Fig. 6From: Review of the generation mechanisms of post-midnight irregularities in the equatorial and low-latitude ionosphereHistogram showing the nighttime occurrence of freshly evolved EPBs over Kototabang during the a equinox and b June solstices from 2011 to 2012. The numbers shown on top of the histogram bars indicate percentages (after Ajith et al. 2016)Back to article page