Hydrogeophysical and structural investigation using VES and TDEM data: A case study at El-Nubariya–Wadi El-Natrun area, west Nile Delta, Egypt

Ibraheem, Ismael M.; El-Qady, Gad; ElGalladi, Ahmed

doi:10.1016/j.nrjag.2016.04.004

Cited by 18 publications

(8 citation statements)

References 6 publications

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“…T he results of this study support the results of 6 , 22 that the principal waterbearing formations in the study area are Pleistocene, Pliocene, and Miocene sediments. In Cases 3 and 4, the Pleistocene aquifer occupies the northern portion of Wadi El Natrun basin.…”

Section: Resultssupporting

confidence: 89%

“…The depressions constitute a main land feature that influences the landscape of the present area. Wadi El Natrun (− 23 m) and Wadi El Farigh (− 4 m) depressions exhibit various morphologic features due to the influence of the local geologic and topographic conditions 6 . The study area has low relief and gentle terrain, with elevations ranging from below sea level (− 30 m) to more than 190 m (Fig.…”

Section: Methodsmentioning

confidence: 99%

“…The aim of this research is to assess the potential of geoelectrical investigations to expose the diverse subsurface stratigraphic and hydrogeological settings of groundwater aquifers (s) in various case studies throughout the study region. 1D VES is the most often used approach in most groundwater research, as detailed in many publications 6 – 10 , where the resistivity method is particularly sensitive to subsurface structure exchange. Several research projects have been conducted in Wadi El Natrun and its environs, but groundwater conditions still require more investigation.…”

Section: Introductionmentioning

confidence: 99%

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Evidence of geoelectrical resistivity values on groundwater conditions in Wadi El Natrun and its vicinities, West Delta, Egypt (cases studies)

Zarif

Elshenawy

Barseem

et al. 2022

Sci Rep

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Recently, Wadi El Natrun and its surroundings have witnessed intensive investments in land reclamation, including the arbitrary drilling of hundreds of groundwater wells. Currently, serious hydrogeological and environmental problems have been addressed, such as groundwater quality degradation and water head drop. Electrical resistivity measurements were performed at six locations across the study area to assess its ability to reveal the heterogeneous subsurface stratigraphic and hydrogeological setting of groundwater aquifer(s). The geoelectrical results successfully reflect the current vulnerable hydrogeological setting of the study sites. The current study highlights the current practice in which farmers rely on isolated 1-dimensional vertical electrical sounding (1D VES), which is not the only exploration tool for such electrically conductive stratigraphic succession. One of the main findings is addressing the advantage of applying 2-dimensional electrical resistivity imaging (2D ERI), where it offers a more robust view of both vertical and lateral variation of the investigated subsurface section (Case 3). On the other hand, the Geographic Information System (GIS) could mirror the present groundwater potentiality status, where both GIS analysis and resistivity results coincide, and where the good potentiality zone is restricted to the west and southwest directions of the study area (area of interest (aoi)), where the resistivity values of water bearing are relatively high and lie on the main drainage (Cases 2, 5, and 6). On the contrary, poor potentiality zones are deemed because of their proximity to tiny attributers, and are characterized by low resistivity values (Cases 1, 3 & 4), Finally, the current research study demonstrates the significance of combining morphometrical analysis with geophysics techniques for such environmental problems, where groundwater is primarily controlled by geomorphological features and geological conditions, including lithology and geological structures.

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Section: Resultssupporting

confidence: 89%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evidence of geoelectrical resistivity values on groundwater conditions in Wadi El Natrun and its vicinities, West Delta, Egypt (cases studies)

Zarif

Elshenawy

Barseem

et al. 2022

Sci Rep

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“…There are many applications of TDEM. It has been applied in hydrogeological studies [4,5], mineral exploration [6], and many more fields, ranging in scale from a few meters to several kilometers. In geological structure investigation, the TDEM technique gave good results in mapping the near surface fault structure in Mygdonian Basin [7].…”

Section: Introductionmentioning

confidence: 99%

Flower Pollination and Elitism Algorithms for Inversion of TDEM Data

Widodo

Raflesia

Awaliyah

et al. 2022

J. Math. Fund. Sci.

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Hybridization of algorithms can enhance the overall search capabilities to get the optimal solution. The aim of this study was to invert Time Domain Electromagnetic (TDEM) data using the Flower Pollination Algorithm (FPA) as a new inversion scheme technique. FPA was originally inspired by the fertilization process of flowers, in which pollen transfer grains from male flowers to female flowers. The modeling of TDEM data was done by combining the FPA and elitism (eFPA) techniques. The applicability was tested on forward modeling data and observed data in MATLAB 2017a. In testing the algorithm, we used a model from homogeneous half space to a multi-layer model using different parameters (resistivity and thickness). In addition, in the inversion process, we used field data with various starting model approaches. Based on the results of the TDEM data modeling, FPA and eFPA can both be applied as algorithmic techniques for inversion modeling of TDEM data. The eFPA technique gave better results than FPA.

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“…In this research we use the geoelectric resistivity technique among other geophysical tools as it is the most relevant exploring tool for studying and depicting the subsurface aquifer in arid areas (Asfahani 2007;Yadav and Singh 2007;Chandra et al 2010). The geoelectrical resistivity techniques are depending on measuring the electrical resistivity of the subsurface substances, which give information about the different geological layers, structures and sometimes the conditions of the associated groundwater (Stewart 1982;Van Overmeeren 1989;Repsold 1990;El-Waheidi et al 1992;Nowroozi et al 1999;Meju 2005;Ibraheem et al 2016;Othman et al 2019, Ibraheem andEl-Qady 2017).…”

Section: Introductionmentioning

confidence: 99%

Hydrogeophysical study at an arid area: case study at Ayun Musa hot springs, Sinai, Egypt

El-Qady

Shanab

Omran

et al. 2020

NRIAG Journal of Astronomy and Geophysics

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A geoelectrical resistivity survey supported by hydrochemical analysis was managed in Ayun Musa area to detect the groundwater aquifer, differentiate the subsurface layers and estimate the groundwater quality of Ayun Musa springs. A suit of 29 vertical electrical soundings (VES) of AB/2 varying from 1 up to 1000 metres were measured in the study area to achieve the goals. Water samples were collected from ten localities in the study area. Interpretation of the VESes using 1D and 2D algorithms indicates the presence of five geoelectric units of different resistivities. The main water bearing formation related to the Lower Cretaceous represented by the fifth layer and located at depth range from 205 to 256 m below the surface. On the other hand, Interpretation of hydrochemical analysis reveals that the groundwater in Ayun Musa area is brackish in nature. The sequence of the abundance of the major ions is in the following order Na + > Mg +2 > Ca +2 and Cl − > SO 4 −2 > HCO 3 −. This suggests active dissolution and ion exchange processes and the high chloride and sodium concentrations indicate a major influence by seawater. Generally, the groundwater samples in the study area are not suitable for domestic purposes.

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Hydrogeophysical and structural investigation using VES and TDEM data: A case study at El-Nubariya–Wadi El-Natrun area, west Nile Delta, Egypt

Cited by 18 publications

References 6 publications

Evidence of geoelectrical resistivity values on groundwater conditions in Wadi El Natrun and its vicinities, West Delta, Egypt (cases studies)

Evidence of geoelectrical resistivity values on groundwater conditions in Wadi El Natrun and its vicinities, West Delta, Egypt (cases studies)

Flower Pollination and Elitism Algorithms for Inversion of TDEM Data

Hydrogeophysical study at an arid area: case study at Ayun Musa hot springs, Sinai, Egypt

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