Geoelectrical and hydrogeochemical studies for delineating seawater intrusion in the outlet of Wadi Ham, UAE

Sherif, Mohsen; Mahmoudi, Ahmed El; Garamoon, Hassan; Kacimov, A. R.; Akram, S. F.; Ebraheem, A. M.; Shetty, Ampar

doi:10.1007/s00254-005-0081-4

Cited by 107 publications

(67 citation statements)

References 11 publications

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“…The correlation was found in geo-electrical study on seawater intrusion (Ebraheem et al 1997;Wilson et al 2006;Sherif et al 2006;Pujari and Soni 2008). Interpretation of resistivity data is difficult, however, for salinity changes that are due to interaction between seawater intrusion and fresh groundwater and to background resistivity; the most challenging is attempting to link earth resistivity to groundwater type (fresh, brackish, or saline).…”

Section: Hydro-geochemical Parametersmentioning

confidence: 99%

“…This study's resistivity measurements thus were probably more influenced by pore-fluid than by mineral composition of soil, and so resistivity images of the water types were more apparent. Concentration of dissolved ions in pore fluids is important for control of groundwater's electricity-transmitting ability (Sherif et al 2006). Another factor contributing to low resistivity is hydraulic force, which is more dominant in seawater intrusion than in freshwater (whose limited recharge on Carey Island was caused by land-use transformation; Figs.…”

Section: Hydro-geochemical Parametersmentioning

confidence: 99%

“…11,12,13,14,15,16,17,18,19,20,21). Ebraheem et al (1997) and Sherif et al (2006) stated that empirical relationship between geochemistry and geophysical methods could be derived when ions dissolved in pore fluid rather than in host soil were more apparent in the electrical images. Findings of early research on use of the empirical relationship as showed by resistivityimage data could be used in this study.…”

Section: Hydro-geochemical Parametersmentioning

confidence: 99%

“…For empirical relationship between geochemistry and geophysical information, geochemistry data from nine monitoring wells and resistivity measurements from nine transverse geo-electric data were used. Procedures for obtaining these relationships are described by Cartwright and McComas (1968), Ebraheem et al (1990), and Sherif et al (2006). Specific conductance of groundwater samples was converted into water resistivity (ρ w = 1/σ w ).…”

Section: Hydro-geochemical Parametersmentioning

confidence: 99%

“…Awni (2006) used 2-D geo-electrical method to detect subsurface freshwater and saline water at the alluvial shoreline of the Dead Sea, Jordan. Sherif et al (2006) integrated geoelectrical method with hydro-geochemical method to delineate saltwater intrusion at Wadi Ham, UAE. In Lagos, Nigeria, Adepelumi et al (2009) used vertical-electrical-sounding survey to delineate Lekki Peninsula freshwater-aquifer saltwater intrusion.…”

Section: Introductionmentioning

confidence: 99%

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Time-lapse resistivity investigation of salinity changes at an ex-promontory land: a case study of Carey Island, Selangor, Malaysia

Baharuddin

Taib

Hashim

et al. 2010

Environ Monit Assess

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Time-lapse resistivity measurements and groundwater geochemistry were used to study salinity effect on groundwater aquifer at the ex-promontory-land of Carey Island in Malaysia. Resistivity was measured by ABEM Terrameter SAS4000 and ES10-64 electrode selector. Relationship between earth resistivity and total dissolved solids (TDS) was derived, and with resistivity images, used to identify water types: fresh (ρ e > 6.5 m), brackish (3 m < ρ e < 6.5 m), or saline (ρ e < 3 m). Long-term monitoring of the studied area's groundwater quality via measurements of its time-lapse resistivity showed salinity changes in the island's groundwater aquifers not conforming to seawater-freshwater hydraulic gradient. In some aquifers far from the coast, saline water was dominant, while in some others, freshwater 30 m thick showed groundwater potential. Land transformation is believed to have changed the island's hydrogeology, which receives saltwater pressure all the time, limiting freshwater recharge to the groundwater system. The time-lapse resistivity measurements showed active salinity changes at resistivity-image bottom moving up the image for two seasons' (wet and dry) conditions. The salinity changes are believed to have been caused by incremental tide passing through highly porous material in the active-salinity-change area. The study's results were used to plan a strategy for sustainable groundwater exploration of the island.

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Section: Hydro-geochemical Parametersmentioning

confidence: 99%

Section: Hydro-geochemical Parametersmentioning

confidence: 99%

Section: Hydro-geochemical Parametersmentioning

confidence: 99%

Section: Hydro-geochemical Parametersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Time-lapse resistivity investigation of salinity changes at an ex-promontory land: a case study of Carey Island, Selangor, Malaysia

Baharuddin

Taib

Hashim

et al. 2010

Environ Monit Assess

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Delineation of saltwater intrusion zones using the time domain electromagnetic method: the Nabeul–Hammamet coastal aquifer case study (NE Tunisia)

Trabelsi

Mammou

Tarhouni³

et al. 2012

Hydrological Processes

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The time domain electromagnetic method (TDEM) is applied to monitor, to delineate and to map the saltwater intrusion zones in the Mediterranean Plio‐Quaternary aquifer. Forty‐two TDEM soundings were carried out in the coastal plain of Nabeul–Hammamet region (NE Tunisia). TDEM resistivity data were correlated with the existing borehole logging data to assign them to a particular lithology and to provide information about the position of the freshwater–seawater transition zone. The geoelectric sections showing the vertical configuration of seawater intrusion, with the brackish‐salty‐saturated zones, have a resistivity ranging from ~0.1 to 5 Ω⋅m and are detected at a depth lower than 1.5 m. The salinized zones are located at Nabeul (Sidi Moussa, Sidi El Mahrsi, Al Gasba and Mrazgua) and at Hammamet (Touristic zone of Hammamet north and south, Baraket Essahel) and reached a distance of 4 km from the coastline, indicating a severe state for the aquifer in these zones. These TDEM results are confirmed by the increase of chloride concentration content in the analysed water samples of monitoring wells. Moreover, in the northeastern part, the presence of a saltwater front located far from the coast and along the NW–SE major surface fault can be explained by two hypothesis: (i) this fault seems to provide a conduit for seawater to move readily towards the water wells and (ii) the clay and gypsum infiltration of marine Messinian deposits through the fault plane leads to low resistivities. Finally, it comes out from this study that TDEM survey has successfully depicted salinized zones of this coastal aquifer. Copyright © 2012 John Wiley & Sons, Ltd.

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Use of Geoelectrical Resistivity to Delineate the Seawater Intrusion in the Northwestern Part of the Nile Delta, Egypt

Salem

Osman

2017

The Handbook of Environmental Chemistry

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Geoelectrical and hydrogeochemical studies for delineating seawater intrusion in the outlet of Wadi Ham, UAE

Cited by 107 publications

References 11 publications

Time-lapse resistivity investigation of salinity changes at an ex-promontory land: a case study of Carey Island, Selangor, Malaysia

Time-lapse resistivity investigation of salinity changes at an ex-promontory land: a case study of Carey Island, Selangor, Malaysia

Delineation of saltwater intrusion zones using the time domain electromagnetic method: the Nabeul–Hammamet coastal aquifer case study (NE Tunisia)

Use of Geoelectrical Resistivity to Delineate the Seawater Intrusion in the Northwestern Part of the Nile Delta, Egypt

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