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    A study of the magnetosphere-ionosphere coupling processes

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    Zhu_L_1990.pdf
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    Author
    Zhu, Lie
    Chair
    Kan, J. R.
    Keyword
    Physics, Atmospheric Science
    Plasma physics
    Metadata
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    URI
    http://hdl.handle.net/11122/9360
    Abstract
    Magnetosphere-ionosphere (M-I) coupling processes are studied by using numerical modeling. An M-I coupling model of substorms on the ionospheric recombination time scale (tens of seconds) is developed. The model is two-dimensional (2-D) and time-dependent from which several signatures of substorms can be obtained and understood. The model is then extended to northward interplanetary magnetic field (IMF) conditions to study the effects of the M-I coupling on the high-latitude convection. Based on the model results, a mechanism for the origin of distorted two-cell ionospheric convection is proposed. The ionospheric and ground signatures of multiple field-aligned current sheets originating from dayside flux transfer events have been modeled. The interaction between Alfven waves and field aligned potential drops is studied by using a local model.
    Description
    Dissertation (Ph.D.) University of Alaska Fairbanks, 1990
    Date
    1990
    Type
    Dissertation
    Collections
    Physics

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