Groundwater exploration using drainage pattern and geophysical data: a case study from Wadi Qena, Egypt

Abstract In the Wadi Qena region, digital elevation model (DEM), aeromagnetic, and magnetotelluric data are processed examined to outline surface water flow patterns, subsurface structures, demonstrate their effects on groundwater direction, assess aquifer thickness relationship between structures inherited (drainage pattern). Qena’s drainage pattern watershed basins were delineated using satellite in order accomplish these objectives. The first vertical derivative transformation was used determine prevailing northwest-southeast northeast-southwest structural trends impacting region. handle aeromagnetic data, it is necessary reduce observed magnetic such that they correspond reduced pole (RTP). two-dimensional analytical signal technique discover depth of basement rocks, which research region serve as bedrock overlying aquifer, ranges from 101 ? 1165 m relative sea level. This information obtained by measuring distance earth’s bedrock. To further define accurate geological conducted survey area interpreted 1-D inversion technique, results coupled with existing drill data. base discovered be 350 410 deep. Finally, reliable closely related earlier geophysical investigations studied area.