Published in

European Geosciences Union, Annales Geophysicae, 1(16), p. 25-33, 1998

DOI: 10.1007/s00585-997-0025-2

European Geosciences Union, Annales Geophysicae, 1(16), p. 25

DOI: 10.1007/s005850050576

Links

Tools

Export citation

Search in Google Scholar

Strong localized variations of the low-altitude energetic electron fluxes in the evening sector near the plasmapause

Journal article published in 1998 by E. E. Titova, T. A. Yahnina, A. G. Yahnin ORCID, Yahnina Ta, Yahnin Ag, B. B. Gvozdevsky, Lyubchich Aa, A. A. Lyubchich, V. Y. U. Trakhtengets, Demekhov Ag, A. G. Demekhov, J. L. Horwitz, F. Lefeuvre, D. Lagoutte, J. Manninen ORCID and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

Full text: Download

Green circle
Preprint: archiving allowed
Upload
Green circle
Postprint: archiving allowed
Upload
Green circle
Published version: archiving allowed
Upload
Policy details
Data provided by SHERPA/RoMEO

Abstract

Abstract. Specific type of energetic electron precipitation accompanied by a sharp increase in trapped energetic electron flux are found in the data obtained from low-altitude NOAA satellites. These strongly localized variations of the trapped and precipitated energetic electron flux have been observed in the evening sector near the plasmapause during recovery phase of magnetic storms. Statistical characteristics of these structures as well as the results of comparison with proton precipitation are described. We demonstrate the spatial coincidence of localized electron precipitation with cold plasma gradient and whistler wave intensification measured on board the DE-1 and Aureol-3 satellites. A simultaneous localized sharp increase in both trapped and precipitating electron flux could be a result of significant pitch-angle isotropization of drifting electrons due to their interaction via cyclotron instability with the region of sharp increase in background plasma density.Key words. Ionosphere (particle precipitation; wave-particle interaction) Magnetospheric Physics (plasmasphere)