Browsing by Author "Yusuf, M.A."

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    Delineating Groundwater Potential Zones in Parts of North Central Nigeria, Using Geographical Information System (GIS) and Analytical Hierarchical Process (AHP) Techniques
    (Nigerian Association of Hydrogeologist., 2024) Yusuf, M.A.; Arowolo, M.O.; Alao, J.O.; Abiye, T.A.; Ibrahim, K.O.; Oyeleke, T.A.; Omotoso, O.A.; Iheme, K.O.; Bakare, U.T.
    This project delineates groundwater potential zones in Kaiama, North-Central Nigeria, using Geographical Information System (GIS) and Analytical Hierarchy Process (AHP) techniques. Eight critical thematic layers, including geomorphology, lineament density, geology, slope, land use land cover (LULC), drainage density, elevation, and aspect, were integrated using the AHP method. The process was integrated into the GIS environment to generate a comprehensive groundwater potential map. The groundwater potential map obtained was classified as very high, high, average, low, and very low groundwater potential zones. The result showed that 15 %, 6 %, 13 %, 21 %, and 44 % of the study area fall under a very high, high, average, low, and very low groundwater potential zone, respectively. Vertical Electrical Sounding (VES) data from 20 locations across the study area were used to validate the accuracy of the delineated groundwater potential zones. The validation process employed Receiver Operating Characteristic (ROC) analysis, comparing the VES data with the generated groundwater potential map. The Area Under the Curve (AUC) was calculated to assess the model's predictive accuracy yielding a moderate value of 0.60. The findings from this research showed that the integration of GIS, Remote sensing (RS), and, the multi-criteria decisionmaking approach (MCDA) based on (AHP) techniques provide a reasonable framework for groundwater potential delineation and exploration.