Electric circuits of the disturbed magnetosphere-ionosphere system and their generators |
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| Authors: | V M Mishin A D Bazarzhapov U Sukhbaatar M Förster |
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| Institution: | 1.Institute of Solar-Terrestrial Physics, Siberian Branch,Russian Academy of Sciences,Irkutsk,Russia;2.Center of Astronomy and Geophysics,Mongolian Academy of Sciences,Ulaanbaatar,Mongolia;3.Helmholtz Centre Potsdam—German Research Centre for Geosciences,Potsdam,Germany |
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| Abstract: | The simplest theory of electric circuits is applied to analysis of the observed large-scale electric field and currents in
a disturbed magnetosphere-ionosphere system. Maps of distribution of field-aligned currents (FACs) obtained from ground-based
magnetic measurements using the original magnetogram inversion method (MIT) and measurements by satellites were used. A method
for circuit determination according to the data of such maps based on the detection of spatial R.N inhomogeneities in each
of three Iijima and Potemra FAC zones is proposed. The results of the new method are used to describe some electric field
and current generators not known before, new types of current systems in tail lobes and plasma sheet, and the formation and
dynamics of new types of three-dimensional systems with auroral electrojets and meridional ionospheric Pedersen current, which
have not been paid due attention in the literature. |
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