Figure 9
From: Evidence of short spatial variability of the equatorial electrojet at close longitudinal separation
A plot of all CEJ events for each month. A plot of all CEJ events at VEN (red) and CBY (brown), showing the amplitude (negative) of each event and time of occurrence (shown by separate symbols, as indicated) for each month. (a) November 2011, (b) December 2011, (c) January 2012, and (d) February 2012. Only CEJ with amplitude below midnight mean level is present on many days, and a cutoff value of greater than -2 nT is considered in the present study.