4:15 PM - 4:30 PM
*Fukuyo Naoto1,2, Yusuke Yokoyama1,2, Geoffrey Clark3, Kaoru Kubota4, Yosuke Miyairi2, Naoko Sugihara2, Shirai Kotaro2, Tomihiko Higuchi2, Toshihiro Miyajima2 (1.Earth and Planetary Science Department, Graduate school of Science, The University of Tokyo, 2.Atmosphere and Ocean Research Institute, The University of Tokyo, 3.Archaeology and Natural History, College of Asia and the Pacific, The Australian National University, 4.Institute for Space-Earth Environmental Research, Nagoya University)