11:15 AM - 11:30 AM
*Kenta ISHII1, Yukako IMAI2, Masanori KANZAWA3, Yuji KUWAHARA4 (1.Depertment of Urban and Civil Engineering, Ibaraki University, 2.Graduate School of Science and Engineering, Ibaraki University, 3.U-DOM co., Ltd., 4.Center for Water Environment Studies, Ibaraki University)