Hydrology and Earth System Sciences
Hydrology and Earth System Sciences
HESS
Articles | Volume 27, issue 2
Articles | Volume 27, issue 2
https://doi.org/10.5194/hess-27-331-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-27-331-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 27, issue 2
Research article
 | 
18 Jan 2023
Research article |  | 18 Jan 2023

Intercomparison of global reanalysis precipitation for flood risk modelling

Fergus McClean, Richard Dawson, and Chris Kilsby

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Latest update: 31 Oct 2025
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Short summary
Reanalysis datasets are increasingly used to drive flood models, especially for continental and global analysis. We investigate the impact of using four reanalysis products on simulations of past flood events. All reanalysis products underestimated the number of buildings inundated, compared to a benchmark national dataset. These findings show that while global reanalyses provide a useful resource for flood modelling where no other data are available, they may underestimate impact in some cases.
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