Preprints
https://doi.org/10.5194/egusphere-2024-3012
https://doi.org/10.5194/egusphere-2024-3012
26 Nov 2024
 | 26 Nov 2024

A Time-Dependent Three-Dimensional Magnetopause Model Based on Quasi-elastodynamic Theory

Yaxin Gu, Yi Wang, Fengsi Wei, Xueshang Feng, Andrey Samsonov, Xiaojian Song, Boyi Wang, Pingbing Zuo, Chaowei Jiang, Yalan Chen, Xiaojun Xu, and Zhilu Zhou

Abstract. The interaction between the solar wind and Earth's magnetosphere is a critical area of research in space weather and space physics. Accurate determination of the magnetopause position is essential for understanding magnetospheric dynamics. While numerous magnetopause models have been developed over past decades, most are time-independent, limiting their ability to elucidate the dynamic movement of the magnetopause under varying solar wind conditions. This study introduces the first time-dependent three-dimensional magnetopause model based on quasi-elastodynamic theory, named the POS (Position-Oscillation-Surface wave) model. Unlike existing time-independent models, the POS model physically reflects the dynamic responses of magnetopause position and shape to time-varying solar wind conditions. The predictive accuracy of the POS model was evaluated by using 38,887 observed magnetopause crossing events. The model achieved a root-mean-square error of 0.768 Earth radii (RE), representing a 18.7 % improvement over five widely used magnetopause models. Notably, the POS model demonstrated superior accuracy under highly disturbed solar wind conditions (24.9 % better) and in higher latitude regions (28.7 % better) and flank regions (35.2 % better) of the magnetopause. The POS model's remarkable accuracy, concise formulation, and fast computational speed enhance our ability to predict magnetopause position and shape in real-time. This advancement is significant for understanding the physical mechanisms of space weather phenomena and improving the accuracy of space weather forecasts. Furthermore, this model may provide new insights and methodologies for constructing magnetopause models for other planets.

Publisher's note: Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this preprint. The responsibility to include appropriate place names lies with the authors.
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Journal article(s) based on this preprint

15 Jul 2025
A time-dependent three-dimensional dayside magnetopause model based on quasi-elastodynamic theory
Yaxin Gu, Yi Wang, Fengsi Wei, Xueshang Feng, Andrey Samsonov, Xiaojian Song, Boyi Wang, Pingbing Zuo, Chaowei Jiang, Yalan Chen, Xiaojun Xu, and Zilu Zhou
Geosci. Model Dev., 18, 4215–4229, https://doi.org/10.5194/gmd-18-4215-2025,https://doi.org/10.5194/gmd-18-4215-2025, 2025
Short summary
Yaxin Gu, Yi Wang, Fengsi Wei, Xueshang Feng, Andrey Samsonov, Xiaojian Song, Boyi Wang, Pingbing Zuo, Chaowei Jiang, Yalan Chen, Xiaojun Xu, and Zhilu Zhou

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2024-3012', Anonymous Referee #1, 17 Dec 2024
    • AC2: 'Reply on RC1', yi wang, 20 Mar 2025
  • RC2: 'Comment on egusphere-2024-3012', Anonymous Referee #2, 18 Feb 2025
    • AC3: 'Reply on RC2', yi wang, 20 Mar 2025
  • AC1: 'Comment on egusphere-2024-3012', yi wang, 20 Mar 2025
    • AC4: 'Reply on AC1', yi wang, 20 Mar 2025

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2024-3012', Anonymous Referee #1, 17 Dec 2024
    • AC2: 'Reply on RC1', yi wang, 20 Mar 2025
  • RC2: 'Comment on egusphere-2024-3012', Anonymous Referee #2, 18 Feb 2025
    • AC3: 'Reply on RC2', yi wang, 20 Mar 2025
  • AC1: 'Comment on egusphere-2024-3012', yi wang, 20 Mar 2025
    • AC4: 'Reply on AC1', yi wang, 20 Mar 2025

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by yi wang on behalf of the Authors (20 Mar 2025)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (31 Mar 2025) by Tatiana Egorova
AR by yi wang on behalf of the Authors (06 Apr 2025)  Manuscript 

Post-review adjustments

AA: Author's adjustment | EA: Editor approval
AA by yi wang on behalf of the Authors (02 Jul 2025)   Author's adjustment   Manuscript
EA: Adjustments approved (07 Jul 2025) by Tatiana Egorova

Journal article(s) based on this preprint

15 Jul 2025
A time-dependent three-dimensional dayside magnetopause model based on quasi-elastodynamic theory
Yaxin Gu, Yi Wang, Fengsi Wei, Xueshang Feng, Andrey Samsonov, Xiaojian Song, Boyi Wang, Pingbing Zuo, Chaowei Jiang, Yalan Chen, Xiaojun Xu, and Zilu Zhou
Geosci. Model Dev., 18, 4215–4229, https://doi.org/10.5194/gmd-18-4215-2025,https://doi.org/10.5194/gmd-18-4215-2025, 2025
Short summary
Yaxin Gu, Yi Wang, Fengsi Wei, Xueshang Feng, Andrey Samsonov, Xiaojian Song, Boyi Wang, Pingbing Zuo, Chaowei Jiang, Yalan Chen, Xiaojun Xu, and Zhilu Zhou
Yaxin Gu, Yi Wang, Fengsi Wei, Xueshang Feng, Andrey Samsonov, Xiaojian Song, Boyi Wang, Pingbing Zuo, Chaowei Jiang, Yalan Chen, Xiaojun Xu, and Zhilu Zhou

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Short summary
This study presents the POS model, the first time-dependent three-dimensional magnetopause model. The POS model captures the real-time movement and shape of the magnetopause with superior accuracy. Its concise formulation and fast computational speed make it suitable for future onboard satellite deployment, enhancing space weather forecasting capabilities and offering new methodologies for magnetopause modeling on other planets.
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