DRAINAGE BASINS AND FLASH FLOOD HAZARDS IN AL-AIN AREA, UNITED ARAB EM IRA TES
Abstract
Fla h flood strike different parts of Al-Ain area virtually every year causing
Serious property loses this study investigates the main factors control ling this
Flooding, namely. (a) Climate, (b) geomorphology, and (c) hydrogeology
Climatically, mo t of rainstorms do occur during the month of February.
Geomorphologic ally, the landforms and drainage systems are the main factors.
Hydrogeological, twenty basins were carefully identified and their morphometric
Parameters were measured the relations between these morphometric parameters and flash floods were accordingly assessed.
The results show that most severe damage did occur in buildings and farms in Al Ain Area the most influential sources of floodwaters are Zarub gap and Wadi Al-Ain.The eastern foot slope of the eastern hogback of Jabal Hafit is the highest risk zone of the Investigated area
The channelized course of Wadi Al-Ain is satisfactory for the t i me being as itsCapacity exceeds t hat of the highest floods of the last few years, but the course originating at Zarub should be appropriately managed. The study shows also, that the distribution of the t race heavy metals Cu, Zn, and Pb in the area is directly related to the drainage system, and should be carefully monitored to avoid possible health hazards