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Proceedings Paper

Performance Of An Airborne Imaging 92/183 GHz Radiometer During The Bering Sea Marginal Ice Zone Experiment (MIZEX-WEST)
Author(s): J. A. Gagliano; J . J. McSheehy; D. J. Cavalieri
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Paper Abstract

An airborne imaging 92/183 GHz radiometer was recently flown onboard NASA's Convair 990 research aircraft during the February 1983 Bering Sea Marginal Ice Zone Experiment (MIZEX-WEST). The 92 GHz portion of the radiometer was used to gather ice signature data and to generate real-time millimeter wave images of the marginal ice zone. Dry atmospheric con-ditions in the Arctic resulted in good surface ice signature data for the 183 GHz double sideband (DSB) channel situated ±8.75 GHz away from the water vapor absorption line. The radiometer's beam scanner imaged the marginal ice zone over a ±45 degrees swath angle about the aircraft nadir position. The aircraft altitude was 30,000 feet (9.20 km) maximum and 3,000 feet (0.92 km) minimum during the various data runs. Calculations of the minimum detectable target (ice) size for the radiometer as a function of aircraft altitude were performed. In addition, the change in the atmospheric attenuation at 92 GHz under varying weather conditions was incorporated into the target size calculations. A radiometric image of surface ice at 92 GHz in the marginal ice zone is included.

Paper Details

Date Published: 14 October 1983
PDF: 7 pages
Proc. SPIE 0423, Millimeter Wave Technology II, (14 October 1983); doi: 10.1117/12.936181
Show Author Affiliations
J. A. Gagliano, Georgia Institute of Technology (United States)
J . J. McSheehy, Georgia Institute of Technology (United States)
D. J. Cavalieri, NASA (United States)

Published in SPIE Proceedings Vol. 0423:
Millimeter Wave Technology II
James C. Wiltse, Editor(s)

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