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| Titel |
Cluster observations of reconnection due to the Kelvin-Helmholtz instability at the dawnside magnetospheric flank |
| VerfasserIn |
K. Nykyri, A. Otto, B. Lavraud, C. Mouikis, L. M. Kistler, A. Balogh, H. Rème |
| 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 ; 24, no. 10 ; Nr. 24, no. 10 (2006-10-20), S.2619-2643 |
| Datensatznummer |
250015655
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| Publikation (Nr.) |
 copernicus.org/angeo-24-2619-2006.pdf |
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| Zusammenfassung |
| On 3 July 2001, the four Cluster satellites traversed along the dawnside
magnetospheric flank and observed large variations in all plasma parameters.
The estimated magnetopause boundary normals were oscillating in the
z-direction and the normal component of the magnetic field showed
systematic 2–3 min bipolar variations for 1 h when the IMF had a
small positive bz-component and a Parker-spiral orientation in the
x,y-plane. Brief 33 s intervals with excellent deHoffman Teller
frames were observed satisfying the Walén relation. Detailed comparisons
with 2-D MHD simulations indicate that Cluster encountered rotational
discontinuities generated by Kelvin-Helmholtz instability. We estimate a wave
length of 6 RE and a wave vector with a significant
z-component. |
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