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UDC 535.361We consider underwater sunlight fluctuations in the case of a one-dimensional irregular sea surface. Several rigorous and approximate models are proposed, which make it possible to analytically treat and physically explain the dependence of the coefficient of variation of the underwater irradiance on the depth, the wind velocity, and optical parameters of the sea water.

We consider statistical characteristics of the solar radiation in the sea. Expressions for the first-, second-, and third-order statistical moments of the irradiation are obtained. For the skewness of the probability distribution of the underwater irradiance, the dependences on the depth, wind velocity, and optical parameters of water are studied.

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