GISP2 (D Core) Methane Concentration Data

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This ice core data is archived at the World Data Center for Paleoclimatology and is available through the Ice Core Data Gateway. The data includes methane data from the Greenland Ice Sheet Project 2 (GISP2). GISP2 is an ice core project that drilled through the Greenland ice sheet and 1.55 meters into bedrock. The ice core is 3053.44 meters in depth, the deepest ice core recovered in the world at the time. The ice core was completed in 1993 after five years of drilling.

Methane concentrations were determined by GC-FID using standards calibrated by NOAA CMDL. The gas age time scales and analytical techniques are described in further detail in the publication.

Data Set Citation

Dataset Creator: Brook, E.J.
Dataset Title: GISP2 (D Core) Methane Concentration Data
Dataset Release Date: 2008-12-16
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: Paleo: NOAA Paleoclimatology Program
Online Resource:

Science Keywords

  • Paleoclimate Ice Core Records
  • Paleoclimate Ice Core Records Methane

ISO Topic Category (View Definitions)

  • Climatology/Meteorology/Atmosphere


  • GISP2 Greenland Ice Sheet Project II

Data Center

World Data Center-A for Paleoclimatology
Data Center URL:

Data Center Personnel

Name: WDC-A/Paleoclimatology WDC-A/Paleoclimatology
Phone: 1 303 497-6160
Fax: 1 303 497-6513
Contact Address:

  • World Data Center-A for Paleoclimatology
  • NOAA/NGDC Code E/GCx3
  • 325 Broadway

City: Boulder
Province or State: CO
Postal Code: 80303


Distribution Media: FTP
Distribution Format: ASCII Text (.txt)


Edward J Brook
Phone: 1 541 737-8197
Contact Address:

  • Oregon State University
  • Department of Geosciences
  • 104 Wilkinson Hall

City: Corvallis
Province or State: OR
Postal Code: 97331-5506
Country: USA

Related URL

NOAA NCDC World Data Center for Paleoclimatology


Methane data from Brook et al., On the origin and timing of rapid changes in atmospheric methane during the last glacial period,Global Biogeochemical Cycles, 14(2), 559-572.

The GISP2 gas age time scale is from Brook et al., Rapid changes in atmospheric methane during the past 110,000 years, Science, 273, 1087-1091.

The Taylor Dome gas age time scale was derived by correlating the GISP2 and Taylor Dome methane records.

Metadata Name and Version

Metadata Name: CEOS IDN DIF
Metadata Version: 9.7

Creation and Review Dates

DIF Creation Date: 2008-12-16
Last DIF Revision Date: 2008-12-16

Metadata Views

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Directory Interchange Format (DIF) in plain text


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


International Organization for Standardization (ISO) 19115:2003 Geographic Information Metadata

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