1. Graduate School of Civil Engineering, Tohoku University , 6-6-06 Aoba, Sendai 980-8579, Japan
2. Water Resources Engineering Research Group, Institut Teknologi Bandung , Jalan Ganesha 10, 40132, Indonesia
3. Graduate School of Engineering, Tohoku University , 6-6-06 Aoba, Sendai 980-8579, Japan
4. International Research Institute of Disaster Science, Tohoku University , 468–1 Aoba, Sendai 980-8579, Japan