Title :
A study of sea emission models for WindSat
Author :
Johnson, J.T. ; Theunissen, W.H. ; Ellingson, S.W.
Author_Institution :
Dept. of Electr. Eng. & ElectroScience Lab., Ohio State Univ., Columbus, OH, USA
Abstract :
Three physical models for the microwave polarimetric brightness temperature of the sea surface are reviewed and compared. Two of these models are based on the composite surface theory, but use slightly different forms for the sea surface spectrum. The third model is based on a small slope approximation. All models are shown to predict similar zeroth, first, and second harmonic azimuthal variations of sea brightness and to show reasonable agreement with empirical results. However some discrepancies exist that is examined.
Keywords :
microwave measurement; oceanographic techniques; radar polarimetry; remote sensing by radar; wind; WindSat; composite surface theory; harmonic azimuthal variations; microwave polarimetric brightness temperature; remote sensing; sea emission models; sea surface spectrum; sea wind vectors; small slope approximation; Atmospheric modeling; Brightness temperature; Electromagnetic scattering; Laboratories; Ocean temperature; Optical scattering; Optical surface waves; Permittivity; Predictive models; Sea surface;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International
Print_ISBN :
0-7803-7929-2
DOI :
10.1109/IGARSS.2003.1293894
