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Earth, Planets and Space
Fig. 3 | Earth, Planets and Space

Fig. 3

From: Statistical analysis of the mid-latitude trough position during different categories of magnetic storms and different storm intensities

Fig. 3

Superposed epoch plots of the Dst index (a), Northern Hemisphere trough positions (b) and the average trough positions in both hemispheres (c) for 33 MC storms. The color of the plot in a presents the density of data points in 5 nT by 3-h bins. The black and white lines in a indicate the mean and the median, respectively. The pink, green and black circles in b indicate the data derived from DMSP-F12, DMSP-F14 and DMSP-F15, respectively. The black and blue lines in b indicate the mean and the median, respectively. The black and blue lines in c indicate the results of the Northern Hemisphere and Southern Hemisphere, respectively. The short vertical lines in each figure indicate the range bounded by the upper and lower quartiles. The red vertical lines show the start or end of each phase

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