Physics
Scientific paper
Nov 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994georl..21.2467m&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 21, no. 23, p. 2467-2470
Physics
Atmospherics, Auroral Zones, Earth Ionosphere, Electromagnetic Radiation, Extremely Low Frequencies, Spectrum Analysis, Wave Propagation, Dependence, Electromagnetic Fields, Magnetic Resonance, Noise Spectra, Resonant Frequencies
Scientific paper
This paper reports on some propagation effects occurring while the ionosphere consists of several layers. A few simple model problems are considered to show in which way this multi-layer structure can yield a new set of ELF resonance phenomena. The resonances appear in the space between the Earth and layer interfaces or inside the layers and are liable to give rise to peaks or minima in the frequency dependencies of ELF electomagnetic fields both for the cosmic and terrestrial sources. Calculations have been made for the real ionospheric models and distant Earth's sources have shown that such a mechanism can explain some experimental data including the effect of 'Evening Ionosphere Radiation' by Schecotov and Molchanov (1985).
Hayakawa Masahiko
Molchanov Oleg A.
Nickolaenko Alexander P.
Rafalsky V. A.
Schecotov Yu. A.
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