Super-Intense Geomagnetic Storm on 10-11 May 2024: Possible Mechanisms and Impacts.

ABSTRACT: One of the most intense geomagnetic storms of recent times occurred on 10-11 May 2024. With a peak negative excursion of Sym-H below -500 nT, this storm is the second largest of the space era. Solar wind energy transferred through radiation and mass coupling affected the entire Geospace. Our study revealed that the dayside magnetopause was compressed below the geostationary orbit (6.6 RE) for continuously ∼6 hr due to strong Solar Wind Dynamic Pressure (SWDP). Tremendous compression pushed the bow-shock also to below the geostationary orbit for a few minutes. Magnetohydrodynamic models suggest that the magnetopause location could be as low as 3.3RE. We show that a unique combination of high SWDP (≥15 nPa) with an intense eastward interplanetary electric field (IEF_Y ≥ 2.5 mV/m) w

SUBMITTER: Tulasi Ram S 

PROVIDER: S-EPMC11602687 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature