“…Based on these results, this model is suitable for use in simulations of hydrology in the Gilgel Abay watershed. Including the modeling carried out in the Al-Adhaim, Northern Iraq, watershed, the results of R 2 are quite good at 0.92 [18,30]. Similarly, Barbosa [12] has seven different formulas to investigate hydrological performance with the HEC-HMS method: MAE, RSR, RMSE, NSE, R 2 , KGE, and PBIAS, which finally succeeded in obtaining the conclusion that the HEC-HMS model can represent hydrological processes on the distribution of watersheds investigated effectively, efficiently, and with good accuracy.…”