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Applications of Geospatial Technologies and Wetspass Model in Groundwater Recharge Estimation in Sana River Catchment, Kembata Tembaro Zone, Southern Ethiopia
Estimating groundwater recharge is critical for water resource appraisal and management. In the present study WetSpass model and GIS tools were used to determine water balance components’ temporal and spatial changes (surface runoff, actual evapotranspiration, and groundwater recharge) in the Sana watershed Kembata Tembaro Zone, Southern Ethiopia. In the current study, biophysical and hydro-meteorological parameters such as land use/cover, soil texture, elevation, and slope were included in the model. The data mentioned above sets were calibrated per the Wetspass model requirements. The spatial–temporal variation of the mean annual rainfall of 1358.6 mm was segmented into 20.6% (280 mm) of surface runoff (Qo), 59.76%(811.6 mm) of actual evapotranspiration, and 19.65% (267 mm) of water that annually recharges the groundwater system, according to the model results. The model's results show that the area's hydro-meteorological and biophysical variance controls the temporal and geographical variability of the catchment's water balance components. The current study provides policymakers and water resource experts with critical information on groundwater availability for sustainable development in the present study area.
Applications of Geospatial Technologies and Wetspass Model in Groundwater Recharge Estimation in Sana River Catchment, Kembata Tembaro Zone, Southern Ethiopia
Estimating groundwater recharge is critical for water resource appraisal and management. In the present study WetSpass model and GIS tools were used to determine water balance components’ temporal and spatial changes (surface runoff, actual evapotranspiration, and groundwater recharge) in the Sana watershed Kembata Tembaro Zone, Southern Ethiopia. In the current study, biophysical and hydro-meteorological parameters such as land use/cover, soil texture, elevation, and slope were included in the model. The data mentioned above sets were calibrated per the Wetspass model requirements. The spatial–temporal variation of the mean annual rainfall of 1358.6 mm was segmented into 20.6% (280 mm) of surface runoff (Qo), 59.76%(811.6 mm) of actual evapotranspiration, and 19.65% (267 mm) of water that annually recharges the groundwater system, according to the model results. The model's results show that the area's hydro-meteorological and biophysical variance controls the temporal and geographical variability of the catchment's water balance components. The current study provides policymakers and water resource experts with critical information on groundwater availability for sustainable development in the present study area.
Applications of Geospatial Technologies and Wetspass Model in Groundwater Recharge Estimation in Sana River Catchment, Kembata Tembaro Zone, Southern Ethiopia
Lecture Notes in Civil Engineering
Nandagiri, Lakshman (editor) / Narasimhan, M. C. (editor) / Marathe, Shriram (editor) / Danebo, Deginet (author) / Atilebachew, Abunu (author) / Abebe, Abel (author) / Jothimani, Muralitharan (author)
International Conference on Civil Engineering Trends and Challenges for Sustainability ; 2021
2022-06-27
18 pages
Article/Chapter (Book)
Electronic Resource
English
| Elsevier | 2022