SIMULATION OF DEPTH REGIME IN THE SEA USING FIELD DATA ON THE VOLUME SCATTERING FUNCTION
The aim of the work is to refine existing algorithms for experimental data processing on measurements of optical characteristics of sea water. The problem when the light field does not depend on lighting conditions is analyzed to find out features of multiple light scattering in a medium with a strong scattering anisotropy. For real scattering phase functions a simple iterative algorithm is proposed determining the characteristics of deep body brightness. The scattering indicatrix obtained during ship measurements in the Black sea in 2012 is used, device that measures the angular light scattering index in the angular range of 0.5°-178° in 12 spectral ranges from 380 to 780 nm have been used on-board. In the calculations, the parameter of the indicatrix asymmetry varied from 25 to 72. It is shown that the error in determining the light absorption index based on the characteristics of the light field, due to inaccurate information about the scattering indicatrix, is significantly less than the error of such estimates made by the formulas of the two-stream approximation of the radiation transfer equation.