Тип публикации: статья из журнала
Год издания: 2018
Идентификатор DOI: 10.1029/2018JA025228
Ключевые слова: lithosphere-atmosphere-ionosphere coupling, seismogenic electric currents
Аннотация: Seismogenic models have been recently proposed to explain precursors before earthquakes occurrences. Those models refer to physical processes linking the lithosphere, the atmosphere, and the ionosphere. We analyze in this work the curl-free current model describing the current flow from the lithosphere to the ionosphere through theПоказать полностьюatmosphere. We use a numerical simulation based on the finite element method to derive the current between the ground and the ionosphere. We have shown that the curl-free approximation of the atmospheric current density leads to significant and unpredictable distortions of the solutions of the electrical conductivity. Hence, it incorrectly expands the ionospheric disturbed region associated to lithospheric currents. It is shown that horizontally homogeneous vertical underground external currents cannot create currents from ground to the atmosphere.
Журнал: JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
Выпуск журнала: Vol. 123, Is. 5
Номера страниц: 4290-4297
ISSN журнала: 21699380
Место издания: WASHINGTON
Издатель: AMER GEOPHYSICAL UNION