Figure 3: Evaluating the consistency of the geomorphic floodplain model with respect to a flood hazard map.
From: GFPLAIN250m, a global high-resolution dataset of Earth’s floodplains
Example of floodplain mapping in Europe using two paradigms. (a) Flood hazard event-based mapping using hydraulic simulations of the 200-year synthetic flood design (red color by European Commission, Joint Research Centre). (b) Geomorphic floodplain map (blue color). (c) Evaluation of the GFPLAIN250m dataset is performed by varying the b parameter of the geomorphic scaling law and performing a quantitative comparison with the reference dataset using a measure-of-fit (MOF) index17. Box plots represent the statistics of the MOF index obtained by comparing the GFPLAIN250m floodplain zoning with respect to flood hazard zones for European basins of different stream orders.
