This supplementary material presents the cost-performance grid and the detailed results of the evaluation for the selected study cases. We also present a general layout of the designed online survey to collect information on more modeling approaches. Samela et al. (2017) Ohio River basin, (calibration) Continental U.S. (application) 529 000 km 2 Geomorphic classifiers, GFI Samela, et al. (2017) Geomorphic Flood prone area map 90m
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