This paper uses retrospective cost parameter estimation (RCPE) to estimate parameters in the global ionosphere–thermosphere model (GITM). Using GITM as an executable simulation code, RCPE estimates two thermal-conductivity coefficients along with the temperature exponent in the thermal-conductivity model. These parameter estimates are obtained by using various combinations of simulated measurements of the global minimum, global maximum, and mean neutral density at a fixed altitude. RCPE is implemented within recursive least squares using both constant-rate forgetting and variable-rate forgetting. The goal of this comparison is to assess the effect of variable-rate forgetting on the convergence of the parameter estimates. The contribution of the paper is thus an investigation of the effectiveness of RCPE for parameter estimation in GITM.


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    Titel :

    Estimation of Thermal-Conductivity Coefficients in the Global Ionosphere–Thermosphere Model


    Beteiligte:
    Goel, Ankit (Autor:in) / Ponder, Brandon (Autor:in) / Ridley, Aaron (Autor:in) / Bernstein, Dennis S. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2020-05-08


    Format / Umfang :

    8 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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