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Ethane, propane, and n-butane firn-air data
Entry ID: Aydin_0739598

Abstract: The data file contains ethane, propane, and n-butane measurements in firn air from two Antarctic sites (South Pole and WAIS-D) and from Summit, Greenland. The WAIS-D and South Pole samples were collected in Dec-Jan of 05/06 and 08/09, respectively. The Summit firn was sampled in the summer of 2006. All analyses were conducted on a GC-MS system at University of California, Irvine (see Aydin et al., JGR, 2007 for details). All measurements and the associated uncertainties are reported as dry-air molar mixing ratios in part per trillion (ppt). The reported measurements for each sampling depth represent a mean of multiple measurements on more than one flask in most cases. We report 2 s.e. of the mean as the uncertainty. Ethane data were published by Aydin et al. (Nature, 2011).

Purpose: The data can be used to study changes in ethane, propane, and n-butane levels in the polar atmosphere during the 20th century but requires a separate firn-air modeling effort for each site. The mean age of the firn air at any given depth varies from site to site, and data from similar depths are necessarily contemporaneous.
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Description: NSF Award #0739598 Abstract
Data Set Citation
Dataset Originator/Creator: Murat Aydin
Dataset Title: Ethane, propane, and n-butane measurements in firn-air
Data Presentation Form: Excel file
Other Citation Details: Aydin et al., Nature 476, 198-201, 2011
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National Snow and Ice Data Center Supplemental Info
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Distribution Size: 20 KB
Distribution Format: Microsoft Excel file
Phone: (949) 824-6174, 5540
Email: maydin at
Contact Address:
University of California, Irvine
Earth System Science
City: Irvine
Province or State: CA
Postal Code: 92697-3100
Country: USA
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Creation and Review Dates
DIF Creation Date: 2011-08-18
Last DIF Revision Date: 2017-08-23