Abstract

In a number of VLF experiments with low-orbiting Intercosmos satellites, high-intensity, discrete VLF emissions at frequencies above the local LHR were observed predominantly between L = 2.3 and 4.0. The frequency of their intensity maximum varies continuously with geomagnetic latitude, and approximately parallels the value of a quarter of the equatorial electron gyrofrequency. This kind of emissions has not yet been found on the records of ground stations. Their occurrence on satellite records shows very good correlation with the simultaneously measued electron temperature enhancements. The origin and mode of propagation of the emissions are discussed.

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