Abeer El-Kenawy

Zagazig University

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Mohamed Metwaly

King Saud University

Amr Abd El‐Raouf

Zagazig University

Abbas Ahmed Mohamed

National Research Institute of Astronomy and Geophysics

Mohamed Eleraki

Zagazig University

Usama Massoud

National Research Institute of Astronomy and Geophysics

Khaled S. Gemail

Zagazig University

M. Atya

National Research Institute of Astronomy and Geophysics

Thomas Wonik

Leibniz Institute for Applied Geophysics

Awni T. Batayneh

King Saud University

Lili Li

Guangxi University

Cooperative Institutions

National Research Institute of Astronomy and Geophysics

King Saud University

Zagazig University

Czech Academy of Sciences, Institute of Geophysics

Commonwealth Scientific and Industrial Research Organisation

Curtin University

Australian Resources Research Centre

University of Lisbon

Graduate School USA

University of Western Australia

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Shallow geophysical investigations at the Akhmim archaeological site, Suhag, Egypt

Applied Geophysics (2008)

Mahfooz Hafez Magdy Atya Azza M. Hassan Motoyuki Sato Thomas Wonik

Ground-Penetrating Radar

Statue

Geophysical survey

Electric resistivity

10.1007/s11770-008-0016-4

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Citations (7)

Tracing subsurface oil pollution leakage using 2D electrical resistivity tomography

Arabian Journal of Geosciences (2012)

Mohamed Metwaly Mohamed Ahmed Khalil El-Said Al-Sayed Abeer El-Kenawy

Electrical Resistivity Tomography

Formation water

10.1007/s12517-012-0600-z

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Citations (10)

2-D Fourier transform analysis of the gravitational field of Northern Sinai Peninsula

Journal of Applied Geophysics (2015)

Mohamed A. Khalil Fernando A. Monteiro Santos Mohammad Farzamian Abeer El-Kenawy

Peninsula

10.1016/j.jappgeo.2015.01.022

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Citations (7)

Table of Contents

Exploration Geophysics (2013)

Kun Guo James E. Mungall Richard J. Smith Eslam Elawadi Haider Zaman

Table (database)

10.1071/egv44n4toc

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Citations (0)

Contribution of geoelectrical resistivity sounding for paleoenvironment assessment at Saft El-Henna and Tell El-Dab’a archaeological sites, eastern Nile Delta, Egypt

Exploration Geophysics (2013)

Abeer El-Kenawy Mohamed Metwaly Khaled S. Gemail Amr Abd El‐Raouf

AbstractVertical electrical sounding (VES), a resistivity sounding technique, has been applied at two important archaeological sites in the eastern part of the Nile Delta to trace the paleoenvironment, particularly the defunct canals. Like many other archaeological sites in the Nile Delta of Egypt, these two sites have been subjected to urbanisation and agricultural invasion from the local farmers. Therefore, studying the paleoenvironment is an important task for guiding the excavation process and highlighting the importance of these two archaeological sites. The VES stations were arranged to cover the two sites, in the form of traverse profiles for tracing the subsurface sand and gravel facies that intercalated with clay deposits. The acquired VES data were processed based on the available borehole lithological information for the purpose of establishing the resistivity-depth models. Both 1D and 2D processing schemes were applied to the VES data sets to increase the confidence of the obtained results. The clay and silt deposits are characterised by low resistivity values, whereas the sand facies has a relatively high resistivity character. From the constructed cross-sections at the two sites, it was possible to define a consistent character for the clay deposits, which can be inferred as the defunct canals that supplied water to the two sites.Key words:: paleoenvironmentSaft El-HennaTell El Dab'aVES

Vertical electrical sounding

Nile delta

Silt

Electrical Resistivity Tomography

10.1071/eg13035

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Citations (5)

Use of Remote Sensing and Geophysical Techniques for Understanding the Wastewater Flow Paths in Desert Lands

NSG2021 27th European Meeting of Environmental and Engineering Geophysics (2022)

