Two sets of bias-corrected regional UK Climate Projections 2018 (UKCP18) of temperature, precipitation and potential evapotranspiration for Great Britain

Reyniers, Nele; Zha, Qianyu; Addor, Nans; Osborn, Timothy J.; Forstenhäusler, Nicole; He, Yi

doi:https://doi.org/10.5194/essd-17-2113-2025

Articles | Volume 17, issue 5

https://doi.org/10.5194/essd-17-2113-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/essd-17-2113-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 5

Data description paper

|

20 May 2025

Data description paper |

| 20 May 2025

Two sets of bias-corrected regional UK Climate Projections 2018 (UKCP18) of temperature, precipitation and potential evapotranspiration for Great Britain

Nele Reyniers, Qianyu Zha, Nans Addor, Timothy J. Osborn, Nicole Forstenhäusler, and Yi He

Data sets

UKCP18 RCM precipitation and temperature bias corrected using non-parametric quantile mapping method Qianyu Zha et al. https://doi.org/10.5281/zenodo.8223024

UKCP18 RCM precipitation and temperature bias corrected using ISIMIP3BA change-preserving quantile mapping Nele Reyniers et al. https://doi.org/10.5281/zenodo.6337381

Projected changes in droughts and extreme droughts in Great Britain are strongly influenced by the choice of drought index: UKCP18-based bias adjusted potential evapotranspiration Nele Reyniers et al. https://doi.org/10.5281/zenodo.6320707

Climate Hydrology and Ecology Research Support System Potential Evapotranspiration Dataset for Great Britain (1961--2017) [CHESS-PE] E. Robinson et al. https://doi.org/10.5285/9116e565-2c0a-455b-9c68-558fdd9179ad

HadUK-Grid Gridded Climate Observations on a 1km grid over the UK Met Office et al. https://doi.org/10.5285/D134335808894B2BB249E9F222E2ECA8

UKCP18 Regional Projections on a 12 km Grid over the UK for 1980--2080 Met Office Hadley Centre https://catalogue.ceda.ac.uk/uuid/589211abeb844070a95d061c8cc7f604

Model code and software

ISIMIP3BASD 2.4.1 S. Lange https://doi.org/10.5281/zenodo.3898426

Short summary

We present bias-corrected UK Climate Projections 2018 (UKCP18) regional datasets for temperature, precipitation, and potential evapotranspiration (1981–2080). All 12 members of the 12 km ensemble were corrected using quantile mapping and a change-preserving variant. Both methods effectively reduce biases in multiple statistics while maintaining projected climatic changes. We provide guidance on using the bias-corrected datasets for climate change impact assessment.