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TitleSAR measurements of cean wind and wave fields in hurricanes
AuthorHorstmann, J; Vachon, P; Lehner, S; Hoja, D
SourceProceedings, IGARSS, IEEE International Geoscience and Remote Sensing Symposium, Toulouse, France 2003; 2003 p. 230-232
Alt SeriesEarth Sciences Sector, Contribution Series 2005349
PublisherInstitute of Electrical and Electronics Engineers (Piscataway, New Jersey, USA)
MeetingIGARSS 2003; Toulouse; FR; July 21-25, 2003
Documentcomputer file
MediaCD-ROM; digital
AbstractSpaceborne synthetic aperture radar (SAR) is still the only instrument providing directional information on surface wind and ocean waves on a global and continuous basis. From RADARSAT-1, many SAR images have been collected over the past years, which cover several hurricanes and allow investigation of the wind and wave fields under these extreme situations. A time-frame of 27 days of ERS-2 SAR wave mode data was processed, which covers several tropical cyclones in the Atlantic Ocean, of which Hurricane Edouard has been investigated in detail together with additional data available from scatterometers, buoys and weather centers. The wind fields and wave parameters are extracted from SAR imagery and compared to results of the numerical model output provided by the European Centre for Medium-Range Weather Forecast (ECMWF) and co-located ERS-2 scatterometer measurements. For each wave system, spectral parameters such as wavelength, wave propagation direction and wave age are calculated and compared to the numerical model output provided by ECMWF.

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