AbstractCurrent first-principles global models of the coupled thermosphere–ionosphere (T–I) system use grids that are too coarse to simulate the mesoscale and small-scale structures that occur in this complex system. These small-scale and mesoscale structures have a great effect on global-scale neutral and plasma distributions and have important consequences for daily space weather. In this paper, we present a new first-principles, high-resolution, T–I nested grid (TING) polar cap model that incorporates multiple nesting levels and two-way interaction. The TING model simulation of the electron densities and temperatures demonstrates the importance of high spatial resolution. It is found that both the mid-latitude electron density trough and its associated dawn electron temperature peak are more pronounced and structured in the nested grid than in the coarse grid. Using the TING model to simulate ionospheric F2 region electron density variations with geomagnetic activity and universal time (UT) is also discussed.


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    Titel :

    High-resolution, coupled thermosphere–ionosphere models for space weather applications


    Beteiligte:
    Wang, W. (Autor:in) / Burns, A.G. (Autor:in) / Solomon, S. (Autor:in) / Killeen, T.L. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 36 , 12 ; 2486-2491


    Erscheinungsdatum :

    2003-11-19


    Format / Umfang :

    6 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





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