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| Titel |
On the spectrum of mid-latitude sporadic-E irregularities |
| VerfasserIn |
Yu. V. Kyzyurov |
| 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. 10 ; Nr. 18, no. 10, S.1283-1292 |
| Datensatznummer |
250014078
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| Publikation (Nr.) |
 copernicus.org/angeo-18-1283-2000.pdf |
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| Zusammenfassung |
We discuss the creation of mid-latitude
sporadic-E plasma irregularities (with length-scales smaller than
sporadic layer thickness) by the neutral atmosphere turbulence. Using fluid
equations, the relation between plasma density fluctuations and the velocity
field of neutrals is derived. After a brief discussion of the relevant neutral
turbulence, the analytical expression for the power spectrum of plasma
irregularities is obtained. This expression allows a power-law type of
experimental irregularity spectra (the spectral index depends on sporadic-E
characteristics) and possible departures in detail of the irregularity spectra
from the power-law form to be explained. In addition, it allows us to make
estimates of length-scales at which such departures must occur.
Key words: Ionosphere (ionospheric irregularities;
mid-latitude ionosphere) – Space plasma physics (turbulence) |
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