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Wind Field Retrieval over the Ocean Using X-Band polarization SAR Data

Yongzheng Ren(1), Susanne Lehner(2), Mingxia He(1) and Stephan Brusch(2)

(1) Ocean University of China, Yushan Road 5, 266003, Qingdao, China
(2) German Aerospace Center DLR, M√ľnchner Str. 20, 82234, Wessling, Germany


A new X-band wind field algorithm (XMOD) based on a linear approach is discuss in another paper to describe the relationship between normalized radar cross section (NRCS), wind speed, wind direction and incidence angle. But XMOD could only be applied with VV polarization SAR data. In this paper, two C-band polarization ratio models were analysed and modified to X-band. To demonstrate the applicability of the two models, 10m height wind speeds were computed with XMOD from several VV/HH TerraSAR-X images and validated by in situ, QuickScat and model data. In addition, the wind speeds were retrieved and compared to each other from the HH and VV polarization TerraSAR-X images of the same scene at the same time.



  Higher level                 Last modified: 07.05.06