Open AccessTHREE-DIMENSIONAL MAGNETOGRADIENT WAVES IN THE UPPER ATMOSPHERE
Author(s) -
G. V. Jandieri,
A. I. Gvelesiani,
Zhuzhuna Diasamidze,
Mzia Diasamidze,
Irma Takidze
Publication year - 2017
Publication title -
journal of advances in physics
Language(s) - English
Resource type - Journals
ISSN - 2347-3487
DOI - 10.24297/jap.v13i5.6122
Subject(s) - physics , ionosphere , magnetohydrodynamics , dispersion relation , dispersion (optics) , oscillation (cell signaling) , classical mechanics , wave propagation , computational physics , geophysics , magnetic field , mechanics , optics , quantum mechanics , biology , genetics
General dispersion equation has been obtained for three-dimensional electromagnetic planetary waves, from which follows, as particular case Khantadze results in one-dimension case. It was shown that partial magnetic field line freezing-in as in one-dimension case lead to the excitation of both “fast†and “slow†planetary waves, in two-liquid approximation (i.e. at ion drag by neutral particles) they are represent oscillations of magnetized electrons and partially magnetized ions in E region of the ionosphere. In F region of the ionosphere using one-liquid approximation only “fast†planetary wave will be generated representing oscillation of medium as a whole. Hence, it was shown that three-dimension magnetogradient planetary waves are exist in all components of the ionosphere, and as exact solutions, with well-known slow short-wave MHD waves, are simple mathematical consequence of the MHD equations for the ionosphere.