4:15 PM - 4:38 PM
*Mamoru Yamamoto1, Yasunobu Ogawa2, Kazuo Shiokawa3, Akimasa Yoshikawa4 (1.Research Institute for Sustainable Humanosphere, Kyoto University, 2.National Institute of Polar Research, 3.Institute for Space-Earth Environment Research, Nagoya University, 4.Department of Earth and Planetary Sciences / ICSWSE, Kyushu University)