Assessing the fresh-saline groundwater distribution in the Nile delta aquifer using a 3D variable-density groundwater flow model

Marmar Mabrouk; Andreja Jonoski; Gualbert H.P.Oude Essink; Stefan Uhlenbrook

doi:10.3390/w11091946

Assessing the fresh-saline groundwater distribution in the Nile delta aquifer using a 3D variable-density groundwater flow model

Marmar Mabrouk^*, Andreja Jonoski, Gualbert H.P.Oude Essink, Stefan Uhlenbrook

^*Corresponding author for this work

Water Resources

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Abstract

The Nile Delta Aquifer (NDA) is threatened by salt water intrusion (SWI). This article demonstrates an approach for identifying critical salinity concentration zones using a three-dimensional (3D) variable-density groundwater flow model in the NDA. An innovative procedure is presented for the delineation of salinity concentration in 2010 by testing different simulation periods. The results confirm the presence of saline groundwater caused by SWI in the north of the NDA. In addition, certain regions in the east and southwest of the NDA show increased salinity concentration levels, possibly due to excessive groundwater extraction and dissolution of marine fractured limestone and shale that form the bedrock underlying the aquifer. The research shows that the NDA is still not in a state of dynamic equilibrium. The modeling instrument can be used for simulating future scenarios of SWI to provide a sustainable adaptation plan for groundwater resource.

Original language	English
Article number	1946
Number of pages	21
Journal	Water (Switzerland)
Volume	11
Issue number	9
DOIs	https://doi.org/10.3390/w11091946
Publication status	Published - 1 Sept 2019

Keywords

Groundwater
Nile Delta
Salt water intrusion
Salt/fresh groundwater relations
Variable-density groundwater modeling

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.3390/w11091946

water-11-01946Final published version, 8.92 MBLicence: CC BY

Cite this

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abstract = "The Nile Delta Aquifer (NDA) is threatened by salt water intrusion (SWI). This article demonstrates an approach for identifying critical salinity concentration zones using a three-dimensional (3D) variable-density groundwater flow model in the NDA. An innovative procedure is presented for the delineation of salinity concentration in 2010 by testing different simulation periods. The results confirm the presence of saline groundwater caused by SWI in the north of the NDA. In addition, certain regions in the east and southwest of the NDA show increased salinity concentration levels, possibly due to excessive groundwater extraction and dissolution of marine fractured limestone and shale that form the bedrock underlying the aquifer. The research shows that the NDA is still not in a state of dynamic equilibrium. The modeling instrument can be used for simulating future scenarios of SWI to provide a sustainable adaptation plan for groundwater resource.",

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AU - Uhlenbrook, Stefan

PY - 2019/9/1

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N2 - The Nile Delta Aquifer (NDA) is threatened by salt water intrusion (SWI). This article demonstrates an approach for identifying critical salinity concentration zones using a three-dimensional (3D) variable-density groundwater flow model in the NDA. An innovative procedure is presented for the delineation of salinity concentration in 2010 by testing different simulation periods. The results confirm the presence of saline groundwater caused by SWI in the north of the NDA. In addition, certain regions in the east and southwest of the NDA show increased salinity concentration levels, possibly due to excessive groundwater extraction and dissolution of marine fractured limestone and shale that form the bedrock underlying the aquifer. The research shows that the NDA is still not in a state of dynamic equilibrium. The modeling instrument can be used for simulating future scenarios of SWI to provide a sustainable adaptation plan for groundwater resource.

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KW - Salt water intrusion

KW - Salt/fresh groundwater relations

KW - Variable-density groundwater modeling

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Assessing the fresh-saline groundwater distribution in the Nile delta aquifer using a 3D variable-density groundwater flow model

Abstract

Keywords

UN SDGs

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