{"id":"ccfded8f-c8dc-4a24-8338-5af94dbfcc16","uri":"https://catalogue.ceh.ac.uk/id/ccfded8f-c8dc-4a24-8338-5af94dbfcc16","type":"dataset","title":"Historic reconstructions of monthly groundwater levels for 54 UK boreholes (1891-2015) ","description":"This dataset is a model output created using the BGS AquiMod model. It provides monthly groundwater level relative to the Ordnance Datum (maOD) from 1891 to 2015, reconstructed for 54 observation boreholes across the UK. Based on the Generalised Likelihood Uncertainty Estimation (GLUE) methodology, 90th percentile and 10th percentile confidence bounds have been estimated and are given for each of reconstructed groundwater level time series. ","metadataDate":"2026-03-26T13:36:22","resourceIdentifiers":[{"code":"https://catalogue.ceh.ac.uk/id/ccfded8f-c8dc-4a24-8338-5af94dbfcc16"},{"code":"10.5285/ccfded8f-c8dc-4a24-8338-5af94dbfcc16","codeSpace":"doi:"}],"relationships":[{"relation":"http://purl.org/dc/terms/isPartOf","target":"af1db516-3411-416f-9c51-5ab99d912f8a"}],"lineage":"Groundwater levels have been reconstructed using BGS AquiMod model. Monte Carlo (MC) simulations were undertaken to calibrate the models. These MC parameters were randomly sampled within a finite parameter range to produce one million parameter sets. The upper and lower bounds of the range for each of parameter were defined based on published data on aquifer properties or expert judgment. The quantification of uncertainty is based on the Generalised Likelihood Uncertainty Estimation (GLUE). Parameter sets are considered to be behavioural if their Nash Sutcliffe Efficiency score exceeds 0.5. The 10th and 90th percentiles of the reconstructed GWL values on each date are the values which are exceeded by 90 and 10 % of the reconstructions using the behavioural parameter vectors, respectively. \n\nSource data for the AquiMod models consisted of the following: groundwater level (GWL) data, precipitation, and temperature data.  The monthly groundwater level data are been taken from the National Groundwater Level Archive, NGLA (http://www.bgs.ac.uk/research/groundwater/datainfo/levels/ngla.html). Groundwater level records in the NGLA are irregular and typically at a frequency of a month or less. Consequently, raw groundwater level data was linearly interpolated to a monthly time step prior to use in AquiMod. Precipitation and temperature data were taken from an updated / extended version of UKCP09 produced by the Historic Droughts project.  Potential evapotranspiration is estimated from the temperature data (Tanguy et al., 2017 https://doi.org/10.5285/17b9c4f7-1c30-4b6f-b2fe-f7780159939c).","spatialRepresentationTypes":["textTable"],"topicCategories":[{"value":"environment","uri":"http://inspire.ec.europa.eu/metadata-codelist/TopicCategory/environment"},{"value":"geoscientificInformation","uri":"http://inspire.ec.europa.eu/metadata-codelist/TopicCategory/geoscientificInformation"},{"value":"inlandWaters","uri":"http://inspire.ec.europa.eu/metadata-codelist/TopicCategory/inlandWaters"}],"keywordsPlace":[{"value":"United Kingdom","uri":"http://sws.geonames.org/2635167"}],"keywordsProject":[{"value":"Historic Droughts"}],"keywordsOther":[{"value":"Droughts"},{"value":"Water scarcity"},{"value":"Drought inventory"},{"value":"Drought catalogue"},{"value":"Groundwater level"},{"value":"AquiMod"},{"value":"Uncertainty"},{"value":"Reconstructions"},{"value":"Borehole"}],"distributionFormats":[{"name":"Comma-separated values (CSV)","type":"text/csv","version":"unknown"}],"inspireThemes":[{"theme":"Geology","uri":"http://inspire.ec.europa.eu/theme/ge"},{"theme":"Hydrography","uri":"http://inspire.ec.europa.eu/theme/hy"}],"funding":[{"funderName":"Natural Environment Research Council","funderIdentifier":"https://ror.org/02b5d8509","awardTitle":"Analysis of historic drought and water scarcity in the UK: a systems-based study of drivers, impacts and their