*Taishi Yamada¹, Masato Iguchi¹, Eisuke Fujita² (1.Sakurajima Volcano Research Center, Disaster Prevention Research Institute, Kyoto University, 2.National Research Institute for Earth Science and Disaster Resilience)

*Akihiko Terada¹, Akira Katori¹, Muga Yaguchi², Mare Yamamoto³, Taishi Yamada⁴, Shin'ya Onizawa², Tatsuji Nishizawa¹, Hiroshi Aoyama⁵, Yuichi Morita⁷, Takeshi Ohba⁶ (1.Volcanic Fluid Research Center, School of Science, Tokyo Institute of Technology, 2.Meteorological Research Institute, JMA, 3.Graduate School of Science, Tohoku University, 4.Disaster Prevention Research Institute, Kyoto University, 5.Faculty of Science, Hokkaido University, 6.Department of chemistry, School of Science, Tokia University, 7.Earthquake Research Institute, University of Tokyo)

*Keigo Yamamoto¹, Takeshi Matsushima², Shin Yoshikawa³, Hiroyuki Inoue³, Tadaomi Sonoda¹, Taishi Yamada¹, Yichen Tang², Koki Yoshinaga², Takamitsu Ikegame⁴, Hiroshi Kishimoto⁴, Takahiro Ohkura³ (1.Disaster Prevention Research Institute, Kyoto University, 2.Faculty of Sciences, Kyushu University, 3.Graduate School of Science, Kyoto University, 4.Japan Meteorological Agency)