Ionospheric conductivity effects on the electric field penetration from the atmosphere into the ionosphere
Abstract
Many papers are devoted to mathematical simulation of the atmospheric electric field. In row with electric fields near thunderstorm clouds the processes of ionosphere-lithosphere coupling are under analysis. The aim of these researches is to use satellites for monitoring of earthquakes precursors. There exist data on the electric field variations near ground before earthquakes. It is interesting to know if these variations can be measure by satellites. The results of the simulations differ much in spite of that the same steady state model of electric conductivity is used. The methods of the electric current closure by the ionosphere are principally different. Some upper boundary condition is used in our model that follows from the charge conservation law for the ionosphere with infinite field-aligned conductivity. The alternative condition in additionally neglects Pedersen conductivity above 90 km. One more alternative condition additionally regards the Pedersen conductivity above 150 km as infinity. These conditions follow from ours if the integrated Pedersen conductivity of the ionosphere equals zero or infinity. Here we compare the results of the models and analyze the error of our approximation of the ionospheric conductor with 2-D model.
- Publication:
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In: Proceeding of International Conference on "Solar-Terrestrial relations and physics of earthquakes precursors". Petropavlovsk-Kamchatsky. 2010
- Pub Date:
- January 2011
- Bibcode:
- 2011strp.conf...57D
- Keywords:
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- Earthquakes Precursors;
- Ionosphere-Lithosphere Coupling