Comparison of hydrological models in upper Aras Basin

The increasing importance of water resources planning and management each day has led to a widespread use of hydrologic modeling. Especially in Turkey, where the headwaters of drainage basins are located around mountainous areas, snowmelt dominates streamflow during spring months which makes modeling applications important and necessary. In this study, two different conceptual hydrologic models insert ignore into journalissuearticles values(HEC-HMS and HBV); are compared during 2008-2015 water years in the mountainous headwaters of Aras Basin, located in eastern Turkey. For both models, performance on runoff using Nash-Sutcliffe Efficiency is above 0.8 and 0.7 for calibration and validation respectively. This first conceptual hydrologic modeling implementation and comparison in Aras Basin did indeed give promising results as well as suggesting to consider other variables beside streamflow.