*Ryuji Asami¹, Taketo Matsumori², Shinji Ishihara¹, Akira Kinjo¹, Tohru Naruse³, Masaru Mizuyama², Yuji Ise⁴, Takashi Sakamaki⁵ (1.Department of Physics and Earth Sciences, University of the Ryukyus, 2.Graduate School of Engineering and Science, University of the Ryukyus, 3.Tropical Biosphere Research Center, University of the Ryukyus, 4.Graduate School of Science, Nagoya University, 5.School of Engineering, Tohoku University)

*Ryu Uemura¹, Satoru Mishima¹, Kanako Oomine¹, Ryuji Asami¹, Chen Jin-Ping², Chuan-Chou Shen² (1.University of the Ryukyus, 2.Dept. of Geosci., National Taiwan University)

*Ryuji Asami¹, Matsumi Yoshimura¹, Shogo Minei¹, Chuki Hongo², Kazuhiko Fujita¹ (1.Department of Physics and Earth Sciences, University of the Ryukyus, 2.University of the Ryukyus)