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Open AccessArticle

Analysis of the Saltwater Wedge in a Coastal Karst Aquifer with a Double Conduit Network, Numerical Simulations and Sensitivity Analysis

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Department of Chemistry, Life Sciences and Environmental Sustainability, Parma University, Parco Area delle Scienze, 157/A, 43124 Parma, Italy
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Department of Engineering and Architecture, Parma University, Parco Area delle Scienze, 181/A, 43124 Parma, Italy
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Department of Earth Sciences, Pinar del Rio University “Hermanos Saiz Montes de Oca”, A4, Pinar del Rio 20100, Cuba
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Author to whom correspondence should be addressed.
Water 2019, 11(11), 2311; https://doi.org/10.3390/w11112311
Received: 26 August 2019 / Revised: 28 October 2019 / Accepted: 30 October 2019 / Published: 5 November 2019
(This article belongs to the Special Issue Groundwater Modelling in Karst Areas)
We investigate the long-distance salinity in a dual permeability coastal karst aquifer with a double conduit network using a three-dimensional variable-density groundwater flow and multispecies transport SEAWAT model. Sensitivity analyses were used to evaluate the impact of the parameters and boundary conditions on the modeling saltwater wedge in a karstic aquifer situated in the Cuban land territory, including hydraulic conductivity, vertical anisotropy and salinity concentration; both in the conduits network and the fractured medium. These analyses indicated that hydraulic conductivity of the fractured medium and salt concentration were the ones that have a stronger effect on saltwater intrusion in a karstic aquifer. We also show results of the three-dimensional numerical simulations on groundwater salinity for different scenarios with the variabilities of the important parameters and compare results with electric conductivity profiles measured in a well. View Full-Text
Keywords: karst aquifer; numerical simulation; SEAWAT; saltwater wedge; sensitivity analysis karst aquifer; numerical simulation; SEAWAT; saltwater wedge; sensitivity analysis
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MDPI and ACS Style

Feo, A.; Zanini, A.; Petrella, E.; Hernàndez-Diaz, R.; Celico, F. Analysis of the Saltwater Wedge in a Coastal Karst Aquifer with a Double Conduit Network, Numerical Simulations and Sensitivity Analysis. Water 2019, 11, 2311.

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