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The appearance of the electric currents during dipolarization of the Earth magnetic field lines
Abstract. The appearance of the currents in the ionosphere and magnetosphere of the Earth during the expansive phase of the substorm have been studied in this work. It has been shown that the formation of the field-aligned currents and westward Cowling currents in the ionosphere can be generated by dipolarization of the magnetic field lines. The model distribution of the plasma pressure balanced with the magnetic field during the growth phase of the substorm has been taken. The conditions of formation of the currents wedge have been obtained. In the work the density of the field-aligned currents in the midnight sector of the auroral ionosphere has been estimated within the adiabatic approach.
Keywords: magnetosphere, substorm, field-aligned currents, dipolarization
Printed reference: Volkov M.A., Romanova N.Yu. The appearance of the electric currents during dipolarization of the Earth magnetic field lines // Vestnik of MSTU. 2013. V. 16, No 1. P. 56-59.
Electronic reference: Volkov M.A., Romanova N.Yu. The appearance of the electric currents during dipolarization of the Earth magnetic field lines // Vestnik of MSTU. 2013. V. 16, No 1. P. 56-59. URL: http://vestnik.mstu.edu.ru/v16_1_n51/56_59_volkov.pdf.
