Electromagnetic resonances in the equatorial ionosphere |
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Authors: | A B Shvartsburg |
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Institution: | (1) Izmiran, Troitsk, p/o 142092, Moscow Region, U.S.S.R. |
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Abstract: | The diagnostic and communication possibilities, based on resonant properties of ionospheric magnetoplasma near the Equator, are discussed for a wide spectral range of electromagnetic waves. The utilization of geometrical resonances of both natural and artificial origin and plasma eigenmodes are considered for a model of anisotropic heterogeneous collisional magnetoplasma at low latitudes. The possibilities of linear and non-linear wave transformation and scattering, together with the orthogonality of ionospheric gradients and geomagnetic fields, are illustrated. The threshold and self-oscillation phenomena, stimulated by heating, produced by an equatorial electrojet, photo-electrons and powerful transmitters, are examined.Non-stationary electromagnetic processes, accompanied by the transversal transport phenomena in a magnetoplasma near the equatorial plane, are discussed and the tendencies of resonant effects employment for active diagnostic and remote communication at low latitudes are also considered. |
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