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    Experimental Study of the Plasmasphere Boundary Layer Using MAGION 5 Data

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    Authors
    Kotova, G.
    Verigin, M.
    Lemaire, J.
    Pierrard, V.
    Bezrukikh, V.
    Smilauer, J.
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    Discipline
    Physical sciences
    Subject
    plasmasphere
    boundary layer
    cold plasma density
    geomagnetic activity
    Audience
    Scientific
    Date
    2018
    Metadata
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    Description
    The in situ cold plasma measurements onboard MAGION 5 were carried out with very good time resolution, and this permitted to analyze thin plasmasphere boundary layer (PBL) near the plasmapause. In this layer the plasma density N is decreasing exponentially with L: N~exp((LPP − L)/WB), where WB corresponds to the characteristic width of the PBL, the distance in L within which the density varies by a factor of e, and LPP is the position of the plasmapause. The density in the boundary layer is inversely proportional to the volume of the unit magnetic flux tube, whereas its width is proportional to the volume of magnetic flux tube. The characteristic width of the PBL linearly depends on the time elapsed since the most recent maximum value of KP. Empirical relation for the dependence of the PBL width on most recent maximum value of KP and on the lapse time between this maximum and the plasmapause observations is proposed.
    Citation
    Kotova, G.; Verigin, M.; Lemaire, J.; Pierrard, V.; Bezrukikh, V.; Smilauer, J. (2018). Experimental Study of the Plasmasphere Boundary Layer Using MAGION 5 Data. , Journal of Geophysical Research: Space Physics, Vol. 123, Issue 2, 1251-1259, DOI: 10.1002/2017JA024590.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/6886
    doi: http://dx.doi.org/10.1002/2017JA024590
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
    Links
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