Integrated Geophysical Investigation for Mapping Groundwater Potential Zones of the Mersa-Girana Sub Basin, North Wollo Zone, Ethiopia

This study was conducted in the Mersa-Girana sub basin in north wollo zone, Ethiopia. It aims to map the groundwater potential zones in the area. VES and magnetic geophysical methods were employed to achieve this objective. As part of the geophysical survey, 293 magnetic data were collected at 100 meter intervals along east-west profiles and 10 VES points were acquired along four east-west profiles with an interval of 500 meter between the VES points. In addition to the primary VES data, ten (10) VES data were collected from secondary sources. The VES data were acquired using a Schlumberger array and a maximum current electrode spacing of 1000m. The results reveal the main aquifer depth is between 43 and 351 meters in the area.