Matrix of light scattering on a truncated plate-like droxtal preferably oriented in a horizontal plane

Matrices of light scattering on a truncated plate-like droxtal oriented preferably in a horizontal plane have been calculated in the geometrical optics approximation. New halos are shown to appear due to the presence of truncated faces in the ice crystal. The main quantitative characteristics of brightest halos have been obtained. Based on the modified light scattering matrix, all 16 elements of the light scattering matrix are analyzed as compared to the case of light scattering by a hexagonal ice plate.