V. I. Kozlov, P. M. Nagorskiy, K. N. Pustovalov, S. V. Smirnov, A. A. Toropov, “The main scenarios for the development of atmospheric-electric variations in the surface atmosphere during severe frosts in Siberia”, Vestnik KRAUNC. Fiz.-Mat. Nauki, 2019, Volume 29, Number 4,Pages <nobr>135

INSTRUMENTS AND METHODS OF MEASUREMENT

The main scenarios for the development of atmospheric-electric variations in the surface atmosphere during severe frosts in Siberia

V. I. Kozlov^a, P. M. Nagorskiy^b, K. N. Pustovalov^b, S. V. Smirnov^c, A. A. Toropov^a

^a Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy of SB RAS, 677980, Yakutsk, Lenin ave., 36, Russia
^b Institute of Monitoring of Climatic and Ecological Systems SB RAS, 364055, Tomsk, Academichesky ave., 10/3, Russia National Research Tomsk State University, 634050, Tomsk, Lenin ave., 36, Russia
^c Institute of Monitoring of Climatic and Ecological Systems SB RAS, 364055, Tomsk, Academichesky ave., 10/3, Russia

Abstract: The influence of strong temperature drops in the cold season, which are accompanying by fogs (smogs), on the meteorological and atmospheric-electric state of the atmosphere surface layer in Siberia was considered. The assumption that a decrease in the electric field strength and an increase in the air electrical conductivity in the atmosphere surface layer during the heavy and long frosts are caused by the changes of fog particles phase state and ice crystals shape at temperature less -16 C and the decrease of absolute air humidity at temperature less -35 C was made.

Keywords: group, subgroup, index of a subgroup, algorithmic problem, free product, direct product, occur-rence problem.

UDC: 537.21

MSC: 86A10

DOI: 10.26117/2079-6641-2019-29-4-135-148