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| Titel |
Local time resolved FAC behaviors |
| VerfasserIn |
Maosheng He, Joachim Vogt, Hermann Lühr, Eugen Sorbalo |
| Konferenz |
EGU General Assembly 2014
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250097066
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| Publikation (Nr.) |
 EGU/EGU2014-12608.pdf |
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| Zusammenfassung |
| The empirical model MFACE [He et al., 2012] and ten years of CHAMP magnetic
measurements are used to study the local time resoluted behaviors of field-aligned currents
(FACs), including the level of FAC predictability, latitudinal distribution, FAC intensity, and
delay time to solar wind. Results indicate that the FACs respond quicker to solar wind
changes on the dayside than on the nightside: 15–20 min vs. 55–95 min delays for the FAC
intensity referring to solar wind conditions at the bow shock nose, and 20–30 min vs. 35–65
min for the FAC latitude. The predictability of dayside FACs is higher than on the nightside:
the determination coefficient R2 reaches values >0.3 for FAC intensity and >0.7 for FAC
latitude whereas the corresponding values for the nightside are |
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