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 National Science
Foundation Award #9018530 |
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Radar Studies of the Bed of an Active Ice Stream
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| Investigator(s): |
Charles Bentley (PI)
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| Sponsor: |
University of Wisconsin-Madison, WI 53706 6082623822
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| Start Date/Expiration Date |
1991-05-01 to 1994-04-30 (amended 1992-07-28) |
| Awarded Amount to Date: |
$307,763 |
| Abstract: This award supports a ground-based radar sounding program in Antarctica on Ice Stream B with a primary purpose of determining the differential motion between the top of the ice and the base of the ice and the top of the bed. This will be done by measuring the movement, relative to the surface, of diffraction ("fading") patterns associated with irregularities in the ice-bed interface. Differential motion, which can be measured with a resolution of about 1 meter, will be attributable to shear deformation within the ice sheet and sliding on its bed. It is also planned to determine bed topography for drill-hole site selection and strain analyses, monitor drill holes for lateral penetration of water layers, study internal layering, and map near- surface crevasses using a short-pulse, high-resolution radar system. |
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| NSF Org: |
OPP - Office of Polar Programs |
| Award Number: |
9018530 |
| Award Instrument: |
Continuing grant |
| Program Manager: |
Julie Palais
OPP Office of Polar Programs
O/D OFFICE OF THE DIRECTOR
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| NSF Program(s): |
ANTARCTIC GEOLOGY & GEOPHYSICS, ANTARCTIC GLACIOLOGY, ANTARCTIC GEOLOGY & GEOPHYSICS
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| Field Application(s): |
Geological Sciences, Polar Programs-Related |
| Program Element Code(s): |
5112
ANTARCTIC GLACIOLOGY, 5116
, 5112
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