Global Change Master Directorygsfc-gcmduso@mail.nasa.gov502013-05-22T12:50:23ZGCMD Search: Parameters|PALEOCLIMATE|ICE CORE RECORDS|ISOTOPEShttp://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 157 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Steig_0963924Isotope Data from the U.S.-Norway Antarctic Traverse30.0,-90.0,30.0,-60.02013-05-10T04:00:00ZIce cores and surface snow samples were collected from in overland traverses in East Antarctica: one from the Norwegian Troll Station to the United States South Pole Station in 2007-2008; and a return ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]LD2012-d18O-Native-ageAnnual Mean Water Isotope (d18O) Record for the "DSS" Law Dome Ice Core112.81,-66.77,112.81,-66.770174-01-01T00:00:00Z2007-12-31T00:00:00Z2013-02-06T05:00:00ZThe LD2012-d18O-Native-age record is the annual mean water isotope (d18O) record for the "DSS" (Dome Summit South) Law Dome ice core with extensions (e.g. As described in van Ommen et al., Nature ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]US_ITASE-99-1US ITASE-99-1 ice core (Research Funded by NSF OPP)-122.63,-80.62,-122.63,-80.621713-01-01T00:00:00Z2000-12-31T00:00:00Z2013-01-24T05:00:00ZSub-annually resolved ice core chemistry data from various sites on the Antarctic Ice Sheet were obtained from 1999 to 2008 during the US International Trans-Antarctic Scientific Expedition (US ITASE) ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]cuffey_0537661Collaborative Research: Stable Isotopes of Ice in the WAIS Divide Deep Ice Core-112.08,-79.47,-112.08,-79.472012-11-13T05:00:00ZThis award supports analyses of stable isotopes of water, dD, d18O and deuterium excess in the proposed West Antarctic Ice Sheet Divide (WAIS) deep ice core. The project will analyze a continuous ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_757Ice core paleoclimatology112.75,-66.75,112.85,-66.651994-01-01T00:00:00ZT00:00:00Z2012-09-20T04:00:00ZPrediction of future climate change requires knowledge of past changes. Polar snow forms an archive of environmental conditions that is accessible by drilling and analysing ice cores. This project ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_ARCTICArctic Environmental Change of the Last Four Centuries-180.0,50.0,180.0,90.01600-01-01T00:00:00Z2000-12-31T00:00:00Z2012-08-31T04:00:00ZAbstract (from the online documentation):
A compilation of paleoclimate records from lake sediments, trees, glaciers, and
marine sediments provides a view of circum-Arctic environmental variability ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_757_LD_d18OLaw Dome d18O data 2100BP to 1996 as 4-year averages112.8,-66.8,112.9,-66.72010-04-08T00:00:00Z2010-04-08T00:00:00Z2012-06-04T04:00:00ZLD2.1ky-grid4y - Law Dome d18O data 2100BP (Present=2000AD) to 1996 as 4-year averages.
Data set used in:
Jones, P.D. and M.E. Mann, Climate Over Past Millennia, Rev. Geo. 42(2), RG2002, doi:10.1029/2003RG000143, ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0502Methane Isotopes in South Pole Firn Air, 2008-180.0,-90.0,180.0,-90.02008-12-01T00:00:00Z2009-01-31T00:00:00Z2012-05-15T04:00:00ZThis data set contains depth profiles for delta carbon-13 (δ13C) and delta deuterium (δD) of methane (CH/4) in South Pole firn air. The investigators obtained air samples from two boreholes ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0310Carbon-13 Isotopic Composition of Atmospheric Methane in Firn Air, South Pole and Siple Dome, Antarctica-148.3023,-81.403,-148.3023,-81.4031995-01-01T00:00:00Z1995-01-31T00:00:00Z2001-01-01T00:00:00Z2001-01-31T00:00:00Z2012-05-14T04:00:00ZThis data set includes records of the delta carbon-13 (?13C) of methane (CH4) in firn air from the South Pole and trapped in bubbles in a short ice core from Siple Dome, Antarctica. Using two firn ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0435Methane Isotopes from the WAIS Divide Ice