Estimation of the volume of surface runoff using the (SCS-CN) method for Wadi Abu Hadair Basin

Abstract

The Abu Hadair Basin of the seasonal valleys, with an area of (2960.01) km2 and a length of (102.98) km, is located in the Samawah desert in southwestern Iraq. It seeps into the groundwater recharge, creating good places for storing groundwater on which it mainly depends the American soil conservation hypothesis, which is known as (SCS-CN) was relied upon to estimate the volume of surface runoff to determine the type of hydrological soil and to determine the type of vegetation cover and the type of ground detectors of rocks, soil and natural vegetation to count the division of the basin into two categories (D, C) and by estimating the highest rain storm Daily for the study area that works to generate surface run-off and torrents that cross the area and the consequences thereof through the uses of the land in the study area.