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Abstract
We propose a simple approach to the evaluation of parameters of organic films on the sea surface from radar measurements. The approach is based on the perturbation technique for calculating the scattered field intensity and linear theory of water waves on the surface of a viscous fluid. As a result, we have obtained an evident expression for the intensity of the signal backscattered from the sea surface covered by a film, depending on the angle of incidence, surface tension, and elastic properties of the film. The obtained dependence is in qualitative agreement with the experimental data. The influence of the film on the Doppler shift of the scattered field frequency is also discussed.