Assessment of an analytical model for sea surface wind speed retrieval from spaceborne SAR
An analytical model based on radar backscatter theory was utilized to retrieve sea surface wind speeds from C-band satellite synthetic aperture radar (SAR) data at either vertical (VV) or horizontal (HH) polarization in transmission and reception. The wind speeds were estimated from
several ENVISAT Advanced SAR (ASAR) images in Hong Kong coastal waters and from Radarsat-1 SAR images along the west coast of North America. To evaluate the accuracy of the analytical model, the estimated wind speeds were compared to coincident buoy measurements, as well as winds retrieved
by C-band empirical algorithms (CMOD4, CMOD_IRF2 and CMOD5). The comparison shows that the accuracy of the analytical model is comparable to that of the C-band empirical algorithms. The results indicate the capability of the analytical model for sea surface wind speed retrieval from SAR images
at both VV and HH polarization.
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Document Type: Research Article
College of Traffic, College of Ocean, Hohai University, Nanjing, China,LASG, Institute of Atmospheric Physics, Chinese Academy of Science, Beijing, China
Institute of Space and Earth Information Science, The Chinese University of Hong Kong, Hong Kong
IMSG, NOAA/NESDIS, Camp Springs, MD, USA
College of Traffic, College of Ocean, Hohai University, Nanjing, China
Department of Atmospheric and Oceanic Science, University of Maryland, College Park, MD, USA
NOAA/NESDIS/STAR, Camp Springs, MD, USA
Physical Oceanography Laboratory, Ocean University of China, Qingdao, China
Publication date: 2010-04-01
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