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| Titel |
Predictive model of magnetosheath plasma flow and its validation against Cluster and THEMIS data |
| VerfasserIn |
J. Soucek, C. P. Escoubet |
| 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 (2012-06-12), S.973-982 |
| Datensatznummer |
250017236
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| Publikation (Nr.) |
 copernicus.org/angeo-30-973-2012.pdf |
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| Zusammenfassung |
| An analytical model of magnetosheath plasma flow is described and compared
with a large dataset of magnetosheath ion flow velocity measurements from
Cluster and THEMIS spacecraft. The model is based on previous works by
Kobel and Flückiger (1994) and Génot et al. (2011) and has been modified to overcome the
restrictions of these models on the shape of model magnetopause and bow
shock. Our model is compatible with any parabolic bow shock model and
arbitrary magnetopause model. The model is relatively simple to implement and
computationally inexpensive, and its only inputs are upstream solar wind
parameters. Comparison with observed data yields a good correspondence:
median error in the direction of flow velocity is comparable with the
instrumental error, and flow magnitude is predicted with a reasonable accuracy
(relative error in flow speed was less than 25% for 86.5% of observations). |
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