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Accueil du site → Master → Egypte → Hydrogeological Assessment and Water Resources Management of Hodein and Rahaba Hydrographic Basins, Halaib-Shalatin Area, South Eastern Desert, Egypt

Ain Shams University (2021)

Hydrogeological Assessment and Water Resources Management of Hodein and Rahaba Hydrographic Basins, Halaib-Shalatin Area, South Eastern Desert, Egypt

Ragab,Rania Mohsen Mohamed.

Titre : Hydrogeological Assessment and Water Resources Management of Hodein and Rahaba Hydrographic Basins, Halaib-Shalatin Area, South Eastern Desert, Egypt \

Auteur : Ragab,Rania Mohsen Mohamed.

Etablissement de soutenance : Ain Shams University

Grade : Master of Science in Geology (Hydrogeology) 2021

Résumé partiel
Water scarcity is the main problem in arid and semiarid regions such as Halaib-Shalatin area, southeastern part of the Eastern Desert. The present work concerning with study of the water resources which represent very vital for developing new Settlements and domestic infrastructures. In the present study several controlling factors on the water resource such as geomorphologic features, geologic setting, soil characteristics, hydromorphometric analysis, climatic condition, runoff estimation, hydrogeologic condition, hydrochemical characteristics and quality evaluation of surface and groundwater. Nonconventional methods and techniques are applied to study these controlling factors such as Enhanced Thematic Mapper Plus (ETM+) landsat satellite images (EarthExplorer), geographic information systems,The SRTM 90 m DEM’s have a resolution of 90 m and Watershed Modeling System (WMS 8.4 @ Aquaveo). Rahaba - Hodein surface areas are built up of Precambrian basement rocks, Upper Cretaceous rocks and Quaternary deposits. The elevation of the study area ranged from 2 to 1400 m above sea level with slope degree less than 5° (very gentle) at down stream portions and slope degree more than 35° (very steep) at up stream portions. The Red Sea Mountains represent about 80 % of the surface area which represent the most important groundwater bearing due to its great extension and high fracture system in the form of igneous and metamorphic rocks. The mean annual precipitation ranges between 25-100 mm. Quantification of surface runoff estimated from rainfall depth by using HEC-1 (SCS) and TR-55 Modelling from WMS 8.4© (Watershed Modeling System). Hutib subbasin has the highest peak and runoff values but flash flood probability is low. Al Abyad sub-basin has the high peak and runoff values and flash flood probability is very high, so some dams and dykes must be constructed at the crossing point between the third and fourth stream order for infiltrating and recharging the shallow aquifer. Kirayjah, Naam, El Dif and Madi sub-basins have high peak and runoff values, these basins reflect high probability of flash flood. The suggested protection system at Hodein catchment area must be at Kirayjah sub-watershed. Appling weighted spatial probability model (WSPM) for determining the potential sites for runoff water harvesting. High tovery high runoff water harvesting potentiality classes are occupied Rahaba main channel and El Dif Hodein sub-basin. The optimum area for water resources/land use and groundwater recharge in Rahaba basin is Hutib sub-watershed and El Naam, El Dif and Emrit Hodein sub-watersheds. The water resources in the study area are Shalatin sea water desalination plant for domestic purposes, the drinking water and cooking water are brought from vehicles transport water from the city of Idfo on the River Nile to Shalatin and natural springs, hand dug wells and shallow drilled wells.

Présentation étendue (EULC)

Page publiée le 3 mars 2022