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1 Artificial Satellites : Journal of Planetary Geodesy

1 2020

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Comparative study of the energetic electrons registered together with the broad band emissions in different regions of the ionosphere

Błęcki Jan, Wronowski Roman, Słomiński Jan, Savin Sergey, Iwański Rafał, Haagmans Roger

Artificial Satellites : Journal of Planetary Geodesy

2020

Vol. 55, No. 4

130--149

ELF/VLF waves have been registered in the outer polar cusps simultaneously with high energy electrons fluxes by the satellites Magion 4 (subsatellite to Interball 1), Polar and CLUSTER. Further, we discuss similar observations in the different regions of the ionosphere, where DEMETER registered energetic electrons. The DEMETER satellite operating on the nearly polar orbit at the altitude 650 km crossed different regions in the ionosphere. Registrations of ELF/VLF/HF waves together with the energetic electrons in the polar cusp, in the ionospheric trough and over thunderstorm areas are presented in this paper. The three satellites of ESA’s Swarm mission provide additional information on the ELF waves in the mentioned areas together with electron density and temperature. A brief discussion of the generation of these emissions by the so-called “fan instability” (FI) and beam instability is presented.