Analysis of mathematical models of quasi-stationary electric field penetration from Earth's surface to the ionosphere : доклад, тезисы доклада

Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций

Конференция: PROBLEMS OF GEOCOSMOS; Saint-Petersburg; Saint-Petersburg

Год издания: 2016

Ключевые слова: electric field, lithosphere, atmosphere, ionosphere, earthquake precursor, mathematical simulation

Аннотация: A quasi-stationary model of electric fields and currents in the conductor that includes the Earth's atmosphere and ionosphere is used to analyze well known models of the lithosphere-ionosphere coupling. The steady state electroconductivity problem is numerically solved. We set the input parameters which look typical for moderate earthquakes like a vertical electric field of about 100 V/m near ground with typical horizontal scale of a few hundred km. The result electric field in the ionosphere in such a case does not exceed 1 V/m in frame of our model. This means that the penetration of a large scale electric field from ground into the ionosphere cannot be a physical process which creates ionospheric precursors of earthquakes which are observed in range of a few mV/m. This conclusion has been previously published, but it appeared contrary to the new mathematical models by other authors. Here we analyze these models and show that their authors used inappropriate assumptions or simplifications which significantly distort the results. At the same time the new version of the model Kim, Liu, Hegai, 2015 confirms our conclusion.

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Номера страниц: 146-152

Издатель: ООО "Издательство ВВМ"

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