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Progress In Electromagnetics Research
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MODEL OF ELECTROMAGNETIC WAVE SCATTERING FROM SEA SURFACE WITH AND WITHOUT OIL SLICKS

By A. I. Timchenko, A. E. Serebryannikov, and K. F. Schuenemann

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Abstract:
The problem of scattering from sea surface covered by oil films is investigated by using a composite random rough surface model. A model is developed which extends the range of validity beyond the small perturbation theory. A general expression for the scattering cross section is obtained taking into account a modulation of the rough surface by long surface waves. A numerical study for the radar scattering cross section is provided in order to investigate the influence of the different ranges of the rough surface spectrum on the backscattering depression. For the case of backscattering, the contrast of radar signals scattered from a slick-free and a slick-covered surface is evaluated. The study is also carried through for two-frequency probing. A possibility to explain the mechanism of the depression of backscattering is discussed. The results of this study demonstrate the importance of the improved model which takes into account the entire spectrum of the sea surface roughness for the description of scattering from an ocean surface with and without oil slicks.

Citation:
A. I. Timchenko, A. E. Serebryannikov, and K. F. Schuenemann, "Model of Electromagnetic Wave Scattering from Sea Surface with and Without Oil Slicks," Progress In Electromagnetics Research, Vol. 37, 319-343, 2002.
doi:10.2528/PIER02080106
http://www.jpier.org/PIER/pier.php?paper=0208016

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