Carbon-13 Isotopic Composition of Atmospheric Methane in Firn Air, South Pole and Siple Dome, Antarctica

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Entry ID

NSIDC-0310

Summary

This data set includes records of the delta carbon-13 (δ¹³C) 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 air samples, one from January 1995 and the other from January 2001, investigators reconstructed records of the isotopic composition of paleoatmospheric methane covering the last 2 centuries, from 1820 to 2001.

Data are in Microsoft Excel and Microsoft Word formats and are available via FTP.

Data Set Citation

Dataset Creator: Todd Sowers
Dataset Title: Carbon-13 Isotopic Composition of Atmospheric Methane in Firn Air, Siple Dome, Antarctica
Dataset Release Date: 2007-07-09
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: National Snow and Ice Data Center (NSIDC)
Data Presentation Form: Digital Media
Online Resource: http://nsidc.org/data/nsidc-0310.html

Temporal Coverage

Start Date: 1995-01-01
Stop Date: 1995-01-31

Start Date: 2001-01-01
Stop Date: 2001-01-31

Paleo Temporal Coverage

Paleo Start Date: 1820
Paleo Stop Date: 2001

Location Keywords

• Continent Antarctica South Pole and Siple Dome

Science Keywords

• Paleoclimate Ice Core Records Isotopes Carbon-13 of Methane

Ancillary Keywords

• AGDC
• Antarctic Ice Sheet
• Antarctica
• Carbon
• Firn Air Isotope Measurements
• Firn Air Isotopes
• Firn Isotopes
• Gas Isotopes
• Ice Core
• Ice Core Chemistry
• Ice Core Data
• Methane
• Paleoclimate
• Siple Dome
• Stable Isotopes

ISO Topic Category (View Definitions)

• Climatology/Meteorology/Atmosphere

Platform

• LABORATORY

Instrument

• MASS SPECTROMETERS

Quality

Refer to Sowers et al. (2005) for quality assessment information.

Data Set Progress

COMPLETE

Originating Center

Antarctic Glaciological Data Center

Data Center

NSIDC Antarctic Glaciological Data Center
Data Center URL: http://nsidc.org/agdc/
Data Set ID: NSIDC-0310

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 Format: Microsoft Excel

Distribution Media: FTP
Distribution Format: Microsoft Word

Distribution Media: FTP
Distribution Size: 37.5 KB

Personnel

Todd A. Sowers
Role: INVESTIGATOR
Phone: 814-863-8093
Fax: 814-863-8724
Email: sowers@geosc.psu.edu
Contact Address:
237 Deike Building
City: University Park
Province or State: PA
Postal Code: 16802
Country: USA

NSIDC USER SERVICES
Role: TECHNICAL CONTACT
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

Related URL

VIEW RELATED INFORMATION
Siple Dome Highlights: Stable isotopes

VIEW RELATED INFORMATION
Siple Dome Core Date from Measurement of the d18O of Paleoatmospheric O2

VIEW RELATED INFORMATION
Firn Air Isotope and Temperature Measurements from Siple Dome and South Pole

VIEW RELATED INFORMATION
Firn Air Inert Gas and Oxygen Observations from Siple Dome, 1996, and the South Pole, 2001

Reference

Leckrone, K. J., and J. M. Hayes. 1998. Water-induced errors in continuous flow carbon isotope ratio mass spectrometry. Analytical Chemistry 70, 2737-2744. Miller, J. B., K. A. Mack, R. Dissly, J. W. C. White, E. J. Dlugokencky, and P. Tans. 2002. Development of analytical methods and measurements of 13C/12C in atmospheric CH4 from the NOAA Climate Monitoring and Diagnostics Laboratory Global Air Sampling Network. Journal of Geophysical Research 107, 4178-4193. Rice, A., A. A. Gotoh, H. O. Aijie, and S. C. Tyler. 2001. High-precision continuous-flow measurements of d13C and dD of atmospheric CH4 Analytical Chemistry 73, 4104-4110.

Santrock, J., S. A. Studley, and J. M. Hayes. 1985. Isotopic analyses based on the mass spectrum of carbon dioxide Analytical Chemistry 57, 1444-1448.

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 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: 2007-07-09

DIF Text-Only

Directory Interchange Format (DIF) in plain text

DIF XML

Directory Interchange Format (DIF) in Extensible Markup Language (XML)

FGDC HTML

U.S. Federal Geographic Data Committee (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM)