Publications internationales
Résumé: The Madjez Ressoul watershed, located in Algeria (A = 103 km2), provides a unique opportunity to investigate the accurate prediction of flood hydrographs in a natural setting and relatively untouched environment. Its particularity is an excellent option for simplified rainfall–runoff models due to the potential reduction in model complexity and data requirements. This study applies the Hydrologic Engineering Center’s Hydrologic Modeling System model to simulate 36 year rainfall–runoff modeling (1973–2009). The originality of this study lies in employing experimental infiltration data to improve rainfall–runoff prediction. The study offers valuable insights into the hydrological behavior of the Madjez Ressoul watershed by integrating advanced methods and tools when analyzing hydrological responses. Effective calibration refines the model’s ability to predict flow dynamics by adjusting various parameters. Various methods were selected to simulate hydrological processes, including the soil conservation service-curve Number, SCS unit hydrograph, Muskingum, recession baseflow, and channel loss. The model was tested on many continuous events, and the results revealed a good fit between the simulated and observed discharge data. This evaluation was performed using four criteria (the Nash Sutcliff test, root mean square error, percent bias, and correlation coefficient), indicating reasonable accuracy of the model correlation. Using the findings of this study can aid in providing a better knowledge of water flow dynamics in the Madjez Ressoul watershed by opening up new possibilities to inform the development of flood risk management techniques that have the potential to mitigate the adverse effects of floods on the environment.