KFU. Card publication. Investigation of earthquake display in EM field and ionosphere

KAZAN
FEDERAL UNIVERSITY

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- 中文
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INVESTIGATION OF EARTHQUAKE DISPLAY IN EM FIELD AND IONOSPHERE

Form of presentation

Articles in international journals and collections

Year of publication

2021

Язык

английский

Authors, employees of KFU

Belashov Vasiliy Yurevich, author

Other authors

Kharshiladze Oleg Avtandilovich, author

Zilpimiani David O, author

Bibliographic description in the original language

Belashov V.Yu. Investigation of earthquake display in EM field and ionosphere / V.Yu. Belashov, O.A. Kharshiladze, D.O. Zilpimiani // Bulletin of TICMI, Tbilisi, Tbilisi Int. Centre of Mathematics and Informatics. - 2021.- V. 25. - No. 2. - P. 117-135.

Annotation

In this paper we present the results of our investigation of displaying of seis-mic activity in variations of both the electromagnetic (EM) field and the basic ionospheric characteristics. The 3D case is considered taking into account the effects of weak nonlinearity, dispersion and dissipation in medium, that allows us to obtain more accurate results for both the near and far zones from the earthquake epicenter. In study of the seismic response in the EM field, it is shown that a precursor arises ahead the front of seismic wave, its amplitude decreases exponentially with distance. In case of a single compression pulse, the precursor is negative, and its amplitude depends on the medium conductiv-ity and the parameters of the wave. With increasing conductivity, the amplitude of precursor increases, and its characteristic scale decreases. Regarding the response at ionospheric heights, the seismo-ionospheric post-effects have been studied, which are of great interest, in particular, for a better understanding of relationships in the system «solid Earth – atmosphere – ionosphere« and for identification of seismically caused oscillations in the spectrum of the ionospheric fluctuations, etc. The effect of the acoustic impulse caused by the Rayleigh wave on the ionosphere's neutral component near the epicenter is consid-ered, and further formation of the solitary IGWs and the TIDs, which are caused by them, at the F-layer heights in the far zone. The results obtained are in good agreement with the results of our radiophysical experiments during seismic events at the Russia Far East region.

Keywords

ionosphere, electromagnetic field, earthquake, precursor, Rayleigh wave, IGW and TID solitons

The name of the journal

Bulletin of TICMI

On-line resource for training course

http://dspace.kpfu.ru/xmlui/bitstream/handle/net/166054/Belashov_Kharshiladze_Zilpimiani__Bulletin_of_TICMI__2021_.pdf?sequence=1&isAllowed=y

URL

http://www.emis.de/journals/TICMI/

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=258388&p_lang=2

Resource files

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Belashov_Kharshiladze_Zilpimiani__Bulletin_of_TICMI__2021_.pdf	0,31	pdf	show / download

Full metadata record

Field DC	Value	Language
dc.contributor.author	Belashov Vasiliy Yurevich	ru_RU
dc.contributor.author	Kharshiladze Oleg Avtandilovich	ru_RU
dc.contributor.author	Zilpimiani David O	ru_RU
dc.date.accessioned	2021-01-01T00:00:00Z	ru_RU
dc.date.available	2021-01-01T00:00:00Z	ru_RU
dc.date.issued	2021	ru_RU
dc.identifier.citation	Belashov V.Yu. Investigation of earthquake display in EM field and ionosphere / V.Yu. Belashov, O.A. Kharshiladze, D.O. Zilpimiani // Bulletin of TICMI, Tbilisi, Tbilisi Int. Centre of Mathematics and Informatics. - 2021.- V. 25. - No. 2. - P. 117-135.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=258388&p_lang=2	ru_RU
dc.description.abstract	Bulletin of TICMI	ru_RU
dc.description.abstract	In this paper we present the results of our investigation of displaying of seis-mic activity in variations of both the electromagnetic (EM) field and the basic ionospheric characteristics. The 3D case is considered taking into account the effects of weak nonlinearity, dispersion and dissipation in medium, that allows us to obtain more accurate results for both the near and far zones from the earthquake epicenter. In study of the seismic response in the EM field, it is shown that a precursor arises ahead the front of seismic wave, its amplitude decreases exponentially with distance. In case of a single compression pulse, the precursor is negative, and its amplitude depends on the medium conductiv-ity and the parameters of the wave. With increasing conductivity, the amplitude of precursor increases, and its characteristic scale decreases. Regarding the response at ionospheric heights, the seismo-ionospheric post-effects have been studied, which are of great interest, in particular, for a better understanding of relationships in the system «solid Earth – atmosphere – ionosphere« and for identification of seismically caused oscillations in the spectrum of the ionospheric fluctuations, etc. The effect of the acoustic impulse caused by the Rayleigh wave on the ionosphere's neutral component near the epicenter is consid-ered, and further formation of the solitary IGWs and the TIDs, which are caused by them, at the F-layer heights in the far zone. The results obtained are in good agreement with the results of our radiophysical experiments during seismic events at the Russia Far East region.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	ionosphere	ru_RU
dc.subject	electromagnetic field	ru_RU
dc.subject	earthquake	ru_RU
dc.subject	precursor	ru_RU
dc.subject	Rayleigh wave	ru_RU
dc.subject	IGW and TID solitons	ru_RU
dc.title	Investigation of earthquake display in EM field and ionosphere	ru_RU
dc.type	Articles in international journals and collections	ru_RU