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Science 30 January 1998:
Vol. 279. no. 5351, pp. 689 - 692
DOI: 10.1126/science.279.5351.689
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Reports

Changes in the West Antarctic Ice Sheet Since 1963 from Declassified Satellite Photography

Robert Bindschadler, * Patricia Vornberger

Comparison of declassified satellite photography taken in 1963 with more recent satellite imagery reveals that large changes have occurred in the region where an active ice stream enters the Ross Ice Shelf. Ice stream B has widened by 4 kilometers, at a rate much faster than suggested by models, and has decreased in speed by 50 percent. The ice ridge between ice streams B and C has eroded 14 kilometers. These changes, along with changes in the crevassing around Crary Ice Rise, imply that this region's velocity field shifted during this century.

R. Bindschadler, Code 971, NASA-Goddard Space Flight Center, Greenbelt, MD 20771, USA.
P. Vornberger, General Sciences Corporation, 6100 Chevy Chase Drive, Laurel, MD 20727, USA.
*   To whom correspondence should be addressed.

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Holocene Deglaciation of Marie Byrd Land, West Antarctica.
J. O. Stone, G. A. Balco, D. E. Sugden, M. W. Caffee, L. C. Sass III, S. G. Cowdery, and C. Siddoway (2003)
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Past and Future Grounding-Line Retreat of the West Antarctic Ice Sheet.
H. Conway, B. L. Hall, G. H. Denton, A. M. Gades, and E. D. Waddington (1999)
Science 286, 280-283
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Tributaries of West Antarctic Ice Streams Revealed by RADARSAT Interferometry.
I. Joughin, L. Gray, R. Bindschadler, S. Price, D. Morse, C. Hulbe, K. Mattar, and C. Werner (1999)
Science 286, 283-286
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Glaciers.
P. G. Knight (1998)
Progress in Physical Geography 22, 407-411
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Pleistocene Collapse of the West Antarctic Ice Sheet.
R. P. Scherer, A. Aldahan, S. Tulaczyk, G. Possnert, H. Engelhardt, and B. Kamb (1998)
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