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Electromagnetic Model for Rough Sea Surface Microwave Emission and Reconstruction of Ripple Spectrum Parameters

ABaRACT The two scale model of sea surface brightness temperature is considered. The microwave emission of gravitational-capillary part of sea wave spectrum is calculated by using perturbation technique and large scale waves are taken into account by averaging the emission from locally flat sloped squares. The resonant effects in thermal radiation formed by individual harmonics of ripple spectrum permits to recover from multichannel radiometric data parameters of spatial sea ripple spectrum. The reconstructed one in such way from large amount airborne measured radiometric data reveals good agreement with that obtained from radar data.