Estimating the volume of runoff and its runoff risks in the Wadi Al-Marj Basin using the (SCS-CN) model
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Abstract
The study dealt with the Al-Marj Basin, located in the Western Plateau, where seasonal rainfall prevails in the region because the region is within the range of arid and semi-arid regions, which is sometimes insufficient to generate surface runoff, except when the precipitation is in the form of sudden storms that work to generate surface runoff, and this rain Not all of them create surface runoff because they are exposed to filtration, evaporation, and absorption by plants, in addition to many factors related to the soil, including permeability, porosity, land cover, slope, and land uses. There are many methods to estimate the volume of surface runoff, including the soil conservation model (CN-SCS).Relying on the American soil conservation hypothesis, relying on soil hydrology and land cover classification, relying on spatial analysis tools for remote sensing data and geographic information systems, for the purpose of extracting information about natural resources and land use classification, based on satellite data (Land sat OLI 8) dated 15 /4/2023, and (Arc Map 10.7) program. and apply equations to measure the USDA runoff (CN) curve (USDA, 1986, p.2-1).
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References
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