Abstract Our current understanding of the thermal plasma in the atmosphere and its coupling to the ionosphere is reviewed. Existing models appear adequate to explain the gross behavior of the cold thermal plasma, but there remain some vexing problems. Notably, (1) why does the density in flux tubes appear to saturate at lower values than are predicted theoretically, (2) what causes the sunset peak in measured Te, and (3) why does the equatorial plasmapause signature differ in latitude from the ionosphere signatures. The more difficult problem of what happens during the early stages of refilling after a magnetic storm, when the high altitude plasma is likely to be supersonic and collisionless, has received much attention, but the results are not definite. A number of papers have dealt with the interaction of supersonic counterstreaming fluxes and there are now models that can handle the transition from supersonic to subsonic flows although the transition from a collisionless to a collision-dominated plasma remains difficult to deal with.


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    Titel :

    Models of the plasmaspheric thermal plasma distribution


    Beteiligte:
    Richards, P.G. (Autor:in) / Torr, D.G. (Autor:in) / Horwitz, J.L. (Autor:in) / Torr, M.R. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1987-01-01


    Format / Umfang :

    11 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Models of the plasmaspheric thermal plasma distribution

    Richards, P. G. / Torr, D. G. / Horwitz, J. L. et al. | NTRS | 1986





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