Guanheng Zheng, Tsinghua University, Department of Hydraulic Engineering, Beijing, China, Yuting Yang, Tsinghua University, State Key Laboratory of Hydro-Science and Engineering, Department of Hydraulic Engineering, Beijing, China, Dawen Yang, Tsinghua University, State Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Beijing, China and Baptiste Dafflon, Lawrence Berkeley National Laboratory, Earth and Environmental Sciences, Berkeley, CA, United States