Abstract
The observational results of the spectral density of the Doppler frequency shift Δfd during intervals of bay-like perturbations in the ionospheric F2 layer are presented. We showed that wave perturbations with periods of 1–2 h are observed during substorm intervals, and their intensity reaches a maximum 1–2 h after the substorm onset, after which it decreases. The statistical properties of the Doppler frequency shift variations are analyzed. We showed that the normal law can be used as a probabilistic model of the time series Δfd(t) as a random process in quiet intervals, and the normal law with a refined asymmetry and kurtosis of the probability density function can be used during substorms (Edgeworth series).
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Sergeenko, N.P. Spectral and Statistical Properties of the Doppler Frequency Shift during Substorms in the F2 Layer. Geomagn. Aeron. 61 (Suppl 1), S116–S126 (2021). https://doi.org/10.1134/S0016793222010170
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DOI: https://doi.org/10.1134/S0016793222010170