Results 31 to 40 of about 13,838 (262)

Integrated geophysical and hydrochemical assessment of groundwater aquifers for agricultural development: a case study in the Area South Alamein-Wadi El Natrun Road, Egypt

All Earth
Groundwater exploration and quality assessment are vital for cultural and agricultural development. In this paper, we provide integrated geophysical techniques, including geoelectric and magnetotelluric methods, along with hydrochemical analysis, which ...
Sultan A. S. Araffa, Ayman Abdulattif, Mohamed Al Deep, Ashraf Khozym, Hamada Salama, Wael R. Gaweish, Shereen Ebrahim   +6 more
doaj   +1 more source

A correlation study of selected geomagnetic events recorded by the Egyptian observatories and INTERMAGNET stationsKey points

Earthquake Science
Geomagnetic observatory data are crucial for all branches of geophysics because they can contribute to earthquake research by detecting anomalies in the Earth’s magnetic field.
Aalaa Samy, Tarek Arafa-Hamed, Abdou Abdelkader, Ahmed Khashaba, Emad Takla   +4 more
doaj   +1 more source

Features and Source Current of Long‐Period Induced Geoelectric Field During Magnetic Storms: A Case Study

Space Weather, 2020
We present a case study on the long‐period ( >105 s) induced geoelectric field disturbance during magnetic storms. A set of continuous 33‐day measurements of the geoelectric field, geomagnetic field, geomagnetic indices, and interplanetary magnetic field
S. Y. Wu, S. Yao, X. D. Feng, W. B. Wei, Y. T. Yin, L. T. Zhang, H. Dong, G. W. Wang, J. L. Liu, Y. Q. Yu, D. Wei   +10 more
doaj   +1 more source

GEOELECTRIC STRUCTURE OF THE UIMON BASIN ACCORDING TO GROUND GEOELECTRIC

Interexpo GEO-Siberia, 2019
The article presents the results of studies of the geoelectric structure of the Uimon depression of the Gorny Altai using the complex of geoelectric methods, which includes electromography, vertical electrical sounding and transient electromagnetic sounding.
Aidisa Sanchaa, Nina Nevedrova, Ilya Shaparenko, Aleksandr Shalaginov, Sergey Babushkin   +4 more
openaire   +1 more source

Geoelectrical analysis for evaluating the groundwater characteristics of wadi El Madamud Area, Southeast Luxor, Egypt

Journal of Taibah University for Science, 2020
In this work, the totally 31 Vertical Electric Soundings (VESes) were carried out at wadi El Madamud, Southeastern Luxor city. These are processed and interpreted the forms of geologic models composed of five geoelectric layers of varying resistivities ...
Mohamed A. S. Youssef
doaj   +1 more source

Geophysical Investigation as an Aid to Understanding Complex Geological Terrain: A Case of Yikpata Transition Zone in Share, North-Central Nigeria

GeoScience Engineering, 2021
A geophysical method of investigation has been deployed in order to give a quick overview of the nature and the rapidly changing subsurface lithologies that characterized Yikpata, Share, Kwara State, Nigeria.
Onimisi Abdulmalik DANGA, Daniel Opemipo OBASAJU, Ochu David GOMINA, Olumayowa Temitope IJALEYE, Usman Jose ADOZE   +4 more
doaj   +1 more source

An investigation of the basement complex aquifer system in Lofa county, Liberia, for the purpose of siting boreholes [PDF]

, 2014
Liberia is recovering from a 14 year civil war and only 51% of the rural population has access to safe drinking water. Little hydrogeological knowledge survives in Liberia, increasing the difficulty in successfully siting new boreholes.
Elster, D., Holman, Ian P., Parker, Alison, Rudge, L.   +3 more
core   +1 more source

GEOELECTRICAL STRUCTURE OF BAIKAL RIFT MUYSKAYA BASIN BASED ON ARCHIVAL GEOELECTRICAL DATA INTERPRETATION

Interexpo GEO-Siberia, 2021
The article presents the results of reinterpretation of the archive data of the vertical electric soundings on the Muyskaya depression of the Baikal Rift. Two-dimensional mathematical modeling was performed to verify the obtained data.
Aidisa M. Sanchaa, Nina N. Nevedrova
openaire   +1 more source

Fast computation of the geoelectric field using the method of elementary current systems and planar Earth models [PDF]

, 2004
International audienceThe method of spherical elementary current systems provides an accurate modelling of the horizontal component of the geomagnetic variation field.
A. Pulkkinen, A. Viljanen, BEAR Working Group, O. Amm, R. Pirjola, T. Korja   +5 more
core   +3 more sources

Implications of heterogeneous embankment conditions for geoelectrical investigations on dams: A case study at Mactaquac Dam, Canada

Near Surface Geophysics, EarlyView.
Abstract Electrical resistivity tomography (ERT) has been shown to be effective for surveying and monitoring dams, due to the method's sensitivity to moisture content and relevant physical properties (e.g., porosity). Automated ERT systems, capable of time‐lapse monitoring, can be used to detect variations in ground conditions.
John S. Ball, Karl E. Butler, Jonathan E. Chambers, Paul B. Wilkinson, Andrew Binley   +4 more
wiley   +1 more source