25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics : 30 June-5 July 2019, Novosibirsk, Russian Federation / Gennadii G. Matvienko, Oleg A. Romanovskii (editors) ; organized by: V.E. Zuev Institute of Atmospheric Optics, SB RAS (Russian Federation), Siberian State University of Geosystems and Technologies (Russian Federation), Institute of Solar-Terrestrial Physics, SB RAS (Russian Federation)