{"accessLimitation":{"value":"noLimitations","availability":"Available","description":"Access to the resource is not subject to any access limitations and is available to all users without restriction.","uri":"http://vocab.nerc.ac.uk/collection/N07/current/UNRS/"},"authors":[{"familyName":"Dalle Piagge","givenName":"M.J.","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"author","email":"enquiries@ceh.ac.uk","nameIdentifier":"https://orcid.org/0000-0003-1127-0279","fullName":"Dalle Piagge, M.J."},{"familyName":"Robinson","givenName":"E.L.","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"author","email":"enquiries@ceh.ac.uk","nameIdentifier":"https://orcid.org/0000-0002-3746-4517","fullName":"Robinson, E.L."},{"familyName":"Kay","givenName":"A.L.","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"author","email":"enquiries@ceh.ac.uk","nameIdentifier":"https://orcid.org/0000-0002-5526-1756","fullName":"Kay, A.L."},{"familyName":"Chapman","givenName":"R.","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"author","email":"rhian.chapman@gmail.com","nameIdentifier":"https://orcid.org/0000-0002-3842-1420","fullName":"Chapman, R."},{"familyName":"Bell","givenName":"V.A.","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"author","email":"enquiries@ceh.ac.uk","nameIdentifier":"https://orcid.org/0000-0002-0792-5650","fullName":"Bell, V.A."},{"familyName":"Blackford","givenName":"K.R.","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"author","email":"enquiries@ceh.ac.uk","nameIdentifier":"https://orcid.org/0000-0001-6632-6829","fullName":"Blackford, K.R."},{"familyName":"Blyth","givenName":"E.M.","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"author","email":"emb@fellows.ceh.ac.uk","nameIdentifier":"https://orcid.org/0000-0002-5052-238X","fullName":"Blyth, E.M."}],"availability":"Available","boundingBoxes":[{"westBoundLongitude":-8.648,"eastBoundLongitude":2.373,"southBoundLatitude":49.895,"northBoundLatitude":60.861,"bounds":"{\"type\": \"Feature\",      \"properties\": {},      \"geometry\": {        \"type\": \"Polygon\",        \"coordinates\": [[[-8.648, 49.895], [-8.648, 60.861], [2.373, 60.861], [2.373, 49.895], [-8.648, 49.895]]]      }}","coordinates":"[[[-8.648, 49.895], [-8.648, 60.861], [2.373, 60.861], [2.373, 49.895], [-8.648, 49.895]]]"}],"citation":{"authors":["Dalle Piagge, M.J.","Robinson, E.L.","Kay, A.L.","Chapman, R.","Bell, V.A.","Blackford, K.R.","Blyth, E.M."],"bibtex":"https://catalogue.ceh.ac.uk/documents/2aa2c8ab-9e32-4b3b-9636-503912305aca/citation?format=bib","day":2,"doi":"10.5285/2aa2c8ab-9e32-4b3b-9636-503912305aca","month":7,"publisher":"NERC EDS Environmental Information Data Centre","resourceTypeGeneral":"dataset","ris":"https://catalogue.ceh.ac.uk/documents/2aa2c8ab-9e32-4b3b-9636-503912305aca/citation?format=ris","title":"Potential evapotranspiration derived from HadUK-Grid 1km gridded climate observations 1969-2024 (Hydro-PE HadUK-Grid)","url":"https://doi.org/10.5285/2aa2c8ab-9e32-4b3b-9636-503912305aca","year":2026},"contactPoints":[{"familyName":"Robinson","givenName":"E.L.","displayName":"Emma Robinson","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"pointOfContact","email":"enquiries@ceh.ac.uk","nameIdentifier":"https://orcid.org/0000-0002-3746-4517","fullName":"Emma Robinson","pointOfContact":"UK Centre for Ecology & Hydrology"}],"custodians":[{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"custodian","email":"info@eidc.ac.uk"}],"datasetReferenceDate":{"publicationDate":"2026-07-02"},"description":"Gridded potential evapotranspiration calculated from HadUK-Grid gridded observed meteorological data at 1 km resolution over the United Kingdom for the years 1969-2024. 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.","distributionFormats":[{"name":"NetCDF","type":"application/netcdf","version":"4"}],"distributorContacts":[{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"distributor","email":"info@eidc.ac.uk"}],"funding":[{"funderName":"Natural Environment Research Council","funderIdentifier":"https://ror.org/02b5d8509","awardTitle":"Hydro-JULES","awardNumber":"NE/S017380/1","awardURI":"https://gtr.ukri.org/projects?ref=NE%2FS017380%2F1","orcid":false,"ror":true},{"funderName":"Natural Environment Research Council","funderIdentifier":"https://ror.org/02b5d8509","awardTitle":"Hydro-JULES-Next","awardNumber":"NE/X019063/1","awardURI":"https://gtr.ukri.org/projects?ref=NE%2FX019063%2F1","orcid":false,"ror":true}],"hasOnlineServiceAgreement":true,"id":"2aa2c8ab-9e32-4b3b-9636-503912305aca","incomingCitationCount":0,"infoLinks":[{"url":"https://data-package.ceh.ac.uk/sd/2aa2c8ab-9e32-4b3b-9636-503912305aca.zip","name":"Supporting information","description":"Supporting information available to assist in re-use of this dataset","function":"information","type":"OTHER"}],"inspireThemes":[{"theme":"Atmospheric