Simulation of seawater intrusion resulting from proposed expanded pumpage in New York City, USA

Misut, Paul E.; Voss, Clifford I.

doi:10.1016/s0167-5648(04)80169-2

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…1 g/L Cl is similar to 1.84 g/L TDS. The chloride concentration in pure saltwater is approximately 19 g/L Cl (35 g/L TDS) (Suozzi 2005;Misut and Voss 2004).…”

Section: Saltwater Intrusionmentioning

confidence: 99%

A risk-based groundwater modeling framework in coastal aquifers: a case study on Long Island, New York, USA

2020

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A methodology is proposed to define indices for quantifying risks under the threat of reducing in groundwater levels, the existence of saltwater intrusion (SWI), and an increasing nitrate contamination load in submarine groundwater discharge (SGD). The proposed methodology considers coastal regions under geological heterogeneity and it is tested on a groundwater system in Nassau County of Long Island, New York (USA). The numerical model is constructed with the SEAWAT code. The parameter uncertainty of this model is evaluated by coupling the Latin hypercube sampling method (as a sampling algorithm) and Monte Carlo simulation to consider the uncertainty in both hydraulic conductivity and recharge rate. The indices are presented in spatial maps that classify areas of risk to potential threats. The results show that two of the water districts have a high risk under conditions of decreasing groundwater level. Salinity occurs in the southern and southwestern parts of the Nassau County aquifer and a considerable area of high risk of SWI is identified. Furthermore, the average SGD rate with the associated fluxes of nitrate is estimated as 81.4 million m3/year (average 0.8 tons of nitrate through SGD per year), which can adversely affect the quality of life in the local coastal ecosystems. The framework developed in this study could help the water district managers to identify high-risk areas for short-term and long-term planning and is applicable to other coastal settings.

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“…1 g/L Cl is similar to 1.84 g/L TDS. The chloride concentration in pure saltwater is approximately 19 g/L Cl (35 g/L TDS) (Suozzi 2005;Misut and Voss 2004).…”

Section: Saltwater Intrusionmentioning

confidence: 99%

A risk-based groundwater modeling framework in coastal aquifers: a case study on Long Island, New York, USA

2020

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“…The processes of groundwater contamination by pollutant-laden water or by marine intrusion are essentially due to convection induced by the difference in density between fresh water and polluted water or seawater. The physical and numerical study of this phenomenon must therefore be carried out by considering the vertical extension of the domain in 2D or even 3D 4 . However, in the context of a large-scale regional study, it may be useful to, first, carry out a horizontal study in 2D to delineate, in a first iteration, the extension of the contamination of the aquifer and thus target the affected areas.…”

Section: Introductionmentioning

confidence: 99%

A data completion method for identifying pollution intrusion in aquifers

Guellouz

Khayat

2022

Sci Rep

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The data completion method combined with the modeling of water flow and solute transport in saturated porous media is used twice to identify the extent of polluted water intrusion from the downstream boundary of an aquifer. The aim of this work is to solve the problem even though data are missing on some of the boundaries, by exploiting the fact that there are over specified data on the other boundaries. Indeed, it is assumed that the flow and the water head are known on the upstream boundary while the pollutant concentrations are known on the downstream boundary. The method developed in this work allows to determine the flows, water heads and pollutant concentrations in the whole domain. The method is applied in different aquifer configurations with pumping wells, the results are satisfactory. The model developed has shown its effectiveness in detecting the intrusion of polluted water and can be used in real cases.

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Simulation of seawater intrusion resulting from proposed expanded pumpage in New York City, USA

Cited by 2 publications

References 6 publications

A risk-based groundwater modeling framework in coastal aquifers: a case study on Long Island, New York, USA

A risk-based groundwater modeling framework in coastal aquifers: a case study on Long Island, New York, USA

A data completion method for identifying pollution intrusion in aquifers

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