The study area located on the east of Duhok city, it is divided into three sub-basins: Hishkero in east, Semel middle, and Gregewr west, covers about 487 km2. historical record rainfall data Duhok-Semel from Seismology Directorate Meteorological Stations were used to calculate water balance parameters for period 2005-2006 2020-2021. It receives 559.6 mm rain during rainy months. This occurs acr...