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Data Set ID:

Methane Concentration and Chronology from the WAIS Divide Ice Core (WDC05A), Version 1

This data set provides a high-precision and high-resolution record of atmospheric methane from the West Antarctic Ice Sheet (WAIS) Divide ice core WDC05A, spanning the years 1000 to 1800 C.E. The data include methane (CH4) concentration measurements and ice age chronology. Methane concentration data include mean sample depth, gas age, mean concentration, and concentrations from individual measurements, at a temporal resolution of approximately nine years. Ice chronology data include depth and ice age.

Data are available via FTP, in Microsoft Excel (.xlsx) format.

Geographic Coverage

Spatial Coverage:
  • N: -79.47, S: -79.47, E: 112.09, W: 112.09

Spatial Resolution: Not Specified
Temporal Coverage: Not specified
Temporal Resolution: 108 month
  • Ice Core Records > Ice Core Air Bubbles
  • Ice Core Records
  • Ice Core Records > Methane
Data Format(s):
  • Microsoft Excel
  • PDF
Version: V1
Data Contributor(s): Logan Mitchell, Edward Brook, Todd Sowers, Joseph McConnell, Kendrick Taylor

Data Citation

As a condition of using these data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.

Mitchell, L. E., E. J. Brook, T. A. Sowers, J. McConnell, and K. C. Taylor. 2011. Methane Concentration and Chronology from the WAIS Divide Ice Core (WDC05A), Version 1. [Indicate subset used]. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. doi: [Date Accessed].
Questions? Please contact:

NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Contact Address:
National Snow and Ice Data Center
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA