BBreashears%2C+D+F%3BByers%2C+A%3BCollins%2C+B%3BDhital%2C+M+R%3BDonnellan%2C+A%3BEvans%2C+T+L%3BGeai%2C+M+L%3BGlasscoe%2C+M+T%3BGreen%2C+D%3BGurung%2C+D+R%3BHeijenk%2C+R%3BHilborn%2C+A%3BHudnut%2C+K%3BHuyck%2C+C%3BImmerzeel%2C+W+W%3BJiang%2C+Liming%3BJibson%2C+R%3BKaab%2C+A%3BKhanal%2C+N+R%3BKirschbaum%2C+D%3BKraaijenbrink%2C+P+D+A%3BLamsal%2C+D%3BLiu%2C+Shiyin%3BLu%2C+Mingyang%3BMcKinney%2C+D%3BNahirnick%2C+N+K%3BNan%2C+Zhuotong%3BOjha%2C+S%3BOlsenholler%2C+J%3BPainter%2C+T+H%3BPleasants%2C+M%3BPratima%2C+K+C%3BYuan%2C+Q+I%3BRaup%2C+B+H%3BRegmi%2C+D%3BRounce%2C+D+R%3BSakai%2C+A%3BDonghui%2C+Shangguan%3BShea%2C+J+M%3BShrestha%2C+A+B%3BShukla%2C+A%3BStumm%2C+D%3Bvan+der+Kooij%2C+M%3BVoss%2C+K%3BWang%2C+Xin%3BWeihs%2C+B%3BWolfe%2C+D%3BWu%2C+Lizong%3BYao%2C+Xiaojun%3BYoder%2C+M+R%3BYoung%2C+N&rft.aulast=Kargel&rft.aufirst=J&rft.date=2016-01-08&rft.volume=351&rft.issue=6269&rft.spage=140&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.aac8353 L2 - http://www.sciencemag.org/magazine LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 64 N1 - PubXState - DC N1 - Document feature - illus. incl. geol. sketch maps N1 - SuppNotes - Full text available only online N1 - Last updated - 2016-05-19 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - Asia; controls; damage; decision-making; destruction; displacements; earthquakes; epicenters; faults; geologic hazards; geomorphology; glacial features; glacial lakes; Gorkha earthquake 2015; ground motion; Indian Peninsula; jokulhlaups; lakes; landslides; magnitude; Main Himalayan Fault; mass movements; natural hazards; neotectonics; Nepal; remote sensing; satellite methods; shock waves; surficial geology; tectonics DO - http://dx.doi.org/10.1126/science.aac8353 ER - TY - NEWS T1 - Synthetic Muscles AN - 1756565157 JF - UPI Space Daily AU - Staff Writers for http://science.nasa.gov/ NASA Science News Y1 - 2016/01/05/ PY - 2016 DA - 2016 Jan 05 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1756565157?accountid=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=Synthetic+Muscles&rft.au=Staff+Writers+for+http%3A%2F%2Fscience.nasa.gov%2F+NASA+Science+News&rft.aulast=Staff+Writers+for+http%3A%2F%2Fscience.nasa.gov%2F+NASA+Science+News&rft.aufirst=&rft.date=2016-01-05&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 - 2016-01-14 ER - TY - JOUR T1 - Mineralogical analysis of the Haulani quadrangle on the dwarf planet Ceres AN - 1863567853; 2017-007692 AB - Quadrangle Ac-H-6 'Haulani' is one of five quadrangles that cover the equatorial region of the dwarf planet Ceres. This quadrangle is notable for the high albedo (bright) ejecta that extend around crater Haulani, which gives the name to the quadrangle. In Dawn's Framing Camera (FC) color-ratio composite images, crater Haulani is clearly distinct compared to surrounding terrains. Haulani's bright material displays a very small or even negative ('blue') spectral slope in the range from the visible to the near infrared, which is a peculiar occurrence compared to rest of the quadrangle and more generally to the average surface of Ceres. Hyperspectral images returned by the Visible and InfraRed (VIR) mapping spectrometer onboard Dawn enabled a careful mineralogical analysis of the Haulani quadrangle. In the High-Altitude Mapping Orbit HAMO phase, yielding an average pixel resolution of approximately 0.38 km, VIR obtained nearly global coverage of quadrangle Ac-H-6. Based on this dataset, crater Haulani also stands out compared to the rest of the quadrangle. The spectral features centered at 2.7 and 3.06 mu m, respectively indicative of the presence of hydrous minerals and ammoniated phyllosilicates, show a decrease of band depth in the floor and in Haulani's bright ejecta, corresponding to the blue spectral slope. Similar, but less prominent, spectral behavior, is observed in other small craters found within this quadrangle. JF - Abstracts with Programs - Geological Society of America AU - Tosi, Federico AU - Carrozzo, Filippo Giacomo AU - Zambon, Francesca AU - Ciarniello, Mauro AU - Combe, Jean-Philippe AU - De Sanctis, Maria Cristina AU - Hoffmann, Martin AU - Longobardo, Andrea AU - Nathues, Andreas AU - Raponi, Andrea AU - Ammannito, Eleonora AU - Krohn, Katrin AU - McFadden, Lucy AU - Pieters, Carle M AU - Stephan, Katrin AU - Russell, Christopher T AU - Raymond, Carol A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 166 EP - 6 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1863567853?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mineralogical+analysis+of+the+Haulani+quadrangle+on+the+dwarf+planet+Ceres&rft.au=Tosi%2C+Federico%3BCarrozzo%2C+Filippo+Giacomo%3BZambon%2C+Francesca%3BCiarniello%2C+Mauro%3BCombe%2C+Jean-Philippe%3BDe+Sanctis%2C+Maria+Cristina%3BHoffmann%2C+Martin%3BLongobardo%2C+Andrea%3BNathues%2C+Andreas%3BRaponi%2C+Andrea%3BAmmannito%2C+Eleonora%3BKrohn%2C+Katrin%3BMcFadden%2C+Lucy%3BPieters%2C+Carle+M%3BStephan%2C+Katrin%3BRussell%2C+Christopher+T%3BRaymond%2C+Carol+A%3BAnonymous&rft.aulast=Tosi&rft.aufirst=Federico&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-02-02 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Mineralogy of Rongo quandrangle on Ceres AN - 1863567699; 2017-007695 AB - After more than one year orbit around Ceres, Dawn spacecraft covered large part of its surface, allowing for a global mineralogical mapping of the entire surface. For mapping purposes, likewise for Vesta, also Ceres' surface has been divided in 15 quadrangles. Here we describe the quadrangle Ac-H-10 Rongo located in the equatorial region (288 degrees -360 degrees E, 22S-22N) of Ceres. VIR, the visible and infrared spectrometer onboard Dawn, acquired data at different spatial resolutions, allowing for identify the various mineralogical phases characteristic of Ceres surface, at global and local scale. Ceres spectra present several bands in the spectral region between 2.5 and 4-mu m. Spectral parameters retrieved by VIR data indicate a widespread distribution of NH4-phyllosilicates, and OH-rich clays. Rongo quadrangle contains about five geological units, not always associated with mineralogical variations. The depth of the 3.1-mu m band, due to the presence of NH4-Phyllosicates, is quite homogeneous except for some localized regions in which this band appear shallower, and a similar trend is observed for the OH-signature at 2.7-mu m. The dominant feature of this quadrangle is Ahuna Mons, a unique case on Ceres. Ahuna Mons is the largest mountain of the dwarf planet, and conversely to other geological units, shows a spectral parameters variation with respect to other areas, linked to mineralogical differences. JF - Abstracts with Programs - Geological Society of America AU - Zambon, Francesca AU - Carrozzo, Filippo Giacomo AU - Tosi, Federico AU - Ciarniello, Mauro AU - Combe, Jean-Philippe AU - De Sanctis, Maria Cristina AU - Ammannito, Eleonora AU - Longobardo, Andrea AU - Raponi, Andrea AU - Palomba, Ernesto AU - McFadden, Lucy A AU - Platz, Thomas AU - Stephan, Katrin AU - Krohn, Katrin AU - Frigeri, Alessandro AU - Russell, Christopher T AU - Raymond, Carol A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 166 EP - 9 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1863567699?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mineralogy+of+Rongo+quandrangle+on+Ceres&rft.au=Zambon%2C+Francesca%3BCarrozzo%2C+Filippo+Giacomo%3BTosi%2C+Federico%3BCiarniello%2C+Mauro%3BCombe%2C+Jean-Philippe%3BDe+Sanctis%2C+Maria+Cristina%3BAmmannito%2C+Eleonora%3BLongobardo%2C+Andrea%3BRaponi%2C+Andrea%3BPalomba%2C+Ernesto%3BMcFadden%2C+Lucy+A%3BPlatz%2C+Thomas%3BStephan%2C+Katrin%3BKrohn%2C+Katrin%3BFrigeri%2C+Alessandro%3BRussell%2C+Christopher+T%3BRaymond%2C+Carol+A%3BAnonymous&rft.aulast=Zambon&rft.aufirst=Francesca&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-02-02 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Exposed H (sub 2) O-rich areas detected on Ceres with Dawn visible and infrared mapping spectrometer AN - 1863567696; 2017-007687 AB - H2O-rich materials are exposed at the surface of Ceres as discovered from VIR spectra of the Dawn mission. Oxo crater exhibits the most diagnostic absorption bands of the H2O molecule at 1.65 and 1.28 mu m. These features exist in at least four other locations, and they are consistent with H2O ice mixed with low-albedo components. Spectra of mineral hydrates such as salts are also characterized by H2O absorption overtones, however they do not fit VIR observations as well as H2O ice spectra. In order to further constrain the composition, the thermophysical and chemical stability of exposed H2O-rich compounds on Ceres and results from chemical models of Ceres interior are being investigated. One meter of pure H2O ice exposed to direct sunlight would sublimate within a few tens of years. The sublimation of a H2O ice-cemented regolith would leave a low-albedo lag deposit that would also decrease detectability over time. All the reported H2O exposures occur at latitudes higher than 30 degrees N in fresh craters near rim shadows, have surface area <3 km2, and relatively high albedo. The exposed H2O ice that is observed by VIR is likely due to a recent impact or a landslide. In some occurrences, high-albedo materials observed within these shadows by the Framing Camera (FC) are contiguous to the observed H2O; several of them could be in permanently shadowed regions. The surface shape model and history of illumination shall indicate whether these areas could be cold traps where H2O ice could be preserved from sublimation. JF - Abstracts with Programs - Geological Society of America AU - Combe, Jean-Philippe AU - Raponi, Andrea AU - McCord, Thomas B AU - Tosi, Federico AU - De Sanctis, Maria Cristina AU - Ammannito, Eleonora AU - Byrne, Shane AU - Carrozzo, Filippo Giacomo AU - Hayne, Paul O AU - Hughson, Kynan H G AU - Johnson, Katherine E AU - Landis, Margaret E AU - Pieters, Carle M AU - Mazarico, Erwan AU - Ruesch, Ottaviano AU - Singh, Sandeep AU - Zambon, Francesca AU - Raymond, Carol A AU - Russell, Christopher T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 166 EP - 1 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1863567696?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Exposed+H+%28sub+2%29+O-rich+areas+detected+on+Ceres+with+Dawn+visible+and+infrared+mapping+spectrometer&rft.au=Combe%2C+Jean-Philippe%3BRaponi%2C+Andrea%3BMcCord%2C+Thomas+B%3BTosi%2C+Federico%3BDe+Sanctis%2C+Maria+Cristina%3BAmmannito%2C+Eleonora%3BByrne%2C+Shane%3BCarrozzo%2C+Filippo+Giacomo%3BHayne%2C+Paul+O%3BHughson%2C+Kynan+H+G%3BJohnson%2C+Katherine+E%3BLandis%2C+Margaret+E%3BPieters%2C+Carle+M%3BMazarico%2C+Erwan%3BRuesch%2C+Ottaviano%3BSingh%2C+Sandeep%3BZambon%2C+Francesca%3BRaymond%2C+Carol+A%3BRussell%2C+Christopher+T%3BAnonymous&rft.aulast=Combe&rft.aufirst=Jean-Philippe&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-02-02 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Mineralogical mapping of the Occator quadrangle AN - 1863567636; 2017-007694 AB - The NASA's Dawn spacecraft orbited Ceres for more than one year, observing almost entirely its surface by means of the hyperspectral images provided from the Visible and Infrared (VIR) spectrometer and from the Framing Camera (FC). This work is focused on the mineralogical mapping of the Occator quadrangle, extending at latitudes from 22 degrees S to 22 degrees N and at longitudes from 214 degrees E to 288 degrees E. Mapping is based on VIR spectral data, in particular albedo at visible and infrared wavelengths, and depth of the bands at 2.7 um (due to OH), 3.05 um (due to NH4), at 3.4 um and 3.9 um (due to carbonates), as well on Ceres' shape model. The most peculiar feature of the quadrangle is the Occator crater, the brightest feature of the whole Ceres surface, presenting very shallow 2.7 and 3.05 um band with respect to the surroundings and very deep 3.4 and 3.9 um bands: this indicates a carbonates enrichment and a depletion of ammoniated phyllosilicates. On the contrary, the Occator ejecta are very dark and show very deep OH and NH4 bands. The Lociyo crater also show a low albedo, and ammoniated phyllosilicates bands deeper than surroundings, whereas the opposite behavior (larger albedo a shallow bands) is observed on the Azacca crater. A comparison between geological and mineralogical mapping is also part of this work, aimed at identifying possible correlations between composition and geological context. JF - Abstracts with Programs - Geological Society of America AU - Longobardo, Andrea AU - Palomba, Ernesto AU - De Sanctis, Maria Cristina AU - Buczkowski, Debra AU - Carrozzo, Filippo Giacomo AU - Galiano, Anna AU - Tosi, Federico AU - Zambon, Francesca AU - Raponi, Andrea AU - Ciarniello, Mauro AU - Ammannito, Eleonora AU - Stephan, Katrin AU - McFadden, Lucy A AU - Frigeri, Alessandro AU - Capria, Maria Teresa AU - Fonte, Sergio AU - Giardino, Marco AU - Raymond, Carol A AU - Russell, Christopher T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 166 EP - 8 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1863567636?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mineralogical+mapping+of+the+Occator+quadrangle&rft.au=Longobardo%2C+Andrea%3BPalomba%2C+Ernesto%3BDe+Sanctis%2C+Maria+Cristina%3BBuczkowski%2C+Debra%3BCarrozzo%2C+Filippo+Giacomo%3BGaliano%2C+Anna%3BTosi%2C+Federico%3BZambon%2C+Francesca%3BRaponi%2C+Andrea%3BCiarniello%2C+Mauro%3BAmmannito%2C+Eleonora%3BStephan%2C+Katrin%3BMcFadden%2C+Lucy+A%3BFrigeri%2C+Alessandro%3BCapria%2C+Maria+Teresa%3BFonte%2C+Sergio%3BGiardino%2C+Marco%3BRaymond%2C+Carol+A%3BRussell%2C+Christopher+T%3BAnonymous&rft.aulast=Longobardo&rft.aufirst=Andrea&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-02-02 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Mineralogy of Ceres' Fejokoo (Ac-5) quadrangle AN - 1863567508; 2017-007691 AB - The Dawn spacecraft orbited the dwarf planet Ceres beginning March 2015, mapping the planet with a framing camera (FC), visible and infrared spectrometer (VIR) and gamma-ray and neutron detector (GRaND). We examine the spectral reflectance of surface features in the Fejokoo quadrangle located within 21-66 degrees N and 270-360 degrees E, and address the following scientific questions: 1. What is the surface composition in this quadrangle? 2. How does it compare to the global composition of Ceres? 3. Is there a correlation between morphological features and surface composition? 4. What are the implications for the formation and evolution of Ceres' surface? Hughson et al. (2016, in prep) describe the terrain in Fejokoo as highly cratered and it is suitably termed ancient. The largest crater, Fejokoo, is hexagonal in habit and 68 km mean diameter. Topography reveals six tholi that are approximately 20 X20 km in lateral extent and approximately 3 km high. Our analysis focuses on data returned from VIR and displayed as spectral parameter maps and ortho-rectified FC images comprising controlled photomosaics of Ceres. The spectral reflectance and significant spectral parameters are largely uniform across the region and consist of a relatively flat spectrum between 0.5-2.6 mu m, a UV absorption edge shortward of 0.4 microns and a complex of near-IR absorptions that represent a mixture of ammoniated phyllosilicate, carbonates and a spectrally dark component that cannot be specifically identified. The crater Oxo stands out by the additional presence of water ice features and at least five other small, bright spots show spectral variations from surrounding material of varying compositional significance. Ceres surface has been uniformly covered with dark clays and carbonates while exposure of materials from beneath the top-coating layer, at discrete locations have different spectral parameters and thus variable composition. JF - Abstracts with Programs - Geological Society of America AU - McFadden, Lucy A AU - Zambon, Francesca AU - Ciarniello, Mauro AU - Carrozzo, Filippo Giacomo AU - Combe, Jean-Philippe AU - Ammannito, Eleonora AU - De Sanctis, Maria Cristina AU - Ruesch, Ottaviano AU - Stephan, Katrin AU - Hughson, Kynan H G AU - Longobardo, Andrea AU - Tosi, Federico AU - Raymond, Carol A AU - Russell, Christopher T AU - Singh, Sandeep AU - Fonte, Sergio AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 166 EP - 5 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1863567508?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mineralogy+of+Ceres%27+Fejokoo+%28Ac-5%29+quadrangle&rft.au=McFadden%2C+Lucy+A%3BZambon%2C+Francesca%3BCiarniello%2C+Mauro%3BCarrozzo%2C+Filippo+Giacomo%3BCombe%2C+Jean-Philippe%3BAmmannito%2C+Eleonora%3BDe+Sanctis%2C+Maria+Cristina%3BRuesch%2C+Ottaviano%3BStephan%2C+Katrin%3BHughson%2C+Kynan+H+G%3BLongobardo%2C+Andrea%3BTosi%2C+Federico%3BRaymond%2C+Carol+A%3BRussell%2C+Christopher+T%3BSingh%2C+Sandeep%3BFonte%2C+Sergio%3BAnonymous&rft.aulast=McFadden&rft.aufirst=Lucy&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-02-02 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Composition of the Urvara-Yalode region on Ceres AN - 1863567144; 2017-007697 AB - We present here the first results of the mineralogical mapping of the Urvara and Yalode quadrangles on Ceres. These two quadrangles define a region in the southern hemisphere between latitudes 20 degrees S and 65 degrees S and longitudes 180 degrees E and 360 degrees E. The mineralogical mapping is mainly based on the acquisitions made by the spectrometer VIR. The morphology of this region is dominated by the two impact craters Urvara (45 degrees S and 249 degrees E, diam: 170 Km) and Yalode (42 degrees S and 292 degrees E, diam: 260 Km). The catenae here present (Gerber, Pongal and Baltay) seem to be associated with the formation these impacts. The northern part is dominated by smooth material while the southern is more cratered. As noted for the global maps, also in this region the chemical composition of phyllosilicate is uniform while their abundance varies. The element that seems to be of particular interest is a positive anomaly in the presence of NH4 phyllosilicates within Urvara which, together with Dantu, has the highest concentration of ammoniated clays on the surface of Ceres. We discuss here the correlation of the composition with the morphology, topography to understand the origin of this NH4 rich location. JF - Abstracts with Programs - Geological Society of America AU - Ammannito, Eleonora AU - De Sanctis, Maria Cristina AU - Carrozzo, Filippo Giacomo AU - Zambon, Francesca AU - Ciarniello, Mauro AU - Combe, Jean-Philippe AU - Frigeri, Alessandro AU - Longobardo, Andrea AU - Raponi, Andrea AU - Tosi, Federico AU - Fonte, Sergio AU - Giardino, Marco AU - McFadden, Lucy A AU - Palomba, Ernesto AU - Stephan, Katrin AU - Raymond, Carol A AU - Russell, Christopher T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 166 EP - 11 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1863567144?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Composition+of+the+Urvara-Yalode+region+on+Ceres&rft.au=Ammannito%2C+Eleonora%3BDe+Sanctis%2C+Maria+Cristina%3BCarrozzo%2C+Filippo+Giacomo%3BZambon%2C+Francesca%3BCiarniello%2C+Mauro%3BCombe%2C+Jean-Philippe%3BFrigeri%2C+Alessandro%3BLongobardo%2C+Andrea%3BRaponi%2C+Andrea%3BTosi%2C+Federico%3BFonte%2C+Sergio%3BGiardino%2C+Marco%3BMcFadden%2C+Lucy+A%3BPalomba%2C+Ernesto%3BStephan%2C+Katrin%3BRaymond%2C+Carol+A%3BRussell%2C+Christopher+T%3BAnonymous&rft.aulast=Ammannito&rft.aufirst=Eleonora&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-02-02 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Spectral investigation of quadrangle Ac3 of the dwarf planet Ceres; the region of impact crater Dantu AN - 1863566974; 2017-007689 AB - The 126 km large impact crater Dantu and its ejecta blankets dominate major part of quadrangle 3 (Ac3) of dwarf planet Ceres, which is located between 21-66 degrees N and 90-180 degrees E in a large depression north of the impact basin Kerwan. A detailed analysis of the surface composition of this area is performed based on data acquired by the Framing Camera (FC) and the Visible and Infrared Spectrometer (VIR) of the Dawn spacecraft. Key topics of our spectral investigation are the detailed characterization of the Dantu crater in combination with its complex geology and topography presented and the influence of this impact event on the spectral properties of the entire region. We discuss the origin of Dantu's spectral properties, which appear to be unique compared to other large impact features on Ceres and its connection to the extended region of neither blue nor red material on Ceres. JF - Abstracts with Programs - Geological Society of America AU - Stephan, Katrin AU - Jaumann, Ralf AU - Kneissl, Thomas AU - Zambon, Francesca AU - Carrozzo, Fillipo Giacomo AU - Krohn, Katrin AU - Kallisch, Jan AU - Longobardo, Andrea AU - Palomba, Ernesto AU - McFadden, Lucy A AU - Combe, Jean-Philippe AU - Tosi, Federico AU - Ammannito, Eleonora AU - De Sanctis, Maria Cristina AU - Roatsch, Thomas AU - Preusker, Frank AU - Nathues, Andreas AU - Raymond, Carol A AU - Russell, Christopher T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 166 EP - 3 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1863566974?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Spectral+investigation+of+quadrangle+Ac3+of+the+dwarf+planet+Ceres%3B+the+region+of+impact+crater+Dantu&rft.au=Stephan%2C+Katrin%3BJaumann%2C+Ralf%3BKneissl%2C+Thomas%3BZambon%2C+Francesca%3BCarrozzo%2C+Fillipo+Giacomo%3BKrohn%2C+Katrin%3BKallisch%2C+Jan%3BLongobardo%2C+Andrea%3BPalomba%2C+Ernesto%3BMcFadden%2C+Lucy+A%3BCombe%2C+Jean-Philippe%3BTosi%2C+Federico%3BAmmannito%2C+Eleonora%3BDe+Sanctis%2C+Maria+Cristina%3BRoatsch%2C+Thomas%3BPreusker%2C+Frank%3BNathues%2C+Andreas%3BRaymond%2C+Carol+A%3BRussell%2C+Christopher+T%3BAnonymous&rft.aulast=Stephan&rft.aufirst=Katrin&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-02-02 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Geological mapping of Pluto and charon using new horizons data AN - 1861113570; 788209-10 AB - Pluto and Charon exhibit strikingly different surface appearances, despite their similar densities and presumed bulk compositions. Systematic mapping has revealed that much of Pluto's surface can be attributed to surface-atmosphere interactions and the mobilization of volatile ices by insolation. Many mapped valley systems appear to be the consequence of glaciation involving nitrogen ice. Other geological activity requires or required internal heating. The convection and advection of volatile ices in Sputnik Planum can be powered by present-day radiogenic heat loss. On the other hand, the prominent mountains at the western margin of Sputnik Planum, and the strange, multi-km-high mound features to the south, probably composed of H2O, are young geologically as inferred by light cratering and superposition relationships. Their origin, and what drove their formation so late in Solar System history, is under investigation. The dynamic remolding of landscapes by volatile transport seen on Pluto is not unambiguously evident in the mapping of Charon. Charon does, however, display a large resurfaced plain and globally engirdling extensional tectonic network attesting to its early endogenic vigor. JF - The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences = Internationales Archiv fuer Photogrammetrie, Fernerkundung und Raumbezogene Informationswissenschaften = Archives Internationales des Sciences de la Photogrammetrie, de la Teledetection et de l'Information Spatiale AU - Moore, J M AU - Spencer, J R AU - McKinnon, W B AU - Howard, A D AU - White, O M AU - Umurhan, O M AU - Schenk, P M AU - Beyer, R A AU - Singer, K AU - Stern, S A AU - Weaver, H A AU - Young, L A AU - Smith, K Ennico AU - Olkin, C AU - Team, New Horizons Geology and Geophysics Imaging Y1 - 2016 PY - 2016 DA - 2016 SP - 449 EP - 451 PB - International Society for Photogrammetry and Remote Sensing (ISPRS) Council, [London] VL - XLI-B4 SN - 1682-1750, 1682-1750 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861113570?accountid=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=The+International+Archives+of+the+Photogrammetry%2C+Remote+Sensing+and+Spatial+Information+Sciences+%3D+Internationales+Archiv+fuer+Photogrammetrie%2C+Fernerkundung+und+Raumbezogene+Informationswissenschaften+%3D+Archives+Internationales+des+Sciences+de+la+Photogrammetrie%2C+de+la+Teledetection+et+de+l%27Information+Spatiale&rft.atitle=Geological+mapping+of+Pluto+and+charon+using+new+horizons+data&rft.au=Moore%2C+J+M%3BSpencer%2C+J+R%3BMcKinnon%2C+W+B%3BHoward%2C+A+D%3BWhite%2C+O+M%3BUmurhan%2C+O+M%3BSchenk%2C+P+M%3BBeyer%2C+R+A%3BSinger%2C+K%3BStern%2C+S+A%3BWeaver%2C+H+A%3BYoung%2C+L+A%3BSmith%2C+K+Ennico%3BOlkin%2C+C%3BTeam%2C+New+Horizons+Geology+and+Geophysics+Imaging&rft.aulast=Moore&rft.aufirst=J&rft.date=2016-01-01&rft.volume=XLI-B4&rft.issue=&rft.spage=449&rft.isbn=&rft.btitle=&rft.title=The+International+Archives+of+the+Photogrammetry%2C+Remote+Sensing+and+Spatial+Information+Sciences+%3D+Internationales+Archiv+fuer+Photogrammetrie%2C+Fernerkundung+und+Raumbezogene+Informationswissenschaften+%3D+Archives+Internationales+des+Sciences+de+la+Photogrammetrie%2C+de+la+Teledetection+et+de+l%27Information+Spatiale&rft.issn=16821750&rft_id=info:doi/ L2 - http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLI-B4/449/2016/isprs-archives-XLI-B4-449-2016.pdf http://www.isprs.org/publications/archives.aspx 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 Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Topographic mapping of Pluto and charon using new horizons data AN - 1861113411; 788209-13 AB - New Horizons 2015 flyby of the Pluto system has resulted in high-resolution topographic maps of Pluto and Charon, the most distant objects so mapped. DEM's over approximately 30% of each object were produced at 100-300 m vertical and 300-800 m spatial resolutions, in hemispheric maps and high-resolution linear mosaics. Both objects reveal more relief than was observed at Triton. The dominant 800-km wide informally named Sputnik Planum bright ice deposit on Pluto lies in a broad depression 3 km deep, flanked by dispersed mountains 3-5 km high. Impact craters reveal a wide variety of preservation states from pristine to eroded, and long fractures are several km deep with throw of 0-2 km. Topography of this magnitude suggests the icy shell of Pluto is relatively cold and rigid. Charon has global relief of at least 10 km, including ridges of 2-3 km and troughs of 3-5 km of relief. Impact craters are up to 6 km deep. Vulcan Planum consists of rolling plains and forms a topographic moat along its edge, suggesting viscous flow. JF - The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences = Internationales Archiv fuer Photogrammetrie, Fernerkundung und Raumbezogene Informationswissenschaften = Archives Internationales des Sciences de la Photogrammetrie, de la Teledetection et de l'Information Spatiale AU - Schenk, P M AU - Beyer, R A AU - Moore, J M AU - Spencer, J R AU - McKinnon, W B AU - Howard, A D AU - White, O M AU - Umurhan, O M AU - Singer, K AU - Stern, S A AU - Weaver, H A AU - Young, L A AU - Smith, K Ennico AU - Olkin, C AU - Team, New Horizons Geology and Geophysics Imaging Y1 - 2016 PY - 2016 DA - 2016 SP - 487 EP - 489 PB - International Society for Photogrammetry and Remote Sensing (ISPRS) Council, [London] VL - XLI-B4 SN - 1682-1750, 1682-1750 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861113411?accountid=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=The+International+Archives+of+the+Photogrammetry%2C+Remote+Sensing+and+Spatial+Information+Sciences+%3D+Internationales+Archiv+fuer+Photogrammetrie%2C+Fernerkundung+und+Raumbezogene+Informationswissenschaften+%3D+Archives+Internationales+des+Sciences+de+la+Photogrammetrie%2C+de+la+Teledetection+et+de+l%27Information+Spatiale&rft.atitle=Topographic+mapping+of+Pluto+and+charon+using+new+horizons+data&rft.au=Schenk%2C+P+M%3BBeyer%2C+R+A%3BMoore%2C+J+M%3BSpencer%2C+J+R%3BMcKinnon%2C+W+B%3BHoward%2C+A+D%3BWhite%2C+O+M%3BUmurhan%2C+O+M%3BSinger%2C+K%3BStern%2C+S+A%3BWeaver%2C+H+A%3BYoung%2C+L+A%3BSmith%2C+K+Ennico%3BOlkin%2C+C%3BTeam%2C+New+Horizons+Geology+and+Geophysics+Imaging&rft.aulast=Schenk&rft.aufirst=P&rft.date=2016-01-01&rft.volume=XLI-B4&rft.issue=&rft.spage=487&rft.isbn=&rft.btitle=&rft.title=The+International+Archives+of+the+Photogrammetry%2C+Remote+Sensing+and+Spatial+Information+Sciences+%3D+Internationales+Archiv+fuer+Photogrammetrie%2C+Fernerkundung+und+Raumbezogene+Informationswissenschaften+%3D+Archives+Internationales+des+Sciences+de+la+Photogrammetrie%2C+de+la+Teledetection+et+de+l%27Information+Spatiale&rft.issn=16821750&rft_id=info:doi/ L2 - http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLI-B4/487/2016/isprs-archives-XLI-B4-487-2016.pdf http://www.isprs.org/publications/archives.aspx 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 Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Xeropreservation of functionalized lipid biomarkers in hyperarid soils in the Atacama Desert, Chile AN - 1861113089; 782780-13 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Wilhelm, Mary Beth AU - Davila, Alfonso F AU - Eigenbrode, Jennifer L AU - Parenteau, Mary N AU - Jahnke, Linda L AU - Liu, Xiaolei AU - Summons, Roger E AU - Stamos, Brian N AU - Wray, James J AU - O'Reilly, Shane S AU - Williams, Amy AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 3413 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861113089?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Xeropreservation+of+functionalized+lipid+biomarkers+in+hyperarid+soils+in+the+Atacama+Desert%2C+Chile&rft.au=Wilhelm%2C+Mary+Beth%3BDavila%2C+Alfonso+F%3BEigenbrode%2C+Jennifer+L%3BParenteau%2C+Mary+N%3BJahnke%2C+Linda+L%3BLiu%2C+Xiaolei%3BSummons%2C+Roger+E%3BStamos%2C+Brian+N%3BWray%2C+James+J%3BO%27Reilly%2C+Shane+S%3BWilliams%2C+Amy%3BAnonymous&rft.aulast=Wilhelm&rft.aufirst=Mary&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=3413&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/3413.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - Catalysis in low-temperature geochemical process: a key to the sedimentary dolomite enigma AN - 1861112916; 782780-83 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Xu, Huifang AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 3483 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861112916?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Catalysis+in+low-temperature+geochemical+process%3A+a+key+to+the+sedimentary+dolomite+enigma&rft.au=Xu%2C+Huifang%3BAnonymous&rft.aulast=Xu&rft.aufirst=Huifang&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=3483&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/3483.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - Geochemical Cycling of Fe, S, C, N, Mo in the 3.2 Ga Ocean: Constraints from DXCL-DP black shales AN - 1861112486; 782781-20 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Yamaguchi, K E AU - Kobayashi, Y AU - Shena, A AU - Kobayashi, D AU - Fujita, S AU - Nagashima, A AU - Sakamoto, R AU - Naraoka, H AU - Yamagata, Y AU - Hirata, T AU - Ikehara, M AU - Ito, T AU - Kiyokawa, S AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 3520 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861112486?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Geochemical+Cycling+of+Fe%2C+S%2C+C%2C+N%2C+Mo+in+the+3.2+Ga+Ocean%3A+Constraints+from+DXCL-DP+black+shales&rft.au=Yamaguchi%2C+K+E%3BKobayashi%2C+Y%3BShena%2C+A%3BKobayashi%2C+D%3BFujita%2C+S%3BNagashima%2C+A%3BSakamoto%2C+R%3BNaraoka%2C+H%3BYamagata%2C+Y%3BHirata%2C+T%3BIkehara%2C+M%3BIto%2C+T%3BKiyokawa%2C+S%3BAnonymous&rft.aulast=Yamaguchi&rft.aufirst=K&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=3520&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/3520.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - Petrography, Geochemistry, and Pairing Relationships of Lunar Meteorite Miller Range 13317 AN - 1861112465; 782782-58 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Zeigler, Ryan A AU - Korotev, Randy L AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 3658 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861112465?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Petrography%2C+Geochemistry%2C+and+Pairing+Relationships+of+Lunar+Meteorite+Miller+Range+13317&rft.au=Zeigler%2C+Ryan+A%3BKorotev%2C+Randy+L%3BAnonymous&rft.aulast=Zeigler&rft.aufirst=Ryan&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=3658&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/3658.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - Making Mercury's Core with Light Elements AN - 1861112436; 782778-50 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Kaaden, Kathleen E Vander AU - Mccubbin, Francis M AU - Ross, D Kent AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 3250 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861112436?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Making+Mercury%27s+Core+with+Light+Elements&rft.au=Kaaden%2C+Kathleen+E+Vander%3BMccubbin%2C+Francis+M%3BRoss%2C+D+Kent%3BAnonymous&rft.aulast=Kaaden&rft.aufirst=Kathleen+E&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=3250&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/3250.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - Increasing summer net CO2 uptake in high northern ecosystems on land AN - 1861112425; 782779-97 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Welp, Lisa R AU - Patra, Prabir K AU - Roedenbeck, Christian AU - Nemani, Ramakrishna AU - Bi, Jian AU - Piper, Stephen C AU - Keeling, Ralph F AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 3397 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861112425?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Increasing+summer+net+CO2+uptake+in+high+northern+ecosystems+on+land&rft.au=Welp%2C+Lisa+R%3BPatra%2C+Prabir+K%3BRoedenbeck%2C+Christian%3BNemani%2C+Ramakrishna%3BBi%2C+Jian%3BPiper%2C+Stephen+C%3BKeeling%2C+Ralph+F%3BAnonymous&rft.aulast=Welp&rft.aufirst=Lisa&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=3397&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/3397.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - Geochemistry of 2.7Ga shallow-facies shales in stromatolitic carbonates (ABDP ) from Pilbara, Western Australia AN - 1861112423; 782777-47 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Tomiuka, T AU - Yamaguchi, K E AU - Naraoka, H AU - Abe, G AU - Yamaguchi, A AU - Nedachi, M AU - Ikehara, M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 3147 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861112423?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Geochemistry+of+2.7Ga+shallow-facies+shales+in+stromatolitic+carbonates+%28ABDP+%29+from+Pilbara%2C+Western+Australia&rft.au=Tomiuka%2C+T%3BYamaguchi%2C+K+E%3BNaraoka%2C+H%3BAbe%2C+G%3BYamaguchi%2C+A%3BNedachi%2C+M%3BIkehara%2C+M%3BAnonymous&rft.aulast=Tomiuka&rft.aufirst=T&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=3147&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/3147.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - Evidence for a heterogeneous distribution of water in the Martian interior AN - 1861111428; 787344-17 AB - The abundance and distribution of H (sub 2) O within the terrestrial planets, as well as its timing of delivery, is a topic of vital importance for understanding the chemical and physical evolution of planets and their potential for hosting habitable environments. Analysis of planetary materials from Mars, the Moon, and the eucrite parent body (i.e., asteroid 4Vesta) have confirmed the presence of H (sub 2) O within their interiors. Moreover, H and N isotopic data from these planetary materials suggests H (sub 2) O was delivered to the inner solar system very early from a common source, similar in composition to the carbonaceous chondrites. Despite the ubiquity of H (sub 2) O in the inner Solar System, the only destination with any prospects for past or present habitable environments at this time, outside of the Earth, is Mars. Although the presence of H (sub 2) O within the martian interior has been confirmed, very little is known regarding its abundance and distribution within the martian interior and how the martian water inventory has changed over time. By combining new analyses of martian apatites within a large number of martian meteorite types with previously published volatile data and recently determined mineral-melt partition coefficients for apatite, we report new insights into the abundance and distribution of volatiles in the martian crust and mantle. Using the subset of samples that did not exhibit crustal contamination, we determined that the enriched shergottite mantle source has 36-73 ppm H (sub 2) O and the depleted shergottite mantle source has 14-23 ppm H (sub 2) O. This result is consistent with other observed geochemical differences between enriched and depleted shergottites and supports the idea that there are at least two geochemically distinct reservoirs in the martian mantle. We also estimated the H (sub 2) O content of the martian crust using the revised mantle H (sub 2) O abundances and a known crust-mantle distributions of incompatible lithophile elements. We determined that the bulk martian crust has approximately 1400 ppm H (sub 2) O, which is likely distributed toward the martian surface. This crustal water abundance would equate to a global equivalent layer (GEL) of water at a depth of approximately 229 m, which can account for at least some of the surface features on Mars attributed to flowing water and may be sufficient to support the past presence of a shallow sea on Mars' surface. JF - Abstracts with Programs - Geological Society of America AU - McCubbin, Francis AU - Boyce, Jeremy W AU - Srinivasan, Poorna AU - Santos, Alison R AU - Elardo, Stephen M AU - Filiberto, Justin AU - Steele, Andrew AU - Shearer, Charles K AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 49 EP - 10 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861111428?accountid=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+with+Programs+-+Geological+Society+of+America&rft.atitle=Evidence+for+a+heterogeneous+distribution+of+water+in+the+Martian+interior&rft.au=McCubbin%2C+Francis%3BBoyce%2C+Jeremy+W%3BSrinivasan%2C+Poorna%3BSantos%2C+Alison+R%3BElardo%2C+Stephen+M%3BFiliberto%2C+Justin%3BSteele%2C+Andrew%3BShearer%2C+Charles+K%3BAnonymous&rft.aulast=McCubbin&rft.aufirst=Francis&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition 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 the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Exploring lava tubes with LiDAR in Idaho and Hawai'i AN - 1861110703; 787345-11 AB - We have started to document lava tubes in 3D using LiDAR during our field campaigns in Idaho and Hawai'i. Tube dimensions and the variety of textures that reveal various flow processes have traditionally been mapped in 2D planar and cross-sectional views. A key advantage of LiDAR is that it captures details of the lava tube morphology from kilometer to centimeter scales in a single data set. Contextual views display tube morphology relative to surface topography, while close-up views of the interior show the distribution of flows and rubble on the floor, the morphology and orientation of side tubes, and intricate textures on the walls and ceiling, including lava stalactites. Between 2014 and 2016, we used a Riegl Vz-400 terrestrial laser scanner to document two lava tubes in Idaho and Hawai'i. This LiDAR is a near-infrared, vertical line scanner with a nominal range of 450 m. A Nikon DSLR camera and Trimble R8 differential global positioning system (DGPS) mounted on top of the LiDAR add true color overlay and georeferencing. In Idaho, we completed 22 scans along 250 m of the Indian Tunnel lava tube at Craters of the Moon National Monument and Preserve. In Hawai'i, we completed 65 scans along 400 m of a lava tube on the northern flank of Mauna Loa. Our field methods optimize the capabilities of our instrument. We collected 2-3 scans around the rim of each skylight to capture a portion of the tube interior and the surface with precise positioning from the DGPS. We then registered uncontrolled scans of the tube interior to these controlled scans during post-processing by matching features and reflecting targets placed within the lava tube. Inside the tube, we positioned the LiDAR in spots to best capture the general morphology and flow textures. However, data gaps occur above and below the scan positions. These are minimized by overlapping data from adjacent scans. LiDAR has not been used extensively to study lava tubes, so we plan to document additional lava tubes at each site to show the spatial relationships of multiple lava tubes in 3D and refine our techniques for this style of lava tube mapping. LiDAR data also complements other datasets like ground penetrating radar and magnetics, as well as traditional 2D mapping, providing a new type of data set to inform our understanding of lava tube processes. JF - Abstracts with Programs - Geological Society of America AU - Garry, W Brent AU - Whelley, Patrick AU - Rowland, Scott K AU - Hughes, Scott S AU - Shiro, Brian AU - Kobs Nawotniak, Shannon AU - Bleacher, Jacob E AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 56 EP - 13 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861110703?accountid=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+with+Programs+-+Geological+Society+of+America&rft.atitle=Exploring+lava+tubes+with+LiDAR+in+Idaho+and+Hawai%27i&rft.au=Garry%2C+W+Brent%3BWhelley%2C+Patrick%3BRowland%2C+Scott+K%3BHughes%2C+Scott+S%3BShiro%2C+Brian%3BKobs+Nawotniak%2C+Shannon%3BBleacher%2C+Jacob+E%3BAnonymous&rft.aulast=Garry&rft.aufirst=W&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition 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 the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Stratigraphic dependence of chlorine isotope values in Gale Crater AN - 1861110701; 787344-20 AB - Chlorine isotope ratios have been measured on HCl released during evolved gas analysis (EGA) of drilled rock and scooped soil samples using the Sample Analysis at Mars (SAM) instrument on board the Curiosity rover. The source of HCl is thought to be oxychlorines, such as perchlorate, but chloride salts are also a possibility. Previous work revealed delta (super 37) Cl values in Gale crater that are exceptionally light and more variable than any other measured material in the solar system (Farley et al., 2016), observations tentatively attributed to the unusual behavior of Cl isotopes in oxychlorine compounds. New analyses sampling bedrock and a sand dune have been acquired as Curiosity ascends Mount Sharp. These new data reveal a statistically significant correlation between stratigraphic height and delta (super 37) Cl in the fluvio-lacustrine sedimentary rocks above the Bradbury landing site. Starting in the Kimberly formation (-58+ or -3 ppm), rising through the Murray formation (-49+ or -8 ppm to - 31+ or -9 ppm) and ending in the altered Stimson unit (-25+ or -5 ppm), a monotonic relationship between elevation and delta (super 37) Cl is observed. We are presently seeking a cause for this correlation. Long-term temporal variations in instrument response are considered because the rover has largely driven up-section, so stratigraphic height correlates crudely with time. However, the instrumental drift scenario may be ruled out by multiple lines of evidence including: 1) duplicate delta (super 37) Cl measurements separated by 533 sols on a sample stored on board the rover are repeatable within error; 2) samples outside of the fluvio-lacustrine stratigraphy (one rock and two sediment samples) measured contemporaneously with those in the sequence do not fit the trend. We suspect the delta (super 37) Cl correlation with stratigraphic height is a primary feature of the rock, and not due to post-depositional alteration. A correlation between delta (super 37) Cl and Cl or O (sub 2) would imply that the isotopic ratio is determined by the relative amounts of oxychlorine and chloride phases, making the trend a simple mixing relationship, but these values do not correlate. Comparing delta (super 37) Cl results to other data acquired by Curiosity, we observe no compelling correlations with chemistry or mineralogy, although weak correlations with K (sub 2) O, Zn, and SiO (sub 2) /TiO (sub 2) may exist; the extent and implications of these correlations of this are being explored. JF - Abstracts with Programs - Geological Society of America AU - Martin, Peter E AU - Farley, Kenneth A AU - Archer, P Doug AU - Atreya, Sushil AU - Conrad, Pamela G AU - Franz, Heather B AU - Mahaffy, Paul R AU - Navarro-Gonzalez, Rafael AU - Sutter, Brad AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 49 EP - 13 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861110701?accountid=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+with+Programs+-+Geological+Society+of+America&rft.atitle=Stratigraphic+dependence+of+chlorine+isotope+values+in+Gale+Crater&rft.au=Martin%2C+Peter+E%3BFarley%2C+Kenneth+A%3BArcher%2C+P+Doug%3BAtreya%2C+Sushil%3BConrad%2C+Pamela+G%3BFranz%2C+Heather+B%3BMahaffy%2C+Paul+R%3BNavarro-Gonzalez%2C+Rafael%3BSutter%2C+Brad%3BAnonymous&rft.aulast=Martin&rft.aufirst=Peter&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition 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 the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Investigating the interior of icy worlds with small aperture seismic arrays AN - 1861110689; 787344-2 AB - The interiors of the icy outer satellites are currently of great interest as they may support the largest volume of habitable space within the Solar System. A key parameter of this habitability is the presence of liquid water oceans or seas beneath the frozen surface, thus geophysical investigations of the interior are crucial for understanding the structure, dynamics, and evolution of these liquid water reservoirs. Seismology is a powerful tool for illuminating the deep interior, and will be an invaluable method for determining the thickness of ice shells, the depth of underlying oceans, underlying silicate bodies, and assessing Icy Worlds for habitability. Our present understanding of the seismic signals produced by Icy Worlds is limited, with the level of seismic activity at the surfaces (and interiors) likely driven by tidal processes. The harsh operating environments will limit mission observation times, making it is essential that the seismic information returned from a surface mission be of high fidelity in resolving key questions about the internal environment of an Icy World. Here we present new modeling results that demonstrate the improved knowledge provided by a small aperture seismic array. We define a small aperture array as a deployment of multiple 3-component seismometers, with a separation between instruments of 1-10 meters. The instruments in the array must have a sampling rate and frequency range sensitivity capable of distinguishing between waves arriving at each station. We will present 3-D synthetic modeling results that demonstrate sensing requirements and the primary advantages of such a seismic array over a single station, including the improved ability to resolve the location of the source through detection of backazimuth and differential timing between stations, ambient noise techniques, as well as the ability to improve the signal to noise ratio by additive methods such as stacking and velocity-slowness analysis. We also compute a series of modeled noise functions for Europa and Enceladus based upon periodic tidally induced stress on surface faults to estimate the types of signals and noise that would be observed by a seismic station. These results will inform future missions and planning of landers on the surfaces of Europa, Enceladus, Titan, and other objects in the outer Solar System. JF - Abstracts with Programs - Geological Society of America AU - Schmerr, Nicholas C AU - Lekic, Vedran AU - Panning, Mark AU - Hurford, Terry AU - Rhoden, Alyssa AU - Garnero, Edward AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 48 EP - 8 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861110689?accountid=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+with+Programs+-+Geological+Society+of+America&rft.atitle=Investigating+the+interior+of+icy+worlds+with+small+aperture+seismic+arrays&rft.au=Schmerr%2C+Nicholas+C%3BLekic%2C+Vedran%3BPanning%2C+Mark%3BHurford%2C+Terry%3BRhoden%2C+Alyssa%3BGarnero%2C+Edward%3BAnonymous&rft.aulast=Schmerr&rft.aufirst=Nicholas&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition 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 the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Discovering the origins of carbonaceous materials in siliceous deposits: micro Raman spectroscopic characterization of quartz fabrics in cherts AN - 1861109262; 787352-73 AB - A wide variety of microbes flourish in modern hydrothermal environments on Earth, and the biosignatures of their ancient ancestors are preserved in siliceous deposits such as cherts. Unfortunately, ancient terrestrial deposits also contain conflicting signatures, since microfossils are sometimes misidentified, and graphitized carbon and many biominerals are also formed abiotically. In some cases, multiple episodes of hydrothermal alteration can obscure otherwise syngenetic biosignatures and likewise create false signatures in the form of secondary carbon emplacement or diagenetic phase changes. Carbonaceous microfossils are most often entombed within large quartz grains. In some cases the interstices between quartz grains are also carbon-rich, but the origin of this carbon is often ambiguous. With the goal of unraveling these inconsistencies, we combined high-resolution micro Raman spectroscopic imaging with spectral deconvolution methods to characterize the quartz fabrics and macromolecular carbon in a suite of chert samples that include the nearly equal 400 Ma Rhynie chert, 1.88 Ga Gunflint Formation, and nearly equal 3.49 Dresser Formation. Using this diverse set of samples, we are able to do the following: 1) detect and map subtle differences in Raman spectra for separate generations of quartz in each sample set; 2) differentiate between different pools of carbon, one that is syngenetic and the other that was likely post-depositionally emplaced; 3) discern the affects of carbon on quartz grain orientation. Hydrothermally derived silicate deposits are of particular relevance to Mars analog studies and possible landing sites, and the unambiguous detection of biosignatures in these rocks is important for the success of upcoming missions. JF - Abstracts with Programs - Geological Society of America AU - Bower, Dina M AU - Steele, Andrew AU - Fries, Marc AU - Conrad, Pamela G AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 109 EP - 11 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861109262?accountid=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+with+Programs+-+Geological+Society+of+America&rft.atitle=Discovering+the+origins+of+carbonaceous+materials+in+siliceous+deposits%3A+micro+Raman+spectroscopic+characterization+of+quartz+fabrics+in+cherts&rft.au=Bower%2C+Dina+M%3BSteele%2C+Andrew%3BFries%2C+Marc%3BConrad%2C+Pamela+G%3BAnonymous&rft.aulast=Bower&rft.aufirst=Dina&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition 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 the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Spatiotemporal properties of landslides in the pacific Northwest AN - 1861108958; 787357-63 AB - Quantifying changes to landslide behavior has been difficult because landslide inventories are spatially limited and temporally inconsistent. The Pacific Northwest region (Washington and Oregon) has some of the best landslide inventories in the U.S., and is also highly susceptible to landslide events. Furthermore, future climate projections, such as from the National Climate Assessment, suggest that this region may experience more extreme precipitation in a changing climate. This work presents a landslide inventory synthesized from data provided by state and local agencies in Washington and Oregon, a global landslide catalog, and other literature. The new inventory includes both spatial and temporal information. The space and time patterns of landslide frequency in this region were analyzed over several decades, as well as the co-occurrence of extreme daily, seasonal and annual rainfall. This work is part of a larger project on changes to precipitation means and extremes, soil moisture, snow cover, and the resulting impacts on landslide hazard and exposure over months, years and decades within this region. JF - Abstracts with Programs - Geological Society of America AU - Kirschbaum, Dalia AU - Psaltakis, Jordan AU - Stanley, Thomas AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 150 EP - 1 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861108958?accountid=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+with+Programs+-+Geological+Society+of+America&rft.atitle=Spatiotemporal+properties+of+landslides+in+the+pacific+Northwest&rft.au=Kirschbaum%2C+Dalia%3BPsaltakis%2C+Jordan%3BStanley%2C+Thomas%3BAnonymous&rft.aulast=Kirschbaum&rft.aufirst=Dalia&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition 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 the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Rocke-3d: a dynamical modeling approach to exploring rocky planet habitability AN - 1861108508; 787348-96 AB - Current planetary missions are designed to collect data on a suite of diverse planetary characteristics such as surficial mineralogy, sedimentary layering, atmospheric composition, and even the presence of subsurface oceans. These data provide tantalizing clues about possible past and current habitable spaces in our Solar System. However, determining the existence, distribution and persistence over time of potentially habitable spaces on a given world remains a significant challenge. The challenges faced in reconstructing the habitability state(s) of other terrestrial rocky bodies are often similar to those confronted by deep-time Earth paleoclimatologists, who also grapple with sparse proxy data in their efforts to reconstruct past global and regional environments. Fortunately, three-dimensional general circulation models (GCMs) can be adapted to simulate non-modern Earth conditions, helping to "fill in" information gaps resulting from sparse data, providing new information on atmosphere/ocean dynamical processes often not preserved in the geologic record, and to suggest new hypotheses testable by future field and/or remote observing missions. The ROCKE-3D (Resolving Orbital and Climate Keys of Earth and Extraterrestrial Environments with Dynamics) GCM, a generalized version of the NASA GISS GCM, is being developed specifically to explore the climate of rocky terrestrial planets with geophysical and atmospheric properties unlike modern Earth. Here we present some examples of ROCKE-3D simulations of deep-time Earth paleoclimates, from Snowball Earths to the Cretaceous Hothouse. These experiments represent some of ROCKE-3D's capabilities in simulating known habitable (and inhabited) settings as an illustration ofathis tool's potential to assist planetary habitability studies here in the Solar System, and for rocky exoplanets yet to be discovered. JF - Abstracts with Programs - Geological Society of America AU - Chandler, Mark A AU - Sohl, Linda E AU - Carter, David AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 79 EP - 11 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861108508?accountid=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+with+Programs+-+Geological+Society+of+America&rft.atitle=Rocke-3d%3A+a+dynamical+modeling+approach+to+exploring+rocky+planet+habitability&rft.au=Chandler%2C+Mark+A%3BSohl%2C+Linda+E%3BCarter%2C+David%3BAnonymous&rft.aulast=Chandler&rft.aufirst=Mark&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition 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 the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Biovermiculation biopatterns as universal signatures of extant and extinct life AN - 1861107737; 787352-70 AB - Although individually miniscule, microorganisms frequently produce distinctive macroscopically visible communities that often trap sediment or precipitate minerals in situ. We have discovered and characterized instances of complex, unique maze-like 2 and 3 dimensional patterns that we have observed in caves, lavatubes, mines, Mayan ruins, cryptogamic soils, under hypolithic desert clasts, and at the bottom of saline streams. Other studies have reported similar patterns in desert higher vegetation. We have developed mathematical approaches to characterize and reproduce these striking patterns. The pattern features represent the influence of various properties of both the environment (e.g. fluid flow regime and velocity, access to nutrients, etc.), and features of the biology (e.g. degrees of filamentousness, "gluiness", intrinsic growth geometries, etc.). The mathematical similarity of the biopatterns at widely differing spatial scales, and involving very different organisms and environments, have led us to seek unifying principles behind the production of these patterns. Such unity of ecological principles is applicable to a broad range of systems and could represent a type of biosignature that could be found in any system, specifically because we believe we are seeing morphological expressions of behavior in response to ecological drivers. Such broad potential application may qualify as "universal" and be decoupled from the fundamental biochemistry of whatever type of life may be involved. Because of the unusual structure of biovermiculations and the their propensity to trap sediment and provide circumstances in which minerals typically precipitate, they are very likely to essentially "auto-fossilize" as a result of accumulation of geological material that adheres to and eventually can entomb or replace the microbial communities that produce them. The visually identifiable nature of such patterns can provide strong indicators that biology was involved in their production even though they may be long departed in the living state. We suggest that not only are such patterns useful in interpreting living and ancient indicators of microbial communities on Earth, but that they must be added to the still small list of visual biosignatures for application to the search for life on Mars and elsewhere. JF - Abstracts with Programs - Geological Society of America AU - Boston, Penelope J AU - Schubert, Keith E AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 109 EP - 8 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861107737?accountid=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+with+Programs+-+Geological+Society+of+America&rft.atitle=Biovermiculation+biopatterns+as+universal+signatures+of+extant+and+extinct+life&rft.au=Boston%2C+Penelope+J%3BSchubert%2C+Keith+E%3BAnonymous&rft.aulast=Boston&rft.aufirst=Penelope&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition 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 the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Mineralogy of mudstone at gale crater, Mars: evidence for dynamic lacustrine environments AN - 1861107709; 787351-70 AB - The Mars Science Laboratory Curiosity rover landed in Gale crater in August 2012 to assess the habitability of sedimentary deposits that show orbital evidence for diverse ancient aqueous environments. Gale crater contains a 5 km high mound of layered sedimentary rocks in its center, informally named Mount Sharp. The lowermost rocks of Mount Sharp contain minerals that are consistent with a dramatic climate change during Mars' early history. During the rover's traverse across the Gale crater plains to the base of Mount Sharp, Curiosity discovered sedimentary rocks consistent with a fluviolacustrine sequence. Curiosity studied ancient lacustrine deposits at Yellowknife Bay on the plains of Gale crater and continues to study ancient lacustrine deposits in the Murray formation, the lowermost unit of Mount Sharp. These investigations include drilling into the mudstone and delivering the sieved nearly equal 5 wt.%. FULLPAT analyses of CheMin XRD patterns provide the abundance of X-ray amorphous materials and constrain the identity of these phases (e.g., opal-A vs. opal-CT). At the time of writing, CheMin has analyzed 14 samples, seven of which were drilled from lacustrine deposits. The mineralogy from CheMin, combined with in-situ geochemical measurements and sedimentological observations, suggest an evolution in the lake waters through time, including changes in pH and salinity and transitions between oxic and anoxic conditions. In addition to a geochemically dynamic lake environment, the igneous minerals discovered in the lake sediments indicate changes in source region through time, with input from mafic and silicic igneous sources. The Murray formation is predominantly comprised of lacustrine mudstone and is 150-200 m thick, suggesting long history of lake environments in Gale crater. Curiosity has traversed through the lowermost nearly equal 30 m of the Murray formation, and each additional sample provides clues about the climate on early Mars. JF - Abstracts with Programs - Geological Society of America AU - Rampe, Elizabeth B AU - Ming, Douglas W AU - Grotzinger, John P AU - Morris, Richard V AU - Blake, David F AU - Vaniman, David T AU - Bristow, Thomas F AU - Yen, Albert S AU - Chipera, Steve AU - Morrison, Shaunna M AU - Downs, Robert T AU - Achilles, Cherie N AU - Peretyazhko, Tanya AU - Treiman, Allan H AU - Craig, Patricia I AU - Farmer, Jack D AU - Des Marais, David J AU - Fairen, Alberto G AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 102 EP - 4 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861107709?accountid=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+with+Programs+-+Geological+Society+of+America&rft.atitle=Mineralogy+of+mudstone+at+gale+crater%2C+Mars%3A+evidence+for+dynamic+lacustrine+environments&rft.au=Rampe%2C+Elizabeth+B%3BMing%2C+Douglas+W%3BGrotzinger%2C+John+P%3BMorris%2C+Richard+V%3BBlake%2C+David+F%3BVaniman%2C+David+T%3BBristow%2C+Thomas+F%3BYen%2C+Albert+S%3BChipera%2C+Steve%3BMorrison%2C+Shaunna+M%3BDowns%2C+Robert+T%3BAchilles%2C+Cherie+N%3BPeretyazhko%2C+Tanya%3BTreiman%2C+Allan+H%3BCraig%2C+Patricia+I%3BFarmer%2C+Jack+D%3BDes+Marais%2C+David+J%3BFairen%2C+Alberto+G%3BAnonymous&rft.aulast=Rampe&rft.aufirst=Elizabeth&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition 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 the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - The influence of volcanic eruptions on the climate of tropical South America during the last millennium in an isotope-enabled general circulation model AN - 1861106533; 774309-10 AB - Currently, little is known on how volcanic eruptions impact large-scale climate phenomena such as South American paleo-Intertropical Convergence Zone (ITCZ) position and summer monsoon behavior. In this paper, an analysis of observations and model simulations is employed to assess the influence of large volcanic eruptions on the climate of tropical South America. This problem is first considered for historically recent volcanic episodes for which more observations are available but where fewer events exist and the confounding effects of El Nino-Southern Oscillation (ENSO) lead to inconclusive interpretation of the impact of volcanic eruptions at the continental scale. Therefore, we also examine a greater number of reconstructed volcanic events for the period 850 CE to present that are incorporated into the NASA GISS ModelE2-R simulation of the last millennium. An advantage of this model is its ability to explicitly track water isotopologues throughout the hydrologic cycle and simulating the isotopic imprint following a large eruption. This effectively removes a degree of uncertainty associated with error-prone conversion of isotopic signals into climate variables, and allows for a direct comparison between GISS simulations and paleoclimate proxy records. Our analysis reveals that both precipitation and oxygen isotope variability respond with a distinct seasonal and spatial structure across tropical South America following an eruption. During austral winter, the heavy oxygen isotope in precipitation is enriched, likely due to reduced moisture convergence in the ITCZ domain and reduced rainfall over northern South America. During austral summer, however, more negative values of the precipitation isotopic composition are simulated over Amazonia, despite reductions in rainfall, suggesting that the isotopic response is not a simple function of the "amount effect". During the South American monsoon season, the amplitude of the temperature response to volcanic forcing is larger than the rather weak and spatially less coherent precipitation signal, complicating the isotopic response to changes in the hydrologic cycle. JF - Climate of the Past AU - Colose, Christopher M AU - LeGrande, Allegra N AU - Vuille, Mathias Y1 - 2016 PY - 2016 DA - 2016 SP - 961 EP - 979 PB - Copernicus, Katlenburg-Lindau VL - 12 IS - 4 SN - 1814-9324, 1814-9324 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861106533?accountid=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=Climate+of+the+Past&rft.atitle=The+influence+of+volcanic+eruptions+on+the+climate+of+tropical+South+America+during+the+last+millennium+in+an+isotope-enabled+general+circulation+model&rft.au=Colose%2C+Christopher+M%3BLeGrande%2C+Allegra+N%3BVuille%2C+Mathias&rft.aulast=Colose&rft.aufirst=Christopher&rft.date=2016-01-01&rft.volume=12&rft.issue=4&rft.spage=961&rft.isbn=&rft.btitle=&rft.title=Climate+of+the+Past&rft.issn=18149324&rft_id=info:doi/ L2 - http://www.clim-past.net/12/961/2016/cp-12-961-2016.pdf http://www.climate-of-the-past.net/ 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 Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Number of references - 118 N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Ceres Revealed in a Grain of AN - 1861105719; 782783-72 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Zolensky, Salt M E AU - Bodnar, R J AU - Fries, M AU - Chan, Q H S AU - Kebukawa, Y AU - Mikouchi, T AU - Hagiya, K AU - Komatsu, M AU - Ohsumi, K AU - Steele, A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 3772 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861105719?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Ceres+Revealed+in+a+Grain+of&rft.au=Zolensky%2C+Salt+M+E%3BBodnar%2C+R+J%3BFries%2C+M%3BChan%2C+Q+H+S%3BKebukawa%2C+Y%3BMikouchi%2C+T%3BHagiya%2C+K%3BKomatsu%2C+M%3BOhsumi%2C+K%3BSteele%2C+A%3BAnonymous&rft.aulast=Zolensky&rft.aufirst=Salt+M&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=3772&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/3772.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - Modeling Antarctic subglacial lake filling and drainage cycles AN - 1861105355; 781827-2 AB - The growth and drainage of active subglacial lakes in Antarctica has previously been inferred from analysis of ice surface altimetry data. We use a subglacial hydrology model applied to a synthetic Antarctic ice stream to examine internal controls on the filling and drainage of subglacial lakes. Our model outputs suggest that the highly constricted subglacial environment of our idealized ice stream, combined with relatively high rates of water flow funneled from a large catchment, can combine to create a system exhibiting slow-moving pressure waves. Over a period of years, the accumulation of water in the ice stream onset region results in a buildup of pressure creating temporary channels, which then evacuate the excess water. This increased flux of water beneath the ice stream drives lake growth. As the water body builds up, it steepens the hydraulic gradient out of the overdeepened lake basin and allows greater flux. Eventually this flux is large enough to melt channels that cause the lake to drain. Lake drainage also depends on the internal hydrological development in the wider system and therefore does not directly correspond to a particular water volume or depth. This creates a highly temporally and spatially variable system, which is of interest for assessing the importance of subglacial lakes in ice stream hydrology and dynamics. JF - The Cryosphere (Online) AU - Dow, Christine F AU - Werder, Mauro A AU - Nowicki, Sophie AU - Walker, Ryan T Y1 - 2016 PY - 2016 DA - 2016 SP - 1381 EP - 1393 PB - Copernicus on behalf of the European Geosciences Union, Katlenburg-Lindau VL - 10 IS - 4 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861105355?accountid=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=The+Cryosphere+%28Online%29&rft.atitle=Modeling+Antarctic+subglacial+lake+filling+and+drainage+cycles&rft.au=Dow%2C+Christine+F%3BWerder%2C+Mauro+A%3BNowicki%2C+Sophie%3BWalker%2C+Ryan+T&rft.aulast=Dow&rft.aufirst=Christine&rft.date=2016-01-01&rft.volume=10&rft.issue=4&rft.spage=1381&rft.isbn=&rft.btitle=&rft.title=The+Cryosphere+%28Online%29&rft.issn=1994-0424&rft_id=info:doi/ L2 - http://www.the-cryosphere.net/10/1381/2016/tc-10-1381-2016.pdf http://www.the-cryosphere.net/volumes_and_issues.html 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 Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Number of references - 38 N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Retrieval of optical and physical properties of African dust from multiwavelength Raman lidar measurements during the SHADOW campaign in Senegal AN - 1861104628; 781777-22 AB - West Africa and the adjacent oceanic regions are very important locations for studying dust properties and their influence on weather and climate. The SHADOW (study of SaHAran Dust Over West Africa) campaign is performing a multiscale and multilaboratory study of aerosol properties and dynamics using a set of in situ and remote sensing instruments at an observation site located at the IRD (Institute for Research and Development) in Mbour, Senegal (14 degrees N, 17 degrees W). In this paper, we present the results of lidar measurements performed during the first phase of SHADOW (study of SaHAran Dust Over West Africa) which occurred in March-April 2015. The multiwavelength Mie-Raman lidar acquired 3beta + 2alpha + 1delta measurements during this period. This set of measurements has permitted particle-intensive properties, such as extinction and backscattering Aangstroem exponents (BAE) for 355/532 nm wavelengths' corresponding lidar ratios and depolarization ratio at 532 nm, to be determined. The mean values of dust lidar ratios during the observation period were about 53 sr at both 532 and 355 nm, which agrees with the values observed during the SAMUM-1 and SAMUM-2 campaigns held in Morocco and Cabo Verde in 2006 and 2008. The mean value of the particle depolarization ratio at 532 nm was 30 + or - 4.5 %; however, during strong dust episodes this ratio increased to 35 + or - 5 %, which is also in agreement with the results of the SAMUM campaigns. The backscattering Aangstroem exponent during the dust episodes decreased to approximately -0.7, while the extinction Aangstroem exponent, though negative, was greater than -0.2. Low values of BAE can likely be explained by an increase in the imaginary part of the dust refractive index at 355 nm compared to 532 nm. The dust extinction and backscattering coefficients at multiple wavelengths were inverted to the particle microphysics using the regularization algorithm and the model of randomly oriented spheroids. The analysis performed has demonstrated that the spectral dependence of the imaginary part of the dust refractive index may significantly influence the inversion results and should be taken into account. JF - Atmospheric Chemistry and Physics AU - Veselovskii, I AU - Goloub, P AU - Podvin, T AU - Bovchaliuk, V AU - Derimian, Y AU - Augustin, P AU - Fourmentin, M AU - Tanre, D AU - Korenskiy, M AU - Whiteman, D N AU - Diallo, A AU - Ndiaye, T AU - Kolgotin, A AU - Dubovik, O Y1 - 2016 PY - 2016 DA - 2016 SP - 7013 EP - 7028 PB - Copernicus, Katlenburg-Lindau VL - 16 IS - 11 SN - 1680-7316, 1680-7316 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861104628?accountid=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=Atmospheric+Chemistry+and+Physics&rft.atitle=Retrieval+of+optical+and+physical+properties+of+African+dust+from+multiwavelength+Raman+lidar+measurements+during+the+SHADOW+campaign+in+Senegal&rft.au=Veselovskii%2C+I%3BGoloub%2C+P%3BPodvin%2C+T%3BBovchaliuk%2C+V%3BDerimian%2C+Y%3BAugustin%2C+P%3BFourmentin%2C+M%3BTanre%2C+D%3BKorenskiy%2C+M%3BWhiteman%2C+D+N%3BDiallo%2C+A%3BNdiaye%2C+T%3BKolgotin%2C+A%3BDubovik%2C+O&rft.aulast=Veselovskii&rft.aufirst=I&rft.date=2016-01-01&rft.volume=16&rft.issue=11&rft.spage=7013&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics&rft.issn=16807316&rft_id=info:doi/ L2 - http://www.atmos-chem-phys.net/16/7013/2016/acp-16-7013-2016.pdf http://www.atmospheric-chemistry-and-physics.net/home.html 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 Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Number of references - 54 N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - The PRISM4 (mid-Piacenzian) paleoenvironmental reconstruction AN - 1861104625; 781806-8 AB - The mid-Piacenzian is known as a period of relative warmth when compared to the present day. A comprehensive understanding of conditions during the Piacenzian serves as both a conceptual model and a source for boundary conditions as well as means of verification of global climate model experiments. In this paper we present the PRISM4 reconstruction, a paleoenvironmental reconstruction of the mid-Piacenzian ( approximately 3 Ma) containing data for paleogeography, land and sea ice, sea-surface temperature, vegetation, soils, and lakes. Our retrodicted paleogeography takes into account glacial isostatic adjustments and changes in dynamic topography. Soils and lakes, both significant as land surface features, are introduced to the PRISM reconstruction for the first time. Sea-surface temperature and vegetation reconstructions are unchanged but now have confidence assessments. The PRISM4 reconstruction is being used as boundary condition data for the Pliocene Model Intercomparison Project Phase 2 (PlioMIP2) experiments. JF - Climate of the Past AU - Dowsett, Harry AU - Dolan, Aisling AU - Rowley, David AU - Moucha, Robert AU - Forte, Alessandro M AU - Mitrovica, Jerry X AU - Pound, Matthew AU - Salzmann, Ulrich AU - Robinson, Marci AU - Chandler, Mark AU - Foley, Kevin AU - Haywood, Alan Y1 - 2016 PY - 2016 DA - 2016 SP - 1519 EP - 1538 PB - Copernicus, Katlenburg-Lindau VL - 12 IS - 7 SN - 1814-9324, 1814-9324 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861104625?accountid=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=Climate+of+the+Past&rft.atitle=The+PRISM4+%28mid-Piacenzian%29+paleoenvironmental+reconstruction&rft.au=Dowsett%2C+Harry%3BDolan%2C+Aisling%3BRowley%2C+David%3BMoucha%2C+Robert%3BForte%2C+Alessandro+M%3BMitrovica%2C+Jerry+X%3BPound%2C+Matthew%3BSalzmann%2C+Ulrich%3BRobinson%2C+Marci%3BChandler%2C+Mark%3BFoley%2C+Kevin%3BHaywood%2C+Alan&rft.aulast=Dowsett&rft.aufirst=Harry&rft.date=2016-01-01&rft.volume=12&rft.issue=7&rft.spage=1519&rft.isbn=&rft.btitle=&rft.title=Climate+of+the+Past&rft.issn=18149324&rft_id=info:doi/ L2 - http://www.clim-past.net/12/1519/2016/cp-12-1519-2016.pdf http://www.climate-of-the-past.net/ 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 Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Number of references - 146 N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Rheology of crystallizing basalts from Nyiragongo and Nyamuragira volcanoes, D.R.C. AN - 1861101278; 787340-56 AB - Nyiragongo, a stratovolcano within the Virunga Volcanic Province on the western branch of the East African Rift, is known for persistent lava lake activity as well as devastating eruptions in 1977 and 2002. The 2002 eruption caused a humanitarian crisis when channelized lava flows entered the nearby city of Goma killing 170 people and displacing nearly equal 350,000 others. These lavas have low silica contents (39-42 wt% SiO (sub 2) ) and are very fluid, allowing flows to move rapidly down the volcano's flanks. Rheology of lavas from Nyiragongo was measured using a concentric cylinder viscometer over a range of temperatures between 1221 degrees C and 1145 degrees C. The viscosity is nearly equal 41 Pa s at the liquidus temperature of nearly equal 1213 degrees C (similar to Hawaiian lavas: 30 Pa s near the liquidus temperature of nearly equal 1230 degrees C), increasing gradually to nearly equal 741 Pa s at 1145 degrees C. Over this temperature range, crystal fraction remains low (phi (sub c) < or = 0.02) until nearly equal 50 degrees C undercooled and only nearly equal 0.05 at 1145 degrees C, where the bulk melt viscosity would be nearly equal 138 Pa s. This change in viscosity is due mainly to cooling effects rather than physical or chemical effects of crystallization. The data were collected at strain rates between nearly equal 0.4 and 46.3 s (super -1) , and are well reproduced using a power-law model with exponents decreasing from 0.96 (1221 degrees C) to nearly equal 0.78 (1145 degrees C) with no detectable yield strength. Crystal fraction and lava viscosity both increase rapidly below 1145 degrees C, preventing further experiments. Lavas from the neighboring shield volcano, Nyamuragira, show significant crystallization at temperatures closer to the liquidus and so pseudo-plastic behavior is also observed closer to the liquidus. Data are again well reproduced by a power-law fit with flow indices ranging between 0.89 (1255 degrees C) and nearly equal 0.42 (1154 degrees C). While still fairly fluid, having a liquid viscosity of nearly equal 46 Pa s, it is more viscous than Nyiragongo lavas and crystallizes more rapidly upon undercooling, reaching an effective viscosity of nearly equal 1110 Pa s at 1154 degrees C. In recent years, the steep-sided stratovolcano Nyiragongo has erupted lava more fluid than erupted by the nearby shield volcano, Nyamuragira, producing fast moving flows that pose imminent danger to the inhabitants of Goma. Consequently, lava flow inundation hazard cannot be predicted solely by the morphology of the volcanoes from which the flows erupt. JF - Abstracts with Programs - Geological Society of America AU - Morrison, Aaron A AU - Sehlke, Alexander AU - Whittington, Alan G AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 21 EP - 6 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861101278?accountid=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+with+Programs+-+Geological+Society+of+America&rft.atitle=Rheology+of+crystallizing+basalts+from+Nyiragongo+and+Nyamuragira+volcanoes%2C+D.R.C.&rft.au=Morrison%2C+Aaron+A%3BSehlke%2C+Alexander%3BWhittington%2C+Alan+G%3BAnonymous&rft.aulast=Morrison&rft.aufirst=Aaron&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition 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 the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Mudflow alluvial fans of the Atacama Desert in Chile AN - 1861101238; 787340-86 AB - Along a 200 km transect of the Atacama Desert in northern Chile a series of mudflow-dominated alluvial fans derive from the volcanic Andean foothills, flowing onto the hyperarid interior basin at about 1100 m elevation. The fan systems, centered at about 20.5 degrees S, 69.4 degrees W are active at about decadal frequency. Individual flows extend 20-30 km across the basin, with individual flows averaging about 0.5 meters deep but nearly equal 1 km across. Individual deposits are typically 5-25 cm thick with a matrix averaging roughly 15% expandable clay, 40% silt, and 45% sand, mixed with variable amounts of fine gravel. Near the fan apex flows are partly channelized, but downstream the flows occur as shallow, braided flows with extensive overbank deposits. The mudflows also transport a small proportion of coarse gravel to boulders, deposited as bars and one- or two-boulder wide levees. Some of the boulders are rip-up clasts from earlier events. The coarse component is primarily transporting by rolling across the smooth fan surface. The mud deposits are susceptible to wind erosion, so that older flows become covered by a dark armor of granules to pebbles. Individual flows only partially follow the path of earlier flows, with frequent creation and abandonment of individual channels. The thick fan deposits are therefore composed of thousands of thin, interlaced mud deposits with granule or pebble deflation lags and scattered boulders and boulder bars associated with channels. JF - Abstracts with Programs - Geological Society of America AU - Howard, Alan D AU - Dietrich, William E AU - Williams, Rebecca M E AU - Morgan, Alex M AU - Irwin, Rossman P, III AU - Moore, Jeffrey M AU - Hobley, Daniel E J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 23 EP - 10 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861101238?accountid=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+with+Programs+-+Geological+Society+of+America&rft.atitle=Mudflow+alluvial+fans+of+the+Atacama+Desert+in+Chile&rft.au=Howard%2C+Alan+D%3BDietrich%2C+William+E%3BWilliams%2C+Rebecca+M+E%3BMorgan%2C+Alex+M%3BIrwin%2C+Rossman+P%2C+III%3BMoore%2C+Jeffrey+M%3BHobley%2C+Daniel+E+J%3BAnonymous&rft.aulast=Howard&rft.aufirst=Alan&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition 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 the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - The spectacular macroscopic microbial biosignatures of lava tube caves AN - 1861101226; 787341-89 AB - Lava tube caves in environments as wet as tropical oceanic islands, and as dry as the Mojave Desert sport frequently flamboyant macroscopic microbial/mineral deposits. These often colorful or structurally elaborate indicators are the product of microbial physiology combined with their abilities to transform materials resulting in biomineral deposits, sediment trapping, pigment production, and creation of distinctive patterning. All of these visually detectable phenomena are a reflection of the acquisition of energy and transformation of materials within these systems. The widespread distribution of volcanic cave habitats on Earth provide a globally distributed suite of habitats that vary along important environmental gradients including temperature, humidity, and access to surface-derived organics or the lack thereof and greater reliance of such microbial communities on variations on chemolithotrophy. Enormous biodiversity is present partly controlled by these environmental parameters, but also controlled by nuances of the interaction of bedrock composition and textures, and possibly intrinsic heterogeneity caused by processes internal to the microorganisms themselves. The deposition of minerals that are facilitated by microbial physiological properties and processes result in preservation of the microbial behavior in a tangible mineral form that can be detected and studied even if the particular habitat later becomes unfavorable for organisms to grow. The often subtle fracture-dominated seepage hydrology of many lava tubes provides an additional critical variable that contributes to the complex package of factors controlling the distribution of microbial types and macroscopic indicators. The study of these systems necessarily involves considerations of the hydrology, underlying geology, resulting mineralogy, and biology, thus making a systems approach essential. JF - Abstracts with Programs - Geological Society of America AU - Boston, Penelope J AU - Spilde, Michael N AU - Northup, Diana E AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 31 EP - 6 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861101226?accountid=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+with+Programs+-+Geological+Society+of+America&rft.atitle=The+spectacular+macroscopic+microbial+biosignatures+of+lava+tube+caves&rft.au=Boston%2C+Penelope+J%3BSpilde%2C+Michael+N%3BNorthup%2C+Diana+E%3BAnonymous&rft.aulast=Boston&rft.aufirst=Penelope&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition 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 the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Diagenesis along fractures in an eolian sandstone, Gale crater, Mars AN - 1861101211; 787340-50 AB - The Mars Science Laboratory rover Curiosity has been exploring sedimentary deposits in Gale crater since August 2012. The rover has traversed up section through nearly equal 100 m of sedimentary rocks deposited in fluvial, deltaic, lacustrine, and eolian environments (Bradbury group and overlying Mount Sharp group). The Stimson formation lies unconformable over a lacustrine mudstone at the base of the Mount Sharp group and has been interpreted to be a cross-bedded sandstone of lithified eolian dunes. Mineralogy of the unaltered Stimson sandstone consists of plagioclase feldspar, pyroxenes, and magnetite with minor abundances of hematite, and Ca-sulfates (anhydrite, bassanite). Unaltered sandstone has a composition similar to the average Mars crustal composition. Alteration "halos" occur adjacent to fractures in the Stimson. Fluids passing through these fractures have altered the chemistry and mineralogy of the sandstone. Silicon and S enrichments and depletions in Al, Fe, Mg, Na, K, Ni and Mn suggest aqueous alteration in an open hydrologic system. Mineralogy of the altered Stimson is dominated by Ca-sulfates, Si-rich X-ray amorphous materials along with plagioclase feldspar, magnetite, and pyroxenes, but less abundant in the altered compared to the unaltered Stimson sandstone and lower pyroxene/plagioclase feldspar. The mineralogy and geochemistry of the altered sandstone suggest a complicated history with several (many?) episodes of aqueous alteration under a variety of environmental conditions (e.g., acidic, alkaline). JF - Abstracts with Programs - Geological Society of America AU - Ming, D W AU - Yen, A S AU - Rampe, E B AU - Grotzinger, J P AU - Blake, D F AU - Bristow, T F AU - Chipera, S J AU - Downs, R T AU - Morris, R V AU - Morrison, S M AU - Vaniman, D T AU - Gellert, R AU - Sutter, B AU - Treiman, A H AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 20 EP - 13 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861101211?accountid=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+with+Programs+-+Geological+Society+of+America&rft.atitle=Diagenesis+along+fractures+in+an+eolian+sandstone%2C+Gale+crater%2C+Mars&rft.au=Ming%2C+D+W%3BYen%2C+A+S%3BRampe%2C+E+B%3BGrotzinger%2C+J+P%3BBlake%2C+D+F%3BBristow%2C+T+F%3BChipera%2C+S+J%3BDowns%2C+R+T%3BMorris%2C+R+V%3BMorrison%2C+S+M%3BVaniman%2C+D+T%3BGellert%2C+R%3BSutter%2C+B%3BTreiman%2C+A+H%3BAnonymous&rft.aulast=Ming&rft.aufirst=D&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition 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 the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Evolving models for facies and compositional variations in the Murray Formation mudstone, Gale crater, Mars AN - 1861101142; 787340-45 AB - The Murray formation, Gale crater, Mars contains one major depositional facies - laminated mudstone - deposited in a lake; and minor additional facies - ripple cross laminated and trough cross bedded sandstones - representing subaqueous delta foreslope, fluvial, or eolian environments. The persistence of fine lamination, locally with scour and drape truncation surfaces, and absence of desiccation cracks, prism cracks, intraclasts, displacive evaporite crystals and nodules all suggest a perennial lake formed at depths great enough to avoid seasonal desiccation. Possible eolian and fluvial deposits would indicate base level lowering during longer-term lake level oscillation. Two compositional facies are observed based on elemental and mineralogic data, a hematite-sulfate (HS) facies and magnetite-silica (MS) facies. The HS facies comprises the lower few meters of stratigraphy exposed in the foothills of Mt Sharp, and transitions upward without any major change in the physical facies into the MS facies which persists through nearly equal 10 meters up to higher levels in the Murray formation. Thinning of lamination from nearly equal 2 mm to nearly equal 0.5 mm coincides with the compositional facies transition. At the highest stratigraphic levels studied by Curiosity hematitic rocks are encountered again but lack significant sulfates that are not associated with later diagenesis; physical facies are a mixture of finely laminated mudstones and trough crossbedded fine sandstones. Two models best fit the physical and compositional data. In the first case, variations in the composition of fine clastic detritus delivered to the lake via marginal sediment plumes, coupled with redox oscillations in the composition of authigenic minerals precipitated from the lake. In the second model, originally reduced sediments of either detrital or authigenic origin are oxidized during burial diagenesis related to circulation of oxidizing groundwaters, converting reduced species, e.g. magnetite and sulfides, to hematite and Fe-sulfates. In either case, at least some fraction of the high silica material in the HM facies is likely be detrital (tridymite), and it seems most likely that Mg-sulfates which form concretions are related to burial diagenesis and not the primary environment. JF - Abstracts with Programs - Geological Society of America AU - Grotzinger, John P AU - Hurowitz, Joel A AU - Rampe, Elizabeth B AU - Stack, Kathryn M AU - Stein, Nathan AU - Blake, David F AU - Gellert, Ralf AU - McLennan, S M AU - Ming, Douglas W AU - Sumner, Dawn AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 20 EP - 8 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861101142?accountid=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+with+Programs+-+Geological+Society+of+America&rft.atitle=Evolving+models+for+facies+and+compositional+variations+in+the+Murray+Formation+mudstone%2C+Gale+crater%2C+Mars&rft.au=Grotzinger%2C+John+P%3BHurowitz%2C+Joel+A%3BRampe%2C+Elizabeth+B%3BStack%2C+Kathryn+M%3BStein%2C+Nathan%3BBlake%2C+David+F%3BGellert%2C+Ralf%3BMcLennan%2C+S+M%3BMing%2C+Douglas+W%3BSumner%2C+Dawn%3BAnonymous&rft.aulast=Grotzinger&rft.aufirst=John&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition 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 the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2017-01-24 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Oxychlorine detections on Mars: Implications for Cl cycling. AN - 1861096082; 782775-100 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Sutter, B AU - Jackson, W A AU - Ming, D W AU - Archer, P D AU - Stern, J C AU - Mahaffy, P R AU - Gellert, R AU - MSL Science, Team AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 3000 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861096082?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Oxychlorine+detections+on+Mars%3A+Implications+for+Cl+cycling.&rft.au=Sutter%2C+B%3BJackson%2C+W+A%3BMing%2C+D+W%3BArcher%2C+P+D%3BStern%2C+J+C%3BMahaffy%2C+P+R%3BGellert%2C+R%3BMSL+Science%2C+Team%3BAnonymous&rft.aulast=Sutter&rft.aufirst=B&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=3000&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/3000.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - NEEMO 20; science training, operations, and tool development AN - 1861096031; 777408-82 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Graff, Trevor G AU - Miller, M AU - Rodriguez-Lanetty, M AU - Chappell, S AU - Naids, A AU - Hood, A AU - Coan, D AU - Abell, P AU - John, K AU - Todd, W AU - Reagan, M AU - Janoiko, B AU - Beaton, K AU - Poffenberger, J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 2212.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861096031?accountid=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=NEEMO+20%3B+science+training%2C+operations%2C+and+tool+development&rft.au=Graff%2C+Trevor+G%3BMiller%2C+M%3BRodriguez-Lanetty%2C+M%3BChappell%2C+S%3BNaids%2C+A%3BHood%2C+A%3BCoan%2C+D%3BAbell%2C+P%3BJohn%2C+K%3BTodd%2C+W%3BReagan%2C+M%3BJanoiko%2C+B%3BBeaton%2C+K%3BPoffenberger%2C+J%3BAnonymous&rft.aulast=Graff&rft.aufirst=Trevor&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 3 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Reconstructing phreatic blasts from ballistic block fields at Kings Bowl, Idaho AN - 1861096008; 777408-86 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nawotniak, S E Kobs AU - Borg, C AU - Hughes, S S AU - Sears, D W G AU - Trcka, A AU - Sandmeyer, E AU - Lim, D S S AU - Heldmann, J L AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 2514.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861096008?accountid=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=Reconstructing+phreatic+blasts+from+ballistic+block+fields+at+Kings+Bowl%2C+Idaho&rft.au=Nawotniak%2C+S+E+Kobs%3BBorg%2C+C%3BHughes%2C+S+S%3BSears%2C+D+W+G%3BTrcka%2C+A%3BSandmeyer%2C+E%3BLim%2C+D+S+S%3BHeldmann%2C+J+L%3BAnonymous&rft.aulast=Nawotniak&rft.aufirst=S+E&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 6 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Characterization of lunar farside plains AN - 1861094308; 777406-38 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Mest, S C AU - Garry, W B AU - Ostrach, L R AU - Han, S C AU - Staid, M I AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 1565.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861094308?accountid=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=Characterization+of+lunar+farside+plains&rft.au=Mest%2C+S+C%3BGarry%2C+W+B%3BOstrach%2C+L+R%3BHan%2C+S+C%3BStaid%2C+M+I%3BAnonymous&rft.aulast=Mest&rft.aufirst=S&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 24 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Deliquescence-driven brine formation in the Atacama Desert, Chile; implications for liquid water at the Martian surface AN - 1861094291; 777408-76 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Farris, H N AU - Davila, A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 2518.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861094291?accountid=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=Deliquescence-driven+brine+formation+in+the+Atacama+Desert%2C+Chile%3B+implications+for+liquid+water+at+the+Martian+surface&rft.au=Farris%2C+H+N%3BDavila%2C+A%3BAnonymous&rft.aulast=Farris&rft.aufirst=H&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 3 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Catastrophic impact of silicon on silicon; unraveling the Genesis impact using Sample 61881 AN - 1861094127; 777406-17 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Kuhlman, K R AU - Kim, H AU - Jurewicz, A J G AU - Gonzalez, C P AU - Allums, K K AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 2460.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861094127?accountid=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=Catastrophic+impact+of+silicon+on+silicon%3B+unraveling+the+Genesis+impact+using+Sample+61881&rft.au=Kuhlman%2C+K+R%3BKim%2C+H%3BJurewicz%2C+A+J+G%3BGonzalez%2C+C+P%3BAllums%2C+K+K%3BAnonymous&rft.aulast=Kuhlman&rft.aufirst=K&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 6 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Overview of NASA Finesse (field investigations to enable solar system science and exploration) science and exploration project AN - 1861094111; 777408-88 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Heldmann, J L AU - Lim, D S S AU - Hughes, S AU - Nawotniak, S Kobs AU - Garry, B AU - Sears, D AU - Neish, C AU - Osinski, G R AU - Hodges, K AU - Downs, M AU - Busto, J AU - Cohen, B AU - Caldwell, B AU - Jones, A J P AU - Johnson, S AU - Kobayashi, L AU - Colaprete, A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 1269.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861094111?accountid=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=Overview+of+NASA+Finesse+%28field+investigations+to+enable+solar+system+science+and+exploration%29+science+and+exploration+project&rft.au=Heldmann%2C+J+L%3BLim%2C+D+S+S%3BHughes%2C+S%3BNawotniak%2C+S+Kobs%3BGarry%2C+B%3BSears%2C+D%3BNeish%2C+C%3BOsinski%2C+G+R%3BHodges%2C+K%3BDowns%2C+M%3BBusto%2C+J%3BCohen%2C+B%3BCaldwell%2C+B%3BJones%2C+A+J+P%3BJohnson%2C+S%3BKobayashi%2C+L%3BColaprete%2C+A%3BAnonymous&rft.aulast=Heldmann&rft.aufirst=J&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Partnering to enhance education and public engagement programs AN - 1861093705; 777408-48 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Shupla, C AU - Bialeschki, D AU - Buxner, S AU - Felske, L AU - Foxworth, S AU - Graff, P AU - Peticolas, L AU - Shaner, A AU - Smith Hackler, A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 1598.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861093705?accountid=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=Partnering+to+enhance+education+and+public+engagement+programs&rft.au=Shupla%2C+C%3BBialeschki%2C+D%3BBuxner%2C+S%3BFelske%2C+L%3BFoxworth%2C+S%3BGraff%2C+P%3BPeticolas%2C+L%3BShaner%2C+A%3BSmith+Hackler%2C+A%3BAnonymous&rft.aulast=Shupla&rft.aufirst=C&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 4 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Vaporization and thermodynamics of forsterite-rich olivine AN - 1861093695; 777406-22 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Costa, Gustavo C C AU - Jacobson, N S AU - Fegley, B AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 1454.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861093695?accountid=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=Vaporization+and+thermodynamics+of+forsterite-rich+olivine&rft.au=Costa%2C+Gustavo+C+C%3BJacobson%2C+N+S%3BFegley%2C+B%3BAnonymous&rft.aulast=Costa&rft.aufirst=Gustavo+C&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 7 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The distribution of Mare and Cryptomare in the South Pole-Aitken Basin; new perspectives from multiple datasets AN - 1861093516; 777408-9 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Clegg-Watkins, R N AU - Jolliff, B L AU - Petro, N E AU - Lawrence, S J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 2072.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861093516?accountid=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=The+distribution+of+Mare+and+Cryptomare+in+the+South+Pole-Aitken+Basin%3B+new+perspectives+from+multiple+datasets&rft.au=Clegg-Watkins%2C+R+N%3BJolliff%2C+B+L%3BPetro%2C+N+E%3BLawrence%2C+S+J%3BAnonymous&rft.aulast=Clegg-Watkins&rft.aufirst=R&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 21 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Opportunity microscopic imager results from the western rim of Endeavour Crater AN - 1861093498; 777406-89 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Herkenhoff, K E AU - Arvidson, R E AU - Mittlefehldt, D W AU - Sullivan, R J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 1664.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861093498?accountid=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=Opportunity+microscopic+imager+results+from+the+western+rim+of+Endeavour+Crater&rft.au=Herkenhoff%2C+K+E%3BArvidson%2C+R+E%3BMittlefehldt%2C+D+W%3BSullivan%2C+R+J%3BAnonymous&rft.aulast=Herkenhoff&rft.aufirst=K&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 9 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The first global geological map of Mercury AN - 1861093468; 777406-29 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Prockter, Louise M AU - Kinczyk, Mallory J AU - Byrne, Paul K AU - Denevi, Brett W AU - Head, James W, III AU - Fassett, Caleb I AU - Whitten, Jennifer L AU - Thomas, Rebecca J AU - Buczkowski, Debra L AU - Hynek, Brian M AU - Ostrach, Lillian R AU - Blewett, David T AU - Ernst, Carolyn M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 1245.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861093468?accountid=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=The+first+global+geological+map+of+Mercury&rft.au=Prockter%2C+Louise+M%3BKinczyk%2C+Mallory+J%3BByrne%2C+Paul+K%3BDenevi%2C+Brett+W%3BHead%2C+James+W%2C+III%3BFassett%2C+Caleb+I%3BWhitten%2C+Jennifer+L%3BThomas%2C+Rebecca+J%3BBuczkowski%2C+Debra+L%3BHynek%2C+Brian+M%3BOstrach%2C+Lillian+R%3BBlewett%2C+David+T%3BErnst%2C+Carolyn+M%3BAnonymous&rft.aulast=Prockter&rft.aufirst=Louise&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 15 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Exploration science opportunities for students within higher education AN - 1861093454; 777408-44 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bailey, B E AU - Schmidt, G K AU - Day, B AU - Minafra, Joseph A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 1286.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861093454?accountid=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=Exploration+science+opportunities+for+students+within+higher+education&rft.au=Bailey%2C+B+E%3BSchmidt%2C+G+K%3BDay%2C+B%3BMinafra%2C+Joseph+A%3BAnonymous&rft.aulast=Bailey&rft.aufirst=B&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Engaging students, teachers, and the public with NASA astromaterials research and exploration science (ARES) assets AN - 1861093448; 777408-39 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Graff, Paige V AU - Foxworth, S AU - Kascak, A AU - Luckey, M K AU - Mcinturff, B AU - Runco, S AU - Willis, K J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 2558.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861093448?accountid=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=Engaging+students%2C+teachers%2C+and+the+public+with+NASA+astromaterials+research+and+exploration+science+%28ARES%29+assets&rft.au=Graff%2C+Paige+V%3BFoxworth%2C+S%3BKascak%2C+A%3BLuckey%2C+M+K%3BMcinturff%2C+B%3BRunco%2C+S%3BWillis%2C+K+J%3BAnonymous&rft.aulast=Graff&rft.aufirst=Paige&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 4 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Diurnally modulating neutron flux in the Moon's high-latitude; evidence for transported hydrogen volatiles and/ or complex regolith compositions in topographic slopes AN - 1861093445; 777408-18 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 - Parsons, A AU - Starr, R D AU - Evans, L G AU - Sanin, A AU - Litvak, M AU - Livengood, T AU - Sagdeev, R AU - Su, J J AU - Murray, J AU - Bodnarik, J AU - Hamara, D AU - Williams, J P AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 2646.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861093445?accountid=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=Diurnally+modulating+neutron+flux+in+the+Moon%27s+high-latitude%3B+evidence+for+transported+hydrogen+volatiles+and%2F+or+complex+regolith+compositions+in+topographic+slopes&rft.au=McClanahan%2C+Timothy+P%3BMitrofanov%2C+I+G%3BBoynton%2C+W+V%3BChin%2C+G%3BParsons%2C+A%3BStarr%2C+R+D%3BEvans%2C+L+G%3BSanin%2C+A%3BLitvak%2C+M%3BLivengood%2C+T%3BSagdeev%2C+R%3BSu%2C+J+J%3BMurray%2C+J%3BBodnarik%2C+J%3BHamara%2C+D%3BWilliams%2C+J+P%3BAnonymous&rft.aulast=McClanahan&rft.aufirst=Timothy&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 13 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Deep Martian "craters" (or collapse features) with high depth/diameter ratios; outstanding questions related to processes and timing AN - 1861093442; 777406-73 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Michalski, J R AU - Bleacher, J E AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 1611.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861093442?accountid=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=Deep+Martian+%22craters%22+%28or+collapse+features%29+with+high+depth%2Fdiameter+ratios%3B+outstanding+questions+related+to+processes+and+timing&rft.au=Michalski%2C+J+R%3BBleacher%2C+J+E%3BAnonymous&rft.aulast=Michalski&rft.aufirst=J&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 8 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Genesis solar wind science canister components curated as potential solar wind collectors and reference contamination sources AN - 1861093441; 777406-21 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Allton, Judith H AU - Gonzalez, C P AU - Allums, K K AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 1171.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861093441?accountid=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=Genesis+solar+wind+science+canister+components+curated+as+potential+solar+wind+collectors+and+reference+contamination+sources&rft.au=Allton%2C+Judith+H%3BGonzalez%2C+C+P%3BAllums%2C+K+K%3BAnonymous&rft.aulast=Allton&rft.aufirst=Judith&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 18 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - International observe the Moon Night; engaging a global audience in NASA planetary science and exploration AN - 1861093437; 777408-36 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Jones, Andrea J P AU - Bleacher, L V AU - Shaner, A AU - Day, B AU - Buxner, S AU - Wenger, M AU - Joseph, C S AU - Gay, P AU - Gurton, S AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 2899.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861093437?accountid=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=International+observe+the+Moon+Night%3B+engaging+a+global+audience+in+NASA+planetary+science+and+exploration&rft.au=Jones%2C+Andrea+J+P%3BBleacher%2C+L+V%3BShaner%2C+A%3BDay%2C+B%3BBuxner%2C+S%3BWenger%2C+M%3BJoseph%2C+C+S%3BGay%2C+P%3BGurton%2C+S%3BAnonymous&rft.aulast=Jones&rft.aufirst=Andrea+J&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 1 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Apatite-melt partitioning at 1 bar; an assessment of apatite-melt exchange equilibria resulting from non-ideal mixing of F and Cl in apatite AN - 1861093425; 777408-30 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - McCubbin, Francis M AU - Ustunisik, G AU - Vander Kaaden, K E AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 1184.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861093425?accountid=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=Apatite-melt+partitioning+at+1+bar%3B+an+assessment+of+apatite-melt+exchange+equilibria+resulting+from+non-ideal+mixing+of+F+and+Cl+in+apatite&rft.au=McCubbin%2C+Francis+M%3BUstunisik%2C+G%3BVander+Kaaden%2C+K+E%3BAnonymous&rft.aulast=McCubbin&rft.aufirst=Francis&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 21 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The atmospheric evolution of magma-ocean worlds; application to the early Moon and exoplanets AN - 1861092826; 777406-26 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Saxena, Prabal AU - Petro, N E AU - Mandell, A M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 1242.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861092826?accountid=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=The+atmospheric+evolution+of+magma-ocean+worlds%3B+application+to+the+early+Moon+and+exoplanets&rft.au=Saxena%2C+Prabal%3BPetro%2C+N+E%3BMandell%2C+A+M%3BAnonymous&rft.aulast=Saxena&rft.aufirst=Prabal&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 13 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Paleotopography of erosional unconformity, base of Stimson Formation, Gale Crater, Mars AN - 1861092825; 777406-84 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Watkins, J AU - Grotzinger, J AU - Stein, N AU - Banham, S G AU - Gupta, S AU - Rubin, D AU - Stack, K M AU - Edgett, K S AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 2939.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861092825?accountid=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=Paleotopography+of+erosional+unconformity%2C+base+of+Stimson+Formation%2C+Gale+Crater%2C+Mars&rft.au=Watkins%2C+J%3BGrotzinger%2C+J%3BStein%2C+N%3BBanham%2C+S+G%3BGupta%2C+S%3BRubin%2C+D%3BStack%2C+K+M%3BEdgett%2C+K+S%3BAnonymous&rft.aulast=Watkins&rft.aufirst=J&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 5 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Small particulate contamination study of Genesis flight sample 61423 AN - 1861092815; 777406-18 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Kuhlman, Kim R AU - Schmeling, M AU - Gonzalez, C P AU - Allums, K K AU - Allton, J H AU - Burnett, D S AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 2499.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861092815?accountid=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=Small+particulate+contamination+study+of+Genesis+flight+sample+61423&rft.au=Kuhlman%2C+Kim+R%3BSchmeling%2C+M%3BGonzalez%2C+C+P%3BAllums%2C+K+K%3BAllton%2C+J+H%3BBurnett%2C+D+S%3BAnonymous&rft.aulast=Kuhlman&rft.aufirst=Kim&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 4 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Using combination of near surface SIMS and ToF-SIMS depth profiles as a success criteria for genesis solar wind collector cleaning AN - 1861092810; 777406-15 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Goreva, Y S AU - Burnett, D S AU - Jurewicz, A J AU - Guan, Y AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 2253.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861092810?accountid=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=Using+combination+of+near+surface+SIMS+and+ToF-SIMS+depth+profiles+as+a+success+criteria+for+genesis+solar+wind+collector+cleaning&rft.au=Goreva%2C+Y+S%3BBurnett%2C+D+S%3BJurewicz%2C+A+J%3BGuan%2C+Y%3BAnonymous&rft.aulast=Goreva&rft.aufirst=Y&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 9 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Indications of meltwater-driven gully formation in Moni Crater, Mars AN - 1861092588; 777406-64 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Glines, Natalie H AU - Gulick, V C AU - Freeman, P M AU - Rodriguez, J A P AU - Hargitai, H AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 2464.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861092588?accountid=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=Indications+of+meltwater-driven+gully+formation+in+Moni+Crater%2C+Mars&rft.au=Glines%2C+Natalie+H%3BGulick%2C+V+C%3BFreeman%2C+P+M%3BRodriguez%2C+J+A+P%3BHargitai%2C+H%3BAnonymous&rft.aulast=Glines&rft.aufirst=Natalie&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 18 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Spectral unmixing of CRISM hyperspectral data over Southwest Melas Chasma, Mars AN - 1861092587; 777406-61 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Liu, Yang AU - Glotch, T D AU - Scudder, N A AU - Kraner, M L AU - Condus, T AU - Arvidson, R E AU - Guinness, E A AU - Wolff, M J AU - Smith, M D AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 2838.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861092587?accountid=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=Spectral+unmixing+of+CRISM+hyperspectral+data+over+Southwest+Melas+Chasma%2C+Mars&rft.au=Liu%2C+Yang%3BGlotch%2C+T+D%3BScudder%2C+N+A%3BKraner%2C+M+L%3BCondus%2C+T%3BArvidson%2C+R+E%3BGuinness%2C+E+A%3BWolff%2C+M+J%3BSmith%2C+M+D%3BAnonymous&rft.aulast=Liu&rft.aufirst=Yang&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 21 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Mineralogical and Geochemical Trends in a Fluviolacustrine Sequence in Gale Crater, Mars AN - 1861092452; 782771-82 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Rampe, E AU - Ming, D AU - Morris, R AU - Blake, D AU - Vaniman, D AU - Bristow, T AU - Chipera, S AU - Yen, A AU - Grotzinger, J AU - Farmer, J AU - Des Marais, D AU - Morrison, S AU - Gellert, R AU - Achilles, C AU - Downs, R AU - Treiman, A AU - Craig, P AU - Fendrich, K AU - Fairen, A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 2582 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861092452?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Mineralogical+and+Geochemical+Trends+in+a+Fluviolacustrine+Sequence+in+Gale+Crater%2C+Mars&rft.au=Rampe%2C+E%3BMing%2C+D%3BMorris%2C+R%3BBlake%2C+D%3BVaniman%2C+D%3BBristow%2C+T%3BChipera%2C+S%3BYen%2C+A%3BGrotzinger%2C+J%3BFarmer%2C+J%3BDes+Marais%2C+D%3BMorrison%2C+S%3BGellert%2C+R%3BAchilles%2C+C%3BDowns%2C+R%3BTreiman%2C+A%3BCraig%2C+P%3BFendrich%2C+K%3BFairen%2C+A%3BAnonymous&rft.aulast=Rampe&rft.aufirst=E&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=2582&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/2582.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Radar sounding by MARSIS over Lucas Planum, Mars AN - 1861092159; 777406-63 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Orosei, Roberto AU - Cantini, F AU - Caprarelli, G AU - Carter, L M AU - Papiano, I AU - Rossi, A P AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 1869.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861092159?accountid=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=Radar+sounding+by+MARSIS+over+Lucas+Planum%2C+Mars&rft.au=Orosei%2C+Roberto%3BCantini%2C+F%3BCaprarelli%2C+G%3BCarter%2C+L+M%3BPapiano%2C+I%3BRossi%2C+A+P%3BAnonymous&rft.aulast=Orosei&rft.aufirst=Roberto&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 18 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Phase equilibria of a S- and C-poor lunar core AN - 1861091764; 782772-31 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Righter, K AU - Pando, K AU - Go, B M AU - Danielson, L R AU - Habermann, M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 2631 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861091764?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Phase+equilibria+of+a+S-+and+C-poor+lunar+core&rft.au=Righter%2C+K%3BPando%2C+K%3BGo%2C+B+M%3BDanielson%2C+L+R%3BHabermann%2C+M%3BAnonymous&rft.aulast=Righter&rft.aufirst=K&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=2631&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/2631.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - H-isotopic composition of apatite in Northwest Africa 7034 AN - 1861091685; 782766-25 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Mccubbin, F M AU - Barnes, J J AU - Santos, A R AU - Boyce, J W AU - Anand, M AU - Franchi, I A AU - Agee, C B AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 2025 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861091685?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=H-isotopic+composition+of+apatite+in+Northwest+Africa+7034&rft.au=Mccubbin%2C+F+M%3BBarnes%2C+J+J%3BSantos%2C+A+R%3BBoyce%2C+J+W%3BAnand%2C+M%3BFranchi%2C+I+A%3BAgee%2C+C+B%3BAnonymous&rft.aulast=Mccubbin&rft.aufirst=F&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=2025&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/2025.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - Cooling history and redox state of NWA 8694 chassignite: Comparison with Chassigny and NWA 2737 AN - 1861091673; 782766-79 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Mikouchi, T AU - Takenouchi, A AU - Zolensky, M E AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 2079 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861091673?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Cooling+history+and+redox+state+of+NWA+8694+chassignite%3A+Comparison+with+Chassigny+and+NWA+2737&rft.au=Mikouchi%2C+T%3BTakenouchi%2C+A%3BZolensky%2C+M+E%3BAnonymous&rft.aulast=Mikouchi&rft.aufirst=T&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=2079&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/2079.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - Why are mantle melting residues still hydrous? AN - 1861091615; 782773-60 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Schaffer, L A AU - Eslier, A H P AU - Brandon, A B AU - Bizimis, M AU - Matney, M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 2760 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861091615?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Why+are+mantle+melting+residues+still+hydrous%3F&rft.au=Schaffer%2C+L+A%3BEslier%2C+A+H+P%3BBrandon%2C+A+B%3BBizimis%2C+M%3BMatney%2C+M%3BAnonymous&rft.aulast=Schaffer&rft.aufirst=L&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=2760&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/2760.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - Improving the accuracy of unit - cell parameters obtained from the CheMin instrument on Mars through an internally calibrated sample cell offset AN - 1861091418; 782767-59 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Morrison, S M AU - Downs, R T AU - Blake, D F AU - Vaniman, D T AU - Ming, D W AU - Rampe, E B AU - Bristow, T F AU - Chipera, S J AU - Yen, A S AU - Morris, R V AU - Treiman, A H AU - Sarrazin, P C AU - Chilles, C N A AU - Fendrich, K V AU - Morookian, J M AU - Crisp, J A AU - Farmer, J D AU - Des Marais, D J AU - Craig, P I AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 2159 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861091418?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Improving+the+accuracy+of+unit+-+cell+parameters+obtained+from+the+CheMin+instrument+on+Mars+through+an+internally+calibrated+sample+cell+offset&rft.au=Morrison%2C+S+M%3BDowns%2C+R+T%3BBlake%2C+D+F%3BVaniman%2C+D+T%3BMing%2C+D+W%3BRampe%2C+E+B%3BBristow%2C+T+F%3BChipera%2C+S+J%3BYen%2C+A+S%3BMorris%2C+R+V%3BTreiman%2C+A+H%3BSarrazin%2C+P+C%3BChilles%2C+C+N+A%3BFendrich%2C+K+V%3BMorookian%2C+J+M%3BCrisp%2C+J+A%3BFarmer%2C+J+D%3BDes+Marais%2C+D+J%3BCraig%2C+P+I%3BAnonymous&rft.aulast=Morrison&rft.aufirst=S&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=2159&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/2159.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - 3.2 Ga seawater sulfate implied from sulfur isotopic compositions of barite crystals in Pilbara, Western Australia AN - 1861091301; 782766-78 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Miki, T AU - Kiyokawa, S AU - Takahata, N AU - Ishida, A AU - Ito, T AU - Ikehara, M AU - Yamaguchi, K E AU - Sano, Y AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 2078 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861091301?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=3.2+Ga+seawater+sulfate+implied+from+sulfur+isotopic+compositions+of+barite+crystals+in+Pilbara%2C+Western+Australia&rft.au=Miki%2C+T%3BKiyokawa%2C+S%3BTakahata%2C+N%3BIshida%2C+A%3BIto%2C+T%3BIkehara%2C+M%3BYamaguchi%2C+K+E%3BSano%2C+Y%3BAnonymous&rft.aulast=Miki&rft.aufirst=T&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=2078&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/2078.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - Confocal Raman Imaging Spectroscopy - A window for nanoscale analysis AN - 1861091162; 782775-46 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Steele, Andrew AU - Fries, Marc AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 2946 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861091162?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Confocal+Raman+Imaging+Spectroscopy+-+A+window+for+nanoscale+analysis&rft.au=Steele%2C+Andrew%3BFries%2C+Marc%3BAnonymous&rft.aulast=Steele&rft.aufirst=Andrew&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=2946&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/2946.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - The nitrate/perchlorate ratio of martian surface materials: Implications for the nitrogen cycle on Mars AN - 1861091147; 782775-51 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Stern, Jennifer C AU - Utter, Brad S AU - Jackson, W Andrew AU - Navarro-Gonzalez, Rafael AU - Mckay, Christopher P AU - Ming, Douglas W AU - Mahaffy, Paul R AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 2951 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861091147?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=The+nitrate%2Fperchlorate+ratio+of+martian+surface+materials%3A+Implications+for+the+nitrogen+cycle+on+Mars&rft.au=Stern%2C+Jennifer+C%3BUtter%2C+Brad+S%3BJackson%2C+W+Andrew%3BNavarro-Gonzalez%2C+Rafael%3BMckay%2C+Christopher+P%3BMing%2C+Douglas+W%3BMahaffy%2C+Paul+R%3BAnonymous&rft.aulast=Stern&rft.aufirst=Jennifer&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=2951&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/2951.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - Effect of shock on H in Martian meteorite pyroxene via analogue impact experiments AN - 1861090992; 782770-78 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Peslier, Anne H AU - Cintala, Mark J AU - Cardenas, Francisco AU - Montes, Roland AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 2478 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861090992?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Effect+of+shock+on+H+in+Martian+meteorite+pyroxene+via+analogue+impact+experiments&rft.au=Peslier%2C+Anne+H%3BCintala%2C+Mark+J%3BCardenas%2C+Francisco%3BMontes%2C+Roland%3BAnonymous&rft.aulast=Peslier&rft.aufirst=Anne&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=2478&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/2478.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - Sulfur geochemistry of marine sediments at the Conrad Rise of the Southern Ocean since the last glacial AN - 1861090977; 782773-2 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Sakai, Nozomi AU - Yamaguchi, Kosei E AU - Naraoka, Hiroshi AU - Ikehara, Minoru AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 2702 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861090977?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Sulfur+geochemistry+of+marine+sediments+at+the+Conrad+Rise+of+the+Southern+Ocean+since+the+last+glacial&rft.au=Sakai%2C+Nozomi%3BYamaguchi%2C+Kosei+E%3BNaraoka%2C+Hiroshi%3BIkehara%2C+Minoru%3BAnonymous&rft.aulast=Sakai&rft.aufirst=Nozomi&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=2702&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/2702.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - Abundant solar nebula solids in comets AN - 1861090912; 782766-62 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Messenger, S AU - Keller, L P AU - Nakamura-Messenger, K AU - Nguyen, A N AU - Clemett, S AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 2062 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861090912?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Abundant+solar+nebula+solids+in+comets&rft.au=Messenger%2C+S%3BKeller%2C+L+P%3BNakamura-Messenger%2C+K%3BNguyen%2C+A+N%3BClemett%2C+S%3BAnonymous&rft.aulast=Messenger&rft.aufirst=S&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=2062&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/2062.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - Ca and Ti isotope fractionation in Ca-, Al-rich inclusions AN - 1861090908; 782774-72 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Simon, J I AU - Jordan, M K AU - Tappa, M J AU - Kohl, I E AU - Young, E D AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 2872 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861090908?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Ca+and+Ti+isotope+fractionation+in+Ca-%2C+Al-rich+inclusions&rft.au=Simon%2C+J+I%3BJordan%2C+M+K%3BTappa%2C+M+J%3BKohl%2C+I+E%3BYoung%2C+E+D%3BAnonymous&rft.aulast=Simon&rft.aufirst=J&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=2872&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/2872.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - Martian Dust Toxicity: the Problem is in the Perchlorate AN - 1861090776; 782771-88 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Rask, Jon AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 2588 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861090776?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Martian+Dust+Toxicity%3A+the+Problem+is+in+the+Perchlorate&rft.au=Rask%2C+Jon%3BAnonymous&rft.aulast=Rask&rft.aufirst=Jon&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=2588&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/2588.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Ertel potential vorticity of the Mars Polar Vortex from MGS-TES and MRO-MCS temperature soundings AN - 1861087331; 777381-83 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - McConnochie, T H AU - Toigo, A D AU - Guzewich, S D AU - Kleinboehl, A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 2979.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861087331?accountid=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=Ertel+potential+vorticity+of+the+Mars+Polar+Vortex+from+MGS-TES+and+MRO-MCS+temperature+soundings&rft.au=McConnochie%2C+T+H%3BToigo%2C+A+D%3BGuzewich%2C+S+D%3BKleinboehl%2C+A%3BAnonymous&rft.aulast=McConnochie&rft.aufirst=T&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 7 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Water in lunar craters from LRO observations AN - 1861087313; 777380-66 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Litvak, M L AU - Sanin, A B AU - Mitrofanov, I G AU - Bakhtin, B N AU - Boynton, W V AU - Bodnarik, J G AU - Chin, G AU - Evans, L G AU - Livengood, T A AU - Malakhov, A V AU - McClanahan, T P AU - Mokrousov, M I AU - Starr, R D AU - Sagdeev, R Z AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 1939.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861087313?accountid=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=Water+in+lunar+craters+from+LRO+observations&rft.au=Litvak%2C+M+L%3BSanin%2C+A+B%3BMitrofanov%2C+I+G%3BBakhtin%2C+B+N%3BBoynton%2C+W+V%3BBodnarik%2C+J+G%3BChin%2C+G%3BEvans%2C+L+G%3BLivengood%2C+T+A%3BMalakhov%2C+A+V%3BMcClanahan%2C+T+P%3BMokrousov%2C+M+I%3BStarr%2C+R+D%3BSagdeev%2C+R+Z%3BAnonymous&rft.aulast=Litvak&rft.aufirst=M&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 8 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Shielding of organic compounds from radiation effects by Mars analog minerals AN - 1861086882; 777380-6 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Ertem, G AU - Cooper, G AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 2123.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861086882?accountid=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=Shielding+of+organic+compounds+from+radiation+effects+by+Mars+analog+minerals&rft.au=Ertem%2C+G%3BCooper%2C+G%3BAnonymous&rft.aulast=Ertem&rft.aufirst=G&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 9 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Water in the cratonic mantle lithosphere AN - 1861086486; 784664-81 AB - The fact that Archean and Proterozoic cratons are underlain by the thickest (>200 km) lithosphere on Earth has always puzzled scientists because the dynamic convection of the surrounding asthenosphere would be expected to delaminate and erode these mantle lithospheric "keels" over time. Although density and temperature of the cratonic lithosphere certainly play a role in its strength and longevity [1,2], the role of water has only been recently addressed with data on actual mantle samples. Water in mantle lithologies (primarily peridotites and pyroxenites) is mainly stored in nominally anhydrous minerals (olivine, pyroxene, garnet) where it is incorporated as hydrogen bonded to structural oxygen in lattice defects [3]. The property of hydrolytic weakening of olivine [4] has generated the hypothesis that olivine, the main mineral of the upper mantle, may be dehydrated in cratonic mantle lithospheres, contributing to its strength [2]. This presentation will review the distribution of water concentrations in four cratonic lithospheres. The distribution of water contents in olivine from peridotite xenoliths found in kimberlites is different in each craton (Figure 1). The range of water contents of olivine, pyroxene and garnet at each xenolith location appears linked to local metasomatic events, some of which occurred later then the Archean and Proterozoic when these peridotites initially formed via melting [5-8]. Although the low olivine water contents ( 6 GPa at the base of the Kaapvaal cratonic lithosphere may contribute to its strength, and prevent its delamination [9], the wide range of those from Siberian xenoliths is not compatible with providing a high enough viscosity contrast with the asthenophere [6]. The water content in olivine inclusions from Siberian diamonds, on the other hand, have systematically low water contents (<20 ppm wt H2O, [10,11]). The xenoliths may represent a biased sample of the cratonic lithosphere with an over-abundance of metasomatized peridotites with high water contents. The olivine inclusions, however, may have been protected from metasomatism by their host diamond and record the overall low olivine water content of the cratonic lithosphere. Water may thus still play a role in cratonic keel longevity. Olivine H2O (ppm wt) Figure 1: Olivine water contents in minerals 0" 100" 200" 300" from cratonic xenoliths and inclusions in 1" Kaapvaal&xenoliths& Slave&xenoliths&Lac&de&Gras& diamonds versus pressure of equilibration. Data 2" Siberian&xenoliths&Udachnaya& from [6,9-13] & unpublished by Peslier. Siberian&diamond&inclusions& Tanzanian&xenoliths&Labait& 3" JF - International Geological Congress, Abstracts = Congres Geologique International, Resumes AU - Peslier, A H AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 1650 PB - [International Geological Congress], [location varies] VL - 35 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861086486?accountid=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+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.atitle=Water+in+the+cratonic+mantle+lithosphere&rft.au=Peslier%2C+A+H%3BAnonymous&rft.aulast=Peslier&rft.aufirst=A&rft.date=2016-01-01&rft.volume=35&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.issn=&rft_id=info:doi/ L2 - http://www.americangeosciences.org/sites/default/files/igc/1650.pdf LA - English DB - GeoRef N1 - Conference title - 35th international geological congress 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 International Geological Congress Organizational Committee N1 - Last updated - 2017-01-24 N1 - CODEN - IGABBY ER - TY - JOUR T1 - New Discoveries in the late Neoproterozoic of Namibia: New Material-New Analysis AN - 1861086290; 784662-46 AB - Over the past 15 years UNESCO Projects IGCP493 /587 have concentrated efforts by a consortium of researchers from around the world on the detailed field documentation and exploration of the Nama Group in southern Nambia, an important sequence recording how life so changed from 600 to 530 million years ago - across the Precambrian-Cambrian boundary. An impressive collection of material from the area around Aus has increased the up until then known fossil material [1] many fold in those years [2-6]. New scanning and analytic techniques, involving facilities such as the Australian synchrotron, and in depth reconstruction art and use of new graphic programs, along with a detailed sedimentology of deposits preserving these new discoveries have led to a marked improvement in the understanding of both the morphology and relationships of the organisms, the environments they inhabited and the effects imposed by how they were preserved. JF - International Geological Congress, Abstracts = Congres Geologique International, Resumes AU - Vickers-Rich, P AU - Trusler, P W AU - Narbonne, G M AU - Sharp, A AU - Ivantsov, A Yu AU - Linnemann, U AU - Hofmann, M AU - Kriesfeld, L AU - Kaufman, A J AU - Cui, H AU - Smith, J AU - Hoffmann, K H AU - Schneider, G AU - Elliott, D AU - Fedonkin, M A AU - Hall, M AU - Rich, T H AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 1291 PB - [International Geological Congress], [location varies] VL - 35 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861086290?accountid=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+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.atitle=New+Discoveries+in+the+late+Neoproterozoic+of+Namibia%3A+New+Material-New+Analysis&rft.au=Vickers-Rich%2C+P%3BTrusler%2C+P+W%3BNarbonne%2C+G+M%3BSharp%2C+A%3BIvantsov%2C+A+Yu%3BLinnemann%2C+U%3BHofmann%2C+M%3BKriesfeld%2C+L%3BKaufman%2C+A+J%3BCui%2C+H%3BSmith%2C+J%3BHoffmann%2C+K+H%3BSchneider%2C+G%3BElliott%2C+D%3BFedonkin%2C+M+A%3BHall%2C+M%3BRich%2C+T+H%3BAnonymous&rft.aulast=Vickers-Rich&rft.aufirst=P&rft.date=2016-01-01&rft.volume=35&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.issn=&rft_id=info:doi/ L2 - http://www.americangeosciences.org/sites/default/files/igc/1291.pdf LA - English DB - GeoRef N1 - Conference title - 35th international geological congress N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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Reference includes data supplied by International Geological Congress Organizational Committee N1 - Last updated - 2017-01-24 N1 - CODEN - IGABBY ER - TY - JOUR T1 - Maven-validated model implications for insight measurements AN - 1861084883; 777381-89 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Luhmann, J G AU - Ma, Y J AU - Dong, C AU - Chi, P J AU - Russell, C T AU - Curry, S M AU - Espley, J AU - Connerney, J E AU - Jakosky, B M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 2926.