*石田 哲朗¹、Felix Mark²、Castro Ellison²、Namuco Shielo²、Felicio Francisco²、Merida Harry²、Vergel Kaye²、Perez Gay²、Marciano Joel^3,4、高橋 幸弘¹ (1.Faculty of Science, Hokkaido University、2.Institute of Environmental Science and Meteorology, University of the Philippines Diliman、3.Advanced Science and Technology Institute, Department of Science and Technology、4.Electrical and Electronics Engineering Institute, University of the Philippines Diliman)