7998 20260218112314.0 POSTER-2026-0050 Dreyer, Joshua Global VTEC Maps of the Geomagnetic Storm in May 2024 and Their Application to Study the Evolution of the Ionospheric and Plasmaspheric VTEC Distribution 2025 2025-04-29 STCE Chevalier, Jean-Marie Bergeot, Nicolas EGU General Assembly 2025 jean-marie.chevalier@ksb-orb.be https://meetingorganizer.copernicus.org/EGU25/EGU25-12567.html CPOSTER