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| Titel |
The effect of disturbed-time electric fields on the inner plasmasphere |
| VerfasserIn |
H. F. Balmforth, R. J. Moffett, A. J. Smith, G. J. Bailey |
| 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 ; 12, no. 4 ; Nr. 12, no. 4, S.296-303 |
| Datensatznummer |
250010682
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| Publikation (Nr.) |
 copernicus.org/angeo-12-296-1994.pdf |
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| Zusammenfassung |
| Results from a mathematical model provide a
description of the mid-latitude, low L-shell ionosphere and plasmasphere.
Variations in the composition and dynamics of the plasmasphere and changes in
the nature of the coupling between the plasmasphere and the ionosphere are
studied for moderately disturbed conditions. Modelled results are compared to
group delay and Doppler shift measurements of whistler mode signals at Faraday,
Antarctica (L ≈ 2.5), to investigate the effects of disturbed time
electric fields on the inner plasmasphere and ionosphere. The disturbed time
electric field causes a rapid outward drifting of the plasma leading to a
decrease in modelled plasmaspheric electron density at a fixed L-value,
which agrees with experimental observations. During the periods of outward
drift, the modelled coupling flux is upwards to the plasmasphere which can lead
to a significant depletion of NmF2 values. |
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