Modeling Groundwater Flow and Seawater Intrusion in the Coastal Aquifer of Wadi Ham, UAE

Sherif, Mohsen; Kacimov, A. R.; Javadi, Akbar A.; Ebraheem, Abdel Azim

doi:10.1007/s11269-011-9943-6

Cited by 97 publications

(34 citation statements)

References 34 publications

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“…In coastal areas, up to one billion people utilize groundwater as the major source of drinking throughout the globe [7]. In such areas, seawater intrusion is the main environmental issue for contamination of groundwater [8][9][10]. The groundwater becomes unsuitable for domestic, irrigation as well as industrial purposes when mixed with salty water even in very small quantities [11].…”

Section: Introductionmentioning

confidence: 99%

Groundwater Quality Mapping using Geographic Information System: A Case Study of District Thatta, Sindh

Solangi¹,

Siyal²,

Babar³

et al. 2017

Mehran Univ. res. j. eng. technol.

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Access to safe and affordable drinking water for all is an important goal of SDGs (Sustainable Development Goals). Degradation of water quality of coastal aquifers is a major concern throughout the world including the Indus River delta. Looking at the present changing climate scenario, the study was conducted to assess and map the spatial variation in the groundwater quality of district Thatta using GIS (Geographic Information System). The groundwater samples from hundred (100) randomly selected hand pumps of the district were collected such that all union councils of the district were sampled. The water samples were analyzed for different physicochemical parameters, i.e. taste, color, odor, pH, turbidity, EC (Electrical Conductivity), calcium, magnesium, total hardness, chloride, total dissolved solids, and arsenic using standard laboratory techniques. The results of water analysis revealed that 85% of the groundwater samples had TDS (Total Dissolved Solids) concentration beyond the permissible limit described by WHO (World Health Organization). Whereas, all the groundwater samples had chloride concentration beyond permissible limit of 250 mg/l. Analysis for arsenic revealed that only 20% of groundwater samples had a concentration higher than the safe limit of 10 ppb. The study indicated that in most of the areas, the groundwater quality was not as per drinking standards prescribed by WHO, hence was not suitable for drinking purpose. The GIS maps of groundwater quality parameters were prepared using spatial interpolation Kriging tool. These maps provide the visual analysis and interpretation of spatial variability of different groundwater quality parameters, hence are supportive in monitoring and managing the vulnerability of groundwater contamination.

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Section: Introductionmentioning

confidence: 99%

Groundwater Quality Mapping using Geographic Information System: A Case Study of District Thatta, Sindh

Solangi¹,

Siyal²,

Babar³

et al. 2017

Mehran Univ. res. j. eng. technol.

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“…Groundwater models are commonly used to study coastal aquifers and to simulate and manage SWI (e.g. Ataie‐Ashtiani et al, , ; Ataie‐Ashtiani, ; Ataie‐Ashtiani and Ketabchi, ; Javadi et al, , Sherif et al ). Recently, a comprehensive review of the advances and future challenges of SWI processes, investigation, and management has been provided by Werner et al .…”

Section: Introductionmentioning

confidence: 99%

Inverse modelling for freshwater lens in small islands: Kish Island, Persian Gulf

Ataie-Ashtiani

Rajabi

Ketabchi

2012

Hydrological Processes

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A number of challenges including instability, nonconvergence, nonuniqueness, nonoptimality, and lack of a general guideline for inverse modelling have limited the application of automatic calibration by generic inversion codes in solving the saltwater intrusion problem in real‐world cases. A systematic parameter selection procedure for the selection of a small number of independent parameters is applied to a real case of saltwater intrusion in a small island aquifer system in the semiarid region of the Persian Gulf. The methodology aims at reducing parameter nonuniqueness and uncertainty and the time spent on inverse modelling computations. Subsequent to the automatic calibration of the numerical model, uncertainty is analysed by constrained nonlinear optimization of the inverse model. The results define the percentage of uncertainty in the parameter estimation that will maintain the model inside a user‐defined neighbourhood of the best possible calibrated model. Sensitivity maps of both pressure and concentration for the small island aquifer system are also developed. These sensitivity maps indicate higher sensitivity of pressure to model parameters compared with concentration. These sensitivity maps serve as a benchmark for correlation analysis and also assist in the selection of observations points of pressure and concentration in the calibration process. Copyright © 2012 John Wiley & Sons, Ltd.

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“…Seawater intrusion constitutes the main environmental problem facing coastal aquifers worldwide [6] [7]. It is shown that excessive groundwater exploitation in coastal area leads to seawater intrusion and influences the quality of the groundwater in aquifers [8] [9].…”

Section: Introductionmentioning

confidence: 99%

Groundwater Flow Modeling in the Wates Coastal Aquifer, Kulon Progo District, Yogyakarta Special Province, Indonesia

Wilopo

Putra

Wibowo

2018

GEOMATE

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Due to overcapacity, the current airport of Yogyakarta is going to be replaced with a new one, which is located in Wates coastal area, Kulon Progo District, Yogyakarta Special Province, Indonesia. One of the consequences of the development of the new airport is groundwater abstraction due to the airport's needs and related supporting activities. An excessive withdrawal of groundwater in the new airport will potentially change the system and the pattern of groundwater flow. Therefore, groundwater modeling should be done to predict the impact of groundwater abstraction in this area. MODFLOW code is used to simulate the groundwater flow and the impact of groundwater pumping in the Wates coastal aquifer. The model is calibrated using water level data from 40 wells in the research area. The results show that the calculated values are fit to the measured data, which indicates that the model is reliable. The effects of groundwater pumping on water table and seawater intrusion are investigated using a calibrated model. The results show that the pumping scenario from the airport area causes the groundwater level to drop 0.75 m and seawater intrusion inland to increase around 100 m.

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Modeling Groundwater Flow and Seawater Intrusion in the Coastal Aquifer of Wadi Ham, UAE

Cited by 97 publications

References 34 publications

Groundwater Quality Mapping using Geographic Information System: A Case Study of District Thatta, Sindh

Groundwater Quality Mapping using Geographic Information System: A Case Study of District Thatta, Sindh

Inverse modelling for freshwater lens in small islands: Kish Island, Persian Gulf

Groundwater Flow Modeling in the Wates Coastal Aquifer, Kulon Progo District, Yogyakarta Special Province, Indonesia

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