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Gyrotropic waves in in the mid-latitude ionosphereстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 10 августа 2018 г.
- Авторы: Sorokin V.M., Pokhotelov O.A.
- Журнал: Journal of Atmospheric and Solar-Terrestrial Physics
- Том: 67
- Год издания: 2005
- Издательство: Pergamon Press Ltd.
- Местоположение издательства: United Kingdom
- Первая страница: 921
- Последняя страница: 930
- DOI: 10.1016/j.jastp.2005.02.015
- Аннотация: The propagation of electromagnetic ULF perturbations in the thin conductive ionospheric layer in the magnetic meridian plane is considered. The dispersion relation for the waves propagating in the horizontal direction is obtained accounting for the influence of the conjugate ionosphere. The dependence of the phase velocity and absorption coefficient as the function of the wave frequency and magnetic field inclination are found. It is shown that in the frequency range 0.001 1 Hz the phase velocity increases from a few units to a few tenths of km/s depending on the frequency and so far follows the approximate dependence ω. The phase velocity decreases with the increase in the magnetic field inclination. The propagation of quasi-harmonic and unipolar impulses of gyrotropic waves in the horizontal direction is analyzed. The dependence of their characteristics on the values of conductivity tensor components and on the magnetic field inclination is evaluated. The generation of gyrotropic waves by the electromagnetic field of atmospheric origin in the presence of ionospheric inhomogeneities is considered. The calculation of the power spectra of the geomagnetic field oscillations at the ground level is carried out. The dependence of the spectrum on the magnetic field inclination is obtained. Some features of geophysical phenomena, associated with propagation of gyrotropic waves in the low ionosphere are discussed.
- Добавил в систему: Похотелов Олег Александрович