*Muga Yaguchi¹, Takeshi Ohba² (1.Meteorological Research Institute, JMA, 2.School of Science, Tokai University)

*Hirochika Sumino^1,2, Masashi NAGAI², Takashi Hirose², Takahiro Miwa², Muga Yaguchi³ (1.Research Center for Advanced Science and Technology, The University of Tokyo, 2.National Research Institute for Earth Science and Disaster Resilience, 3.Meteorological Research Institute)

*Akihiko Terada¹, Kai Wakamatsu¹, Noriaki Mizutani¹, Hirochika Sumino², Tomoya Obase⁴, Takeshi Ohba³, Masanori Takahashi¹, Muga Yaguchi⁵, Yuki Takahashi¹ (1.Volcanic Fluid Research Center, School of Science, Tokyo Institute of Technology, 2.Research Center for Advanced Science and Technology, University of Tokyo, 3.Department of Chemistry, School of Science, Tokai University, 4.Department of Earth and Planetary Sciences, Faculty of Science, Hokkaido University, 5.Meteorological Research Institute, Japan Meteorological Agency)