Plasma and Magnetic Field Characteristics of Solar Coronal Mass Ejections in Relation to Geomagnetic Storm Intensity and Variability

Ying D. Liu, Huidong Hu, Rui Wang +5

The largest geomagnetic storms of solar cycle 24 so far occurred on 2015 March 17 and June 22 with $D_{\mathrm{st}}$ minima of $-223$ and $-195$ nT, respectively. Both of the geomagneti…