Statistics – Applications
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufmin13b1092j&link_type=abstract
American Geophysical Union, Fall Meeting 2005, abstract #IN13B-1092
Statistics
Applications
6969 Remote Sensing, 6994 Instruments And Techniques (1241)
Scientific paper
We describe a concept for a spaceborne radar system designed to measure the surface and basal topography of terrestrial ice sheets and to determine the physical properties of the glacier bed. Our primary objective is to develop this new technology for obtaining spaceborne estimates of the mass of the polar ice sheets with an ultimate goal of providing essential information to modelers estimating the mass balance of the polar ice sheets and estimating the response of ice sheets to changing climate. Our technology concept employs VHF and P-band interferometric radars using a novel clutter rejection technique for measuring the surface and bottom topographies of polar ice sheets. Our approach will enable us to reduce signal contamination from surface clutter, measure the topography of the glacier bed, and paint a picture of variations in bed characteristics. The technology will also have applications for planetary exploration including studies of the Martian ice caps and the icy moons of the outer solar system. We have recently shown that it is possible to image a small portion of the base of the polar ice sheets using a SAR approach. Through the concept developed here, we believe that, for the first time, we can image the base and map the 3-dimenional basal topography beneath an ice sheet at up to 5 km depth In this paper, we outline our theoretical concept. We go on to present simulations of spaceborne data and the inversion scheme to retrieve ice thickness data.
Allen Christine
Curlander John
Freeman Anthony
Gogineni Prasad
Jezek Ken
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