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Titel |
Lithosphere-atmosphere-ionosphere coupling as governing mechanism for preseismic short-term events in atmosphere and ionosphere |
VerfasserIn |
O. Molchanov, E. Fedorov, A. Schekotov, E. Gordeev, V. Chebrov, V. Surkov, A. Rozhnoi, S. Andreevsky, D. Iudin, S. Yunga, A. Lutikov, M. Hayakawa, P. F. Biagi |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1561-8633
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Digitales Dokument |
URL |
Erschienen |
In: Natural Hazards and Earth System Science ; 4, no. 5/6 ; Nr. 4, no. 5/6 (2004-11-22), S.757-767 |
Datensatznummer |
250001393
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Publikation (Nr.) |
copernicus.org/nhess-4-757-2004.pdf |
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Zusammenfassung |
We present a general concept of mechanisms of preseismic phenomena in the
atmosphere and ionosphere. After short review of observational results we
conclude: 1. Upward migration of fluid substrate matter (bubble) can lead to
ousting of the hot water/gas near the ground surface and cause an earthquake
(EQ) itself in the strength-weakened area;
2. Thus, time and place of the bubble appearance could be random values, but
EQ, geochemistry anomaly and foreshocks (seismic, SA and ULF electromagnetic
ones) are casually connected;
3. Atmospheric perturbation of temperature and density could follow
preseismic hot water/gas release resulting in generation of atmospheric
gravity waves (AGW) with periods in a range of 6–60min;
4. Seismo-induced AGW could lead to modification of the ionospheric
turbulence and to the change of over-horizon radio-wave propagation in the
atmosphere, perturbation of LF waves in the lower ionosphere and ULF
emission depression at the ground. |
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