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| Titel |
A first approach to model the low-frequency wave activity in the plasmasphere |
| VerfasserIn |
R. André, F. Lefeuvre, F. Simonet, U. S. Inan |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 20, no. 7 ; Nr. 20, no. 7, S.981-996 |
| Datensatznummer |
250014426
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| Publikation (Nr.) |
 copernicus.org/angeo-20-981-2002.pdf |
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| Zusammenfassung |
A comprehensive empirical
model of waves is developed in the objective to simulate wave-particle
interactions involved in the loss and acceleration of radiation belt electrons.
Three years of measured magnetic wave field components from the Plasma Wave
Instrument on board the DE-1 satellite are used to model the amplitude spectral
density of the magnetic wave field of each type of emission observed in the
equatorial regions of the plasmasphere: VLF transmitter emissions, chorus
emissions, plasmaspheric hiss emissions and equatorial emissions below ~ 200
Hz. Each model is a function of the wave frequency f , the MLT, L
and Mlat parameters, and the Kp values. The performances of the
plasmaspheric hiss and chorus models are tested on amplitude spectra recorded
on board the OGO-5 and GEOS-1 satellites.
Key words. Magnetospheric physics (plasmasphere;
plasma waves and instabilities; instruments and techniques) |
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