Articles | Volume 33, issue 3
https://doi.org/10.5194/angeo-33-245-2015
https://doi.org/10.5194/angeo-33-245-2015
Regular paper
 | 
03 Mar 2015
Regular paper |  | 03 Mar 2015

Azimuthal velocity shear within an Earthward fast flow – further evidence for magnetotail untwisting?

T. Pitkänen, M. Hamrin, P. Norqvist, T. Karlsson, H. Nilsson, A. Kullen, S. M. Imber, and S. E. Milan

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Latest update: 16 Jul 2024
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Short summary
An azimuthal velocity shear with a reversal within an earthward magnetotail fast flow is studied using Cluster observations. In addition, ionospheric SuperDARN data and different magnetospheric models (T96 and TF04) are utilized when interpreting the Cluster observations. Untwisting of twisted tail B field lines is a good candidate to explain the observations.