Fig. 2From: Statistical analysis of the mid-latitude trough position during different categories of magnetic storms and different storm intensitiesMay 8, 2005, CIR storm. a Dst index, b Kp index, c Northern Hemisphere trough positions derived from DMSP-F15 satellite data, d Southern Hemisphere trough positions derived from DMSP-F14 satellite data, e Northern Hemisphere trough positions derived from DEMETER satellite data. The red vertical lines show the start or end of each phaseBack to article page