Abstract
The study of the results of the Intercosmos-18 experiment has revealed simultaneous fluctuations in the LF noise emission amplitude and in the intensity of one the magnetic field components in the region of invariant latitudes where field-aligned currents are usually observed. The observed zone of fluctuations is shown to move spatially as a geomagnetic storm develops. The correlation between the magnetic field fluctuation amplitude and the amplitude of LF noise in the field-aligned current region suggests a common source of the fluctuations. Presumably, they are related to the filament structure of the plasma. The occurrence of simultaneous small-scale variations of the emissions and of the magnetic field components is experimental evidence for LF magnetic emission generation by field-aligned current streams.
Published Version
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