Interconnection of the Ionosphere Plasma Parameters and Electromagnetic Phenomena with Lithosphere Structures in Baikal Rift Zone
Abstract
Two expeditions to the Baikal rift zone have been spent in 2009 and 2010 to investigate and confirm data for lithosphere - ionosphere interaction. The stimulus for investigations organization was the fact of the ionosphere electric field perturbations revealed over this zone earlier. They were attributed to presence of the Earth crust faults and not connected with seismic activity. The analysis of variations of the ground and ionospheric geomagnetic field and the TEC in Baikal rift zone are presented. Synchronous disturbances of the ground magnetic field and the magnetic field in the ionosphere, caused by sferics propagation from remote lighting discharges were detected. The analysis of number of sferics registration at the height of 700 km by Demeter satellite has shown that there is an area of their intensive propagation through the upper boundary of earth-ionosphere wave guide. The analysis of the frequency spectrum of TEC variations shows that it changes when ionospheric point moves from north to south, and the latitude of this change coincides with the northern boundary of the region of sperics primary propagation. We detected also TEC jerks correlated with perturbations of the ground electric field. The footprints of these TEC jerks occur on the main faults in the south-west part of Baikal rift zone. These data may consider as a new confirmation of interconnection of the ionosphere plasma and electromagnetic phenomena with lithosphere structures.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2012
- Bibcode:
- 2012AGUFMAE23A0307G
- Keywords:
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- 0639 ELECTROMAGNETICS / Nonlinear electromagnetics;
- 0654 ELECTROMAGNETICS / Plasmas;
- 0689 ELECTROMAGNETICS / Wave propagation;
- 0925 EXPLORATION GEOPHYSICS / Magnetic and electrical methods