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Relationships Between Auroral and Magnetic Activity in the Polar Cusp/Cleft

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Electromagnetic Coupling in the Polar Clefts and Caps

Part of the book series: NATO ASI Series ((ASIC,volume 278))

Abstract

Both large- and small-scale dynamics of the cusp aurora and cusp electrodynamics are discussed in connection with electric currents, electric field and ground magnetic perturbations. Sources of the field-aligned electric currents in the dayside polar cusp are most likely located within the boundary layers, both the frontside low latitude and the magnetotai1, where induction currents due to relative motion between the sheath plasma and the magnetosphere produces space charges. The importance of the magnetospheric magnetic field model in the study of the cusp phenomena, especially their magnetospheric source regions, is noted.

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Authors and Affiliations

  1. Geophysics Research Laboratory, University of Tokyo, Tokyo, 113, Japan

    Takasi OGUTI

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  1. Takasi OGUTI
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Editors and Affiliations

  1. Department of Physics, University of Oslo, Box 1048, Blindern, 0316, Oslo 3, Norway

    P. E. Sandholt

  2. Department of Physics, University of Oslo, Oslo, Norway

    A. Egeland

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© 1989 Kluwer Academic Publishers

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OGUTI, T. (1989). Relationships Between Auroral and Magnetic Activity in the Polar Cusp/Cleft. In: Sandholt, P.E., Egeland, A. (eds) Electromagnetic Coupling in the Polar Clefts and Caps. NATO ASI Series, vol 278. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0979-3_18

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  • DOI: https://doi.org/10.1007/978-94-009-0979-3_18

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-6929-8

  • Online ISBN: 978-94-009-0979-3

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