Solar-Terrestrial Physics Solar-Terrestrial Physics Solar-Terrestrial Physics 2500-0535 69997 10.12737/stp-101202407 Results of current research Results of current research Results of current research Influence of relief on the atmospheric electric field Influence of relief on the atmospheric electric field Денисенко Валерий Васильевич Denisenko Valery Vasilyevich denisen@icm.krasn.ru

доктор физико-математических наук;

doctor of physical and mathematical sciences;

 Институт вычислительного моделирования СО РАН Красноярск Россия Institute of Computational Modelling RAS SB Krasnoyarsk Russian Federation 26 03 2024 26 03 2024 10 1 49 53 08 09 2023 08 11 2023 https://zh-szf.ru/en/nauka/article/69997/view

Measurements of the fair-weather electric field in mountainous areas are affected by the terrain, and therefore need additional calibration to be included in the global field picture. To do this, it is proposed to solve the three-dimensional electric current continuity problem of the atmosphere in the region between the Earth's surface and the ionosphere. As an example, the neighborhood of Klyuchevskaya Sopka is considered. With an increase in the height of the plateaus, the fair-weather electric current density above them increases, and the electric field strength decreases. A one-dimensional model of atmosphere conductivity is not applicable for terrain with steep slopes. A comparison of the daily-seasonal diagrams constructed according to the data of the Carnegie Cruise VII and according to the Tomsk Observatory showed the similarity of variations of the fair-weather electric field strength in such different places on the Earth. The field over the sea is about half as small as over low-lying land at the same time.

Measurements of the fair-weather electric field in mountainous areas are affected by the terrain, and therefore need additional calibration to be included in the global field picture. To do this, it is proposed to solve the three-dimensional electric current continuity problem of the atmosphere in the region between the Earth's surface and the ionosphere. As an example, the neighborhood of Klyuchevskaya Sopka is considered. With an increase in the height of the plateaus, the fair-weather electric current density above them increases, and the electric field strength decreases. A one-dimensional model of atmosphere conductivity is not applicable for terrain with steep slopes. A comparison of the daily-seasonal diagrams constructed according to the data of the Carnegie Cruise VII and according to the Tomsk Observatory showed the similarity of variations of the fair-weather electric field strength in such different places on the Earth. The field over the sea is about half as small as over low-lying land at the same time.

 atmosphere global electric circuit fair-weather electric field calibration relief daily-seasonal diagram atmosphere global electric circuit fair-weather electric field calibration relief daily-seasonal diagram The work was financially supported by the Russian Science Foundation (Grant No. 22-27-00006) The work was financially supported by the Russian Science Foundation (Grant No. 22-27-00006)

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