Torrential flood hazards and management, in Wadi Aday Muscat area, Sultanate of Oman, a GIS and Remote Sensing approach

Flash flood hazards of Wadi Aday threaten human activities in an important urban area of Muscat city, the capital of Sultanate of Oman. To evaluate and mitigate these floods; Remote Sensing (IKONOS Images), Topographic and Cadastral maps, data of rainfall, floods and other data sources have been used and manipulated under a GIS environment. The study determined the areas under the flood risk, and clarified the risk class and degree for each of human activities object in the lower part of Wadi Ady. In order to mitigate the flood hazards, and to utilize the floods water in like extreme hot desert area; the study suggested: establishing two dams and artificial channel added to some methods that reduce the erosion on canyon reach road.