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Fig. 5.


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(a) Diurnal and seasonal variations of the Kan-Lee electric field (EKL = VBTsin2(θc/2). The data are divided into bins defined by 1 h in UT and by 1 month. (b) Mean occurrence rate of the EKL > 2 mV/m over all UT. (c) The occurrence rate of the GPS phase scintillation (same as Fig. 2c). The vertical green solid and dashed lines show the spring and autumn equinoxes, respectively.

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