Fig. 7.
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Maps for the daytime vertical plasma transport caused by horizontal thermospheric wind at December and June solstice (a), (b). Panel (c) shows the local winters longitudinal variations of the vertical plasma transport averaged in the 40–60° geographic latitude bands in the Northern (blue) and Southern (red) Hemispheres. Bold gray curves (a), (b) are the geomagnetic equator and ±15° geomagnetic latitudes.
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