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Alkanes in Firn Air Samples, Antarctica and Greenland

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Entry ID

NSIDC-0504

Summary

This data set contains ethane, propane, and n-butane measurements in firn air from the South Pole and the West Antarctic Ice Sheet (WAIS) Divide in Antarctica, and from Summit, Greenland. The WAIS Divide and South Pole samples were collected in December to January of of 2005/06 and 2008/09, respectively. The Summit firn was sampled in the summer of 2006. Analyses were conducted on a gas chromatography - mass spectrometry (GC-MS) system at the University of California, Irvine. 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.

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

Geographic Coverage

 

Spatial Coordinates:
N: 72.5833°     S: 72.5833°     E: -38.3833°     W: -38.3833°    
N: -90°     S: -90°     E: 0°     W: 0°    
N: -79.47°     S: -79.47°     E: 112.09°     W: 112.09°    

Data Set Citation

Dataset Creator: Aydin, M. and E. Saltzman
Dataset Title: Alkanes in Firn Air Samples, Antarctica and Greenland
Dataset Release Date: 2011-11-30
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Online Resource: http://nsidc.org/data/nsidc-0504.html
Dataset DOI: http://dx.doi.org/10.7265/N5X9287C

Temporal Coverage

Start Date: 2008-12-01
Stop Date: 2009-01-31

Start Date: 2006-06-01
Stop Date: 2006-09-01

Start Date: 2005-12-01
Stop Date: 2006-01-31

Location Keywords

  • CONTINENT ANTARCTICA
  • CONTINENT NORTH AMERICA GREENLAND
  • GEOGRAPHIC REGION POLAR

Science Keywords

  • Atmosphere Atmospheric Chemistry Carbon and Hydrocarbon Compounds
  • Cryosphere Glaciers/Ice Sheets Firn
  • Terrestrial Hydrosphere Glaciers/Ice Sheets Firn
  • Terrestrial Hydrosphere Water Quality/Water Chemistry Hydrocarbons

Ancillary Keywords

  • chromatography
  • Firn
  • firn air chemistry
  • firn air samples
  • GAS CHROMATOGRAPHY
  • Mass Spectrometer
  • Mass Spectrometry
  • Polar Firn Air

ISO Topic Category (View Definitions)

  • Climatology/Meteorology/Atmosphere

Platform

  • FIELD INVESTIGATION
  • LABORATORY

Instrument

  • GAS CHROMATOGRAPHS
  • MASS SPECTROMETERS

Data Set Progress

complete

Data Center

National Snow and Ice Data Center
Data Center URL: http://nsidc.org

Data Center Personnel

Name: NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:

  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado

City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA

Antarctic Glaciological Data Center
Data Center URL: http://nsidc.org/agdc/

Data Center Personnel

Name: AGDC User Services
Phone: 1 303 492-6199 x
Fax: 1 303 492-2468 x
Email: nsidc@nsidc.org
Contact Address:

  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado

City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA

Distribution

Distribution Media: FTP
Distribution Size: 19 KB
Distribution Format: Microsoft Excel

Personnel

Murat Aydin
Role: INVESTIGATOR
Phone: 1 949 824-6174 x5540
Email: maydin@uci.edu
Contact Address:

  • University of California, Irvine
  • Earth System Science
  • University of California, Irvine
  • Earth System Science

City: Irvine
Province or State: C
Postal Code: 92697-3100
Country: USA

Eric Saltzman
Role: INVESTIGATOR
Phone: 1 949 824-3936
Fax: 1 949 824-3874
Email: esaltzma@uci.edu
Contact Address:

  • University of California, Irvine
  • Department of Earth System Science
  • Department of Earth System Science
  • University of California, Irvine

City: Irvine
Province or State: CA
Postal Code: 92697-3100
Country: USA

NSIDC User Services
Role: TECHNICAL CONTACT
Phone: 1 303 492-6199 x
Fax: 1 303 492-2468 x
Email: nsidc@nsidc.org
Contact Address:

  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado

City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA

Reference

Aydin, M., K. R. Verhulst, E. S. Saltzman, M. O. Battle, S. A. Montzka, D. R. Blake, Q. Tang, and M. J. Prather. 2011. Recent decreases in fossil-fuel emissions of ethane and methane derived from firn air, Nature, 476, 198-201, doi:10.1038/nature10352.

Aydin, M., M. B. Williams, and E. S. Saltzman. 2007. Feasibility of reconstructing paleoatmospheric records of selected alkanes, methyl halides, and sulfur gases from Greenland ice cores. J. Geophys. Res., 112, D07312, doi:10.1029/2006JD008027.

Battle, M. et al. 1996. Atmospheric Gas Concentrations over the Past Century Measured in Air from Firn at the South Pole. Nature 383. 231-235.

Metadata Name and Version

Metadata Name: CEOS IDN DIF
Metadata Version: 9.7

Creation and Review Dates

DIF Creation Date: 2011-11-30
Last DIF Revision Date: 2013-03-20

Metadata Views

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Directory Interchange Format (DIF) in plain text

DIF XML

Directory Interchange Format (DIF) in Extensible Markup Language (XML)

FGDC HTML

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

ISO HTML

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

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