Résumé
Karstic aquifers are known for their high degree of nonlinearity and non-stationarity in their hydrodynamic behaviour. We used a transfer function approach (TFA) to interpret artificial tracer tests in Norville karst system (Normandy, France). The system’s behaviour is modelled as a conceptual reservoir with an assumed transfer function containing an ‘intrinsic’ part and a ‘boundary conditions dependent’ part. Additionally, a relationship between spring discharge and residence time distribution characteristics can be formulated. This constitutes new perspectives for testing pollution scenarios.