*Glen Snyder¹, Ryo Matsumoto¹, Shinsuke Aoki³, Adrian Bodenmann⁴, Sangekar Mehul⁴, Blair Thornton⁴, Hitoshi Tomaru², Satoko Owari², Minori Chikada², Robert Brant⁶, Daniel Doolittle⁷, Stefan Williams⁵, Oscar Pizarro⁵ (1.Gas Hydrate Research Lab, Meiji Univeristy, 2.Dept. Earth Sciences, Chiba University, 3.Graduate School of Agriculture, Meiji University, 4.Institute of Industrial Science, The University of Tokyo, 5.Australian Centre for Field Robotics, The University of Sydney, 6.CSnet International Inc., 7.Fugro GeoConsulting Inc.)

*Ryo Matsumoto¹, Takao Ebinuma², Akihiro Hiruta¹, Naoto Ishida¹, Hitoshi Tomaru³ (1.Organization for the Strategic Laboratory of Research and Intellectual Properties, Meiji University, 2.Methane Hydrate Science, Graduate School of Engineering, Tottori University, 3.Dept of Earth Science, Faculty of Science, Chiba University)

*Hitoshi Tomaru¹, Yuki Honda¹, Ryo Matsumoto² (1.Department of Earth Sciences, Chiba University, 2.Gas Hydrate Laboratory, Meiji University)

*Atsushi Tani¹, Kyohei Yamada¹, Hitoshi Tomaru², Takeshi Oi³, Ryo Matsumoto³ (1.Graduate School of Science, Osaka University, 2.Graduate School of Science, Chiba University, 3.Gas Hydrate Laboratory, Meiji University)

*Hideki Numanami¹, Remi Warabi², Hitoshi Tomaru³, Mikio Satoh⁴, Ryo Matsumoto² (1.Department of Modern Home Economics, Faculty of Contemporary Human Life Science, Tokyo Kasei Gakuin University, 2.Organization for the Strategic Coordination of Research and Intellectual Properties, Meiji University, 3.Department of Earth Sciences, Chiba University, 4.National Institute of Advanced Industrial Science and Technology)

*Ryousuke Nakajima¹, Hitoshi Tomaru¹, Ryo Matsumoto², Yuki Honda¹ (1.Chiba University, 2.Meiji University)

*Ryohei Kameda¹, Hirose Natsumi¹, Hitoshi Tomaru¹, Ryo Matsumoto² (1.Faculty of Science,Chiba University, 2.Organization for the Strategic Laboratory of Research and Intellectual Properties, Meiji University)

*Natsumi Hirose¹, Ryohei Kameda¹, Hitoshi Tomaru¹, Ryo Matsumoto² (1.Department of Science, Chiba University, 2.Organization for the Strategic Laboratory of Research and Intellectual Properties, Meiji University)

*Yuki Honda¹, Hitoshi Tomaru¹, Satoko Owari¹, Ryo Matsumoto² (1.Chiba University, 2.Meiji University)

*Satoko Owari¹, Hitoshi Tomaru¹, Ryo Matsumoto² (1.Chiba University, 2.Organization for the Strategic Laboratory of Research and Intellectual Properties, Meiji University)

*Minori Chikada¹, Hitoshi Tomaru¹, Ryo Matsumoto² (1.Faculty of Science, Chiba University, 2.Organization for the Strategic Laboratory of Research and Intellectual Properties, Meiji University)

*Miyahara Reina¹, Taiki Mori¹, Akihiro Kano¹, Satoko Owari², Hitoshi Tomaru², Yoshihiro Kakizaki³, Yoshitaka Kakuwa³, Ryo Matsumoto³ (1.Kyushu University Graduate School of Integrated Sciences for Global Society, 2.Chiba University, 3.Meiji University)