Quasi‐Three‐Dimensional Optimization Model of Jakarta Basin

Finney, Brad A.; Samsuhadi,; Willis, Robert

doi:10.1061/(asce)0733-9496(1992)118:1(18)

Cited by 75 publications

(40 citation statements)

References 16 publications

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“…The optimal control model was solved using: (1) the influence coefficient method and quadratic programming; and (2) the reduced gradient methods in conjunction with a quasi-Newton algorithm MINOS (Murtagh and Saunders 1993). Finney et al (1992) presented a quasi three-dimensional (3D) optimal control model for groundwater management in the Jakarta coastal aquifer. The finite difference program SHARP (Essaid 1990) was used as the simulation model.…”

Section: Introductionmentioning

confidence: 99%

Optimal and sustainable extraction of groundwater in coastal aquifers

Qahman

Larabi

Ouazar

et al. 2005

Stoch Environ Res Ris Assess

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Four examples are investigated for the optimal and sustainable extraction of groundwater from a coastal aquifer under the threat of seawater intrusion. The objectives and constraints of these management scenarios include maximizing the total volume of water pumped, maximizing the profit of selling water, minimizing the operational and water treatment costs, minimizing the salt concentration of the pumped water, and controlling the drawdown limits. The physical model is based on the density-dependent advective-dispersive solute transport model. Genetic algorithm is used as the optimization tool. The models are tested on a hypothetical confined aquifer with four pumping wells located at various depths. These solutions establish the feasibility of simulating various management scenarios under complex three-dimensional flow and transport processes in coastal aquifers for the optimal and sustainable use of groundwater.

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Section: Introductionmentioning

confidence: 99%

Optimal and sustainable extraction of groundwater in coastal aquifers

Qahman

Larabi

Ouazar

et al. 2005

Stoch Environ Res Ris Assess

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“…These studies developed on the concept of single potential formulation of Strack (1976). Numerical simulations using the sharp-interface approach have been used by Willis and Finney (1988), Finney et al (1992), Emch and Yeh (1998), Rao et al (2003Rao et al ( , 2004a, and Mantoglou and Papantoniou (2008). Shi et al (2011) used a numerical sharp-interface model to determine saltwater and freshwater withdrawal rates at a pumping well.…”

Section: Simulation Optimization By External Linkingmentioning

confidence: 99%

Review: Simulation-optimization models for the management and monitoring of coastal aquifers

Janardhanan

Datta

2015

Hydrogeol J

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The literature on the application of simulationoptimization approaches for management and monitoring of coastal aquifers is reviewed. Both sharp-and dispersive-interface modeling approaches have been applied in conjunction with optimization algorithms in the past to develop management solutions for saltwater intrusion. Simulation-optimization models based on sharp-interface approximation are often based on the Ghyben-Herzberg relationship and provide an efficient framework for preliminary designs of saltwater-intrusion management schemes. Models based on dispersiveinterface numerical models have wider applicability but are challenged by the computational burden involved when applied in the simulation-optimization framework. The use of surrogate models to substitute the physically based model during optimization has been found to be successful in many cases. Scalability is still a challenge for the surrogate modeling approach as the computational advantage accrued is traded-off with the training time required for the surrogate models as the problem size increases. Few studies have attempted to solve stochastic coastal-aquifer management problems considering model prediction uncertainty. Approaches that have been reported in the wider groundwater management literature need to be extended and adapted to address the challenges posed by the stochastic coastal-aquifer management problem. Similarly, while abundant literature is available on simulation-optimization methods for the optimal design of groundwater monitoring networks, applications targeting coastal aquifer systems are rare. Methods to optimize compliance monitoring strategies for coastal aquifers need to be developed considering the importance of monitoring feedback information in improving the management strategies.

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“…The management of the water supply systems that use groundwater from aquifers prone to saline water contamination is a complex task. Such management models at varying degrees of success have been reported in the literature (Shamir et al 1984;Essaid 1990;Finney and Willis 1992;Emch 1995;Hallaji and Yazicigil 1996;Nashikava 1998;Benhachmi et al 2003).…”

Section: Introductionmentioning

confidence: 96%

Optimal Locations of Groundwater Extractions in Coastal Aquifers

Silva

Haie

2006

Water Resour Manage

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A regional water supply management model for coastal aquifers was developed. One of its outcomes is the definition of the optimized locations for groundwater withdrawal. Such a tool permits the analysis of alternative plans for groundwater extraction and the sustainable use of water resources in a coastal aquifer subject to saltwater intrusion. The principal components are the evolutionary optimization and the analytical/numerical simulation models. The optimization technique looks for the best well locations taking into consideration the economic results and the satisfaction of the societal water demand. However these two concerns are conditioned by trying to control the saltwater intrusion, i.e., preserving the environmental equilibrium. The simulation model uses the governing mathematical equations for groundwater movement to find the interface between freshwater and saltwater. Because of the non-linearity in the system and the possibility of a jumping interface, a security distance was defined. This is a controlling variable which can be set by the decision makers. The model was applied to a typical case with interesting results. For example, diagrams showing the relationship between the location of the wells and the security distance(s) are of importance to the managers. It was also crucial to have an understanding of the tradeoffs between groundwater withdrawals, positions of the wells from the coast line, and the security distance. The model was also applied to a real case in order to relate the extractions, distances and artificial recharge (not presented in this paper).

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Quasi‐Three‐Dimensional Optimization Model of Jakarta Basin

Cited by 75 publications

References 16 publications

Optimal and sustainable extraction of groundwater in coastal aquifers

Optimal and sustainable extraction of groundwater in coastal aquifers

Review: Simulation-optimization models for the management and monitoring of coastal aquifers

Optimal Locations of Groundwater Extractions in Coastal Aquifers

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