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861084883?accountid=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=Maven-validated+model+implications+for+insight+measurements&rft.au=Luhmann%2C+J+G%3BMa%2C+Y+J%3BDong%2C+C%3BChi%2C+P+J%3BRussell%2C+C+T%3BCurry%2C+S+M%3BEspley%2C+J%3BConnerney%2C+J+E%3BJakosky%2C+B+M%3BAnonymous&rft.aulast=Luhmann&rft.aufirst=J&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 5 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Initial experiments with the sample analysis at Mars onboard calibration gas cell AN - 1861084768; 777381-88 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Franz, Heather B AU - Trainer, Melissa G AU - Malespin, C A AU - Mahaffy, P R AU - Conrad, P G AU - Eigenbrode, J L AU - Flesch, G AU - Manning, H L K AU - Raaen, E AU - Webster, C R AU - Wong, M H AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 2015.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861084768?accountid=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=Initial+experiments+with+the+sample+analysis+at+Mars+onboard+calibration+gas+cell&rft.au=Franz%2C+Heather+B%3BTrainer%2C+Melissa+G%3BMalespin%2C+C+A%3BMahaffy%2C+P+R%3BConrad%2C+P+G%3BEigenbrode%2C+J+L%3BFlesch%2C+G%3BManning%2C+H+L+K%3BRaaen%2C+E%3BWebster%2C+C+R%3BWong%2C+M+H%3BAnonymous&rft.aulast=Franz&rft.aufirst=Heather&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 9 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Experimental insights into the origin of the Stannern group eucrites AN - 1861084666; 777380-46 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Jones, John H AU - Shearer, C K, Jr AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 1098.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861084666?accountid=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=Experimental+insights+into+the+origin+of+the+Stannern+group+eucrites&rft.au=Jones%2C+John+H%3BShearer%2C+C+K%2C+Jr%3BAnonymous&rft.aulast=Jones&rft.aufirst=John&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 8 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Dehydration-rehydration experiments with Cl salts mixed into Mars analog materials and the effects on their VNIR spectral properties AN - 1861084615; 777381-42 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bishop, J L AU - Davila, A AU - Hanley, J AU - Roush, T L AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 1645.pdf PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861084615?accountid=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=Dehydration-rehydration+experiments+with+Cl+salts+mixed+into+Mars+analog+materials+and+the+effects+on+their+VNIR+spectral+properties&rft.au=Bishop%2C+J+L%3BDavila%2C+A%3BHanley%2C+J%3BRoush%2C+T+L%3BAnonymous&rft.aulast=Bishop&rft.aufirst=J&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 10 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Linking spatial and temporal biological diversity to megafan formations using remote sensing techniques space-based technologies AN - 1861084597; 784690-19 AB - Linking past geologic events and current, local biodiversity through the use of space-based observations offers a significant advance in biodiversity prediction at a regional scale. Understanding and predicting biodiversity efficiently, rapidly and remotely becomes important as human populations grow and shift during a period of enhanced climate change. Few places on the Earth have higher levels of biodiversity or remain as remote as the Amazon Basin. Previous biodiversity estimates here described a general northeast-southwest trend in faunal diversity with no commonalities between these regions in the top ten most frequently detected plant species. This large, basin-wide scale shift in diversity was linked to sediment ages and soil composition, with Cenozoic sediments in the northeast and Proterozoic/Paleozoic sediments in the southwest. These large-scale perspectives are the context for finer-scale geographic patterns in soils of similar geologic age that also explain local shifts in biodiversity. Soil type can then be used to predict biological compositions without direct sampling. But soil and topographic variations that are nearly imperceptible on the ground prevent understanding of local-scale shifts in biodiversity. However, space-based topographic mapping data (SRTM--Shuttle Radar Topography Mission data) has enabled construction of new topographical roughness maps. These maps reveal many geomorphic discontinuities in western and central Amazonia. Combined with space-based infra-red maps and the SRTM topographic data of the region, the roughness maps strongly suggest discontinuities both in soils and sediment geochemical conditions and physical composition over 101-103 m scales. Based on a world geomorphic survey of megafans-large (>100 km long), fan-shaped, river-generated sediment bodies of very low declivity, processually different from smaller, better known alluvial fans-the Amazonian soil discontinuities are seen to accord with fluvial patterns that are common on megafan surfaces. Detailed topographic mapping based on data from sensors in space can make major strides in explaining changes in soil origin and relative soil age. By developing a space-based model for predicting biodiversity and soil composition, a significant impact on understanding multiple dimensions of biodiversity in the Amazon Basin can be achieved, at scales not physically possible to measure directly. JF - International Geological Congress, Abstracts = Congres Geologique International, Resumes AU - Mills, H J AU - Wilkinson, M J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 5645 PB - [International Geological Congress], [location varies] VL - 35 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861084597?accountid=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+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.atitle=Linking+spatial+and+temporal+biological+diversity+to+megafan+formations+using+remote+sensing+techniques+space-based+technologies&rft.au=Mills%2C+H+J%3BWilkinson%2C+M+J%3BAnonymous&rft.aulast=Mills&rft.aufirst=H&rft.date=2016-01-01&rft.volume=35&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.issn=&rft_id=info:doi/ L2 - http://www.americangeosciences.org/sites/default/files/igc/5645.pdf LA - English DB - GeoRef N1 - Conference title - 35th international geological congress 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 International Geological Congress Organizational Committee N1 - Last updated - 2017-01-24 N1 - CODEN - IGABBY ER - TY - JOUR T1 - The Antarctic and Greenland ice sheet contribution to global sea level rise AN - 1861084476; 784689-56 AB - Fluctuations in the mass of ice stored in Antarctica and Greenland are of considerable societal importance. The Ice Sheet Mass Balance Inter-Comparison Exercise (IMBIE) is a joint-initiative of ESA and NASA aimed at producing a single estimate of the global sea level contribution to polar ice sheet losses. Within IMBIE, estimates of ice sheet mass balance are developed from a variety of satellite geodetic techniques using a common spatial and temporal reference frame and a common appreciation of the contributions due to external signals. The project brings together the laboratories and space agencies that have been instrumental in developing independent estimates of ice sheet mass balance to date. In its first phase, IMBIE involved 27 science teams, and delivered a first community assessment of ice sheet mass imbalance to replace 40 individual estimates. The project established that (i) there is good agreement between the three main satellite-based techniques for estimating ice sheet mass balance, (ii) combining satellite data sets leads to significant improvement in certainty, (iii) the polar ice sheets contributed 11 + or - 4 mm to global sea levels between 1992 and 2012, and (iv) that combined ice losses from Antarctica and Greenland have increased over time, rising from 10% of the global trend in the early 1990's to 30% in the late 2000's. Demand for an updated assessment has grown, and there are now new satellite missions, new geophysical corrections, new techniques, and new teams producing data. The period of overlap between independent satellite techniques has increased from 5 to 12 years, and the full period of satellite data over which an assessment can be performed has increased from 19 to 40 years. It is also clear that multiple satellite techniques are required to confidently separate mass changes associated with snowfall and ice dynamical imbalance - information that is of critical importance for climate modelling. In the years since the first IMBIE assessment, more than 80 new estimates of ice sheet mass balance have been published. These studies point to continued mass losses from both ice sheets. In Greenland, the rate of ice loss stabilized in 2013, consistent with changes in the local meteorological conditions which have led to reduced melting and increased snowfall. In Antarctica, the latest measurements from CryoSat-2 point to further increases in ice losses. In light of all of these developments, it is now time for an updated community assessment of ice sheet mass balance. This presentation outlines the approach for the second phase of IMBIE, including the project organisation, the work programme and schedule, the main science goals, and its current status, and reviews the recent and historical contributions that the Antarctic and Greenland ice sheets have made to global sea level rise JF - International Geological Congress, Abstracts = Congres Geologique International, Resumes AU - Shepherd, A AU - Ivins, E AU - Briggs, K H AU - Hogg, A E AU - Joughin, I R AU - Krinner, G AU - Moyano, G AU - Nowicki, S AU - Payne, A J AU - Rignot, E J AU - Scambos, T AU - Schlegel, N AU - Smith, B AU - van den Broeke, M R AU - Velicogna, I AU - Whitehouse, P AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 5543 PB - [International Geological Congress], [location varies] VL - 35 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861084476?accountid=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+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.atitle=The+Antarctic+and+Greenland+ice+sheet+contribution+to+global+sea+level+rise&rft.au=Shepherd%2C+A%3BIvins%2C+E%3BBriggs%2C+K+H%3BHogg%2C+A+E%3BJoughin%2C+I+R%3BKrinner%2C+G%3BMoyano%2C+G%3BNowicki%2C+S%3BPayne%2C+A+J%3BRignot%2C+E+J%3BScambos%2C+T%3BSchlegel%2C+N%3BSmith%2C+B%3Bvan+den+Broeke%2C+M+R%3BVelicogna%2C+I%3BWhitehouse%2C+P%3BAnonymous&rft.aulast=Shepherd&rft.aufirst=A&rft.date=2016-01-01&rft.volume=35&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.issn=&rft_id=info:doi/ L2 - http://www.americangeosciences.org/sites/default/files/igc/5543.pdf LA - English DB - GeoRef N1 - Conference title - 35th international geological congress 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 International Geological Congress Organizational Committee N1 - Last updated - 2017-01-24 N1 - CODEN - IGABBY ER - TY - JOUR T1 - Megafans of the Northern Kalahari Basin AN - 1861083851; 784690-20 AB - We identify eleven megafans (partial cones of fluvial sediment, >80 km radius) in the northern Kalahari Basin, using several criteria based on VIS and IR remotely sensed data and SRTM-based surface morphology reconstructions. Two other features meet fewer criteria of the form which we class as possible megafans. The northern Kalahari megafans are located in a 1700 km arc around the southern and eastern flanks of the Angola's Bie Plateau, from northern Namibia through northwest Botswana to western Zambia. Three lie in the Owambo subbasin centered on the Etosha Pan, three in the relatively small Okavango rift depression, and five in the Upper Zambezi basin. The population includes the well-known Okavango megafan (150 km), Namibia's Cubango megafan, the largest megafan in the region (350 km long), and the largest nested group (the five major contiguous megafans on the west slopes of the upper Zambezi Valley). We use new, SRTM-based topographic roughness data to discriminate various depositional surfaces within the flat N. Kalahari landscapes. We introduce the concepts of divide megafans, derived megafans, and fan-margin rivers. Conclusions. (i) Eleven megafan cones total an area of approximately 190,000 km2. (ii) Different controls on megafan size operate in the three component basins: in the Okavango rift structural controls become the prime constraint on megafan length by controlling basin dimensions. Megafans in the other les constricted basins appear to conform to classic relationships fan area, slope, and feeder-basin area. (iii) Active fans occupy the Okavango rift depression with one in the Owambo basin. The rest of the population are relict but recently active fans (surfaces are relict with respect to activity by the feeder river). (iv) Avulsive behavior of the formative river-axiomatic for the evolution of megafans-has resulted in repeated rearrangements of regional drainage, with likely effects in the study area well back into the Neogene. Divide megafans comprise the majority of the identified features, some of which have delivered water and sediment alternately to neighboring basins in the course of normal avulsion activity, likely resulting in significant changes in the hydrologies of two of the study-area subbasins. (v) Paleoclimatic inferences extracted from fluvial and lacustrine sediments therefore need to take account of avulsion-driven drainage configurations, especially where these are autogenically controlled. JF - International Geological Congress, Abstracts = Congres Geologique International, Resumes AU - Wilkinson, M J AU - Miller, R McG AU - Eckardt, F AU - Kreslavsky, M A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 5646 PB - [International Geological Congress], [location varies] VL - 35 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861083851?accountid=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+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.atitle=Megafans+of+the+Northern+Kalahari+Basin&rft.au=Wilkinson%2C+M+J%3BMiller%2C+R+McG%3BEckardt%2C+F%3BKreslavsky%2C+M+A%3BAnonymous&rft.aulast=Wilkinson&rft.aufirst=M&rft.date=2016-01-01&rft.volume=35&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.issn=&rft_id=info:doi/ L2 - http://www.americangeosciences.org/sites/default/files/igc/5646.pdf LA - English DB - GeoRef N1 - Conference title - 35th international geological congress 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 International Geological Congress Organizational Committee N1 - Last updated - 2017-01-24 N1 - CODEN - IGABBY ER - TY - JOUR T1 - 3.2 Ga sedimentary environment implied from heterogeneity of sulfur isotopic compositions of barite beds in Pilbara, Western Australia AN - 1861082055; 784685-55 AB - Sulfur isotopic ratio (d34S) of past sulfate minerals is a good proxy for redox state and microbial sulfate reducing system in the Precambrian. However, reports of d34S of Archean sulfate are scarce because of the limited occurrences of sulfate deposits and difficulties in analyses for trace amounts of sulfate. Therefore, we focused on newly discovered sedimentary barite (BaSO4) layers from the 3.2Ga Dixon Island Formation, which is considered to have been deposited in a relatively deep open sea environment [1]. The Dixon Island Formation is located in the coastal Pilbara terrane, Western Australia and shows low metamorphic grade [2]. We can see pyrite layers of a few millimeters thick which make an alternate layers with black chert layers in the Varicolored Chert Member. The bulk d34S values of these layers are -10.1 to +26.8ppm [3] and micro-meter scale heterogeneity of d34S can be seen in minute spherical shell pyrite which was formed at early stage of diagenesis [4]. On the other hand, barite layers in the Black Chert Member of the Dixon Island Formation overlies hydrothermal vein networks. Though most of them are silicified [1], there exist small crystals of barite (less than 200 mu m in diameter) which are regarded to be remnants of original barite. We crushed three rock samples from different horizons, separated three to five fine barite grains respectively and twelve in total, and performed micro-meter scale d34S analyses using a NanoSIMS. We used five sedimentary barites as working standards which are considered to have d34S homogeneity in each crystal determined by an isotope ratio mass spectrometer. For measuring samples, we performed raster analyses of two or three spots for each crystal, and values were averaged. As a result, we obtained scattered d34S values of -2.1 + or - 1.1 to +18.7 + or - 0.9ppm (Avg. = +6.5 + or - 6.3ppm) from twelve crystals. On the other hand, averages in each rock sample were +3.4 + or - 5.8, +7.8 + or - 8.0 and +8.4 + or - 3.6ppm. Averages for each rock sample are similar to literature values of Archean sulfate (ca. +5-10ppm, e.g. [5]). Meanwhile, focusing on the range of values of each crystal, lower ones were near d34S of mantle-originated sulfur (ca. 0ppm). Besides, higher ones were near d34S of modern seawater sulfate (+22ppm) and thus higher than Archean sulfate. There are two possible causes of the dispersion of d34S of barite crystals in the same beds: 1) change in hydrothermal activities or 2) effect of a gradual microbial sulfate reduction in a sulfate-limited condition (Rayleigh fractionation). However, no change in mineral occurrences and rock facies eliminate the former. Moreover, fluctuations of bulk d34S and micro-meter scale heterogeneity of d34S of pyrite possibly supports the latter. JF - International Geological Congress, Abstracts = Congres Geologique International, Resumes AU - Miki, T AU - Kiyokawa, S AU - Takahata, N AU - Ishida, A AU - Ito, T AU - Ikehara, M AU - Yamaguchi, K E AU - Sano, Y AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 4917 PB - [International Geological Congress], [location varies] VL - 35 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861082055?accountid=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+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.atitle=3.2+Ga+sedimentary+environment+implied+from+heterogeneity+of+sulfur+isotopic+compositions+of+barite+beds+in+Pilbara%2C+Western+Australia&rft.au=Miki%2C+T%3BKiyokawa%2C+S%3BTakahata%2C+N%3BIshida%2C+A%3BIto%2C+T%3BIkehara%2C+M%3BYamaguchi%2C+K+E%3BSano%2C+Y%3BAnonymous&rft.aulast=Miki&rft.aufirst=T&rft.date=2016-01-01&rft.volume=35&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.issn=&rft_id=info:doi/ L2 - http://www.americangeosciences.org/sites/default/files/igc/4917.pdf LA - English DB - GeoRef N1 - Conference title - 35th international geological congress 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 International Geological Congress Organizational Committee N1 - Last updated - 2017-01-24 N1 - CODEN - IGABBY ER - TY - JOUR T1 - Africa's megafans and their tectonic habitat AN - 1861081219; 784687-36 AB - Megafans are large fluvial sediment bodies, fan-shaped in planform, defined here as >80 km long. Africa's megafans were mapped both for comprehensive geomorphic description and as a method of mapping the largest probable fluvial sediment bodies (in unconfined settings, most unexamined, versus confined, floodplain sediment bodies) by remote sensing means. Our criteria were: a river crossing a topographic margin from upland to lowland; a smooth, low angle coniform plain (the river entering the plain at/near the apex, roughness measured from SRTM data); a length dimension of >80 km and maximum width >40 km; and a radial drainage pattern. To obviate possible confusion with deltas, we excluded fanlike features that reach the coastline. Visible and especially IR imagery was used to identify the features. We identified 94 megafans. Distribution patterns markedly followed the basin-and-swell topography [1] that characterizes Africa's modern landscapes. Although clearly visible, most of the features identified are inactive due to incision by the source river into fan surfaces. Two tectonic habitats control the location of megafans. (i) Swell flanks. Megafans are apexed at the topographic margin of most of Africa's swells, extending into those basins large enough to accommodate them. Such megafans are often clustered in groups of 3-7, as e.g., on the west side of the Hoggar Swell (Algeria), on north and south flanks of the Tibesti Swell (Libya-Chad borderlands), on the east flank of Africa's largest East African Swell in Kenya, and those on the east and south sides of Angola's Bie Swell (western Zambia and northern Namibia). Clusters of possible fans, not meeting all criteria, lie on the Congo Basin margin of the Mayombe Swell, and on the coast-facing margin of the Namibia Swell. Two of the largest lie in W/NW Africa, the Teghahart megafan of southern Algeria (378 km, Hoggar Swell), and the Wadi Albalata megafan in western Egypt (340 km, Uweinat Swell). In southern Africa the two largest are the Cubango (320 km) on the southern margin of Angola's Bie Swell), and the Limpopo (230 km) that is apexed at the South Africa-Mozambican border (the largest of a small group of megafans located in Africa's coastal lowlands). (ii) Rifts. (ii.a) Rift basins. About 26 megafans have developed within rifts or over rift depressions. Although most rifts are too narrow to provide a transverse dimension large enough to form megafans >80 long, the main group developed lies in the wide Muglad Rift of South Sudan (n=14). Three megafans cluster in the Okavango Rift (NW Botswana and NE Namibia). Other rift-related groups are three large megafans SE of Lake Chad (S Chad) and one unusual megafan, the Salamat feature (Central African Republic), that is oriented parallel with the rift axis, and is consequently one of the longest in Africa (465 km). Interestingly this megafan occupies a rift depression atop the Nile-Congo Swell. (ii.b) Rift exterior slopes. Shoulders of the East African Rift (EAR) display several megafans produced by rivers aligned away from the shoulders that lead into wide basins, especially in Kenya and South Sudan. Africa's largest is the Nile megafan (476 km) that has built the vast Sudd wetland (SE South Sudan). An explanation for its size may be its and location at the meeting point of three tectonic zones, the Ethiopian Swell margin, exterior margin of the western arm of the EAR, and the Muglad rift. Discharge of the River Nile, the largest in the region, has allowed the Nile megafan to outcompete neighboring megafans for space. JF - International Geological Congress, Abstracts = Congres Geologique International, Resumes AU - Wilkinson, M J AU - Burke, K AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 5204 PB - [International Geological Congress], [location varies] VL - 35 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861081219?accountid=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+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.atitle=Africa%27s+megafans+and+their+tectonic+habitat&rft.au=Wilkinson%2C+M+J%3BBurke%2C+K%3BAnonymous&rft.aulast=Wilkinson&rft.aufirst=M&rft.date=2016-01-01&rft.volume=35&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.issn=&rft_id=info:doi/ L2 - http://www.americangeosciences.org/sites/default/files/igc/5204.pdf LA - English DB - GeoRef N1 - Conference title - 35th international geological congress 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 International Geological Congress Organizational Committee N1 - Last updated - 2017-01-24 N1 - CODEN - IGABBY ER - TY - JOUR T1 - Evaluation of satellite remote sensing albedo retrievals over the ablation area of the southwestern Greenland ice sheet AN - 1861077880; 784672-24 AB - Greenland ice sheet (GrIS) surface albedo has declined considerably in recent decades, with the greatest reduction in the lower southwestern ablation area. Monitoring changes in surface albedo is crucial given its importance in modulating the surface energy balance, and thus, melt and mass balance of the ice sheet. Moderate Resolution Imaging Spectroradiometer (MODIS) albedo products are typically used to characterize changes in ice sheet albedo. Remotely sensed albedo retrievals have been validated with ground albedo measurements from distributed automatic weather stations. However, these studies assume that both satellite and in situ observations are captured within the same spatial domain. Unless the surface is homogeneous or an adequate number of dispersed ground point measurements are collected within a pixel during satellite overpasses, then a direct 'point-to-pixel' comparison is insufficient. Here, we adapt Roman et al.'s [1] method to perform a robust spatial inter-comparison of in situ spectral albedo measurements with satellite retrievals of narrow and broadband surface albedo from the GrIS. Our study uses transect point data collected with an Analytical Spectral Devices Inc. (ASD) spectroradiometer over southwest Greenland's ablation area during the 2013 melt season to carefully evaluate two MODIS pixels, Pixels A and B, using data from the recently developed MODIS (Version 006) MCD43A daily albedo retrievals. The high density of the ground measurements allows for the first-ever spatial characterization of the lower GrIS ablation area's heterogeneous surface within each MODIS pixel. Furthermore, we investigate within-MODIS pixel spatial variability by using a high-resolution WorldView-2 (WV-2) image. Initially, a direct point-to-pixel comparison between ground ASD and MODIS albedo retrievals was conducted. Secondly, WV-2 data was used as an intermediate between the ground and MODIS satellite retrievals to conduct a spatial representativeness analysis, aggregated into three spatial domains (200 m, 320 m, and 480 m). Our direct point-to-pixel comparison reveal that MODIS Pixels A and B are 7% larger and 3% lower, respectively, than in situ ASD albedo observations. Large MODIS sub-pixel spatial heterogeneity in albedo is observed across all MODIS wavebands. MODIS Pixel A, closest to the ice sheet margin, has the greatest spatial variability, and poorest fit between in situ and satellite retrievals, at all spatial scales. In contrast, MODIS Pixel B is relatively homogeneous at all spatial scales. The results of this study demonstrate the need for future studies to utilize a combination of surface measurements as well as fine-scale satellite and airborne remote sensing data. To overcome the issues of spatial scale and highly inhomogeneous landscapes, future concurrent field, airborne, and spaceborne campaigns need to be conducted. Finer spatial and spectral resolution imagery, as well as spatially-distributed field surveys, is needed to adequately characterize the ablation area, and improve our understanding of the contribution of ablation area albedos to future changes in Greenland's energy budget and ice mass. JF - International Geological Congress, Abstracts = Congres Geologique International, Resumes AU - Moustafa, S E AU - Rennermalm, A K AU - Roman, M O AU - Wang, Z AU - Schaaf, C B AU - Smith, L C AU - Koenig, L S AU - Erb, A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract 2880 PB - [International Geological Congress], [location varies] VL - 35 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1861077880?accountid=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+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.atitle=Evaluation+of+satellite+remote+sensing+albedo+retrievals+over+the+ablation+area+of+the+southwestern+Greenland+ice+sheet&rft.au=Moustafa%2C+S+E%3BRennermalm%2C+A+K%3BRoman%2C+M+O%3BWang%2C+Z%3BSchaaf%2C+C+B%3BSmith%2C+L+C%3BKoenig%2C+L+S%3BErb%2C+A%3BAnonymous&rft.aulast=Moustafa&rft.aufirst=S&rft.date=2016-01-01&rft.volume=35&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.issn=&rft_id=info:doi/ L2 - http://www.americangeosciences.org/sites/default/files/igc/2880.pdf LA - English DB - GeoRef N1 - Conference title - 35th international geological congress 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 International Geological Congress Organizational Committee N1 - Number of references - 1 N1 - Last updated - 2017-01-24 N1 - CODEN - IGABBY ER - TY - JOUR T1 - MSL chemistry and mineralogy of the Bagnold Dunes, Gale Crater AN - 1859791896; 2017-004468 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Ehlmann, B L AU - Achilles, C AU - Bridges, Nathan T AU - Conrad, P AU - Cousin, Agnes AU - Edgett, K AU - Fraeman, A AU - Johnson, J R AU - Lapotre, M AU - Litvak, M AU - Rowland, S AU - Schroder, S AU - Sutter, B AU - Stein, N AU - Thompson, L AU - Vaniman, D AU - Vasavada, A R AU - Yen, A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 744 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 KW - silicates KW - pigeonite KW - dunes KW - Bagnold Dunes KW - augite KW - olivine group KW - Mars KW - mineralogy KW - Gale Crater KW - terrestrial planets KW - nesosilicates KW - planets KW - pyroxene group KW - clinopyroxene KW - olivine KW - orthosilicates KW - Mars Science Laboratory KW - composition KW - geochemistry KW - aeolian KW - chain silicates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1859791896?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=MSL+chemistry+and+mineralogy+of+the+Bagnold+Dunes%2C+Gale+Crater&rft.au=Ehlmann%2C+B+L%3BAchilles%2C+C%3BBridges%2C+Nathan+T%3BConrad%2C+P%3BCousin%2C+Agnes%3BEdgett%2C+K%3BFraeman%2C+A%3BJohnson%2C+J+R%3BLapotre%2C+M%3BLitvak%2C+M%3BRowland%2C+S%3BSchroder%2C+S%3BSutter%2C+B%3BStein%2C+N%3BThompson%2C+L%3BVaniman%2C+D%3BVasavada%2C+A+R%3BYen%2C+A%3BAnonymous&rft.aulast=Ehlmann&rft.aufirst=B&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=744&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/744.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2017-01-01 N1 - Last updated - 2017-01-19 N1 - SubjectsTermNotLitGenreText - aeolian; augite; Bagnold Dunes; chain silicates; clinopyroxene; composition; dunes; Gale Crater; geochemistry; Mars; Mars Science Laboratory; mineralogy; nesosilicates; olivine; olivine group; orthosilicates; pigeonite; planets; pyroxene group; silicates; terrestrial planets ER - TY - JOUR T1 - What have we learned about Pluto from New Horizons Mission AN - 1855322245; 2017-002120 AB - The New Horizons mission to the Pluto system flew a high-resolution panchromatic imager (LORRI), a wide-field panchromatic and color imager (MVIC), infrared (LEISA) and ultraviolet (Alice) spectrometers, a radio experiment (REX), and two plasma instruments (PEPSSI and SWAP), which have revolutionized our understanding of Pluto. We now know Pluto to be less dense than other comparably sized KBOs, based on six months of astrometry (for the mass), and imaging and occultations (for the radius). LORRI, MVIC, and LEISA show a heterogeneous surface at all longitudes, with darker, CH4-poor areas near the equator. At the longitudes of the encounter hemisphere, Pluto's surface shows an astonishing diversity of landforms, including rough northern uplands, scarps and crevasses, smooth N2 plains, craters both bare of volatiles and infilled, and multiple forms of mountains. The combined power of this suite of instruments allows us to investigate the geology not only by high resolution imaging, but also with topography, scattering properties at visible and radio wavelengths, how composition maps to landforms, the interaction of the surface with the lowest levels in the Pluto's N2 atmosphere, the likely role of the atmosphere in photochemical processing, and the implications for the loss of Pluto's surface volatiles over billions of years. This work was supported by NASA's New Horizons project. JF - Abstracts with Programs - Geological Society of America AU - Young, Leslie A AU - Moore, Jeffrey M AU - Spencer, John R AU - McKinnon, William B AU - Grundy, William M AU - Gladstone, G Randall AU - Stern, S Alan AU - Weaver, Harold A AU - Olkin, Cathy AU - Ennico, Kimberly AU - Linscott, Ivan AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 48 EP - 1 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1855322245?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=What+have+we+learned+about+Pluto+from+New+Horizons+Mission&rft.au=Young%2C+Leslie+A%3BMoore%2C+Jeffrey+M%3BSpencer%2C+John+R%3BMcKinnon%2C+William+B%3BGrundy%2C+William+M%3BGladstone%2C+G+Randall%3BStern%2C+S+Alan%3BWeaver%2C+Harold+A%3BOlkin%2C+Cathy%3BEnnico%2C+Kimberly%3BLinscott%2C+Ivan%3BAnonymous&rft.aulast=Young&rft.aufirst=Leslie&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-01-05 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Spectral analysis of Pluto's water-ice rich spots at near infrared wavelengths AN - 1855322167; 2017-002121 AB - On July 14, 2015, New Horizons used its near-infrared spectral imager, LEISA (Linear Etalon Imaging Spectral Array, Reuter et al., 2008, Space Sci. Rev., 140, 129), to obtain two scans across the encounter hemisphere of Pluto at 6 to 7 km/pixel resolution. These observations mapped the distribution of N (sub 2) , CH (sub 4) , CO, and H (sub 2) O-ice on Pluto's surface (Grundy et al., 2016, Sci, 351, 9189; Protopapa et al., 2016, Icarus, in review). We have analyzed the H (sub 2) O-ice-rich sites across the encounter hemisphere using Hapke theory. We find that H (sub 2) O-ice does not appear in large quantities (>60%) above about 30 degrees N. In several locations, such as Viking Terra (all site names used are informal), H (sub 2) O-ice appears to be an exposed bedrock layer. Along Virgil Fossa, H (sub 2) O-ice appears to be exposed on the north facing scarp, coincident with the greatest elevation difference (1 to 1.5 km) between the north and south sides. H (sub 2) O-ice appears for approximately 40% of the full length of Virgil Fossa. This is in contrast to other regions of Virgil Fossa which appear to be H (sub 2) O and CH (sub 4) -ice poor (<10-15% for each). The terrain to the north ( approximately 50-75 km) and the south (<25 km) of Virgil Fossa nearest the H (sub 2) O-ice has similar spectral properties (grain size and abundance) to the scarp, suggesting a relationship. Mass wasting may explain the exposure of H (sub 2) O-ice along the scarp, but not in the surrounding area, especially on the higher, southern terrain.Another site of interest is the region around Pulfrich Crater. The spectrum shows strong crystalline H (sub 2) O-ice bands which is not centered on the crater. In addition, this site appears whitish in MVIC enhanced color images, while all other sites appear a distinct red/brown color. In the center of the H (sub 2) O-ice-rich spot are a series of 3 or 4 east-west trending pits. Other similarly oriented pit chains in this region, some as close as 75 km away, lack the H (sub 2) O-ice signature and appear to be rich in CH (sub 4) -ice. This work was supported by NASA's New Horizons project. JF - Abstracts with Programs - Geological Society of America AU - Cook, J C AU - Singer, K N AU - Cruikshank, D P AU - Dalle Ore, C M AU - Ennico, K AU - Grundy, W M AU - Olkin, C B AU - Protopapa, S AU - Stern, S Alan AU - Weaver, H A AU - Young, L A AU - Schmitt, B AU - Philippe, S AU - Stansberry, J A AU - Binzel, R P AU - Earle, A M AU - Howett, C J A AU - Parker, A H AU - Verbiscer, A J AU - Reuter, D C AU - Lunsford, A W AU - Jennings, D E AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 48 EP - 2 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1855322167?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Spectral+analysis+of+Pluto%27s+water-ice+rich+spots+at+near+infrared+wavelengths&rft.au=Cook%2C+J+C%3BSinger%2C+K+N%3BCruikshank%2C+D+P%3BDalle+Ore%2C+C+M%3BEnnico%2C+K%3BGrundy%2C+W+M%3BOlkin%2C+C+B%3BProtopapa%2C+S%3BStern%2C+S+Alan%3BWeaver%2C+H+A%3BYoung%2C+L+A%3BSchmitt%2C+B%3BPhilippe%2C+S%3BStansberry%2C+J+A%3BBinzel%2C+R+P%3BEarle%2C+A+M%3BHowett%2C+C+J+A%3BParker%2C+A+H%3BVerbiscer%2C+A+J%3BReuter%2C+D+C%3BLunsford%2C+A+W%3BJennings%2C+D+E%3BAnonymous&rft.aulast=Cook&rft.aufirst=J&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-01-05 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - What have we learned about Charon from New Horizons? AN - 1855322138; 2017-002122 AB - NASA's New Horizons probe explored the Pluto system in 2015. Its instrument suite recorded a trove of data for Pluto's large satellite Charon, most of which has now been transmitted back to Earth. The New Horizons observations revealed Charon to be a complex world in its own right. This talk will give an overview of what has been learned. There is a striking dichotomy between Charon's smoother southern plains and more rugged northern hemisphere, with the boundary featuring a belt of tectonically broken terrain. These two major provinces are spectroscopically very similar in the near infrared, with H (sub 2) O ice absorptions dominating the reflectance spectra in both areas. In the south, small wrinkles and pits hint at a cryovolcanic resurfacing episode. In the north, deep, but highly eroded chasms separate highland blocks, suggesting a global expansion early in Charon's history. Impact craters are abundant across Charon's encounter hemisphere, but are not saturated, and craters smaller than approximately 10 km are relatively scarce. Craters exhibit a variety of albedo patterns in their ejecta with some having bright distil rays combined with darker inner ejecta. At least one crater shows an infrared absorption feature attributed to NH (sub 3) ice, while other similar-looking craters do not. Charon's northern polar region is distinctly dark and red compared with lower latitudes. The southern pole is similarly dark. The dark poles are interpreted as resulting from seasonal cold-trapping of escaping gas from Pluto's atmosphere, feeding photolytic production of heavier and less volatile molecules that go on to produce tholin-like macromolecular organics. Charon's complexities suggest that comparably-sized objects elsewhere in the Kuiper belt are equally fascinating and worthy of exploration. This work was supported by NASA's New Horizons project. JF - Abstracts with Programs - Geological Society of America AU - Grundy, W M AU - Berry, K L AU - Beyer, R A AU - Binzel, R P AU - Bray, V J AU - Buie, M W AU - Buratti, B J AU - Cheng, A C AU - Cook, J C AU - Cruikshank, D P AU - Dalle Ore, C M AU - Earle, A M AU - Ennico, K AU - Jennings, D E AU - Howett, C J A AU - Kaiser, R I AU - Lauer, T R AU - Linscott, I R AU - Lisse, C M AU - Lunsford, A W AU - McKinnon, W B AU - Moore, J M AU - Nimmo, F AU - Olkin, C B AU - Parker, A H AU - Parker, J W AU - Philippe, S AU - Protopapa, S AU - Quirico, E AU - Reitsema, H J AU - Reuter, D C AU - Robbins, S J AU - Schenk, P M AU - Schmitt, B AU - Scipioni, F AU - Showalter, M R AU - Singer, K N AU - Spencer, J R AU - Stansberry, J A AU - Stern, S A AU - Tsang, C C C AU - Tyler, G L AU - Umurhan, O M AU - Verbiscer, A J AU - Weaver, H A AU - White, O L AU - Young, L A AU - Zangari, A M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 48 EP - 3 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1855322138?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=What+have+we+learned+about+Charon+from+New+Horizons%3F&rft.au=Grundy%2C+W+M%3BBerry%2C+K+L%3BBeyer%2C+R+A%3BBinzel%2C+R+P%3BBray%2C+V+J%3BBuie%2C+M+W%3BBuratti%2C+B+J%3BCheng%2C+A+C%3BCook%2C+J+C%3BCruikshank%2C+D+P%3BDalle+Ore%2C+C+M%3BEarle%2C+A+M%3BEnnico%2C+K%3BJennings%2C+D+E%3BHowett%2C+C+J+A%3BKaiser%2C+R+I%3BLauer%2C+T+R%3BLinscott%2C+I+R%3BLisse%2C+C+M%3BLunsford%2C+A+W%3BMcKinnon%2C+W+B%3BMoore%2C+J+M%3BNimmo%2C+F%3BOlkin%2C+C+B%3BParker%2C+A+H%3BParker%2C+J+W%3BPhilippe%2C+S%3BProtopapa%2C+S%3BQuirico%2C+E%3BReitsema%2C+H+J%3BReuter%2C+D+C%3BRobbins%2C+S+J%3BSchenk%2C+P+M%3BSchmitt%2C+B%3BScipioni%2C+F%3BShowalter%2C+M+R%3BSinger%2C+K+N%3BSpencer%2C+J+R%3BStansberry%2C+J+A%3BStern%2C+S+A%3BTsang%2C+C+C+C%3BTyler%2C+G+L%3BUmurhan%2C+O+M%3BVerbiscer%2C+A+J%3BWeaver%2C+H+A%3BWhite%2C+O+L%3BYoung%2C+L+A%3BZangari%2C+A+M%3BAnonymous&rft.aulast=Grundy&rft.aufirst=W&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-01-05 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - An impact basin origin for Sputnik "Planitia" and surrounding terrains, Pluto AN - 1855320877; 2017-002125 AB - The vast, nitrogen-dominated ice sheet informally known as Sputnik Planum lies within a great, oval-shaped ( approximately 1300 kmX900 km) structural depression. Better categorized as a planitia, and the scale and ellipticity of such structures on other bodies are almost always due to basin-forming impacts. Analogues include Hellas on Mars and South Pole-Aitken on the Moon. But what specific geologic features of Sputnik Planitia and its surroundings corroborate this interpretation? New Horizons imagery does not reveal an obvious ejecta blanket, secondary crater chains, or Imbrian sculpture. But Sputnik "basin" is an ancient feature. It lies at the stratigraphic base on Pluto, all old cratered surfaces on Pluto post-date it, and its surroundings been subject to extensive geological (predominantly glacial) modification. Hellas is thus a much better analogue than Orientale, Imbrium, or even SPA on the Moon. As an impact, Sputnik basin has less than a 1% chance of forming in the Kuiper belt over the last approximately 4 Gyr (Greenstreet et al., 2015), and most likely formed in the ancestral Kuiper Belt (aKB), when Pluto was closer to the Sun. Stereo-derived topography does indicate >1 km excess elevation of the Sputnik basin rim compared with Pluto overall, consistent with an ejecta deposit (and if isostatically compensated by an ocean, the ejecta thickness could be considerable). The Sputnik basin rim is a well-defined scarp to the northeast (informally, Cousteau Rupes) and to the west and southwest are annular arrangements of mountain blocks, all consistent with an impact origin. Extrapolation of crater depth-diameter measurements indicates that the rim-to-floor depth of the structural basin is no greater than 9 km (Schenk et al., LPSC 2016), consistent with estimates of the thickness of the convecting nitrogen ice plain within (McKinnon et al., 2016). The overall structure is consistent with impact of an aKB body >150 km across, moving from approximately N15W to S15E at a moderately oblique angle. JF - Abstracts with Programs - Geological Society of America AU - McKinnon, William B AU - Schenk, Paul M AU - Moore, Jeffrey M AU - Howard, Alan D AU - Nimmo, Francis AU - Singer, Kelsi N AU - Bray, Veronica J AU - Young, Leslie A AU - Olkin, Cathy AU - Ennico, Kimberly AU - Weaver, Harold A AU - Stern, S Alan AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 48 EP - 6 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1855320877?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=An+impact+basin+origin+for+Sputnik+%22Planitia%22+and+surrounding+terrains%2C+Pluto&rft.au=McKinnon%2C+William+B%3BSchenk%2C+Paul+M%3BMoore%2C+Jeffrey+M%3BHoward%2C+Alan+D%3BNimmo%2C+Francis%3BSinger%2C+Kelsi+N%3BBray%2C+Veronica+J%3BYoung%2C+Leslie+A%3BOlkin%2C+Cathy%3BEnnico%2C+Kimberly%3BWeaver%2C+Harold+A%3BStern%2C+S+Alan%3BAnonymous&rft.aulast=McKinnon&rft.aufirst=William&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-01-05 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Pluto system cratering history and surface ages AN - 1855320821; 2017-002124 AB - Impact craters provide valuable clues for understanding the surface ages and geologic evolution of the Pluto system bodies. We will present crater mapping results from the best images from both the LORRI (LOng Range Reconnaissance Imager; Cheng et al., 2008, SSR, 140, 189-215) framing camera, and the Ralph/MVIC (Multispectral Visual Imaging Camera; Reuter et al., 2008, SSR, 140, 129-154; Howett et al., 2016, Icarus, under review) scanning imager. Pixels scales range from 77-850 m/px for Pluto and 154-865 m/px for Charon. Crater size frequency distributions have been derived for broad physiographic regions. No obvious secondary craters are observed on the encounter hemispheres of Pluto or Charon. Pluto's terrains display a diversity of crater retention ages and terrain types, indicating ongoing geologic activity and a variety of resurfacing styles including both exogenic and endogenic processes (Moore et al., 2016, Science, 351, 1284-1293). Charon's informally named Vulcan Planum did experience early resurfacing, but crater densities suggest this is a relatively ancient surface, as are the northern terrains on Charon. The crater densities on Nix and Hydra indicate an old age similar to Charon's (Weaver et al., 2016, Science, 351). The crater size-frequency distributions for both Pluto and Charon break to shallower slope for craters smaller than 10 km in diameter. We observe this paucity of small craters (relative to a constant slope extrapolated from larger craters) on all terrains, despite adequate resolution to observe them. This lack of small craters cannot be explained by geological resurfacing alone. The lack of small craters on Pluto and Charon is more consistent with solar system formation models that result in fewer small impactors (e.g., Chiang and Youdin, 2010, AREPS, 38, 493-522; Nesvorny et al., 2010, AJ, 140, 785-793). This work was supported by NASA's New Horizons project. JF - Abstracts with Programs - Geological Society of America AU - Singer, Kelsi N AU - McKinnon, William B AU - Greenstreet, Sarah AU - Gladman, Brett AU - Parker, Alex AU - Robbins, Stuart J AU - Schenk, Paul M AU - Spencer, John R AU - Stern, S Alan AU - Bray, Veronica J AU - Weaver, Harold A AU - Howard, Alan D AU - Young, Leslie A AU - Olkin, Cathy AU - Ennico, Kimberly AU - Moore, Jeffrey AU - Binzel, Richard AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 48 EP - 5 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1855320821?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Pluto+system+cratering+history+and+surface+ages&rft.au=Singer%2C+Kelsi+N%3BMcKinnon%2C+William+B%3BGreenstreet%2C+Sarah%3BGladman%2C+Brett%3BParker%2C+Alex%3BRobbins%2C+Stuart+J%3BSchenk%2C+Paul+M%3BSpencer%2C+John+R%3BStern%2C+S+Alan%3BBray%2C+Veronica+J%3BWeaver%2C+Harold+A%3BHoward%2C+Alan+D%3BYoung%2C+Leslie+A%3BOlkin%2C+Cathy%3BEnnico%2C+Kimberly%3BMoore%2C+Jeffrey%3BBinzel%2C+Richard%3BAnonymous&rft.aulast=Singer&rft.aufirst=Kelsi&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-01-05 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Geologic map of New Horizons' encounter hemisphere of Charon, II AN - 1855320538; 2017-002123 AB - NASA's New Horizons spacecraft revealed diverse landscapes on Pluto and Charon during its July 2015 flyby, and we have begun geomorphologic mapping to better understand the different landforms, sequence and timing, and how they may have formed. The work herein focuses on Charon, and images from the spacecraft have revealed a variety of features that include hundreds of tectonic manifestations and vast but diverse plains. For ease of communication, the New Horizons team developed informal names used herein. On Charon, these include two dark macula, 14 impact craters, six chasmata, and three large montes. In addition, the very broad area north of a large tectonic belt has been termed 'Oz Terra' and the smoother plains generally south of the belt are 'Vulcan Planum'. Initial geomorphologic mapping focused on tectonic features. The majority of tectonic features are aligned northeast-southwest; this parallels the massive tectonic belt implying these features are likely related. Based on superposed, large impact craters, we estimate the majority of the larger tectonic features formed approximately 4 Ga. However, crater density maps show a deficit of craters in some areas that are possibly due to disruption by tectonic features, indicating that some tectonic activity may be significantly younger. Vulcan Planum is a younger region than Oz Terra, indicated by the spatial density of large craters. In topography, it shows a 'moat' at its margins, possibly indicating a frozen viscous fluid flow. We are in the process of studying this region and the geomorphologic map has revealed only two primary types of landscape: smooth plains, and patterned ground which resembles an elephant skin-like texture. Near its southern margin, it also shows numerous broad warps that may represent upwelling. JF - Abstracts with Programs - Geological Society of America AU - Robbins, Stuart J AU - Spencer, John R AU - Beyer, Ross AU - Schenk, Paul M AU - Moore, Jeffrey M AU - McKinnon, William B AU - Young, Leslie A AU - Olkin, Cathy AU - Ennico, Kimberly AU - Weaver, Harold A AU - Stern, S Alan AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 48 EP - 4 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 7 SN - 0016-7592, 0016-7592 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1855320538?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Geologic+map+of+New+Horizons%27+encounter+hemisphere+of+Charon%2C+II&rft.au=Robbins%2C+Stuart+J%3BSpencer%2C+John+R%3BBeyer%2C+Ross%3BSchenk%2C+Paul+M%3BMoore%2C+Jeffrey+M%3BMcKinnon%2C+William+B%3BYoung%2C+Leslie+A%3BOlkin%2C+Cathy%3BEnnico%2C+Kimberly%3BWeaver%2C+Harold+A%3BStern%2C+S+Alan%3BAnonymous&rft.aulast=Robbins&rft.aufirst=Stuart&rft.date=2016-01-01&rft.volume=48&rft.issue=7&rft.spage=&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, 2016 annual meeting & exposition N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2017-01-01 N1 - PubXState - CO N1 - Last updated - 2017-01-05 N1 - CODEN - GAAPBC ER - TY - JOUR T1 - Ice caves as a target location for the first human mission to Mars; the case for a Hebrus Valles landing site AN - 1855319163; 2017-002811 JF - International Conference on Permafrost - Book of Abstracts AU - Schulze-Makuch, Dirk AU - Davila, Alfonso AU - Fairen, Alberto AU - Rodriguez, Alexis AU - Rask, Jon AU - Zavaleta, Jhony Y1 - 2016 PY - 2016 DA - 2016 SP - 581 EP - 582 PB - [publisher varies], [location varies] VL - 11 KW - ice caves KW - caves KW - Mars KW - landing sites KW - Hebrus Valles KW - terrestrial planets KW - planets KW - precipitation KW - glacial environment KW - brines KW - surface features KW - chemical composition KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1855319163?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Conference+on+Permafrost+-+Book+of+Abstracts&rft.atitle=Ice+caves+as+a+target+location+for+the+first+human+mission+to+Mars%3B+the+case+for+a+Hebrus+Valles+landing+site&rft.au=Schulze-Makuch%2C+Dirk%3BDavila%2C+Alfonso%3BFairen%2C+Alberto%3BRodriguez%2C+Alexis%3BRask%2C+Jon%3BZavaleta%2C+Jhony&rft.aulast=Schulze-Makuch&rft.aufirst=Dirk&rft.date=2016-01-01&rft.volume=11&rft.issue=&rft.spage=581&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Permafrost+-+Book+of+Abstracts&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eleventh international conference on Permafrost; exploring permafrost in a future Earth N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2017-01-01 N1 - Number of references - 14 N1 - Document feature - illus. N1 - Last updated - 2017-01-05 N1 - CODEN - #07985 N1 - SubjectsTermNotLitGenreText - brines; caves; chemical composition; glacial environment; Hebrus Valles; ice caves; landing sites; Mars; planets; precipitation; surface features; terrestrial planets ER - TY - JOUR T1 - Observed present-day seasonal gully activity within three Martian years in a south polar pit (Sisyphi Cavi) on Mars AN - 1855319154; 2017-002810 JF - International Conference on Permafrost - Book of Abstracts AU - Raack, Jan AU - Reiss, Dennis AU - Appere, Thomas AU - Vincendon, Mathieu AU - Ruesch, Ottaviano AU - Hiesinger, Harald Y1 - 2016 PY - 2016 DA - 2016 SP - 579 EP - 580 PB - [publisher varies], [location varies] VL - 11 KW - polar regions KW - pits KW - channels KW - Mars KW - erosion features KW - digital terrain models KW - Sisyphi Cavi KW - temperature KW - carbon dioxide KW - terrestrial planets KW - sublimation KW - planets KW - surface features KW - gullies KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1855319154?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Conference+on+Permafrost+-+Book+of+Abstracts&rft.atitle=Observed+present-day+seasonal+gully+activity+within+three+Martian+years+in+a+south+polar+pit+%28Sisyphi+Cavi%29+on+Mars&rft.au=Raack%2C+Jan%3BReiss%2C+Dennis%3BAppere%2C+Thomas%3BVincendon%2C+Mathieu%3BRuesch%2C+Ottaviano%3BHiesinger%2C+Harald&rft.aulast=Raack&rft.aufirst=Jan&rft.date=2016-01-01&rft.volume=11&rft.issue=&rft.spage=579&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Permafrost+-+Book+of+Abstracts&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eleventh international conference on Permafrost; exploring permafrost in a future Earth N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2017-01-01 N1 - Number of references - 2 N1 - Last updated - 2017-01-05 N1 - CODEN - #07985 N1 - SubjectsTermNotLitGenreText - carbon dioxide; channels; digital terrain models; erosion features; gullies; Mars; pits; planets; polar regions; Sisyphi Cavi; sublimation; surface features; temperature; terrestrial planets ER - TY - JOUR T1 - Quantifying the biogeochemical processes and environmental controls that drive Arctic-boreal ecosystem carbon fluxes AN - 1855317577; 2017-000898 JF - International Conference on Permafrost - Book of Abstracts AU - Miller, Charles AU - Biraud, Sebastien AU - Bloom, Anthony AU - Budney, John AU - Chang, Rachel AU - Chazanoff, Seth AU - Commane, Roisin AU - Daube, Bruce AU - Fang, Yuanyuan AU - Gottlieb, Elaine AU - Hardman, Sean AU - Henderson, John AU - Jeong, Su-Jong AU - Karion, Anna AU - Kimball, John S AU - Koven, Charles AU - Kurosu, Thomas AU - Lawrence, David AU - Luus, Kristina AU - McDonald, Kyle AU - McKain, Kathryn AU - Michalak, Anna AU - Miller, John AU - Miller, Scot AU - Mouteva, Gergana AU - Oechel, Walt AU - Parazoo, Nicholas Cody AU - Pittman, Jasna AU - Podest, Erika AU - Potter, Chris AU - Randerson, James AU - Sachs, Torsten AU - Schimel, Dave AU - Slater, Andrew AU - Steiner, Nick AU - Sweeney, Colm AU - Torn, Margaret AU - Veraverbeke, Sander AU - Watts, Jennifer D AU - Wiggins, Elizabeth AU - Wofsy, Steve AU - Wolter, Sonja AU - Worthy, Doug AU - Yadav, Vineet AU - Zona, Donatella Y1 - 2016 PY - 2016 DA - 2016 SP - 295 EP - 296 PB - [publisher varies], [location varies] VL - 11 KW - soils KW - terrestrial environment KW - permafrost KW - methane KW - degradation KW - biochemistry KW - Arctic region KW - aliphatic hydrocarbons KW - alkanes KW - climate change KW - geochemical cycle KW - carbon dioxide KW - boreal environment KW - organic compounds KW - carbon KW - hydrocarbons KW - climate effects KW - ecology KW - carbon cycle KW - geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1855317577?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Conference+on+Permafrost+-+Book+of+Abstracts&rft.atitle=Quantifying+the+biogeochemical+processes+and+environmental+controls+that+drive+Arctic-boreal+ecosystem+carbon+fluxes&rft.au=Miller%2C+Charles%3BBiraud%2C+Sebastien%3BBloom%2C+Anthony%3BBudney%2C+John%3BChang%2C+Rachel%3BChazanoff%2C+Seth%3BCommane%2C+Roisin%3BDaube%2C+Bruce%3BFang%2C+Yuanyuan%3BGottlieb%2C+Elaine%3BHardman%2C+Sean%3BHenderson%2C+John%3BJeong%2C+Su-Jong%3BKarion%2C+Anna%3BKimball%2C+John+S%3BKoven%2C+Charles%3BKurosu%2C+Thomas%3BLawrence%2C+David%3BLuus%2C+Kristina%3BMcDonald%2C+Kyle%3BMcKain%2C+Kathryn%3BMichalak%2C+Anna%3BMiller%2C+John%3BMiller%2C+Scot%3BMouteva%2C+Gergana%3BOechel%2C+Walt%3BParazoo%2C+Nicholas+Cody%3BPittman%2C+Jasna%3BPodest%2C+Erika%3BPotter%2C+Chris%3BRanderson%2C+James%3BSachs%2C+Torsten%3BSchimel%2C+Dave%3BSlater%2C+Andrew%3BSteiner%2C+Nick%3BSweeney%2C+Colm%3BTorn%2C+Margaret%3BVeraverbeke%2C+Sander%3BWatts%2C+Jennifer+D%3BWiggins%2C+Elizabeth%3BWofsy%2C+Steve%3BWolter%2C+Sonja%3BWorthy%2C+Doug%3BYadav%2C+Vineet%3BZona%2C+Donatella&rft.aulast=Miller&rft.aufirst=Charles&rft.date=2016-01-01&rft.volume=11&rft.issue=&rft.spage=295&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Permafrost+-+Book+of+Abstracts&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eleventh international conference on Permafrost; exploring permafrost in a future Earth N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2017-01-01 N1 - Document feature - illus. N1 - Last updated - 2017-01-05 N1 - CODEN - #07985 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; Arctic region; biochemistry; boreal environment; carbon; carbon cycle; carbon dioxide; climate change; climate effects; degradation; ecology; geochemical cycle; geochemistry; hydrocarbons; methane; organic compounds; permafrost; soils; terrestrial environment ER - TY - JOUR T1 - Extraterrestrial (per)chlorate AN - 1849306711; 2016-110617 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Davila, Alfonso F AU - Jackson, W Andrew AU - Sears, Derek W G AU - Coates, John D AU - Mckay, Christopher P AU - Brundrett, Maeghan AU - Estrada, Nubia AU - Boehlke, J K AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 615 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 KW - ordinary chondrites KW - stony meteorites KW - Moon KW - Fayetteville Meteorite KW - Mars KW - H chondrites KW - carbonaceous chondrites KW - perchlorate KW - Murchison Meteorite KW - terrestrial planets KW - planets KW - meteorites KW - lunar samples KW - CM chondrites KW - chondrites KW - regolith KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849306711?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Extraterrestrial+%28per%29chlorate&rft.au=Davila%2C+Alfonso+F%3BJackson%2C+W+Andrew%3BSears%2C+Derek+W+G%3BCoates%2C+John+D%3BMckay%2C+Christopher+P%3BBrundrett%2C+Maeghan%3BEstrada%2C+Nubia%3BBoehlke%2C+J+K%3BAnonymous&rft.aulast=Davila&rft.aufirst=Alfonso&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=615&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/615.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 1 N1 - Last updated - 2016-12-16 N1 - SubjectsTermNotLitGenreText - carbonaceous chondrites; chondrites; CM chondrites; Fayetteville Meteorite; H chondrites; lunar samples; Mars; meteorites; Moon; Murchison Meteorite; ordinary chondrites; perchlorate; planets; regolith; stony meteorites; terrestrial planets ER - TY - JOUR T1 - Supporting underserved patients with their medicines: a study protocol for a patient/professional coproduced education intervention for community pharmacy staff to improve the provision and delivery of Medicine Use Reviews (MURs) AN - 1847621983 AB - Introduction Community pharmacy increasingly features in global strategies to modernise the delivery of primary healthcare. Medicine Use Reviews (MURs) form part of the English Government's medicines management strategy to improve adherence and reduce medicine waste. MURs provide space for patient-pharmacist dialogue to discuss the well-known problems patients experience with medicine taking. However, 'underserved' communities (eg, black and minority ethnic communities, people with mental illness), who may benefit the most, may not receive this support. This study aims to develop, implement and evaluate an e-learning education intervention which is coproduced between patients from underserved communities and pharmacy teams to improve MUR provision. Methods and analysis This mixed-methods evaluative study will involve a 2-stage design. Stage 1 involves coproduction of an e-learning resource through mixed patient-professional development (n=2) and review (n=2) workshops, alongside informative semistructured interviews with patients (n=10) and pharmacy staff (n=10). Stage 2 involves the implementation and evaluation of the intervention with community pharmacy staff within all community pharmacies within the Nottinghamshire geographical area (n=237). Online questionnaires will be completed at baseline and postintervention (3 months) to assess changes in engagement with underserved communities and changes in self-reported attitudes and behaviour. To triangulate findings, 10 pharmacies will record at baseline and postintervention, details of actual numbers of MURs performed and the proportion that are from underserved communities. Descriptive and inferential statistics will be used to analyse the data. The evaluation will also include a thematic analysis of one-to-one interviews with pharmacy teams to explore the impact on clinical practice (n=20). Interviews with patients belonging to underserved communities, and who received an MUR, will also be conducted (n=20). Ethics and dissemination The study has received ethical approval from the NHS Research Ethics Committee (East Midlands-Derby) and governance clearance through the NHS Health Research Authority. Following the evaluation, the educational intervention will be freely accessible online. JF - BMJ Open AU - Latif, Asam AU - Pollock, Kristian AU - Anderson, Claire AU - Waring, Justin AU - Solomon, Josie AU - Chen, Li-Chia AU - Anderson, Emma AU - Gulzar, Sulma AU - Abbasi, Nasa AU - Wharrad, Heather Y1 - 2016 PY - 2016 DA - 2016 CY - London PB - BMJ Publishing Group LTD VL - 6 IS - 12 KW - Medical Sciences KW - EDUCATION & TRAINING (see Medical Education & Training) KW - PRIMARY CARE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1847621983?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apsychology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=BMJ+Open&rft.atitle=Supporting+underserved+patients+with+their+medicines%3A+a+study+protocol+for+a+patient%2Fprofessional+coproduced+education+intervention+for+community+pharmacy+staff+to+improve+the+provision+and+delivery+of+Medicine+Use+Reviews+%28MURs%29&rft.au=Latif%2C+Asam%3BPollock%2C+Kristian%3BAnderson%2C+Claire%3BWaring%2C+Justin%3BSolomon%2C+Josie%3BChen%2C+Li-Chia%3BAnderson%2C+Emma%3BGulzar%2C+Sulma%3BAbbasi%2C+Nasa%3BWharrad%2C+Heather&rft.aulast=Latif&rft.aufirst=Asam&rft.date=2016-01-01&rft.volume=6&rft.issue=12&rft.spage=&rft.isbn=&rft.btitle=&rft.title=BMJ+Open&rft.issn=&rft_id=info:doi/10.1136%2Fbmjopen-2016-013500 LA - English DB - ProQuest Central N1 - Copyright - Copyright: 2016 Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/ N1 - Last updated - 2017-01-18 DO - http://dx.doi.org/10.1136/bmjopen-2016-013500 ER - TY - JOUR T1 - Assessing the socioeconomic impact and value of open geospatial information AN - 1840621718; 2016-098690 AB - The production and accessibility of geospatial information including Earth observation is changing greatly both technically and in terms of human participation. Advances in technology have changed the way that geospatial data are produced and accessed, resulting in more efficient processes and greater accessibility than ever before. Improved technology has also created opportunities for increased participation in the gathering and interpretation of data through crowdsourcing and citizen science efforts. Increased accessibility has resulted in greater participation in the use of data as prices for Government-produced data have fallen and barriers to access have been reduced. The increase in participation in the production and in the use of data, defined as data democracy for this workshop, are having great impacts on economics and more generally on society. There is also a strong drive by governments around the world, as shown by the G8 Declaration in June 2013, to make public sector information and scientific data more widely accessible. These are respectively termed "open data" and "open research data." This report summarizes discussion at the Workshop on Assessing the Impact and Value of Open Geospatial Information held at George Washington University in Washington, D.C. in October 2014. Workshop participants examined the consequences of expanding data democracy with a focus on its socioeconomic impacts. Evaluations were presented of state-of-the-art methods to assess these socioeconomic impacts, which included position papers and remarks by discussants. The workshop included discussions about the following topics: (1) increased and expanded information sources; (2) societal impacts, including approaches to economics assessments; (3) constraints to open access, including the demands for return on investment, specifications of intellectual property rights, and privacy issues; and (4) learning from the experiences of other data-rich domains, such as environmental management, internet businesses, health, and transportation. The workshop was a working meeting with strong participant engagement, leading to recommendations for action. The meeting included five topic-driven sessions and keynote presentations. Precirculated position papers for each panel session facilitated preparation and remarks by discussants. After the position papers are updated following the discussants' remarks, it is planned to submit them for publication. The workshop included 68 participants coming from international organizations, the U.S. public and private sectors, nongovernmental organizations, and academia. Participants included policy makers and analysts, financial analysts, economists, information scientists, geospatial practitioners, and other discipline experts. JF - Open-File Report - U. S. Geological Survey AU - Pearlman, Francoise AU - Pearlman, Jay AU - Bernknopf, Richard AU - Coote, Andrew AU - Craglia, Massimo AU - Friedl, Lawrence AU - Gallo, Jason AU - Hertzfeld, Henry AU - Jolly, Claire AU - Macauley, Molly AU - Shapiro, Carl AU - Smart, Alan Y1 - 2016 PY - 2016 DA - 2016 SP - 36 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - spatial data KW - government agencies KW - economics KW - decision-making KW - applications KW - USGS KW - information management KW - data management KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840621718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Open-File+Report+-+U.+S.+Geological+Survey&rft.atitle=Assessing+the+socioeconomic+impact+and+value+of+open+geospatial+information&rft.au=Pearlman%2C+Francoise%3BPearlman%2C+Jay%3BBernknopf%2C+Richard%3BCoote%2C+Andrew%3BCraglia%2C+Massimo%3BFriedl%2C+Lawrence%3BGallo%2C+Jason%3BHertzfeld%2C+Henry%3BJolly%2C+Claire%3BMacauley%2C+Molly%3BShapiro%2C+Carl%3BSmart%2C+Alan&rft.aulast=Pearlman&rft.aufirst=Francoise&rft.date=2016-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/10.3133%2Fofr20161036 L2 - https://pubs.er.usgs.gov/browse/usgs-publications/OFR LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 28 N1 - PubXState - VA N1 - Document feature - illus. N1 - SuppNotes - Includes appendices; summary of a workshop held in Washington, DC, Oct. 28-29, 2014; Prepared in cooperation with the Socioeconomic Benefits Community N1 - Last updated - 2016-11-17 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - applications; data management; decision-making; economics; government agencies; information management; spatial data; USGS DO - http://dx.doi.org/10.3133/ofr20161036 ER - TY - JOUR T1 - Mineralogy of eolian sands at Gale Crater, Mars AN - 1832729063; 2016-090066 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Achilles, C N AU - Downs, R T AU - Vaniman, D T AU - Yen, A S AU - Blake, D F AU - Morris, R V AU - Ming, D W AU - Rampe, E B AU - Morrison, S M AU - Bristow, T F AU - Chipera, S J AU - Ehlmann, B L AU - Lapotre, M G A AU - Edgett, K S AU - Gellert, R AU - Treiman, A H AU - Fendrich, K V AU - Sarrazin, P C AU - Craig, P I AU - Crisp, J A AU - Grotzinger, J P AU - Des Marais, D J AU - Farmer, J D AU - Morookian, J M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 11 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 KW - sand KW - X-ray diffraction data KW - clastic sediments KW - amorphous materials KW - Mars KW - weathering KW - Rocknest KW - Gale Crater KW - terrestrial planets KW - provenance KW - planets KW - mineral composition KW - sampling KW - Curiosity Rover KW - sediments KW - Mars Science Laboratory KW - Godabeb KW - Mount Sharp KW - Bagnold dune field KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832729063?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Mineralogy+of+eolian+sands+at+Gale+Crater%2C+Mars&rft.au=Achilles%2C+C+N%3BDowns%2C+R+T%3BVaniman%2C+D+T%3BYen%2C+A+S%3BBlake%2C+D+F%3BMorris%2C+R+V%3BMing%2C+D+W%3BRampe%2C+E+B%3BMorrison%2C+S+M%3BBristow%2C+T+F%3BChipera%2C+S+J%3BEhlmann%2C+B+L%3BLapotre%2C+M+G+A%3BEdgett%2C+K+S%3BGellert%2C+R%3BTreiman%2C+A+H%3BFendrich%2C+K+V%3BSarrazin%2C+P+C%3BCraig%2C+P+I%3BCrisp%2C+J+A%3BGrotzinger%2C+J+P%3BDes+Marais%2C+D+J%3BFarmer%2C+J+D%3BMorookian%2C+J+M%3BAnonymous&rft.aulast=Achilles&rft.aufirst=C&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/11.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 2 N1 - Last updated - 2016-10-27 N1 - SubjectsTermNotLitGenreText - amorphous materials; Bagnold dune field; clastic sediments; Curiosity Rover; Gale Crater; Godabeb; Mars; Mars Science Laboratory; mineral composition; Mount Sharp; planets; provenance; Rocknest; sampling; sand; sediments; terrestrial planets; weathering; X-ray diffraction data ER - TY - JOUR T1 - Recent and Holocene climate change controls on vegetation and carbon accumulation in Alaskan coastal muskegs AN - 1832723442; 2016-091702 AB - Pollen, spore, macrofossil and carbon data from a peatland near Cordova, Alaska, reveal insights into the climate-vegetation-carbon interactions from the initiation of the Holocene, c. the last 11.5 ka, to the present (1 ka = 1000 calibrated years before present where 0 = 1950 CE). The Holocene period is characterized by early deposition of gyttja in a pond environment with aquatics such as Nuphar polysepalum and Potamogeton, and a significant regional presence of Alnus crispa subsp. sinuata. Carbon accumulation (50 g/m (super 2) /a) was high for a short interval in the early Holocene when Sphagnum peat accumulated, but was followed by a major decline to 13 g/m (super 2) /a from 7 to 3.7 ka when Cyperaceae and ericads such as Rhododendron (formerly Ledum) groenlandicum expanded. This shift to sedge growth is representative of many peatlands throughout the south-central region of Alaska, and indicates a drier, more evaporative environment with a large decline in carbon storage. The subsequent return to Sphagnum peat after 4 ka in the Neoglacial represents a widespread shift to moister, cooler conditions, which favored a resurgence of ericads, such as Andromeda polifolia, and increased carbon accumulation rate. The sustained Alnus expansion visible in the top 10 cm of the peat profile is correlative with glacial retreat and warming of the region in the last century, and suggests this colonization will continue as temperature increases and ice melts. Abstract Copyright (2016) Elsevier, B.V. JF - Quaternary Science Reviews AU - Peteet, Dorothy M AU - Nichols, Jonathan E AU - Moy, Christopher M AU - McGeachy, Alicia AU - Perez, Max Y1 - 2016/01/01/ PY - 2016 DA - 2016 Jan 01 SP - 168 EP - 178 PB - Elsevier VL - 131 IS - Part A SN - 0277-3791, 0277-3791 KW - United States KW - lithostratigraphy KW - isotopes KW - vegetation KW - Holocene KW - cores KW - paleoecology KW - cluster analysis KW - Cenozoic KW - radioactive isotopes KW - pollen KW - dates KW - sedimentation rates KW - Cordova Alaska KW - carbon KW - sediments KW - absolute age KW - miospores KW - Quaternary KW - principal components analysis KW - chronostratigraphy KW - biostratigraphy KW - statistical analysis KW - sedimentation KW - spores KW - peat KW - palynomorphs KW - southern Alaska KW - Alaska KW - C-14 KW - microfossils KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832723442?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Recent+and+Holocene+climate+change+controls+on+vegetation+and+carbon+accumulation+in+Alaskan+coastal+muskegs&rft.au=Peteet%2C+Dorothy+M%3BNichols%2C+Jonathan+E%3BMoy%2C+Christopher+M%3BMcGeachy%2C+Alicia%3BPerez%2C+Max&rft.aulast=Peteet&rft.aufirst=Dorothy&rft.date=2016-01-01&rft.volume=131&rft.issue=Part+A&rft.spage=168&rft.isbn=&rft.btitle=&rft.title=Quaternary+Science+Reviews&rft.issn=02773791&rft_id=info:doi/10.1016%2Fj.quascirev.2015.10.032 L2 - http://www.sciencedirect.com/science/journal/02773791 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 53 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2016-10-27 N1 - SubjectsTermNotLitGenreText - absolute age; Alaska; biostratigraphy; C-14; carbon; Cenozoic; chronostratigraphy; cluster analysis; Cordova Alaska; cores; dates; Holocene; isotopes; lithostratigraphy; microfossils; miospores; paleoecology; palynomorphs; peat; pollen; principal components analysis; Quaternary; radioactive isotopes; sedimentation; sedimentation rates; sediments; southern Alaska; spores; statistical analysis; United States; vegetation DO - http://dx.doi.org/10.1016/j.quascirev.2015.10.032 ER - TY - JOUR T1 - Melting of the primive Mercurian mantle, insights into the origin of its surface composition AN - 1832686387; 782748-82 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Boujibar, A AU - Righter, K AU - Rapp, J F AU - Ross, D K AU - Pando, K M AU - Danielson, L R AU - Fontaine, E AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 282 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832686387?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Melting+of+the+primive+Mercurian+mantle%2C+insights+into+the+origin+of+its+surface+composition&rft.au=Boujibar%2C+A%3BRighter%2C+K%3BRapp%2C+J+F%3BRoss%2C+D+K%3BPando%2C+K+M%3BDanielson%2C+L+R%3BFontaine%2C+E%3BAnonymous&rft.aulast=Boujibar&rft.aufirst=A&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=282&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/282.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Developing a strategy for geochronologic sampling of the south pole-aitken basin based on experiences with low-temperature thermochronology of terrestrial craters AN - 1832672680; 776759-40 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Young, K E AU - Mercer, C M AU - Hodges, K V AU - van Soest, Matthijs C AU - Osinski, G AU - Petro, N E AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1754 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832672680?accountid=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=Developing+a+strategy+for+geochronologic+sampling+of+the+south+pole-aitken+basin+based+on+experiences+with+low-temperature+thermochronology+of+terrestrial+craters&rft.au=Young%2C+K+E%3BMercer%2C+C+M%3BHodges%2C+K+V%3Bvan+Soest%2C+Matthijs+C%3BOsinski%2C+G%3BPetro%2C+N+E%3BAnonymous&rft.aulast=Young&rft.aufirst=K&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Impact cratering on the small planets ceres and vesta; S-C transitions central pits and the origin of bright spots AN - 1832672559; 776760-60 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Schenk, P AU - Marchi, S AU - O'Brien, D P AU - Bland, M AU - Platz, T AU - Hoogenboom, T AU - Kramer, G AU - Schroeder, S AU - de Sanctis, M AU - Buczkowski, D AU - Sykes, M AU - McFadden, L A AU - Ruesch, O AU - Le Corre, L AU - Schmidt, B AU - Hughson, K AU - Russell, C T AU - Scully, J AU - Raymond, C AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2697 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832672559?accountid=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=Impact+cratering+on+the+small+planets+ceres+and+vesta%3B+S-C+transitions+central+pits+and+the+origin+of+bright+spots&rft.au=Schenk%2C+P%3BMarchi%2C+S%3BO%27Brien%2C+D+P%3BBland%2C+M%3BPlatz%2C+T%3BHoogenboom%2C+T%3BKramer%2C+G%3BSchroeder%2C+S%3Bde+Sanctis%2C+M%3BBuczkowski%2C+D%3BSykes%2C+M%3BMcFadden%2C+L+A%3BRuesch%2C+O%3BLe+Corre%2C+L%3BSchmidt%2C+B%3BHughson%2C+K%3BRussell%2C+C+T%3BScully%2C+J%3BRaymond%2C+C%3BAnonymous&rft.aulast=Schenk&rft.aufirst=P&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Linear structures on CERES; morphology, orienttion and possible formation mechanisms AN - 1832672479; 776759-92 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Buczkowski, D L AU - Schenk, P M AU - Scully, J E C AU - van der Gathen, I AU - Williams, D A AU - Mest, S C AU - Park, R AU - Preusker, F AU - Jaumann, R AU - Roatsch, T AU - Platz, T AU - Nathues, A AU - Hoffman, M AU - Schaefer, M AU - Marchi, S AU - De Sanctis, M C AU - Raymond, C A AU - Russell, C T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1262 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832672479?accountid=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=Linear+structures+on+CERES%3B+morphology%2C+orienttion+and+possible+formation+mechanisms&rft.au=Buczkowski%2C+D+L%3BSchenk%2C+P+M%3BScully%2C+J+E+C%3Bvan+der+Gathen%2C+I%3BWilliams%2C+D+A%3BMest%2C+S+C%3BPark%2C+R%3BPreusker%2C+F%3BJaumann%2C+R%3BRoatsch%2C+T%3BPlatz%2C+T%3BNathues%2C+A%3BHoffman%2C+M%3BSchaefer%2C+M%3BMarchi%2C+S%3BDe+Sanctis%2C+M+C%3BRaymond%2C+C+A%3BRussell%2C+C+T%3BAnonymous&rft.aulast=Buczkowski&rft.aufirst=D&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - D/H composition of polycyclic aromatic hydrocarbons across carbonaceous chondrites AN - 1832670158; 782755-79 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Graham, Heather V AU - Elsila, Jamie E AU - Jose C, Aponte AU - Dworkin, Jason P AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 979 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832670158?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=D%2FH+composition+of+polycyclic+aromatic+hydrocarbons+across+carbonaceous+chondrites&rft.au=Graham%2C+Heather+V%3BElsila%2C+Jamie+E%3BJose+C%2C+Aponte%3BDworkin%2C+Jason+P%3BAnonymous&rft.aulast=Graham&rft.aufirst=Heather&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=979&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/979.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - An Amoeboid Olivine Aggregate in Polymict Eucrite LEW 85300 AN - 1832670085; 782761-75 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Komatsu, M AU - Yamaguchi, A AU - Fagan, T J AU - Zolensky, M E AU - Shirai, N AU - Mikouchi, T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 1575 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832670085?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=An+Amoeboid+Olivine+Aggregate+in+Polymict+Eucrite+LEW+85300&rft.au=Komatsu%2C+M%3BYamaguchi%2C+A%3BFagan%2C+T+J%3BZolensky%2C+M+E%3BShirai%2C+N%3BMikouchi%2C+T%3BAnonymous&rft.aulast=Komatsu&rft.aufirst=M&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=1575&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/1575.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - Selective chemical degradation of microbial mat residues and implications for lipid biomarker preservation AN - 1832670023; 782762-95 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Lee, Carina AU - Love, Gordon D AU - Jahnke, Linda L AU - Des Marais, David J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 1695 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832670023?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Selective+chemical+degradation+of+microbial+mat+residues+and+implications+for+lipid+biomarker+preservation&rft.au=Lee%2C+Carina%3BLove%2C+Gordon+D%3BJahnke%2C+Linda+L%3BDes+Marais%2C+David+J%3BAnonymous&rft.aulast=Lee&rft.aufirst=Carina&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=1695&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/1695.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - Metal-silicate -sulfide partitioning of U, Th, and K: Implications for the budget of volatile elements in Mercury AN - 1832669673; 782756-28 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Habermann, M AU - Boujibar, A AU - Righter, K AU - Danielson, L AU - Rapp, J AU - Righter, M AU - Pando, K AU - Ross, D K AU - Andreasen, R AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 1028 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832669673?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Metal-silicate+-sulfide+partitioning+of+U%2C+Th%2C+and+K%3A+Implications+for+the+budget+of+volatile+elements+in+Mercury&rft.au=Habermann%2C+M%3BBoujibar%2C+A%3BRighter%2C+K%3BDanielson%2C+L%3BRapp%2C+J%3BRighter%2C+M%3BPando%2C+K%3BRoss%2C+D+K%3BAndreasen%2C+R%3BAnonymous&rft.aulast=Habermann&rft.aufirst=M&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=1028&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/1028.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Evidene of regional variations in heat flow on Saturn's Moon tethys AN - 1832669535; 777375-103 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bellagamba, A W AU - Grimm, A M AU - Dombard, A J AU - White, O L AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2322 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832669535?accountid=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=Evidene+of+regional+variations+in+heat+flow+on+Saturn%27s+Moon+tethys&rft.au=Bellagamba%2C+A+W%3BGrimm%2C+A+M%3BDombard%2C+A+J%3BWhite%2C+O+L%3BAnonymous&rft.aulast=Bellagamba&rft.aufirst=A&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Olivine and plagioclase oxygen isotope signature of non-lunar material in Apollo regolith breccias with closure ages approximately 1;79 to 1;70 Ga AN - 1832669513; 777376-103 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Fagan, A L AU - Joy, K H AU - Nagashima, K AU - Huss, G R AU - Kring, D A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2789 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832669513?accountid=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=Olivine+and+plagioclase+oxygen+isotope+signature+of+non-lunar+material+in+Apollo+regolith+breccias+with+closure+ages+approximately+1%3B79+to+1%3B70+Ga&rft.au=Fagan%2C+A+L%3BJoy%2C+K+H%3BNagashima%2C+K%3BHuss%2C+G+R%3BKring%2C+D+A%3BAnonymous&rft.aulast=Fagan&rft.aufirst=A&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Alumina+silica+ or -germanium alteration in smectite-bearing Marathon Valley, Endeavour Crater rims, Mars AN - 1832668179; 777410-101 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Mittlefehldt, D W AU - Gellert, R AU - Van Bommel, S AU - Arvidson, R E AU - Clark, B C AU - Ming, D W AU - Schroeder, C AU - Yen, A S AU - Fox, V K AU - Farrand, W H AU - Jolliff, B L AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no. 2086 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 KW - silicates KW - alteration KW - Shoemaker Formation KW - CRISM KW - textures KW - enrichment KW - smectite KW - Mars KW - clay minerals KW - terrestrial planets KW - planets KW - aluminum oxides KW - silica KW - metals KW - germanium KW - oxides KW - terrestrial comparison KW - sheet silicates KW - chemical composition KW - Matijevic Formation KW - Marathon Valley KW - Endeavour Crater KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832668179?accountid=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=Alumina%2Bsilica%2B+or+-germanium+alteration+in+smectite-bearing+Marathon+Valley%2C+Endeavour+Crater+rims%2C+Mars&rft.au=Mittlefehldt%2C+D+W%3BGellert%2C+R%3BVan+Bommel%2C+S%3BArvidson%2C+R+E%3BClark%2C+B+C%3BMing%2C+D+W%3BSchroeder%2C+C%3BYen%2C+A+S%3BFox%2C+V+K%3BFarrand%2C+W+H%3BJolliff%2C+B+L%3BAnonymous&rft.aulast=Mittlefehldt&rft.aufirst=D&rft.date=2016-01-01&rft.volume=47&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.hou.usra.edu/meetings/lpsc2016/pdf/2086.pdf LA - English DB - GeoRef N1 - Conference title - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 11 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alteration; aluminum oxides; chemical composition; clay minerals; CRISM; Endeavour Crater; enrichment; germanium; Marathon Valley; Mars; Matijevic Formation; metals; oxides; planets; sheet silicates; Shoemaker Formation; silica; silicates; smectite; terrestrial comparison; terrestrial planets; textures ER - TY - JOUR T1 - The Europa imaging system (EIS); high-reoslution imaging and topography to investigate Europa's geology, ice shell, and potential for current activity AN - 1832668164; 777378-101 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Turtle, E P AU - McEwen, A S AU - Collins, G C AU - Fletcher, L AU - Hansen, C J AU - Hayes, A G AU - Hurford, T A AU - Kirk, R L AU - Mlinar, A C Barr AU - Nimmo, F AU - Patterson, G W AU - Quick, L C AU - Soderblom, J M AU - Thomas, N AU - Ernst, C M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 1626 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832668164?accountid=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=The+Europa+imaging+system+%28EIS%29%3B+high-reoslution+imaging+and+topography+to+investigate+Europa%27s+geology%2C+ice+shell%2C+and+potential+for+current+activity&rft.au=Turtle%2C+E+P%3BMcEwen%2C+A+S%3BCollins%2C+G+C%3BFletcher%2C+L%3BHansen%2C+C+J%3BHayes%2C+A+G%3BHurford%2C+T+A%3BKirk%2C+R+L%3BMlinar%2C+A+C+Barr%3BNimmo%2C+F%3BPatterson%2C+G+W%3BQuick%2C+L+C%3BSoderblom%2C+J+M%3BThomas%2C+N%3BErnst%2C+C+M%3BAnonymous&rft.aulast=Turtle&rft.aufirst=E&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Education and engagement applications of NASA lunar and planetary mapping and modeling AN - 1832666220; 777377-74 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Day, Brian H AU - Law, Emily S AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 1523 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832666220?accountid=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=Education+and+engagement+applications+of+NASA+lunar+and+planetary+mapping+and+modeling&rft.au=Day%2C+Brian+H%3BLaw%2C+Emily+S%3BAnonymous&rft.aulast=Day&rft.aufirst=Brian&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - A miniaturized variable pressure scanning electron microscope (MVP-SEM) for in-situ Mars surface sample analysis AN - 1832666217; 777378-64 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Edmunson, Jennifer AU - Gaskin, J A AU - Jerman, G A AU - Harvey, R P AU - Doloboff, I J AU - Neidholdt, E L AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 2301 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832666217?accountid=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=A+miniaturized+variable+pressure+scanning+electron+microscope+%28MVP-SEM%29+for+in-situ+Mars+surface+sample+analysis&rft.au=Edmunson%2C+Jennifer%3BGaskin%2C+J+A%3BJerman%2C+G+A%3BHarvey%2C+R+P%3BDoloboff%2C+I+J%3BNeidholdt%2C+E+L%3BAnonymous&rft.aulast=Edmunson&rft.aufirst=Jennifer&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Effect of the presence of chlorates and perchlorates on the pyrolysis of organic compounds; implications for measurements done with the SAM experiment onboard the Curiosity Rover AN - 1832660168; 777410-59 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Millan, Maeva AU - Szopa, C AU - Buch, A AU - Belmahdi, I AU - Coll, P AU - Glavin, D P AU - Freissinet, C AU - Archer, P D, Jr AU - Sutter, B AU - Summons, R E AU - Navarro-Gonzalez, R AU - Cabane, M AU - Mahaffy, P AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no. 1418 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 KW - chlorinated hydrocarbons KW - chlorobenzene KW - experimental studies KW - gas chromatograms KW - mass spectra KW - Mars KW - perchlorate KW - terrestrial planets KW - planets KW - laboratory studies KW - Sample Analysis at Mars KW - organic compounds KW - chemical reactions KW - pyrolysis KW - chromatograms KW - Curiosity Rover KW - Mars Science Laboratory KW - chlorates KW - halogenated hydrocarbons KW - spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832660168?accountid=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=Effect+of+the+presence+of+chlorates+and+perchlorates+on+the+pyrolysis+of+organic+compounds%3B+implications+for+measurements+done+with+the+SAM+experiment+onboard+the+Curiosity+Rover&rft.au=Millan%2C+Maeva%3BSzopa%2C+C%3BBuch%2C+A%3BBelmahdi%2C+I%3BColl%2C+P%3BGlavin%2C+D+P%3BFreissinet%2C+C%3BArcher%2C+P+D%2C+Jr%3BSutter%2C+B%3BSummons%2C+R+E%3BNavarro-Gonzalez%2C+R%3BCabane%2C+M%3BMahaffy%2C+P%3BAnonymous&rft.aulast=Millan&rft.aufirst=Maeva&rft.date=2016-01-01&rft.volume=47&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.hou.usra.edu/meetings/lpsc2016/pdf/1418.pdf LA - English DB - GeoRef N1 - Conference title - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chemical reactions; chlorates; chlorinated hydrocarbons; chlorobenzene; chromatograms; Curiosity Rover; experimental studies; gas chromatograms; halogenated hydrocarbons; laboratory studies; Mars; Mars Science Laboratory; mass spectra; organic compounds; perchlorate; planets; pyrolysis; Sample Analysis at Mars; spectra; terrestrial planets ER - TY - JOUR T1 - Moonage daydream; reassessing the simple model for lunar magma ocean crystallization AN - 1832660151; 777410-49 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Rapp, J F AU - Draper, D S AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no. 2691 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 KW - silicates KW - calcium KW - igneous rocks KW - olivine group KW - simulation KW - pyroxene group KW - plutonic rocks KW - cumulates KW - aluminum KW - olivine KW - orthosilicates KW - oxides KW - framework silicates KW - chain silicates KW - alkaline earth metals KW - plagioclase KW - magma oceans KW - experimental studies KW - Moon KW - differentiation KW - spinel KW - anorthosite KW - nesosilicates KW - models KW - metals KW - magmas KW - lunar crust KW - crystallization KW - orthopyroxene KW - fractional crystallization KW - feldspar group KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832660151?accountid=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=Moonage+daydream%3B+reassessing+the+simple+model+for+lunar+magma+ocean+crystallization&rft.au=Rapp%2C+J+F%3BDraper%2C+D+S%3BAnonymous&rft.aulast=Rapp&rft.aufirst=J&rft.date=2016-01-01&rft.volume=47&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.hou.usra.edu/meetings/lpsc2016/pdf/2691.pdf LA - English DB - GeoRef N1 - Conference title - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 16 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; aluminum; anorthosite; calcium; chain silicates; crystallization; cumulates; differentiation; experimental studies; feldspar group; fractional crystallization; framework silicates; igneous rocks; lunar crust; magma oceans; magmas; metals; models; Moon; nesosilicates; olivine; olivine group; orthopyroxene; orthosilicates; oxides; plagioclase; plutonic rocks; pyroxene group; silicates; simulation; spinel ER - TY - JOUR T1 - A Raman study of carbonates and organic contents in five CM chondrites AN - 1832660147; 777410-43 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Chan, Q H S AU - Zolensky, M E AU - Bodnar, R J AU - Farley, C AU - Cheung, J C H AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no. 1403 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 KW - Santa Cruz Meteorite KW - Jbilet Winselwan Meteorite KW - stony meteorites KW - WIS 91600 KW - Wisconsin Range Meteorites KW - carbonaceous chondrites KW - metamorphism KW - temperature KW - Murchison Meteorite KW - calcite KW - dolomite KW - meteorites KW - organic compounds KW - Raman spectra KW - insoluble residues KW - thermal maturity KW - spectra KW - CM chondrites KW - chondrites KW - carbonates KW - Nogoya Meteorite KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832660147?accountid=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=A+Raman+study+of+carbonates+and+organic+contents+in+five+CM+chondrites&rft.au=Chan%2C+Q+H+S%3BZolensky%2C+M+E%3BBodnar%2C+R+J%3BFarley%2C+C%3BCheung%2C+J+C+H%3BAnonymous&rft.aulast=Chan&rft.aufirst=Q+H&rft.date=2016-01-01&rft.volume=47&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.hou.usra.edu/meetings/lpsc2016/pdf/1403.pdf LA - English DB - GeoRef N1 - Conference title - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - calcite; carbonaceous chondrites; carbonates; chondrites; CM chondrites; dolomite; insoluble residues; Jbilet Winselwan Meteorite; metamorphism; meteorites; Murchison Meteorite; Nogoya Meteorite; organic compounds; Raman spectra; Santa Cruz Meteorite; spectra; stony meteorites; temperature; thermal maturity; WIS 91600; Wisconsin Range Meteorites ER - TY - JOUR T1 - Ferrous smectites and the redox evolution of early Mars AN - 1832660135; 777410-34 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Catalano, J G AU - Chemtob, S M AU - Nickerson, R D AU - Morris, R V AU - Agresti, D G AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no. 1609 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 KW - silicates KW - near-infrared spectra KW - alteration KW - volcanic rocks KW - Noachian KW - X-ray diffraction data KW - igneous rocks KW - Mars KW - iron KW - Gale Crater KW - Mawrth Vallis KW - basalts KW - spectra KW - Eh KW - oxidation KW - smectite KW - weathering KW - Sheepbed Mudstone KW - ferrous iron KW - clay minerals KW - terrestrial planets KW - planets KW - Nili Fossae KW - metals KW - anaerobic environment KW - sheet silicates KW - leaching KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832660135?accountid=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=Ferrous+smectites+and+the+redox+evolution+of+early+Mars&rft.au=Catalano%2C+J+G%3BChemtob%2C+S+M%3BNickerson%2C+R+D%3BMorris%2C+R+V%3BAgresti%2C+D+G%3BAnonymous&rft.aulast=Catalano&rft.aufirst=J&rft.date=2016-01-01&rft.volume=47&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.hou.usra.edu/meetings/lpsc2016/pdf/1609.pdf LA - English DB - GeoRef N1 - Conference title - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alteration; anaerobic environment; basalts; clay minerals; Eh; ferrous iron; Gale Crater; igneous rocks; iron; leaching; Mars; Mawrth Vallis; metals; near-infrared spectra; Nili Fossae; Noachian; oxidation; planets; Sheepbed Mudstone; sheet silicates; silicates; smectite; spectra; terrestrial planets; volcanic rocks; weathering; X-ray diffraction data ER - TY - JOUR T1 - Are ferroan anorthosites direct products of the lunar magma ocean? AN - 1832659959; 777410-48 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Neal, C R AU - Draper, D S AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no. 1165 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 KW - silicates KW - erbium KW - plagioclase KW - magma oceans KW - Moon KW - igneous rocks KW - ferroan anorthosite KW - anorthosite KW - models KW - partitioning KW - partition coefficients KW - lanthanum KW - KREEP KW - plutonic rocks KW - metals KW - crystallization KW - framework silicates KW - rare earths KW - trace elements KW - neodymium KW - feldspar group KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832659959?accountid=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=Are+ferroan+anorthosites+direct+products+of+the+lunar+magma+ocean%3F&rft.au=Neal%2C+C+R%3BDraper%2C+D+S%3BAnonymous&rft.aulast=Neal&rft.aufirst=C&rft.date=2016-01-01&rft.volume=47&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.hou.usra.edu/meetings/lpsc2016/pdf/1165.pdf LA - English DB - GeoRef N1 - Conference title - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 19 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - anorthosite; crystallization; erbium; feldspar group; ferroan anorthosite; framework silicates; igneous rocks; KREEP; lanthanum; magma oceans; metals; models; Moon; neodymium; partition coefficients; partitioning; plagioclase; plutonic rocks; rare earths; silicates; trace elements ER - TY - JOUR T1 - Early acidification of Mars and the potential implications for biology AN - 1832659809; 777410-54 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Johnson, Sarah S AU - Goerlitz, D AU - Benison, K C AU - Mormile, M R AU - Ming, D W AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no. 2068 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 KW - silicates KW - communities KW - Archaea KW - Western Australia KW - astrobiology KW - Mars KW - salinity KW - paleoclimatology KW - acid salt lakes KW - acidic composition KW - Australia KW - pH KW - biodiversity KW - salt lakes KW - Australasia KW - sulfates KW - biomarkers KW - terrestrial planets KW - planets KW - natural analogs KW - bacteria KW - Lake Aerodrome KW - acidification KW - sheet silicates KW - Yilgarn Craton KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832659809?accountid=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=Early+acidification+of+Mars+and+the+potential+implications+for+biology&rft.au=Johnson%2C+Sarah+S%3BGoerlitz%2C+D%3BBenison%2C+K+C%3BMormile%2C+M+R%3BMing%2C+D+W%3BAnonymous&rft.aulast=Johnson&rft.aufirst=Sarah&rft.date=2016-01-01&rft.volume=47&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.hou.usra.edu/meetings/lpsc2016/pdf/2068.pdf LA - English DB - GeoRef N1 - Conference title - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 21 N1 - PubXState - TX N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - acid salt lakes; acidic composition; acidification; Archaea; astrobiology; Australasia; Australia; bacteria; biodiversity; biomarkers; communities; Lake Aerodrome; Mars; natural analogs; paleoclimatology; pH; planets; salinity; salt lakes; sheet silicates; silicates; sulfates; terrestrial planets; Western Australia; Yilgarn Craton ER - TY - JOUR T1 - Petrography and geochemistry of lunar meteorite Miller Range 13317 AN - 1832659745; 777410-75 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Zeigler, R A AU - Korotev, R L AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no. 2554 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 KW - silicates KW - Miller Range Meteorites KW - lunar meteorites KW - plagioclase KW - neutron activation analysis data KW - breccia KW - stony meteorites KW - clasts KW - achondrites KW - melts KW - meteorites KW - impact melts KW - pyroxene group KW - major elements KW - petrography KW - MIL 13317 KW - framework silicates KW - trace elements KW - basaltic composition KW - feldspar group KW - regolith KW - chain silicates KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832659745?accountid=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=Petrography+and+geochemistry+of+lunar+meteorite+Miller+Range+13317&rft.au=Zeigler%2C+R+A%3BKorotev%2C+R+L%3BAnonymous&rft.aulast=Zeigler&rft.aufirst=R&rft.date=2016-01-01&rft.volume=47&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.hou.usra.edu/meetings/lpsc2016/pdf/2554.pdf LA - English DB - GeoRef N1 - Conference title - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; basaltic composition; breccia; chain silicates; clasts; feldspar group; framework silicates; impact melts; lunar meteorites; major elements; melts; meteorites; MIL 13317; Miller Range Meteorites; neutron activation analysis data; petrography; plagioclase; pyroxene group; regolith; silicates; stony meteorites; trace elements ER - TY - JOUR T1 - Timescales for crater degradation and burial in the Phoenix landing region AN - 1832659735; 777411-70 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Dobrea, E Z Noe AU - Stoker, C R AU - Berman, D C AU - Krco, M AU - Davila, A F AU - McKay, C P AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2721 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832659735?accountid=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=Timescales+for+crater+degradation+and+burial+in+the+Phoenix+landing+region&rft.au=Dobrea%2C+E+Z+Noe%3BStoker%2C+C+R%3BBerman%2C+D+C%3BKrco%2C+M%3BDavila%2C+A+F%3BMcKay%2C+C+P%3BAnonymous&rft.aulast=Dobrea&rft.aufirst=E+Z&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Fractal growth and radial migraiton of solids; the role of porosity and compaction in an evolving nebula AN - 1832659725; 777411-81 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Estrada, Paul R AU - Cuzzi, J N AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2854 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832659725?accountid=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=Fractal+growth+and+radial+migraiton+of+solids%3B+the+role+of+porosity+and+compaction+in+an+evolving+nebula&rft.au=Estrada%2C+Paul+R%3BCuzzi%2C+J+N%3BAnonymous&rft.aulast=Estrada&rft.aufirst=Paul&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Unique view of C asteroid regolith from the Jbilet Winselwan CM chondrite AN - 1832659573; 777411-54 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Zolensky, Michael AU - Mikouchi, Takashi AU - Hagiya, Kenji AU - Ohsumi, Kazumasa AU - Komatsu, Mutsumi AU - Chan, Queenie H S AU - Le, Loan AU - Kring, David AU - Cato, Michael AU - Fagan, Amy L AU - Gross, Juliane AU - Tanaka, Ayuna AU - Takegawa, Daichi AU - Hoshikawa, Takuya AU - Yoshida, Tomoaki AU - Sawa, Naoya AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2148 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832659573?accountid=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=Unique+view+of+C+asteroid+regolith+from+the+Jbilet+Winselwan+CM+chondrite&rft.au=Zolensky%2C+Michael%3BMikouchi%2C+Takashi%3BHagiya%2C+Kenji%3BOhsumi%2C+Kazumasa%3BKomatsu%2C+Mutsumi%3BChan%2C+Queenie+H+S%3BLe%2C+Loan%3BKring%2C+David%3BCato%2C+Michael%3BFagan%2C+Amy+L%3BGross%2C+Juliane%3BTanaka%2C+Ayuna%3BTakegawa%2C+Daichi%3BHoshikawa%2C+Takuya%3BYoshida%2C+Tomoaki%3BSawa%2C+Naoya%3BAnonymous&rft.aulast=Zolensky&rft.aufirst=Michael&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Search for organic material on Mars with the thermochemolysis derivatization technique onboard the MOMA experiment AN - 1832659376; 777410-60 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Morisson, M AU - Buch, A AU - Szopa, C AU - Glavin, D AU - Freissinet, C AU - Pinnick, V AU - Goetz, W AU - Stambouli, M AU - Belmahdi, I AU - Coll, P AU - Stalport, F AU - Grand, N AU - Brinckerhoff, W B AU - Goesmann, F AU - Raulin, F AU - Mahaffy, P AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no. 2159 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 KW - Mars Organic Molecule Analyzer KW - experimental studies KW - gas chromatograms KW - optimization KW - Mars KW - temperature KW - terrestrial planets KW - planets KW - Sample Analysis at Mars KW - organic compounds KW - pyrolysis KW - chromatograms KW - derivatization KW - Curiosity Rover KW - Mars Science Laboratory KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832659376?accountid=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=Search+for+organic+material+on+Mars+with+the+thermochemolysis+derivatization+technique+onboard+the+MOMA+experiment&rft.au=Morisson%2C+M%3BBuch%2C+A%3BSzopa%2C+C%3BGlavin%2C+D%3BFreissinet%2C+C%3BPinnick%2C+V%3BGoetz%2C+W%3BStambouli%2C+M%3BBelmahdi%2C+I%3BColl%2C+P%3BStalport%2C+F%3BGrand%2C+N%3BBrinckerhoff%2C+W+B%3BGoesmann%2C+F%3BRaulin%2C+F%3BMahaffy%2C+P%3BAnonymous&rft.aulast=Morisson&rft.aufirst=M&rft.date=2016-01-01&rft.volume=47&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.hou.usra.edu/meetings/lpsc2016/pdf/2159.pdf LA - English DB - GeoRef N1 - Conference title - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chromatograms; Curiosity Rover; derivatization; experimental studies; gas chromatograms; Mars; Mars Organic Molecule Analyzer; Mars Science Laboratory; optimization; organic compounds; planets; pyrolysis; Sample Analysis at Mars; temperature; terrestrial planets ER - TY - JOUR T1 - Calibration of the fluorine, chlorine and hydrogen content of apatites with the Chemcam libs instrument AN - 1832659339; 777378-92 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Meslin, P-Y AU - Cicutto, L AU - Forni, O AU - Drouet, C AU - Rapin, W AU - Nachon, M AU - Cousin, A AU - Blank, J G AU - McCubbin, F M AU - Gasnault, O AU - Newsom, H AU - Mangold, N AU - Schroeder, S AU - Sautter, V AU - Maurice AU - Wiens, R C AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 1703 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832659339?accountid=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=Calibration+of+the+fluorine%2C+chlorine+and+hydrogen+content+of+apatites+with+the+Chemcam+libs+instrument&rft.au=Meslin%2C+P-Y%3BCicutto%2C+L%3BForni%2C+O%3BDrouet%2C+C%3BRapin%2C+W%3BNachon%2C+M%3BCousin%2C+A%3BBlank%2C+J+G%3BMcCubbin%2C+F+M%3BGasnault%2C+O%3BNewsom%2C+H%3BMangold%2C+N%3BSchroeder%2C+S%3BSautter%2C+V%3BMaurice%3BWiens%2C+R+C%3BAnonymous&rft.aulast=Meslin&rft.aufirst=P-Y&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The Mapping and Planetary Spatial Infrastructure Team (MAPSIT); addressing strategic planning needs for planetary cartography AN - 1832659254; 777410-99 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lawrence, S J AU - Hagerty, J AU - Gaddis, L R AU - Archinal, B A AU - Radebaugh, J AU - Byrne, S AU - Sutton, S AU - DellaGiustina, D AU - Thomson, B AU - Mazarico, E AU - Williams, D AU - Skinner, J AU - Hare, T AU - Fergason, R AU - Laura, J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no. 1710 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 KW - survey organizations KW - planning KW - cartography KW - U. S. Geological Survey KW - NASA KW - government agencies KW - Mapping and Planetary Spatial Infrastructure Team KW - planetary science KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832659254?accountid=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=The+Mapping+and+Planetary+Spatial+Infrastructure+Team+%28MAPSIT%29%3B+addressing+strategic+planning+needs+for+planetary+cartography&rft.au=Lawrence%2C+S+J%3BHagerty%2C+J%3BGaddis%2C+L+R%3BArchinal%2C+B+A%3BRadebaugh%2C+J%3BByrne%2C+S%3BSutton%2C+S%3BDellaGiustina%2C+D%3BThomson%2C+B%3BMazarico%2C+E%3BWilliams%2C+D%3BSkinner%2C+J%3BHare%2C+T%3BFergason%2C+R%3BLaura%2C+J%3BAnonymous&rft.aulast=Lawrence&rft.aufirst=S&rft.date=2016-01-01&rft.volume=47&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.hou.usra.edu/meetings/lpsc2016/pdf/1710.pdf LA - English DB - GeoRef N1 - Conference title - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - 1 table N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - cartography; government agencies; Mapping and Planetary Spatial Infrastructure Team; NASA; planetary science; planning; survey organizations; U. S. Geological Survey ER - TY - JOUR T1 - Mineralogy of experimentally heated Tagish Lake AN - 1832659119; 777410-45 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nakato, A AU - Chan, Q H S AU - Nakamura, T AU - Kebukawa, Y AU - Zolensky, M E AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no. 1218 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 KW - silicates KW - stony meteorites KW - X-ray diffraction data KW - Tagish Lake Meteorite KW - olivine group KW - crystallinity KW - temperature KW - meteorites KW - pyroxene group KW - olivine KW - orthosilicates KW - oxides KW - chondrites KW - troilite KW - chain silicates KW - experimental studies KW - Belgica Meteorites KW - secondary minerals KW - electron microscopy data KW - thermal metamorphism KW - carbonaceous chondrites KW - metamorphism KW - nesosilicates KW - organic compounds KW - sheet silicates KW - dehydration KW - transformations KW - sulfides KW - SEM data KW - magnetite KW - Belgica group meteorites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832659119?accountid=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=Mineralogy+of+experimentally+heated+Tagish+Lake&rft.au=Nakato%2C+A%3BChan%2C+Q+H+S%3BNakamura%2C+T%3BKebukawa%2C+Y%3BZolensky%2C+M+E%3BAnonymous&rft.aulast=Nakato&rft.aufirst=A&rft.date=2016-01-01&rft.volume=47&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.hou.usra.edu/meetings/lpsc2016/pdf/1218.pdf LA - English DB - GeoRef N1 - Conference title - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Belgica group meteorites; Belgica Meteorites; carbonaceous chondrites; chain silicates; chondrites; crystallinity; dehydration; electron microscopy data; experimental studies; magnetite; metamorphism; meteorites; nesosilicates; olivine; olivine group; organic compounds; orthosilicates; oxides; pyroxene group; secondary minerals; SEM data; sheet silicates; silicates; stony meteorites; sulfides; Tagish Lake Meteorite; temperature; thermal metamorphism; transformations; troilite; X-ray diffraction data ER - TY - JOUR T1 - Recurring slope lineae on Mars are not fed by subsurface water AN - 1832659091; 777411-64 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Wilson, J T AU - Eke, V R AU - Massey, R J AU - Elphic, R C AU - Feldman, W C AU - Maurice, S AU - Teodoro, L F A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2813 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832659091?accountid=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=Recurring+slope+lineae+on+Mars+are+not+fed+by+subsurface+water&rft.au=Wilson%2C+J+T%3BEke%2C+V+R%3BMassey%2C+R+J%3BElphic%2C+R+C%3BFeldman%2C+W+C%3BMaurice%2C+S%3BTeodoro%2C+L+F+A%3BAnonymous&rft.aulast=Wilson&rft.aufirst=J&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Stretch marks on phobos AN - 1832659036; 777411-3 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Hurford, T A AU - Asphaug, E AU - Spitale, J N AU - Hemingway, D AU - Rhoden, A R AU - Henning, W G AU - Bills, B G AU - Kattenhorn, S A AU - Walker, M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstractno 2575 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832659036?accountid=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=Stretch+marks+on+phobos&rft.au=Hurford%2C+T+A%3BAsphaug%2C+E%3BSpitale%2C+J+N%3BHemingway%2C+D%3BRhoden%2C+A+R%3BHenning%2C+W+G%3BBills%2C+B+G%3BKattenhorn%2C+S+A%3BWalker%2C+M%3BAnonymous&rft.aulast=Hurford&rft.aufirst=T&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - North polar spiral trough in-situ formation as a water-ice source to lower latitude glacial and periglacial environments on Mars AN - 1832659003; 777377-114 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Rodriguez, J A P AU - Fairen, A G AU - Miyamoto, H AU - Gulick, Virginia AU - Glines, Natalie AU - Costard, Francois AU - Platz, Thomas AU - van Gasselt, Stephan AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 2605 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832659003?accountid=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=North+polar+spiral+trough+in-situ+formation+as+a+water-ice+source+to+lower+latitude+glacial+and+periglacial+environments+on+Mars&rft.au=Rodriguez%2C+J+A+P%3BFairen%2C+A+G%3BMiyamoto%2C+H%3BGulick%2C+Virginia%3BGlines%2C+Natalie%3BCostard%2C+Francois%3BPlatz%2C+Thomas%3Bvan+Gasselt%2C+Stephan%3BAnonymous&rft.aulast=Rodriguez&rft.aufirst=J+A&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - A sample delivery system for planetary missions, that excavates, filters and dispenses sample AN - 1832658994; 777378-74 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Willson, David AU - Stoker, C R AU - Lemke, L G AU - Duncan, A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 3011 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832658994?accountid=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=A+sample+delivery+system+for+planetary+missions%2C+that+excavates%2C+filters+and+dispenses+sample&rft.au=Willson%2C+David%3BStoker%2C+C+R%3BLemke%2C+L+G%3BDuncan%2C+A%3BAnonymous&rft.aulast=Willson&rft.aufirst=David&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Searching for pyroclastic deposits on Venus AN - 1832658985; 777410-22 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Carter, Lynn M AU - Douglas, M M AU - Campbell, B A AU - Campbell, D B AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no. 2121 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 KW - Sif Mons KW - volcanic rocks KW - lava flows KW - Magellan Program KW - igneous rocks KW - Venus KW - Nehalennia Corona KW - circular polarization ratio KW - radar methods KW - polarimetry KW - explosive eruptions KW - terrestrial planets KW - pyroclastics KW - planets KW - volcanism KW - volcanoes KW - Tuli Mons KW - shield volcanoes KW - domes KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832658985?accountid=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=Searching+for+pyroclastic+deposits+on+Venus&rft.au=Carter%2C+Lynn+M%3BDouglas%2C+M+M%3BCampbell%2C+B+A%3BCampbell%2C+D+B%3BAnonymous&rft.aulast=Carter&rft.aufirst=Lynn&rft.date=2016-01-01&rft.volume=47&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.hou.usra.edu/meetings/lpsc2016/pdf/2121.pdf LA - English DB - GeoRef N1 - Conference title - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - circular polarization ratio; domes; explosive eruptions; igneous rocks; lava flows; Magellan Program; Nehalennia Corona; planets; polarimetry; pyroclastics; radar methods; shield volcanoes; Sif Mons; terrestrial planets; Tuli Mons; Venus; volcanic rocks; volcanism; volcanoes ER - TY - JOUR T1 - High-resolution observations of CO toward massive young stellar objects; investigations of protoplanetary carbon and oxygen in the Galaxy AN - 1832658983; 777410-2 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Smith, Rachel L AU - Blake, Geoffrey A AU - Boogert, A C Adwin AU - Pontoppidan, Klaus M AU - Lockwood, Alexandra C AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no. 3028 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 KW - oxygen KW - isotopes KW - isotope ratios KW - C-13/C-12 KW - prebiotic chemistry KW - cosmochemistry KW - O-18/O-16 KW - stable isotopes KW - self shielding KW - carbon dioxide KW - young stellar objects KW - carbon monoxide KW - Milky Way Galaxy KW - carbon KW - isotopologues KW - O-17/O-16 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832658983?accountid=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=High-resolution+observations+of+CO+toward+massive+young+stellar+objects%3B+investigations+of+protoplanetary+carbon+and+oxygen+in+the+Galaxy&rft.au=Smith%2C+Rachel+L%3BBlake%2C+Geoffrey+A%3BBoogert%2C+A+C+Adwin%3BPontoppidan%2C+Klaus+M%3BLockwood%2C+Alexandra+C%3BAnonymous&rft.aulast=Smith&rft.aufirst=Rachel&rft.date=2016-01-01&rft.volume=47&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.hou.usra.edu/meetings/lpsc2016/pdf/3028.pdf LA - English DB - GeoRef N1 - Conference title - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - SuppNotes - Accessed on Sept. 13, 2016 N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - C-13/C-12; carbon; carbon dioxide; carbon monoxide; cosmochemistry; isotope ratios; isotopes; isotopologues; Milky Way Galaxy; O-17/O-16; O-18/O-16; oxygen; prebiotic chemistry; self shielding; stable isotopes; young stellar objects ER - TY - JOUR T1 - Petrologic and oxygen-isotopic investigitons of eucritic and anomalous mafic achondrites AN - 1832658975; 777411-87 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Mittlefehldt, David W AU - Greenwood, R C AU - Peng, Z X AU - Ross, D K AU - Berger, E L AU - Barrett, T J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1240 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832658975?accountid=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=Petrologic+and+oxygen-isotopic+investigitons+of+eucritic+and+anomalous+mafic+achondrites&rft.au=Mittlefehldt%2C+David+W%3BGreenwood%2C+R+C%3BPeng%2C+Z+X%3BRoss%2C+D+K%3BBerger%2C+E+L%3BBarrett%2C+T+J%3BAnonymous&rft.aulast=Mittlefehldt&rft.aufirst=David&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The ames vertical gun range AN - 1832658946; 777411-89 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Karcz, John S AU - Bowling, D AU - Cornelison, C AU - Parrish, A AU - Perez, A AU - Raiche, G AU - Wiens, J-P AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2599 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832658946?accountid=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=The+ames+vertical+gun+range&rft.au=Karcz%2C+John+S%3BBowling%2C+D%3BCornelison%2C+C%3BParrish%2C+A%3BPerez%2C+A%3BRaiche%2C+G%3BWiens%2C+J-P%3BAnonymous&rft.aulast=Karcz&rft.aufirst=John&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The biomolecule sequencer project; nanopore sequencing as a dual-use tool for crew health and astrobiology investigations AN - 1832658847; 777378-80 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - John, K K AU - Botkin, D J AU - Burton, Aaron S AU - Castro-Wallace, S L AU - Chaput, J D AU - Dworkin, J P AU - Lehman, N AU - Lupisella, M L AU - Mason, C E AU - Smith, D J AU - Stahl, S AU - Switzer, C AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 2982 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832658847?accountid=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=The+biomolecule+sequencer+project%3B+nanopore+sequencing+as+a+dual-use+tool+for+crew+health+and+astrobiology+investigations&rft.au=John%2C+K+K%3BBotkin%2C+D+J%3BBurton%2C+Aaron+S%3BCastro-Wallace%2C+S+L%3BChaput%2C+J+D%3BDworkin%2C+J+P%3BLehman%2C+N%3BLupisella%2C+M+L%3BMason%2C+C+E%3BSmith%2C+D+J%3BStahl%2C+S%3BSwitzer%2C+C%3BAnonymous&rft.aulast=John&rft.aufirst=K&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Constraints on mantle plume melting conditions in the Martian mantle based on improved melting phase relationships of olivine-phyric shergottite Yamato 980459 AN - 1832658806; 777410-27 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Kiefer, Walter S AU - Rapp, Jennifer F AU - Usui, Tomohiro AU - Draper, David S AU - Filiberto, Justin AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no. 1817 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 KW - silicates KW - stony meteorites KW - Martian meteorites KW - mantle KW - olivine group KW - Mars KW - core-mantle boundary KW - temperature KW - SNC Meteorites KW - lower mantle KW - meteorites KW - melting KW - phase equilibria KW - olivine KW - orthosilicates KW - water content KW - mantle plumes KW - Yamato Meteorites KW - Y 980459 KW - achondrites KW - terrestrial planets KW - nesosilicates KW - models KW - planets KW - shergottite KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832658806?accountid=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=Constraints+on+mantle+plume+melting+conditions+in+the+Martian+mantle+based+on+improved+melting+phase+relationships+of+olivine-phyric+shergottite+Yamato+980459&rft.au=Kiefer%2C+Walter+S%3BRapp%2C+Jennifer+F%3BUsui%2C+Tomohiro%3BDraper%2C+David+S%3BFiliberto%2C+Justin%3BAnonymous&rft.aulast=Kiefer&rft.aufirst=Walter&rft.date=2016-01-01&rft.volume=47&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.hou.usra.edu/meetings/lpsc2016/pdf/1817.pdf LA - English DB - GeoRef N1 - Conference title - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 23 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; core-mantle boundary; lower mantle; mantle; mantle plumes; Mars; Martian meteorites; melting; meteorites; models; nesosilicates; olivine; olivine group; orthosilicates; phase equilibria; planets; shergottite; silicates; SNC Meteorites; stony meteorites; temperature; terrestrial planets; water content; Y 980459; Yamato Meteorites ER - TY - JOUR T1 - Strata-1; an international space station experiment into fundamental regolith processes in mcirogravity AN - 1832658795; 777378-75 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Fries, Marc AU - Abell, P AU - Brisset, J AU - Britt, D AU - Colwell, J AU - Durda, D AU - Dove, A AU - Graham, L AU - Hartzell, C AU - John, K AU - Leonard, M AU - Love, S AU - Sanchez, D P AU - Scheeres, D J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 2799 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832658795?accountid=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=Strata-1%3B+an+international+space+station+experiment+into+fundamental+regolith+processes+in+mcirogravity&rft.au=Fries%2C+Marc%3BAbell%2C+P%3BBrisset%2C+J%3BBritt%2C+D%3BColwell%2C+J%3BDurda%2C+D%3BDove%2C+A%3BGraham%2C+L%3BHartzell%2C+C%3BJohn%2C+K%3BLeonard%2C+M%3BLove%2C+S%3BSanchez%2C+D+P%3BScheeres%2C+D+J%3BAnonymous&rft.aulast=Fries&rft.aufirst=Marc&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The germanium dichotomy in Martian meteorites AN - 1832658591; 777410-33 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Humayun, M AU - S, Yang AU - Righter, K AU - Zanda, B AU - Hewins, R H AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no. 2459 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 KW - silicates KW - magnesium KW - nakhlite KW - stony meteorites KW - Martian meteorites KW - chassignite KW - mass spectra KW - olivine group KW - SNC Meteorites KW - assimilation KW - meteorites KW - pyroxene group KW - silica KW - olivine KW - orthosilicates KW - spectra KW - degassing KW - chain silicates KW - alkaline earth metals KW - magma oceans KW - achondrites KW - nesosilicates KW - ICP mass spectra KW - volatiles KW - shergottite KW - metals KW - magmas KW - germanium KW - nickel KW - fractional crystallization KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832658591?accountid=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=The+germanium+dichotomy+in+Martian+meteorites&rft.au=Humayun%2C+M%3BS%2C+Yang%3BRighter%2C+K%3BZanda%2C+B%3BHewins%2C+R+H%3BAnonymous&rft.aulast=Humayun&rft.aufirst=M&rft.date=2016-01-01&rft.volume=47&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.hou.usra.edu/meetings/lpsc2016/pdf/2459.pdf LA - English DB - GeoRef N1 - Conference title - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 16 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - achondrites; alkaline earth metals; assimilation; chain silicates; chassignite; degassing; fractional crystallization; germanium; ICP mass spectra; magma oceans; magmas; magnesium; Martian meteorites; mass spectra; metals; meteorites; nakhlite; nesosilicates; nickel; olivine; olivine group; orthosilicates; pyroxene group; shergottite; silica; silicates; SNC Meteorites; spectra; stony meteorites; volatiles ER - TY - JOUR T1 - High-temperature, perhaps silicic, volcanism on Mars evidenced by tridymite detection in high-SIO (sub 2) sedimentary rock at Gale Crater, Mars AN - 1832658573; 777379-90 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Morris, Richard V AU - Vaniman, D T AU - Blake, D F AU - Gellert, R AU - Chipera, S J AU - Rampe, E B AU - Ming, D W AU - Morrison, S M AU - Downs, R T AU - Treiman, A H AU - Yen, A S AU - Achilles, C N AU - Bristow, T F AU - Crisp, J A AU - Des Marais, D J AU - Farmer, J D AU - Fendrich, K V AU - Frydenvang, J AU - Graff, T G AU - Grotzinger, J P AU - Morookian, J M AU - Schwenzer, S P AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstractno 2581 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832658573?accountid=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=High-temperature%2C+perhaps+silicic%2C+volcanism+on+Mars+evidenced+by+tridymite+detection+in+high-SIO+%28sub+2%29+sedimentary+rock+at+Gale+Crater%2C+Mars&rft.au=Morris%2C+Richard+V%3BVaniman%2C+D+T%3BBlake%2C+D+F%3BGellert%2C+R%3BChipera%2C+S+J%3BRampe%2C+E+B%3BMing%2C+D+W%3BMorrison%2C+S+M%3BDowns%2C+R+T%3BTreiman%2C+A+H%3BYen%2C+A+S%3BAchilles%2C+C+N%3BBristow%2C+T+F%3BCrisp%2C+J+A%3BDes+Marais%2C+D+J%3BFarmer%2C+J+D%3BFendrich%2C+K+V%3BFrydenvang%2C+J%3BGraff%2C+T+G%3BGrotzinger%2C+J+P%3BMorookian%2C+J+M%3BSchwenzer%2C+S+P%3BAnonymous&rft.aulast=Morris&rft.aufirst=Richard&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Remote raman detection of feldspars under daylight condition using a compact remote raman+LIBS+fluorescence system AN - 1832658568; 777378-42 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Misra, A K AU - Sharma, S K AU - Berlanga, G AU - Acosta-Maeda, T E AU - Clegg, S M AU - Wiens, R C AU - Abedin, M N AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 1408 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832658568?accountid=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=Remote+raman+detection+of+feldspars+under+daylight+condition+using+a+compact+remote+raman%2BLIBS%2Bfluorescence+system&rft.au=Misra%2C+A+K%3BSharma%2C+S+K%3BBerlanga%2C+G%3BAcosta-Maeda%2C+T+E%3BClegg%2C+S+M%3BWiens%2C+R+C%3BAbedin%2C+M+N%3BAnonymous&rft.aulast=Misra&rft.aufirst=A&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The origin of Mercury's surface composition, an experimental investigation AN - 1832658501; 777410-15 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Boujibar, A AU - Righter, K AU - Rapp, J F AU - Ross, D K AU - Pando, K M AU - Danielson, L R AU - Fontaine, E AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no. 2925 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 KW - magnesium KW - stony meteorites KW - partial melting KW - mantle KW - melts KW - meteorites KW - melting KW - mixing KW - mass balance KW - Mercury Planet KW - enstatite chondrites KW - Coloris Basin KW - chondrites KW - chemical composition KW - surface properties KW - alkaline earth metals KW - experimental studies KW - pressure KW - silicate melts KW - depth KW - terrestrial planets KW - planets KW - metals KW - Rachmaninoff Basin KW - MESSENGER Mission KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832658501?accountid=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=The+origin+of+Mercury%27s+surface+composition%2C+an+experimental+investigation&rft.au=Boujibar%2C+A%3BRighter%2C+K%3BRapp%2C+J+F%3BRoss%2C+D+K%3BPando%2C+K+M%3BDanielson%2C+L+R%3BFontaine%2C+E%3BAnonymous&rft.aulast=Boujibar&rft.aufirst=A&rft.date=2016-01-01&rft.volume=47&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.hou.usra.edu/meetings/lpsc2016/pdf/2925.pdf LA - English DB - GeoRef N1 - Conference title - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Sept. 16, 2016 N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; chemical composition; chondrites; Coloris Basin; depth; enstatite chondrites; experimental studies; magnesium; mantle; mass balance; melting; melts; Mercury Planet; MESSENGER Mission; metals; meteorites; mixing; partial melting; planets; pressure; Rachmaninoff Basin; silicate melts; stony meteorites; surface properties; terrestrial planets ER - TY - JOUR T1 - Perchlorate reducing bacteria; evaluating the potential for growth utilizing nutrient sources identified on Mars AN - 1832658452; 777410-55 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bywaters, Kathryn F AU - Quinn, Richard C AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no. 2946 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 KW - growth rates KW - experimental studies KW - nitrates KW - astrobiology KW - Mars KW - phosphates KW - perchlorate KW - nitrogen KW - terrestrial planets KW - nutrients KW - planets KW - energy sources KW - carbon KW - bacteria KW - reduction KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832658452?accountid=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=Perchlorate+reducing+bacteria%3B+evaluating+the+potential+for+growth+utilizing+nutrient+sources+identified+on+Mars&rft.au=Bywaters%2C+Kathryn+F%3BQuinn%2C+Richard+C%3BAnonymous&rft.aulast=Bywaters&rft.aufirst=Kathryn&rft.date=2016-01-01&rft.volume=47&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.hou.usra.edu/meetings/lpsc2016/pdf/2946.pdf LA - English DB - GeoRef N1 - Conference title - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - astrobiology; bacteria; carbon; energy sources; experimental studies; growth rates; Mars; nitrates; nitrogen; nutrients; perchlorate; phosphates; planets; reduction; terrestrial planets ER - TY - JOUR T1 - Ultra-compact raman spectrograph for planetary surface inspection AN - 1832658301; 777378-35 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Abedin, M N AU - Bradley, A T AU - Misra, A K AU - Sharma, S K AU - Osmundsen, J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 1085 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832658301?accountid=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=Ultra-compact+raman+spectrograph+for+planetary+surface+inspection&rft.au=Abedin%2C+M+N%3BBradley%2C+A+T%3BMisra%2C+A+K%3BSharma%2C+S+K%3BOsmundsen%2C+J%3BAnonymous&rft.aulast=Abedin&rft.aufirst=M&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - A global degree and order 1200 model of the lunr gravity field using grail mission data AN - 1832658212; 777377-124 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Goossens, Sander AU - Lemoine, Frank G AU - Sabaka, Terence J AU - Nicholas, Joseph B AU - Mazarico, Erwan AU - Rowlands, David D AU - Loomis, Bryant D AU - Chinn, Douglas S AU - Neumann, Gregory A AU - Smith, David E AU - Zuber, Maria T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 1484 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832658212?accountid=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=A+global+degree+and+order+1200+model+of+the+lunr+gravity+field+using+grail+mission+data&rft.au=Goossens%2C+Sander%3BLemoine%2C+Frank+G%3BSabaka%2C+Terence+J%3BNicholas%2C+Joseph+B%3BMazarico%2C+Erwan%3BRowlands%2C+David+D%3BLoomis%2C+Bryant+D%3BChinn%2C+Douglas+S%3BNeumann%2C+Gregory+A%3BSmith%2C+David+E%3BZuber%2C+Maria+T%3BAnonymous&rft.aulast=Goossens&rft.aufirst=Sander&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Meteorite fractures and scaling for atmospheric entry AN - 1832658115; 777373-6 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bryson, Kathryn L AU - Ostrowski, D R AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2619 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832658115?accountid=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=Meteorite+fractures+and+scaling+for+atmospheric+entry&rft.au=Bryson%2C+Kathryn+L%3BOstrowski%2C+D+R%3BAnonymous&rft.aulast=Bryson&rft.aufirst=Kathryn&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The current stress state of the Moon; implications for lunar seismic activity AN - 1832658092; 777377-126 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Watters, T R AU - Weber, R C AU - Collins, G C AU - JOhnson, C L AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 1642 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832658092?accountid=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=The+current+stress+state+of+the+Moon%3B+implications+for+lunar+seismic+activity&rft.au=Watters%2C+T+R%3BWeber%2C+R+C%3BCollins%2C+G+C%3BJOhnson%2C+C+L%3BAnonymous&rft.aulast=Watters&rft.aufirst=T&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The map-Xmu XRF imaging spectrometer AN - 1832658027; 777378-60 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Sarrazin, P AU - Blake, D AU - Thompson, K AU - Gailhanou, M AU - Chen, J AU - Bristow, T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 2883 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832658027?accountid=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=The+map-Xmu+XRF+imaging+spectrometer&rft.au=Sarrazin%2C+P%3BBlake%2C+D%3BThompson%2C+K%3BGailhanou%2C+M%3BChen%2C+J%3BBristow%2C+T%3BAnonymous&rft.aulast=Sarrazin&rft.aufirst=P&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - In situ U-Pb age analysis of Apolo 17 impact melt breccias AN - 1832657901; 777376-72 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Shaulis, Barry J AU - Kring, David A AU - Lapen, Thomas J AU - Treiman, Allan H AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2033 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832657901?accountid=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=In+situ+U-Pb+age+analysis+of+Apolo+17+impact+melt+breccias&rft.au=Shaulis%2C+Barry+J%3BKring%2C+David+A%3BLapen%2C+Thomas+J%3BTreiman%2C+Allan+H%3BAnonymous&rft.aulast=Shaulis&rft.aufirst=Barry&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The psyche gamma-ray and neutron spectrometer; characterizing the composition of a metal-rich body using nuclear spectroscopy AN - 1832657543; 777378-48 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lawrence, David J AU - Peplowski, Patrick N AU - Goldsten, John O AU - Burks, Morgan AU - Beck, Andrew W AU - Elkins-Tanton, Linda T AU - Jun, Insoo AU - McCoy, Timothy J AU - Polanskey, Carol A AU - Prettyman, Thomas H AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 1622 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832657543?accountid=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=The+psyche+gamma-ray+and+neutron+spectrometer%3B+characterizing+the+composition+of+a+metal-rich+body+using+nuclear+spectroscopy&rft.au=Lawrence%2C+David+J%3BPeplowski%2C+Patrick+N%3BGoldsten%2C+John+O%3BBurks%2C+Morgan%3BBeck%2C+Andrew+W%3BElkins-Tanton%2C+Linda+T%3BJun%2C+Insoo%3BMcCoy%2C+Timothy+J%3BPolanskey%2C+Carol+A%3BPrettyman%2C+Thomas+H%3BAnonymous&rft.aulast=Lawrence&rft.aufirst=David&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Thermally induced stresses in boulders on the Moon; implications for breakdown AN - 1832657293; 777376-68 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Molaro, J L AU - Hayne, P O AU - Byrne, S AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2919 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832657293?accountid=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=Thermally+induced+stresses+in+boulders+on+the+Moon%3B+implications+for+breakdown&rft.au=Molaro%2C+J+L%3BHayne%2C+P+O%3BByrne%2C+S%3BAnonymous&rft.aulast=Molaro&rft.aufirst=J&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - High resolution observations of active and passive thermal emission from enceladus' South Pole in 2015; the closest and the coldest AN - 1832657287; 777379-64 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Spencer, J R AU - Howett, C J A AU - Verbiscer, A J AU - Hurford, T A AU - Gorius, N J P AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstractno 2860 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832657287?accountid=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=High+resolution+observations+of+active+and+passive+thermal+emission+from+enceladus%27+South+Pole+in+2015%3B+the+closest+and+the+coldest&rft.au=Spencer%2C+J+R%3BHowett%2C+C+J+A%3BVerbiscer%2C+A+J%3BHurford%2C+T+A%3BGorius%2C+N+J+P%3BAnonymous&rft.aulast=Spencer&rft.aufirst=J&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Deliquescence-induced hydration of subsurface minerals at Gale Crater, Mars AN - 1832657206; 777377-118 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Rivera-Valentin, E G AU - Nuding, D L AU - Chevrier, V F AU - Martin-Torres, F J AU - Zorzano, M-P AU - Gough, R V AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 2371 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832657206?accountid=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=Deliquescence-induced+hydration+of+subsurface+minerals+at+Gale+Crater%2C+Mars&rft.au=Rivera-Valentin%2C+E+G%3BNuding%2C+D+L%3BChevrier%2C+V+F%3BMartin-Torres%2C+F+J%3BZorzano%2C+M-P%3BGough%2C+R+V%3BAnonymous&rft.aulast=Rivera-Valentin&rft.aufirst=E&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Near infrared spectroscopy of liquid hydrocarbon mixtures; application for in-situ Titan Lake Missions AN - 1832652000; 777378-45 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Hadnott, B H AU - Hodyss, R AU - Cable, M L AU - Vu, T H AU - Hayes, A H AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 2051 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832652000?accountid=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=Near+infrared+spectroscopy+of+liquid+hydrocarbon+mixtures%3B+application+for+in-situ+Titan+Lake+Missions&rft.au=Hadnott%2C+B+H%3BHodyss%2C+R%3BCable%2C+M+L%3BVu%2C+T+H%3BHayes%2C+A+H%3BAnonymous&rft.aulast=Hadnott&rft.aufirst=B&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Gamma-ray spectroscopy of asteroid 16 psyche; expected performance of the psyche gamma-ray spectrometer AN - 1832651448; 777378-47 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Peplowski, Patrick N AU - Lawrence, David J AU - Goldsten, John O AU - Burks, Morgan AU - Beck, Andrew W AU - Elkins-Tanton, Linda T AU - Jun, Insoo AU - McCoy, Timothy J AU - Prettyman, Thomas H AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 1394 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832651448?accountid=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=Gamma-ray+spectroscopy+of+asteroid+16+psyche%3B+expected+performance+of+the+psyche+gamma-ray+spectrometer&rft.au=Peplowski%2C+Patrick+N%3BLawrence%2C+David+J%3BGoldsten%2C+John+O%3BBurks%2C+Morgan%3BBeck%2C+Andrew+W%3BElkins-Tanton%2C+Linda+T%3BJun%2C+Insoo%3BMcCoy%2C+Timothy+J%3BPrettyman%2C+Thomas+H%3BAnonymous&rft.aulast=Peplowski&rft.aufirst=Patrick&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Cartographic and geospatial infrastructure planning in support of human planetary exploration based on lessons learned from the Desert Research and Technology Studies AN - 1832650541; 777410-12 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bleacher, Jacob E AU - Eppler, D E AU - Garry, W B AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no. 2341 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 KW - cartography KW - in situ resource utilization KW - landing sites KW - Desert Research and Technology Studies KW - planets KW - topography KW - planning KW - natural analogs KW - Desert RATS KW - infrastructure KW - human exploration KW - accuracy KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832650541?accountid=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=Cartographic+and+geospatial+infrastructure+planning+in+support+of+human+planetary+exploration+based+on+lessons+learned+from+the+Desert+Research+and+Technology+Studies&rft.au=Bleacher%2C+Jacob+E%3BEppler%2C+D+E%3BGarry%2C+W+B%3BAnonymous&rft.aulast=Bleacher&rft.aufirst=Jacob&rft.date=2016-01-01&rft.volume=47&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.hou.usra.edu/meetings/lpsc2016/pdf/2341.pdf LA - English DB - GeoRef N1 - Conference title - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 6 N1 - PubXState - TX N1 - SuppNotes - Accessed on Sept. 16, 2016 N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - accuracy; cartography; Desert RATS; Desert Research and Technology Studies; human exploration; in situ resource utilization; infrastructure; landing sites; natural analogs; planets; planning; topography ER - TY - JOUR T1 - Mars sedimentary rock metrology form Mahli quantittive relief models AN - 1832649839; 776760-7 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Garvin, James B AU - Edgett, K S AU - Fey, D M AU - Dotson, R AU - Frawley, J AU - Kennedy, M R AU - Krezoski, G M AU - Minitti, M E AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2834 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832649839?accountid=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=Mars+sedimentary+rock+metrology+form+Mahli+quantittive+relief+models&rft.au=Garvin%2C+James+B%3BEdgett%2C+K+S%3BFey%2C+D+M%3BDotson%2C+R%3BFrawley%2C+J%3BKennedy%2C+M+R%3BKrezoski%2C+G+M%3BMinitti%2C+M+E%3BAnonymous&rft.aulast=Garvin&rft.aufirst=James&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Ceres composition by Vir on Dawn; highlights of the first yer of observation AN - 1832649752; 776760-62 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - De Sanctis, M C AU - Ammannito, E AU - Carrozzo, F G AU - Ciarniello, M AU - Frigeri, A AU - Longobardo, A AU - Palomba, E AU - Raponi, A AU - Tosi, F AU - Zambon, F AU - Fonte, S AU - Formisano, M AU - Giardino, M AU - Magni, G AU - Capaccioni, F AU - Capria, M T AU - Marchi, S AU - Pieters, C M AU - Ehlmann, B L AU - McCord, T B AU - Combe, J-Ph AU - McSween, H Y AU - Jaumann, R AU - McFadden, L A AU - Joy, S AU - Polanskey, C A AU - Rayman, M D AU - Raymond, C A AU - Russell, C T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1832 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832649752?accountid=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=Ceres+composition+by+Vir+on+Dawn%3B+highlights+of+the+first+yer+of+observation&rft.au=De+Sanctis%2C+M+C%3BAmmannito%2C+E%3BCarrozzo%2C+F+G%3BCiarniello%2C+M%3BFrigeri%2C+A%3BLongobardo%2C+A%3BPalomba%2C+E%3BRaponi%2C+A%3BTosi%2C+F%3BZambon%2C+F%3BFonte%2C+S%3BFormisano%2C+M%3BGiardino%2C+M%3BMagni%2C+G%3BCapaccioni%2C+F%3BCapria%2C+M+T%3BMarchi%2C+S%3BPieters%2C+C+M%3BEhlmann%2C+B+L%3BMcCord%2C+T+B%3BCombe%2C+J-Ph%3BMcSween%2C+H+Y%3BJaumann%2C+R%3BMcFadden%2C+L+A%3BJoy%2C+S%3BPolanskey%2C+C+A%3BRayman%2C+M+D%3BRaymond%2C+C+A%3BRussell%2C+C+T%3BAnonymous&rft.aulast=De+Sanctis&rft.aufirst=M&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Dielectric breakdown wethering of lunar regolith AN - 1832649558; 777376-95 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Jordan, A P AU - Stubbs, T J AU - Wilson, J K AU - Hayne, P O AU - Izenberg, N R AU - Schwadron, N A AU - Spence, H E AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1272 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832649558?accountid=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=Dielectric+breakdown+wethering+of+lunar+regolith&rft.au=Jordan%2C+A+P%3BStubbs%2C+T+J%3BWilson%2C+J+K%3BHayne%2C+P+O%3BIzenberg%2C+N+R%3BSchwadron%2C+N+A%3BSpence%2C+H+E%3BAnonymous&rft.aulast=Jordan&rft.aufirst=A&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The importance of meteoritic influx on neutrals in the lunr exosphere AN - 1832649531; 777377-27 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Szalay, J R AU - Horanyi, M AU - Colaprete, A AU - Sarantos, M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 2853 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832649531?accountid=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=The+importance+of+meteoritic+influx+on+neutrals+in+the+lunr+exosphere&rft.au=Szalay%2C+J+R%3BHoranyi%2C+M%3BColaprete%2C+A%3BSarantos%2C+M%3BAnonymous&rft.aulast=Szalay&rft.aufirst=J&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Mini-RF/AO bistatic observations of the floor of Cabeus Crater on their implications for the presence of water ice AN - 1832649393; 776759-95 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Patterson, G Wes AU - Stickle, A M AU - Turner, F S AU - Jensen, J R AU - Bussey, D B J AU - Spudis, P AU - Espiritu, R C AU - Schulze, R C AU - Yocky, D A AU - Wahl, D E AU - Zimmerman, M AU - Cahill, J T S AU - Nolan, M AU - Carter, L AU - Neish, C D AU - Raney, R K AU - Thomson, B J AU - Kirk, R AU - Thompson, T W AU - Tise, B L AU - Erteza, I A AU - Jakowatz, C V AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2320 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832649393?accountid=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=Mini-RF%2FAO+bistatic+observations+of+the+floor+of+Cabeus+Crater+on+their+implications+for+the+presence+of+water+ice&rft.au=Patterson%2C+G+Wes%3BStickle%2C+A+M%3BTurner%2C+F+S%3BJensen%2C+J+R%3BBussey%2C+D+B+J%3BSpudis%2C+P%3BEspiritu%2C+R+C%3BSchulze%2C+R+C%3BYocky%2C+D+A%3BWahl%2C+D+E%3BZimmerman%2C+M%3BCahill%2C+J+T+S%3BNolan%2C+M%3BCarter%2C+L%3BNeish%2C+C+D%3BRaney%2C+R+K%3BThomson%2C+B+J%3BKirk%2C+R%3BThompson%2C+T+W%3BTise%2C+B+L%3BErteza%2C+I+A%3BJakowatz%2C+C+V%3BAnonymous&rft.aulast=Patterson&rft.aufirst=G&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Evolution of shock melt compositons in lunar regoliths AN - 1832649374; 777376-105 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Vance, A M AU - Christoffersen, R AU - Keller, L P AU - Berger, E L AU - Noble, S K AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2852 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832649374?accountid=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=Evolution+of+shock+melt+compositons+in+lunar+regoliths&rft.au=Vance%2C+A+M%3BChristoffersen%2C+R%3BKeller%2C+L+P%3BBerger%2C+E+L%3BNoble%2C+S+K%3BAnonymous&rft.aulast=Vance&rft.aufirst=A&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Chemistry and minealogy in situ at the Bagnold Sand Dunes; evidence for aeolian sorting and size-dependence in sand composition AN - 1832649269; 776759-44 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Ehlmann, B L AU - Bridges, N AU - Fraeman, A A AU - Lapotre, M G A AU - Edgett, K AU - Johnson, J R AU - Cousin, A AU - Yen, A AU - Conrad, P AU - Thompson, L AU - Van Beek, J AU - Vaniman, D AU - Schroeder, S AU - Vasavada, A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1536 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832649269?accountid=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=Chemistry+and+minealogy+in+situ+at+the+Bagnold+Sand+Dunes%3B+evidence+for+aeolian+sorting+and+size-dependence+in+sand+composition&rft.au=Ehlmann%2C+B+L%3BBridges%2C+N%3BFraeman%2C+A+A%3BLapotre%2C+M+G+A%3BEdgett%2C+K%3BJohnson%2C+J+R%3BCousin%2C+A%3BYen%2C+A%3BConrad%2C+P%3BThompson%2C+L%3BVan+Beek%2C+J%3BVaniman%2C+D%3BSchroeder%2C+S%3BVasavada%2C+A%3BAnonymous&rft.aulast=Ehlmann&rft.aufirst=B&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Potential sources of artifacts and backgrounds generated by the sample preparation of sam AN - 1832649102; 777372-96 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Buch, A AU - Belmahdi, I AU - Szopa, C AU - Freissinet, C AU - Glavin, D AU - Coll, P AU - Cabane, M AU - Millan, M AU - Eigenbrode, J AU - Navarro-Gonzalez, R AU - Stern, J C AU - Pinnick, V AU - Coscia, D AU - Teinturier, S AU - Morisson, M AU - Stambouli, M AU - Dequaire, T AU - Mahaffy, P AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1952 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832649102?accountid=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=Potential+sources+of+artifacts+and+backgrounds+generated+by+the+sample+preparation+of+sam&rft.au=Buch%2C+A%3BBelmahdi%2C+I%3BSzopa%2C+C%3BFreissinet%2C+C%3BGlavin%2C+D%3BColl%2C+P%3BCabane%2C+M%3BMillan%2C+M%3BEigenbrode%2C+J%3BNavarro-Gonzalez%2C+R%3BStern%2C+J+C%3BPinnick%2C+V%3BCoscia%2C+D%3BTeinturier%2C+S%3BMorisson%2C+M%3BStambouli%2C+M%3BDequaire%2C+T%3BMahaffy%2C+P%3BAnonymous&rft.aulast=Buch&rft.aufirst=A&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Feldspathic meteorites Miller Range 090034 and 090070; late additions to the lunar crust AN - 1832648272; 777376-102 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nyquist, L E AU - Shirai, N AU - Yamaguchi, A AU - Shih, C-Y AU - Park, J AU - Ebihara, M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1521 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832648272?accountid=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=Feldspathic+meteorites+Miller+Range+090034+and+090070%3B+late+additions+to+the+lunar+crust&rft.au=Nyquist%2C+L+E%3BShirai%2C+N%3BYamaguchi%2C+A%3BShih%2C+C-Y%3BPark%2C+J%3BEbihara%2C+M%3BAnonymous&rft.aulast=Nyquist&rft.aufirst=L&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Weathering effects of dielectric breakdown in the lunar polar regions AN - 1832648260; 777376-88 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Shusterman, Morgan L AU - Izenberg, Noam R AU - Hibbitts, Charles A AU - Jordan, Andrew P AU - Stubbs, Tim J AU - Wilson, Jody K AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2263 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832648260?accountid=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=Weathering+effects+of+dielectric+breakdown+in+the+lunar+polar+regions&rft.au=Shusterman%2C+Morgan+L%3BIzenberg%2C+Noam+R%3BHibbitts%2C+Charles+A%3BJordan%2C+Andrew+P%3BStubbs%2C+Tim+J%3BWilson%2C+Jody+K%3BAnonymous&rft.aulast=Shusterman&rft.aufirst=Morgan&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Scientific highlights from the Maven Mission to Mars AN - 1832648208; 776760-15 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lillis, R J AU - Jakosky, B M AU - Luhmann, J G AU - Grebowsky, J AU - Brain, D A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1170 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832648208?accountid=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=Scientific+highlights+from+the+Maven+Mission+to+Mars&rft.au=Lillis%2C+R+J%3BJakosky%2C+B+M%3BLuhmann%2C+J+G%3BGrebowsky%2C+J%3BBrain%2C+D+A%3BAnonymous&rft.aulast=Lillis&rft.aufirst=R&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Coordinated isotopic and mineral characterization of highly fractionated (super 18) O-rich silicates in the queen alexandria range 99177 CR3 chondrite AN - 1832647823; 776759-57 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nguyen, A N AU - Keller, L P AU - Messenger, S AU - Rahman, Z AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2941 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832647823?accountid=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=Coordinated+isotopic+and+mineral+characterization+of+highly+fractionated+%28super+18%29+O-rich+silicates+in+the+queen+alexandria+range+99177+CR3+chondrite&rft.au=Nguyen%2C+A+N%3BKeller%2C+L+P%3BMessenger%2C+S%3BRahman%2C+Z%3BAnonymous&rft.aulast=Nguyen&rft.aufirst=A&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Constraints on the origin of a type B CAI from the Vigarano CV3red chondrite AN - 1832647746; 782756-40 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Han, J AU - Keller, L P AU - Needham, A W AU - Messenger, S AU - Simon, Justin I AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 1040 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832647746?