Surface runoff modeling of the eastern valley basins in Wasit Governorate

Abstract

The research aims to study surface runoff modeling for the eastern valley basins in Wasit Governorate, as the valley basins receive seasonal rainfall amounts that are classified as heavy rain waves capable of generating surface runoff in large quantities. Measuring and determining the hydrological budget for the valley basins is based on estimation, as there are no stations. Hydrometry to measure the volume of flow. There are many different methods that have been found to estimate surface runoff in valley basins, and one of the most important and most widely used of these methods is the (SCS-CN) method, which was developed by the US Soil Conservation Service. It is the most accurate method and is used in a wide range of areas. Researchers estimate the amount of direct runoff from a rainstorm.