Articles | Volume 38, issue 3
Ann. Geophys., 38, 749–764, 2020
https://doi.org/10.5194/angeo-38-749-2020
Ann. Geophys., 38, 749–764, 2020
https://doi.org/10.5194/angeo-38-749-2020

Regular paper 24 Jun 2020

Regular paper | 24 Jun 2020

Relation between the asymmetric ring current effect and the anti-sunward auroral currents, as deduced from CHAMP observations

Hermann Lühr and Yun-Liang Zhou

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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to revisions (further review by editor and referees) (21 Apr 2020) by Anna Milillo
AR by Hermann Lühr on behalf of the Authors (21 Apr 2020)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (23 Apr 2020) by Anna Milillo
RR by Anonymous Referee #1 (29 Apr 2020)
ED: Publish subject to minor revisions (review by editor) (29 Apr 2020) by Anna Milillo
AR by Hermann Lühr on behalf of the Authors (04 May 2020)  Author's response    Manuscript
ED: Publish as is (20 May 2020) by Anna Milillo
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Short summary
During magnetic storms the magnetic disturbance at low latitudes becomes asymmetric, enhanced in the evening sector and reduced around morning. This has been attributed to the asymmetric ring current. Here a new 3D current system is proposed for explaining the asymmetric signal. Anti-sunward net currents at high latitude are connected at their noon and night ends to field-aligned currents that lead the currents to the magnetopause on the dawn and dusk flanks where the current closure occurs.