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Fig. 3 | Progress in Earth and Planetary Science

Fig. 3

From: Effects of the postsunset vertical plasma drift on the generation of equatorial spread F

Fig. 3

PRE peak versus ESF occurrence index for different seasons and solar flux conditions measured by the Jicamarca radar. The red markers in December solstice indicate significant ESF events that followed negative PRE peaks. The error bars represent the variability (in height and time) of the drifts used to compute the PRE peak value. The dashed line indicates the 0.1 ESF occurrence index as a reference. (After Smith et al. 2016)

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