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Zhurnal Tekhnicheskoi Fiziki, 2021, Volume 91, Issue 1, Pages 82–88
DOI: https://doi.org/10.21883/JTF.2021.01.50277.119-20 (Mi jtf5103) 		 
Acoustics, Acoustoelectronics

Quasi-stationary approximation in the problem of excitation of low-frequency electromagnetic fields in lithosphere

E. D. Tereshchenkoa, P. E. Tereshchenkob

a Polar Geophysical Institute, Apatity, Murmanskaya obl.
b St. Petersburg Branch of the Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation, Russian Academy of Sciences
Full-text PDF (178 kB)
DOI: https://doi.org/10.21883/JTF.2021.01.50277.119-20
Abstract: Excitation of electromagnetic field at ultralow, extremely low, and lower frequencies by a horizontal grounded antenna in a two-layer medium is considered. Approximate analytical formulas are derived to describe field evolution in the low-frequency range. Accuracy of the quasi-stationary approximation is analyzed. Substitution of the impedance of a plane wave that is normally incident on the interface for a real surface impedance is estimated. Frequency limits of the approximate approach in the estimation of the Earth conductivity are determined for several experiments performed on the Kola Peninsula in the framework of the FENIСS-2014 and FENICS-2019 International Projects.
Keywords: ELF, radio waves propagation, impedance, electromagnetic field, conductivity.
Funding agency Grant number
Russian Foundation for Basic Research 19-05-00823
This work was supported by the Russian Foundation for Basic Research (project no. 19-05-00823).
Received: 03.04.2020
Revised: 13.05.2020
Accepted: 26.05.2020
English version:
Technical Physics, 2021, Volume 66, Issue 1, Pages 77–83
DOI: https://doi.org/10.1134/S1063784221010205
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: E. D. Tereshchenko, P. E. Tereshchenko, “Quasi-stationary approximation in the problem of excitation of low-frequency electromagnetic fields in lithosphere”, Zhurnal Tekhnicheskoi Fiziki, 91:1 (2021), 82–88; Tech. Phys., 66:1 (2021), 77–83
Citation in format AMSBIB
\Bibitem{TerTer21}
\by E.~D.~Tereshchenko, P.~E.~Tereshchenko
\paper Quasi-stationary approximation in the problem of excitation of low-frequency electromagnetic fields in lithosphere
\jour Zhurnal Tekhnicheskoi Fiziki
\yr 2021
\vol 91
\issue 1
\pages 82--88
\mathnet{http://mi.mathnet.ru/jtf5103}
\crossref{https://doi.org/10.21883/JTF.2021.01.50277.119-20}
\elib{https://elibrary.ru/item.asp?id=44870292}
\transl
\jour Tech. Phys.
\yr 2021
\vol 66
\issue 1
\pages 77--83
\crossref{https://doi.org/10.1134/S1063784221010205}
\scopus{https://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-85102014520}
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