Fig. 14

Comparisons of temporal variations of auroral emissions (20 Hz data used) between 427.8 nm (black) and 557.7 nm, 630 nm, 777.4 nm, and 844.6 nm from top to bottom are presented between 19:43:00 UT and 19:45:00 UT on January 22, 2018. The emission intensities of 557. 7 nm, 630 nm, 777.4 nm, and 844.6 nm are multiplied by 0.1, 5, 2, and 2, respectively, and denoted in red solid lines