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Constraints+on+the+origin+of+a+type+B+CAI+from+the+Vigarano+CV3red+chondrite&rft.au=Han%2C+J%3BKeller%2C+L+P%3BNeedham%2C+A+W%3BMessenger%2C+S%3BSimon%2C+Justin+I%3BAnonymous&rft.aulast=Han&rft.aufirst=J&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=1040&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/1040.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Carbon solubility in Si-Fe-bearing metals during core formation on Mercury AN - 1832647523; 776759-73 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Kaaden, Kathleen E Vander AU - McCubbin, Francis M AU - Ross, D Kent AU - Rapp, Jennifer F AU - Danielson, Lisa R AU - Keller, Lindsay P AU - Righter, Kevin AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1474 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832647523?accountid=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=Carbon+solubility+in+Si-Fe-bearing+metals+during+core+formation+on+Mercury&rft.au=Kaaden%2C+Kathleen+E+Vander%3BMcCubbin%2C+Francis+M%3BRoss%2C+D+Kent%3BRapp%2C+Jennifer+F%3BDanielson%2C+Lisa+R%3BKeller%2C+Lindsay+P%3BRighter%2C+Kevin%3BAnonymous&rft.aulast=Kaaden&rft.aufirst=Kathleen+E&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Controlling oblique Apollo 15 metric camera images; final results AN - 1832646995; 777377-50 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Edmundson, K L AU - Alexandrov, O AU - Archinal, B A AU - Becker, K J AU - Becker, T L AU - Moratto, Z M AU - Nefian, A V AU - Richie, J O AU - Robinson, M S AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 1376 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832646995?accountid=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=Controlling+oblique+Apollo+15+metric+camera+images%3B+final+results&rft.au=Edmundson%2C+K+L%3BAlexandrov%2C+O%3BArchinal%2C+B+A%3BBecker%2C+K+J%3BBecker%2C+T+L%3BMoratto%2C+Z+M%3BNefian%2C+A+V%3BRichie%2C+J+O%3BRobinson%2C+M+S%3BAnonymous&rft.aulast=Edmundson&rft.aufirst=K&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Initial determintion of the zenith angle dependence of the martian radiation envornment at Gale Crater altitudes AN - 1832646854; 777372-104 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Wimmer-Schweingruber, R F AU - Koehler, J AU - Hassler, Donald M AU - Guo, J AU - Appel, J AU - Zeitlin, C AU - Boehm, E AU - Ehresmann, B AU - Lohf, H AU - Boettcher, S I AU - Burmeister, S AU - Martin, C AU - Kharytonov, A AU - Brinza, D E AU - Posner, A AU - Reitz, G AU - Matthiae, D AU - Rafkin, S AU - Weigle, G AU - Cucinotta, F AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1151 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832646854?accountid=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=Initial+determintion+of+the+zenith+angle+dependence+of+the+martian+radiation+envornment+at+Gale+Crater+altitudes&rft.au=Wimmer-Schweingruber%2C+R+F%3BKoehler%2C+J%3BHassler%2C+Donald+M%3BGuo%2C+J%3BAppel%2C+J%3BZeitlin%2C+C%3BBoehm%2C+E%3BEhresmann%2C+B%3BLohf%2C+H%3BBoettcher%2C+S+I%3BBurmeister%2C+S%3BMartin%2C+C%3BKharytonov%2C+A%3BBrinza%2C+D+E%3BPosner%2C+A%3BReitz%2C+G%3BMatthiae%2C+D%3BRafkin%2C+S%3BWeigle%2C+G%3BCucinotta%2C+F%3BAnonymous&rft.aulast=Wimmer-Schweingruber&rft.aufirst=R&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Advancing Venus atmospheric modeling via coordinated HST-Akatsuki observations AN - 1832646610; 777376-92 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Jessup, K L AU - Imamura, T AU - Nakamura, M AU - Mills, F AU - Marcq, E AU - Limaye, S AU - Wilson, C AU - Bertaux, J L AU - Young, E AU - Kremic, T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1818 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832646610?accountid=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=Advancing+Venus+atmospheric+modeling+via+coordinated+HST-Akatsuki+observations&rft.au=Jessup%2C+K+L%3BImamura%2C+T%3BNakamura%2C+M%3BMills%2C+F%3BMarcq%2C+E%3BLimaye%2C+S%3BWilson%2C+C%3BBertaux%2C+J+L%3BYoung%2C+E%3BKremic%2C+T%3BAnonymous&rft.aulast=Jessup&rft.aufirst=K&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The extraction, amplification and sequencing of DNA from ordinary chondrites and the Allende CV chondrite - of course its terrestrial but how did it get there? AN - 1832646594; 777372-85 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Steele, A AU - Starke, V AU - Fries, M AU - Glamoclija, M AU - Needham, A AU - Welzenbach, L AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2597 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832646594?accountid=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=The+extraction%2C+amplification+and+sequencing+of+DNA+from+ordinary+chondrites+and+the+Allende+CV+chondrite+-+of+course+its+terrestrial+but+how+did+it+get+there%3F&rft.au=Steele%2C+A%3BStarke%2C+V%3BFries%2C+M%3BGlamoclija%2C+M%3BNeedham%2C+A%3BWelzenbach%2C+L%3BAnonymous&rft.aulast=Steele&rft.aufirst=A&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Identifying and characterizing impact melt outcrops in the Nectaris Basin AN - 1832646485; 777376-82 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cohen, Barbara A AU - Lawrence, S J AU - Petro, N E AU - Bart, G D AU - Clegg-Watkins, R N AU - Denevi, B W AU - Ghent, R R AU - Klima, R L AU - Morgan, G A AU - Spudis, P D AU - Stopar, J D AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1389 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832646485?accountid=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=Identifying+and+characterizing+impact+melt+outcrops+in+the+Nectaris+Basin&rft.au=Cohen%2C+Barbara+A%3BLawrence%2C+S+J%3BPetro%2C+N+E%3BBart%2C+G+D%3BClegg-Watkins%2C+R+N%3BDenevi%2C+B+W%3BGhent%2C+R+R%3BKlima%2C+R+L%3BMorgan%2C+G+A%3BSpudis%2C+P+D%3BStopar%2C+J+D%3BAnonymous&rft.aulast=Cohen&rft.aufirst=Barbara&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Evaluation of Ceres' compensation stte. AN - 1832646418; 776760-51 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Ermakov, Anton I AU - Zuber, maria T AU - Smith, David E AU - Fu, Roger R AU - Raymond, Carol A AU - Park, Ryan S AU - Russell, Christopher T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1708 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832646418?accountid=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=Evaluation+of+Ceres%27+compensation+stte.&rft.au=Ermakov%2C+Anton+I%3BZuber%2C+maria+T%3BSmith%2C+David+E%3BFu%2C+Roger+R%3BRaymond%2C+Carol+A%3BPark%2C+Ryan+S%3BRussell%2C+Christopher+T%3BAnonymous&rft.aulast=Ermakov&rft.aufirst=Anton&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Seasonal variaton of the martian polar CO (sub 2) caps in GCM predictions and Mars odyssey neutron spectrometer data AN - 1832646286; 776760-48 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Wilson, J T AU - Eke, V R AU - Massey, R J AU - Elphic, R C AU - Feldman, W C AU - Maurice, S AU - Teodoro, L F A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2908 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832646286?accountid=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=Seasonal+variaton+of+the+martian+polar+CO+%28sub+2%29+caps+in+GCM+predictions+and+Mars+odyssey+neutron+spectrometer+data&rft.au=Wilson%2C+J+T%3BEke%2C+V+R%3BMassey%2C+R+J%3BElphic%2C+R+C%3BFeldman%2C+W+C%3BMaurice%2C+S%3BTeodoro%2C+L+F+A%3BAnonymous&rft.aulast=Wilson&rft.aufirst=J&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Larkman Nunatak 06507 - insights into the impact melting of carbonaceous chondrites AN - 1832645845; 777373-3 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Schmieder, Martin AU - Shaulis, Barry J AU - Kring, David A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1646 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832645845?accountid=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=Larkman+Nunatak+06507+-+insights+into+the+impact+melting+of+carbonaceous+chondrites&rft.au=Schmieder%2C+Martin%3BShaulis%2C+Barry+J%3BKring%2C+David+A%3BAnonymous&rft.aulast=Schmieder&rft.aufirst=Martin&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - (super 40) Ar- (super 39) AR age of an impact-melt lithology in Dhofar 961 AN - 1832645725; 777376-23 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cohen, Barbara A AU - Frasl, B AU - Jolliff, B L AU - Korotev, R L AU - Zeigler, R A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2007 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832645725?accountid=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=%28super+40%29+Ar-+%28super+39%29+AR+age+of+an+impact-melt+lithology+in+Dhofar+961&rft.au=Cohen%2C+Barbara+A%3BFrasl%2C+B%3BJolliff%2C+B+L%3BKorotev%2C+R+L%3BZeigler%2C+R+A%3BAnonymous&rft.aulast=Cohen&rft.aufirst=Barbara&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Restoration of Apollo data by the lunar data project/PDS lunar data node; an update AN - 1832645616; 777377-33 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Williams, David R AU - Hills, H Kent AU - Taylor, Patrick T AU - Grayzeck, Edwin J AU - Guinness, Edward A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 2385 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832645616?accountid=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=Restoration+of+Apollo+data+by+the+lunar+data+project%2FPDS+lunar+data+node%3B+an+update&rft.au=Williams%2C+David+R%3BHills%2C+H+Kent%3BTaylor%2C+Patrick+T%3BGrayzeck%2C+Edwin+J%3BGuinness%2C+Edward+A%3BAnonymous&rft.aulast=Williams&rft.aufirst=David&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Venus bulk elemental composition measurement with ping AN - 1832645153; 777376-98 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Parsons, A M AU - Grau, J AU - McClanahan, T P AU - Miles, J AU - Perkins, L AU - Schweitzer, J S AU - Starr, R D AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2448 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832645153?accountid=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=Venus+bulk+elemental+composition+measurement+with+ping&rft.au=Parsons%2C+A+M%3BGrau%2C+J%3BMcClanahan%2C+T+P%3BMiles%2C+J%3BPerkins%2C+L%3BSchweitzer%2C+J+S%3BStarr%2C+R+D%3BAnonymous&rft.aulast=Parsons&rft.aufirst=A&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Martian methane form a cometary source; a hypothesis AN - 1832644689; 776760-54 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Fries, M AU - Christou, A AU - Archer, D AU - Conrad, P AU - Cooke, W AU - Eigenbrode, J AU - ten Kate, I L AU - Matney, M AU - Niles, P AU - Sykes, M AU - Steele, A AU - Treiman, A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2932 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832644689?accountid=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=Martian+methane+form+a+cometary+source%3B+a+hypothesis&rft.au=Fries%2C+M%3BChristou%2C+A%3BArcher%2C+D%3BConrad%2C+P%3BCooke%2C+W%3BEigenbrode%2C+J%3Bten+Kate%2C+I+L%3BMatney%2C+M%3BNiles%2C+P%3BSykes%2C+M%3BSteele%2C+A%3BTreiman%2C+A%3BAnonymous&rft.aulast=Fries&rft.aufirst=M&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Radioisotope source modeling for the Map-X mu XRF imaging instrument AN - 1832644670; 777378-61 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Thompson, K A AU - Blake, David F AU - Sarrazin, P AU - Bristow, T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 1829 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832644670?accountid=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=Radioisotope+source+modeling+for+the+Map-X+mu+XRF+imaging+instrument&rft.au=Thompson%2C+K+A%3BBlake%2C+David+F%3BSarrazin%2C+P%3BBristow%2C+T%3BAnonymous&rft.aulast=Thompson&rft.aufirst=K&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Organic analysis in miller range 090657 and Buckley Island 10933 CR2 chondrites; Part 1 in-situ observation of carbonaceous material AN - 1832644666; 777373-16 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cao, T AU - Nakamura-Messenger, K AU - Berger, e L AU - Burton, A S AU - Messenger, S AU - Clemett, S J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2427 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832644666?accountid=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=Organic+analysis+in+miller+range+090657+and+Buckley+Island+10933+CR2+chondrites%3B+Part+1+in-situ+observation+of+carbonaceous+material&rft.au=Cao%2C+T%3BNakamura-Messenger%2C+K%3BBerger%2C+e+L%3BBurton%2C+A+S%3BMessenger%2C+S%3BClemett%2C+S+J%3BAnonymous&rft.aulast=Cao&rft.aufirst=T&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Characterizing the mechanisms for the preservation of organics at the painted desert; lessons for MSL, exomars, and Mars 2020 AN - 1832644474; 777372-98 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Dobrea, E Z Noe AU - McAdma, A C AU - Freissinet, C AU - Franz, H AU - Belmahdi, I AU - Hamersley, M R AU - Stoker, C R AU - Parker, B AU - Kim, K Ja AU - Glavin, D P AU - Calef, F AU - Aubrey, A D AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2796 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832644474?accountid=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=Characterizing+the+mechanisms+for+the+preservation+of+organics+at+the+painted+desert%3B+lessons+for+MSL%2C+exomars%2C+and+Mars+2020&rft.au=Dobrea%2C+E+Z+Noe%3BMcAdma%2C+A+C%3BFreissinet%2C+C%3BFranz%2C+H%3BBelmahdi%2C+I%3BHamersley%2C+M+R%3BStoker%2C+C+R%3BParker%2C+B%3BKim%2C+K+Ja%3BGlavin%2C+D+P%3BCalef%2C+F%3BAubrey%2C+A+D%3BAnonymous&rft.aulast=Dobrea&rft.aufirst=E+Z&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Photoclinometric reconstruction of the Apollo metric camera imagery AN - 1832644443; 777377-51 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nefian, Ara V AU - Wong, Uland AU - Alexandrov, Oleg AU - Kirk, Randy AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 2706 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832644443?accountid=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=Photoclinometric+reconstruction+of+the+Apollo+metric+camera+imagery&rft.au=Nefian%2C+Ara+V%3BWong%2C+Uland%3BAlexandrov%2C+Oleg%3BKirk%2C+Randy%3BAnonymous&rft.aulast=Nefian&rft.aufirst=Ara&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Evidence for possible low-density regolith at the lunar poles AN - 1832644054; 777379-12 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Thomson, B J AU - Spudis, P D AU - Hayne, P O AU - Cahill, J T S AU - Patterson, G W AU - Neish, C D AU - Thompson, T W AU - Heggy, E AU - Stickle, A M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstractno 2426 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832644054?accountid=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=Evidence+for+possible+low-density+regolith+at+the+lunar+poles&rft.au=Thomson%2C+B+J%3BSpudis%2C+P+D%3BHayne%2C+P+O%3BCahill%2C+J+T+S%3BPatterson%2C+G+W%3BNeish%2C+C+D%3BThompson%2C+T+W%3BHeggy%2C+E%3BStickle%2C+A+M%3BAnonymous&rft.aulast=Thomson&rft.aufirst=B&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Implications of Europa's global cycloid population AN - 1832643843; 777379-59 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Mohr, K J AU - Rhoden, A R AU - Hurford, T A AU - Dubois, D AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstractno 2782 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832643843?accountid=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=Implications+of+Europa%27s+global+cycloid+population&rft.au=Mohr%2C+K+J%3BRhoden%2C+A+R%3BHurford%2C+T+A%3BDubois%2C+D%3BAnonymous&rft.aulast=Mohr&rft.aufirst=K&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Continued developmnt of in situ geochronology for planetary using karle (potassium-argon laser experiment) AN - 1832643796; 777378-58 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Devismes, D AU - Cohen, Barbara A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 2046 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832643796?accountid=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=Continued+developmnt+of+in+situ+geochronology+for+planetary+using+karle+%28potassium-argon+laser+experiment%29&rft.au=Devismes%2C+D%3BCohen%2C+Barbara+A%3BAnonymous&rft.aulast=Devismes&rft.aufirst=D&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Mars organic molecule analyzer (MOMA) mass spectrometer flight model integration and test AN - 1832643767; 777378-51 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Pinnick, Veronica T AU - Danell, Rayan M AU - van Amerom, Friso H W AU - Arevalo, Ricardo D, Jr AU - Grubisic, Andrej AU - Li, Xiang AU - Getty, S A AU - Chu, Zhiping AU - Brinckerhoff, William B AU - Mahaffy, Paul R AU - Raulin, Francois AU - Goesmann, Fred AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 2770 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832643767?accountid=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=Mars+organic+molecule+analyzer+%28MOMA%29+mass+spectrometer+flight+model+integration+and+test&rft.au=Pinnick%2C+Veronica+T%3BDanell%2C+Rayan+M%3Bvan+Amerom%2C+Friso+H+W%3BArevalo%2C+Ricardo+D%2C+Jr%3BGrubisic%2C+Andrej%3BLi%2C+Xiang%3BGetty%2C+S+A%3BChu%2C+Zhiping%3BBrinckerhoff%2C+William+B%3BMahaffy%2C+Paul+R%3BRaulin%2C+Francois%3BGoesmann%2C+Fred%3BAnonymous&rft.aulast=Pinnick&rft.aufirst=Veronica&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Planetary science capabilities at national synchtrotron lgiht source-11, Brookhaven National Laboratory AN - 1832643746; 777372-94 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Schoonen, M AU - Hill, J AU - Thieme, J AU - Chu, Y AU - Tappero, R AU - Northrup, P AU - Flynn, G J AU - Keller, L AU - Chen-Wiegart, K AU - Li, L AU - Nazaretski, E AU - Williams, G AU - Wirick, S AU - Yan, H AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2951 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832643746?accountid=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=Planetary+science+capabilities+at+national+synchtrotron+lgiht+source-11%2C+Brookhaven+National+Laboratory&rft.au=Schoonen%2C+M%3BHill%2C+J%3BThieme%2C+J%3BChu%2C+Y%3BTappero%2C+R%3BNorthrup%2C+P%3BFlynn%2C+G+J%3BKeller%2C+L%3BChen-Wiegart%2C+K%3BLi%2C+L%3BNazaretski%2C+E%3BWilliams%2C+G%3BWirick%2C+S%3BYan%2C+H%3BAnonymous&rft.aulast=Schoonen&rft.aufirst=M&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Water of the Canadian Cordillera and Slave craton lithospheric mantle AN - 1832643657; 782755-16 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Gelber, M L AU - Peslier, A H AU - Brandon, A D AU - Kopylova, M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 916 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832643657?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Water+of+the+Canadian+Cordillera+and+Slave+craton+lithospheric+mantle&rft.au=Gelber%2C+M+L%3BPeslier%2C+A+H%3BBrandon%2C+A+D%3BKopylova%2C+M%3BAnonymous&rft.aulast=Gelber&rft.aufirst=M&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=916&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/916.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - the investigation of chlorate/iron-phase mixtures as a possible source of oxygen and chlorine detected by the sample analysis at Mars (SAM0 instrument in Gale Crater, Mars AN - 1832643393; 777378-2 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Clark, J AU - Sutter, B AU - Morris, R V AU - Archer, P D AU - Ming, D W AU - Niles, P AU - Mahaffy, P AU - Navarro-Gonzalez, R AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 1537 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832643393?accountid=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=the+investigation+of+chlorate%2Firon-phase+mixtures+as+a+possible+source+of+oxygen+and+chlorine+detected+by+the+sample+analysis+at+Mars+%28SAM0+instrument+in+Gale+Crater%2C+Mars&rft.au=Clark%2C+J%3BSutter%2C+B%3BMorris%2C+R+V%3BArcher%2C+P+D%3BMing%2C+D+W%3BNiles%2C+P%3BMahaffy%2C+P%3BNavarro-Gonzalez%2C+R%3BAnonymous&rft.aulast=Clark&rft.aufirst=J&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Remote raman detection of natural rocks AN - 1832643339; 777378-44 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Berlanga, Genesis AU - Misra, A K AU - Acosta-Maeda, T AU - Sharma, S K AU - Clegg, S M AU - Wiens, R C AU - Abedin, M N AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 2895 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832643339?accountid=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=Remote+raman+detection+of+natural+rocks&rft.au=Berlanga%2C+Genesis%3BMisra%2C+A+K%3BAcosta-Maeda%2C+T%3BSharma%2C+S+K%3BClegg%2C+S+M%3BWiens%2C+R+C%3BAbedin%2C+M+N%3BAnonymous&rft.aulast=Berlanga&rft.aufirst=Genesis&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Aminiature electron probe for in situ elemental microanalysis AN - 1832643120; 777378-66 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lim, Lucy F AU - Southard, Adrian E AU - Getty, Stephanie A AU - Hess, Larry A AU - Hagopian, John G AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 1701 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832643120?accountid=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=Aminiature+electron+probe+for+in+situ+elemental+microanalysis&rft.au=Lim%2C+Lucy+F%3BSouthard%2C+Adrian+E%3BGetty%2C+Stephanie+A%3BHess%2C+Larry+A%3BHagopian%2C+John+G%3BAnonymous&rft.aulast=Lim&rft.aufirst=Lucy&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Dirt-to-data integrated drilling tests at Rio tinto AN - 1832643068; 777378-69 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Glass, B AU - Bergman, D AU - Yaggi, B AU - Dave, A AU - Parro, V AU - Stoker, C AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 2656 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832643068?accountid=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=Dirt-to-data+integrated+drilling+tests+at+Rio+tinto&rft.au=Glass%2C+B%3BBergman%2C+D%3BYaggi%2C+B%3BDave%2C+A%3BParro%2C+V%3BStoker%2C+C%3BAnonymous&rft.aulast=Glass&rft.aufirst=B&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Venus gavity gradiometry; plateaus, chasmata, coronae, and the need for a better global dataset AN - 1832642942; 777376-89 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Andrews-Hanna, J C AU - Smrekar, S E AU - Mazarico, E AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2907 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832642942?accountid=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=Venus+gavity+gradiometry%3B+plateaus%2C+chasmata%2C+coronae%2C+and+the+need+for+a+better+global+dataset&rft.au=Andrews-Hanna%2C+J+C%3BSmrekar%2C+S+E%3BMazarico%2C+E%3BAnonymous&rft.aulast=Andrews-Hanna&rft.aufirst=J&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Petrology and distribution of U-Pb ages in lunar meteorite breccia Miller (MIl) 13317 AN - 1832642621; 777376-73 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Shaulis, Barry J AU - Kring, David A AU - Lapen, Thomas J AU - Righter, Minako AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2027 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832642621?accountid=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=Petrology+and+distribution+of+U-Pb+ages+in+lunar+meteorite+breccia+Miller+%28MIl%29+13317&rft.au=Shaulis%2C+Barry+J%3BKring%2C+David+A%3BLapen%2C+Thomas+J%3BRighter%2C+Minako%3BAnonymous&rft.aulast=Shaulis&rft.aufirst=Barry&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Concise method for isotope analysis of oxygen in phosphate: A new inorganic biomarker AN - 1832637430; 782758-35 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Iida, H AU - Yamaguchi, K E AU - Wang, X AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 1235 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832637430?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Concise+method+for+isotope+analysis+of+oxygen+in+phosphate%3A+A+new+inorganic+biomarker&rft.au=Iida%2C+H%3BYamaguchi%2C+K+E%3BWang%2C+X%3BAnonymous&rft.aulast=Iida&rft.aufirst=H&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=1235&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/1235.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - Space weathering of olivine: Samples, experiments and modeling AN - 1832634564; 782760-73 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Keller, L P AU - Berger, E L AU - Christoffersen, S AU - Christoffersen, R AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 1473 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832634564?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Space+weathering+of+olivine%3A+Samples%2C+experiments+and+modeling&rft.au=Keller%2C+L+P%3BBerger%2C+E+L%3BChristoffersen%2C+S%3BChristoffersen%2C+R%3BAnonymous&rft.aulast=Keller&rft.aufirst=L&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=1473&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/1473.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - High sensitivity of northern hemisphere tropospheric oxidants to major climate transitions AN - 1832633639; 782755-18 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Geng, Lei AU - Murray, Lee T AU - Mickley, Loretta J AU - Lin, Pu AU - Fu, Qiang AU - Schauer, Andrew J AU - Alexander, Becky AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 918 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832633639?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=High+sensitivity+of+northern+hemisphere+tropospheric+oxidants+to+major+climate+transitions&rft.au=Geng%2C+Lei%3BMurray%2C+Lee+T%3BMickley%2C+Loretta+J%3BLin%2C+Pu%3BFu%2C+Qiang%3BSchauer%2C+Andrew+J%3BAlexander%2C+Becky%3BAnonymous&rft.aulast=Geng&rft.aufirst=Lei&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=918&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/918.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Geologic maping of the Ac-H-6 quadrangle of ceres form NASA's Dawn Mission; changes in composition AN - 1832625408; 776757-99 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Krohn, Katrin AU - Jaumann, R AU - Tosi, F AU - Nass, A AU - Otto, K A AU - Schulzeck, F AU - Stephan, K AU - Wagner, R J AU - Williams, D A AU - Buczkowski, D L AU - Mest, S C AU - Scully, J E C AU - von der Gathen, I AU - Kersten, E AU - Matz, K-D AU - Pieters, C M AU - Preusker, F AU - Roatsch, T AU - De Sanctis, M C AU - Zambon, F AU - Russell, C T AU - Raymond, C A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1977 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832625408?accountid=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=Geologic+maping+of+the+Ac-H-6+quadrangle+of+ceres+form+NASA%27s+Dawn+Mission%3B+changes+in+composition&rft.au=Krohn%2C+Katrin%3BJaumann%2C+R%3BTosi%2C+F%3BNass%2C+A%3BOtto%2C+K+A%3BSchulzeck%2C+F%3BStephan%2C+K%3BWagner%2C+R+J%3BWilliams%2C+D+A%3BBuczkowski%2C+D+L%3BMest%2C+S+C%3BScully%2C+J+E+C%3Bvon+der+Gathen%2C+I%3BKersten%2C+E%3BMatz%2C+K-D%3BPieters%2C+C+M%3BPreusker%2C+F%3BRoatsch%2C+T%3BDe+Sanctis%2C+M+C%3BZambon%2C+F%3BRussell%2C+C+T%3BRaymond%2C+C+A%3BAnonymous&rft.aulast=Krohn&rft.aufirst=Katrin&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Geologic mapping of the Ac-H-3 Dantu Quadrangle of ceres from NASA's Dawn Mission AN - 1832625326; 776757-94 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Kneissl, T AU - Schmedemann, N AU - Neesemann, A AU - Williams, D A AU - Crown, D A AU - Mest, S C AU - Buczkowski, D L AU - Scully, J E C AU - Frigeri, A AU - Ruesch, O AU - Hiesinger, H AU - Walter, S H G AU - Jaumann, R AU - Roatsch, T AU - Preusker, F AU - Kersten, E AU - Nass, A AU - Nathues, A AU - Platz, T AU - Hoffmann, M AU - Schaefer, M AU - De Sanctis, M C AU - Raymond, C A AU - Russell, C T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1967 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832625326?accountid=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=Geologic+mapping+of+the+Ac-H-3+Dantu+Quadrangle+of+ceres+from+NASA%27s+Dawn+Mission&rft.au=Kneissl%2C+T%3BSchmedemann%2C+N%3BNeesemann%2C+A%3BWilliams%2C+D+A%3BCrown%2C+D+A%3BMest%2C+S+C%3BBuczkowski%2C+D+L%3BScully%2C+J+E+C%3BFrigeri%2C+A%3BRuesch%2C+O%3BHiesinger%2C+H%3BWalter%2C+S+H+G%3BJaumann%2C+R%3BRoatsch%2C+T%3BPreusker%2C+F%3BKersten%2C+E%3BNass%2C+A%3BNathues%2C+A%3BPlatz%2C+T%3BHoffmann%2C+M%3BSchaefer%2C+M%3BDe+Sanctis%2C+M+C%3BRaymond%2C+C+A%3BRussell%2C+C+T%3BAnonymous&rft.aulast=Kneissl&rft.aufirst=T&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Discovery of silica-rich lacustrine and Eolian sedimentary rocks in Gale Crater, Mars AN - 1832625031; 776758-57 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Frydenvang, J AU - Gasda, P J AU - Hurowitz, J A AU - Grotzinger, J P AU - Wiens, R C AU - Newsom, H E AU - Bridges, J AU - Gasnault, O AU - Maurice, S AU - Fisk, M AU - Ehlmann, B AU - Watkins, J AU - Stein, N AU - Forni, O AU - Mangold, N AU - Cousin, A AU - Clegg, S M AU - Anderson, R B AU - Payre, V AU - Rapin, W AU - Vaniman, D AU - Morris, R V AU - Blake, D AU - Gupta, S AU - Sautter, V AU - Meslin, P-Y AU - Edwards, P AU - Rice, M AU - Kinch, K M AU - Milliken, R AU - Gellert, R AU - Thompson, L AU - Clark, B C AU - Edgett, K S AU - Sumner, D AU - Fraeman, A AU - Madsen, M B AU - Mitrofanov, I AU - Jun, I AU - Calef, F AU - Vasavada, A R AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2349 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832625031?accountid=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=Discovery+of+silica-rich+lacustrine+and+Eolian+sedimentary+rocks+in+Gale+Crater%2C+Mars&rft.au=Frydenvang%2C+J%3BGasda%2C+P+J%3BHurowitz%2C+J+A%3BGrotzinger%2C+J+P%3BWiens%2C+R+C%3BNewsom%2C+H+E%3BBridges%2C+J%3BGasnault%2C+O%3BMaurice%2C+S%3BFisk%2C+M%3BEhlmann%2C+B%3BWatkins%2C+J%3BStein%2C+N%3BForni%2C+O%3BMangold%2C+N%3BCousin%2C+A%3BClegg%2C+S+M%3BAnderson%2C+R+B%3BPayre%2C+V%3BRapin%2C+W%3BVaniman%2C+D%3BMorris%2C+R+V%3BBlake%2C+D%3BGupta%2C+S%3BSautter%2C+V%3BMeslin%2C+P-Y%3BEdwards%2C+P%3BRice%2C+M%3BKinch%2C+K+M%3BMilliken%2C+R%3BGellert%2C+R%3BThompson%2C+L%3BClark%2C+B+C%3BEdgett%2C+K+S%3BSumner%2C+D%3BFraeman%2C+A%3BMadsen%2C+M+B%3BMitrofanov%2C+I%3BJun%2C+I%3BCalef%2C+F%3BVasavada%2C+A+R%3BAnonymous&rft.aulast=Frydenvang&rft.aufirst=J&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Craters on Pluto and charon - surface ages and impactor populations AN - 1832624925; 776758-66 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Singer, K N AU - McKinnon, W B AU - Robbins, S J AU - Schenk, P M AU - Greenstreet, S AU - Gladman, B AU - Parker, A H AU - Stern, S A AU - Bray, V J AU - Weaver, H A AU - Beyer, R A AU - Young, L A AU - Spencer, J R AU - Moore, J M AU - Olkin, C B AU - Ennico, K AU - Binzel, R P AU - Grundy, W M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2310 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832624925?accountid=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=Craters+on+Pluto+and+charon+-+surface+ages+and+impactor+populations&rft.au=Singer%2C+K+N%3BMcKinnon%2C+W+B%3BRobbins%2C+S+J%3BSchenk%2C+P+M%3BGreenstreet%2C+S%3BGladman%2C+B%3BParker%2C+A+H%3BStern%2C+S+A%3BBray%2C+V+J%3BWeaver%2C+H+A%3BBeyer%2C+R+A%3BYoung%2C+L+A%3BSpencer%2C+J+R%3BMoore%2C+J+M%3BOlkin%2C+C+B%3BEnnico%2C+K%3BBinzel%2C+R+P%3BGrundy%2C+W+M%3BAnonymous&rft.aulast=Singer&rft.aufirst=K&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Haze layers in Pluto's atmosphere AN - 1832624860; 776758-68 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cheng, Andrew F AU - Summers, M E AU - Gladstone, G R AU - Strobel, D F AU - Young, L A AU - Lavvas, P AU - Kammer, J A AU - Lisse, C M AU - Parker, A H AU - Young, E F AU - Stern, S A AU - Weaver, H A AU - Olkin, C B AU - Ennico, K AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2316 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832624860?accountid=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=Haze+layers+in+Pluto%27s+atmosphere&rft.au=Cheng%2C+Andrew+F%3BSummers%2C+M+E%3BGladstone%2C+G+R%3BStrobel%2C+D+F%3BYoung%2C+L+A%3BLavvas%2C+P%3BKammer%2C+J+A%3BLisse%2C+C+M%3BParker%2C+A+H%3BYoung%2C+E+F%3BStern%2C+S+A%3BWeaver%2C+H+A%3BOlkin%2C+C+B%3BEnnico%2C+K%3BAnonymous&rft.aulast=Cheng&rft.aufirst=Andrew&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Exploring the depth distribution of lunar crustal mass anomalies using grail gravity and lola topography AN - 1832624600; 776759-3 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Zuber, Maria T AU - Smith, David E AU - Goossens, Sander J AU - Neumann, Gregory A AU - Lemoine, Frank G AU - Mazarico, Erwan AU - Genova, Antonio AU - Rowlands, David D AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2105 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832624600?accountid=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=Exploring+the+depth+distribution+of+lunar+crustal+mass+anomalies+using+grail+gravity+and+lola+topography&rft.au=Zuber%2C+Maria+T%3BSmith%2C+David+E%3BGoossens%2C+Sander+J%3BNeumann%2C+Gregory+A%3BLemoine%2C+Frank+G%3BMazarico%2C+Erwan%3BGenova%2C+Antonio%3BRowlands%2C+David+D%3BAnonymous&rft.aulast=Zuber&rft.aufirst=Maria&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - A comparative study of aerosol microphysical properties retrieved from ground-based remote sensing and aircraft in situ measurements during a Saharan dust event AN - 1832621931; 774319-17 AB - In this work we present an analysis of aerosol microphysical properties during a mineral dust event taking advantage of the combination of different state-of-the-art retrieval techniques applied to active and passive remote sensing measurements and the evaluation of some of those techniques using independent data acquired from in situ aircraft measurements. Data were collected in a field campaign performed during a mineral dust outbreak at the Granada, Spain, experimental site (37.16 degrees N, 3.61 degrees W, 680 m a.s.l.) on 27 June 2011. Column-integrated properties are provided by sun- and star-photometry, which allows for a continuous evaluation of the mineral dust optical properties during both day and nighttime. Both the linear estimation and AERONET (Aerosol Robotic Network) inversion algorithms are applied for the retrieval of the column-integrated microphysical particle properties. In addition, vertically resolved microphysical properties are obtained from a multi-wavelength Raman lidar system included in EARLINET (European Aerosol Research Lidar Network), by using both LIRIC (Lidar Radiometer Inversion Code) algorithm during daytime and an algorithm applied to the Raman measurements based on the regularization technique during nighttime. LIRIC retrievals reveal the presence of dust layers between 3 and 5 km a.s.l. with volume concentrations of the coarse spheroid mode up to 60 mu m (super 3) cm (super -3) . The combined use of the regularization and LIRIC methods reveals the night-to-day evolution of the vertical structure of the mineral dust microphysical properties and offers complementary information to that from column-integrated variables retrieved from passive remote sensing. Additionally, lidar depolarization profiles and LIRIC retrieved volume concentration are compared with aircraft in situ measurements. This study presents for the first time a comparison of the total volume concentration retrieved with LIRIC with independent in situ measurements, obtaining agreement within the estimated uncertainties for both methods and quite good agreement for the vertical distribution of the aerosol layers. Regarding the depolarization, the first published data set of the CAS-POL for polarization ratios is presented here and qualitatively compared with the lidar technique. JF - Atmospheric Measurement Techniques (AMT) AU - Granados-Munoz, Maria Jose AU - Bravo-Aranda, Juan Antonio AU - Baumgardner, Darrel AU - Guerrero-Rascado, Juan Luis AU - Perez-Ramirez, Daniel AU - Navas-Guzman, Francisco AU - Veselovskii, Igor AU - Lyamani, Hassan AU - Valenzuela, Antonio AU - Olmo, Francisco Jose AU - Titos, Gloria AU - Andrey, Javier AU - Chaikovsky, Anatoli AU - Dubovik, Oleg AU - Gil-Ojeda, Manuel AU - Alados-Arboledas, Lucas Y1 - 2016 PY - 2016 DA - 2016 SP - 1113 EP - 1133 PB - Copernicus GmbH on behalf of the European Geosciences Union (EGU), Gottingen VL - 9 IS - 3 SN - 1867-1381, 1867-1381 KW - laser methods KW - altitude KW - data processing KW - Europe KW - Iberian Peninsula KW - Granada Spain KW - Southern Europe KW - size distribution KW - photometry KW - Andalusia Spain KW - diurnal variations KW - algorithms KW - in situ KW - time series analysis KW - clastic sediments KW - atmosphere KW - measurement KW - physical properties KW - lidar methods KW - dust KW - aircraft KW - surveys KW - Africa KW - aerosols KW - Sahara KW - data retrieval KW - optical depth KW - particles KW - instruments KW - polarization KW - geophysical surveys KW - Spain KW - Granada City Spain KW - spatial distribution KW - sediments KW - spectra KW - uncertainty KW - concentration KW - ground methods KW - grain size KW - statistical analysis KW - LIRIC KW - Raman spectra KW - optical properties KW - volume KW - backscattering KW - remote sensing KW - airborne methods KW - 06A:Sedimentary petrology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832621931?accountid=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=Atmospheric+Measurement+Techniques+%28AMT%29&rft.atitle=A+comparative+study+of+aerosol+microphysical+properties+retrieved+from+ground-based+remote+sensing+and+aircraft+in+situ+measurements+during+a+Saharan+dust+event&rft.au=Granados-Munoz%2C+Maria+Jose%3BBravo-Aranda%2C+Juan+Antonio%3BBaumgardner%2C+Darrel%3BGuerrero-Rascado%2C+Juan+Luis%3BPerez-Ramirez%2C+Daniel%3BNavas-Guzman%2C+Francisco%3BVeselovskii%2C+Igor%3BLyamani%2C+Hassan%3BValenzuela%2C+Antonio%3BOlmo%2C+Francisco+Jose%3BTitos%2C+Gloria%3BAndrey%2C+Javier%3BChaikovsky%2C+Anatoli%3BDubovik%2C+Oleg%3BGil-Ojeda%2C+Manuel%3BAlados-Arboledas%2C+Lucas&rft.aulast=Granados-Munoz&rft.aufirst=Maria&rft.date=2016-01-01&rft.volume=9&rft.issue=3&rft.spage=1113&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Measurement+Techniques+%28AMT%29&rft.issn=18671381&rft_id=info:doi/ L2 - http://www.atmos-meas-tech.net/9/1113/2016/amt-9-1113-2016.pdf http://www.atmospheric-measurement-techniques.net/ LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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Reference includes data from Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Number of references - 100 N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Includes appendices N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - aerosols; Africa; airborne methods; aircraft; algorithms; altitude; Andalusia Spain; atmosphere; backscattering; clastic sediments; concentration; data processing; data retrieval; diurnal variations; dust; Europe; geophysical surveys; grain size; Granada City Spain; Granada Spain; ground methods; Iberian Peninsula; in situ; instruments; laser methods; lidar methods; LIRIC; measurement; optical depth; optical properties; particles; photometry; physical properties; polarization; Raman spectra; remote sensing; Sahara; sediments; size distribution; Southern Europe; Spain; spatial distribution; spectra; statistical analysis; surveys; time series analysis; uncertainty; volume ER - TY - JOUR T1 - APXS classification of lower mount sharp bedrock; silica enrichment and acid alteration AN - 1832621893; 776758-59 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Schmidt, M E AU - Berger, J A AU - Gellert, R AU - Izawa, M R M AU - Ming, D W AU - Thompson, L AU - Desouza, E AU - Fisk, M AU - Perrett, G AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2043 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832621893?accountid=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=APXS+classification+of+lower+mount+sharp+bedrock%3B+silica+enrichment+and+acid+alteration&rft.au=Schmidt%2C+M+E%3BBerger%2C+J+A%3BGellert%2C+R%3BIzawa%2C+M+R+M%3BMing%2C+D+W%3BThompson%2C+L%3BDesouza%2C+E%3BFisk%2C+M%3BPerrett%2C+G%3BAnonymous&rft.aulast=Schmidt&rft.aufirst=M&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The identification and distribuiton of Pluto's non-volatile inventory AN - 1832621846; 776758-70 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cook, J C AU - Cruikshank, D P AU - Ore, C M Dalle AU - Ennico, K AU - Grundy, W M AU - Olkin, C B AU - Protopapa, S AU - Stern, S A AU - Weaver, H A AU - Young, L A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2296 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832621846?accountid=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=The+identification+and+distribuiton+of+Pluto%27s+non-volatile+inventory&rft.au=Cook%2C+J+C%3BCruikshank%2C+D+P%3BOre%2C+C+M+Dalle%3BEnnico%2C+K%3BGrundy%2C+W+M%3BOlkin%2C+C+B%3BProtopapa%2C+S%3BStern%2C+S+A%3BWeaver%2C+H+A%3BYoung%2C+L+A%3BAnonymous&rft.aulast=Cook&rft.aufirst=J&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Search for lunar volatiles using the lunar orbiter laser altimeter and the diviner lunar radiometer AN - 1832621785; 776759-84 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Fisher, E A AU - Lucey, P G AU - Lemelin, M AU - Greenhagen, B AU - Siegler, M AU - Mazarico, E AU - Neumann, G A AU - Smith, D E AU - Zuber, M T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2574 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832621785?accountid=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=Search+for+lunar+volatiles+using+the+lunar+orbiter+laser+altimeter+and+the+diviner+lunar+radiometer&rft.au=Fisher%2C+E+A%3BLucey%2C+P+G%3BLemelin%2C+M%3BGreenhagen%2C+B%3BSiegler%2C+M%3BMazarico%2C+E%3BNeumann%2C+G+A%3BSmith%2C+D+E%3BZuber%2C+M+T%3BAnonymous&rft.aulast=Fisher&rft.aufirst=E&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Photometric properties of Pluto AN - 1832621777; 776758-40 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Buie, M W AU - Stern, S A AU - Young, L A AU - Olkin, C B AU - Weaver, H A AU - Ennicok, K AU - Grundy, W M AU - Moore, J M AU - Beyer, R A AU - Schenk, P AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2927 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832621777?accountid=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=Photometric+properties+of+Pluto&rft.au=Buie%2C+M+W%3BStern%2C+S+A%3BYoung%2C+L+A%3BOlkin%2C+C+B%3BWeaver%2C+H+A%3BEnnicok%2C+K%3BGrundy%2C+W+M%3BMoore%2C+J+M%3BBeyer%2C+R+A%3BSchenk%2C+P%3BAnonymous&rft.aulast=Buie&rft.aufirst=M&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Fluorine in the pahrump outcrop, Gale Crater; implications for fluid circulation and alteration AN - 1832621750; 776758-58 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Forni, Olivier AU - Nachon, M AU - Mangold, N AU - Blaney, D L AU - Wiens, R C AU - Clegg, S M AU - Meslin, P-Y AU - Gasnault, O AU - Maurice, S AU - Cousin, A AU - Frydenvand, J AU - Schwenzer, S AU - Eigenbrode, J L AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1990 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832621750?accountid=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=Fluorine+in+the+pahrump+outcrop%2C+Gale+Crater%3B+implications+for+fluid+circulation+and+alteration&rft.au=Forni%2C+Olivier%3BNachon%2C+M%3BMangold%2C+N%3BBlaney%2C+D+L%3BWiens%2C+R+C%3BClegg%2C+S+M%3BMeslin%2C+P-Y%3BGasnault%2C+O%3BMaurice%2C+S%3BCousin%2C+A%3BFrydenvand%2C+J%3BSchwenzer%2C+S%3BEigenbrode%2C+J+L%3BAnonymous&rft.aulast=Forni&rft.aufirst=Olivier&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Revised age constraints for Mercury's Kuiperian and mansurian system AN - 1832621558; 776757-90 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Banks, Maria E AU - Zhiyong, Xiao AU - Braden, Sarah E AU - Marchi, Simone AU - Chapman, Clark R AU - Barlow, Nadine G AU - Fassett, Caleb I AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2943 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832621558?accountid=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=Revised+age+constraints+for+Mercury%27s+Kuiperian+and+mansurian+system&rft.au=Banks%2C+Maria+E%3BZhiyong%2C+Xiao%3BBraden%2C+Sarah+E%3BMarchi%2C+Simone%3BChapman%2C+Clark+R%3BBarlow%2C+Nadine+G%3BFassett%2C+Caleb+I%3BAnonymous&rft.aulast=Banks&rft.aufirst=Maria&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Geologic mapping of the Ac-H-2 coniraya quadrangle of ceres from NASA's Dawn Mission AN - 1832621521; 776757-98 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Pasckert, J H AU - Hiesinger, H AU - Williams, D A AU - Crown, D A AU - Mest, S C AU - Buczkowski, D L AU - Scully, J E C AU - Schmedemann, N AU - Jaumann, R AU - Roatsch, T AU - Preusker, F AU - Nass, A AU - Nathues, A AU - Hoffmann, M AU - Schaefer, M AU - De Sanctis, M C AU - Raymond, C A AU - Russell, C T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1450 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832621521?accountid=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=Geologic+mapping+of+the+Ac-H-2+coniraya+quadrangle+of+ceres+from+NASA%27s+Dawn+Mission&rft.au=Pasckert%2C+J+H%3BHiesinger%2C+H%3BWilliams%2C+D+A%3BCrown%2C+D+A%3BMest%2C+S+C%3BBuczkowski%2C+D+L%3BScully%2C+J+E+C%3BSchmedemann%2C+N%3BJaumann%2C+R%3BRoatsch%2C+T%3BPreusker%2C+F%3BNass%2C+A%3BNathues%2C+A%3BHoffmann%2C+M%3BSchaefer%2C+M%3BDe+Sanctis%2C+M+C%3BRaymond%2C+C+A%3BRussell%2C+C+T%3BAnonymous&rft.aulast=Pasckert&rft.aufirst=J&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Radio-frequency occultations and the low-degress shape of Mercury AN - 1832621474; 776757-104 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Perry, Mark E AU - Neumann, Gregory A AU - Johnson, Catherine L AU - Phillips, Roger J AU - Ernst, Carolyn M AU - Solomon, Sean C AU - Margot, Jean-Luc AU - Oberst, Juergen AU - Hauck, Steven A AU - Zuer, Maria T AU - Smith, David E AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2549 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832621474?accountid=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=Radio-frequency+occultations+and+the+low-degress+shape+of+Mercury&rft.au=Perry%2C+Mark+E%3BNeumann%2C+Gregory+A%3BJohnson%2C+Catherine+L%3BPhillips%2C+Roger+J%3BErnst%2C+Carolyn+M%3BSolomon%2C+Sean+C%3BMargot%2C+Jean-Luc%3BOberst%2C+Juergen%3BHauck%2C+Steven+A%3BZuer%2C+Maria+T%3BSmith%2C+David+E%3BAnonymous&rft.aulast=Perry&rft.aufirst=Mark&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Mercury's rottional state from the Mercury laser altimeter AN - 1832621470; 776757-10 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Mazarico, Erwan AU - Barker, Michael K AU - Neumann, Gregory A AU - Smith, David E AU - Zuber, Maria T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2062 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832621470?accountid=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=Mercury%27s+rottional+state+from+the+Mercury+laser+altimeter&rft.au=Mazarico%2C+Erwan%3BBarker%2C+Michael+K%3BNeumann%2C+Gregory+A%3BSmith%2C+David+E%3BZuber%2C+Maria+T%3BAnonymous&rft.aulast=Mazarico&rft.aufirst=Erwan&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Loading, relaxation and tidal wander at sputnik planum, Pluto AN - 1832621372; 776758-65 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nimmo, F AU - Bierson, C AU - Hamilton, D P AU - Moore, J M AU - McKinnon, W B AU - Stern, S A AU - Young, L A AU - Weaver, H A AU - Olkin, C B AU - Ennico, K AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2207 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832621372?accountid=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=Loading%2C+relaxation+and+tidal+wander+at+sputnik+planum%2C+Pluto&rft.au=Nimmo%2C+F%3BBierson%2C+C%3BHamilton%2C+D+P%3BMoore%2C+J+M%3BMcKinnon%2C+W+B%3BStern%2C+S+A%3BYoung%2C+L+A%3BWeaver%2C+H+A%3BOlkin%2C+C+B%3BEnnico%2C+K%3BAnonymous&rft.aulast=Nimmo&rft.aufirst=F&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Spectral characterization of acid wethering on synthetic martian basaltic glasses with spirit and pathfinder compositions AN - 1832621292; 776758-27 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Yant, Marcella H AU - rogers, A D AU - Nekvasil, H AU - S-YS, Zhao AU - Bristow, T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1323 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832621292?accountid=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=Spectral+characterization+of+acid+wethering+on+synthetic+martian+basaltic+glasses+with+spirit+and+pathfinder+compositions&rft.au=Yant%2C+Marcella+H%3Brogers%2C+A+D%3BNekvasil%2C+H%3BS-YS%2C+Zhao%3BBristow%2C+T%3BAnonymous&rft.aulast=Yant&rft.aufirst=Marcella&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Synthesis of akaganeite in the presenc eof sulfate; implications for akaganeite formtaion in Yellowknife Bay, Gale Crater, Mars AN - 1832621274; 776758-26 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Peretyazhko, T S AU - Fox, A AU - Sutter, B AU - Niles, P B AU - Adams, M AU - Morris, R V AU - Ming, D W AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2200 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832621274?accountid=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=Synthesis+of+akaganeite+in+the+presenc+eof+sulfate%3B+implications+for+akaganeite+formtaion+in+Yellowknife+Bay%2C+Gale+Crater%2C+Mars&rft.au=Peretyazhko%2C+T+S%3BFox%2C+A%3BSutter%2C+B%3BNiles%2C+P+B%3BAdams%2C+M%3BMorris%2C+R+V%3BMing%2C+D+W%3BAnonymous&rft.aulast=Peretyazhko&rft.aufirst=T&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The goelogy of Pluto and charon revealed by new horizons AN - 1832621270; 776759-10 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Spencer, J R AU - Moore, J M AU - McKinnon, W B AU - Stern, S A AU - Young, L A AU - Weaver, H A AU - Singer, K N AU - Howard, A D AU - Nimmo, F AU - Lauer, T AU - White, O L AU - Beyer, R A AU - Olkin, C B AU - Ennico, K AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2440 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832621270?accountid=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=The+goelogy+of+Pluto+and+charon+revealed+by+new+horizons&rft.au=Spencer%2C+J+R%3BMoore%2C+J+M%3BMcKinnon%2C+W+B%3BStern%2C+S+A%3BYoung%2C+L+A%3BWeaver%2C+H+A%3BSinger%2C+K+N%3BHoward%2C+A+D%3BNimmo%2C+F%3BLauer%2C+T%3BWhite%2C+O+L%3BBeyer%2C+R+A%3BOlkin%2C+C+B%3BEnnico%2C+K%3BAnonymous&rft.aulast=Spencer&rft.aufirst=J&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - NASA Goddard's Planetary Science winter school; training Goddard's early career planetary scientists in flight instrument design through experimential learing AN - 1832621137; 776756-50 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bleacher, Lora V AU - Lakew, B AU - Guzewich, S D AU - Bracken, J AU - Brown, T AU - Rivera, R AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2069 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832621137?accountid=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=NASA+Goddard%27s+Planetary+Science+winter+school%3B+training+Goddard%27s+early+career+planetary+scientists+in+flight+instrument+design+through+experimential+learing&rft.au=Bleacher%2C+Lora+V%3BLakew%2C+B%3BGuzewich%2C+S+D%3BBracken%2C+J%3BBrown%2C+T%3BRivera%2C+R%3BAnonymous&rft.aulast=Bleacher&rft.aufirst=Lora&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetry science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Geologic mapping of the AC-H-13 Urvara quadrangle of ceres from NASA's Dawn Mission AN - 1832620894; 776757-67 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Sizemore, H G AU - Williams, D A AU - Platz, T AU - Mest, S C AU - Yingst, R A AU - Crown, D A AU - O'Brien, D AU - Buczkowski, D L AU - Schenk, P M AU - Scully, J E C AU - Jaumann, R AU - Roatsch, T AU - Preusker, F AU - Nathues, A AU - DeSanctis, M C AU - Russell, C T AU - Raymond, C A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1599 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832620894?accountid=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=Geologic+mapping+of+the+AC-H-13+Urvara+quadrangle+of+ceres+from+NASA%27s+Dawn+Mission&rft.au=Sizemore%2C+H+G%3BWilliams%2C+D+A%3BPlatz%2C+T%3BMest%2C+S+C%3BYingst%2C+R+A%3BCrown%2C+D+A%3BO%27Brien%2C+D%3BBuczkowski%2C+D+L%3BSchenk%2C+P+M%3BScully%2C+J+E+C%3BJaumann%2C+R%3BRoatsch%2C+T%3BPreusker%2C+F%3BNathues%2C+A%3BDeSanctis%2C+M+C%3BRussell%2C+C+T%3BRaymond%2C+C+A%3BAnonymous&rft.aulast=Sizemore&rft.aufirst=H&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Ice melt, sea level rise and superstorms; evidence from paleoclimate data, climate modeling, and modern observations that 2 degrees C global warming could be dangerous AN - 1832620743; 774270-6 AB - We use numerical climate simulations, paleoclimate data, and modern observations to study the effect of growing ice melt from Antarctica and Greenland. Meltwater tends to stabilize the ocean column, inducing amplifying feedbacks that increase subsurface ocean warming and ice shelf melting. Cold meltwater and induced dynamical effects cause ocean surface cooling in the Southern Ocean and North Atlantic, thus increasing Earth's energy imbalance and heat flux into most of the global ocean's surface. Southern Ocean surface cooling, while lower latitudes are warming, increases precipitation on the Southern Ocean, increasing ocean stratification, slowing deepwater formation, and increasing ice sheet mass loss. These feedbacks make ice sheets in contact with the ocean vulnerable to accelerating disintegration. We hypothesize that ice mass loss from the most vulnerable ice, sufficient to raise sea level several meters, is better approximated as exponential than by a more linear response. Doubling times of 10, 20 or 40 years yield multi-meter sea level rise in about 50, 100 or 200 years. Recent ice melt doubling times are near the lower end of the 10-40-year range, but the record is too short to confirm the nature of the response. The feedbacks, including subsurface ocean warming, help explain paleoclimate data and point to a dominant Southern Ocean role in controlling atmospheric CO (sub 2) , which in turn exercised tight control on global temperature and sea level. The millennial (500-2000-year) timescale of deep-ocean ventilation affects the timescale for natural CO (sub 2) change and thus the timescale for paleo-global climate, ice sheet, and sea level changes, but this paleo-millennial timescale should not be misinterpreted as the timescale for ice sheet response to a rapid, large, human-made climate forcing. These climate feedbacks aid interpretation of events late in the prior interglacial, when sea level rose to +6-9 m with evidence of extreme storms while Earth was less than 1 degrees C warmer than today. Ice melt cooling of the North Atlantic and Southern oceans increases atmospheric temperature gradients, eddy kinetic energy and baroclinicity, thus driving more powerful storms. The modeling, paleoclimate evidence, and ongoing observations together imply that 2 degrees C global warming above the preindustrial level could be dangerous. Continued high fossil fuel emissions this century are predicted to yield (1) cooling of the Southern Ocean, especially in the Western Hemisphere; (2) slowing of the Southern Ocean overturning circulation, warming of the ice shelves, and growing ice sheet mass loss; (3) slowdown and eventual shutdown of the Atlantic overturning circulation with cooling of the North Atlantic region; (4) increasingly powerful storms; and (5) nonlinearly growing sea level rise, reaching several meters over a timescale of 50-150 years. These predictions, especially the cooling in the Southern Ocean and North Atlantic with markedly reduced warming or even cooling in Europe, differ fundamentally from existing climate change assessments. We discuss observations and modeling studies needed to refute or clarify these assertions. JF - Atmospheric Chemistry and Physics AU - Hansen, James AU - Sato, Makiko AU - Hearty, Paul AU - Ruedy, Reto AU - Kelley, Maxwell AU - Masson-Delmotte, Valerie AU - Russell, Gary AU - Tselioudis, George AU - Cao, Junji AU - Rignot, Eric AU - Velicogna, Isabella AU - Tormey, Blair AU - Donovan, Bailey AU - Kandiano, Evgeniya AU - von Schuckmann, Karina AU - Kharecha, Pushker AU - Legrande, Allegra N AU - Bauer, Michael AU - Lo, Kwok-Wai Y1 - 2016 PY - 2016 DA - 2016 SP - 3761 EP - 3812 PB - Copernicus, Katlenburg-Lindau VL - 16 IS - 6 SN - 1680-7316, 1680-7316 KW - sea ice KW - data processing KW - solar forcing KW - fresh water KW - global change KW - atmospheric precipitation KW - wave runup KW - paleoclimatology KW - climate change KW - temperature KW - feedback KW - Greenland KW - Dansgaard-Oeschger cycles KW - mass balance KW - Eemian KW - storms KW - sedimentary structures KW - world ocean KW - climate KW - processes KW - ocean circulation KW - ice cores KW - experimental studies KW - boulders KW - Antarctic bottom water KW - Quaternary KW - numerical models KW - annual variations KW - time series analysis KW - clastic sediments KW - global KW - West Indies KW - atmosphere KW - effects KW - anomalies KW - satellite methods KW - measurement KW - models KW - Atlantic Ocean Islands KW - thermohaline circulation KW - sea-level changes KW - stratification KW - dune structures KW - eddies KW - Pleistocene KW - insolation KW - atmospheric pressure KW - Anthropocene KW - air KW - seasonal variations KW - glacial geology KW - upper Holocene KW - North Atlantic KW - winds KW - Atlantic Ocean KW - bottom water KW - climatic controls KW - sea water KW - GRACE KW - simulation KW - Holocene KW - energy balance KW - cores KW - observations KW - Heinrich events KW - upper Pleistocene KW - modern KW - Cenozoic KW - bedding plane irregularities KW - melting KW - ice KW - sediments KW - trend-surface analysis KW - climate forcing KW - kinetics KW - MIS 5 KW - global warming KW - interglacial environment KW - Arctic region KW - Antarctic Ocean KW - statistical analysis KW - prediction KW - Caribbean region KW - chevron marks KW - indicators KW - ice sheets KW - Bermuda KW - Bahamas KW - Antarctica KW - North Atlantic Deep Water KW - natural hazards KW - Atlantic Meridional Overturning Circulation KW - sea-surface temperature KW - meltwater KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832620743?accountid=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=Atmospheric+Chemistry+and+Physics&rft.atitle=Ice+melt%2C+sea+level+rise+and+superstorms%3B+evidence+from+paleoclimate+data%2C+climate+modeling%2C+and+modern+observations+that+2+degrees+C+global+warming+could+be+dangerous&rft.au=Hansen%2C+James%3BSato%2C+Makiko%3BHearty%2C+Paul%3BRuedy%2C+Reto%3BKelley%2C+Maxwell%3BMasson-Delmotte%2C+Valerie%3BRussell%2C+Gary%3BTselioudis%2C+George%3BCao%2C+Junji%3BRignot%2C+Eric%3BVelicogna%2C+Isabella%3BTormey%2C+Blair%3BDonovan%2C+Bailey%3BKandiano%2C+Evgeniya%3Bvon+Schuckmann%2C+Karina%3BKharecha%2C+Pushker%3BLegrande%2C+Allegra+N%3BBauer%2C+Michael%3BLo%2C+Kwok-Wai&rft.aulast=Hansen&rft.aufirst=James&rft.date=2016-01-01&rft.volume=16&rft.issue=6&rft.spage=3761&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics&rft.issn=16807316&rft_id=info:doi/ L2 - http://www.atmos-chem-phys.net/16/3761/2016/acp-16-3761-2016.pdf http://www.atmospheric-chemistry-and-physics.net/home.html LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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Reference includes data from Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Number of references - 319 N1 - Document feature - illus. incl. sects., sketch maps N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - air; annual variations; anomalies; Antarctic bottom water; Antarctic Ocean; Antarctica; Anthropocene; Arctic region; Atlantic Meridional Overturning Circulation; Atlantic Ocean; Atlantic Ocean Islands; atmosphere; atmospheric precipitation; atmospheric pressure; Bahamas; bedding plane irregularities; Bermuda; bottom water; boulders; Caribbean region; Cenozoic; chevron marks; clastic sediments; climate; climate change; climate forcing; climatic controls; cores; Dansgaard-Oeschger cycles; data processing; dune structures; eddies; Eemian; effects; energy balance; experimental studies; feedback; fresh water; glacial geology; global; global change; global warming; GRACE; Greenland; Heinrich events; Holocene; ice; ice cores; ice sheets; indicators; insolation; interglacial environment; kinetics; mass balance; measurement; melting; meltwater; MIS 5; models; modern; natural hazards; North Atlantic; North Atlantic Deep Water; numerical models; observations; ocean circulation; paleoclimatology; Pleistocene; prediction; processes; Quaternary; satellite methods; sea ice; sea water; sea-level changes; sea-surface temperature; seasonal variations; sedimentary structures; sediments; simulation; solar forcing; statistical analysis; storms; stratification; temperature; thermohaline circulation; time series analysis; trend-surface analysis; upper Holocene; upper Pleistocene; wave runup; West Indies; winds; world ocean ER - TY - JOUR T1 - Charon's ner IR ice signature as seen by new horizons AN - 1832620621; 776758-69 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cook, J C AU - Cruikshank, D P AU - Ennico, Kim AU - Grundy, William M AU - Olkin, Cathy B AU - Protopapa, Silvia AU - Stern, S Alan AU - Weaver, Harold A AU - Young, Leslie A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2122 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832620621?accountid=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=Charon%27s+ner+IR+ice+signature+as+seen+by+new+horizons&rft.au=Cook%2C+J+C%3BCruikshank%2C+D+P%3BEnnico%2C+Kim%3BGrundy%2C+William+M%3BOlkin%2C+Cathy+B%3BProtopapa%2C+Silvia%3BStern%2C+S+Alan%3BWeaver%2C+Harold+A%3BYoung%2C+Leslie+A%3BAnonymous&rft.aulast=Cook&rft.aufirst=J&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - A ocnsensus crter catalog of Pluto, charon, and nix AN - 1832620617; 776758-80 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Robbins, S J AU - Singer, K N AU - Bray, V J AU - Schenk, P AU - McKinnon, W B AU - Runyon, K AU - Weaver, H A AU - Zangari, A AU - Young, L A AU - Beyer, R A AU - Porter, S AU - Lauer, T R AU - Moore, J M AU - Olkin, C B AU - Ennico, K AU - Stern, S A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1756 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832620617?accountid=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=A+ocnsensus+crter+catalog+of+Pluto%2C+charon%2C+and+nix&rft.au=Robbins%2C+S+J%3BSinger%2C+K+N%3BBray%2C+V+J%3BSchenk%2C+P%3BMcKinnon%2C+W+B%3BRunyon%2C+K%3BWeaver%2C+H+A%3BZangari%2C+A%3BYoung%2C+L+A%3BBeyer%2C+R+A%3BPorter%2C+S%3BLauer%2C+T+R%3BMoore%2C+J+M%3BOlkin%2C+C+B%3BEnnico%2C+K%3BStern%2C+S+A%3BAnonymous&rft.aulast=Robbins&rft.aufirst=S&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Pluto's putativje cyrovolcanic constructs AN - 1832620488; 776758-44 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Singer, K N AU - White, O L AU - Schenk, P M AU - Moore, J M AU - McKinnon, W B AU - Howard, A D AU - Spencer, J R AU - Stern, S A AU - Cook, J C AU - Grundy, W M AU - Cruikshank, D P AU - Beyer, R A AU - Nimmo, F AU - Umurhan, O AU - Howett, C J A AU - Parker, A H AU - Protopapa, S AU - Lauer, T R AU - Weaver, H A AU - Young, L A AU - Olkin, C B AU - Ennico, K AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2276 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832620488?accountid=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=Pluto%27s+putativje+cyrovolcanic+constructs&rft.au=Singer%2C+K+N%3BWhite%2C+O+L%3BSchenk%2C+P+M%3BMoore%2C+J+M%3BMcKinnon%2C+W+B%3BHoward%2C+A+D%3BSpencer%2C+J+R%3BStern%2C+S+A%3BCook%2C+J+C%3BGrundy%2C+W+M%3BCruikshank%2C+D+P%3BBeyer%2C+R+A%3BNimmo%2C+F%3BUmurhan%2C+O%3BHowett%2C+C+J+A%3BParker%2C+A+H%3BProtopapa%2C+S%3BLauer%2C+T+R%3BWeaver%2C+H+A%3BYoung%2C+L+A%3BOlkin%2C+C+B%3BEnnico%2C+K%3BAnonymous&rft.aulast=Singer&rft.aufirst=K&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Searching for lunar hoirzon glow with the lunar orbiter laser altimeer AN - 1832620475; 776756-49 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Barker, Michael K AU - Mazarico, E AU - Smith, D E AU - X, Sun AU - Zuber, M T AU - McClanahan, T P AU - Neumann, G A AU - Torrence, M H AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1985 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832620475?accountid=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=Searching+for+lunar+hoirzon+glow+with+the+lunar+orbiter+laser+altimeer&rft.au=Barker%2C+Michael+K%3BMazarico%2C+E%3BSmith%2C+D+E%3BX%2C+Sun%3BZuber%2C+M+T%3BMcClanahan%2C+T+P%3BNeumann%2C+G+A%3BTorrence%2C+M+H%3BAnonymous&rft.aulast=Barker&rft.aufirst=Michael&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetry science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Geologica mapping of the AC-H-4 Ezinu uadrangle of ceres from NASA's Dawn Mission AN - 1832620307; 776757-92 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Sucully, J E C AU - Raymond, C A AU - Williams, D A AU - Buczkowski, D L AU - Mest, S C AU - Hughson, K AU - Rusell, C T AU - Kneissl, T AU - Ruesch, O AU - Frigeri, A AU - Combe, J-P AU - Jaumann, R AU - Roatsch, T AU - Preusker, F AU - Platz, T AU - Nathues, A AU - Hoffmann, M AU - Schaefer, M AU - Park, R AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1627 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832620307?accountid=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=Geologica+mapping+of+the+AC-H-4+Ezinu+uadrangle+of+ceres+from+NASA%27s+Dawn+Mission&rft.au=Sucully%2C+J+E+C%3BRaymond%2C+C+A%3BWilliams%2C+D+A%3BBuczkowski%2C+D+L%3BMest%2C+S+C%3BHughson%2C+K%3BRusell%2C+C+T%3BKneissl%2C+T%3BRuesch%2C+O%3BFrigeri%2C+A%3BCombe%2C+J-P%3BJaumann%2C+R%3BRoatsch%2C+T%3BPreusker%2C+F%3BPlatz%2C+T%3BNathues%2C+A%3BHoffmann%2C+M%3BSchaefer%2C+M%3BPark%2C+R%3BAnonymous&rft.aulast=Sucully&rft.aufirst=J+E&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - the puzzling detection of Pluto in the x-ray by chandra AN - 1832620200; 776758-47 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lisse, C M AU - McNutt, R L, Jr AU - Bagenal, F AU - Stern, S A AU - Cravens, T E AU - Hill, M E AU - Kollmann, P AU - Strobel, D F AU - Elliott, H A AU - McComas, D J AU - Chutjian, A AU - Weaver, H A AU - Wolk, S J AU - Young, L A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2449 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832620200?accountid=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=the+puzzling+detection+of+Pluto+in+the+x-ray+by+chandra&rft.au=Lisse%2C+C+M%3BMcNutt%2C+R+L%2C+Jr%3BBagenal%2C+F%3BStern%2C+S+A%3BCravens%2C+T+E%3BHill%2C+M+E%3BKollmann%2C+P%3BStrobel%2C+D+F%3BElliott%2C+H+A%3BMcComas%2C+D+J%3BChutjian%2C+A%3BWeaver%2C+H+A%3BWolk%2C+S+J%3BYoung%2C+L+A%3BAnonymous&rft.aulast=Lisse&rft.aufirst=C&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Lunar and Mercurian impact basin formation; similar or dissimilar? Insights from numerical modeling AN - 1832620128; 776757-19 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Potter, Ross W K AU - Head, James W AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1117 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832620128?accountid=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=Lunar+and+Mercurian+impact+basin+formation%3B+similar+or+dissimilar%3F+Insights+from+numerical+modeling&rft.au=Potter%2C+Ross+W+K%3BHead%2C+James+W%3BAnonymous&rft.aulast=Potter&rft.aufirst=Ross+W&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Late movement of basin-edge lobate scarps on Mercury AN - 1832620075; 776757-84 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Fegan, Emma R AU - Rothery, D A AU - Marchi, S AU - Conway, S J AU - Anand, M AU - Massironi, M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2359 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832620075?accountid=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=Late+movement+of+basin-edge+lobate+scarps+on+Mercury&rft.au=Fegan%2C+Emma+R%3BRothery%2C+D+A%3BMarchi%2C+S%3BConway%2C+S+J%3BAnand%2C+M%3BMassironi%2C+M%3BAnonymous&rft.aulast=Fegan&rft.aufirst=Emma&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Pluto and charon; surface colors and compositions--a hypothesis AN - 1832620048; 776758-7 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cruikshank, D P AU - Stern, S A AU - Grundy, W M AU - Moore, J M AU - Young, L A AU - Olkin, C B AU - Weaver, H A AU - Ennico, K AU - Cook, J C AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1696 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832620048?accountid=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=Pluto+and+charon%3B+surface+colors+and+compositions--a+hypothesis&rft.au=Cruikshank%2C+D+P%3BStern%2C+S+A%3BGrundy%2C+W+M%3BMoore%2C+J+M%3BYoung%2C+L+A%3BOlkin%2C+C+B%3BWeaver%2C+H+A%3BEnnico%2C+K%3BCook%2C+J+C%3BAnonymous&rft.aulast=Cruikshank&rft.aufirst=D&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Cold trapping of lunar polar crater volatiles; a comparison of two theories AN - 1832619885; 776759-16 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Farrell, W M AU - Hurley, D M AU - Poston, M J AU - Hayne, P O AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1224 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832619885?accountid=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=Cold+trapping+of+lunar+polar+crater+volatiles%3B+a+comparison+of+two+theories&rft.au=Farrell%2C+W+M%3BHurley%2C+D+M%3BPoston%2C+M+J%3BHayne%2C+P+O%3BAnonymous&rft.aulast=Farrell&rft.aufirst=W&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Mercury shape model from laser altimetry and planetary comparisons AN - 1832619881; 776757-108 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Neumann, Gregory A AU - Perry, Mark E AU - Mazaraico, Erwan AU - Ernst, Carolyn M AU - Zuer, Maria T AU - Smith, David E AU - Becker, Kris J AU - Gaskell, Robert E AU - Head, James W AU - Robinson, mark S AU - Solomon, Sean C AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2087 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832619881?accountid=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=Mercury+shape+model+from+laser+altimetry+and+planetary+comparisons&rft.au=Neumann%2C+Gregory+A%3BPerry%2C+Mark+E%3BMazaraico%2C+Erwan%3BErnst%2C+Carolyn+M%3BZuer%2C+Maria+T%3BSmith%2C+David+E%3BBecker%2C+Kris+J%3BGaskell%2C+Robert+E%3BHead%2C+James+W%3BRobinson%2C+mark+S%3BSolomon%2C+Sean+C%3BAnonymous&rft.aulast=Neumann&rft.aufirst=Gregory&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Geologic mapping of the Ac-H-14 Yalode Quadrangle of ceres from NASA's Dawn Mission AN - 1832619819; 776757-89 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Crown, D A AU - Yingst, R A AU - Mest, S C AU - Platz, T AU - Sizemore, H G AU - Berman, D C AU - Williams, D A AU - Roatsch, T AU - Preusker, F AU - Nathues, A AU - Hoffman, M AU - Schaefer, M AU - Raymond, C A AU - Russell, C T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1602 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832619819?accountid=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=Geologic+mapping+of+the+Ac-H-14+Yalode+Quadrangle+of+ceres+from+NASA%27s+Dawn+Mission&rft.au=Crown%2C+D+A%3BYingst%2C+R+A%3BMest%2C+S+C%3BPlatz%2C+T%3BSizemore%2C+H+G%3BBerman%2C+D+C%3BWilliams%2C+D+A%3BRoatsch%2C+T%3BPreusker%2C+F%3BNathues%2C+A%3BHoffman%2C+M%3BSchaefer%2C+M%3BRaymond%2C+C+A%3BRussell%2C+C+T%3BAnonymous&rft.aulast=Crown&rft.aufirst=D&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Student organized research via hgh-altitude balloon investigations; undergraduate student instrumentation project AN - 1832619809; 776756-52 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Gamblin, R B AU - Bering, E A AU - Canales, D AU - Nowling, M AU - Ehteshami, A AU - Ahmad, H AU - Lefer, B AU - Marrero, E AU - Pina, M AU - Cao, J AU - Hermosillo, D AU - Dunbar, B J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no3014 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832619809?accountid=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=Student+organized+research+via+hgh-altitude+balloon+investigations%3B+undergraduate+student+instrumentation+project&rft.au=Gamblin%2C+R+B%3BBering%2C+E+A%3BCanales%2C+D%3BNowling%2C+M%3BEhteshami%2C+A%3BAhmad%2C+H%3BLefer%2C+B%3BMarrero%2C+E%3BPina%2C+M%3BCao%2C+J%3BHermosillo%2C+D%3BDunbar%2C+B+J%3BAnonymous&rft.aulast=Gamblin&rft.aufirst=R&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetry science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The lunar south polar crust AN - 1832619643; 776759-5 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 - Goossens, Sander J AU - Mazarico, Erwan AU - Head, James W AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2374 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832619643?accountid=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=The+lunar+south+polar+crust&rft.au=Smith%2C+David+E%3BZuber%2C+Maria+T%3BNeumann%2C+Gregory+A%3BGoossens%2C+Sander+J%3BMazarico%2C+Erwan%3BHead%2C+James+W%3BAnonymous&rft.aulast=Smith&rft.aufirst=David&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Mineralogy of the Mercurian surface AN - 1832619632; 776757-78 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Vander Kaaden, Kathleen E AU - McCubbin, Fracis, M AU - Nittler, R AU - Peplowski, Patrick N AU - Weider, Shoshana Z AU - Evans, Larry R AU - Frank, Elizabeth A AU - McCoy, Timothy AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1476 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832619632?accountid=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=Mineralogy+of+the+Mercurian+surface&rft.au=Vander+Kaaden%2C+Kathleen+E%3BMcCubbin%2C+Fracis%2C+M%3BNittler%2C+R%3BPeplowski%2C+Patrick+N%3BWeider%2C+Shoshana+Z%3BEvans%2C+Larry+R%3BFrank%2C+Elizabeth+A%3BMcCoy%2C+Timothy%3BAnonymous&rft.aulast=Vander+Kaaden&rft.aufirst=Kathleen&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Topography of Pluto and charon; impact cratering AN - 1832619630; 776758-67 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Schenk, P AU - Singer, K N AU - Robbins, S J AU - Bray, V J AU - Beyer, R A AU - Moore, J M AU - McKinnon, W B AU - Spencer, J R AU - Runyon, K AU - Stern, S A AU - Young, L A AU - Olkin, C B AU - Ennico, K AU - Weaver, H A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2795 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832619630?accountid=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=Topography+of+Pluto+and+charon%3B+impact+cratering&rft.au=Schenk%2C+P%3BSinger%2C+K+N%3BRobbins%2C+S+J%3BBray%2C+V+J%3BBeyer%2C+R+A%3BMoore%2C+J+M%3BMcKinnon%2C+W+B%3BSpencer%2C+J+R%3BRunyon%2C+K%3BStern%2C+S+A%3BYoung%2C+L+A%3BOlkin%2C+C+B%3BEnnico%2C+K%3BWeaver%2C+H+A%3BAnonymous&rft.aulast=Schenk&rft.aufirst=P&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Chondrules and opaque phases in unequilibrated R chondrites; a comprehensive assessment of their formation AN - 1832619528; 776758-49 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Miller, K E AU - Lauretta, D S AU - Connolly, H C, Jr AU - Berger, E L AU - Domanik, K AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1496 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832619528?accountid=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=Chondrules+and+opaque+phases+in+unequilibrated+R+chondrites%3B+a+comprehensive+assessment+of+their+formation&rft.au=Miller%2C+K+E%3BLauretta%2C+D+S%3BConnolly%2C+H+C%2C+Jr%3BBerger%2C+E+L%3BDomanik%2C+K%3BAnonymous&rft.aulast=Miller&rft.aufirst=K&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Bright stuff on ceres=sulfates and carbonates on CI chondrites AN - 1832619514; 776757-26 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Zolensky, Michael AU - Chan, Queenie H S AU - Gounelle, Matthieu AU - Fries, Marc AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2174 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832619514?accountid=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=Bright+stuff+on+ceres%3Dsulfates+and+carbonates+on+CI+chondrites&rft.au=Zolensky%2C+Michael%3BChan%2C+Queenie+H+S%3BGounelle%2C+Matthieu%3BFries%2C+Marc%3BAnonymous&rft.aulast=Zolensky&rft.aufirst=Michael&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Pluto and charon; the non-ice surface component AN - 1832619418; 776758-45 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cruikshank, D P AU - Clemett, S J AU - Grundy, W M AU - Stern, S A AU - Olkin, C B AU - Binzel, R P AU - Cook, J C AU - Ore, C M Dalle AU - Earle, A M AU - Smith-Ennico, K AU - Jennings, D E AU - Howett, C J A AU - Linscott, I R AU - Lunsford, A W AU - Parker, A H AU - Parker, J Wm AU - Protopapa, S AU - Reuter, D C AU - Singer, K N AU - Spencer, J R AU - Tsang, C C C AU - Verbiscer, A J AU - Weaver, H A AU - Young, L A AU - Materese, C K AU - Sandford, S A AU - Imanaka, H AU - Nuevo, M AU - Schmitt, B AU - Quirico, E AU - Philippe, S AU - Hiroi, T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1700 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832619418?accountid=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=Pluto+and+charon%3B+the+non-ice+surface+component&rft.au=Cruikshank%2C+D+P%3BClemett%2C+S+J%3BGrundy%2C+W+M%3BStern%2C+S+A%3BOlkin%2C+C+B%3BBinzel%2C+R+P%3BCook%2C+J+C%3BOre%2C+C+M+Dalle%3BEarle%2C+A+M%3BSmith-Ennico%2C+K%3BJennings%2C+D+E%3BHowett%2C+C+J+A%3BLinscott%2C+I+R%3BLunsford%2C+A+W%3BParker%2C+A+H%3BParker%2C+J+Wm%3BProtopapa%2C+S%3BReuter%2C+D+C%3BSinger%2C+K+N%3BSpencer%2C+J+R%3BTsang%2C+C+C+C%3BVerbiscer%2C+A+J%3BWeaver%2C+H+A%3BYoung%2C+L+A%3BMaterese%2C+C+K%3BSandford%2C+S+A%3BImanaka%2C+H%3BNuevo%2C+M%3BSchmitt%2C+B%3BQuirico%2C+E%3BPhilippe%2C+S%3BHiroi%2C+T%3BAnonymous&rft.aulast=Cruikshank&rft.aufirst=D&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Have stellar occultations probed charon's chasmata? AN - 1832619414; 776758-42 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Zangari, A M AU - Singer, K N AU - Beyer, R A AU - Schenk, P M AU - Moore, J M AU - McKinnon, W B AU - Stern, S A AU - Young, L A AU - Weaver, H A AU - Olkin, C B AU - Ennico, K AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1535 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832619414?accountid=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=Have+stellar+occultations+probed+charon%27s+chasmata%3F&rft.au=Zangari%2C+A+M%3BSinger%2C+K+N%3BBeyer%2C+R+A%3BSchenk%2C+P+M%3BMoore%2C+J+M%3BMcKinnon%2C+W+B%3BStern%2C+S+A%3BYoung%2C+L+A%3BWeaver%2C+H+A%3BOlkin%2C+C+B%3BEnnico%2C+K%3BAnonymous&rft.aulast=Zangari&rft.aufirst=A&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 8 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Searching for lunar horizon glow with the LRO star tracker cameras AN - 1832619403; 776756-44 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Stubbs, T J AU - Glenar, D A AU - Wang, Y AU - McClanahan, T P AU - Myers, D C AU - Keller, J W AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2851 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832619403?accountid=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=Searching+for+lunar+horizon+glow+with+the+LRO+star+tracker+cameras&rft.au=Stubbs%2C+T+J%3BGlenar%2C+D+A%3BWang%2C+Y%3BMcClanahan%2C+T+P%3BMyers%2C+D+C%3BKeller%2C+J+W%3BAnonymous&rft.aulast=Stubbs&rft.aufirst=T&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetry science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Characterization of shock effects in calcite by raman spectroscopy; results of experiments AN - 1832619303; 776757-50 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bells, M S AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1196 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832619303?accountid=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=Characterization+of+shock+effects+in+calcite+by+raman+spectroscopy%3B+results+of+experiments&rft.au=Bells%2C+M+S%3BAnonymous&rft.aulast=Bells&rft.aufirst=M&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Geologic mapping campaign for ceres from NASA Dawn Mission AN - 1832619042; 776757-17 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Williams, David A AU - Buczkowski, D L AU - Mest, S C AU - Scully, J E C AU - Jaumann, R AU - Raymond, C A AU - Russell, C T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1515 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832619042?accountid=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=Geologic+mapping+campaign+for+ceres+from+NASA+Dawn+Mission&rft.au=Williams%2C+David+A%3BBuczkowski%2C+D+L%3BMest%2C+S+C%3BScully%2C+J+E+C%3BJaumann%2C+R%3BRaymond%2C+C+A%3BRussell%2C+C+T%3BAnonymous&rft.aulast=Williams&rft.aufirst=David&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Diagenesis in the Murray Formation, Gale Crater, Mars AN - 1832618987; 776758-60 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Rampe, E B AU - Ming, D W AU - Morris, R V AU - Blake, D F AU - Bristow, T F AU - Chipera, S J AU - Vaniman, D T AU - Yen, A S AU - Grotzinger, J P AU - Downs, R T AU - Morrison, S M AU - Peretyazhko, T AU - Achilles, C N AU - Bish, D L AU - Cavanagh, P D AU - Craig, P I AU - Crisp, J A AU - Fairen, A G AU - Des Marais, D J AU - Farmer, J D AU - Fendrich, K V AU - Morookian, J M AU - Treiman, A H AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2543 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832618987?accountid=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=Diagenesis+in+the+Murray+Formation%2C+Gale+Crater%2C+Mars&rft.au=Rampe%2C+E+B%3BMing%2C+D+W%3BMorris%2C+R+V%3BBlake%2C+D+F%3BBristow%2C+T+F%3BChipera%2C+S+J%3BVaniman%2C+D+T%3BYen%2C+A+S%3BGrotzinger%2C+J+P%3BDowns%2C+R+T%3BMorrison%2C+S+M%3BPeretyazhko%2C+T%3BAchilles%2C+C+N%3BBish%2C+D+L%3BCavanagh%2C+P+D%3BCraig%2C+P+I%3BCrisp%2C+J+A%3BFairen%2C+A+G%3BDes+Marais%2C+D+J%3BFarmer%2C+J+D%3BFendrich%2C+K+V%3BMorookian%2C+J+M%3BTreiman%2C+A+H%3BAnonymous&rft.aulast=Rampe&rft.aufirst=E&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Finesse spaceward bound - teacher engagement in NASA science and exploration field research AN - 1832618916; 776756-54 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Jones, Andrea J P AU - Heldmann, J L AU - Sheely, T AU - Karlin, J AU - Johnson, S AU - Rosemore, A AU - Hughes, S AU - Nawotniak, S Kobs AU - Lim, D S S AU - Garry, W B AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2295 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832618916?accountid=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=Finesse+spaceward+bound+-+teacher+engagement+in+NASA+science+and+exploration+field+research&rft.au=Jones%2C+Andrea+J+P%3BHeldmann%2C+J+L%3BSheely%2C+T%3BKarlin%2C+J%3BJohnson%2C+S%3BRosemore%2C+A%3BHughes%2C+S%3BNawotniak%2C+S+Kobs%3BLim%2C+D+S+S%3BGarry%2C+W+B%3BAnonymous&rft.aulast=Jones&rft.aufirst=Andrea+J&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetry science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Aristarchus in eclipse - new insights into a pyroclastic deposit AN - 1832618907; 776758-72 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Allen, Carlton AU - Hayne, Paul AU - Greenhagen, Benjamin AU - Bandfield, Joshua AU - Lucey, Paul AU - Paige, David AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1309 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832618907?accountid=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=Aristarchus+in+eclipse+-+new+insights+into+a+pyroclastic+deposit&rft.au=Allen%2C+Carlton%3BHayne%2C+Paul%3BGreenhagen%2C+Benjamin%3BBandfield%2C+Joshua%3BLucey%2C+Paul%3BPaige%2C+David%3BAnonymous&rft.aulast=Allen&rft.aufirst=Carlton&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - the interplay between volcanism and tectonics on Mercury AN - 1832618769; 776757-97 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Byrne, Paul K AU - Fassett, Caleb L AU - Klimczak, Christian AU - Ostrach, Lillian R AU - Chapman, Clark R AU - Denevi, Brett W AU - Sengor, A M Celal AU - hauck, Steven A, II AU - Evans, Alexander J AU - Banks, Maria E AU - Watters, Thomas R AU - Head, James W AU - Solomon, Sean C AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1227 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832618769?accountid=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=the+interplay+between+volcanism+and+tectonics+on+Mercury&rft.au=Byrne%2C+Paul+K%3BFassett%2C+Caleb+L%3BKlimczak%2C+Christian%3BOstrach%2C+Lillian+R%3BChapman%2C+Clark+R%3BDenevi%2C+Brett+W%3BSengor%2C+A+M+Celal%3Bhauck%2C+Steven+A%2C+II%3BEvans%2C+Alexander+J%3BBanks%2C+Maria+E%3BWatters%2C+Thomas+R%3BHead%2C+James+W%3BSolomon%2C+Sean+C%3BAnonymous&rft.aulast=Byrne&rft.aufirst=Paul&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Assessing the reltionship between absolute age and surface roughness with LROC AN - 1832618751; 776758-6 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lawrence, S J AU - Stopar, J D AU - Ostrach, L R AU - Jolliff, B L AU - Robinson, M S AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2755 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832618751?accountid=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=Assessing+the+reltionship+between+absolute+age+and+surface+roughness+with+LROC&rft.au=Lawrence%2C+S+J%3BStopar%2C+J+D%3BOstrach%2C+L+R%3BJolliff%2C+B+L%3BRobinson%2C+M+S%3BAnonymous&rft.aulast=Lawrence&rft.aufirst=S&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - differential vertical and radial displacement along faults in the crater wall during the formation of meteor crater, AZ AN - 1832618736; 776756-5 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Denton, C Adeene AU - Kring, David A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1197 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832618736?accountid=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=differential+vertical+and+radial+displacement+along+faults+in+the+crater+wall+during+the+formation+of+meteor+crater%2C+AZ&rft.au=Denton%2C+C+Adeene%3BKring%2C+David+A%3BAnonymous&rft.aulast=Denton&rft.aufirst=C&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetry science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Geologic mapping of the Ac-H-1 quadrangle of ceres from NASA's Dawn Mission AN - 1832618639; 776757-25 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Ruesch, O AU - McFaddean, L A AU - Hiesinger, H AU - Scully, J AU - Kneissl, T AU - Hughson, K AU - Williams, D A AU - Roatsch, T AU - Platz, T AU - Preusker, F AU - Schmedemann, N AU - Marchi, S AU - Jaumann, R AU - Nathues, A AU - Raymond, C A AU - Russell, C T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2050 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832618639?accountid=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=Geologic+mapping+of+the+Ac-H-1+quadrangle+of+ceres+from+NASA%27s+Dawn+Mission&rft.au=Ruesch%2C+O%3BMcFaddean%2C+L+A%3BHiesinger%2C+H%3BScully%2C+J%3BKneissl%2C+T%3BHughson%2C+K%3BWilliams%2C+D+A%3BRoatsch%2C+T%3BPlatz%2C+T%3BPreusker%2C+F%3BSchmedemann%2C+N%3BMarchi%2C+S%3BJaumann%2C+R%3BNathues%2C+A%3BRaymond%2C+C+A%3BRussell%2C+C+T%3BAnonymous&rft.aulast=Ruesch&rft.aufirst=O&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 6 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Observtions of titanium, aluminum and magnesium in the lunar exoshere by LADEE UVS AN - 1832618557; 776759-1 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Colaprete, A AU - Wooden, D AU - Cook, A AU - Shirley, M AU - Sarantos, M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2635 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832618557?accountid=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=Observtions+of+titanium%2C+aluminum+and+magnesium+in+the+lunar+exoshere+by+LADEE+UVS&rft.au=Colaprete%2C+A%3BWooden%2C+D%3BCook%2C+A%3BShirley%2C+M%3BSarantos%2C+M%3BAnonymous&rft.aulast=Colaprete&rft.aufirst=A&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Geologic mapping of the Ac-H-10 Rongo and Ac-H-15 Zadeni quadrangles of ceres from NASA's Dawn Mission AN - 1832618443; 776757-82 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Platz, T AU - nathues, A AU - Sizemore, H G AU - Ruesch, O AU - Hoffmann, M AU - Schaefer, M AU - Crown, D A AU - Mest, S C AU - Yingst, R A AU - Williams, D A AU - Buczkowski, D L AU - Hughson, K AU - Kneissl, T AU - Schmedemann, N AU - Schorghofer, N AU - Nass, A AU - Preusker, F AU - Russell, C T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2595 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832618443?accountid=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=Geologic+mapping+of+the+Ac-H-10+Rongo+and+Ac-H-15+Zadeni+quadrangles+of+ceres+from+NASA%27s+Dawn+Mission&rft.au=Platz%2C+T%3Bnathues%2C+A%3BSizemore%2C+H+G%3BRuesch%2C+O%3BHoffmann%2C+M%3BSchaefer%2C+M%3BCrown%2C+D+A%3BMest%2C+S+C%3BYingst%2C+R+A%3BWilliams%2C+D+A%3BBuczkowski%2C+D+L%3BHughson%2C+K%3BKneissl%2C+T%3BSchmedemann%2C+N%3BSchorghofer%2C+N%3BNass%2C+A%3BPreusker%2C+F%3BRussell%2C+C+T%3BAnonymous&rft.aulast=Platz&rft.aufirst=T&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Radioisotope power system effects on science instruments and measurements AN - 1832616438; 777378-84 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bairstow, B K AU - Lee, Y H AU - Smythe, W D AU - Zakrajsek, J F AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 2628 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832616438?accountid=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=Radioisotope+power+system+effects+on+science+instruments+and+measurements&rft.au=Bairstow%2C+B+K%3BLee%2C+Y+H%3BSmythe%2C+W+D%3BZakrajsek%2C+J+F%3BAnonymous&rft.aulast=Bairstow&rft.aufirst=B&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - NASA Johnson Space Center's Planetary sample analysis and mission science (PSAMS) Laboratory; a national facility for planetary research AN - 1832616219; 777411-44 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Draper, David S AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstractno 2013 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832616219?accountid=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=NASA+Johnson+Space+Center%27s+Planetary+sample+analysis+and+mission+science+%28PSAMS%29+Laboratory%3B+a+national+facility+for+planetary+research&rft.au=Draper%2C+David+S%3BAnonymous&rft.aulast=Draper&rft.aufirst=David&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Chiral analysis of rare and common sugar derivatives in carbonaceous chondrites AN - 1832616116; 777379-26 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cooper, George AU - Rios, A C AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstractno 2612 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832616116?accountid=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=Chiral+analysis+of+rare+and+common+sugar+derivatives+in+carbonaceous+chondrites&rft.au=Cooper%2C+George%3BRios%2C+A+C%3BAnonymous&rft.aulast=Cooper&rft.aufirst=George&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Implications for metallographic cooling rates, derived form fine-scale analytical traverses across kamacite, taenite,a nd tetrataenite in the bulter iron meteorite AN - 1832615980; 777411-38 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Jones, John H AU - Ross, D K AU - Chabot, N L AU - Keller, L P AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstractno 2432 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615980?accountid=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=Implications+for+metallographic+cooling+rates%2C+derived+form+fine-scale+analytical+traverses+across+kamacite%2C+taenite%2Ca+nd+tetrataenite+in+the+bulter+iron+meteorite&rft.au=Jones%2C+John+H%3BRoss%2C+D+K%3BChabot%2C+N+L%3BKeller%2C+L+P%3BAnonymous&rft.aulast=Jones&rft.aufirst=John&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Current status of NASA evolutionary xenon thruster - commerical (NEXT-C) AN - 1832615831; 777378-82 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Dolloff, M AU - Jackson, J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 1786 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832615831?accountid=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=Current+status+of+NASA+evolutionary+xenon+thruster+-+commerical+%28NEXT-C%29&rft.au=Dolloff%2C+M%3BJackson%2C+J%3BAnonymous&rft.aulast=Dolloff&rft.aufirst=M&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - An outdoor gamma ray and neutron instrumentation test facility at NASA/GSFC AN - 1832611931; 777372-47 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Parsons, Ann AU - Bodnarik, J AU - McClanahan, T AU - Nowicki, S AU - Schweitzer, J AU - Starr, R AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2476 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832611931?accountid=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=An+outdoor+gamma+ray+and+neutron+instrumentation+test+facility+at+NASA%2FGSFC&rft.au=Parsons%2C+Ann%3BBodnarik%2C+J%3BMcClanahan%2C+T%3BNowicki%2C+S%3BSchweitzer%2C+J%3BStarr%2C+R%3BAnonymous&rft.aulast=Parsons&rft.aufirst=Ann&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Asteroid threat assessement project - meteorite laboratory AN - 1832611828; 777372-37 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Bryson, Kathryn L AU - Ostrowski, D R AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2657 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832611828?accountid=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=Asteroid+threat+assessement+project+-+meteorite+laboratory&rft.au=Bryson%2C+Kathryn+L%3BOstrowski%2C+D+R%3BAnonymous&rft.aulast=Bryson&rft.aufirst=Kathryn&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Conversion and extraction of insoluble organic materials in meteorites AN - 1832611723; 777372-75 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Locke, Darren R AU - Burton, Aaron S AU - Niles, Paul B AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2730 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832611723?accountid=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=Conversion+and+extraction+of+insoluble+organic+materials+in+meteorites&rft.au=Locke%2C+Darren+R%3BBurton%2C+Aaron+S%3BNiles%2C+Paul+B%3BAnonymous&rft.aulast=Locke&rft.aufirst=Darren&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Geologic mapping of the Ac-H-5 Fejokoo Quadrangle of ceres from NASA's Dawn Mission AN - 1832609437; 776757-91 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Hughson, K H G AU - Russell, C T AU - Williams, D A AU - Buczkowski, D L AU - Mesxt, S C AU - Scully, J E C AU - Kneissl, T AU - Ruesch, O AU - Frigeri, A AU - Combe, J-P AU - Jaumann, R AU - Roatsch, T AU - Preusker, F AU - Platz, T AU - Nathues, A AU - Hoffmann, M AU - Schaefer, M AU - Park, R AU - Marchi, S AU - Raymond, C A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1556 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832609437?accountid=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=Geologic+mapping+of+the+Ac-H-5+Fejokoo+Quadrangle+of+ceres+from+NASA%27s+Dawn+Mission&rft.au=Hughson%2C+K+H+G%3BRussell%2C+C+T%3BWilliams%2C+D+A%3BBuczkowski%2C+D+L%3BMesxt%2C+S+C%3BScully%2C+J+E+C%3BKneissl%2C+T%3BRuesch%2C+O%3BFrigeri%2C+A%3BCombe%2C+J-P%3BJaumann%2C+R%3BRoatsch%2C+T%3BPreusker%2C+F%3BPlatz%2C+T%3BNathues%2C+A%3BHoffmann%2C+M%3BSchaefer%2C+M%3BPark%2C+R%3BMarchi%2C+S%3BRaymond%2C+C+A%3BAnonymous&rft.aulast=Hughson&rft.aufirst=K+H&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Geologic mapping of the AC-H-08 Nawish quadrangle of ceres from NASA's Dawn Mission AN - 1832609375; 776757-103 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Frigeri, A AU - De Sanctis, M C AU - Ammannito, E AU - Carrozzo, G AU - Williams, D AU - Mest, S AU - Buczkowski, D AU - Preusker, F AU - Jaumann, R AU - Roatsch, T AU - Scully, J AU - Kneissl, T AU - Raymond, C A AU - Russell, C T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2271 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832609375?accountid=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=Geologic+mapping+of+the+AC-H-08+Nawish+quadrangle+of+ceres+from+NASA%27s+Dawn+Mission&rft.au=Frigeri%2C+A%3BDe+Sanctis%2C+M+C%3BAmmannito%2C+E%3BCarrozzo%2C+G%3BWilliams%2C+D%3BMest%2C+S%3BBuczkowski%2C+D%3BPreusker%2C+F%3BJaumann%2C+R%3BRoatsch%2C+T%3BScully%2C+J%3BKneissl%2C+T%3BRaymond%2C+C+A%3BRussell%2C+C+T%3BAnonymous&rft.aulast=Frigeri&rft.aufirst=A&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The small satellites of Pluto AN - 1832609369; 776759-13 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Porter, S B AU - Showalter, M R AU - Weaver, H A AU - Spencer, J R AU - Binzel, R P AU - Hamilton, D P AU - Lauer, T R AU - Stryk, T AU - Buiel, M W AU - Buratti, B AU - Verbiscer, A J AU - Parker, A H AU - Singer, K AU - McKinnon, W AU - robbins, S AU - Moore, J AU - Grundy, W AU - Stern, S A AU - Young, L A AU - Olkin, C B AU - Ennico, K AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2390 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832609369?accountid=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=The+small+satellites+of+Pluto&rft.au=Porter%2C+S+B%3BShowalter%2C+M+R%3BWeaver%2C+H+A%3BSpencer%2C+J+R%3BBinzel%2C+R+P%3BHamilton%2C+D+P%3BLauer%2C+T+R%3BStryk%2C+T%3BBuiel%2C+M+W%3BBuratti%2C+B%3BVerbiscer%2C+A+J%3BParker%2C+A+H%3BSinger%2C+K%3BMcKinnon%2C+W%3Brobbins%2C+S%3BMoore%2C+J%3BGrundy%2C+W%3BStern%2C+S+A%3BYoung%2C+L+A%3BOlkin%2C+C+B%3BEnnico%2C+K%3BAnonymous&rft.aulast=Porter&rft.aufirst=S&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 13 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Highest spatial resolution new horizons leisa spectral-imagin scan of Pluto AN - 1832609342; 776758-81 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Grundy, W M AU - Binzel, R P AU - Cook, J C AU - Cruikshank, D P AU - Ore, C M Dalle AU - Earle, A M AU - Ennico, K AU - Jennings, D E AU - Howett, C J A AU - Linscott, I R AU - Lunsford, A W AU - Olkin, C B AU - Parker, A H AU - Parker, J Wm AU - Philippe, S AU - Protopapa, S AU - Quirico, E AU - Reuter, D C AU - Schmitt, B AU - Singer, K N AU - Spencer, J R AU - Stansberry, J A AU - Stern, S A AU - Tsang, C C C AU - Verbiscer, A J AU - Weaver, H A AU - Young, L A AU - Berry, K L AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2284 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832609342?accountid=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=Highest+spatial+resolution+new+horizons+leisa+spectral-imagin+scan+of+Pluto&rft.au=Grundy%2C+W+M%3BBinzel%2C+R+P%3BCook%2C+J+C%3BCruikshank%2C+D+P%3BOre%2C+C+M+Dalle%3BEarle%2C+A+M%3BEnnico%2C+K%3BJennings%2C+D+E%3BHowett%2C+C+J+A%3BLinscott%2C+I+R%3BLunsford%2C+A+W%3BOlkin%2C+C+B%3BParker%2C+A+H%3BParker%2C+J+Wm%3BPhilippe%2C+S%3BProtopapa%2C+S%3BQuirico%2C+E%3BReuter%2C+D+C%3BSchmitt%2C+B%3BSinger%2C+K+N%3BSpencer%2C+J+R%3BStansberry%2C+J+A%3BStern%2C+S+A%3BTsang%2C+C+C+C%3BVerbiscer%2C+A+J%3BWeaver%2C+H+A%3BYoung%2C+L+A%3BBerry%2C+K+L%3BAnonymous&rft.aulast=Grundy&rft.aufirst=W&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Surface compositions on Pluto and Charon AN - 1832609266; 776759-11 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Grundy, W M AU - Binzel, R P AU - Cook, J C AU - Cruikshank, D P AU - Ore, C M Dalle AU - Earle, A M AU - Ennico, K AU - Jennings, D E AU - Howett, C J A AU - Linscott, I R AU - Lunsford, A W AU - Olkin, C B AU - Parker, A H AU - Parker, J W AU - Philippe, S AU - Protopapa, S AU - Quirico, E AU - Reuter, D C AU - Schmitt, B AU - Singer, K N AU - Spencer, J R AU - Stansberry, J A AU - Stern, S A AU - Tsang, C C C AU - Verbiscer, A J AU - Weaver, H A AU - Young, L A AU - Berry, K L AU - Buratti, B J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1737 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832609266?accountid=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=Surface+compositions+on+Pluto+and+Charon&rft.au=Grundy%2C+W+M%3BBinzel%2C+R+P%3BCook%2C+J+C%3BCruikshank%2C+D+P%3BOre%2C+C+M+Dalle%3BEarle%2C+A+M%3BEnnico%2C+K%3BJennings%2C+D+E%3BHowett%2C+C+J+A%3BLinscott%2C+I+R%3BLunsford%2C+A+W%3BOlkin%2C+C+B%3BParker%2C+A+H%3BParker%2C+J+W%3BPhilippe%2C+S%3BProtopapa%2C+S%3BQuirico%2C+E%3BReuter%2C+D+C%3BSchmitt%2C+B%3BSinger%2C+K+N%3BSpencer%2C+J+R%3BStansberry%2C+J+A%3BStern%2C+S+A%3BTsang%2C+C+C+C%3BVerbiscer%2C+A+J%3BWeaver%2C+H+A%3BYoung%2C+L+A%3BBerry%2C+K+L%3BBuratti%2C+B+J%3BAnonymous&rft.aulast=Grundy&rft.aufirst=W&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Depth-diameter ratio of Corinto secondary crtaers AN - 1832609193; 776756-65 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Daubar, Ingrid J AU - Golombek, M P AU - McEwen, A S AU - Tornabene, L L AU - Calef, F J, III AU - Fergason, R AU - Kirk, R AU - Beyer, R AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2950 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832609193?accountid=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=Depth-diameter+ratio+of+Corinto+secondary+crtaers&rft.au=Daubar%2C+Ingrid+J%3BGolombek%2C+M+P%3BMcEwen%2C+A+S%3BTornabene%2C+L+L%3BCalef%2C+F+J%2C+III%3BFergason%2C+R%3BKirk%2C+R%3BBeyer%2C+R%3BAnonymous&rft.aulast=Daubar&rft.aufirst=Ingrid&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetry science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Partitioning of U, TH, and K between metal, sulfide and silicate; insights into the volatil content of Mercury AN - 1832609083; 776757-79 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Habermann, M AU - Boujibar, A AU - Righter, K AU - Danielson, L AU - Rapp, J AU - Righter, M AU - Pando, K AU - Ross, D K AU - Andreasen, R AU - Chidester, B AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2604 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832609083?accountid=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=Partitioning+of+U%2C+TH%2C+and+K+between+metal%2C+sulfide+and+silicate%3B+insights+into+the+volatil+content+of+Mercury&rft.au=Habermann%2C+M%3BBoujibar%2C+A%3BRighter%2C+K%3BDanielson%2C+L%3BRapp%2C+J%3BRighter%2C+M%3BPando%2C+K%3BRoss%2C+D+K%3BAndreasen%2C+R%3BChidester%2C+B%3BAnonymous&rft.aulast=Habermann&rft.aufirst=M&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The Pluto-Charon system revealed; geophysics, activity, and origins AN - 1832609022; 776759-14 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - McKinnon, William B AU - Moore, J M AU - Spencer, J R AU - Grundy, W M AU - Gladstone, G R AU - Nimmo, F AU - Schenk, P M AU - Howard, A D AU - Stern, S A AU - Weaver, H A AU - Young, L A AU - Olkin, C B AU - Ennico, K AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1995 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832609022?accountid=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=The+Pluto-Charon+system+revealed%3B+geophysics%2C+activity%2C+and+origins&rft.au=McKinnon%2C+William+B%3BMoore%2C+J+M%3BSpencer%2C+J+R%3BGrundy%2C+W+M%3BGladstone%2C+G+R%3BNimmo%2C+F%3BSchenk%2C+P+M%3BHoward%2C+A+D%3BStern%2C+S+A%3BWeaver%2C+H+A%3BYoung%2C+L+A%3BOlkin%2C+C+B%3BEnnico%2C+K%3BAnonymous&rft.aulast=McKinnon&rft.aufirst=William&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Geomorphological mapping of the encounter hemisphere on Pluto AN - 1832608960; 776758-43 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - White, Oliver L AU - Stern, S A AU - Weaver, H A AU - Olkin, C B AU - Ennico, K AU - Young, L A AU - Moore, J M AU - Cheng, A F AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2479 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832608960?accountid=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=Geomorphological+mapping+of+the+encounter+hemisphere+on+Pluto&rft.au=White%2C+Oliver+L%3BStern%2C+S+A%3BWeaver%2C+H+A%3BOlkin%2C+C+B%3BEnnico%2C+K%3BYoung%2C+L+A%3BMoore%2C+J+M%3BCheng%2C+A+F%3BAnonymous&rft.aulast=White&rft.aufirst=Oliver&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Ionizing radiation on the surface of Europa; implications for the search for evidence of life AN - 1832607922; 777379-33 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Teodoro, Luis F A AU - Davila, A F AU - McKay, C P AU - Dartnell, L R AU - Elphic, R C AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstractno 2601 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832607922?accountid=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=Ionizing+radiation+on+the+surface+of+Europa%3B+implications+for+the+search+for+evidence+of+life&rft.au=Teodoro%2C+Luis+F+A%3BDavila%2C+A+F%3BMcKay%2C+C+P%3BDartnell%2C+L+R%3BElphic%2C+R+C%3BAnonymous&rft.aulast=Teodoro&rft.aufirst=Luis+F&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Mineral structure of black talc from Guangfeng County, China: implications to its formation and material properties AN - 1832607123; 782763-40 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Li, Chengxiang AU - Wang, Rucheng AU - Xu, Huifang AU - Lu, Xiancai AU - Konishi, H Iromi AU - He, Kun AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 1740 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832607123?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Mineral+structure+of+black+talc+from+Guangfeng+County%2C+China%3A+implications+to+its+formation+and+material+properties&rft.au=Li%2C+Chengxiang%3BWang%2C+Rucheng%3BXu%2C+Huifang%3BLu%2C+Xiancai%3BKonishi%2C+H+Iromi%3BHe%2C+Kun%3BAnonymous&rft.aulast=Li&rft.aufirst=Chengxiang&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=1740&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/1740.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - Provenance and source rock weathering of the 2.7 Ga shallow- and deep-facies black shales from Pilbara, Western Australia AN - 1832607104; 782762-35 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Kurihara, E AU - Yamaguchi, K E AU - Abe, G AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 1635 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832607104?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=Provenance+and+source+rock+weathering+of+the+2.7+Ga+shallow-+and+deep-facies+black+shales+from+Pilbara%2C+Western+Australia&rft.au=Kurihara%2C+E%3BYamaguchi%2C+K+E%3BAbe%2C+G%3BAnonymous&rft.aulast=Kurihara&rft.aufirst=E&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=1635&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/1635.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 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 - A quantitative phase map of nanometeric Iron(III) oxide AN - 1832606831; 782763-13 JF - V.M. Goldschmidt Conference - Program and Abstracts AU - Lee, Seungyeol AU - Xu, Huifang AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - 1713 PB - Goldschmidt Conference, [varies] VL - 26 SN - 1042-7287, 1042-7287 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832606831?accountid=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=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.atitle=A+quantitative+phase+map+of+nanometeric+Iron%28III%29+oxide&rft.au=Lee%2C+Seungyeol%3BXu%2C+Huifang%3BAnonymous&rft.aulast=Lee&rft.aufirst=Seungyeol&rft.date=2016-01-01&rft.volume=26&rft.issue=&rft.spage=1713&rft.isbn=&rft.btitle=&rft.title=V.M.