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| Titel |
Planetary wave activity in the lower ionosphere during CRISTA I campaign in autumn 1994 (October-November) |
| VerfasserIn |
D. Pancheva, J. Laštovička |
| 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 ; 16, no. 8 ; Nr. 16, no. 8, S.1014-1023 |
| Datensatznummer |
250013398
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| Publikation (Nr.) |
 copernicus.org/angeo-16-1014-1998.pdf |
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| Zusammenfassung |
On the basis of MEM spectrum analysis, the
main planetary scale fluctuations formed in the lower ionosphere are studied
over a period of 3–25 days during the CRISTA campaign (October-November 1994).
Three dominant period bands are found: 3–5, 6–8 and 15–23 (mainly 16–18) days.
For 7–8 and 16–18 day fluctuations, propagation was eastward with wave numbers K
= 3 and K = 1, respectively. The magnitude of planetary wave activity in
the mid-latitudes of the Northern Hemisphere during the CRISTA campaign seems to
be fairly consistent with the expected undisturbed normal/climatological state
of the atmosphere at altitudes of 80–100 km.
Key words. Ionosphere (ionosphere-atmosphere
interactions) · Meteorology and atmospheric dynamics (middle atmosphere
dynamics; waves and tides) |
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