2:50 PM - 3:05 PM
*Yuki TAKANO1, Kei YOSHIMURA2, Michio MURAKAMI3, Takeshi UEMURA4 (1.Dept. of Earth and Planetary Phys., Univ. Tokyo, 2.Atmosphere and Ocean Research Institute, Univ. Tokyo, 3.IIS, Univ. Tokyo (Present address: School of Medicine, Fukushima Med. Univ.), 4.Kaijo Junior and Senior High School)