Statistical Studies of Coronal Mass Ejections and Coronal Holes

Resumo

Statistical studies of coronal mass ejections (CMEs) and coronal holes (CHs) are reviewed. The work summarizes the historical and current results of statistical studies of CMEs and CHs and their parameters that have been obtained by various authors who considered these phenomena as independent manifestations of solar activity, as well as their mutual effect on geomagnetic activity, based on both ground and space observations.