Change of ionospheric plasma parameters under the influence of electric field which has lithospheric origin and due to radon emanation

Rapoport, Yuriy; Grimalsky, V.; Hayakawa, Masashi; Ivchenko, V. N.; Juarez-R., D.; Koshevaya, S.; Gotynyan, O.E.

doi:10.1016/j.pce.2003.09.018

Cited by 39 publications

(19 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…During the earthquake, a decrease of the reflection height in the D region (around 50-90 km in ionospheric altitude) was observed, determined from VLF transmission anomaly . When the atmospheric conductivity near the ground increases by a factor of 2, the ionospheric perturbation can be explained in terms of the induction of the electrostatic field by (0.5-1.5)×10 3 V/m (Grimalsky et al, 2003;Rapoport et al, 2004). These values were within our estimation, and thus the pulses can trigger lowering the reflection altitude.…”

Section: The Atmospheric Electrical Conditionssupporting

confidence: 73%

“…Sorokin et al, 2001;Pulinets and Boyarchuk, 2004;Rapoport et al, 2004;Kamogawa, 2006;Pulinets, 2007). Many investigations have revealed the anomalous radon emanation out of the lithosphere into the near-earth atmosphere (King, 1978(King, , 1986 and the ground water (King, 1986;Igarashi et al, 1995), and United Nations Scientific Committee on the Effects of Atomic Radiation (2000) also reported the same things.…”

Section: Introductionmentioning

confidence: 96%

See 1 more Smart Citation

Anomalous radon emanation linked to preseismic electromagnetic phenomena

Omori

Yasuoka

Nagahama

et al. 2007

Nat. Hazards Earth Syst. Sci.

View full text Add to dashboard Cite

Abstract. Anomalous emanation of radon ( 222 Rn) was observed preceding large earthquakes and is considered to be linked to preseismic electromagnetic phenomena (e.g. great changes of atmospheric electric field and ionospheric disturbances). Here we analyze atmospheric radon concentration and estimate changes of electrical conditions in atmosphere due to preseismic radon anomaly. The increase of radon emanation obeys crustal damage evolution, following a powerlaw of time-to-earthquake. Moreover, the radon emanation decreases the atmospheric electric field by 40%, besides influencing the maximum strength of atmospheric electric field by 10 4 -10 5 V/m enough to trigger ionospheric disturbances. These changes are within the ranges observed or explaining electromagnetic phenomena associated with large earthquakes.

show abstract

Section: The Atmospheric Electrical Conditionssupporting

confidence: 73%

Section: Introductionmentioning

confidence: 96%

Anomalous radon emanation linked to preseismic electromagnetic phenomena

Omori

Yasuoka

Nagahama

et al. 2007

Nat. Hazards Earth Syst. Sci.

View full text Add to dashboard Cite

show abstract

“…Such electric fields have been reported from satellite observations both Correspondence to: V. M. Sorokin (sova@izmiran.ru) over seismic and hurricane regions (Chmyrev et al, 1989;Isaev et al, 2002). Possible connection of atmospheric electric field with seismic activity and the mechanisms of penetration of atmospheric field into the ionosphere were studied by Pierce (1976), Pulinets et al (1994), Molchanov and Hayakawa (1996), Boyarchuk et al (1998) and Rapoport et al, (2004). Sorokin and Yaschenko (2000) and Sorokin et al (2001a, b) have constructed the theoretical model of the electric field disturbances caused by the conductivity currents in the atmosphere and the ionosphere initiated by external electric current.…”

Section: Introductionmentioning

confidence: 99%

DC electric field amplification in the mid-latitude ionosphere over seismically active faults

Сорокин

Yaschenko

Chmyrev³

et al. 2006

Physics and Chemistry of the Earth, Parts A/B/C

Self Cite

View full text Add to dashboard Cite

HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. Abstract. DC electric field in the ionosphere above seismically active regions can be formed in a process of external current insertion into the atmosphere-ionosphere electric circuit. This current arises as a result of convective upward transport of charged aerosols and their gravitational sedimentation. Aerosols are injected into the atmosphere by soil gases intensified in the zones of active faults. In general case the horizontal distribution of injected aerosols in such zones is asymmetric. In this report we propose the method for computation of DC electric field generated in the ionosphere and the atmosphere by external electric current with arbitrary spatial distribution. Oblique magnetic field and the conjugate ionosphere effects are taken into consideration. Natural Hazards and Earth

show abstract

“…If the amplitude of the vertical atmospheric electric field induced by the surface charges is sufficiently large above a large area, say ca. 1 kV/m (Pulinets et al, 2000;Rapoport et al, 2004), then it may even disturb plasma in the ionosphere with detectable amplitudes. The amplitude of this field depends not only on the seismic wave amplitude but also on the underground water condition.…”

Section: Above the Ground Surfacementioning

confidence: 99%