Large Geomagnetic Storms Drives by Solar Wind in Solar Cycle 24

Abstract Various solar phenomena cause anomalous circumstances in the interplanetary magnetic field (IMF) and solar wind plasma emissions. These will produce geomagnetic field disturbances for near earth space at 1AU known as geomagnetic storm. A selection of solar magnetic storm for the period (2010-2017) have been analyzed, associated with disturbance geomagnetic storm intensity (Dst) less than (-50 nT). Through the study epoch, we found 50 great solar magnetic storms, 32 were moderate, 16 were strong, and two were severe. The major severe storm occurred on 17th of March in 2015 with (Dst ∼ - 223 nT). The most of Coronal Mass Ejection (CME) that initiated the geomagnetic storms have visual width of 360 degree, and with sky plane speed around (350-2500) Km s-1. There is a better correlation for sunspot number than (CME sky plane speed with Dst index. In this investigation, we notice that the strength of geomagnetic storms has a behavior that is in harmony with solar activity extent. The reciprocal relation between geomagnetic activity and solar activity infers that space systems and many communications could be harmfully precious for numerous years after an exciting solar maximum.