Developing a three-dimensional hydrogeologic frameowrk in northern Ghana, West Africa
AuthorHolt, Shannon Elizabeth
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Groundwater development has increased in northern Ghana due to increasing population, accelerating socio-economic development, and unreliable/poor quality surface water sources. Drilling successful boreholes, however, has been difficult due to complex geology in the basin and limited data on aquifer characteristics. A modified approach to constructing a three-dimensional hydrogeologic framework of the basin is implemented using 900 boreholes from World Vision International's Ghana Integrated Water, Sanitation, and Hygiene Project, located in northern Ghana. The study's approach consists of: collecting borehole drilling logs; data QAQC; data standardization and normalization; analysis for trends and correlations; and creation of cross sections and an interpolated map of the regional hydrogeology. This study serves as the basis for a better understanding of the regional hydrogeology and a start for a future regional groundwater/surface water flow model.