17 European catchments where used to test 9 different quantification tools/models in the EU-funded EUROHARP-project. All models where applied in 3 of the catchments, while only selected tools in the 14 other catchments. Results from the application in the individual catchments can be accessed by clicking the locations of the catchments (orange spots) in the map. Catchments can also be searched for by other properties than their location (size, altitude, precipitation, etc), by pressing the hyperlink below.