Analysis of energy conversion processes at kinetic scales associated with a series of dipolarization fronts observed by MMS during a substorm
- 1Sorbonne University, LPP, Plasma Physics Laboratory, Space plasma, France (soboh.al-qeeq@lpp.polytechnique.fr)
- *A full list of authors appears at the end of the abstract
In July 2017, the MMS constellation was in the magnetotail with an apogee of 25 Earth radii
and an average inter-satellite distance of 10 km (i.e. at electron scales). On 23 July around
16:19 UT, MMS was located at the edge of the current sheet which was in a quasi-static
state. Then, MMS suddenly entered in the central plasma sheet and detected the local onset
of a small substorm as indicated by the AE index (~400 nT). Fast earthward plasma flows
were measured for about 1 hour starting with a period of quasi-steady flow and followed by
a saw-tooth like series of fast flows associated with dipolarization fronts. This plasma
transport sequence finished with a flow reversal still occurring close to the magnetic
equator. In the present study, we investigate the energy conversion processes at ion and
electron scales for these different phases with particular attention on the processes in the
vicinity of the dipolarization fronts.
Y. Khotyaintsev (2), R. Nakamura (3), F. D. Wilder (4), N. Ahmadi (4), H. Y. Wei (5), M. Argall (6), D. Fischer (3), D. J. Gershman (7), J. L. Burch (8), R. B. Torbert (6), B. L. Giles (7), S. A. Fuselier (8), R. E. Ergun (4), P.-A. Lindqvist (9), D. L. Turner (10), I. J. Cohen (11)
How to cite: Alqeeq, S., Le Contel, O., Canu, P., Retino, A., Chust, T., and Mirioni, L. and the MMS team: Analysis of energy conversion processes at kinetic scales associated with a series of dipolarization fronts observed by MMS during a substorm, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-19750, https://doi.org/10.5194/egusphere-egu2020-19750, 2020.
