Investigation of Groundwater Potential Zones in Hard Rock Terrain, Wadi Na'man, Saudi Arabia

• DOI: 10.1111/gwat.12870
• Publication Date: 2019-02-18T06:54:43Z
• Authors: Bander A.M. Algaydi; Ali M. Subyani; Mohamed H.M.M. Hamza
• Keywords: Wadi; Thematic map; Lineament

In arid and hyper-arid zones, groundwater exploration is one of the most significant ways to locate potential new water supplies. Geophysical prospecting currently successfully used method for locating supplies, but it rather costly. Satellite remote sensing (RS) detection, however, with its integration Geographic Information Systems (GIS) provides best chance identifying initially evaluating water-bearing formations. western part Saudi Arabia, Wadi Na'man has centuries been major sources city Makkah Al-Mukarramah. It therefore very important find appropriate (GP) zones in this wadi supply. This study utilizes RS GIS techniques, also studies hydrogeological, geological, geomorphological characteristics that have impact on occurrence Na'man. Representative layers are generated each component given a weight ratio depends level influence. The overlay these thematic was produce map shows promising areas classifies local potentials as either low, medium, or high. results reveal overall-rated "promising" (i.e., classified medium high) represent approximately 17-25% total basin area consist mainly Quaternary sediments connected fractured rock areas.