Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 43, issue 2
Articles | Volume 43, issue 2
https://doi.org/10.5194/angeo-43-835-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/angeo-43-835-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 43, issue 2
Regular paper
 | 
15 Dec 2025
Regular paper |  | 15 Dec 2025

Parameterization of the subsolar standoff distance of Earth's magnetopause based on results from machine learning

Lars Klingenstein, Niklas Grimmich, Yuri Y. Shprits, Adrian Pöppelwerth, and Ferdinand Plaschke

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Cited articles

Aghabozorgi Nafchi, M., Němec, F., Pi, G., Němeček, Z., Šafránková, J., Grygorov, K., and Šimůnek, J.: Interplanetary Magnetic Field By Controls the Magnetopause Location, Journal of Geophysical Research: Space Physics, 128, e2023JA031303, https://doi.org/10.1029/2023JA031303, 2023. a, b, c, d
Aghabozorgi Nafchi, M., Němec, F., Pi, G., Němeček, Z., Šafránková, J., Grygorov, K., Šimůnek, J., and Tsai, T.-C.: Magnetopause location modeling using machine learning: inaccuracy due to solar wind parameter propagation, Frontiers in Astronomy and Space Sciences, 11, 1390427, https://doi.org/10.3389/fspas.2024.1390427, 2024. a, b, c, d, e, f, g, h, i, j, k, l, m
Angelopoulos, V.: The THEMIS Mission, Space Science Reviews, 141, 5–34, https://doi.org/10.1007/s11214-008-9336-1, 2008. a
Aubry, M. P., Russell, C. T., and Kivelson, M. G.: Inward motion of the magnetopause before a substorm, Journal of Geophysical Research (1896–1977), 75, 7018–7031, https://doi.org/10.1029/JA075i034p07018, 1970. a
Baraka, S. M., Le Contel, O., Ben-Jaffel, L., and Moore, W. B.: The Impact of Radial and Non-Radial IMF on the Earth's Magnetopause Size, Shape, and Dawn-Dusk Asymmetry From Global 3D Kinetic Simulations, Journal of Geophysical Research: Space Physics, 126, e2021JA029528, https://doi.org/10.1029/2021JA029528, 2021. a, b, c
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We applied machine learning to investigate how the solar wind and Earth's geomagnetic activity control the position of the magnetopause, the boundary layer of Earth's magnetic field. Our results demonstrate that geomagnetic activity strongly influences this boundary and should be incorporated in predictive models. Using data from multiple spacecraft, we developed a simple mathematical description of the magnetopause distance that improves understanding of solar wind–magnetosphere interactions.
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