INVESTIGATION OF THE CONDITIONS FOR PROPAGATION OF AURORAL HISS IN THE EARTH›S MAGNETOSPHERE AND IONOSPHERE

Abstract

This paper presents the results of modeling the generation and propagation of auroral hiss in the Earth’s magnetosphere and ionosphere. We analysed propagation conditions responsible for simultaneous observations of the auroral hiss in the auroral zone and polar cap region. We showed that considering the auroral hiss as a sum of acts of quasi-electrostatic waves generation distributed by altitude, latitude and wave vector azimuthal angle, these waves form two beams in the meridional plane. One beam propagates toward the equator from the field line where generation occurred and the other toward to the pole. This effect can cause simultaneous observations of the auroral hiss at two latitudinally separated observational sites.