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Geomagnetic storms caused by solar wind might be more extreme than previously thought

Research Space Weather

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TL;DR - Measurement uncertainty might create the illusion that geomagnetic-storm severity plateaus as solar-wind strength rises. Correcting this statistical bias could imply more extreme storms than previously estimated.

  • Solar-wind measurement errors can cause true values to regress toward the mean.
  • This bias can produce an apparent upper limit on geomagnetic-storm severity.
  • Risk models based on that presumed limit might underestimate extreme space-weather events.

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Geomagnetic storms caused by solar wind might be more extreme than previously thought

Nature 2026-07-22 doi:10.1038/d41586-026-02245-6
Public signals OpenAlex citations 0
Providers: Hugging Face · N/A OpenAlex · Citations 0 Publisher · N/A Semantic Scholar · N/A X · N/A Fetched 2026-08-21 14:37:31.914511 UTC

TL;DR - Measurement uncertainty might create the illusion that geomagnetic-storm severity plateaus as solar-wind strength rises. Correcting this statistical bias could imply more extreme storms than previously estimated.

  • Solar-wind measurement errors can cause true values to regress toward the mean.
  • This bias can produce an apparent upper limit on geomagnetic-storm severity.
  • Risk models based on that presumed limit might underestimate extreme space-weather events.
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