Conditions","uri":"http://inspire.ec.europa.eu/theme/ac"}],"keywordsOther":[{"value":"evaporation","uri":"http://www.eionet.europa.eu/gemet/concept/3019"},{"value":"evapotranspiration","uri":"http://www.eionet.europa.eu/gemet/concept/3022"},{"value":"potential evaporation"},{"value":"potential evapotranspiration"},{"value":"modelling","uri":"http://www.eionet.europa.eu/gemet/concept/5327"}],"keywordsTheme":[{"value":"Hydrology","uri":"http://onto.nerc.ac.uk/CEHMD/topic/9"}],"licences":[{"value":"This resource is available under the terms of the Open Government Licence","code":"license","uri":"https://eidc.ac.uk/licences/ogl/plain"}],"lineage":"This dataset was derived from HadUK-Grid Gridded Climate Observations on a 1km grid over the UK: v1.0.3.0 for 1969-2020 inclusive, v1.1.0.0 for 2021, v1.2.0 for 2022, and v1.3.1.ceda for 2023-2024 inclusive. (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. \n\nThe 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.","metadataDate":"2026-07-24T19:31:00","notGEMINI":false,"onlineResources":[{"url":"https://data-package.ceh.ac.uk/sd/2aa2c8ab-9e32-4b3b-9636-503912305aca.zip","name":"Supporting information","description":"Supporting information available to assist in re-use of this dataset","function":"information","type":"OTHER"},{"url":"https://catalogue.ceh.ac.uk/datastore/eidchub/2aa2c8ab-9e32-4b3b-9636-503912305aca","name":"Download the data","description":"Download a copy of this data","function":"fileAccess","type":"OTHER"}],"publicationDate":"2026-07-02T00:00:00.000Z","publishers":[{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"publisher","email":"info@eidc.ac.uk"}],"relAll":[{"title":"Potential evapotranspiration derived from HadUK-Grid 1km gridded climate observations 1969-2023 (Hydro-PE HadUK-Grid)","publicationStatus":"published","href":"https://catalogue.ceh.ac.uk/id/9b35c867-d706-4fe0-aba9-d42a52c313f2","rel":"http://purl.org/dc/terms/replaces","associationType":"dataset"},{"title":"Potential evapotranspiration derived from HadUK-Grid 1km gridded climate observations 1969-2022 (Hydro-PE HadUK-Grid)","publicationStatus":"published","href":"https://catalogue.ceh.ac.uk/id/beb62085-ba81-480c-9ed0-2d31c27ff196","rel":"http://purl.org/dc/terms/replaces","associationType":"dataset"}],"relReplaces":[{"title":"Potential evapotranspiration derived from HadUK-Grid 1km gridded climate observations 1969-2023 (Hydro-PE HadUK-Grid)","publicationStatus":"published","href":"https://catalogue.ceh.ac.uk/id/9b35c867-d706-4fe0-aba9-d42a52c313f2","rel":"http://purl.org/dc/terms/isReplacedBy","associationType":"dataset"},{"title":"Potential evapotranspiration derived from HadUK-Grid 1km gridded climate observations 1969-2022 (Hydro-PE HadUK-Grid)","publicationStatus":"published","href":"https://catalogue.ceh.ac.uk/id/beb62085-ba81-480c-9ed0-2d31c27ff196","rel":"http://purl.org/dc/terms/isReplacedBy","associationType":"dataset"},{"title":"Potential evapotranspiration derived from HadUK-Grid 1km gridded climate observations 1969-2021 (Hydro-PE HadUK-Grid)","publicationStatus":"published","href":"https://catalogue.ceh.ac.uk/id/9275ab7e-6e93-42bc-8e72-59c98d409deb","rel":"http://purl.org/dc/terms/isReplacedBy","associationType":"dataset"},{"title":"Potential evapotranspiration derived from HadUK-Grid gridded climate observations 1969-2020 (Hydro-PE HadUK-Grid)","publicationStatus":"published","href":"https://catalogue.ceh.ac.uk/id/470d9bf9-8c82-487c-956e-f15f9d8aac64","rel":"http://purl.org/dc/terms/isReplacedBy","associationType":"dataset"}],"relationships":[{"relation":"http://purl.org/dc/terms/replaces","target":"beb62085-ba81-480c-9ed0-2d31c27ff196"},{"relation":"http://purl.org/dc/terms/replaces","target":"9b35c867-d706-4fe0-aba9-d42a52c313f2"}],"resourceIdentifiers":[{"code":"https://catalogue.ceh.ac.uk/id/2aa2c8ab-9e32-4b3b-9636-503912305aca"},{"code":"10.5285/2aa2c8ab-9e32-4b3b-9636-503912305aca","codeSpace":"doi"}],"resourceType":{"value":"dataset"},"rightsHolders":[{"organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"rightsHolder"}],"spatialReferenceSystems":[{"code":"http://www.opengis.net/def/crs/EPSG/0/27700","title":"OSGB 1936 / British National Grid"}],"spatialRepresentationTypes":["grid"],"spatialResolutions":[{"distance":"1000","uom":"urn:ogc:def:uom:EPSG::9001"}],"temporalExtents":[{"begin":"1969-01-01","end":"2024-12-31"}],"temporalResolution":["daily"],"title":"Potential evapotranspiration derived from HadUK-Grid 1km gridded climate observations 1969-2024 (Hydro-PE HadUK-Grid)","topicCategories":[{"value":"climatologyMeteorologyAtmosphere","uri":"http://inspire.ec.europa.eu/metadata-codelist/TopicCategory/climatologyMeteorologyAtmosphere"}],"topics":["http://onto.nerc.ac.uk/CEHMD/topic/9"],"type":"dataset","uri":"https://catalogue.ceh.ac.uk/id/2aa2c8ab-9e32-4b3b-9636-503912305aca","useConstraints":[{"value":"This resource is available under the terms of the Open Government Licence","code":"license","uri":"https://eidc.ac.uk/licences/ogl/plain"}]}