نمذجة المخاطر الهيدرولوجية لحوض وادي سهيل في قضاء الشرقاط

Abstract

This research aims to study the hydrological hazards of the Suhail Valley Basin in Al-Shirqat District, covering an area of 226.53 km², which flows into the Tigris River. It is bounded to the east by the Makhmur Fold, to the south by Al-Lina Valley, to the west by the Tigris River, and to the north by Al-Bir Valley. Geographically, it is located between the longitudes(43,16,0-34,32,5) East and the latitudes (35,25,30-35,36,0 ) North.The study assessed hazards using a multi-variable method for hydrological risks in the main basin as well as its sub-basins. Three hazard models were identified, each is analyzed using specific variables.The first model involved analyzing multiple variables in the main basin.The second model focused on morphometric variables in the sub-basins.The third model analyzed quantitative and temporal variables using Snyder's method.The study concluded that the degree of risk varied according to each model, ranging from high, moderate, to low risk. The risk levels for each model were as follows: First model: 38-84% Second model: 45-60% Third model: 60-84%.