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ANGEO | Articles | Volume 37, issue 5
Ann. Geophys., 37, 931–941, 2019
https://doi.org/10.5194/angeo-37-931-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Ann. Geophys., 37, 931–941, 2019
https://doi.org/10.5194/angeo-37-931-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Regular paper 10 Oct 2019

Regular paper | 10 Oct 2019

Strong southward and northward currents observed in the inner plasma sheet

Yan-Yan Yang et al.

Related subject area

Subject: Magnetosphere & space plasma physics | Keywords: Current systems
Statistical survey of day-side magnetospheric current flow using Cluster observations: bow shock
Evelyn Liebert, Christian Nabert, and Karl-Heinz Glassmeier
Ann. Geophys., 36, 1073–1080, https://doi.org/10.5194/angeo-36-1073-2018,https://doi.org/10.5194/angeo-36-1073-2018, 2018
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Cited articles

Baker D. N., Ergun, R. E., Burch, J. L., Jahn, J. M., Daly, P. W., Friedel, R., Reeves, G. D., Fritz, T. A., and Mitchell, D. G.: A telescopic and microscopic view of a magnetospheric substorm on 31 March 2001, Geophys. Res. Lett., 29, 1862, https://doi.org/10.1029/2001GL014491, 2002. 
De Michelis, P., Daglis, I. A., and Consolini, G.: An average image of proton plasma pressure and of current systems in the equatorial plane derived from AMPTE/CCE-CHEM measurements, J. Geophys. Res., 104, 28615–28624, https://doi.org/10.1029/1999JA900310, 1999. 
Dunlop, M. W., Yang, Y. Y., Yang, J. Y., Lühr, H., Shen, C., Olsen, N., Ritter, P., Zhang, Q. H., Cao, J. B., Fu, H. S., and Haagmans, R.: Multispacecraft current estimates atswarm, J. Geophys. Res.-Space Phys., 120, 8307–8316, https://doi.org/10.1002/2015JA021707, 2015a. 
Dunlop, M. W., Yang, J. Y., Yang, Y. Y., Xiong, C., Lühr, H., Bogdanova, Y. V., Shen, C., Olsen, N., Zhang, Q. H., Cao, J. B., Fu, H. S., Liu, W. L., Carr, C. M., Ritter, P., Masson, A., and Haagmans, R.: Simultaneous field-aligned currents at Swarm and Cluster satellites, Geophys. Res. Lett., 42, 3683–3691, https://doi.org/10.1002/2015GL063738, 2015b. 
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Short summary
Previous studies show that the ring current (RC) and field-aligned currents (FACs) are the dominant currents in the inner magnetosphere. However, through two large storm events observed by Cluster, we find new strong southward and northward currents in the latitudinal region from 10° N to 30° N. Theoretical analysis indicates that these currents originated from the fluctuation of magnetic field lines during strong geomagnetic storms.
Previous studies show that the ring current (RC) and field-aligned currents (FACs) are the...
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