+Goldschmidt+Conference+-+Program+and+Abstracts&rft.issn=10427287&rft_id=info:doi/ L2 - http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/1713.pdf LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2016 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Last updated - 2017-01-24 ER - TY - JOUR T1 - Carbon detection with Chemcam; labortory studies and Mars results AN - 1832606774; 777378-95 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Beck, P AU - Forni, O AU - Lasue, J AU - Lewin, E AU - Cousin, A AU - Maurice, S AU - Meslin, P-Y AU - Rapin, W AU - Gasnault, O AU - Wiens, R C AU - Mangold, N AU - Sautter, V AU - Coll, P AU - Szopa, C AU - Dequaire, T AU - Blank, J G AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 1826 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832606774?accountid=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=Carbon+detection+with+Chemcam%3B+labortory+studies+and+Mars+results&rft.au=Beck%2C+P%3BForni%2C+O%3BLasue%2C+J%3BLewin%2C+E%3BCousin%2C+A%3BMaurice%2C+S%3BMeslin%2C+P-Y%3BRapin%2C+W%3BGasnault%2C+O%3BWiens%2C+R+C%3BMangold%2C+N%3BSautter%2C+V%3BColl%2C+P%3BSzopa%2C+C%3BDequaire%2C+T%3BBlank%2C+J+G%3BAnonymous&rft.aulast=Beck&rft.aufirst=P&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Homer; a smallsat gorund penetrating radar sounding fleet to map planetary surfaces at high resolution AN - 1832606763; 777378-88 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Persaud, D M AU - Wu, T S AU - Tarnas, J AU - Preudhomme, M AU - Jurg, M AU - Chalumeau, C AU - Buckley, H AU - Lombard-Poirot, N AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no 3051 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832606763?accountid=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=Homer%3B+a+smallsat+gorund+penetrating+radar+sounding+fleet+to+map+planetary+surfaces+at+high+resolution&rft.au=Persaud%2C+D+M%3BWu%2C+T+S%3BTarnas%2C+J%3BPreudhomme%2C+M%3BJurg%2C+M%3BChalumeau%2C+C%3BBuckley%2C+H%3BLombard-Poirot%2C+N%3BAnonymous&rft.aulast=Persaud&rft.aufirst=D&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Amino acids in he asteroidal water-bearing salt crystals hosted in the zag meteorite AN - 1832606756; 777379-24 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Chan, Q H S AU - Zolensky, M E AU - Burton, A S AU - Locke, D R AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstractno 1402 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832606756?accountid=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=Amino+acids+in+he+asteroidal+water-bearing+salt+crystals+hosted+in+the+zag+meteorite&rft.au=Chan%2C+Q+H+S%3BZolensky%2C+M+E%3BBurton%2C+A+S%3BLocke%2C+D+R%3BAnonymous&rft.aulast=Chan&rft.aufirst=Q+H&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Davinci; deep atmopshere Venus investigation of noble gases, chemistry and imaging AN - 1832606075; 777371-68 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Glaze, Lori S AU - Garvin, J B AU - Johnson, N M AU - Atkinson, D AU - Atreya, S AU - Blacksberg, J AU - Brinckerhoff, W AU - Campbell, B AU - Crisp, D AU - Forget, F AU - Gilmore, M AU - Grinspoon, D AU - Izenberg, N AU - Mahaffy, P R AU - Kiefer, W AU - Lorenz, R AU - Pavlov, A A AU - Ravine, M AU - Trainer, M G AU - Webster, C AU - Zahnle, K AU - Zolotov, M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1560 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832606075?accountid=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=Davinci%3B+deep+atmopshere+Venus+investigation+of+noble+gases%2C+chemistry+and+imaging&rft.au=Glaze%2C+Lori+S%3BGarvin%2C+J+B%3BJohnson%2C+N+M%3BAtkinson%2C+D%3BAtreya%2C+S%3BBlacksberg%2C+J%3BBrinckerhoff%2C+W%3BCampbell%2C+B%3BCrisp%2C+D%3BForget%2C+F%3BGilmore%2C+M%3BGrinspoon%2C+D%3BIzenberg%2C+N%3BMahaffy%2C+P+R%3BKiefer%2C+W%3BLorenz%2C+R%3BPavlov%2C+A+A%3BRavine%2C+M%3BTrainer%2C+M+G%3BWebster%2C+C%3BZahnle%2C+K%3BZolotov%2C+M%3BAnonymous&rft.aulast=Glaze&rft.aufirst=Lori&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The gao-guenie (Burkin a faso) impact melt breccia - a piece of an impact melt injection dike on a h-chondrite asteroid AN - 1832606022; 777373-76 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Schmieder, Martin AU - Kring, David A AU - Swindle, Timothy AU - Carter-Bond, Jade C AU - Moore, Carleton B AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1239 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832606022?accountid=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=The+gao-guenie+%28Burkin+a+faso%29+impact+melt+breccia+-+a+piece+of+an+impact+melt+injection+dike+on+a+h-chondrite+asteroid&rft.au=Schmieder%2C+Martin%3BKring%2C+David+A%3BSwindle%2C+Timothy%3BCarter-Bond%2C+Jade+C%3BMoore%2C+Carleton+B%3BAnonymous&rft.aulast=Schmieder&rft.aufirst=Martin&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Effect of shock impacts on the survivability of RNA and protein monomers AN - 1832605927; 777379-23 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Ertem, G AU - Cooper, G AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstractno 2653 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605927?accountid=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=Effect+of+shock+impacts+on+the+survivability+of+RNA+and+protein+monomers&rft.au=Ertem%2C+G%3BCooper%2C+G%3BAnonymous&rft.aulast=Ertem&rft.aufirst=G&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - Number of references - 9 N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Chemcial evidence for an episode of acidic leaching at the base of Mount Sharp, Gale Crater, Mars an seen by the APXS AN - 1832605857; 777371-56 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Gellert, R AU - Berger, J A AU - Boyd, N AU - Campbell, J L AU - Desouza, E D AU - Ming, D W AU - Morris, R V AU - Perrett, G M AU - Schmidt, M AU - Thompson, L AU - VanBommel, S AU - Yen, A S AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2368 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605857?accountid=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=Chemcial+evidence+for+an+episode+of+acidic+leaching+at+the+base+of+Mount+Sharp%2C+Gale+Crater%2C+Mars+an+seen+by+the+APXS&rft.au=Gellert%2C+R%3BBerger%2C+J+A%3BBoyd%2C+N%3BCampbell%2C+J+L%3BDesouza%2C+E+D%3BMing%2C+D+W%3BMorris%2C+R+V%3BPerrett%2C+G+M%3BSchmidt%2C+M%3BThompson%2C+L%3BVanBommel%2C+S%3BYen%2C+A+S%3BAnonymous&rft.aulast=Gellert&rft.aufirst=R&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Dating how ardite melt claste; evidence for an extended vestan bombardment? AN - 1832605840; 777375-2 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cartwright, Julie A AU - Hodges, K V AU - Wadhwa, M AU - Mittlefehldt, D W AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2865 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605840?accountid=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=Dating+how+ardite+melt+claste%3B+evidence+for+an+extended+vestan+bombardment%3F&rft.au=Cartwright%2C+Julie+A%3BHodges%2C+K+V%3BWadhwa%2C+M%3BMittlefehldt%2C+D+W%3BAnonymous&rft.aulast=Cartwright&rft.aufirst=Julie&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The viscosity of planetary tholeiitic melts; a configurational entropy model AN - 1832605835; 777375-60 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Sehlke, A AU - Whittington, A G AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1957 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605835?accountid=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=The+viscosity+of+planetary+tholeiitic+melts%3B+a+configurational+entropy+model&rft.au=Sehlke%2C+A%3BWhittington%2C+A+G%3BAnonymous&rft.aulast=Sehlke&rft.aufirst=A&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - the MSFC noble gas research laboratory (MNGRL), a NASA investigator facility AN - 1832605722; 777372-30 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Cohen, Barbara A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2760 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605722?accountid=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=the+MSFC+noble+gas+research+laboratory+%28MNGRL%29%2C+a+NASA+investigator+facility&rft.au=Cohen%2C+Barbara+A%3BAnonymous&rft.aulast=Cohen&rft.aufirst=Barbara&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Insights into the aqueous history of Mars from acid-sulfte weathered phyllosilicates AN - 1832605700; 777371-28 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Craig, P I AU - Ming, D W AU - Rampe, D W AU - Rampe, E B AU - Morris, R V AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2434 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605700?accountid=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=Insights+into+the+aqueous+history+of+Mars+from+acid-sulfte+weathered+phyllosilicates&rft.au=Craig%2C+P+I%3BMing%2C+D+W%3BRampe%2C+D+W%3BRampe%2C+E+B%3BMorris%2C+R+V%3BAnonymous&rft.aulast=Craig&rft.aufirst=P&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Research objectives for human missios in the proving ground of CIS-lunar space AN - 1832605696; 777371-54 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Niles, Paul B AU - Eppler, D B AU - Kennedy, K J AU - Lewis, R AU - Spann, J F AU - Sullivan, T A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2734 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605696?accountid=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=Research+objectives+for+human+missios+in+the+proving+ground+of+CIS-lunar+space&rft.au=Niles%2C+Paul+B%3BEppler%2C+D+B%3BKennedy%2C+K+J%3BLewis%2C+R%3BSpann%2C+J+F%3BSullivan%2C+T+A%3BAnonymous&rft.aulast=Niles&rft.aufirst=Paul&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Stability of pyrite under Venusian surfce conditions AN - 1832605663; 777376-39 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Port, S T AU - Kohler, E AU - Craig, P I AU - Chevrier, V AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2144 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605663?accountid=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=Stability+of+pyrite+under+Venusian+surfce+conditions&rft.au=Port%2C+S+T%3BKohler%2C+E%3BCraig%2C+P+I%3BChevrier%2C+V%3BAnonymous&rft.aulast=Port&rft.aufirst=S&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Basalt lava flow texture identification at different data resolutions AN - 1832605607; 777375-67 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Mallonee, H C AU - Nawotniak, S E Kobs AU - Hughes, S S AU - Neish, C AU - Downs, C AU - Delparte, D AU - Lim, D S S AU - Heldmann, J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2403 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605607?accountid=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=Basalt+lava+flow+texture+identification+at+different+data+resolutions&rft.au=Mallonee%2C+H+C%3BNawotniak%2C+S+E+Kobs%3BHughes%2C+S+S%3BNeish%2C+C%3BDowns%2C+C%3BDelparte%2C+D%3BLim%2C+D+S+S%3BHeldmann%2C+J%3BAnonymous&rft.aulast=Mallonee&rft.aufirst=H&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Tsunami waves extensively resurfaced the shorelines of an early martian ocean AN - 1832605557; 777375-45 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Rodriguez, J A P AU - Fairen, A G AU - Linares, R AU - Zarroca, M AU - Platz, T AU - Komatsu, G AU - Kargel, J S AU - Gulick, V AU - Jianguo, Y AU - Higuchi, K AU - Miyamoto, H AU - Baker, V r AU - Glines, N AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1680 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605557?accountid=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=Tsunami+waves+extensively+resurfaced+the+shorelines+of+an+early+martian+ocean&rft.au=Rodriguez%2C+J+A+P%3BFairen%2C+A+G%3BLinares%2C+R%3BZarroca%2C+M%3BPlatz%2C+T%3BKomatsu%2C+G%3BKargel%2C+J+S%3BGulick%2C+V%3BJianguo%2C+Y%3BHiguchi%2C+K%3BMiyamoto%2C+H%3BBaker%2C+V+r%3BGlines%2C+N%3BAnonymous&rft.aulast=Rodriguez&rft.aufirst=J+A&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Curating NASA's past, present, and future extraterrestrial collections AN - 1832605537; 777372-35 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - McCubbin, Francis M AU - Allton, J H AU - Evans, C A AU - Fries, M D AU - Nakamura-Messenger, K AU - Righter, K AU - Zeigler, R A AU - Zolensky, M AU - Stansbery, E K AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2668 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605537?accountid=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=Curating+NASA%27s+past%2C+present%2C+and+future+extraterrestrial+collections&rft.au=McCubbin%2C+Francis+M%3BAllton%2C+J+H%3BEvans%2C+C+A%3BFries%2C+M+D%3BNakamura-Messenger%2C+K%3BRighter%2C+K%3BZeigler%2C+R+A%3BZolensky%2C+M%3BStansbery%2C+E+K%3BAnonymous&rft.aulast=McCubbin&rft.aufirst=Francis&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Haughton-Mars project research station (HMPRS), Devon Island, high arctic; a planetary science and exploration field research facility AN - 1832605533; 777372-49 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Lee, Pascal AU - Braham, Stephen AU - Fong, Terry AU - Glass, Brian J AU - Hoffman, Stephen J AU - Hoftun, Christopher AU - Johansen, Brage AU - Lorber, Kira AU - McKay, Christopher P AU - Mueller, Robert AU - Schutt, John W AU - Sims, Michael AU - Weaver, Jesse T AU - Zacny, Kris AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no3073 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605533?accountid=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=Haughton-Mars+project+research+station+%28HMPRS%29%2C+Devon+Island%2C+high+arctic%3B+a+planetary+science+and+exploration+field+research+facility&rft.au=Lee%2C+Pascal%3BBraham%2C+Stephen%3BFong%2C+Terry%3BGlass%2C+Brian+J%3BHoffman%2C+Stephen+J%3BHoftun%2C+Christopher%3BJohansen%2C+Brage%3BLorber%2C+Kira%3BMcKay%2C+Christopher+P%3BMueller%2C+Robert%3BSchutt%2C+John+W%3BSims%2C+Michael%3BWeaver%2C+Jesse+T%3BZacny%2C+Kris%3BAnonymous&rft.aulast=Lee&rft.aufirst=Pascal&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Mapping fresh lava flows with multi-wavelength radar imagery in support of planetary analogue studies AN - 1832605512; 777375-66 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Zanetti, Michael AU - Neish, C AU - Choe, B-H AU - Heldmann, J L AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2429 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605512?accountid=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=Mapping+fresh+lava+flows+with+multi-wavelength+radar+imagery+in+support+of+planetary+analogue+studies&rft.au=Zanetti%2C+Michael%3BNeish%2C+C%3BChoe%2C+B-H%3BHeldmann%2C+J+L%3BAnonymous&rft.aulast=Zanetti&rft.aufirst=Michael&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Organic analysis in the Miller Range 090657 CR2 chondrite; part 3 C and N isotopic imaging AN - 1832605511; 777373-72 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Messenger, S AU - Nakamura-Messenger, K AU - Elsila, J E AU - Berger, E L AU - Burton, A S AU - Clemett, S J AU - Cao, T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2447 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605511?accountid=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=Organic+analysis+in+the+Miller+Range+090657+CR2+chondrite%3B+part+3+C+and+N+isotopic+imaging&rft.au=Messenger%2C+S%3BNakamura-Messenger%2C+K%3BElsila%2C+J+E%3BBerger%2C+E+L%3BBurton%2C+A+S%3BClemett%2C+S+J%3BCao%2C+T%3BAnonymous&rft.aulast=Messenger&rft.aufirst=S&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Investigating the origin and evolution of Venus with in situ mass spectrometry AN - 1832605500; 777376-41 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Trainer, Melissa AU - Mahaffy, P R AU - Brincekerhoff, W B AU - Johnson, N M AU - Glaze, L S AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1741 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605500?accountid=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=Investigating+the+origin+and+evolution+of+Venus+with+in+situ+mass+spectrometry&rft.au=Trainer%2C+Melissa%3BMahaffy%2C+P+R%3BBrincekerhoff%2C+W+B%3BJohnson%2C+N+M%3BGlaze%2C+L+S%3BAnonymous&rft.aulast=Trainer&rft.aufirst=Melissa&rft.date=2016-01-01&rft.volume=47&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 - 47th lunr and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Theo mission concept; testing the habitability of enceladus's ocean AN - 1832605489; 777371-70 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - John, K K AU - Wynne, J J AU - Powell, K E AU - MacKenzie, S M AU - Caswell, T AU - Stavros, E N AU - Crismani, M AU - DeBruin, K AU - Dhaliwal, J AU - Hofgartner, J AU - Krishnamurthy, A AU - Phillips-Lander, C AU - Leung, C AU - O'rourke, J AU - Petro, E AU - Phan, S AU - Steuer, C AU - Sun, V AU - Budney, C AU - Mitchell, K AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1277 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605489?accountid=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=Theo+mission+concept%3B+testing+the+habitability+of+enceladus%27s+ocean&rft.au=John%2C+K+K%3BWynne%2C+J+J%3BPowell%2C+K+E%3BMacKenzie%2C+S+M%3BCaswell%2C+T%3BStavros%2C+E+N%3BCrismani%2C+M%3BDeBruin%2C+K%3BDhaliwal%2C+J%3BHofgartner%2C+J%3BKrishnamurthy%2C+A%3BPhillips-Lander%2C+C%3BLeung%2C+C%3BO%27rourke%2C+J%3BPetro%2C+E%3BPhan%2C+S%3BSteuer%2C+C%3BSun%2C+V%3BBudney%2C+C%3BMitchell%2C+K%3BAnonymous&rft.aulast=John&rft.aufirst=K&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The diversity of meteoritic amino acids; variations in abundance and enantiomeric compositon and implications for exobiology AN - 1832605456; 777372-84 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Elsila, J E AU - Burotn, A S AU - Aponte, J C AU - Blackmond, D G AU - Dworkin, J P AU - Glavin, D P AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1533 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605456?accountid=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=The+diversity+of+meteoritic+amino+acids%3B+variations+in+abundance+and+enantiomeric+compositon+and+implications+for+exobiology&rft.au=Elsila%2C+J+E%3BBurotn%2C+A+S%3BAponte%2C+J+C%3BBlackmond%2C+D+G%3BDworkin%2C+J+P%3BGlavin%2C+D+P%3BAnonymous&rft.aulast=Elsila&rft.aufirst=J&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Lunar ice cube mission; determing lunar water dynamics with a first generation deep space cubesat AN - 1832605205; 777371-60 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Clark, P E AU - Malphrus, Ben AU - Brown, Kevin AU - Reuter, Dennis AU - MacDowall, Robert AU - Folta, David AU - Mandell, Avi AU - Hurford, Terry AU - Brambora, Cliff AU - Patel, Deepak AU - Banks, Stuart AU - Farrell, William AU - Petro, Noah AU - Tsay, Michael AU - Hruby, V AU - Brandon, Carl AU - Chapin, Peter AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1043 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605205?accountid=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=Lunar+ice+cube+mission%3B+determing+lunar+water+dynamics+with+a+first+generation+deep+space+cubesat&rft.au=Clark%2C+P+E%3BMalphrus%2C+Ben%3BBrown%2C+Kevin%3BReuter%2C+Dennis%3BMacDowall%2C+Robert%3BFolta%2C+David%3BMandell%2C+Avi%3BHurford%2C+Terry%3BBrambora%2C+Cliff%3BPatel%2C+Deepak%3BBanks%2C+Stuart%3BFarrell%2C+William%3BPetro%2C+Noah%3BTsay%2C+Michael%3BHruby%2C+V%3BBrandon%2C+Carl%3BChapin%2C+Peter%3BAnonymous&rft.aulast=Clark&rft.aufirst=P&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Detection of a resolved trojan binary AN - 1832605191; 777374-15 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Noll, Keith S AU - Grundy, W M AU - Ryan, E L AU - Benecchi, S D AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2632 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605191?accountid=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=Detection+of+a+resolved+trojan+binary&rft.au=Noll%2C+Keith+S%3BGrundy%2C+W+M%3BRyan%2C+E+L%3BBenecchi%2C+S+D%3BAnonymous&rft.aulast=Noll&rft.aufirst=Keith&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science confernece N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The lunar polr hydrogen mapper (Lunah-map) Cubsat mission AN - 1832605007; 777371-75 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Hardgrove, C AU - Bell, J AU - Starr, R AU - Colaprete, T AU - Robinson, M AU - Drake, D AU - Lazbin, L AU - West, G AU - Johnson, E AU - Christian, J AU - Genova, A AU - Dunham, D AU - Williams, B AU - Nelson, D AU - Babuscia, A AU - Scowen, P AU - Cheung, K M AU - Klesh, A AU - Kerner, H AU - Deran, A AU - Amzler, R J AU - Burnham, Z AU - Lightholder, J AU - Wren, P AU - Godber, A AU - Beasley, M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2654 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832605007?accountid=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=The+lunar+polr+hydrogen+mapper+%28Lunah-map%29+Cubsat+mission&rft.au=Hardgrove%2C+C%3BBell%2C+J%3BStarr%2C+R%3BColaprete%2C+T%3BRobinson%2C+M%3BDrake%2C+D%3BLazbin%2C+L%3BWest%2C+G%3BJohnson%2C+E%3BChristian%2C+J%3BGenova%2C+A%3BDunham%2C+D%3BWilliams%2C+B%3BNelson%2C+D%3BBabuscia%2C+A%3BScowen%2C+P%3BCheung%2C+K+M%3BKlesh%2C+A%3BKerner%2C+H%3BDeran%2C+A%3BAmzler%2C+R+J%3BBurnham%2C+Z%3BLightholder%2C+J%3BWren%2C+P%3BGodber%2C+A%3BBeasley%2C+M%3BAnonymous&rft.aulast=Hardgrove&rft.aufirst=C&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - (super 40) Ar/ (super 39) Ar ages of carbonaceous xenoliths in hed meteorites Northwest Africa 6475 and Northwest Africa 6695 AN - 1832604918; 777375-1 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Turrin, B D AU - Lindsay, F N AU - Park, J AU - Herzog, G F AU - Delaney, J S AU - Swisher, C C, III AU - Johnson, J AU - Zolensky, M AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1592 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832604918?accountid=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=%28super+40%29+Ar%2F+%28super+39%29+Ar+ages+of+carbonaceous+xenoliths+in+hed+meteorites+Northwest+Africa+6475+and+Northwest+Africa+6695&rft.au=Turrin%2C+B+D%3BLindsay%2C+F+N%3BPark%2C+J%3BHerzog%2C+G+F%3BDelaney%2C+J+S%3BSwisher%2C+C+C%2C+III%3BJohnson%2C+J%3BZolensky%2C+M%3BAnonymous&rft.aulast=Turrin&rft.aufirst=B&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The Cr redox record of fO (sub 2) variation in angrites; Evidence for redox conditions of angrite petrogenesis and parent body AN - 1832602942; 777411-35 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Shearer, Charles K AU - Bell, Aaron S AU - Burger, Paul V AU - Papike, James J AU - Jones, John AU - Le, Loan AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstractno 1370 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832602942?accountid=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=The+Cr+redox+record+of+fO+%28sub+2%29+variation+in+angrites%3B+Evidence+for+redox+conditions+of+angrite+petrogenesis+and+parent+body&rft.au=Shearer%2C+Charles+K%3BBell%2C+Aaron+S%3BBurger%2C+Paul+V%3BPapike%2C+James+J%3BJones%2C+John%3BLe%2C+Loan%3BAnonymous&rft.aulast=Shearer&rft.aufirst=Charles&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Biosignature explorer for Europa (BEE) probe - the concept for directly searching for life evidence on Europa at lowre cost and risk AN - 1832602147; 777371-39 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Amato, Michael J AU - Spidaliere, P AU - Mahaffy, P AU - Schiff, C AU - Hsu, O AU - Hurford, T AU - Benha, M AU - Brinckerhoff, W AU - Garvin, J AU - Downing, J AU - Errigo, T AU - Glavin, D AU - Sarantos, M AU - Lorenz, R AU - Hoehler, T AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2602 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832602147?accountid=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=Biosignature+explorer+for+Europa+%28BEE%29+probe+-+the+concept+for+directly+searching+for+life+evidence+on+Europa+at+lowre+cost+and+risk&rft.au=Amato%2C+Michael+J%3BSpidaliere%2C+P%3BMahaffy%2C+P%3BSchiff%2C+C%3BHsu%2C+O%3BHurford%2C+T%3BBenha%2C+M%3BBrinckerhoff%2C+W%3BGarvin%2C+J%3BDowning%2C+J%3BErrigo%2C+T%3BGlavin%2C+D%3BSarantos%2C+M%3BLorenz%2C+R%3BHoehler%2C+T%3BAnonymous&rft.aulast=Amato&rft.aufirst=Michael&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Precision oxygen isotope measurements of two C-rich hydrated interplanetary dust particles AN - 1832601947; 777411-24 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Snead, C J AU - Keller, L P AU - McKeegan, K D AU - Messenger, S AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstractno 2850 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832601947?accountid=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=Precision+oxygen+isotope+measurements+of+two+C-rich+hydrated+interplanetary+dust+particles&rft.au=Snead%2C+C+J%3BKeller%2C+L+P%3BMcKeegan%2C+K+D%3BMessenger%2C+S%3BAnonymous&rft.aulast=Snead&rft.aufirst=C&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Measurements of coma physics and ice composition in comet D/2012 S1 (ISON) to small heliocentric distances as revealed at infrared wavelengths AN - 1832601692; 777374-74 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - DiSanti, M A AU - Bonev, B P AU - Gibb, E L AU - Paganini, L AU - Villanueva, G L AU - Mumma, M J AU - Keane, J V AU - Blake, G A AU - Dello Russo, N AU - Meeche, K J AU - Vervack, R J, Jr AU - McKay, A J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2149 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832601692?accountid=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=Measurements+of+coma+physics+and+ice+composition+in+comet+D%2F2012+S1+%28ISON%29+to+small+heliocentric+distances+as+revealed+at+infrared+wavelengths&rft.au=DiSanti%2C+M+A%3BBonev%2C+B+P%3BGibb%2C+E+L%3BPaganini%2C+L%3BVillanueva%2C+G+L%3BMumma%2C+M+J%3BKeane%2C+J+V%3BBlake%2C+G+A%3BDello+Russo%2C+N%3BMeeche%2C+K+J%3BVervack%2C+R+J%2C+Jr%3BMcKay%2C+A+J%3BAnonymous&rft.aulast=DiSanti&rft.aufirst=M&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science confernece N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Evidence for mixed magnesium and iron carbonates in the Comanche outcrops of the Columbia Hills, Mars AN - 1832601676; 777372-14 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Ruff, Steve W AU - Morris, R V AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2896 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832601676?accountid=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=Evidence+for+mixed+magnesium+and+iron+carbonates+in+the+Comanche+outcrops+of+the+Columbia+Hills%2C+Mars&rft.au=Ruff%2C+Steve+W%3BMorris%2C+R+V%3BAnonymous&rft.aulast=Ruff&rft.aufirst=Steve&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Building a biosignature rock sample library and developing automated classifiers AN - 1832601172; 777372-73 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Gulick, Virginia C AU - Ishikawa, Sascha T AU - Freeman, Patrick M AU - Johnsen, Timothy AU - Angell, Jason AU - Morkner, Paige AU - Bello, Job AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2825 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832601172?accountid=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=Building+a+biosignature+rock+sample+library+and+developing+automated+classifiers&rft.au=Gulick%2C+Virginia+C%3BIshikawa%2C+Sascha+T%3BFreeman%2C+Patrick+M%3BJohnsen%2C+Timothy%3BAngell%2C+Jason%3BMorkner%2C+Paige%3BBello%2C+Job%3BAnonymous&rft.aulast=Gulick&rft.aufirst=Virginia&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Lunar flashlight; illuminating the lunar South Pole AN - 1832601089; 777371-29 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - hayne, P O AU - Greenhagen, B T AU - Paige, D A AU - Camacho, J M AU - Cohen, B A AU - Seller, G AU - Reiter, J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2761 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832601089?accountid=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=Lunar+flashlight%3B+illuminating+the+lunar+South+Pole&rft.au=hayne%2C+P+O%3BGreenhagen%2C+B+T%3BPaige%2C+D+A%3BCamacho%2C+J+M%3BCohen%2C+B+A%3BSeller%2C+G%3BReiter%2C+J%3BAnonymous&rft.aulast=hayne&rft.aufirst=P&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - the diversity of anomalous HEDs; isotopic constraints on the connection of EET 92023, GRA 98098, and DHOFAR 700 with vesta AN - 1832600806; 777411-29 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Sanborn, M E AU - Yin, Q-Z AU - Mittlefehldt, D W AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstractno 2256 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832600806?accountid=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=the+diversity+of+anomalous+HEDs%3B+isotopic+constraints+on+the+connection+of+EET+92023%2C+GRA+98098%2C+and+DHOFAR+700+with+vesta&rft.au=Sanborn%2C+M+E%3BYin%2C+Q-Z%3BMittlefehldt%2C+D+W%3BAnonymous&rft.aulast=Sanborn&rft.aufirst=M&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Catching constraints on the parent body genesis of mesosiderites and a possible link to hed (howardite-eucrite-diogenite) meteorites - a new hope? AN - 1832600365; 777375-32 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Baecker, B AU - Cohen, B A AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no2179 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832600365?accountid=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=Catching+constraints+on+the+parent+body+genesis+of+mesosiderites+and+a+possible+link+to+hed+%28howardite-eucrite-diogenite%29+meteorites+-+a+new+hope%3F&rft.au=Baecker%2C+B%3BCohen%2C+B+A%3BAnonymous&rft.aulast=Baecker&rft.aufirst=B&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - The DAVINCI Probe descent module and engineering development unit testing AN - 1832600304; 777371-7 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Amato, Michael J AU - Generie, J AU - Glaze, L AU - Robinson, D W AU - Mahaffy, P AU - Garvin, J AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no. 2566 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 KW - terrestrial planets KW - planets KW - DAVINCI Probe KW - Deep Atmosphere Venus Investigation of Noble gases, Chemistry, and Imaging Venus Mission KW - Venus KW - atmosphere KW - testing KW - concepts KW - instruments KW - design KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832600304?accountid=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=The+DAVINCI+Probe+descent+module+and+engineering+development+unit+testing&rft.au=Amato%2C+Michael+J%3BGenerie%2C+J%3BGlaze%2C+L%3BRobinson%2C+D+W%3BMahaffy%2C+P%3BGarvin%2C+J%3BAnonymous&rft.aulast=Amato&rft.aufirst=Michael&rft.date=2016-01-01&rft.volume=47&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.hou.usra.edu/meetings/lpsc2016/pdf/2566.pdf LA - English DB - GeoRef N1 - Conference title - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmosphere; concepts; DAVINCI Probe; Deep Atmosphere Venus Investigation of Noble gases, Chemistry, and Imaging Venus Mission; design; instruments; planets; terrestrial planets; testing; Venus ER - TY - JOUR T1 - Surface and subsurface characteristics of Western Elysium Planitia, Mars AN - 1832600068; 777371-63 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Golombek, M AU - Warner, N AU - Daubar, I J AU - Kipp, D AU - Fergason, R AU - Kirk, R AU - Huertas, A AU - Beyer, R AU - Piqueux, S AU - Putzig, N E AU - Calef, F AU - Banerdt, W B AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - Abstract no1572 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832600068?accountid=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=Surface+and+subsurface+characteristics+of+Western+Elysium+Planitia%2C+Mars&rft.au=Golombek%2C+M%3BWarner%2C+N%3BDaubar%2C+I+J%3BKipp%2C+D%3BFergason%2C+R%3BKirk%2C+R%3BHuertas%2C+A%3BBeyer%2C+R%3BPiqueux%2C+S%3BPutzig%2C+N+E%3BCalef%2C+F%3BBanerdt%2C+W+B%3BAnonymous&rft.aulast=Golombek&rft.aufirst=M&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. 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N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - A new method - potentially suitable for spacecraft instrumentation for dating recent volcanism AN - 1832599956; 777379-2 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Sears, Derek W G AU - Hughes, S S AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 EP - abstractno 1369 PB - Lunar and Planetary Science Conference, Houston, TX VL - 47 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832599956?accountid=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=A+new+method+-+potentially+suitable+for+spacecraft+instrumentation+for+dating+recent+volcanism&rft.au=Sears%2C+Derek+W+G%3BHughes%2C+S+S%3BAnonymous&rft.aulast=Sears&rft.aufirst=Derek+W&rft.date=2016-01-01&rft.volume=47&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 - 47th lunar and planetary science conference N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - PubXState - TX N1 - Last updated - 2017-01-24 N1 - CODEN - #02179 ER - TY - JOUR T1 - Microorganisms, organic carbon, and their relationship with oxidant activity in hyper-arid Mars-like soils; implications for soil habitability AN - 1824216271; 2016-083582 AB - Soil samples from the hyper-arid region in the Atacama Desert in Southern Peru (La Joya Desert) were analyzed for total and labile organic carbon (TOC and LOC), phospholipid fatty acids (PLFA), quantitative real time polymerase chain reaction (qRT-PCR), 4',6-diamidino-2-phenylindole (DAPI)-fluorescent microscopy, culturable microorganisms, and oxidant activity, to understand the relationship between the presence of organic matter and microorganisms in these types of soils. TOC content levels were similar to the labile pool of carbon suggesting the absence of recalcitrant carbon in these soils. LOC ranged between 2 to 60 mu g/g of soil. PLFA analysis indicated a maximum of 2.3 X 10 (super 5) cell equivalents/g. Culturing of soil extracts yielded 1.1 X 10 (super 2) -3.7 X 10 (super 3) CFU/g. qRT-PCR showed between 1.0 X 10 (super 2) and 8 X 10 (super 3) cells/g; and DAPI fluorescent staining indicated bacteria counts up to 5 X 10 (super 4) cells/g. Arid and semiarid samples (controls) showed values between 10 (super 7) and 10 (super 11) cells/g with all of the methods used. Importantly, the concentration of microorganisms in hyper-arid soils did not show any correlation with the organic carbon content; however, there was a significant dependence on the oxidant activity present in these soil samples evaluated as the capacity to decompose sodium formate in 10 hours. We suggest that the analysis of oxidant activity could be a useful indicator of the microbial habitability in hyper-arid soils, obviating the need to measure water activity over time. This approach could be useful in astrobiological studies on other worlds. JF - Palaios AU - Valdivia-Silva, Julio E AU - Karouia, Fathi AU - Navarro-Gonzalez, Rafael AU - McKay, Christopher Y1 - 2016/01// PY - 2016 DA - January 2016 SP - 1 EP - 9 PB - Society for Sedimentary Geology, Tulsa, OK VL - 31 IS - 1 SN - 0883-1351, 0883-1351 KW - soils KW - terrestrial environment KW - arid environment KW - oxidation KW - astrobiology KW - Mars KW - terrestrial planets KW - planets KW - South America KW - carbon KW - terrestrial comparison KW - Peru KW - organic carbon KW - La Joya Desert KW - microorganisms KW - 04:Extraterrestrial geology KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824216271?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Palaios&rft.atitle=Microorganisms%2C+organic+carbon%2C+and+their+relationship+with+oxidant+activity+in+hyper-arid+Mars-like+soils%3B+implications+for+soil+habitability&rft.au=Valdivia-Silva%2C+Julio+E%3BKarouia%2C+Fathi%3BNavarro-Gonzalez%2C+Rafael%3BMcKay%2C+Christopher&rft.aulast=Valdivia-Silva&rft.aufirst=Julio&rft.date=2016-01-01&rft.volume=31&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Palaios&rft.issn=08831351&rft_id=info:doi/10.2110%2Fpalo.2015.010 L2 - http://www.bioone.org/bioone/?request=get-archive&issn=0883-1351 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States | Reference includes data supplied by SEPM (Society for Sedimentary Geology), Tulsa, OK, United States N1 - Date revised - 2016-01-01 N1 - Number of references - 62 N1 - PubXState - OK N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - Last updated - 2016-09-29 N1 - SubjectsTermNotLitGenreText - arid environment; astrobiology; carbon; La Joya Desert; Mars; microorganisms; organic carbon; oxidation; Peru; planets; soils; South America; terrestrial comparison; terrestrial environment; terrestrial planets DO - http://dx.doi.org/10.2110/palo.2015.010 ER - TY - JOUR T1 - 24th V. M. Goldschmidt conference; theme 1 "Cosmochemistry" AN - 1824213216; 2016-082893 JF - Geochemical Journal AU - Usui, Tomohiro AU - Bouvier, Audrey AU - Simon, Justin I AU - Kita, Noriko Y1 - 2016 PY - 2016 DA - 2016 SP - 1 EP - 79 PB - Geochemical Society of Japan, Nagoya VL - 50 IS - 1 SN - 0016-7002, 0016-7002 KW - terrestrial planets KW - planets KW - symposia KW - cosmochemistry KW - early solar system KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824213216?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochemical+Journal&rft.atitle=24th+V.+M.+Goldschmidt+conference%3B+theme+1+%22Cosmochemistry%22&rft.au=Usui%2C+Tomohiro%3BBouvier%2C+Audrey%3BSimon%2C+Justin+I%3BKita%2C+Noriko&rft.aulast=Usui&rft.aufirst=Tomohiro&rft.date=2016-01-01&rft.volume=50&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Geochemical+Journal&rft.issn=00167002&rft_id=info:doi/ L2 - http://www.terrapub.co.jp/journals/GJ/index.html LA - English DB - GeoRef N1 - Conference title - 24th V. M. Goldschmidt conference; theme 1 "Cosmochemistry" N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Document feature - illus. N1 - SuppNotes - Individual papers are cited separately N1 - Last updated - 2016-09-29 N1 - CODEN - GEJOBE N1 - SubjectsTermNotLitGenreText - cosmochemistry; early solar system; planets; symposia; terrestrial planets ER - TY - JOUR T1 - Near-surface ground ice conditions in University Valley, McMurdo dry valleys of Antarctica AN - 1819896366; 2016-079007 JF - International Conference on Permafrost - Book of Abstracts AU - Lapalme, Caitlin Maren Liette AU - Lacelle, Denis AU - Pollard, Wayne AU - Fisher, David AU - Davila, Alfonso AU - McKay, Christopher Y1 - 2016 PY - 2016 DA - 2016 SP - 132 PB - [publisher varies], [location varies] VL - 11 KW - soils KW - University Valley KW - permafrost KW - climate change KW - mineral composition KW - Antarctica KW - ice KW - McMurdo dry valleys KW - climate effects KW - Victoria Land KW - ground ice KW - glacial geology KW - polygons KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819896366?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Conference+on+Permafrost+-+Book+of+Abstracts&rft.atitle=Near-surface+ground+ice+conditions+in+University+Valley%2C+McMurdo+dry+valleys+of+Antarctica&rft.au=Lapalme%2C+Caitlin+Maren+Liette%3BLacelle%2C+Denis%3BPollard%2C+Wayne%3BFisher%2C+David%3BDavila%2C+Alfonso%3BMcKay%2C+Christopher&rft.aulast=Lapalme&rft.aufirst=Caitlin+Maren&rft.date=2016-01-01&rft.volume=11&rft.issue=&rft.spage=132&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Permafrost+-+Book+of+Abstracts&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International Conference on Permafrost; exploring permafrost in a future Earth N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Last updated - 2016-10-25 N1 - CODEN - #07985 N1 - SubjectsTermNotLitGenreText - Antarctica; climate change; climate effects; glacial geology; ground ice; ice; McMurdo dry valleys; mineral composition; permafrost; polygons; soils; University Valley; Victoria Land ER - TY - JOUR T1 - Overlapping phreatic blasts at Kings Bowl, Idaho AN - 1815675198; 2016-074524 AB - Kings Bowl pit is a 2.2ka crater created by a phreatic blast through a solidifying lava pond in the eastern Snake River Plain (ESRP), Idaho. The main crater (80m x 30m x 30m) is located along the Great Rift. The phreatic blast occurred at the end of the effusive eruption that formed the lava pond, following drain-back and local solidification of the basalt. East of the main pit, ballistic blocks are mantled by fine tephra mixed with eolian dust, up to a thickness of approximately 0.6m (see Sandmeyer et al. and Trcka et al., this conference). West of the pit, blocks are exposed in an ejecta field reaching >100m from the vent. While the ejecta historically has been assumed to have come from a single blast event at the main Kings Bowl pit, field measurements of several hundred ejecta blocks with >20cm diameter suggest that there was actually more than one vent involved. We use differential GPS to map the distribution of ballistic blocks on the west side of the fissure along multiple transects parallel to the fissure and three transects radial to the main pit, recording position, percent vesiculation, and the length of three mutually perpendicular axes for each block. The distribution of ejecta blocks clearly indicates that more than one vent along the fissure experienced phreatic explosion in the final stages of the Kings Bowl eruption. Small pits that were previously identified as draw-down or local collapse areas along the fissure correlate with areas of increased linear block frequency and size, depicting approximately 6 distinct additional phreatic vents immediately to the north of the main pit; preliminary work suggests that there are more phreatic blast sites further along the Kings Bowl fissure, beyond the scope of this work. The smaller phreatic pits noted immediately north of the main pit along the Great Rift correspond broadly with the limits of the local tephra/dust field east of the fissure. Ballistic parameters, used to calculate ejection velocities typical of each pit, support the argument that the difference in pit size within the Kings Bowl volcanic feature is a function of limiting magmatic heat rather than water, though both were involved in the blast. JF - Abstracts with Programs - Geological Society of America AU - Borg, Christian AU - Kobs Nawotniak, Shannon AU - Hughes, Scott S AU - Sears, Derek AU - Lim, Darlene S S AU - Heldmann, Jennifer AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 10 EP - 5 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 6 SN - 0016-7592, 0016-7592 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815675198?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Overlapping+phreatic+blasts+at+Kings+Bowl%2C+Idaho&rft.au=Borg%2C+Christian%3BKobs+Nawotniak%2C+Shannon%3BHughes%2C+Scott+S%3BSears%2C+Derek%3BLim%2C+Darlene+S+S%3BHeldmann%2C+Jennifer%3BAnonymous&rft.aulast=Borg&rft.aufirst=Christian&rft.date=2016-01-01&rft.volume=48&rft.issue=6&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/10.1130%2Fabs%2F2016RM-276253 LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Rocky Mountain Section, 68th annual meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2016-01-01 N1 - PubXState - CO N1 - Last updated - 2016-09-01 N1 - CODEN - GAAPBC DO - http://dx.doi.org/10.1130/abs/2016RM-276253 ER - TY - JOUR T1 - Distinguishing lava flow textures based on quantitative measures of roughness AN - 1815675179; 2016-074544 AB - Mapping lava flow textures and interpreting their emplacement conditions is crucial to understanding the eruptive history of basaltic volcanoes. While textural classifications like a'a and pahoehoe are clear, there are many intermediate textures along the spectrum that are much more challenging to classify objectively. This creates potential confusion, as these names are based on qualitative descriptions of the surfaces that are challenging to standardize between observers. Objective classification of lava flows based on roughness measurements at various scales will allow rapid and consistent mapping of planetary bodies in addition to classification of intermediate terrestrial flows. The diversity of lava flow textures is the result of differing compositions and dynamics within the flow. This study investigates the horizontal scales at which surface roughness calculations can differentiate flow types, suggesting data resolution limits to be considered in planetary lava flow identification. Unmanned Aerial Vehicles (UAVs) were used to collect aerial imagery at the Craters of the Moon lava field in Idaho. This high-resolution imagery was used to create Digital Terrain Models (DTMs) that were down-sampled to simulate a range of lower resolution imagery for comparison. Results show that roughness can be used to distinguish lava flow textures. The data resolution necessary to differentiate lava flow textures is determined by how precise the textural classification must be, and is an important consideration when interpreting terrestrial and planetary data. The long term goal of this work is to create an objective tool for lava texture classification on Earth and other planetary bodies, as constrained by data resolution. JF - Abstracts with Programs - Geological Society of America AU - Mallonee, Hester C AU - Kobs Nawotniak, Shannon AU - McGregor, Michael AU - Hughes, Scott S AU - Neish, Catherine D AU - Downs, Michael AU - Delparte, Donna AU - Lim, Darlene S S AU - Heldmann, Jennifer AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 12 EP - 4 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 6 SN - 0016-7592, 0016-7592 KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815675179?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Distinguishing+lava+flow+textures+based+on+quantitative+measures+of+roughness&rft.au=Mallonee%2C+Hester+C%3BKobs+Nawotniak%2C+Shannon%3BMcGregor%2C+Michael%3BHughes%2C+Scott+S%3BNeish%2C+Catherine+D%3BDowns%2C+Michael%3BDelparte%2C+Donna%3BLim%2C+Darlene+S+S%3BHeldmann%2C+Jennifer%3BAnonymous&rft.aulast=Mallonee&rft.aufirst=Hester&rft.date=2016-01-01&rft.volume=48&rft.issue=6&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/10.1130%2Fabs%2F2016RM-276222 LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Rocky Mountain Section, 68th annual meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2016-01-01 N1 - PubXState - CO N1 - Last updated - 2016-09-01 N1 - CODEN - GAAPBC DO - http://dx.doi.org/10.1130/abs/2016RM-276222 ER - TY - JOUR T1 - Metal-silicate partitioning of siderophile elements and core-mantle segregation AN - 1815673282; 2016-074127 JF - Geophysical Monograph AU - Righter, Kevin Y1 - 2016 PY - 2016 DA - 2016 SP - 161 EP - 179 PB - Wiley for American Geophysical Union, Washington, DC VL - 217 SN - 0065-8448, 0065-8448 KW - silicates KW - segregation KW - oxygen KW - isotopes KW - mantle KW - coupling KW - silicon KW - core-mantle boundary KW - melts KW - fugacity KW - temperature KW - lower mantle KW - partitioning KW - phase equilibria KW - volatile elements KW - chemical properties KW - thermodynamic properties KW - chemical composition KW - depletion KW - P-T conditions KW - liquid phase KW - magma oceans KW - experimental studies KW - Earth KW - accretion KW - pressure KW - silicate melts KW - oxidation KW - differentiation KW - siderophile elements KW - concepts KW - outer core KW - models KW - metals KW - core KW - trace metals KW - 17B:Geophysics of minerals and rocks KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815673282?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Metal-silicate+partitioning+of+siderophile+elements+and+core-mantle+segregation&rft.au=Righter%2C+Kevin&rft.aulast=Righter&rft.aufirst=Kevin&rft.date=2016-01-01&rft.volume=217&rft.issue=&rft.spage=161&rft.isbn=&rft.btitle=&rft.title=Geophysical+Monograph&rft.issn=00658448&rft_id=info:doi/ L2 - http://agupubs.onlinelibrary.wiley.com/agu/books/geophysical-monograph-series.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 184 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2016-09-01 N1 - CODEN - GPMGAD N1 - SubjectsTermNotLitGenreText - accretion; chemical composition; chemical properties; concepts; core; core-mantle boundary; coupling; depletion; differentiation; Earth; experimental studies; fugacity; isotopes; liquid phase; lower mantle; magma oceans; mantle; melts; metals; models; outer core; oxidation; oxygen; P-T conditions; partitioning; phase equilibria; pressure; segregation; siderophile elements; silicate melts; silicates; silicon; temperature; thermodynamic properties; trace metals; volatile elements ER - TY - JOUR T1 - A model-model and data-model comparison for the early Eocene hydrological cycle AN - 1815667563; 2016-076598 AB - A range of proxy observations have recently provided constraints on how Earth's hydrological cycle responded to early Eocene climatic changes. However, comparisons of proxy data to general circulation model (GCM) simulated hydrology are limited and inter-model variability remains poorly characterised. In this work, we undertake an intercomparison of GCM-derived precipitation and P - E distributions within the extended EoMIP ensemble (Eocene Modelling Intercomparison Project; Lunt et al., 2012), which includes previously published early Eocene simulations performed using five GCMs differing in boundary conditions, model structure, and precipitation-relevant parameterisation schemes. We show that an intensified hydrological cycle, manifested in enhanced global precipitation and evaporation rates, is simulated for all Eocene simulations relative to the preindustrial conditions. This is primarily due to elevated atmospheric paleo-CO (sub 2) , resulting in elevated temperatures, although the effects of differences in paleogeography and ice sheets are also important in some models. For a given CO (sub 2) level, globally averaged precipitation rates vary widely between models, largely arising from different simulated surface air temperatures. Models with a similar global sensitivity of precipitation rate to temperature (dP/dT) display different regional precipitation responses for a given temperature change. Regions that are particularly sensitive to model choice include the South Pacific, tropical Africa, and the Peri-Tethys, which may represent targets for future proxy acquisition. A comparison of early and middle Eocene leaf-fossil derived precipitation estimates with the GCM output illustrates that GCMs generally underestimate precipitation rates at high latitudes, although a possible seasonal bias of the proxies cannot be excluded. Models which warm these regions, either via elevated CO (sub 2) or by varying poorly constrained model parameter values, are most successful in simulating a match with geologic data. Further data from low-latitude regions and better constraints on early Eocene CO (sub 2) are now required to discriminate between these model simulations given the large error bars on paleoprecipitation estimates. Given the clear differences between simulated precipitation distributions within the ensemble, our results suggest that paleohydrological data offer an independent means by which to evaluate model skill for warm climates. JF - Climate of the Past AU - Carmichael, Matthew J AU - Lunt, Daniel J AU - Huber, Matthew AU - Heinemann, Malte AU - Kiehl, Jeffrey AU - LeGrande, Allegra AU - Loptson, Claire A AU - Roberts, Chris D AU - Sagoo, Navjit AU - Shields, Christine AU - Valdes, Paul J AU - Winguth, Arne AU - Winguth, Cornelia AU - Pancost, Richard D Y1 - 2016 PY - 2016 DA - 2016 SP - 455 EP - 481 PB - Copernicus, Katlenburg-Lindau VL - 12 IS - 2 SN - 1814-9324, 1814-9324 KW - lower Eocene KW - FAMOUS model KW - ECHAM5 KW - data processing KW - data KW - atmospheric precipitation KW - GISS-ER model KW - simulation KW - temperature KW - HadCM3L KW - Cenozoic KW - spatial distribution KW - EoMIP KW - controls KW - hydrologic cycle KW - MPI-OM model KW - sensitivity analysis KW - greenhouse effect KW - climate forcing KW - general circulation models KW - annual variations KW - Eocene KW - paleohydrology KW - global KW - Paleogene KW - indicators KW - models KW - Tertiary KW - evaporation KW - CCSM3 model KW - air KW - temporal distribution KW - seasonal variations KW - greenhouse gases KW - 21:Hydrogeology KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815667563?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climate+of+the+Past&rft.atitle=A+model-model+and+data-model+comparison+for+the+early+Eocene+hydrological+cycle&rft.au=Carmichael%2C+Matthew+J%3BLunt%2C+Daniel+J%3BHuber%2C+Matthew%3BHeinemann%2C+Malte%3BKiehl%2C+Jeffrey%3BLeGrande%2C+Allegra%3BLoptson%2C+Claire+A%3BRoberts%2C+Chris+D%3BSagoo%2C+Navjit%3BShields%2C+Christine%3BValdes%2C+Paul+J%3BWinguth%2C+Arne%3BWinguth%2C+Cornelia%3BPancost%2C+Richard+D&rft.aulast=Carmichael&rft.aufirst=Matthew&rft.date=2016-01-01&rft.volume=12&rft.issue=2&rft.spage=455&rft.isbn=&rft.btitle=&rft.title=Climate+of+the+Past&rft.issn=18149324&rft_id=info:doi/ L2 - http://www.clim-past.net/12/455/2016/cp-12-455-2016.pdf http://www.climate-of-the-past.net/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 200 N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - air; annual variations; atmospheric precipitation; CCSM3 model; Cenozoic; climate forcing; controls; data; data processing; ECHAM5; Eocene; EoMIP; evaporation; FAMOUS model; general circulation models; GISS-ER model; global; greenhouse effect; greenhouse gases; HadCM3L; hydrologic cycle; indicators; lower Eocene; models; MPI-OM model; Paleogene; paleohydrology; seasonal variations; sensitivity analysis; simulation; spatial distribution; temperature; temporal distribution; Tertiary ER - TY - JOUR T1 - Streamlined islands of Mars AN - 1812220587; 2016-072729 AB - It has been long debated whether streamlined forms located on the floors of Martian channels are depositional or erosional in origin. Streamlined elevations may form by deposition, erosion or both, where the channel floor is exposed to liquid water, but not generally in channels whose morphology is dominated by sapping processes. On Earth, bars form where sediment is deposited within the channel and their surface remains submerged. Islands are erosional remnants of the floodplain or bedrock. Terrestrial definitions are difficult to apply to the now-dry and likely ephemeral paleochannels of Mars. Bars may be bedrock-cored, formed by accumulation of fine sediment on top or beside bedrock outcrops, e.g., pendant bars. On Mars, crater-cored islands may be the most common island form, where the tail or downstream side of the island is depositional. There are few instances of channel belt features interpreted as likely depositional. These sites occur in ancient valley networks, small mid-latitude valleys, and outflow channels. However, most streamlined islands in outflow channels are still thought to be erosional remnants. In Navua Valles, fluvial sediments were deposited from the Late Noachian to the Late Amazonian. Many bar fields are located within channel bends or where the channel widens. This setting is characteristic of expansion bars in scabland areas. Two other terrestrial channel bar types are also possible analogs: 1) Pendant bars, which are often separated from the channel walls on their landward sides by "fosses" (narrow secondary channels) that prevented deposition; and 2) Free, migrating longitudinal mid-channel bars, which also form after large flood events. The erosional events that carved the widest Navua Valles channels may have had bankfull discharge rates on the order of 100,000 m (super 3) /s. These rates are consistent with the order of magnitude of peak discharges (60,000 m (super 3) /s ) that formed Box Canyon, ID, and are one and two orders of magnitudes lower than the Missoula or Bonneville floods, respectively. Fluvial dunes have also been proposed in a few locations on Mars. These include flood-formed dunes, antidunes or transverse ribs, and "flood bars", all proposed to be catastrophic flood-related. In Navua Valles, no signs of fluvial dunes were found on almost complete CTX and available HiRISE coverage. JF - Abstracts with Programs - Geological Society of America AU - Hargitai, Henrik I AU - Gulick, Virginia C AU - Glines, Natalie H AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 17 EP - 7 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 6 SN - 0016-7592, 0016-7592 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812220587?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Streamlined+islands+of+Mars&rft.au=Hargitai%2C+Henrik+I%3BGulick%2C+Virginia+C%3BGlines%2C+Natalie+H%3BAnonymous&rft.aulast=Hargitai&rft.aufirst=Henrik&rft.date=2016-01-01&rft.volume=48&rft.issue=6&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/10.1130%2Fabs%2F2016RM-276229 LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Rocky Mountain Section, 68th annual meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2016-01-01 N1 - PubXState - CO N1 - Last updated - 2016-08-18 N1 - CODEN - GAAPBC DO - http://dx.doi.org/10.1130/abs/2016RM-276229 ER - TY - JOUR T1 - Gully formation and seasonal flows on Mars; revisiting water flow processes as a formation mechanism on recent and current Mars AN - 1812220199; 2016-072728 AB - The discoveries of Martian gullies (Malin and Edgett, 2000) and seasonal slope flows (McEwen et al., 2011) active on Mars today have re-ignited the debate over various channel, valley, and gully formation mechanisms on Mars. The controversy over whether liquid water was the primary formation mechanism, harkens back to the contentious debate over the cataclysmic flooding of the Channeled Scablands advocated by J Harlen Bretz. Likewise, during the mid-1970s to early 2000s, catastrophic flooding and ground-water sapping processes advocated by Vic Baker and others were strongly debated along with other mechanisms as the primary processes responsible for outflow channel and valley network formation on Mars. During the last few years, the value of multiple working hypotheses is again becoming apparent, this time in understanding Martian gullies and Recurring Slope Lineae. Formation mechanisms put forth to explain these fluvial-like landforms include liquid H (sub 2) O/ice erosion, CO (sub 2) ice/frost sublimation processes, CO (sub 2) ice block sliding, salt deliquescence, and dry granular flows, among others. In this study, we used recent images returned by NASA's Mars Reconnaissance Orbiter's (MRO) HiRISE camera along with other data to evaluate the potential role of water processes in forming the gullies and other similar features. We constructed drainage maps and carried out detailed morphological and morphometric studies of gully systems in various environmental settings. Using HiRISE digital terrain models, we generated detailed longitudinal and cross-sectional profiles of numerous gully systems and derived volume estimates for both the gullies and their debris aprons. Several gully networks formed highly integrated patterns similar in morphology to fluvial systems. We find that the highly integrated systems generally have eroded volumes significantly larger than their apron volumes, suggesting the missing volumes ( approximately 40-60% or more) were likely volatiles involved in gully formation. Surface temperature data suggest that the volatile component may be more consistent with H (sub 2) O although CO (sub 2) cannot be ruled out. Other less integrated systems have apron volumes that equal or significantly exceed the eroded gully volumes suggesting that dry flows, avalanching, gully infill, or other dry processes may have been more important. JF - Abstracts with Programs - Geological Society of America AU - Gulick, Virginia C AU - Glines, Natalie H AU - Hargitai, Henrik I AU - Anonymous Y1 - 2016 PY - 2016 DA - 2016 SP - Abstract no. 17 EP - 6 PB - Geological Society of America (GSA), Boulder, CO VL - 48 IS - 6 SN - 0016-7592, 0016-7592 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812220199?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Gully+formation+and+seasonal+flows+on+Mars%3B+revisiting+water+flow+processes+as+a+formation+mechanism+on+recent+and+current+Mars&rft.au=Gulick%2C+Virginia+C%3BGlines%2C+Natalie+H%3BHargitai%2C+Henrik+I%3BAnonymous&rft.aulast=Gulick&rft.aufirst=Virginia&rft.date=2016-01-01&rft.volume=48&rft.issue=6&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/10.1130%2Fabs%2F2016RM-276281 LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Rocky Mountain Section, 68th annual meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2016-01-01 N1 - PubXState - CO N1 - Last updated - 2016-08-18 N1 - CODEN - GAAPBC DO - http://dx.doi.org/10.1130/abs/2016RM-276281 ER - TY - JOUR T1 - The Pliocene Model Intercomparison Project (PlioMIP) Phase 2; scientific objectives and experimental design AN - 1812216277; 2016-070517 AB - The Pliocene Model Intercomparison Project (PlioMIP) is a co-ordinated international climate modelling initiative to study and understand climate and environments of the Late Pliocene, as well as their potential relevance in the context of future climate change. PlioMIP examines the consistency of model predictions in simulating Pliocene climate and their ability to reproduce climate signals preserved by geological climate archives. Here we provide a description of the aim and objectives of the next phase of the model intercomparison project (PlioMIP Phase 2), and we present the experimental design and boundary conditions that will be utilized for climate model experiments in Phase 2. Following on from PlioMIP Phase 1, Phase 2 will continue to be a mechanism for sampling structural uncertainty within climate models. However, Phase 1 demonstrated the requirement to better understand boundary condition uncertainties as well as uncertainty in the methodologies used for data-model comparison. Therefore, our strategy for Phase 2 is to utilize state-of-the-art boundary conditions that have emerged over the last 5 years. These include a new palaeogeographic reconstruction, detailing ocean bathymetry and land-ice surface topography. The ice surface topography is built upon the lessons learned from offline ice sheet modelling studies. Land surface cover has been enhanced by recent additions of Pliocene soils and lakes. Atmospheric reconstructions of palaeo-CO (sub 2) are emerging on orbital timescales, and these are also incorporated into PlioMIP Phase 2. New records of surface and sea surface temperature change are being produced that will be more temporally consistent with the boundary conditions and forcings used within models. Finally we have designed a suite of prioritized experiments that tackle issues surrounding the basic understanding of the Pliocene and its relevance in the context of future climate change in a discrete way. JF - Climate of the Past AU - Haywood, Alan M AU - Dowsett, Harry J AU - Dolan, Aisling M AU - Rowley, David AU - Abe-Ouchi, Ayako AU - Otto-Bliesner, Bette L AU - Chandler, Mark A AU - Hunter, Stephen J AU - Lunt, Daniel J AU - Pound, Matthew AU - Salzmann, Ulrich Y1 - 2016 PY - 2016 DA - 2016 SP - 663 EP - 675 PB - Copernicus, Katlenburg-Lindau VL - 12 IS - 3 SN - 1814-9324, 1814-9324 KW - methods KW - Leg 165 KW - Expedition 306 KW - data KW - global change KW - PlioMIP KW - paleoclimatology KW - climate change KW - modern KW - Pliocene Model Intercomparison Project KW - Mid-Atlantic Ridge KW - sensitivity analysis KW - Expeditions 303/306 KW - uncertainty KW - climate KW - Leg 108 KW - experimental studies KW - prediction KW - PRISM4 KW - Integrated Ocean Drilling Program KW - equations KW - boundary conditions KW - ODP Site 661 KW - models KW - ODP Site 662 KW - objectives KW - IODP Site U1313 KW - Ocean Drilling Program KW - ODP Site 999 KW - North Atlantic KW - design KW - Atlantic Ocean KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812216277?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climate+of+the+Past&rft.atitle=The+Pliocene+Model+Intercomparison+Project+%28PlioMIP%29+Phase+2%3B+scientific+objectives+and+experimental+design&rft.au=Haywood%2C+Alan+M%3BDowsett%2C+Harry+J%3BDolan%2C+Aisling+M%3BRowley%2C+David%3BAbe-Ouchi%2C+Ayako%3BOtto-Bliesner%2C+Bette+L%3BChandler%2C+Mark+A%3BHunter%2C+Stephen+J%3BLunt%2C+Daniel+J%3BPound%2C+Matthew%3BSalzmann%2C+Ulrich&rft.aulast=Haywood&rft.aufirst=Alan&rft.date=2016-01-01&rft.volume=12&rft.issue=3&rft.spage=663&rft.isbn=&rft.btitle=&rft.title=Climate+of+the+Past&rft.issn=18149324&rft_id=info:doi/ L2 - http://www.clim-past.net/12/663/2016/cp-12-663-2016.pdf http://www.climate-of-the-past.net/ 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 - 43 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2016-08-18 N1 - SubjectsTermNotLitGenreText - Atlantic Ocean; boundary conditions; climate; climate change; data; design; equations; Expedition 306; Expeditions 303/306; experimental studies; global change; Integrated Ocean Drilling Program; IODP Site U1313; Leg 108; Leg 165; methods; Mid-Atlantic Ridge; models; modern; North Atlantic; objectives; Ocean Drilling Program; ODP Site 661; ODP Site 662; ODP Site 999; paleoclimatology; Pliocene Model Intercomparison Project; PlioMIP; prediction; PRISM4; sensitivity analysis; uncertainty ER - TY - JOUR T1 - Telomere length shortening is associated with treatment-free remission in chronic myeloid leukemia patients AN - 1807949836 AB - We studied telomere length in 32 CML patients who discontinued imatinib after achieving complete molecular remission and 32 age-sex-matched controls. The relative telomere length (RTL) was determined by q-PCR as the telomere to single copy gene (36B4) ratio normalized to a reference sample (K-562 DNA). Age-corrected RTL (acRTL) was also obtained. The 36-month probability of treatment-free remission (TFR) was 59.4 %. TFR patients showed shorter acRTL compared to relapsed (mean ± SD = 0.01 ± 0.14 vs 0.20 ± 0.21; p = 0.01). TFR was significantly higher in CML patients with acRTL ≤0.09 (78.9 vs 30.8 %, p = 0.002). CML stem cells harboring longer telomeres possibly maintain a proliferative potential after treatment discontinuation. JF - Journal of Hematology & Oncology AU - Caocci, Giovanni AU - Greco, Marianna AU - Delogu, Giuseppe AU - Secchi, Christian AU - Martino, Bruno AU - Labate, Claudia AU - Abruzzese, Elisabetta AU - Trawinska, Malgorzata Monika AU - Galimberti, Sara AU - Orru, Federica AU - Fozza, Claudio AU - Carlo Gambacorti Passerini AU - Galimi, Francesco AU - Giorgio La Nasa Y1 - 2016 PY - 2016 DA - 2016 CY - London PB - BioMed Central VL - 9 KW - Medical Sciences--Oncology KW - Chronic myeloid leukemia KW - Telomere KW - Treatment-free remission KW - Imatinib KW - Telomerase UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807949836?accountid=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+Hematology+%26+Oncology&rft.atitle=Telomere+length+shortening+is+associated+with+treatment-free+remission+in+chronic+myeloid+leukemia+patients&rft.au=Caocci%2C+Giovanni%3BGreco%2C+Marianna%3BDelogu%2C+Giuseppe%3BSecchi%2C+Christian%3BMartino%2C+Bruno%3BLabate%2C+Claudia%3BAbruzzese%2C+Elisabetta%3BTrawinska%2C+Malgorzata+Monika%3BGalimberti%2C+Sara%3BOrru%2C+Federica%3BFozza%2C+Claudio%3BCarlo+Gambacorti+Passerini%3BGalimi%2C+Francesco%3BGiorgio+La+Nasa&rft.aulast=Caocci&rft.aufirst=Giovanni&rft.date=2016-01-01&rft.volume=9&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hematology+%26+Oncology&rft.issn=&rft_id=info:doi/10.1186%2Fs13045-016-0293-y LA - English DB - ProQuest Central N1 - Copyright - Copyright BioMed Central 2016 N1 - Last updated - 2016-08-01 DO - http://dx.doi.org/10.1186/s13045-016-0293-y ER - TY - JOUR T1 - Mineralogy, provenance, and diagenesis of a potassic basaltic sandstone on Mars; CheMin X-ray diffraction of the Windjana sample (Kimberley area, Gale Crater) AN - 1800396043; 2016-055716 AB - The Windjana drill sample, a sandstone of the Dillinger member (Kimberley formation, Gale Crater, Mars), was analyzed by CheMin X-ray diffraction (XRD) in the MSL Curiosity rover. From Rietveld refinements of its XRD pattern, Windjana contains the following: sanidine (21% weight, approximately Or (sub 95) ); augite (20%); magnetite (12%); pigeonite; olivine; plagioclase; amorphous and smectitic material ( approximately 25%); and percent levels of others including ilmenite, fluorapatite, and bassanite. From mass balance on the Alpha Proton X-ray Spectrometer (APXS) chemical analysis, the amorphous material is Fe rich with nearly no other cations-like ferrihydrite. The Windjana sample shows little alteration and was likely cemented by its magnetite and ferrihydrite. From ChemCam Laser-Induced Breakdown Spectrometer (LIBS) chemical analyses, Windjana is representative of the Dillinger and Mount Remarkable members of the Kimberley formation. LIBS data suggest that the Kimberley sediments include at least three chemical components. The most K-rich targets have 5.6% K (sub 2) O, approximately 1.8 times that of Windjana, implying a sediment component with >40% sanidine, e.g., a trachyte. A second component is rich in mafic minerals, with little feldspar (like a shergottite). A third component is richer in plagioclase and in Na (sub 2) O, and is likely to be basaltic. The K-rich sediment component is consistent with APXS and ChemCam observations of K-rich rocks elsewhere in Gale Crater. The source of this sediment component was likely volcanic. The presence of sediment from many igneous sources, in concert with Curiosity's identifications of other igneous materials (e.g., mugearite), implies that the northern rim of Gale Crater exposes a diverse igneous complex, at least as diverse as that found in similar-age terranes on Earth. Abstract Copyright (2015), . The Authors. JF - Journal of Geophysical Research: Planets AU - Treiman, Allan H AU - Bish, David L AU - Vaniman, David T AU - Chipera, Steve J AU - Blake, David F AU - Ming, Doug W AU - Morris, Richard V AU - Bristow, Thomas F AU - Morrison, Shaunna M AU - Baker, Michael B AU - Rampe, Elizabeth B AU - Downs, Robert T AU - Filiberto, Justin AU - Glazner, Allen F AU - Gellert, Ralf AU - Thompson, Lucy M AU - Schmidt, Mariek E AU - Le Deit, Laetitia AU - Wiens, Roger C AU - McAdam, Amy C AU - Achilles, Cherie N AU - Edgett, Kenneth S AU - Farmer, Jack D AU - Fendrich, Kim V AU - Grotzinger, John P AU - Gupta, Sanjeev AU - Morookian, John Michael AU - Newcombe, Megan E AU - Rice, Melissa S AU - Spray, John G AU - Stolper, Edward M AU - Sumner, Dawn Y AU - Vasavada, Ashwin R AU - Yen, Albert S Y1 - 2016/01// PY - 2016 DA - January 2016 SP - 75 EP - 106 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 1 SN - 2169-9097, 2169-9097 KW - silicates KW - alkali basalts KW - Windjana sample KW - pigeonite KW - volcanic rocks KW - X-ray diffraction data KW - sanidine KW - igneous rocks KW - augite KW - sandstone KW - olivine group KW - Mars KW - bassanite KW - cores KW - Gale Crater KW - mugearite KW - sedimentary rocks KW - pyroxene group KW - mineral composition KW - clinopyroxene KW - alkali feldspar KW - olivine KW - Curiosity Rover KW - basalts KW - orthosilicates KW - oxides KW - framework silicates KW - basaltic composition KW - chain silicates KW - plagioclase KW - sulfates KW - smectite KW - potassic composition KW - Kimberley Formation KW - Rietveld refinement KW - ferrihydrite KW - clay minerals KW - terrestrial planets KW - nesosilicates KW - provenance KW - planets KW - diagenesis KW - Mars Science Laboratory KW - sheet silicates KW - feldspar group KW - clastic rocks KW - magnetite KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800396043?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Planets&rft.atitle=Mineralogy%2C+provenance%2C+and+diagenesis+of+a+potassic+basaltic+sandstone+on+Mars%3B+CheMin+X-ray+diffraction+of+the+Windjana+sample+%28Kimberley+area%2C+Gale+Crater%29&rft.au=Treiman%2C+Allan+H%3BBish%2C+David+L%3BVaniman%2C+David+T%3BChipera%2C+Steve+J%3BBlake%2C+David+F%3BMing%2C+Doug+W%3BMorris%2C+Richard+V%3BBristow%2C+Thomas+F%3BMorrison%2C+Shaunna+M%3BBaker%2C+Michael+B%3BRampe%2C+Elizabeth+B%3BDowns%2C+Robert+T%3BFiliberto%2C+Justin%3BGlazner%2C+Allen+F%3BGellert%2C+Ralf%3BThompson%2C+Lucy+M%3BSchmidt%2C+Mariek+E%3BLe+Deit%2C+Laetitia%3BWiens%2C+Roger+C%3BMcAdam%2C+Amy+C%3BAchilles%2C+Cherie+N%3BEdgett%2C+Kenneth+S%3BFarmer%2C+Jack+D%3BFendrich%2C+Kim+V%3BGrotzinger%2C+John+P%3BGupta%2C+Sanjeev%3BMorookian%2C+John+Michael%3BNewcombe%2C+Megan+E%3BRice%2C+Melissa+S%3BSpray%2C+John+G%3BStolper%2C+Edward+M%3BSumner%2C+Dawn+Y%3BVasavada%2C+Ashwin+R%3BYen%2C+Albert+S&rft.aulast=Treiman&rft.aufirst=Allan&rft.date=2016-01-01&rft.volume=121&rft.issue=1&rft.spage=75&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2015JE004932 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 187 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2016-06-30 N1 - SubjectsTermNotLitGenreText - alkali basalts; alkali feldspar; augite; basaltic composition; basalts; bassanite; chain silicates; clastic rocks; clay minerals; clinopyroxene; cores; Curiosity Rover; diagenesis; feldspar group; ferrihydrite; framework silicates; Gale Crater; igneous rocks; Kimberley Formation; magnetite; Mars; Mars Science Laboratory; mineral composition; mugearite; nesosilicates; olivine; olivine group; orthosilicates; oxides; pigeonite; plagioclase; planets; potassic composition; provenance; pyroxene group; Rietveld refinement; sandstone; sanidine; sedimentary rocks; sheet silicates; silicates; smectite; sulfates; terrestrial planets; volcanic rocks; Windjana sample; X-ray diffraction data DO - http://dx.doi.org/10.1002/2015JE004932 ER - TY - JOUR T1 - Magnesium sulfate as a key mineral for the detection of organic molecules on Mars using pyrolysis AN - 1800396000; 2016-055715 AB - Pyrolysis of soil or rock samples is the preferred preparation technique used on Mars to search for organic molecules up today. During pyrolysis, oxichlorines present in the soil of Mars release oxidant species that alter the organic molecules potentially contained in the samples collected by the space probes. This process can explain the difficulty experienced by in situ exploration probes to detect organic materials in Mars soil samples until recently. Within a few months, the Curiosity rover should reach and analyze for the first time soils rich in sulfates which could induce a different behavior of the organics during the pyrolysis compared with the types of soils analyzed up today. For this reason, we systematically studied the pyrolysis of organic molecules trapped in magnesium sulfate, in the presence or absence of calcium perchlorate. Our results show that organics trapped in magnesium sulfate can undergo some oxidation and sulfuration during the pyrolysis. But these sulfates are also shown to protect organics trapped inside the crystal lattice and/or present in fluid inclusions from the oxidation induced by the decomposition of calcium perchlorate and probably other oxychlorine phases currently detected on Mars. Trapped organics may also be protected from degradation processes induced by other minerals present in the sample, at least until these organics are released from the pyrolyzed sulfate mineral ( approximately 700 degrees C in our experiment). Hence, we suggest magnesium sulfate as one of the minerals to target in priority for the search of organic molecules by the Curiosity and ExoMars 2018 rovers. Abstract Copyright (2015), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Planets AU - Francois, Pascaline AU - Szopa, C AU - Buch, A AU - Coll, P AU - McAdam, Amy C AU - Mahaffy, P R AU - Freissinet, C AU - Glavin, D P AU - Navarro-Gonzalez, R AU - Cabane, M Y1 - 2016/01// PY - 2016 DA - January 2016 SP - 61 EP - 74 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 1 SN - 2169-9097, 2169-9097 KW - magnesium sulfates KW - lattice KW - ExoMars Rover KW - Mars KW - perchlorate KW - terrestrial planets KW - planets KW - organic compounds KW - detection KW - pyrolysis KW - Curiosity Rover KW - Mars Science Laboratory KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800396000?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Planets&rft.atitle=Magnesium+sulfate+as+a+key+mineral+for+the+detection+of+organic+molecules+on+Mars+using+pyrolysis&rft.au=Francois%2C+Pascaline%3BSzopa%2C+C%3BBuch%2C+A%3BColl%2C+P%3BMcAdam%2C+Amy+C%3BMahaffy%2C+P+R%3BFreissinet%2C+C%3BGlavin%2C+D+P%3BNavarro-Gonzalez%2C+R%3BCabane%2C+M&rft.aulast=Francois&rft.aufirst=Pascaline&rft.date=2016-01-01&rft.volume=121&rft.issue=1&rft.spage=61&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Planets&rft.issn=21699097&rft_id=info:doi/10.1002%2F2015JE004884 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292169-9100 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 49 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2016-06-30 N1 - SubjectsTermNotLitGenreText - Curiosity Rover; detection; ExoMars Rover; lattice; magnesium sulfates; Mars; Mars Science Laboratory; organic compounds; perchlorate; planets; pyrolysis; terrestrial planets DO - http://dx.doi.org/10.1002/2015JE004884 ER - TY - JOUR T1 - The origin of amino acids in lunar regolith samples AN - 1793209126; 2016-046298 AB - We analyzed the amino acid content of seven lunar regolith samples returned by the Apollo 16 and Apollo 17 missions and stored under NASA curation since collection using ultrahigh-performance liquid chromatography with fluorescence detection and time-of-flight mass spectrometry. Consistent with results from initial analyses shortly after collection in the 1970s, we observed amino acids at low concentrations in all of the curated samples, ranging from 0.2 parts-per-billion (ppb) to 42.7 ppb in hot-water extracts and 14.5-651.1 ppb in 6 M HCl acid-vapor-hydrolyzed, hot-water extracts. Amino acids identified in the Apollo soil extracts include glycine, d- and l-alanine, d- and l-aspartic acid, d- and l-glutamic acid, d- and l-serine, l-threonine, and l-valine, all of which had previously been detected in lunar samples, as well as several compounds not previously identified in lunar regoliths: alpha -aminoisobutyric acid (AIB), d- and l-beta -amino-n-butyric acid (beta -ABA), dl-alpha -amino-n-butyric acid, gamma -amino-n-butyric acid, beta -alanine, and epsilon -amino-n-caproic acid. We observed an excess of the l enantiomer in most of the detected proteinogenic amino acids, but racemic alanine and racemic beta -ABA were present in some samples. We also examined seven samples from Apollo 15, 16, and 17 that had been previously allocated to a non-curation laboratory, as well as two samples of terrestrial dunite from studies of lunar module engine exhaust that had been stored in the same laboratory. The amino acid content of these samples suggested that contamination had occurred during non-curatorial storage. We measured the compound-specific carbon isotopic ratios of glycine, beta -alanine, and l-alanine in Apollo regolith sample 70011 and found values of -21 ppm to -33 ppm. These values are consistent with those seen in terrestrial biology and, together with the enantiomeric compositions of the proteinogenic amino acids, suggest that terrestrial biological contamination is a primary source of the amino acids in these samples. However, the presence of the non-proteinogenic amino acids such as AIB and beta -ABA suggests the possibility of some contribution from exogenous sources. We did not observe a correlation of amino acid content with proximity to the Apollo 17 lunar module, implying that lunar module exhaust was not a primary source of amino acid precursors. Solar-wind-implanted precursors such as HCN also appear to be at most a minor contributor, given a lack of correlation between amino acid content and soil maturity (as measured by I (sub s) /FeO ratio) and the differences between the delta (super 13) C values of the amino acids and the solar wind. Abstract Copyright (2016) Elsevier, B.V. JF - Geochimica et Cosmochimica Acta AU - Elsila, Jamie E AU - Callahan, Michael P AU - Dworkin, Jason P AU - Glavin, Daniel P AU - McLain, Hannah L AU - Noble, Sarah K AU - Gibson, Everett K, Jr Y1 - 2016/01/01/ PY - 2016 DA - 2016 Jan 01 SP - 357 EP - 369 PB - Elsevier, New York, NY VL - 172 SN - 0016-7037, 0016-7037 KW - isotopes KW - igneous rocks KW - solar wind KW - mass spectra KW - Apollo Program KW - stable isotopes KW - plutonic rocks KW - carbon KW - amino acids KW - ultraviolet spectra KW - spectra KW - chemical composition KW - dunite KW - lunar soils KW - Moon KW - isotope ratios KW - biochemistry KW - liquid chromatograms KW - C-13/C-12 KW - cosmochemistry KW - correlation KW - ultramafics KW - organic compounds KW - organic acids KW - lunar samples KW - chromatograms KW - peridotites KW - regolith KW - Apollo 17 KW - Apollo 16 KW - 04:Extraterrestrial geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1793209126?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=The+origin+of+amino+acids+in+lunar+regolith+samples&rft.au=Elsila%2C+Jamie+E%3BCallahan%2C+Michael+P%3BDworkin%2C+Jason+P%3BGlavin%2C+Daniel+P%3BMcLain%2C+Hannah+L%3BNoble%2C+Sarah+K%3BGibson%2C+Everett+K%2C+Jr&rft.aulast=Elsila&rft.aufirst=Jamie&rft.date=2016-01-01&rft.volume=172&rft.issue=&rft.spage=357&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2015.10.008 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 61 N1 - PubXState - NY N1 - Document feature - illus. incl. 5 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-06-02 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - amino acids; Apollo 16; Apollo 17; Apollo Program; biochemistry; C-13/C-12; carbon; chemical composition; chromatograms; correlation; cosmochemistry; dunite; igneous rocks; isotope ratios; isotopes; liquid chromatograms; lunar samples; lunar soils; mass spectra; Moon; organic acids; organic compounds; peridotites; plutonic rocks; regolith; solar wind; spectra; stable isotopes; ultramafics; ultraviolet spectra DO - http://dx.doi.org/10.1016/j.gca.2015.10.008 ER - TY - JOUR T1 - Simulation of cooling and pressure effects on inflated pahoehoe lava flows AN - 1793208972; 2016-047403 AB - Pahoehoe lobes are often emplaced by the advance of discrete toes accompanied by inflation of the lobe surface. Many random effects complicate modeling lobe emplacement, such as the location and orientation of toe breakouts, their dimensions, mechanical strength of the crust, microtopography, and a host of other factors. Models that treat the movement of lava parcels as a random walk have explained some of the overall features of emplacement. However, cooling of the surface and internal pressurization of the fluid interior have not been modeled. This work reports lobe simulations that explicitly incorporate (1) cooling of surface lava parcels, (2) the propensity of breakouts to occur at warmer margins that are mechanically weaker than cooler ones, and (3) the influence of internal pressurization associated with inflation. The surface temperature is interpreted as a surrogate for the mechanic strength of the crust at each location and is used to determine the probability of a lava parcel transfer from that location. When only surface temperature is considered, the morphology and dimensions of simulated lobes are indistinguishable from equiprobable simulations. However, inflation within a lobe transmits pressure to all connected fluid locations with the warmer margins being most susceptible to breakouts and expansion. Simulations accounting for internal pressurization feature morphologies and dimensions that are dramatically different from the equiprobable and temperature-dependent models. Even on flat subsurfaces the pressure-dependent model produces elongate lobes with distinct directionality. Observables such as topographic profiles, aspect ratios, and maximum extents should be readily distinguishable in the field. Abstract Copyright (2015), . American Geophysical Union. All Rights Reserved. JF - Journal of Geophysical Research: Solid Earth AU - Glaze, Lori S AU - Baloga, Stephen M Y1 - 2016/01// PY - 2016 DA - January 2016 SP - 38 EP - 47 PB - Wiley-Blackwell for American Geophysical Union, Washington, DC VL - 121 IS - 1 SN - 2169-9313, 2169-9313 KW - pressure KW - numerical models KW - lava flows KW - statistical analysis KW - mechanical properties KW - Mars KW - emplacement KW - temperature KW - terrestrial planets KW - planets KW - topography KW - lava KW - cooling KW - terrestrial comparison KW - pahoehoe KW - crust KW - P-T conditions KW - 04:Extraterrestrial geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1793208972?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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%3A+Solid+Earth&rft.atitle=Simulation+of+cooling+and+pressure+effects+on+inflated+pahoehoe+lava+flows&rft.au=Glaze%2C+Lori+S%3BBaloga%2C+Stephen+M&rft.aulast=Glaze&rft.aufirst=Lori&rft.date=2016-01-01&rft.volume=121&rft.issue=1&rft.spage=38&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Solid+Earth&rft.issn=21699313&rft_id=info:doi/10.1002%2F2015JB012383 L2 - http://agupubs.onlinelibrary.wiley.com/agu/jgr/journal/10.1002/(ISSN)2169-9356/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 32 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2016-06-02 N1 - SubjectsTermNotLitGenreText - cooling; crust; emplacement; lava; lava flows; Mars; mechanical properties; numerical models; P-T conditions; pahoehoe; planets; pressure; statistical analysis; temperature; terrestrial comparison; terrestrial planets; topography DO - http://dx.doi.org/10.1002/2015JB012383 ER - TY - JOUR T1 - Crystal accumulation in a 4.2 Ga lunar impact melt AN - 1793204637; 2016-046302 AB - The ages of lunar impact basins and the role of fractional crystallization in producing compositional heterogeneity of lunar melt sheets are long-standing problems with significant implications for solar system dynamics and the petrologic evolution of the lunar crust. Here we document the formation of a basin-scale impact on the Moon at 4.20 + or - 0.07 Ga based on the (super 147) Sm- (super 143) Nd isochron age of a magnesian, noritic anorthosite melt rock from lunar breccia 67955. Major element compositions of plagioclase and mafic silicates in the melt rock imply a substantial component of primary Mg-suite cumulates or related lithologies in the pre-impact crustal stratigraphy. Trace element compositions of the plagioclase, including diagnostic ratios such as Sr/Ba, are also mostly similar to those in plagioclase from Mg-suite cumulates, with a small number of grains trending toward compositions observed in ferroan anorthosites. Mineral-melt distribution coefficients applied to trace element compositions of the 67955 plagioclase and pyroxene predict parental melt compositions that contrast strongly with the bulk rock. Compared to the whole rock, parental melts calculated from the plagioclase are enriched in REE (Sigma REE (sub La-Yb) = 131-885, average 619 ppm vs. 39.8 ppm) and they have more fractionated REE patterns (La/Yb (sub n) = 1.2-9.8, average 4.9 vs. 1.5) with deep negative Eu anomalies (Eu/Eu (super *) = 0.09-0.40 vs. 1.36). Trace element data for the pyroxenes also imply incompatible-element enriched parental melts. Subsolidus equilibration between the plagioclase and the pyroxene apparently rotated the REE patterns, but the conclusion that the parental melt was highly enriched in REE relative to the whole rock appears robust. Quantitative modeling shows that fractional crystallization of the 67955 whole rock composition cannot reproduce the range of Ba, Sr, Ti, and La concentrations measured in the 67955 plagioclase. Rather, the models require an initial melt composition that was strongly enriched in these elements, and they suggest that fractional crystallization became less efficient as crystallization proceeded. The contrast between the inferred parental melt composition and the bulk rock implies formation of the 67955 noritic anorthosite as a crystal cumulate, and that the cogenetic residual melt was strongly enriched in incompatible elements. If so, this would be the first documented example of fractional crystallization in a lunar impact melt sheet. The petrological and geochemical characteristics of the 67955 noritic anorthosite suggest that it formed by an impact in the Procellarum-KREEP Terrane, and was transported to the Apollo 16 site as Imbrium ejecta. Inheritance of ejecta related to this pre-Imbrium basin may contribute to the common occurrence of approximately 4.2 Ga (super 40) Ar- (super 39) Ar plateau ages in breccia clasts and regolith fragments from the rim of North Ray crater. In that case, those data may provide no constraints on the age of the Nectaris basin, despite its proximity to the Apollo 16 site. Abstract Copyright (2016) Elsevier, B.V. JF - Geochimica et Cosmochimica Acta AU - Norman, Marc D AU - Taylor, L A AU - Shih, C Y AU - Nyquist, L E Y1 - 2016/01/01/ PY - 2016 DA - 2016 Jan 01 SP - 410 EP - 429 PB - Elsevier, New York, NY VL - 172 SN - 0016-7037, 0016-7037 KW - North Ray Crater KW - volcanic rocks KW - impact features KW - igneous rocks KW - mass spectra KW - Apollo Program KW - melts KW - Rb/Sr KW - impact melts KW - plutonic rocks KW - phase equilibria KW - dates KW - cumulates KW - basalts KW - basins KW - absolute age KW - Archean KW - spectra KW - rare earths KW - mineral assemblages KW - trace elements KW - norite KW - Mare Nectaris KW - Ar/Ar KW - Precambrian KW - Moon KW - textures KW - cosmochemistry KW - Procellarum Terrane KW - anorthosite KW - ICP mass spectra KW - KREEP KW - Sm/Nd KW - deposition KW - metals KW - magmas KW - impact craters KW - gabbros KW - fractional crystallization KW - crystal chemistry KW - Apollo 16 KW - 04:Extraterrestrial geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1793204637?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Crystal+accumulation+in+a+4.2+Ga+lunar+impact+melt&rft.au=Norman%2C+Marc+D%3BTaylor%2C+L+A%3BShih%2C+C+Y%3BNyquist%2C+L+E&rft.aulast=Norman&rft.aufirst=Marc&rft.date=2016-01-01&rft.volume=172&rft.issue=&rft.spage=410&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2015.09.021 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 135 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-06-02 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - absolute age; anorthosite; Apollo 16; Apollo Program; Ar/Ar; Archean; basalts; basins; cosmochemistry; crystal chemistry; cumulates; dates; deposition; fractional crystallization; gabbros; ICP mass spectra; igneous rocks; impact craters; impact features; impact melts; KREEP; magmas; Mare Nectaris; mass spectra; melts; metals; mineral assemblages; Moon; norite; North Ray Crater; phase equilibria; plutonic rocks; Precambrian; Procellarum Terrane; rare earths; Rb/Sr; Sm/Nd; spectra; textures; trace elements; volcanic rocks DO - http://dx.doi.org/10.1016/j.gca.2015.09.021 ER - TY - JOUR T1 - Evaluation of the Snow Simulations from the Community Land Model, Version 4 (CLM4) AN - 1790969537; PQ0003081536 AB - This paper evaluates the simulation of snow by the Community Land Model, version 4 (CLM4), the land model component of the Community Earth System Model, version 1.0.4 (CESM1.0.4). CLM4 was run in an offline mode forced with the corrected land-only replay of the Modern-Era Retrospective Analysis for Research and Applications (MERRA-Land) and the output was evaluated for the period from January 2001 to January 2011 over the Northern Hemisphere poleward of 30 degree N. Simulated snow-cover fraction (SCF), snow depth, and snow water equivalent (SWE) were compared against a set of observations including the Moderate Resolution Imaging Spectroradiometer (MODIS) SCF, the Interactive Multisensor Snow and Ice Mapping System (IMS) snow cover, the Canadian Meteorological Centre (CMC) daily snow analysis products, snow depth from the National Weather Service Cooperative Observer (COOP) program, and Snowpack Telemetry (SNOTEL) SWE observations. CLM4 SCF was converted into snow-cover extent (SCE) to compare with MODIS SCE. It showed good agreement, with a correlation coefficient of 0.91 and an average bias of -1.54 10 super(2) km super(2). Overall, CLM4 agreed well with IMS snow cover, with the percentage of correctly modeled snow-no snow being 94%. CLM4 snow depth and SWE agreed reasonably well with the CMC product, with the average bias (RMSE) of snow depth and SWE being 0.044 m (0.19 m) and -0.010 m (0.04 m), respectively. CLM4 underestimated SNOTEL SWE and COOP snow depth. This study demonstrates the need to improve the CLM4 snow estimates and constitutes a benchmark against which improvement of the model through data assimilation can be measured. JF - Journal of Hydrometeorology AU - Toure, Ally M AU - Rodell, Matthew AU - Yang, Zong-Liang AU - Beaudoing, Hiroko AU - Kim, Edward AU - Zhang, Yongfei AD - Hydrological Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, Maryland Y1 - 2016/01// PY - 2016 DA - January 2016 SP - 153 EP - 170 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 17 IS - 1 SN - 1525-755X, 1525-755X KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Models and modeling KW - Land surface model KW - Model errors KW - Meteorological data KW - Snow cover depth KW - Correlations KW - ice cover KW - Snow Cover KW - Data assimilation KW - Evaluation KW - Telemetry KW - MODIS (Moderate Resolution Imaging Spectrometer) KW - National Weather Service KW - Mapping KW - Weather forecasting KW - Modelling KW - Weather KW - Snow KW - Snow and ice KW - Spectral analysis KW - Snow Depth KW - Snow cover KW - Imaging techniques KW - Model Studies KW - Hydrometeorological research KW - Satellite data KW - Numerical simulations KW - Snow cover water equivalent KW - Snow-Water Equivalent KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General KW - Q2 09171:Dynamics of lakes and rivers KW - M2 556.12:Precipitation (556.12) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790969537?accountid=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=Evaluation+of+the+Snow+Simulations+from+the+Community+Land+Model%2C+Version+4+%28CLM4%29&rft.au=Toure%2C+Ally+M%3BRodell%2C+Matthew%3BYang%2C+Zong-Liang%3BBeaudoing%2C+Hiroko%3BKim%2C+Edward%3BZhang%2C+Yongfei&rft.aulast=Toure&rft.aufirst=Ally&rft.date=2016-01-01&rft.volume=17&rft.issue=1&rft.spage=153&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrometeorology&rft.issn=1525755X&rft_id=info:doi/10.1175%2FJHM-D-14-0165.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Number of references - 78 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Snow; Telemetry; Mapping; Weather forecasting; Imaging techniques; Modelling; Meteorological data; Snow cover depth; Snow and ice; Spectral analysis; Correlations; Snow cover; Data assimilation; Satellite data; Hydrometeorological research; Numerical simulations; Snow cover water equivalent; MODIS (Moderate Resolution Imaging Spectrometer); National Weather Service; Evaluation; Weather; ice cover; Snow-Water Equivalent; Snow Depth; Snow Cover; Model Studies DO - http://dx.doi.org/10.1175/JHM-D-14-0165.1 ER - TY - JOUR T1 - Global Precipitation Estimates from Cross-Track Passive Microwave Observations Using a Physically Based Retrieval Scheme AN - 1790969256; PQ0003081550 AB - The estimation of precipitation across the globe from satellite sensors provides a key resource in the observation and understanding of our climate system. Estimates from all pertinent satellite observations are critical in providing the necessary temporal sampling. However, consistency in these estimates from instruments with different frequencies and resolutions is critical. This paper details the physically based retrieval scheme to estimate precipitation from cross-track (XT) passive microwave (PM) sensors on board the constellation satellites of the Global Precipitation Measurement (GPM) mission. Here the Goddard profiling algorithm (GPROF), a physically based Bayesian scheme developed for conically scanning (CS) sensors, is adapted for use with XT PM sensors. The present XT GPROF scheme utilizes a model-generated database to overcome issues encountered with an observational database as used by the CS scheme. The model database ensures greater consistency across meteorological regimes and surface types by providing a more comprehensive set of precipitation profiles. The database is corrected for bias against the CS database to ensure consistency in the final product. Statistical comparisons over western Europe and the United States show that the XT GPROF estimates are comparable with those from the CS scheme. Indeed, the XT estimates have higher correlations against surface radar data, while maintaining similar root-mean-square errors. Latitudinal profiles of precipitation show the XT estimates are generally comparable with the CS estimates, although in the southern midlatitudes the peak precipitation is shifted equatorward while over the Arctic large differences are seen between the XT and the CS retrievals. JF - Journal of Hydrometeorology AU - Kidd, Chris AU - Matsui, Toshihisa AU - Chern, Jiundar AU - Mohr, Karen AU - Kummerow, Chris AU - Randel, Dave AD - Earth System Science Interdisciplinary Center, University of Maryland, College Park, College Park, and NASA Goddard Space Flight Center, Greenbelt, Maryland Y1 - 2016/01// PY - 2016 DA - January 2016 SP - 383 EP - 400 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 17 IS - 1 SN - 1525-755X, 1525-755X KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Atm/Ocean Structure/ Phenomena KW - Precipitation KW - Rainfall KW - Physical Meteorology and Climatology KW - Radiances KW - Observational techniques and algorithms KW - Microwave observations KW - Satellite observations KW - Models and modeling KW - Cloud resolving models KW - IPWG-7 KW - Remote Sensing KW - Sensors KW - Algorithms KW - Statistical analysis KW - Correlations KW - Microwaves KW - ANE, Europe KW - Modelling KW - Atmospheric precipitations KW - Satellite Technology KW - Mathematical models KW - Climates KW - Profiling KW - Global precipitation KW - Satellite instrumentation KW - Model Studies KW - PN, Arctic KW - Databases KW - USA KW - Hydrometeorological research KW - Satellite data KW - Meteorological regimes KW - Profiles KW - Radar KW - AQ 00001:Water Resources and Supplies KW - M2 551.510.42:Air Pollution (551.510.42) KW - SW 0810:General KW - Q2 09171:Dynamics of lakes and rivers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790969256?accountid=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=Global+Precipitation+Estimates+from+Cross-Track+Passive+Microwave+Observations+Using+a+Physically+Based+Retrieval+Scheme&rft.au=Kidd%2C+Chris%3BMatsui%2C+Toshihisa%3BChern%2C+Jiundar%3BMohr%2C+Karen%3BKummerow%2C+Chris%3BRandel%2C+Dave&rft.aulast=Kidd&rft.aufirst=Chris&rft.date=2016-01-01&rft.volume=17&rft.issue=1&rft.spage=383&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrometeorology&rft.issn=1525755X&rft_id=info:doi/10.1175%2FJHM-D-15-0051.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Number of references - 49 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Atmospheric precipitations; Mathematical models; Microwaves; Sensors; Profiling; Modelling; Satellite data; Hydrometeorological research; Meteorological regimes; Radar; Correlations; Statistical analysis; Algorithms; Global precipitation; Precipitation; Satellite instrumentation; Remote Sensing; Satellite Technology; Databases; Profiles; Climates; Model Studies; PN, Arctic; USA; ANE, Europe DO - http://dx.doi.org/10.1175/JHM-D-15-0051.1 ER - TY - JOUR T1 - Low water contents in diamond mineral inclusions; proto-genetic origin in a dry cratonic lithosphere AN - 1789752732; 2016-040100 AB - The mantle is the major reservoir of Earth's water, hosted within Nominally Anhydrous Minerals (NAMs) (e.g., Bell and Rossman, 1992; Peslier et al., 2010; Peslier, 2010; Nestola and Smyth, 2015), in the form of hydrogen bonded to the silicate's structural oxygen. From whence cometh this water? Is the water in these minerals representative of the Earth's primitive upper mantle or did it come from melting events linked to crustal formation or to more recent metasomatic/re-fertilization events? During diamond formation, NAMs are encapsulated at hundreds of kilometers depth within the mantle, thereby possibly shielding and preserving their pristine water contents from re-equilibrating with fluids and melts percolating through the lithospheric mantle. Here we show that the NAMs included in diamonds from six locales on the Siberian Craton contain measurable and variable H (sub 2) O concentrations from 2 to 34 parts per million by weight (ppmw) in olivine, 7 to 276 ppmw in clinopyroxene, and 11-17 ppmw in garnets. Our results suggest that if the inclusions were in equilibrium with the diamond-forming fluid, the water fugacity would have been unrealistically low. Instead, we consider the H (sub 2) O contents of the inclusions, shielded by diamonds, as pristine representatives of the residual mantle prior to encapsulation, and indicative of a protogenetic origin for the inclusions. Hydrogen diffusion in the diamond does not appear to have modified these values significantly. The H (sub 2) O contents of NAMs in mantle xenoliths may represent some later metasomatic event(s), and are not always representative of most of the continental lithospheric mantle. Results from the present study also support the conclusions of Peslier et al. (2010) and Novella et al. (2015) that the dry nature of the SCLM of a craton may provide stabilization of its thickened continental roots. Abstract Copyright (2016) Elsevier, B.V. JF - Earth and Planetary Science Letters AU - Taylor, Lawrence A AU - Logvinova, Alla M AU - Howarth, Geoffrey H AU - Liu, Yang AU - Peslier, Anne H AU - Rossman, George R AU - Guan, Yunbin AU - Chen, Yang AU - Sobolev, Nikolay V Y1 - 2016/01/01/ PY - 2016 DA - 2016 Jan 01 SP - 125 EP - 132 PB - Elsevier, Amsterdam VL - 433 SN - 0012-821X, 0012-821X KW - silicates KW - ion probe data KW - garnet group KW - mass spectra KW - mantle KW - olivine group KW - Russian Federation KW - fugacity KW - electron probe data KW - pyroxene group KW - Commonwealth of Independent States KW - clinopyroxene KW - olivine KW - inclusions KW - orthosilicates KW - Siberian Platform KW - water content KW - spectra KW - Asia KW - xenoliths KW - chain silicates KW - water KW - upper mantle KW - diffusion KW - lithosphere KW - cratons KW - nesosilicates KW - mineral inclusions KW - hydrogen KW - 18:Solid-earth geophysics KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789752732?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Low+water+contents+in+diamond+mineral+inclusions%3B+proto-genetic+origin+in+a+dry+cratonic+lithosphere&rft.au=Taylor%2C+Lawrence+A%3BLogvinova%2C+Alla+M%3BHowarth%2C+Geoffrey+H%3BLiu%2C+Yang%3BPeslier%2C+Anne+H%3BRossman%2C+George+R%3BGuan%2C+Yunbin%3BChen%2C+Yang%3BSobolev%2C+Nikolay+V&rft.aulast=Taylor&rft.aufirst=Lawrence&rft.date=2016-01-01&rft.volume=433&rft.issue=&rft.spage=125&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2015.10.042 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 53 N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2016-05-19 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - Asia; chain silicates; clinopyroxene; Commonwealth of Independent States; cratons; diffusion; electron probe data; fugacity; garnet group; hydrogen; inclusions; ion probe data; lithosphere; mantle; mass spectra; mineral inclusions; nesosilicates; olivine; olivine group; orthosilicates; pyroxene group; Russian Federation; Siberian Platform; silicates; spectra; upper mantle; water; water content; xenoliths DO - http://dx.doi.org/10.1016/j.epsl.2015.10.042 ER - TY - JOUR T1 - A space-based, high-resolution view of notable changes in urban NO sub(x) pollution around the world (2005-2014) AN - 1776655590; PQ0002780339 AB - Nitrogen oxides (NO sub(x)=NO+NO sub(2)) are produced during combustion processes and, thus may serve as a proxy for fossil fuel-based energy usage and coemitted greenhouse gases and other pollutants. We use high-resolution nitrogen dioxide (NO sub(2)) data from the Ozone Monitoring Instrument (OMI) to analyze changes in urban NO sub(2) levels around the world from 2005 to 2014, finding complex heterogeneity in the changes. We discuss several potential factors that seem to determine these NO sub(x) changes. First, environmental regulations resulted in large decreases. The only large increases in the United States may be associated with three areas of intensive energy activity. Second, elevated NO sub(2) levels were observed over many Asian, tropical, and subtropical cities that experienced rapid economic growth. Two of the largest increases occurred over recently expanded petrochemical complexes in Jamnagar (India) and Daesan (Korea). Third, pollution transport from China possibly influenced the Republic of Korea and Japan, diminishing the impact of local pollution controls. However, in China, there were large decreases over Beijing, Shanghai, and the Pearl River Delta, which were likely associated with local emission control efforts. Fourth, civil unrest and its effect on energy usage may have resulted in lower NO sub(2) levels in Libya, Iraq, and Syria. Fifth, spatial heterogeneity within several megacities may reflect mixed efforts to cope with air quality degradation. We also show the potential of high-resolution data for identifying NO sub(x) emission sources in regions with a complex mix of sources. Intensive monitoring of the world's tropical/subtropical megacities will remain a priority, as their populations and emissions of pollutants and greenhouse gases are expected to increase significantly. Key Points * Notable changes in NO sub(2) levels globally and their causes over last decade * High-resolution OMI NO sub(2) data show large spatial heterogeneity in world's megacities * There is a strong need to develop observational networks in tropics and subtropics JF - Journal of Geophysical Research: Atmospheres AU - Duncan, Bryan N AU - Lamsal, Lok N AU - Thompson, Anne M AU - Yoshida, Yasuko AU - Lu, Zifeng AU - Streets, David G AU - Hurwitz, Margaret M AU - Pickering, Kenneth E AD - NASA Goddard Space Flight Center, Greenbelt, Maryland, USA. Y1 - 2016/01// PY - 2016 DA - January 2016 SP - 976 EP - 996 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 121 IS - 2 SN - 2169-897X, 2169-897X KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - INW, China, People's Rep., Shanghai KW - Economic Growth KW - MED, Syria KW - Freshwater KW - Nitrogen dioxide KW - ISW, India KW - USA, Louisiana, Pearl R. KW - Emissions KW - Freshwater pollution KW - ISW, Iraq KW - Atmospheric pollution KW - Environmental impact KW - Greenhouse effect KW - Combustion KW - INW, Korea, Rep. KW - Monitoring KW - Greenhouse gases KW - Oxides KW - Nitrogen KW - China, People's Rep., Beijing KW - INW, Japan KW - Pollution monitoring KW - Ozone monitoring KW - China, People's Rep., Zhu R. KW - MED, Libya KW - Climate change KW - Petrochemicals KW - Air quality KW - Deltas KW - Pollutants KW - Energy usage KW - Regulations KW - Heterogeneity KW - Environmental regulations KW - Emission control KW - Water pollution KW - Air pollution KW - USA KW - Energy KW - Nitrogen compounds KW - Pollution control KW - Spatial Heterogeneity KW - Q2 09243:Structure, mechanics and thermodynamics KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1776655590?accountid=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+Geophysical+Research%3A+Atmospheres&rft.atitle=A+space-based%2C+high-resolution+view+of+notable+changes+in+urban+NO+sub%28x%29+pollution+around+the+world+%282005-2014%29&rft.au=Duncan%2C+Bryan+N%3BLamsal%2C+Lok+N%3BThompson%2C+Anne+M%3BYoshida%2C+Yasuko%3BLu%2C+Zifeng%3BStreets%2C+David+G%3BHurwitz%2C+Margaret+M%3BPickering%2C+Kenneth+E&rft.aulast=Duncan&rft.aufirst=Bryan&rft.date=2016-01-01&rft.volume=121&rft.issue=2&rft.spage=976&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2015JD024121 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-03-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Pollution monitoring; Pollutants; Climate change; Environmental impact; Greenhouse effect; Nitrogen compounds; Oxides; Freshwater pollution; Spatial Heterogeneity; Ozone monitoring; Atmospheric pollution; Air quality; Greenhouse gases; Pollution control; Environmental regulations; Petrochemicals; Emission control; Water pollution; Combustion; Air pollution; Nitrogen dioxide; Energy usage; Energy; Emissions; Economic Growth; Regulations; Deltas; Monitoring; Heterogeneity; Nitrogen; China, People's Rep., Beijing; INW, Japan; INW, China, People's Rep., Shanghai; USA; ISW, Iraq; ISW, India; China, People's Rep., Zhu R.; MED, Libya; USA, Louisiana, Pearl R.; MED, Syria; INW, Korea, Rep.; Freshwater DO - http://dx.doi.org/10.1002/2015JD024121 ER - TY - JOUR T1 - The W-WO (sub 2) oxygen fugacity buffer (WWO) at high pressure and temperature; implications for f (sub O2) buffering and metal-silicate partitioning AN - 1773799636; 2016-025629 AB - Synchrotron X-ray diffraction data were obtained to simultaneously measure unit-cell volumes of W and WO (sub 2) at pressures and temperatures up to 70 GPa and 2300 K. Both W and WO (sub 2) unit-cell volume data were fit to Mie-Gruneisen equations of state; parameters for W are K (sub T) =307 (+ or -0.4) GPa, K' (sub T) =4.05 (+ or -0.04), gamma (sub 0) =1.61 (+ or -0.03), and q=1.54 (+ or -0.13). Three phases were observed in WO (sub 2) with structures in the P2 (sub 1) /c, Pnma, and C2/c space groups. The transition pressures are 4 and 32 GPa for the P2 (sub 1) /c-Pnma and Pnma-C2/c phase changes, respectively. The P2 (sub 1) /c and Pnma phases have previously been described, whereas the C2/c phase is newly described here. Equations of state were fitted for these phases over their respective pressure ranges yielding the parameters K (sub T) =238 (+ or -7), 230 (+ or -5), 304 (+ or -3) GPa, K' (sub T) =4 (fixed), 4 (fixed), 4 (fixed) GPa, gamma (sub 0) =1.45 (+ or -0.18), 1.22 (+ or -0.07), 1.21 (+ or -0.12), and q=1 (fixed), 2.90 (+ or -1.5), 1 (fixed) for the P2 (sub 1) /c, Pnma, and C2/c phases, respectively. The W-WO (sub 2) buffer (WWO) was extended to high pressure using these W and WO (sub 2) equations of state. The T-f (sub O2) slope of the WWO buffer along isobars is positive from 1000 to 2500 K with increasing pressure up to at least 60 GPa. The WWO buffer is at a higher f (sub O2) than the iron-wustite (IW) buffer at pressures lower than 40 GPa, and the magnitude of this difference decreases at higher pressures. This implies an increasingly lithophile character for W at higher pressures. The WWO buffer was quantitatively applied to W metal-silicate partitioning by using the WWO-IW buffer difference in combination with literature data on W metal-silicate partitioning to model the exchange coefficient (KD) for the Fe-W exchange reaction. This approach captures the non-linear pressure dependence of W metal-silicate partitioning using the WWO-IW buffer difference. Calculation of KD along a peridotite liquidus predicts a decrease in W siderophility at higher pressures that supports the qualitative behavior predicted by the WWO-IW buffer difference, and agrees with findings of others. Comparing the competing effects of temperature and pressure the results here indicate that pressure exerts a greater effect on W metal-silicate partitioning. JF - American Mineralogist AU - Shofner, Gregory A AU - Campbell, Andrew J AU - Danielson, Lisa R AU - Righter, Kevin AU - Fischer, Rebecca A AU - Wang, Yanbin AU - Prakapenka, Vitali Y1 - 2016/01// PY - 2016 DA - January 2016 SP - 211 EP - 221 PB - Mineralogical Society of America, Washington, DC VL - 101 IS - 1 SN - 0003-004X, 0003-004X KW - silicates KW - experimental studies KW - pressure KW - oxygen KW - X-ray diffraction data KW - numerical analysis KW - buffers KW - carbides KW - high pressure KW - fugacity KW - synchrotron radiation KW - partitioning KW - tungsten KW - Gruneisen parameters KW - metals KW - oxides KW - alloys KW - equations of state KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773799636?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+W-WO+%28sub+2%29+oxygen+fugacity+buffer+%28WWO%29+at+high+pressure+and+temperature%3B+implications+for+f+%28sub+O2%29+buffering+and+metal-silicate+partitioning&rft.au=Shofner%2C+Gregory+A%3BCampbell%2C+Andrew+J%3BDanielson%2C+Lisa+R%3BRighter%2C+Kevin%3BFischer%2C+Rebecca+A%3BWang%2C+Yanbin%3BPrakapenka%2C+Vitali&rft.aulast=Shofner&rft.aufirst=Gregory&rft.date=2016-01-01&rft.volume=101&rft.issue=1&rft.spage=211&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam-2016-5328 L2 - http://www.minsocam.org/MSA/AmMin/TOC/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 41 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2016-03-17 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - alloys; buffers; carbides; equations of state; experimental studies; fugacity; Gruneisen parameters; high pressure; metals; numerical analysis; oxides; oxygen; partitioning; pressure; silicates; synchrotron radiation; tungsten; X-ray diffraction data DO - http://dx.doi.org/10.2138/am-2016-5328 ER - TY - JOUR T1 - The basalt pipes of the Tunguska Basin (Siberia, Russia); high temperature processes and volatile degassing into the end-Permian atmosphere AN - 1773796718; 2016-023431 AB - A number of mechanisms have been proposed to explain the end-Permian crisis. Many of them explore the link between this catastrophe and the Siberian Traps. We test the hypothesis that eruption of thermogenic gas generated in contact aureoles around igneous sills intruded into evaporite sequences of the Tunguska Basin triggered the crisis. In particular, we test the idea that the aspect that breccia pipes represent conduits for voluminous gas migration from the deep basins to the atmosphere. This contribution sheds new light on the pipe formation based on new field and borehole observations and electron microscopy analyses. Of more than three hundred mapped magnetite-bearing basalt pipes, 43 are classified as diatremes. The diatremes are usually circular or elliptical, with multiple zones of brecciation reaching the surface, sometimes with preserved in-filled crater lakes. The pipe diameter on the surface varies from a few tens of meters for small single diatremes to about a kilometer. The largest crater lake area is 2.7 km (super 2) . We have conducted a detailed study of the breccias in the Sholokhovsk basalt pipe located within the Nepa potash deposit in the Tunguska Basin, Siberia, Russia (about N 59 degrees and E 107 degrees ) and find that the breccias are cemented by carbonate matrix (calcite, dolomite) and halite. Breccia clasts are altered at various temperatures, evidenced by growth of albite and garnet from basaltic glass, and diopside, garnet, magnetite and chlorine-bearing amphibole (up to 1.8% Cl) in altered magmatic clasts. These mineral assemblages suggest high temperature interactions with evaporites within the pipe conduits. The large number of pipes support that degassing of halogen-rich volatiles was a widespread and violent process with implications for the end-Permian crisis. Abstract Copyright (2016) Elsevier, B.V. JF - Palaeogeography, Palaeoclimatology, Palaeoecology AU - Polozov, Alexander G AU - Svensen, Henrik H AU - Planke, Sverre AU - Grishina, Svetlana N AU - Fristad, Kirsten E AU - Jerram, Dougal A Y1 - 2016/01/01/ PY - 2016 DA - 2016 Jan 01 SP - 51 EP - 64 PB - Elsevier, Amsterdam VL - 441 IS - Part 1 SN - 0031-0182, 0031-0182 KW - silicates KW - Nepa Deposit KW - garnet group KW - breccia pipes KW - temperature KW - electron probe data KW - Tunguska Basin KW - Siberia KW - sedimentary rocks KW - mineral composition KW - carbon KW - orthosilicates KW - basalt pipes KW - Nepa 6G Borehole KW - basaltic composition KW - Asia KW - degassing KW - chain silicates KW - apatite KW - Paleozoic KW - paleoatmosphere KW - C-13/C-12 KW - Siberian Traps KW - Upper Permian KW - intrusions KW - diagenesis KW - Sholokhovsk Pipe KW - petrography KW - carbonates KW - high temperature KW - oxygen KW - eastern Siberia KW - isotopes KW - Russian Federation KW - stable isotopes KW - diatremes KW - dolomite KW - Commonwealth of Independent States KW - volcanism KW - phreatomagmatism KW - oxides KW - zoning KW - chemically precipitated rocks KW - isotope ratios KW - cementation KW - amphibole group KW - phosphates KW - O-18/O-16 KW - pipes KW - Permian KW - evaporites KW - emplacement KW - calcite KW - nesosilicates KW - volatiles KW - boreholes KW - magnetite KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773796718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Palaeogeography%2C+Palaeoclimatology%2C+Palaeoecology&rft.atitle=The+basalt+pipes+of+the+Tunguska+Basin+%28Siberia%2C+Russia%29%3B+high+temperature+processes+and+volatile+degassing+into+the+end-Permian+atmosphere&rft.au=Polozov%2C+Alexander+G%3BSvensen%2C+Henrik+H%3BPlanke%2C+Sverre%3BGrishina%2C+Svetlana+N%3BFristad%2C+Kirsten+E%3BJerram%2C+Dougal+A&rft.aulast=Polozov&rft.aufirst=Alexander&rft.date=2016-01-01&rft.volume=441&rft.issue=Part+1&rft.spage=51&rft.isbn=&rft.btitle=&rft.title=Palaeogeography%2C+Palaeoclimatology%2C+Palaeoecology&rft.issn=00310182&rft_id=info:doi/10.1016%2Fj.palaeo.2015.06.035 L2 - http://www.sciencedirect.com/science/journal/00310182 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 81 N1 - Document feature - illus. incl. geol. sketch map N1 - Last updated - 2016-03-17 N1 - CODEN - PPPYAB N1 - SubjectsTermNotLitGenreText - amphibole group; apatite; Asia; basalt pipes; basaltic composition; boreholes; breccia pipes; C-13/C-12; calcite; carbon; carbonates; cementation; chain silicates; chemically precipitated rocks; Commonwealth of Independent States; degassing; diagenesis; diatremes; dolomite; eastern Siberia; electron probe data; emplacement; evaporites; garnet group; high temperature; intrusions; isotope ratios; isotopes; magnetite; mineral composition; Nepa 6G Borehole; Nepa Deposit; nesosilicates; O-18/O-16; orthosilicates; oxides; oxygen; paleoatmosphere; Paleozoic; Permian; petrography; phosphates; phreatomagmatism; pipes; Russian Federation; sedimentary rocks; Sholokhovsk Pipe; Siberia; Siberian Traps; silicates; stable isotopes; temperature; Tunguska Basin; Upper Permian; volatiles; volcanism; zoning DO - http://dx.doi.org/10.1016/j.palaeo.2015.06.035 ER - TY - JOUR T1 - Evaluation of the surface PM2.5 in Version 1 of the NASA MERRA Aerosol Reanalysis over the United States AN - 1762360344; PQ0002484793 AB - We use surface fine particulate matter (PM2.5) measurements collected by the United States Environmental Protection Agency (US EPA) and the Interagency Monitoring of Protected Visual Environments (IMPROVE) networks as independent validation for Version 1 of the Modern Era Retrospective analysis for Research and Applications Aerosol Reanalysis (MERRAero) developed by the Global Modeling Assimilation Office (GMAO). MERRAero is based on a version of the GEOS-5 model that is radiatively coupled to the Goddard Chemistry, Aerosol, Radiation, and Transport (GOCART) aerosol module and includes assimilation of bias corrected Aerosol Optical Depth (AOD) from Moderate Resolution Imaging Spectroradiometer (MODIS) sensors on both Terra and Aqua satellites. By combining the spatial and temporal coverage of GEOS-5 with observational constraints on AOD, MERRAero has the potential to provide improved estimates of PM2.5 compared to the model alone and with greater coverage than available observations. Importantly, assimilation of AOD data constrains the total column aerosol mass in MERRAero subject to assumptions about optical properties for each of the species represented in GOGART. However, single visible wavelength AOD data does not contain sufficient information content to correct errors in either aerosol vertical placement or composition, critical elements for a proper characterization of surface PM2.5. Despite this, we find that the data-assimilation equipped version of GEOS-5 better represents observed PM2.5 between 2003 and 2012 compared to the same version of the model without AOD assimilation. Compared to measurements from the EPA-AQS network, MERRAero shows better PM2.5 agreement with the IMPROVE network measurements, which are composed essentially of rural stations. Regardless the data network, MERRAero PM2.5 are closer to observation values during the summer while larger discrepancies are observed during the winter. Comparing MERRAero to PM2.5 data collected by the Chemical Speciation Network (CSN) offers greater insight on the species MERRAero predicts well and those for which there are biases relative to the EPA observations. Analysis of this speciated data indicates that the lack of nitrate emissions in MERRAero and an underestimation of carbonaceous emissions in the Western US explains much of the reanalysis bias during the winter. To further understand discrepancies between the reanalysis and observations, we use complimentary data to assess two important aspects of MERRAero that are of relevance to the diagnosis of PM2.5, in particular AOD and vertical structure. JF - Atmospheric Environment AU - Buchard, V AU - da Silva, AM AU - Randles, CA AU - Colarco, P AU - Ferrare, R AU - Hair, J AU - Hostetler, C AU - Tackett, J AU - Winker, D AD - NASA/Goddard Space Flight Center, Greenbelt, MD, USA Y1 - 2016/01// PY - 2016 DA - January 2016 SP - 100 EP - 111 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 125 SN - 1352-2310, 1352-2310 KW - Environment Abstracts; Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Air pollution KW - Aerosols KW - Particulate mater KW - MERRAero KW - MODIS KW - AERONET KW - Remote Sensing KW - Speciation KW - Atmospheric pollution models KW - Optical properties KW - Remote sensing KW - Summer KW - Particulates KW - Data reanalysis KW - Data assimilation KW - Winter KW - Optical analysis KW - Particulate matter in atmosphere KW - Radiation KW - Chemical speciation KW - Atmospheric chemistry models KW - Networks KW - Particulate Matter KW - Emissions KW - MODIS (Moderate Resolution Imaging Spectrometer) KW - Optical Properties KW - Modelling KW - Particle size KW - Atmospheric pollution KW - Nitrates KW - Suspended particulate matter KW - Satellites KW - Environmental protection KW - Model Studies KW - Wavelengths KW - Vertical profiles KW - EPA KW - USA KW - Satellite data KW - Particulate matter emissions KW - Nature conservation KW - Optical depth of aerosols KW - Rural areas KW - Q2 09102:Institutes and organizations KW - M2 551.593:Optical (551.593) KW - SW 0810:General KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1762360344?accountid=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+Environment&rft.atitle=Evaluation+of+the+surface+PM2.5+in+Version+1+of+the+NASA+MERRA+Aerosol+Reanalysis+over+the+United+States&rft.au=Buchard%2C+V%3Bda+Silva%2C+AM%3BRandles%2C+CA%3BColarco%2C+P%3BFerrare%2C+R%3BHair%2C+J%3BHostetler%2C+C%3BTackett%2C+J%3BWinker%2C+D&rft.aulast=Buchard&rft.aufirst=V&rft.date=2016-01-01&rft.volume=125&rft.issue=&rft.spage=100&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2Fj.atmosenv.2015.11.004 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-02-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Aerosols; Radiation; Chemical speciation; Optical properties; Nature conservation; Suspended particulate matter; Environmental protection; Vertical profiles; Modelling; Particulate matter in atmosphere; Satellite data; Atmospheric pollution models; Atmospheric pollution; Particulate matter emissions; Atmospheric chemistry models; Optical depth of aerosols; MODIS (Moderate Resolution Imaging Spectrometer); Data assimilation; Data reanalysis; Particle size; Nitrates; Remote sensing; Summer; Particulates; Satellites; Winter; Optical analysis; EPA; Emissions; Rural areas; Remote Sensing; Speciation; Particulate Matter; Networks; Optical Properties; Wavelengths; Model Studies; USA DO - http://dx.doi.org/10.1016/j.atmosenv.2015.11.004 ER - TY - JOUR T1 - Exploring the Role of Killer Cell Immunoglobulin-Like Receptors and Their HLA Class I Ligands in Autoimmune Hepatitis AN - 1755065655 AB - Background Natural killer cells are involved in the complex mechanisms underlying autoimmune diseases but few studies have investigated their role in autoimmune hepatitis. Killer immunoglobulin-like receptors are key regulators of natural killer cell-mediated immune responses. Methods and Findings KIR gene frequencies, KIR haplotypes, KIR ligands and combinations of KIRs and their HLA Class I ligands were investigated in 114 patients diagnosed with type 1 autoimmune hepatitis and compared with a group of 221 healthy controls. HLA Class I and Class II antigen frequencies were compared to those of 551 healthy unrelated families representative of the Sardinian population. In our cohort, type 1 autoimmune hepatitis was strongly associated with the HLA-B18, Cw5, DR3 haplotype. The KIR2DS1 activating KIR gene and the high affinity HLA-C2 ligands were significantly higher in patients compared to controls. Patients also had a reduced frequency of HLA-Bw4 ligands for KIR3DL1 and HLA-C1 ligands for KIR2DL3. Age at onset was significantly associated with the KIR2DS1 activating gene but not with HLA-C1 or HLA-C2 ligand groups. Conclusions The activating KIR gene KIR2DS1 resulted to have an important predictive potential for early onset of type 1 autoimmune hepatitis. Additionally, the low frequency of the KIR-ligand combinations KIR3DL1/HLA-Bw4 and KIR2DL3/HLA-C1 coupled to the high frequency of the HLA-C2 high affinity ligands for KIR2DS1 could contribute to unwanted NK cell autoreactivity in AIH-1. JF - PLoS One AU - Littera, Roberto AU - Chessa, Luchino AU - Onali, Simona AU - Figorilli, Francesco AU - Lai, Sara AU - Secci, Luca AU - Nasa, Giorgio La AU - Caocci, Giovanni AU - Arras, Marcella AU - Melis, Maurizio AU - Cappellini, Sara AU - Balestrieri, Cinzia AU - Serra, Giancarlo AU - Conti, Maria AU - Zolfino, Teresa AU - Casale, Michele AU - Casu, Stefania AU - Pasetto, Maria Cristina AU - Barca, Lucia AU - Salustro, Claudia AU - Matta, Laura AU - Scioscia, Rosetta AU - Zamboni, Fausto AU - Faa, Gavino AU - Orrù, Sandro Y1 - 2016/01// PY - 2016 DA - Jan 2016 CY - San Francisco PB - Public Library of Science VL - 11 IS - 1 KW - Sciences: Comprehensive Works KW - Immunoglobulins KW - Liver KW - Studies KW - Experiments KW - Pathogenesis KW - Antigens KW - Haplotypes KW - Medical research KW - Lymphocytes KW - Ligands KW - Cytokines KW - Metabolic disorders KW - Liver diseases UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1755065655?accountid=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=PLoS+One&rft.atitle=Exploring+the+Role+of+Killer+Cell+Immunoglobulin-Like+Receptors+and+Their+HLA+Class+I+Ligands+in+Autoimmune+Hepatitis%3A+e0146086&rft.au=Littera%2C+Roberto%3BChessa%2C+Luchino%3BOnali%2C+Simona%3BFigorilli%2C+Francesco%3BLai%2C+Sara%3BSecci%2C+Luca%3BNasa%2C+Giorgio+La%3BCaocci%2C+Giovanni%3BArras%2C+Marcella%3BMelis%2C+Maurizio%3BCappellini%2C+Sara%3BBalestrieri%2C+Cinzia%3BSerra%2C+Giancarlo%3BConti%2C+Maria%3BZolfino%2C+Teresa%3BCasale%2C+Michele%3BCasu%2C+Stefania%3BPasetto%2C+Maria+Cristina%3BBarca%2C+Lucia%3BSalustro%2C+Claudia%3BMatta%2C+Laura%3BScioscia%2C+Rosetta%3BZamboni%2C+Fausto%3BFaa%2C+Gavino%3BOrr%C3%B9%2C+Sandro&rft.aulast=Littera&rft.aufirst=Roberto&rft.date=2016-01-01&rft.volume=11&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=PLoS+One&rft.issn=&rft_id=info:doi/10.1371%2Fjournal.pone.0146086 LA - English DB - ProQuest Central; ProQuest Environmental Science Collection N1 - Copyright - © 2016 Littera et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited: Littera R, Chessa L, Onali S, Figorilli F, Lai S, Secci L, et al. (2016) Exploring the Role of Killer Cell Immunoglobulin-Like Receptors and Their HLA Class I Ligands in Autoimmune Hepatitis. PLoS ONE 11(1): e0146086. doi:10.1371/journal.pone.0146086 N1 - Last updated - 2016-01-09 DO - http://dx.doi.org/10.1371/journal.pone.0146086 ER - TY - JOUR T1 - The GEOTRACES Intermediate Data Product 2014 AN - 1832624947; 771806-2 AB - The GEOTRACES Intermediate Data Product 2014 (IDP2014) is the first publicly available data product of the international GEOTRACES programme, and contains data measured and quality controlled before the end of 2013. It consists of two parts: (1) a compilation of digital data for more than 200 trace elements and isotopes (TEIs) as well as classical hydrographic parameters, and (2) the eGEOTRACES Electronic Atlas providing a strongly inter-linked on-line atlas including more than 300 section plots and 90 animated 3D scenes. The IDP2014 covers the Atlantic, Arctic, and Indian oceans, exhibiting highest data density in the Atlantic. The TEI data in the IDP2014 are quality controlled by careful assessment of intercalibration results and multi-laboratory data comparisons at cross-over stations. The digital data are provided in several formats, including ASCII spreadsheet, Excel spreadsheet, netCDF, and Ocean Data View collection. In addition to the actual data values the IDP2014 also contains data quality flags and 1-sigma data error values where available. Quality flags and error values are useful for data filtering. Metadata about data originators, analytical methods and original publications related to the data are linked to the data in an easily accessible way. The eGEOTRACES Electronic Atlas is the visual representation of the IDP2014 data providing section plots and a new kind of animated 3D scenes. The basin-wide 3D scenes allow for viewing of data from many cruises at the same time, thereby providing quick overviews of large-scale tracer distributions. In addition, the 3D scenes provide geographical and bathymetric context that is crucial for the interpretation and assessment of observed tracer plumes, as well as for making inferences about controlling processes. Abstract Copyright (2015) Elsevier, B.V. JF - Marine Chemistry AU - Mawji, Edward AU - Schlitzer, Reiner AU - Dodas, Elena Masferrer AU - Abadie, Cyril AU - Abouchami, Wafa AU - Anderson, Robert F AU - Baars, Oliver AU - Bakker, Karel AU - Baskaran, Mark AU - Bates, Nicholas R AU - Bluhm, Katrin AU - Bowie, Andrew AU - Bown, Johann AU - Boye, Marie AU - Boyle, Edward A AU - Branellec, Pierre AU - Bruland, Kenneth W AU - Brzezinski, Mark A AU - Bucciarelli, Eva AU - Buesseler, Ken AU - Butler, Edward AU - Cai, Pinghe AU - Cardinal, Damien AU - Casciotti, Karen AU - Chaves, Joaquin AU - Cheng, Hai AU - Chever, Fanny AU - Church, Thomas M AU - Colman, Albert S AU - Conway, Tim M AU - Croot, Peter L AU - Cutter, Gregory A AU - de Baar, Hein J W AU - de Souza, Gregory F AU - Dehairs, Frank AU - Deng, Feifei AU - Dieu, Huong Thi AU - Dulaquais, Gabriel AU - Echegoyen-Sanz, Yolanda AU - Lawrence Edwards, R AU - Fahrbach, Eberhard AU - Fitzsimmons, Jessica AU - Fleisher, Martin AU - Frank, Martin AU - Friedrich, Jana AU - Fripiat, Francois AU - Galer, Stephen J G AU - Gamo, Toshitaka AU - Solsona, Ester Garcia AU - Gerringa, Loes J A AU - Godoy, Jose Marcus AU - Gonzalez, Santiago AU - Grossteffan, Emilie AU - Hatta, Mariko AU - Hayes, Christopher T AU - Heller, Maija Iris AU - Henderson, Gideon AU - Huang, Kuo-Fang AU - Jeandel, Catherine AU - Jenkins, William J AU - John, Seth AU - Kenna, Timothy C AU - Klunder, Maarten AU - Kretschmer, Sven AU - Kumamoto, Yuichiro AU - Laan, Patrick AU - Labatut, Marie AU - Lacan, Francois AU - Lam, Phoebe J AU - Lannuzel, Delphine AU - le Moigne, Frederique AU - Lechtenfeld, Oliver J AU - Lohan, Maeve C AU - Lu, Yanbin AU - Masque, Pere AU - McClain, Charles R AU - Measures, Christopher AU - Middag, Rob AU - Moffett, James AU - Navidad, Alicia AU - Nishioka, Jun AU - Noble, Abigail AU - Obata, Hajime AU - Ohnemus, Daniel C AU - Owens, Stephanie AU - Planchon, Frederic AU - Pradoux, Catherine AU - Puigcorbe, Viena AU - Quay, Paul AU - Radic, Amandine AU - Rehkaemper, Mark AU - Remenyi, Tomas AU - Rijkenberg, Micha J A AU - Rintoul, Stephen AU - Robinson, Laura F AU - Roeske, Tobias AU - Rosenberg, Mark AU - van der Loeff, Michiel Rutgers AU - Ryabenko, Evgenia AU - Saito, Mak A AU - Roshan, Saeed AU - Salt, Lesley AU - Sarthou, Geraldine AU - Schauer, Ursula AU - Scott, Peter AU - Sedwick, Peter N AU - Sha, Lijuan AU - Shiller, Alan M AU - Sigman, Daniel M AU - Smethie, William AU - Smith, Geoffrey J AU - Sohrin, Yoshiki AU - Speich, Sabrina AU - Stichel, Torben AU - Stutsman, Johnny AU - Swift, James H AU - Tagliabue, Alessandro AU - Thomas, Alexander AU - Tsunogai, Urumu AU - Twining, Benjamin S AU - van Aken, Hendrik M AU - van Heuven, Steven AU - van Ooijen, Jan AU - van Weerlee, Evaline AU - Venchiarutti, Celia AU - Voelker, Antje H L AU - Wake, Bronwyn AU - Warner, Mark J AU - Woodward, E Malcolm S AU - Wu, Jingfeng AU - Wyatt, Neil AU - Yoshikawa, Hisayuki AU - Zheng, Xin-Yuan AU - Xue, Zichen AU - Zieringer, Moritz AU - Zimmer, Louise A Y1 - 2015/12/20/ PY - 2015 DA - 2015 Dec 20 SP - 1 EP - 8 PB - Elsevier, Amsterdam VL - 177 IS - PART 1 SN - 0304-4203, 0304-4203 KW - programs KW - digital data KW - sea water KW - isotopes KW - international cooperation KW - hydrochemistry KW - Indian Ocean KW - Arctic Ocean KW - trace metals KW - trace elements KW - GEOTRACES KW - geochemistry KW - Atlantic Ocean KW - 02B:Hydrochemistry KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832624947?accountid=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=Marine+Chemistry&rft.atitle=The+GEOTRACES+Intermediate+Data+Product+2014&rft.au=Mawji%2C+Edward%3BSchlitzer%2C+Reiner%3BDodas%2C+Elena+Masferrer%3BAbadie%2C+Cyril%3BAbouchami%2C+Wafa%3BAnderson%2C+Robert+F%3BBaars%2C+Oliver%3BBakker%2C+Karel%3BBaskaran%2C+Mark%3BBates%2C+Nicholas+R%3BBluhm%2C+Katrin%3BBowie%2C+Andrew%3BBown%2C+Johann%3BBoye%2C+Marie%3BBoyle%2C+Edward+A%3BBranellec%2C+Pierre%3BBruland%2C+Kenneth+W%3BBrzezinski%2C+Mark+A%3BBucciarelli%2C+Eva%3BBuesseler%2C+Ken%3BButler%2C+Edward%3BCai%2C+Pinghe%3BCardinal%2C+Damien%3BCasciotti%2C+Karen%3BChaves%2C+Joaquin%3BCheng%2C+Hai%3BChever%2C+Fanny%3BChurch%2C+Thomas+M%3BColman%2C+Albert+S%3BConway%2C+Tim+M%3BCroot%2C+Peter+L%3BCutter%2C+Gregory+A%3Bde+Baar%2C+Hein+J+W%3Bde+Souza%2C+Gregory+F%3BDehairs%2C+Frank%3BDeng%2C+Feifei%3BDieu%2C+Huong+Thi%3BDulaquais%2C+Gabriel%3BEchegoyen-Sanz%2C+Yolanda%3BLawrence+Edwards%2C+R%3BFahrbach%2C+Eberhard%3BFitzsimmons%2C+Jessica%3BFleisher%2C+Martin%3BFrank%2C+Martin%3BFriedrich%2C+Jana%3BFripiat%2C+Francois%3BGaler%2C+Stephen+J+G%3BGamo%2C+Toshitaka%3BSolsona%2C+Ester+Garcia%3BGerringa%2C+Loes+J+A%3BGodoy%2C+Jose+Marcus%3BGonzalez%2C+Santiago%3BGrossteffan%2C+Emilie%3BHatta%2C+Mariko%3BHayes%2C+Christopher+T%3BHeller%2C+Maija+Iris%3BHenderson%2C+Gideon%3BHuang%2C+Kuo-Fang%3BJeandel%2C+Catherine%3BJenkins%2C+William+J%3BJohn%2C+Seth%3BKenna%2C+Timothy+C%3BKlunder%2C+Maarten%3BKretschmer%2C+Sven%3BKumamoto%2C+Yuichiro%3BLaan%2C+Patrick%3BLabatut%2C+Marie%3BLacan%2C+Francois%3BLam%2C+Phoebe+J%3BLannuzel%2C+Delphine%3Ble+Moigne%2C+Frederique%3BLechtenfeld%2C+Oliver+J%3BLohan%2C+Maeve+C%3BLu%2C+Yanbin%3BMasque%2C+Pere%3BMcClain%2C+Charles+R%3BMeasures%2C+Christopher%3BMiddag%2C+Rob%3BMoffett%2C+James%3BNavidad%2C+Alicia%3BNishioka%2C+Jun%3BNoble%2C+Abigail%3BObata%2C+Hajime%3BOhnemus%2C+Daniel+C%3BOwens%2C+Stephanie%3BPlanchon%2C+Frederic%3BPradoux%2C+Catherine%3BPuigcorbe%2C+Viena%3BQuay%2C+Paul%3BRadic%2C+Amandine%3BRehkaemper%2C+Mark%3BRemenyi%2C+Tomas%3BRijkenberg%2C+Micha+J+A%3BRintoul%2C+Stephen%3BRobinson%2C+Laura+F%3BRoeske%2C+Tobias%3BRosenberg%2C+Mark%3Bvan+der+Loeff%2C+Michiel+Rutgers%3BRyabenko%2C+Evgenia%3BSaito%2C+Mak+A%3BRoshan%2C+Saeed%3BSalt%2C+Lesley%3BSarthou%2C+Geraldine%3BSchauer%2C+Ursula%3BScott%2C+Peter%3BSedwick%2C+Peter+N%3BSha%2C+Lijuan%3BShiller%2C+Alan+M%3BSigman%2C+Daniel+M%3BSmethie%2C+William%3BSmith%2C+Geoffrey+J%3BSohrin%2C+Yoshiki%3BSpeich%2C+Sabrina%3BStichel%2C+Torben%3BStutsman%2C+Johnny%3BSwift%2C+James+H%3BTagliabue%2C+Alessandro%3BThomas%2C+Alexander%3BTsunogai%2C+Urumu%3BTwining%2C+Benjamin+S%3Bvan+Aken%2C+Hendrik+M%3Bvan+Heuven%2C+Steven%3Bvan+Ooijen%2C+Jan%3Bvan+Weerlee%2C+Evaline%3BVenchiarutti%2C+Celia%3BVoelker%2C+Antje+H+L%3BWake%2C+Bronwyn%3BWarner%2C+Mark+J%3BWoodward%2C+E+Malcolm+S%3BWu%2C+Jingfeng%3BWyatt%2C+Neil%3BYoshikawa%2C+Hisayuki%3BZheng%2C+Xin-Yuan%3BXue%2C+Zichen%3BZieringer%2C+Moritz%3BZimmer%2C+Louise+A&rft.aulast=Mawji&rft.aufirst=Edward&rft.date=2015-12-20&rft.volume=177&rft.issue=PART+1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Marine+Chemistry&rft.issn=03044203&rft_id=info:doi/10.1016%2Fj.marchem.2015.04.005 L2 - http://www.sciencedirect.com/science/journal/03044203 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 CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Number of references - 6 N1 - Document feature - illus. incl. 6 tables, sketch map N1 - Last updated - 2017-01-24 N1 - CODEN - MRCHBD N1 - SubjectsTermNotLitGenreText - Arctic Ocean; Atlantic Ocean; digital data; geochemistry; GEOTRACES; hydrochemistry; Indian Ocean; international cooperation; isotopes; programs; sea water; trace elements; trace metals DO - http://dx.doi.org/10.1016/j.marchem.2015.04.005 ER - TY - JOUR T1 - The effect of sediment mixing on mercury dynamics in two intertidal mudflats at Great Bay Estuary, New Hampshire, USA AN - 1832618345; 772545-3 AB - Estuarine sediments store particulate contaminants including mercury (Hg). We studied Hg sediment dynamics in two intertidal mudflats at Great Bay estuary, NH, over multiple years. Sediments at both mudflats were physically mixed down to nearly equal 10 cm, as determined by (super 7) Be measurements, albeit via different mechanisms. Portsmouth mudflat (PT) sediments were subject to bioturbation by infaunal organisms and Squamscott mudflat (SQ) sediments were subject to erosion and redeposition. The presence of higher concentrations of fresh Fe(III) hydroxide at PT suggested bioirrigation by the polychaetes (Nereis virens). At depths where infaunal bioirrigation was observed, pore-water inorganic Hg (Hg (sub i) ) and methylmercury (MeHg) were lower potentially due to their interaction with Fe(III) hydroxide. Methylmercury concentrations increased immediately below this zone in some samples, suggesting that the observed increase in material flux in bioirrigated sediments may initiate from lower depths. Pore water in sediment at PT also had higher fractions of more protein-like and labile DOC than those at SQ that can lead to increased MeHg production in PT, especially at depths where Hg (sub i) is not removed from solution by Fe(III) hydroxide. Where sediment erosion and redeposition were observed at SQ, Hg species distribution was extended deeper into the sediment column. Moreover, methyl coenzyme M reductase (MCR) and mercury reductase (mer-A) genes were higher at SQ than PT suggesting differences in conditions for Hg cycling. Results showed that the near-surface region of high MeHg concentrations commonly observed in unmixed sediments does not exist in physically mixed sediments that are common in many estuarine environments. Abstract Copyright (2015) Elsevier, B.V. JF - Marine Chemistry AU - Brown, Lauren E AU - Chen, Celia Y AU - Voytek, Mary A AU - Amirbahman, Aria Y1 - 2015/12/20/ PY - 2015 DA - 2015 Dec 20 SP - 731 EP - 741 PB - Elsevier, Amsterdam VL - 177 IS - PART 5 SN - 0304-4203, 0304-4203 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832618345?accountid=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=Marine+Chemistry&rft.atitle=The+effect+of+sediment+mixing+on+mercury+dynamics+in+two+intertidal+mudflats+at+Great+Bay+Estuary%2C+New+Hampshire%2C+USA&rft.au=Brown%2C+Lauren+E%3BChen%2C+Celia+Y%3BVoytek%2C+Mary+A%3BAmirbahman%2C+Aria&rft.aulast=Brown&rft.aufirst=Lauren&rft.date=2015-12-20&rft.volume=177&rft.issue=PART+5&rft.spage=731&rft.isbn=&rft.btitle=&rft.title=Marine+Chemistry&rft.issn=03044203&rft_id=info:doi/10.1016%2Fj.marchem.2015.10.011 L2 - http://www.sciencedirect.com/science/journal/03044203 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 CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Last updated - 2017-01-24 N1 - CODEN - MRCHBD DO - http://dx.doi.org/10.1016/j.marchem.2015.10.011 ER - TY - JOUR T1 - Paradox of peroxy defects and positive holes in rocks; Part I, Effect of temperature AN - 1840620684; 2016-098153 JF - Journal of Asian Earth Sciences AU - Freund, Friedemann T AU - Freund, Minoru M Y1 - 2015/12/15/ PY - 2015 DA - 2015 Dec 15 SP - 373 EP - 383 PB - Elsevier, Oxford VL - 114 IS - PART 2 SN - 1367-9120, 1367-9120 KW - precursors KW - electrical conductivity KW - thermal activation KW - igneous rocks KW - acceleration KW - high-grade metamorphism KW - temperature KW - plutonic rocks KW - chemical reactions KW - phase equilibria KW - mass balance KW - metamorphic rocks KW - magnesium oxides KW - oxides KW - molecular dynamics KW - geothermal gradient KW - thermodynamic properties KW - Eh KW - experimental studies KW - electrical properties KW - diffusion KW - pressure KW - oxidation KW - stress KW - magnitude KW - positive holes KW - metamorphism KW - depth KW - molecular structure KW - hydroxyl ion KW - peroxy defects KW - hydrogen KW - mathematical methods KW - crystallization KW - gabbros KW - earthquakes KW - electrical currents KW - 19:Seismology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840620684?