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| Titel |
Electron radiation belt data assimilation with an ensemble Kalman filter relying on the Salammbô code |
| VerfasserIn |
S. A. Bourdarie, V. F. Maget |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 30, no. 6 ; Nr. 30, no. 6 (2012-06-08), S.929-943 |
| Datensatznummer |
250017233
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| Publikation (Nr.) |
 copernicus.org/angeo-30-929-2012.pdf |
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| Zusammenfassung |
| In this study we implement a data assimilation tool using a 3-D radiation
belt model and an ensemble Kalman filter approach. High time and space
reanalysis of the electron radiation belt fluxes is obtained over the time
period 5 October to 25 October 1990 by combining sparse
observations with the Salammbô 3-D model in an optimal way. The
convergence of the ensemble Kalman filter is analyzed carefully. The risk of
using a biased physical model is discussed and relative consequences are
highlighted. Finally, a validation against CRRES data and major improvements
compared to pure physics based model are presented. |
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