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Retrieval of the surface wind speed from satellite radio-altimeter data: a review of algorithms

Karaev, V.Y.; Kanevsky, M.; Meshkov, E.M.; Cotton, D.; Gommenginger, C.. 2006 Retrieval of the surface wind speed from satellite radio-altimeter data: a review of algorithms. Radiophysics and Quantum Electronics, 49 (4). 251-263. 10.1007/s11141-006-0058-5

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Abstract/Summary

We give a review of surface wind-speed retrieval algorithms using satellite radio-altimeter data and analyze the efficiency of these algorithms. The data processing by new radio altimeters (JASON and ENVISAT) showed that the two-parameter algorithm developed for the satellite “Topex A” effectively operates with the data of the new radio altimeters and exceeds in accuracy the conventional algorithm by 5–10%. We discuss two main reasons for the wind-speed retrieval errors: (i) ambiguous relationship between the wind speed and the backscattering cross section and (ii) regional features of the wave climate formation. Within the framework of a two-parameter algorithm, we propose a new approach for the wind-speed retrieval problem, in which two-mode structures (wind waves and a swell) are taken into account. The data processing confirmed that the new approach allows one to reduce the error related to regional features of the wave climate formation by another 5–7%.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1007/s11141-006-0058-5
ISSN: 0033-8443
Date made live: 07 Feb 2007 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/144029

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