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However, groundwater development in the basin is sometimes hindered by relatively low success rate of boreholes. Thus, groundwater is increasingly being exploited to supplement the water needs of the populace.
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The inhabitants of the basin depend on rainfall and small surface reservoirs for their various water supply needs, which become very scarce and unsustainable in the dry seasons due to the arid to semi-arid conditions of the basin. This study has delineated groundwater potential zones of the Nabogo basin and categorized the northern and eastern parts, representing about 35% of the total basin, as the most suitable areas for groundwater prospecting. Nsiah, Emmanuel Appiah-Adjei, Emmanuel K. Hydrogeological delineation of groundwater potential zones in the Nabogo basin, Ghana
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In contrast, the least effective recharge potential area is in upstream regions due to the low infiltration of limestone. The resultant map of the groundwater potential zone demonstrates that the highest recharge potential area is located towards the downstream regions in the basin because of the high infiltration rates caused by gravelly sand and agricultural land use in these regions. The weights of factors contributing to the groundwater recharge are derived using aerial photos, geology maps, a land use database, and field verification. Remote sensing and the Geographical Information System (GIS) are used to integrate five contributing factors: lithology, land cover/land use, lineaments, drainage, and slope. The Chih-Pen Creek basin in eastern Taiwan is examined in this study to assess its groundwater resources potential. Assessing the potential zone of groundwater recharge is extremely important for the protection of water quality and the management of groundwater systems. However, over-exploitation has decreased groundwater availability and has led to land subsidence. At present, groundwater contributes 34% of the total annual water supply and is an important fresh water resource. Effectively utilizing the water resources is an imperative task due to climate change. Water resources in Taiwan are unevenly distributed in spatial and temporal domains. GIS for the Assessment of the Groundwater Recharge Potential Zone