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Article

Spatial and Temporal Changes of Groundwater Storage in the Quaternary Aquifer, UAE

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National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
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Civil and Environmental Engineering Department, College of Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
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Ministry of Energy and Industry, Abu Dhabi P.O. Box 59, United Arab Emirates
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American University of Ras Al Khaimah, Ras Al Khaimah P.O. Box 10021, United Arab Emirates
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Author to whom correspondence should be addressed.
Academic Editor: Linda Luquot
Water 2021, 13(6), 864; https://doi.org/10.3390/w13060864
Received: 6 February 2021 / Revised: 9 March 2021 / Accepted: 19 March 2021 / Published: 22 March 2021
(This article belongs to the Special Issue Hydrogeochemistry in Coastal Aquifers)
To study the temporal and spatial variations of the groundwater quantity and quality in response to intensive groundwater exploitation from the Quaternary aquifer in UAE, a water budget model with a cell size of one km2 was developed. The available historical records of groundwater levels and salinity have been used to develop the water table and salinity maps of UAE for the years 1969, 2005, 2010, and 2015. The available water resources and soil information system was used to facilitate validity, cogency, and consistency of the groundwater analysis. The spatial analysis module of GIS was used to define the aquifer setting, saturated thickness, aquifer base elevation, effective porosity, and groundwater salinity at each grid cell. The obtained results indicated that the volume of fresh groundwater resources in the Quaternary aquifer in UAE has decreased from 238 km3 in 1969 to around 10 km3 in 2015. A major part of these depleted fresh groundwater resources was replaced by brackish water, and, therefore, the total groundwater storage in this aquifer has only decreased from 977 in 1969 to 922 km3 in 2015, respectively. If the same groundwater exploitation continues, the freshwater storage in the surficial aquifer might be totally depleted in agricultural areas. Most probably, the brackish groundwater resources will be exploited. In such areas, more attention should be devoted to the management of brackish water resources to avoid the exacerbation of the saltwater intrusion problem. Despite the fact that the obtained results indicate the negative impacts of the improper water resources management in a small part of the arid area, the learned lessons are valid for other arid countries, in particular, using the proper steady state boundary conditions for the initial conditions in modeling the available future management alternatives. View Full-Text
Keywords: groundwater storage; groundwater recharge; managed aquifer recharge; water budget model; UAE groundwater storage; groundwater recharge; managed aquifer recharge; water budget model; UAE
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MDPI and ACS Style

Sherif, M.; Sefelnasr, A.; Ebraheem, A.A.; Al Mulla, M.; Alzaabi, M.; Alghafli, K. Spatial and Temporal Changes of Groundwater Storage in the Quaternary Aquifer, UAE. Water 2021, 13, 864. https://doi.org/10.3390/w13060864

AMA Style

Sherif M, Sefelnasr A, Ebraheem AA, Al Mulla M, Alzaabi M, Alghafli K. Spatial and Temporal Changes of Groundwater Storage in the Quaternary Aquifer, UAE. Water. 2021; 13(6):864. https://doi.org/10.3390/w13060864

Chicago/Turabian Style

Sherif, Mohsen; Sefelnasr, Ahmed; Ebraheem, Abdel A.; Al Mulla, Mohamed; Alzaabi, Mohamed; Alghafli, Khaled. 2021. "Spatial and Temporal Changes of Groundwater Storage in the Quaternary Aquifer, UAE" Water 13, no. 6: 864. https://doi.org/10.3390/w13060864

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