Fig. 15

TEC maps derived by double-shell model with shell height combination of 300 and 600 km for June solstice 2014. a Two-shell TEC, b ls-TEC, and c hs-TEC
TEC maps derived by double-shell model with shell height combination of 300 and 600 km for June solstice 2014. a Two-shell TEC, b ls-TEC, and c hs-TEC