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

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...

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Bibliographic Details
Published in:Science
Main Authors: Bindschadler, Robert, Vornberger, Patricia
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 1998
Subjects:
Multidisciplinary
Antarctic
Crary Ice Rise
Ross Ice Shelf
West Antarctic Ice Sheet
Antarc*
Ice Sheet
Ice Shelf
Ice Stream B
Online Access:http://dx.doi.org/10.1126/science.279.5351.689
https://www.science.org/doi/pdf/10.1126/science.279.5351.689
Description
Summary: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.

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