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电信和无线电工程
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN 打印: 0040-2508
ISSN 在线: 1943-6009

卷:
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电信和无线电工程

DOI: 10.1615/TelecomRadEng.v64.i9.60
pages 771-791

Analysis Schumann Resonance Parameter Variations Associated with Solar Proton Events

A. V. Shvets
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkiv 61085, Ukraine
G. G. Belyaev
Institute for Terrestrial Magnetism, Ionosphere and Radio Propagation (IZMIRAN), Troitsk, Moscow region, 142190, Russia
A. Yu. Schekotov
Schmidt Institute of Earth Physics, Russian Academy of Sciences, 10 B. Gruzinskaya St., Moscow, 123995, Russia

ABSTRACT

Detailed analysis is performed of the spectra of natural electromagnetic field in the frequency band of Schumann resonance (SR) during the strongest solar proton events (SPE) from 2000 to 2003. The decline of the peak resonance frequencies associated with SPE was confirmed by simultaneous observations at two globally separated observatories (Karelia and Kamchatka). Effects are substantially different when observed in various field components. The anomalous excursions of the peak resonance frequencies are explained in the framework of propagation theory of ELF radio waves. These changes originate owing to polar non-uniformities in the lower ionosphere.


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