4:15 PM - 4:30 PM
*Tsuyoshi TOYOSHIMA1, Akiko KANEYA1, Yasuhito OSANAI2, Sotaro BABA3, Tomokazu HOKADA4, Nobuhiko NAKANO2, Tatsuro ADACHI2 (1.Niigata University, 2.Kyusyu University, 3.University of the Ryukyus, 4.National Institute of Polar Research)