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Using the small-slope approximation model of microwave emission of rough sea surface, the impacts of sea surface wind on brightness tem- perature variations generated by the surface rough- ness, i.e. ?Th,v, are investigated. Here ?T denotes the brightness temperature variation, and “h” and “v” denote the horizontal and vertical polarizations re- spectively. ?Th,v has a linear relation with wind speed, sea surface temperature (SST) and sea surface sa- linity (SSS) respectively. Further more, the impact of wind direction on SSS retrieval, under small inci- dence angles, can be removed by calculating (?Th+?Tv). These characteristics provide simple new ways to develop an SSS retrieval algorithm without wind direction factor.
Using the small-slope approximation model of microwave emission of rough sea surface, the impacts of sea surface wind on brightness tem- perature variations generated by the surface rough- ness, ie? Th, v, are investigated. temperature variation, and “h” and “v” denote the horizontal and vertical polarizations re- spectively. · Th, v has a linear relation with wind speed, sea surface temperature (SST) and sea surface sa- linity (SSS) respectively. Further characteristics of the impact of wind direction on SSS retrieval, under small inci- dence angles, can be removed by calculating (? Th +? Tv). These characteristics provide simple ways to develop an SSS retrieval algorithm without wind direction factor.