Magnetic Storm-Time Red Aurora as Seen From Hokkaido, Japan on 1 December 2023 Associated With High-Density Solar Wind

Published in Geophysical Research Letters, 2024

Citizen scientists identified an unusually bright red aurora from Hokkaido, Japan during a not-so-unusual magnetic storm on 1 December 2023. The large dynamic pressure, driven by large density of >50/cc, contributed to a small magnetopause and the effects observed at such low latitude. The hypothesis of this study is that the loss of ring current particles across the small-size magnetopause played an important role. Also, we discuss that Hokkaido was at the right position to see the direct effect of storm-time substorm.

Recommended citation: Kataoka, R., Miyoshi, Y., Shiokawa, K., Nishitani, N., Keika, K., Amano, T., & Seki, K. (2024). "Magnetic storm-time red aurora as seen from Hokkaido, Japan on 1 December 2023 associated with high-density solar wind" Geophysical Research Letters. 51, e2024GL108778. https://doi.org/10.1029/2024GL108778