Investigation of the Influence of Excess Pumping on Groundwater Salinity in the Gaza Coastal Aquifer (Palestine) Using Three Predicted Future Scenarios

The Gaza coastal aquifer (GCA) is the only source of water for about two million citizens living in Gaza Strip, Palestine. The groundwater quality in GCA has deteriorated rapidly due to many factors. The most crucial factor is the excess pumping due to the high population density. The objective of t...

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Bibliographic Details
Published in:Water (Basel) 2020-08, Vol.12 (8), p.2218
Main Authors: Seyam, Mohammed, S. Alagha, Jawad, Abunama, Taher, Mogheir, Yunes, Affam, Augustine Chioma, Heydari, Mohammad, Ramlawi, Khaled
Format: Article
Language:English
Subjects:
Agricultural production
Aquifers
Artificial intelligence
Coastal aquifers
Coasts
Drinking water
Environmental aspects
Fresh water
Groundwater
Groundwater quality
Leachates
Neural networks
Population density
Pumping
Pumping rates
Salinity
Salinity effects
Seawater
Water demand
Water management
Water quality
Water resources
Water, Underground
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Summary:The Gaza coastal aquifer (GCA) is the only source of water for about two million citizens living in Gaza Strip, Palestine. The groundwater quality in GCA has deteriorated rapidly due to many factors. The most crucial factor is the excess pumping due to the high population density. The objective of this article was to evaluate the influence of excess pumping on GCA’s salinity using 10-year predicted future scenarios based on artificial neural networks (ANNs). The ANN-based model was generated to predict the GCA’s salinity for three future scenarios that were designed based on different pumping rates. The results showed that when the pumping rate remains at the present conditions, salinity will increase rapidly in most GCA areas, and the availability of fresh water will decrease in disquieting rates by 2030. Only about 8% of the overall GCA’s area is expected to stay within 500 mg/L of the chloride concentration. Results also indicate that salinity would be improved slightly if the pumping rate is kept at 50% of the current pumping rates while the improvement rate is much faster if the pumping is stopped completely, which is an unfeasible scenario. The results are considered as an urgent call for developing an integrated water management strategy aiming at improving GCA quality by providing other drinking water resources to secure the increasing water demand.
ISSN:2073-4441
2073-4441
DOI:10.3390/w12082218