Publication Date
Mon Jan 01 2024
Journal Name
Pakistan Journal Of Life And Social Sciences (pjlss)
Risks of Gully Erosion in Valley (Wadi) Mazrwan Basin in Erbil Governorate Within Kurdistan Region of Iraq
Mazrwan Valley
Erbil Governorate
Geography
Erbil
Kurdistan Region.
Publication Date
Sat Oct 18 2025
Journal Name
مجلة العصر للعلوم الانسانية والاجتماع
Estimation of Flow Volume in Wadi Harran Basin in Eastern Iraq Using the SCS-CN Method
Surface Runoff
Runoff Volume
Hydrological Soil Types
Wadi Harran
GIS.
Surface runoff is considered one of the most significant water resources in arid and semi-arid environments. Estimating the volume of surface runoff through the application of Geographic Information Systems (GIS), along with maps detailing the geomorphological and geological characteristics of the Wadi Haran basin, is an essential process. This estimation is supported by mathematical equations based on the Soil Conservation Service Curve Number method (SCS-CN), which is among the most widely used approaches for calculating runoff volume. The study area, Wadi Haran basin, covers approximately 1,895 km². The Curve Number (CN) was found to be 92, with runoff volume (QV) values ranging between 582.71 m³ and 12.85 m³. The total surfa
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