Mohamed Attwa Abeer El-Kenawy Usama Massoud Mohamed Ibrahim

Summary In arid urban environments, wastewater flow associated with oxidation ponds has a negative effect on the environment via geological disaster, slope stability and gully erosion. In our study, remote sensing (RS) and geoelectrical data are integrated to understand the wastewater flow paths around waste stabilization ponds built in desert lands. Firstly, the water-logging appearance is distinguished by monitoring land use/land cover changes using four temporal satellite images. Moreover, the wastewater flow paths and land drainage networks relationship is investigated. Secondly, direct current resistivity (DCR) soundings are acquired to characterize the subsurface layers distribution. The DCR soundings are inverted applying non-conventional inversion scheme to reduce the uncertainty of the DCR inversion problem. For subsurface lateral wastewater flow mapping, electrical resistivity tomography method is performed applying the triple-grid technique using unstructured triangular mesh for 2D-profiles inversion. The results demonstrate that the integration of RS and geoelectrical data represents a pertinent approach to understand the wastewater flow paths in desert lands. Although the general wastewater leakage has the same streams flow path, the major wastewater pathways are mainly controlled by subsurface fault zone and shale layer distributions. Hence, the present approach can assess and predict the wastewater flow-related crisis events before they develop.

Subsurface Flow

Electrical Resistivity Tomography

10.3997/2214-4609.202220073

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Citations (0)

Engineering seismological studies in and around Zagazig city, Sharkia, Egypt

NRIAG Journal of Astronomy and Geophysics (2012)

Mohamed Eleraki Abbas Ahmed Mohamed Abeer El-Kenawy Mostafa Toni I.M. Shimaa

The aim of this paper is to study the ground vibrations using Nakamura technique to evaluate the relation between the ground conditions and the earthquake characteristics. Microtremor measurements were carried out at 55 sites in and around Zagazig city. The signals were processed using horizontal to vertical spectral ratio (HVSR) technique to estimate the fundamental frequencies of the soil deposits and its corresponding H/V amplitude. Seismic measurements were acquired at nine sites for recording the surface waves. The recorded waveforms were processed using the multi-channel analysis of surface waves (MASW) method to infer the shear wave velocity profile. The obtained fundamental frequencies were found to be ranging from 0.7 to 1.7 Hz and the maximum H/V amplitude reached 6.4. These results together with the average shear wave velocity in the surface layers were used for the estimation of the thickness of the upper most soft cover layers (depth to bedrock). The sediment thickness generally increases at the northeastern and southwestern parts of the area which is in good agreement with the local geological structure. The results of this work showed the zones of higher potential damage in the event of an earthquake in the study area.

Microtremor

Bedrock

Wave velocity

Rayleigh Wave

10.1016/j.nrjag.2012.12.009

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Citations (8)

Geophysical site assessment of an active urban development site, southeastern suburb of Cairo, Egypt

Quarterly Journal of Engineering Geology and Hydrogeology (2020)

Noha Ismail Medhat M. Atya El-Said A. Ragab Abeer El-Kenawy Mohamed Abdel Zaher

There has been significant structural damage of newly built residential buildings in Quarter-27 District in the SE of Cairo, Egypt. A nearby active limestone quarry may also be affecting ground stability. This paper shows how a near-surface geophysical survey could characterize the site, unusually after the initial housing construction had already been undertaken. Geophysical surveys included seismic refraction (acquired between phases of quarry blasting), electrical resistivity and ground penetrating radar (GPR) 1D and 2D datasets. Geophysical results produced maps of a 3D ground model that also included water table depth, known major faults and a saturated layer that may have caused the building damage. Of the geophysical techniques trialled electrical resistivity tomography and GPR data were deemed optimal. This study shows that it is possible to undertake geophysical surveys to characterize a restricted urban site development.

Geophysical survey

10.1144/qjegh2018-151

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Citations (3)

Evaluating the structural model from ambient vibration recordings and shallow seismic refraction techniques. A case study of Zagazig City, Egypt

Arabian Journal of Geosciences (2016)

Abbas Ahmed Mohamed Mohamed Eleraki Abeer El-Kenawy Shaimaa Ismail Mostafa

Seismic refraction

Seismic Noise

Ambient noise level

Wavenumber

Group velocity