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| Titel |
Global diagnostics of the ionospheric perturbations related to the seismic activity using the VLF radio signals collected on the DEMETER satellite |
| VerfasserIn |
O. Molchanov, A. Rozhnoi, M. Solovieva, O. Akentieva, J. J. Berthelier, M. Parrot, F. Lefeuvre, P. F. Biagi, L. Castellana, M. Hayakawa |
| 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 ; 6, no. 5 ; Nr. 6, no. 5 (2006-08-23), S.745-753 |
| Datensatznummer |
250003709
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| Publikation (Nr.) |
 copernicus.org/nhess-6-745-2006.pdf |
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| Zusammenfassung |
| The analysis of the VLF signals radiated by ground transmitters and received
on board of the French DEMETER satellite, reveals a drop of the signals
(scattering spot) connected with the occurrence of large earthquakes. The
extension of the "scattering spots" zone is large enough (1000–5000 km)
and, probably, it increases with the magnitude of the "relative"
earthquake. A possible model to explain the phenomenology, based on the
acoustic gravity waves and the ionosphere turbulence, is proposed. The
method of diagnostics applied to this study has the advantage to be a global
one due to the world wide location of the powerful VLF transmitters and of
the satellite reception. However, a specific disadvantage exists because the
method requires rather a long time period of analysis due to the large
longitudinal displacements among the successive satellite orbits. At the
moment, at least, one month seems to be necessary. |
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