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Warm ocean is eroding West Antarctic Ice Sheet

Shepherd, A and Wingham, D and Rignot, E (2004) Warm ocean is eroding West Antarctic Ice Sheet. Geophysical Research Letters , 31 (23) , Article L23402. 10.1029/2004GL021106.

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Abstract

Satellite radar measurements show that ice shelves in Pine Island Bay have thinned by up to 5.5 m yr^{-1} over the past decade. The pattern of shelf thinning mirrors that of their grounded tributaries-the Pine Island, Thwaites and Smith glaciers- and ocean currents on average 0.5degreesC warmer than freezing appear to be the source. The synchronised imbalance of the inland glaciers is the result of reduced lateral and basal tractions at their termini, and the drawdown of grounded ice shows that Antarctica is more sensitive to changing climates than was previously considered.

Type:Article
Title:Warm ocean is eroding West Antarctic Ice Sheet
Open access status:An open access version is available from UCL Discovery
DOI:10.1029/2004GL021106
Publisher version:http://dx.doi.org/10.1029/2004GL021106
Language:English
Additional information:Copyright 2004 by the American Geophysical Union
Keywords:Pine island glacier, Tidal motion, Shelf, Sea
UCL classification:UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Earth Sciences

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