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Paradox+of+peroxy+defects+and+positive+holes+in+rocks%3B+Part+I%2C+Effect+of+temperature&rft.au=Freund%2C+Friedemann+T%3BFreund%2C+Minoru+M&rft.aulast=Freund&rft.aufirst=Friedemann&rft.date=2015-12-15&rft.volume=114&rft.issue=PART+2&rft.spage=373&rft.isbn=&rft.btitle=&rft.title=Journal+of+Asian+Earth+Sciences&rft.issn=13679120&rft_id=info:doi/10.1016%2Fj.jseaes.2015.04.047 L2 - http://www.sciencedirect.com/science/journal/13679120 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 44 N1 - Document feature - illus. N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - acceleration; chemical reactions; crystallization; depth; diffusion; earthquakes; Eh; electrical conductivity; electrical currents; electrical properties; experimental studies; gabbros; geothermal gradient; high-grade metamorphism; hydrogen; hydroxyl ion; igneous rocks; magnesium oxides; magnitude; mass balance; mathematical methods; metamorphic rocks; metamorphism; molecular dynamics; molecular structure; oxidation; oxides; peroxy defects; phase equilibria; plutonic rocks; positive holes; precursors; pressure; stress; temperature; thermal activation; thermodynamic properties DO - http://dx.doi.org/10.1016/j.jseaes.2015.04.047 ER - TY - JOUR T1 - Paradox of peroxy defects and positive holes in rocks; Part II, Outflow of electric currents from stressed rocks AN - 1840620446; 2016-098150 AB - Understanding the electrical properties of rocks is of fundamental interest. We report on currents generated when stresses are applied. Loading the center of gabbro tiles, 30 X 30 X 0.9 cm (super 3) , across a 5 cm diameter piston, leads to positive currents flowing from the center to the unstressed edges. Changing the constant rate of loading over 5 orders of magnitude from 0.2 kPa/s to 20 MPa/s produces positive currents, which start to flow already at low stress levels, <5 MPa. The currents increase as long as stresses increase. At constant load they flow for hours, days, even weeks and months, slowly decreasing with time. When stresses are removed, they rapidly disappear but can be made to reappear upon reloading. These currents are consistent with the stress-activation of peroxy defects, such as O (sub 3) Si-OO-SiO (sub 3) , in the matrix of rock-forming minerals. The peroxy break-up leads to positive holes h (super ) , i.e. electronic states associated with O (super -) in a matrix of O (super 2-) , plus electrons, e'. Propagating along the upper edge of the valence band, the h (super ) are able to flow from stressed to unstressed rock, traveling fast and far by way of a phonon-assisted electron hopping mechanism using energy levels at the upper edge of the valence band. Impacting the tile center leads to h (super ) pulses, 4-6 ms long, flowing outward at approximately 100 m/s at a current equivalent to 1-2 X 10 (super 9) A/km (super 3) . Electrons, trapped in the broken peroxy bonds, are also mobile, but only within the stressed volume. Abstract Copyright (2015) Elsevier, B.V. JF - Journal of Asian Earth Sciences AU - Scoville, John AU - Sornette, Jaufray AU - Freund, Friedemann T Y1 - 2015/12/15/ PY - 2015 DA - 2015 Dec 15 SP - 338 EP - 351 PB - Elsevier, Oxford VL - 114 IS - PART 2 SN - 1367-9120, 1367-9120 KW - precursors KW - experimental studies KW - electrical properties KW - electrical conductivity KW - pressure KW - igneous rocks KW - stress KW - magnitude KW - acceleration KW - positive holes KW - depth KW - temperature KW - peroxy defects KW - plutonic rocks KW - geothermal gradient KW - gabbros KW - earthquakes KW - electrical currents KW - 19:Seismology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840620446?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Paradox+of+peroxy+defects+and+positive+holes+in+rocks%3B+Part+II%2C+Outflow+of+electric+currents+from+stressed+rocks&rft.au=Scoville%2C+John%3BSornette%2C+Jaufray%3BFreund%2C+Friedemann+T&rft.aulast=Scoville&rft.aufirst=John&rft.date=2015-12-15&rft.volume=114&rft.issue=PART+2&rft.spage=338&rft.isbn=&rft.btitle=&rft.title=Journal+of+Asian+Earth+Sciences&rft.issn=13679120&rft_id=info:doi/10.1016%2Fj.jseaes.2015.04.016 L2 - http://www.sciencedirect.com/science/journal/13679120 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 30 N1 - Document feature - illus. N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - acceleration; depth; earthquakes; electrical conductivity; electrical currents; electrical properties; experimental studies; gabbros; geothermal gradient; igneous rocks; magnitude; peroxy defects; plutonic rocks; positive holes; precursors; pressure; stress; temperature DO - http://dx.doi.org/10.1016/j.jseaes.2015.04.016 ER - TY - JOUR T1 - Impact-induced brittle deformation, porosity loss, and aqueous alteration in the Murchison CM chondrite AN - 1780803276; 2016-032432 AB - X-ray computed tomographic scanning of a 44 g Murchison stone (USNM 5487) reveals a preferred alignment of deformed, partially altered chondrules, which define a prominent foliation and weak lineation in 3D. The presence of a lineation and evidence for a component of rotational, noncoaxial shear suggest that the deformation was caused by impact. Olivine optical extinction indicates that the sample can be classified as shock stage S1, and electron backscatter diffraction (EBSD) and electron microscopy reveal that plastic deformation within the chondrules was minimal and that brittle deformation in the form of fracturing, cataclasis, and grain boundary sliding was the dominant microstructural strain-accommodating mechanism. Textural evidence such as serpentine veins parallel to the foliation fabric and crosscutting alteration veins strongly suggest that some aqueous alteration post-dated or was contemporaneous with the deformation and that multiple episodes of fracturing and mineralization occurred. Finally, using the deformed shape of the chondrules we estimate that the strain experienced by Murchison was 17-43%. This combined with the current measured porosity of Murchison suggests that the original bulk porosity of Murchison prior to its deformation was 32.2-53.4% and likely at the upper end of this range due to chondrule compressibility, providing a unique estimate of pre-deformation porosity for a carbonaceous chondrite. Our findings suggest that significant porosity loss, deformation, and compaction from impact can occur on chondrite parent bodies whose samples may record only a low level of shock, and that significant chondrule deformation resulting in a chondrite foliation fabric can occur primarily through brittle processes and does not require plastic deformation of grains. Abstract Copyright (2015) Elsevier, B.V. JF - Geochimica et Cosmochimica Acta AU - Hanna, Romy D AU - Ketcham, Richard A AU - Zolensky, Mike AU - Behr, Whitney M Y1 - 2015/12/15/ PY - 2015 DA - 2015 Dec 15 SP - 256 EP - 282 PB - Elsevier, New York, NY VL - 171 SN - 0016-7037, 0016-7037 KW - stony meteorites KW - plastic deformation KW - Murchison Meteorite KW - meteorites KW - spectra KW - fabric KW - chondrites KW - lineation KW - cataclasis KW - textures KW - electron microscopy data KW - brittle deformation KW - carbonaceous chondrites KW - deformation KW - X-ray spectra KW - porosity KW - EDS spectra KW - diffraction KW - aqueous alteration KW - chondrules KW - mathematical methods KW - foliation KW - CM chondrites KW - computed tomography data KW - SEM data KW - backscattering KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1780803276?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Impact-induced+brittle+deformation%2C+porosity+loss%2C+and+aqueous+alteration+in+the+Murchison+CM+chondrite&rft.au=Hanna%2C+Romy+D%3BKetcham%2C+Richard+A%3BZolensky%2C+Mike%3BBehr%2C+Whitney+M&rft.aulast=Hanna&rft.aufirst=Romy&rft.date=2015-12-15&rft.volume=171&rft.issue=&rft.spage=256&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2015.09.005 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 80 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-04-14 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aqueous alteration; backscattering; brittle deformation; carbonaceous chondrites; cataclasis; chondrites; chondrules; CM chondrites; computed tomography data; deformation; diffraction; EDS spectra; electron microscopy data; fabric; foliation; lineation; mathematical methods; meteorites; Murchison Meteorite; plastic deformation; porosity; SEM data; spectra; stony meteorites; textures; X-ray spectra DO - http://dx.doi.org/10.1016/j.gca.2015.09.005 ER - TY - JOUR T1 - A SMACK model of colliding planetesimals in the beta Pictoris debris disk AN - 1832633668; 772907-62 AB - We present a new model of the � Pictoris disk-and-planet system that simulates both the planetesimal collisions and the dynamics of the resulting dust grains, allowing us to model features and asymmetries in both thermal and scattered light images of the disk. Our two-part model first simulates the collisional and dynamical evolution of the planetesimals with the Superparticle-Method Algorithm for Collisions in Kuiper belts and then simulates the dynamical evolution of the resulting dust grains with a standard Bulirsch�Stoer N-body integrator. Given the observed inclination and eccentricity of the � Pictoris b planet, the model neatly ties together several features of the disk: the central hole in the submillimeter images, the two-disk �x�-pattern seen in scattered light, and possibly even the clumpy gas seen by ALMA. We also find that most of the dust in the � Pictoris system is likely produced outside the ring at 60�100 AU. Instead of a birth ring, this disk has a �stirring ring� at 60�100 AU where the high-velocity collisions produced by the secular wave launched by the planet are concentrated. The two-disk x-pattern arises because collisions occur more frequently at the peaks and troughs of the secular wave. The perturbations of the disk in this region create an azimuthally and vertically asymmetric spatial distribution of collisions, which could yield an azimuthal clump of gas without invoking resonances or an additional planet. Copyright (Copyright) 2015. The American Astronomical Society. All rights reserved. JF - The Astrophysical Journal AU - Nesvold, Erika R AU - Kuchner, Marc J Y1 - 2015/12/10/ PY - 2015 DA - 2015 Dec 10 EP - Paper no. 61 PB - IOP Publishing for American Astronomical Society, Bristol VL - 815 IS - 1 SN - 0004-637X, 0004-637X KW - debris disk KW - three-dimensional models KW - orbits KW - planetesimals KW - impacts KW - simulation KW - physical models KW - eccentricity KW - models KW - spatial distribution KW - size distribution KW - resonance KW - cosmic dust KW - N-body simulation KW - dynamics KW - stars KW - orbital inclination KW - velocity KW - Beta Pictoris KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832633668?accountid=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=The+Astrophysical+Journal&rft.atitle=A+SMACK+model+of+colliding+planetesimals+in+the+beta+Pictoris+debris+disk&rft.au=Nesvold%2C+Erika+R%3BKuchner%2C+Marc+J&rft.aulast=Nesvold&rft.aufirst=Erika&rft.date=2015-12-10&rft.volume=815&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+Astrophysical+Journal&rft.issn=0004637X&rft_id=info:doi/10.1088%2F0004-637X%2F815%2F1%2F61 L2 - http://iopscience.iop.org/0004-637X 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 supplied by IOP Publishing Ltd., London, United Kingdom N1 - Number of references - 71 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - Beta Pictoris; cosmic dust; debris disk; dynamics; eccentricity; impacts; models; N-body simulation; orbital inclination; orbits; physical models; planetesimals; resonance; simulation; size distribution; spatial distribution; stars; three-dimensional models; velocity DO - http://dx.doi.org/10.1088/0004-637X/815/1/61 ER - TY - JOUR T1 - Ammoniated phyllosilicates with a likely outer solar system origin on (1) Ceres AN - 1761075298; 2016-009162 JF - Nature (London) AU - De Sanctis, Maria Cristina AU - Ammannito, E AU - Raponi, A AU - Marchi, S AU - McCord, T B AU - McSween, H Y AU - Capaccioni, F AU - Capria, M T AU - Carrozzo, F G AU - Ciarniello, M AU - Longobardo, A AU - Tosi, F AU - Fonte, S AU - Formisano, M AU - Frigeri, A AU - Giardino, M AU - Magni, G AU - Palomba, E AU - Turrini, D AU - Zambon, F AU - Combe, J P AU - Feldman, W AU - Jaumann, R AU - McFadden, L A AU - Pieters, C M AU - Prettyman, T AU - Toplis, M AU - Raymond, C A AU - Russell, C T Y1 - 2015/12/10/ PY - 2015 DA - 2015 Dec 10 SP - 241 EP - 244 PB - Macmillan Journals, London VL - 528 IS - 7581 SN - 0028-0836, 0028-0836 KW - silicates KW - albedo KW - solar system KW - stony meteorites KW - Ceres KW - asteroids KW - carbonaceous chondrites KW - dwarf planets KW - infrared spectra KW - clay minerals KW - planets KW - meteorites KW - brucite KW - oxides KW - interplanetary comparison KW - sheet silicates KW - spectra KW - outer planets KW - orbital observations KW - chondrites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1761075298?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Ammoniated+phyllosilicates+with+a+likely+outer+solar+system+origin+on+%281%29+Ceres&rft.au=De+Sanctis%2C+Maria+Cristina%3BAmmannito%2C+E%3BRaponi%2C+A%3BMarchi%2C+S%3BMcCord%2C+T+B%3BMcSween%2C+H+Y%3BCapaccioni%2C+F%3BCapria%2C+M+T%3BCarrozzo%2C+F+G%3BCiarniello%2C+M%3BLongobardo%2C+A%3BTosi%2C+F%3BFonte%2C+S%3BFormisano%2C+M%3BFrigeri%2C+A%3BGiardino%2C+M%3BMagni%2C+G%3BPalomba%2C+E%3BTurrini%2C+D%3BZambon%2C+F%3BCombe%2C+J+P%3BFeldman%2C+W%3BJaumann%2C+R%3BMcFadden%2C+L+A%3BPieters%2C+C+M%3BPrettyman%2C+T%3BToplis%2C+M%3BRaymond%2C+C+A%3BRussell%2C+C+T&rft.aulast=De+Sanctis&rft.aufirst=Maria&rft.date=2015-12-10&rft.volume=528&rft.issue=7581&rft.spage=241&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2Fnature16172 L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 30 N1 - Document feature - illus. N1 - Last updated - 2016-01-29 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - albedo; asteroids; brucite; carbonaceous chondrites; Ceres; chondrites; clay minerals; dwarf planets; infrared spectra; interplanetary comparison; meteorites; orbital observations; outer planets; oxides; planets; sheet silicates; silicates; solar system; spectra; stony meteorites DO - http://dx.doi.org/10.1038/nature16172 ER - TY - NEWS T1 - NASA's Work to Understand Climate: A Global Perspective AN - 1747731545 JF - UPI Space Daily AU - Charlie Bolden, NASA Administrator Y1 - 2015/12/10/ PY - 2015 DA - 2015 Dec 10 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1747731545?accountid=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%27s+Work+to+Understand+Climate%3A+A+Global+Perspective&rft.au=Charlie+Bolden%2C+NASA+Administrator&rft.aulast=Charlie+Bolden&rft.aufirst=NASA&rft.date=2015-12-10&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 - 2015-12-11 ER - TY - NEWS T1 - Rotational movies of Pluto and Charon AN - 1746603602 JF - UPI Space Daily AU - Constantine Tsang for https://blogs.nasa.gov/pluto/ New Horizons Blogs Y1 - 2015/12/08/ PY - 2015 DA - 2015 Dec 08 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1746603602?accountid=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=Rotational+movies+of+Pluto+and+Charon&rft.au=Constantine+Tsang+for+https%3A%2F%2Fblogs.nasa.gov%2Fpluto%2F+New+Horizons+Blogs&rft.aulast=Constantine+Tsang+for+https%3A%2F%2Fblogs.nasa.gov%2Fpluto%2F+New+Horizons+Blogs&rft.aufirst=&rft.date=2015-12-08&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 - 2015-12-08 ER - TY - NEWS T1 - Dawn spiraling in towards Ceres AN - 1746603601 JF - UPI Space Daily AU - Marc Rayman for http://dawnblog.jpl.nasa.gov Dawn Blog Y1 - 2015/12/08/ PY - 2015 DA - 2015 Dec 08 CY - Washington KW - Aeronautics And Space Flight UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1746603601?accountid=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+spiraling+in+towards+Ceres&rft.au=Marc+Rayman+for+http%3A%2F%2Fdawnblog.jpl.nasa.gov+Dawn+Blog&rft.aulast=Marc+Rayman+for+http%3A%2F%2Fdawnblog.jpl.nasa.gov+Dawn+Blog&rft.aufirst=&rft.date=2015-12-08&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 - 2015-12-08 ER - TY - JOUR T1 - Comparisons between New Horizons results and long-term monitoring of Pluto AN - 1849310910; 2016-109588 AB - The New Horizons encounter data have revealed a diverse and complicated surface and atmosphere for Pluto showing strong correlations between geologic features and the albedo and compositional units known from ground- and HST-based observations over the decades prior. This presentation will delve into detailed comparisons between the long time base and low spatial resolution data and the new high resolution snapshot of Pluto from the flyby. Special emphasis will be placed on the albedo and near-infrared spectral evolution over time. We will compare the albedo maps from the late 1980's built on mutual event data and two epochs of HST observations against the New Horizons images, after correcting for viewing geometry. Also included will be a discussion of the evolutionary trends in the hemispherically averaged spectral properties from Lowell Observatory and IRTF data against the resolved compositional and spectral maps from New Horizons. The combination of these data sets now permits an unprecedented ability to constrain time-variability on the surface from apparent changes due to viewing geometry and surface inhomogeneities. These comparisons require a reconcilliation of surface scattering properties that are enabled by the firm determination of the size of Pluto. JF - American Geophysical Union Fall Meeting AU - Buie, Marc W AU - Stern, Alan AU - Young, Leslie A AU - Weaver, Harold A, Jr AU - Olkin, Catherine AU - Ennico Smith, Kimberly AU - Moore, Jeffrey M AU - Grundy, William M AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P41E EP - 03 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849310910?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Comparisons+between+New+Horizons+results+and+long-term+monitoring+of+Pluto&rft.au=Buie%2C+Marc+W%3BStern%2C+Alan%3BYoung%2C+Leslie+A%3BWeaver%2C+Harold+A%2C+Jr%3BOlkin%2C+Catherine%3BEnnico+Smith%2C+Kimberly%3BMoore%2C+Jeffrey+M%3BGrundy%2C+William+M%3BAnonymous&rft.aulast=Buie&rft.aufirst=Marc&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Charon as seen by New Horizons in the infrared AN - 1849310472; 2016-109587 AB - Charon, the largest satellite of Pluto, is a gray-colored icy world covered mostly in H (sub 2) O ice, with spectral evidence for NH (sub 3) , as previously reported (Cook et al. 2007, Astrophys. J. 663, 1406-1419; Merlin, et al. 2010, Icarus, 210, 930; Cook, et al. 2014, AAS/Division for Planetary Sciences Meeting Abstracts, 46, #401.04). Images from the New Horizons spacecraft reveal a surface with terrains of widely different ages and a moderate degree of localized coloration. New Horizons observed Charon at high spatial resolution (better than 10 km/px) with the LEISA imaging spectrometer. LEISA is part of the Ralph instrument (Reuter, D. C., Stern, S. A., Scherrer, J., et al. 2008, Space Science Reviews, 140, 129) and affords a spectral resolving power of 240 in the wavelength range 1.25-2.5 mu m, and 560 in the range 2.1-2.25 mu m. We present results obtained from the analysis of high spatial resolution data obtained close to flyby. JF - American Geophysical Union Fall Meeting AU - Dalle Ore, Cristina AU - Cruikshank, Dale P AU - Stern, Alan AU - Young, Leslie A AU - Ennico Smith, Kimberly AU - Grundy, William M AU - Olkin, Catherine AU - Weaver, Harold A, Jr AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P41E EP - 02 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849310472?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Charon+as+seen+by+New+Horizons+in+the+infrared&rft.au=Dalle+Ore%2C+Cristina%3BCruikshank%2C+Dale+P%3BStern%2C+Alan%3BYoung%2C+Leslie+A%3BEnnico+Smith%2C+Kimberly%3BGrundy%2C+William+M%3BOlkin%2C+Catherine%3BWeaver%2C+Harold+A%2C+Jr%3BAnonymous&rft.aulast=Dalle+Ore&rft.aufirst=Cristina&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Geomorphological mapping of Sputnik Planum and surrounding terrain on Pluto AN - 1849310301; 2016-109591 AB - The New Horizons flyby of Pluto in July 2015 has provided the first few close-up images of the Kuiper belt object, which reveal it to have a highly diverse range of terrains, implying a complex geological history. The highest resolution images that have yet been returned are seven lossy 400 m/pixel frames that cover the majority of the prominent Plutonian feature informally named Sputnik Planum (all feature names are currently informal), and its surroundings. This resolution is sufficient to allow detailed geomorphological mapping of this area to commence. Lossless versions of all 15 frames that make up the mosaic will be returned in September 2015, and the map presented at AGU will incorporate the total area covered by these frames. Sputnik Planum, with an area of approximately 650,000 km (super 2) , is notable for its smooth appearance and apparent total lack of impact craters at 400 m/pixel resolution. The Planum actually displays a wide variety of textures across its expanse, which includes smooth and pitted plains to the south, polygonal terrain at its center (the polygons can reach tens of kilometers in size and are bounded by troughs that sometimes feature central ridges), and, to the north, darker polygonal terrain displaying patterns indicative of glacial flow. Within these plains there exist several well-defined outcrops of a mottled, light/dark unit that reach from several to tens of kilometers across. Separating Sputnik Planum from the dark, cratered equatorial terrain of Cthulhu Regio on its southwestern margin is a unit of chaotically arranged mountains; similar mountainous units exist on the south and western margins. The northern margin is bounded by rugged, hilly, cratered terrain into which ice of Sputnik Planum appears to be intruding in places. Terrain of similar relief exists to the east, but is much brighter than that to the north. The southernmost extent of the mosaic features a unit of rough, undulating terrain that displays very few impact craters at 400 m/pixel resolution. JF - American Geophysical Union Fall Meeting AU - White, Oliver L AU - Stern, S Alan AU - Weaver, Harold A, Jr AU - Olkin, Catherine AU - Ennico Smith, Kimberly AU - Young, Leslie A AU - Moore, Jeffrey M AU - Cheng, Andrew F AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P41E EP - 06 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849310301?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Geomorphological+mapping+of+Sputnik+Planum+and+surrounding+terrain+on+Pluto&rft.au=White%2C+Oliver+L%3BStern%2C+S+Alan%3BWeaver%2C+Harold+A%2C+Jr%3BOlkin%2C+Catherine%3BEnnico+Smith%2C+Kimberly%3BYoung%2C+Leslie+A%3BMoore%2C+Jeffrey+M%3BCheng%2C+Andrew+F%3BAnonymous&rft.aulast=White&rft.aufirst=Oliver&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - An improved grace terrestrial water storage assimilation system for estimating large-scale soil moisture and shallow groundwater AN - 1849310220; 2016-109468 AB - The Gravity Recovery And Climate Experiment (GRACE) mission is unique because it provides highly accurate column integrated estimates of terrestrial water storage (TWS) variations. Major limitations of GRACE-based TWS observations are related to their monthly temporal and coarse spatial resolution (around 330 km at the equator), and to the vertical integration of the water storage components. These challenges can be addressed through data assimilation. To date, it is still not obvious how best to assimilate GRACE-TWS observations into a land surface model, in order to improve hydrological variables, and many details have yet to be worked out. This presentation discusses specific recent features of the assimilation of gridded GRACE-TWS data into the NASA Goddard Earth Observing System (GEOS-5) Catchment land surface model to improve soil moisture and shallow groundwater estimates at the continental scale. The major recent advancements introduced by the presented work with respect to earlier systems include: 1) the assimilation of gridded GRACE-TWS data product with scaling factors that are specifically derived for data assimilation purposes only; 2) the assimilation is performed through a 3D assimilation scheme, in which reasonable spatial and temporal error standard deviations and correlations are exploited; 3) the analysis step uses an optimized calculation and application of the analysis increments; 4) a poor-man's adaptive estimation of a spatially variable measurement error. This work shows that even if they are characterized by a coarse spatial and temporal resolution, the observed column integrated GRACE-TWS data have potential for improving our understanding of soil moisture and shallow groundwater variations. JF - American Geophysical Union Fall Meeting AU - Girotto, Manuela AU - De Lannoy, Gabrielle J M AU - Reichle, Rolf H AU - Rodell, Matthew AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract H53L EP - 02 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849310220?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=An+improved+grace+terrestrial+water+storage+assimilation+system+for+estimating+large-scale+soil+moisture+and+shallow+groundwater&rft.au=Girotto%2C+Manuela%3BDe+Lannoy%2C+Gabrielle+J+M%3BReichle%2C+Rolf+H%3BRodell%2C+Matthew%3BAnonymous&rft.aulast=Girotto&rft.aufirst=Manuela&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Craters on Pluto and Charon; the influence of low gravities, low impact speeds, and unique ices AN - 1849307185; 2016-109592 AB - The surfaces of Pluto and Charon display a wide variety of crater landforms. Pluto and Charon present a unique regime to investigate cratering physics due to a combination of circumstances: 1) their relatively low gravities--Pluto's gravity ( approximately 0.66 m s-2) falls between those of the large icy satellites of Jupiter and their mid-sized saturnian cousins, while Charon's gravity (0.28 m s (super -2) ) is more similar to the latter, 2) the low primary impact velocities onto Pluto and Charon's surfaces (average approximately 2 km s (super -1) ), and 3) the mix of surface ices likely present (e.g., N (sub 2) , CO, CH (sub 4) , H (sub 2) O). We use available images from both the Long Range Reconnaissance Imager (LORRI; Cheng et al., 2008, SSR 140, 189-215) and data from the Ralph (Reuter et al., 2008, SSR 140, 129-154) color/composition instruments to characterize crater morphologies and ejecta characteristics. This presentation will focus on understanding formation of craters on Pluto and Charon (with reference to deformation/degradation processes described in other presentations) and will include comparison to icy satellites. We will also discuss what inferences can be drawn about impactor characteristics. JF - American Geophysical Union Fall Meeting AU - Singer, Kelsi N AU - Schenk, Paul M AU - McKinnon, William B AU - Robbins, Stuart J AU - Moore, Jeffrey M AU - Bray, Veronica J AU - Spencer, John R AU - Stern, S Alan AU - Grundy, William M AU - Beyer, Ross A AU - Howett, Carley AU - Dalle Ore, Cristina AU - White, Oliver L AU - Parker, Alex H AU - Porter, Simon AU - Zangari, Amanda M AU - Young, Leslie A AU - Olkin, Catherine AU - Ennico Smith, Kimberly AU - Weaver, Harold A, Jr AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P41E EP - 07 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849307185?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Craters+on+Pluto+and+Charon%3B+the+influence+of+low+gravities%2C+low+impact+speeds%2C+and+unique+ices&rft.au=Singer%2C+Kelsi+N%3BSchenk%2C+Paul+M%3BMcKinnon%2C+William+B%3BRobbins%2C+Stuart+J%3BMoore%2C+Jeffrey+M%3BBray%2C+Veronica+J%3BSpencer%2C+John+R%3BStern%2C+S+Alan%3BGrundy%2C+William+M%3BBeyer%2C+Ross+A%3BHowett%2C+Carley%3BDalle+Ore%2C+Cristina%3BWhite%2C+Oliver+L%3BParker%2C+Alex+H%3BPorter%2C+Simon%3BZangari%2C+Amanda+M%3BYoung%2C+Leslie+A%3BOlkin%2C+Catherine%3BEnnico+Smith%2C+Kimberly%3BWeaver%2C+Harold+A%2C+Jr%3BAnonymous&rft.aulast=Singer&rft.aufirst=Kelsi&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Chemical composition of diagenetic features at lower Aeolis Mons, Mars as measured by curiosity's APXS AN - 1849306776; 2016-109637 AB - Curiosity's APXS investigation of the Murray Fm. (sols 755-950) at lower Aeolis Mons (Mt. Sharp) in Gale Crater, Mars has revealed (Mg, Ni)-sulfate diagenetic features and dark gray Ca-rich veins. The (Mg, Ni)-sulfate features occur as approximately 2 cm wide dendritic and botryoidal concretions that stand out in relief approximately 1 cm above the mudstone surface. APXS rasters over the features (Moenkopi, Mammoth, Morrison, Rosamond, Potatoe; sols 758-810) resulted in 1:1 molar variation of S and Mg consistent with a MgSO (sub 4) phase. The sulfate is not pure; the features are a mixture of 10-15% MgSO (sub 4) with the host mudstone. This mixture suggests the sulfates precipitated within pre-existing pore spaces, or were partially dissolved and replaced by sediment, preserving the crystal morphology. The sulfate features are enriched in Ni (2000 - 4250 ppm), indicating Ni-sulfate. The Murray Fm. mudstones that host the diagenetic features range to high SiO (sub 2) (60-73 wt%) and have bulk elemental signatures that are consistent with alteration by acid leaching. Low MgO (3.0 wt%) and low Ni (100-300 ppm) in the most apparently altered (highest SiO (sub 2) ) mudstones may link the acidic alteration with the fluids that formed the (Mg, Ni)-sulfates. Diagenetic Ca-sulfate-bearing veins that were abundant across Aeolis Palus persist at lower Aeolis Mons. A new vein type containing dark gray material as a separate crystalline phase within white Ca-sulfate veins was discovered in a cluster of veins in the Murray Fm. (Coalville, Alvord Mt., Amboy; sols 930-948). APXS rasters of the dark-toned material indicate high CaO (20-30 wt%) without concomitant increases in SO (sub 3) . Ge (up to 650 ppm; 6.5X surrounding bedrock) and MnO (up to 1.0 wt%; 4X surrounding bedrock) are both enriched in the dark veins. These chemical observations are consistent with fluorite, although F (L.O.D. >5%) is not detectable in APXS spectra. The diagenetic features indicate that Ca, Mg, and Ni were mobilized with S in aqueous fluids, and that F may have played a role in the acidic alteration of the Murray Fm. JF - American Geophysical Union Fall Meeting AU - Berger, Jeff A AU - Schmidt, Mariek E AU - Gellert, Ralf AU - Boyd, Nick AU - Campbell, John L AU - Desouza, Elstan AU - Fisk, Martin R AU - Perrett, Glynis M AU - Thompson, Lucy M AU - VanBommel, Scott AU - Yen, Albert S AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P43B EP - 2121 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849306776?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Chemical+composition+of+diagenetic+features+at+lower+Aeolis+Mons%2C+Mars+as+measured+by+curiosity%27s+APXS&rft.au=Berger%2C+Jeff+A%3BSchmidt%2C+Mariek+E%3BGellert%2C+Ralf%3BBoyd%2C+Nick%3BCampbell%2C+John+L%3BDesouza%2C+Elstan%3BFisk%2C+Martin+R%3BPerrett%2C+Glynis+M%3BThompson%2C+Lucy+M%3BVanBommel%2C+Scott%3BYen%2C+Albert+S%3BAnonymous&rft.aulast=Berger&rft.aufirst=Jeff&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Radii and shape of Pluto and Charon; preliminary results from new horizons AN - 1849306694; 2016-109593 AB - Accurate determinations of the mean radii of Pluto and Charon are important for establishing their densities and thus bulk composition. A fossil bulge, if present, would place constraints on the thermal and orbital evolution of these bodies [1, 2]. The New Horizons LORRI imaging system [3] has provided global images of Pluto and Charon, with best resolutions of 3.8 and 2.3 km/pix, respectively. Three separate approaches have been used to determine mean radii and shape from the images, two using a threshold DN value [4, 5] and one using a maximum gradient method. These approaches were validated using synthetic images having a range of photometric functions. Tradeoffs between the limb center location and the derived shape in individual images can be reduced by combining limb picks from different images. Preliminary results for both Pluto and Charon will be presented. [1] Robuchon & Nimmo, Icarus 216, 426, 2011. [2] McKinnon & Singer, DPS 46, abs. no. 419.07, 2014. [3] Cheng et al., SSR 140, 189, 2008. [4] Dermott & Thomas, Icarus 73, 25, 1988. [5] Thomason & Nimmo, LPSC 46, abs. no. 1462, 2015. JF - American Geophysical Union Fall Meeting AU - Nimmo, Francis AU - Lisse, Carey M AU - Umurhan, Orkan M AU - McKinnon, William B AU - Buie, Marc W AU - Lauer, Tod AU - Beyer, Ross A AU - Moore, Jeffrey M AU - Stern, Alan AU - Weaver, Harold A, Jr AU - Olkin, Catherine AU - Ennico Smith, Kimberly AU - Young, Leslie A AU - Bierson, Carver J AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P41E EP - 08 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849306694?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Radii+and+shape+of+Pluto+and+Charon%3B+preliminary+results+from+new+horizons&rft.au=Nimmo%2C+Francis%3BLisse%2C+Carey+M%3BUmurhan%2C+Orkan+M%3BMcKinnon%2C+William+B%3BBuie%2C+Marc+W%3BLauer%2C+Tod%3BBeyer%2C+Ross+A%3BMoore%2C+Jeffrey+M%3BStern%2C+Alan%3BWeaver%2C+Harold+A%2C+Jr%3BOlkin%2C+Catherine%3BEnnico+Smith%2C+Kimberly%3BYoung%2C+Leslie+A%3BBierson%2C+Carver+J%3BAnonymous&rft.aulast=Nimmo&rft.aufirst=Francis&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - The geology of Ceres; an overview AN - 1849306674; 2016-109605 AB - Ceres exhibits geological features indicating significant resurfacing due to impact cratering, tectonic stress, relaxation, mass displacement, upwelling, doming and possible cryo-volcanic and/or cryo-glacial processes. Ceres' surface is characterized by a smooth and rugged topography ranging from about -7.5km to 7.5km relative to a best-fit ellipsoidal shape with 482 X 482 X 446km. Ceres' topography has a much greater range in elevation relative to its ellipsoidal dimensions (3.2%) than the Moon and Mars (1% and 0.9%) or Earth (0.3%) but is lower compared to Vesta (15%). Its topography is comparable to the icy satellite Iapetus (3.6%) but significantly higher than that of other icy satellites (<1.8%). The topography of Ceres indicates a rigid crust manifesting a range of processes at large and small scales in the course of its geological evolution. Impact craters of all sizes, central peaks and rings, and a variety of ejecta blankets, as well as lineaments, apparent depression infills and distinctive bright spots characterize Ceres' surface. Impact craters range from pristine to highly degraded, comparable to that of various icy satellites, the Moon and Vesta, indicating an intensive cratering history over the age of the solar system as indicated by surface units with different crater densities. Some craters show upwelling dome-like structures on the floor. Bright spots with higher albedo than the surrounding terrain occur at different locations correlated with impact structures and tectonic crustal stress. These spots indicate material differences and possible time-variable effects related to cryo-processes either volcanic and/or glacial. Trough-like features and polygonal impact crater rims indicate crustal stress that compensates by tectonic processes. According to the relatively high topography to radius ratio, steep slopes, mass wasting, and flow processes are expected and observed. We thank the Dawn Science and Operations Team for their support. JF - American Geophysical Union Fall Meeting AU - Jaumann, Ralf AU - Russell, Christopher T AU - Raymond, Carol A AU - McSween, Harry Y, Jr AU - Williams, David A AU - Buczkowski, Debra AU - Hiesinger, Harald AU - De Sanctis, Maria C AU - Nathues, Andreas AU - Preusker, Frank AU - Roatsch, Thomas AU - Ammannito, Eleonora AU - Otto, Katharina AU - Krohn, Katrin AU - Stephan, Katrin AU - Matz, Klaus-Dieter AU - Elgner, Stefan AU - Kersten, Elke AU - Wagner, Roland J AU - Schroeder, Stefan AU - Schulzeck, Franziska AU - von der Gathen, Isabel AU - Schmedemann, Nico AU - Kneissl, Thomas AU - Nessemann, Adrian AU - Scully, Jennifer E C AU - Mest, Scott C AU - Marchi, Simone AU - Schenk, Paul M AU - McCord, Thomas B AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P42A EP - 05 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849306674?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+geology+of+Ceres%3B+an+overview&rft.au=Jaumann%2C+Ralf%3BRussell%2C+Christopher+T%3BRaymond%2C+Carol+A%3BMcSween%2C+Harry+Y%2C+Jr%3BWilliams%2C+David+A%3BBuczkowski%2C+Debra%3BHiesinger%2C+Harald%3BDe+Sanctis%2C+Maria+C%3BNathues%2C+Andreas%3BPreusker%2C+Frank%3BRoatsch%2C+Thomas%3BAmmannito%2C+Eleonora%3BOtto%2C+Katharina%3BKrohn%2C+Katrin%3BStephan%2C+Katrin%3BMatz%2C+Klaus-Dieter%3BElgner%2C+Stefan%3BKersten%2C+Elke%3BWagner%2C+Roland+J%3BSchroeder%2C+Stefan%3BSchulzeck%2C+Franziska%3Bvon+der+Gathen%2C+Isabel%3BSchmedemann%2C+Nico%3BKneissl%2C+Thomas%3BNessemann%2C+Adrian%3BScully%2C+Jennifer+E+C%3BMest%2C+Scott+C%3BMarchi%2C+Simone%3BSchenk%2C+Paul+M%3BMcCord%2C+Thomas+B%3BAnonymous&rft.aulast=Jaumann&rft.aufirst=Ralf&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Key recent scientific results from the Opportunity Rover's exploration of Cape Tribulation, Endeavour Crater, Mars AN - 1849306645; 2016-109665 AB - The Opportunity Rover is in its 11th year of exploration, currently exploring the Cape Tribulation rim segment of the approximately 22 km wide Noachian Endeavour Crater and its tilted and fractured outcrops. A key target for Opportunity's measurements has been the Spirit of Saint Louis crater (SoSL), which is approximately 25 m wide, oval in plan view, shallow, flat-floored, and has a slightly raised rim. SoSL crater is surrounded by an apron of bright, polygonally-shaped outcrops and is superimposed on a gentle swale in Cape Tribulation. Rocks in a thin reddish zone on the rim are enriched in hematite, Si, and Ge, and depleted in Fe, relative to surrounding rocks. Apron rocks include an outcrop also enriched in Si and Ge, and slightly depleted in Fe. In general rocks in the crater and apron have elevated S levels relative to Shoemaker formation breccias, tracking values observed in the Cook Haven (gentle swale superimposed on Murray Ridge and site of Opportunity's 5th winter site) and the Hueytown fracture (running perpendicular to Cape Tribulation) outcrops. SoSL crater lies just to the west of Marathon Valley, a key target for exploration by Opportunity because five separate CRISM observations indicate the presence of Fe/Mg smectites on the upper valley floor. Opportunity data show that low relief, relatively bright, wind-scoured outcrops dominate the valley floor where not covered by scree and soil shed from surrounding walls. Initial reconnaissance shows that the outcrops are breccias with compositions similar to the typical SoSL crater apron and floor rocks, although only the very upper portion of the valley has been explored as of August 2015. Pervasive but modest aqueous alteration of Endeavour's rim is implied by the combination of CRISM and Opportunity data, providing insight into early aqueous processes dominated in this location by relatively low water to rock ratios, and at least in part associated with enhanced fluid flow along fractures. JF - American Geophysical Union Fall Meeting AU - Arvidson, Raymond E AU - Squyres, Steven W AU - Gellert, Ralf AU - Herkenhoff, Kenneth E AU - Mittlefehldt, David W AU - Crumpler, Larry S AU - McLennan, Scott M AU - Farrand, William H AU - Jolliff, Bradley L AU - Morris, Richard V AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P43D EP - 2151 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849306645?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Key+recent+scientific+results+from+the+Opportunity+Rover%27s+exploration+of+Cape+Tribulation%2C+Endeavour+Crater%2C+Mars&rft.au=Arvidson%2C+Raymond+E%3BSquyres%2C+Steven+W%3BGellert%2C+Ralf%3BHerkenhoff%2C+Kenneth+E%3BMittlefehldt%2C+David+W%3BCrumpler%2C+Larry+S%3BMcLennan%2C+Scott+M%3BFarrand%2C+William+H%3BJolliff%2C+Bradley+L%3BMorris%2C+Richard+V%3BAnonymous&rft.aulast=Arvidson&rft.aufirst=Raymond&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Whipple observations AN - 1849306632; 2016-109648 AB - The solar system that we know today was shaped dramatically by events in its dynamic formative years. These events left their signatures at the distant frontier of the solar system, in the small planetesimal relics that populate the vast Oort Cloud, the Scattered Disk, and the Kuiper Belt. To peer in to the history and evolution of our solar system, the Whipple mission will survey small bodies in the large volume that begins beyond the orbit of Neptune and extends out to thousands of AU. Whipple detects these objects when they occult distant stars. The distance and size of the occulting object is reconstructed from well-understood diffraction effects in the object's shadow. Whipple will observe tens of thousands of stars simultaneously with high observing efficiency, accumulating roughly a billion "star-hours" of observations over its mission life. Here we describe the Whipple observing strategy, including target selection and scheduling. JF - American Geophysical Union Fall Meeting AU - Trangsrud, Amy AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P43C EP - 2133 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849306632?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Whipple+observations&rft.au=Trangsrud%2C+Amy%3BAnonymous&rft.aulast=Trangsrud&rft.aufirst=Amy&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - X-ray photochemical alteration of planetary samples during in situ micro-XRF analysis AN - 1849305286; 2016-109660 AB - PIXL (Planetary Instrument for X-ray Lithochemistry; selected for the Mars 2020 mission contact science payload) uses a polycapillary to focus X-rays to a approximately 100 mu m spot on sample surfaces, providing higher spatial resolution, higher X-ray flux, and higher fluorescence counts compared to previously flown planetary XRF instruments. Photochemical changes in organic materials occurring during investigations employing x-rays have been reported, particularly for biological samples examined in synchrotrons (e.g. George et al., J. Synchrotron Radiation, 19:875-876). However, little is known about the effect energies and fluxes typical to micro-XRF instruments may have on the organic molecules that are commonly preserved in rocks and sediments. In particular, it is essential to understand the effect of micro-XRF on organics preserved near surfaces that are later subjected to contact science that focuses on organic geochemistry (e.g. UV Raman/fluorescence instruments). We report results of an investigation in which samples containing organic molecules were exposed to X-ray energies and fluxes typical to micro-XRF. Samples containing alkanes and polycyclic aromatic hydrocarbons were characterized by GC-MS and UV Raman/fluorescence before being subjected to various X-ray energies and fluxes typical of PIXL. Following X-ray irradiation, samples were again characterized by GC-MS and UV Raman/fluorescence in order to characterize photochemical effects. JF - American Geophysical Union Fall Meeting AU - Flannery, David T AU - Tuite, Michael L, Jr AU - Hodyss, Robert P AU - Allwood, Abigail AU - Bhartia, Rohit AU - Abbey, William J AU - Williford, Kenneth H AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P43D EP - 2146 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849305286?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=X-ray+photochemical+alteration+of+planetary+samples+during+in+situ+micro-XRF+analysis&rft.au=Flannery%2C+David+T%3BTuite%2C+Michael+L%2C+Jr%3BHodyss%2C+Robert+P%3BAllwood%2C+Abigail%3BBhartia%2C+Rohit%3BAbbey%2C+William+J%3BWilliford%2C+Kenneth+H%3BAnonymous&rft.aulast=Flannery&rft.aufirst=David&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Interior evolution of Ceres and Vesta revealed by dawn AN - 1849305176; 2016-109603 AB - Dawn's exploration of Vesta and Ceres has revealed their geophysical characteristics, informing the processes that shaped the bodies. Dawn has determined the average diameter of Ceres to be 940 km, smaller than the previously estimated 975 km [1]. This implies a density of 2160 kg/m (super 3) , indicating that Ceres is less differentiated than predicted [2]. Ceres' entire surface is cratered, implying the lack of a thick (10's of km) water ice layer at the surface. Variability in Ceres' crater morphology indicates that the near-surface layer has variable strength and rheology, likely due to heterogeneity in the near-surface mixture of rock, ice and salt. These observations may indicate that Ceres lost a significant amount of an original surface ice layer due to impact erosion. The lack of large impact basins on Ceres can be interpreted to be the result of viscous relaxation. These data provide insights into Ceres' thermal evolution and mechanical properties, which appear to be unique to this warm, icy body. In contrast to Ceres, Vesta formed very early and hot, resulting in a fully differentiated body. Dawn's exploration revealed geophysical and geochemical evidence for an iron-rich core and basaltic crust. However, unlike the pre-Dawn paradigm of Vesta's evolution, Dawn found that the crust and mantle of Vesta are less distinct than predicted by classical differentiation models. [1] Thomas, P. C., et al., Differentiation of the asteroid Ceres as revealed by its shape, Nature, 437, 224-226, 2005; [2] McCord et al., Ceres: its origin, evolution and structure and Dawn's potential contribution, Space Sci. Rev. DOI 10.1007/s11214-010-9729-9, 2011. JF - American Geophysical Union Fall Meeting AU - Raymond, Carol A AU - Russell, Christopher T AU - Bland, Michael T AU - Castillo, Julie C AU - De Sanctis, Maria C AU - Ermakov, Anton AU - Jaumann, Ralf AU - Konopliv, Alex S AU - Marchi, Simone AU - McCord, Thomas B AU - McSween, Harry Y, Jr AU - Nathues, Andreas AU - Park, Ryan S AU - Prettyman, Thomas H AU - Toplis, Michael J AU - Zuber, Maria T AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P42A EP - 03 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849305176?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Interior+evolution+of+Ceres+and+Vesta+revealed+by+dawn&rft.au=Raymond%2C+Carol+A%3BRussell%2C+Christopher+T%3BBland%2C+Michael+T%3BCastillo%2C+Julie+C%3BDe+Sanctis%2C+Maria+C%3BErmakov%2C+Anton%3BJaumann%2C+Ralf%3BKonopliv%2C+Alex+S%3BMarchi%2C+Simone%3BMcCord%2C+Thomas+B%3BMcSween%2C+Harry+Y%2C+Jr%3BNathues%2C+Andreas%3BPark%2C+Ryan+S%3BPrettyman%2C+Thomas+H%3BToplis%2C+Michael+J%3BZuber%2C+Maria+T%3BAnonymous&rft.aulast=Raymond&rft.aufirst=Carol&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - ChemCam first discovery of high silica sediments in Gale Crater AN - 1849302498; 2016-109635 AB - On sol 991, The Curiosity rover ascended a steep slope to Marias Pass in Gale Crater. Close to the top, ChemCam analyzed the rock target Elk from an apparent bright unit. Utilizing the new elemental calibration implemented for ChemCam in the summer of 2015, four of five points on Elk were measured to contain 76-82 wt% SiO (sub 2) and >3 wt% TiO (sub 2) , whereas the last point showed elevated CaSO (sub 4) . The Elk target is identified to be part of the Murray formation, and hence related to the Pahrump area mudstones that were subjected to intensive studies by the Curiosity rover team over the sols 758-948. While the Murray formation west of Elk did show elevated SiO (sub 2) ( approximately 65 wt%) compared to the Pahrump area, no targets with similarly high SiO (sub 2) wt% as Elk were observed, thus prompting--together with detection of anomalously high DAN H signals in the same area--the Curiosity rover to return to the Elk target area for additional analyses. This return led to numerous additional high Si observations (targets Pistol, Mary, Shepard, Dublin Gulch and Frog) that all corroborated the initial high Si observation at Elk. Additionally, the Alpha Particle X-ray Spectrometer (APXS) analyzed the target Lamoose and found SiO (sub 2) content in excess of 72 wt% and moderately elevated TiO (sub 2) . Considering the difference in footprint (1.7 cm for APXS vs approximately 400mu m for ChemCam) and the fact that the target couldn't be brushed, this is considered a good corroboration of the very high Si observed with ChemCam. These targets suggest that the Elk-area targets represent an end-member of the Murray formation, but there are multiple working hypotheses for the origin of the high SiO (sub 2) and TiO (sub 2) in these: 1. primary precipitates from the water column of a lake, 2. a post-depositional leaching/weathering front and 3. a hydrothermal silica precipitate. JF - American Geophysical Union Fall Meeting AU - Frydenvang, Jens AU - Gasda, Patrick J AU - Wiens, Roger C AU - Newsom, Horton E AU - Bridges, John AU - Gasnault, Olivier AU - Maurice, Sylvestre AU - Forni, Olivier AU - Mangold, Nicolas AU - Cousin, Agnes AU - Payre, Valerie AU - Anderson, Ryan B AU - Mitrofanov, Igor G AU - Jun, Insoo AU - Rice, Melissa S AU - Milliken, Ralph AU - Edwards, Peter AU - Vaniman, David T AU - Morris, Richard V AU - Blake, David F AU - Gellert, Ralf AU - Thompson, Lucy M AU - Clark, Benton C AU - Hurowitz, Joel AU - Sumner, Dawn Y AU - Ehlmann, Bethany L AU - Fraeman, Abigail AU - Kinch, Kjartan M AU - Madsen, Morten B AU - Calef, Fred AU - Grotzinger, John P AU - Vasavada, Ashwin R AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P43B EP - 2119 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849302498?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=ChemCam+first+discovery+of+high+silica+sediments+in+Gale+Crater&rft.au=Frydenvang%2C+Jens%3BGasda%2C+Patrick+J%3BWiens%2C+Roger+C%3BNewsom%2C+Horton+E%3BBridges%2C+John%3BGasnault%2C+Olivier%3BMaurice%2C+Sylvestre%3BForni%2C+Olivier%3BMangold%2C+Nicolas%3BCousin%2C+Agnes%3BPayre%2C+Valerie%3BAnderson%2C+Ryan+B%3BMitrofanov%2C+Igor+G%3BJun%2C+Insoo%3BRice%2C+Melissa+S%3BMilliken%2C+Ralph%3BEdwards%2C+Peter%3BVaniman%2C+David+T%3BMorris%2C+Richard+V%3BBlake%2C+David+F%3BGellert%2C+Ralf%3BThompson%2C+Lucy+M%3BClark%2C+Benton+C%3BHurowitz%2C+Joel%3BSumner%2C+Dawn+Y%3BEhlmann%2C+Bethany+L%3BFraeman%2C+Abigail%3BKinch%2C+Kjartan+M%3BMadsen%2C+Morten+B%3BCalef%2C+Fred%3BGrotzinger%2C+John+P%3BVasavada%2C+Ashwin+R%3BAnonymous&rft.aulast=Frydenvang&rft.aufirst=Jens&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Indigenous fixed nitrogen on Mars; implications for habitability AN - 1849302388; 2016-109643 AB - Nitrate has been detected in Mars surface sediments and aeolian deposits by the Sample Analysis at Mars (SAM) instrument on the Mars Science Laboratory Curiosity rover (Stern et al., 2015). This detection is significant because fixed nitrogen is necessary for life, a requirement that drove the evolution of N-fixing metabolism in life on Earth. The question remains as to the extent to which a primitive N cycle ever developed on Mars, and whether N is currently being deposited on the Martian surface at a non-negligible rate. It is also necessary to consider processes that could recycle oxidized N back into the atmosphere, and how these processes may have changed the soil inventory of N over time. The abundance of fixed nitrogen detected as NO from thermal decomposition of nitrate is consistent with both delivery of nitrate via impact generated thermal shock early in martian history and dry deposition from photochemistry of thermospheric NO, occurring in the present. Processes that could recycle N back into the atmosphere may include nitrate reduction by Fe(II) in aqueous environments on early Mars, impact decomposition, and/or UV photolysis. In order to better understand the history of nitrogen fixation on Mars, we look to cycling of N in Mars analog environments on Earth such as the Atacama Desert and the Dry Valleys of Antarctica. In particular, we examine the ratio of nitrate to perchlorate (NO (sub 3) (super -) /ClO (sub 4) (super -) ) in these areas compared to those calculated from data acquired on Mars. JF - American Geophysical Union Fall Meeting AU - Stern, Jennifer C AU - Sutter, Brad AU - Navarro-Gonzalez, Rafael AU - McKay, Christopher P AU - Freissinet, Caroline AU - Archer, Doug, Jr AU - Eigenbrode, Jennifer L AU - Mahaffy, Paul R AU - Conrad, Pamela G AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P43B EP - 2127 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849302388?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Indigenous+fixed+nitrogen+on+Mars%3B+implications+for+habitability&rft.au=Stern%2C+Jennifer+C%3BSutter%2C+Brad%3BNavarro-Gonzalez%2C+Rafael%3BMcKay%2C+Christopher+P%3BFreissinet%2C+Caroline%3BArcher%2C+Doug%2C+Jr%3BEigenbrode%2C+Jennifer+L%3BMahaffy%2C+Paul+R%3BConrad%2C+Pamela+G%3BAnonymous&rft.aulast=Stern&rft.aufirst=Jennifer&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - First use of SAM onboard calibration gas cell AN - 1849302384; 2016-109644 AB - The Sample Analysis at Mars (SAM) instrument (Mahaffy et al. 2012) suite on Curiosity completed its first measurement of the onboard calibration gas cell on MSL Mission Sol 1042. The cell consists of a gas mixture of four primary gases, along with trace fluorinated hydrocarbon high mass calibrants. The mix is comprised of approximately 25% CO (sub 2) , N (sub 2) , Xe and Ar, where the 129Xe has been given a three times enrichment relative to terrestrial xenon in order to distinguish it isotopically from Martian atmospheric Xe. Analysis of the calibration cell is intended to identify changes in instrument performance between pre-launch calibrations and operations on Mars, for any of the three main subsystems in SAM: the Quadrupole Mass Spectrometer (QMS), Tunable Laser Spectrometer (TLS), and Gas Chromatograph (GC). Here we present the experimental approach, results, and implications for instrument performance after almost three years of measurements on Mars. JF - American Geophysical Union Fall Meeting AU - Malespin, Charles AU - Trainer, Melissa G AU - Manning, Heidi L AU - Franz, Heather B AU - Conrad, Pamela G AU - Raaen, Eric AU - Webster, Christopher R AU - Flesch, Gregory AU - Eigenbrode, Jennifer L AU - Wong, Michael H AU - Mahaffy, Paul R AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P43B EP - 2128 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849302384?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=First+use+of+SAM+onboard+calibration+gas+cell&rft.au=Malespin%2C+Charles%3BTrainer%2C+Melissa+G%3BManning%2C+Heidi+L%3BFranz%2C+Heather+B%3BConrad%2C+Pamela+G%3BRaaen%2C+Eric%3BWebster%2C+Christopher+R%3BFlesch%2C+Gregory%3BEigenbrode%2C+Jennifer+L%3BWong%2C+Michael+H%3BMahaffy%2C+Paul+R%3BAnonymous&rft.aulast=Malespin&rft.aufirst=Charles&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Preserving the science legacy from the Apollo missions to the Moon AN - 1849302315; 2016-109901 AB - Six Apollo missions landed on the Moon from 1969-72, returning to Earth 382 kg of lunar rock, soil, and core samples-among the best documented and preserved samples on Earth that have supported a robust research program for 45 years. From mission planning through sample collection, preliminary examination, and subsequent research, strict protocols and procedures are followed for handling and allocating Apollo subsamples. Even today, 100s of samples are allocated for research each year, building on the science foundation laid down by the early Apollo sample studies and combining new data from today's instrumentation, lunar remote sensing missions and lunar meteorites. Today's research includes advances in our understanding of lunar volatiles, lunar formation and evolution, and the origin of evolved lunar lithologies. Much sample information is available to researchers at curator.jsc.nasa.gov. Decades of analyses on lunar samples are published in LPSC proceedings volumes and other peer-reviewed journals, and tabulated in lunar sample compendia entries. However, for much of the 1969-1995 period, the processing documentation, individual and consortia analyses, and unpublished results exist only in analog forms or primitive digital formats that are either inaccessible or at risk of being lost forever because critical data from early investigators remain unpublished. We have initiated several new efforts to rescue some of the early Apollo data, including unpublished analytical data. We are scanning NASA documentation that is related to the Apollo missions and sample processing, and we are collaborating with IEDA to establish a geochemical database called Moon DB. To populate this database, we are working with prominent lunar PIs to organize and transcribe years of both published and unpublished data. Other initiatives include micro-CT scanning of complex lunar samples to document their interior structure (e.g. clasts, vesicles); linking high-resolution scans of Apollo film products to samples; and new procedures for systematic high resolution photography of samples before additional processing, enabling detailed 3D reconstructions of the samples. All of these efforts will provide comprehensive access to Apollo samples and support better curation of the samples for decades to come. JF - American Geophysical Union Fall Meeting AU - Todd, Nanacy Stella AU - Evans, Cynthia A AU - Zeigler, Ryan A AU - Lehnert, Kerstin A AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract U23A EP - 04 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849302315?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Preserving+the+science+legacy+from+the+Apollo+missions+to+the+Moon&rft.au=Todd%2C+Nanacy+Stella%3BEvans%2C+Cynthia+A%3BZeigler%2C+Ryan+A%3BLehnert%2C+Kerstin+A%3BAnonymous&rft.aulast=Todd&rft.aufirst=Nanacy&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Overlapping ballistic ejecta fields; separating distinct blasts at Kings Bowl, Idaho AN - 1849300302; 2016-106191 AB - Kings Bowl is a approximately 2200ka pit crater created by a phreatic blast along a volcanic fissure in the eastern Snake River Plain (ESRP), Idaho. The main crater measures approximately 80 m in length, 30 m in width, and 30 m in depth, with smaller pits located nearby on the Great Rift fissure, and has been targeted by the FINESSE team as a possible analogue for Cyane Fossae, Mars. The phreatic eruption is believed to have occurred due to the interaction of groundwater with lava draining back into the fissure following a lava lake high stand, erupting already solidified basalt from this and previous ERSP lava flows. The contemporaneous draw back of the lava with the explosions may conceal some smaller possible blast pits as more lava drained into the newly formed pits. Ballistic ejecta from the blasts occur on both sides of the fissure. To the east, the ballistic blocks are mantled by fine tephra mixed with eolian dust, the result of a westerly wind during the explosions. We use differential GPS to map the distribution of ballistic blocks on the west side of the fissure, recording position, percent vesiculation, and the length of 3 mutually perpendicular axes for each block >20 cm along multiple transects parallel to the fissure. From the several hundred blocks recorded, we have been able to separate the ballistic field into several distinct blast deposits on the basis of size distributions and block concentration. The smaller pits identified from the ballistic fields correspond broadly to the northern and southern limits of the tephra/dust field east of the fissure. Soil formation and bioturbation of the tephra by sagebrush have obliterated any tephrostratigraphy that could have been linked to individual blasts. The ballistic block patterns at Kings Bowl may be used to identify distinct ejecta groups in high-resolution imagery of Mars or other planetary bodies. JF - American Geophysical Union Fall Meeting AU - Borg, Chris AU - Kobs-Nawotniak, Shannon E AU - Hughes, Scott S AU - Sears, Derek W G AU - Heldmann, Jennifer L AU - Lim, Darlene Sze Shien AU - Haberle, Christopher William AU - Sears, Hazel AU - Elphic, Richard C AU - Kobayashi, Linda T AU - Garry, William Brent AU - Neish, Catherine AU - Karunatillake, Suniti AU - Button, Nicole AU - Purcell, Sean AU - Mallonee, Hester AU - Ostler, Brandon AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract V51D EP - 3065 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849300302?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Overlapping+ballistic+ejecta+fields%3B+separating+distinct+blasts+at+Kings+Bowl%2C+Idaho&rft.au=Borg%2C+Chris%3BKobs-Nawotniak%2C+Shannon+E%3BHughes%2C+Scott+S%3BSears%2C+Derek+W+G%3BHeldmann%2C+Jennifer+L%3BLim%2C+Darlene+Sze+Shien%3BHaberle%2C+Christopher+William%3BSears%2C+Hazel%3BElphic%2C+Richard+C%3BKobayashi%2C+Linda+T%3BGarry%2C+William+Brent%3BNeish%2C+Catherine%3BKarunatillake%2C+Suniti%3BButton%2C+Nicole%3BPurcell%2C+Sean%3BMallonee%2C+Hester%3BOstler%2C+Brandon%3BAnonymous&rft.aulast=Borg&rft.aufirst=Chris&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Multiple magma batches recorded in tephra deposits from the toba complex, Sumatra. AN - 1849299808; 2016-106229 AB - The Toba Caldera Complex is the largest Quaternary caldera on Earth, and has generated three voluminous and compositionally similar rhyolitic tuffs, viz. the Oldest (OTT, 800 ka), Middle (MTT, approximately 500 ka) and Youngest Toba Tuffs (YTT, 75 ka). These tephra deposits are widespread across Indonesia, Malaysia, South China Sea, Sea of Bengal, India and Indian Ocean and provide useful stratigraphic markers in oceanic, lacustrine and terrestrial environments. Single shard trace element analysis of these deposits reveals the changing availability of different batches of magma through time, with Sr, Ba and Y contents defining 5 discrete magma populations in YTT, 4 populations in MTT and only a single, low Ba population in OTT. Within an individual eruption these populations are clearly distinct, but between eruptions (e.g. MTT and YTT) some of these populations overlap while others do not, indicating both the longevity (and/or continuous supply of fresh material) and evolution of these magma batches in the Toba Complex. Major element compositions of the different groups show equilibration at different pressures (based on Q'-Ab'-Or'), with the equilibration of low Ba populations at approximately 160 MPa, increasing to depths of approximately 210 MPa for the highest Ba population. The proportions of different populations of glass in distal YTT shows that relatively little of the high Ba population makes it into the distal record across India, and that this population appears to be over-represented in the proximal free glass and pumice from the caldera walls. This data may shed light on magma availability and tephra dispersal during the YTT eruption. Similarly, the glass composition of individual pumices from proximal deposits record regional, compositional and temporal differences in the erupted products. These show, for example, the apparent mingling of some of the magma batches and also that the high Ba population appears early (i.e. stratigraphically lower) in the northern caldera wall. JF - American Geophysical Union Fall Meeting AU - Pearce, Nicholas J G AU - Westgate, John AU - Gatti, Emma AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract V51F EP - 3102 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299808?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Multiple+magma+batches+recorded+in+tephra+deposits+from+the+toba+complex%2C+Sumatra.&rft.au=Pearce%2C+Nicholas+J+G%3BWestgate%2C+John%3BGatti%2C+Emma%3BAnonymous&rft.aulast=Pearce&rft.aufirst=Nicholas+J&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Implications of dielectric breakdown weathering for the lunar regolith AN - 1849299695; 2016-105816 AB - Solar energetic particles (SEPs) penetrate the lunar regolith to depths of approximately 1 mm and cause deep dielectric charging. The greatest charging occurs in permanently shadowed regions (PSRs), where temperatures make the electrical conductivity extremely low, which inhibits dissipating the charge buildup. Charging by very large SEP events may create subsurface electric fields that are strong enough to cause dielectric breakdown, or sparking, in the upper approximately 1 mm. Previous work has shown that, in PSRs, this breakdown weathering may have affected 10-25% of the meteoritically gardened regolith in PSRs and may thus be comparable to meteoritic weathering. But even regolith at lower latitudes can reach temperatures <100 K at night, causing it to dissipate charging in a few days--still enough to allow significant charging during large SEP events. Consequently, regolith at lower latitudes may also be susceptible to breakdown. We show how up to a few percent of gardened regolith at lower latitudes may have experienced breakdown. We also estimate the percentage of regolith that experienced breakdown during the two events detected in January and March 2012 by the Cosmic Ray Telescope for the Effects of Radiation (CRaTER) aboard the Lunar Reconnaissance Orbiter (LRO). Finally, we discuss what this more global view of breakdown weathering implies about the possibility of Apollo and Luna soil samples containing material that may have experienced breakdown. JF - American Geophysical Union Fall Meeting AU - Jordan, Andrew P AU - Stubbs, Timothy J AU - Wilson, Jody K AU - Schwadron, Nathan AU - Spence, Harlan E AU - Izenberg, Noam AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53B EP - 2114 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299695?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Implications+of+dielectric+breakdown+weathering+for+the+lunar+regolith&rft.au=Jordan%2C+Andrew+P%3BStubbs%2C+Timothy+J%3BWilson%2C+Jody+K%3BSchwadron%2C+Nathan%3BSpence%2C+Harlan+E%3BIzenberg%2C+Noam%3BAnonymous&rft.aulast=Jordan&rft.aufirst=Andrew&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Basin formation and cratering on Mercury revealed by MESSENGER AN - 1849299678; 2016-105801 AB - Mercury has been bombarded by asteroids and comets throughout its history. The resulting craters and basins are the dominant topographic features on the planet. Although visible basins contain some of the most interesting tectonic features, plains, and evidence of vertical stratigraphy, they fall far short of saturating the surface. Nevertheless, Mercury has a greater spatial density of peak-ring basins and protobasins than any other Solar System body, partly because these morphologies begin at smaller sizes than on most bodies. Cratering at approximately three times the cratering rate on the Moon, combined with likely plains-forming volcanism, prevents recognition of surface features older than 4.0 to 4.1 Ga. Severe losses of craters <50 km in diameter (<20 km in some places) are ascribed to extensive formation of intercrater plains. Estimates of the cratering chronology of Mercury suggest that most plains formation ended about 3.6 to 3.7 Ga, though activity has continued in a few small regions until much more recently (e.g., inside the Rachmaninoff basin). Mercury, compared with other terrestrial bodies, is struck by projectiles impacting at much higher velocities, which is probably responsible for the formation of abundant secondary craters that dominate the numbers of craters <10 km diameter on older plains surfaces. The history of high-velocity bombardment has resulted in the production of abundant impact melts and has churned and processed the regolith, and eroded older topography, more thoroughly than on other Solar System bodies. Although the possible role of Mercury-specific impactors ("vulcanoids") cannot be excluded, imaging searches by MESSENGER have revealed no remaining vulcanoids and no other evidence suggests that Mercury has been bombarded by anything other than the same populations of asteroids and comets that have impacted the Moon and other terrestrial planets from the end of the period of heavy bombardment 3.8 to 3.9 Ga to the present. JF - American Geophysical Union Fall Meeting AU - Chapman, Clark R AU - Fassett, Caleb AU - Marchi, Simone AU - Merline, William J AU - Ostrach, Lillian Rose AU - Prockter, Louise M AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53A EP - 2098 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299678?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Basin+formation+and+cratering+on+Mercury+revealed+by+MESSENGER&rft.au=Chapman%2C+Clark+R%3BFassett%2C+Caleb%3BMarchi%2C+Simone%3BMerline%2C+William+J%3BOstrach%2C+Lillian+Rose%3BProckter%2C+Louise+M%3BAnonymous&rft.aulast=Chapman&rft.aufirst=Clark&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - RIS (super 4) E at Kilauea's December 1974 flow; chemical, mineralogical and spectral characteristics of Hawaiian basaltic alteration products measured with portable instruments AN - 1849299676; 2016-105694 AB - A major objective of the SSERVI RIS4E (Remote, In-situ, and Synchrotron Studies for Science and Exploration) investigation is to evaluate the performance of portable chemical and mineralogical instruments in a variety of planetary volcanic analog settings. To that end, we used a suite of true/proxy portable instruments (XRF, LIBS, XRD, near-IR and mid-IR spectrometers), to measure the chemical and spectral characteristics of young basaltic flows (erupted December 1974, or D1974) within the southwest rift zone of Kilauea, Hawaii. The D1974 lavas exhibit multiple flow morphologies and textures, and have undergone alteration by a variety of processes, including acid weathering, oxidation and devitrification. The mineralogy, chemistry and infrared spectral properties of select samples from these altered surfaces have been well characterized by previous groups using high resolution (e.g. SEM, TEM) and/or laboratory measurements (XRD, Mossbauer, infrared). Typical alteration products include coatings of Fe-Ti-oxide+ or -an overlying silica-rich coating. Coatings are commonly discontinuous and vary in color. Oxidation fronts are also present, most visible as reddish brown discoloration along the edges of broken and uplifted flow crusts. The previous detailed characterizations provide the basis for evaluating instrument performance and also allow us to assess areas where portable instruments can contribute new information to current understanding. These areas include characterizing the spatial variability in alteration chemistry/mineralogy, relating chemical/mineralogical properties to texture and context, and comparing chemical/mineralogical variations with infrared spectral properties. Because infrared spectra are commonly used to assess compositional variations of a site remotely, either from the ground or from orbit, relating changes in chemistry and mineralogy to spectral variations is particularly important. Last, the D1974 site provides an excellent location to test the performance of portable chemical instruments on coated surfaces of variable texture. Results from this multi-technique approach will be presented at the meeting. JF - American Geophysical Union Fall Meeting AU - Young, Kelsey E AU - Rogers, Deanne AU - Dyar, Melinda Darby AU - Ito, Gen AU - Yant, Marcella AU - McAdam, Amy AU - Bleacher, Jacob E AU - Glotch, Timothy D AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P31A EP - 2051 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299676?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=RIS+%28super+4%29+E+at+Kilauea%27s+December+1974+flow%3B+chemical%2C+mineralogical+and+spectral+characteristics+of+Hawaiian+basaltic+alteration+products+measured+with+portable+instruments&rft.au=Young%2C+Kelsey+E%3BRogers%2C+Deanne%3BDyar%2C+Melinda+Darby%3BIto%2C+Gen%3BYant%2C+Marcella%3BMcAdam%2C+Amy%3BBleacher%2C+Jacob+E%3BGlotch%2C+Timothy+D%3BAnonymous&rft.aulast=Young&rft.aufirst=Kelsey&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Cassini RADAR observations of Saturn's largest moon, Titan AN - 1849299668; 2016-105906 AB - The Cassini RADAR is a versatile instrument capable of operating in imaging, altimetry, scatterometry, radiometry, and, most recently, sounding modes. Despite vastly different material properties and environmental conditions, Titan's methane-based hydrologic system drives climatic and geologic processes that result in morphologic features with striking similarity to terrestrial counterparts, including vast equatorial dune fields, well-organized channel networks that route material through erosional and depositional landscapes defining source-to-sink sediment transport systems, and, perhaps most astonishingly, lakes and seas filled with liquid hydrocarbons. Using its various operating modes, the Cassini RADAR has provided a wealth of information regarding Titan's active surface-atmosphere system. In Synthetic Aperture Radar (SAR) mode, the RADAR has unveiled Titan's surface by producing backscatter maps with pixel scales of approximately 300 m. In altimetry mode, the RADAR has shown the elevation profile of surface features, including the liquid elevation of Titan's lakes and seas, revealed the roughness characteristics of the surface, and constrained the global shape. Most recently, the altimetry mode has doubled as a radar sounder that has successfully probed the depth and absorptivity of the lakes and seas. Data from the scatterometry and radiometry modes have been used to constrain material properties, including dielectric constants and volume scattering fractions, surface texture, and derive seasonal and diurnal temperature variations. Collectively, these datasets have revealed Titan's strange yet familiar nature, and demonstrated that it is one of the most compelling targets in our solar system. During our presentation, we will summarize these capabilities and review some of the most specular discoveries made by the Cassini RADAR. JF - American Geophysical Union Fall Meeting AU - Hayes, Alexander G, Jr AU - Mastrogiuseppe, Marco AU - Lunine, Jonathan I AU - Lorenz, Ralph D AU - Wall, Stephen D AU - Stiles, Bryan W AU - Kirk, Randolph L AU - Elachi, Charles AU - Hofgartner, Jason Daniel AU - Birch, Samuel P AU - Le Gall, Alice Anne AU - Poggiali, Valerio AU - Zebker, Howard A AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53G EP - 08 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299668?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Cassini+RADAR+observations+of+Saturn%27s+largest+moon%2C+Titan&rft.au=Hayes%2C+Alexander+G%2C+Jr%3BMastrogiuseppe%2C+Marco%3BLunine%2C+Jonathan+I%3BLorenz%2C+Ralph+D%3BWall%2C+Stephen+D%3BStiles%2C+Bryan+W%3BKirk%2C+Randolph+L%3BElachi%2C+Charles%3BHofgartner%2C+Jason+Daniel%3BBirch%2C+Samuel+P%3BLe+Gall%2C+Alice+Anne%3BPoggiali%2C+Valerio%3BZebker%2C+Howard+A%3BAnonymous&rft.aulast=Hayes&rft.aufirst=Alexander&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Preliminary geological map of the Ac-H-5 Fejokoo quadrangle of Ceres; an integrated mapping study using Dawn spacecraft data AN - 1849299629; 2016-105869 AB - In order to enable methodical geologic mapping of the surface of Ceres the Dawn Science Team divided its surface into fifteen quadrangles. A preliminary map of the Fejokoo quadrangle is presented here. This region, located between 21 degrees -66 degrees N and 270-0 degrees E, hosts four primary features: (1) the centrally located, 90 km diameter, distinctly hexagonal impact crater Fejokoo; (2) a small unnamed crater midway up the eastern boundary of the quadrangle which contains and is surrounded by bright material; (3) an unnamed degraded crater NW of Fejokoo that contains lobate material deposits on both sides of the crater's S rim; and (4) a heavily cratered unit in the NW portion of the quadrangle. Key objectives for the ongoing mapping of this quadrangle are to assess the types of processes that may be responsible for the creation of the hexagonal Fejokoo crater, identifying the source and nature of the bright material on the eastern boundary, establishing possible mechanisms for the emplacement of lobate material deposits in Fejokoo and the unnamed crater to its NW, and establishing a detailed geological history of the quadrangle. The Fejokoo region is not associated with any major albedo feature identified by the Hubble Space Telescope (Li et al., 2006). At the time of this writing geologic mapping was performed using Framing Camera (FC) mosaics from the Approach (1.3 km/px) and Survey (415 m/px) orbits, including grayscale and color images and digital terrain models derived from stereo images. Future images from the High Altitude Mapping Orbit (140 m/px) and Low Altitude Mapping Orbit (35 m/px) will be used to refine the maps. Support of the Dawn Instrument, Operations, and Science Teams is acknowledged. This work is supported by grants from NASA, and from the German and Italian Space Agencies. JF - American Geophysical Union Fall Meeting AU - Hughson, Kynan AU - Russell, Christopher AU - Williams, David A AU - Buczkowski, Debra AU - Mest, Scott C AU - Scully, Jennifer E C AU - Hiesinger, Harald AU - Platz, Thomas AU - Ruesch, Ottaviano AU - Schenk, Paul AU - Frigeri, Alessandro AU - Jaumann, Ralf AU - Roatsch, Thomas AU - Preusker, Frank AU - Nathues, Andreas AU - Hoffmann, Martin AU - Schaefer, Michael AU - Park, Ryan S AU - Marchi, Simone AU - De Sanctis, Maria Cristina AU - Raymond, Carol A AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53E EP - 2172 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299629?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Preliminary+geological+map+of+the+Ac-H-5+Fejokoo+quadrangle+of+Ceres%3B+an+integrated+mapping+study+using+Dawn+spacecraft+data&rft.au=Hughson%2C+Kynan%3BRussell%2C+Christopher%3BWilliams%2C+David+A%3BBuczkowski%2C+Debra%3BMest%2C+Scott+C%3BScully%2C+Jennifer+E+C%3BHiesinger%2C+Harald%3BPlatz%2C+Thomas%3BRuesch%2C+Ottaviano%3BSchenk%2C+Paul%3BFrigeri%2C+Alessandro%3BJaumann%2C+Ralf%3BRoatsch%2C+Thomas%3BPreusker%2C+Frank%3BNathues%2C+Andreas%3BHoffmann%2C+Martin%3BSchaefer%2C+Michael%3BPark%2C+Ryan+S%3BMarchi%2C+Simone%3BDe+Sanctis%2C+Maria+Cristina%3BRaymond%2C+Carol+A%3BAnonymous&rft.aulast=Hughson&rft.aufirst=Kynan&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Lunar field geological interpretations assisted by LROC, mini-RF and M3; Taurus-Littrow AN - 1849299608; 2016-105717 AB - Integration of Apollo 17 field observations and photographs, sample investigations, Lunar Reconnaissance Orbiter Camera images, Moon Mineralogical Mapper data, and Mini-RF images provides new insights into the geology of the valley of Taurus Littrow. Samples from the North Massif and the Sculptured Hills appear to represent a stratigraphic sequence of ejecta from the Cranium and Serenitatis basin-forming events. Published analyses of these samples provide the approximate ages for those events that appear consistent with this sequence; however, within current 2 sigma error limits, these ages overlap. Strong evidence exists that the Sculptured Hills physiographic unit consists of Imbrium ejecta made up of a layered, Mg-suite pluton. Rim boulders at Camelot Crater constitute wall rocks of the crater rather than ejecta and provide a potential opportunity for investigations of remnant magnetic field orientation at the time of the eruption of late mare basalt lavas in the valley. A second and older light mantle avalanche deposit has been identified, and the origin, potential fluidized flow mechanisms, and geology of the two avalanches from the South Massif have been clarified, including the probability of significant agitation heating during flow. The structure, potential effects, and timing of the Lee-Lincoln thrust fault, and of an ancillary fault revealed by radar, have been defined and raise doubts about the association of the light mantle avalanche with secondary impacts related to the Tycho event. JF - American Geophysical Union Fall Meeting AU - Schmitt, Harrison H AU - Petro, Noah E AU - Robinson, Mark Southwick AU - Wells, Ronald AU - Weiss, Benjamin P AU - Mercer, Cameron Mark AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P43F EP - 08 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299608?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Lunar+field+geological+interpretations+assisted+by+LROC%2C+mini-RF+and+M3%3B+Taurus-Littrow&rft.au=Schmitt%2C+Harrison+H%3BPetro%2C+Noah+E%3BRobinson%2C+Mark+Southwick%3BWells%2C+Ronald%3BWeiss%2C+Benjamin+P%3BMercer%2C+Cameron+Mark%3BAnonymous&rft.aulast=Schmitt&rft.aufirst=Harrison&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - South Pole-Aitken Basin (SPA) units delineated by measures of surface roughness; implications for the history and evolution of the basin as seen by data from the Lunar Reconnaissance Orbiter (LRO) AN - 1849299576; 2016-105823 AB - The interior of SPA contains a range of morphologic units, from smooth plains and mare basalts to rough, ancient, terrains. Recent data, particularly from LRO provide unique measures of SPA surface properties. With each new dataset, the differences between the interior of SPA and its surroundings become more, or in some cases less, clearly defined. Here we explore recent datasets that offer insight into surface roughness at a variety of scales and assess implications for the origins of units across SPA. Identifying the origin of units in SPA is critical for identifying future sampling sites that address the science goal of determining the age of SPA. The unique interior of SPA relative to the rest of the Moon is demonstrated by Mini-RF and LOLA derived products. Mini-RF data shows that the interior of SPA has a slightly higher average Circular Polarization Ratio than nearly any other terrain on the Moon, with the exception of the interior of the Orientale Basin. Cahill et al. [2014, Icarus] note that the average interior CPR value of SPA is similar but slightly higher than the mid-latitude farside highlands, suggesting that both are enhanced in blocks at the surface and near subsurface (to depths <2m). However, SPA is distinct relative to the interior of Orientale in the m-chi deconvolution, suggesting that the interior has a regolith with scatterers smaller than the wavelength of Mini-RF (12.6 cm). LOLA-derived roughness shows that the interior of SPA is smoother than the surrounding highlands [Rosenburg et al.,2011, JGR; Kreslavsky et al., 2013, Icarus]. LOLA roughness measures show roughness variations within the basin tied to volcanism. However the expanse of smooth areas is broader than the previously mapped volcanic units, suggesting that ancient volcanism may be contributing to interior smoothness. The distinction between datasets is likely due to differences in spatial resolution and that Mini-RF data probes the near subsurface. These measurements of roughness offer insight into the origins of units across SPA, including the possible presence of extensive ancient volcanic deposits. Regional variations in LOLA-derived roughness, Mini-RF CPR, and other high resolution measures of surface roughness within SPA will be used to infer, delineate morphologic terrains, and distinguish volcanic and impact-generated units. JF - American Geophysical Union Fall Meeting AU - Petro, Noah E AU - Jolliff, Bradley L AU - Cahill, Joshua T S AU - Whelley, Patrick L AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53B EP - 2122 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299576?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=South+Pole-Aitken+Basin+%28SPA%29+units+delineated+by+measures+of+surface+roughness%3B+implications+for+the+history+and+evolution+of+the+basin+as+seen+by+data+from+the+Lunar+Reconnaissance+Orbiter+%28LRO%29&rft.au=Petro%2C+Noah+E%3BJolliff%2C+Bradley+L%3BCahill%2C+Joshua+T+S%3BWhelley%2C+Patrick+L%3BAnonymous&rft.aulast=Petro&rft.aufirst=Noah&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - How LEND sees the water on the Moon; the recent findings AN - 1849299559; 2016-105777 AB - The Lunar Exploration Neutron Detector (LEND) is operating on orbit around the Moon on-board the Lunar Reconnaissance Orbiter (LRO) spacecraft about six years. LEND has been designed and manufactured to investigate presence and determine average amount of hydrogen in upper ( approximately 1 m depth) subsurface layer of the Lunar regolith with spatial resolution approximately 10 km from 50 km orbit and to check the hypothesis what the permanently shadowed regions (PSRs) at circumpolar regions are the main reservoirs of a large deposition of water ice on the Moon. One of most interesting and surprising LEND observations that not all large PSRs regions contain a detectable amount of hydrogen but there are neutron suppression regions (NSRs) with statistically significant suppression of neutron flux. The NSRs partially overlap or include PSRs in Cabeus, Shoemaker, Haworth (on South) and Rozhdestvensky U (on North) but significant part of their area spread out at sunlit territory. This means that hydrogen may be preserved for a long time or even accumulated at approximately 1 m layer of regolith illuminated by Sun. The majority of PSRs do not show statistically significant suppressions of neutron flux in comparison with neighbor sunlit areas. This implies a hypothesis what a permanent shadow is not only necessary condition for the hydrogen hydrogen accumulation and preservation in the lunar subsurface. It is supported by analysis of poleward-facing and equatorial-facing slopes of craters. This analysis shows a statistically significant increasing of hydrogen concentration at poleward-facing slopes in comparison to equatorial-facing slopes. Moreover, it was found evidence that hydrogen-bearing volatiles are being diurnally cycled at the top meter of the Moon's high-latitude surfaces, above + or -75 degrees . JF - American Geophysical Union Fall Meeting AU - Sanin, Anton B AU - Mitrofanov, Igor G AU - Litvak, Maxim L AU - Bakhtin, Boris N AU - Bodnarik, Julia AU - Boynton, William V AU - Chin, Gordon AU - Evans, Larry G AU - Golovin, Dmitry AU - Harshman, Karl AU - Livengood, Timothy A AU - Malakhov, Alexey V AU - McClanahan, Timothy P AU - Mokrousov, Maxim AU - Sagdeev, Roald AU - Starr, Richard D AU - Vostrukhin, Andrey AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P51D EP - 07 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299559?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=How+LEND+sees+the+water+on+the+Moon%3B+the+recent+findings&rft.au=Sanin%2C+Anton+B%3BMitrofanov%2C+Igor+G%3BLitvak%2C+Maxim+L%3BBakhtin%2C+Boris+N%3BBodnarik%2C+Julia%3BBoynton%2C+William+V%3BChin%2C+Gordon%3BEvans%2C+Larry+G%3BGolovin%2C+Dmitry%3BHarshman%2C+Karl%3BLivengood%2C+Timothy+A%3BMalakhov%2C+Alexey+V%3BMcClanahan%2C+Timothy+P%3BMokrousov%2C+Maxim%3BSagdeev%2C+Roald%3BStarr%2C+Richard+D%3BVostrukhin%2C+Andrey%3BAnonymous&rft.aulast=Sanin&rft.aufirst=Anton&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Lakes on early Mars; a space-for-time substitution experiment AN - 1849299549; 2016-105643 AB - Lakes were abundant and active on early Mars for 100s millions of years. As global climate change prevented liquid water from remaining stable at the surface, they left behind key evidence of their past existence and duration in the landscape morphology, mineralogy, composition, and topography. As significant markers of environmental change, they have become critical exploration targets for our understanding of Mars past habitability potential, and the preservation potential of their sediments make them high-priority candidate landing sites for the upcoming NASA and ESA rover missions that will search for evidence of biosignatures on early Mars. Identifying and caching the most valuable samples with these missions will require to both recognize these signatures, the geological and environmental processes that may have modified them through time, the spatiotemporal constraints these processes could have imposed on a biogeological record, and their significance for biosignatures and their preservation potential. To help us understand where, what, and how to search on Mars, the Chilean Atacama desert, Altiplano, and the High Andes have provided robust analog study sites over the past 20 years. Exposed to the strongest solar irradiance measured so far on our planet, from sea level up to 6,000 m elevation, and from glacial regions to some of the most arid conditions on Earth, these unique sites allow us to perform a space-for-time substitution experiments that shows the likely evolution of martian lake habitats over time from the early Noachian to the Hesperian. The observed changes provide critical clues about plausible scenarios for the evolution of habitability and life potential. They also give us pointers on how increased environmental extremes linked to a thinning unstable atmosphere, increasing UV, desiccation, and geological and climate changes, may have impacted biodiversity at local and global scale. JF - American Geophysical Union Fall Meeting AU - Cabrol, Nathalie A AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P23C EP - 01 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299549?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Lakes+on+early+Mars%3B+a+space-for-time+substitution+experiment&rft.au=Cabrol%2C+Nathalie+A%3BAnonymous&rft.aulast=Cabrol&rft.aufirst=Nathalie&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Geomorphological evidence for pervasive ground ice on Ceres from dawn observations of craters and flows. AN - 1849299542; 2016-105884 AB - Five decades of observations of Ceres' albedo, surface composition, shape and density suggest that Ceres is comprised of both silicates and tens of percent of ice. Historical suggestions of surficial hydrated silicates and evidence for water emission, coupled with its bulk density of approximately 2100 kg/m (super 3) and Dawn observations of young craters containing high albedo spots support this conclusion. We report geomorphological evidence from survey data demonstrating that evaporative and fluid-flow processes within silicate-ice mixtures are prevalent on Ceres, and indicate that its surface materials contain significant water ice. Here we highlight three classes of features that possess strong evidence for ground ice. First, ubiquitous scalloped and "breached" craters are characterized by mass wasting and by the recession of crater walls in asymmetric patterns; these appear analogous to scalloped terrain on Mars and protalus lobes formed by mass wasting in terrestrial glaciated regions. The degradation of crater walls appears to be responsible for the nearly complete removal of some craters, particularly at low latitudes. Second, several high latitude, high elevation craters feature lobed flows that emanate from cirque-shaped head walls and bear strikingly similar morphology to terrestrial rock glaciers. These similarities include lobate toes and indications of furrows and ridges consistent with ice-cored or ice-cemented material. Other lobed flows persist at the base of crater walls and mass wasting features. Many flow features evidently terminate at ramparts. Third, there are frequent irregular domes, peaks and mounds within crater floors that depart from traditional crater central peaks or peak complexes. In some cases the irregular domes show evidence for high albedo or activity, and thus given other evidence for ice, these could be due to local melt and extrusion via hydrologic gradients, forming domes similar to pingos. The global distribution of these classes of features, combined with latitudinal variation in their abundance and/or appearance, suggests that ground ice is a key controller of geology on Ceres, and that ice content within the surface and subsurface is spatially varied and/or activated by energetic events. Dawn high altitude mapping orbit (HAMO) data will provide better views. JF - American Geophysical Union Fall Meeting AU - Schmidt, Britney E AU - Chilton, Heather AU - Hughson, Kynan AU - Scully, Jennifer E C AU - Russell, Christopher T AU - Sizemore, Hanna G AU - Nathues, Andreas AU - Platz, Thomas AU - Bland, Michael T AU - Schenk, Paul AU - Hiesinger, Harald AU - Jaumann, Ralf AU - Byrne, Shane AU - Schorghofer, Norbert AU - Ammannito, Eleonora AU - Marchi, Simone AU - O'Brien, David P AU - Sykes, Mark V AU - Le Corre, Lucille AU - Capria, Maria Teresa AU - Reddy, Vishnu AU - Raymond, Carol A AU - Mest, Scott C AU - Feldman, William C AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53E EP - 2187 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299542?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Geomorphological+evidence+for+pervasive+ground+ice+on+Ceres+from+dawn+observations+of+craters+and+flows.&rft.au=Schmidt%2C+Britney+E%3BChilton%2C+Heather%3BHughson%2C+Kynan%3BScully%2C+Jennifer+E+C%3BRussell%2C+Christopher+T%3BSizemore%2C+Hanna+G%3BNathues%2C+Andreas%3BPlatz%2C+Thomas%3BBland%2C+Michael+T%3BSchenk%2C+Paul%3BHiesinger%2C+Harald%3BJaumann%2C+Ralf%3BByrne%2C+Shane%3BSchorghofer%2C+Norbert%3BAmmannito%2C+Eleonora%3BMarchi%2C+Simone%3BO%27Brien%2C+David+P%3BSykes%2C+Mark+V%3BLe+Corre%2C+Lucille%3BCapria%2C+Maria+Teresa%3BReddy%2C+Vishnu%3BRaymond%2C+Carol+A%3BMest%2C+Scott+C%3BFeldman%2C+William+C%3BAnonymous&rft.aulast=Schmidt&rft.aufirst=Britney&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - RIS4E at Kilauea's December 1974 (D1974) flow; establishing the D1974 flow as an ideal Mars analog AN - 1849299529; 2016-105692 AB - The Kilauea December 1974 (D1974) flow was emplaced from a series of en echelon fissures southwest of Kilauea Caldera. In 6.5 hours the D1974 flow was emplaced over the Keanakako'i ash member as a rapidly emplaced sheet flow. This flow has previously been used as a location for radar roughness studies due to the exposure of abrupt changes in surface texture ranging between smooth pahoehoe, rubbly and slabby lavas and 'a'a lava. When viewed in visible remote sensing images, this flow field displays dark and light toned areas that reveal sinuous patterns, streamlined islands, and rafted lava slabs and plates. The flow is an ideal location to study lava textures, textural relationships and the formation of non-traditional channels and associated features as analogs to characterizing the formation of channel networks on the flanks of martian volcanoes or rilles in the lunar mare.The D1974 flow is also positioned downwind from Kilauea Caldera along the volcano's SW rift zone. D1974 lavas flowed across older, active fumaroles and have since been exposed to acid fog, rain, and other plume related processes. In 2008 the Kilauea Caldera experienced an explosive event along the wall of Halema'uma'u and has since displayed an active lava lake, thereby elevating the flow's exposure to processes related to volcanic gasses. Alteration products have therefore formed both in and around the older fumaroles (at the solfatara site) as well as being deposited as thin coatings over the entire length of the flow. These products are reminiscent of sulfate-rich materials that have been identified on Mars by several groups. Though these martian deposits have been identified and analyzed, their formation mechanism remains somewhat ambiguous. The D1974 flow represents an ideal analog with which to test various formation scenarios using a variety of field portable technologies, designed to analyze the alteration products in situ (thereby preserving their initial structures and textures). JF - American Geophysical Union Fall Meeting AU - Young, Kelsey E AU - Bleacher, Jacob E AU - Rogers, Deanne AU - McAdam, Amy AU - Garry, William Brent AU - Scheidt, Stephen P AU - Carter, Lynn M AU - Glotch, Timothy D AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P31A EP - 2049 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299529?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=RIS4E+at+Kilauea%27s+December+1974+%28D1974%29+flow%3B+establishing+the+D1974+flow+as+an+ideal+Mars+analog&rft.au=Young%2C+Kelsey+E%3BBleacher%2C+Jacob+E%3BRogers%2C+Deanne%3BMcAdam%2C+Amy%3BGarry%2C+William+Brent%3BScheidt%2C+Stephen+P%3BCarter%2C+Lynn+M%3BGlotch%2C+Timothy+D%3BAnonymous&rft.aulast=Young&rft.aufirst=Kelsey&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - MSL SAM-like analyses of hawaiian altered basaltic materials: implications for analyses by the Mars science laboratory AN - 1849299518; 2016-105678 AB - Samples of basaltic materials were collected during several traverses of the Kau Desert on the leeward side of the Kilauea Volcano, Hawaii, conducted by the Remote, In Situ, and Synchrotron Studies for Science and Exploration (RIS4E) team, a node of the Solar System Exploration and Research Virtual Institute (SSERVI) program. Some of these samples had been exposed to circumneutral to slightly acidic alteration conditions from exposure to fog/rain, and acidic fog/rain, while others had been exposed to more acidic conditions due to proximity to fumaroles. The samples consisted of basalts with coatings, sands and soils, and ash, and were collected using organically clean protocols to enable investigation of organic chemistry and organic-mineral associations, in addition to mineralogy. The Mars Science Laboratory (MSL) rover has analyzed basaltic materials inferred to have been altered under conditions ranging from circumneutral to acidic, but several aspects of the Sample Analysis at Mars (SAM) instrument suite results are still being investigated and analyses of relevant terrestrial analogs can play an important role in interpretation of the data. For example, all materials analyzed to date have a significant amorphous component. Comparisons of the mineralogy obtained with the MSL CheMin instrument and volatiles evolved during SAM analyses indicate that, by mass balance, some portion of the volatiles, such as SO2 and H2O, are likely associated with this component. Many of the RIS4E samples also have a significant amorphous component, and field x-ray diffraction (XRD) and x-ray fluorescence (XRF) data indicate differences in the chemistry of this material in samples exposed to different alteration conditions. Preliminary SAM-like analyses indicate that the amorphous materials in some of these samples evolve volatiles such as H2O and SO2 during heating. Here we will discuss these results, and others, obtained through SAM-like analyses of selected samples. JF - American Geophysical Union Fall Meeting AU - McAdam, Amy AU - Eigenbrode, Jennifer L AU - Young, Kelsey E AU - Bleacher, Jacob E AU - Knudson, Christine A AU - Rogers, Deanne AU - Glotch, Timothy D AU - Sutter, Brad AU - Mahaffy, Paul R AU - Navarro-Gonzalez, Rafael AU - Downs, Robert T AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P31A EP - 2034 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299518?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=MSL+SAM-like+analyses+of+hawaiian+altered+basaltic+materials%3A+implications+for+analyses+by+the+Mars+science+laboratory&rft.au=McAdam%2C+Amy%3BEigenbrode%2C+Jennifer+L%3BYoung%2C+Kelsey+E%3BBleacher%2C+Jacob+E%3BKnudson%2C+Christine+A%3BRogers%2C+Deanne%3BGlotch%2C+Timothy+D%3BSutter%2C+Brad%3BMahaffy%2C+Paul+R%3BNavarro-Gonzalez%2C+Rafael%3BDowns%2C+Robert+T%3BAnonymous&rft.aulast=McAdam&rft.aufirst=Amy&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - The solar wind plasma environment along the floor of the Moon's Shackleton Crater; an affect on floor brightening? AN - 1849299463; 2016-105821 AB - Recent reports [Zuber et al, 2012; Lucey et al., 2014] indicate that the lunar permanently-shadowed south polar crater, Shackleton, has an anomalously bright floor as observed in 1064 nm LIDAR reflections. It has been suggested that unusual space weathering or possibly adsorbed water may be the cause of that brightening. In this paper, we examine the solar wind plasma inflow into the crater using LRO LOLA topography and plasma expansion formalism, and show that plasma flux to the surface is far lower than in topside regions directly exposed to the solar wind flow. The lack of plasma along the crater floor is expected to reduce space weathering of the regolith. Ironically, the lack of plasma also reduces sputtering allowing any adsorbed water/frost to persist for longer times relative to topside regions. We will thus consider how the reduced plasma inflow affects water and other volatiles that reside on the crater floor. JF - American Geophysical Union Fall Meeting AU - Farrell, William M AU - Holmes, Janelle AU - Zimmerman, Michael I AU - Hurley, Dana AU - Misra, Prabhakar AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53B EP - 2119 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299463?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+solar+wind+plasma+environment+along+the+floor+of+the+Moon%27s+Shackleton+Crater%3B+an+affect+on+floor+brightening%3F&rft.au=Farrell%2C+William+M%3BHolmes%2C+Janelle%3BZimmerman%2C+Michael+I%3BHurley%2C+Dana%3BMisra%2C+Prabhakar%3BAnonymous&rft.aulast=Farrell&rft.aufirst=William&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Sedimentary structures and stratal geometries at the foothills of Mount Sharp; their role in paleoenvironmental interpretation AN - 1849299441; 2016-105892 AB - The Mars Science Laboratory Curiosity rover has been exploring sedimentary rocks at the foothills of Mount Sharp since August 2014. Robust interpretation of the paleoenvironmental contexts requires detailed facies analysis of these rocks including analysis and interpretation of sedimentary structures and sediment body geometries. Here, we describe some of the detailed sedimentary structures and sedimentary geometries observed by Curiosity between the Pahrump Hills field site and its current location at Marias Pass. The Pahrump Hills sedimentary section comprises a succession dominated by finely laminated mudstones of the Murray formation that are interpreted to have been deposited in an ancient lake within Gale crater. Toward the top of the Pahrump Hills succession, we observe the appearance of coarser-grained sandstones that are interstratified within the lacustrine mudstones. These sandstones that include Whale Rock and Newspaper Rock show lenticular geometries, and are pervasively cross-stratified. These features indicate that currents eroded shallow scours in the lake beds that were then infilled by deposition from migrating subaqueous dunes. The paleoenvironmental setting may represent either a gullied delta front setting or one in which lake level fall caused fluvial erosion and infilling of the shallow scours. Since leaving Pahrump Hills, Curiosity has imaged extensive exposures of strata that are partly correlative with and stratigraphically overlie the uppermost part of the Pahrump section. Isolated cross-bedded sandstones and possible interstratified conglomerates beds occur within Murray formation mudstones. Capping sandstones with a likely variety of environmental contexts overlie mudstones. Where imaged in detail, sedimentary structures, such as trough-cross bedding and possible eolian pinstriping, provide constraints on plausible sedimentary processes and bounds on depositional setting. JF - American Geophysical Union Fall Meeting AU - Gupta, Sanjeev AU - Rubin, David M AU - Sumner, Dawn Y AU - Grotzinger, John P AU - Lewis, Kevin W AU - Stack, Kathryn AU - Kah, Linda C AU - Banham, Steven AU - Edgett, Kenneth S AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53F EP - 02 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299441?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Sedimentary+structures+and+stratal+geometries+at+the+foothills+of+Mount+Sharp%3B+their+role+in+paleoenvironmental+interpretation&rft.au=Gupta%2C+Sanjeev%3BRubin%2C+David+M%3BSumner%2C+Dawn+Y%3BGrotzinger%2C+John+P%3BLewis%2C+Kevin+W%3BStack%2C+Kathryn%3BKah%2C+Linda+C%3BBanham%2C+Steven%3BEdgett%2C+Kenneth+S%3BAnonymous&rft.aulast=Gupta&rft.aufirst=Sanjeev&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Hydrogen bearing material in the lunar exosphere AN - 1849299439; 2016-105715 AB - We report on observations of water and its daughters in the lunar exosphere. Data from LADEE NMS, LADEE UVS, and LRO LAMP indicating the presence of H, H (sub 2) , OH, and H (sub 2) O are presented in terms of their relationship to external drivers. These observations point to the roles of solar wind and micrometeoroids in the source and release of hydrogen-bearing atoms and molecules in the exosphere. In particular, the implantation of H via solar wind is found to be the largest contributor to H (sub 2) in the moon's exosphere. However, the spatial distribution is more consistent with a release mechanism centered on the morning hemisphere. Thus the data are consistent with H (sub 2) created through a 2-step process involving the implantation of solar wind and subsequent release by micrometeoroids. This accounts for >12% of the solar wind H budget, leaving < 50% of the solar wind proton budget unobserved. LADEE data are consistent with water mainly being released by micrometeoroids. We present an overall picture of the present-day water cycle occurring on the Moon. JF - American Geophysical Union Fall Meeting AU - Hurley, Dana AU - Benna, Mehdi AU - Colaprete, Anthony AU - Retherford, Kurt D AU - Cook, Jason Campbell AU - Elphic, Richard C AU - Farrell, William M AU - Killen, Rosemary M AU - Sarantos, Menelaos AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P43F EP - 06 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299439?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Hydrogen+bearing+material+in+the+lunar+exosphere&rft.au=Hurley%2C+Dana%3BBenna%2C+Mehdi%3BColaprete%2C+Anthony%3BRetherford%2C+Kurt+D%3BCook%2C+Jason+Campbell%3BElphic%2C+Richard+C%3BFarrell%2C+William+M%3BKillen%2C+Rosemary+M%3BSarantos%2C+Menelaos%3BAnonymous&rft.aulast=Hurley&rft.aufirst=Dana&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - ChemCam passive sky spectroscopy at Gale crater; diurnal and seasonal cycles of O (sub 2) , H (sub 2) O, and aerosols AN - 1849299430; 2016-105627 AB - The Mars Science Laboratory's (MSL) ChemCam spectrometer has been measuring atmospheric aerosol properties and gas abundances for more than one Martian year, doing so by operating in passive mode and observing scattered sky light at two different elevation angles. We perform these observations at 1-2 week intervals, occasionally acquiring multiple observations on a given day to assess the diurnal cycle. Six parameters are retrieved from each observation: dust aerosol particle effective radius, ice aerosol particle effective radius, the fraction of opacity contributed by ice rather than dust aerosol, the ratio of aerosol extinction scale height to gas pressure scale height (as a parameterization of the aerosol vertical profile), the O (sub 2) volume mixing ratio, and the water vapor column abundance (in precipitable microns). The retrieval works by first constructing a ratio of the spectra from the two elevation angles and then fitting a discrete ordinates multiple scattering radiative transfer model. Total column opacity, CO (sub 2) mixing ratio, and atmospheric pressure are exogenous inputs. They are sourced from Mastcam, SAM QMS, and REMS measurements, respectively. An important feature of our procedure, which we have verified by numerical experimentation, is that the retrieved gas abundances have negligible sensitivity to the accuracy of the aerosol parameter solutions or to exogenous inputs or to a wide range of model assumptions. We will present a survey of the results from the extensive ChemCam passive sky data set, including comparisons to related SAM and REMS in-situ atmospheric sampling and to Mastcam and Navcam sky observation campaigns. We will show that O (sub 2) has temporal variation unexplained by existing photochemical models and has vertical variations within the bottom 10 km of the atmosphere in some seasons. We will also show the water vapor is well mixed within the bottom 10 km in some seasons but not in others, and we will address a variety of aerosol phenomena. JF - American Geophysical Union Fall Meeting AU - McConnochie, Timothy H AU - Smith, Michael D AU - Bender, Steven C AU - Wolff, Michael J AU - Johnson, Jeffrey Roy AU - Lemmon, Mark T AU - Wiens, Roger C AU - Maurice, Sylvestre AU - Gasnault, Olivier AU - Blaney, Diana L AU - DeFlores, Lauren P AU - Harri, Ari-Matti AU - Kemppinen, Osku AU - Genzer, Maria AU - Moores, John AU - Wong, Michael H AU - Trainer, Melissa G AU - Martin-Torres, Javier AU - Zorzano, Maria-Paz AU - Franz, Heather B AU - Barraclough, Bruce Lee AU - Atreya, Sushil K AU - Mahaffy, Paul R AU - Lefevre, Franck AU - Lasue, Jeremie AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P22A EP - 08 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299430?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=ChemCam+passive+sky+spectroscopy+at+Gale+crater%3B+diurnal+and+seasonal+cycles+of+O+%28sub+2%29+%2C+H+%28sub+2%29+O%2C+and+aerosols&rft.au=McConnochie%2C+Timothy+H%3BSmith%2C+Michael+D%3BBender%2C+Steven+C%3BWolff%2C+Michael+J%3BJohnson%2C+Jeffrey+Roy%3BLemmon%2C+Mark+T%3BWiens%2C+Roger+C%3BMaurice%2C+Sylvestre%3BGasnault%2C+Olivier%3BBlaney%2C+Diana+L%3BDeFlores%2C+Lauren+P%3BHarri%2C+Ari-Matti%3BKemppinen%2C+Osku%3BGenzer%2C+Maria%3BMoores%2C+John%3BWong%2C+Michael+H%3BTrainer%2C+Melissa+G%3BMartin-Torres%2C+Javier%3BZorzano%2C+Maria-Paz%3BFranz%2C+Heather+B%3BBarraclough%2C+Bruce+Lee%3BAtreya%2C+Sushil+K%3BMahaffy%2C+Paul+R%3BLefevre%2C+Franck%3BLasue%2C+Jeremie%3BAnonymous&rft.aulast=McConnochie&rft.aufirst=Timothy&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - The collisional history of dwarf planet Ceres revealed by Dawn AN - 1849299389; 2016-105882 AB - Impact craters are a ubiquitous feature of solid surfaces of celestial objects. Craters are oftentimes used to constrain the past evolution of their host objects, as well as to assess their crustal structures. The Dawn spacecraft, currently in orbit around the dwarf planet Ceres, has revealed a surface peppered with impact craters. Two important facts emerge from their global spatial distribution: i) significant longitudinal and latitudinal asymmetries in the crater areal density, ii) and the lack of well-preserved craters larger than 400 km in imaging data. Interestingly, most of the low crater density terrains are found in the vicinity of the three largest, well-preserved impact craters ranging from approximately 160 to approximately 290 km in diameter. These low crater areal density terrains expand over a greater distance than observed for large craters on rocky bodies and icy satellites, which typically are confined within one crater radius from the rim. To assess the collisional history of Ceres we developed a Monte Carlo model that tracks the timing, size and number of collisions throughout the history of the solar system. The model shows that Ceres' collisional evolution should have resulted typically in a factor of 10 more craters than observed, with some approximately 10 craters larger than 400 km expected to have formed over the last 4.5 Gyr ago. While small craters may have reached an equilibrium level, which does not allow then to further increase in number, the lack of evident large craters is a puzzle. A possibility is that the scars of large craters have been obliterated by topography relaxation due to an ice-rich crust. Here we will present an overview of the Ceres' crater spatial distribution and compare it to other siblings (such as the asteroid Vesta), and collisional evolution models. We will also discuss how these results pose important constraints on the internal structure of the dwarf planet in conjunction with surface composition and gravity data acquired by Dawn. JF - American Geophysical Union Fall Meeting AU - Marchi, Simone AU - Williams, David A AU - Mest, Scott C AU - Schenk, Paul AU - O'Brien, David P AU - De Sanctis, Maria Christina AU - Ermakov, Anton AU - Castillo, Julie C AU - Jaumann, Ralf AU - Neesemann, Adrian AU - Hiesinger, Harald AU - Park, Ryan S AU - Kneissl, Thomas AU - Schmedemann, Nico AU - Raymond, Carol A AU - Russell, Christopher T AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53E EP - 2185 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299389?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+collisional+history+of+dwarf+planet+Ceres+revealed+by+Dawn&rft.au=Marchi%2C+Simone%3BWilliams%2C+David+A%3BMest%2C+Scott+C%3BSchenk%2C+Paul%3BO%27Brien%2C+David+P%3BDe+Sanctis%2C+Maria+Christina%3BErmakov%2C+Anton%3BCastillo%2C+Julie+C%3BJaumann%2C+Ralf%3BNeesemann%2C+Adrian%3BHiesinger%2C+Harald%3BPark%2C+Ryan+S%3BKneissl%2C+Thomas%3BSchmedemann%2C+Nico%3BRaymond%2C+Carol+A%3BRussell%2C+Christopher+T%3BAnonymous&rft.aulast=Marchi&rft.aufirst=Simone&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - The dependence of Mars atmospheric loss on crustal field location; MAVEN observation and comparison with a MHD model AN - 1849299370; 2016-105611 AB - Our recent time-dependent MHD study suggests that the Mars crustal magnetic field acts as the primary internal driving force of variability in total planetary ion escape. In our global numerical simulation, we assume quiet solar wind conditions and consider the continuous local time change of crustal anomalies due to planetary rotation. Significant fluctuations of approximately 20% and approximately 50% are obtained during the entire rotation period for O+ and for O2+ and CO2+, respectively. From the MHD perspective, the control is exerted mainly through two processes. First, the crustal magnetic pressure over the subsolar regime controls solar wind penetration and mass loading and therefore the escaping planetary ion source. There is a strong negative correlation between the dayside magnetic pressure and ion loss with a significant time lag. Second, the crustal magnetic pressure near the terminator region controls the cross section area between the induced magnetospheric boundary and 100 km altitude at the terminator. The change in day-night connection regulates the extent to which planetary ions created in the dayside can be ultimately carried away by the solar wind and escape Mars. There is a strong positive correlation between the terminator crustal pressure and ion loss, with a shorter time lag. As the planet rotates, the dayside process and the terminator process work together to control the total amounts of escaping planetary ions. In the present work, we aim to test this theory by analyzing planetary ion escape observed by the SupraThermal and Thermal Ion Composition (STATIC) instrument onboard the Mars Atmosphere and Volatile EvolutioN (MAVEN) mission. The upstream solar wind plasma observation by the Solar Wind Ion Analyzer (SWIA) and IMF observation by Magnetometer (MAG) are used to provide an estimate of the external driving force of the Mars-solar wind interaction. We will examine the relationship between the MAVEN observed escaping planetary ion flux and Mars orientation to the Sun, and compare our finding with what we learn from the MHD model. JF - American Geophysical Union Fall Meeting AU - Fang, Xiaohua AU - Ma, Yingjuan AU - Dong, Yaxue AU - McFadden, James P AU - Halekas, Jasper S AU - Connerney, John E P AU - Brain, David A AU - Lillis, Robert J AU - Jakosky, Bruce M AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P21A EP - 2087 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299370?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+dependence+of+Mars+atmospheric+loss+on+crustal+field+location%3B+MAVEN+observation+and+comparison+with+a+MHD+model&rft.au=Fang%2C+Xiaohua%3BMa%2C+Yingjuan%3BDong%2C+Yaxue%3BMcFadden%2C+James+P%3BHalekas%2C+Jasper+S%3BConnerney%2C+John+E+P%3BBrain%2C+David+A%3BLillis%2C+Robert+J%3BJakosky%2C+Bruce+M%3BAnonymous&rft.aulast=Fang&rft.aufirst=Xiaohua&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Color and composition of Pluto and its moons from the New Horizons Mission AN - 1849299350; 2016-105908 AB - NASA's New Horizons mission has goals of providing maps of the color and composition of Pluto and its largest moon Charon. When the small moons of Pluto were discovered, the New Horizons science team added investigations on the color and composition of Nix and Hydra and also color of Styx and Kerberos and near-infrared spectra of Kerberos. Color observations taken by Ralph/MVIC, the Multispectral Visible Imaging Camera have revealed diverse terrain units across Pluto. By constructing an enhanced color composite image of Pluto from the Blue, Red and NIR filter images of Pluto, we can see that the informally named, Tombaugh Regio (the large heart-shaped region on Pluto), is clearly two different colors with a clear demarcation down the center of Tombaugh Regio. From infrared spectroscopic data taken by Ralph/LEISA, Linear Etalon Imaging Spectral Array, early analysis has shown that in the less blue region of Tombaugh Regio there is a concentration of CO ice. This paper will present selected highlights of results from the color and composition investigations of the New Horizons mission. JF - American Geophysical Union Fall Meeting AU - Olkin, Catherine AU - Reuter, Dennis AU - Stern, S Alan AU - Howett, Carly AU - Parker, Alex Harrison AU - Ennico Smith, Katherine AU - Singer, Kelsi N AU - Grundy, William M AU - Weaver, Harold A, Jr AU - Young, Leslie Ann AU - Binzel, Richard P AU - Buie, Marc W AU - Cook, Jason Campbell AU - Cruikshank, Dale P AU - Dalle Ore, Cristina AU - Earle, Alissa M AU - Jennings, Donald E AU - Linscott, Ivan AU - Lunsford, Allen AU - Parker, Joel W AU - Protopapa, Silvia AU - Spencer, John R AU - Tsang, Constantine AU - Verbiscer, Anne AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P54A EP - 01 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299350?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Color+and+composition+of+Pluto+and+its+moons+from+the+New+Horizons+Mission&rft.au=Olkin%2C+Catherine%3BReuter%2C+Dennis%3BStern%2C+S+Alan%3BHowett%2C+Carly%3BParker%2C+Alex+Harrison%3BEnnico+Smith%2C+Katherine%3BSinger%2C+Kelsi+N%3BGrundy%2C+William+M%3BWeaver%2C+Harold+A%2C+Jr%3BYoung%2C+Leslie+Ann%3BBinzel%2C+Richard+P%3BBuie%2C+Marc+W%3BCook%2C+Jason+Campbell%3BCruikshank%2C+Dale+P%3BDalle+Ore%2C+Cristina%3BEarle%2C+Alissa+M%3BJennings%2C+Donald+E%3BLinscott%2C+Ivan%3BLunsford%2C+Allen%3BParker%2C+Joel+W%3BProtopapa%2C+Silvia%3BSpencer%2C+John+R%3BTsang%2C+Constantine%3BVerbiscer%2C+Anne%3BAnonymous&rft.aulast=Olkin&rft.aufirst=Catherine&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Geologic investigations spurred by analog testing at the 7504 cone-SP Mountain area of the San Francisco volcanic field AN - 1849299347; 2016-105681 AB - The SP Mountain area of the San Francisco Volcanic Field, AZ, has been used as an analog mission development site for NASA since 1998. This area consists of basaltic cinder cones, lava flows and maar craters that have been active since mid-Miocene, with the youngest events occurring within the last 10,000 years. The area has been used because its geologic and topographic resemblance to lunar and Martian terrains provides an ideal venue for testing hardware and science operations practices that might be employed on planetary surfaces, as well as training astronauts in field geology. Analog operations have often led to insights that spurred new scientific investigations. Most recently, an investigation of the 7504 cone was initiated due to perceptions that Apollo-style traverse plans executed during the Desert RATS 2010 mission had characterized the area incorrectly, leading to concerns that the Apollo traverse planning process was scientifically flawed. This investigation revealed a complex history of fissure eruptions of lava and cinders, cinder cone development, a cone-fill-and-spill episode, extensive rheomorphic lava flow initiation and emplacement, and cone sector collapse that led to a final lava flow. This history was not discernible on pre-RATS mission photogeology, although independent analysis of RATS 2010 data and samples developed a "75% complete solution" that validated the pre-RATS mission planning and Apollo traverse planning and execution. The study also pointed out that the development of scientific knowledge with time in a given field area is not linear, but may follow a functional form that rises steeply in the early period of an investigation but flattens out in the later period, asymptotically approaching a theoretical "complete knowledge" point that probably cannot be achieved. This implies that future human missions must be prepared to shift geographic areas of investigation regularly if significant science returns are to be forthcoming. JF - American Geophysical Union Fall Meeting AU - Bleacher, Jacob E AU - Eppler, Dean B AU - Needham, Debra H AU - Evans, Cindy A AU - Skinner, James A AU - Feng, Wanda AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P31A EP - 2037 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299347?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Geologic+investigations+spurred+by+analog+testing+at+the+7504+cone-SP+Mountain+area+of+the+San+Francisco+volcanic+field&rft.au=Bleacher%2C+Jacob+E%3BEppler%2C+Dean+B%3BNeedham%2C+Debra+H%3BEvans%2C+Cindy+A%3BSkinner%2C+James+A%3BFeng%2C+Wanda%3BAnonymous&rft.aulast=Bleacher&rft.aufirst=Jacob&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Observations of Mercury's surface-bounded exosphere from orbit; results from the Mercury atmospheric and surface composition spectrometer aboard the MESSENGER spacecraft AN - 1849299327; 2016-105796 AB - The Mercury Atmospheric and Surface Composition Spectrometer (MASCS), on the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft, conducted orbital observations of Mercury's dayside and nightside exosphere from 29 March 2011 to the end of the mission on 30 April 2015. Over slightly more than four Earth-years, MASCS measured emission profiles versus altitude for calcium (Ca), sodium (Na), and magnesium (Mg) at a daily cadence. These species exhibit different spatial distributions, suggesting distinct source processes. MASCS observed seasonal variations in all three species that are remarkably repeatable from one Mercury year to the next, and did so consistently during the entire 17-Mercury-year duration of the orbital phase of the mission. Whereas MASCS has characterized the seasonal variation, it has provided, at best, only weak evidence for the episodic behavior observed in ground-based studies of Na. Joint analyses of MASCS observations and surface precipitation patterns for energetic particles inferred from observations by the Energetic Particle Spectrometer (EPS) and the Fast Imaging Plasma Spectrometer (FIPS) on MESSENGER have not yielded clear correlations. This lack of correlation may be due in part to the MASCS observational geometries. MASCS has conducted a number of searches for other, weakly emitting species. Hydrogen data from the orbital phase are consistent with profiles observed during MESSENGER's flybys of Mercury. Oxygen detections have proven elusive, and the previously reported observation with a brightness of 4 R may only be an upper limit. Ongoing analysis of weak species data suggests that additional species are present. JF - American Geophysical Union Fall Meeting AU - McClintock, William E AU - Burger, Matthew H AU - Cassidy, Timothy A AU - Killen, Rosemary M AU - Merkel, Aimee W AU - Sarantos, Menelaos AU - Solomon, Sean C AU - Vervack, Ronald J, Jr AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53A EP - 2092 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299327?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Observations+of+Mercury%27s+surface-bounded+exosphere+from+orbit%3B+results+from+the+Mercury+atmospheric+and+surface+composition+spectrometer+aboard+the+MESSENGER+spacecraft&rft.au=McClintock%2C+William+E%3BBurger%2C+Matthew+H%3BCassidy%2C+Timothy+A%3BKillen%2C+Rosemary+M%3BMerkel%2C+Aimee+W%3BSarantos%2C+Menelaos%3BSolomon%2C+Sean+C%3BVervack%2C+Ronald+J%2C+Jr%3BAnonymous&rft.aulast=McClintock&rft.aufirst=William&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Preliminary geological map of the Ac-H-11 Sintana quadrangle of Ceres; an integrated mapping study using Dawn spacecraft data AN - 1849299323; 2016-105875 AB - Ac-H-11 Sintana is one of 15 geologic mapping quadrangles on the dwarf planet Ceres, which are used to identify geologic units and features. The quadrangle is located in the southern hemisphere of Ceres between 21-66 degrees S and 0-90 degrees E Results of our geologic mapping will contribute to the understanding of the geologic history and surface-forming processes of this quadrangle. The dominant feature is an alignment of three craters in the topographically lower center of the quadrangle. These craters illustrate the diversity of crater forms, inner structures and symmetries, such as terraced walls and elongated central structures. There are numerous central peaks inside craters of different sizes. The largest craters in the quadrangle reveal more complex inner structures and flat floors. Great variation in the slopes of crater walls and degradation states of crater rims can be found, as well as mass wasting features, such as landslides. Several linear structures are evident, which will be distinguished and analyzed. Possible explanations for these structures include secondary crater chains and pit chains. A positive topography feature is found to the south of the Sintana crater. Examining aforementioned features will help to assess surface composition and local tectonics. Different ratios of color-filter images suggest a major geological boundary in the NE of the quadrangle. Visible and infrared spectroscopic data will contribute to the compositional interpretation. The mapping is based on a stereo digital terrain model, clear-filter images and images of different color-filter ratios derived from the Framing Camera onboard the Dawn spacecraft. To date, resolutions of 1.3 km/px from the approach phase in Spring 2015, and 415 m/px from the Survey Orbit, in June 2015, are used in geological mapping. Higher resolution images will be obtained during the High Altitude Mapping Orbit (140 m/px) in Fall 2015, followed by the Low Altitude Mapping Orbit (35 m/px) in the beginning of 2016. JF - American Geophysical Union Fall Meeting AU - Roatsch, Thomas AU - Schulzeck, Franziska AU - Jaumann, Ralf AU - Krohn, Katrin AU - Williams, David A AU - Buczkowski, Debra AU - Mest, Scott C AU - Scully, Jennifer E C AU - von der Gathen, Isabel AU - Kersten, Elke AU - Matz, Klaus-Dieter AU - Nass, Andrea AU - Otto, Katharina AU - Pieters, Carle M AU - Preusker, Frank AU - De Sanctis, Maria Cristina AU - Schroeder, Stefanus AU - Stephan, Katrin AU - Wagner, Roland J AU - Raymond, Carol A AU - Russell, Christopher T AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53E EP - 2178 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849299323?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Preliminary+geological+map+of+the+Ac-H-11+Sintana+quadrangle+of+Ceres%3B+an+integrated+mapping+study+using+Dawn+spacecraft+data&rft.au=Roatsch%2C+Thomas%3BSchulzeck%2C+Franziska%3BJaumann%2C+Ralf%3BKrohn%2C+Katrin%3BWilliams%2C+David+A%3BBuczkowski%2C+Debra%3BMest%2C+Scott+C%3BScully%2C+Jennifer+E+C%3Bvon+der+Gathen%2C+Isabel%3BKersten%2C+Elke%3BMatz%2C+Klaus-Dieter%3BNass%2C+Andrea%3BOtto%2C+Katharina%3BPieters%2C+Carle+M%3BPreusker%2C+Frank%3BDe+Sanctis%2C+Maria+Cristina%3BSchroeder%2C+Stefanus%3BStephan%2C+Katrin%3BWagner%2C+Roland+J%3BRaymond%2C+Carol+A%3BRussell%2C+Christopher+T%3BAnonymous&rft.aulast=Roatsch&rft.aufirst=Thomas&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - High-resolution Ceres HAMO atlas derived from dawn FC images AN - 1849298673; 2016-105863 AB - Introduction: NASA's Dawn spacecraft will orbit the dwarf planet Ceres in August and September 2015 in HAMO (High Altitude Mapping Orbit) with an altitude of about 1,500 km to characterize for instance the geology, topography, and shape of Ceres before it will be transferred to the lowest orbit. One of the major goals of this mission phase is the global mapping of Ceres. Data: The Dawn mission is equipped with a framing camera (FC). The framing camera will take about 2600 clear filter images with a resolution of about 120 m/pixel and different viewing angles and different illumination conditions. Data Processing: The first step of the processing chain towards the cartographic products is to ortho-rectify the images to the proper scale and map projection type. This process requires detailed information of the Dawn orbit and attitude data and of the topography of the target. Both, improved orientation and high-resolution shape models, are provided by stereo processing of the HAMO dataset. Ceres' HAMO shape model is used for the calculation of the ray intersection points while the map projection itself will be done onto a reference sphere for Ceres. The final step is the controlled mosaicking of all nadir images to a global mosaic of Ceres, the so called basemap. Ceres map tiles: The Ceres atlas will be produced in a scale of 1:750,000 and will consist of 15 tiles that conform to the quadrangle schema for small planets and medium size Icy satellites. A map scale of 1:750,000 guarantees a mapping at the highest available Dawn resolution in HAMO. Nomenclature: The Dawn team proposed to the International Astronomical Union (IAU) to use the names of gods and goddesses of agriculture and vegetation from world mythology as names for the craters. This proposal was accepted by the IAU and the team proposed names for geological features to the IAU based on the HAMO mosaic. These feature names will be applied to the map tiles. JF - American Geophysical Union Fall Meeting AU - Roatsch, Thomas AU - Kersten, Elke AU - Matz, Klaus-Dieter AU - Preusker, Frank AU - Scholten, Frank AU - Jaumann, Ralf AU - Raymond, Carol A AU - Russell, C T AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53E EP - 2166 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298673?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=High-resolution+Ceres+HAMO+atlas+derived+from+dawn+FC+images&rft.au=Roatsch%2C+Thomas%3BKersten%2C+Elke%3BMatz%2C+Klaus-Dieter%3BPreusker%2C+Frank%3BScholten%2C+Frank%3BJaumann%2C+Ralf%3BRaymond%2C+Carol+A%3BRussell%2C+C+T%3BAnonymous&rft.aulast=Roatsch&rft.aufirst=Thomas&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Distribution and nature of CO (sub 2) on Enceladus AN - 1849298632; 2016-105655 AB - We present the first global mapping and analysis of CO (sub 2) on the surface of Enceladus, and we report the largest concentrations of free CO (sub 2) on the southern polar region using the Visual and Infrared Mapping Spectrometer (VIMS) on Cassini. Free CO (sub 2) ice and complexed CO (sub 2) were already reported near the South Pole (Brown et al., Science, 2006; Hansen, LPSC, 2010). Our work focuses on determining the amount, location and molecular state of CO (sub 2) on Enceladus, which could help identify and model geophysical processes that currently occur in the interior. One hypothesis for bringing heat and chemicals to the surface is a warm subsurface ocean containing dissolved gases, mostly CO (sub 2) (Postberg F. et al., Nature, 2009). Therefore, our observations are consistent with erupted and condensed materials onto Enceladus' surface (Matson et al., Icarus, 2012; Matson et al. AGU Fall meeting 2015). Free CO (sub 2) ice absorbs at 4.268 mu m (Sandford and Allamandola, 1990) and CO (sub 2) complexed with other molecules absorbs at 4.247 mu m (Chaban et al., Icarus, 2007). The Enceladus case is complicated because both free and complexed CO (sub 2) are present, and the absorption band of interest is shallow and close to the instrument detection limit. Many of the few Enceladus VIMS data sets have significant and sometimes unusual noise, which we attempted to avoid or remove. We utilized all VIMS data sets available that were collected over ten years of the Cassini mission as a way to improve the detection statistics and signal to noise. We also used wavelengths near 2.7 mu m where CO (sub 2) has a narrow absorption as a filter to help identify CO (sub 2) -rich areas. Finally, we selected observations that have spatial resolution better than 100 km in order to create a map that can be compared with the largest fractures, known as Tiger Stripes, in the southern polar region. JF - American Geophysical Union Fall Meeting AU - Combe, Jean-Philippe AU - McCord, Thomas B AU - Matson, Dennis AU - Johnson, Torrence V AU - Scipioni, Francesca AU - Tosi, Federico AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P23D EP - 05 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298632?