Limits of applicability of geometrical optics approximation for light backscattering on a quasihorizontally oriented hexagonal ice plate
A.V. Konoshonkin1,2, N.V. Kustova1, A.G. Borovoi1,2
1V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
2National Research Tomsk State University, 36, Lenin Avenue, Tomsk, 634050,Russia
Keywords: geometrical optics, physical optics, light scattering, ice crystals
Abstract
At present, quasihorizontally oriented ice crystals of cirrus clouds are the object of active research. Experimental observations are made by multiwavelength and polarization lidar for interpreting their signals based on solutions obtained in the approximation of physical or geometrical optics. The article compares these approximations for the solution of the inverse scattering of light by quasihorizontally oriented hexagonal ice plates. Special attention is paid to the limits of applicability of geometrical optics method for solving such problems.
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