Verification of the empirical model of ionization of the lower ionosphere during solar flares of different classes

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Аннотация

Using the results of measurements of VLF signal parameters propagating in the Earth-D-region of the ionosphere waveguide to assess changes in the state of the lower ionosphere as a result of the impact of X-ray radiation of solar flares, allows us to obtain qualitative data on the nature and magnitude of the impact. Obtaining accurate data on the relationship between changes in electron concentration and flare parameters and reliable prediction of the conditions of propagation of LF radio signals in conditions of strong geophysical disturbances is complicated by the lack of complete information on the frequency spectrum of X-ray radiation at a particular flare and data on the ionization rate of the ionosphere at flares of different classes. The technique of determining the X-ray spectrum in a wide range of wavelengths and calculating the ionization coefficients of the lower ionosphere as a function of the ionizing radiation parameters of flares, presented in [Ryakhovsky et al., 2023], makes it possible to improve the accuracy of estimates of variations in the parameters of the lower ionosphere. The present paper is devoted to verifying the performance of the developed empirical model of the lower ionization of the lower ionosphere at the solar flare front and comparing the results obtained with experimental data on the variation of VLF radio parameters.

Авторлар туралы

I. Ryakhovsky

Sadovsky Institute of Geospheres Dynamics, Russian Academy of Sciences

Хат алмасуға жауапты Автор.
Email: ryakhovskiy88@yandex.ru
Ресей, Moscow

Y. Poklad

Sadovsky Institute of Geospheres Dynamics, Russian Academy of Sciences

Email: poklad@mail.ru
Ресей, Moscow

B. Gavrilov

Sadovsky Institute of Geospheres Dynamics, Russian Academy of Sciences

Email: boris.gavrilov34@gmail.com
Ресей, Moscow

Әдебиет тізімі

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