Core112.09,-79.47,112.09,-79.472008-01-01T00:00:00Z2008-12-30T00:00:00Z2012-05-14T04:00:00ZThis data set includes methane (CH4) isotope data from the West Antarctic Ice Sheet (WAIS) Divide ice core, WDC05A, in Antarctica. The data include depth, gas age, and the isotopic composition of ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0499Microparticle, Conductivity, and Density Measurements from the WAIS Divide Deep Ice Core, Antarctica-112.08833,-79.48278,-112.08833,-79.48278112.08833,-79.48278,112.08833,-79.482782006-01-01T00:00:00Z2006-12-31T00:00:00Z2012-05-14T04:00:00ZThis data set includes microparticle concentration, electrical conductivity, and density measurements from the West Antarctic Ice Sheet (WAIS) Divide deep ice core, WDC06A. Microparticle concentration ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0479Multiple Isotope Analysis of Sulfate in the West Antarctic Ice Sheet Divide Ice Core-114.21667,-78.916664,-114.21667,-78.9166642005-01-01T00:00:00Z2005-12-31T00:00:00Z2012-05-14T04:00:00ZThis data set contains measurements of multiple sulfur and oxygen isotopes from sulfates, from an ice core drilled at the West Antarctic Ice Sheet (WAIS) Divide site in 2005. The initial sulfate measurements, ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0407Nitrogen and Oxygen Gas Isotopes in the Siple Dome and Byrd Ice Cores, Antarctica-119.53333,-80.01667,-119.53333,-80.016672005-01-01T00:00:00Z2008-12-31T00:00:00Z2012-05-13T04:00:00ZThis data set consists of Gas-isotopic data from the Siple Dome and and Greenland Ice Sheet Project 2 (GISP2) ice cores covering roughly the last 100,000 years (100 ka), consisting of d15N (15N/14N) ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ARCSS137GISP2 Stable Isotopes (Deuterium, Deuterium Excess, and Oxygen)-38.0,72.0,-38.0,72.01995-08-01T00:00:00Z1995-09-30T00:00:00Z2012-05-11T04:00:00ZThe data compiled here consist of GISP2 deuterium, deuterium excess, and oxygen isotope values measured at the Stable Isotope Laboratory, Institute of Arctic and Alpine Research (INSTAAR), University ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ARCSS008Greenland Summit Ice Cores-38.0,72.0,-37.0,72.01989-01-01T00:00:00Z1994-12-31T00:00:00Z2012-05-11T04:00:00ZFrom 1989 to 1994, the U.S. and European scientific communities supported a bold undertaking to acquire an extensive paleoclimate record for the Northern Hemisphere. These efforts, termed the Greenland ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ARCSS069Into the Arctic -- Information and Educational Activities for Studying Climate2012-05-11T04:00:00Z'Into the Arctic' contains educational materials about climate and climate history in the Arctic that use real data and questions from the Greenland Ice Sheet Project Two (GISP2). Beginning in 1993, ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_3064High resolution studies of cosmogenic beryllium isotopes (10Be and 7Be) at Law Dome112.81,-66.75,112.85,-66.712008-09-30T00:00:00Z2009-03-31T00:00:00Z2012-05-03T04:00:00ZMetadata record for data from AAS (ASAC) Project 3064.
Public
10Be and 7Be are naturally-occurring radioactive isotopes produced in the Earth's atmosphere and surface by cosmic rays, at a rate controlled ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1004Air sampling and analysis from Antarctic firn and ice111.0,-66.8,114.0,-65.81976-06-30T00:00:00ZT00:00:00Z2012-04-04T04:00:00ZAir from the ice and firn (compressed snow) of the Antarctic ice sheet will be extracted and measured for atmospheric composition in the past. Gases of interest are greenhouse gases (carbon dioxide, ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1236ITASE reconnaissance firn core drilling and climate variability studies143.0,-73.0,170.0,-67.02003-09-30T00:00:00ZT00:00:00Z2012-03-14T04:00:00ZMetadata record for data from ASAC Project 1236
The dataset will include snow accumulation time series 1980-2000, with major ion chemistry, stable oxygen isotopes.
