SCIENCES OF EARTH

Results of the analysis of thunderstorm activity on the territory of the Republic of North Ossetia-Alania

A. A. Adzhieva^a, G. V. Kupovykh^b, Z. M. Kerefova<sup>c

a</sup> Kabardino-Balkarian State Agrarian University named after V. M. Kokov, Nal'chik
^b Institute of Computer Technology and Information Security, Engineering and Technological Academy, Southern Federal University
^c Mountain Geophysical Institute, Nalchik

Abstract: The paper presents the results of thunderstorm activity study on the territory of the Republic of North Ossetia-Alania, and in particular, in the area of the all-season tourist complex “Mamison”. The analysis of the average annual factors of thunderstorm and lightning activity in the period from 2012 to 2022 in the warm period of time (May-September) according to the LS8000 thunderstorm direction finding system was performed. The estimation of the number of cloud-earth lightning ratios of positive and negative polarity is made, the influence of the orography of the terrain on the magnitude of lightning currents is investigated, the territorial features of the distribution of cloud-earth lightning currents of different polarity are determined. The resulting expression of the linear trend for the number of thunderstorms shows a decrease in thunderstorm activity in recent years in the study area.

UDC: 551.554

Received: 29.06.2023
Accepted: 30.10.2023

DOI: 10.18522/1026-2237-2023-4-61-69

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