V.А. Banakh - Dr.Sc. (Phys.-Math.), Head of Laboratory, V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Sciences. E-mail: banakh@iao.ru А.А. Sukharev - Ph.D. (Phys.-Math.), Research Scientist, V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Sciences. E-mail: sukharev@iao.ru А.V. Falits - Ph.D. (Phys.-Math.), Senior Research Scientist, V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Sciences. E-mail: falits@iao.ru