*Wataru Sano¹, Kazuhiko Fujita², Shoko Hirabayashi¹, Yusuke Yokoyama³, Yosuke Miyairi³, Lauren Trent Toth⁴, Richard Aronson⁵, Hironobu Kan¹ (1.Graduational School of Integrated Sciences for Global Socienty, Kyushu University, 2.Faculty of science, University of Ryukyus, 3.Atmosphere and Ocean Research Institute, The University of Tokyo, 4.U.S. Geological Survey, 5.Florida Institute of Technology)