1. Department of Civil Engineering, Yokohama National University, Yokohama, Japan
2. Cold-Region Hydraulic and Aquatic Environment Engineering Research Group, Civil Engineering Research Institute for Cold Region, Sapporo, Japan
3. Coastal and Estuarine Sediment Dynamics Group, Port and Airport Research Institute, Yokosuka, Japan
4. Smart Construction Promotion Division, Komatsu Ltd., Tokyo, Japan
5. School of Civil and Construction Engineering, Oregon State University, Corvallis, USA