Hydrological Analysis to Estimate the Volume of Surface Runoff according to the Application of Snyder's Model for Wadi Sham Beilan Basin
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Abstract
Many studies were interested in estimating torrential volumes and their severity depended on mathematical models and relationships as a result of the difficulty in estimating torrential rain waves from water basins, as they need to provide field equipment and measurement devices, in addition to the difficulty of measuring discharge during the rainstorm period in the absence of monitoring devices in most of these basins.
At the present time, there are many methods that deal with the application of mathematical relations to estimate the volume of surface runoff and determine the hydrological risks resulting from it in the form of hydrographs, as a result of their becoming better available, as helped by geographic information systems programs, remote sensing, and their modern digital satellite-visual data and digital elevation models (DEM). ) and the hydrograph unit created by Sherman (1932) is a set of coordinates for the time of discharge and is derived directly from measured basins. As for the hydrograph unit derived from unmeasured water basins, equations and relationships with defined coefficients are used to determine the discharge at any point in the hydrograph, and these used coefficients have a value Hydrological, such as the hydrograph time to reach the peak discharge and the volume of the flow, and the coefficients can be estimated from data for measured basins or natural data for the basins.
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References
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