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| Titel |
Substorm and magnetic storm effects on the cross-tail current sheet |
| VerfasserIn |
Elizabeth Davey, Mark Lester, Steven Milan, Robert Fear |
| Konferenz |
EGU General Assembly 2011
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 13 (2011) |
| Datensatznummer |
250051563
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| Zusammenfassung |
| We present a study of the dynamics of the mid-tail region of the current sheet. We have
employed data from the Cluster spacecraft from 2001 to 2007. Specifically, we have taken
fluctuations of the x component of the magnetic field (Bx) measured by Cluster 3 around
Bx=0 to indicate that the current sheet is in motion. The effects of substorm and magnetic
storm activity on current sheet motion were investigated using the AE index and SYM-H
data. The crossings of the current sheet made by the spacecraft for each orbit were studied as
a whole, allowing a comparison of orbits and the intrinsic geomagnetic conditions. Results
indicate that the current sheet is more dynamic during orbits with greater than average
magnetic activity, as evidenced by the AE index, although there is also some evidence of a
stabilisation of the current sheet due to an enhanced ring current during magnetic storms. |
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