Preprints
https://doi.org/10.5194/egusphere-2023-2300
https://doi.org/10.5194/egusphere-2023-2300
23 Oct 2023
 | 23 Oct 2023

Finding reconnection lines and flux rope axes via local coordinates in global ion-kinetic magnetospheric simulations

Markku Alho, Giulia Cozzani, Ivan Zaitsev, Fasil Tesema Kebede, Urs Ganse, Markus Battarbee, Maarja Bussov, Maxime Dubart, Sanni Hoilijoki, Leo Kotipalo, Konstantinos Papadakis, Yann Pfau-Kempf, Jonas Suni, Vertti Tarvus, Abiyot Workayehu, Hongyang Zhou, and Minna Palmroth

Abstract. Magnetic reconnection is a crucially important process for energy conversion in plasma physics, the substorm cycle of Earth's magnetosphere and solar flares being prime examples. While 2D models have been widely applied to study reconnection, investigating reconnection in 3D is still in many aspects an open problem. Finding sites of magnetic reconnection in a 3D setting is not a trivial task, with several approaches from topological skeletons to Lorentz transformations proposed to tackle the issue. This work presents a complementary method by noting that the magnetic field structures near reconnection lines exhibit two-dimensional features that can be identified in a suitably chosen local coordinate system. We present applications of this method to a hybrid-Vlasov Vlasiator simulation of the Earth's magnetosphere, showing the complex magnetic topologies created by reconnection. We also overview the dimensionalities of magnetic field structures in the simulation to support the use of such coordinate systems.

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Journal article(s) based on this preprint

16 May 2024
Finding reconnection lines and flux rope axes via local coordinates in global ion-kinetic magnetospheric simulations
Markku Alho, Giulia Cozzani, Ivan Zaitsev, Fasil Tesema Kebede, Urs Ganse, Markus Battarbee, Maarja Bussov, Maxime Dubart, Sanni Hoilijoki, Leo Kotipalo, Konstantinos Papadakis, Yann Pfau-Kempf, Jonas Suni, Vertti Tarvus, Abiyot Workayehu, Hongyang Zhou, and Minna Palmroth
Ann. Geophys., 42, 145–161, https://doi.org/10.5194/angeo-42-145-2024,https://doi.org/10.5194/angeo-42-145-2024, 2024
Short summary
Markku Alho, Giulia Cozzani, Ivan Zaitsev, Fasil Tesema Kebede, Urs Ganse, Markus Battarbee, Maarja Bussov, Maxime Dubart, Sanni Hoilijoki, Leo Kotipalo, Konstantinos Papadakis, Yann Pfau-Kempf, Jonas Suni, Vertti Tarvus, Abiyot Workayehu, Hongyang Zhou, and Minna Palmroth

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2023-2300', Anonymous Referee #1, 15 Nov 2023
    • AC1: 'Reply on RC1', Markku Alho, 31 Jan 2024
  • RC2: 'Comment on egusphere-2023-2300', Anonymous Referee #2, 30 Nov 2023
    • AC2: 'Reply on RC2', Markku Alho, 31 Jan 2024

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2023-2300', Anonymous Referee #1, 15 Nov 2023
    • AC1: 'Reply on RC1', Markku Alho, 31 Jan 2024
  • RC2: 'Comment on egusphere-2023-2300', Anonymous Referee #2, 30 Nov 2023
    • AC2: 'Reply on RC2', Markku Alho, 31 Jan 2024

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Publish as is (14 Feb 2024) by Christopher Mouikis
AR by Markku Alho on behalf of the Authors (20 Feb 2024)  Manuscript 

Journal article(s) based on this preprint

16 May 2024
Finding reconnection lines and flux rope axes via local coordinates in global ion-kinetic magnetospheric simulations
Markku Alho, Giulia Cozzani, Ivan Zaitsev, Fasil Tesema Kebede, Urs Ganse, Markus Battarbee, Maarja Bussov, Maxime Dubart, Sanni Hoilijoki, Leo Kotipalo, Konstantinos Papadakis, Yann Pfau-Kempf, Jonas Suni, Vertti Tarvus, Abiyot Workayehu, Hongyang Zhou, and Minna Palmroth
Ann. Geophys., 42, 145–161, https://doi.org/10.5194/angeo-42-145-2024,https://doi.org/10.5194/angeo-42-145-2024, 2024
Short summary
Markku Alho, Giulia Cozzani, Ivan Zaitsev, Fasil Tesema Kebede, Urs Ganse, Markus Battarbee, Maarja Bussov, Maxime Dubart, Sanni Hoilijoki, Leo Kotipalo, Konstantinos Papadakis, Yann Pfau-Kempf, Jonas Suni, Vertti Tarvus, Abiyot Workayehu, Hongyang Zhou, and Minna Palmroth

Data sets

Vlasiator 6D 'EGI' tail current sheet data series Minna Palmroth https://doi.org/10.23729/72EFF3EF-C84B-43B8-94D1-0A8B49C7C56D

Model code and software

Vlasiator Yann Pfau-Kempf, Sebastian von Alfthan, Urs Ganse, Arto Sandroos, Markus Battarbee, Tuomas Koskela, Otto Hannuksela, Ilja Honkonen, Kostis Papadakis, Leo Kotipalo, Hongyang Zhou, Maxime Grandin, Dimitry Pokhotelov, and Markku Alho https://doi.org/10.5281/zenodo.3640593

Analysator Markus Battarbee, Otto Hannuksela, Yann Pfau-Kempf, Sebastian von Alfthan, Urs Ganse, Riku Jarvinen, Leo Kotipalo, Jonas Suni, Markku Alho, Lucile Turc, Ilja Honkonen, Thiago Brito, and Maxime Grandin https://doi.org/10.5281/zenodo.4462514

Markku Alho, Giulia Cozzani, Ivan Zaitsev, Fasil Tesema Kebede, Urs Ganse, Markus Battarbee, Maarja Bussov, Maxime Dubart, Sanni Hoilijoki, Leo Kotipalo, Konstantinos Papadakis, Yann Pfau-Kempf, Jonas Suni, Vertti Tarvus, Abiyot Workayehu, Hongyang Zhou, and Minna Palmroth

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