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

Конференция: Trigger Effects in Geosystems; Moscow; Moscow

Год издания: 2019

Идентификатор DOI: 10.1007/978-3-030-31970-0_48

Ключевые слова: global electric circuit, ionosphere, electric field, mathematical simulation

Аннотация: A model for the distribution of the ionospheric electric potential which drives the currents which close the global electric circuit is constructed. Only the internal electric fields and currents generated by thunderstorms are studied. The atmospheric conductivity profiles with altitude are empirically determined, and the topographПоказать полностьюy of the Earths surface is taken into account. A two-dimensional approximation of the ionospheric conductor is based on large conductivities along the geomagnetic field; the Pedersen and Hall conductivity distributions are calculated using the empirical models IRI, MSIS and IGRF. The maximum calculated voltage difference in the ionosphere under typical conditions for July, under low solar activity, at 19:00 UT, is about 85 V. In our model the potential has identical values at ionospheric conjugate points. With our more realistic ionospheric model, the electric fields are found to be an order of magnitude smaller than those of the well-known model of Hays and Roble.

Журнал: Trigger Effects in Geosystems

Номера страниц: 455-463

Издатель: Springer Nature

• Denisenko Valery (Institute of Computational Modelling, Russian Academy of Sciences, Siberian Branch)
• Rycroft Michael (CAESAR Consultancy, Cambridge CB3 9HW, UK Centre for Space, Atmospheric and Oceanic Science, Department of Electronic and Electrical Engineering,University of Bath)
• Harrison R. Giles (Department of Meteorology, University of Reading, Earley Gate, Reading RG6 6BB, UK Department of Electronic and Electrical Engineering, University of Bath)

• РИНЦ (eLIBRARY.RU)