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	               gmd:title:  Methane Concentrations from the WAIS Divide Ice Core (WDC06A), 60 to 11,300 ybp
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	                     gmd:date:  2012
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	                  gmd:Date:  2012-04-19
	               gmd:identifier:  NSIDC-0509
	               gmd:identifier:  http://dx.doi.org/10.7265/N5J1013R
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	         gmd:Abstract:  
	
	            This data set contains a high-resolution history of atmospheric methane (CH4) 
	            concentrations in parts per billion (ppb) from approximately 60 to 11,300 
	            years before present (ybp), obtained in 2010 from the West Antarctic Ice Sheet 
	            (WAIS) Divide Ice Core WDC06A. Gas age is derived from the WDC06A-5 ice age 
	            scale.

Data are available via FTP as a Microsoft Excel file (.xlsx).
	         gmd:Purpose:  Scientific Research
	         gmd:Credit:  Todd Sowers. 2012. Methane Concentrations from the WAIS Divide Ice Core (WDC06A), 60 to 11,300 ybp. [indicate subset used]. Boulder, Colorado USA: National Snow and Ice Data Center. http://dx.doi.org/10.7265/N5J1013R. 
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