| Abstrakt: |
Runoff occurs during different time periods after sporadic rainstorms in arid and semi-arid environments, which are characterized by highly variable rainfall rates and unpredictable periods of drought or floods. It should be noted that the problem with this research is that the exact amount of runoff in Al-Battikha Valley is unknown. Using water flow equations, a solution and understanding of this quantity was obtained. Therefore, the main purpose of this research was to evaluate the overall hydrological conditions and runoff amount of watersheds in Al-Battikha Valley basin. It is one of the largest valleys in Western Sahara. One of the most important results is that the rapid intervention model has proven to be a good tool for providing a platform for the hydrological cycle and showing the elements and variables affecting it in the region. HRUs are grouped land areas within a sub basin that are created by applying a slope, LULC layer, and soil layer containing different cutoff points to define individual, homogeneous, and distinct areas. Using the necessary data and the SWAT model from the ensemble (soil type, slope, LULC), the SWAT model separates each sub-basin into the lowest possible level, which is assumed to be a geographically homogeneous unit with respect to area. The average annual water volume is about 0.0393 m3, and the average annual stream flow is 0.0125 m3/s. Based on surface runoff, the estimated water volume was 0.0389 m3. There is variation in the average annual water volume that is determined by runoff and discharge as a result. Not all runoff water reaches or ends in the mainstream, and it is a bit steep. Further valleys and holes see less drainage than surface water flow. Peak runoff in Al-Battikha Valley basin is mostly observed from November through March, which is the winter season [ABSTRACT FROM AUTHOR] |
