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Document Type |
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Thesis |
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Document Title |
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Morphometric Characteristics of Wadi Al-Asla basin, Eastern of Jeddah City – Western of Saudi Arabia الخصائص المورفومترية لحوض وادي العسلاء شرقي مدينة جدة -غربي المملكة العربية السعودية |
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Subject |
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Morphometric Characteristics of Wadi Al-Asla basin, Eastern of Jeddah City – Western of Saudi Arabia |
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Document Language |
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Arabic |
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Abstract |
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This Thesis examined the morphometric, spatial and morphological characteristics of
the Wadi Al-Asala basin, east of Jeddah, using geographic information systems. The Shuttle
Radar Topography Mission (SRTM) satellite was adopted for Endeavor satellite, 2017. With
the aim of building a digital geographic database for the basin. This study shows the
significance of using modern techniques in geomorphic studies.
The area of the basin was 299.024 km2. The results of the morphological characteristics
of the basin showed that most grade basins tend to elongate and therefore are inconsistent in
shape. The value of circularity is 0.21, the shape coefficient is 0.41 and the Coalition
coefficient is 2.19. The extracted values of the first and second grade basins indicate that
they have a higher discharge peak than the major grades. This is because the running water
mass reaches in a single batch to the outlet of the basin, with high capacity. The lemniscate
Ratio of 0.61 indicates that it tends to pearly shape, away from the circular shape. It is
concluded that the pelvic cycle is still youngish.
The results of the histrionic characteristics show that the highly elongated ponds are
characterized by strong anchoring, which is the predominant characteristic of the third,
fourth and fifth grade basins, and that, the relationship between the reliefs and relative values
of the torsion and elongation is positive (or is direct). Topography is described as coarse,
indicating the affinity of river tributaries from each other. It is affected by drainage density
and river frequency.
The results of the morphometric characteristics of the river tributaries suggest that the
basin reached the sixth level, with a total of 2871 tributaries. The proximity of the drainage
density, river sloping and river frequency values indicate that the different levels of the
valley were exposed to the same climatic and structural conditions
The results of the morphometric characteristics of the river tributaries suggest that the
basin reached the sixth level, with a total of 2871 tributaries. The proximity of the drainage
density, sinuosity index and river frequency values indicate that the different levels of the
valley were exposed to the same climatic and structural conditions.
The researcher recommends to investigate the area hydrologically and to evaluate the
gravity to manage beforehand planning and benefit from the database set up about the
morphometric features of the basin. Furthermore, apply morphometric studies on basins in
Jeddah to build up a comprehensive database in terms of morphometric and hydrological
features. |
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Supervisor |
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Dr.Mohammad Hamza |
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Thesis Type |
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Master Thesis |
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Publishing Year |
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1439 AH
2018 AD |
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Number Of Pages |
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362 |
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Added Date |
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Friday, July 26, 2019 |
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Researchers
| صالح سالم السباحي | Alsibahi, Saleh Salem | Researcher | Master | |
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