Does the weighting of climate simulations result  in a better quantification of hydrological impacts?

Wang, Hui-Min; Chen, Jie; Xu, Chong-Yu; Chen, Hua; Guo, Shenglian; Xie, Ping; Li, Xiangquan

doi:https://doi.org/10.5194/hess-23-4033-2019

Articles | Volume 23, issue 10

https://doi.org/10.5194/hess-23-4033-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-23-4033-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 10

Research article

|

30 Sep 2019

Research article |

| 30 Sep 2019

Does the weighting of climate simulations result in a better quantification of hydrological impacts?

Hui-Min Wang, Jie Chen, Chong-Yu Xu, Hua Chen, Shenglian Guo, Ping Xie, and Xiangquan Li

Supplement

https://doi.org/10.5194/hess-23-4033-2019-supplement

Model code and software

Coupled Model Intercomparison Project 5, Earth System Grid Federation World Climate Research Programme's Working Group on Coupled Modelling https://pcmdi.llnl.gov/mips/cmip5/index.html

Short summary

When using large ensembles of global climate models in hydrological impact studies, there are pragmatic questions on whether it is necessary to weight climate models and how to weight them. We use eight methods to weight climate models straightforwardly, based on their performances in hydrological simulations, and investigate the influences of the assigned weights. This study concludes that using bias correction and equal weighting is likely viable and sufficient for hydrological impact studies.