Fig. 2From: On the relationship between energy input to the ionosphere and the ion outflow flux under different solar zenith anglesSZA distributions of averaged ion number flux in each event. Events at a all MLT, b only around noon (0800–1600 MLT), and c only around midnight (2200–2400 or 0000–0400 MLT). Different symbols and colors indicate different levels of the Kp indexBack to article page