40623_2021_1360_MOESM1_ESM.mp4 (9.02 MB)
Additional file 1 of Temporal evolutions of $$\text {N}_2^+$$ N 2 + Meinel (1,2) band near $$1.5.\,\upmu \text {m}$$ 1.5 . μ m associated with aurora breakup and their effects on mesopause temperature estimations from OH Meinel (3,1) band
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posted on 2021-01-30, 04:27 authored by Takanori Nishiyama, Makoto Taguchi, Hidehiko Suzuki, Peter Dalin, Yasunobu Ogawa, Urban Brändström, Takeshi SakanoiAdditional file 1: Video S1. A aurora movie at Sodankylä Geophysical Observatory for a night on September 21, 2019. This movie is from images captured by an intensified CCD all-sky camera with 512 × 512 pixels and the image intensifier. The single frame exposure is 600 milliseconds for a wavelength of 557.7 nm and it repeated every 20 s. In the movie, strong intensification of aurora arc can be seen at 2154:20 UT, which are probably the same as those observed at Kiruna.
