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Regular version of the site

Article

Nonlinear Response of the Equatorial Current Jet to External Action and Its Influence on Electromagnetic Waves of the Whistle Range in the Magnetosphere

Cosmic Research. 2015. Vol. 53. No. 1. P. 74-79.
O.N.Savina, Bespalov P.

The nonlinear response of the equatorial current jet to external actions is considered, as well as
some geophysical effects produced by it. Irradiating the current jet by shortwave electromagnetic radiation
with amplitude modulation in ranges of VLF emission and geomagnetic pulsations, one can provide for con
ditions when a nonlinear antenna is realized in the current jet region. Estimations have shown that under the
current jet on the ground surface electromagnetic signals on modulation frequencies can be two orders of
magnitude larger than at middle latitudes due to modulated electron temperature and density. The effect of
signals from the modulated equatorial current jet on the modes of operation of the plasma magnetospheric
maser in VLF waveband is considered. The resonance modification of the spectra of natural electromagnetic
waves of VLF range in the magnetosphere is shown to be possible.