AbstractWe examined two consecutive plasma sheet oscillation and dipolarization events observed by Cluster in the magnetotail, which are associated with a pseudo-breakup and a small substorm monitored by the IMAGE spacecraft. Energy input from the solar wind and an associated enhancement of the cross-tail current lead to current sheet thinning and plasma sheet oscillations of 3–5min periods, while the pseudo-breakups occur during the loading phase within a spatially limited area, accompanied by a localized dipolarization observed by DSP TC1 or GOES 12. That is, the so-called “growth phase” is a preferable condition for both pseudo-breakup and plasma sheet oscillations in the near-Earth magnetotail. One of the plasma sheet oscillation events occurs before the pseudo-breakup, whereas the other takes place after pseudo-breakup. Thus there is no causal relationship between the plasma sheet oscillation events and pseudo-breakup. As for the contribution to the subsequent small substorm, the onset of the small substorm took place where the preceding plasma sheet oscillations can reach the region.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Plasma sheet oscillations and their relation to substorm development: Cluster and double star TC1 case study


    Contributors:
    Takada, T. (author) / Nakamura, R. (author) / Asano, Y. (author) / Baumjohann, W. (author) / Runov, A. (author) / Volwerk, M. (author) / Zhang, T.L. (author) / Vörös, Z. (author) / Keika, K. (author) / Klecker, B. (author)

    Published in:

    Advances in Space Research ; 41 , 10 ; 1585-1592


    Publication date :

    2007-04-03


    Size :

    8 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English