Comparison of Hydrological Platforms in Assessing Rainfall-Runoff Behavior in a Mediterranean Watershed of Northern Morocco

This research evaluates the applicability of different types hydrological models to simulate discharge behavior scenarios in a northern Moroccan watershed, Oued Laou Watershed (OLW). In this context, an improved understanding runoff mechanisms through modeling OLW can assist hazard risk management and facilitate effective planning water resources. For that end, multitude were used perform very efficient modelling, comparative approach was adopted. Comparison allowed determination potential sources uncertainty modelling subhumid watershed. Three (ATelier Hydrologique Spatialisé (ATHYS), Hydrologic Modeling System (HEC-HMS), Soil Water Assessment Tool (SWAT)) with characteristics employed for continuous approach. The calibrated validated using observed daily rainfall streamflow data 4 years (2004–2008) 3 (2009–2011), respectively. multi-criteria model comparison (R², NSE, RSR, PBIAS) showed all three are capable reproducing flows. SWAT performed well over both periods (NSE = 0.76 calibration), improvement validation 0.84). A good agreement also HEC-HMS outputs, approximately stable NSE 0.77 0.78 calibration phases, ATHYS value 0.67 during calibration, decrease 0.06 towards period. other performance criteria confirmed these findings. Additionally, results suggest semi-distributed conceptual particularly suitable given their physical heterogeneity. Generally, integration may be resources assessment OLW.