---- Public Summary from Project ...http://gcmd.gsfc.nasa.gov/getdif.htm?[IPEV]458_0_IPEV_FRWater stable isotopes on NEEM ice core51.055,77.448,51.055,77.4481960-01-01T00:00:00Z2008-08-08T00:00:00Z2012-01-26T05:00:00ZMeasurements of water stable isotopes (deuterium, oxygen 18, oxygen 17) as a function of depth on NEEM ice cores.http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1224Amery shallow ice coring71.0,-69.0,72.5,-68.92000-09-30T00:00:00Z2005-03-31T00:00:00Z2011-12-08T05:00:00ZMetadata record for data from ASAC Project 1224
See the link below for public details on this project.
---- Public Summary from Project ----
Ice core drilling is used to extract information from glacial ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]winckler_0636898Tracing Glacial-interglacial Changes in the Dust Source to Antarctica using Helium Isotopes2011-12-01T05:00:00ZThis award supports a project to study dust sources in Antarctic ice cores. Atmospheric aerosols play an important role both in global biogeochemical cycles as well as in the climate system of the ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]deglacial_water_isotope_composite_gicc05Antarctic Ice Core Deglacial Water Isotope Composite Record on GICC05112.8,-66.77,112.8,-66.77-119.52,-80.02,-119.52,-80.02-148.82,-81.67,-148.82,-81.670.07,-75.0,0.07,-75.0159.18,-72.82,159.18,-72.821994-07-01T00:00:00ZT00:00:00Z2011-10-11T04:00:00ZPrecise information on the relative timing of north-south climate variations is a key to resolving questions concerning the mechanisms that force and couple climate changes between the hemispheres. ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]DSS_age_scaleDerivation of an age scale for the Law Dome core - ice cores taken between 1987 and 1993112.8069,-66.7697,112.8069,-66.76971987-12-01T00:00:00Z2002-08-02T00:00:00Z2011-10-11T04:00:00ZRecords of methane, and oxygen isotopes (ice and air) for Law Dome DSS (Dome Summit South) core through the last deglaciation (9000-19000 before present).
Data are obtained from the entire DSS core, ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_757_LD2000LD2000 isotope stack - Law Dome d18O data 1800-1999 as annual averages112.8,-66.8,112.9,-66.71800-01-01T00:00:00Z1999-12-31T00:00:00Z2011-10-11T04:00:00Z"LD2000" Isotope record: 1800AD-1999AD"
This data set is that used in Schneider et al., 2006 and should be cited as such:
Schneider, D. P., Steig, E. J., van Ommen, ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0125GISP2 (B and D Core) Methane Concentrations-149.0,-81.0,-149.0,-81.01996-01-01T00:00:00Z1999-12-31T00:00:00Z2011-08-26T04:00:00ZThe data include methane data from the Greenland Ice Sheet Project 2 (GISP2) B & D Cores. Gas ages were calculated according to the methods described in Brook et al. 1996, and are subject to change. ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0107Concentration and Isotopic Composition of O2 and N2 in Trapped Gases of the Vostok Ice Core106.48,-72.28,106.48,-72.282011-07-28T04:00:00ZThese data describe the d18O of O2, d15N of N2, d18Oatm, and O2/N2 ratios of trapped gases in the Vostok ice core from East Antarctica. The investigator used a mass spectrometer to measure gas concentrations ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0123Siple Dome Core Date from Measurement of the d18O of Paleoatmospheric Oxygen-149.0,-81.0,-149.0,-81.01996-01-01T00:00:00Z1999-12-31T00:00:00Z2011-07-28T04:00:00ZThis data set is part of the West Antarctic Ice Sheet Cores (WAISCORES) project, an NSF-funded project to understand the influence of the West Antarctic ice sheet on climate and sea level change. ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0108Carbon-Isotopic Composition of Atmospheric CO2 since the Last Glacial Maximum158.71,-77.8,158.71,-77.82011-07-26T04:00:00ZThese data describe the concentration and carbon-isotopic composition (d13CO2) of atmospheric CO2 from air trapped in ice between 27,000 and 1,300 years before present from Taylor Dome, Antarctica. ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0121Visible Stratigraphic Dating, Siple Dome and Upstream C Cores-149.0,-81.0,-149.0,-81.01997-06-01T00:00:00Z1997-08-31T00:00:00Z2011-07-25T04:00:00ZThis data set is part of the West Antarctic Ice Sheet cores (WAISCORES) project, an NSF-funded project to understand the influence of the West Antarctic Ice Sheet on climate and sea level change. ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0098Firn Air Isotope and Temperature Measurements from Siple Dome and South Pole-102.0,-89.997,-102.0,-89.997-148.767,-81.667,-148.767,-81.6672011-07-19T04:00:00ZThis data set includes d15N, d18O/2, dO2/N2/4, d40Ar/4, d38/Ar/2, d84Kr/48, and d132Xe/96 values for air drawn from the top 15 to 50 m of firn at the South Pole (summer and winter 1998) and a site ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0134Siple Dome Highlights: Stable isotopes-149.0,-81.0,-149.0,-81.01996-01-01T00:00:00Z1999-12-31T00:00:00Z2011-07-19T04:00:00ZThis data set is part of the WAISCORES project, an NSF-funded project to understand the influence of the West Antarctic ice sheet on climate and sea level change. WAISCORES researchers acquired and ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0132Taylor Dome Ice Core Data158.0,-77.0,158.0,-77.01993-01-01T00:00:00Z1996-12-31T00:00:00Z2011-07-19T04:00:00ZThe collection site is Taylor Dome, an ice-accumulation area on the East Antarctic ice sheet. The dome is a ridge about 20 x 80 km, which lies inland of the Transantarctic Mountains. Deep drilling ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1092An environmental record of lead isotopes over four centuries at Law Dome, Antarctica110.0,-66.0,110.0,-66.01998-09-30T00:00:00Z2001-03-31T00:00:00Z2011-05-10T04:00:00ZAntarctic ice provides an archive of Earths atmospheric composition over time. It therefore records evidence of human impact on the atmosphere. Lead is a toxic element, whose isotopic fingerprint ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ARCSS046Regional Survey of Greenland, 1988 - Snow Pit Data-60.0,70.0,-60.0,70.01988-01-01T00:00:00Z1988-12-31T00:00:00Z2011-03-16T04:00:00ZInformation from two 2-meter snow pits, five 4-meter snow pits, and two 6-meter snow pits, all dug in 1988 from selected sites in Greenland, includes chemistry (H+), stable isotopes (Ca, Cl, Na, K, ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSIDC-0425US ITASE Stable Isotope Data, Antarctica-130.0,-90.0,-88.0,-65.01999-01-01T00:00:00Z2007-12-31T00:00:00Z2011-03-03T05:00:00ZThis data set includes stable isotope measurements from snow pits, firn, and ice cores collected by the the US component of the International Trans-Antarctic Scientific Expedition ( ITASE). The ITASE ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1172The relationship between climatic/environmental signals from high resolution snow pit studies and meteorological conditions112.8,-66.766,112.81,-66.761999-09-30T00:00:00Z2005-03-31T00:00:00Z2011-02-14T05:00:00ZMetadata record for data from ASAC Project 1172 See the link below for public details on this project.
---- Public Summary from Project ----
The aim of ice core drilling is to extract information ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_3025Ice coring 2008-2009 (Law Dome W10k, Mill Island PICO, Totten PICOs)90.0,-68.0,120.0,-64.02008-09-30T00:00:00Z2009-03-31T00:00:00Z2011-02-03T05:00:00ZMetadata record for data from AAS (ASAC) project 3025.
