Development and validation of a process oriented catchment model based on dominating runoff generation processes

The conceptual rainfall runoff model TAC (tracer aided catchment model) has been developed based on the experimental results of a tracer hydrological investigation for the mountainous Brugga basin (39.9 km2). The model contai ns an extensive physically realistic description of the runoff generation, which includes seven unit types each with characteristic dominating runoff generation processes. These processes are conceptualised by different linea r and non-linear reservoir concepts. The model is applied to a period of 3. 2 years with good success. In addition, the model is validated with additio nal information, e.g, trace; concentrations, beside to the simulated discha rge. (C) 2000 Elsevier Science Ltd. All rights reserved.