Journal article

Sensitivity of discharge projections to potential evapotranspiration estimation in Northern Tunisia

Hamouda Dakhlaoui, Jan Seibert, Kirsti Hakala

Regional Environmental Change | Springer Science and Business Media LLC | Published : 2020

Abstract

Tunisia has a long history of coping with water scarcity, and the quantification of climate change impacts on runoff is important for future water management. A major requirement for such studies is an estimation of potential evapotranspiration (PET), which is challenging as many regions often lack the observational data needed for physically based PET equations. In this study, different PET estimation approaches were used to study the impact of PET estimation on discharge projections for catchments in Northern Tunisia. Discharge was simulated for five catchments using three rainfall-runoff models (RRMs): HBV, GR4 and IHACRES. A general differential split sample test (GDSST) was used for an ..

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