3:30 PM - 4:45 PM
*Daisuke Hirano1, Yasushi Fukamachi2, Eiji Watanabe3, Katsushi Iwamoto4, Kay I. Ohshima2, Takeshi Tamura1 (1.National Institute of Polar Research, 2.Institute of Low Temperature Science, Hokkaido University, 3.Japan Agency for Marine-Earth Science and Technology, 4.Mombetsu City)