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| Titel |
Effects of neutral wind on the electron temperature at a height of 600 km in the low latitude region |
| VerfasserIn |
S. Watanabe, K.-I. Oyama |
| 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 ; 14, no. 3 ; Nr. 14, no. 3, S.290-296 |
| Datensatznummer |
250012208
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| Publikation (Nr.) |
 copernicus.org/angeo-14-290-1996.pdf |
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| Zusammenfassung |
| Electron temperature observed by the Hinotori
satellite with the low inclination at the height of ~600 km was studied in
terms of local time, season, latitude, magnetic declination and solar flux
intensity during a 16-month period from 1981 to 1982. The electron temperatures
show steep rise in the early morning (well known as morning overshoot), decrease
after that and again increase at ~18 hours (hereafter named as evening
overshoot). Generally the morning overshoot becomes more enhanced in the winter
hemisphere and for higher solar fluxes. The evening overshoot becomes more
pronounced in the mid-latitude in all seasons and more enhanced in the winter
hemisphere in the same way as the morning overshoot. A difference is seen
between 210°–285° and 285°–360° longitudes where magnetic declination is
different. The longitudinal dependence of electron temperature indicates that
the neutral wind also contributes to the thermal structure in the low latitude
ionosphere. |
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