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Ice-flow properties at Dome Summit South, Law Dome, East Antarctica

Citation

Wang, W and Warner, RC and Budd, WF, Ice-flow properties at Dome Summit South, Law Dome, East Antarctica, Annals of Glaciology, 35 pp. 567-573. ISSN 0260-3055 (2002) [Refereed Article]

DOI: doi:10.3189/172756402781816924

Abstract

Ice-flow properties within a polar ice sheet are examined using the comprehensive data gathered from ice-core drilling by Australian National Antarctic Research Expeditions (ANARE) at Dome Summit South (DSS), on Law Dome, East Antarctica. Using the shear strain rates derived from borehole inclination measurements we demonstrate the need to modify the ice-flow relations to treat enhanced shear deformation deep within the ice sheet. We show that the relation between enhanced flow and the measured crystallographic properties is generally in accord with expectations, at least in the upper parts of the ice sheet, but it becomes clear that nearer to the bedrock the situation is more complicated. We also compare the observed shear strain-rate profile with results from a model that describes flow enhancement as a function of the applied stresses.

Item Details

Item Type:Refereed Article
Research Division:Earth Sciences
Research Group:Physical Geography and Environmental Geoscience
Research Field:Glaciology
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Earth Sciences
Author:Budd, WF (Professor William Budd)
ID Code:26100
Year Published:2002
Web of Science® Times Cited:9
Deposited By:CRC-Antarctic and Southern Ocean Environm
Deposited On:2002-08-01
Last Modified:2011-08-02
Downloads:0

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