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Antarctic Ice Cores: Methyl Chloride and Methyl Bromide

Entry ID: NSIDC-0313

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Summary

Abstract: 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

(Click for Interactive Map)

Spatial coordinates

N: -89.93

S: -89.93

E: -144.39

W: -144.39

Data Set Citation

Dataset Originator/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: National Snow and Ice Data Center (NSIDC)

Data Presentation Form: Digital media

Online Resource: http://nsidc.org/data/nsidc-0313.html

Location Keywords

CONTINENT > ANTARCTICA

GEOGRAPHIC REGION > POLAR

Science Keywords

ATMOSPHERE > AIR QUALITY > SULFUR OXIDES > CARBONYL SULFIDE

CRYOSPHERE > GLACIERS/ICE SHEETS > ICE SHEETS

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Instrument

CORING DEVICES

GAS CHROMATOGRAPHS

MASS SPECTROMETERS

Ancillary Keywords

Antarctica

Atmospheric Chemistry

Data Set Progress

COMPLETE

Originating Center

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 at 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

NSIDC Antarctic Glaciological Data Center

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

Data Center Personnel
Name: NSIDC AGDC USER SERVICES Phone: +1 (303) 492-6199 Fax: +1 (303) 492-2468 Email: nsidc at 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: (949) 824-3936

Fax: (949) 824-3874

Email: esaltzma at uci.edu

Contact Address:

Department of Earth System Science

University of California, Irvine

City: Irvine

Province or State: CA

Postal Code: 92697-3100

Country: USA

Publications/References

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 ...

Creation and Review Dates

DIF Creation Date: 2007-10-20

Last DIF Revision Date: 2009-01-08

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