HR: 1340h
AN: IN13B-1092    [Abstracts]
TI: Glaciers and Ice Sheets Mapping Orbiter
AU: * Jezek, K
EM: jezek.1@osu.edu
AF: The Ohio State University, 1090 Carmack Road, Columbus, OH 43210 United States
AU: Rodriguez, E
EM: ernesto.rodriguez@jpl.nasa.gov
AF: Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109
AU: Gogineni, P
EM: gogineni@ittc.ku.edu
AF: The University of Kansas, 2335 Irving Hill Road, Lawrence, KS 66045
AU: Freeman, A
EM: Anthony.Freeman@jpl.nasa.gov
AF: Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109
AU: Curlander, J
EM: jcc@vexcel.com
AF: Vexcel Corporation, 1690 38th Street, Boulder, CO 80301 United States
AU: Wu, X
EM: wu@vexcel.com
AF: Vexcel Corporation, 1690 38th Street, Boulder, CO 80301 United States
AU: Allen, C
EM: callen@ittc.ku.edu
AF: The University of Kansas, 2335 Irving Hill Road, Lawrence, KS 66045
AU: Kanagaratnam, P
EM: pannir@ku.edu
AF: The University of Kansas, 2335 Irving Hill Road, Lawrence, KS 66045
AU: Sonntag, J
EM: sonntag@osb1.wff.nasa.gov
AF: EG&G Corporation, Wallops Flight Facility, Wallops Island, VA 23337 United States
AU: Krabill, W
EM: william.b.krabill@nasa.gov
AF: Laboratory for Hydrospheric Processes, Wallops Flight Facility, Wallops Island, VA 23337 United States
AB: 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.
DE: 6969 Remote sensing
DE: 6994 Instruments and techniques (1241)
SC: Earth and Space Science Informatics [IN]
MN: Fall Meeting 2005