Evaluation of groundwater resources in the Geba basin, Ethiopia
De Smedt, F.
Earth and related Environmental sciences
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Abstract This article presents an assessment of the groundwater resources in the Geba basin, Ethiopia. Hydrogeological characteristics are derived from a combination of GIS and field survey data. MODFLOW groundwater model in a PMWIN environment is used to simulate the movement and distribution of groundwater in the basin. Despite the limited data available, by simplifying the model as a single layered semi-confined groundwater system and by optimising the transmissivity of the different lithological units, a realistic description of the groundwater flow is obtained. It is concluded that 30,000 m3/day of groundwater can be abstracted from the Geba basin for irrigation in a sustainable way, in locations characterised by shallow groundwater in combination with aquitard-type lithological units
CitationDe Smedt, F.; Moeyersons, J.; Miruts Hagos,; Nyssen, J.; Deckers, J.; Kibrewossen Tesfagiorgis,; Tesfamichael Gebreyohannes, (2011). Evaluation of groundwater resources in the Geba basin, Ethiopia. , Bull Eng Geol Environ, Vol. 70, 461-466, DOI: 0.1007/s10064-010-0338-3.