Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 42, issue 2
Articles | Volume 42, issue 2
https://doi.org/10.5194/angeo-42-371-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/angeo-42-371-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 42, issue 2
Regular paper
 | 
12 Sep 2024
Regular paper |  | 12 Sep 2024

The Cluster spacecrafts' view of the motion of the high-latitude magnetopause

Niklas Grimmich, Ferdinand Plaschke, Benjamin Grison, Fabio Prencipe, Christophe Philippe Escoubet, Martin Owain Archer, Ovidiu Dragos Constantinescu, Stein Haaland, Rumi Nakamura, David Gary Sibeck, Fabien Darrouzet, Mykhaylo Hayosh, and Romain Maggiolo

Data sets

Database: Cluster Magnetopause Crossings between 2001 and 2020 N. Grimmich et al. https://doi.org/10.17605/OSF.IO/PXCTG

Magnetopaus Crossings by CLUSTER 3 (2001-2009) S. M. Petrinec et al. https://www.cosmos.esa.int/web/csa/bow-shock-magnetopause-crossings

The Cluster Active Archive (https://csa.esac.esa.int/csa-web/) H. Laakso et al. https://doi.org/10.1007/978-90-481-3499-1

Solar wind spatial scales in and comparisons of hourly Wind and ACE plasma and magnetic field data (https://omniweb.gsfc.nasa.gov) J. H. King and N. E. Papitashvili https://doi.org/10.1029/2004JA010649

Model code and software

The Space Physics Environment Data Analysis System in Python (https://github.com/spedas/pyspedas) E. W. Grimes et al. https://doi.org/10.3389/fspas.2022.1020815

The Space Physics Environment Data Analysis System in Python (https://github.com/spedas/pyspedas) E. W. Grimes et al. https://doi.org/10.3389/fspas.2022.1020815

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Short summary
In our study, we looked at the boundary between the Earth's magnetic field and the interplanetary magnetic field emitted by the Sun, called the magnetopause. While other studies focus on the magnetopause motion near Earth's Equator, we have studied it in polar regions. The motion of the magnetopause is faster towards the Earth than towards the Sun. We also found that the occurrence of unusual magnetopause locations is due to similar solar influences in the equatorial and polar regions.
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