Water Balance Components Estimation using WetSpass Model: A Case study of Mekelle Area, Tigray, Ethiopia
Kahsay Hailekiros, Tesfamichael Gebreyohannes, Abdelwassie Hussein, Hagos Brhane
Physical Science International Journal · pp. 27–37 · Published 4 Aug 2023
10.9734/psij/2023/v27i3793Abstract
This research was aimed at estimating the spatially distributed Water balance components of the catchments in Mekelle area by using WetSpass hydrological model and verifying the model outputs with ground truth. Long term mean metrological data and physical characteristics of the catchments were used as an input to the model. The input data were manipulated using Arc- GIS tools. Results of this model depicted that about 73.13% and 19.96% of the precipitation in the study area was lost through evapotranspiration and surface runoff respectively. However, 7% of it replenished the groundwater. The annual runoff and groundwater recharge estimated in WetSpass model accumulated using Arc-GIS were verified using the annual runoff gauged records and base flow measurements. Accordingly the accumulated runoff and base flow derived from the WetSpass model using Arc-GIS software results were quite close to the observed runoff and base flow values measured in the gauging points. Therefore, WetSpass model is appropriate model in estimating water balance components in the study area.
Cited by 2
Ehab Mohammad Amen, María Luisa Calvache · Scientific Reports · 2025
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