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Millennially Averaged Accumulation Rates for Lake Vostok

Entry ID: NSIDC-0500

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Summary

Abstract: This data set consists of inferred accumulation rates from three radar layers (26, 35 and 41 thousand years old) in the Vostok Subglacial Lake region. Accumulation rates were inferred using Local-Layer Approximation (LLA), which assumes that the strain-rate history of a particle traveling through the ice sheet can be approximated by the vertical strain-rate profile at the current position of the particle, which the researchers assume to be uniform. Parameters include location, in latitude and longitude, polar stereographic coordinates, and local grid X and Y coordinates, along with layer age, in thousands of years (ka), and inferred accumulation rate (cm/a). The data cover a 150 by 350 km area. Data are available via FTP, as a text file (.txt) with columns in comma separated value format.

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

N: -75.7

S: -79.1

E: 80.5

W: 68.4

Data Set Citation

Dataset Originator/Creator: J. MacGregor, K. Matsuoka, M. Studinger, E. Waddington, and D. Winebrenner

Dataset Title: Millennially Averaged Accumulation Rates for the Lake Vostok Region

Dataset Release Date: 2011-08-01

Dataset Release Place: Boulder, Colorado, USA

Dataset Publisher: National Snow and Ice Data Center (NSIDC)

Online Resource: http://nsidc.org/data/nsidc-0500.html

Temporal Coverage

Start Date: 2000-01-01

Stop Date: 2001-12-31

Location Keywords

CONTINENT > ANTARCTICA

GEOGRAPHIC REGION > POLAR

Data Resolution

Latitude Resolution: 1.5 km
Longitude Resolution: 1.5 km

Science Keywords

CRYOSPHERE > GLACIERS/ICE SHEETS > ICE SHEETS

CRYOSPHERE > SNOW/ICE

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Platform

FIELD INVESTIGATION

Instrument

RADAR > Radio Detection and Ranging

Project

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

SOAR > Support Office for Aerogeophysical Research

SOAR-LVS > Support Office for Aerogeophysical Research Lake Vostok Project

Ancillary Keywords

Antarctic Ice Sheet

Ice Penetrating Radar

Data Set Progress

COMPLETE

Originating Center

UTX-AUSTIN/IG

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: 3705 KB

Distribution Format: ASCII text

Personnel

JOSEPH ANDREW MACGREGOR

Role: INVESTIGATOR

Phone: (512) 471-0411

Fax: (512) 471-8844

Email: joemac at ig.utexas.edu

Contact Address:

10100 Burnet Rd, Bldg 196

City: Austin

Province or State: TX

Postal Code: 78758

Country: USA

Publications/References

MacGregor, Joseph A., Kenichi Matsuoka, Michelle R. Koutnik, Edwin D. Waddington, Micheal Studinger and Dale P. Winebrenner. 2009. Millennially Averaged Accumulation Rates for the Vostok Subglacial Lake Region Inferred from Deep Internal Layers, Annals of Glaciology, 50(51) 25-34.

Creation and Review Dates

DIF Creation Date: 2011-08-03

Last DIF Revision Date: 2012-05-14

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