Articles | Volume 40, issue 4
Ann. Geophys., 40, 545–562, 2022
https://doi.org/10.5194/angeo-40-545-2022
Ann. Geophys., 40, 545–562, 2022
https://doi.org/10.5194/angeo-40-545-2022
Regular paper
30 Aug 2022
Regular paper | 30 Aug 2022

The time derivative of the geomagnetic field has a short memory

Mirjam Kellinsalmi et al.

Download

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • CC1: 'Comment on angeo-2022-4: Methodology and circular mean', Spencer Hatch, 04 Feb 2022
    • AC1: 'Reply on CC1', Mirjam Kellinsalmi, 04 Feb 2022
      • CC2: 'Reply to AC1', Spencer Hatch, 07 Feb 2022
  • RC1: 'Comment on angeo-2022-4', Anonymous Referee #1, 15 Feb 2022
    • AC2: 'Reply on RC1', Mirjam Kellinsalmi, 25 Feb 2022
  • RC2: 'Comment on angeo-2022-4', Anonymous Referee #2, 03 Mar 2022
    • AC3: 'Reply on RC2', Mirjam Kellinsalmi, 15 Mar 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to revisions (further review by editor and referees) (17 Mar 2022) by Dalia Buresova
AR by Mirjam Kellinsalmi on behalf of the Authors (25 Apr 2022)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (26 Apr 2022) by Dalia Buresova
RR by Anonymous Referee #1 (01 May 2022)
RR by Anonymous Referee #2 (27 May 2022)
ED: Publish subject to revisions (further review by editor and referees) (31 May 2022) by Dalia Buresova
AR by Mirjam Kellinsalmi on behalf of the Authors (23 Jun 2022)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (04 Jul 2022) by Dalia Buresova
RR by Anonymous Referee #2 (15 Jul 2022)
ED: Publish subject to technical corrections (18 Jul 2022) by Dalia Buresova
AR by Mirjam Kellinsalmi on behalf of the Authors (02 Aug 2022)  Author's response    Manuscript
Download
Short summary
Eruptions from the Sun can pose a hazard to Earth's power grids via, e.g., geomagnetically induced currents (GICs). We study magnetic measurements from Fennoscandia to find ways to understand and forecast GIC. We find that the direction of the time derivative of the magnetic field has a short reset time, about 2 min. We conclude that this result gives insight on the current systems high in Earth’s atmosphere, which are the main driver behind the time derivative’s behavior and GIC formation.