*NHUT VU LUU¹, KUNIHISA NAKAJIMA¹ (1. JAEA)

*Satoshi Utsunomiya¹, Shinya Yamsaki², Kenji Horie³, Mami Takehara³, Toshihiko Ohnuki⁴, Gareth Law⁵, Bernd Grambow⁶, Rodney C. Ewing⁷ (1. Kyushu University, 2. University of Tsukuba, 3. National Institute of Polar Research, 4. Tokyo Institute of Technology, 5. University of Helsinki, 6. University of Nantes, 7. Stanford University)

*Haruki Nishida¹, Kosei Hashimoto¹, Toshimasa Ohashi¹, Takahiko Sugiyama¹ (1. Nagoya Univ.)

*Risa Motoyama^1,2, Hiroshi Hinai^1,2, Yoshikazu Koma^1,2, Shinichi Kitawaki^1,2 (1. JAEA, 2. IRID)