A simple topography-driven, calibration-free runoff generation model

Hongkai Gao1, Christian Birkel2,3, Markus Hrachowitz4, Doerthe Tetzlaff5, Chris Soulsby6 and Hubert H G Savenije4, (1)Arizona State University, Tempe, AZ, United States, (2)University of Costa Rica, San José, Costa Rica, (3)University of Aberdeen, Aberdeen, United Kingdom, (4)Delft University of Technology, Delft, Netherlands, (5)Northern Rivers Institute, University of Aberdeen, Aberdeen, United Kingdom, (6)School of Geosciences, University of Aberdeen, Aberdeen, United Kingdom