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+and+nature+of+CO+%28sub+2%29+on+Enceladus&rft.au=Combe%2C+Jean-Philippe%3BMcCord%2C+Thomas+B%3BMatson%2C+Dennis%3BJohnson%2C+Torrence+V%3BScipioni%2C+Francesca%3BTosi%2C+Federico%3BAnonymous&rft.aulast=Combe&rft.aufirst=Jean-Philippe&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Geology of Pluto and Charon overview AN - 1849298628; 2016-105938 AB - Pluto's surface was found to be remarkably diverse in terms of its range of landforms, terrain ages, and inferred geological processes. There is a latitudinal zonation of albedo. The conspicuous bright albedo heart-shaped feature informally named Tombaugh Regio is comprised of several terrain types. Most striking is Texas-sized Sputnik Planum, which is apparently level, has no observable craters, and is divided by polygons and ovoids bounded by shallow troughs. Small smooth hills are seen in some of the polygon-bounding troughs. These hills could either be extruded or exposed by erosion. Sputnik Planum polygon/ovoid formation hypotheses range from convection to contraction, but convection is currently favored. There is evidence of flow of plains material around obstacles. Mountains, especially those seen south of Sputnik Planum, exhibit too much relief to be made of CH (sub 4) , CO, or N (sub 2) , and thus are probably composed of H (sub 2) O-ice basement material. The north contact of Sputnik Planum abuts a scarp, above which is heavily modified cratered terrain. Pluto's large moon Charon is generally heavily to moderately cratered. There is a mysterious structure in the arctic. Charon's surface is crossed by an extensive system of rift faults and graben. Some regions are smoother and less cratered, reminiscent of lunar maria. On such a plain are large isolated block mountains surrounded by moats. At this conference we will present highlights of the latest observations and analysis. JF - American Geophysical Union Fall Meeting AU - Moore, J M AU - Stern, A AU - Weaver, Harold A AU - Young, L A AU - Ennico Smith, Kimberly AU - Olkin, C AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract U53A EP - 03 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298628?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Geology+of+Pluto+and+Charon+overview&rft.au=Moore%2C+J+M%3BStern%2C+A%3BWeaver%2C+Harold+A%3BYoung%2C+L+A%3BEnnico+Smith%2C+Kimberly%3BOlkin%2C+C%3BAnonymous&rft.aulast=Moore&rft.aufirst=J&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Seeking signs of life in Nili Patera with Icelandic sinter field exploration AN - 1849298589; 2016-105676 AB - The past decade of Martian orbital and surface exploration has made it clear that the planet could have supported life as we know it in many places throughout much of it's history. The next step in exploration will be to find the evidence for and characterize any preserved Martian life. The jump from confirming habitability to finding life will be difficult and likely require a systemic surface exploration of multiple, specific sites. One site, the sinter mounds of the Nili Patera caldera, provides the ideal combination of hot, neutral to alkaline waters that can develop or support life and the sinter precipitation to preserve it. Nili Patera also provides deposits that are well mapped from orbit allowing a mission to pinpoint the target rocks. With this target known, we can develop the mission, the payload and the science to fit the goals. Several sinter field sites in Iceland were selected for mission testing. They were selected to provide diversity in scale, chemistry and complexity. At each site, we asked the same questions that would drive a mission to Mars. Was there life? What are its preserved properties? What are the environmental history of the sinters and the volcanic history of the local terrain? These questions were investigated with spectral, compositional and morphological analysis. By investigating these questions in Iceland, we will determine which observations, in terms of terrain access and instrument selection are required for mission success on Mars. We report the results from the August 2015 expedition, the first of two planned field seasons. This summer was focused on finalizing the field locations, acquiring mapping data and an initial sampling campaign to determine expected composition and calibrate instruments for year two. With this information, we will determine an investigation plan consistent with a range of mission types from robotic lander to sample return to human exploration. We will also determine the instruments required by the site diversity. By the end of the project we should know what mission types can provide the required results. Which instruments are required for basic mission success and the cost benefit of additional analysis and what basic science questions must be investigated before sending a focused mission to determine the past existence of life in the Nili Patera sinter mounds. JF - American Geophysical Union Fall Meeting AU - Skok, John R AU - Farmer, Jack D AU - Parente, Mario AU - Gaskin, Jessica AU - Kaasalainen, Hanna AU - Tobler, Dominique AU - Jerman, Gregory A AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P31A EP - 2032 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298589?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Seeking+signs+of+life+in+Nili+Patera+with+Icelandic+sinter+field+exploration&rft.au=Skok%2C+John+R%3BFarmer%2C+Jack+D%3BParente%2C+Mario%3BGaskin%2C+Jessica%3BKaasalainen%2C+Hanna%3BTobler%2C+Dominique%3BJerman%2C+Gregory+A%3BAnonymous&rft.aulast=Skok&rft.aufirst=John&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Water in the lithospheric mantle beneath a Phanerozoic continental belt; FTIR analyses of Alligator Lake xenoliths (Yukon, Canada) AN - 1849298585; 2016-106334 AB - Water in the mantle influences melting, metasomatism, viscosity and electrical conductivity. The Alligator Lake mantle xenolith suite is one of three bimodal peridotite suites from the northern Canadian Cordillera brought to the surface by alkali basalts, i.e., it consists of chemically distinct lherzolites and harzburgites. The lherzolites have equilibration temperatures about 50 degrees C lower than the harzburgites and are thought to represent the fertile upper mantle of the region. The harzburgites might have come from slightly deeper in the mantle and/or be the result of a melting event above an asthenospheric upwelling detected as a seismic anomaly at 400-500 km depth. Major and trace element data are best interpreted as the lherzolite mantle having simultaneously experienced 20-25% partial melting and a metasomatic event to create the harzburgites. Well-characterized xenoliths are being analyzed for water by FTIR. Harzburgites contain 29-52 ppm H (sub 2) O in orthopyroxene (opx) and approximately 140 ppm H (sub 2) O in clinopyroxene (cpx). The lherzolites have H (sub 2) O contents of 27-150 ppm in opx and 46-361 ppm in cpx. Despite correlating with enrichments in LREE, the water contents of the harzburgite pyroxenes are low relative to those of typical peridotite xenoliths, suggesting that the metasomatic agents were water-poor, contrarily to what has been suggested before. The water content of cpx is about double that of opx indicating equilibrium. Olivine water contents are low (<5 ppm H (sub 2) O) and out of equilibrium with those of opx and cpx, which may be due to H loss during xenolith ascent. This is consistent with olivines containing more water in their cores than their rims. Olivines exclusively exhibit water bands in the 3400-3000 cm-1 range, which may be indicative of a reduced environment. JF - American Geophysical Union Fall Meeting AU - Gelber, McKensie AU - Peslier, Anne H AU - Brandon, Alan D AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract V53F EP - 3167 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298585?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+lithospheric+mantle+beneath+a+Phanerozoic+continental+belt%3B+FTIR+analyses+of+Alligator+Lake+xenoliths+%28Yukon%2C+Canada%29&rft.au=Gelber%2C+McKensie%3BPeslier%2C+Anne+H%3BBrandon%2C+Alan+D%3BAnonymous&rft.aulast=Gelber&rft.aufirst=McKensie&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Regional and local temperature maps of dwarf planet ceres from dawn/VIR AN - 1849298584; 2016-105881 AB - Since the beginning of 2015, the Visible InfraRed (VIR) mapping spectrometer onboard the NASA Dawn mission has obtained hyperspectral images of Ceres, with improving spatial resolution. VIR operates in the overall spectral range 0.25-5.1 mu m, with the main goal of inferring the surface composition of the target in its uppermost layer, as thick as tens of microns. Taking advantage of the wavelength range longward of 3 mu m, VIR can be used as a thermal mapper, i.e. as a tool to derive thermal images and spatially-resolved temperature maps. To do this, the VIR team uses a Bayesian approach to nonlinear inversion that was extensively applied to the Vesta dataset earlier. Already in February 2015, VIR had the chance to acquire data with a spatial resolution of approximately 11 km/px. Those temperature images revealed that a spot of high-albedo (bright) material, highlighted by the Hubble Space Telescope (HST) earlier and recently associated with the crater Haulani, was cooler than surrounding regions seen under similar solar illumination, whereas the brightest spots on Ceres, in the crater Occator, did not display any thermal contrast. The following Survey phase yielded hyperspectral coverage of Ceres at approximately 1.3 km/px, and the High Altitude Mapping Orbit (HAMO) phase starting in mid-August 2015 is expected to provide VIR data with a resolution of approximately 0.4 km/px. These datasets allow derivation of regional and local temperature maps as well as the study of thermal anomalies at those spatial scales. Due to the low overall thermal inertia of Ceres, the surface temperature is essentially dominated by the instantaneous value of the solar incidence angle. Small values of this angle result in high surface temperatures, and, unlike Vesta, the low obliquity of Ceres ( approximately 4 degrees ) does not result in observable seasonal effects for a given location on the surface. However, different responses to insolation as observed at the local scale may be indicative of differences in density/porosity and thermal conductivity, which is key to constrain thermo-physical modeling. JF - American Geophysical Union Fall Meeting AU - Zambon, Francesca AU - Tosi, Federico AU - Capria, Maria Teresa AU - Carrorro, Filippo Giacomo AU - Ciarniello, Mauro AU - De Sanctis, Maria Cristina AU - Longobardo, Andrea AU - Raponi, Andrea AU - Ammannito, Eleonora AU - Combe, Jean Philippe AU - Hiesinger, Harald AU - Li, Jian-Yang AU - McFadden, Lucy A AU - Schorghofer, Norbert AU - Schroeder, Stefan AU - Stephan, Katrin AU - Rayman, Marc AU - Raymond, Carol A AU - Russell, C T AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53E EP - 2184 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298584?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+and+local+temperature+maps+of+dwarf+planet+ceres+from+dawn%2FVIR&rft.au=Zambon%2C+Francesca%3BTosi%2C+Federico%3BCapria%2C+Maria+Teresa%3BCarrorro%2C+Filippo+Giacomo%3BCiarniello%2C+Mauro%3BDe+Sanctis%2C+Maria+Cristina%3BLongobardo%2C+Andrea%3BRaponi%2C+Andrea%3BAmmannito%2C+Eleonora%3BCombe%2C+Jean+Philippe%3BHiesinger%2C+Harald%3BLi%2C+Jian-Yang%3BMcFadden%2C+Lucy+A%3BSchorghofer%2C+Norbert%3BSchroeder%2C+Stefan%3BStephan%2C+Katrin%3BRayman%2C+Marc%3BRaymond%2C+Carol+A%3BRussell%2C+C+T%3BAnonymous&rft.aulast=Zambon&rft.aufirst=Francesca&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Chemistry of the materials above and below an unconformity between the Murray and Stimson Formations in Gale Crater, Mars AN - 1849298550; 2016-105896 AB - MSL began investigating a contact between Murray formation, (fine grained lake deposits) and the younger Stimson formation at Marias Pass in May 2015, on the lower slopes of Mt. Sharp. Images show that the Murray formation, with numerous calcium sulfate veins compared to the Stimson, is truncated at an erosional contact. MAHLI images show a white layer a few mm thick at the contact that might be calcium sulfate. The lowermost beds of the Stimson unit in the Missoula area comprise horizontally laminated or cross-laminated sandstones. The sandstones are poorly sorted with floating granules and very coarse sand grains set in a fine- medium-grained sand 'matrix'. This material directly above the contact is a resistant, basal ledge-forming layer that also forms numerous blocks of float on top of the eroded Murray. This basal layer contains light toned fragments, possibly calcium sulfate, eroded from the Murray. The poor sorting and presence of sub-angular grains, together with the absence of preferential sorting into size sorted layers would seem to rule out eolian processes for the lowermost beds of the Stimson and suggest fluvial processes were responsible for deposition of these beds. For chemostratigraphy, the distance of each ChemCam or APXS observation above or below the contact was determined from images and the NavCam stereo mesh. The top of the Murray near the Missoula area is variable in composition, and additional analyses are planned to determine if weathering occurred at the eroded surface. Above the contact, the lowest 2 cm of the resistant slab is higher in SiO (sub 2) , and lower in Al (sub 2) O (sub 3) , K (sub 2) O and Na (sub 2) O, relative to other Stimson analyses. In a few points with low totals, there is a correlation between Ca and missing components (presumed to be mostly S). These points could be connected to calcium sulfate in the form of cements and/or incorporation of eroded clasts of Murray vein materials. JF - American Geophysical Union Fall Meeting AU - Newsom, Horton E AU - Belgacem, Ines AU - Wiens, Roger C AU - Frydenvang, Jens AU - Gasnault, Olivier AU - Maurice, Sylvestre AU - Gasda, Patrick James AU - Clegg, Samuel M AU - Cousin, Agnes AU - Rapin, William AU - Jackson, Ryan AU - Vaci, Zoltan AU - Ha, Beth AU - Blaney, Diana L AU - Bridges, Nathan AU - Francis, Raymond AU - Payre, Valerie AU - Gupta, Sanjeev AU - Banham, Steven AU - Schroeder, Jeff AU - Calef, Fred J, III AU - Edgett, Kenneth S AU - Fey, Deirdra M AU - Fisk, Martin R AU - Gellert, Ralf AU - Thompson, Lucy M AU - Perrett, Glynis M AU - Grotzinger, John P AU - Rubin, David M AU - Williams, Amy AU - Kah, Linda C AU - Kronyak, Rachel Emily AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53F EP - 06 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298550?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Chemistry+of+the+materials+above+and+below+an+unconformity+between+the+Murray+and+Stimson+Formations+in+Gale+Crater%2C+Mars&rft.au=Newsom%2C+Horton+E%3BBelgacem%2C+Ines%3BWiens%2C+Roger+C%3BFrydenvang%2C+Jens%3BGasnault%2C+Olivier%3BMaurice%2C+Sylvestre%3BGasda%2C+Patrick+James%3BClegg%2C+Samuel+M%3BCousin%2C+Agnes%3BRapin%2C+William%3BJackson%2C+Ryan%3BVaci%2C+Zoltan%3BHa%2C+Beth%3BBlaney%2C+Diana+L%3BBridges%2C+Nathan%3BFrancis%2C+Raymond%3BPayre%2C+Valerie%3BGupta%2C+Sanjeev%3BBanham%2C+Steven%3BSchroeder%2C+Jeff%3BCalef%2C+Fred+J%2C+III%3BEdgett%2C+Kenneth+S%3BFey%2C+Deirdra+M%3BFisk%2C+Martin+R%3BGellert%2C+Ralf%3BThompson%2C+Lucy+M%3BPerrett%2C+Glynis+M%3BGrotzinger%2C+John+P%3BRubin%2C+David+M%3BWilliams%2C+Amy%3BKah%2C+Linda+C%3BKronyak%2C+Rachel+Emily%3BAnonymous&rft.aulast=Newsom&rft.aufirst=Horton&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Numerical modelling and ejecta distribution analysis of a Martian fresh crater AN - 1849298534; 2016-105849 AB - Images taken by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter reveal fresh craters on Mars that are known to be recent as they are constrained by before and after images (Daubar et al., 2013). In particular, on Nov. 19, 2013 an image acquired by HiRISE, ESP (sub 034285) (sub 1835) , observed a 25 m diameter fresh crater located at 3.7 degrees N, 53.4 degrees E. This impact occurred between July 2010 and May 2012, as constrained by Context camera (CTX) images. Because the terrain where the crater formed is dusty, the fresh crater appears blue in the enhanced color of the HiRISE image, due to removal of the reddish dust in that area. We analyze this crater using the iSALE shock physics code (Amsden et al., 1980, Collins et al., 2004, Ivanov et al., 1997, Melosh et al., 1992, Wunnemann et al., 2006) to model the formation of this impact structure which is approximately 25 m in diameter and approximately 2.5-3 m in depth. These values are obtained from the DTM profile we have generated. We model the Martian surface considering different target compositions as regolith and fractured basalt rock and we based our simulations on a basalt projectile with a porosity of 10% (which is derived from the average of the meteorite types proposed by Britt et al., 2002) that hits the Martian surface with a beginning velocity equal to 7 km/s (Le Feuvre & Wieczorek, 2011) and an impact angle of 90 degrees . The projectile size is around 1 m and it is estimated from the comparison between the DTM profile and the profiles obtained by numerical modelling. The primary objective of this analysis is the detailed study of the ejecta, in fact we will track the ejecta coming from the simulation and compare them to the ejecta distribution computed on the image (the ejecta reached a distance of more than 15 km). From the matching of the simulated ejecta with their real distribution, we will be able to understand the goodness of the simulation and also put constraints on the target material. JF - American Geophysical Union Fall Meeting AU - Lucchetti, Alice AU - Cremonese, Gabriele AU - Cambianica, Pamela AU - Daubar, Ingrid AU - McEwen, Alfred S AU - Re, Cristina AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53D EP - 2152 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298534?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Numerical+modelling+and+ejecta+distribution+analysis+of+a+Martian+fresh+crater&rft.au=Lucchetti%2C+Alice%3BCremonese%2C+Gabriele%3BCambianica%2C+Pamela%3BDaubar%2C+Ingrid%3BMcEwen%2C+Alfred+S%3BRe%2C+Cristina%3BAnonymous&rft.aulast=Lucchetti&rft.aufirst=Alice&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Variation of geochemical signatures and correlation of biomarkers in icelandic Mars analogue environments AN - 1849298523; 2016-105669 AB - Exploration missions to Mars rely on rovers to perform deep analyses over small sampling areas; however, landing site selection is done using large-scale but low-resolution remote sensing data. Using Earth analogue environments to estimate the small-scale spatial and temporal distributions of key geochemical signatures and (for habitability studies) biomarkers helps ensure that the chosen sampling strategies meet mission science goals. We conducted two rounds of analogue expeditions to recent Icelandic lava fields. In July 2013, we tested correlation between three common biomarker assays: cell quantification via fluorescence microscopy, ATP quantification via bioluminescence, and quantitative PCR with universal primer sets. Sample sites were nested at four spatial scales (1 m, 10 m, 100 m, and >1 km) and homogeneous at 'remote imaging' resolution (overall temperature, apparent moisture content, and regolith grain size). All spatial scales were highly diverse in ATP, bacterial 16S, and archaeal 16S DNA content; nearly half of sites were statistically different in ATP content at alpha =0.05. Cell counts showed significant variation at the 10 m and 100 m scale; at the >1 km scale, the mean counts were not distinguishable, but the median counts were, indicating differences in underlying distribution. Fungal 18S DNA content similarly varied at 1 m, 10 m, and 100 m scales only. Cell counts were not correlated with ATP or DNA content at any scale. ATP concentration and DNA content for all three primer sets were positively correlated. Bacterial DNA content was positively correlated with archaeal and fungal DNA content, though archaeal correlation was weak. Fungal and archaeal correlation was borderline. In July 2015, we repeated the sampling strategy, with the addition of a smaller-scale sampling grid of 10 cm and a third >1 km location. This expedition also measured reflectance of the tephra cover and preserved mineral samples for future Raman spectroscopy in order to better distinguish between effects of geochemical variation and intrinsic biomarker variation. JF - American Geophysical Union Fall Meeting AU - Gentry, Diana AU - Amador, Elena Sophia AU - Cable, Morgan L AU - Cantrell, Thomas AU - Chaudry, Nosheen AU - Cullen, Thomas AU - Duca, Zachary A AU - Jacobsen, Malene B AU - McCaig, Heather Catherine AU - Murukesan, Gayathri AU - Rennie, Vincent AU - Schwieterman, Edward W AU - Stevens, Adam H AU - Tan, George AU - Yin, Chang AU - Stockton, Amanda M AU - Cullen, David AU - Geppert, Wolf AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P31A EP - 2025 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298523?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Variation+of+geochemical+signatures+and+correlation+of+biomarkers+in+icelandic+Mars+analogue+environments&rft.au=Gentry%2C+Diana%3BAmador%2C+Elena+Sophia%3BCable%2C+Morgan+L%3BCantrell%2C+Thomas%3BChaudry%2C+Nosheen%3BCullen%2C+Thomas%3BDuca%2C+Zachary+A%3BJacobsen%2C+Malene+B%3BMcCaig%2C+Heather+Catherine%3BMurukesan%2C+Gayathri%3BRennie%2C+Vincent%3BSchwieterman%2C+Edward+W%3BStevens%2C+Adam+H%3BTan%2C+George%3BYin%2C+Chang%3BStockton%2C+Amanda+M%3BCullen%2C+David%3BGeppert%2C+Wolf%3BAnonymous&rft.aulast=Gentry&rft.aufirst=Diana&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Ca-Mg carbonate cements in ophiolite-hosted creek waters of the Del Puerto ophiolite, CA, and their potential significance as a planetary biosignature AN - 1849298467; 2016-105944 AB - Serpentinization, the reaction at moderate pressure and temperature of water with olivine and pyroxene that are common in basalts and ultramafic rocks, results in the formation of alkaline fluids and the precipitation of a variety of secondary minerals. Terrestrial localities where active serpentinization is occurring are ideal Mars analogs for examining the characteristics of an environment that possesses two of the key features that we assume necessary to host life: water and an internally generated energy source. This study focuses on a related but different feature present where active serpentinization is occurring - namely, carbonate cements forming under plain air in the vicinity of Adobe Springs, CA. This site is located in the Del Puerto ophiolite about 150 km ESE of San Francisco, in the Coast Range of California. Two alkaline spring water compositions have been described at the site, a Ca-OH water (which is not currently being emitted by the active springs), and a Mg-CO (sub 3) water. Abundant dolomitic and calcitic carbonate cements are found in the creek drainages near the springs, associated with a diverse microbial community. We conducted a systematic study of the carbonate cements using SEM, EMP, XRD, TEM, and SIMS, focusing on sub-mm variations in texture, mineral chemistry and stable isotope (COH) composition. We compared our measurements with thermodynamic modeling results constrained by chemical analysis of water chemistry from the site and known partition coefficients and stable isotope fractionation factors. The wide range of carbonate compositions and textures observed at the Adobe Springs site suggests that more than one process is involved in their precipitation, including the possibility of microbially mediated dolomite mineralization. These carbonate cements could be a mineralogic biomarker of serpentinization and microbiological processes on Mars and other rocky planets and, therefore, prime targets for future astrobiological investigations. JF - American Geophysical Union Fall Meeting AU - Blank, J G AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract V11A EP - 3049 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298467?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Ca-Mg+carbonate+cements+in+ophiolite-hosted+creek+waters+of+the+Del+Puerto+ophiolite%2C+CA%2C+and+their+potential+significance+as+a+planetary+biosignature&rft.au=Blank%2C+J+G%3BAnonymous&rft.aulast=Blank&rft.aufirst=J&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - RIS (super 4) E at Kilauea's December 1974 flow; assessing the integration of portable infrared multispectral imaging into planetary surface exploration AN - 1849298464; 2016-105843 AB - Portable, hand-held geochemical and mineralogical instruments are potentially valuable tools to be used in sample collection and site documentation activities during future human missions to planetary bodies. The main purpose of these instruments is to allow fast in situ analyses of rocks and soils so that astronauts can quickly document sample characteristics and context, and make strategic decisions on sample selection in the context of predefined scientific objectives. As part of the Remote, In Situ, and Synchrotron Studies for Science and Exploration (RIS4E) investigation, we test the performance of candidate instruments and operational procedures through fieldwork expeditions that simulate lunar and asteroid environments on Earth. Our field site, Kilauea Volcano in Hawaii, is a lava field with landscape and mineralogy that represent a reasonable analog to the Moon and some differentiated asteroids. In this paper, we focus on one of the candidate instruments, the infrared multispectral imager. During field expeditions in 2014 and 2015, we explored the applicability of the multispectral imager in manned surface operations. From these expeditions, our instrument calibration techniques and data collection procedures matured. Current work focuses on assessment of data product usefulness, through comparison with detailed laboratory chemical and spectral measurements, and field descriptions of surface textures. Our field expeditions will continue in other analog locations to obtain improved understanding of the multispectral imager and its role in sampling workflow so that science return can be maximized in future human missions. JF - American Geophysical Union Fall Meeting AU - Ito, Gen AU - Rogers, Deanne AU - Bleacher, Jacob E AU - Young, Kelsey E AU - Edwards, Christopher S AU - Glotch, Timothy D AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53C EP - 2146 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298464?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=RIS+%28super+4%29+E+at+Kilauea%27s+December+1974+flow%3B+assessing+the+integration+of+portable+infrared+multispectral+imaging+into+planetary+surface+exploration&rft.au=Ito%2C+Gen%3BRogers%2C+Deanne%3BBleacher%2C+Jacob+E%3BYoung%2C+Kelsey+E%3BEdwards%2C+Christopher+S%3BGlotch%2C+Timothy+D%3BAnonymous&rft.aulast=Ito&rft.aufirst=Gen&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Extending the lunar mapping and modeling portal; new capabilities and new worlds AN - 1849298462; 2016-105724 AB - NASA's Lunar Mapping and Modeling Portal (LMMP) provides a web-based Portal and a suite of interactive visualization and analysis tools to enable mission planners, lunar scientists, and engineers to access mapped lunar data products from past and current lunar missions (http://lmmp.nasa.gov). During the past year, the capabilities and data served by LMMP have been significantly expanded. New interfaces are providing improved ways to access and visualize data. Many of the recent enhancements to LMMP have been specifically in response to the requirements of NASA's proposed Resource Prospector lunar rover, and as such, provide an excellent example of the application of LMMP to mission planning. At the request of NASA's Science Mission Directorate, LMMP's technology and capabilities are now being extended to additional planetary bodies. New portals for Vesta and Mars are the first of these new products to be released. On March 31, 2015, the LMMP team released Vesta Trek (http://vestatrek.jpl.nasa.gov), a web-based application applying LMMP technology to visualizations of the asteroid Vesta. Data gathered from multiple instruments aboard Dawn have been compiled into Vesta Trek's user-friendly set of tools, enabling users to study the asteroid's features. With an initial release on July 1, 2015, Mars Trek replicates the functionality of Vesta Trek for the surface of Mars. While the entire surface of Mars is covered, higher levels of resolution and greater numbers of data products are provided for special areas of interest. Early releases focus on past, current, and future robotic sites of operation. Future releases will add many new data products and analysis tools as Mars Trek has been selected for use in site selection for the Mars 2020 rover and in identifying potential human landing sites on Mars. Other destinations will follow soon. The user community is invited to provide suggestions and requests as the development team continues to expand the capabilities of LMMP, its related products, and the range of data and tools that they provide. This presentation will provide an overview of LMMP, Vesta Trek, and Mars Trek, demonstrate their uses and capabilities, highlight new features, and preview coming enhancements. JF - American Geophysical Union Fall Meeting AU - Day, Brian Hamilton AU - Law, Emily AU - Arevalo, Eddie AU - Bui, Bach AU - Chang, George AU - Dodge, Kyle AU - Kim, Richard M AU - Malhotra, Shantanu AU - Sadaqathullah, Syed AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P44A EP - 07 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298462?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Extending+the+lunar+mapping+and+modeling+portal%3B+new+capabilities+and+new+worlds&rft.au=Day%2C+Brian+Hamilton%3BLaw%2C+Emily%3BArevalo%2C+Eddie%3BBui%2C+Bach%3BChang%2C+George%3BDodge%2C+Kyle%3BKim%2C+Richard+M%3BMalhotra%2C+Shantanu%3BSadaqathullah%2C+Syed%3BAnonymous&rft.aulast=Day&rft.aufirst=Brian&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Sr and Pb isotopic geochemistry of feldspars and implications for the growth of megacrysts in plutonic settings AN - 1849298460; 2016-106248 AB - Why megacrystic textures develop in silicic igneous rocks is still unknown. One hypothesis is that these crystals nucleate early in a magma chamber with a high liquid content. A supportive observation of this hypothesis is areas in plutons with high concentrations of megacrysts suggesting flow sorting. Another group of hypotheses suggest megacrystic textures form during protracted late-stage coarsening in a low-melt, interlocked matrix due to either thermal oscillations from incremental pluton emplacement, or Ostwald ripening. Isotopic analyses of large, euhedral K-feldspar megacrysts from the Cretaceous intrusive suites of the Sierra Nevada batholith (SNB) provide new insight into their origin. Megacrysts from the SNB reach the decimeter scale, are Or rich (85-90%), are perthitic, and host mineral inclusions of nearly all phases in the host rock. In-situ micro-drilling of transects, from core to rim, of the alkali feldspars provides material for Sr and Pb isotopic analyses by thermal ionization mass spectrometry (TIMS). Preliminary (super 87) Sr/ (super 86) Sr (sub (i)) isotopic data from samples from the Cathedral Peak Granodiorite, of the Tuolumne Intrusive Suite range from 0.706337 to 0.706452 ( approximately 1.6epsilon (sub Sr) ) near the cores, whereas a sawtooth pattern with larger variability, 0.706179 to 0.706533 ( approximately 5epsilon (sub Sr) ), occurs nears the rims. We interpret these preliminary data to indicate that the late portion of growth (i.e. crystal rim) was dominated by either cannibalism of small K-feldspar crystals with isotopic variability, or by addition of isotopically diverse late components to the magma. By comparing the Sr and Pb isotopic stratigraphy of megacrysts from a variety of rock matrices and different granitoids in the SNB isotopic trends can be evaluated to determine if crystals sizes are dependent on disequilibrium processes or grow at a steady state. JF - American Geophysical Union Fall Meeting AU - Munnikhuis, Jonathan AU - Glazner, Allen F AU - Coleman, Drew Steven AU - Mills, Ryan D AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract V51G EP - 3121 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298460?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Sr+and+Pb+isotopic+geochemistry+of+feldspars+and+implications+for+the+growth+of+megacrysts+in+plutonic+settings&rft.au=Munnikhuis%2C+Jonathan%3BGlazner%2C+Allen+F%3BColeman%2C+Drew+Steven%3BMills%2C+Ryan+D%3BAnonymous&rft.aulast=Munnikhuis&rft.aufirst=Jonathan&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Preliminary geological map of the Ac-H-2 Coniraya quadrangle of Ceres; an integrated mapping study using Dawn spacecraft data AN - 1849298449; 2016-105865 AB - To better understand the geologic history of dwarf planet Ceres, the surface has been divided into 15 quadrangles that are systematically mapped on the basis of images obtained by NASA's Dawn spacecraft, which began orbiting Ceres in April 2015. We will report on preliminary mapping results for the Ac-H-2 Coniraya Quadrangle based on Framing Camera (FC) mosaics from the Dawn Approach (1.3 km/px) and Survey (415 m/px) orbits. This quadrangle is located between 21-66 degrees N and 0-90 degrees E and is dominated by mostly highly degraded impact craters of diameters between 50 and 200 km and clusters of small- to midsize impact craters. Color data show that this quadrangle is generally darker than most regions of the southern hemisphere. Two prominent impact craters in this quadrangle have been named Coniraya and Gaue crater, respectively. Coniraya is the largest more or less intact impact crater with a diameter of 136 km, centered at 65.8 degrees N/40.5 degrees E. It appears shallow and its crater rim is heavily degraded but still continuous. At the current image resolution, textural differences between the interior and exterior of the crater are not visible. With a diameter of 84 km, Gaue crater appears to be the freshest large impact crater in this quadrangle. It is located at the eastern border of the Coniraya Quadrangle with a small central peak at 30 degrees N/85.7 degrees E. The crater rim is quite sharp and the ejecta blanket can be traced around the crater to a distance of approximately 200 km from the crater center. Most of the crater floor around the central peak is covered by a smooth uniform unit with a lower impact crater population than the surrounding surfaces. Color data show that this smooth unit is darker than the surrounding surfaces. A similar unit can be found on the floor of a complex cluster of 10-56 km diameter craters at 32 degrees N/40 degrees E. With upcoming higher resolution data we will refine our geologic map and will specifically investigate possible formation processes of these smooth units. JF - American Geophysical Union Fall Meeting AU - Hiesinger, Harald AU - Pasckert, Jan Hendrik AU - Williams, David A AU - Crown, David A AU - Mest, Scott C AU - Buczkowski, Debra AU - Schenk, Paul AU - Scully, Jennifer E C AU - Jaumann, Ralf AU - Roatsch, Thomas AU - Preusker, Frank AU - Platz, Thomas AU - Nathues, Andreas AU - Hoffmann, Martin AU - Marchi, Simone AU - De Sanctis, Maria Cristina AU - Russell, Christopher T AU - Raymond, Carol A AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53E EP - 2168 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298449?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Preliminary+geological+map+of+the+Ac-H-2+Coniraya+quadrangle+of+Ceres%3B+an+integrated+mapping+study+using+Dawn+spacecraft+data&rft.au=Hiesinger%2C+Harald%3BPasckert%2C+Jan+Hendrik%3BWilliams%2C+David+A%3BCrown%2C+David+A%3BMest%2C+Scott+C%3BBuczkowski%2C+Debra%3BSchenk%2C+Paul%3BScully%2C+Jennifer+E+C%3BJaumann%2C+Ralf%3BRoatsch%2C+Thomas%3BPreusker%2C+Frank%3BPlatz%2C+Thomas%3BNathues%2C+Andreas%3BHoffmann%2C+Martin%3BMarchi%2C+Simone%3BDe+Sanctis%2C+Maria+Cristina%3BRussell%2C+Christopher+T%3BRaymond%2C+Carol+A%3BAnonymous&rft.aulast=Hiesinger&rft.aufirst=Harald&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Regolith formation rates and evolution from the diviner lunar radiometer AN - 1849298445; 2016-105711 AB - Fragmentation and overturn of lunar surface materials produces a layer of regolith, which increases in thickness through time. Experiments on the lunar surface during the Apollo era, combined with remote sensing, found that the upper 10's of cm of regolith exhibit a rapid increase in density and thermal conductivity with depth. This is interpreted to be the signature of impact gardening, which operates most rapidly in the uppermost layers. Gravity data from the GRAIL mission showed that impacts have also extensively fractured the deeper crust. The breakdown and mixing of crustal materials is therefore a central process to lunar evolution and must be understood in order to interpret compositional information from remote sensing and sample analysis. Recently, thermal infrared data from the Lunar Reconnaissance Orbiter (LRO) Diviner radiometer were used to provide the first remote observational constraints on the rate of ejecta breakdown around craters < 1 Ga (Ghent et al., 2014). Here, we use nighttime regolith temperatures derived from Diviner data to constrain regolith thermal inertia, thickness, and spatial variability. Applied to models, these new data help improve understanding of regolith formation on a variety of geologic units. We will also discuss several anomalous features that merit further investigation. Reference: Ghent, R. R., Hayne, P. O., Bandfield, J. L., Campbell, B. A., Allen, C. C., Carter, L. M., & Paige, D. A. (2014). Constraints on the recent rate of lunar ejecta breakdown and implications for crater ages. Geology, 42(12), 1059-1062. JF - American Geophysical Union Fall Meeting AU - Hayne, Paul Ottinger AU - Ghent, Rebecca R AU - Bandfield, Joshua L AU - Vasavada, Ashwin R AU - Williams, Jean-Pierre AU - Siegler, Matthew A AU - Lucey, Paul G AU - Greenhagen, Benjamin T AU - Elder, Catherine M AU - Paige, David A AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P43F EP - 02 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298445?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Regolith+formation+rates+and+evolution+from+the+diviner+lunar+radiometer&rft.au=Hayne%2C+Paul+Ottinger%3BGhent%2C+Rebecca+R%3BBandfield%2C+Joshua+L%3BVasavada%2C+Ashwin+R%3BWilliams%2C+Jean-Pierre%3BSiegler%2C+Matthew+A%3BLucey%2C+Paul+G%3BGreenhagen%2C+Benjamin+T%3BElder%2C+Catherine+M%3BPaige%2C+David+A%3BAnonymous&rft.aulast=Hayne&rft.aufirst=Paul&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - RIS (super 4) E at Kilauea's December 1974 flow; lava flow texture LiDAR signatures AN - 1849298436; 2016-105693 AB - High-resolution point clouds and digital terrain models (DTMs) are used to investigate lava textures on the Big Island of Hawaii. Lava texture (e.g., 'a'a and pahoehoe) depends significantly on eruption conditions, and it is therefore instructive, if accurately determined. In places where field investigations are prohibitive (e.g., on other planets and remote regions of Earth) lava texture must be assessed from remote sensing data. A reliable method for doing so remains elusive. The December 1974 flow from Kilauea, in the Kau desert, presents an excellent field site to develop techniques for identifying lava texture. The eruption is young and the textures are well preserved. We present results comparing properties of lava textures observed in Terrestrial Laser Scanning (TLS) data. The authors collected the TLS data during May 2014 and June 2015 field seasons. Scans are a quantitative representation of what a geologist, or robotic system, sees "on the ground" and provides "ground truth" for airborne or orbital remote sensing analysis by enabling key parameters of lava morphology to be quantified. While individual scans have a heterogeneous point density, multiple scans are merged such that sub-cm lava textures can be quantified. Results indicate that TLS-derived surface roughness (i.e., de-trended RMS roughness) is useful for differentiating lava textures and assists volcanologic interpretations. As many lava types are quite rough, it is not simply roughness that is the most advantageous parameter for differentiating lava textures; rather co-occurrence patterns in surface roughness are used. Gradually forming textures (e.g., pahoehoe) are elevated in statistics that measure smoothness (e.g., homogeneity) while lava with disrupted crusts (e.g., slabby and platy flow) have more random distributions of roughness (i.e., high entropy). A similar technique will be used to analyze high-resolution DTMs of martian lava flows using High Resolution Imaging Science Experiment DTMs. This work will lead to faster and more reliable volcanic mapping efforts for planetary exploration as well as terrestrial geohazards. JF - American Geophysical Union Fall Meeting AU - Whelley, Patrick AU - Garry, William Brent AU - Scheidt, Stephen P AU - Bleacher, Jacob E AU - Hamilton, Christopher AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P31A EP - 2050 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298436?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=RIS+%28super+4%29+E+at+Kilauea%27s+December+1974+flow%3B+lava+flow+texture+LiDAR+signatures&rft.au=Whelley%2C+Patrick%3BGarry%2C+William+Brent%3BScheidt%2C+Stephen+P%3BBleacher%2C+Jacob+E%3BHamilton%2C+Christopher%3BAnonymous&rft.aulast=Whelley&rft.aufirst=Patrick&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - High-resolution bistatic radar imaging of near-Earth asteroids in 2015 using new capabilities of Goldstone and Green Bank telescopes AN - 1849298434; 2016-105905 AB - We present new results from bistatic Goldstone to Green Bank Telescope (GBT) high-resolution radar imaging of near-Earth asteroids (NEAs). Previously, most radar observations used either the 305-m Arecibo radar or the 70-m DSS-14 radar at Goldstone. Following the installation of new data-taking equipment at the GBT in late 2014, the number of bistatic Goldstone/GBT observations has increased substantially. Receiving Goldstone radar echoes at the 100-m GBT improves the signal-to-noise ratios (SNRs) two- to three-fold relative to monostatic reception at DSS-14. The higher SNRs allow us to obtain higher resolution images than is possible with DSS-14 both transmitting and receiving. Thus far in 2015, we have used the GBT receiver in combination with the 450 kW DSS-14 antenna and a new low-power 80 kW transmitter on the 34-m DSS-13 antenna at the Goldstone complex to image five and two NEAs respectively. Asteroids 2005 YQ96, 2004 BL86, and 1994 AW1 are binary systems. 2011 UW158 has a spin period of 36 minutes that is unusually fast among asteroids its size ( approximately 500 m). 1999 JD6 is a deeply bifurcated double-lobed object. 2015 HM10 is an elongated 80 m asteroid with a spin period of 22 minutes. Our best images of these objects resolve the surface with resolutions of 3.75 m and reveal numerous features. Such images are useful to estimate the 3D shape, spin state, and other physical and dynamical properties of the objects. This knowledge is of particular interest for spacecraft mission planning, impact threat assessment, and resource utilization. Over the long term, such observations will help answer fundamental questions regarding the origin of the diversity in asteroid morphologies, the importance of spin-up mechanisms and collisional influences, the interior structure and thermal properties of asteroids, and the variety of dynamical states. JF - American Geophysical Union Fall Meeting AU - Naidu, Shantanu AU - Benner, Lance AU - Brozovic, Marina AU - Giorgini, Jon D AU - Jao, Joseph S AU - Lee, Clement G AU - Busch, Michael AU - Ghigo, Frank D AU - Ford, Alyson AU - Kobelski, Adam AU - Marshall, Sean AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53G EP - 07 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298434?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=High-resolution+bistatic+radar+imaging+of+near-Earth+asteroids+in+2015+using+new+capabilities+of+Goldstone+and+Green+Bank+telescopes&rft.au=Naidu%2C+Shantanu%3BBenner%2C+Lance%3BBrozovic%2C+Marina%3BGiorgini%2C+Jon+D%3BJao%2C+Joseph+S%3BLee%2C+Clement+G%3BBusch%2C+Michael%3BGhigo%2C+Frank+D%3BFord%2C+Alyson%3BKobelski%2C+Adam%3BMarshall%2C+Sean%3BAnonymous&rft.aulast=Naidu&rft.aufirst=Shantanu&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Preliminary geological map of the Ac-H-13 Urvara quadrangle of Ceres; an integrated mapping study using dawn spacecraft data AN - 1849298423; 2016-105877 AB - We used geologic mapping applied to Dawn spacecraft data as a tool to understand the geologic history of the Ac-H-13 Urvara Quadrangle of dwarf planet Ceres. This region, located between 21 degrees S-66 degrees S and 180-270 degrees E, is dominated by the Urvara basin in the east and cratered plains in the west. The elevation of the cratered plains is intermediate between the identified "highland" and "lowland" units of Ceres. Plains in the SW corner of the quadrangle are hummocky and heavily cratered, while the NW corner is smoother and less densely cratered. Features of note include 1) the 200 km diameter Urvara basin, which includes a degraded northern rim and smooth interior and exterior material that hosts a significantly lower impact crater density than most of the rest of Ceres' surface; 2) semi-radial curvilinear structures extending to the east and west of Urvara; 3) two large-scale dome structures 10s of km in diameter exterior to Urvara; and 4) numerous small-scale domical structures (<12 km diameter) associated with the smooth material interior to the basin. Key goals of the ongoing mapping are to assess the types of resurfacing processes that might be responsible for producing the smooth units, and to assess the processes responsible for the development of large and small dome structures. At the time of this writing geologic mapping was performed on Framing Camera (FC) mosaics from the Approach (1.3 km/px) and Survey (415 m/px) orbits, including clear filter and color images and digital terrain models derived from stereo images. In Fall 2015 images from the High Altitude Mapping Orbit (140 m/px) will be used to refine the mapping, followed by Low Altitude Mapping Orbit (35 m/px) images starting in December 2015. Support of the Dawn Instrument, Operations, and Science Teams is acknowledged. This work is supported by grants from NASA, the Max Planck Society and from the German and Italian Space Agencies. JF - American Geophysical Union Fall Meeting AU - Williams, David A AU - Sizemore, Hanna G AU - Platz, Thomas AU - O'Brien, David P AU - Mest, Scott C AU - Yingst, R Aileen AU - Crown, David A AU - Buczkowski, Debra AU - Schenk, Paul AU - Scully, Jennifer E C AU - Jaumann, Ralf AU - Roatsch, Thomas AU - Preusker, Frank AU - Nathues, Andreas AU - De Sanctis, Maria Cristina AU - Russell, Christopher T AU - Raymond, Carol A AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53E EP - 2180 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298423?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Preliminary+geological+map+of+the+Ac-H-13+Urvara+quadrangle+of+Ceres%3B+an+integrated+mapping+study+using+dawn+spacecraft+data&rft.au=Williams%2C+David+A%3BSizemore%2C+Hanna+G%3BPlatz%2C+Thomas%3BO%27Brien%2C+David+P%3BMest%2C+Scott+C%3BYingst%2C+R+Aileen%3BCrown%2C+David+A%3BBuczkowski%2C+Debra%3BSchenk%2C+Paul%3BScully%2C+Jennifer+E+C%3BJaumann%2C+Ralf%3BRoatsch%2C+Thomas%3BPreusker%2C+Frank%3BNathues%2C+Andreas%3BDe+Sanctis%2C+Maria+Cristina%3BRussell%2C+Christopher+T%3BRaymond%2C+Carol+A%3BAnonymous&rft.aulast=Williams&rft.aufirst=David&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Understanding Europa's ice shell and subsurface water through terrestrial analogs for flyby radar sounding AN - 1849298421; 2016-105900 AB - The recently approved NASA mission to Europa proposes to study this ice-covered moon of Jupiter though a series of fly-by observations of its surface and subsurface from a spacecraft in Jovian orbit. The science goal of this mission is to "explore Europa to investigate its habitability". One of the primary instruments in the selected scientific payload is a multi-frequency, multi-channel ice penetrating radar system. The "Radar for Europa Assessment and Sounding: Ocean to Near-surface (REASON)" will play a critical role in achieving the mission's habitability driven science objectives, which include characterizing the distribution of any shallow subsurface water, searching for an ice-ocean interface and evaluating a spectrum of ice-ocean-atmosphere exchange hypotheses. The development of successful measurement and data interpretation techniques for exploring Europa will need to leverage knowledge of analogous terrestrial environments and processes. Towards this end, we will discuss a range of terrestrial radioglaciological analogs for hypothesized physical, chemical, and biological processes on Europa and present airborne data collected with the University of Texas dual-frequency radar system over a variety of terrestrial targets. These targets include water filled fractures, brine rich ice, water lenses, accreted marine ice, and ice surfaces with roughness ranging from firn to crevasse fields and will provide context for understanding and optimizing the observable signature of these processes in future radar data collected at Europa. JF - American Geophysical Union Fall Meeting AU - Blankenship, Donald D AU - Grima, Cyril AU - Young, Duncan A AU - Schroeder, Dustin M AU - Soderlund, Krista M AU - Gim, Young AU - Plaut, Jeffrey J AU - Patterson, Gerald AU - Moussessian, Alina AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53G EP - 02 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298421?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Europa%27s+ice+shell+and+subsurface+water+through+terrestrial+analogs+for+flyby+radar+sounding&rft.au=Blankenship%2C+Donald+D%3BGrima%2C+Cyril%3BYoung%2C+Duncan+A%3BSchroeder%2C+Dustin+M%3BSoderlund%2C+Krista+M%3BGim%2C+Young%3BPlaut%2C+Jeffrey+J%3BPatterson%2C+Gerald%3BMoussessian%2C+Alina%3BAnonymous&rft.aulast=Blankenship&rft.aufirst=Donald&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Possible albedo proton signature of hydrated lunar surface layer AN - 1849298306; 2016-105714 AB - We find evidence for a surface layer of hydrated material in the lunar regolith using "albedo protons" measured by the Cosmic Ray Telescope for the Effects of Radiation (CRaTER) on the Lunar Reconnaissance Orbiter (LRO). Fluxes of these albedo protons, which are emitted from the regolith due to steady bombardment by high-energy radiation (Galactic Cosmic Rays), are observed to peak near the poles, and cannot be accounted for by either heavy element enrichment (e.g., enhanced Fe abundance), or by deeply buried (> 50 cm) hydrogenous material. The latitudinal distribution of albedo protons does not correlate with that of epithermal or high-energy neutrons. The high latitude enhancement may be due to the conversion of upward directed secondary neutrons from the lunar regolith into tertiary protons due to neutron-proton collisions in a thin ( approximately 1-10 cm) layer of hydrated regolith near the surface that is more prevalent near the poles. The CRaTER instrument thus provides critical measurements of volatile distributions within lunar regolith and potentially, with similar sensors and observations, at other bodies within the Solar System. JF - American Geophysical Union Fall Meeting AU - Schwadron, Nathan AU - Wilson, Jody Keith AU - Looper, Mark Dixon AU - Jordan, Andrew P AU - Spence, Harlan E AU - Blake, J Bernard AU - Case, Anthony W AU - Iwata, Yoshi AU - Kasper, Justin Christophe AU - Farrell, William M AU - Lawrence, David J AU - Livadiotis, George AU - Mazur, Joseph E AU - Petro, Noah E AU - Pieters, Carle M AU - Robinson, Mark Southwick AU - Smith, Sonya S AU - Townsend, Lawrence W AU - Zeitlin, Cary J AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P43F EP - 05 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298306?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Possible+albedo+proton+signature+of+hydrated+lunar+surface+layer&rft.au=Schwadron%2C+Nathan%3BWilson%2C+Jody+Keith%3BLooper%2C+Mark+Dixon%3BJordan%2C+Andrew+P%3BSpence%2C+Harlan+E%3BBlake%2C+J+Bernard%3BCase%2C+Anthony+W%3BIwata%2C+Yoshi%3BKasper%2C+Justin+Christophe%3BFarrell%2C+William+M%3BLawrence%2C+David+J%3BLivadiotis%2C+George%3BMazur%2C+Joseph+E%3BPetro%2C+Noah+E%3BPieters%2C+Carle+M%3BRobinson%2C+Mark+Southwick%3BSmith%2C+Sonya+S%3BTownsend%2C+Lawrence+W%3BZeitlin%2C+Cary+J%3BAnonymous&rft.aulast=Schwadron&rft.aufirst=Nathan&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Ceres evolution; from thermodynamic modeling and now Dawn observation AN - 1849298303; 2016-105651 AB - Thermodynamic modeling indicated that Ceres has experienced planetary processes, including extensive melting of its approximately 25% water and differentiation, (McCord and Sotin, JGR, 2005; Castillo and McCord, Icarus, 2009). Early telescopic studies showed Ceres' surface to be spectrally similar to carbonaceous-chondrite-like material, i.e., aqueously altered silicates darkened by carbon, with a water-OH-related absorption near 3.06 mu m. Later observations improved the spectra and suggested more specific interpretations: Structural water in clay minerals, phyllosilicates, perhaps ammoniated, iron-rich clays, carbonates, brucite, all implying extensive aqueous alteration, perhaps in the presence of CO (sub 2) . Telescopic observations and thermodynamic models predicted Dawn would find a very different body compared to Vesta (e.g. McCord et al., SSR, 2011), as current Dawn observations are confirming. Ceres' original water ice should have melted early in its evolution, with the resulting differentiation and mineralization strongly affecting Ceres' composition, size and shape over time. The ocean should have become very salty and perhaps may still be liquid in places. The surface composition from telescopes seems to reflect this complex history. The mineralization with repeated mixing of the crust with the early liquid interior and with in-fall from space would create a complex surface that will present an interpretation challenge for Dawn. The Dawn spacecraft is currently collecting observations of Ceres' landforms, elemental and mineralogical/molecular composition and gravity field from orbit. Early results suggest a heavily cratered but distorted and lumpy body with features and composition consistent with internal activity, perhaps recent or current, associated with water and perhaps other volatiles. We will present and interpret the latest Dawn Ceres findings and how they affect our earlier understanding of Ceres evolution from modeling and telescope observations. JF - American Geophysical Union Fall Meeting AU - McCord, Thomas B AU - Combe, Jean-Philippe AU - Castillo, Julie C AU - Raymond, Carol A AU - De Sanctis, Maria Cristina AU - Jaumann, Ralf AU - Ammannito, Eleonora AU - Russell, Christopher T AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P23D EP - 01 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298303?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Ceres+evolution%3B+from+thermodynamic+modeling+and+now+Dawn+observation&rft.au=McCord%2C+Thomas+B%3BCombe%2C+Jean-Philippe%3BCastillo%2C+Julie+C%3BRaymond%2C+Carol+A%3BDe+Sanctis%2C+Maria+Cristina%3BJaumann%2C+Ralf%3BAmmannito%2C+Eleonora%3BRussell%2C+Christopher+T%3BAnonymous&rft.aulast=McCord&rft.aufirst=Thomas&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Probing the lunar polar crust with GRAIL gravity AN - 1849298296; 2016-105815 AB - The lunar polar crust, from latitude + or -80 degrees to the pole, exhibits Bouguer gravity anomalies that result from crustal density variations of order + or -45 mGal in the south and + or -25 mGal in the north, bandpass filtered to wavelengths representing the top 50 km. Evident in the Bouguer gravity at both poles are the signatures of a few large craters and basins. But at both poles, the Bouguer map also displays a large number of small, rather sinuous features, some outlining crater rims and some structures on crater floors, that are distributed more or less uniformly across the region. The root mean square (rms) variation over the 10 degrees radius cap is less than 11 mGals at the south pole and less than 7 mGals in the north. This difference reflects the greater crustal complexity in the south compared to the north, but these magnitudes are approximately 10% of the total field in the polar regions, indicating that substantial density anomalies exist below 50 km depth. Modeling the crustal anomalies in the top 50 km by density contrasts at various depths suggest the rms magnitudes can be explained by small local variations in porosity, or possibly the presence of H (sub 2) O at concentrations of a few percent. The required concentration increases with depth for a given volume but the possibility that the source of the polar anomalies includes small concentrations of H (sub 2) O in the crust, however, cannot be ruled out. JF - American Geophysical Union Fall Meeting AU - Smith, David E AU - Zuber, Maria T AU - Goossens, Sander J AU - Rowlands, David D AU - Neumann, Gregory A AU - Mazarico, Erwan M AU - Genova, Antonio AU - Lemoine, Frank G AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53B EP - 2113 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298296?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Probing+the+lunar+polar+crust+with+GRAIL+gravity&rft.au=Smith%2C+David+E%3BZuber%2C+Maria+T%3BGoossens%2C+Sander+J%3BRowlands%2C+David+D%3BNeumann%2C+Gregory+A%3BMazarico%2C+Erwan+M%3BGenova%2C+Antonio%3BLemoine%2C+Frank+G%3BAnonymous&rft.aulast=Smith&rft.aufirst=David&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Tholins as coloring agents on Pluto AN - 1849298293; 2016-105746 AB - The shape of the reflectance spectrum of Pluto recorded with telescopes, 0.3-1.0 mu m, shows the planet's yellow-red color (1). Additionally, multi-filter images of Pluto with the MVIC camera on the New Horizons spacecraft report concentrations of the coloring agent(s) in some regions of the surface, and apparent near absence in other regions. Tholins are refractory organic solids of complex structure and high molecular weight, with a wide range of color ranging from yellow and orange to dark red, and through tan to black. They are readily synthesized in the laboratory by energetic processing of mixtures of the ices (N (sub 2) , CH (sub 4) , CO) known on Pluto's surface (2), or the same molecules in the gas phase (3). Energy in the form of UV light, electrons, protons, or coronal discharge are all effective to one degree or another in producing various types of tholins; details of the composition and yield vary with experimental conditions. Chemical analysis of ice tholins shows carboxylic acids, urea, and HCN and other nitriles. Aromatic/olefinic, amide, and other functional groups are identified in XANES analysis (4). The ice tholins produce by e- irradiation have a higher concentration of N than UV ice tholins, with N/C approximately 0.9 (versus approximately 0.5 for UV tholins) and O/C approximately 0.2. EUV photolysis of Pluto atmosphere analog yields pale yellow solids relatively transparent in the visual, and with aliphatic CH bonds prominent in IR spectra. This material may be responsible for Pluto's hazes (5). Various tholins are the principal coloring agents on Pluto's surface, probably Charon's colored region, and on numerous other outer Solar System bodies (6). Refs: 1. Cruikshank, D. P. et al. 2014 DPS abstract #419.04; 2. Cruikshank et al. 2015 Icarus 246, 82; 3. Krasnopolsky & Cruikshank 1999 JGR 104 E9, 21,979; 4. Materese, C. K. et al. 2014 Ap.J. 788:111, June 20; 5. Imanaka, H. et al. 2014 DPS abstract #419.10; 6. Cruikshank, D. P. et al. 2005 Adv. Space Res. 36, 178. JF - American Geophysical Union Fall Meeting AU - Cruikshank, Dale P AU - Materese, Christopher K AU - Imanaka, Hiroshi AU - Dalle Ore, Cristina AU - Sandford, Scott A AU - Nuevo, Michel AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P51A EP - 2043 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298293?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Tholins+as+coloring+agents+on+Pluto&rft.au=Cruikshank%2C+Dale+P%3BMaterese%2C+Christopher+K%3BImanaka%2C+Hiroshi%3BDalle+Ore%2C+Cristina%3BSandford%2C+Scott+A%3BNuevo%2C+Michel%3BAnonymous&rft.aulast=Cruikshank&rft.aufirst=Dale&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Evidence for acid-sulfate alteration in the Pahrump Hills region, Gale Crater, Mars AN - 1849298282; 2016-105894 AB - The Pahrump Hills region of Gale crater is a approximately 12 m thick section of sedimentary rock in the Murray formation, interpreted as the basal geological unit of Mount Sharp. The Mars Science Laboratory, Curiosity, arrived at the Pahrump Hills in September 2014 and performed a detailed six-month investigation of the sedimentary structures, geochemistry, and mineralogy of the area. During the campaign, Curiosity drilled and delivered three mudstone samples (targets Confidence Hills, Mojave 2, and Telegraph Peak) to its internal instruments, including the CheMin XRD/XRF. Results from CheMin show that these samples have variable amounts of plagioclase, pyroxene, iron oxides, jarosite, phyllosilicates, cristobalite, and X-ray amorphous material. The presence of jarosite in all samples indicates these rocks were affected by acid-sulfate alteration, and the mineralogical and geochemical trends observed through the section may give more insight into this process. Geochemical data measured by PXS show enrichment in Si and depletion in Mg moving up section. CheMin data show that cristobalite is more abundant up section, whereas pyroxene and phyllosilicates are more abundant at the bottom of the section. Based on mineralogical and geochemical trends and diagenetic features observed in the Pahrump Hills, we hypothesize that the sediments were altered in-situ by acid-sulfate fluids moving down from the top of the section to leach mobile elements, dissolve the minerals most susceptible to acidic alteration, and precipitate secondary silica at the top of the section. Alternative interpretations of the observed mineralogical and geochemical data are possible, including the hypothesis that the redox conditions of the body of water in which the sediments were deposited changed over time. JF - American Geophysical Union Fall Meeting AU - Rampe, Elizabeth B AU - Ming, Douglas W AU - Vaniman, David T AU - Blake, David Frederick AU - Chipera, Steve AU - Morris, Richard V AU - Bish, David L AU - Cavanagh, Patrick AU - Achilles, Cherie AU - Bristow, Thomas AU - Fairen, Alberto G AU - Morrison, Shaunna M AU - Treiman, Allan H AU - Crisp, Joy A AU - Downs, Robert T AU - Farmer, Jack D AU - Fendrich, Kim AU - Morookian, John AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53F EP - 04 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298282?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Evidence+for+acid-sulfate+alteration+in+the+Pahrump+Hills+region%2C+Gale+Crater%2C+Mars&rft.au=Rampe%2C+Elizabeth+B%3BMing%2C+Douglas+W%3BVaniman%2C+David+T%3BBlake%2C+David+Frederick%3BChipera%2C+Steve%3BMorris%2C+Richard+V%3BBish%2C+David+L%3BCavanagh%2C+Patrick%3BAchilles%2C+Cherie%3BBristow%2C+Thomas%3BFairen%2C+Alberto+G%3BMorrison%2C+Shaunna+M%3BTreiman%2C+Allan+H%3BCrisp%2C+Joy+A%3BDowns%2C+Robert+T%3BFarmer%2C+Jack+D%3BFendrich%2C+Kim%3BMorookian%2C+John%3BAnonymous&rft.aulast=Rampe&rft.aufirst=Elizabeth&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Laboratory measurements of micrometeoroid impacts into solid ice and gas ablation targets AN - 1849298279; 2016-105721 AB - The dust accelerator facility at the SSERVI Institute for Modeling Plasma, Atmospheres, and Cosmic Dust (IMPACT) has recently implemented two major target upgrades: a cryogenic ice target and a high-pressure gas target. Each target can be exposed to micron and submicron particles accelerated to speeds up to 100 km/s. The ice target consists of a LN (sub 2) cryogenic system connected to both a water-ice deposition system and a movable freezer/holder for a pre-mixed liquid cartridge. Impact products and chemistry are assessed with an integrated time-of-flight mass spectrometer. Such a system enables a program of research into the evolution of ice under micrometeoroid bombardment and the synthesis of complex organic molecules through micrometeoroid impacts. We present the early results from studies of hypervelocity iron particle impacts into frozen mixtures of H (sub 2) O, NH (sub 3) , and olivine grains which contain nanophase Fe, a possible catalyst for organic chemical reactions, under conditions of low-pressure background CO or CO (sub 2) gas. The gas target consists of a differentially pumped chamber kept at pressures up to 0.5 Torr, such that high-velocity ( approximately 10-60 km/s) micrometeoroids are completely ablated within the 40 cm long measurement region. The chamber is configured with segmented electrodes to perform temporally- and spatially-resolved measurements of charge production during ablation, and localized light-collection optics enable an assessment of the light production. We present the latest results of experiments to determine the ionization efficiency of Fe particles ablating in N (sub 2) , air, CO (sub 2) , and He gas, and modifications to standard ablation models made possible from these experimental results. Such studies are critical for the interpretation of remote sensing measurements, including radar and lidar, which in turn make possible the assessment of the interplanetary dust particle flux. JF - American Geophysical Union Fall Meeting AU - Munsat, Tobin L AU - Britt, Daniel Turner AU - Dee, Richard AU - Gudipati, Murthy S AU - Horanyi, Mihaly AU - James, David AU - Janches, Diego AU - Kempf, Sascha AU - Nelson, Andrew O AU - Plane, John M C AU - Shu, Anthony J AU - Sternovsky, Zoltan AU - Thomas, Evan AU - Ulibarri, Zachary AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P44A EP - 04 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298279?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+measurements+of+micrometeoroid+impacts+into+solid+ice+and+gas+ablation+targets&rft.au=Munsat%2C+Tobin+L%3BBritt%2C+Daniel+Turner%3BDee%2C+Richard%3BGudipati%2C+Murthy+S%3BHoranyi%2C+Mihaly%3BJames%2C+David%3BJanches%2C+Diego%3BKempf%2C+Sascha%3BNelson%2C+Andrew+O%3BPlane%2C+John+M+C%3BShu%2C+Anthony+J%3BSternovsky%2C+Zoltan%3BThomas%2C+Evan%3BUlibarri%2C+Zachary%3BAnonymous&rft.aulast=Munsat&rft.aufirst=Tobin&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Analysis of volcanic deposits on Venus using radar polarimetry AN - 1849298276; 2016-105755 AB - The atmosphere of Venus is relatively transparent at radio wavelengths, providing an opportunity to examine its volcanic planetary surface using radar. The highest resolution radar images come from the Magellan mission, which mapped 98% of Venus's surface by transmitting and receiving unidirectionally polarized radio waves. Upgrades to the ground-based Arecibo telescope in 1999 allowed further imaging of the surface of Venus at conjunction in 1999, 2001, and 2004 by the transmission of a circularly polarized beam at 12.6 cm wavelength and then the reception of two orthogonal circular polarization components [Carter et al., 2006]. We apply the Stokes vector method to the Arecibo measurements to calculate the circular polarization ratio (CPR), an indication of surface roughness, and the degree of linear polarization (DLP), a measure of whether there is subsurface scattering of the radar wave. We combine both the CPR and DLP datasets to enable a more holistic geologic interpretation of Magellan images. This allows us to examine geographic variations in high-altitude, high-emissivity regions such Beta Regio, and to investigate regions that may contain young lava flows such as Themis Regio. Our approach permits a more precise geologic mapping of the textures of coronas and lava flow fields, including the identification of abnormally rugged lava flows. The data were also used to search for pyroclastics emanating from large and intermediate sized volcanoes within the region visible to Arecibo. JF - American Geophysical Union Fall Meeting AU - Douglas, Madison AU - Carter, Lynn M AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P51C EP - 2068 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298276?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+volcanic+deposits+on+Venus+using+radar+polarimetry&rft.au=Douglas%2C+Madison%3BCarter%2C+Lynn+M%3BAnonymous&rft.aulast=Douglas&rft.aufirst=Madison&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Inferno Chasm rift zone, Idaho; a terrestrial analog for plains-style volcanism in southeastern Mare Serenitatis on the Moon AN - 1849298275; 2016-105841 AB - Volcanic features aligned along a linear graben in southeastern Mare Serenitatis (19 degrees N, 27.5 degrees E) on the Moon resemble a series of effusive basaltic landforms erupted along the Inferno Chasm rift zone within Craters of the Moon National Monument and Preserve (COTM), Idaho (42 degrees 58'00"N, 113 degrees 11'25"W). This region in Idaho is the type-locale for terrestrial plains-style volcanism. Examples of lunar plains-style volcanism have previously been described within Orientale Basin at Lacus Veris and Lacus Autumni, but this eruption style has not been used to describe the site in Mare Serenitatis. The SSERVI FINESSE team (Field Investigations to Enable Solar System Science and Exploration) has documented the features along Inferno Chasm rift using a LiDAR, Differential Global Positioning Systems, and Unmanned Aerial Vehicles (UAV) to compare with Lunar Reconnaissance Orbiter Narrow-Angle Camera images and digital terrain models. The region in southeastern Mare Serenitatis provides one of the best concentrations of features representative of lunar plains-style volcanism. On the Moon, these features include a cone (Osiris), a flat-topped dome, a rille-like channel (Isis), a vent, and a possible perched lava pond. In Idaho, the analog features include a dome (Grand View Crater), a rille-like channel (Inferno Chasm), vents (Cottrells Blowout, Horse Butte), and a perched lava pond (Papadakis). Both the scale and morphology of the features on the Moon are similar to the features in Idaho. For example, the channel in Isis is approximately 3 km long, 283 m-wide, and 25 m deep compared to Inferno Chasm which is approximately 1.7 km long, 100 m wide, and 20 m deep. The slope of the channel in Isis is -1.2 degrees , while the channel in Inferno Chasm has a slope of -0.33 degrees . The alignment of landforms on the Moon and Idaho are both consistent with dike emplacement. Observations of the flow stratigraphy for features in Idaho will inform the potential eruption conditions of the individual features on the Moon. JF - American Geophysical Union Fall Meeting AU - Garry, William Brent AU - Hughes, Scott S AU - Kobs-Nawotniak, Shannon E AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53C EP - 2144 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298275?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Inferno+Chasm+rift+zone%2C+Idaho%3B+a+terrestrial+analog+for+plains-style+volcanism+in+southeastern+Mare+Serenitatis+on+the+Moon&rft.au=Garry%2C+William+Brent%3BHughes%2C+Scott+S%3BKobs-Nawotniak%2C+Shannon+E%3BAnonymous&rft.aulast=Garry&rft.aufirst=William&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Convection in solid nitrogen and other supervolatile ices on Pluto AN - 1849298272; 2016-105744 AB - N (sub 2) , CO, and CH (sub 4) ices are all very weak, van der Waals bonded molecular solids. As such they are not expected to be able to support appreciable surface topography over any great length of geologic time, even at the surface conditions of bodies such as Pluto or Triton (J.M. Moore et al., Geology before Pluto: Pre-encounter considerations, Icarus 246, 65-81, 2015). Nitrogen ice, the most volatile of these, is the volumetrically dominant ice in the optically active surface of Pluto and may exist in more substantive, massive accumulations as well. We examine the possibility of convective overturn in surface layers of nitrogen and other "supervolatile" ices on Pluto, based on the best available rheologies. The characteristics of such convection may differ from those observed or expected on the terrestrial planets and icy satellites. We will discuss whether these characteristics possess any explanatory power for Pluto. JF - American Geophysical Union Fall Meeting AU - McKinnon, William B AU - Nimmo, Francis AU - Umurhan, Orkan M AU - Wong, Teresa AU - Roberts, James H AU - Stern, Alan AU - Weaver, Harold A, Jr AU - Spencer, John R AU - Moore, Jeffrey M AU - Schenk, Paul AU - Olkin, Catherine AU - Young, Leslie Ann AU - Ennico Smith, Kimberly AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P51A EP - 2041 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298272?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Convection+in+solid+nitrogen+and+other+supervolatile+ices+on+Pluto&rft.au=McKinnon%2C+William+B%3BNimmo%2C+Francis%3BUmurhan%2C+Orkan+M%3BWong%2C+Teresa%3BRoberts%2C+James+H%3BStern%2C+Alan%3BWeaver%2C+Harold+A%2C+Jr%3BSpencer%2C+John+R%3BMoore%2C+Jeffrey+M%3BSchenk%2C+Paul%3BOlkin%2C+Catherine%3BYoung%2C+Leslie+Ann%3BEnnico+Smith%2C+Kimberly%3BAnonymous&rft.aulast=McKinnon&rft.aufirst=William&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Resource prospector; a lunar volatiles prospecting and ISRU demonstration mission AN - 1849298269; 2016-105845 AB - A variety of recent observations have indicated several possible reservoirs of water and other volatiles. These volatiles, and in particular water, have the potential to be a valuable or enabling resource for future exploration. NASA's Human Exploration and Operations Mission Directorate (HEOMD) Advanced Exploration Systems (AES) is supporting the development of Resource Prospector (RP) to explore the distribution and concentration of lunar volatiles prospecting and to demonstrate In-Situ Resource Utilization (ISRU). The mission includes a NASA developed rover and payload, and a lander will most likely be a contributed element by an international partner or the Lunar Cargo Transportation and Landing by Soft Touchdown (CATALYST) initiative. The RP payload is designed to: (1) locate near-subsurface volatiles, (2) excavate and analyze samples of the volatile-bearing regolith, and (3) demonstrate the form, extractability and usefulness of the materials. RP is being designed with thought given to its extensibility to resource prospecting and ISRU on other airless bodies and Mars. This presentation will describe the Resource Prospector mission, the payload and measurements, and concept of operations JF - American Geophysical Union Fall Meeting AU - Colaprete, Anthony AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53C EP - 2148 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298269?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Resource+prospector%3B+a+lunar+volatiles+prospecting+and+ISRU+demonstration+mission&rft.au=Colaprete%2C+Anthony%3BAnonymous&rft.aulast=Colaprete&rft.aufirst=Anthony&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Preliminary geological map of the Ac-H-14 Yalode quadrangle of Ceres; an integrated mapping study using dawn spacecraft data AN - 1849298260; 2016-105878 AB - We are conducting a geologic mapping investigation of the Ac-H-14 Yalode Quadrangle (21-66 degrees S, 270-360 degrees E) of Ceres to examine its surface geology and geologic history. At the time of this writing, geologic mapping has been performed on Dawn Framing Camera (FC) mosaics from the late Approach phase (up to 1.3 km/px) and Survey orbit (415 m/px), including clear filter and color images and digital terrain models derived from stereo images. In Fall 2015 images from the High Altitude Mapping Orbit (140 m/px) will be used to refine the mapping, followed by the Low Altitude Mapping Orbit (35 m/px) starting in December 2015. The Yalode Quadrangle is dominated by the approximately 300-km diameter impact basin Yalode and includes rugged and smooth terrains to the east. Yalode basin has a variably preserved rim, which is continuous and sharply defined to the north/northwest and is irregular or degraded elsewhere, and may have an interior ring structure. The basin floor includes hummocky and smooth areas (some bounded by scarps), crater chains, and a lineated zone. High-resolution images will be used to search for volcanic features on the basin floor and in association with basin structures. Yalode basin and its floor deposits appear to have been strongly affected by the Urvara impact to the west. Impact craters in Yalode Quadrangle display a range of preservation states. Degraded features, including Yalode basin and numerous smaller craters, exhibit subdued rims, lack discrete ejecta deposits, and have infilled interiors. More pristine features (including the large unnamed basin in the SE corner of the quadrangle and craters on Yalode basin floor) have well-defined, quasi-circular forms with prominent rims and in some cases discernible ejecta. Some of these craters have bowl-shaped interiors and others contain hills or mounds on their floors. Support of the Dawn Instrument, Operations, and Science Teams is acknowledged. This work is supported by grants from NASA, MPG, and DLR. JF - American Geophysical Union Fall Meeting AU - Crown, David A AU - Yingst, R Aileen AU - Mest, Scott C AU - Platz, Thomas AU - Williams, David A AU - Buczkowski, Debra AU - Schenk, Paul AU - Scully, Jennifer E C AU - Jaumann, Ralf AU - Roatsch, Thomas AU - Preusker, Frank AU - Nathues, Andreas AU - Hoffmann, Martin AU - Schaefer, Michael AU - Marchi, Simone AU - De Sanctis, Maria Cristina AU - Russell, Christopher AU - Raymond, Carol A AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53E EP - 2181 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298260?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Preliminary+geological+map+of+the+Ac-H-14+Yalode+quadrangle+of+Ceres%3B+an+integrated+mapping+study+using+dawn+spacecraft+data&rft.au=Crown%2C+David+A%3BYingst%2C+R+Aileen%3BMest%2C+Scott+C%3BPlatz%2C+Thomas%3BWilliams%2C+David+A%3BBuczkowski%2C+Debra%3BSchenk%2C+Paul%3BScully%2C+Jennifer+E+C%3BJaumann%2C+Ralf%3BRoatsch%2C+Thomas%3BPreusker%2C+Frank%3BNathues%2C+Andreas%3BHoffmann%2C+Martin%3BSchaefer%2C+Michael%3BMarchi%2C+Simone%3BDe+Sanctis%2C+Maria+Cristina%3BRussell%2C+Christopher%3BRaymond%2C+Carol+A%3BAnonymous&rft.aulast=Crown&rft.aufirst=David&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - The coupled Mars dust and water cycles; understanding how clouds affect the vertical distribution and meridional transport of dust and water AN - 1849298253; 2016-105620 AB - The dust and water cycles are crucial to the current Martian climate, and they are coupled through cloud formation. Dust strongly impacts the thermal structure of the atmosphere and thus greatly affects atmospheric circulation, while clouds provide radiative forcing and control the hemispheric exchange of water through the modification of the vertical distributions of water and dust. Recent improvements in the quality and sophistication of both observations and climate models allow for a more comprehensive understanding of how the interaction between the dust and water cycles (through cloud formation) affects the dust and water cycles individually. We focus here on the effects of clouds on the vertical distribution of dust and water, and how those vertical distributions control the net meridional transport of water. For this study, we utilize observations of temperature, dust and water ice from the Mars Climate Sounder (MCS) on the Mars Reconnaissance Orbiter (MRO) combined with the NASA ARC Mars Global Climate Model (MGCM). We demonstrate that the magnitude and nature of the net meridional transport of water between the northern and southern hemispheres during NH summer is sensitive to the vertical structure of the simulated aphelion cloud belt. We further examine how clouds influence the atmospheric thermal structure and thus the vertical structure of the cloud belt. Our goal is to identify and understand the importance of radiative/dynamic feedbacks due to the physical processes involved with cloud formation and evolution on the current climate of Mars. JF - American Geophysical Union Fall Meeting AU - Kahre, Melinda A AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P21C EP - 07 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298253?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+coupled+Mars+dust+and+water+cycles%3B+understanding+how+clouds+affect+the+vertical+distribution+and+meridional+transport+of+dust+and+water&rft.au=Kahre%2C+Melinda+A%3BAnonymous&rft.aulast=Kahre&rft.aufirst=Melinda&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Fresh shallow valleys in northern Arabia Terra; evidence for a late, widespread period of aqueous activity on Mars AN - 1849298248; 2016-105851 AB - Concentrations of fresh shallow valleys (FSVs) on Mars occur between approximately 30-45 degrees in both hemispheres as well as near the equator (e.g., Gale crater and vicinity). FSVs in the northern hemisphere occur along the dichotomy boundary, with the highest concentration in northern Arabia Terra from 35-40 degrees N between 0-20 degrees E. In this region, FSVs developed both on and away from ejecta of relatively fresh craters, making the direct association between impact processes and formation less likely. Crater statistics and cross-cutting relationships indicate the formation of FSVs terminated prior to about 1.4 Ga, suggesting they may be contemporaneous with alluvial fan and delta formation in the equatorial and mid-latitudes. Many FSV systems are 150+ km long, and in several cases appear to cross depressions that were likely filled with ice or water during FSV formation. Most FSV systems could have formed from a single episode of erosion but incision of the main channel in some locations may imply episodic formation. One long valley system in N. Arabia Terra with an incised channel (100 m wide, up to 10 m deep) yields formative discharges in the range of 100-200 m3/s assuming sand sized particles and a flow depth of 0.25 m, consistent with formation via snowmelt. The grain size is unknown, therefore discharges could range from 10s m3/s for active transport of fine sand to 1000 m3/s for gravel sized grains. Approximately 25 small craters (diameters ranging from approximately 2-10 km) have single channels extending outward from their rim, implying overflow of the crater and the possible presence of a deep lake. Widespread occurrence of FSVs, their similar morphology, and modest state of degradation is consistent with most forming during one or more global intervals of favorable climate, likely through snowmelt from surface or sub-ice flows during the Hesperian. JF - American Geophysical Union Fall Meeting AU - Wilson, Sharon A AU - Howard, Alan D AU - Moore, Jeff M AU - Grant, John A, III AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P53D EP - 2154 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298248?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Fresh+shallow+valleys+in+northern+Arabia+Terra%3B+evidence+for+a+late%2C+widespread+period+of+aqueous+activity+on+Mars&rft.au=Wilson%2C+Sharon+A%3BHoward%2C+Alan+D%3BMoore%2C+Jeff+M%3BGrant%2C+John+A%2C+III%3BAnonymous&rft.aulast=Wilson&rft.aufirst=Sharon&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Wright Valley sediments as potential analogs for Martian surface processes AN - 1849298164; 2016-105659 AB - The Antarctic Dry Valleys (ADV) may provide a unique terrestrial analog for current Martian surface processes. The Wright Valley located in the ADV contains streams, lakes and ponds that host highly saline, sedimentary environments. This project highlights comparisons of formation and salt accumulation processes at the Don Juan Pond (DJP) and Don Quixote Pond (DQP). These are located in the north and south forks of the Wright Valley, which are unique areas where unusual terrestrial processes can be studied. DQP is located in the western part of the north fork about 100 m above mean seawater level. The DQP Valley walls are up to 2500 m high and the brine is seasonally frozen. DJP from the south fork is located approximately 9 km west of Lake Vanda. The basin floor is 117 m above mean seawater level with activity to the north and south rising above 1000 m. The DJP brine does not freeze and may be a model environment for Ca and Cl weathering and distribution on Mars. Our findings indicate that DJP and DQP have formed in similar climatic and geological environments, but likely experienced different formation conditions. Samples were collected from surface, soil pits and depth profiles during the 1979/1980, the 1990/1991 and the 2005/2006 field seasons. Elemental abundances and mineralogy were evaluated for several sets of sediments. The DJP basin shows low surface abundances of halite and relatively high abundances of sulfates throughout with gypsum or anhydrite dominating at different locations. The DQP area has high surface abundances of halite with gypsum present as the major sulfate. Two models have been proposed to explain these differences: DQP may have formed through a combination of shallow and some deep groundwater influx, while deep groundwater upwelling likely played the dominant role of salt formation at DJP. Our study seeks to understand the formation of DQP and DJP as unique terrestrial processes and as models for Ca, Cl, and S weathering and distribution on Mars. JF - American Geophysical Union Fall Meeting AU - Englert, Peter A J AU - Bishop, Janice L AU - Patel, Shital AU - Gibson, Everett K AU - Koeberl, Christian AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P24A EP - 03 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298164?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Wright+Valley+sediments+as+potential+analogs+for+Martian+surface+processes&rft.au=Englert%2C+Peter+A+J%3BBishop%2C+Janice+L%3BPatel%2C+Shital%3BGibson%2C+Everett+K%3BKoeberl%2C+Christian%3BAnonymous&rft.aulast=Englert&rft.aufirst=Peter+A&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Monitoring of anomalous water distribution by DAN/MSL during first U-turn observational campaign at Marias Pass area in Gale Crater AN - 1849298143; 2016-105778 AB - Active neutron spectrometer DAN operates onboard Curiosity rover since its landing in August 2012 and performs measurements of subsurface water distribution along rover's traverse both in passive (monitoring of bulk content of bound water during rover driving) and active (detailed observations of water depth distribution at the selected rover stops) modes. On sol 991 continuing its approach to the main strategic target at Aeolis Mons/Gale crater, Curiosity entered in Marias Pass area where DAN observations both in passive and active mode have discovered highest concentration of bound water (>6.5% in average) ever observed during Curiosity surface operations. At the same time ChemCam instrument identified in this area a bright rock unit (named as Elk target) belonging to Murray formation with abnormally high concentration of SiO (sub 2) (>75%) and TiO (sub 2) (>3%). Post drive analysis of ChemCam and DAN observations performed in Marias Pass area during 991-997 sols inspired Curiosity Science team to make rover's U-turn and return to the vicinity of Elk target for the detailed investigation of subsurface water distribution and search for rock units similar in elemental composition with Elk target. During this campaign moving with 2-3 m intervals DAN found another several locations with high concentration of subsurface water and ChemCam identified numerous targets with Elk similar composition. These observations have been also supported with contact measurements provided with APXS instrument, which also confirmed high (>70%) silica concentration. Based on the gathered data several hypotheses explaining formation of this area where proposed and possible locations for the next round of drilling and sampling operations where discussed. JF - American Geophysical Union Fall Meeting AU - Litvak, Maxim L AU - Mitrofanov, Igor G AU - Sanin, Anton B AU - Hardgrove, Craig J AU - Boynton, William V AU - Harshman, Karl AU - Jun, Insoo AU - Lisov, Denis AU - Milliken, Ralph AU - Mischna, Michael A AU - Moersch, Jeffrey AU - Tate, Christopher Gayle AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P51D EP - 08 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1849298143?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+of+anomalous+water+distribution+by+DAN%2FMSL+during+first+U-turn+observational+campaign+at+Marias+Pass+area+in+Gale+Crater&rft.au=Litvak%2C+Maxim+L%3BMitrofanov%2C+Igor+G%3BSanin%2C+Anton+B%3BHardgrove%2C+Craig+J%3BBoynton%2C+William+V%3BHarshman%2C+Karl%3BJun%2C+Insoo%3BLisov%2C+Denis%3BMilliken%2C+Ralph%3BMischna%2C+Michael+A%3BMoersch%2C+Jeffrey%3BTate%2C+Christopher+Gayle%3BAnonymous&rft.aulast=Litvak&rft.aufirst=Maxim&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-12-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Signature of Europa's ocean density on gravity data AN - 1844922324; 2016-100879 AB - Observations by the Galileo mission at Europa and Cassini-Huygens mission at Europa, Ganymede, Callisto, Enceladus, and Titan have found deep oceans at these objects with evidence for the presence of salts. Salt compounds are the products of aqueous alteration of the rock phase under hydrothermal conditions and have been predicted theoretically for these objects per analogy with carbonaceous chondrite parent bodies. Evidence for salt enrichment comes from magnetometer measurements (Galilean satellites), direct detection in the case of Enceladus, and inversion of the gravity data obtained at Titan. While there is direct detection for the presence of chlorides in icy grains ejected from Enceladus, the chemistry of the oceans detected so far, or even their densities, remain mostly unconstrained. However the increased ocean density impacts the interpretation of the tidal Love number k2 and this may introduce confusion in the inference of the icy shell thickness from that parameter. We will present estimates of k2 for a range of assumptions on Europa's hydrospheric structure that build on geophysical observations obtained by the Galileo mission combined with new models of Europa's interior. These models keep track of the compositions of the hydrated core and oceanic composition in a self-consistent manner. We will also estimate the electrical conductivity corresponding to the modeled oceanic composition. Finally we will explore how combining electromagnetic, topographic, and gravity data can decouple the signatures of the shell thickness and ocean composition on these geophysical observations. JF - American Geophysical Union Fall Meeting AU - Castillo, Julie C AU - Rambaux, Nicolas AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P11C EP - 2109 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844922324?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Signature+of+Europa%27s+ocean+density+on+gravity+data&rft.au=Castillo%2C+Julie+C%3BRambaux%2C+Nicolas%3BAnonymous&rft.aulast=Castillo&rft.aufirst=Julie&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - Enceladus life finder; search for life in a habitable Moon AN - 1844922302; 2016-100893 AB - A thousand times smaller in mass than Ganymede, Enceladus was known from Voyager data to be extremely bright and a dearth of craters on some parts of its surface suggested geologic activity. Cassini discovered the presence and composition of a plume erupting from the south polar terrain of Enceladus, approximately 100 narrow, distinct "geysers" or "jets" that feed it, and anomalous thermal signatures along fractures from which the geysers erupt. Cassini discovered organic and nitrogen-bearing molecules in the plume vapor, and detected salts in the plume icy grains, arguing strongly for ocean water being in contact with a rocky core. As much as Cassini has done, it cannot tell us whether the ocean of Enceladus hosts an active biota today. Enceladus Life Finder (ELF) is a Discovery-class solar-powered Saturn orbiter designed to fly multiple times through the plume of Enceladus. It carries two state-of-the-art mass spectrometers designed to analyze the gas and grains in the plume. The goals of the mission are derived directly from the most recent decadal survey: first, to determine primordial sources of organics and sites of organic synthesis today, second, to determine if there are modern habitats in the solar system beyond Earth where the conditions for life exist today and third, if life exists there now. ELF conducts three tests for life. The first test looks for a non-abiotic distribution of amino acids, the second determines whether the carbon number distribution in fatty acids or isoprenoids is biased toward a particular rule, and the third measures carbon and hydrogen isotopic ratios, together with the abundance of methane relative to other alkanes, to assess whether the values fall in the range for biological processes. The ELF mission spacecraft conducts ten science plume fly-throughs; the baseline science is completed in the first five plume passages. JF - American Geophysical Union Fall Meeting AU - Lunine, Jonathan I AU - Waite, Jack H, Jr AU - Spilker, Linda J AU - Postberg, Frank AU - Cable, Morgan L AU - Srama, Ralf AU - Clark, Karla B AU - Lee, Steven W AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P11D EP - 09 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844922302?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Enceladus+life+finder%3B+search+for+life+in+a+habitable+Moon&rft.au=Lunine%2C+Jonathan+I%3BWaite%2C+Jack+H%2C+Jr%3BSpilker%2C+Linda+J%3BPostberg%2C+Frank%3BCable%2C+Morgan+L%3BSrama%2C+Ralf%3BClark%2C+Karla+B%3BLee%2C+Steven+W%3BAnonymous&rft.aulast=Lunine&rft.aufirst=Jonathan&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - Where did the water in Earth's oceans come from? AN - 1844922212; 2016-100863 AB - How did Earth get the water to fill its oceans? Upper mantle minerals, in particular olivine, pyroxenes and others, retrieved at the Earth's surface, have consistently been found to contain low hydroxyl concentrations, indicative of a low to very low solute H (sub 2) O contents. This has been interpreted for decades to mean that the upper mantle of the early Earth may not have had enough water to fill the oceans through volcanic and other degassing. To overcome this dilemma, large-scale cometary impacts are thought to have been necessary to supply the missing water. This interpretation is based on a misinterpretation of laboratory data obtained primarily by infrared absorption but also SIMS and related techniques. This interpretation disregards a pervasive redox conversion that takes place in the solid state, during cooling, changing pairs of solute hydroxyls into peroxy plus H (sub 2) . This redox conversion simply rearranges electrons within hydroxyl pairs. It takes place under thermodynamic non-equilibrium conditions, at temperatures so low that diffusional processes in the mineral matrix are already frozen. As a result every mineral and rock brought to the surface of the Earth and retrievable for analysis has undergone this redox conversion. Its importance is that it produces molecular H (sub 2) , interstitial in the matrix of minerals, difficult to assess analytically. It produces peroxy defects, which have been overlooked for a long time. H (sub 2) molecules may diffuse out of mineral grains, leaving behind the peroxy as a memory of the former solute water content. In order to fully assess the true solute H (sub 2) O content in the Earth's upper mantle it is necessary to take the peroxy contents into consideration. JF - American Geophysical Union Fall Meeting AU - Freund, Friedemann T AU - Freund, Minoru M AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P11A EP - 2055 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844922212?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Where+did+the+water+in+Earth%27s+oceans+come+from%3F&rft.au=Freund%2C+Friedemann+T%3BFreund%2C+Minoru+M%3BAnonymous&rft.aulast=Freund&rft.aufirst=Friedemann&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - The Europa Imaging System (EIS); high-resolution, 3-D insight into Europa's geology, ice shell, and potential for current activity AN - 1844922064; 2016-100934 AB - The Europa Imaging System will transform our understanding of Europa through global decameter-scale coverage, three-dimensional maps, and unprecedented meter-scale imaging. EIS combines narrow-angle and wide-angle cameras (NAC and WAC) designed to address high-priority Europa science and reconnaissance goals. It will: (A) Characterize the ice shell by constraining its thickness and correlating surface features with subsurface structures detected by ice penetrating radar; (B) Constrain formation processes of surface features and the potential for current activity by characterizing endogenic structures, surface units, global cross-cutting relationships, and relationships to Europa's subsurface structure, and by searching for evidence of recent activity, including potential plumes; and (C) Characterize scientifically compelling landing sites and hazards by determining the nature of the surface at scales relevant to a potential lander. The NAC provides very high-resolution, stereo reconnaissance, generating 2-km-wide swaths at 0.5-m pixel scale from 50-km altitude, and uses a gimbal to enable independent targeting. NAC observations also include: near-global (>95%) mapping of Europa at < or =50-m pixel scale (to date, only approximately 14% of Europa has been imaged at < or =500 m/pixel, with best pixel scale 6 m); regional and high-resolution stereo imaging at <1-m/pixel; and high-phase-angle observations for plume searches. The WAC is designed to acquire pushbroom stereo swaths along flyby ground-tracks, generating digital topographic models with 32-m spatial scale and 4-m vertical precision from 50-km altitude. These data support characterization of cross-track clutter for radar sounding. The WAC also performs pushbroom color imaging with 6 broadband filters (350-1050 nm) to map surface units and correlations with geologic features and topography. EIS will provide comprehensive data sets essential to fulfilling the goal of exploring Europa to investigate its habitability and perform collaborative science with other investigations, including cartographic and geologic maps, regional and high-resolution digital topography, GIS products, color and photometric data products, a geodetic control network tied to radar altimetry, and a database of plume-search observations. JF - American Geophysical Union Fall Meeting AU - Turtle, Elizabeth P AU - McEwen, Alfred S AU - Collins, Geoffrey C AU - Fletcher, Leigh N AU - Hansen, Candice J AU - Hayes, Alexander AU - Hurford, Terry, Jr AU - Kirk, Randolph L AU - Barr, Amy AU - Nimmo, Francis AU - Patterson, Gerald AU - Quick, Lynnae C AU - Soderblom, Jason M AU - Thomas, Nicolas AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P13E EP - 03 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844922064?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Europa+Imaging+System+%28EIS%29%3B+high-resolution%2C+3-D+insight+into+Europa%27s+geology%2C+ice+shell%2C+and+potential+for+current+activity&rft.au=Turtle%2C+Elizabeth+P%3BMcEwen%2C+Alfred+S%3BCollins%2C+Geoffrey+C%3BFletcher%2C+Leigh+N%3BHansen%2C+Candice+J%3BHayes%2C+Alexander%3BHurford%2C+Terry%2C+Jr%3BKirk%2C+Randolph+L%3BBarr%2C+Amy%3BNimmo%2C+Francis%3BPatterson%2C+Gerald%3BQuick%2C+Lynnae+C%3BSoderblom%2C+Jason+M%3BThomas%2C+Nicolas%3BAnonymous&rft.aulast=Turtle&rft.aufirst=Elizabeth&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - Carbon dioxide chemistry on Titan's surface AN - 1844922032; 2016-100924 AB - The surfaces of the moons of the outer Solar System are usually considered too cold (30-100 K) for significant chemistry to occur without the input of energy from exogenic sources (such as charged particles or VUV irradiation). In particular, Titan's thick atmosphere prevents significant amounts of high energy radiation from reaching the surface, limiting opportunities for surface chemical reactivity. Recently, we have identified carbamation, the reaction of carbon dioxide with primary amines to form carbamic acids, as a reaction that could occur thermally on Titan's surface. Amines should be present on Titan's surface, formed by photochemical reactions of N (sub 2) and CH (sub 4) in the upper atmosphere, and amine-containing molecules have been detected as a component of laboratory tholins made in terrestrial laboratories. There is some spectral evidence that CO (sub 2) is present on the surface, and CO (sub 2) has been definitively identified in the atmosphere. We use a combination of micro-Raman spectroscopy and UHV FTIR spectroscopy to examine the reaction products and kinetics of the carbamation reaction for a variety of primary amines. The reaction occurs readily at Titan surface temperatures (94 K), and leads to both carbamic acids and ammonium carbamate salts. Our kinetic data can be used to estimate the lifetime of CO (sub 2) on Titan's surface, and thus constrain the age of possible CO (sub 2) -bearing cryovolcanic deposits. JF - American Geophysical Union Fall Meeting AU - Hodyss, Robert P AU - Cable, Morgan L AU - Malaska, Michael J AU - Vu, Tuan Hoang AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P13B EP - 2142 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844922032?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Carbon+dioxide+chemistry+on+Titan%27s+surface&rft.au=Hodyss%2C+Robert+P%3BCable%2C+Morgan+L%3BMalaska%2C+Michael+J%3BVu%2C+Tuan+Hoang%3BAnonymous&rft.aulast=Hodyss&rft.aufirst=Robert&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - Compositional mapping of Europa's surface with SUDA AN - 1844922006; 2016-100937 AB - The Surface Mass Analyzer (SUDA) measures the composition of ballistic dust particles populating the thin exospheres that were detected around each of the Galilean moons. Since these grains are direct samples from the moons' icy surfaces, unique composition data will be obtained that will help to define and constrain the geological activities on and below the moons' surface. SUDA will make a vital contribution to NASA's mission to Europa and provide key answers to its main scientific questions about the surface composition, habitability, the icy crust, and exchange processes with the deeper interior of the Jovian icy moon Europa. SUDA is a time-of- flight, reflectron-type impact mass spectrometer, optimised for a high mass resolution which only weakly depends on the impact location. The small size, low mass and large sensitive area meet the challenging demands of mission to Europa. A full-size prototype SUDA instrument was built in order to demonstrate its performance through calibration experiments at the dust accelerator at NASA's IMPACT institute at Boulder, CO, with a variety of cosmo-chemically relevant dust analogues. The effective mass resolution of m/Delta m of 150-300 is achieved for mass range of interest m=1-150. JF - American Geophysical Union Fall Meeting AU - Kempf, Sascha AU - Sternovsky, Zoltan AU - Horanyi, Mihaly AU - Hand, Kevin P AU - Srama, Ralf AU - Postberg, Frank AU - Altobelli, Nicolas AU - Gruen, Eberhard AU - Gudipati, Murthy S AU - Schmidt, Juergen AU - Zolotov, Mikhail Yu AU - Tucker, Scott AU - Hoxie, Vaughn C AU - Kohnert, Rick AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P13E EP - 07 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844922006?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Compositional+mapping+of+Europa%27s+surface+with+SUDA&rft.au=Kempf%2C+Sascha%3BSternovsky%2C+Zoltan%3BHoranyi%2C+Mihaly%3BHand%2C+Kevin+P%3BSrama%2C+Ralf%3BPostberg%2C+Frank%3BAltobelli%2C+Nicolas%3BGruen%2C+Eberhard%3BGudipati%2C+Murthy+S%3BSchmidt%2C+Juergen%3BZolotov%2C+Mikhail+Yu%3BTucker%2C+Scott%3BHoxie%2C+Vaughn+C%3BKohnert%2C+Rick%3BAnonymous&rft.aulast=Kempf&rft.aufirst=Sascha&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - Composition, seasonal change and bathymetry of Ligeia Mare, Titan, derived from its 2.2-cm thermal emission AN - 1844921977; 2016-100900 AB - For the last 10 years, the Cassini RADAR has been exploring Saturn's moon Titan, the only planetary body besides Earth whose surface presently exhibits significant accumulations of liquids in the forms of lakes and seas. In particular, the passive Radiometer that is incorporated in this instrument has been recording the 2.2 cm-wavelength thermal emission from Titan's three seas. Radiometry observations provide new information beyond the active radar reflection data. In this paper, we analyze the radiometry observations collected from Feb. 2007 to July 2013 over one of these seas, Ligeia Mare, with the goal of providing constrains on its liquid composition, seafloor nature, bathymetry, and dynamics. In light of the two-layer model we have developed for this analysis, we find that the dielectric constant of the sea liquid is most likely smaller than 1.8, suggesting that the composition of Ligeia Mare is dominated by liquid methane rather than liquid ethane (although a ternary methane-ethane-nitrogen mixture cannot be ruled out). This result is further supported by the value we infer for the liquid loss tangent of 3-5X10-5. This value is in agreement with the one first published by Mastrogiuseppe et al. (2014) based on active radar observation. A high methane concentration suggests that Ligeia Mare is either a sea from which ethane has been removed by crustal interaction, or a sea primarily fed by methane-rich precipitation, or both. For the seafloor, a dielectric constant of 2.6-2.9+ or -0.9 is determined. Though this result is not very constraining, we favor a scenario where the floor of Ligeia Mare is covered by a sludge of compacted and possibly nitrile-rich organic material formed by the deposition of photochemical haze or by rain-washing of the nearby shores. These results are then used to convert the radiometry mosaic of Ligeia Mare into a qualitative low-resolution bathymetry map. Lastly, we establish limits on the physical temperature variation of the sea between Feb. 2007 to July 2013, namely less than 2 K, providing a constraint on the relative amounts of solar heating and evaporative cooling currently being explored in ocean circulation models. JF - American Geophysical Union Fall Meeting AU - Le Gall, Alice Anne AU - Malaska, Michael J AU - Lorenz, Ralph D AU - Janssen, Michael A AU - Tokano, Tetsuya AU - Hayes, Alexander AU - Lunine, Jonathan I AU - Veyssiaere, Gaelle AU - Mastrogiuseppe, Marco AU - Karatekin, Ozgur AU - Encrenaz, Pierre AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P12B EP - 03 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844921977?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Composition%2C+seasonal+change+and+bathymetry+of+Ligeia+Mare%2C+Titan%2C+derived+from+its+2.2-cm+thermal+emission&rft.au=Le+Gall%2C+Alice+Anne%3BMalaska%2C+Michael+J%3BLorenz%2C+Ralph+D%3BJanssen%2C+Michael+A%3BTokano%2C+Tetsuya%3BHayes%2C+Alexander%3BLunine%2C+Jonathan+I%3BVeyssiaere%2C+Gaelle%3BMastrogiuseppe%2C+Marco%3BKaratekin%2C+Ozgur%3BEncrenaz%2C+Pierre%3BAnonymous&rft.aulast=Le+Gall&rft.aufirst=Alice&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - Changes on Titan's surface AN - 1844920785; 2016-100911 AB - Cassini's Visual and Infrared Mapping Spectrometer (VIMS) and the Titan Radar Mapper have investigated Titan's surface since 2004, unveiling a complex, dynamic and Earth-like surface. Understanding the distribution and interplay of geologic processes is important for constraining models of its interior, surface-atmospheric interactions, and climate evolution. We focus on understanding the origin of the major geomorphological units identified by Lopes et al. (2010, 2015), Malaska et al. (2015) and regions we studied in Solomonidou et al. (2014; 2015). Here, we investigate the nature of: Undifferentiated Plains, Hummocky/Mountainous terrains, candidate cryovolcanic sites, Labyrinth, and Dunes in terms of surface albedo behavior and spectral evolution with time to identify possible changes. Using a radiative transfer code, we find that temporal variations of surface albedo occur for some areas. Tui Regio and Sotra Patera, both candidate cryovolcanic regions, change with time, becoming darker and brighter respectively in surface albedo. In contrast, we find that the Undifferentiated Plains and the suggested evaporitic areas in the equatorial regions do not present any significant changes. We are able to report the differences and similarities among the various regions and provide constraints on their chemical composition and specific processes of origin. Our results support the hypothesis that both endogenic and exogenic processes have played important roles in shaping Titan's geologic evolution. Such a variety of geologic processes and their relationship to the methane cycle make Titan important for astrobiology and habitability studies and particularly significant in solar system studies. JF - American Geophysical Union Fall Meeting AU - Solomonidou, Anezina AU - Lopes, Rosaly M C AU - Coustenis, Athena AU - Malaska, Michael J AU - Sotin, Christophe AU - Rodriguez, Sebastien AU - Janssen, Michael A AU - Drossart, Pierre AU - Lawrence, Kenneth J AU - Matsoukas, Chris K AU - Hirtzig, Mathieu AU - Le Mouelic, Stephane AU - Jaumann, Ralf AU - Brown, Robert Hamilton AU - Bratsolis, Emmanuel AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P13B EP - 2124 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844920785?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Changes+on+Titan%27s+surface&rft.au=Solomonidou%2C+Anezina%3BLopes%2C+Rosaly+M+C%3BCoustenis%2C+Athena%3BMalaska%2C+Michael+J%3BSotin%2C+Christophe%3BRodriguez%2C+Sebastien%3BJanssen%2C+Michael+A%3BDrossart%2C+Pierre%3BLawrence%2C+Kenneth+J%3BMatsoukas%2C+Chris+K%3BHirtzig%2C+Mathieu%3BLe+Mouelic%2C+Stephane%3BJaumann%2C+Ralf%3BBrown%2C+Robert+Hamilton%3BBratsolis%2C+Emmanuel%3BAnonymous&rft.aulast=Solomonidou&rft.aufirst=Anezina&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - An analysis of Earth science data analytics use cases AN - 1844920514; 2016-100737 AB - The increase in the number and volume, and sources, of globally available Earth science data measurements and datasets have afforded Earth scientists and applications researchers unprecedented opportunities to study our Earth in ever more sophisticated ways. In fact, the NASA Earth Observing System Data Information System (EOSDIS) archives have doubled from 2007 to 2014, to 9.1 PB (Ramapriyan, 2009; and https://earthdata.nasa.gov/about/system-performance). In addition, other US agency, international programs, field experiments, ground stations, and citizen scientists provide a plethora of additional sources for studying Earth. Co-analyzing huge amounts of heterogeneous data to glean out unobvious information is a daunting task. Earth science data analytics (ESDA) is the process of examining large amounts of data of a variety of types to uncover hidden patterns, unknown correlations and other useful information. It can include Data Preparation, Data Reduction, and Data Analysis. Through work associated with the Earth Science Information Partners (ESIP) Federation, a collection of Earth science data analytics use cases have been collected and analyzed for the purpose of extracting the types of Earth science data analytics employed, and requirements for data analytics tools and techniques yet to be implemented, based on use case needs. ESIP generated use case template, ESDA use cases, use case types, and preliminary use case analysis (this is a work in progress) will be presented. JF - American Geophysical Union Fall Meeting AU - Shie, Chung-Lin AU - Kempler, Steven J AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract IN23C EP - 1736 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844920514?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=An+analysis+of+Earth+science+data+analytics+use+cases&rft.au=Shie%2C+Chung-Lin%3BKempler%2C+Steven+J%3BAnonymous&rft.aulast=Shie&rft.aufirst=Chung-Lin&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - New Titan saltation threshold experiments; investigating current and past climates AN - 1844920493; 2016-100902 AB - Titan exhibits aeolian sand dunes that cover approximately 20% of its surface, attesting to significant sediment transport by the wind. Recent experiments in the Titan Wind Tunnel (TWT) at NASA Ames Research Center found that the threshold friction speed needed to detach Titanian "sand" is about 50% higher than previous estimates based on theory alone, a result that might be explained by the low ratio of particle to fluid density on the body. Following the successful completion of the initial Titan threshold tests, we are conducting new experiments that expand the pressure range above and below current Titan values. To reproduce the kinematic viscosity and particle friction Reynolds number equivalent to that expected for Titan's nitrogen atmosphere at 1.4 bars and 94 K requires that TWT be pressurized to 12.5 bars for air at 293K. In addition to running experiments at this pressure to reproduce previous results and investigate low density (high density ratio) materials, TWT pressures of 3 and 8 bars are in the experimental matrix to understand threshold under past Titan conditions when the atmospheric pressure may have been lower. Higher pressures, at 15 and 20 bars in TWT, are also being run to understand the putative effects of low density ratio conditions. Our experimental matrix for this follow-on work uses some of the same materials as previously used, including walnut shells, basalt, quartz, glass spheres, and various low density materials to better simulate the gravity-equivalent weight of Titan sand. For these experiments, the TWT is now equipped with a new high pressure Tavis transducer with sufficient sensitivity to measure freestream speeds of less than 0.5 m s-1 at 12.5 bars. New techniques include video documentation of the experiments. We are also investigating methods of measuring humidity of the wind tunnel environment and electrostatic forces to assess their effect on threshold. JF - American Geophysical Union Fall Meeting AU - Bridges, Nathan AU - Burr, Devon M AU - Marshall, John AU - Smith, James K AU - Emery, Joshua P AU - Horst, Sarah M AU - Nield, Emily AU - Yu, Xinting AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P12B EP - 05 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844920493?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Titan+saltation+threshold+experiments%3B+investigating+current+and+past+climates&rft.au=Bridges%2C+Nathan%3BBurr%2C+Devon+M%3BMarshall%2C+John%3BSmith%2C+James+K%3BEmery%2C+Joshua+P%3BHorst%2C+Sarah+M%3BNield%2C+Emily%3BYu%2C+Xinting%3BAnonymous&rft.aulast=Bridges&rft.aufirst=Nathan&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - Earthdata 3.0; a unified experience and platform for Earth science discovery AN - 1844919961; 2016-100722 AB - NASA's EOSDIS (Earth Observing System Data and Information System) as a multitude of websites and applications focused on serving the Earth Science community's extensive data needs. With no central user interface, theme, or mechanism for accessing that data, interrelated systems are confusing and potentially disruptive in users' searches for EOSDIS data holdings. In an effort to bring consistency across these systems, an effort was undertaken to develop Earthdata 3.0: a complete information architecture overhaul of the Earthdata website, a significant update to the Earthdata user experience and user interface, and an increased focus on searching across EOSDIS data holdings, including those housed and made available through DAAC websites. As part of this effort, and in a desire to unify the user experience across related websites, the Earthdata User Interface (EUI) was developed. The EUI is a collection of responsive design components and layouts geared toward creating websites and applications within the Earthdata ecosystem. Each component and layout has been designed specifically for Earth science-related projects which eliminates some of the complexities of building a website or application from the ground up. Its adoption will ensure both consistent markup and a unified look and feel for end users, thereby increasing usability and accessibility. Additionally, through the user of a Google Search Appliance, custom Clojure code, and in cooperation with DAACs, Earthdata 3.0 presents a variety of search results upon a user's keyword(s) entry. These results are not just textual links, but also direct links to downloadable datasets, visualizations of datasets and collections of data, and related articles and videos for further research. The end result of the development of the EUI and the enhanced multi-response type search is a consistent and usable platform for Earth scientists and users to navigate and locate data to further their research. JF - American Geophysical Union Fall Meeting AU - Plofchan, Peter AU - McLaughlin, Brett Dean AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract IN21B EP - 1694 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844919961?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Earthdata+3.0%3B+a+unified+experience+and+platform+for+Earth+science+discovery&rft.au=Plofchan%2C+Peter%3BMcLaughlin%2C+Brett+Dean%3BAnonymous&rft.aulast=Plofchan&rft.aufirst=Peter&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - NASA's Earth Observatory Natural Event Tracker; curating metadata for linking data and images to natural events AN - 1844919896; 2016-100762 AB - On any given date, there are multiple natural events occurring on our planet. Storms, wildfires, volcanoes and algal blooms can be analyzed and represented using multiple dataset parameters. These parameters, in turn, may be visualized in multiple ways and disseminated via multiple web services. Given these multiple-to-multiple relationships, we already have the makings of a microverse of linked data. In an attempt to begin putting this microverse to practical use, NASA's Earth Observatory Group has developed a prototype system called the Earth Observatory Natural Event Tracker (EONET). EONET is a metadata-driven service that is exploring digital curation as a means to adding value to the intersection of natural event-related data and existing web service-enabled visualization systems. A curated natural events database maps specific events to topical groups (e.g., storms, fires, volcanoes), from those groups to related web service visualization systems and, eventually, to the source data products themselves. I will discuss the complexities that arise from attempting to map event types to dataset parameters, and the issues of granularity that come from trying to define exactly what is, and what constrains, a single natural event, particularly in a system where one of the end goals is to provide a group-curated database. JF - American Geophysical Union Fall Meeting AU - Ward, Kevin AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract IN33B EP - 1797 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844919896?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=NASA%27s+Earth+Observatory+Natural+Event+Tracker%3B+curating+metadata+for+linking+data+and+images+to+natural+events&rft.au=Ward%2C+Kevin%3BAnonymous&rft.aulast=Ward&rft.aufirst=Kevin&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - Habitability in the solar system and on extrasolar planets and moons AN - 1840622202; 2016-098558 AB - The criteria for a habitable world initially was based on Earth and centered around liquid water on the surface, warmed by a Sun-like star. The moons of the outer Solar System, principally Europa and Enceladus, have demonstrated that liquid water can exist below the surface warmed by tidal forces from a giant planet. Titan demonstrates that surface liquids other than water--liquid methane/ethane--may be common on other worlds. Considering the numerous extrasolar planets so far discovered and the prospect of discovering extrasolar moons it is timely to reconsider the possibilities for habitable environments in the Solar System and on extrasolar planets and moons and enumerate the attributes and search methods for detecting habitable worlds and evidence of life. JF - American Geophysical Union Fall Meeting AU - McKay, Christopher P AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P34C EP - 06 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840622202?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Habitability+in+the+solar+system+and+on+extrasolar+planets+and+moons&rft.au=McKay%2C+Christopher+P%3BAnonymous&rft.aulast=McKay&rft.aufirst=Christopher&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-11-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Investigating Saturn's icy moons using HST/STIS AN - 1840622152; 2016-098480 AB - The inner moons of Saturn -- Mimas, Enceladus, Tethys, Dione and Rhea -- exhibit remarkable large-scale albedo and color variations. These trends can be linked to a combination of the unique exogenic processes occurring the Saturn system, including E-ring grain bombardment and charged particle bombardment. One of the fascinating characteristics of the Saturn system is that the icy satellites, though their surface compositions are dominated by water ice, are spectrally red--they are absorbing in the ultraviolet-visible wavelength region (wavelengths < approximately 550 nm)--a spectral feature not typical of pure water ice. In fact, the existing data show that in the UV, absorptions appear to be present superimposed on the overall red slope. Thus, though Cassini instruments have learned much about the surfaces of the icy moons, a basic question that remains is: What is their surface composition and what are the species or processes that cause these UV absorptions? Cassini's spectral coverage is lacking in precisely the near-UV wavelength regime in which the satellites appear to absorb most strongly. To resolve this issue and determine some understanding of the surface species present, we have obtained data using HST/STIS (Space Telescope Imaging Spectrograph). We have utilized the STIS G230L detector to obtain high SNR spectra in the 180-320 nm region along with short G430L exposures to obtain spectra in the 320-570 nm range, to completely fill in the Cassini gap in spectral coverage. Full-disk measurements have been made of the trailing and leading hemispheres of Mimas, Dione and Rhea; a spectrum of Enceladus was also obtained. We report on the results. In particular, we discuss implications for the presence of ammonia, ozone and organics. JF - American Geophysical Union Fall Meeting AU - Hendrix, Amanda R AU - Noll, Keith S AU - Spencer, John R AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P31B EP - 2072 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840622152?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Saturn%27s+icy+moons+using+HST%2FSTIS&rft.au=Hendrix%2C+Amanda+R%3BNoll%2C+Keith+S%3BSpencer%2C+John+R%3BAnonymous&rft.aulast=Hendrix&rft.aufirst=Amanda&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-11-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Perchlorate and volatiles in the brine of Lake Vida (Antarctica); implication for the analysis of Mars sediments AN - 1840622135; 2016-098518 AB - A cold (-13.4 degrees C), saline (188 psu) evaporative brine is encapsulated in the thick (>27 m) ice of Lake Vida (McMurdo Dry Valleys, Antarctica). The Lake Vida brine (LVBr), which contains abundant dissolved organic carbon (48.2 mmol/L), support an active but slow microbial community. LVBr contains oxychlorines with 50 mu g/L of perchlorate and 11 mu g/L of chlorate. The McMurdo Dry Valleys have often been considered as a good Mars analog. The oxychlorine-rich brine of Lake Vida constitutes a potential equivalent to perchlorate-rich preserved saline liquid water on Mars. We report here on the artifacts created by oxychlorines upon analysis of volatiles and volatile organic compounds (VOCs) of LVBr by direct immersion (DI) and head space (HS) solid phase micro extraction (SPME) gas chromatography-mass spectrometry (GCMS). We compare analytical blanks to a standard containing 40 mu g/L of perchlorate and to actual LVBr sample runs. All blanks, perchlorate blanks and samples were analyzed using two types of SPME fibers, CarboxenTM/polydimethylsiloxane (PDMS) and divinylbenzene (DVB)/PDMS. The similarities and differences between our results and those obtained by the Sample Analysis at Mars instruments of the rover Curiosity are discussed. The volatiles evolved from LVBr upon analysis with DI- and HS-SPME GCMS are dominated by CO (sub 2) , dichloromethane, HCl, and volatile organic sulfur compounds (VOSCs, such as DMS, DMDS). The volatiles also include oxygenated compounds such as acids and ketones, aromatic compounds, hydrocarbons, chlorinated compounds (dominated by dichloromethane). Apart from the VOSCs, short chain hydrocarbons and some functionalized compounds derived from the brine itself, all compounds observed are artifacts formed upon oxychlorine breakdown in the injector of the GCMS. The distribution of aromatic compounds seems to be directly dependant on the type of SPME fiber used. The perchlorate blanks show a clear pattern of carbon limitation, likely affecting the type and abundance of compounds produced. This suggests that carbon limited perchlorates blanks are not satisfactory for comparison to the analysis of oxychlorine containing samples. JF - American Geophysical Union Fall Meeting AU - Kenig, Fabien P H AU - Chou, Luoth AU - McKay, Christopher P AU - Jackson, William Andrew AU - Doran, Peter T AU - Murray, Alison E AU - Fritsen, Christian H AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P33A EP - 2122 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840622135?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Perchlorate+and+volatiles+in+the+brine+of+Lake+Vida+%28Antarctica%29%3B+implication+for+the+analysis+of+Mars+sediments&rft.au=Kenig%2C+Fabien+P+H%3BChou%2C+Luoth%3BMcKay%2C+Christopher+P%3BJackson%2C+William+Andrew%3BDoran%2C+Peter+T%3BMurray%2C+Alison+E%3BFritsen%2C+Christian+H%3BAnonymous&rft.aulast=Kenig&rft.aufirst=Fabien+P&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-11-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Exploring the inner edge of the habitable zone with fully coupled oceans AN - 1840621802; 2016-098559 AB - Rotation in planetary atmospheres plays an important role in regulating atmospheric and oceanic heat flow, cloud formation and precipitation. Using the Goddard Institute for Space Studies (GISS) three dimensional General Circulation Model (3D-GCM) we demonstrate how varying rotation rate and increasing the incident solar flux on a planet are related to each other and may allow the inner edge of the habitable zone to be much closer than many previous habitable zone studies have indicated. This is shown in particular for fully coupled ocean runs over a large range of insolation and rotation rates. Results with a 100 m mixed layer depth and our fully coupled ocean runs are compared with those of Yang et al. 2014, which demonstrates consistency across models. However, there are clear differences for rotations rates of 1-16x present earth day lengths between the mixed layer and fully coupled ocean models, which points to the necessity of using fully coupled oceans whenever possible. The latter was recently demonstrated quite clearly by Hu & Yang 2014 in their aquaplanet study with a fully coupled ocean when compared with similar mixed layer ocean studies and by Cullum et al. 2014. Atmospheric constituent amounts were also varied alongside adjustments to cloud parameterizations. While the latter have an effect on what a planet's global mean temperature is once the oceans reach equilibrium they do not qualitatively change the overall relationship between the globally averaged surface temperature and incident solar flux for rotation rates ranging from 1 to 256 times the present Earth day length. At the same time this study demonstrates that given the lack of knowledge about the atmospheric constituents and clouds on exoplanets there is still a large uncertainty as to where a planet will sit in a given star's habitable zone. We also explore options for understanding the possibility for regional habitability via an aridity index and a separate moisture index. The former is related to the competition between precipitation and the potential evapotranpiration of the soil (via a modified Penman-Monteith equation) while the latter is a measure of the amount of liquid water found on land. JF - American Geophysical Union Fall Meeting AU - Way, Michael AU - Del Genio, Anthony D AU - Kiang, Nancy Y AU - Kelley, Maxwell AU - Aleinov, Igor D AU - Clune, Thomas L AU - Puma, Michael Joseph AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P34C EP - 07 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840621802?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Exploring+the+inner+edge+of+the+habitable+zone+with+fully+coupled+oceans&rft.au=Way%2C+Michael%3BDel+Genio%2C+Anthony+D%3BKiang%2C+Nancy+Y%3BKelley%2C+Maxwell%3BAleinov%2C+Igor+D%3BClune%2C+Thomas+L%3BPuma%2C+Michael+Joseph%3BAnonymous&rft.aulast=Way&rft.aufirst=Michael&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-11-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Complex explosive volcanic activity on the Moon in Oppenheimer Crater AN - 1840621800; 2016-098506 AB - Oppenheimer is a floor-fractured crater located within the South Pole-Aitken basin on the Moon, and exhibits more than a dozen localized pyroclastic deposits associated with the fractures. Localized pyroclastic deposits on the Moon are thought to form as a result of intermittently explosive Vulcanian eruptions under low effusion rates, in contrast to the higher-effusion rates and Hawaiian-style fire fountaining inferred to form larger regional deposits. However, using new methods to derive iron mineralogy from Chandrayaan-1 Moon Mineralogy Mapper near-infrared spectra, we find that the mineralogy of the Oppenheimer pyroclastics is not consistent with a simple Vulcanian eruption mechanism. The Oppenheimer pyroclastic deposits are mixtures of pyroxene sourced from the crater floor, juvenile clinopyroxene (CPX), and juvenile iron-rich glass. A Vulcanian (plugged conduit) eruption should cause significant country rock to be incorporated into the pyroclastic deposit. However, large areas within many of the deposits exhibit spectra consistent with high abundances of juvenile phases (glass or CPX mixed with glass) and very little floor material. Thus, we propose that at least some portion of these deposits must have erupted via a Strombolian or more continuous fire fountaining eruption at higher effusion rates. Significant along-fracture mineralogical variations within many of the deposits suggest multiple eruptions and that eruption styles may have been variable in time and space. Diviner mid-infrared spectra also indicate that these local deposits may be much more iron-rich than regional pyroclastic deposits, and thus are valuable resource targets. These results suggest that local lunar pyroclastic deposits may have a more complex origin and mode of emplacement than previously thought. JF - American Geophysical Union Fall Meeting AU - Horgan, Briony H N AU - Bennett, Kristen A AU - Gaddis, Lisa R AU - Greenhagen, Benjamin T AU - Allen, Carlton C AU - Hayne, Paul O AU - Bell, James F, III AU - Paige, David A AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P31H EP - 03 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840621800?