Subsurface Exploration for Construction of Lightning Protection System Using the Geophysical Methods, Alexandria, Egypt (A Case Study)
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Both electrical resitivity and total intensity magnetic measurements are combined together in an integrated manner to explore the subsurface layer and behavior of magnetic field in an area, where lightning protection system for a petrochemical factory is planned. Wenner configuration is used as a field layout for resistivity survey. The total intensity magnetic measurements are carried out using the proton magnetometer. The results revealed that, suitable base subsurface conductive layer is detected. A high gradient magnetic field is also detected at some places inside the study area.