Determination of groundwater availability in shallow arid region aquifers utilizing GIS technology: a case study in Hada Al-Sham, Western Saudi Arabia |
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| Authors: | A S El-Hames K A Al-Ahmed |
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| Institution: | (1) Department of Hydrology and Water Resources Management, King Abdulaziz University, P.O. Box 80208, Jeddah 21589, Saudi Arabia |
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| Abstract: | A simple, physically based method is developed in this paper to assist in the allocation of areas with high groundwater potential and for the determination of maximum allowed pumping rate to ensure proper groundwater management. This method utilizes the aquifer physical properties as well as GIS technology to accomplish this purpose. The design of this method was considered to be applicable in areas with little data, such as in most arid regions. This technique was applied to a catchment in an arid environment where qualitative as well as quantitative analyses of the results were undertaken. Locations of available groundwater and rates of maximum allowable pumping were compared with observations and experiments in the field and a good agreement was found. It was concluded that the best groundwater location was in the alluvial area, which represents only 16% of the total aquifer, which is a typical case in arid region catchments. The rate of maximum pumping was estimated to be 65 m3/h. However, to benefit 55% of the area, the maximum pumping rate should only be 40 m3/h with an average rate throughout the area (55%) of about 24 m3/h.This revised version was published online in December 2004 with corrections to the category. |
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| Keywords: | Arid regions Geographic information system Groundwater availability Groundwater management Pumping rate |
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