Solar-Terrestrial Physics Solar-Terrestrial Physics Solar-Terrestrial Physics 2500-0535 113773 10.12737/stp-121202604 sxgyrm Results of current research Results of current research Results of current research Studying the influence of geomagnetic storms on parameters of the ionospheric F2 layer during solar activity cycle 24 Studying the influence of geomagnetic storms on parameters of the ionospheric F2 layer during solar activity cycle 24 Сидоренко Клим Андреевич Sidorenko Klim Andreevich sidorenko.klim@yandex.ru Васенина Алена Андреевна Vasenina Alena Andreevna vas.al.an@rambler.ru Институт радиофизики и физической электроники ОНЦ СО РАН Омск Россия Institute of Radiophysics and Physical Electronics Omsk Scientific Center SB RAS Omsk Russian Federation Институт радиофизики и физической электроники ОНЦ СО РАН Омск Россия Institute of Radiophysics and Physical Electronics Omsk Scientific Center SB RAS Omsk Russian Federation 25 03 2026 25 03 2026 12 1 22 28 15 07 2025 24 10 2025 https://naukaru.ru/en/nauka/article/113773/view

This paper presents the results of a study on the behavior of parameters of the ionospheric F2 layer, such as the critical frequency (f₀F2) and the peak height of the layer (hₘF2), under geomagnetic storms of varying intensities. The study is based on vertical sounding measurements from the DIDBase database and the Dst index calculated by the World Data Center for Geomagnetism. We examine a methodology for identifying the presence of a geomagnetic storm using Dst-index time series. The main patterns of f₀F2 and hₘF2 variations for different geographic latitudes, seasons, and storm intensities are identified and analyzed. The obtained results can be useful for forecasting and modeling ionospheric conditions, which is of great importance for various applications, including satellite communications, global positioning systems, and shortwave radio communications.

This paper presents the results of a study on the behavior of parameters of the ionospheric F2 layer, such as the critical frequency (f₀F2) and the peak height of the layer (hₘF2), under geomagnetic storms of varying intensities. The study is based on vertical sounding measurements from the DIDBase database and the Dst index calculated by the World Data Center for Geomagnetism. We examine a methodology for identifying the presence of a geomagnetic storm using Dst-index time series. The main patterns of f₀F2 and hₘF2 variations for different geographic latitudes, seasons, and storm intensities are identified and analyzed. The obtained results can be useful for forecasting and modeling ionospheric conditions, which is of great importance for various applications, including satellite communications, global positioning systems, and shortwave radio communications.

 F2-layer critical frequency F2-layer peak height geomagnetic activity Dst index F2-layer critical frequency F2-layer peak height geomagnetic activity Dst index The work was performed on the Government Assignment of the Omsk Scientific Center SB RAS (Project State Registration Number 125013101211-4) The work was performed on the Government Assignment of the Omsk Scientific Center SB RAS (Project State Registration Number 125013101211-4)

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