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This dataset contains two potential evapotranspiration variables calculated using the Penman-Monteith equation parameterised for well-watered short grass: daily total potential evapotranspiration (PET; kg m-2) and daily total potential evapotranspiration with interception correction (PETI; kg m-2).\n\nThe data are provided in gridded netCDF files. There is one file for each variable for each month of the data set.\n\nThis research has been carried out under national capability funding as part of the NERC Hydro-JULES programme (NE/S017380/1) and under the NERC Changing Water Cycle program (NE/I006087/1)","distributionFormats":[{"name":"NetCDF","type":"application/netcdf","version":"unknown"}],"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 programme ","awardNumber":"NE/S017380/1","awardURI":"https://gtr.ukri.org/projects?ref=NE/S017380/1","orcid":false,"ror":true},{"funderName":"Natural Environment Research Council","funderIdentifier":"https://ror.org/02b5d8509","awardTitle":"Changing Water Cycle program ","awardNumber":"NE/I006087/1","awardURI":"https://gtr.ukri.org/projects?ref=NE/I006087/1","orcid":false,"ror":true}],"id":"8651771d-aa6d-4d0f-8bcd-b3be1f733852","incomingCitationCount":0,"infoLinks":[{"url":"https://data-package.ceh.ac.uk/sd/8651771d-aa6d-4d0f-8bcd-b3be1f733852.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":"potential evaporation"},{"value":"potential evapotranspiration "},{"value":"evaporation "},{"value":"climate change","uri":"http://www.eionet.europa.eu/gemet/concept/1471"},{"value":"climate","uri":"http://www.eionet.europa.eu/gemet/concept/1462"}],"keywordsTheme":[{"value":"Modelling","uri":"http://onto.nerc.ac.uk/CEHMD/topic/13"},{"value":"Climate and climate change","uri":"http://onto.nerc.ac.uk/CEHMD/topic/4"}],"licences":[{"value":"This resource is available under the terms of the UKCEH CHESS-PE licence","code":"license","uri":"https://eidc.ac.uk/licences/chesspe/plain"}],"lineage":"The potential evapotranspiration (PET) is derived from the air temperature, specific humidity, downward long- and shortwave radiation and surface air pressure from the Climate hydrology and ecology research support system Climate hydrology and ecology research support system meteorology dataset (CHESS-met) data set (https://doi.org/10.5285/835a50df-e74f-4bfb-b593-804fd61d5eab) using a version of the Penman-Monteith equation parameterised for Food and Agriculture Organisation (FAO)-defined well-watered grass. The potential evapotranspiration with interception correction (PETI) is derived from all of the above, plus the (CHESS-met) precipitation, which is the Gridded estimates of daily and monthly areal rainfall for the United Kingdom (CEH-GEAR) precipitation (https://doi.org/10.5285/dbf13dd5-90cd-457a-a986-f2f9dd97e93c) scaled to appropriate units. The PETI calculation adds a correction for interception by a well-watered grass on rain days.","metadataDate":"2026-06-29T18:17:51","notGEMINI":false,"onlineResources":[{"url":"https://catalogue.ceh.ac.uk/datastore/eidchub/8651771d-aa6d-4d0f-8bcd-b3be1f733852","name":"Download the data","description":"Download a copy of this data","function":"fileAccess","type":"OTHER"},{"url":"https://data-package.ceh.ac.uk/sd/8651771d-aa6d-4d0f-8bcd-b3be1f733852.zip","name":"Supporting information","description":"Supporting information available to assist in re-use of this dataset","function":"information","type":"OTHER"}],"pointsOfContact":[{"familyName":"Wiggins","givenName":"M.","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"pointOfContact","email":"enquiries@ceh.ac.uk","nameIdentifier":"https://orcid.org/0000-0002-7395-9381","fullName":"Wiggins, M.","pointOfContact":"UK Centre for Ecology & Hydrology"}],"publicationDate":"2023-10-31T00:00:00.000Z","publishers":[{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"publisher","email":"info@eidc.ac.uk"}],"reasonChanged":"This release extends the dataset to cover the years 2018-19. 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All rights reserved. Contains material based on Met Éireann data © Met Éireann, Met Office and OS data © Crown copyright and database right 2019 and University of East Anglia Climatic Research Unit © CRU","code":"otherRestrictions"},{"value":"This resource is available under the terms of the UKCEH CHESS-PE licence","code":"license","uri":"https://eidc.ac.uk/licences/chesspe/plain"}]}