1 Department of Wind Energy, Technical University of Denmark2 Meteorology, Department of Wind Energy, Technical University of Denmark3 Nansen Environmental and Remote Sensing Center4 Centre for Maritime Research and Experimentation5 CLS6 Bedford Institute of Oceanography7 Chinese Academy of Sciences8 Nanjing University of Information Science and Technology9 National Oceanographic and Atmospheric Administration10 Johns Hopkins University11 German Aerospace Center12 Norwegian Meteorological Institute13 University of Washington14 University of Miami15 Defence Research and Development Canada16 Bedford Institute of Oceanography17 Johns Hopkins University18 University of Miami19 Defence Research and Development Canada
This paper represents a consensus on the state-of-the-art in wind retrieval using synthetic aperture radar (SAR), after the SEASAR 2012 workshop “Advances in SAR Oceanography” hosted by the European Space Agency (ESA) and the Norwegian Space Centre in Tromsø, Norway 18–22 June 2012. We document the recent advances of the methodologies, which are capitalizing on the improved capabilities of the modern generation of SAR sensors providing Doppler grid and multi-polarizations. The many applications of SAR wind retrieval have also benefitted from on the improved availability of wide swath modes (~500 km) with excellent coverage, giving much better overview of regional and mesoscale wind features. The accuracy of offshore wind retrieval is robust and generally in the order of 1.5 m/s in speed and 20° in direction, whereas the new methodologies steadily improve the performance for the more challenging conditions near cyclones and complex coastal topography.