NDLI: Cluster observations of large-scale southward movement and dawnward-duskward flapping of Earth’s magnetotail current sheet

Content Provider	Springer Nature Link
Author	Duan, AiYing Cao, JinBin Ma, YuDuan Wei, XinHua
Copyright Year	2012
Abstract	In August 2001, Cluster satellites observed that the mid-tail current sheet (CS) moved southward continuously for almost seven hours. Meanwhile, Cluster crossed back and forth the CS repeatedly. This means that the large-scale southward movement of the CS was accompanied by a small-scale CS flapping during this period. Using the minimum-variation-analysis (MVA) method and the multi-spacecraft data, we calculated the normal vector, current density and the magnetic curvature of the CS, the results showed that the CS alternated between flattened CS and tilted CS for several times. Strong dawn-dusk oscillations were found for the tilted CS, which caused the repeated crossings of the center of CS by the satellites. This feature is obviously different from the previous observations of the vertical flapping of the CS induced by the kink instability. Two types of flapping were observed: One of them is accompanied with bursty bulk flows (BBFs) and the other is not. This suggests that in this event there was no direct relationship between the CS flapping and BBFs.
Starting Page	194
Ending Page	204
Page Count	11
File Format	PDF
ISSN	16747321
Journal	Science in China Series E: Technological Sciences
Volume Number	56
Issue Number	1
e-ISSN	18691900
Language	English
Publisher	SP Science China Press
Publisher Date	2012-11-17
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	flattened current sheet tilted current sheet flapping motion BBFs Engineering
Content Type	Text
Resource Type	Article
Subject	Engineering Materials Science

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