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| Titel |
Lithosphere - Atmosphere - Ionosphere Circuit Model |
| VerfasserIn |
Z. Kereselidze, N. Kachakhidze, M. Kachakhidze |
| Konferenz |
EGU General Assembly 2012
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 14 (2012) |
| Datensatznummer |
250058460
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| Zusammenfassung |
| There are offered possibilities of original LAI circuit model. The problem concerns
of existence of self-generated electromagnetic oscillations in the segment of LAI
system, which are results of tectonic stress developing in the focus area of expected
earthquake.
By this model the main (lowest) frequency of these electromagnetic oscillations
frequency spectrum is expressed analytically by following formula:
Ï = β c
l
where β(Ï) is the coefficient depended on the frequency and geological characteristics of the
medium and approximate to one, c-is the speed of light, and l- the length of the fault in the
focus of the expected earthquake.
On the base of relevant diagnosis of experimental data, the model gives us possibility to
discuss the problem about location, time of occurrence and intensity of an expected
earthquake with certain accuracy.
In addition to it, considered model does not block the fall-unstable model of earthquake
preparing and electromagnetic phenomena accompanied earthquake preparing process. On
the contrary, the imagination of physical picture may be simplified in the separate stage of
earthquakes preparing. Namely, it is possible to reliably separate series of foreshocks and
aftershocks.
By this point of view, the certain optimism about using of EM emission as earthquake
precursor of full value may be expressed. The base of such optimism is developing of various
phenomena connected to VLF emission many times fixed in the surroundings of epicentral
area and cosmic space (changing of intensity of electro-telluric current, perturbations of
geomagnetic field in forms of irregular pulsations or regular short-period pulsations,
perturbations of atmospheric electric field, perturbations of ionosphere critical frequency and
TEC, variations of height of lower ionosphere, parameters of ionospheric medium: changing
of specific dielectric conductivity and spectrum of MGD waves in it, atmospheric-ionospheric
discharging and etc.). |
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