*Kenya KODAMA1, Yasuhito SEKINE1, Takahiro IINO2, Kazuya SAIGO3, Yasuko KASAI4, Hideo SAGAWA5, Hiroyuki MAEZAWA6
(1.Dept. Complexity Sci. and Engr. Univ. of Tokyo, 2.Solar-Terrestrial Environment Laboratory,Graduate school of science,Nagoya University, 3.National Astronomical Observatory of Japan, 4.Senior Researcher Global Environment Division National Institute of Information and Communications, 5.National Institute of Information and Communications Technology, 6.Department of Physical Science Osaka Prefecture University)