17:15 〜 19:00
[PEM16-P28] Statistical Investigation of Variability in Upper Thermospheric Helium from Ground-based Optical Observations at Longyearbyen, Svalbard (78°N), during Two Recent Winter Seasons
キーワード:Orthohelium、大気光、上部熱圏、下部外圏、スヴァールバル諸島、地上分光観測