Evaluation of geoelectrical models efficiency for coastal seawater intrusion by applying uncertainty analysis

Amin Zeynolabedin, Reza Ghiassi, Reyhaneh Norooz, Saliha Najib, Ahmed Fadili

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Sammanfattning

Seawater intrusion (SWI) is one of the most important phenomena which occurs in shorelines and islands and affects groundwater storage in the region. This study aims to investigate how far seawater has intruded in a coastal area and what is its extent variation. The results can lead to different management plans. To achieve these goals, a geoelectrical method is applied in the coastal aquifer of Chaouia, Morocco. In order to choose the best inversion process, different settings are applied in two different software packages namely RES2DINV and BERT and the results are compared using the Taylor diagram. Also, to determine the minimum and maximum SWI extent in the region, a new approach of uncertainty analysis is applied in the inversion process by the Monte Carlo method. The general results indicate that the seawater has intruded about 2 km into the shore. The obtained results show that by considering uncertainty, there is a sensible difference between the maximum and minimum extent of SWI (maximum 9% variation in the area of SWI) which should be noted when doing water research management studies. The methodology procedure in this study can be applied to different coastal areas around the world.

Originalspråkengelska
Artikelnummer127086
TidskriftJournal of Hydrology
Volym603
DOI
StatusPublished - 2021 dec. 1

Bibliografisk information

Publisher Copyright:
© 2021 Elsevier B.V.

Ämnesklassifikation (UKÄ)

  • Oceanografi, hydrologi, vattenresurser
  • Geoteknik

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