Fig. 13From: Double-thin-shell approach to deriving total electron content from GNSS signals and implications for ionospheric dynamics near the magnetic equatorLatitudinal variation of ls-TEC, hs-TEC, and two-shell TEC for shell height combination of 300 and 600 km. a Transition from 11 to 12 LT and b transition from 17 to 18 LT, c 20 LT, and d 22 LT with plots of two-shell TEC for 20 LT (purple dotted line) and doubled hs-TEC (green dotted line) for convenience of comparisonBack to article page