Continued deceleration of Whillans Ice Stream, West Antarctica
Continued deceleration of Whillans Ice Stream, West Antarctica
Date
2005-11-17
Authors
Joughin, Ian
Bindschadler, R. A.
King, Matt A.
Voigt, Donald E.
Alley, Richard B.
Anandakrishnan, Sridhar
Horgan, H.
Peters, L.
Winberry, J. Paul
Das, Sarah B.
Catania, Ginny
Bindschadler, R. A.
King, Matt A.
Voigt, Donald E.
Alley, Richard B.
Anandakrishnan, Sridhar
Horgan, H.
Peters, L.
Winberry, J. Paul
Das, Sarah B.
Catania, Ginny
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DOI
10.1029/2005GL024319
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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 0.6%/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.
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Author Posting. © American Geophysical Union, 2005. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 32 (2005): L22501, doi:10.1029/2005GL024319.
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Geophysical Research Letters 32 (2005): L22501