Abstract During the period October 29–31, 2003, geosynchronous magnetopause crossings (GMC) have been identified based on the magnetic data of the GOES series spacecraft and plasma data of the LANL series spacecraft. It is shown that most of the time the size of the dayside magnetosphere was highly decreased under the effect of very high pressure associated with high velocities and densities of the solar wind plasma, as well as high negative values of the Bz component of the interplanetary magnetic field (IMF). For tens of hours the subsolar magnetopause was deep inside the geosynchronous orbit. During the main phase and at the maximum of the strong geomagnetic storms that occurred in the period under consideration, the dayside magnetosphere was characterized by a strong dawn-dusk asymmetry, so that its size in the postnoon sector considerably exceeded the size in the pre-noon sector. The geomagnetic disturbances in the morning on October 30 and 31, 2003 were accompanied by global magnetospheric pulsations with periods of 5–10 min and high amplitude (up to 0.8 RE).


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    Title :

    Geosynchronous magnetopause crossings on October 29–31, 2003


    Contributors:

    Published in:

    Publication date :

    2004




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

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



    Geosynchronous magnetopause crossings on October 29–31, 2003

    Dmitriev, A. V. / Suvorova, A. V. | Springer Verlag | 2004



    Solar Wind Magnetic Field and Pressure During Magnetopause Crossings at Geosynchronous Orbit

    Kuznetsov, S. N. / Suvorova, A. V. / International Council of Scientific Unions; Committee on Space Research; Scientific Commission D | British Library Conference Proceedings | 1998