Description of nine nutrient loss models: capabilities and suitability based on their characteristics

摘要: In EUROHARP, an EC Framework V project, which started in 2002 with 21 partners 17 countries across Europe, a detailed intercomparison of contemporary catchment-scale modelling approaches was undertaken to characterise the relative importance point and diffuse pollution nutrients surface freshwater systems. The study focused on scientific evaluation different approaches, were validated three core catchments (the Ouse, UK; Vansjo-Hobol, Norway; Enza, Italy), application each tool additional, randomly chosen Europe. tools involved differ profoundly their complexity, level process representation data requirements. include simple loading models, statistical, conceptual empirical model physics-based (mechanistic) models. results characteristics these are described. This includes analysis potential strengths weaknesses nutrient