Potential evapotranspiration derived from HadUK-Grid gridded climate observations 1969-2020 (Hydro-PE HadUK-Grid)

THIS DATASET HAS BEEN SUPERSEDED The latest version is Potential evapotranspiration derived from HadUK-Grid 1km gridded climate observations 1969-2022 (Hydro-PE HadUK-Grid)

This data has been superseded due to errors in the data. Intercepted precipitation was not always limited to the total amount of precipitation that fell, and so occasionally reported slightly higher PETI, mostly in the summer months. Also there was an occasional error in interpolation from monthly to daily data affecting both the PET and PETI calculations, mostly in the winter months (e.g. negative sunshine hours). The newer version corrects these errors.

If you need access to the archived version, please contact the EIDC

Cite this dataset

THIS DATASET HAS BEEN SUPERSEDED The latest version is Potential evapotranspiration derived from HadUK-Grid 1km gridded climate observations 1969-2022 (Hydro-PE HadUK-Grid)

If you need access to the archived version, please contact the EIDC

https://doi.org/10.5285/470d9bf9-8c82-487c-956e-f15f9d8aac64

Gridded potential evapotranspiration calculated from HadUK-Grid gridded observed meteorological data at 1 km resolution over the United Kingdom for the years 1969-2020. 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). 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 calendar month.

These data were generated as part of NERC grant NE/S017380/1 (Hydro-JULES: Next generation land surface and hydrological prediction.)

Publication date: 2022-05-17

1 citation

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More information

View numbers valid from 01 June 2023 (information prior to this was not collected)

Format

NetCDF

Spatial information

Study area

Spatial representation type

Raster

Spatial reference system

OSGB 1936 / British National Grid

Temporal information

Temporal extent

1969-01-01 to 2020-12-31

Provenance & quality

This dataset was derived from the HadUK-Grid gridded observed meteorological dataset v1.0.3.0 at 1 km resolution over the United Kingdom for the years 1969-2020 (https://catalogue.ceda.ac.uk/uuid/4dc8450d889a491ebb20e724debe2dfb). HadUK-Grid is a gridded dataset derived from observed meteorological station data. 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 HadUK-Grid meteorological variables used were: daily maximum and minimum air temperature at 1.5 m (°C), daily precipitation (mm d-1), monthly mean water vapour pressure (hPa), monthly mean sea level pressure (hPa), monthly total sunshine hours (hours) and monthly mean wind speed at 10 m (m s-1). Other variables used were the surface elevation (m) and Ångström coefficients a, b and c. A description of the methodology is available in the supporting documentation.

Licensing and constraints

THIS DATASET HAS BEEN SUPERSEDED The latest version is Potential evapotranspiration derived from HadUK-Grid 1km gridded climate observations 1969-2022 (Hydro-PE HadUK-Grid)

If you need access to the archived version, please contact the EIDC

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

Cite this dataset as:

Brown, M.J.; Robinson, E.L.; Kay, A.L.; Chapman, R.; Bell, V.A.; Blyth, E.M. (2022). Potential evapotranspiration derived from HadUK-Grid gridded climate observations 1969-2020 (Hydro-PE HadUK-Grid). NERC EDS Environmental Information Data Centre. https://doi.org/10.5285/470d9bf9-8c82-487c-956e-f15f9d8aac64

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