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Continued deceleration of Whillans ice stream, West Antarctica

Citation

Joughin, I and Bindschadler, RA and King, MA and Voigt, D and Alley, RB and Anandakrishnan, S and Horgan, H and Peters, L and Winberry, P and Das, SB and Catania, G, Continued deceleration of Whillans ice stream, West Antarctica, Geophysical Research Letters, 32, (22) Article L22501. ISSN 0094-8276 (2005) [Refereed Article]

Copyright Statement

Copyright 2005 The American Geophysical Union

DOI: doi:10.1029/2005GL024319

Abstract

Earlier observations indicated that Whillans Ice Stream slowed from 1973 to 1997. We collected new GPS observations of the ice stream's speed in 2003 and 2004. These data show that the ice stream is continuing to decelerate at rates of about 0.61%/yr2, with faster rates near the grounding line. Our data also indicate that the deceleration extends over the full width of the ice plain. Extrapolation of the deceleration trend suggests the ice stream could stagnate sometime between the middle of the 21st and 22nd Centuries.

Item Details

Item Type:Refereed Article
Keywords:deceleration, estimation, global positioning system, ice, synthetic aperture radar, velocity, ice stream, stick-slip motion, glacial geology, ice stream, velocity, Antarctica
Research Division:Earth Sciences
Research Group:Physical Geography and Environmental Geoscience
Research Field:Physical Geography and Environmental Geoscience not elsewhere classified
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Earth Sciences
Author:King, MA (Professor Matt King)
Author:Peters, L (Dr Leo Peters)
ID Code:81813
Year Published:2005
Web of Science® Times Cited:46
Deposited By:Geography and Environmental Studies
Deposited On:2013-01-08
Last Modified:2015-11-04
Downloads:0

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