Assessing the Goodness of Fit of lumped and distributed daily implémentations of conceptual hydrological model at the Raghay catchment (North Western Tunisia)

Gara, Ahlem [INAT, University of Cathage, Tunisia] Gader, Khouloud [INAT, University of Carthage, Tunisia] Jendoubi, Donia [CDE, University of Bern, Switzerland] Khlifi, Slaheddine [GRES, ESI Medjez el Bab, University of Jendouba, Tunisia] Vanclooster, Marnik [UCL] Bouvier, Christophe [IRD, University of Montpellier II, France]

We illustrate in this paper the added value of the spatial distribution of rainfall and Potential Evapotranspiration (PE) in the preduction of the discharge for a sub-watershed located in the high valley of the Medjerda basin. We therefore compare the model performance of a conceptual model using global and spatial distributed input data. We used the spatially distributed conceptual hydrological model available in the ATHYS Platform.