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Radar studies of the West Antarctic ice streamsA collaboration has carried out measurements of ice thickness at the mouth of Ice Streams D and E, West Antarctica, using a surface-based impulse radar. These studies were undertaken as a part of the continuing effort to understand the state of the West Antarctic Ice Sheet and its response to climate change. Thickness measurements will be used in the mass balance calculation currently in progress and to better understand features in the surface topography seen at low-angle sun illumination in the satellite imagery. Results show that the discharge areas of Ice Streams D and E are thickening by approximately 1 meter per year, and thus that these ice streams are likely losing mass. Aperiodic wavelike features in the surface topography are described, which pose interesting questions about migration of the grounding line and ice-stream dynamics.
Document ID
19930022702
Document Type
Conference Paper
Authors
Jacobel, Robert W.
(Saint Olaf Coll. Northfield, MN, United States)
Date Acquired
September 6, 2013
Publication Date
July 1, 1993
Publication Information
Publication: NASA. Goddard Space Flight Center, The First Annual West Antarctic Ice Sheet (WAIS) Science Workshop
Subject Category
Geophysics
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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