The paper presents an analysis where a series of 55 wind field maps are retrieved from SAR (Synthetic Aperture Radar) images recorded by the European satellite ERS-2. The site of investigation is at Horns Rev in the North Sea where the worlds largest wind farm is in operation and where a unique meteorological time series is collected. The wind speed maps are retrieved based on the scatterometer model algorithms CMOD-4 and CMOD-IFR. The wind maps are used as input to a prototype software called RWT (Riso Wemsar Tool). The software calculates the offshore wind resource based on the spatial wind statistics from the satellite images. The calculated statistics (in form of a tab-file) can then be input to the WA{sup}sP programme and used instead of observatations by instruments on masts bearing in mind the limitations of SAR in terms of its absolute accuracy and bias.
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