[Parameters: Topic='TERRESTRIAL HYDROSPHERE', Term='GLACIERS/ICE SHEETS']
Millennially averaged accumulation rates for the Lake Vostok region inferred from deep internal layers
Entry ID: Vostok_accum

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Summary
Abstract: The depths of radar-detected internal layers can be used to infer the spatial variability of accumulation rates. Here we infer accumulation rates from three radar layers (26, 35 and 41ka old) in the Vostok Subglacial Lake region using the local-layer approximation (LLA). The LLA assumes that the strain-rate history of a particle traveling through the ice sheet can be approximated by the vertical ... View entire text

Purpose: Accumulation rates and their spatio-temporal variability are important boundary conditions for ice-flow models.
Related URL
Link: VIEW RELATED INFORMATION
Description: NSF Award #0538674 Abstract
Geographic Coverage
(Click for Interactive Map)
Spatial coordinates   
  N: -75.67   S: -79.07   E: 80.54   W: 68.41
Min Altitude: 3335 M Max Altitude: 3625 M
Min Depth: 0 Max Depth: 0

Data Set Citation
Dataset Originator/Creator: Joseph A. MacGregor
Dataset Title: Millennially averaged accumulation rates for the Lake Vostok region
Paleo Temporal Coverage
Location Keywords
Data Resolution
Latitude Resolution: 1.5 km
Longitude Resolution: 1.5 km
Horizontal Resolution Range: 1 km - < 10 km or approximately .01 degree - < .09 degree
Vertical Resolution: N/A
Temporal Resolution: 26-41 ka
Science Keywords
ISO Topic Category
Access Constraints There are no restrictions to accessing the data or the abstract
on-line. The full article is available on-line to GSA members only.
Use Constraints Please cite data source using the Data Set Citation information
given above.
Ancillary Keywords
Data Set Progress
COMPLETE
Originating Center
Data Center
Geological Society of America Supplemental Info
Data Center URL: http://www.geosociety.org/

Data Center Personnel
Name: GSA DIRECTOR ELECTRONIC PUBLICATIONS
Phone: (303) 447-2020
Fax: (303) 357-1070
Email: jolsen at geosociety.org
Contact Address:
P.O. Box 9140
City: Boulder
Province or State: CO
Postal Code: 80301-9140
Country: USA
Distribution
Distribution Media: Online (FTP)
Distribution Size: 56 Kb
Distribution Format: PDF
Fees: None
Personnel
GENE R. MAJOR
Role: DIF AUTHOR
Email: gsfc-gcmduso at mail.nasa.gov
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Publications/References
Ilani, S. et al., 2001, New K-Ar ages of basalts from the Harrat
Ash Shaam volcanic field in Jordan: Implications for the span and
duration of the upper-mantle upwelling beneath the western Arabian
plate: Geology, v. 29, No. 2, p. 171-174.
Creation and Review Dates
Last DIF Revision Date: 2005-01-24
Future DIF Review Date: 2003-01-08

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