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ISSN 2415-3400 (Online)
ISSN 1028-821X (Print)

SHIFT OF ANTIPODE MAXIMUM OF ELECTRIC FIELD IN THE RESONATOR THE EARTH–IONOSPHERE CAVITY CAUSED BY DAY–NIGHT NON-UNIFORMITY

heading: 
RADIOWAVE PROPAGATION, RADIOLOCATION AND REMOTE SENSING
Galyuk, YP, Nikolaenko, AP, Hayakawa, M
Organization: 

Saint-Petersburg State University
Universitetskii prospekt 35, Petergof, Saint Petersburg, Russia 198504
O. Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Sciences of Ukraine
12, Proskura st., Kharkov, 61085, Ukraine
Hayakawa Institute of Seismo Electromagnetics Co. Ltd. (HISEM),
508 Incubation center of the University of Electro-Communications (UEC)
Japan, Tokyo

E-mail: j.galuk@spbu.ru; sasha@ire.kharkov.ua; hayakawa@hi-seismo-em.jp
https://doi.org/10.15407/rej2017.02.028
Language: Russian
Abstract: 

Accounting for the actual structure of the lower ionosphere in the problems of global electromagnetic (Schumann) resonance is an important and urgent task. The paper analyzes an impact of deviations in the vertical profile of the atmosphere conductivity at the night and the day sides of the planet on the spatial distribution of electromagnetic field in the Schumann resonance band. The cavity characteristics depend on the conductivity profiles and are accounted for at the day and the night sides by using the full wave solution method. The problem in non-uniform cavity is solved with the help of 2D telegraph equation. The shift of the maximum amplitude of the electric field component from the source geometric antipode is demonstrated at several frequencies for different locations of the source, and in the models of smooth and sharp day–night transition. We demonstrate that the day-night non-uniformity is able to shift the antipode maximum of the vertical electric field from the source geometric antipode of the center towards the center of the day hemisphere by a distance reaching 300 km.
Keywords: schumann resonance, spatial distribution of field nearby the source antipode in the spherical cavity, vertical profile of atmosphere conductivity

Manuscript submitted 13.03.2017
PACS: 93.85.Bc; 93.85.Jk; 94.20.Cf; 94.20.ws
Radiofiz. elektron. 2017, 22(2): 28-40
Full text (PDF)

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