9:30 AM - 9:45 AM
*Tomomi Kani1, Yukio Isozaki2, Keiji Misawa3, Akira Ishikawa2, Shigekazu Yoneda4 (1.Earth and Environmental Science Kumamoto University, 2.The University of Tokyo, 3.National Institute of Polar Research, 4.National Museum of Nature and Science)