This website uses cookies. By continuing to use this website you are agreeing to our use of cookies. 



UKCP18 Regional Projections on a 12km grid over the UK for 1980-2080

Update Frequency: As Needed
Latest Data Update: 2020-10-16
Status: Ongoing
Online Status: ONLINE
Publication State: Published
Publication Date: 2018-11-26
Download Stats: last 12 months
Dataset Size: 8.4K Files | 439GB


Regional climate model projections produced as part of the UK Climate Projection 2018 (UKCP18) project. The data produced by the Met Office Hadley Centre provides information on changes in climate for the UK until 2080, downscaled to a high resolution (12km), helping to inform adaptation to a changing climate.

The projections cover Europe and a 100 year period, 1981-2080, for a high emissions scenario, RCP8.5. Each projection provides an example of climate variability in a changing climate, which is consistent across climate variables at different times and spatial locations.

This dataset contains 12km data for the United Kingdom, the Isle of Man and the Channel Islands provided on the Ordnance Survey's British National Grid.

Citable as:  Met Office Hadley Centre (2018): UKCP18 Regional Projections on a 12km grid over the UK for 1980-2080. Centre for Environmental Data Analysis, date of citation.
Abbreviation: Not defined
Keywords: UK, Climate, Projections, UKCP18, Regional, Europe, Simulation, Model, Runs


Previous Info:
No news update for this record
Previously used record identifiers:
No related previous identifiers.
Access rules:
Access to these data is available to any registered CEDA user. Please Login or Register for an account to gain access.
Use of these data is covered by the following licence: When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Data provided by the UK Met Office

File Format:
Data are NetCDF formatted

Process overview

This dataset was generated by the computation detailed below.

UKCP18 Climate Realisations for UK on OSGB grid from Europe Regional Climate Model Realisations


The climate model projections are all variants of the limited-area atmosphere-only version of the Met Office Hadley Centre Global Environmental model (HadGEM3). They provide downscaled projections for the UK or Europe, driven by an ensemble of 60km Hadley Centre global coupled models HadGEM3-GC3.05.

This dataset consists of 12 projections from the 12km HadREM3-GA705 model. The model spans Europe and is driven by the 60km HadGEM3-GC3.05 global coupled model (GCM) perturbed-physics ensemble, with perturbations applied to the 12km RCM consistent with the driving GCM. All models are configurations of the Unified Model.

The regional climate model data has been interpolated using a conservative regridding scheme to the Ordnance Survey's British National grid.

There are discontinuities in the data on 1st Dec 2020 and 1st Dec 2060, due to the simulations being conducted as three separate time slices.

Input Description


Output Description


Software Reference


  • units: %
  • standard_name: cloud_area_fraction
  • var_id: clt
  • long_name: Cloud area fraction
  • units: m s-1
  • standard_name: eastward_wind
  • var_id: uas
  • long_name: Eastward wind component
  • standard_name: air_temperature
  • units: degC
  • var_id: tasmax
  • long_name: Maximum air temperature
  • standard_name: air_temperature
  • var_id: tas
  • units: degC
  • long_name: Mean air temperature
  • standard_name: air_temperature
  • units: degC
  • var_id: tasmin
  • long_name: Minimum air temperature
  • units: W m-2
  • standard_name: surface_net_downward_longwave_flux
  • var_id: rls
  • long_name: Net Surface long wave flux
  • units: W m-2
  • standard_name: surface_net_downward_shortwave_flux
  • var_id: rss
  • long_name: Net Surface short wave flux
  • units: m s-1
  • standard_name: northward_wind
  • var_id: vas
  • long_name: Northward wind component
  • var_id: pr
  • units: mm/day
  • standard_name: lwe_precipitation_rate
  • long_name: Precipitation rate
  • units: hPa
  • var_id: psl
  • standard_name: air_pressure_at_sea_level
  • long_name: Pressure at mean sea level
  • standard_name: relative_humidity
  • units: %
  • long_name: Relative humidity
  • var_id: hurs
  • standard_name: snowfall_flux
  • var_id: prsn
  • units: mm/day
  • long_name: Snowfall Flux
  • units: 1
  • standard_name: specific_humidity
  • var_id: huss
  • long_name: Specific humidity
  • standard_name: surface_snow_amount
  • var_id: snw
  • units: mm
  • long_name: Surface Snow Amount
  • units: m s-1
  • standard_name: wind_speed
  • var_id: sfcWind
  • long_name: Wind speed at 10m
  • units: 1
  • long_name: ensemble_member
  • var_id: ensemble_member
  • units: 1
  • long_name: ensemble_member_id
  • var_id: ensemble_member_id
  • units: degrees_north
  • standard_name: grid_latitude
  • var_id: grid_latitude
  • units: degrees_east
  • standard_name: grid_longitude
  • var_id: grid_longitude
  • units: 1
  • long_name: month_number
  • var_id: month_number
  • units: m
  • standard_name: projection_x_coordinate
  • var_id: projection_x_coordinate
  • var_id: projection_x_coordinate_bnds
  • units: m
  • standard_name: projection_y_coordinate
  • var_id: projection_y_coordinate
  • var_id: projection_y_coordinate_bnds
  • units: 1
  • long_name: season
  • var_id: season
  • var_id: time_bnds
  • var_id: transverse_mercator
  • units: 1
  • long_name: year
  • var_id: year
  • units: 1
  • long_name: yyyymm
  • var_id: yyyymm
  • units: 1
  • long_name: yyyymmdd
  • var_id: yyyymmdd

Co-ordinate Variables

  • units: degrees_north
  • standard_name: latitude
  • var_id: latitude
  • units: degrees_east
  • standard_name: longitude
  • var_id: longitude
  • standard_name: time
  • var_id: time
Temporal Range
Start time:
End time:
Geographic Extent

Related parties
Principal Investigators (1)