Global Characteristics of Medium-Scale Ionosphere-Thermosphere Disturbances During SSW: An HR-WACCM-X Study

The high-resolution HR-WACCM-X model simulation, with a spatial resolution of up to 200 km, enables the global-scale analysis of medium-scale ionosphere-thermosphere disturbances (MSTIDs/MSTADs). This study examines the latitudinal variability of these disturbances during Sudden Stratospheric Warming (SSW) events, emphasizing the role of ion-neutral coupling and wave-wave interactions in modulating ion-neutral dynamics under different overlapping geomagnetic conditions.