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

Water

卷:11

Fulvio Celico¹  Emma Petrella¹  Alessandra Feo¹  Rebeca Hernàndez-Diaz²  Andrea Zanini³ 

[1] Department of Chemistry, Life Sciences and Environmental Sustainability, Parma University, Parco Area delle Scienze, 157/A, 43124 Parma, Italy;

[2] Department of Earth Sciences, Pinar del Rio University “Hermanos Saiz Montes de Oca”, A4, Pinar del Rio 20100, Cuba;

[3] Department of Engineering and Architecture, Parma University, Parco Area delle Scienze, 181/A, 43124 Parma, Italy;

关键词: karst aquifer;    numerical simulation;    seawat;    saltwater wedge;    sensitivity analysis;   

DOI  :  10.3390/w11112311

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown