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Fig. 3 | Progress in Earth and Planetary Science

Fig. 3

From: Day-to-day and short-term variabilities in the equatorial plasma bubble/spread F irregularity seeding and development

Fig. 3

The panels descending from top to bottom show variations during 16, 17, and 18 September 2000 in (1) the interplanetary magnetic field component Bz, (2) the auroral electrojet activity AE index, (3) isolines of F layer heights at fixed plasma frequencies (from 3 MHz to 12 MHz) and the layer peak height hmF2 as observed by a Digisonde at Sao Luis, (4) the same parameters as in (3) over Cachoeira Paulista, and (5) the vertical drift calculated as mean of dhF/dt at plasma the frequencies 4, 5, 6, and 7 MHz over Sao Luis. The spread F intensity index parameter, fop, is also shown as vertical bar plots in orange color in panels 3 and 4 for Sao Luis and Cachoeira Paulista

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