Articles | Volume 19, issue 2
https://doi.org/10.5194/hess-19-711-2015
https://doi.org/10.5194/hess-19-711-2015
Research article
 | 
04 Feb 2015
Research article |  | 04 Feb 2015

How does bias correction of regional climate model precipitation affect modelled runoff?

J. Teng, N. J. Potter, F. H. S. Chiew, L. Zhang, B. Wang, J. Vaze, and J. P. Evans

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Cited articles

Argüeso, D., Evans, J. P., and Fita, L.: Precipitation bias correction of very high resolution regional climate models, Hydrol. Earth Syst. Sci., 17, 4379–4388, https://doi.org/10.5194/hess-17-4379-2013, 2013.
Bennett, J. C., Ling, F. L. N., Post, D. A., Grose, M. R., Corney, S. P., Graham, B., Holz, G. K., Katzfey, J. J., and Bindoff, N. L.: High-resolution projections of surface water availability for Tasmania, Australia, Hydrol. Earth Syst. Sci., 16, 1287–1303, https://doi.org/10.5194/hess-16-1287-2012, 2012.
Bennett, J. C., Grose, M. R., Corney, S. P., White, C. J., Holz, G. K., Katzfey, J. J., Post, D. A., and Bindoff, N. L.: Performance of an empirical bias-correction of a high-resolution climate data set, Int. J. Climatol., 34, 2189–2204, https://doi.org/10.1002/joc.3830, 2014.
Berg, P., Feldmann, H., and Panitz, H. J.: Bias correction of high resolution regional climate model data, J. Hydrol., 448–449, 80–92, https://doi.org/10.1016/j.jhydrol.2012.04.026, 2012.
Boe, J., Terray, L., Habets, F., and Martin, E.: Statistical and dynamical downscaling of the Seine basin climate for hydro-meteorological studies, Int. J. Climatol., 27, 1643–1655, https://doi.org/10.1002/joc.1602, 2007.
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Short summary
This paper assesses four bias correction methods applied to RCM-simulated precipitation, and their follow-on impact on modelled runoff. The differences between the methods are small, mainly due to the substantial corrections required and inconsistent errors over time. The methods cannot overcome limitations of the RCM in simulating precipitation sequence, which affects runoff generation. Furthermore, bias correction can introduce additional uncertainty to change signals in modelled runoff.
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