*Dian Darisma^1,2、Yusuke Mukuhira³、Naoki Aoyogi⁴、Kyosuke Okamoto⁴、Takuya Ishibashi⁴、Hiroshi Asanuma⁴、Takatoshi Ito³ (1.Graduate School of Environmental Studies, Tohoku University, Sendai, Miyagi, 980-8572, Japan、2.Department of Geophysical Engineering, Universitas Syiah Kuala, Banda Aceh, Aceh, 23111, Indonesia、3.Institute of Fluid Science, Tohoku University, Sendai, Miyagi, 980-8577, Japan、4.AIST-FREA, Koriyama, Fukushima, 963-0298, Japan)