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GISP2 (B and D Core) Methane Concentrations Cite as Brook, E. J. (2003) "GISP2 (B and D Core) Methane Concentrations" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/. AMD - DIF Record(s) NSIDC-0125_1 Abstract The data include methane data from the Greenland Ice Sheet Project 2 (GISP2) B & D Cores. Gas ages were calculated according to the methods described in Brook et al. 1996, and are subject to change. Ice ages were calculated by by linear interpolation from the Meese et al. timescale. Creator(s): Brook, Edward J. Date Created: 2003-05-14 Repository: USAP-DC (current) - NSIDC (original) License: Creative Commons Attribution-NonCommercial v4.0 Generic [CC BY-NC 4.0] Spatial Extent(s) West: -38.466667, East: -38.466667, South: 72.5833333, North: 72.5833333 Temporal Extent(s) Start: 1996-01-01 - End: 1999-12-31 Award(s) NSF 0512971 Version: 1 Related Project(s) High Resolution Records of Atmospheric Methane in Ice Cores and Implications for Late Quaternary Climate Change References Brook, E.J., T. Sowers, and J. Orchardo. 1996. Rapid variations in, atmospheric methane concentration during the past 110,000 years. Science, 273:1087-1091. (doi:10.1126/science.273.5278.1087 ) Keywords Arctic Chemistry:fluid Chemistry:ice Geochemistry GISP2 Glaciers/ice Sheet Glaciology Greenland Ice Core Records Methane Paleoclimate