NSIDC-0502 Sowers, T 20110101 Methane Isotopes in South Pole Firn Air, 2008 Boulder, Colorado USA NSIDC: National Snow and Ice Data Center http://nsidc.org/data/nsidc-0502.html http://dx.doi.org/10.7265/N55T3HFP This data set contains depth profiles for delta carbon-13 (&#948;13C) and delta deuterium (&#948;D) of methane (CH<sub>4</sub>) in South Pole firn air. The investigators obtained air samples from two boreholes during December 2008 and January 2009, and subsequently determined isotope ratios at 18 depths. The profiles represent a roughly 100-year history of the isotopic composition of CH<sub>4</sub> at South Pole Station (no depth-age model provided). Data are available via FTP as an ASCII text file (.txt) and a Microsoft Excel file (.xlsx). scientific research Sowers, T 20110101 Methane Isotopes in South Pole Firn Air, 2008 Boulder, Colorado USA NSIDC: National Snow and Ice Data Center http://nsidc.org/data/docs/agdc/nsidc0502_sowers/index.html 20081201 20090131 publication date Complete Unknown -180 180 90 -90 NASA Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > Cryosphere > Snow/Ice > Snow Depth > Meters Below Surface EARTH SCIENCE > Paleoclimate > Ice Core Records > Isotopes > Delta Carbon-13 of Methane EARTH SCIENCE > Paleoclimate > Ice Core Records > Isotopes > Delta Deuterium of Methane None NASA Global Change Master Directory (GCMD) Instrument Keywords MASS SPECTROMETERS NASA Global Change Master Directory (GCMD) Platform Keywords GROUND-BASED OBSERVATIONS LABORATORY ISO 19115 Topic Categories climatologyMeteorologyAtmosphere None AGDC Antarctica Carbon CARBON-13 CARBON ISOTOPES delta 13C deltaD delta deuterium Deuterium Firn firn air firn air chemistry Firn Air Isotope Measurements Firn Air Isotopes firn air samples Gas Isotopes ISOTOPES Methane methane isotopes Polar Firn Air Stable Isotopes NASA Global Change Master Directory (GCMD) Location Keywords Continent > Antarctica > South Pole 3 NASA Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > Cryosphere > Snow/Ice > Snow Depth > Meters Below Surface NASA Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > Paleoclimate > Ice Core Records > Isotopes > Delta Carbon-13 of Methane NASA Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > Paleoclimate > Ice Core Records > Isotopes > Delta Deuterium of Methane None None NSIDC User Services National Snow and Ice Data Center mailing
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University of Colorado
Boulder CO 80309-0449 USA 1 303 492-6199 1 303 492-2468 nsidc@nsidc.org NSIDC-0502 NSIDC cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NSIDC makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. ASCII Text ftp://sidads.colorado.edu/pub/DATASETS/AGDC/nsidc0502_sowers_V01/ None Microsoft Excel ftp://sidads.colorado.edu/pub/DATASETS/AGDC/nsidc0502_sowers_V01/ None 20130320 20130320 NSIDC User Services National Snow and Ice Data Center mailing
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder CO 80309-0449 USA 1 303 492-6199 1 303 492-2468 nsidc@nsidc.org FGDC Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata FGDC-STD-012-2002