Dynamics of the Earth’s magnetopause’s subsolar location during solar cycle 24 in relation to the phases of geomagnetic storms of CME origin

This article analyses the response of the subsolar position (Ro) of the Earth’s magnetopause to geo-effective ICME storms in solar cycle 24, ranging from minor to extreme intensity, based on the model developed by Shue et al. (1998) and 1-minute OMNI data. The study combines a phase analysis of representative storms with an analysis of the influence of Ro variability on solar wind parameters, without phase distinction (correlations, time lags, Granger causality, and adjustments). The results show that the dynamics of Ro are driven almost exclusively by Pd in the minor and moderate storms studied, while a synergistic shift appears in strong and extreme storms, where magnetic reconnection or even magnetopause erosion becomes decisive. The crossing of the magnetopause at the subsolar point of the geosynchronous orbit (