25 November 2014 Variations of impulsive natural VLF signals passing over epicenters of earthquakes by observations in Yakutsk
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Proceedings Volume 9292, 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 92924J (2014) https://doi.org/10.1117/12.2075120
Event: 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 2014, Novosibirsk, Russian Federation
Abstract
For distant monitoring of disturbances in the lower ionosphere signals of low-frequency radio stations are often used. In particular, the method is used for investigation of ionospheric responses (disturbances) caused by seismic activity. As a variant of this method for the detection of seismic disturbances in the ionosphere one can use natural radio signals - an electromagnetic radiation of thunderstorm discharges (atmospherics). The examples of the effects of three earthquakes in the variations of average amplitude of atmospherics received in Yakutsk (φ = 62.1° N, λ = 129.7° E) were considered. The increase of signal amplitude for some days before the events can be considered as a precursor. It allows to used observations of impulse electromagnetic thunderstorm signals as one of possible means of distant monitoring of strong earthquakes.
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Vyacheslav V. Argunov, Vyacheslav V. Argunov, Viktor A. Mullayarov, Viktor A. Mullayarov, } "Variations of impulsive natural VLF signals passing over epicenters of earthquakes by observations in Yakutsk", Proc. SPIE 9292, 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 92924J (25 November 2014); doi: 10.1117/12.2075120; https://doi.org/10.1117/12.2075120
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