We have investigated interplanetary (IP) structures of 82 intense geomagnetic storms (Dst ≤ -100 nT) that occurred from 1998 to 2006. According to their interplanetary origins, we classified them as four groups: 20 sMC events (IP shock and MC), 19 S...
We have investigated interplanetary (IP) structures of 82 intense geomagnetic storms (Dst ≤ -100 nT) that occurred from 1998 to 2006. According to their interplanetary origins, we classified them as four groups: 20 sMC events (IP shock and MC), 19 SH even