Public
An ice core drilling expedition is proposed for Aurora Basin, between Law Dome and Dome C. This will provide a climate record in excess ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ARCSS027Snow Pit and Ice Core Data from Southern Greenland, 1984-44.0,65.0,-44.0,65.01984-06-01T00:00:00Z1984-08-31T00:00:00Z2010-12-14T05:00:00ZThis collection includes surface snow sample, snow pit, and ice core data from summer of 1984 in Greenland (location - 65 degrees 6 minutes north, 44 degrees 52 minutes west, 2625 m a.s.l.). The data ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSF-ANT05-37930Collaborative Research: Stable Isotopes of Ice in the WAIS Divide Deep Ice Core-112.085,-79.467,-112.085,-79.4672006-06-01T00:00:00Z2010-05-31T00:00:00Z2010-12-07T05:00:00ZThis award supports analyses of stable isotopes of water, dD, d18O and deuterium excess in the proposed West Antarctic Ice Sheet Divide (WAIS) deep ice core. The project will produce a continuous ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]white_0537593Collaborative Research: Stable Isotopes of Ice in the WAIS Divide Deep Ice Core112.08,-79.47,112.08,-79.472010-12-07T05:00:00ZThis data set contains the record of stable isotopes of hydrogen and oxygen in the WAIS Divide WDC06A core from West Antarctica. Samples have been analyzed at high resolution (nominal 3cm intervals) ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]thiemens_0538520Multiple-isotope Analysis of Nitrate and Sulfate in the West Antarctic Ice Sheet Divide Ice Core -112.085,-79.467,-112.085,-79.4672005-12-19T00:00:00Z2007-12-31T00:00:00Z2010-08-31T04:00:00ZThe goal of this project is to use the isotopic composition of sulfate and nitrate in the WAIS Divide core to help place better constraints on the oxidant composition of the pre-industrial atmosphere. ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Nishiizumi-OPP0126343Cosmogenic Radionuclide in Ice Cores-148.812,-81.6588,-148.812,-81.65882010-07-07T04:00:00ZThis project is intended to provide a record of cosmogenic radionuclides, 10Be (half-life = 1.5 Myr) and 36Cl (0.30 Myr), concentrations in the Siple Dome ice cores. It is particularly instructive ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Moulton_Gas_DataElemental and isotopic composition of trapped gases in the horizontal Moulton ice core-134.8,-76.15,-134.7,-76.12010-07-07T04:00:00ZData are included for the elemental and isotopic composition of
trapped gases in the A, E and F trenches. Specifically, the d15N of
N2, d18O of atm O2, dO2/N2, dAr/N2, total gas content ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]vanderveen_OPP0321053Glacial Assessment: Past, Present and Future: Acquisition of Essential Research Instrumentation2010-07-07T04:00:00ZThe NSF OPP award # 0321053 supported a Major Research Instrumentation (MRI)
purchase of equipment for Ohio State University's Glacial Assessment Program
(GAP). The program has three major ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]thiemens_NSF0338363Investigation of Atmospheric Chemistry and Dynamics Through Oxygen and Sulfur Isotopes in Volcanic Sulfate 2010-07-07T04:00:00ZThis dataset contains chemical measurements of volcanic sulfate deposits in
Antarctic snow, in a collaborative project between South Dakota State
University (SDSU, Jihong Cole-Dai, PI) ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Sowers_0230021Moulton Gas Data-180.0,-90.0,180.0,-62.832010-07-07T04:00:00ZData on the elemental and isotopic composition of O2, N2, Ar and CH4 are
reported for three firn cores and two blu-ice cores from the Summit of Mt.
Moulton. For the firn cores, we measured ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]gas_comp_Dry_ValleysO2/N2/Ar ratios, and the isotopic composition of O2 and N2, in ice from Mullins Valley, Dry Valleys, Antarctica160.5833,-77.9,160.5833,-77.92010-07-07T04:00:00ZThis data set contains preliminary results of the study of the isotopic
composition of O2 and N2, and the O2/N2/Ar ratio, in ice samples from Mullins
Valley, Dry Valleys, Antarctica. ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]thiemens_0125761South Pole Atmospheric Nitrate Isotopic Analysis2003-12-01T00:00:00Z2004-12-31T00:00:00Z2010-07-07T04:00:00ZThis data set contains oxygen isotope measurements of nitrate from the South
Pole Amundsen-Scott Station. A 6 meter snow pit provides a 25-year record of
nitrate isotope variations and ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Conc_isotopic_O2_N2_Ar_GISP2The concentration of O2, N2, and Ar, and the isotopic composition of N2 and O2, in GISP2 (reanalysis of selected samples)-38.5,72.6,-38.5,72.62005-01-01T00:00:00Z2005-12-31T00:00:00Z2010-07-07T04:00:00ZThis data set includes values of the O2/N2/Ar ratio, and the d15N an d18O, of
trapped gases from about 30 depths in the GISP2 ice core between 40-100 ka.
Samples were analyzed in 2005.