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Document Type |
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Article In Journal |
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Document Title |
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Assessment of surface runoff in arid, data scarce regions; an approach applied in تقييم الجريان السطحي ، بمناطق قاحلة ذات بيانات نادرة ، منهج مطبق على وادي الحمض ، المدينة المنورة ، المملكة العربية السعودية . |
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Subject |
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Water Resources |
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Document Language |
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English |
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Abstract |
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Protection of Al Madinah Al Munawarah from the environmental hazardous as flash flood is very serious task. Assessment of surface runoff is very important for the catchment management. Usually, the application of hydrologic models in arid regions is faced by scarcity in the required data that may not allow for the application of rainfall-runoff models. This is also true for the western coast of Saudi Arabia which receives good amounts of flash floods that occur as a consequence of excessive rainfall which occasionally causing major loss of property and life. Wadi Al Hamd basin which is consider the major basin in Al Madinah Al Munawarah, is located in the western region of Saudi Arabia and characterized by extremely arid conditions. The aim of this study is to provide a general framework for assessing runoff and abstraction estimations that can be applied in arid regions despite the scarcity of data through the integration between Geographic Information System (GIS), morphometric parameters and very scarce data measurements. In this study, ASTER data were used for preparing digital elevation model (DEM) 30 m resolution, and GIS was used in evaluation of linear, areal and relief aspects of morphometric parameters. The major parameters such as watershed boundary, flow accumulation, flow direction, flow length, stream ordering were prepared using ArcHydro Tool. Surface Tool in ArcGIS-10 software was used to create different thematic maps such as DEM, contour, slope aspect and hill shade maps. Depending on the morphometric parameters that consider controlling factors of surface runoff, a hazard map of the study basin was created. Depending on Storm water Management and Design Aid (SMADA6) and scarce available measurements of rainfall and runoff a synthetic hydrographs and rainfall runoff modeling of the study sub basins were generated. The direct runoff ranged from 9% to 24% of the total rainfall. |
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ISSN |
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1097-8135 |
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Journal Name |
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Life Science Journal |
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Volume |
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11 |
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Issue Number |
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4 |
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Publishing Year |
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1435 AH
2014 AD |
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Article Type |
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Article |
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Added Date |
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Thursday, March 27, 2014 |
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Researchers
| مجدي محمود المغربي | El Maghraby, Magdy | Investigator | Doctorate | magdy_elmaghraby@yahoo.com |
| ميلاد حليم زكي مسعود | Masoud, Milad Halim Zaki | Researcher | Doctorate | mhmasoud@kau.edu.sa |
| برهان عبدالكبير نيازي | Niyazi, Burhan | Researcher | Doctorate | niyazi_burhan@hotmail.com |
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