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| Titel |
Inter-hemispheric asymmetry of dependence of the cusp location on dipole tilt during northward IMF conditions |
| VerfasserIn |
J. Shi, J. Guo, M. Dunlop, T. Zhang, Z. Liu, E. Lucek, A. Fazakerley, H. Rème, I. Dandouras |
| 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. 1 ; Nr. 30, no. 1 (2012-01-05), S.21-26 |
| Datensatznummer |
250017159
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| Publikation (Nr.) |
 copernicus.org/angeo-30-21-2012.pdf |
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| Zusammenfassung |
| A data set of the Cluster cusp crossings over a 5-year period is studied for
the interhemispheric comparison of the dipole tilt angle effect on the
latitude of the mid-altitude cusp. The result shows that the dipole tilt
angle has a clear control of the cusp latitudinal location. Although, the
northern cusp moves 0.054° ILAT for every 1° increase in the dipole
tilt angle at the mean altitude of 5.2 RE, the southern cusp moves
0.051° ILAT for every 1° increase in the dipole tilt angle at the
mean altitude of 6.6 RE. The northern cusp dependence agrees with the
trend formed by other observations of different satellites for different
altitudes, whereas the southern cusp does not. We therefore suggest that
there is an inter-hemispheric difference in the dipole tilt angle dependence
of cusp, latitudinal location, which has an impact on other observations of
different satellites in different altitudes. |
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