Enhanced Hydrological Modelling With The Wrf-Hydro Lake/Reservoir Module At Convection-Permitting Scale: A Case Study Of The Tana River Basin In East Africa
Copernicus Publications
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Abstract: This study presents a convection-permitting hydrological modeling system for the Tana River Basin, integrating WRF-Hydro with a lake/reservoir module. It addresses challenges of precipitation input and reservoir representation, incorporating five key reservoirs to improve discharge prediction accuracy. The simulation shows up to 76% improvement compared to baselines, with insights into sensitivity around spin-up time, infiltration, and lake parameterization. Seasonal variation and peak flow representation are enhanced, supporting more reliable water resource planning under climate variability for East Africa?s most vulnerable basin.
Author:
Ling Zhang, Lu Li, Zhongshi Zhang, Joël Arnault, Stefan Sobolowski, Anthony Musili Mwanthi, Pratik Kad, Mohammed Abdullahi Hassan, Tanja Portele, Harald Kunstmann
Theme/Sector:
East Africa, Floods and Droughts, Water and Water Resources, Technology and Innovation
Year
2024