Antarctic Ice Cores: Methyl Chloride and Methyl Bromide

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Entry ID

NSIDC-0313

Summary

This data set is an analysis of methyl chloride (CH3Cl) and methyl bromide (CH3Br) in Antarctic ice core samples. Investigators reported mixing ratios of methyl chloride gas extracted from samples taken from the South Pole Remote Earth Science and Seismological Observatory (SPRESSO) core, drilled as part of the International Trans Antarctic Science Expedition (ITASE). This data covers an age range of 2159 - 140 years before present (Y.B.P.) where the year 2000 was used as present. Investigators analyzed trace gases in ice core samples from Siple Dome, West Antarctica (dry-drilled C core and deep, fluid-drilled A core) and from South Pole, Antarctica (300 m dry drilled SPRESSO core). Data are available in Microsoft Excel format and are available via FTP.

Geographic Coverage

 

Spatial Coordinates:
N: -89.93°     S: -89.93°     E: -144.39°     W: -144.39°    

Data Set Citation

Dataset Creator: Saltzman, Eric
Dataset Title: Antarctic Ice Cores: Methyl Chloride and Methyl Bromide
Dataset Release Date: 2007-11-10
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Online Resource: http://nsidc.org/data/nsidc-0313.html
Dataset DOI: http://dx.doi.org/10.7265/N5DN430Q

Paleo Temporal Coverage

Paleo Start Date: 2159 ybp
Paleo Stop Date: 140 ybp

Location Keywords

  • CONTINENT ANTARCTICA

Science Keywords

  • Atmosphere Air Quality Sulfur Oxides Carbonyl Sulfide
  • Atmosphere Atmospheric Chemistry Halocarbons and Halogens Halocarbons Methyl Chloride, Methyl Bromide
  • Atmosphere Atmospheric Chemistry Sulfur Compounds Carbonyl Sulfide
  • Cryosphere Glaciers/Ice Sheets
  • Cryosphere Glaciers/Ice Sheets Ice Sheets
  • Cryosphere Snow/Ice Snow/Ice Temperature
  • Paleoclimate Ice Core Records
  • Terrestrial Hydrosphere Snow/Ice Snow/Ice Temperature

Ancillary Keywords

  • Antarctica
  • Atmospheric Chemistry
  • Atmospheric Gases
  • Ice Core
  • Ice Core Chemistry
  • Ice Core Data
  • Ice Core Gas Records
  • Ice Cores
  • Mass Spectrometer
  • NSIDC

ISO Topic Category (View Definitions)

  • Climatology/Meteorology/Atmosphere

Instrument

  • CORING DEVICES
  • 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: 70 KB
Distribution Format: Microsoft Excel

Personnel

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

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

Margaret Williams
Role: INVESTIGATOR
Contact Address:

  • University of California, Irvine
  • Department of Earth System Science
  • 3325 Croul Hall
  • Department of Earth System Science
  • University of California, Irvine

City: Irvine
Province or State: California
Postal Code: 92697
Country: USA

Cheryl Tatum
Role: INVESTIGATOR
Contact Address:

  • 3325 Croul Hall

City: Irvine
Province or State: California
Postal Code: 92697
Country: USA

NSIDC User Services
Role: INVESTIGATOR
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

M.B. Williams, M. Aydin, C. Tatum and E.S. Saltzman. A 2000 Year Atmospheric History of Methyl Chloride from a South Pole Ice Core: Evidence for Climate Controlled Variability, Geophysical Research Letters 34,doi:10.1029/2006GL029142

Aydin, M., E. S. Saltzman, W. J. De Bruyn, S. A. Montzka, J. H. Butler, and M. Battle. 2004. Atmospheric variability of methyl chloride over the last 300 years from an Antarctic ice core and firn air. Geophysical Research Letters. Vol. 31. L02109, doi: 10.1029/2003GL018750.

Saltzman, E. S., M. Aydin, W. J. De Bruyn, D. B. King, and S. A. Yvon-Lewis. 2004. Methyl bromide in preindustrial air: measurements from an Antarctic ice core. Journal of Geophysical Research. Vol. 109. No. D5, D0530, doi: 10.1029/2003JD004157.

Aydin, M., W. J. De Bruyn, and E. S. Saltzman. 2002. Preindustrial atmospheric carbonyl sulfide (OCS) from an Antarctic ice core. Geophysical Research Letters. Vol. 29. 9. 73-1 – 73-4.

M. Battle, M. Bender, T. Sowers, P.P. Tans, J.H. Butler, J.W. Elkins, J.T. Ellis, T. Conway, N. Zhang, P. Lang and A.D. Clarke. 1996 Atmospheric gas concentrations over the past centruy measured in air from firn at the South Pole. Nature, 383:231-235

Butler, J.H., M. Battle, M. Bender, S.A. Montzka, A.D. Clarke, E.S. Saltzman, C. Sucher, J. Severinghaus, and J.W. Elkins. 1999. A twentieth century record of atmospheric halocarbons in polar firn air. Nature 399:749-765.

Metadata Name and Version

Metadata Name: CEOS IDN DIF
Metadata Version: 9.7

Creation and Review Dates

DIF Creation Date: 2007-11-10
Last DIF Revision Date: 2013-03-18

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