Wind field structure and speed from Radarsat SAR images
نویسنده
چکیده
It has been well established that Synthetic Aperture Radar (SAR) images over the ocean can provide wind information over small spatial scales. SAR image data can be used quantitatively as an imaging scatterometer if the SAR is calibrated and a suitable wind retrieval model is available [Vachon & Dobson 1996; Wackerman et al. 1996; Fetterer et al. 1998]. Canada’s Radarsat SAR (C-band HH polarisation) with its ScanSAR wide mode characterised by a swath width of 500 km at a spatial resolution of 100 m, can provide both synoptic-scale and small-scale views of the imprint of mesoscale meteorological processes and features on the ocean’s surface.
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