Articles | Volume 24, issue 6
Hydrol. Earth Syst. Sci., 24, 2981–2997, 2020
https://doi.org/10.5194/hess-24-2981-2020
Hydrol. Earth Syst. Sci., 24, 2981–2997, 2020
https://doi.org/10.5194/hess-24-2981-2020

Research article 08 Jun 2020

Research article | 08 Jun 2020

Impact of downscaled rainfall biases on projected runoff changes

Stephen P. Charles et al.

Data sets

Regional Climate Model (RCM) simulations performed as part of the NSW and ACT Regional Climate Modelling (NARCliM) project NSW Climate Data Portal https://climatedata.environment.nsw.gov.au/

Short summary
This paper assesses the suitability of bias-corrected (BC) WRF daily rainfall across the state of Victoria, Australia, for input to hydrological models to determine plausible climate change impacts on runoff. It compares rainfall and runoff changes using BC WRF with those obtained from empirical scaling (ES) using raw WRF changes. It concludes that BC-derived changes are more plausible than ES-derived changes but that remaining biases in BC WRF daily data add uncertainty to runoff projections.