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| Titel |
Ion-neutral coupling in the high-latitude F-layer from incoherent scatter and Fabry-Perot interferometer measurements |
| VerfasserIn |
K. Cierpka, M. J. Kosch, M. Rietveld, K. Schlegel, T. Hagfors |
| 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 ; 18, no. 9 ; Nr. 18, no. 9, S.1145-1153 |
| Datensatznummer |
250014064
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| Publikation (Nr.) |
 copernicus.org/angeo-18-1145-2000.pdf |
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| Zusammenfassung |
Since the auroral ionosphere provides an
important energy sink for the magnetosphere, ionosphere-thermosphere coupling
must be investigated when considering the energy budget of the
ionosphere-magnetosphere coupling. We present the first Scandinavian
ground-based study of high-latitude F-region ion-neutral frictional heating
where ion velocity and temperature are measured by the EISCAT incoherent scatter
radar as well as neutral wind and temperature being measured simultaneously by a
Fabry-Perot interferometer. A geomagnetically active period (Kp
= 7– – 5–) and quiet period (Kp = 0+
– 0) were studied. Neglecting the neutral wind can result in errors of
frictional heating estimates of 60% or more in the F-layer. About 96% of the
local ion temperature enhancement over the neutral temperature is accounted for
by ion-neutral frictional heating.
Key words: Ionosphere (auroral ionosphere;
ionosphere-atmosphere interactions) |
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