Phase variations of ULF magnetic field in the region of fault tectonics

Tereshchenko, E. D.; Poluyanov, S. V.; Grigor’ev, V. F.; Tereshchenko, P. E.; Sidorenko, A. E.

doi:10.1134/s1069351312070087

Cited by 1 publication

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“…The ELF signals were generated by the specialized ELF facility located on the Kola Peninsula. The facility antenna has the form of a grounded horizontal electric dipole oriented in the latitudinal direction [Tereshchenko et al, 2012;Bashkuev et al, 2003] and generates quasi-monochromatic signals in the frequency band of 81-84 Hz with constant output power.…”

Section: Measurementsmentioning

confidence: 99%

Effect of the total solar eclipse of 20 March 2015 on the ELF propagation over high‐latitude paths

Tereshchenko

Sidorenko

Tereshchenko

et al. 2015

Geophysical Research Letters

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Propagation of the artificial electromagnetic waves with frequency of 82 Hz in the Earth‐ionosphere waveguide was observed during the solar eclipse on both partially and totally obscured high‐latitude paths with a length of 450–1200 km. Field excitation was monitored by the reference measurements in the near zone of the transmitter, which are free of the ionospheric influence. It is found that the amplitude of the field at the remote points varied depending on the solar illumination and solar elevation angle. We suppose that this effect was probably caused by the increase in the effective height of the ionospheric D layer, just as it was previously observed in VLF. The obtained results demonstrate the response of the propagating extremely low frequency (ELF, 3–300 Hz) wave to the change in the ionospheric boundary. This effect has been for the first time observed in this frequency range during a total solar eclipse.

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Section: Measurementsmentioning

confidence: 99%