[P-EM15] [EE] 太陽地球系結合過程の研究基盤形成

[PEM15-P11] Spectral observations of aurora and artificial aurora in EISCAT radar site, Tromsø, Norway.

*津田 卓雄¹、濱田 汐梨¹、細川 敬祐¹、川端 哲也²、野澤 悟徳²、水野 亮² (1.電気通信大学、2.名古屋大学)

キーワード：Spectrograph, Aurora, Artificial aurora, EISCAT

We have developed a compact spectrograph, which is capable of measuring optical emission intensity in visible range from ~480 nm to ~880 nm with a resolution of ~1.6 nm. The aperture, i.e. F-number, is ~4, and the data sampling rate is 1 Hz. We installed the spectrograph in European incoherent scatter (EISCAT) radar site, Tromsø, Norway (69.6N, 19.2E), and started unmanned nighttime operation on 4 October 2016. The field-of-view (FOV) of the spectrograph is pointed at magnetic field-algined direction. Since then, aurora observations have been done continuously during this winter. In addition to the aurora observations, we plan to conduct EISCAT heater experiments for artificial aurora observations in February and March 2017. In the presentation, we will introduce spectral observations of aurora and artificial aurora in EISCAT Tromsø site.