Abstract Two wave MHD populations are seen at collisionless shocks: precursor waves standing in the shock ramp which form an integral part of the shock and upstream waves which are usually attempting to propagate upstream but are carried back toward the shock by the solar wind flow. Both types of waves are observed at interplanetary shocks and planetary bow shocks. In general, interplanetary shocks are weaker than planetary shocks. The difficulty in studying interplanetary shocks is that the shock normal is hard to determine accurately but multiple spacecraft measurements are of some assistance in this regard. To study strong shocks we can use planetary bow shocks whose normal directions are constrained by geometry. Two types of multispacecraft studies have been used, closely spaced ones such as with ISEE-1 and -2 and more distantly separated ones such as with ISEE and UKS. These studies suggest that our paradigm for the evolution of large amplitude or “fully developed” turbulence needs some revision.


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    Titel :

    Multipoint measurements of upstream waves


    Beteiligte:
    Russell, C.T. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 8 , 9-10 ; 147-156


    Erscheinungsdatum :

    01.01.1989


    Format / Umfang :

    10 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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