Выходит 12 номеров в год
ISSN Печать: 0040-2508
ISSN Онлайн: 1943-6009
Indexed in
VERTICAL PROFILE OF ATMOSPHERIC CONDUCTIVITY CORRESPONDING TO SCHUMANN RESONANCE PARAMETERS
Краткое описание
The search for a realistic vertical conductivity profile of atmosphere remains an update task of great importance for the direct electromagnetic simulations of global electromagnetic (Schumann) resonance. Such a profile is necessary when describing the impact on the ionosphere of the space weather, the pre-seismic activity or other various factors. Knowledge of the regular conductivity profile is of particular importance, since it allows computing of the observed regular parameters of Schumann resonance. Starting from the classic data, we developed the new height conductivity profile of atmosphere in the range from 2 to 98 km. The profile allows obtaining the Schumann resonance parameters consistent with experimental observations. The propagation constant of extremely low frequencies (ELF) radio waves was computed corresponding to this profile by using the rigorous full wave solution. We demonstrate a high correspondence of the frequency dependence obtained to the conventional reference model based on the records of global electromagnetic resonance. The conductivity profiles are also suggested for the ambient day and ambient night conditions. We obtained the propagation constants relevant to these profiles using the full wave solution. The power spectra of Schumann resonance were also computed and compared of the vertical electric field component in the case of uniform global distribution of thunderstorms. Spectra relevant to suggested conductivity profiles were compared with the spectrum obtained in the frameworks of the standard reference model. We also show consistency of the model data obtained with the conductivity profiles with the results of measurements of the radio signals radiated by ELF transmitters.
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Galuk Yu. P., Nickolaenko A. P., Hayakawa M., Impact of the Ionospheric Day–Night Non-Uniformity on the ELF Radio-Wave Propagation, Radiophysics and Quantum Electronics, 61, 3, 2018. Crossref
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Kudintseva I. G., Galuk Yu. P., Nickolaenko A. P., Hayakawa M., Modifications of Middle Atmosphere Conductivity During Sudden Ionospheric Disturbances Deduced From Changes of Schumann Resonance Peak Frequencies, Radio Science, 53, 5, 2018. Crossref
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Galuk Yu P., Nickolaenko A.P., Hayakawa M., Amplitude variations of ELF radio waves in the Earth–ionosphere cavity with the day–night non-uniformity, Journal of Atmospheric and Solar-Terrestrial Physics, 169, 2018. Crossref
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Nickolaenko A.P., Galuk Yu P., Hayakawa M., Kudintseva I.G., Model source bearings of Q-bursts for observations in Antarctica, Journal of Atmospheric and Solar-Terrestrial Physics, 222, 2021. Crossref
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Nickolaenko A.P., Galuk Yu P., Hayakawa M., Kudintseva I.G., Model sub-ionospheric ELF – VLF pulses, Journal of Atmospheric and Solar-Terrestrial Physics, 223, 2021. Crossref
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Zhou H., Yan F., Wang J., Luo Q., Jin T., Study on the ULF Magnetic Field Generated by Earth Currents Relating to Large EQs, Radio Science, 56, 4, 2021. Crossref