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Progress in Earth and Planetary Science
Fig. 3 | Progress in Earth and Planetary Science

Fig. 3

From: Review of the generation mechanisms of post-midnight irregularities in the equatorial and low-latitude ionosphere

Fig. 3

Seasonal and local time variations in the F-region FAI echoes observed at Kototabang, Indonesia from 2006 to 2010. A signal-to-noise ratio larger than 0 dB was regarded to be an echo from an FAI. Red and blue sections represent FAI occurrences and non-occurrences, respectively, against local time and day of the year for each year from 2006 to 2010. The yearly average of the solar flux F10.7 is given at the top of each panel (after Nishioka et al. 2012)

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