Hydroclimatology of the Kaduna River Basin

This study examined the hydroclimatology of Kaduna River Basin (KRB) in northern Nigeria. In achieving this, monthly data on temperature (T) and rainfall (P) were sourced from ten hydrometeorological stations across basin 1990 to 2018. DrinC (Drought Indices Calculator) software was deployed calculate Potential Evapotranspiration (PET) adopting Thornthwaite approach. Water Balance (WB) model used further estimate other WB components i.e. soil moisture (SM), actual evapotranspiration (ETa), surplus (S) Runoff (R). are examine temporal spatial variability KRB for hydrological years (1990-2018). divided into two sub-basins (Lower Upper KRB). The analyses indicated peak R generally occurs during wet season (i.e. April through October) most especially at KRB. reveals that runoff efficiencies imply November March) while majority S is generated months, particularly October when ~95% average with August. results this provide a baseline understanding which can be as starting point analyses, water resources management.