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| Titel |
Bayesian calibration of the Thermosphere-Ionosphere Electrodynamics General Circulation Model (TIE-GCM) |
| VerfasserIn |
S. Guillas, J. Rougier, A. Maute, A. D. Richmond, C. D. Linkletter |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1991-959X
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| Digitales Dokument |
URL |
| Erschienen |
In: Geoscientific Model Development ; 2, no. 2 ; Nr. 2, no. 2 (2009-09-28), S.137-144 |
| Datensatznummer |
250000542
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| Publikation (Nr.) |
 copernicus.org/gmd-2-137-2009.pdf |
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| Zusammenfassung |
| In this paper, we demonstrate a procedure for calibrating a complex computer
simulation model having uncertain inputs and internal parameters, with
application to the NCAR Thermosphere-Ionosphere-Electrodynamics General
Circulation Model (TIE-GCM). We compare simulated magnetic perturbations with
observations at two ground locations for various combinations of calibration
parameters. These calibration parameters are: the amplitude of the
semidiurnal tidal perturbation in the height of a constant-pressure surface
at the TIE-GCM lower boundary, the local time at which this maximises and the
minimum night-time electron density. A fully Bayesian approach, that
describes correlations in time and in the calibration input space is
implemented. A Markov Chain Monte Carlo (MCMC) approach leads to potential
optimal values for the amplitude and phase (within the limitations of the
selected data and calibration parameters) but not for the minimum night-time
electron density. The procedure can be extended to include additional data
types and calibration parameters. |
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