Analysis of the Saltwater Wedge in a Coastal Karst Aquifer with a Double Conduit Network, Numerical Simulations and Sensitivity Analysis
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 bounda...
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doaj-3f2747ccdb094494ad1fa79655e6221b2020-11-25T01:44:09ZengMDPI AGWater2073-44412019-11-011111231110.3390/w11112311w11112311Analysis of the Saltwater Wedge in a Coastal Karst Aquifer with a Double Conduit Network, Numerical Simulations and Sensitivity AnalysisAlessandra Feo0Andrea Zanini1Emma Petrella2Rebeca Hernàndez-Diaz3Fulvio Celico4Department of Chemistry, Life Sciences and Environmental Sustainability, Parma University, Parco Area delle Scienze, 157/A, 43124 Parma, ItalyDepartment of Engineering and Architecture, Parma University, Parco Area delle Scienze, 181/A, 43124 Parma, ItalyDepartment of Chemistry, Life Sciences and Environmental Sustainability, Parma University, Parco Area delle Scienze, 157/A, 43124 Parma, ItalyDepartment of Earth Sciences, Pinar del Rio University “Hermanos Saiz Montes de Oca”, A4, Pinar del Rio 20100, CubaDepartment of Chemistry, Life Sciences and Environmental Sustainability, Parma University, Parco Area delle Scienze, 157/A, 43124 Parma, ItalyWe 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.https://www.mdpi.com/2073-4441/11/11/2311karst aquifernumerical simulationseawatsaltwater wedgesensitivity analysis |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Alessandra Feo Andrea Zanini Emma Petrella Rebeca Hernàndez-Diaz Fulvio Celico |
spellingShingle |
Alessandra Feo Andrea Zanini Emma Petrella Rebeca Hernàndez-Diaz Fulvio Celico Analysis of the Saltwater Wedge in a Coastal Karst Aquifer with a Double Conduit Network, Numerical Simulations and Sensitivity Analysis Water karst aquifer numerical simulation seawat saltwater wedge sensitivity analysis |
author_facet |
Alessandra Feo Andrea Zanini Emma Petrella Rebeca Hernàndez-Diaz Fulvio Celico |
author_sort |
Alessandra Feo |
title |
Analysis of the Saltwater Wedge in a Coastal Karst Aquifer with a Double Conduit Network, Numerical Simulations and Sensitivity Analysis |
title_short |
Analysis of the Saltwater Wedge in a Coastal Karst Aquifer with a Double Conduit Network, Numerical Simulations and Sensitivity Analysis |
title_full |
Analysis of the Saltwater Wedge in a Coastal Karst Aquifer with a Double Conduit Network, Numerical Simulations and Sensitivity Analysis |
title_fullStr |
Analysis of the Saltwater Wedge in a Coastal Karst Aquifer with a Double Conduit Network, Numerical Simulations and Sensitivity Analysis |
title_full_unstemmed |
Analysis of the Saltwater Wedge in a Coastal Karst Aquifer with a Double Conduit Network, Numerical Simulations and Sensitivity Analysis |
title_sort |
analysis of the saltwater wedge in a coastal karst aquifer with a double conduit network, numerical simulations and sensitivity analysis |
publisher |
MDPI AG |
series |
Water |
issn |
2073-4441 |
publishDate |
2019-11-01 |
description |
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. |
topic |
karst aquifer numerical simulation seawat saltwater wedge sensitivity analysis |
url |
https://www.mdpi.com/2073-4441/11/11/2311 |
work_keys_str_mv |
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