Abstract The substorm on March 12, 1991 is studied using the data of ground-based network of magnetometers, all-sky cameras and TV recordings of aurora, and measurements of particle fluxes and magnetic field onboard a satellite in the equatorial plane. The structure of substorm activity and the dynamics of auroral ions of the central plasma sheet (CPS) and energetic quasi-trapped ions related to the substorm are considered in the first part. It is shown that several sharp changes in the fluxes and pitch-angle distribution of the ions which form the substorm ion injection precede a dipolarization of the magnetic field and increases of energetic electrons, and coincide with the activation of aurora registered 20° eastward from the satellite. A conclusion is drawn about different mechanisms of the substorm acceleration (injection) of electrons and ions.


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    Titel :

    Studies of the substorm on March 12, 1991: 1. Structure of substorm activity and auroral ions


    Beteiligte:
    Lazutin, L. L. (Autor:in) / Kozelova, T. V. (Autor:in) / Meredith, N. P. (Autor:in) / Danielides, M. (Autor:in) / Kozelov, B. V. (Autor:in) / Jussila, J. (Autor:in) / Korth, A. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2007




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :

    Klassifikation :

    BKL:    55.60 Raumfahrttechnik / 39.00 Astronomie: Allgemeines / 50.93 Weltraumforschung
    Lokalklassifikation TIB:    770/3520/8000



    Studies of the substorm on March 12, 1991: 1. Structure of substorm activity and auroral ions

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    Studies of substorm on March 12, 1991: 2. Auroral electrons. Acceleration, injection, and dynamics

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