Articles | Volume 38, issue 5
Regular paper
15 Sep 2020
Regular paper |  | 15 Sep 2020

Induced currents due to 3D ground conductivity play a major role in the interpretation of geomagnetic variations

Liisa Juusola, Heikki Vanhamäki, Ari Viljanen, and Maxim Smirnov


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) (19 Jul 2020) by Georgios Balasis
AR by Heikki Vanhamäki on behalf of the Authors (21 Jul 2020)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (22 Jul 2020) by Georgios Balasis
RR by J. Miquel Torta (27 Jul 2020)
ED: Publish subject to technical corrections (03 Aug 2020) by Georgios Balasis
AR by Heikki Vanhamäki on behalf of the Authors (05 Aug 2020)  Author's response    Manuscript
Short summary
Rapid variations of the magnetic field measured on the ground can be used to estimate space weather risks to power grids, but forecasting the variations remains a challenge. We show that part of this problem stems from the fact that, in addition to electric currents in space, the magnetic field variations are strongly affected by underground electric currents. We suggest that separating the measured field into its space and underground parts could improve our understanding of space weather.