Numerical simulation of seawater intrusion in the lower Seybouse aquifer system, Algeria

Seawater intrusion represents a high risk for the water supply, the agriculture and industry activities in the lower Seybouse region of North-Eastern Algeria. In order to analyze this risk, a three-dimensional model was developed using the MODFLOW and MT3DMS codes to predict seawater intrusion in th...

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Bibliographic Details
Published inAcque Sotterranee Vol. 12; no. 2; pp. 9 - 17
Main Authors Hani, Samir, Toumi, Fayçal, Bougherira, Nabil, Shahrour, Isam, Hani, Azzedine
Format Journal Article
LanguageEnglish
Published PAGEPress Publications 01.01.2023
Subjects
Coastal aquifer
MODFLOW-MT3DMS
overexploitation
seawater intrusion
vulnerability
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Summary:Seawater intrusion represents a high risk for the water supply, the agriculture and industry activities in the lower Seybouse region of North-Eastern Algeria. In order to analyze this risk, a three-dimensional model was developed using the MODFLOW and MT3DMS codes to predict seawater intrusion in the coastal aquifer. The application of this model indicates that the groundwater withdrawals result in a continuous decrease of the water level and in an increase of chloride concentration. Moreover, the salt front could progress by 300 to 2500 m in the land. These results show the necessity of adequate measures for the protection of the aquifer. Numerical predictions for 2045, considering an increase of groundwater withdrawals by 20%, show a fairly significant decrease in water levels, up to -6 m with respect to the mean sea level, and an increase of Cl- concentrations up to about 10 km inland.
ISSN:1828-454X
2280-6458
DOI:10.7343/as-2023-635