Short-circuit in the magnetosphere-ionosphere electric circuit |
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| Authors: | V M Mishin Z Pu V V Mishin S B Lunyushkin |
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| Institution: | 1. Institute of Solar-Terrestrial Physics of the Siberian Branch of the Russian Academy of Sciences, Irkutsk, Russia
2. Peking University, Beijing, China
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| Abstract: | We describe, for the first time, the following peculiarities of a substorm in the polar ionosphere and magnetotail including its distant lobe: (1) coherent variations in mesoscale vortices and in field-aligned currents of the magnetospheric-ionospheric (M-I) system; (2) instability of short—circuiting of currents in ionospheric part of the M-I system; (3) coexistence of Y- and X-currents as necessary elements of the M-I system. These new elements for the substorm scenario are principally relevant to understanding of basic processes in the mid-/near tail. |
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