eng; usa UTF8 dataset Methane Isotopes in South Pole Firn Air, 2008 NSIDC User Services National Snow and Ice Data Center none 1 303 492-6199 x CIRES, 449 UCB Boulder CO 80309-0449 USA nsidc@nsidc.org http://nsidc.org pointOfContact 2013-05-19 ISO 19115 Geographic Information - Metadata First Edition ISO 19115:2003 http://nsidc.org/data/nsidc-0502.html Methane Isotopes in South Pole Firn Air, 2008 2011 publication 2011-01-01 NSIDC-0502 http://dx.doi.org/10.7265/N55T3HFP NSIDC User Services National Snow and Ice Data Center none 1 303 492-6199 National Snow and Ice Data Center Boulder CO 80309-0449 USA nsidc@nsidc.org http://nsidc.org custodian NSIDC AGDC User Services NSIDC Antarctic Glaciological Data Center none 1 303 492-6199 National Snow and Ice Data Center Boulder CO 80309-0449 USA nsidc@nsidc.org http://nsidc.org/agdc/ custodian This data set contains depth profiles for delta carbon-13 (δ13C) and delta deuterium (δD) of methane (CH₄) 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 CH₄ 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. 2011. Methane Isotopes in South Pole Firn Air, 2008. [indicate subset used]. Boulder, Colorado USA: National Snow and Ice Data Center. http://dx.doi.org/10.7265/N55T3HFP. complete Todd A. Sowers Penn State University none 1 814 865-1921 317b Earth and Engineering Science Building University Park PA 16802 USA tas11@psu.edu principalInvestigator NSIDC User Services National Snow and Ice Data Center none 1 303 492-6199 x CIRES, 449 UCB Boulder CO 80309-0449 USA nsidc@nsidc.org pointOfContact asNeeded dataset series attribute NSIDC User Services National Snow and Ice Data Center none 1 303 492-6199 x CIRES, 449 UCB Boulder CO 80309-0449 USA nsidc@nsidc.org http://nsidc.org pointOfContact Continent > Antarctica > South Pole place NASA / GCMD Location Keywords 2008-02-05 revision 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 discipline NASA / GCMD Science Keywords 2008-02-05 revision theme None 2008-01-24 revision 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 theme otherRestrictions otherRestrictions Access Constraints : none Use Constraints : none eng; usa UTF8 climatologyMeteorologyAtmosphere -180 180 -90 90 20081201 20090131 ASCII Text FTP 1 KB Microsoft Excel FTP 51 KB NSIDC User Services National Snow and Ice Data Center 1 303 492-6199 National Snow and Ice Data Center Boulder CO 80309-0449 USA nsidc@nsidc.org http://nsidc.org custodian NSIDC AGDC User Services NSIDC Antarctic Glaciological Data Center 1 303 492-6199 National Snow and Ice Data Center Boulder CO 80309-0449 USA nsidc@nsidc.org http://nsidc.org/agdc/ custodian ftp://sidads.colorado.edu/pub/DATASETS/AGDC/nsidc0502_sowers_V01/ Data Access URL download http://nsidc.org/data/docs/agdc/nsidc0502_sowers/index.html Documentation URL information onLine 1 B FTP MASS SPECTROMETERS sensor GROUND-BASED OBSERVATIONS satellite MASS SPECTROMETERS LABORATORY satellite MASS SPECTROMETERS