Abstract

The radiative-transfer equation is solved using a finite-difference method. For the first time to the author’s knowledge, finite-difference solutions are obtained for in-water radiance. Comparison with data is good for radiance distributions that are due to the Sun at depths down to 26 attenuation lengths in a lake. Comparisons are also made with off-axis radiance measurements from an ocean laser experiment together with the solution from a small-angle approximation model.

© 1985 Optical Society of America

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