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Cosmogenic Radionuclides in the Siple Dome A Ice Core
Entry ID: NSIDC-0307

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Abstract: This data set includes a record of cosmogenic radionuclide concentrations in the Siple Dome A ice core collected as part of the West Antarctic ice core program. The investigators measured profiles of both 10Be (half-life = 1.5x106 years) and 36Cl (half-life = 3.0x105 years) in the entire ice core, which spans the time period from the present to about 100,000 years before present. These data are being used for perfecting the ice core chronology, deducing the history of solar activity, deducing the history of variations in the geomagnetic field, and studying the possible role of solar variations on climate.

Data are distributed as a PDF file and are available via FTP.
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Description: Documentation
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Geographic Coverage
Spatial coordinates   
  N: -81.66   S: -81.66   E: -148.81   W: -148.81

Data Set Citation
Dataset Originator/Creator: Nishiizumi, K. and R. C. Finkel.
Dataset Title: Cosmogenic Radionuclides in the Siple Dome A Ice Core
Dataset Series Name: NSIDC-0307
Dataset Release Date: 2007-05-31
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Version: 1
Online Resource:
Location Keywords
Quality These are preliminary data of cosmogenic radionuclides (10Be and 36Cl) in the Siple Dome A ice core. Depths are at variable intervals and are not continuous. Investigators have provided 36Cl/Cl ratios. Calculation of 36Cl concentration (atom/g) requires the Cl concentration in the same sample, which is not available. All 10Be results have more than 20% uncertainty due to accelerator mass spectrometry (AMS) calibration issues and the uncertainty in the volume of melting water; these require large corrections.
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Originating Center
Data Center
NSIDC Antarctic Glaciological Data Center Supplemental Info
Data Center URL:

Data Center Personnel
Phone: 1-303-492-6199
Fax: 1-303-492-2468
Email: nsidc at
Contact Address:
National Snow and Ice Data Center
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
Distribution Media: FTP
Distribution Size: 136 KB
Distribution Format: PDF
Phone: 1-510-643-9361
Fax: 1-510-643-7629
Email: kuni at
Contact Address:
7 Gauss Way
City: Berkeley
Province or State: CA
Postal Code: 94720-7450
Country: USA
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Creation and Review Dates
DIF Creation Date: 2007-05-31
Last DIF Revision Date: 2018-02-09