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The estimates are derived by applying the nearest neighbour interpolation method to a national database of hourly raingauge observations collated by Newcastle University and the Centre for Ecology & Hydrology (CEH). These interpolated hourly estimates were then used to temporally disaggregate the CEH-GEAR daily rainfall dataset. The estimated rainfall on a given hour refers to the rainfall amount accumulated in the previous hour. \n \nThe dataset also contains data indicating the distance between the grid point and the closest recording raingauge used in its interpolation. When this distance is greater than 50km, or there is zero rainfall recorded in the closest gauge, the daily value is disaggregated using a design storm. The dataset therefore also contains a flag indicating if the design storm was used. These data are provided as an indicator of the quality of the estimates.","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"}],"id":"d4ddc781-25f3-423a-bba0-747cc82dc6fa","incomingCitationCount":6,"incomingCitations":[{"description":"Lewis, E., Quinn, N., Blenkinsop, S., Fowler, H. J., Freer, J., Tanguy, M., … Woods, R. (2018). A rule based quality control method for hourly rainfall data and a 1 km resolution gridded hourly rainfall dataset for Great Britain: CEH-GEAR1hr. Journal of Hydrology, 564, 930–943","url":"https://doi.org/10.1016/j.jhydrol.2018.07.034","type":"academic"},{"description":"Kent, C., Dunstone, N., Tucker, S., Scaife, A.A., Brown, S., Kendon, E.J., Smith, D., McLean, L., & Greenwood, S. (2022). Estimating unprecedented extremes in UK summer daily rainfall. Environmental Research Letters, 17(1), 014041.\n","url":"https://doi.org/10.1088/1748-9326/ac42fb","type":"academic"},{"description":"Zheng, Y., Coxon, G., Woods, R., Li, J., & Feng, P. (2023). A Framework for Estimating the Probability Distribution of Event Runoff Coefficient in Ungauged Catchments. Water Resources Research, 59(1)","url":"https://doi.org/10.1029/2022wr033227","type":"academic"},{"description":"Chen, Y., Paschalis, A., Kendon, E., Kim, D. & Onof, C. (2021) Changing Spatial Structure of Summer Heavy Rainfall, Using Convection‐Permitting Ensemble. Geophysical Research Letters 48.","url":"https://doi.org/10.1029/2020gl090903","type":"academic"},{"description":"Zheng, Y., Coxon, G., Woods, R., Li, J. & Feng, P. (2023) Controls on the Spatial and Temporal Patterns of Rainfall‐Runoff Event Characteristics—A Large Sample of Catchments Across Great Britain. Water Resources Research 59.","url":"https://doi.org/10.1029/2022wr033226","type":"academic"},{"description":"Reder, A., Fedele, G., Manco, I., & Mercogliano, P. (2025). Estimating pros and cons of statistical downscaling based on EQM bias adjustment as a complementary method to dynamical downscaling. In Scientific Reports (Vol. 15, Issue 1). Springer Science and Business Media LLC.","url":"https://doi.org/10.1038/s41598-024-84527-5","type":"academic"}],"infoLinks":[{"url":"https://data-package.ceh.ac.uk/sd/d4ddc781-25f3-423a-bba0-747cc82dc6fa.zip","name":"Supporting information","description":"Supporting information available to assist in re-use of this dataset","function":"information","type":"OTHER"}],"inspireThemes":[{"theme":"Meteorological geographical features","uri":"http://inspire.ec.europa.eu/theme/mf"}],"keywordsOther":[{"value":"Gridded estimates of areal rainfall (GEAR)"},{"value":"CEH-GEAR"}],"keywordsTheme":[{"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 Open Government Licence","code":"license","uri":"https://eidc.ac.uk/licences/ogl/plain"}],"lineage":"The hourly rainfall estimates are derived from the temporal disaggregation of the CEH-GEAR daily data using hourly gauge data. This methodology ensures that the daily totals of the CEH_GEAR daily and 1hr datasets are consistent. The hourly gauge data is from the Met Office, the England Environment Agency (EA), Natural Resources Wales (NRW) and the Scottish Environmental Protection Agency (SEPA). The CEH-GEAR daily data is derived from the Met Office national database of observed precipitation. The nearest neighbour interpolation methodology was used to generate the gridded hourly estimates which were subsequently used to disaggregate the daily data. \n \nA quality control protocol was established in order to identify and reject erroneous hourly values in the gauge rainfall input dataset. The quality control procedure is a three step process:\n1) The gauge data is compared to the gridded CEH-GEAR daily dataset to identify suspect gauges\n2) A series of quality control tests are applied to identify suspect values at all gauges which are marked with a quality control flag\n3) Combinations of quality control flags for a given hourly accumulation are used to determine which flagged data are treated as erroneous values and thus excluded from the gauge records.","metadataDate":"2026-06-28T18:30:49","notGEMINI":false,"onlineResources":[{"url":"https://data-package.ceh.ac.uk/sd/d4ddc781-25f3-423a-bba0-747cc82dc6fa.zip","name":"Supporting information","description":"Supporting information available to assist in re-use of this dataset","function":"information","type":"OTHER"}],"pointsOfContact":[{"honorificPrefix":"Dr","familyName":"Lewis","givenName":"Elizabeth","organisationName":"Newcastle University","organisationIdentifier":"https://ror.org/01kj2bm70","role":"pointOfContact","email":"Elizabeth.lewis2@ncl.ac.uk","address":{"deliveryPoint":"School of Engineering, Cassie Building","city":"Newcastle upon Tyne","postalCode":"NE1 7RU","country":"UK"},"fullName":"Lewis, E.","pointOfContact":"Newcastle University"}],"publicationDate":"2019-04-18T00:00:00.000Z","publishers":[{"organisationName":"NERC Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"publisher","email":"info@eidc.ac.uk"}],"reasonChanged":"More years were added","resourceIdentifiers":[{"code":"https://catalogue.ceh.ac.uk/id/d4ddc781-25f3-423a-bba0-747cc82dc6fa"},{"code":"10.5285/d4ddc781-25f3-423a-bba0-747cc82dc6fa","codeSpace":"doi"}],"resourceType":{"value":"dataset"},"responsibleParties":[{"honorificPrefix":"Dr","familyName":"Lewis","givenName":"Elizabeth","organisationName":"Newcastle 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[CEH-GEAR1hr]","topicCategories":[{"value":"environment","uri":"http://inspire.ec.europa.eu/metadata-codelist/TopicCategory/environment"},{"value":"climatologyMeteorologyAtmosphere","uri":"http://inspire.ec.europa.eu/metadata-codelist/TopicCategory/climatologyMeteorologyAtmosphere"}],"topics":["http://onto.nerc.ac.uk/CEHMD/topic/4"],"type":"dataset","uri":"https://catalogue.ceh.ac.uk/id/d4ddc781-25f3-423a-bba0-747cc82dc6fa","useConstraints":[{"value":"© Natural Environment Research Council","code":"copyright"},{"value":"This resource is available under the terms of the Open Government Licence","code":"license","uri":"https://eidc.ac.uk/licences/ogl/plain"}]}