What does the data show? This data shows monthly averages of surface temperature (°C) for 2050-2079 from the UKCP18 regional climate projections. The data is for the high emissions scenario (RCP8.5). Limitations of the data We recommend the use of multiple grid cells or an average of grid cells around a point of interest to help users get a sense of the variability in the area. This will provide a more robust set of values for informing decisions based on the data. What are the naming conventions and how do I explore the data? This data contains a field for the average over the period. They are named 'tas' (temperature at surface), the month, and 'upper' 'median' or 'lower'. E.g. 'tas July Median' is the median value for July. To understand how to explore the data, see this page: https://storymaps.arcgis.com/stories/457e7a2bc73e40b089fac0e47c63a578 Please note, if viewing in ArcGIS Map Viewer, the map will default to ‘tas January Median’ values. What do the ‘median’, ‘upper’, and ‘lower’ values mean? Climate models are numerical representations of the climate system. To capture uncertainty in projections for the future, an ensemble, or group, of climate models are run. Each ensemble member has slightly different starting conditions or model set-ups. Considering all of the model outcomes gives users a range of plausible conditions which could occur in the future. For this dataset, the model projections consist of 12 separate ensemble members. To select which ensemble members to use, the monthly averages of temperature for 2050-2079 were calculated for each ensemble member and they were then ranked in order from lowest to highest for each location. The ‘lower’ fields are the second lowest ranked ensemble member. The ‘upper’ fields are the second highest ranked ensemble member. The ‘median’ field is the central value of the ensemble. This gives a median value, and a spread of the ensemble members indicating the range of possible outcomes in the projections. This spread of outputs can be used to infer the uncertainty in the projections. The larger the difference between the lower and upper fields, the greater the uncertainty. Data source tas_rcp85_land-rcm_uk_12km_12_mon-30y_200912-207911.nc (median) tas_rcp85_land-rcm_uk_12km_05_mon-30y_200912-207911.nc (lower) tas_rcp85_land-rcm_uk_12km_04_mon-30y_200912-207911.nc (upper) UKCP18 v20190731 (downloaded 04/11/2021) Useful links Further information on the UK Climate Projections (UKCP). Further information on understanding climate data within the Met Office Climate Data Portal
Overview12km2050-2079AverageClimateMet OfficeMonthlyProjectionsTemperatureUKUK emissions scenariosUK projections temperatureUKCP
Additional Information
KeyValue
dcat_issued2021-11-03T13:31:12.000Z
dcat_modified2024-01-29T12:05:37.024Z
dcat_publisher_nameMet Office
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harvest_source_titleMet Office Climate Data Portal