Robinson, E.L.; Kay, A.L.; Brown, M.; Chapman, R.; Bell, V.A.; Blyth, E.M.

Potential evapotranspiration derived from the UK Climate Projections 2018 Regional Climate Model ensemble 1980-2080 (Hydro-PE UKCP18 RCM)

Gridded potential evapotranspiration calculated from United Kingdom Climate Projections 2018 (UKCP18) regional climate model (RCM) ensemble at 12 km resolution over the United Kingdom for the years 1980-2080 under the Representative Concentration Pathway 8.5 (RCP8.5) scenario. This dataset contains two potential evapotranspiration variables: daily total potential evapotranspiration (PET; kg m-2 d-1) and daily total potential evapotranspiration with interception correction (PETI; kg m-2 d-1). PET and PETI were calculated for each member of the UKCP18 RCM perturbed parameter ensemble. The units kg m-2 d-1 are equivalent to mm d-1. The data are provided in gridded netCDF files. There is one file for each variable, for each ensemble member, for each decade.

Publication date: 2021-08-11

Get the data

This dataset is available under the terms of the Open Government Licence

Format of the data: NetCDF

You must cite: Robinson, E.L.; Kay, A.L.; Brown, M.; Chapman, R.; Bell, V.A.; Blyth, E.M. (2021). Potential evapotranspiration derived from the UK Climate Projections 2018 Regional Climate Model ensemble 1980-2080 (Hydro-PE UKCP18 RCM). NERC EDS Environmental Information Data Centre. https://doi.org/10.5285/eb5d9dc4-13bb-44c7-9bf8-c5980fcf52a4

 

Where/When

Study area
Temporal extent
1980-12-01    to    2080-11-30

Provenance & quality

This dataset was derived from the United Kingdom Climate Projections 2018 (UKCP18) Regional Projections on a 12km grid over the UK for 1980-2080 (https://catalogue.ceda.ac.uk/uuid/589211abeb844070a95d061c8cc7f604, v20190731, v20190731), which is a twelve member perturbed parameter ensemble of climate model projections for representative concentration pathway (RCP) scenario RCP8.5. The daily total potential evapotranspiration (PET; kg m-2 d-1) was calculated using the Penman-Monteith equation parameterised for a well-watered grass surface. The daily total potential evapotranspiration with interception correction (PETI; kg m-2 d-1), was calculated as PET then a correction added for interception by a grass canopy on days with non-zero precipitation. The UKCP18 meteorological variables used were daily mean values of: specific humidity at 1.5 m (kg kg-1); sea level pressure (hPa); net surface long wave flux (W m-2); net surface short wave flux (W m-2); wind speed at 10 m (m s-1); air temperature at 1.5 m (degC); precipitation (mm d-1; used for PETI only). Other variables used were the surface elevation (m; https://data.ceda.ac.uk/badc/ukcp18/data/land-rcm/ancil/orog), atmospheric CO2 concentrations (ppmv), and land-sea mask that were used when running the climate model. A description of the methodology is available in the supporting documentation.

Correspondence/contact details

Emma Robinson
UK Centre for Ecology & Hydrology
Maclean Building, Benson Lane, Crowmarsh Gifford
Wallingford
Oxfordshire
OX10 8BB
UNITED KINGDOM
 enquiries@ceh.ac.uk

Authors

Robinson, E.L.
UK Centre for Ecology & Hydrology
Kay, A.L.
UK Centre for Ecology & Hydrology
Brown, M.
UK Centre for Ecology & Hydrology
Chapman, R.
UK Centre for Ecology & Hydrology
Bell, V.A.
UK Centre for Ecology & Hydrology
Blyth, E.M.
UK Centre for Ecology & Hydrology

Other contacts

Custodian
NERC EDS Environmental Information Data Centre
 info@eidc.ac.uk
Publisher
NERC EDS Environmental Information Data Centre
 info@eidc.ac.uk
Rights Holder
UK Centre for Ecology & Hydrology
 enquiries@ceh.ac.uk

Additional metadata

Topic categories
Climatology / Meteorology / Atmosphere , Geoscientific Information
Keywords
Climate and climate change Evaporation,  Evapotranspiration,  Hydrology Modelling Potential evaporation,  Potential evapotranspiration
INSPIRE Theme
Meteorological geographical features
Spatial representation type
Raster
Spatial reference system
OSGB 1936 / British National Grid
Last updated
13 August 2021 09:38