Fig. 11From: Performance of the double-thin-shell approach for studying nighttime medium-scale traveling ionospheric disturbances using two dense GNSS observation networks in JapanSame as Fig. 10 but for different epochs after sunset. Subplots (p, q) and (r, s) in the bottom panel provide a closer view of the perturbations in the circled regions in subplots (a, c) and (k, m), respectivelyBack to article page