Physics

Powerful geomagnetic storm reveals complex electric currents in Earth’s magnetosphere

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Researchers used RadCube MAGIC observations to detect and analyze complex field-aligned currents during a supersubstorm event that occurred as part of the May 2024 geomagnetic storm. The study identified intricate patterns of electrical currents flowing along Earth's magnetic field lines during this intense space weather event, which represents an extreme manifestation of magnetospheric disturbances. The observations provide detailed characterization of the current systems that develop when solar wind energy couples into Earth's magnetosphere during severe geomagnetic conditions.


Understanding field-aligned currents during extreme geomagnetic events is critical for predicting and mitigating space weather impacts on satellite operations, power grids, and communication systems. Supersubstorms represent some of the most intense magnetospheric disturbances, and improved characterization of their associated current systems can enhance forecasting capabilities and infrastructure protection during major solar events.


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Source: RadCube MAGIC observations of complex field aligned currents associated with a supersubstorm during the May 2024 geomagnetic storm