Changming Li, South China University of Technology, State Key Laboratory of Subtropical Building and Urban Science, School of Civil Engineering and Transportation, Guangzhou, China, Jinghua Xiong, Tsinghua University, State Key Laboratory of Hydro-Science and Engineering, Department of Hydraulic Engineering, Beijing, China, Juntai Han, Tsinghua University, State Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Beijing, China, Zhuoyi Tu, Hohai University, Key Laboratory of Soil and Water Processes in Watershed, College of Geography and Remote Sensing, Nanjing, China and Ziwei Liu, National University of Singapore, Department of Civil and Environmental Engineering, Singapore, Singapore