Methane Isotopes in South Pole Firn Air, 2008  View Catalog Page Entry ID
NSIDC-0502
Summary
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).
Geographic Coverage
Spatial Coordinates:
Min Depth: 0 meters
Max Depth: 117.57 meters
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Data Set Citation
Dataset Creator: Sowers, T
Dataset Title: Methane Isotopes in South Pole Firn Air, 2008
Dataset Release Date: 2011-01-01
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Online Resource: http://nsidc.org/data/nsidc-0502.html
Dataset DOI: http://dx.doi.org/10.7265/N55T3HFP
Temporal Coverage
Start Date: 2008-12-01
Stop Date: 2009-01-31
Paleo Temporal Coverage
Paleo Start Date: 1900
Paleo Stop Date: 2009
Location Keywords
- CONTINENT ANTARCTICA SOUTH POLE
Science Keywords
- Cryosphere Snow/Ice Snow Depth Meters Below Surface
- Paleoclimate Ice Core Records Isotopes Delta Carbon-13 of Methane
- Paleoclimate Ice Core Records Isotopes Delta Deuterium of Methane
Ancillary Keywords
- 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
- Climatology/Meteorology/Atmosphere
Platform
- GROUND-BASED OBSERVATIONS
- LABORATORY
Instrument
Quality
The investigator analyzed 156 firn air samples from the 2008-2009 field season and 44 standards for δ13C and δD of CH4. The average standard deviation of replicate samples at each of the 18 depths was ±0.13 and ±4.2 for δ13C and δD, respectively.
Data Set Progress
complete
Originating Center
NSIDC_AGDC
Data Center
National Snow and Ice Data Center
Data Center URL: http://nsidc.org
Data Center Personnel
Name: NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
NSIDC Antarctic Glaciological Data Center
Data Center URL: http://nsidc.org/agdc/
Data Center Personnel
Name: NSIDC AGDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
Distribution
Distribution Media: FTP
Distribution Size: 1 KB
Distribution Format: ASCII Text
Distribution Media: FTP
Distribution Size: 51 KB
Distribution Format: Microsoft Excel
Personnel
Todd A. Sowers
Role: INVESTIGATOR
Phone: 1 814 865-1921
Email: tas11@psu.edu
Contact Address:
- Penn State University
- Earth and Environment Science Institute
- 317b Earth and Engineering Science Building
City: University Park
Province or State: PA
Postal Code: 16802
Country: USA
NSIDC User Services
Role: TECHNICAL CONTACT
Phone: 1 303 492-6199 x
Fax: 1 303 492-2468 x
Email: nsidc@nsidc.org
Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
Reference
Battle, M. et al. 1996. Atmospheric Gas Concentrations over the Past Century Measured in Air from Firn at the South Pole. Nature 383, 231-235.
Sowers, T., S. Bernard, O. Aballain, J. Chappellaz, J.M. Barnola, and T. Marik. 2005. Records of the delta 13C of atmospheric CH4 over the last 2 centuries as recorded in Antarctic snow and ice. Global Biogeochemical Cycles 19, doi:10.1029/2004GB002408.
Metadata Name and Version
Metadata Name: CEOS IDN DIF
Metadata Version: 9.7
Creation and Review Dates
DIF Creation Date: 2011-01-01
Last DIF Revision Date: 2013-03-20
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