1. School of Renewable EnergyNorth China Electric Power University Beijing China
2. Key Laboratory of Water Cycle and Related LandSurface ProcessInstitute of Geographic Science and Natural Resources Research, Chinese Academy of Science Beijing China
3. State Key Laboratory of Hydraulic Engineering Simulation and SafetyTianjin University Tianjin China
4. Department of Geosciences and GeographyUniversity of Helsinki Helsinki Finland
5. State Key Laboratory for Information Engineering in Surveying, Mapping and Remote SensingWuhan University Wuhan China
6. Institute for Atmospheric and Earth System Research, Faculty of ScienceUniversity of Helsinki Helsinki Finland