Consideration on accuracy and efficiency of two-scale polarimetric emissivity model used for oceanic passive microwave remote sensing

Oceanic emission and scattering model is critical in remote sensing wind vector using passive polarimetric microwave radiometer. The brightness temperature emitted from the ocean is mainly determined by the surface roughness, the sea surface temperature, and the dielectric constant of the seawater. The emissivity of rough surface can be calculated by two-sacle model. In this paper, we first dedicate to discuss the effects of some parameters on model calculations, and then we discuss a method to improve the accuracy and efficiency in emissivity simulation, revise Johnson[2006]´ s newly published model using our method. The results by compared it with experiments models prove that the revised model is not only accurate enough, but also lower computationally time.