ANGULAR-DISTRIBUTION OF THE SUBMARINE LIGHT-FIELD - MODIFICATION BY MULTIPLE-SCATTERING

A theoretical analysis is presented of the angular distribution of the submarine light field. The model, which includes the effect of multiple scattering, leads to a new expression for the upward scattering coefficient. It can be applied to calculation of the average cosine for description of the zenith angular distribution of the light field, and to calculation of the vertical attenuation coefficient for study of the transmission of downwelling irradiance. From a computational point of view, the new model is much more efficient than Monte Carlo calculations, which have been, until now, the most commonly used vehicle for characterization of the angular structure of the submarine light field in the presence of multiple scattering.