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| Titel |
Interplanatary shock interaction with the magnetosphere: Observation vs MHD model |
| VerfasserIn |
Z. Nemecek, J. Safrankova, A. Samsonov |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250025543
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| Zusammenfassung |
| In this presentation, we try to find a method to classify the different discontinuities that are created as a result of the interaction of an IP shock with the bow shock. The literature suggests that a fast forward shock passing through the bow shock would generate a train of new discontinuities that differ along the Sun-Earth line. We show one example where data measured by Wind is used as input to a global BATS-R-US MHD model. Since discontinuities reflected from the magnetopause and/or from some internal boundary (plasmapause) or even from the ionosphere can play an important role in the interaction process, we use two BATS-R-US runs – with an artificial inner boundary at 6 RE and with the RICE ionospheric model embedded into BATSR-U-S. The comparison of results with the Geotail observations shows a good qualitative agreement but we conclude that an identification of different discontinuities is possible only with MHD model support. |
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