Preprints
https://doi.org/10.5194/egusphere-2025-2569
https://doi.org/10.5194/egusphere-2025-2569
10 Jul 2025
 | 10 Jul 2025
Status: this preprint is open for discussion and under review for Geoscientific Instrumentation, Methods and Data Systems (GI).

Prediction of magnetic activities for Solar Cycle 25 using neural networks

Thiago Sant'Anna, Luiz Benyosef, and Edwin Camacho

Abstract. Recent advancements in artificial intelligence research have shown promising results in addressing scientific and operational challenges related to Space Weather. The abundance of historical solar wind data collected near Earth presents an opportunity to leverage modern scientific methodologies that integrate large datasets and computational modeling. In this study, we analyzed multivariate solar wind data spanning the twenty-third to twenty-fifth solar cycles to develop a predictive model for geomagnetic storms. Our improved long-short-term memory recurrent neural network model with an attention mechanism demonstrated accurate predictions of moderate events between 2023 and 2025, outperforming international reference models. We also evaluated the model's performance in predicting the intense geomagnetic storm of May 2024, which saw a significant Dst index amplitude variation exceeding 400 nT. This research contributes to the advancement of early warning systems, risk mitigation strategies, and offers a new approach to analyzing geomagnetic storms morphology.

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Thiago Sant'Anna, Luiz Benyosef, and Edwin Camacho

Status: open (until 01 Oct 2025)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2025-2569', Anonymous Referee #1, 15 Aug 2025 reply
    • AC1: 'Reply on RC1', Thiago Sant Anna, 20 Aug 2025 reply
Thiago Sant'Anna, Luiz Benyosef, and Edwin Camacho
Thiago Sant'Anna, Luiz Benyosef, and Edwin Camacho

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Short summary
Artificial intelligence research has been improving as a viable solution for scientific and operational problems related to Space Weather. Based on multivariate solar wind data, we conducted a study to enable the prediction of geomagnetic storms using a deep neural network model. We tested the accuracy and sensitivity of the model when predicting the intense geomagnetic storm of May 2024. The results show good performance when compared to international reference models.
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