Polarimetric radiometer-retrieved wind direction ambiguity removal using twice-scan schedule

We present a method for evaluating characteristics of wind vector retrieval error's from polarimetric radiometer measurements such as WindSat. Focus is put on moving wind direction errors due to ambiguous solutions, with azimuth angle being 0 and 180. We propose a method to obtain wind direction according to first and second rank solutions of the first scan and first rank solution of the second scan. This algorithm can avoid ambiguous solution.