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Complex+explosive+volcanic+activity+on+the+Moon+in+Oppenheimer+Crater&rft.au=Horgan%2C+Briony+H+N%3BBennett%2C+Kristen+A%3BGaddis%2C+Lisa+R%3BGreenhagen%2C+Benjamin+T%3BAllen%2C+Carlton+C%3BHayne%2C+Paul+O%3BBell%2C+James+F%2C+III%3BPaige%2C+David+A%3BAnonymous&rft.aulast=Horgan&rft.aufirst=Briony+H&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-11-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Mars organic matter revealed by the detection of organo-chlorinated molecules from pyro-GCMS analyses of Yellowknife bay mudstone AN - 1840621544; 2016-098521 AB - Mudstones collected on the Yellowknife Bay site in Gale crater by the Curiosity rover, were analyzed with the Sample Analysis at Mars (SAM) chemical laboratory with the aim (among others) to detect and identify organic molecules in the Martian regolith. The pyrolysis (to 900 degrees C)-gas chromatography-mass spectrometry (Pyro-GCMS) analytical mode was systematically used to reach that goal. It revealed the existence of complex interactions between compounds present in the soil sample (e.g. oxychlorines) and internal components of the SAM experiment (e.g. derivatization reactant) resulting in signals complex to interpret. By comparing these results with those obtained for the other Mars samples analysed with SAM, and by carefully identifying, from laboratory work, the possible SAM internal contributions to the organic molecules detected, chlorobenzene has already been identified as mainly originating from organics present in the mudstone. Since this discovery, we did additional studies of the chromatograms that reveal the presence of dichlorobenzene originating from an organic source endogenous to the sample. Even if the exact original source of these organic molecules cannot be strictly identified, the detection of several chlorinated aromatic molecules suggests the presence of a significant amount of aromatized materials which are in an oxidized state involving oxygen in the mudstone. We present here the corresponding results and the implication it can have on the origin of these organic materials JF - American Geophysical Union Fall Meeting AU - Szopa, Cyril AU - Freissinet, Caroline AU - Glavin, Daniel Patrick AU - Buch, Arnaud AU - Coll, Patrice J AU - Cabane, Michel AU - Millan, Maeva AU - Belmahadi, Imene AU - Navarro-Gonzalez, Rafael AU - Steele, Andrew AU - Summons, Roger E AU - Eigenbrode, Jennifer L AU - Mahaffy, Paul R AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P33A EP - 2125 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840621544?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mars+organic+matter+revealed+by+the+detection+of+organo-chlorinated+molecules+from+pyro-GCMS+analyses+of+Yellowknife+bay+mudstone&rft.au=Szopa%2C+Cyril%3BFreissinet%2C+Caroline%3BGlavin%2C+Daniel+Patrick%3BBuch%2C+Arnaud%3BColl%2C+Patrice+J%3BCabane%2C+Michel%3BMillan%2C+Maeva%3BBelmahadi%2C+Imene%3BNavarro-Gonzalez%2C+Rafael%3BSteele%2C+Andrew%3BSummons%2C+Roger+E%3BEigenbrode%2C+Jennifer+L%3BMahaffy%2C+Paul+R%3BAnonymous&rft.aulast=Szopa&rft.aufirst=Cyril&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-11-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - An airborne observing campaign of an announced small asteroid impact for high fidelity impact modeling validation AN - 1840621268; 2016-095967 AB - High fidelity modeling of an asteroid impact requires a known size, mass, shape, entry orientation, entry speed, entry angle, time and location of entry, and material properties of the impacting asteroid. Much of that information can be gathered from small asteroids on an impact trajectory with Earth while they are on approach, given sufficient warning time. That makes small asteroid impacts uniquely suited for collecting data to validate such models. One-meter sized asteroids impact Earth about once a week, 4-meter sized asteroids impact once a year. So far, only asteroid 2008 TC3 was observed in space, characterized prior to impact, and then recovered in part as meteorites on the ground. The next TC3-like impact could provide more warming time to study the impact in detail. Close to 70 percent of all asteroid impacts on Earth occur over the ocean. Hence, small asteroid impact observations require an instrumented airborne platform to take a multi-disciplined research team to the right location at the right time. From a safe 100-km distance, the impact would be observed low enough in the sky to study the process of fragmentation that dictates at which altitude the kinetic energy is deposited that can cause an airburst. Constraints on radiative heating, ablation rate, and fragmentation processes can be obtained from measuring the air plasma emission escaping the shock, elemental atom line emissions and excitation conditions, pressure broadening, and deceleration in the plane of the known trajectory. It is also possible to measure wake, lightcurve and air plasma emission line intensities early in flight that can be used to evaluate the presence of regolith and the internal cohesion of asteroids. The main element abundance (asteroid composition) can be measured for individual fragments, while CN-band emission can point to the presence of organic matter. Such information will help constrain the meteorite type if no meteorites can be recovered in an over-the-ocean impact (e.g., ordinary chondrites with low or high iron content). The observed altitude of disruption can be used to direct airborne dust collection efforts in the atmosphere. To prepare for such observing campaign and the quick recovery of meteorites, if possible, an international "Next TC3 Consortium" was established. For more information: http://impact.seti.org. JF - American Geophysical Union Fall Meeting AU - Jenniskens, P M M AU - Grinstead, Jay H AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract NH14B EP - 01 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840621268?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=An+airborne+observing+campaign+of+an+announced+small+asteroid+impact+for+high+fidelity+impact+modeling+validation&rft.au=Jenniskens%2C+P+M+M%3BGrinstead%2C+Jay+H%3BAnonymous&rft.aulast=Jenniskens&rft.aufirst=P+M&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-11-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Laser ranging in solar system; technology developments and new science measurement capabilities AN - 1840621199; 2016-098547 AB - Laser Ranging has played a major role in geodetic studies of the Earth over the past 40 years. The technique can potentially be used in between planets and spacecrafts within the solar system to advance planetary science. For example, a direct measurement of distances between planets, such as Mars and Venus would make significant improvements in understanding the dynamics of the whole solar system, including the masses of the planets and moons, asteroids and their perturbing interactions, and the gravity field of the Sun. Compared to the conventional radio frequency (RF) tracking systems, laser ranging is potentially more accurate because it is much less sensitive to the transmission media. It is also more efficient because the laser beams are much better focused onto the targets than RF beams. However, existing laser ranging systems are all Earth centric, that is, from ground stations on Earth to orbiting satellites in near Earth orbits or lunar orbit, and to the lunar retro-reflector arrays deployed by the astronauts in the early days of lunar explorations. Several long distance laser ranging experiments have been conducted with the lidar in space, including a two-way laser ranging demonstration between Earth and the Mercury Laser Altimeter (MLA) on the MESSENGER spacecraft over 24 million km, and a one way laser transmission and detection experiment over 80 million km between Earth and the Mars Orbiting Laser Altimeter (MOLA) on the MGS spacecraft in Mars orbit. A one-way laser ranging operation has been carried out continuously from 2009 to 2014 between multiple ground stations to LRO spacecraft in lunar orbit. The Lunar Laser Communication Demonstration (LLCD) on the LADEE mission has demonstrated that a two way laser ranging measurements, including both the Doppler frequency and the phase shift, can be obtained from the subcarrier or the data clocks of a high speed duplex laser communication system. Plans and concepts presently being studied suggest we may be on the cusp of demonstrating interplanetary laser ranging to bring the future of solar system geodesy and geodynamics into reality. JF - American Geophysical Union Fall Meeting AU - Sun, Xiaoli AU - Smith, David E AU - Zuber, Maria T AU - McGarry, Jan AU - Neumann, Gregory A AU - Mazarico, Erwan M AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P34A EP - 09 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840621199?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+ranging+in+solar+system%3B+technology+developments+and+new+science+measurement+capabilities&rft.au=Sun%2C+Xiaoli%3BSmith%2C+David+E%3BZuber%2C+Maria+T%3BMcGarry%2C+Jan%3BNeumann%2C+Gregory+A%3BMazarico%2C+Erwan+M%3BAnonymous&rft.aulast=Sun&rft.aufirst=Xiaoli&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-11-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - High-resolution gravity models for Mercury from MESSENGER tracking data AN - 1840621002; 2016-098582 AB - On 30 April 2015 the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft completed its mission of slightly more than 4 years of operations in orbit around the planet Mercury. To meet mission thermal constraints, MESSENGER's orbit around Mercury was eccentric, with a periapsis located at high northern latitudes. During its primary mission, the periapsis altitude was maintained between 200 and 500 km. For more than two years thereafter, the periapsis altitude was left to evolve naturally, reaching a maximum of 450 km in March 2013, after which it started to decrease. In MESSENGER's second extended mission, altitudes as low as 15-25 km above the surface of Mercury were achieved. Radio tracking data acquired by the Deep Space Network (DSN) at the X-band frequency have been used to determine models of the gravity field of Mercury. The resolution of these global models, expressed in spherical harmonics, increased as data at lower altitudes became available. However, because of MESSENGER's eccentric orbit, the data cover only the northern hemisphere, and coverage is less dense toward the equator. Local solutions, which use basis functions that do not have global support, are especially suitable to handle such uneven data coverage. Here, we present gravity field solutions based on gravity anomalies arranged on a grid with a resolution of 1 degree by 1 degree. We use line-of-sight derivatives of Doppler data, which are obtained by numerical differentiation of the time series of DSN tracking data. Our local solution covers the northern hemisphere from 10 degrees N to 88 degrees N. Our solution shows increased correlations with topography in areas with low-altitude data coverage. We also compare our local solution to global models of similar resolution. JF - American Geophysical Union Fall Meeting AU - Goossens, Sander J AU - Mazarico, Erwan M AU - Genova, Antonio AU - Lemoine, Frank G AU - Neumann, Gregory A AU - Zuber, Maria T AU - Smith, David E AU - Solomon, Sean C AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P41C EP - 2077 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840621002?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=High-resolution+gravity+models+for+Mercury+from+MESSENGER+tracking+data&rft.au=Goossens%2C+Sander+J%3BMazarico%2C+Erwan+M%3BGenova%2C+Antonio%3BLemoine%2C+Frank+G%3BNeumann%2C+Gregory+A%3BZuber%2C+Maria+T%3BSmith%2C+David+E%3BSolomon%2C+Sean+C%3BAnonymous&rft.aulast=Goossens&rft.aufirst=Sander&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-11-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Iron-rich carbonates as the potential source of evolved CO (sub 2) detected by the sample analysis at Mars (SAM) instrument in gale crater AN - 1840620565; 2016-098499 AB - The Sample Analysis at Mars (SAM) instrument detected at least 4 distinct CO (sub 2) release during the pyrolysis of a sample scooped from the Rocknest (RN) eolian deposit. The highest peak CO (sub 2) release temperature (478-502 degrees C) has been attributed to either a Fe-rich carbonate or nano-phase Mg-carbonate. The objective of this experimental study was to evaluate the thermal evolved gas analysis (T/EGA) characteristics of a series of terrestrial Fe-rich carbonates under analog SAM operating conditions to compare with the RN CO (sub 2) releases. Natural Fe-rich carbonates (<53mu m) with varying Fe amounts (Fe (sub 0.66) X (sub 0.34) to Fe (sub 0.99) X (sub 0.01) -CO (sub 3) , where X refers to Mg and/or Mn) were selected for T/EGA. The carbonates were heated from 25 to 715 degrees C (35 degrees C min (super -1) ) and evolved CO2 was measured as a function of temperature. The highest Fe containing carbonates (e.g., Fe (sub 0.99) X (sub 0.01) -CO (sub 3) ) yielded CO (sub 2) peak temperatures between 466-487 degrees C, which is consistent with the high temperature RN CO (sub 2) release. The lower Fe-bearing carbonates (e.g., Fe (sub 0.66) X (sub 0.34) CO (sub 3) ) did not have peak CO (sub 2) release temperatures that matched the RN peak CO (sub 2) temperatures; however, their entire CO (sub 2) releases did occur within RN temperature range of the high temperature CO (sub 2) release. Results from this laboratory analog analysis demonstrate that the high temperature RN CO (sub 2) release is consistent with Fe-rich carbonate ( approximately 0.7 to 1 wt.% FeCO (sub 3) ). The similar RN geochemistry with other materials in Gale Crater and elsewhere on Mars (e.g., Gusev Crater, Meridiani) suggests that up to 1 wt.% Fe-rich carbonate may occur throughout the Gale Crater region and could be widespread on Mars. The Rocknest Fe-carbonate may have formed from the interaction of reduced Fe phases (e.g., Fe (super 2+) bearing olivine) with atmospheric CO (sub 2) and transient water. Alternatively, the Rocknest Fe-carbonate could be derived by eolian processes that have eroded distally exposed deep crustal material that possesses Fe-carbonate that may have formed through metamorphic and/or metasomatic processes. JF - American Geophysical Union Fall Meeting AU - Sutter, Brad AU - Heil, Elanor Melissa AU - Rampe, Elizabeth B AU - Morris, Richard V AU - Ming, Douglas W AU - Archer, Paul Douglas, Jr AU - Eigenbrode, Jennifer L AU - Franz, Heather B AU - Glavin, Daniel Patrick AU - McAdam, Amy AU - Navarro-Gonzalez, Rafael AU - Mahaffy, Paul R AU - Stern, Jennifer C AU - Mertzman, Stanley A AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P31F EP - 07 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840620565?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Iron-rich+carbonates+as+the+potential+source+of+evolved+CO+%28sub+2%29+detected+by+the+sample+analysis+at+Mars+%28SAM%29+instrument+in+gale+crater&rft.au=Sutter%2C+Brad%3BHeil%2C+Elanor+Melissa%3BRampe%2C+Elizabeth+B%3BMorris%2C+Richard+V%3BMing%2C+Douglas+W%3BArcher%2C+Paul+Douglas%2C+Jr%3BEigenbrode%2C+Jennifer+L%3BFranz%2C+Heather+B%3BGlavin%2C+Daniel+Patrick%3BMcAdam%2C+Amy%3BNavarro-Gonzalez%2C+Rafael%3BMahaffy%2C+Paul+R%3BStern%2C+Jennifer+C%3BMertzman%2C+Stanley+A%3BAnonymous&rft.aulast=Sutter&rft.aufirst=Brad&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-11-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Understanding Kaula's rule for small bodies AN - 1840620435; 2016-098588 AB - Kaula's rule gives a bound on the RMS of the gravity coefficients of each order as a power law K/n (super 2) , where n is the degree. Kaula derived the value of K for Earth as 10-5. This rule has been used as an a priori information bound on the gravity coefficients of other planetary bodies before their gravity fields are measured by spacecraft. To apply Kaula's rule to other bodies, the simple scaling based on the relative gravity of each body is used--(gEarth/gPlanet)2. This scaling was successfully used even for Vesta, where K=0.011. However, if Kaula's rule is applied to very small bodies, such as the OSIRIS-REx target asteroid Bennu, the scaling results in unusable bounds. In this case, K approximately 105. This fact has motivated further investigation into the derivation and application of a Kaula-like power rule to bound the gravity field of small bodies. Our initial investigation focuses on the specific application to Bennu. This study is enabled by the fact that a fairly accurate shape model of Bennu has been derived based on three Earth-based radar apparitions along with a constrained bulk density based on astrometry and thermal measurements. Thus we investigated varying the Bennu topography within the expected accuracy of the shape model as well as the density distribution. Several interesting facts were discovered through this analysis. First, the top shape of Bennu, common to a number of near-Earth asteroids, results in the even zonal coefficients being larger than the odd zonal of one lower degree. Second, the zonals in general are significantly larger than the coefficients with order >1, so that the zonals will dominate any fitting of K to a power law. This encourages us to have one K for the absolute value of the zonals (K=0.087), and a separate value for the RMS of the other coefficients (K=0.026). Third, variation in the topography within this uncertainty dominates the variation in the gravity field coefficients over basic inhomogenous density distribution effects. Finally, with significantly non-spherical shapes, it is not clear what value for the reference radius should be used when deriving the gravity field coefficients, and this can greatly change the exponent of the power law. These results are investigated and compared for several other small bodies (e.g. Itokawa, 1999 FG3) in this work. JF - American Geophysical Union Fall Meeting AU - McMahon, Jay AU - Scheeres, Daniel Jay AU - Farnocchia, Davide AU - Chesley, Steve AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P41C EP - 2084 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840620435?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Kaula%27s+rule+for+small+bodies&rft.au=McMahon%2C+Jay%3BScheeres%2C+Daniel+Jay%3BFarnocchia%2C+Davide%3BChesley%2C+Steve%3BAnonymous&rft.aulast=McMahon&rft.aufirst=Jay&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-11-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Enabling planetary geodesy with the deep space network AN - 1840620417; 2016-098540 AB - For five decades of planetary exploration, missions have carried out Radio Science experiments that led to numerous discoveries in planetary geodesy. The interior structures of many planets, large moons, asteroids and comet nuclei have been modeled based on their gravitational fields and dynamical parameters derived from precision Doppler and range measurements, often called radio metrics. Advanced instrumentation has resulted in the high level of data quality that enabled scientific breakthroughs. This instrumentation scheme, however, is distributed between elements on the spacecraft and others at the stations of the Deep Space Network (DSN), making the DSN a world-class science instrument. The design and performance of the DSN stations directly determines the quality of the science observables and radio link-based planetary geodesy observations are established by methodologies and capabilities of the DSN. In this paper, we summarize major recent discoveries in planetary geodesy at the rocky planets and the Moon, Saturnian and Jovian satellites, Phobos, and Vesta; experiments and analysis in progress at Ceres and Pluto; upcoming experiments at Jupiter, Saturn and Mars (InSight), and the long-term outlook for approved future missions with geodesy objectives. The DSN's role will be described along the technical advancements in DSN transmitters, receivers, atomic clocks, and other specialized instrumentation, such as the Advanced Water Vapor Radiometer, Advanced Ranging Instrument, as well as relevant mechanical and electrical components. Advanced techniques for calibrations of known noise sources and Earth's troposphere, ionosphere, and interplanetary plasma are also presented. A typical error budget will be presented to aid future investigations in carrying out trade-off studies in the end-to-end system performance. JF - American Geophysical Union Fall Meeting AU - Park, Ryan S AU - Asmar, Sami W AU - Armstrong, John W AU - Buccino, Dustin R AU - Folkner, William M AU - Iess, Luciano AU - Konopliv, Alex S AU - Lazio, Joseph AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P34A EP - 01 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840620417?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Enabling+planetary+geodesy+with+the+deep+space+network&rft.au=Park%2C+Ryan+S%3BAsmar%2C+Sami+W%3BArmstrong%2C+John+W%3BBuccino%2C+Dustin+R%3BFolkner%2C+William+M%3BIess%2C+Luciano%3BKonopliv%2C+Alex+S%3BLazio%2C+Joseph%3BAnonymous&rft.aulast=Park&rft.aufirst=Ryan&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-11-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Evidence of refractory organic matter preserved in the mudstones of Yellowknife Bay and the Murray Formations AN - 1840620264; 2016-098500 AB - Volatiles from high-temperature (above 500 degrees C) pyrolysis of drilled and sieved deltaic/lacustrine mudstones at Yellowknife Bay and Pahrump Hills were detected by the Sample Analysis at Mars (SAM) instrument's evolved gas analysis experiment onboard the Curiosity rover in Gale Crater, Mars. Mass fragments detected from the mudstones are consistent with C1-C4 alkyl and single-ring aromatic components that evolve at different temperatures and often in multiple phases. Concurrent release of oxidized sulfur (sulfur dioxide and sulfur trioxide), sulfide gases (hydrogen sulfide, carbonyl sulfide, carbon disulfide, dimethylsulfide or thiol, and thiophene) suggest that either these gases are evolving directly from the mudstone or are products of gas phase reactions in the SAM oven, or both. Multiple chlorohydrocarbon releases are also observed in analysis of the Mojave mudstone indicating punctuated organic releases from the sample. The organic signatures observed are unique to specific samples and are not observed in blanks or all samples, nor can the SAM background explain them. These results suggest that geologically refractory organic matter has been preserved in some Hesperian mudstones despite possible acid-sulfate weathering (as suggested by jarosite in Mojave) and exposure to ionizing cosmic rays after exhumation. We will report on ongoing study of these samples. JF - American Geophysical Union Fall Meeting AU - Eigenbrode, Jennifer L AU - Steele, Andrew AU - Summons, Roger E AU - Sutter, Brad AU - McAdam, Amy AU - Franz, Heather B AU - Mahaffy, Paul R AU - Conrad, Pamela G AU - Freissinet, Caroline AU - Glavin, Daniel Patrick AU - Millan, Maeva AU - Ming, Douglas W AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P31F EP - 08 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840620264?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Evidence+of+refractory+organic+matter+preserved+in+the+mudstones+of+Yellowknife+Bay+and+the+Murray+Formations&rft.au=Eigenbrode%2C+Jennifer+L%3BSteele%2C+Andrew%3BSummons%2C+Roger+E%3BSutter%2C+Brad%3BMcAdam%2C+Amy%3BFranz%2C+Heather+B%3BMahaffy%2C+Paul+R%3BConrad%2C+Pamela+G%3BFreissinet%2C+Caroline%3BGlavin%2C+Daniel+Patrick%3BMillan%2C+Maeva%3BMing%2C+Douglas+W%3BAnonymous&rft.aulast=Eigenbrode&rft.aufirst=Jennifer&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-11-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Planetary dynamics from laser altimetry; spin and tidal deformation of the Moon and Mercury AN - 1840619779; 2016-098585 AB - The dynamics of planetary bodies can provide valuable, and often unique, information on their interior structure. For instance, surface tidal deformation indicates how a body responds to the gravitational tidal forcing, and can thus give an indication of how the internal structure and temperature varies with depth. In addition, the orientation and spin rate of a planetary body are affected by its interior mass distribution and thermal evolution. In this contribution, we describe recent work to constrain the tidal deformation of the Moon and spin state and orientation of Mercury using altimetric crossovers measured by the Lunar Orbiter Laser Altimeter (LOLA) and MESSENGER Laser Altimeter (MLA). Altimetric crossovers are ideal for detecting the desired small surface changes, as they avoid the problem of aliasing topographic changes due to small-scale, unpredictable and uncorrelated, geologic relief. On the Moon, the tidal surface deformation is small (amplitude approximately 10 cm), but, using the highest quality LOLA crossovers, Mazarico et al. (2014) made the first measurement of the radial Love number h2 from an orbiting spacecraft. In a follow-up to that work, we are incorporating more crossovers to improve the temporal sampling of the tidal signal, thus enabling analysis of the spatial variation of the tidal amplitude, as might be expected given the thicker and cooler far side crust and the potential presence of a partial melt region below the PKT. Due to tidal torques from the Sun, Mercury experiences longitudinal librations about its 3:2 spin-orbit resonance with an amplitude of approximately 450 m at the equator. This amplitude is significantly larger than the geolocation uncertainty of the MLA altimetry ( approximately 10/100 m in radial/horizontal), and could, thus, be detectable from crossovers alone. However, given the sparse coverage near the equator, where the libration amplitude is largest, it may be necessary to incorporate into the analysis stereo-derived DEMs from the Mercury Dual Imaging System (MDIS). JF - American Geophysical Union Fall Meeting AU - Barker, Michael Kenneth AU - Mazarico, Erwan M AU - Smith, David E AU - Zuber, Maria T AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P41C EP - 2080 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840619779?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Planetary+dynamics+from+laser+altimetry%3B+spin+and+tidal+deformation+of+the+Moon+and+Mercury&rft.au=Barker%2C+Michael+Kenneth%3BMazarico%2C+Erwan+M%3BSmith%2C+David+E%3BZuber%2C+Maria+T%3BAnonymous&rft.aulast=Barker&rft.aufirst=Michael&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-11-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Carbon reservoir history of Mars constrained by atmospheric isotopic measurements and carbonate remote sensing AN - 1840618728; 2016-098516 AB - The evolution of the atmosphere on Mars is one of the most intriguing problems in the exploration of the Solar System, and the climate of Mars may have evolved from a warmer, wetter early state to the cold, dry current state. Because CO (sub 2) is the major constituent of Mars's atmosphere, its isotopic signatures offer a unique window to trace the evolution of climate on Mars. We derive new quantitative constraints on the amount of carbonate deposition and the atmospheric pressure of Mars through time, extending into the Noachian, approximately 3.8 Gyr before present. This determination is based on recent Mars Science Laboratory (MSL) isotopic measurements of Mars's atmosphere, recent orbiter, lander, and rover measurements of Mars's surface, and a newly identified mechanism (photodissociation of CO) that efficiently enriches the heavy carbon isotope. In particular, we find that escape via CO photodissociation on Mars has a fractionation factor of 0.6 and hence, photochemical escape processes can effectively enrich (super 13) C in the Mars's atmosphere during the Amazonian. This enrichment is partially compensated by moderate carbonate precipitation during the late Noachian and/or Hesperian. The current atmospheric (super 13) C/ (super 12) C and rock and soil carbonate measurements indicate an early atmosphere with a surface pressure less than 1 bar. Only scenarios with large amounts of carbonate formation in open lakes permit higher values up to 1.8 bars. The evolutionary scenarios are fully testable with data from the MAVEN mission and further studies of the isotopic composition of carbonate in the Martian rock record through time. JF - American Geophysical Union Fall Meeting AU - Hu, Renyu AU - Kass, David M AU - Ehlmann, Bethany L AU - Yung, Yuk L AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract P33A EP - 2120 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840618728?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Carbon+reservoir+history+of+Mars+constrained+by+atmospheric+isotopic+measurements+and+carbonate+remote+sensing&rft.au=Hu%2C+Renyu%3BKass%2C+David+M%3BEhlmann%2C+Bethany+L%3BYung%2C+Yuk+L%3BAnonymous&rft.aulast=Hu&rft.aufirst=Renyu&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-11-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Pre-earthquake magnetic pulses AN - 1840618523; 2016-095978 AB - A semiconductor model of rocks is shown to describe unipolar magnetic pulses, a phenomenon that has been observed prior to earthquakes. These pulses are suspected to be generated deep in the Earth's crust, in and around the hypocentral volume, days or even weeks before earth quakes. Their extremely long wavelength allows them to pass through kilometers of rock. Interestingly, when the sources of these pulses are triangulated, the locations coincide with the epicenters of future earthquakes. We couple a drift-diffusion semiconductor model to a magnetic field in order to describe the electromagnetic effects associated with electrical currents flowing within rocks. The resulting system of equations is solved numerically and it is seen that a volume of rock may act as a diode that produces transient currents when it switches bias. These unidirectional currents are expected to produce transient unipolar magnetic pulses similar in form, amplitude, and duration to those observed before earthquakes, and this suggests that the pulses could be the result of geophysical semiconductor processes. JF - American Geophysical Union Fall Meeting AU - Scoville, J AU - Heraud, J A AU - Freund, F T AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract NH21A EP - 1807 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1840618523?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Pre-earthquake+magnetic+pulses&rft.au=Scoville%2C+J%3BHeraud%2C+J+A%3BFreund%2C+F+T%3BAnonymous&rft.aulast=Scoville&rft.aufirst=J&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-11-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Prediction of rock falls properties thanks to emitted seismic signal AN - 1832729278; 2016-089469 AB - The seismic signal generated by rockfalls, landslides or avalanches provides an unique tool to detect, characterize and monitor gravitational flow activity, with strong implication in terms of natural hazards. Indeed, as natural flows travel down the slope, they apply stresses on top of the Earth surface, generating seismic waves in a wide frequency band, associated to the different physical processes involved. Our aim is to deduce the granular flow properties from the generated signal. It is addressed here with both laboratory experiments and simulations. In practice, regarding the experimental part, a set-up using a combination of optical and acoustic methods is employed, in order to measure the seismic signal generated by, (i) the impact of beads of different properties, (ii) the collapse of granular columns, over horizontal and sloping substrates. The substrates are made of plates and blocs of different sizes and characteristics. For the first point (i), Farin et al. [2015] have showed that it exists a link between the properties of an impacting bead (mass and velocity) on smooth surfaces and the emitted signal (radiated elastic energy and mean frequency). This demonstrate that it is possible to deduce the impactor properties thanks to the emitted signal. We show here that it is slightly different for rough and erodible surfaces, because of more dissipative processes engaged (friction, grain reorganization, etc). The point (ii) is different from multiple single impacts. We compare experimental situation to a Discrete Elements Method simulation developed by Patrick Richard (IFSTTAR). It computes trajectories of each particle of a granular column collapses, using collisions forces from simplified Hertz's contact model (spring+dashpot) and Verlet's algorithm. We used it to compute synthetic signal generated by the impacts. If the dynamics of beads is well reproduced, waves are different, confirming that "more is different". JF - American Geophysical Union Fall Meeting AU - Bachelet, Vincent AU - Mangeney, Anne AU - de Rosny, Julien AU - Toussaint, Renaud AU - Farin, Maxime AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract NH41A EP - 1790 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832729278?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Prediction+of+rock+falls+properties+thanks+to+emitted+seismic+signal&rft.au=Bachelet%2C+Vincent%3BMangeney%2C+Anne%3Bde+Rosny%2C+Julien%3BToussaint%2C+Renaud%3BFarin%2C+Maxime%3BAnonymous&rft.aulast=Bachelet&rft.aufirst=Vincent&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-10-27 N1 - CODEN - #07548 ER - TY - JOUR T1 - Planetary defense and the high temperature physical properties of meteorites. AN - 1832728657; 2016-089404 AB - The Ames Meteorite Characterization Laboratory is examining the physical properties of a diverse selection of meteorites. Each meteorite will be processed by the full suite of observations and measurements: petrographic/microscopic studies, density, porosity, albedo, shock effects, thermal conductivity, heat capacity, emissivity, and acoustic velocity. Of these measurements, density and porosity are the most studied to date (Macke, 2010; Britt and Consolmagno, 2003). The thermal properties of meteorites are less well understood. Thermal conductivity, heat capacity, and thermal emissivity are important data for a number of applications but especially to understanding the behavior of a meteor as it passes through the atmosphere. Opeil et al. (2010) have shown that meteorites have a thermal conductivities lower than the pure minerals they are composed of by a factor of 3 to 10, with the values coming to a roughly constant number from 150 to 300 K. Calculated conductivity numbers from Yomogida and Matsui (1983) show the H chondrites have the highest conductivity in the range of 3.8 W/m*K at 200 K and then slowly decreases to 3.2 W/m*K at 400 K. Whereas they show the LL chondrites do not reach 1 W/m*K over the temperature range 100 to 400 K. While there have been several high temperature spectroscopic studies of meteorites, to date all experimental data for the physical properties of meteorites were obtained at temperatures below 400 K, since previous studies were made in attempts to understand the formation and evolution of asteroids. Our laboratory will focus on understanding the thermal properties of materials at temperatures above 300 K and, where possible, up to atmospheric entry temperatures. Work on pure minerals has shown that thermal conductivity decreases as temperatures exceed 300 K but it is unknown whether this holds true for meteorites. We will describe our laboratory and procedures, and present some preliminary data, at the meeting. JF - American Geophysical Union Fall Meeting AU - Ostrowski, Daniel R AU - Sears, Derek W G AU - Bryson, Kathryn AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract NH11A EP - 1890 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832728657?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Planetary+defense+and+the+high+temperature+physical+properties+of+meteorites.&rft.au=Ostrowski%2C+Daniel+R%3BSears%2C+Derek+W+G%3BBryson%2C+Kathryn%3BAnonymous&rft.aulast=Ostrowski&rft.aufirst=Daniel&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-10-27 N1 - CODEN - #07548 ER - TY - JOUR T1 - Optimization of the leading penetrator for the HAIV/NIAC mission concept AN - 1832728635; 2016-089413 AB - The mitigation of potentially hazardous objects (PHOs) can be accomplished by a variety of methods including kinetic impactors, gravity tractors and several nuclear explosion options. Depending on the available lead time prior to Earth impact, non-nuclear options can be very effective at altering a PHO's orbit. However if the warning time is short nuclear options are generally deemed most effective at mitigating the hazard. The NAIC mission concept for a nuclear mission has been presented at several meetings, including the last PDC 2015. We use the adaptive mesh radiation-hydrocode RAGE [Gittings et al., Computational Science and Discovery, 1, 015005] to perform detailed simulations of this HAIV mission concept. We use the RAGE code to simulate the crater formation by the kinetic impactor as well as the explosion and energy coupling from the follower nuclear explosive device (NED) timed to detonate below the original surface to enhance the energy coupling. The RAGE code has been well validated for a wide variety of applications. In this study, we show how an improved "penetrator" shaped leader can greatly enhance the depth of burial of the following NED. In this work we have started to optimize the leading impactor into a penetrator that will create a much deeper crater into which the NED will explode. The more deeply buried NED will couple energy to the asteroid much more efficiently than a surface burst. Better coupling to the asteroid has several implications: 1) for smaller asteroids lower yield NEDs could be employed; or 2) for much larger asteroids this mission concept could provide an acceptable asteroid disruption with systems available today. References [1] Gittings, Weaver et al "The RAGE radiation-hydrodynamics Code," Comp. Sci. Disc. 1 (2008) 015005 November 21, 2008 JF - American Geophysical Union Fall Meeting AU - Weaver, Robert AU - Barbee, Brent AU - Wie, Bong AU - Zimmerman, Ben AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract NH11A EP - 1899 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832728635?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Optimization+of+the+leading+penetrator+for+the+HAIV%2FNIAC+mission+concept&rft.au=Weaver%2C+Robert%3BBarbee%2C+Brent%3BWie%2C+Bong%3BZimmerman%2C+Ben%3BAnonymous&rft.aulast=Weaver&rft.aufirst=Robert&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-10-27 N1 - CODEN - #07548 ER - TY - JOUR T1 - Mercury's crustal magnetic field from low-altitude measurements by MESSENGER AN - 1832723560; 2016-091902 AB - Magnetized rocks can record the history of a planet's magnetic field, a key constraint for understanding interior evolution. From orbital vector magnetic field measurements of Mercury taken by the MESSENGER spacecraft at altitudes below 150 km, we have detected fields indicative of crustal magnetization. Fields from non-crustal sources, which dominate the observations even at low altitudes, were estimated and subtracted from the observations using both magnetospheric models and signal filtering. The resulting high-pass filtered fields have amplitudes of a few to 20 nT. The first low-altitude signals were detected over the Suisei Planitia region and were confirmed by upward continuation to be of crustal origin. At least some contribution from thermoremanent magnetization is required to account for these signals, and we infer a lower bound on the average age of magnetization of 3.7-3.9 Ga on the basis of correlation of crustal magnetic fields with volcanic units of that age range. Ancient field strengths that range from those similar to Mercury's present dipole field to earth-like values are consistent with the magnetic field observations and with the low iron content of Mercury's crust derived from MESSENGER elemental composition data. Here, we extend these initial results with observations obtained at spacecraft altitudes below 60 km at all body-fixed longitudes from approximately 40 degrees N to approximately 75 degrees N. The strongest crustal fields occur in the region 120 degrees E to 210 degrees E, and weaker signals characterize the northern volcanic plains. We test the hypothesis that the longest-wavelength crustal field signals in this region reflect magnetization contrasts between the Caloris basin and the surrounding intercrater plains and circum-Caloris plains. We report the spatial distribution of observed crustal fields, together with magnetization models derived from them and the implications of these models, particularly for the depth distribution of sources compatible with the observations. JF - American Geophysical Union Fall Meeting AU - Johnson, Catherine L AU - Phillips, Roger J AU - Purucker, Michael E AU - Anderson, Brian J AU - Byrne, Paul K AU - Denevi, Brett W AU - Fan, Kevin A AU - Feinberg, Joshua M AU - Hauck, Steven A AU - Head, James W, III AU - Korth, Haje AU - James, Peter B AU - Mazarico, Erwan AU - Neumann, Gregory A AU - Philpott, Lydia C AU - Siegler, Matthew A AU - Strauss, Becky E AU - Tsyganenko, Nikolai A (Nikolay A) AU - Solomon, Sean C AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract GP33A EP - 03 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832723560?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+crustal+magnetic+field+from+low-altitude+measurements+by+MESSENGER&rft.au=Johnson%2C+Catherine+L%3BPhillips%2C+Roger+J%3BPurucker%2C+Michael+E%3BAnderson%2C+Brian+J%3BByrne%2C+Paul+K%3BDenevi%2C+Brett+W%3BFan%2C+Kevin+A%3BFeinberg%2C+Joshua+M%3BHauck%2C+Steven+A%3BHead%2C+James+W%2C+III%3BKorth%2C+Haje%3BJames%2C+Peter+B%3BMazarico%2C+Erwan%3BNeumann%2C+Gregory+A%3BPhilpott%2C+Lydia+C%3BSiegler%2C+Matthew+A%3BStrauss%2C+Becky+E%3BTsyganenko%2C+Nikolai+A+%28Nikolay+A%29%3BSolomon%2C+Sean+C%3BAnonymous&rft.aulast=Johnson&rft.aufirst=Catherine&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-10-27 N1 - CODEN - #07548 ER - TY - JOUR T1 - The electrical conductivity of the upper mantle and lithosphere from satellite magnetic signal due to ocean tidal flow AN - 1832723524; 2016-091893 AB - Global electromagnetic (EM) studies provide information on mantle electrical conductivity with the ultimate aim of understanding the composition, structure, and dynamics of Earth's interior. There is great much interest in mapping the global conductivity of the lithosphere and upper mantle (i.e., depths of 10-400 km) because recent laboratory experiments demonstrate that the electrical conductivity of minerals in these regions are greatly affected by small amounts of water or by partial melt. For decades, studies of lithospheric/mantle conductivity were based on interpretation of magnetic data from a global network of observatories. The recent expansion in magnetic data from low-Earth orbiting satellite missions (Orsted, CHAMP, SAC-C, and Swarm) has led to a rising interest in probing Earth from space. The largest benefit of using satellite data is much improved spatial coverage. Additionally, and in contrast to ground-based data, satellite data are overall uniform and very high quality. Probing the conductivity of the lithosphere and upper mantle requires EM variations with periods of a few hours. This is a challenging period range for global EM studies since the ionospheric (Sq) source dominates these periods and has a much more complex spatial structure compared to the magnetospheric ring current. Moreover, satellite-based EM induction studies in principle cannot use Sq data since the satellites fly above the Sq source causing the signals to be seen by the satellite as a purely internal source, thus precluding the separation of satellite Sq signals into internal and external parts. Lastly, magnetospheric and ionospheric sources interact inductively with Earth's conducting interior. Fortunately, there exists an alternative EM source in the Sq period range: electric currents generated by oceanic tides. Tides instead interact galvanically with the lithosphere (i.e. by direct coupling of the source currents in the ocean with the underlying substrate), enabling conductivity estimations at shallower depths. Here we present the first results of determining a 1-D conductivity-depth profile of oceanic crust and upper mantle using the satellite-detected magnetic fields of the M2 ocean tide isolated from the Comprehensive Model CM5. JF - American Geophysical Union Fall Meeting AU - Schnepf, Neesha R AU - Kuvshinov, Alexey V AU - Grayver, Alexander AU - Sabaka, Terence J AU - Olsen, Nils AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract GP31B EP - 02 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832723524?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+electrical+conductivity+of+the+upper+mantle+and+lithosphere+from+satellite+magnetic+signal+due+to+ocean+tidal+flow&rft.au=Schnepf%2C+Neesha+R%3BKuvshinov%2C+Alexey+V%3BGrayver%2C+Alexander%3BSabaka%2C+Terence+J%3BOlsen%2C+Nils%3BAnonymous&rft.aulast=Schnepf&rft.aufirst=Neesha&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-10-27 N1 - CODEN - #07548 ER - TY - JOUR T1 - Disaster response tools for decision support and data discovery; E-DECIDER and GeoGateway AN - 1832723379; 2016-092071 AB - Providing actionable data for situational awareness following an earthquake or other disaster is critical to decision makers in order to improve their ability to anticipate requirements and provide appropriate resources for response. E-DECIDER (Emergency Data Enhanced Cyber-Infrastructure for Disaster Evaluation and Response) is a decision support system producing remote sensing and geophysical modeling products that are relevant to the emergency preparedness and response communities and serves as a gateway to enable the delivery of actionable information to these communities. GeoGateway is a data product search and analysis gateway for scientific discovery, field use, and disaster response focused on NASA UAVSAR and GPS data that integrates with fault data, seismicity and models. Key information on the nature, magnitude and scope of damage, or Essential Elements of Information (EEI), necessary to achieve situational awareness are often generated from a wide array of organizations and disciplines, using any number of geospatial and non-geospatial technologies. We have worked in partnership with the California Earthquake Clearinghouse to develop actionable data products for use in their response efforts, particularly in regularly scheduled, statewide exercises like the recent May 2015 Capstone/SoCal NLE/Ardent Sentry Exercises and in the August 2014 South Napa earthquake activation. We also provided a number of products, services, and consultation to the NASA agency-wide response to the April 2015 Gorkha, Nepal earthquake. We will present perspectives on developing tools for decision support and data discovery in partnership with the Clearinghouse and for the Nepal earthquake. Products delivered included map layers as part of the common operational data plan for the Clearinghouse, delivered through XchangeCore Web Service Data Orchestration, enabling users to create merged datasets from multiple providers. For the Nepal response effort, products included models, damage and loss estimates, and aftershock forecasts that were posted to a NASA information site and delivered directly to end-users such as USAID, OFDA, World Bank, and UNICEF. JF - American Geophysical Union Fall Meeting AU - Glasscoe, Margaret T AU - Donnellan, Andrea AU - Parker, Jay W AU - Granat, Robert A AU - Lyzenga, Gregory A AU - Pierce, Marion Edward AU - Wang, Jun AU - Grant Ludwig, Lisa AU - Eguchi, Ronald T AU - Huyck, Charles Krishna AU - Hu, Zhenghui AU - Chen, Zhiqiang AU - Yoder, Mark R AU - Rundle, John B AU - Rosinski, Anne AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract NH43B EP - 1893 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832723379?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Disaster+response+tools+for+decision+support+and+data+discovery%3B+E-DECIDER+and+GeoGateway&rft.au=Glasscoe%2C+Margaret+T%3BDonnellan%2C+Andrea%3BParker%2C+Jay+W%3BGranat%2C+Robert+A%3BLyzenga%2C+Gregory+A%3BPierce%2C+Marion+Edward%3BWang%2C+Jun%3BGrant+Ludwig%2C+Lisa%3BEguchi%2C+Ronald+T%3BHuyck%2C+Charles+Krishna%3BHu%2C+Zhenghui%3BChen%2C+Zhiqiang%3BYoder%2C+Mark+R%3BRundle%2C+John+B%3BRosinski%2C+Anne%3BAnonymous&rft.aulast=Glasscoe&rft.aufirst=Margaret&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-10-27 N1 - CODEN - #07548 ER - TY - JOUR T1 - New products for near real-time enhanced landslide identification and precipitation monitoring AN - 1832723294; 2016-092092 AB - Nepal and the Himalayan region are hotspots for landslide activity due to mountainous topography, complex terrain, and monsoon rains. Current research in landslide modeling and detection generally requires high resolution imagery with software aided classification or manual digitization by analysts. These methods are plagued by low spatial and temporal accuracy. Addressing issues in conventional measurement, this study combined optical data from Landsat 8, a Digital Elevation Model (DEM) generated from Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), and precipitation data from the Global Precipitation Measurement Mission (GPM) to create two products. The Sudden Landslide Identification Product (SLIP) uses Landsat 8 and the ASTER DEM to identify landslides in near real-time, and provides damage assessments by mapping landslides triggered by precipitation. Detecting Real-time Increased Precipitation (DRIP) monitors precipitation levels extracted from the GPM-IMERG 30-minute product to create alerts in near real-time when current rainfall levels exceed regional threshold values. After a landslide detection is made by SLIP, historical rainfall data from DRIP is analyzed to estimate a date for the detected landslide. Together, DRIP and SLIP will be used by local and regional organizations in Nepal such as the International Centre for Integrated Mountain Development (ICIMOD), as well as the international scientific community to protect lives, preserve infrastructure, and manage local ecosystems. JF - American Geophysical Union Fall Meeting AU - Roberts-Pierel, Justin AU - Ahamed, Aakash AU - Fayne, Jessica AU - Rumsey, Amanda C AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract NH44B EP - 03 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832723294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+products+for+near+real-time+enhanced+landslide+identification+and+precipitation+monitoring&rft.au=Roberts-Pierel%2C+Justin%3BAhamed%2C+Aakash%3BFayne%2C+Jessica%3BRumsey%2C+Amanda+C%3BAnonymous&rft.aulast=Roberts-Pierel&rft.aufirst=Justin&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-10-27 N1 - CODEN - #07548 ER - TY - JOUR T1 - Rates and pathways of methanogenesis in hypersaline environments as determined by (super 13) C-labeling AN - 1832676017; 767475-6 AB - Rates and pathways of methane production were determined from photosynthetic soft microbial mats and gypsum-encrusted endoevaporites collected in hypersaline environments from California, Mexico and Chile, as well as an organic-rich mud from a pond in the El Tatio volcanic fields, Chile. Samples (mud, soft mats and endoevaporites) were incubated anaerobically with deoxygenated site water, and the increase in methane concentration through time in the headspaces of the incubation vials was used to determine methane production rates. To ascertain the substrates used by the methanogens, (super 13) C-labeled methylamines, methanol, dimethylsulfide, acetate or bicarbonate were added to the incubations (one substrate per vial) and the stable isotopic composition of the resulting methane was measured. The vials amended with (super 13) C-labeled methylamines produced the most (super 13) C-enriched methane, generally followed by the (super 13) C-labeled methanol-amended vials. The stable isotope data and the methane production rates were used to determine first order rate constants for each of the substrates at each of the sites. Estimates of individual substrate use revealed that the methylamines produced 55-92 % of the methane generated, while methanol was responsible for another 8-40 %. Copyright 2015 Springer International Publishing Switzerland JF - Biogeochemistry (Dordrecht) AU - Kelley, Cheryl A AU - Chanton, Jeffrey P AU - Bebout, Brad M Y1 - 2015/12// PY - 2015 DA - December 2015 SP - 329 EP - 341 PB - Springer, Dordrecht - Boston - Lancaster VL - 126 IS - 3 SN - 0168-2563, 0168-2563 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832676017?accountid=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=Biogeochemistry+%28Dordrecht%29&rft.atitle=Rates+and+pathways+of+methanogenesis+in+hypersaline+environments+as+determined+by+%28super+13%29+C-labeling&rft.au=Kelley%2C+Cheryl+A%3BChanton%2C+Jeffrey+P%3BBebout%2C+Brad+M&rft.aulast=Kelley&rft.aufirst=Cheryl&rft.date=2015-12-01&rft.volume=126&rft.issue=3&rft.spage=329&rft.isbn=&rft.btitle=&rft.title=Biogeochemistry+%28Dordrecht%29&rft.issn=01682563&rft_id=info:doi/10.1007%2Fs10533-015-0161-9 L2 - http://www.springerlink.com/content/100244/ 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 supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Last updated - 2017-01-24 DO - http://dx.doi.org/10.1007/s10533-015-0161-9 ER - TY - JOUR T1 - The CH-class asteroids; connecting a visible taxonomic class to a 3 mu band shape AN - 1832643752; 772988-33 AB - Asteroids belonging to the Ch spectral taxonomic class are defined by the presence of an absorption near 0.7 �m, which is interpreted as due to Fe-bearing phyllosilicates. Phyllosilicates also cause strong absorptions in the 3 �m region, as do other hydrated and hydroxylated minerals and H (sub 2) O ice. Over the past decade, spectral observations have revealed different 3 �m band shapes in the asteroid population. Although a formal taxonomy is yet to be fully established, the �Pallas-type� spectral group is most consistent with the presence of phyllosilicates. If Ch class and Pallas type are both indicative of phyllosilicates, then all Ch-class asteroids should also be Pallas-type. In order to test this hypothesis, we obtained 42 observations of 36 Ch-class asteroids in the 2 to 4 �m spectral region. We found that 88% of the spectra have 3 �m band shapes most consistent with the Pallas-type group. This is the first asteroid class for which such a strong correlation has been found. Because the Ch class is defined by the presence of an absorption near 0.7 �m, this demonstrates that the 0.7 �m band serves not only as a proxy for the presence of a band in the 3 �m region, but specifically for the presence of Pallas-type bands. There is some evidence for a correlation between band depth at 2.95 �m and absolute magnitude and/or albedo. However, we find only weak correlations between 2.95 �m band depth and semimajor axis. The connection between band depths in the 0.7 and 3 �m regions is complex and in need of further investigation. Copyright (Copyright) 2015. The American Astronomical Society. All rights reserved. JF - The Astronomical Journal (New York) AU - Rivkin, Andrew S AU - Thomas, Cristina A AU - Howell, Ellen S AU - Emery, Joshua P Y1 - 2015/12/01/ PY - 2015 DA - 2015 Dec 01 EP - Paper no. 198 PB - IOP Publishing for American Institute of Physics, Bristol VL - 150 IS - 6 SN - 0004-6256, 0004-6256 KW - silicates KW - C-type asteroids KW - thermal inertia KW - stony meteorites KW - asteroids KW - telescope methods KW - Pallas-type asteroids KW - thermal properties KW - carbonaceous chondrites KW - infrared spectra KW - meteorites KW - hydration KW - absorption KW - sheet silicates KW - taxonomy KW - spectra KW - CM chondrites KW - chondrites KW - Ch-type asteroids KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832643752?accountid=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=The+Astronomical+Journal+%28New+York%29&rft.atitle=The+CH-class+asteroids%3B+connecting+a+visible+taxonomic+class+to+a+3+mu+band+shape&rft.au=Rivkin%2C+Andrew+S%3BThomas%2C+Cristina+A%3BHowell%2C+Ellen+S%3BEmery%2C+Joshua+P&rft.aulast=Rivkin&rft.aufirst=Andrew&rft.date=2015-12-01&rft.volume=150&rft.issue=6&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%2F150%2F6%2F198 L2 - http://www.iop.org/EJ/journal/aj 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 supplied by IOP Publishing Ltd., London, United Kingdom N1 - Number of references - 52 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - absorption; asteroids; C-type asteroids; carbonaceous chondrites; Ch-type asteroids; chondrites; CM chondrites; hydration; infrared spectra; meteorites; Pallas-type asteroids; sheet silicates; silicates; spectra; stony meteorites; taxonomy; telescope methods; thermal inertia; thermal properties DO - http://dx.doi.org/10.1088/0004-6256/150/6/198 ER - TY - JOUR T1 - International Geomagnetic Reference Field; the 12th generation AN - 1832589450; 758453-158 AB - The 12th generation of the International Geomagnetic Reference Field (IGRF) was adopted in December 2014 by the Working Group V-MOD appointed by the International Association of Geomagnetism and Aeronomy (IAGA). It updates the previous IGRF generation with a definitive main field model for epoch 2010.0, a main field model for epoch 2015.0, and a linear annual predictive secular variation model for 2015.0-2020.0. Here, we present the equations defining the IGRF model, provide the spherical harmonic coefficients, and provide maps of the magnetic declination, inclination, and total intensity for epoch 2015.0 and their predicted rates of change for 2015.0-2020.0. We also update the magnetic pole positions and discuss briefly the latest changes and possible future trends of the Earth's magnetic field. Copyright 2015 The Author(s) and Thebault et al. JF - Earth, Planets and Space AU - Thebault, Erwan AU - Finlay, Christopher C AU - Beggan, Ciaran D AU - Alken, Patrick AU - Aubert, Julien AU - Barrois, Olivier AU - Bertrand, Francois AU - Bondar, Tatiana AU - Boness, Axel AU - Brocco, Laura AU - Canet, Elisabeth AU - Chambodut, Aude AU - Chulliat, Arnaud AU - Coisson, Pierdavide AU - Civet, Francois AU - Du, Aimin AU - Fournier, Alexandre AU - Fratter, Isabelle AU - Gillet, Nicolas AU - Hamilton, Brian AU - Hamoudi, Mohamed AU - Hulot, Gauthier AU - Jager, Thomas AU - Korte, Monika AU - Kuang, Weijia AU - Lalanne, Xavier AU - Langlais, Benoit AU - Leger, Jean-Michel AU - Lesur, Vincent AU - Lowes, Frank J AU - Macmillan, Susan AU - Mandea, Mioara AU - Manoj, Chandrasekharan AU - Maus, Stefan AU - Olsen, Nils AU - Petrov, Valeriy AU - Ridley, Victoria AU - Rother, Martin AU - Sabaka, Terence J AU - Saturnino, Diana AU - Schachtschneider, Reyko AU - Sirol, Olivier AU - Tangborn, Andrew AU - Thomson, Alan AU - Toffner-Clausen, Lars AU - Vigneron, Pierre AU - Wardinski, Ingo AU - Zvereva, Tatiana Y1 - 2015/12// PY - 2015 DA - December 2015 EP - Paper no. 79 PB - Terra Scientific Publishing Company (TERRAPUB), Tokyo VL - 67 IS - 1 SN - 1343-8832, 1343-8832 KW - Earth KW - secular variations KW - pole positions KW - mathematical models KW - magnetic field KW - spherical harmonic analysis KW - models KW - International Geomagnetic Reference Field KW - observatories KW - magnetic inclination KW - magnetic declination KW - magnetic intensity KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832589450?accountid=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=Earth%2C+Planets+and+Space&rft.atitle=International+Geomagnetic+Reference+Field%3B+the+12th+generation&rft.au=Thebault%2C+Erwan%3BFinlay%2C+Christopher+C%3BBeggan%2C+Ciaran+D%3BAlken%2C+Patrick%3BAubert%2C+Julien%3BBarrois%2C+Olivier%3BBertrand%2C+Francois%3BBondar%2C+Tatiana%3BBoness%2C+Axel%3BBrocco%2C+Laura%3BCanet%2C+Elisabeth%3BChambodut%2C+Aude%3BChulliat%2C+Arnaud%3BCoisson%2C+Pierdavide%3BCivet%2C+Francois%3BDu%2C+Aimin%3BFournier%2C+Alexandre%3BFratter%2C+Isabelle%3BGillet%2C+Nicolas%3BHamilton%2C+Brian%3BHamoudi%2C+Mohamed%3BHulot%2C+Gauthier%3BJager%2C+Thomas%3BKorte%2C+Monika%3BKuang%2C+Weijia%3BLalanne%2C+Xavier%3BLanglais%2C+Benoit%3BLeger%2C+Jean-Michel%3BLesur%2C+Vincent%3BLowes%2C+Frank+J%3BMacmillan%2C+Susan%3BMandea%2C+Mioara%3BManoj%2C+Chandrasekharan%3BMaus%2C+Stefan%3BOlsen%2C+Nils%3BPetrov%2C+Valeriy%3BRidley%2C+Victoria%3BRother%2C+Martin%3BSabaka%2C+Terence+J%3BSaturnino%2C+Diana%3BSchachtschneider%2C+Reyko%3BSirol%2C+Olivier%3BTangborn%2C+Andrew%3BThomson%2C+Alan%3BToffner-Clausen%2C+Lars%3BVigneron%2C+Pierre%3BWardinski%2C+Ingo%3BZvereva%2C+Tatiana&rft.aulast=Thebault&rft.aufirst=Erwan&rft.date=2015-12-01&rft.volume=67&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Earth%2C+Planets+and+Space&rft.issn=13438832&rft_id=info:doi/10.1186%2Fs40623-015-0228-9 L2 - http://www.terrapub.co.jp/journals/EPS/ 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 supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Number of references - 32 N1 - Document feature - 4 tables, sketch maps N1 - SuppNotes - Includes appendix N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - Earth; International Geomagnetic Reference Field; magnetic declination; magnetic field; magnetic inclination; magnetic intensity; mathematical models; models; observatories; pole positions; secular variations; spherical harmonic analysis DO - http://dx.doi.org/10.1186/s40623-015-0228-9 ER - TY - JOUR T1 - Subsidence in the Central Valley, California 2007-present measured by InSAR AN - 1828846183; 2016-086478 AB - Subsidence caused by groundwater pumping in the rich agricultural area of California's Central Valley has been a problem for decades. Over the last few years, interferometric synthetic aperture radar (InSAR) observations from satellite and aircraft platforms have been used to produce maps of subsidence with approximately cm accuracy. For this study, we have obtained and analyzed Japanese PALSAR data for 2006-2011, Canadian Radarsat-1 data for 2011-2013, Radarsat-2 data for 2012-2015, and ESA's Sentinel-1A for 2015 and produced maps of subsidence for those periods. High resolution InSAR data were also acquired along the California Aqueduct by the NASA UAVSAR from 2013-2015. Using multiple scenes acquired by these systems, we were able to produce the time histories of subsidence at selected locations and transects showing how subsidence varies both spatially and temporally. The maps show that subsidence is continuing in areas with a history of subsidence and that the rates and areas affected have increased due to increased groundwater extraction during the extended western US drought. The high resolution maps from UAVSAR were used to identify and quantify new, highly localized areas of accelerated subsidence along the California Aqueduct that occurred in 2014. The California Department of Water Resources (DWR) funded this work to provide the background and an update on subsidence in the Central Valley to support future policy. Geographic Information System (GIS) files are being furnished to DWR for further analysis of the 4 dimensional subsidence time-series maps. Part of this work was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under contract with NASA. JF - American Geophysical Union Fall Meeting AU - Farr, Tom G AU - Liu, Zhen AU - Jones, Cathleen E AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract H52E EP - 01 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828846183?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Subsidence+in+the+Central+Valley%2C+California+2007-present+measured+by+InSAR&rft.au=Farr%2C+Tom+G%3BLiu%2C+Zhen%3BJones%2C+Cathleen+E%3BAnonymous&rft.aulast=Farr&rft.aufirst=Tom&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - Igneous processes and dike swarms; magnetic signatures in the solar system AN - 1824215059; 2016-082499 AB - Large igneous provinces (LIP) are common in planetary environments: at Mars, Venus, Mercury, Io, and of course the Earth and its Moon. Dike swarms are often associated with LIPs, and are one of the only remaining signatures of a LIP in old, eroded settings. On Earth, dike swarms are often recognized by their magnetic signatures. The World Digital Magnetic Anomaly Map (version 2, 2015) is now based on a higher resolution 5 km grid, so many more dike swarms are apparent. We review this latest compilation. Several new high resolution planetary magnetic data sets have also recently become available, and we review evidence for igneous processes, and dikes, in these new data sets. We also review the prospect for new planetary magnetic data sets that might further elucidate igneous processes. At Mars, for example, we have photogeologic evidence for a host of dike swarms, but because of the high altitude of the magnetic data sets, no magnetic evidence exists. A new technique based on remotely sensing the magnetic field of the atomic Na in micro-meteorite ablation layers offers the promise of improving the spatial resolution by a factor of 2-4 at Mars. JF - American Geophysical Union Fall Meeting AU - Purucker, Michael E AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract GP13B EP - 1305 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824215059?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Igneous+processes+and+dike+swarms%3B+magnetic+signatures+in+the+solar+system&rft.au=Purucker%2C+Michael+E%3BAnonymous&rft.aulast=Purucker&rft.aufirst=Michael&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-09-29 N1 - CODEN - #07548 ER - TY - JOUR T1 - Impacts of climate changes on the future groundwater storage in the High Plains Aquifer AN - 1819894051; 2016-080215 AB - Groundwater contributes approximately 40% of global freshwater use, and it is critical for water supply and associated food production in arid or semi-arid areas during dry seasons. The increasing demand for water and finite water sources have led to long-term groundwater depletion, creating an obstacle to sustainability in several regions of the world under the pressures of population growth and climate change. The High Plains Aquifer System has an area of 450,000 km (super 2) , and is the most pumped aquifer and one of the most important agricultural areas in the United States. In this study, we use coupled climate-hydrological model simulations from the NCAR Community Earth System Model Large Ensemble Project to investigate the groundwater storage changes in the High Plains Aquifer under future climate changes and also to explore how such groundwater storage changes might in turn affect the climate through land-atmosphere coupling. Preliminary results indicate that not only the amount of groundwater recharge declines, but the seasonal variations of groundwater recharge also become smaller, resulting in widespread water table decline in a future warmer climate. We will explore how such variations associate to projected changes in precipitation and evapotranspiration, and feedback to the climate. JF - American Geophysical Union Fall Meeting AU - Wu, Wen-Ying AU - Lo, Min-Hui AU - Wada, Yoshihide AU - Reager, John T AU - Famiglietti, James S AU - Yeh, Pat J F AU - Ducharne, Agnes AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract H11H EP - 1439 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819894051?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Impacts+of+climate+changes+on+the+future+groundwater+storage+in+the+High+Plains+Aquifer&rft.au=Wu%2C+Wen-Ying%3BLo%2C+Min-Hui%3BWada%2C+Yoshihide%3BReager%2C+John+T%3BFamiglietti%2C+James+S%3BYeh%2C+Pat+J+F%3BDucharne%2C+Agnes%3BAnonymous&rft.aulast=Wu&rft.aufirst=Wen-Ying&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-09-16 N1 - CODEN - #07548 ER - TY - JOUR T1 - Efforts to unravel the cause of shrinkage of Lake Chad; development of hydrologic real-time observatory network in the Lake Chad basin AN - 1815676811; 2016-074077 AB - Lake Chad, the fourth largest lake in Africa, is well known as a shrinking lake due to adverse impact of climate change and increased population during drought periods in the 1980s and 1990s. While the shrinkage of the Lake has been studied broadly using remote sensing data, the main cause of shrinkage is still uncertain due to limited availability of ground-truth data. Lack of infrastructure, insecure site conditions, vandalism, and limited site accessibility make it difficult to establish a real-time monitoring network in many parts of Africa including the Lake Chad Basin. For a better understanding of how the Lake responds to the change of weather patterns and other hydrologic processes such as runoff, groundwater flow, and evapotranspiration, a real-time monitoring network is essential in the region. In early 2015, a team from NASA, the Lake Chad Basin Commission, and the University of Missouri-Kansas City set up a hydrologic real-time observatory network in the Chari-Logone catchment, the main feeder of water to the Lake, to monitor meteorological conditions, soil moisture, and groundwater. The TAHMO (Trans-African Hydro-Meteorological Observatory) weather stations were adopted to monitor rainfall, relative humidity, solar radiation, wind speed, and temperature. The present study shows preliminary analysis of the correlations between meteorological and hydrological parameters from real-time monitoring data in the Chari-Logone catchment. We also discuss the importance of partnership with local government and community involvement for data collection and share for sustainable hydrological research in the Lake Chad Basin. JF - American Geophysical Union Fall Meeting AU - Lee, Jejung AU - Ichoku, Charles M AU - Bolten, John D AU - Policelli, Frederik S AU - Djimadoumngar, Kim-Ndor AU - Abdullahi, Sanusi Imran AU - Bila, Mohammed D AU - Djoret, Daira AU - Ibrahim, Goni AU - Selker, John S AU - Hochreutener, Rebecca AU - Annor, Frank O AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract GC41B EP - 1093 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815676811?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Efforts+to+unravel+the+cause+of+shrinkage+of+Lake+Chad%3B+development+of+hydrologic+real-time+observatory+network+in+the+Lake+Chad+basin&rft.au=Lee%2C+Jejung%3BIchoku%2C+Charles+M%3BBolten%2C+John+D%3BPolicelli%2C+Frederik+S%3BDjimadoumngar%2C+Kim-Ndor%3BAbdullahi%2C+Sanusi+Imran%3BBila%2C+Mohammed+D%3BDjoret%2C+Daira%3BIbrahim%2C+Goni%3BSelker%2C+John+S%3BHochreutener%2C+Rebecca%3BAnnor%2C+Frank+O%3BAnonymous&rft.aulast=Lee&rft.aufirst=Jejung&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-09-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Bridging the potential gap in polar ice sheet melt estimates between GRACE and GRACE follow-on using SLR/DORIS data AN - 1815673305; 2016-074007 AB - The GRACE mission has provided invaluable insight into polar ice sheet mass change since 2002. However, the GRACE mission might cease functioning before the August 2017 launch of its successor mission GRACE Follow-On. To mitigate against this potential lack of data, we reconstruct a single set of monthly, global gravity fields using conventional tracking data that would be uninterrupted over the potential gap. These fields would therefore provide continuous coverage of the polar ice sheet mass changes. We combined the conventional tracking data (SLR/DORIS) and GRACE fields via an Empirical Orthogonal Function (EOF) analysis, whereby the conventional tracking data temporal modes are obtained by fitting the SLR/DORIS Stokes coefficients to the GRACE spatial modes via linear least-squares. Combining those temporal modes with GRACE spatial modes yields the reconstructed global gravity fields. The validity of these reconstructed fields is characterized via Monte-Carlo simulations. In these simulations, randomly generated data gaps replace some of the GRACE fields. The mass change curve associated with each simulation is then compared to the original reconstruction (the "truth"). We see that the differences between the truth and the simulations are within the noise of the signal, except for the simulations with the longest gaps. For those, there are non-negligible differences in the trend. However, major short-term mass changes in Greenland are still captured. For example, even without data over the 2013 year (during the hiatus in Greenland ice sheet melt), the reconstructed mass change still captured this specific event. Similarly, the 2009 snowfall anomaly in East Antarctica is also detected in a reconstructed field, despite using simulated GRACE fields with a gap over that 2009 time frame. JF - American Geophysical Union Fall Meeting AU - Talpe, Matthieu AU - Lemoine, Frank G AU - Nerem, R Steven AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract G31B EP - 1117 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815673305?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Bridging+the+potential+gap+in+polar+ice+sheet+melt+estimates+between+GRACE+and+GRACE+follow-on+using+SLR%2FDORIS+data&rft.au=Talpe%2C+Matthieu%3BLemoine%2C+Frank+G%3BNerem%2C+R+Steven%3BAnonymous&rft.aulast=Talpe&rft.aufirst=Matthieu&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-09-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Determination of the amount of peroxy in granite rock using the Seebeck Effect AN - 1815673174; 2016-075882 AB - We present a series of laboratory experiments which provide evidence for peroxy defects in granite, coupled with a determination of the peroxy defect concentration. When peroxy defects are activated they become defect electrons (positive holes) in the oxygen anion sub-lattice. This in essence converts the granite sample to a p-type semiconductor. Our preliminary results of the thermoelectric (Seebeck) effect for granite show that positive charge carriers are being generated (positive gradient: see Figure) in the granite sample and that the concentration of peroxy defects in the granite sample is 1137 + or - 20 ppm. The Seebeck coefficient (alpha ) is the gradient between the voltage (V) and the temperature (T), such that alpha = V /T . One end of the granite sample was placed in a furnace and heated. At 300 degrees C the peroxy defect spins decouple, while at 430 degrees C the peroxy defects dissociate, producing positive holes. When the positive holes are activated their mobility increases and they move towards the cool end of the granite sample through diffusion. This induces a potential difference linked to a thermal gradient between the two ends of the sample. We then fitted the coefficients of two first order polynomials and a point of inflection using a Markov Chain Monte Carlo algorithm. This was done to statistically estimate the uncertainties in the coefficients from a Bayesian statistical analysis. The best fit and corresponding standard error of the reflection point was found to be 426 + or - 5 degrees C. This is in excellent agreement to values, around 430 degrees C, found in the literature. We then find alpha = 18.50 + or - 0.18 mu V K (super -1) above 426 + or - 5 degrees C, which equates to a carrier concentration of 1.16 X 10 (super 20) cm (super -3) compared to the carrier concentrations of heavily doped semiconductors, which are on the order of 10 (super 21) cm (super -3) . This then gives a peroxy defect concentration of 1137 + or - 20 ppm. JF - American Geophysical Union Fall Meeting AU - Tregloan-Reed, Jeremy James AU - Tarnas, Jesse AU - Plante, Zach AU - Freund, Friedemann T AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract MR21A EP - 2605 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815673174?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Determination+of+the+amount+of+peroxy+in+granite+rock+using+the+Seebeck+Effect&rft.au=Tregloan-Reed%2C+Jeremy+James%3BTarnas%2C+Jesse%3BPlante%2C+Zach%3BFreund%2C+Friedemann+T%3BAnonymous&rft.aulast=Tregloan-Reed&rft.aufirst=Jeremy&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-09-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Student journalists in the field; bridging the gap between science and communication AN - 1815673070; 2016-075264 AB - The Remote, In Situ, and Synchrotron Studies for Science and Exploration (RIS4E) team is one of nine nodes of NASA's Solar System Exploration Research Virtual Institute. A core goal of the RIS4E Education and Communication (E&C) plan is to increase the accessibility of science to the general public, both by teaching scientists how to communicate their work to the public and by training the next generation of science journalists. During the Spring 2015 semester, eight Stony Brook University journalism students, ranging from Sophomores through M.A. students, participated in a new Science Journalism course in the School of Journalism. During the semester, the students learned about the science being conducted by the RIS4E team, took field trips to labs, interviewed scientists and graduate students, and produced print and video pieces about the science and the scientists. As a capstone project, five of the students, along with a professor and TA, were embedded with the RIS4E field geology team during their 2015 field season at the 1974 Kilauea lava flow on the Big Island of Hawaii. During their time in Hawaii, the journalism students had complete access to the field team, both during work and after-work hours. For each of the students, it was their first exposure to the practice of science, made possible through the experience of watching scientists formulate and test hypotheses in real time. They posted daily blog updates about the work being done by the field team and acquired dozens of hours of video footage to be produced into longer pieces. This presentation will describe the unique Stony Brook Science Journalism course and the experiences of the students both in the classroom and in the field. We will highlight both the successes and the lessons learned, for both the students and the scientists involved, and discuss our plans to conduct a second class in 2017, when the students will accompany the RIS4E field team to the Potrillo Volcanic Field in New Mexico. JF - American Geophysical Union Fall Meeting AU - Glotch, T D AU - Jones, A P AU - Bleacher, L AU - Selvin, Barbara AU - Firstman, Richard AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract ED42A EP - 03 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815673070?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Student+journalists+in+the+field%3B+bridging+the+gap+between+science+and+communication&rft.au=Glotch%2C+T+D%3BJones%2C+A+P%3BBleacher%2C+L%3BSelvin%2C+Barbara%3BFirstman%2C+Richard%3BAnonymous&rft.aulast=Glotch&rft.aufirst=T&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-09-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Antarctic ice sheet mass loss, glacio-isostatic adjustment and surface processes from a Bayesian combination of gravimetry, altimetry and GPS data AN - 1815673052; 2016-075626 AB - Constraining past ice mass changes, identifying their cause(s) and determining rigorous error estimates, is important for closing the sea level budget and as an input for and test of numerical models. Despite the progress that has been made over the last decade, significant differences remain for estimates of the mass evolution of the Antarctic ice sheet. These estimates often yield conflicting results with non-overlapping error bars, while the commonly adopted use of different forward models to isolate and remove the effects of glacio-isostatic adjustment (GIA) and surface mass balance (SMB) processes introduces another source of uncertainty which is hard to quantify. To address both these issues, we present a statistical modeling approach that utilizes a spatio-temporal Bayesian hierarchical model, alongside novel dimensional reduction methods to allow the solution to remain tractable in the presence of the large number (> 10 (super 7) ) of observations. We solve simultaneously for GIA, surface processes, elastic rebound, firn compaction and ice dynamics. Over 2003-2013, Antarctica has been losing mass at a rate of -82+ or -23 Gt/yr. West Antarctica is the largest contributor with -114+ or -10 Gt/yr, mainly triggered by high thinning rates of glaciers draining into the Amundsen Sea Embayment. The Antarctic Peninsula has experienced a dramatic increase in mass loss in the last decade, with a mean rate of -25+ or -6 Gt/yr, and significantly higher values for the most recent years following the destabilization of the Southern Antarctic Peninsula around 2010. The total mass loss is partly compensated by a significant mass gain of 57+ or -20 Gt/yr in East Antarctica due to positive SMB anomalies and an interesting small dynamic component. We compare our time series of SMB anomalies with those from RACMO-2.3, obtaining good agreement for the large-scale patterns, although differences arise at a basin scale. Also, a data-driven GIA solution is obtained which could be used to constrain and validate existing and future forward models. JF - American Geophysical Union Fall Meeting AU - Bamber, Jonathan L AU - Martin, Alba AU - Zammit-Mangion, Andrew AU - Clarke, Peter J AU - Flament, Thomas AU - Helm, Veit AU - King, Matt A AU - Luthcke, Scott B AU - Petrie, Liz AU - Remy, Frederique AU - Wouters, Bert AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract G42A EP - 04 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815673052?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+ice+sheet+mass+loss%2C+glacio-isostatic+adjustment+and+surface+processes+from+a+Bayesian+combination+of+gravimetry%2C+altimetry+and+GPS+data&rft.au=Bamber%2C+Jonathan+L%3BMartin%2C+Alba%3BZammit-Mangion%2C+Andrew%3BClarke%2C+Peter+J%3BFlament%2C+Thomas%3BHelm%2C+Veit%3BKing%2C+Matt+A%3BLuthcke%2C+Scott+B%3BPetrie%2C+Liz%3BRemy%2C+Frederique%3BWouters%2C+Bert%3BAnonymous&rft.aulast=Bamber&rft.aufirst=Jonathan&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-09-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Identification and estimation of postseismic deformation; implications for plate motion models, models of the earthquake cycle, and terrestrial reference frame definition AN - 1815672972; 2016-075491 AB - Postseismic deformation indicates a viscoelastic response of the lithosphere. It is critical, then, to identify and estimate the extent of postseismic deformation in both space and time, not only for its inherent information on crustal rheology and earthquake physics, but also since it must considered for plate motion models that are derived geodetically from the "steady-state" interseismic velocities, models of the earthquake cycle that provide interseismic strain accumulation and earthquake probability forecasts, as well as terrestrial reference frame definition that is the basis for space geodetic positioning. As part of the Solid Earth Science ESDR System) SESES project under a NASA MEaSUREs grant, JPL and SIO estimate combined daily position time series for over 1800 GNSS stations, both globally and at plate boundaries, independently using the GIPSY and GAMIT software packages, but with a consistent set of a prior epoch-date coordinates and metadata. The longest time series began in 1992, and many of them contain postseismic signals. For example, about 90 of the global GNSS stations out of more than 400 that define the ITRF have experienced one or more major earthquakes and 36 have had multiple earthquakes; as expected, most plate boundary stations have as well. We quantify the spatial (distance from rupture) and temporal (decay time) extent of postseismic deformation. We examine parametric models (log, exponential) and a physical model (rate- and state-dependent friction) to fit the time series. Using a PCA analysis, we determine whether or not a particular earthquake can be uniformly fit by a single underlying postseismic process--otherwise we fit individual stations. Then we investigate whether the estimated time series velocities can be directly used as input to plate motion models, rather than arbitrarily removing the apparent postseismic portion of a time series and/or eliminating stations closest to earthquake epicenters. JF - American Geophysical Union Fall Meeting AU - Kedar, Sharon AU - Bock, Yehuda AU - Moore, Angelyn W AU - Argus, Donald F AU - Fang, P AU - Liu, Zhen AU - Haase, Jennifer Susan AU - Su, Lina AU - Owen, Susan E AU - Goldberg, Dara AU - Squibb, Melinda B AU - Geng, Jianghui AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract G13A EP - 1004 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815672972?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+and+estimation+of+postseismic+deformation%3B+implications+for+plate+motion+models%2C+models+of+the+earthquake+cycle%2C+and+terrestrial+reference+frame+definition&rft.au=Kedar%2C+Sharon%3BBock%2C+Yehuda%3BMoore%2C+Angelyn+W%3BArgus%2C+Donald+F%3BFang%2C+P%3BLiu%2C+Zhen%3BHaase%2C+Jennifer+Susan%3BSu%2C+Lina%3BOwen%2C+Susan+E%3BGoldberg%2C+Dara%3BSquibb%2C+Melinda+B%3BGeng%2C+Jianghui%3BAnonymous&rft.aulast=Kedar&rft.aufirst=Sharon&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - Deep source model for Nevado del Ruiz Volcano, Colombia, constrained by interferometric synthetic aperture radar observations AN - 1815672968; 2016-075613 AB - Nevado del Ruiz (NRV) is part of a large volcano complex in the northern Andes of Colombia with a large glacier that erupted in 1985, generating a lahar killing over 23,000 people in the city of Armero and 2,000 people in the town of Chinchina. NRV is the most active volcano in Colombia and since 2012 has generated small eruptions, with no casualties, and constant gas and ash emissions. Interferometric synthetic aperture radar (InSAR) observations from ascending and descending track RADARSAT-2 data show a large (>20 km) wide inflation pattern apparently starting in late 2011 to early 2012 and continuing to the time of this study in early 2015 at a LOS rate of over 3-4 cm/yr (Fig. 1). Volcano pressure volume models for both a point source (Mogi) and a spheroidal (Yang) source find solutions over 14 km beneath the surface, or 10 km below sea level, and centered 10 km to the SW of Nevado del Ruiz Volcano. The spheroidal source has a roughly horizontal long axis oriented parallel to the Santa Isabel-Nevado del Ruiz volcanic line and perpendicular to the ambient compressive stress direction. Its solution provides a statistically significant improvement in fit compared to the point source, though consideration of spatially correlated noise sources may diminish this significance. Stress change computations do not favor one model over the other but show that propagating dikes would become trapped in sills, leading to a more complex pathway to the surface and possibly explaining the significant lateral distance between the modeled sources and Nevado del Ruiz Volcano. JF - American Geophysical Union Fall Meeting AU - Lundgren, Paul AU - Samsonov, Sergey V AU - Lopez, Cristian M AU - Ordonez, Milton AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract G41A EP - 1016 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815672968?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Deep+source+model+for+Nevado+del+Ruiz+Volcano%2C+Colombia%2C+constrained+by+interferometric+synthetic+aperture+radar+observations&rft.au=Lundgren%2C+Paul%3BSamsonov%2C+Sergey+V%3BLopez%2C+Cristian+M%3BOrdonez%2C+Milton%3BAnonymous&rft.aulast=Lundgren&rft.aufirst=Paul&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-09-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Accuracy of real-time tsunami forecast based on real-time data AN - 1815672265; 2016-075660 AB - The goal of tsunami warning as a system for prediction of potential tsunami impact at coastlines requires rapid detection, assessment and model assimilation of available tsunami real-time data. Historically, the earthquake magnitude has been used as a proxy of tsunami impact estimates. Real-time seismic data has been available for real-time processing for decades and ample amount of seismic data is available for an elaborate post event analysis. This measure of tsunami impact carries significant uncertainties for quantitative tsunami impact estimates, since the ratio between the energy of an earthquake and resultant tsunami (averaging at around 0.1%) varies significantly from one event to another. The other historical stream of data for tsunami warnings have been tide-gage real-time data that are difficult to interpret and have limited forecast value, since tide gages record tsunami impacting the coastlines already. New real-time data streams that have become available to tsunami warning system include real-time deep-ocean tsunami detection (DART system) and GNSS real-time data streams. The data provide new opportunity for real-time tsunami forecast systems. Assimilation of these new data into tsunami forecast capability has potential of increasing the accuracy of the tsunami forecast, thus reducing false alarm rates, providing quick practical tsunami forecast products and, ultimately saving more lives during the tsunami warning event. Implication of including new real-time data on tsunami forecast accuracy will be discussed. JF - American Geophysical Union Fall Meeting AU - Titov, Vasily V AU - Song, Yuhe T AU - Tang, Liujuan AU - Wei, Yong AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract G44A EP - 03 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815672265?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Accuracy+of+real-time+tsunami+forecast+based+on+real-time+data&rft.au=Titov%2C+Vasily+V%3BSong%2C+Yuhe+T%3BTang%2C+Liujuan%3BWei%2C+Yong%3BAnonymous&rft.aulast=Titov&rft.aufirst=Vasily&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-09-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - The influence of the terrestrial reference frame on studies of sea level change AN - 1815672257; 2016-075668 AB - The terrestrial reference frame (TRF) provides the foundation for the accurate monitoring of sea level using both ground-based (tide gauges) and space-based (satellite altimetry) techniques. For the latter, tide gauges are also used to monitor drifts in the satellite instruments over time. The accuracy of the terrestrial reference frame (TRF) is thus a critical component for both types of sea level measurements. The TRF is central to the formation of geocentric sea-surface height (SSH) measurements from satellite altimeter data. The computed satellite orbits are linked to a particular TRF via the assumed locations of the ground-based tracking systems. The manner in which TRF errors are expressed in the orbit solution (and thus SSH) is not straightforward, and depends on the models of the forces underlying the satellite's motion. We discuss this relationship, and provide examples of the systematic TRF-induced errors in the altimeter derived sea-level record. The TRF is also crucial to the interpretation of tide-gauge measurements, as it enables the separation of vertical land motion from volumetric changes in the water level. TRF errors affect tide gauge measurements through GNSS estimates of the vertical land motion at each tide gauge. This talk will discuss the current accuracy of the TRF and how errors in the TRF impact both satellite altimeter and tide gauge sea level measurements. We will also discuss simulations of how the proposed Geodetic Reference Antenna in SPace (GRASP) satellite mission could reduce these errors and revolutionize how reference frames are computed in general. JF - American Geophysical Union Fall Meeting AU - Nerem, R Steven AU - Bar-Sever, Yoaz E AU - Haines, Bruce J AU - Desai, Shailen AU - Heflin, Michael B AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract G52A EP - 01 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815672257?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+influence+of+the+terrestrial+reference+frame+on+studies+of+sea+level+change&rft.au=Nerem%2C+R+Steven%3BBar-Sever%2C+Yoaz+E%3BHaines%2C+Bruce+J%3BDesai%2C+Shailen%3BHeflin%2C+Michael+B%3BAnonymous&rft.aulast=Nerem&rft.aufirst=R&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-09-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - High resolution geodetic measurements of interseismic deformation across the Ventura Basin, CA AN - 1815672196; 2016-075499 AB - A portion of the total motion across the Pacific-North American plate boundary in southern California is accommodated by a complex network of seismically-active oblique-reverse slip faults in the Transverse Ranges region. Most notably, existing geologic and geophysical data support the presence of a large seismogenic reverse fault, the Ventura fault, which has a previously estimated slip rate of 4.4-6.9 mm/yr. The Ventura fault appears to link with several other faults and may represent a potential source for future approximately M8.0 earthquakes. A reverse fault of this size and slip rate should be detectable with modern geodetic techniques; however, our past attempts to use continuous GPS data to map out the interseismic strain patterns did not clearly delineate the fault's slip rate and/or locking depth. Accurate measurement of interseismic deformation across the Ventura fault requires further examination with a spatially denser data set. We, therefore, combine GPS velocities from the current Plate Boundary Observatory Network and the Southern California Earthquake Center's Crustal Motion map into a single local reference frame to provide a dense GPS network for strain rate inversions. Additionally, we process InSAR data from the Envisat and ERS satellites using the persistent scatterer method resulting in >1 million line of sight velocity estimates throughout the region. Velocity profiles across the InSAR data do not clearly delineate any significant line of sight strains associated with the Ventura fault, but strain rate inversions of the GPS network reveal clear horizontal contraction gradients along the fault structure. Mechanical models of the Ventura fault predict average slip rates between 2.7-3.2 mm/yr, but with maximum slip rates near the coast, where the existing long term slip rate estimates were made. Thus, the existing slip rate estimate may have been made in a location with nearly maximum slip rates for the Ventura fault and may overestimate the seismic hazard. JF - American Geophysical Union Fall Meeting AU - Marshall, Scott T AU - Funning, Gareth AU - Owen, Susan E AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract G13A EP - 1012 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815672196?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=High+resolution+geodetic+measurements+of+interseismic+deformation+across+the+Ventura+Basin%2C+CA&rft.au=Marshall%2C+Scott+T%3BFunning%2C+Gareth%3BOwen%2C+Susan+E%3BAnonymous&rft.aulast=Marshall&rft.aufirst=Scott&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-09-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Interseismic strain accumulation in metropolitan Los Angeles distinguished from oil and water management using InSAR and GPS AN - 1815672184; 2016-075508 AB - Thesis. InSAR measurements from 1992 to 2012 are detecting deformation due to oil pumping and groundwater changes throughout metropolitan Los Angeles. This is allowing elastic strain build up on blind thrusts beneath the city to be accurately evaluated using GPS. Oil Fields. Pumping and repressurization of oil fields have generated substantial displacement in metropolitan Los Angeles, causing Beverly Hills, downtown, and Whittier to subside at 3-10 mm/yr and Santa Fe Springs and La Mirada to rise at 5-9 mm/yr. Aquifers. Displacements of the Santa Ana and San Gabriel Valley aquifers accumulate in response to sustained changes in groundwater over periods of either drought or heavy precipitation. Santa Ana aquifer has subsided nearly 0.1 m in response to lowering of the groundwater level by about 25 m over the past 18 years. Anthropogenic Vs. Tectonic Motion. We are assessing horizontal motions due to changes groundwater using an empirical relationship established on the basis of seasonal oscillations of Santa Ana aquifer. Anthropogenic horizontal motion is estimated to be proportional to the directional gradient in vertical motion inferred with InSAR. We are finding this rough approximation to be quite useful for evaluating deviations of GPS positions from a constant velocity. We are also constructing Mogi models of volume change in oil fields to evaluate GPS deviations. Earthquake Strain Buildup on Blind Thrust Faults. NNE contraction perpendicular to the big restraining bend in the San Andreas fault is fastest not immediately south of the San Andreas in the San Gabriel Mountains, but instead 50 km south of the fault in northern metropolitan Los Angeles. An elastic model of interseismic strain accumulation fit to GPS data and incorporating a 1D approximation of the rheology of the Los Angeles basin indicates the deep segment of the Puente Hills (-upper Elysian Park) Thrust to be slipping at 9+ or -2 mm/yr beneath a locking depth of 12+ or -5 km. Please see also our complementary study [Rollins et al., AGU 2015] exploring elastic models with 3D geometry. This 9 mm/yr geodetic slip rate for the Puente Hills Thrust system is faster than the 3-5 mm/yr cumulative geologic slip rate for the upper Elysian Park and Puente Hills Thrust, indicating that M 6.5 and M 7 earthquakes in metropolitan Los Angeles are more frequent than forecast. JF - American Geophysical Union Fall Meeting AU - Argus, Donald F AU - Agram, Piyush S AU - Rollins, Chris AU - Avouac, Jean-Philippe AU - Barbot, Sylvain AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract G13B EP - 07 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815672184?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Interseismic+strain+accumulation+in+metropolitan+Los+Angeles+distinguished+from+oil+and+water+management+using+InSAR+and+GPS&rft.au=Argus%2C+Donald+F%3BAgram%2C+Piyush+S%3BRollins%2C+Chris%3BAvouac%2C+Jean-Philippe%3BBarbot%2C+Sylvain%3BAnonymous&rft.aulast=Argus&rft.aufirst=Donald&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-09-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - On the response of the Black Sea elevation to the Mediterranean Sea level AN - 1815672171; 2016-075657 AB - The response of the Black Sea elevation to sea level changes in the Mediterranean is studied using satellite altimetry data and a linear analytical model. We show that winds near the Strait of Gibraltar and over the Aegean Sea are able to dynamically change sea level in the Mediterranean and Black Seas, respectively. The nonseasonal sea level in the Black Sea is coherent with that in the Aegean Sea and Sea of Marmara, but lags them by 10-38 days at sub-annual periods. The observed time lag is mainly due to friction that constrains the exchange through Bosphorus, and it represents the time required for the Black Sea level to adjust to locally and remotely forced changes of sea level in the Aegean Sea. The analytical model, employed in this study, is able to explain the amplitude and, to a large degree, phase of the response of the observed Black Sea elevation to sea level changes in the Sea of Marmara and Aegean Sea. The response is due to the barotropic flow through the Bosphorus Strait constrained mainly by friction. The geostrophic control is found to be important only at low and unrealistic friction (lambda (sub s) < 1 X 10 (super -5) s (super -1) ). Using a realistic friction coefficient (lambda (sub s) = 3.8 X 10 (super -5) s (super -1) ), we find that the magnitude of the response increases from 50 to 100% of the disturbance magnitude (10 cm) and the time lag increases from 17 to 25 days at period between 100 and 500 days. The inclusion of fresh water fluxes into the Black Sea in the model increases the magnitude of the response by about 5 + or - 1.5 cm, and the inclusion of the along-strait wind in the direction of the Black/Marmara Sea increases/decreases the magnitude of the response by about 1 cm at periods greater than 150 days. The phase of the response appears to be insensitive to both the wind stress and freshwater flux. JF - American Geophysical Union Fall Meeting AU - Volkov, Denis AU - Johns, William E AU - Belonenko, Tatyana V AU - Landerer, Felix W AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract G43B EP - 1054 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815672171?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+response+of+the+Black+Sea+elevation+to+the+Mediterranean+Sea+level&rft.au=Volkov%2C+Denis%3BJohns%2C+William+E%3BBelonenko%2C+Tatyana+V%3BLanderer%2C+Felix+W%3BAnonymous&rft.aulast=Volkov&rft.aufirst=Denis&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-09-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Geodetic Imaging Lidar; applications for high-accuracy, large area mapping with NASA's upcoming high-altitude waveform-based airborne laser altimetry facility AN - 1815672078; 2016-075467 AB - Full waveform laser altimetry has demonstrated its ability to capture highly-accurate surface topography and vertical structure (e.g. vegetation height and structure) even in the most challenging conditions. NASA's high-altitude airborne laser altimeter, LVIS (the Land Vegetation, and Ice Sensor) has produced high-accuracy surface maps over a wide variety of science targets for the last 2 decades. Recently NASA has funded the transition of LVIS into a full-time NASA airborne Facility instrument to increase the amount and quality of the data and to decrease the end-user costs, to expand the utilization and application of this unique sensor capability. Based heavily on the existing LVIS sensor design, the Facility LVIS instrument includes numerous improvements for reliability, resolution, real-time performance monitoring and science products, decreased operational costs, and improved data turnaround time and consistency. The development of this Facility instrument is proceeding well and it is scheduled to begin operations testing in mid-2016. A comprehensive description of the LVIS Facility capability will be presented along with several mission scenarios and science applications examples. The sensor improvements included increased spatial resolution (footprints as small as 5 m), increased range precision (sub-cm single shot range precision), expanded dynamic range, improved detector sensitivity, operational autonomy, real-time flight line tracking, and overall increased reliability and sensor calibration stability. The science customer mission planning and data product interface will be discussed. Science applications of the LVIS Facility include: cryosphere, territorial ecology carbon cycle, hydrology, solid earth and natural hazards, and biodiversity. JF - American Geophysical Union Fall Meeting AU - Blair, James Bryan AU - Rabine, David AU - Hofton, Michelle A AU - Citrin, Elizabeth A AU - Luthcke, Scott B AU - Misakonis, Amy AU - Wake, Shane W AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract G11B EP - 0985 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815672078?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Geodetic+Imaging+Lidar%3B+applications+for+high-accuracy%2C+large+area+mapping+with+NASA%27s+upcoming+high-altitude+waveform-based+airborne+laser+altimetry+facility&rft.au=Blair%2C+James+Bryan%3BRabine%2C+David%3BHofton%2C+Michelle+A%3BCitrin%2C+Elizabeth+A%3BLuthcke%2C+Scott+B%3BMisakonis%2C+Amy%3BWake%2C+Shane+W%3BAnonymous&rft.aulast=Blair&rft.aufirst=James&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-09-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Studies of grounding line migration over Rutofrd ice stream using 3D short repeat-time series from multi-track InSAR acquisitions AN - 1815670919; 2016-075531 AB - It has long been known that basal mechanics of ice streams are sensitive to short-timescale hourly to seasonal forcings, such as water pressure fluctuations and tidal loading as well as long-timescale (yearly to decadal) thinning. Designing SAR short repeat time observations to cover nearly an entire test-site in Antarctica from ascending and descending orbital directions, using every available SAR satellite is fundamental for understanding a new class of phenomena, underlying the physics of glaciers and ice streams. Understanding grounding-line dynamics is necessary for predictions of long-term ice-sheet stability. However, despite growing observations of the tidal influence on grounding-line migration, this short-timescale migration is poorly understood, with most modeling attempts assuming beam theory to calculate displacements. Knowing the position of the grounding line with accuracy is important for the global mass balance of ice sheets or for quantitatively modeling the mechanical interaction between ice shelves and ice sheets. Here we present a general method for retrieving three dimensional displacement vector given a set of multiple tracks, multiple geometry SAR acquisitions. The algorithm extends the single line of sight mathematical framework to the four spatial and temporal dimensions including both range and azimuth measurements. We designed COSMO-SkyMed (CSK) observations of Rutford Ice Stream to cover nearly the grounding zone from ascending and descending orbital directions using every available CSK satellite. This spatially comprehensive observational scheme allowed us to derive time series of the 3-dimensional surface displacement for the grounding zone, facilitating studies of ice stream mechanics and tidally induced grounding line migrations with unprecedented spatial extent and temporal resolution. Having a constellation with occasional 1-day repeat time and an average 4-days repeat time is beneficial when looking at displacements of more than a meter per day. We compared our results with GPS time series and optical offset maps showing the fundamental role of short repeat time-series to disentangle secular velocities from tidal effects deforming the ice stream periodically. JF - American Geophysical Union Fall Meeting AU - Milillo, Pietro AU - Minchew, Brent M AU - Riel, Bryan V AU - Simons, Mark AU - Gardner, Alex S AU - Agram, Piyush S AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract G21B EP - 1033 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815670919?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Studies+of+grounding+line+migration+over+Rutofrd+ice+stream+using+3D+short+repeat-time+series+from+multi-track+InSAR+acquisitions&rft.au=Milillo%2C+Pietro%3BMinchew%2C+Brent+M%3BRiel%2C+Bryan+V%3BSimons%2C+Mark%3BGardner%2C+Alex+S%3BAgram%2C+Piyush+S%3BAnonymous&rft.aulast=Milillo&rft.aufirst=Pietro&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-09-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Sub-meter desiccation crack patterns imaged by Curiosity at Gale Crater on Mars shed additional light on former lakes evident from examined outcrops AN - 1815670697; 2016-075961 AB - Small-scale desiccation crack patterns (mudcrack-like arrays of uniform approximately 0.1 to 1 m polygonal domains separated by linear or curving cracks in exposed bedding) imaged by Curiosity in Gale Crater, Mars complement a wealth of diverse data obtained from exposures of sedimentary rocks that point to deposition "in fluvial, deltaic, and lacustrine environments" including an "intracrater lake system likely [to have] existed intermittently for thousands to millions of years ..."(e.g. Grotzinger et al., 2015, Science, submitted). We interpret these mudcrack-like patterns, found on many of the bedrock exposures imaged by Curiosity, as desiccation cracks that developed either of two ways: 1) at the soft sediment-air interface like common mudcracks, or 2) at or below the sediment-water interface by synaeresis or diastasis (involving differential compaction). In the context of recent studies of terrestrial mudcracks, and cracks formed experimentally in various wet powders as they loose moisture, these desiccation features reflect diverse aspects of the formative environment. If they formed as mudcracks, some of the lakes were shallow enough to permit the recurrent drying and wetting that can lead to the geometric regularity characteristic of several of sets of mudcracks. Moreover, the water likely contained little suspended sediment otherwise the mudcracks would be buried too rapidly for the crack pattern to persist and to mature into regular polygonal patterns. The preservation of these desiccation crack patterns does not require, but does not exclude, deep burial and exhumation. Although invisible from satellite because of their size, a multitude of Mastcam and Navcam images reveals these informative features in considerable detail. These images complement much evidence, mostly from HiRISE data from several regions, suggesting that potential desiccation polygons on larger scales may be more common on the surface of Mars than generally recognized. JF - American Geophysical Union Fall Meeting AU - Hallet, Bernard AU - Sletten, Ronald S AU - Mangold, Nicolas AU - Oehler, Dorothy Z AU - Williams, Rebecca M E AU - Bish, David L AU - Heydari, Ezat AU - Rubin, David M AU - Rowland, Scott Kanieta AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract NG23B EP - 1787 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815670697?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Sub-meter+desiccation+crack+patterns+imaged+by+Curiosity+at+Gale+Crater+on+Mars+shed+additional+light+on+former+lakes+evident+from+examined+outcrops&rft.au=Hallet%2C+Bernard%3BSletten%2C+Ronald+S%3BMangold%2C+Nicolas%3BOehler%2C+Dorothy+Z%3BWilliams%2C+Rebecca+M+E%3BBish%2C+David+L%3BHeydari%2C+Ezat%3BRubin%2C+David+M%3BRowland%2C+Scott+Kanieta%3BAnonymous&rft.aulast=Hallet&rft.aufirst=Bernard&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-09-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - The influence of atmospheric modeling errors on GRACE estimates of mass loss in Greenland and Antarctica AN - 1815669409; 2016-073992 AB - The Gravity Recovery and Climate Experiment (GRACE) has produced robust estimates of the contributions of the Greenland and Antarctic ice sheets to sea level rise. A limiting factor in these estimates is the background model (AOD1B) used to remove the atmospheric contribution to the gravity signal. We test the accuracy of this background model against in situ pressure measurements in Greenland and Antarctica and find significant evidence of drift in the model relative to the instruments. Furthermore, we find that the ECMWF Reanalysis (ERA) Interim product better agrees with the in situ data over Greenland and Antarctica. Relative to ERA, biases in atmospheric pressure mask additional trends over both ice sheets and a significant acceleration in mass loss over Antarctica. Agreement with in situ measurements affirms the viability of ERA-Interim for correcting Level 2 GRACE products over these regions. JF - American Geophysical Union Fall Meeting AU - Hardy, Ryan A AU - Nerem, R Steven AU - Wiese, David N AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract G31A EP - 1099 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815669409?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+influence+of+atmospheric+modeling+errors+on+GRACE+estimates+of+mass+loss+in+Greenland+and+Antarctica&rft.au=Hardy%2C+Ryan+A%3BNerem%2C+R+Steven%3BWiese%2C+David+N%3BAnonymous&rft.aulast=Hardy&rft.aufirst=Ryan&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-09-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Validating crustal velocities derived from the IDS contribution to ITRF201 AN - 1815667494; 2016-073969 AB - In the context of the ITRF2014, the IDS Combination Center delivered 1140 weekly SINEX files to the IERS containing DORIS station positions and Earth orientation parameters from January 1993 to December 2014 (series IDS 09). For each DORIS station, we computed the mean position and velocity by stacking the IDS 09 weekly solutions and combining them with both DORIS internal local ties (3-D vector between two successive beacon installations at the same DORIS site) from IGN and a discontinuity file. The first objective of this study is to compare DORIS horizontal velocities to estimations from tectonic models such as GEODVEL and NNR-MORVEL56. The second purpose is to evaluate DORIS vertical velocities with respect to Global Isostatic Adjustment models (for Greenland, Fennoscandia, Iceland and Antarctica sites) such as ICE-6G (sub C) , and with respect to the latests GPS solution at the University of La Rochelle. Sites showing large differences in either horizontal (ex: Arequipa, Dionysos/Gavdos, Goldstone, Manila and Santiago) or vertical velocities (ex: Rothera, Thule and Yellowknife) will be of special concern. JF - American Geophysical Union Fall Meeting AU - Moreaux, Guilhem AU - Soudarin, Laurent AU - Gravelle, Mederic AU - Santamaria-Gomez, Alvaro AU - Lemoine, Frank G AU - Willis, Pascal AU - Ferrage, Pascale AU - Argus, Donald F AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract G23B EP - 1066 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1815667494?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Validating+crustal+velocities+derived+from+the+IDS+contribution+to+ITRF201&rft.au=Moreaux%2C+Guilhem%3BSoudarin%2C+Laurent%3BGravelle%2C+Mederic%3BSantamaria-Gomez%2C+Alvaro%3BLemoine%2C+Frank+G%3BWillis%2C+Pascal%3BFerrage%2C+Pascale%3BArgus%2C+Donald+F%3BAnonymous&rft.aulast=Moreaux&rft.aufirst=Guilhem&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-09-01 N1 - CODEN - #07548 ER - TY - JOUR T1 - Melt water-driven gully formation in Moni Crater, Mars AN - 1812219105; 2016-070483 AB - The southern mid-latitude 5-km diameter Moni Crater (47S, 18.5E) in Noachis Terra is typical of many small craters of this latitude, containing both gullies on its walls and arcuate ridges on its floor. Interpreted by Howard (2003) and others as remnant terminal moraines, these ridges are located at the distal margins of the gullies' debris aprons, suggesting a possible association in their formation. Our results suggest that these arcuate ridges might result from the downslope movement of ice-rich deposits that pushed pre-existing ice-rich crater floor deposits into a moraine-like ridge. The pre-existing floor deposits can be interpreted to be a form of sublimated Concentric Crater Fill (CCF), which would have been among the first ice deposits to erode the Moni Crater walls. If we assume the arcuate ridges to be glacial moraines, then we can also assume the same processes that elevated the ridges also provided melt water to form the gullies. There is evidence that water and ice deposit-related processes incised the gully headwalls, exposing bedrock, plucking boulders, and initiating fractures, through ice-wedging or surface abrasion. HiRISE images ( approximately 25 cm/pixel) show shallow gullies extending several tens of meters beyond the crater rim, exploiting possible fractures or lineation in the rock. Melt water from these ice deposits, or snow melt, is a potential gully formation mechanism that would be consistent with the shallow runoff-like drainage morphology extending above the gully alcoves and beyond the crater rim. An initial phase of rapid melt water flows would also explain the wider degraded remnant channels we see on the crater slopes. The more gradual melting of ice frozen around headwall rocks could explain a secondary phase of melt water flows that form the more-recent channels. JF - American Geophysical Union Fall Meeting AU - Glines, Natalie Hanson AU - Gulick, Virginia C AU - Freeman, Patrick Morlishi AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract EP53A EP - 0957 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812219105?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Melt+water-driven+gully+formation+in+Moni+Crater%2C+Mars&rft.au=Glines%2C+Natalie+Hanson%3BGulick%2C+Virginia+C%3BFreeman%2C+Patrick+Morlishi%3BAnonymous&rft.aulast=Glines&rft.aufirst=Natalie&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - Tsunami waves extensively resurfaced the shorelines of a receding, early Martian ocean AN - 1812219015; 2016-070501 AB - It has been proposed that approximately 3.5 billion years ago an enormous ocean fed by catastrophic groundwater discharges covered most of the Martian northern plains. However, a persistent problem with this hypothesis is the lack of definitive paleoshoreline features. Here, based on geomorphic and thermal surface character mapping and numerical analysis in the circum-Chryse region of the northern plains, we show evidence for two enormous tsunami events possibly triggered by bolide impacts resulting in craters approximately 30 km in diameter and occurring perhaps a few million years apart. The tsunami events produced widespread, extant littoral landforms, including run-up sedimentary lobes hundreds of kilometers long across gently sloping plains and backwash channels where wave retreat occurred on highland boundary surfaces. Variations among the features associated with each tsunami event suggest that the ocean was relatively more frozen during the second event. JF - American Geophysical Union Fall Meeting AU - Fairen, Alberto AU - Palmero Rodriguez, Alexis AU - Linares, Rogelio AU - Zarroca, Mario AU - Platz, Thomas AU - Komatsu, Goro AU - Kargel, Jeffrey S AU - Gulick, Virginia C AU - Yan, Jianguo AU - Higuchi, Kana AU - Baker, Victor R AU - Glines, Natalie Hanson AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract EP53A EP - 0975 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812219015?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Tsunami+waves+extensively+resurfaced+the+shorelines+of+a+receding%2C+early+Martian+ocean&rft.au=Fairen%2C+Alberto%3BPalmero+Rodriguez%2C+Alexis%3BLinares%2C+Rogelio%3BZarroca%2C+Mario%3BPlatz%2C+Thomas%3BKomatsu%2C+Goro%3BKargel%2C+Jeffrey+S%3BGulick%2C+Virginia+C%3BYan%2C+Jianguo%3BHiguchi%2C+Kana%3BBaker%2C+Victor+R%3BGlines%2C+Natalie+Hanson%3BAnonymous&rft.aulast=Fairen&rft.aufirst=Alberto&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - Discontinuous drainage systems of Ne hellas basin, Mars AN - 1812218775; 2016-070416 AB - We mapped several valley and channel systems located on the plains NE of Hellas Basin, NW of Dao, Harmakhis, and Reull Valles, using CTX, THEMIS, HiRISE and HRSC data. The dissected terrain is comprised of early Hesperian lava flows. Drainage systems consist of deep, narrow valleys that we interpret as bedrock reaches and small outflow-like, flat-floored channels, that are approximately 1-2 km wide and contain depositional bedforms. In these systems, approximately 130 m deep narrow reaches alternate with wide, shallow sediment-dominated reaches. This morphologic pattern is probably the result downcutting and erosion of bedrock by stream flow and subsequent deposition of the eroded material in the wider reaches downstream in response to local topographic and lithologic changes. The floors of the wider channel reaches contain several stream-lined smooth-surfaced islands, which we interpret as possible bar deposits. In some of these non-terminal depositional reaches, the channels are completely filled by deposits but further downstream the boundaries of the channel walls become apparent again. We interpret these locations as possible sites where stream flow spreads out and infiltrates into the subsurface and then subsequently outflows again to surface where channel walls become more defined. Some channels seem to be associated with the pitted latitude dependent mantle, whereas elevated islands remain smooth and free of pits. In the upper reaches of one channel system, an assemblage of intra-channel features is repeated: knobs, sinuous ridges and elongate, channel-jamming deposits similar to the morphology resulting from glaciers or rock glaciers. One channel system begins with several theater-shaped heads, suggesting a possible formation by sapping. Channel heads are cut into a high-thermal-inertia unit, possibly basaltic bedrock. We propose that this setting is suggestive of terrestrial discontinuous ephemeral stream channel systems. JF - American Geophysical Union Fall Meeting AU - Hargitai, Henrik I AU - Gulick, Virginia C AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract EP51A EP - 0900 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812218775?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Discontinuous+drainage+systems+of+Ne+hellas+basin%2C+Mars&rft.au=Hargitai%2C+Henrik+I%3BGulick%2C+Virginia+C%3BAnonymous&rft.aulast=Hargitai&rft.aufirst=Henrik&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - The formation of fluvial channels on Alba Mons, Mars AN - 1812217329; 2016-070475 AB - Alba Mons is one of the oldest and largest volcanoes in the Tharsis region on Mars. Previous research shows that channel features exist on the central edifice and flanks of Alba Mons along steeply sloped portions of the volcano. These fluvial channels are embayed by younger lava flows and disrupted by graben, indicating they formed while the volcano was still active. The purpose of this study is to determine what meltwater channel morphology and distribution on Alba Mons indicate about volcano-ice interactions when the volcano was active. This study involves mapping surface features around Alba Mons, followed by a detailed investigation of individual well-defined channels using high resolution images to quantitatively relate channel morphology to formation processes and environmental conditions during volcanic activity. High-resolution analysis is currently ongoing, and results from the study will be presented. Channel networks and drainage basins on the northern side of the volcano are numerous and well-defined, allowing for high-resolution 2D and 3D analysis. JF - American Geophysical Union Fall Meeting AU - Lehnigk, Karin Eva AU - Garry, William Brent AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract EP53A EP - 0949 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812217329?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+formation+of+fluvial+channels+on+Alba+Mons%2C+Mars&rft.au=Lehnigk%2C+Karin+Eva%3BGarry%2C+William+Brent%3BAnonymous&rft.aulast=Lehnigk&rft.aufirst=Karin&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - Upper mantle discontinuity structure beneath the western Atlantic Ocean and eastern North America from SS precursors AN - 1812216073; 2016-068763 AB - Seismic discontinuities within the mantle arise from a wide range of mechanisms, including changes in mineralogy, major element composition, melt content, volatile abundance, anisotropy, or a combination of the above. In particular, the depth and sharpness of upper mantle discontinuities at 410 and 660 km depth are attributed to solid-state phase changes sensitive to both mantle temperature and composition, where regions of thermal heterogeneity produce topography and chemical heterogeneity changes the impedance contrast across the discontinuity. Seismic mapping of this topography and sharpness thus provides constraint on the thermal and compositional state of the mantle. The EarthScope USArray is providing unprecedented access to a wide variety of new regions previously undersampled by the SS precursors. This includes the boundary between the oceanic plate in the western Atlantic Ocean and continental margin of eastern North America. Here we use a seismic array approach to image the depth, sharpness, and topography of the upper mantle discontinuities, as well as other possible upper mantle reflectors beneath this region. This array approach utilizes seismic waves that reflect off the underside of a mantle discontinuity and arrive several hundred seconds prior to the SS seismic phase as precursory energy. In this study, we collected high-quality broadband data SS precursors data from shallow focus (<30 km deep), mid-Atlantic ridge earthquakes recorded by USArray seismometers in Alaska. We generated 4th root vespagrams to enhance the SS precursors and determine how they sample the mantle. Our data show detection of localized structure on the discontinuity boundaries as well as additional horizons, such as the X-discontinuity and a potential reflection from a discontinuity near the depth of the lithosphere-asthenosphere boundary. These structures are related to the transition from predominantly old ocean lithosphere to underlying continental lithosphere, as while deeper reflectors are associated with the subduction of the ancient Farallon slab. A comparison of the depth of upper mantle discontinuities to changes in seismic velocity and anisotropy will further quantify the relationship to mantle flow, compositional layering, and phases changes. JF - American Geophysical Union Fall Meeting AU - Schmerr, Nicholas C AU - Beghein, Caroline AU - Kostic, Dimitrije AU - Baldridge, Alice M AU - West, John D AU - Nittler, Larry R AU - Bull, Abigail Louise AU - Montesi, Laurent AU - Byrne, Paul K AU - Hummer, Daniel R AU - Plescia, Jeffrey B AU - Elkins-Tanton, Linda T AU - Lekic, Vedran AU - Schmidt, Britney E AU - Elkins, Lynne J AU - Cooper, Catherine M AU - ten Kate, Inge Loes AU - van Hinsbergen, Douwe J J AU - Parai, Rita AU - Glass, Jennifer B AU - Ni, James AU - Fuji, Nobuaki AU - McCubbin, Francis M AU - Michalski, Joseph R AU - Zhao, Chunpeng AU - Arevalo, Ricardo D, Jr AU - Koelemeijer, Paula AU - Courtier, Anna M AU - Dalton, Heather AU - Waszek, Lauren AU - Bahamonde, Joan AU - Schmerr, Ben AU - Gilpin, Nibbler AU - Rosenshein, Ellen AU - Mach, Kimberly AU - Ostrach, Lillian Rose AU - Caracas, Razvan AU - Craddock, Robert Anthony AU - Moore-Driskell, Melissa M AU - Du Frane, Wyatt L AU - Kellogg, Louise H AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract DI11C EP - 2615 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 18:Solid-earth geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812216073?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Upper+mantle+discontinuity+structure+beneath+the+western+Atlantic+Ocean+and+eastern+North+America+from+SS+precursors&rft.au=Schmerr%2C+Nicholas+C%3BBeghein%2C+Caroline%3BKostic%2C+Dimitrije%3BBaldridge%2C+Alice+M%3BWest%2C+John+D%3BNittler%2C+Larry+R%3BBull%2C+Abigail+Louise%3BMontesi%2C+Laurent%3BByrne%2C+Paul+K%3BHummer%2C+Daniel+R%3BPlescia%2C+Jeffrey+B%3BElkins-Tanton%2C+Linda+T%3BLekic%2C+Vedran%3BSchmidt%2C+Britney+E%3BElkins%2C+Lynne+J%3BCooper%2C+Catherine+M%3Bten+Kate%2C+Inge+Loes%3Bvan+Hinsbergen%2C+Douwe+J+J%3BParai%2C+Rita%3BGlass%2C+Jennifer+B%3BNi%2C+James%3BFuji%2C+Nobuaki%3BMcCubbin%2C+Francis+M%3BMichalski%2C+Joseph+R%3BZhao%2C+Chunpeng%3BArevalo%2C+Ricardo+D%2C+Jr%3BKoelemeijer%2C+Paula%3BCourtier%2C+Anna+M%3BDalton%2C+Heather%3BWaszek%2C+Lauren%3BBahamonde%2C+Joan%3BSchmerr%2C+Ben%3BGilpin%2C+Nibbler%3BRosenshein%2C+Ellen%3BMach%2C+Kimberly%3BOstrach%2C+Lillian+Rose%3BCaracas%2C+Razvan%3BCraddock%2C+Robert+Anthony%3BMoore-Driskell%2C+Melissa+M%3BDu+Frane%2C+Wyatt+L%3BKellogg%2C+Louise+H%3BAnonymous&rft.aulast=Schmerr&rft.aufirst=Nicholas&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - Investigating the Greenland firn aquifer near Helheim Glacier based on geophysical noninvasive methods and in situ measurements AN - 1812213678; 2016-068636 AB - Prior to the onset of seasonal surface melt, widespread perennial aquifers are detected at an average depth of 22 m below the snow surface in the firn of the Greenland ice sheet from airborne radar data. With an elevation range of approximately 1200-2000 m, the aquifers are mainly located within the percolation zone of the southern and southeastern parts of the ice sheet, in high snow accumulation regions. The impact of the aquifer on Greenland ice sheet hydrology and the direct (or indirect) contribution to sea-level rise remain unconstrained and require further attention. Our study is located on the upper portion of Helheim Glacier in SE Greenland, approximately 50 km west of the glacier calving front. We first used repeated airborne radar data collected by CReSIS to infer the presence of the firn over the last two decades from missing bed echoes. For 1993-2008, the aquifer remained relatively stable, after 2008 it expanded to higher elevations, and after spring 2012, drainage of its lower-elevation portion is suspected. Based on these initial insights, recent fieldwork was carried out along the surveyed radar line, following an elevation gradient. Geophysical investigation includes seismic refraction and magnetic resonance soundings to complement the radar data and to provide constraints on the base of the aquifer, water volume, and the transition from water-saturated firn to ice. In addition, piezometers and data-logging stations were deployed at point locations to measure hydraulic conductivity, water table vertical fluctuations, and firn temperature. We report on the different techniques used, initial observations made, and present some preliminary interpretations. Water appears to flow laterally in a highly-permeable unconfined aquifer, topographically driven by ice-sheet surface undulations until water encounters local sinks like crevasses. The aquifer impacts on the ice sheet are numerous, including firn densification, alteration of the ice thermal state, and water from the aquifer could enter the englacial network system, which would affect ice dynamics and Greenland's contribution to sea-level rise. JF - American Geophysical Union Fall Meeting AU - Miege, Clement AU - Koenig, Lora AU - Forster, Richard R AU - Miller, Olivia Leigh AU - Solomon, Douglas Kip AU - Legchenko, Anatoly AU - Schmerr, Nicholas C AU - Montgomery, Lynn Nicole AU - Brucker, Ludovic AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract C43E EP - 01 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812213678?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Greenland+firn+aquifer+near+Helheim+Glacier+based+on+geophysical+noninvasive+methods+and+in+situ+measurements&rft.au=Miege%2C+Clement%3BKoenig%2C+Lora%3BForster%2C+Richard+R%3BMiller%2C+Olivia+Leigh%3BSolomon%2C+Douglas+Kip%3BLegchenko%2C+Anatoly%3BSchmerr%2C+Nicholas+C%3BMontgomery%2C+Lynn+Nicole%3BBrucker%2C+Ludovic%3BAnonymous&rft.aulast=Miege&rft.aufirst=Clement&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - What can we learn about glaciers and ice sheets from 30 years of Landsat imagery? AN - 1812213544; 2016-068703 AB - Glacier and ice sheets are known to be rapidly changing and currently account for two thirds of observed sea level rise. Attributing the causes of the rapid decline in land ice requires separation of mass change processes, i.e. accumulation of precipitation, meltwater runoff, and solid ice discharge. Here we examine a 30 year record of Landsat imagery to determine trends in glacier velocity at a global scale in an attempt to identify anomalies in glacier flow that are contributing to changes in land ice mass. The Landsat archive represents a treasure trove of information with hundreds of thousands of images acquired over glaciers and ice sheets during the past 30 years. Gleaning useful and consistent surface displacement information from a multiple sensor archive that is heavily contaminated by cloud, saturated images, poorly resolved sensor geometry, and data gaps has proved challenging. Temporal stacking of displacement fields (Dehecq et al., 2015) and correcting for unresolved topography (Roseanau et al., 2012) have been shown to greatly improve derived velocities. Here we present results from a global processing of the complete Landsat archive for information on glacier surface displacements. We highlight patterns of coherent regional change as well as well as rapid basin-scale changes in glacier flow. JF - American Geophysical Union Fall Meeting AU - Gardner, Alex S AU - Scambos, Ted AU - Fahnestock, Mark A AU - Moholdt, Geir AU - Nilsson, Johan AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract C53C EP - 0794 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812213544?