Observations of low-frequency oscillations of the ionospheric electric field over fractures in the Earth’s crust

Lyakhov, A. N.; Zetser, Yu. I.

doi:10.1134/s1028334x0804020x

Cited by 1 publication

(1 citation statement)

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“…The hypothesis of Lyakhov and Zezer (2008) who supposed that the disturbances in the ionospheric elec tric field detected by the DE 2 satellite are controlled by the geological and tectonic structure of the Tunka valley and by predominant propagation of electromagnetic waves exactly over this region needed to be experimen tally validated. The synchronous pulses of the magnetic field detected by the satellite based and ground based magnetometers in a frequency band of 100 Hz to 2 kHz confirm the existence of LAIC and, at the same time, raise a question concerning their origin, direction, and conditions of propagation.…”

Section: Variations Of the Electromagnetic Fields 359mentioning

confidence: 99%

Variations of the electromagnetic fields and ionospheric parameters in the Baikal Rift Zone

Гаврилов

Zetzer

Kurkin

et al. 2012

Izv., Phys. Solid Earth

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International audienceVariations in the geomagnetic and electric fields and variations of the total electron content (TEC) of the ionosphere recorded in the Baikal Rift Zone (BRZ) during the expeditions in 2009 and 2010 are analyzed. Synchronous bursts in the geomagnetic field on the ground and in the ionosphere, which are caused by propagation of electromagnetic disturbances (spherics) generated by the remote lightning discharges, are revealed. The analysis of the occurrence frequency of the electromagnetic disturbances at an altitude of ∼700 km shows that there is a preferred region of predominant propagation of these disturbances from the Earth-ionosphere waveguide to the upper ionosphere. When the ionospheric penetration point moves through this preferred region, the frequency spectrum of TEC variations changes, and the northern boundary of the region of spectral alteration is located at ∼54°N. The bursts in TEC that map on the zones of the main faults in the Tunka valley are identified. The results probably suggest a relation between the electromagnetic phenomena in the ionosphere and the structures in the lithosphere

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Section: Variations Of the Electromagnetic Fields 359mentioning

confidence: 99%