Japan Geoscience Union Meeting 2022

Presentation information

[E] Poster

P (Space and Planetary Sciences ) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM13] Coupling Processes in the Atmosphere-Ionosphere System

Wed. Jun 1, 2022 11:00 AM - 1:00 PM Online Poster Zoom Room (4) (Ch.04)

convener:Huixin Liu(Earth and Planetary Science Division, Kyushu University SERC, Kyushu University), convener:Yuichi Otsuka(Institute for Space-Earth Environmental Research, Nagoya University), Loren Chang(Institute of Space Science, National Central University), convener:Yue Deng(University of Texas at Arlington), Chairperson:Yuichi Otsuka(Institute for Space-Earth Environmental Research, Nagoya University), Atsuki Shinbori(Institute for Space-Earth Environment Research (ISEE), Nagoya University)


11:00 AM - 1:00 PM

[PEM13-P05] Test observations by low-cost small all-sky imagers for multi-point measurements of airglow at middle and low latitudes

*Kazuo Shiokawa1, Yuka Yamamoto1, Takumi Adachi1, Kouki Kawai1, Kohki Nakamura1, Jie Liu1, Liwei Chen1, Yuto Kato1, Takuma Tsuboi1, Sato Masaki1, Rei Sugimura1, Tomoka Oonishi1, Kohei Toyama1, Kazuki Nomura1, Yoshizumi Miyoshi1, Yasunobu Ogawa2, Mitsumu K. Ejiri2, Keisuke Hosokawa3, Shin Suzuki4, Takeshi Sakanoi5 (1.Institute for Space-Earth Environmental Research, Nagoya University, 2.National Institute of Polar Research, 3.The University of Electro-Communications, 4.Aichi University, 5.Tohoku University)

Keywords:airglow, low-cost camera, instrumental development

We are developing low-cost small all-sky imagers for measurements of airglow at middle and low latitudes. The imagers consist of a CCD camera (WATEC WAT-910HX) with a fish-eye lens Fujinon FE1185C057HA-1 and band-bass filters with bandwidths of ~10 nm (Ogawa et al., 2020). This camera succeeded to obtain plasma bubble images using a 630-nm filter (Hosokawa et al., 2020). From test observations at Shigaraki, Japan (34.8N, 136.1E), in August 2021, we also obtain mesospheric gravity wave images using a 557.7-nm filter. We are also testing a CMOS camera (ZWO ASI294MM Pro) as a detector of all-sky imagers of Optical Mesosphere Thermosphere Imagers (OMTIs, Shiokawa et al., 1999). This set of OMTI optics (KEO Sentry 3) with the ZWO camera succeeded to obtain images of gravity waves at 557.7-nm and medium-scale traveling ionospheric disturbances at 630.0 nm at Sata, Japan (31.0N, 130.7E). In addition, three sets of the Fujinon lens and the ZWO camera are tested at Shigaraki, Japan, since January 22, 2022, for airglow measurements in 557.7 nm, 630.0 nm, and OH-band emissions. These CCD and CMOS cameras cost US$1000-2000, which is 20-40 times cheaper than the previous cooled-CCD camera used for OMTIs. We plan to distribute these low-cost small all-sky imagers in Europe, Asia, and Africa to make multi-point measurements of airglow images at middle and low latitudes.

Ogawa et al. (Polar Sci., 2020, https://doi.org/10.1016/j.polar.2019.100501)
Hosokawa et al. (EPS, 2020, https://doi.org/10.1186/s40623-020-01187-1)
Shiokawa et al. (EPS, 1999, https://doi.org/10.1186/BF03353247)