Application of the NAM model to the Ali-Efenti basin

Abstract

This paper focuses on the simulation of single rainfall-runoff events in the Ali-Efenti basin, a subbasin of the Pinios river catchment. This region suffers from frequent floods causing problems to the downstream agricultural and urban areas. Three winter storm-events were selected for the rainfall-runoff simulations. The simulation is performed using the NAM model, a basic component of the DHI MIKE 11 package. The NAM hydrological model is a deterministic, conceptual, lumped model that consists of a set of linked mathematical statements, describing in a simplified quantitative form the behavior of the land phase of the hydrological cycle. The NAM model is based on semi-empirical equations, which describe the physical structures and procedures and as a lumped, it treats each catchment as a single unit. Two of the events were used for the calibration phase, while one was used for the verification giving results with good accuracy.