*Tam Dao¹、Yuichi Otsuka¹、Kazuo Shiokawa¹、Michi Nishioka²、Mamoru Yamamoto³、Suhaila M. Buhari⁴ (1.Institute for Space-Earth Environmental Research, Graduate school of Science, Nagoya University, Nagoya, japan.、2.National Institute of Information and Communication Technology, Tokyo, Japan、3.Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Japan.、4.Universiti Teknologi Malaysia, Malaysia)