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the claim

Solar wind perturbs Earth's magnetic field and causes geomagnetic storms

the verdict
SUPPORTED
the evidence backs this
Recorded sources
5 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that solar wind perturbs Earth's magnetic field and causes geomagnetic storms?

Yes. Multiple studies and space physics observations confirm that variations in the solar wind, such as changes in dynamic pressure and the interplanetary magnetic field, perturb Earth's magnetosphere and drive geomagnetic storms.

Verdict: SUPPORTED · 5 sources for, 0 against · Last checked

The analysis

The claim is a well-established empirical fact in heliophysics and space weather. Retrieved papers provide strong, direct evidence detailing the mechanisms by which solar wind parameters (e.g., CMEs, solar wind pressure, and southward IMF) couple with Earth's magnetosphere to cause geomagnetic storms. There is no evidence refuting this relationship.

Evidence for · 5
The first super geomagnetic storm of solar cycle 24: “The St. Patrick’s day event (17 March 2015)”
2016
Ref [0] details how interplanetary shocks and coronal mass ejections from the solar wind trigger major geomagnetic storms like the March 2015 event.
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Wu, C., Liou, K., Lepping, R., Hutting, L., Plunkett, S., Howard, R., & Socker, D. (2016). The first super geomagnetic storm of solar cycle 24: “The St. Patrick’s day event (17 March 2015)”. doi.org. https://doi.org/10.1186/s40623-016-0525-y

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More for · 4
A superposed epoch analysis of geomagnetic storms
1994
Ref [1] establishes that solar wind parameters, particularly the southward component of the interplanetary magnetic field and solar wind pressure, control geomagnetic storm generation.
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Taylor, J. R., Lester, M., & Yeoman, T. (1994). A superposed epoch analysis of geomagnetic storms. doi.org. https://doi.org/10.1007/S00585-994-0612-4

Causality and Information Transfer Between the Solar Wind and the Magnetosphere-Ionosphere System.
2021
Ref [3] detects causal information transfer from solar wind parameters, specifically the vertical component of the interplanetary magnetic field, to geomagnetic indices.
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P, M., G, B., G, C., C, P., & M, P. (2021). Causality and Information Transfer Between the Solar Wind and the Magnetosphere-Ionosphere System.. doi.org. https://doi.org/10.3390/e23040390

Super-Intense Geomagnetic Storm on 10-11 May 2024: Possible Mechanisms and Impacts.
2024
Ref [7] shows how severe solar wind dynamic pressure and interplanetary electric fields combined to cause one of the most intense geomagnetic storms on record in May 2024.
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S, T. R., B, V., AP, D., J, B., M, B., S, G., N, P., B, R., G, S., R, S., S, S., SV, S., & G, V. (2024). Super-Intense Geomagnetic Storm on 10-11 May 2024: Possible Mechanisms and Impacts.. doi.org. https://doi.org/10.1029/2024sw004126

Solar Wind‐Magnetosphere Coupling Efficiency and Its Dependence on Solar Activity During Geomagnetic Storms of 23–24 Solar Cycles
2024
Ref [8] demonstrates a high correlation between integrated solar wind electric fields and ring current indices, confirming solar wind energy injection during storms.
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Ashna, V. M., Bhaskar, A., Manju, G., & Sini, R. (2024). Solar Wind‐Magnetosphere Coupling Efficiency and Its Dependence on Solar Activity During Geomagnetic Storms of 23–24 Solar Cycles. doi.org. https://doi.org/10.1029/2023JA031687

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What does the evidence say?

The claim is a well-established empirical fact in heliophysics and space weather. Retrieved papers provide strong, direct evidence detailing the mechanisms by which solar wind parameters (e.g., CMEs, solar wind pressure, and southward IMF) couple with Earth's magnetosphere to cause geomagnetic storms. There is no evidence refuting this relationship.

Receipt History
first checked04 Aug 2026
judged → SUPPORTED · 8804 Aug 2026
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