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

Key Points

• The aim is to challenge the perception of an upper limit on the severity of geomagnetic storms due to solar wind strength.
• Analyzed existing data on solar wind and geomagnetic storm intensity.
• Applied statistical analysis to assess the measurement uncertainties of solar wind strength.
• Demonstrated that the perceived upper limit to geomagnetic storms is an illusion.
• Found that true values of solar wind strength often regress towards the mean.