V.V. Popov - Ph. D. (Geogr.), Associate Professor, Deputy Head of Theoretical Hydrometeorology Department, Russian Air Force Military Educational and Scientific Center «Zhukovsky-Gagarin Air Force Academy» (Voronezh)
I.I. Ulshin - Ph. D. (Phys.-Mat.), Associate Professor, Head of Theoretical Hydrometeorology Department, Russian Air Force Military Educational and Scientific Center «Zhukovsky-Gagarin Air Force Academy» (Voronezh). E-mail: ulshin@rambler.ru
P.A. Timofeev - Head of Center, Main Hydrometeorological Center of the Ministry of Defense of RF (Moscow)