TIME DOMAIN ELECTROMAGNETIC AND GEOELECTRICAL MODELING FOR GROUNDWATER ASSESSMENT IN WEST EL NEGILA AREA, NORTHWESTERN COAST, EGYPT
El-Gendy, N., Youssef, A., Al-Tamamy, A., El-Sheshtawy, A., Radwan, S. (2022). TIME DOMAIN ELECTROMAGNETIC AND GEOELECTRICAL MODELING FOR GROUNDWATER ASSESSMENT IN WEST EL NEGILA AREA, NORTHWESTERN COAST, EGYPT. EKB Journal Management System, 20(1), 37-49. doi: 10.21608/jegs.2022.385851
N.H.T. El-Gendy; A.M.A. Youssef; A.M.M. Al-Tamamy; A.M. El-Sheshtawy; S.H. Radwan. "TIME DOMAIN ELECTROMAGNETIC AND GEOELECTRICAL MODELING FOR GROUNDWATER ASSESSMENT IN WEST EL NEGILA AREA, NORTHWESTERN COAST, EGYPT". EKB Journal Management System, 20, 1, 2022, 37-49. doi: 10.21608/jegs.2022.385851
El-Gendy, N., Youssef, A., Al-Tamamy, A., El-Sheshtawy, A., Radwan, S. (2022). 'TIME DOMAIN ELECTROMAGNETIC AND GEOELECTRICAL MODELING FOR GROUNDWATER ASSESSMENT IN WEST EL NEGILA AREA, NORTHWESTERN COAST, EGYPT', EKB Journal Management System, 20(1), pp. 37-49. doi: 10.21608/jegs.2022.385851
El-Gendy, N., Youssef, A., Al-Tamamy, A., El-Sheshtawy, A., Radwan, S. TIME DOMAIN ELECTROMAGNETIC AND GEOELECTRICAL MODELING FOR GROUNDWATER ASSESSMENT IN WEST EL NEGILA AREA, NORTHWESTERN COAST, EGYPT. EKB Journal Management System, 2022; 20(1): 37-49. doi: 10.21608/jegs.2022.385851

TIME DOMAIN ELECTROMAGNETIC AND GEOELECTRICAL MODELING FOR GROUNDWATER ASSESSMENT IN WEST EL NEGILA AREA, NORTHWESTERN COAST, EGYPT

Journal of Egyptian Geophysical Society
Volume 20, Issue 1, 2022, Pages 37-49    PDF (2.36 M)
Document Type: Original Article
DOI: 10.21608/jegs.2022.385851
Authors
N.H.T. El-Gendy1; A.M.A. Youssef2; A.M.M. Al-Tamamy2; A.M. El-Sheshtawy1; S.H. Radwan2
1(1) Geology Department, Faculty of Science, Tanta University
2(2) Desert Research Centre, P.O.B. 11753, Cairo, Egypt
Abstract
Evaluation and assessment of groundwater in arid regions such as the West El Negila area along the Northwestern Coast of Egypt is important for urbanization and sustainable development. Therefore, groundwater may become the most reasonable complementary resource that is capable to supply the area with needed water for drinking, agriculture and the development. A number of 4 vertical electric soundings (VES) and 50 time domain electromagnetic (TEM) soundings were carried out to investigate the subsurface hydrogeological units in the study area. The interpretation of VES and TEM revealed that the subsurface succession consists of four geoelectrical layers (A, B, C and D). The geoelectrical layer “C” which is equivalent to the Middle Miocene Marmarica limestone represents the water bearing formation in the study area; it attains moderate to low resistivity values (8.8 - 40 Ω.m) and thickness of 16- 40m and appears at depth 2 -116m underground surface. In general, the groundwater is expected to flow from south to north towards the Mediterranean Sea. The priority of sites to provide significant volumes of potable water was determined according to the relatively high resistivity and thickness of the water bearing layer. The more promising locations for drilling water wells exist in the southern parts of the area of study, where the potential for potable groundwater increases. It is expected that the salinity of water bearing layer increases due north.
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