Continued deceleration of Whillans ice stream West Antartica

Ian Joughin; R. A. Bindschadler; M. A. King; D. Voigt; R. B. Alley; S. Anandakrishnan; H. Horgan; L. Peters; P. Winberry; S. B. Das; G. Catania

doi:10.1029/2005GL024319

Continued deceleration of Whillans ice stream West Antartica

Ian Joughin, R. A. Bindschadler, M. A. King, D. Voigt, R. B. Alley, S. Anandakrishnan, H. Horgan, L. Peters, P. Winberry, S. B. Das, G. Catania

Geosciences

Research output: Contribution to journal › Article › peer-review

76 Scopus citations

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.

Original language	English (US)
Article number	L22501
Pages (from-to)	1-4
Number of pages	4
Journal	Geophysical Research Letters
Volume	32
Issue number	22
DOIs	https://doi.org/10.1029/2005GL024319
State	Published - Nov 28 2005

All Science Journal Classification (ASJC) codes

Geophysics
General Earth and Planetary Sciences

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10.1029/2005GL024319

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title = "Continued deceleration of Whillans ice stream West Antartica",

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.",

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T1 - Continued deceleration of Whillans ice stream West Antartica

AU - Joughin, Ian

AU - Bindschadler, R. A.

AU - King, M. A.

AU - Voigt, D.

AU - Alley, R. B.

AU - Anandakrishnan, S.

AU - Horgan, H.

AU - Peters, L.

AU - Winberry, P.

AU - Das, S. B.

AU - Catania, G.

PY - 2005/11/28

Y1 - 2005/11/28

N2 - 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.

AB - 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.

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JO - Geophysical Research Letters

JF - Geophysical Research Letters

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ER -

Continued deceleration of Whillans ice stream West Antartica

Abstract

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