Quantitative and Qualitative Assessment of Seawater Intrusion in Wadi Ham under Different Pumping Scenarios
Publication: Journal of Hydrologic Engineering
Volume 19, Issue 5
Abstract
Arid coastal regions are more vulnerable to groundwater deterioration problems. Intensive groundwater abstraction from the coastal aquifer of Wadi Ham, United Arab Emirates, caused a severe saltwater intrusion problem. Given the deterioration of groundwater quality, domestic water supply from well fields have been terminated and replaced by desalinated seawater. In addition, many farms in southeast Fujairah city have been abandoned. This paper develops a two-dimensional finite element groundwater flow and solute transport model to simulate the spatial and temporal variations of the salinity distribution in the coastal aquifer of Wadi Ham, taking into account the transition zone between freshwater and seawater bodies. All simulations were conducted in the horizontal view under transient conditions. The available historical records of the water table levels were used to calibrate and validate the developed model. Emphasis was placed on the response of the transition zone to different pumping scenarios in Wadi Ham. The results indicated that the seawater intrusion problem has evolved rapidly during the last two decades. Unlike previous investigations, this study presents the most accurate quantitative and qualitative assessment of available groundwater in the Wadi Ham aquifer under different pumping scenarios.
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Acknowledgments
The activities of this project were supported by the British Council, U.K. (Project Code: SH-04509) and UAE University. The Ministry of Environment and Water, UAE, provided all of the data related to Wadi Ham aquifer. The authors would like to acknowledge the thorough review and constructive comments of the reviewers.
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Information & Authors
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Published In
Journal of Hydrologic Engineering
Volume 19 • Issue 5 • May 2014
Pages: 855 - 866
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Nov 1, 2012
Accepted: Sep 5, 2013
Published online: Sep 7, 2013
Discussion open until: Feb 7, 2014
Published in print: May 1, 2014
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