Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 33, issue 3
Articles | Volume 33, issue 3
https://doi.org/10.5194/angeo-33-245-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/angeo-33-245-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 33, issue 3
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: 02 Nov 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.
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Special issue
Dynamic processes in geospace