NSIDC-0435
Methane Isotopes from the WAIS Divide Ice Core
Sowers, Todd
Methane Isotopes from the WAIS Divide Ice Core
2009-12-01
Boulder, Colorado USA
NSIDC: National Snow and Ice Data Center
http://nsidc.org/data/nsidc-0435.html
http://dx.doi.org/10.7265/N5J67DW0
Investigator
Todd
A.
Sowers
tas11@psu.edu
1 814 865-1921
Penn State University
Earth and Environment Science Institute
317b Earth and Engineering Science Building
University Park
PA
16802
USA
Technical Contact
NSIDC
User Services
nsidc@nsidc.org
1 303 492-6199 x
1 303 492-2468 x
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder
CO
80309-0449
USA
EARTH SCIENCE
Cryosphere
Glaciers/Ice Sheets
Ice Sheets
EARTH SCIENCE
Cryosphere
Snow/Ice
Snow/Ice Chemistry
EARTH SCIENCE
Paleoclimate
Ice Core Records
Isotopes
EARTH SCIENCE
Paleoclimate
Ice Core Records
Methane
EARTH SCIENCE
Terrestrial Hydrosphere
Snow/Ice
Snow/Ice Chemistry
Climatology/Meteorology/Atmosphere
Firn Air Isotopes
Ice Sheet
West Antarctic Ice Sheet
MASS SPECTROMETERS
SPECTROMETERS
FIELD INVESTIGATION
FIELD SURVEYS
LABORATORY
2008-01-01
2008-12-30
1000 ybp
present
Phanerozoic
Cenozoic
Cenozoic
complete
-79.47
-79.47
112.09
112.09
1766 meters
1766 meters
300 meters
CONTINENT
ANTARCTICA
GEOGRAPHIC REGION
POLAR
0.1 meters
5 years
English
NSIDC_AGDC
NSIDC
National Snow and Ice Data Center
http://nsidc.org
Data Center Contact
NSIDC
User Services
nsidc@nsidc.org
1 303 492-6199
1 303 492-2468
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder
CO
80309-0449
USA
NSIDC_AGDC
NSIDC Antarctic Glaciological Data Center
http://nsidc.org/agdc/
Data Center Contact
NSIDC AGDC
User Services
nsidc@nsidc.org
1 303 492-6199
1 303 492-2468
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder
CO
80309-0449
USA
FTP
32 KB
Microsoft Excel
Mischler, J. A., T. A. Sowers, R. B. Alley, M. Battle, J. R. McConnell, L. Mitchell, T. Popp, E. Sofen, and M. K. Spencer. 2009. Carbon and hydrogen isotopic composition of methane over the last 1000 years, Global Biogeochem. Cycles, 23, GB4024, doi:10.1029/2009GB003460.
Sowers, T. 2006. Late Quaternary atmospheric CH4 isotope record suggests marine clathrates are stable. Science 311: 838-841.
Sowers, T., S. Bernard, O. Aballain, J. Chappellaz, J.-M. Barnola and T. Marik. 2005. Records of the d13C of atmospheric CH4 over the last two centuries as recorded in Antarctic snow and ice. Global Biogeochemical Cycles 19(GB2002).
Sowers, T. A. 2009. Atmospheric methane isotope records covering the Holocene period. Quaternary Science Reviews doi:10.1016/j.quascirev.2009.05.023.
This 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 methane (∂13C and ∂D of CH4). The ice core was collected during the 2005-2006 Antarctic field season. The CH4 isotope data was generated in 2008 using wet extraction methodology. Samples span the last 1,000 years, at a resolution of about 15 years. Data for samples above 69 meters were from firn air, and data below 69 meters from ice. The dating of the ice was based on continuous chemical analyses above 69 meters and Electrical Conductivity/Dielectric Property (ECM/DEP) measurements from ice. Dating uncertainty is estimated to be better than five years.
Data are available via FTP in Microsoft Excel (.xls) tab delimited format
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CEOS IDN DIF
9.7
2009-12-01
2013-03-20
Added DOI