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Flapping motion configurations of geomagnetotail current sheet

Dunlop, M.; Rong, Zhaojin; Shen, Chao +5 more

We explore the geometry of the flapping motion of geomagnetotail current sheet with the magnetic measurements of the Cluster (constellation) using a newly developed technique. The principal curvatures and directions of the surfaces of the flapping current sheet are successfully deduced by the normal field analysis (NFA). Results show that the dire…