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Explores ionospheric response to super geomagnetic storm in low-latitude regions, indicating significant disturbances.
The current study explores how the topside equatorial and low‐latitude ionosphere responded to the super geomagnetic storm on 10–11 May 2024, using in situ data from the Swarm constellation. During the storm's main phase, enhancements in the EIA (equatorial ionization anomaly) were observed, forming strong super‐fountains. The EIAs were extended toward latitudes beyond of the magnetic equator, with the crests of the EIAs being shifted to of the magnetic equator on both hemispheres during the main phase of the storm. Swarm‐A observed the strongest storm‐time super‐fountain during its entire age (2013‐present) with nearly increase in the crest density compared to the quiet‐time conditions. During the recovery phase, the EIA was suppressed entirely, and density crests were observed over the magnetic equator, and troughs were observed at locations around – of magnetic dip latitude.
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Nayak et al. (2025) studied this question.
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