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
Description: NSF Award #0538674 Abstract
Geographic Coverage
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
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
ISO Topic Category
Quality Please refer to MacGregor et al. (2009) for details on the quality of this dataset and assumptions used to derive the accumulation rates presented.
Access Constraints N/A
Use Constraints Please refer to MacGregor et al. (2009) when using this dataset.
Ancillary Keywords
Data Set Progress
COMPLETE
Data Center
Glaciology, Near-Surface Geophysics, Earth and Space Sciences, University of Washington Supplemental Info
Data Center URL: http://www.ess.washington.edu/Surface/Glaciology/

Data Center Personnel
Name: JOSEPH ANDREW MACGREGOR
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
Distribution
Distribution Media: online
Distribution Format: ASCII text
Fees: none
Personnel
Role: INVESTIGATOR
Email: matsuoka at npolar.no
Email: matsuoka at ess.washington.edu
Contact Address:
University of Washington
Department of Earth and Space Sciences
City: Seattle
Province or State: WA
Postal Code: 98105
Country: USA
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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, International Glaciological Society
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2011-07-05
Last DIF Revision Date: 2011-08-23
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