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Determining the Best Site Location for Underground Dams Using Fuzzy Analytic Hierarchy Process: A Case in the Sunyani West District

Emmanuel Adjei Damfeh*, Adebayo Felix Adakoya, Benjamin Asubam Wayor

Surface water resources in Ghana have recently been overexploited owing to the resurgence of small-scale mining and other human activities that deplete these resources. These activities need discussions regarding groundwater and its optimal use. This study investigates underground dams in Ghana, especially the use of a multi-criteria decision-making procedure to help choose appropriate areas. This study outlines a number of characteristics or criteria that are unclear, confusing, or unsure in real-world circumstances. Fuzzy Analytic Hierarchy Process (AHP) is used to capture any ambiguity any criterion under consideration provides and perform pairwise matrix comparisons to select the optimal position among a collection of candidate sites. This study focuses on seven agricultural settlements in the Sunyani West area and uses a modified Fuzzy AHP approach to evaluate the options. The technique provides the best option for underground dam placement. The findings are compared to the experts’ original assessment to ensure consistency. This is done by using a detailed Fuzzy AHP approach to calculate weights depending on expert opinion and other considerations. In summary, this study uses a competent strategy to choose the optimal site for an underground dam in Ghana’s Sunyani-West Municipality.