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=What+can+we+learn+about+glaciers+and+ice+sheets+from+30+years+of+Landsat+imagery%3F&rft.au=Gardner%2C+Alex+S%3BScambos%2C+Ted%3BFahnestock%2C+Mark+A%3BMoholdt%2C+Geir%3BNilsson%2C+Johan%3BAnonymous&rft.aulast=Gardner&rft.aufirst=Alex&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - Several firn core records suggest relatively stable accumulation rates during the past two centuries over the Amundsen Sea sector of West Antarctica AN - 1812212869; 2016-068697 AB - Pine Island and Thwaites glaciers are two of the largest Antarctic contributors to sea-level rise and several studies suggest their contribution will continue over the coming centuries. At the same time, West Antarctica is currently one of the most rapidly warming regions on Earth. Under future, warmer conditions, it is believed that total snowfall and accumulation will increase over these already high accumulation areas, which could act to mitigate some of the dynamic ice losses. Using a variety of cores collected between 2000 and 2010, we investigate the variations and trends in snow accumulation over the past two centuries from the area in and around the Pine Island and Thwaites catchments. Furthermore, we combine the firn core records with atmospheric reanalysis data to assess any controls on recent accumulation (post-1979) to understand potential future changes. We additionally use radar-derived accumulation rates from the past century to support interpretation of the firn core records and to help us understand the spatial representativeness of the records. Because the records from all three data sources (firn cores, reanalysis, and radar data) are in agreement, we find that the recent accumulation history of Pine Island and Thwaites is well-constrained at the catchment scale. JF - American Geophysical Union Fall Meeting AU - Medley, Brooke C AU - Das, Sarah B AU - Trusel, Luke D AU - Steig, Eric J AU - Lenaerts, Jan AU - Conway, Howard AU - McConnell, Joe AU - van den Broeke, Michiel AU - Criscitiello, Alison S AU - Bromwich, David H AU - Nicolas, Julien P AU - Joughin, Ian AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract C53A EP - 0760 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812212869?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Several+firn+core+records+suggest+relatively+stable+accumulation+rates+during+the+past+two+centuries+over+the+Amundsen+Sea+sector+of+West+Antarctica&rft.au=Medley%2C+Brooke+C%3BDas%2C+Sarah+B%3BTrusel%2C+Luke+D%3BSteig%2C+Eric+J%3BLenaerts%2C+Jan%3BConway%2C+Howard%3BMcConnell%2C+Joe%3Bvan+den+Broeke%2C+Michiel%3BCriscitiello%2C+Alison+S%3BBromwich%2C+David+H%3BNicolas%2C+Julien+P%3BJoughin%2C+Ian%3BAnonymous&rft.aulast=Medley&rft.aufirst=Brooke&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - Bed topography under Antarctic outlet glaciers revealed by mass conservation and radar data AN - 1812212838; 2016-068693 AB - Bed topography, together with ice thickness, is an essential characteristic of glaciers and ice sheets for many glaciological applications. Despite significant technical advances, it remains challenging to measure ice thickness remotely, especially in deep troughs occupied by outlet glaciers. The method of mass conservation, that combines radar-derived ice thickness data with high-resolution InSAR-derived ice velocity vectors, provides an effective method for generating a high-resolution bed from sparse radar sounding profiles, and has been successfully applied along the coast of the Greenland Ice Sheet. Applying the same technique to the coast of the Antarctic Ice Sheet presents a number of challenges. The coverage of ice thickness data collected in Antarctica, for example, is much less comprehensive compared to Greenland, especially in the wake of NASA's Operation IceBridge (OIB) Mission in 2010-2015. Here, we combine radar sounder data collected by various centers (OIB/Center for Remote Sensing of Ice Sheets, the British Antarctic Survey and University of Texas) acquired between 1998 and 2011, with high-resolution ice motion data from interferometric SAR (ALOS PALSAR, RADARSAT-2 and Envisat ASAR) to reconstruct bed topography beneath major Antarctic outlet glaciers at an unprecedented level of detail. The results reveal some important features not known previously at that level of detail and shed light on the vulnerability of these glaciers in a warming climate. We find for example that Recovery glacier is deeper than in previous mappings and has long grooves parallel to the flow direction. Denman Glacier, East Antarctica, flow along a deep, narrow trough more than 2,000 m below sea level that extends more than 100 km inland. We find ridges and bumps in the vicinity of the grounding line of Thwaites Glacier, in the Amundsen Sea sector, that are consistent with the pattern of grounding line retreat. We have also a new mapping of the trough upstream of David Glacier and the Gogineni trough upstream Byrd Glacier. These features, mapped for the first time, have vast implications for the modeling of the Antarctic ice sheet in a warming climate. This work was performed at the UC Irvine under a contract with NASA's Cryospheric Sciences Program, grant NNX15AD55G. JF - American Geophysical Union Fall Meeting AU - Morlighem, Mathieu AU - Rignot, Eric J AU - Mouginot, Jeremie AU - Seroussi, Helene L AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract C51E EP - 02 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1812212838?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Bed+topography+under+Antarctic+outlet+glaciers+revealed+by+mass+conservation+and+radar+data&rft.au=Morlighem%2C+Mathieu%3BRignot%2C+Eric+J%3BMouginot%2C+Jeremie%3BSeroussi%2C+Helene+L%3BAnonymous&rft.aulast=Morlighem&rft.aufirst=Mathieu&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - Getting under Mars' skin; the InSight mission to the deep interior of Mars AN - 1807507900; 2016-064562 AB - The InSight mission to Mars will launch in March of 2016, landing six months later in Elysium Planitia. In contrast to the 43 previous missions to Mars, which have thoroughly explored its surface features and chemistry, atmosphere, and searched for past or present life, InSight will focus on the deep interior of the planet. InSight will investigate the fundamental processes of terrestrial planet formation and evolution by performing the first comprehensive surface-based geophysical measurements on Mars. It will provide key information on the composition and structure of an Earth-like planet that has gone through most of the evolutionary stages of the Earth up to plate tectonics. The planet Mars can play a key role in understanding early terrestrial planet formation and evolution. Unlike the Earth, its overall structure appears to be relatively unchanged since the first few hundred million years after formation; unlike the Moon, it is large enough that the P-T conditions within the planet span an appreciable fraction of the terrestrial planet range. Thus the large-scale chemical and structural evidence preserved in Mars' interior should tell us a great deal about the processes of planetary differentiation and heat transport. InSight will undertake this investigation using the "traditional" geophysical techniques of seismology, precision tracking (for rotational dynamics), and heat flow measurement. The predominant challenge, in addition to the technical problems of the remote installation and operation of instruments on a distant and harsh planetary surface, comes from the practical limitation of working with data acquired from a single station. We will discuss how we overcome these limitations through the application of single-station seismic analysis techniques, which take advantage of some of the specific attributes of Mars, and global heat flow modeling, which allows the interpretation of a single measurement of a spatially inhomogeneous surface distribution. JF - American Geophysical Union Fall Meeting AU - Banerdt, William Bruce AU - Asmar, Sami W AU - Banfield, Donald J AU - Christensen, Ulrich R AU - Clinton, John F AU - Dehant, Veronique M A AU - Folkner, William M AU - Garcia, Raphael AU - Giardini, Domenico AU - Golombek, Matthew P AU - Grott, Matthias AU - Hudson, Troy AU - Johnson, Catherine L AU - Kargl, Guenter AU - Knapmeyer-Endrun, Brigitte AU - Kobayashi, Naoki AU - Lognonne, Philippe Henri AU - Maki, Justin AU - Mimoun, David AU - Mocquet, Antoine AU - Morgan, Paul AU - Panning, Mark P AU - Pike, William T AU - Spohn, Tilman AU - Tromp, Jeroen AU - Weber, Renee C AU - Wieczorek, Mark A AU - Russell, Christopher T AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract DI52B EP - 06 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807507900?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Getting+under+Mars%27+skin%3B+the+InSight+mission+to+the+deep+interior+of+Mars&rft.au=Banerdt%2C+William+Bruce%3BAsmar%2C+Sami+W%3BBanfield%2C+Donald+J%3BChristensen%2C+Ulrich+R%3BClinton%2C+John+F%3BDehant%2C+Veronique+M+A%3BFolkner%2C+William+M%3BGarcia%2C+Raphael%3BGiardini%2C+Domenico%3BGolombek%2C+Matthew+P%3BGrott%2C+Matthias%3BHudson%2C+Troy%3BJohnson%2C+Catherine+L%3BKargl%2C+Guenter%3BKnapmeyer-Endrun%2C+Brigitte%3BKobayashi%2C+Naoki%3BLognonne%2C+Philippe+Henri%3BMaki%2C+Justin%3BMimoun%2C+David%3BMocquet%2C+Antoine%3BMorgan%2C+Paul%3BPanning%2C+Mark+P%3BPike%2C+William+T%3BSpohn%2C+Tilman%3BTromp%2C+Jeroen%3BWeber%2C+Renee+C%3BWieczorek%2C+Mark+A%3BRussell%2C+Christopher+T%3BAnonymous&rft.aulast=Banerdt&rft.aufirst=William&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-07-29 N1 - CODEN - #07548 ER - TY - JOUR T1 - Modeling natural wetlands; a new global framework built on wetland observations AN - 1807504745; 2016-064429 AB - Natural wetlands are the world's largest methane (CH4) source, and their distribution and CH4 fluxes are sensitive to interannual and longer-term climate variations. Wetland distributions used in wetland-CH4 models diverge widely, and these geographic differences contribute substantially to large variations in magnitude, seasonality and distribution of modeled methane fluxes. Modeling wetland type and distribution - closely tied to simulating CH4 emissions - is a high priority, particularly for studies of wetlands and CH4 dynamics under past and future climates. Methane-wetland models either prescribe or simulate methane-producing areas (aka wetlands) and both approaches result in predictable over- and under-estimates. 1) Monthly satellite-derived inundation data include flooded areas that are not wetlands (e.g., lakes, reservoirs, and rivers), and do not identify non-flooded wetlands. 2) Models simulating methane-producing areas overwhelmingly rely on modeled soil moisture, systematically over-estimating total global area, with regional over- and under-estimates, while schemes to model soil-moisture typically cannot account for positive water tables (i.e., flooding). Interestingly, while these distinct hydrological approaches to identify wetlands are complementary, merging them does not provide critical data needed to model wetlands for methane studies. We present a new integrated framework for modeling wetlands, and ultimately their methane emissions, that exploits the extensive body of data and information on wetlands. The foundation of the approach is an existing global gridded data set comprising all and only wetlands, including vegetation information. This data set is augmented with data inter alia on climate, inundation dynamics, soil type and soil carbon, permafrost, active-layer depth, growth form, and species composition. We investigate this enhanced wetland data set to identify which variables best explain occurrence and characteristics of observed wetland ecosystems. The novelty of the new approach is that it starts from what we know about wetlands, builds ecosystem-specific models from these observations, and avoids known biases in current hydrology-based approaches to wetland definition in methane models. JF - American Geophysical Union Fall Meeting AU - Matthews, Elaine AU - Romanski, Joy N AU - Olefeldt, D AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract B41C EP - 0430 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1807504745?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+natural+wetlands%3B+a+new+global+framework+built+on+wetland+observations&rft.au=Matthews%2C+Elaine%3BRomanski%2C+Joy+N%3BOlefeldt%2C+D%3BAnonymous&rft.aulast=Matthews&rft.aufirst=Elaine&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-07-29 N1 - CODEN - #07548 ER - TY - JOUR T1 - The Virtual Quake earthquake simulator; a simulation-based forecast of the El Mayor-Cucapah region and evidence of predictability in simulated earthquake sequences AN - 1803780401; 2016-060473 AB - In this manuscript, we introduce a framework for developing earthquake forecasts using Virtual Quake (VQ), the generalized successor to the perhaps better known Virtual California (VC) earthquake simulator. We discuss the basic merits and mechanics of the simulator, and we present several statistics of interest for earthquake forecasting. We also show that, though the system as a whole (in aggregate) behaves quite randomly, (simulated) earthquake sequences limited to specific fault sections exhibit measurable predictability in the form of increasing seismicity precursory to large m > 7 earthquakes. In order to quantify this, we develop an alert-based forecasting metric, and show that it exhibits significant information gain compared to random forecasts. We also discuss the long-standing question of activation versus quiescent type earthquake triggering. We show that VQ exhibits both behaviours separately for independent fault sections; some fault sections exhibit activation type triggering, while others are better characterized by quiescent type triggering. We discuss these aspects of VQ specifically with respect to faults in the Salton Basin and near the El Mayor-Cucapah region in southern California, USA and northern Baja California Norte, Mexico. JF - Geophysical Journal International AU - Yoder, Mark R AU - Schultz, Kasey W AU - Heien, Eric M AU - Rundle, John B AU - Turcotte, Donald L AU - Parker, Jay W AU - Donnellan, Andrea Y1 - 2015/12// PY - 2015 DA - December 2015 SP - 1587 EP - 1604 PB - Oxford University Press on behalf of The Royal Astronomical Society, the Deutsche Geophysikalische Gesellschaft and the European Geophysical Society VL - 203 IS - 3 SN - 0956-540X, 0956-540X KW - United States KW - precursors KW - technology KW - geologic hazards KW - Salton Basin KW - Virtual Quake KW - simulation KW - California KW - dip KW - seismicity KW - seismic risk KW - El Mayor-Cucapah earthquake 2010 KW - probability KW - faults KW - stress KW - statistical analysis KW - magnitude KW - Mexico KW - Southern California KW - earthquake prediction KW - natural hazards KW - risk assessment KW - Baja California Mexico KW - earthquakes KW - instruments KW - 19:Seismology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803780401?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Journal+International&rft.atitle=The+Virtual+Quake+earthquake+simulator%3B+a+simulation-based+forecast+of+the+El+Mayor-Cucapah+region+and+evidence+of+predictability+in+simulated+earthquake+sequences&rft.au=Yoder%2C+Mark+R%3BSchultz%2C+Kasey+W%3BHeien%2C+Eric+M%3BRundle%2C+John+B%3BTurcotte%2C+Donald+L%3BParker%2C+Jay+W%3BDonnellan%2C+Andrea&rft.aulast=Yoder&rft.aufirst=Mark&rft.date=2015-12-01&rft.volume=203&rft.issue=3&rft.spage=1587&rft.isbn=&rft.btitle=&rft.title=Geophysical+Journal+International&rft.issn=0956540X&rft_id=info:doi/ L2 - http://gji.oxfordjournals.org/content/203/3/1587.abstract http://www.blackwellpublishing.com/journal.asp?ref=0956-540X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 96 N1 - Document feature - illus. incl. 2 tables, geol. sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-07-14 N1 - SubjectsTermNotLitGenreText - Baja California Mexico; California; dip; earthquake prediction; earthquakes; El Mayor-Cucapah earthquake 2010; faults; geologic hazards; instruments; magnitude; Mexico; natural hazards; precursors; probability; risk assessment; Salton Basin; seismic risk; seismicity; simulation; Southern California; statistical analysis; stress; technology; United States; Virtual Quake ER - TY - JOUR T1 - Human factors considerations: Midstream process safety integration AN - 1800504106; PQ0002831914 AB - Midstream oil and gas companies are coming into their own. For example, according to Deloitte (2014), "Midstream energy companies' share of overall market value in the oil and gas industry has already risen, nearly tripling over the last six years." Midstream operators are becoming the stars of the energy industry, investing $26 billion on new pipelines and facilities in 2012-a drastic increase from the seven billion spent just 6 years earlier [Larsson, Midstream investment in pipeline management solutions, Oil and Gas Monitor, Schneider Electric, 2014]. Particularly in the United States due to the success of shale and the increasing possibilities for exportation along with recent accidents and fatalities, more scrutiny is being given to both process safety and the humans in the myriad of midstream systems. In the petroleum industry, midstream activities are often taken for granted. Midstream, the conduit between upstream (retrieval of crude oil) and downstream (the processing of petroleum products), is deceivingly complex and risk-laden. The process safety issues are many and often the integration of those issues with the elements of crude oil storage and transportation is elusive. "Even the best designed, engineered, maintained, and operated pipelines and modes of transportation can be vulnerable to human failures and organizational complexity" [Smith and Volf, Oil Gas Financ J (2013)]. Human Factors (HFs) is a scientific tool that integrates humans (and their capabilities and limitations) into highly complex processes and systems. This discussion describes how the integration of HFs with process safety in crude oil storage, pipeline management, and transportation preserves human safety, organizational credibility, public goodwill, and infrastructure confidence along with investment maximization and preservation. Each aspect and phase of midstream activities share commonalities with the others and yet each has its own unique aspects and challenges. This article describes HFs integration with process safety in the midstream environment. Issues and considerations common to most facets of midstream enterprises are addressed. In addition, unique components of each of the midstream factors such as pipelines, transportation-rail, ship, and truck-and logistics and technology are discussed from a HFs perspective. copyright 2015 American Institute of Chemical Engineers Process Saf Prog 34: 320-327, 2015 JF - Process Safety Progress AU - Brooks, Denise M AD - Risktec Solutions, Inc, 1110 NASA Parkway Suite 203, Houston, TX, 77058. Y1 - 2015/12// PY - 2015 DA - December 2015 SP - 320 EP - 327 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 34 IS - 4 SN - 1066-8527, 1066-8527 KW - Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE) KW - Petroleum refining KW - Transportation KW - Gas pipelines KW - Crude oil KW - Human KW - Safety KW - Petroleum pipelines KW - Natural gas UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800504106?accountid=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=Process+Safety+Progress&rft.atitle=Human+factors+considerations%3A+Midstream+process+safety+integration&rft.au=Brooks%2C+Denise+M&rft.aulast=Brooks&rft.aufirst=Denise&rft.date=2015-12-01&rft.volume=34&rft.issue=4&rft.spage=320&rft.isbn=&rft.btitle=&rft.title=Process+Safety+Progress&rft.issn=10668527&rft_id=info:doi/10.1002%2Fprs.11779 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-07-01 N1 - Last updated - 2016-06-30 DO - http://dx.doi.org/10.1002/prs.11779 ER - TY - JOUR T1 - Can isotopic variations in structural water of gypsum reveal paleoclimatic changes? AN - 1800396983; 2016-058152 AB - Water of crystallization in gypsum can be used as paleo-environmental proxy to study large scale climatic variability in arid areas. This is because changes in the isotopic composition of water of crystallization are due to isotopic variations in the mother brine from which the mineral precipitated, and the brine isotopic composition is linked to evaporation processes and humidity. This is particularly important when the salts are the only traces left of the original water, i.e. in modern arid areas. This study aims to prove that the 2-D/18-O compositions of the water of crystallization extracted from successive precipitates or even different growth zones of natural gypsum (CaSO4.H2O) can reconstruct the evaporation history and paleo-humidity of the source water basin. The method was tested in a laboratory experiment that evaporated CaSO4 brines under controlled temperature and humidity conditions. The brine was left to evaporate for five days at two different humidities (45 and 75 RH%); subsequently, brines and precipitated gypsum were sampled at 24 hour intervals. In this way we simulated zoned growth of gypsum. The samples were then analyzed for oxygen and hydrogen isotopic composition using a Thermo Scientific TC/EA with modified column, coupled to a MAT 253 Thermo Finnigan mass spectrometer at JPL. If preliminary results validate the novel hypothesis that changes in mineral composition can reveal details of paleo-environmental conditions the theory will be tested on natural gypsum collected from selected areas in White Sands National Monument, New Mexico. The study is currently ongoing but the full dataset will be presented at the conference. JF - American Geophysical Union Fall Meeting AU - Westgate, J AU - Gatti, E AU - Bustos, D AU - Coleman, M L AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract PP11B EP - 2240 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800396983?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Can+isotopic+variations+in+structural+water+of+gypsum+reveal+paleoclimatic+changes%3F&rft.au=Westgate%2C+J%3BGatti%2C+E%3BBustos%2C+D%3BColeman%2C+M+L%3BAnonymous&rft.aulast=Westgate&rft.aufirst=J&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-06-30 N1 - CODEN - #07548 ER - TY - JOUR T1 - The potential for an independent source of Younger Dryas tree-ring radiocarbon data from the Lake Ontario region, NE North America, and its paleoenvironmental context; a preliminary report AN - 1800396919; 2016-058117 AB - Tree rings are the gold standard for the calibration of radiocarbon dates into calendar years with limited error due to their annual record of radiocarbon content in the atmosphere. Currently, the tree-ring 14C data used in the International Radiocarbon Calibration curve (IntCal13) are from multiple sources back to approximately 10 ka cal BP for the northern hemisphere. However, the source for tree-ring calibration data prior to approximately 10 ka cal BP, including the Younger Dryas (YD) and most of the early Holocene (EH) chronozones, is limited to Central Europe. Substantial quantities of logs found in the lowlands of Lake Ontario in North America, dating from 12.1 to 11.2 ka cal BP, have great potential for providing unique YD-EH tree-ring 14C data from a new, previously unrepresented, geographic location and for adding a new perspective to ongoing debates such as the timing of the YD/EH transition in continental North America. Preliminary fieldwork yielded over 43 logs, predominantly spruce (Picea spp.), found buried in alluvial strata over 0.2 hectares of the floodplain at Bell Creek near Fulton, NY. Dendrochronological analysis of 32 spruce logs from this collection has produced several chronologies, one 183 years in length and a second of 147 years with a possible crossdate yielding a chronology of 260 years. Ongoing survey of the site suggests that there is high preservation potential in the same stratigraphic units in an additional approximately 2 hectares of floodplain, and sample collection with subsequent analysis will increase the chronology's sample depth, extend its length, and potentially provide a robust, independent Younger Dryas-early Holocene 14C record. Initial assessments of climatic, hydrological, environmental, and isostatic variations and events over time from the tree rings and their stable isotopes, as well as pollen, macrofossil, and sediment analyses and isostatic modeling indicate substantial changes in the Bell Creek valley and surrounding lowlands both during the YD and into the mid-Holocene. These changes include significant alterations in the rate, volume, and direction of stream flow, and transition from a boreal riparian environment on a low-order river to a wetlands, then back to a riparian environment with much less streamflow and occasional flooding, similar to the Bell Creek valley today. JF - American Geophysical Union Fall Meeting AU - Griggs, C B AU - Southon, J R AU - Kromer, B AU - Hogg, A AU - Peteet, Dorothy M AU - Grote, T AU - Cathles, L M AU - Lorentzen, B E AU - Kocik, C AU - Kachuck, S AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract PP11A EP - 2205 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800396919?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+potential+for+an+independent+source+of+Younger+Dryas+tree-ring+radiocarbon+data+from+the+Lake+Ontario+region%2C+NE+North+America%2C+and+its+paleoenvironmental+context%3B+a+preliminary+report&rft.au=Griggs%2C+C+B%3BSouthon%2C+J+R%3BKromer%2C+B%3BHogg%2C+A%3BPeteet%2C+Dorothy+M%3BGrote%2C+T%3BCathles%2C+L+M%3BLorentzen%2C+B+E%3BKocik%2C+C%3BKachuck%2C+S%3BAnonymous&rft.aulast=Griggs&rft.aufirst=C&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-06-30 N1 - CODEN - #07548 ER - TY - JOUR T1 - The Little Ice Age and its spatial variability across the Balkans AN - 1800396817; 2016-058303 AB - Using biological proxies (pollen, spores, and charcoal), geochemical signals through X-ray fluorescence, and AMS (super 14) C based chronology, we present a correlation between two new high resolution Little Ice Age (LIA) records from the Central Balkans that are part of one of the least studied regions of Europe. The sediments extracted from a western sinkhole and central Serbian oxbow lake are analyzed at 8-10-cm intervals to capture the nature and magnitude of the LIA at a resolution of 20 years. During the 15th-19th CE, indigenous tree (e.g. Quercus, Acer, Pinus) and herbaceous (e.g. Poaceae, Chenopodiaceae, Artemisia) pollen from these records demonstrate fluctuations in woodland-grassland dynamics. While tree populations from Central Serbia remain comparatively stable (40-60%), the trees of western Serbia vacillate drastically between 15% and 50%. Similarly, central Serbian grasses show variations of approximately 18-36% whereas the western Serbian grass populations exhibit abrupt oscillations between high (55%) and low (19%) percentages. As a proxy for surface erosion and clastic input into the lakes, the 1-cm resolution potassium and titanium counts are in strong agreement with varying herbaceous taxa. These variations in ecological signals across the cores can account for local factors including altitude, terrain exposure, soils etc., however, the dynamic human component of the landscape is evident through crop pollen (e.g. Cerealia, Juglans) and microscopic charcoal highlighting the dominant role of people in ecological changes. Although the two sites show certain differences in charcoal concentration, extremely high charcoal indicates accelerated land clearance between the 15th and 17th CE. Until the beginning of 18th CE, the cultivars (e.g. Secale, Triticum) occur with very low percentages and then peak to suggest improved agriculture in the region. In the post-LIA era, the 20th CE exhibits increased arboreal percentages and declining grasslands in both the two Central Balkan records. JF - American Geophysical Union Fall Meeting AU - Kulkarni, Charuta AU - Peteet, Dorothy M AU - Boger, Rebecca A AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract PP31C EP - 2259 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800396817?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Little+Ice+Age+and+its+spatial+variability+across+the+Balkans&rft.au=Kulkarni%2C+Charuta%3BPeteet%2C+Dorothy+M%3BBoger%2C+Rebecca+A%3BAnonymous&rft.aulast=Kulkarni&rft.aufirst=Charuta&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-06-30 N1 - CODEN - #07548 ER - TY - JOUR T1 - Remote sensing of the isotopic composition of water vapor; application to hydrology and climate AN - 1800396790; 2016-058262 AB - Remotely sensed measurements of water vapor and its isotopologues are inferred by how these molecules spectrally affect light as it is transferred from some source (e.g., the Sun, the Earth, or a laser), through the atmosphere, to a detector. Consequently, the use of satellite or ground based remotely sensed measurements of the isotopic composition of water vapor to investigate the global water cycle depends on the viewing geometry, photon source, and instrument characteristics which in turn affects the vertical resolution of the measurement and choice of regularization used to infer these quantities from a spectral radiance. Users of these data must therefore take these aspects formally into account when comparing these remotely sensed data to models or independent measurements. In this presentation I will summarize how profiles of the HDO/H2O ratio are inferred from Aura Tropospheric Emission Spectrometer thermal IR radiances and then how to account for the vertical resolution and regularization used in this "retrieval" when comparing to other models and data. In particular I will show comparisons of these satellite data to aircraft and model profiles of HDO and H2O as well as discuss previous and ongoing research into the global water cycle, climate, and paleo-climate that use these data. JF - American Geophysical Union Fall Meeting AU - Worden, J AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract PP13E EP - 02 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800396790?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Remote+sensing+of+the+isotopic+composition+of+water+vapor%3B+application+to+hydrology+and+climate&rft.au=Worden%2C+J%3BAnonymous&rft.aulast=Worden&rft.aufirst=J&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-06-30 N1 - CODEN - #07548 ER - TY - JOUR T1 - Environmental consequences of big nasty impacts on the early Earth AN - 1800396738; 2016-058320 AB - The geological record of the Archean Earth is spattered with impact spherules from a dozen or so major cosmic collisions involving Earth and asteroids or comets (Lowe, Byerly 1986, 2015). Extrapolation of the documented deposits suggests that most of these impacts were as big or bigger than the Chicxulub event that famously ended the reign of the thunder lizards. As the Archean impacts were greater, the environmental effects were also greater. The number and magnitude of the impacts is bounded by the lunar record. There are no lunar craters bigger than Chicxulub that date to Earth's mid-to-late Archean. Chance dictates that Earth experienced approximately 10 impacts bigger than Chicxulub between 2.5 Ga and 3.5 Ga, the biggest of which were approximately 30-100X more energetic than Chicxulub. To quantify the thermal consequences of big impacts on old Earth, we model the global flow of energy from the impact into the environment. The model presumes that a significant fraction of the impact energy goes into ejecta that interact with the atmosphere. Much of this energy is initially in rock vapor, melt, and high speed particles. (i) The upper atmosphere is heated by ejecta as they reenter the atmosphere. The mix of hot air, rock vapor, and hot silicates cools by thermal radiation. Rock raindrops fall out as the upper atmosphere cools. (ii) The energy balance of the lower atmosphere is set by radiative exchange with the upper atmosphere and with the surface, and by evaporation of seawater. Susequent cooling is governed by condensation of water vapor. (iii) The oceans are heated by thermal radiation and rock rain and cooled by evaporation. Surface waters become hot and salty; if a deep ocean remains it is relatively cool. Subsequently water vapor condenses to replenish the oceans with hot fresh water (how fresh depending on continental weathering, which might be rather rapid under the circumstances). (iv) The surface temperature of dry land is presumed to be the same as the lower atmosphere. A thermal wave propagates into the land at a rate set by conduction. Impacts larger than Chicxulub can raise the surface temperature by tens, hundreds, or even thousands of degrees, and evaporate meters to hundreds of meters of water. The biggest should have vitrified exposed dry land. More results--including shock chemistry--are for the talk, as here we have run out of space. JF - American Geophysical Union Fall Meeting AU - Zahnle, Kevin J AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract PP31E EP - 01 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800396738?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Environmental+consequences+of+big+nasty+impacts+on+the+early+Earth&rft.au=Zahnle%2C+Kevin+J%3BAnonymous&rft.aulast=Zahnle&rft.aufirst=Kevin&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-06-30 N1 - CODEN - #07548 ER - TY - JOUR T1 - On the evolution of moisture sources through the deglaciation AN - 1800396288; 2016-058265 AB - During the deglaciation, the hydrologic cycle underwent significant shifts owing to the large changes topographic forcing, greenhouse gas concentration, and orbital forcing. Water isotopologues record these shifts, but the interpretation is complicated because multiple factors - including temperature changes, precipitation changes, humidity changes, and vapor source distribution changes--influence the final composition. Here we utilize the Goddard Institute for Space Studies general circulation model (GISS-E2) to simulate deglacial changes in water isotopes (Ullman et al., 2014). We then utilize boundary conditions from the coupled model to drive atmospheric-only simulations that incorporate a separate and complementary suite of tracers called vapor source distribution tracers to identify shifts in moisture sources at key locations for paleoclimate archives. We find large modulations in moisture convergences, vapor source distributions, as well as temperature and precipitation happening in parallel with the water isotopologue changes. We offer some preliminary insight into the drivers of isotopologue changes in the GISS-E2 model through the deglation. JF - American Geophysical Union Fall Meeting AU - LeGrande, A N AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract PP13E EP - 05 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800396288?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+evolution+of+moisture+sources+through+the+deglaciation&rft.au=LeGrande%2C+A+N%3BAnonymous&rft.aulast=LeGrande&rft.aufirst=A&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-06-30 N1 - CODEN - #07548 ER - TY - JOUR T1 - New insights into amino acid preservation in the early oceans using modern analytical techniques AN - 1800395540; 2016-058215 AB - Protein- and non-protein-amino acids likely occupied the oceans at the time of the origin and evolution of life. Primordial soup-, hydrothermal vent-, and meteoritic-processes likely contributed to this early chemical inventory. Prebiotic synthesis and carbonaceous meteorite studies suggest that non-protein amino acids were likely more abundant than their protein-counterparts. Amino acid preservation before abiotic and biotic destruction is key to biomarker availability in paleoenvironments and remains an important uncertainty. To constrain primitive amino acid lifetimes, a 1992 archived seawater/beach sand mixture was spiked with D,L-alanine, D,L-valine (Val), alpha -aminoisobutyric acid (alpha -AIB), D,L-isovaline (Iva), and glycine (Gly). Analysis by high performance liquid chromatography with fluorescence detection (HPLC-FD) showed that only D-Val and non-protein amino acids were abundant after 2250 days. The mixture was re-analyzed in 2012 using HPLC-FD and a triple quadrupole mass spectrometer (QqQ-MS). The analytical results 20 years after the inception of the experiment were strikingly similar to those after 2250 days. To confirm that viable microorganisms were still present, the mixture was re-spiked with Gly in 2012. Aliquots were collected immediately after spiking, and at 5- and 9-month intervals thereafter. Final HPLC-FD/QqQ-MS analyses were performed in 2014. The 2014 analyses revealed that only alpha -AIB, D,L-Iva, and D-Val remained abundant. The disappearance of Gly indicated that microorganisms still lived in the mixture and were capable of consuming protein amino acids. These findings demonstrate that non-protein amino acids are minimally impacted by biological degradation and thus have very long lifetimes under these conditions. Primitive non-protein amino acids from terrestrial synthesis, or meteorite in-fall, likely experienced greater preservation than protein amino acids in paleo-oceanic environments. Such robust molecules may have reached a steady state concentration dependent on ocean circulation through hydrothermal systems and synthetic input processes. We are presently trying to estimate this concentration. JF - American Geophysical Union Fall Meeting AU - Parker, E T AU - Brinton, K L AU - Burton, A S AU - Glavin, D P AU - Dworkin, J P AU - Bada, J AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract PP13A EP - 2271 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800395540?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+into+amino+acid+preservation+in+the+early+oceans+using+modern+analytical+techniques&rft.au=Parker%2C+E+T%3BBrinton%2C+K+L%3BBurton%2C+A+S%3BGlavin%2C+D+P%3BDworkin%2C+J+P%3BBada%2C+J%3BAnonymous&rft.aulast=Parker&rft.aufirst=E&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-06-30 N1 - CODEN - #07548 ER - TY - JOUR T1 - Heterogeneous Earth structure, deformation, and slip during the 2010 M (sub w) 7.2 El Mayor-Cucapah earthquake from geodetic data AN - 1797536547; 2016-053608 AB - The 4th of April 2010 Mw 7.2 El Mayor-Cucapah (EMC) earthquake in Baja California and Sonora, Mexico has primarily right-lateral strike-slip motion and a minor normal slip component. The surface rupture extends about 120 km west of the boundary between the Pacific and the North American plates. The EMC event initiated near the center and ruptured bilaterally into an east-dipping strike-slip fault zone to the north and a west-dipping strike-slip zone to the south. Here we use geodetic measurements including GPS, InSAR (SAR interferometry), and sub-pixel offset measurements to characterize the fault slip during the EMC event. We use dislocation inversion methods to determine fault geometry as well as sub-fault slip distribution based on geodetic measurements. We find that assuming layered earth elastic structure increased the inferred deep slip (10-15 km depth) by up to 1.6 m (60%) compared to assuming a homogeneous elastic structure. Inferred slip was also strongly (up to 2 m) influenced by the choice of observational constraints used in the inversion. The choice of constraints also influenced the inverted seismic moment from Mw 7.20 to 7.26, and the difference is equivalent to a Mw 6.5 event. Our results show that the outcomes of coseismic inversions can vary greatly depending on the methodology, something that needs to be considered both for characterizing an earthquake and when using such results in subsequent studies of postseismic deformation. JF - American Geophysical Union Fall Meeting AU - Huang, M H AU - Dickinson, H AU - Fielding, Eric J AU - Sun, Jianbao AU - Freed, A M AU - Burgmann, R AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract T41A EP - 2845 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1797536547?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Heterogeneous+Earth+structure%2C+deformation%2C+and+slip+during+the+2010+M+%28sub+w%29+7.2+El+Mayor-Cucapah+earthquake+from+geodetic+data&rft.au=Huang%2C+M+H%3BDickinson%2C+H%3BFielding%2C+Eric+J%3BSun%2C+Jianbao%3BFreed%2C+A+M%3BBurgmann%2C+R%3BAnonymous&rft.aulast=Huang&rft.aufirst=M&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-06-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Detecting patterns of changing carbon uptake in Alaska using sustained in situ and remote sensing CO2 observations AN - 1797536120; 2016-050786 AB - The future trajectory of Arctic ecosystems as a carbon sink or source is of global importance due to vast quantities of carbon in permafrost soils. Over the last few years, a sustained set of airborne (NOAA-PFA, NOAA-ACG, and CARVE) and satellite (OCO-2 and GOSAT) atmospheric CO2 mole fraction measurements have provided unprecedented space and time scale sampling density across Alaska, making it possible to study the Arctic carbon cycle in more detail than ever before. Here, we use a synthesis of airborne and satellite CO2 over the 2009-2013 period with simulated concentrations from CLM4.5 and GEOS-Chem to examine the extent to which regional-scale carbon cycle changes in Alaska can be distinguished from interannual variability and long-range transport. We show that observational strategies focused on sustained profile measurements spanning continental interiors provide key insights into magnitude, duration, and variability of Summer sink activity, but that cold season sources are currently poorly resolved due to lack of sustained spatial sampling. Consequently, although future CO2 budgets dominated by enhanced cold season emission sources under climate warming and permafrost thaw scenarios are likely to produce substantial changes to near-surface CO2 gradients and seasonal cycle amplitude, they are unlikely to be detected by current observational strategies. We conclude that airborne and ground-based networks that provide more spatial coverage in year round profiles will help compensate for systematic sampling gaps in NIR passive satellite systems and provide essential constraints for Arctic carbon cycle changes. JF - American Geophysical Union Fall Meeting AU - Parazoo, N AU - Miller, C E AU - Commane, R AU - Wofsy, S C AU - Koven, C AU - Lawrence, D M AU - Lindaas, J AU - Chang, R Y W AU - Sweeney, C AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract B31D EP - 0613 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1797536120?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Detecting+patterns+of+changing+carbon+uptake+in+Alaska+using+sustained+in+situ+and+remote+sensing+CO2+observations&rft.au=Parazoo%2C+N%3BMiller%2C+C+E%3BCommane%2C+R%3BWofsy%2C+S+C%3BKoven%2C+C%3BLawrence%2C+D+M%3BLindaas%2C+J%3BChang%2C+R+Y+W%3BSweeney%2C+C%3BAnonymous&rft.aulast=Parazoo&rft.aufirst=N&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-06-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Real-time measurements of CH (sub 4) and CO (sub 2) flux and del (super 13) C from a proglacial wetland in southwestern Greenland AN - 1797534944; 2016-050748 AB - Arctic permafrost environments represent a large repository of stored carbon that may be mobilized as global temperatures increase, providing a substrate for microbial CH4 production. Proglacial wetlands and lakes are important targets of study to better understand how rapidly changing landscapes affected by climate warming adapt their carbon cycling. Recent advances in portable laser spectrometry have enabled rapid in situ measurements of not only greenhouse gas fluxes, but also del13C compositions of these gases. Here we use a Picarro CH4 and CO2 isotope analyzer to continuously measure CH4 and CO2 flux in situ for comparison to static closed chamber measurements where samples are collected at discrete time intervals and returned to the laboratory for analysis. Real-time, in situ analysis also allowed simple light/dark experiments to be performed on chambers containing different vegetation. In addition, this instrument can be used to measure concentration and del13C of both dissolved CH4 and CO--2 in lake waters when appropriate gas stripped methods are used. We present data for CH4 and CO2 flux and del13C of emitted and dissolved gases from permafrost-affected wetlands and lakes associated with proglacial landscapes in southwestern Greenland near the Russell Glacier. JF - American Geophysical Union Fall Meeting AU - Stern, J C AU - White, J R AU - Pratt, L M AU - Thompson, H A AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract B31C EP - 0571 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1797534944?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Real-time+measurements+of+CH+%28sub+4%29+and+CO+%28sub+2%29+flux+and+del+%28super+13%29+C+from+a+proglacial+wetland+in+southwestern+Greenland&rft.au=Stern%2C+J+C%3BWhite%2C+J+R%3BPratt%2C+L+M%3BThompson%2C+H+A%3BAnonymous&rft.aulast=Stern&rft.aufirst=J&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-06-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Microstructural evidence for a disequilibrium condensation origin for hibonite-spinel inclusions in the ALHA 77307 CO3.0 chondrite AN - 1797532897; 2016-053158 AB - Two hibonite-spinel inclusions (CAIs 03 and 08) in the ALHA77307 CO3.0 chondrite have been characterized in detail using the focused ion beam sample preparation technique combined with transmission electron microscopy. These hibonite-spinel inclusions are irregularly shaped and porous objects and consist of randomly oriented hibonite laths enclosed by aggregates of spinel with fine-grained perovskite inclusions finally surrounded by a partial rim of diopside. Melilite is an extremely rare phase in this type of CAI and occurs only in one inclusion (CAI 03) as interstitial grains between hibonite laths and on the exterior of the inclusion. The overall petrologic and mineralogical observations suggest that the hibonite-spinel inclusions represent high-temperature condensates from a cooling nebular gas. The textural relationships indicate that hibonite is the first phase to condense, followed by perovskite, spinel, and diopside. Texturally, melilite condensation appears to have occurred after spinel, suggesting that the condensation conditions were far from equilibrium. The crystallographic orientation relationships between hibonite and spinel provide evidence of epitaxial nucleation and growth of spinel on hibonite surfaces, which may have lowered the activation energy for spinel nucleation compared with that of melilite and consequently inhibited melilite condensation. Hibonite contains abundant stacking defects along the (001) plane consisting of different ratios of the spinel and Ca-containing blocks within the ideal hexagonal hibonite structure. This modification of the stacking sequence is likely the result of accommodation of excess Al in the gas into hibonite due to incomplete condensation of corundum from a cooling gas under disequilibrium conditions. We therefore conclude that these two hibonite-spinel inclusions in ALHA77307 formed by high-temperature condensation under disequilibrium conditions. Abstract Copyright The Meteoritical Society, 2015. JF - Meteoritics & Planetary Science AU - Han, Jangmi AU - Brearley, Adrian J AU - Keller, Lindsay P Y1 - 2015/12// PY - 2015 DA - December 2015 SP - 2121 EP - 2136 PB - Meteoritical Society, Fayetteville, AR VL - 50 IS - 12 SN - 1086-9379, 1086-9379 KW - sorosilicates KW - silicates KW - stony meteorites KW - microstructure KW - crystal growth KW - temperature KW - CO chondrites KW - meteorites KW - melilite group KW - melilite KW - stacking KW - inclusions KW - orthosilicates KW - ALHA 77307 KW - oxides KW - chondrites KW - condensation KW - textures KW - spinel KW - hibonite KW - carbonaceous chondrites KW - epitaxy KW - intergrowths KW - equilibrium KW - defects KW - Allan Hills Meteorites KW - nucleation KW - high temperature KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1797532897?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Microstructural+evidence+for+a+disequilibrium+condensation+origin+for+hibonite-spinel+inclusions+in+the+ALHA+77307+CO3.0+chondrite&rft.au=Han%2C+Jangmi%3BBrearley%2C+Adrian+J%3BKeller%2C+Lindsay+P&rft.aulast=Han&rft.aufirst=Jangmi&rft.date=2015-12-01&rft.volume=50&rft.issue=12&rft.spage=2121&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fmaps.12563 L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2016-01-01 N1 - Number of references - 47 N1 - PubXState - AR N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2016-06-17 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - ALHA 77307; Allan Hills Meteorites; carbonaceous chondrites; chondrites; CO chondrites; condensation; crystal growth; defects; epitaxy; equilibrium; hibonite; high temperature; inclusions; intergrowths; melilite; melilite group; meteorites; microstructure; nucleation; orthosilicates; oxides; silicates; sorosilicates; spinel; stacking; stony meteorites; temperature; textures DO - http://dx.doi.org/10.1111/maps.12563 ER - TY - JOUR T1 - The dynamic state of the ocean and atmosphere during megadroughts in the American West AN - 1797532531; 2016-053385 AB - Multidecadal droughts are a prominent feature of the Common Era paleoclimate record in the American West, particularly during the Medieval Climate Anomaly. These megadroughts represent an important out-of-sample target for validating the ability of Coupled General Circulation Models to adequately characterize drought risk over the near-term future. Such model validations, however, require a substantially improved understanding of the atmosphere-ocean state during megadroughts. Here we use spatiotemporal tree-ring reconstructions of Northern Hemisphere hydroclimate to infer the atmosphere-ocean dynamics that underlie megadroughts, and find that these features are consistently associated with ten-to-thirty year periods of frequent cold conditions in the tropical Pacific Ocean. Nevertheless, a prominent hypothesis that there were multiple centuries of persistently La Nina-like conditions during the Medieval Climate Anomaly is inconsistent with our analysis of the tree-ring reconstructions. Instead, warm conditions in the Atlantic likely played a necessary role in amplifying drying during this period. These results provide a framework for evaluating the performance of General Circulation Models, which simulate megadroughts under a range of different atmosphere-ocean states, including stochastic atmospheric variability, and clarify the dynamical mechanisms that will determine the risk of megadroughts in the future. JF - American Geophysical Union Fall Meeting AU - Coats, S AU - Smerdon, J E AU - Cook, B AU - Seager, R AU - Cook, E R AU - Anchukaitis, K J AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract PP44B EP - 08 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1797532531?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+dynamic+state+of+the+ocean+and+atmosphere+during+megadroughts+in+the+American+West&rft.au=Coats%2C+S%3BSmerdon%2C+J+E%3BCook%2C+B%3BSeager%2C+R%3BCook%2C+E+R%3BAnchukaitis%2C+K+J%3BAnonymous&rft.aulast=Coats&rft.aufirst=S&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-06-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Understanding spatial and temporal shifts in blue carbon, Piermont Marsh, lower Hudson Estuary, NY AN - 1797529652; 2016-053206 AB - Piermont Marsh is a National Estuarine Research Reserve (NERR) protected brackish wetland in the lower Hudson Valley. It serves as a nursery for fish, a coastal buffer in storms, a repository of native wetland species unique to the Hudson, and a paleoenvironmental archive. At risk for disappearance due to rising sea level, we assess the present carbon stores and their spatial and temporal variability through time. Determining the depth of peat in transects throughout Piermont Marsh (41 degrees N, 73 degrees 55'W), is one step in reconstructing the stores of carbon in the marsh and how they have shifted over millennia. Through the last decade, we have focused field efforts on probing the depths of the marsh through a series of transects and in acquiring sediment cores from which we establish sedimentation rates and carbon storage through time. AMS C-14 dating, XRF fluorescence, pollen analysis, and Cesium-137 provide chronological control for the sedimentation rates, pollution history, and an understanding of the regional and local shifts in vegetation. C-13 and pollen measurements in selected cores indicate major shifts in local vegetation with coastal eutrophication as the marsh has been invaded, first by Typha angustifolia in the nineteenth century and then by Phragmites australis in the twentieth century up to the present. N-15 measurements indicate a large shift in nitrogen as humans have impacted the marsh. We present a comprehensive, three-dimensional view of the effects of climate, vegetation, and human impact on the carbon storage of Piermont Marsh. This project provided a site for a place- and project-based learning through Lamont-Doherty's Secondary School Field Research Program. Many of the field samples were collected by young investigators from schools in New York City and towns near Piermont. JF - American Geophysical Union Fall Meeting AU - Peteet, D M AU - Nichols, J E AU - Kenna, T C AU - Corbett, E J AU - Allen, K A AU - Newton, R AU - Vincent, Susan AU - Haroon, A AU - Shumer, M AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract B11H EP - 0546 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1797529652?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+spatial+and+temporal+shifts+in+blue+carbon%2C+Piermont+Marsh%2C+lower+Hudson+Estuary%2C+NY&rft.au=Peteet%2C+D+M%3BNichols%2C+J+E%3BKenna%2C+T+C%3BCorbett%2C+E+J%3BAllen%2C+K+A%3BNewton%2C+R%3BVincent%2C+Susan%3BHaroon%2C+A%3BShumer%2C+M%3BAnonymous&rft.aulast=Peteet&rft.aufirst=D&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-06-17 N1 - CODEN - #07548 ER - TY - JOUR T1 - Dust composition in climate models; current status and prospects AN - 1793203512; 2016-049152 AB - Mineral dust created by wind erosion of soil particles is the dominant aerosol by mass in the atmosphere. It exerts significant effects on radiative fluxes, clouds, ocean biogeochemistry, and human health. Models that predict the lifecycle of mineral dust aerosols generally assume a globally uniform mineral composition. However, this simplification limits our understanding of the role of dust in the Earth system, since the effects of dust strongly depend on the particles' physical and chemical properties, which vary with their mineral composition. Hence, not only a detailed understanding of the processes determining the dust emission flux is needed, but also information about its size dependent mineral composition. Determining the mineral composition of dust aerosols is complicated. The largest uncertainty derives from the current atlases of soil mineral composition. These atlases provide global estimates of soil mineral fractions, but they are based upon massive extrapolation of a limited number of soil samples assuming that mineral composition is related to soil type. This disregards the potentially large variability of soil properties within each defined soil type. In addition, the analysis of these soil samples is based on wet sieving, a technique that breaks the aggregates found in the undisturbed parent soil. During wind erosion, these aggregates are subject to partial fragmentation, which generates differences on the size distribution and composition between the undisturbed parent soil and the emitted dust aerosols. We review recent progress on the representation of the mineral and chemical composition of dust in climate models. We discuss extensions of brittle fragmentation theory to prescribe the emitted size-resolved dust composition, and we identify key processes and uncertainties based upon model simulations and an unprecedented compilation of observations. JF - American Geophysical Union Fall Meeting AU - Garcia-Pando, Carlos Perez AU - Miller, Ron L AU - Perlwitz, Jan P AU - Kok, J F AU - Scanza, R AU - Mahowald, N M AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract A21L EP - 08 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1793203512?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Dust+composition+in+climate+models%3B+current+status+and+prospects&rft.au=Garcia-Pando%2C+Carlos+Perez%3BMiller%2C+Ron+L%3BPerlwitz%2C+Jan+P%3BKok%2C+J+F%3BScanza%2C+R%3BMahowald%2C+N+M%3BAnonymous&rft.aulast=Garcia-Pando&rft.aufirst=Carlos&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-06-02 N1 - CODEN - #07548 ER - TY - JOUR T1 - Hydrogen stable isotopic constraints on methane emissions from oil and gas extraction in the Colorado Front Range, USA AN - 1793203458; 2016-049203 AB - The climatic implications of a shift from oil and coal to natural gas depend on the magnitude of fugitive emissions of methane from the natural gas supply chain. Attempts to constrain methane emissions from natural gas production regions can be confounded by other sources of methane. Here we demonstrate the utility of stable isotopes, particularly hydrogen isotopes, for source apportionment of methane emissions. The Denver, Colorado area is home to a large oil and gas field with both conventional oil and gas wells and newer hydraulic fracturing wells. The region also has a large metropolitan area with several landfills and a sizable cattle population. As part of the DISCOVER-AQ and FRAPPE field campaigns in summer 2014, we collected three types of canister samples for analysis of stable isotopic composition of methane: 1), samples from methane sources; 2), samples from two stationary ground sites, one in the Denver foothills, and one in an oil and gas field; and 3), from the NCAR C-130 aircraft in samples upwind and downwind of the region. Our results indicate that hydrogen isotope ratios are excellent tracers of sources of methane in the region, as we have shown previously in California and Texas. Use of carbon isotope ratios is complicated by the similarity of natural gas isotope ratios to that of background methane. Our results indicate that, despite the large amount of natural gas production in the region, biological sources such as cattle feedlots and landfills account for at least 50% of total methane emissions in the Front Range. Future work includes comparison of isotopes and alkane ratios as tracers of methane sources, and calculation of total methane fluxes in the region using continuous measurements of methane concentrations during aircraft flights. JF - American Geophysical Union Fall Meeting AU - Townsend-Small, Amy AU - Botner, E C AU - Jimenez, K AU - Blake, N J AU - Schroeder, Jason AU - Meinardi, S AU - Barletta, B AU - Simpson, I J AU - Blake, D R AU - Flocke, F M AU - Pfister, G AU - Bon, Daniel AU - Crawford, James H AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract A41Q EP - 05 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1793203458?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Hydrogen+stable+isotopic+constraints+on+methane+emissions+from+oil+and+gas+extraction+in+the+Colorado+Front+Range%2C+USA&rft.au=Townsend-Small%2C+Amy%3BBotner%2C+E+C%3BJimenez%2C+K%3BBlake%2C+N+J%3BSchroeder%2C+Jason%3BMeinardi%2C+S%3BBarletta%2C+B%3BSimpson%2C+I+J%3BBlake%2C+D+R%3BFlocke%2C+F+M%3BPfister%2C+G%3BBon%2C+Daniel%3BCrawford%2C+James+H%3BAnonymous&rft.aulast=Townsend-Small&rft.aufirst=Amy&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-06-02 N1 - CODEN - #07548 ER - TY - JOUR T1 - Cloud Regime Variability over the Azores and Its Application to Climate Model Evaluation AN - 1790971750; PQ0003081156 AB - From its location on the subtropics-midlatitude boundary, the Azores is influenced by both the subtropical high pressure and the midlatitude baroclinic storm regimes and therefore experiences a wide range of cloud structures, from fair-weather scenes to stratocumulus sheets and deep convective systems. This work combines three types of datasets to study cloud variability in the Azores: a satellite analysis of cloud regimes, a reanalysis characterization of storminess, and a 19-month field campaign that occurred on Graciosa Island. Combined analysis of the three datasets provides a detailed picture of cloud variability and the respective dynamic influences, with emphasis on low clouds that constitute a major uncertainty source in climate model simulations. The satellite cloud regime analysis shows that the Azores cloud distribution is similar to the mean global distribution and can therefore be used to evaluate cloud simulation in global models. Regime analysis of low clouds shows that stratocumulus decks occur under the influence of the Azores high pressure system, while shallow cumulus clouds are sustained by cold-air outbreaks, as revealed by their preference for postfrontal environments and northwesterly flows. An evaluation of climate model cloud regimes from phase 5 of CMIP (CMIP5) over the Azores shows that all models severely underpredict shallow cumulus clouds, while most models also underpredict the occurrence of stratocumulus cloud decks. It is demonstrated that the regime analysis can assist in the selection of case studies representing specific climatological cloud distributions. With all the tools now in place, a methodology is suggested to better understand cloud-dynamics interactions and attempt to explain and correct climate model cloud deficiencies. JF - Journal of Climate AU - Remillard, Jasmine AU - Tselioudis, George AD - Columbia University, and NASA Goddard Institute for Space Studies, New York, New York Y1 - 2015/12// PY - 2015 DA - December 2015 SP - 9707 EP - 9720 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 28 IS - 24 SN - 0894-8755, 0894-8755 KW - Meteorological & Geoastrophysical Abstracts; Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Atm/Ocean Structure/ Phenomena KW - Cumulus clouds KW - Stratiform clouds KW - Physical Meteorology and Climatology KW - Clouds KW - Observational techniques and algorithms KW - Climate classification/regimes KW - Models and modeling KW - Climate models KW - Hydrological Regime KW - Variability KW - Climate change KW - Convective systems KW - Storms KW - Data reanalysis KW - Low clouds KW - Evaluation KW - Cloud distribution KW - Extratropical cyclones KW - Climate model evaluation KW - Modelling KW - Azores High KW - Simulation Analysis KW - Climates KW - Model Studies KW - High pressure systems KW - Stratocumulus decks KW - ANE, Atlantic, Azores KW - Cloud structure KW - Numerical simulations KW - Boundaries KW - High Pressure KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General KW - M2 551.581:Latitudinal Influences (551.581) KW - Q2 09244:Air-sea coupling UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790971750?accountid=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+Climate&rft.atitle=Cloud+Regime+Variability+over+the+Azores+and+Its+Application+to+Climate+Model+Evaluation&rft.au=Remillard%2C+Jasmine%3BTselioudis%2C+George&rft.aulast=Remillard&rft.aufirst=Jasmine&rft.date=2015-12-01&rft.volume=28&rft.issue=24&rft.spage=9707&rft.isbn=&rft.btitle=&rft.title=Journal+of+Climate&rft.issn=08948755&rft_id=info:doi/10.1175%2FJCLI-D-15-0066.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Number of references - 38 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Clouds; High pressure systems; Climate change; Modelling; Azores High; Climate models; Convective systems; Low clouds; Data reanalysis; Storms; Stratocumulus decks; Numerical simulations; Cloud structure; Cloud distribution; Climate model evaluation; Extratropical cyclones; Cumulus clouds; Evaluation; Hydrological Regime; Variability; Simulation Analysis; Climates; Boundaries; High Pressure; Model Studies; ANE, Atlantic, Azores DO - http://dx.doi.org/10.1175/JCLI-D-15-0066.1 ER - TY - JOUR T1 - An Initial Assessment of the Surface Reference Technique Applied to Data from the Dual-Frequency Precipitation Radar (DPR) on the GPM Satellite AN - 1790970788; PQ0003081071 AB - It has long been recognized that path-integrated attenuation (PIA) can be used to improve precipitation estimates from high-frequency weather radar data. One approach that provides an estimate of this quantity from airborne or spaceborne radar data is the surface reference technique (SRT), which uses measurements of the surface cross section in the presence and absence of precipitation. Measurements from the dual-frequency precipitation radar (DPR) on the Global Precipitation Measurement (GPM) satellite afford the first opportunity to test the method for spaceborne radar data at Ka band as well as for the Ku-band-Ka-band combination. The study begins by reviewing the basis of the single- and dual-frequency SRT. As the performance of the method is closely tied to the behavior of the normalized radar cross section (NRCS or sigma super(0)) of the surface, the statistics of sigma super(0) derived from DPR measurements are given as a function of incidence angle and frequency for ocean and land backgrounds over a 1-month period. Several independent estimates of the PIA, formed by means of different surface reference datasets, can be used to test the consistency of the method since, in the absence of error, the estimates should be identical. Along with theoretical considerations, the comparisons provide an initial assessment of the performance of the single- and dual-frequency SRT for the DPR. The study finds that the dual-frequency SRT can provide improvement in the accuracy of path attenuation estimates relative to the single-frequency method, particularly at Ku band. JF - Journal of Atmospheric and Oceanic Technology AU - Meneghini, Robert AU - Kim, Hyokyung AU - Liao, Liang AU - Jones, Jeffrey A AU - Kwiatkowski, John M AD - NASA Goddard Space Flight Center, Greenbelt, Maryland Y1 - 2015/12// PY - 2015 DA - December 2015 SP - 2281 EP - 2296 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 32 IS - 12 SN - 0739-0572, 0739-0572 KW - Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Observational techniques and algorithms KW - Radars/Radar observations KW - Remote sensing KW - Satellite observations KW - Remote Sensing KW - Testing Procedures KW - Atmospheric precipitations KW - Marine KW - Satellite Technology KW - Airborne sensing KW - Statistics KW - Radar cross sections KW - Statistical analysis KW - Global precipitation KW - Precipitation KW - Methodology KW - Satellite sensing KW - Performance Evaluation KW - Weather radar KW - Assessments KW - Radar KW - Hydrologic Data KW - SW 0810:General KW - O 4080:Pollution - Control and Prevention KW - Q2 09162:Methods and instruments KW - M2 551.577:General Precipitation (551.577) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790970788?accountid=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=An+Initial+Assessment+of+the+Surface+Reference+Technique+Applied+to+Data+from+the+Dual-Frequency+Precipitation+Radar+%28DPR%29+on+the+GPM+Satellite&rft.au=Meneghini%2C+Robert%3BKim%2C+Hyokyung%3BLiao%2C+Liang%3BJones%2C+Jeffrey+A%3BKwiatkowski%2C+John+M&rft.aulast=Meneghini&rft.aufirst=Robert&rft.date=2015-12-01&rft.volume=32&rft.issue=12&rft.spage=2281&rft.isbn=&rft.btitle=&rft.title=Journal+of+Atmospheric+and+Oceanic+Technology&rft.issn=07390572&rft_id=info:doi/10.1175%2FJTECH-D-15-0044.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Number of references - 31 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Atmospheric precipitations; Satellite sensing; Airborne sensing; Remote sensing; Methodology; Weather radar; Radar; Global precipitation; Statistical analysis; Radar cross sections; Precipitation; Testing Procedures; Remote Sensing; Satellite Technology; Performance Evaluation; Statistics; Assessments; Hydrologic Data; Marine DO - http://dx.doi.org/10.1175/JTECH-D-15-0044.1 ER - TY - JOUR T1 - Shortwave TOA Cloud Radiative Forcing Derived from a Long-Term (1980-Present) Record of Satellite UV Reflectivity and CERES Measurements AN - 1790969392; PQ0003081121 AB - A 34-yr record of shortwave top-of-atmosphere (TOA) radiative cloud forcing is derived from UV Lambertian equivalent reflectivity (LER) data constructed using measured upwelling radiances from the Nimbus-7 Solar Backscatter Ultraviolet (SBUV) and from seven NOAA SBUV/2 instruments on polar-orbiting satellites. The approach is to scale the dimensionless UV LER data to match the CERES shortwave cloud radiative forcing when they are concurrent (2000-13). The underlying trends of this new longer-term CERES-like data record are solely based on the UV LER record. The good agreement between trends and anomalies of the CERES-like and CERES shortwave cloud forcing records during the overlapping data period supports using this new dataset for extended climate studies. The estimated linear trend for the shortwave TOA radiative forcing due to clouds from 60 degree S to 60 degree N is +1.47 W m super(-2) with a 0.11 uncertainty at the 95% confidence level over the 34-yr period 1980-2013. JF - Journal of Climate AU - Weaver, Clark AU - Herman, Jay AU - Labow, Gordon AU - Larko, David AU - Huang, L-K AD - Earth System Science Interdisciplinary Center, University of Maryland, College Park, College Park, and Atmospheric Chemistry and Dynamics Branch, NASA Goddard Space Flight Center, Greenbelt, Maryland Y1 - 2015/12// PY - 2015 DA - December 2015 SP - 9473 EP - 9488 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 28 IS - 23 SN - 0894-8755, 0894-8755 KW - Meteorological & Geoastrophysical Abstracts; Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Physical Meteorology and Climatology KW - Cloud forcing KW - Remote Sensing KW - Satellite Technology KW - Reflectance KW - Backscatter KW - Upwelling KW - Climates KW - Remote sensing KW - Solar ultraviolet irradiance KW - Clouds KW - Satellite sensing KW - Radiative forcing KW - Asteroids KW - Atmospheric forcing KW - Ultraviolet radiation KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General 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/1790969392?accountid=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+Climate&rft.atitle=Shortwave+TOA+Cloud+Radiative+Forcing+Derived+from+a+Long-Term+%281980-Present%29+Record+of+Satellite+UV+Reflectivity+and+CERES+Measurements&rft.au=Weaver%2C+Clark%3BHerman%2C+Jay%3BLabow%2C+Gordon%3BLarko%2C+David%3BHuang%2C+L-K&rft.aulast=Weaver&rft.aufirst=Clark&rft.date=2015-12-01&rft.volume=28&rft.issue=23&rft.spage=9473&rft.isbn=&rft.btitle=&rft.title=Journal+of+Climate&rft.issn=08948755&rft_id=info:doi/10.1175%2FJCLI-D-14-00551.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Number of references - 19 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Satellite sensing; Reflectance; Backscatter; Upwelling; Ultraviolet radiation; Atmospheric forcing; Remote sensing; Clouds; Radiative forcing; Asteroids; Solar ultraviolet irradiance; Remote Sensing; Satellite Technology; Climates DO - http://dx.doi.org/10.1175/JCLI-D-14-00551.1 ER - TY - JOUR T1 - Air-mass Origin in the Arctic. Part II: Response to Increases in Greenhouse Gases AN - 1790966244; PQ0003081144 AB - Future changes in transport from Northern Hemisphere (NH) midlatitudes into the Arctic are examined using rigorously defined air-mass fractions that partition air in the Arctic according to where it last had contact with the planetary boundary layer (PBL). Boreal winter (December-February) and summer (June-August) air-mass fraction climatologies are calculated for the modeled climate of the Goddard Earth Observing System Chemistry-Climate Model (GEOSCCM) forced with the end-of-twenty-first century greenhouse gases and ozone-depleting substances. The modeled projections indicate that the fraction of air in the Arctic that last contacted the PBL over NH midlatitudes (or air of "midlatitude origin") will increase by about 10% in both winter and summer. The projected increases during winter are largest in the upper and middle Arctic troposphere, where they reflect an upward and poleward shift in the transient eddy meridional wind, a robust dynamical response among comprehensive climate models. The boreal winter response is dominated by (~5%-10%) increases in the air-mass fractions originating over the eastern Pacific and the Atlantic, while the response in boreal summer mainly reflects (~5%) increases in air of Asian and North American origin. The results herein suggest that future changes in transport from midlatitudes may impact the composition-and, hence, radiative budget-in the Arctic, independent of changes in emissions. JF - Journal of Climate AU - Orbe, Clara AU - Newman, Paul A AU - Waugh, Darryn W AU - Holzer, Mark AU - Oman, Luke D AU - Li, Feng AD - Laboratory for Atmospheric Chemistry and Dynamics, NASA Goddard Space Flight Center, Greenbelt, Maryland Y1 - 2015/12// PY - 2015 DA - December 2015 SP - 9105 EP - 9120 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 28 IS - 23 SN - 0894-8755, 0894-8755 KW - Meteorological & Geoastrophysical Abstracts; Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Geographic location/entity KW - Arctic KW - Circulation/Dynamics KW - Transport KW - Models and modeling KW - Climate models KW - Tracers KW - Meteorological data KW - Climate change KW - Boundary Layers KW - Ocean-atmosphere system KW - Climatology KW - IN, Pacific KW - Atmospheric boundary layer KW - Wind KW - Modelling KW - Temperature effects KW - Marine KW - North America KW - Climates KW - Brackish KW - Troposphere KW - Greenhouse effect KW - Oceanic eddies KW - Projections KW - A, Atlantic KW - Ecosystem disturbance KW - Model Studies KW - PN, Arctic KW - Eddies KW - Boundary layers KW - Greenhouse gases KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General KW - M2 551.581:Latitudinal Influences (551.581) KW - Q2 09244:Air-sea coupling UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1790966244?accountid=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+Climate&rft.atitle=Air-mass+Origin+in+the+Arctic.+Part+II%3A+Response+to+Increases+in+Greenhouse+Gases&rft.au=Orbe%2C+Clara%3BNewman%2C+Paul+A%3BWaugh%2C+Darryn+W%3BHolzer%2C+Mark%3BOman%2C+Luke+D%3BLi%2C+Feng&rft.aulast=Orbe&rft.aufirst=Clara&rft.date=2015-12-01&rft.volume=28&rft.issue=23&rft.spage=9105&rft.isbn=&rft.btitle=&rft.title=Journal+of+Climate&rft.issn=08948755&rft_id=info:doi/10.1175%2FJCLI-D-15-0296.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-05-01 N1 - Number of references - 36 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Temperature effects; Boundary layers; Climate change; Ocean-atmosphere system; Troposphere; Oceanic eddies; Greenhouse effect; Ecosystem disturbance; Modelling; Meteorological data; Climate models; Climatology; Atmospheric boundary layer; Greenhouse gases; Eddies; Climates; Boundary Layers; Projections; Arctic; Wind; Model Studies; PN, Arctic; North America; IN, Pacific; A, Atlantic; Marine; Brackish DO - http://dx.doi.org/10.1175/JCLI-D-15-0296.1 ER - TY - JOUR T1 - Emissions and chemistry of volatile organic compounds in early spring of Western U.S.; interactions between oil/gas emissions and biogenic emissions AN - 1789755496; 2016-042533 AB - A series of research flights with the NOAA WP-3D aircraft were conducted during the SONGNEX campaign (www.esrl.noaa.gov/csd/projects/songnex) to characterize emissions of trace gases from oil and gas basins in the Western United States and their chemical transformations. Volatile organic compounds (VOCs) were measured by a newly developed chemical ionization mass spectrometer that uses H3O+ for ionization and a high-resolution time-of-flight mass spectrometer for detection (H3O+ CIMS). Results from the measurements will be presented at the meeting. Emission fluxes of VOCs can be determined both by the mass balance and eddy covariance methods. To investigate the potential for eddy covariance flux measurements, we focus on two flights conducted over the Haynesville shale basin on April 4 and April 25, 2015, respectively. Much higher concentrations of biogenic VOCs (isoprene, monoterpenes and methanol) were measured during the flight on April 25, 2015, which provides an opportunity to evaluate our instrument for the eddy covariance technique. Emissions and deposition of various hydrocarbons and oxygenated VOCs are determined and flux divergence derived from flux estimates at different altitudes is used to explore formation and loss processes of organic species in the boundary layer. Based on results from the eddy covariance technique, we will discuss some implications on distribution of emission strength in an oil/gas basin, i.e. what is the relative importance of high versus low emitters to the total emissions. We will also investigate the roles of biogenic emissions in the chemical evolution of oil and gas emissions by comparing the two flights. JF - American Geophysical Union Fall Meeting AU - Yuan, B AU - Koss, A AU - Warneke, C AU - Gilman, J AU - Lerner, B M AU - Peischl, J AU - Ryerson, T B AU - Sjostedt, S J AU - Thompson, C R AU - Wild, R J AU - Brown, S S AU - Neuman, J A AU - Eilerman, S J AU - Wolfe, G M AU - Saint Clair, J M AU - Hanisco, T F AU - Thayer, M P AU - Keutsch, F N AU - De Gouw, J A AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract A11M EP - 0250 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789755496?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Emissions+and+chemistry+of+volatile+organic+compounds+in+early+spring+of+Western+U.S.%3B+interactions+between+oil%2Fgas+emissions+and+biogenic+emissions&rft.au=Yuan%2C+B%3BKoss%2C+A%3BWarneke%2C+C%3BGilman%2C+J%3BLerner%2C+B+M%3BPeischl%2C+J%3BRyerson%2C+T+B%3BSjostedt%2C+S+J%3BThompson%2C+C+R%3BWild%2C+R+J%3BBrown%2C+S+S%3BNeuman%2C+J+A%3BEilerman%2C+S+J%3BWolfe%2C+G+M%3BSaint+Clair%2C+J+M%3BHanisco%2C+T+F%3BThayer%2C+M+P%3BKeutsch%2C+F+N%3BDe+Gouw%2C+J+A%3BAnonymous&rft.aulast=Yuan&rft.aufirst=B&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - How the assumed size distribution of dust minerals affects the predicted ice forming nuclei AN - 1789753706; 2016-042539 AB - The formation of ice in clouds depends on the availability of ice forming nuclei (IFN). Dust aerosol particles are considered the most important source of IFN at a global scale. Recent laboratory studies have demonstrated that the mineral feldspar provides the most efficient dust IFN for immersion freezing and together with kaolinite for deposition ice nucleation, and that the phyllosilicates illite and montmorillonite (a member of the smectite group) are of secondary importance.A few studies have applied global models that simulate mineral specific dust to predict the number and geographical distribution of IFN. These studies have been based on the simple assumption that the mineral composition of soil as provided in data sets from the literature translates directly into the mineral composition of the dust aerosols. However, these tables are based on measurements of wet-sieved soil where dust aggregates are destroyed to a large degree. In consequence, the size distribution of dust is shifted to smaller sizes, and phyllosilicates like illite, kaolinite, and smectite are only found in the size range 2 mu m as part of dust aggregates. Conversely, the mass fraction of feldspar is smaller in this size range, varying with the geographical location. This may have a significant effect on the predicted IFN number and its geographical distribution. An improved mineral specific dust aerosol module has been recently implemented in the NASA GISS Earth System ModelE2. The dust module takes into consideration the disaggregated state of wet-sieved soil, on which the tables of soil mineral fractions are based. To simulate the atmospheric cycle of the minerals, the mass size distribution of each mineral in aggregates that are emitted from undispersed parent soil is reconstructed. In the current study, we test the null-hypothesis that simulating the presence of a large mass fraction of phyllosilicates in dust aerosols in the size range >2 mu m, in comparison to a simple model assumption where this is neglected, does not yield a significant effect on the magnitude and geographical distribution of the predicted IFN number. Results from sensitivity experiments are presented as well. JF - American Geophysical Union Fall Meeting AU - Perlwitz, Jan P AU - Fridlind, A M AU - Garcia-Pando, C Perez AU - Miller, R L AU - Knopf, D A AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract A11Q EP - 04 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789753706?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=How+the+assumed+size+distribution+of+dust+minerals+affects+the+predicted+ice+forming+nuclei&rft.au=Perlwitz%2C+Jan+P%3BFridlind%2C+A+M%3BGarcia-Pando%2C+C+Perez%3BMiller%2C+R+L%3BKnopf%2C+D+A%3BAnonymous&rft.aulast=Perlwitz&rft.aufirst=Jan&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - Feature detection in SAR interferograms with missing data displays fault slip near El Mayor-Cucapah and South Napa earthquakes AN - 1789748936; 2016-045039 AB - Edge detection identifies seismic or aseismic fault motion, as demonstrated in repeat-pass inteferograms obtained by the Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) program. But this identification, demonstrated in 2010, was not robust: for best results, it requires a flattened background image, interpolation into missing data (holes) and outliers, and background noise that is either sufficiently small or roughly white Gaussian. Proper treatment of missing data, bursting noise patches, and tiny noise differences at short distances apart from bursts are essential to creating an acceptably reliable method sensitive to small near-surface fractures. Clearly a robust method is needed for machine scanning of the thousands of UAVSAR repeat-pass interferograms for evidence of fault slip, landslides, and other local features: hand-crafted intervention will not do. Effective methods of identifying, removing and filling in bad pixels reveal significant features of surface fractures. A rich network of edges (probably fractures and subsidence) in difference images spanning the South Napa earthquake give way to a simple set of postseismically slipping faults. Coseismic El Mayor-Cucapah interferograms compared to post-seismic difference images show nearly disjoint patterns of surface fractures in California's Sonoran Desert; the combined pattern reveals a network of near-perpendicular, probably conjugate faults not mapped before the earthquake. The current algorithms for UAVSAR interferogram edge detections are shown to be effective in difficult environments, including agricultural (Napa, Imperial Valley) and difficult urban areas (Orange County). JF - American Geophysical Union Fall Meeting AU - Parker, Jay W AU - Donnellan, Andrea AU - Glasscoe, Margaret T AU - Stough, Timothy M AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract T23C EP - 2975 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789748936?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Feature+detection+in+SAR+interferograms+with+missing+data+displays+fault+slip+near+El+Mayor-Cucapah+and+South+Napa+earthquakes&rft.au=Parker%2C+Jay+W%3BDonnellan%2C+Andrea%3BGlasscoe%2C+Margaret+T%3BStough%2C+Timothy+M%3BAnonymous&rft.aulast=Parker&rft.aufirst=Jay&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - Polluted dust classification and its optical properties analysis using CALIPSO data and simulation AN - 1789748760; 2016-042508 AB - In CALIPSO Level 2 aerosol data, dust particles are classified into two subtypes, namely, pure dust and polluted dust based on lidar backscatter, depolarization ratio and surface types. In this research, the polluted dust subtype is found to have two distinct modes in terms of integrated depolarization ratio (IDR) and integrated total color ratio (ICR). Dust with smaller IDR and ICR occurs mainly over areas with strong smoke emissions such as industrial cities. This kind of polluted dust originating from East Asia is also found over the Pacific Ocean. In contrast, the other type originating from the Saharan desert with larger IDR and ICR occurs mainly over the Atlantic Ocean. The disparities of IDR and ICR may result from different pollutants. The polluted dust with smaller ICR and IDR should have stronger absorption of light and may contain black carbon. Other chemical compounds such as sea salts may account for polluted dust with larger ICR and IDR. To further separate the types of polluted dust, cluster analysis is applied to determine the centroid of each type in terms of IDR and ICR. Furthermore, scattering models of dust mixed with various pollutants are constructed to be included in a CALIPSO simulator. The simulated IDR and ICR values are compared with data to retrieve the chemical compositions of polluted dust. The difference of polluted dust over the Pacific and Atlantic Ocean provides new evidence about long-range transport of Asian dust to North America. The distribution of dust polluted by black carbon is determined, which can improve knowledge about the effect of black carbon on the earth's radiation budget. JF - American Geophysical Union Fall Meeting AU - Ding, J AU - Yang, P AU - Holz, R AU - Vaughan, M A AU - Hu, Y AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract A11A EP - 0005 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789748760?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Polluted+dust+classification+and+its+optical+properties+analysis+using+CALIPSO+data+and+simulation&rft.au=Ding%2C+J%3BYang%2C+P%3BHolz%2C+R%3BVaughan%2C+M+A%3BHu%2C+Y%3BAnonymous&rft.aulast=Ding&rft.aufirst=J&rft.date=2015-12-01&rft.volume=2015&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 2015 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 ER - TY - JOUR T1 - Slow and steady drop of the Atacama water table from approximately 15 ma constrained by (U-Th)/He dating of hematite AN - 1789747899; 2016-044992 AB - The western margin of the Central Andes in northern Chile and southern Peru has an arid climate that is thought to have persisted for at least 15 Ma. The onset of aridity has been linked to uplift of the Andes, which blocked moisture from the Amazon, creating a rain shadow. However, the timing of this uplift and its potential effect on regional climate is poorly understood, with uplift estimates ranging from slow and steady since > or =25 Ma to recent and rapid between approximately 10 and 6 Ma. A direct consequence of both tectonic uplift and climate desiccation is the downward migration of the water table. Therefore, the timing and rate of water table drop can help to discern between uplift and aridity models. Here, we directly track the temporal downward migration of the Atacama water table using (U-Th)/He dating of hematite. The hematite (Fe (sub 2) O (sub 3) ) formed by reaction of oxygenated groundwater with ferrous-bearing minerals above the redox interface. Thus, the depth of hematite precipitation as a function of time can be used to constrain the relative movement of the water table. Nine samples were collected in drill core from an active mine in northern Chile, providing precise depth profiles through the top few 100 m beneath the surface. Our results imply a slow and steady lowering of the water table from approximately 15 Ma to the present day at a rate of approximately 11 m/Ma. This change at approximately 15 Ma reflects onset of river incision due to either an increase in climate aridity or an increase in rock uplift rate along the western Andean margin. Whatever the cause, the steady rate of lowering of the water table implied by our data suggests that the driver has been constant over the last approximately 15 Ma. JF - American Geophysical Union Fall Meeting AU - Cooper, Frances J AU - Adams, Byron A AU - Blundy, Jon D AU - Farley, K A AU - McKeon, Ryan E AU - Ruggiero, Alberto A AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract T23A EP - 2928 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1789747899?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Slow+and+steady+drop+of+the+Atacama+water+table+from+approximately+15+ma+constrained+by+%28U-Th%29%2FHe+dating+of+hematite&rft.au=Cooper%2C+Frances+J%3BAdams%2C+Byron+A%3BBlundy%2C+Jon+D%3BFarley%2C+K+A%3BMcKeon%2C+Ryan+E%3BRuggiero%2C+Alberto+A%3BAnonymous&rft.aulast=Cooper&rft.aufirst=Frances&rft.date=2015-12-01&rft.volume=2015&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/10.1080%2F09581590902897394 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2015 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 ER - TY - JOUR T1 - Slip kinematics and ground motions of the 2015 Mw7.8 Gorkha, Nepal earthquake imaged with 5 Hz GPS data and ALOS-2 InSAR constraints AN - 1784737816; 2016-035992 AB - We present kinematic slip inversion results of the April 25, 2015 Mw 7.8 Gorkha, Nepal earthquake from the joint inversion of 5 Hz GPS data and ALOS-2 interferograms. This detailed geodetic imaging of earthquake rupture enhances our understanding of earthquake physics and induced ground shaking, the Gorkha earthquake is the first example of a large continental megathrust rupture beneath a high-rate (5 Hz) GPS network. Coupled with new ALOS-2 InSAR data collected in ScanSAR mode which covers the entire mainshock in a single pass we obtain an unprecedented view of the event purely with space geodesy. We produce source time functions for all the event subfaults and find the earthquake ruptures predominantly as a slip pulse of approximately 20 km width, with slow slip onset, peak sliding velocity of approximately 1 m/s and approximately 6 s duration. It propagated toward Kathmandu basin at approximately 3 km/s over approximately 140 km. We will discuss in detail the inversion technique and efforts to validate the results which show the slip distribution and smooth onset of slip to be a robust feature of the inversion. The smooth slip onset, indicating a large approximately 5 m slip-weakening distance, caused moderate ground shaking at high >1 Hz frequencies ( approximately 16% g) and limited damage to regular dwellings. With high-rate GPS data in and around Kathmandu and a strong motion sensor we also analyze ground motions within the city and find whole basin resonance at 4-5 s period, consistent with the slip pulse characteristics, which caused collapse of tall structures, including cultural artifacts. JF - American Geophysical Union Fall Meeting AU - Melgar, D AU - Galetzka, J AU - Genrich, Jeff F AU - Geng, J H AU - Owen, Susan E AU - Lindsey, Eric O AU - Xu, X AU - Shrestha, Prithvi Lal AU - Adhikari, L B AU - Bock, Y AU - Avouac, J P AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract S41D EP - 03 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 19:Seismology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1784737816?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Slip+kinematics+and+ground+motions+of+the+2015+Mw7.8+Gorkha%2C+Nepal+earthquake+imaged+with+5+Hz+GPS+data+and+ALOS-2+InSAR+constraints&rft.au=Melgar%2C+D%3BGaletzka%2C+J%3BGenrich%2C+Jeff+F%3BGeng%2C+J+H%3BOwen%2C+Susan+E%3BLindsey%2C+Eric+O%3BXu%2C+X%3BShrestha%2C+Prithvi+Lal%3BAdhikari%2C+L+B%3BBock%2C+Y%3BAvouac%2C+J+P%3BAnonymous&rft.aulast=Melgar&rft.aufirst=D&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-04-28 N1 - CODEN - #07548 ER - TY - JOUR T1 - Slip pulse characteristics, Kathmandu basin resonance and high-frequency waves radiation during unzipping of locked MHT by the 2015, Mw 7.8 Gorkha earthquake, Nepal AN - 1784737800; 2016-035991 AB - We use high-rate GPS, seismological and Synthetic Aperture Radar imagery (SAR) measurements to produce a detailed image of the seismic rupture during the 2015 Mw 7.8 Gorkha earthquake, Nepal. The earthquake ruptured a 150X50 km elliptical patch striking parallel to the Himalayan front located north of Kathmandu. This asperity represents only a small fraction of the previous locked portion of the Main Himalayan Thrust (MHT) along which the Himalaya is thrust over India. The earthquake initiated at western end of the ruptured patch, 75 km northwest of Kathmandu. It produced a slip pulse of approximately 20 km width, approximately 6 s duration with peak sliding velocity of approximately 1 m/s which propagated eastwards at approximately 2.8 km/s. High frequency seismic waves ( approximately 1 Hz) were radiated continuously as the earthquake unzipped the northern edge of the locked portion of the of the MHT, a zone of presumably high and heterogeneous pre-seismic stress. Most of the moment was actually released south, hence, updip, of the sources of high frequency seismic waves. The slip pulse there shows a remarkable smooth onset indicating a large effective slip-weakening distance of several meters. This smooth onset can explain the moderate ground shaking at high frequencies (>1 Hz) and the limited damage to regular few-storey high dwellings within Kathmandu basin. By contrast, the entire basin resonated at approximately 4-5 s for 30s resulting in the collapse of some tall buildings. The study suggests a deterministic control, of probably structural origin, of the source characteristics and induced ground shaking. JF - American Geophysical Union Fall Meeting AU - Avouac, J P AU - Meng, L AU - Melgar, D AU - Wei, S AU - Elliott, John R AU - Jolivet, R AU - Wang, Teng AU - Bock, Y AU - Stevens, V AU - Ampuero, J P AU - Galetzka, J AU - Genrich, Jeff F AU - Geng, J H AU - Owen, Susan E AU - Shrestha, Prithvi Lal AU - Moore, Angelyn W AU - Adhikari, L B AU - Hudnut, K W AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract S41D EP - 02 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1784737800?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Slip+pulse+characteristics%2C+Kathmandu+basin+resonance+and+high-frequency+waves+radiation+during+unzipping+of+locked+MHT+by+the+2015%2C+Mw+7.8+Gorkha+earthquake%2C+Nepal&rft.au=Avouac%2C+J+P%3BMeng%2C+L%3BMelgar%2C+D%3BWei%2C+S%3BElliott%2C+John+R%3BJolivet%2C+R%3BWang%2C+Teng%3BBock%2C+Y%3BStevens%2C+V%3BAmpuero%2C+J+P%3BGaletzka%2C+J%3BGenrich%2C+Jeff+F%3BGeng%2C+J+H%3BOwen%2C+Susan+E%3BShrestha%2C+Prithvi+Lal%3BMoore%2C+Angelyn+W%3BAdhikari%2C+L+B%3BHudnut%2C+K+W%3BAnonymous&rft.aulast=Avouac&rft.aufirst=J&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-04-28 N1 - CODEN - #07548 ER - TY - JOUR T1 - Basal conditions in Marie Byrd Land in the presence of a deep mantle plume AN - 1777468864; 2016-030838 AB - Conditions at the base of ice sheets are critical to understand ice motion and the future evolution of the ice sheets but remain largely unknown due to the lack of direct measurements. These conditions are influenced by the underlying crust and mantle, including the presence of mantle plumes, which translate into high geothermal heat flux at the interface between ice and the underlying bedrock. Recent seismic measurements in West Antarctica reveal the presence of a deep late-Cenozoic mantle plume in Marie Byrd Land but the spatial extent of the associated enhanced heat-flux remains poorly understood. We perform here a series of numerical experiments based on parameterization of the plume and ice sheet numerical modeling using the Ice Sheet System Model (ISSM) to better characterize the conditions at the base of Marie Byrd Land as well as provide more robust constraints to the heat supplied by the solid Earth and the characteristics of a deep mantle plume. Our results show that the presence of such a plume is compatible with the presence of ice in the West Antarctic Ice Sheet. While our simulations suggest that the geothermal heat flux cannot be as high as some recent studies suggest in West Antarctica, the presence of the plume has a strong influence on the thermal state of the ice in this area, including basal melt rate and ice hardness. Well-studied plumes beneath continental crust provide bounds on the spatial extent of heat supplied to the base of the crust and ice sheet from the deep mantle. JF - American Geophysical Union Fall Meeting AU - Seroussi, Helene L AU - Ivins, Erik Roman AU - Wiens, Doug AU - Nyblade, Andrew AU - Larour, Eric Y AU - Bondzio, Johannes H AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract C13D EP - 02 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777468864?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Basal+conditions+in+Marie+Byrd+Land+in+the+presence+of+a+deep+mantle+plume&rft.au=Seroussi%2C+Helene+L%3BIvins%2C+Erik+Roman%3BWiens%2C+Doug%3BNyblade%2C+Andrew%3BLarour%2C+Eric+Y%3BBondzio%2C+Johannes+H%3BAnonymous&rft.aulast=Seroussi&rft.aufirst=Helene&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2017-01-19 N1 - CODEN - #07548 ER - TY - JOUR T1 - Modeling ice front dynamics of Greenland outlet glaciers using ISSM AN - 1777468131; 2016-030821 AB - The recent increase in the rate of mass loss from the Greenland Ice Sheet is primarily due to the acceleration and thinning of outlet glaciers along the coast. This acceleration is a dynamic response to the retreat of calving fronts, which leads to a loss in resistive stresses. These processes need to be included in ice sheet models in order to be able to accurately reproduce current trends in mass loss, and in the long term reduce the uncertainty in the contribution of ice sheets to sea level rise. Today, the vast majority of ice sheet models that include moving boundaries are one dimensional flow line and vertical flow band models, that are not adapted to the complex geometries of Greenland outlet glaciers, as they do not accurately capture changes in lateral stresses. Here, we use the level set method to track moving boundaries within a 2D plane view model of the Ice Sheet System Model (ISSM), and investigate the sensitivity of Store Glacier, in western Greenland, to the amount of melting occurring at its calving front. We explore different calving laws and obtain the best results with a new simple calving law adapted from von Mises yield criterion. We show that the ocean circulation near the front and the amount of runoff are able to trigger ice front advance and retreat depending on the amount of melting that they produce at the calving face, but the bed topography controls the stable positions of the ice front. The modeled calving front of Store Glacier, for which we have quality bed topography and sea floor bathymetry data, is particularly stable because of the presence of a large sill at the glacier terminus. If the ice front detaches from this stabilizing sill due to larger amounts of melting at the front or due to large calving events, the glacier front starts to retreat as the bed deepens inland, until it finds another stabilizing feature in the bed topography. The new bed topography maps based on mass conservation make it possible to model more accurately the behavior of Greenland outlet glaciers compared to other mapping techniques. JF - American Geophysical Union Fall Meeting AU - Morlighem, Mathieu AU - Bondzio, Johannes H AU - Seroussi, Helene L AU - Rignot, Eric J AU - Anonymous Y1 - 2015/12// PY - 2015 DA - December 2015 SP - Abstract C12A EP - 06 PB - American Geophysical Union, Washington, DC VL - 2015 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777468131?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+ice+front+dynamics+of+Greenland+outlet+glaciers+using+ISSM&rft.au=Morlighem%2C+Mathieu%3BBondzio%2C+Johannes+H%3BSeroussi%2C+Helene+L%3BRignot%2C+Eric+J%3BAnonymous&rft.aulast=Morlighem&rft.aufirst=Mathieu&rft.date=2015-12-01&rft.volume=2015&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 2015 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 - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2017-01-19 N1 - CODEN - #07548 ER - TY - JOUR T1 - Effect of MODIS Terra radiometric calibration improvements on Collection 6 Deep Blue aerosol products: Validation and Terra/Aqua consistency AN - 1776672831; PQ0002801960 AB - The Deep Blue (DB) algorithm's primary data product is midvisible aerosol optical depth (AOD). DB applied to Moderate Resolution Imaging Spectroradiometer (MODIS) measurements provides a data record since early 2000 for MODIS Terra and mid-2002 for MODIS Aqua. In the previous data version (Collection 5, C5), DB production from Terra was halted in 2007 due to sensor degradation; the new Collection 6 (C6) has both improved science algorithms and sensor radiometric calibration. This includes additional calibration corrections developed by the Ocean Biology Processing Group to address MODIS Terra's gain, polarization sensitivity, and detector response versus scan angle, meaning DB can now be applied to the whole Terra record. Through validation with Aerosol Robotic Network (AERONET) data, it is shown that the C6 DB Terra AOD quality is stable throughout the mission to date. Compared to the C5 calibration, in recent years the RMS error compared to AERONET is smaller by 0.04 over bright (e.g., desert) and 0.01-0.02 over darker (e.g., vegetated) land surfaces, and the fraction of points in agreement with AERONET within expected retrieval uncertainty higher by 10% and 5%, respectively. Comparisons to the Aqua C6 time series reveal a high level of correspondence between the two MODIS DB data records, with a small positive (Terra-Aqua) average AOD offset <0.01. The analysis demonstrates both the efficacy of the new radiometric calibration efforts and that the C6 MODIS Terra DB AOD data remain stable (to better than 0.01 AOD) throughout the mission to date, suitable for quantitative scientific analyses. Key Points * Significant calibration updates from MODIS Terra C5 to C6 * Calibration updates improve the MODIS Deep Blue AOD retrieval * The Terra C6 Deep Blue AOD data set is stable over the mission to date JF - Journal of Geophysical Research: Atmospheres AU - Sayer, A M AU - Hsu, N C AU - Bettenhausen, C AU - Jeong, M-J AU - Meister, G AD - NASA Goddard Space Flight Center, Greenbelt, Maryland, USA. Y1 - 2015/12// PY - 2015 DA - December 2015 SP - 12 EP - 12,174 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 120 IS - 23 SN - 2169-897X, 2169-897X KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Aerosol Robotic Network (AERONET) KW - Aerosols KW - Mathematical models KW - Degradation KW - Sensors KW - Algorithms KW - Time series analysis KW - Polarization KW - Imaging techniques KW - Satellite data KW - Calibrations KW - Deserts KW - Oceans KW - MODIS (Moderate Resolution Imaging Spectrometer) KW - Optical depth of aerosols KW - Q2 09243:Structure, mechanics and thermodynamics KW - M2 551.510.42:Air Pollution (551.510.42) KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1776672831?accountid=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+Geophysical+Research%3A+Atmospheres&rft.atitle=Effect+of+MODIS+Terra+radiometric+calibration+improvements+on+Collection+6+Deep+Blue+aerosol+products%3A+Validation+and+Terra%2FAqua+consistency&rft.au=Sayer%2C+A+M%3BHsu%2C+N+C%3BBettenhausen%2C+C%3BJeong%2C+M-J%3BMeister%2C+G&rft.aulast=Sayer&rft.aufirst=A&rft.date=2015-12-01&rft.volume=120&rft.issue=23&rft.spage=12&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2015JD023878 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-03-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Aerosols; Mathematical models; Sensors; Deserts; Polarization; Imaging techniques; Aerosol Robotic Network (AERONET); Satellite data; Algorithms; Optical depth of aerosols; MODIS (Moderate Resolution Imaging Spectrometer); Time series analysis; Degradation; Calibrations; Oceans DO - http://dx.doi.org/10.1002/2015JD023878 ER - TY - JOUR T1 - Covariance between Arctic sea ice and clouds within atmospheric state regimes at the satellite footprint level AN - 1776672205; PQ0002801977 AB - Understanding the cloud response to sea ice change is necessary for modeling Arctic climate. Previous work has primarily addressed this problem from the interannual variability perspective. This paper provides a refined perspective of sea ice-cloud relationship in the Arctic using a satellite footprint-level quantification of the covariance between sea ice and Arctic low cloud properties from NASA A-Train active remote sensing data. The covariances between Arctic low cloud properties and sea ice concentration are quantified by first partitioning each footprint into four atmospheric regimes defined using thresholds of lower tropospheric stability and midtropospheric vertical velocity. Significant regional variability in the cloud properties is found within the atmospheric regimes indicating that the regimes do not completely account for the influence of meteorology. Regional anomalies are used to account for the remaining meteorological influence on clouds. After accounting for meteorological regime and regional influences, a statistically significant but weak covariance between cloud properties and sea ice is found in each season for at least one atmospheric regime. Smaller average cloud fraction and liquid water are found within footprints with more sea ice. The largest-magnitude cloud-sea ice covariance occurs between 500m and 1.2km when the lower tropospheric stability is between 16 and 24K. The covariance between low cloud properties and sea ice is found to be largest in fall and is accompanied by significant changes in boundary layer temperature structure where larger average near-surface static stability is found at larger sea ice concentrations. Key Points * Covariance of cloud properties and sea ice depends upon atmospheric state * Regional meteorology and sea ice alias into domain-averaged covariance * A weak magnitude covariance is found between sea ice and cloud properties JF - Journal of Geophysical Research: Atmospheres AU - Taylor, Patrick C AU - Kato, Seiji AU - Xu, Kuan-Man AU - Cai, Ming AD - NASA Langley Research Center, Climate Science Branch, Hampton, Virginia, USA. Y1 - 2015/12// PY - 2015 DA - December 2015 SP - 12656 EP - 12678 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 120 IS - 24 SN - 2169-897X, 2169-897X KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Remote Sensing KW - Hydrological Regime KW - Variability KW - Sea ice concentrations KW - Climate change KW - Statistical analysis KW - Remote sensing KW - Low clouds KW - Spatial variations KW - Arctic sea ice KW - Sea Ice KW - Vertical velocities KW - Cloud properties KW - Meteorology KW - Arctic climates KW - Seasonal variations KW - Marine KW - Satellite Technology KW - Ice KW - Climate models KW - Climates KW - Brackish KW - Velocity KW - Troposphere KW - Sea ice-cloud relationships KW - PN, Arctic KW - Clouds KW - Satellite sensing KW - Interannual variability KW - Sea ice KW - Meteorological regimes KW - Q2 09243:Structure, mechanics and thermodynamics KW - SW 0810:General KW - M2 551.326:Floating Ice (551.326) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1776672205?accountid=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+Geophysical+Research%3A+Atmospheres&rft.atitle=Covariance+between+Arctic+sea+ice+and+clouds+within+atmospheric+state+regimes+at+the+satellite+footprint+level&rft.au=Taylor%2C+Patrick+C%3BKato%2C+Seiji%3BXu%2C+Kuan-Man%3BCai%2C+Ming&rft.aulast=Taylor&rft.aufirst=Patrick&rft.date=2015-12-01&rft.volume=120&rft.issue=24&rft.spage=12656&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2015JD023520 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-03-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Spatial variations; Clouds; Satellite sensing; Sea ice; Climate change; Remote sensing; Troposphere; Meteorology; Seasonal variations; Climate models; Sea ice concentrations; Statistical analysis; Sea ice-cloud relationships; Low clouds; Interannual variability; Meteorological regimes; Arctic sea ice; Cloud properties; Vertical velocities; Arctic climates; Remote Sensing; Ice; Satellite Technology; Hydrological Regime; Variability; Climates; Sea Ice; Velocity; PN, Arctic; Marine; Brackish DO - http://dx.doi.org/10.1002/2015JD023520 ER - TY - JOUR T1 - Characterizing the lifetime and occurrence of stratospheric-tropospheric exchange events in the rocky mountain region using high-resolution ozone measurements AN - 1776658607; PQ0002801988 AB - The evolution of a Stratospheric-Tropospheric Exchange (STE) event from 4 to 8 August 2014 at Fort Collins, Colorado, is described. The event is characterized with observations from the Goddard Space Flight Center TROPospheric OZone (TROPOZ) Differential Absorption Lidar, the University of Wisconsin High Spectral Resolution Lidar, and multiple ozonesondes during NASA's Deriving Information on Surface Conditions from Column and Vertically Resolved Observations Relevant to Air Quality and the Front Range Air Pollution and Photochemistry Experiment (FRAPPE) campaigns. Based on the extended TROPOZ observations throughout the entire campaign, it was found that STE events have largely contributed to an additional 10-30 ppbv of ozone at Fort Collins. Additional measurements of ozone and relative humidity from the Atmospheric Infrared Sounder are characterize the transport of the intrusion. The Real-time Air Quality Modeling System simulated ozone agrees well with the TROPOZ ozone concentrations and altitude during the STE event. To extend the analysis into other seasons and years, the modeled ozone to potential vorticity ratio is used as a tracer for stratospheric air residing below the tropopause. It is found that at Fort Collins, CO, and depending on season from 2012 to 2014, between 18 and 31% of tropospheric ozone corresponds to stratospheric air. A relationship to determine the lifetime of stratospheric air below the tropopause is derived using the simulated ratio tracer. Results indicate that throughout summer 2014, 43% of stratospheric air resided below the tropopause for less than 12 h. However, nearly 39% persisted below the tropopause for 12-48 h and likely penetrated deeper in the troposphere. Key Points * A summertime Rocky Mountain STE event has been illustrated with high-resolution measurements * A 10-30 ppbv increase in tropospheric ozone at Fort Collins, CO, is related to stratospheric air * Stratospheric air is responsible for 18-31% of tropospheric ozone at Fort Collins during 2012-2014 JF - Journal of Geophysical Research: Atmospheres AU - Sullivan, John T AU - McGee, Thomas J AU - Thompson, Anne M AU - Pierce, RBradley AU - Sumnicht, Grant K AU - Twigg, Laurence W AU - Eloranta, Edwin AU - Hoff, Raymond M AD - Atmospheric Chemistry and Dynamics Laboratory, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA. Y1 - 2015/12// PY - 2015 DA - December 2015 SP - 12410 EP - 12424 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ United States VL - 120 IS - 24 SN - 2169-897X, 2169-897X KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - Photochemistry KW - Relative humidity KW - Tropopause KW - Lidar KW - USA, Wisconsin KW - North America, Rocky Mts. KW - Mountains KW - Ozone in troposphere KW - Altitude KW - Space exploration KW - Absorption KW - Seasonal variability KW - Ozone KW - Air Pollution KW - Atmospheric pollution KW - Humidity KW - Lidar observation of atmospheric pollution KW - USA, Colorado KW - Mountain regions KW - LIDAR KW - Pollution monitoring KW - Ozone measurements KW - Air quality KW - Relative Humidity KW - Carbon monoxide KW - Tracers KW - Potential vorticity KW - Emission measurements KW - Photochemistry of atmospheric pollution KW - Troposphere KW - Stratosphere KW - Air quality models KW - Air pollution KW - Lidar applications KW - Evolution KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION KW - SW 0810:General KW - Q2 09105:Research programmes and expeditions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1776658607?accountid=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+Geophysical+Research%3A+Atmospheres&rft.atitle=Characterizing+the+lifetime+and+occurrence+of+stratospheric-tropospheric+exchange+events+in+the+rocky+mountain+region+using+high-resolution+ozone+measurements&rft.au=Sullivan%2C+John+T%3BMcGee%2C+Thomas+J%3BThompson%2C+Anne+M%3BPierce%2C+RBradley%3BSumnicht%2C+Grant+K%3BTwigg%2C+Laurence+W%3BEloranta%2C+Edwin%3BHoff%2C+Raymond+M&rft.aulast=Sullivan&rft.aufirst=John&rft.date=2015-12-01&rft.volume=120&rft.issue=24&rft.spage=12410&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1002%2F2015JD023877 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-03-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Relative humidity; Air pollution; Carbon monoxide; Tracers; Potential vorticity; Tropopause; Troposphere; LIDAR; Ozone; Ozone measurements; Photochemistry of atmospheric pollution; Atmospheric pollution; Air quality; Lidar observation of atmospheric pollution; Air quality models; Ozone in troposphere; Lidar applications; Space exploration; Mountain regions; Seasonal variability; Pollution monitoring; Lidar; Humidity; Stratosphere; Mountains; Altitude; Absorption; Emission measurements; Photochemistry; Air Pollution; Evolution; Relative Humidity; North America, Rocky Mts.; USA, Colorado; USA, Wisconsin DO - http://dx.doi.org/10.1002/2015JD023877 ER - TY - JOUR T1 - Water equivalent hydrogen estimates from the first 200 sols of Curiosity's traverse (Bradbury Landing to Yellowknife Bay); results form the Dynamic Albedo of Neutrons (DAN) passive mode experiment AN - 1769967632; 2016-018690 JF - Icarus AU - Tate, C G AU - Moersch, J AU - Jun, I AU - Ming, D W AU - Mitrofanov, I AU - Litvak, M AU - Behar, A AU - Boynton, W V AU - Deflores, L P AU - Drake, D AU - Ehresmann, B AU - Fedosov, F AU - Golovin, D AU - Hardgrove, C J AU - Harshman, K AU - Hassler, D M AU - Kozyrev, A S AU - Kuzmin, R AU - Lisov, D AU - Malakhov, A AU - Milliken, R AU - Mischna, M AU - Mokrousov, M AU - Nikiforov, S AU - Sanin, A B AU - Starr, R AU - Varenikov, A AU - Vostrukhin, A AU - Zeitlin, C Y1 - 2015/12// PY - 2015 DA - December 2015 SP - 102 EP - 123 PB - Elsevier, New York, NY VL - 262 SN - 0019-1035, 0019-1035 KW - water KW - silicates KW - massive methods KW - albedo KW - Dynamic Albedo of Neutrons experiment KW - geotraverses KW - Mars KW - anomalies KW - Gale Crater KW - clay minerals KW - terrestrial planets KW - planets KW - water equivalent hydrogen KW - neutrons KW - hydrogen KW - Curiosity Rover KW - Mars Science Laboratory KW - water content KW - sheet silicates KW - cosmic rays KW - uncertainty KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1769967632?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Water+equivalent+hydrogen+estimates+from+the+first+200+sols+of+Curiosity%27s+traverse+%28Bradbury+Landing+to+Yellowknife+Bay%29%3B+results+form+the+Dynamic+Albedo+of+Neutrons+%28DAN%29+passive+mode+experiment&rft.au=Tate%2C+C+G%3BMoersch%2C+J%3BJun%2C+I%3BMing%2C+D+W%3BMitrofanov%2C+I%3BLitvak%2C+M%3BBehar%2C+A%3BBoynton%2C+W+V%3BDeflores%2C+L+P%3BDrake%2C+D%3BEhresmann%2C+B%3BFedosov%2C+F%3BGolovin%2C+D%3BHardgrove%2C+C+J%3BHarshman%2C+K%3BHassler%2C+D+M%3BKozyrev%2C+A+S%3BKuzmin%2C+R%3BLisov%2C+D%3BMalakhov%2C+A%3BMilliken%2C+R%3BMischna%2C+M%3BMokrousov%2C+M%3BNikiforov%2C+S%3BSanin%2C+A+B%3BStarr%2C+R%3BVarenikov%2C+A%3BVostrukhin%2C+A%3BZeitlin%2C+C&rft.aulast=Tate&rft.aufirst=C&rft.date=2015-12-01&rft.volume=262&rft.issue=&rft.spage=102&rft.isbn=&rft.btitle=&rft.title=Icarus&rft.issn=00191035&rft_id=info:doi/10.1016%2Fj.icarus.2015.09.002 L2 - http://www.sciencedirect.com/science/journal/00191035 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 46 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables, sketch map N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-03-03 N1 - CODEN - ICRSA5 N1 - SubjectsTermNotLitGenreText - albedo; anomalies; clay minerals; cosmic rays; Curiosity Rover; Dynamic Albedo of Neutrons experiment; Gale Crater; geotraverses; hydrogen; Mars; Mars Science Laboratory; massive methods; neutrons; planets; sheet silicates; silicates; terrestrial planets; uncertainty; water; water content; water equivalent hydrogen DO - http://dx.doi.org/10.1016/j.icarus.2015.09.002 ER - TY - JOUR T1 - Nano biosensors for neurochemical monitoring AN - 1753473108; PQ0002073653 AB - Neurochemicals such as dopamine (DA) and serotonin (S-HT) are linked to disorders such as Parkinson's disease, epilepsy, addiction and many others. Detection of and monitoring these neurochemicals in vivo and in vitro has become important in treating various disorders. The electroactive nature of DA and S-HT has enabled employing electrochemical techniques to detect them at low concentrations, and a variety of electrodes and approaches have been reported. The use of nanomaterials such as carbon nanotubes, graphene and nanowires has been advocated in recent years for the sensitive detection of neurochemicals. This article reviews the advances in nano biosensors for this application and discusses the future outlook and challenges. JF - Nano Convergence AU - Meyyappan, M AD - NASA Ames Research Center, Moffett Field, CA, 94035, USA, m.meyyappan@nasa.gov Y1 - 2015/12// PY - 2015 DA - December 2015 SP - 1 EP - 6 PB - Springer Science & Business Media, Seoul VL - 2 IS - 1 KW - CSA Neurosciences Abstracts; Biotechnology and Bioengineering Abstracts KW - Parkinson's disease KW - Serotonin KW - Biosensors KW - Neurodegenerative diseases KW - Movement disorders KW - Carbon KW - Dopamine KW - Epilepsy KW - Convergence KW - Electrodes KW - nanotubes KW - Addiction KW - nanotechnology KW - N3 11001:Behavioral and Cognitive Neuroscience KW - W 30955:Biosensors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1753473108?accountid=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=Nano+Convergence&rft.atitle=Nano+biosensors+for+neurochemical+monitoring&rft.au=Meyyappan%2C+M&rft.aulast=Meyyappan&rft.aufirst=M&rft.date=2015-12-01&rft.volume=2&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Nano+Convergence&rft.issn=2196-5404&rft_id=info:doi/10.1186%2Fs40580-015-0049-3 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-01-01 N1 - Number of references - 64 N1 - Last updated - 2016-02-18 N1 - SubjectsTermNotLitGenreText - Parkinson's disease; Serotonin; Biosensors; Neurodegenerative diseases; Dopamine; Carbon; Movement disorders; Convergence; Epilepsy; Electrodes; nanotubes; Addiction; nanotechnology DO - http://dx.doi.org/10.1186/s40580-015-0049-3 ER - TY - JOUR T1 - Evaluation of large-scale meteorological patterns associated with temperature extremes in the NARCCAP regional climate model simulations AN - 1751228347; PQ0002367465 AB - Large-scale meteorological patterns (LSMPs) associated with temperature extremes are evaluated in a suite of regional climate model (RCM) simulations contributing to the North American Regional Climate Change Assessment Program. LSMPs are characterized through composites of surface air temperature, sea level pressure, and 500 hPa geopotential height anomalies concurrent with extreme temperature days. Six of the seventeen RCM simulations are driven by boundary conditions from reanalysis while the other eleven are driven by one of four global climate models (GCMs). Four illustrative case studies are analyzed in detail. Model fidelity in LSMP spatial representation is high for cold winter extremes near Chicago. Winter warm extremes are captured by most RCMs in northern California, with some notable exceptions. Model fidelity is lower for cool summer days near Houston and extreme summer heat events in the Ohio Valley. Physical interpretation of these patterns and identification of well-simulated cases, such as for Chicago, boosts confidence in the ability of these models to simulate days in the tails of the temperature distribution. Results appear consistent with the expectation that the ability of an RCM to reproduce a realistically shaped frequency distribution for temperature, especially at the tails, is related to its fidelity in simulating LMSPs. Each ensemble member is ranked for its ability to reproduce LSMPs associated with observed warm and cold extremes, identifying systematically high performing RCMs and the GCMs that provide superior boundary forcing. The methodology developed here provides a framework for identifying regions where further process-based evaluation would improve the understanding of simulation error and help guide future model improvement and downscaling efforts. JF - Climate Dynamics AU - Loikith, Paul C AU - Waliser, Duane E AU - Lee, Huikyo AU - Neelin, JDavid AU - Lintner, Benjamin R AU - McGinnis, Seth AU - Mearns, Linda O AU - Kim, Jinwon AD - Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA, 91101, USA, paul.c.loikith@jpl.nasa.gov Y1 - 2015/12// PY - 2015 DA - December 2015 SP - 3257 EP - 3274 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 45 IS - 11-12 SN - 0930-7575, 0930-7575 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Sustainability Science Abstracts; Meteorological & Geoastrophysical Abstracts KW - Cold winters KW - Sea level KW - Evaluation KW - Frequency Distribution KW - INE, USA, California KW - Regional climate models KW - Atmospheric circulation KW - Extreme values KW - Valleys KW - Temperature extremes KW - Sea level pressure KW - Model Studies KW - Dynamic height KW - Sea level pressures KW - Numerical simulations KW - General circulation models KW - Boundaries KW - USA, Illinois, Chicago KW - Climate change KW - Summer KW - Regional climates KW - Boundary conditions KW - Data reanalysis KW - Air temperature KW - Winter KW - Distribution Patterns KW - Case studies KW - Meteorology KW - USA, Texas, Houston KW - Temperature effects KW - Marine KW - Climate models KW - Case Studies KW - Climates KW - Climate KW - Illustrations KW - Temperature KW - Simulation KW - Identification KW - Air-sea interaction KW - Extreme temperatures KW - Geopotential field analysis KW - Global warming KW - USA, Ohio KW - M2 551.583:Variations (551.583) KW - M3 1010:Issues in Sustainable Development KW - SW 0540:Properties of water KW - Q2 09244:Air-sea coupling UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1751228347?accountid=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=Evaluation+of+large-scale+meteorological+patterns+associated+with+temperature+extremes+in+the+NARCCAP+regional+climate+model+simulations&rft.au=Loikith%2C+Paul+C%3BWaliser%2C+Duane+E%3BLee%2C+Huikyo%3BNeelin%2C+JDavid%3BLintner%2C+Benjamin+R%3BMcGinnis%2C+Seth%3BMearns%2C+Linda+O%3BKim%2C+Jinwon&rft.aulast=Loikith&rft.aufirst=Paul&rft.date=2015-12-01&rft.volume=11&rft.issue=1&rft.spage=50&rft.isbn=&rft.btitle=&rft.title=Journal+of+Social+Work+in+End-of-Life+%26+Palliative+Care&rft.issn=15524256&rft_id=info:doi/10.1080%2F15524256.2015.1021070 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-12-01 N1 - Number of references - 64 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Temperature effects; Climate change; Illustrations; Atmospheric circulation; Extreme values; Identification; Air temperature; Sea level pressure; Dynamic height; Cold winters; Climate models; Regional climates; Data reanalysis; Boundary conditions; Temperature extremes; Air-sea interaction; Sea level pressures; Extreme temperatures; Numerical simulations; Geopotential field analysis; General circulation models; Global warming; Regional climate models; Case studies; Sea level; Climate; Temperature; Simulation; Meteorology; Summer; Valleys; Winter; Distribution Patterns; Evaluation; Frequency Distribution; Case Studies; Climates; Boundaries; Model Studies; USA, Illinois, Chicago; INE, USA, California; USA, Ohio; USA, Texas, Houston; Marine DO - http://dx.doi.org/10.1007/s00382-015-2537-x ER - TY - JOUR T1 - Inhibition of an Allergen-Antibody Reaction Related to Japanese Cedar Pollinosis Using DNA Aptamers Against the Cry j 2 Allergen AN - 1735364094 AB - Japanese cedar pollinosis is one of the most prevalent allergies in Japan. Reducing the allergen content of pollen plays a major role in the alleviation of allergy symptoms. Aptamers, oligonucleotides with an affinity for specific molecules, have great potential for reducing allergic activity. In this study, we report that the anti-Cry j 2 aptamers, CJ2-04 and CJ2-08, inhibited allergen-antibody reactions between Cry j 2, one of the major allergens in Japanese cedar pollen, and immunoglobulin E in serum collected from a patient with Japanese cedar pollinosis. In addition, the suppression of Ca[sup]2+ mobilization in basophils, which is related to degranulation, was observed in samples preincubated with either of these DNA aptamers. This study indicates that anti-Cry j 2 aptamers may inhibit allergen-antibody reactions and suppress the induction of Japanese cedar pollinosis, possibly leading to a novel external defense against this and other types of allergens. JF - Nucleic Acid Therapeutics AU - Ogihara, Kazumasa AU - Savory, Nasa AU - Abe, Koichi AU - Yoshida, Wataru AU - Arakawa, Mitsuru AU - Asahi, Masahiko AU - Kamohara, Seika AU - Ikebukuro, Kazunori Y1 - 2015/12// PY - 2015 DA - Dec 2015 SP - 311 EP - 316 CY - New Rochelle PB - Mary Ann Liebert, Inc. VL - 25 IS - 6 SN - 21593337 KW - Biology--Genetics KW - Allergies KW - Immunoglobulins KW - Deoxyribonucleic acid--DNA KW - Pollen UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1735364094?accountid=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=Nucleic+Acid+Therapeutics&rft.atitle=Inhibition+of+an+Allergen-Antibody+Reaction+Related+to+Japanese+Cedar+Pollinosis+Using+DNA+Aptamers+Against+the+Cry+j+2+Allergen&rft.au=Ogihara%2C+Kazumasa%3BSavory%2C+Nasa%3BAbe%2C+Koichi%3BYoshida%2C+Wataru%3BArakawa%2C+Mitsuru%3BAsahi%2C+Masahiko%3BKamohara%2C+Seika%3BIkebukuro%2C+Kazunori&rft.aulast=Ogihara&rft.aufirst=Kazumasa&rft.date=2015-12-01&rft.volume=25&rft.issue=6&rft.spage=311&rft.isbn=&rft.btitle=&rft.title=Nucleic+Acid+Therapeutics&rft.issn=21593337&rft_id=info:doi/10.1089%2Fnat.2015.0539 LA - English DB - ProQuest Central N1 - Copyright - (©) Copyright 2015, Mary Ann Liebert, Inc. N1 - Document feature - References N1 - Last updated - 2015-12-07 DO - http://dx.doi.org/10.1089/nat.2015.0539 ER - TY - JOUR T1 - Multiple oscillations in Neoarchaean atmospheric chemistry AN - 1734265554; 2015-110038 AB - The Great Oxidation Event (GOE) represents a crucial juncture in Earth history, signifying the rise in atmospheric oxygen from parts per million to percent levels at approximately 2.45-2.32 billion-years-ago (Ga). Although planetary oxygenation undoubtedly led to the inception of the contemporary Earth system, the trigger(s) and mechanism(s) controlling this chemical reorganisation remain elusive. Quantitative estimates of the atmosphere's composition in the prelude to the GOE are central to understanding this oxygenation event. Previous analyses of 2.65-2.5 Ga sediments from the Griqualand Basin (South Africa) invoke a tantalising picture of an unusual Earth environment, alluding to an atmosphere periodically dominated by a layer of organic particles ("haze") formed from methane photolysis. However, as yet this hypothesis has remained untested. Here we present four new coupled carbon and quadruple sulphur isotope records from distal, time equivalent (2.7-2.5 Ga), sedimentary successions from South Africa and Western Australia. These extended records reveal similar chemostratigraphic trends, supporting a dynamic terminal-Neoarchaean atmosphere, oscillating between a hazy state at elevated methane concentrations, and a haze-free anoxic background state. We suggest these atmospheric aberrations were related to heightened biogenic methane fluxes fuelled by enhanced nutrient delivery from climatically or weathering induced feedbacks. These data question the canonical view of a simple, unidirectional planetary oxygenation and signify that the overture to the GOE was governed by complex feedbacks within the Earth-biosphere system. Abstract Copyright (2015) Elsevier, B.V. JF - Earth and Planetary Science Letters AU - Izon, Gareth AU - Zerkle, Aubrey L AU - Zhelezinskaia, Iadviga AU - Farquhar, James AU - Newton, Robert J AU - Poulton, Simon W AU - Eigenbrode, Jennifer L AU - Claire, Mark W Y1 - 2015/12/01/ PY - 2015 DA - 2015 Dec 01 SP - 264 EP - 273 PB - Elsevier, Amsterdam VL - 431 SN - 0012-821X, 0012-821X KW - oxygen KW - isotopes KW - Western Australia KW - aliphatic hydrocarbons KW - stable isotopes KW - feedback KW - S-36/S-32 KW - oscillations KW - carbon KW - chemostratigraphy KW - Australia KW - Archean KW - South Africa KW - great oxidation event KW - Hamersley Basin KW - methane KW - Precambrian KW - Australasia KW - isotope ratios KW - paleoatmosphere KW - C-13/C-12 KW - photochemistry KW - alkanes KW - weathering KW - nutrients KW - organic compounds KW - biogenic processes KW - S-34/S-32 KW - photolysis KW - biosphere KW - Southern Africa KW - hydrocarbons KW - sulfur KW - Africa KW - S-33/S-32 KW - Griqualand Basin KW - Neoarchean KW - 12:Stratigraphy KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1734265554?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Multiple+oscillations+in+Neoarchaean+atmospheric+chemistry&rft.au=Izon%2C+Gareth%3BZerkle%2C+Aubrey+L%3BZhelezinskaia%2C+Iadviga%3BFarquhar%2C+James%3BNewton%2C+Robert+J%3BPoulton%2C+Simon+W%3BEigenbrode%2C+Jennifer+L%3BClaire%2C+Mark+W&rft.aulast=Izon&rft.aufirst=Gareth&rft.date=2015-12-01&rft.volume=431&rft.issue=&rft.spage=264&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2015.09.018 L2 - http://www.sciencedirect.com/science/journal/0012821X 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 - 75 N1 - Document feature - illus. N1 - SuppNotes - Includes appendices N1 - Last updated - 2015-11-19 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - Africa; aliphatic hydrocarbons; alkanes; Archean; Australasia; Australia; biogenic processes; biosphere; C-13/C-12; carbon; chemostratigraphy; feedback; great oxidation event; Griqualand Basin; Hamersley Basin; hydrocarbons; isotope ratios; isotopes; methane; Neoarchean; nutrients; organic compounds; oscillations; oxygen; paleoatmosphere; photochemistry; photolysis; Precambrian; S-33/S-32; S-34/S-32; S-36/S-32; South Africa; Southern Africa; stable isotopes; sulfur; weathering; Western Australia DO - http://dx.doi.org/10.1016/j.epsl.2015.09.018 ER - TY - JOUR T1 - Airborne lidar-based estimates of tropical forest structure in complex terrain: opportunities and trade-offs for REDD+ AN - 1717490355; PQ0001921094 AB - Background: Carbon stocks and fluxes in tropical forests remain large sources of uncertainty in the global carbon budget. Airborne lidar remote sensing is a powerful tool for estimating aboveground biomass, provided that lidar measurements penetrate dense forest vegetation to generate accurate estimates of surface topography and canopy heights. Tropical forest areas with complex topography present a challenge for lidar remote sensing. Results: We compared digital terrain models (DTM) derived from airborne lidar data from a mountainous region of the Atlantic Forest in Brazil to 35 ground control points measured with survey grade GNSS receivers. The terrain model generated from full-density (~20 returns m super(-2)) data was highly accurate (mean signed error of 0.19 plus or minus 0.97 m), while those derived from reduced-density datasets (8 m super(-2), 4 m super(-2), 2 m super(-2) and 1 m super(-2)) were increasingly less accurate. Canopy heights calculated from reduced-density lidar data declined as data density decreased due to the inability to accurately model the terrain surface. For lidar return densities below 4 m super(-2), the bias in height estimates translated into errors of 80-125 Mg ha super(-1) in predicted aboveground biomass. Conclusions: Given the growing emphasis on the use of airborne lidar for forest management, carbon monitoring, and conservation efforts, the results of this study highlight the importance of careful survey planning and consistent sampling for accurate quantification of aboveground biomass stocks and dynamics. Approaches that rely primarily on canopy height to estimate aboveground biomass are sensitive to DTM errors from variability in lidar sampling density. JF - Carbon Balance and Management AU - Leitold, Veronika AU - Keller, Michael AU - Morton, Douglas C AU - Cook, Bruce D AU - Shimabukuro, Yosio E AD - Remote Sensing Division, National Institute for Space Research (INPE), Sao Jose dos Campos, SP, CEP 12201-970, Brazil, veronika.leitold@nasa.gov Y1 - 2015/12// PY - 2015 DA - Dec 2015 SP - 1 EP - 12 PB - Springer-Verlag (Heidelberg), Tiergartenstrasse 17 Heidelberg 69121 Germany VL - 10 IS - 1 KW - Sustainability Science Abstracts KW - Forest management KW - Remote sensing KW - Lidar KW - Forests KW - Vegetation KW - Biomass KW - Mountains KW - Tropical forests KW - Tropical environments KW - ASW, Brazil KW - Conservation KW - Canopies KW - Topography KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1717490355?accountid=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=Carbon+Balance+and+Management&rft.atitle=Airborne+lidar-based+estimates+of+tropical+forest+structure+in+complex+terrain%3A+opportunities+and+trade-offs+for+REDD%2B&rft.au=Leitold%2C+Veronika%3BKeller%2C+Michael%3BMorton%2C+Douglas+C%3BCook%2C+Bruce+D%3BShimabukuro%2C+Yosio+E&rft.aulast=Leitold&rft.aufirst=Veronika&rft.date=2015-12-01&rft.volume=10&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Carbon+Balance+and+Management&rft.issn=1750-0680&rft_id=info:doi/10.1186%2Fs13021-015-0013-x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-09-01 N1 - Number of references - 53 N1 - Last updated - 2015-11-16 N1 - SubjectsTermNotLitGenreText - Mountains; Forest management; Tropical forests; Tropical environments; Remote sensing; Vegetation; Conservation; Forests; Lidar; Canopies; Biomass; Topography; ASW, Brazil DO - http://dx.doi.org/10.1186/s13021-015-0013-x ER -