1. Undergraduate student, Department of Systems Innovation, University of Tokyo, 7-3-1 Hongo, Bunkyoku, Tokyo 113-8656, Japan
2. Ph.D. course student, Department of Ocean Technology, Policy, and Environment, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa 277-8563, Japan
3. Professor, Department of Ocean Technology, Policy, and Environment, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa 277-8563, Japan
4. Master course student, Department of Ocean Technology, Policy, and Environment, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa 277-8563, Japan
5. Senior researcher, Chigasaki Research Institute, Electric Power Development Co., Ltd., 1-9-88 Chigasaki, Chigasaki 253-0041, Japan