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| Titel |
A perturbation of DC electric field caused by light ion adhesion to aerosols during the growth in seismic-related atmospheric radioactivity |
| VerfasserIn |
V. M. Sorokin, A. K. Yaschenko, M. Hayakawa |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 7, no. 1 ; Nr. 7, no. 1 (2007-01-30), S.155-163 |
| Datensatznummer |
250004337
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| Publikation (Nr.) |
 copernicus.org/nhess-7-155-2007.pdf |
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| Zusammenfassung |
| The influence of variations in conductivity and external electric current
variations in the lower atmosphere on DC electric field over a seismic
region is investigated. The external current is formed with the occurrence
of convective upward transport of charged aerosols and their gravitational
sedimentation in the atmosphere. This effect is related with the occurrence
of ionization source due to seismic-related emanation of radon and other
radioactive elements into the lower atmosphere. An increase in atmosphere
radioactivity level results in the appearance of additional sources of
ionization, and altitude dependence of the ion formation rate is calculated.
Ionization source varies the atmospheric conductivity and the external
current through appearance of ions with equilibrium number density and their
adhesion to aerosols. We have calculated the perturbation of conductivity
and external electric current as a function of altitude. Variation of
conductivity and external current in the lower atmosphere leads to a
perturbation of electric current which flows in the global atmosphere-ionosphere
circuit. Finally, perturbations of DC electric field both on the
Earth's surface and in the ionosphere are estimated. |
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