Cosmogenic Radionuclides in the Siple Dome A Ice Core

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Entry ID

NSIDC-0307

Summary

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.

Data Set Citation

Dataset Creator: Kunihiko Nishiizumi
Dataset Title: Cosmogenic Radionuclides in the Siple Dome A Ice Core
Dataset Release Date: 2007-05-31
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-0307.html

Paleo Temporal Coverage

Paleo Start Date: 100 kyBP
Paleo Stop Date: 1997

Location Keywords

• Continent Antarctica Siple Dome

Science Keywords

• Cryosphere Snow/Ice Snow/Ice Chemistry Cosmogenic radionuclides
• Paleoclimate Ice Core Records Isotopes Beryllium-10
• Paleoclimate Ice Core Records Isotopes Chlorine-36
• Terrestrial Hydrosphere Glaciers/Ice Sheets Ice Sheets Cosmogenic radionuclides
• Terrestrial Hydrosphere Snow/Ice Snow/Ice Chemistry

Ancillary Keywords

• AGDC
• Antarctica
• Beryllium-10
• Chlorine-36
• Cosmogenic nuclide
• Ice Core
• Ice Core Chemistry
• OPP-0126343
• Siple Dome
• WAIS
• West Antarctica

ISO Topic Category (View Definitions)

• Climatology/Meteorology/Atmosphere

Platform

• GROUND STATIONS

Instrument

• AMS ACCELERATOR MASS SPECTROMETERS
• ION CHROMATOGRAPHS

Project

• NSF/OPP Office of Polar Programs, National Science Foundation

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.

Data Set Progress

COMPLETE

Originating Center

NSIDC_AGDC

Data Center

NSIDC Antarctic Glaciological Data Center
Data Center URL: http://nsidc.org/agdc/
Data Set ID: NSIDC-0307

Data Center Personnel

Name: NSIDC AGDC 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

Space Sciences Laboratory, University of California, Berkeley
Data Center URL: http://www.ssl.berkeley.edu/
Data Set ID: NSIDC-0307

Data Center Personnel

Name: K. NISHIIZUMI
Phone: 510-643-9361
Fax: 510-643-7629
Email: kuni@ssl.berkeley.edu
Contact Address:
7 Gauss Way
City: Berkeley
Province or State: CA
Postal Code: 94720-7450
Country: USA

Distribution

Distribution Media: FTP
Distribution Size: 136 KB
Distribution Format: PDF
Fees: None

Personnel

K. NISHIIZUMI
Role: INVESTIGATOR
Phone: 510-643-9361
Fax: 510-643-7629
Email: kuni@ssl.berkeley.edu
Contact Address:
7 Gauss Way
City: Berkeley
Province or State: CA
Postal Code: 94720-7450
Country: USA

R. C. FINKEL
Role: INVESTIGATOR
Phone: (925) 422-2044
Fax: (925) 422-0208
Email: finkel1@llnl.gov
Contact Address:
LLNL, L-219
City: Livermore
Province or State: CA
Postal Code: 64550
Country: USA

NSIDC USER SERVICES
Role: TECHNICAL CONTACT
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

Related URL

VIEW RELATED INFORMATION
Siple Dome Highlights: Stable Isotopes

VIEW RELATED INFORMATION
Firn Air Isotope and Temperature Measurements from Siple Dome and South Pole

Metadata Name and Version

Metadata Name: CEOS IDN DIF
Metadata Version: 9.7

Creation and Review Dates

DIF Creation Date: 2007-05-31

DIF Text-Only

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)