Journal article
ESA'S POLarimetric Airborne Radar Ice Sounder (POLARIS): design and first results
Microwaves and Remote Sensing, National Space Institute, Technical University of Denmark1
National Space Institute, Technical University of Denmark2
Department of Electrical Engineering, Technical University of Denmark3
Electromagnetic Systems, Department of Electrical Engineering, Technical University of Denmark4
The Technical University of Denmark has developed and tested a P-band ice sounding radar for European Space Agency (ESA). With the recent by the International Telecommunication Union (ITU) allocation of a radar band at 435 MHz, increased interest in space-based sounding of the Earth s ice caps has been encountered.
ESA s POLarimetric Airborne Radar Ice Sounder (POLARIS) is intended to provide a better understanding of P-band scattering and propagation through ice sheets and to verify novel surface clutter suppression techniques in preparation for a potential space-based ice sounding mission. POLARIS is a nadir-looking, fully polarimetric radar featuring aperture synthesis, a multi-aperture antenna for surface clutter suppression and a large dynamic range based on a shallow/deep sounding approach.
The system is installed in a De Haviland DHC-6 Twin Otter aircraft, and in May 2008, a proof-of-concept campaign was conducted in Greenland. This study outlines the design and implementation of the system, and based on first results it is concluded that in the central dry snow zone of Greenland, POLARIS can resolve shallow and deep internal ice layers, penetrate the thickest ice encountered and detect the bedrock.
Language: | English |
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Publisher: | IET |
Year: | 2010 |
Pages: | 488-496 |
ISSN: | 17518792 and 17518784 |
Types: | Journal article |
DOI: | 10.1049/iet-rsn.2009.0035 |
ORCIDs: | Dall, Jørgen , Kristensen, Steen Savstrup , Kusk, Anders , Balling, Jan E. , Skou, Niels and Søbjærg, Sten Schmidl |