Articles | Volume 22, issue 2
https://doi.org/10.5194/hess-22-1615-2018
https://doi.org/10.5194/hess-22-1615-2018
Research article
 | 
01 Mar 2018
Research article |  | 01 Mar 2018

A Bayesian modelling method for post-processing daily sub-seasonal to seasonal rainfall forecasts from global climate models and evaluation for 12 Australian catchments

Andrew Schepen, Tongtiegang Zhao, Quan J. Wang, and David E. Robertson

Related authors

Forecasting agricultural drought: the Australian Agricultural Drought Indicators
Andrew Schepen, Andrew Bolt, Dorine Bruget, John Carter, Donald Gaydon, Mihir Gupta, Zvi Hochman, Neal Hughes, Chris Sharman, Peter Tan, and Peter Taylor
Nat. Hazards Earth Syst. Sci., 25, 4053–4070, https://doi.org/10.5194/nhess-25-4053-2025,https://doi.org/10.5194/nhess-25-4053-2025, 2025
Short summary
Monitoring agricultural and economic drought: the Australian Agricultural Drought Indicators (AADI)
Neal Hughes, Donald Gaydon, Mihir Gupta, Andrew Schepen, Peter Tan, Geoffrey Brent, Andrew Turner, Sean Bellew, Wei Ying Soh, Christopher Sharman, Peter Taylor, John Carter, Dorine Bruget, Zvi Hochman, Ross Searle, Yong Song, Patrick Mitchell, Yacob Beletse, Dean Holzworth, Laura Guillory, Connor Brodie, Jonathon McComb, and Ramneek Singh
Nat. Hazards Earth Syst. Sci., 25, 3461–3482, https://doi.org/10.5194/nhess-25-3461-2025,https://doi.org/10.5194/nhess-25-3461-2025, 2025
Short summary

Cited articles

Beckers, J. V. L., Weerts, A. H., Tijdeman, E., and Welles, E.: ENSO-conditioned weather resampling method for seasonal ensemble streamflow prediction, Hydrol. Earth Syst. Sci., 20, 3277–3287, https://doi.org/10.5194/hess-20-3277-2016, 2016. 
Bennett, J. C., Wang, Q. J., Li, M., Robertson, D. E., and Schepen, A.: Reliable long-range ensemble streamflow forecasts: Combining calibrated climate forecasts with a conceptual runoff model and a staged error model, Water Resour. Res., 52, 8238–8259, 2016. 
Charles, A., Timbal, B., Fernandez, E., and Hendon, H.: Analog downscaling of seasonal rainfall forecasts in the Murray darling basin, Mon. Weather Rev., 141, 1099–1117, 2013. 
Clark, M., Gangopadhyay, S., Hay, L., Rajagopalan, B., and Wilby, R.: The Schaake shuffle: A method for reconstructing space-time variability in forecasted precipitation and temperature fields, J. Hydrometeorol., 5, 243–262, 2004. 
Crochemore, L., Ramos, M.-H., and Pappenberger, F.: Bias correcting precipitation forecasts to improve the skill of seasonal streamflow forecasts, Hydrol. Earth Syst. Sci., 20, 3601–3618, https://doi.org/10.5194/hess-20-3601-2016, 2016. 
Download
Short summary
Rainfall forecasts from dynamical global climate models (GCMs) require post-processing before use in hydrological models. Existing methods generally lack the sophistication to achieve calibrated forecasts of both daily amounts and seasonal accumulated totals. We develop a new statistical method to post-process Australian GCM rainfall forecasts for 12 perennial and ephemeral catchments. Our method produces reliable forecasts and outperforms the most commonly used statistical method.
Share