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| Titel |
The distributions of the ring current: Cluster observations |
| VerfasserIn |
Qinghe Zhang, Malcolm Dunlop, Richard Holme, Emma Woodfield |
| Konferenz |
EGU General Assembly 2010
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250036576
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| Zusammenfassung |
| Extending previous studies, a full ringed distribution of the ring current has been obtained
from the four Cluster spacecraft observation around their perigee crossings in the solar
magnetic equatorial plane (SM coordinates), at times when the Cluster array has small
separations and nearly regular tetrahedral configurations. The directions of the ring
current are clockwise, when viewed from the north, where the magnitudes range from
1-3x10-8Am-2. The magnitude is enhanced between about 05 and 11 magnetic locate time
(MLT) and reduced between about 12 and 14 MLT. This suggests the region 2 field
aligned-currents (FACs) are downward at about 10 MLT and upward at about 14
MLT and that the partial ring current contributes between about 05 and 11 MLT. |
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