interactions","awardNumber":"NE/L010151/1","awardURI":"https://gtr.ukri.org/projects?ref=NE/L010151/1","orcid":false,"ror":true}],"boundingBoxes":[{"westBoundLongitude":-8.648,"eastBoundLongitude":1.768,"southBoundLatitude":49.864,"northBoundLatitude":60.861,"bounds":"{\"type\": \"Feature\",      \"properties\": {},      \"geometry\": {        \"type\": \"Polygon\",        \"coordinates\": [[[-8.648, 49.864], [-8.648, 60.861], [1.768, 60.861], [1.768, 49.864], [-8.648, 49.864]]]      }}","coordinates":"[[[-8.648, 49.864], [-8.648, 60.861], [1.768, 60.861], [1.768, 49.864], [-8.648, 49.864]]]"}],"distributorContacts":[{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"distributor","email":"info@eidc.ac.uk"}],"responsibleParties":[{"familyName":"Bloomfield","givenName":"John","organisationName":"British Geological Survey","organisationIdentifier":"https://ror.org/04a7gbp98","role":"pointOfContact","email":"enquiries@bgs.ac.uk","address":{"deliveryPoint":"Maclean Building, Benson Lane, Crowmarsh Gifford","city":"Wallingford","administrativeArea":"Oxfordshire","postalCode":"OX10 8BB","country":"United Kingdom"},"fullName":"Bloomfield, J.","pointOfContact":"British Geological Survey"},{"familyName":"Bloomfield","givenName":"J.P.","organisationName":"British Geological Survey","organisationIdentifier":"https://ror.org/04a7gbp98","role":"author","email":"enquiries@bgs.ac.uk","fullName":"Bloomfield, J.P."},{"familyName":"Marchant","givenName":"B.P.","organisationName":"British Geological Survey","organisationIdentifier":"https://ror.org/04a7gbp98","role":"author","email":"enquiries@bgs.ac.uk","fullName":"Marchant, B.P."},{"familyName":"Wang","givenName":"L.","organisationName":"British Geological Survey","organisationIdentifier":"https://ror.org/04a7gbp98","role":"author","email":"enquiries@bgs.ac.uk","fullName":"Wang, L."},{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"custodian","email":"info@eidc.ac.uk"},{"organisationName":"NERC Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"publisher","email":"info@eidc.ac.uk"}],"temporalExtents":[{"begin":"1891-01-01","end":"2015-12-31"}],"onlineResources":[{"url":"https://data-package.ceh.ac.uk/data/ccfded8f-c8dc-4a24-8338-5af94dbfcc16","name":"Download the data","description":"Download a copy of this data","function":"download","type":"OTHER"},{"url":"https://data-package.ceh.ac.uk/sd/ccfded8f-c8dc-4a24-8338-5af94dbfcc16.zip","name":"Supporting information","description":"Supporting information available to assist in re-use of this dataset","function":"information","type":"OTHER"}],"spatialReferenceSystems":[{"code":"http://www.opengis.net/def/crs/EPSG/0/27700","title":"OSGB 1936 / British National Grid"}],"incomingCitations":[{"description":"Orehova, T., Chapanov, Y., & Bournaski, E.(2023). Solar and Climate Impacts on Groundwater Level Variations in Two Wells in England. Environmental Protection and Disaster Risks, 284-292. ","url":"https://doi.org/10.1007/978-3-031-26754-3_25","type":"academic"},{"description":"Environment Agency (2023). Review of the research and scientific understanding of drought. The UK Government.","url":"https://www.gov.uk/government/publications/review-of-the-research-and-scientific-understanding-of-drought","type":"policy"}],"datasetReferenceDate":{"publicationDate":"2018-03-09","releasedDate":"2019-01-03"},"resourceMaintenance":[{"frequencyOfUpdate":"notPlanned"}],"useConstraints":[{"value":"This resource is made available under the terms of the Open Government Licence","code":"license","uri":"https://eidc.ac.uk/licences/ogl/plain"},{"value":"BGS © NERC 2019","code":"copyright"}],"resourceType":{"value":"dataset","uri":"http://inspire.ec.europa.eu/metadata-codelist/ResourceType/dataset"},"accessLimitation":{"value":"no limitations to public access","code":"Available","uri":"http://purl.org/coar/access_right/c_abf2"},"notGEMINI":false,"licences":[{"value":"This resource is made available under the terms of the Open Government Licence","code":"license","uri":"https://eidc.ac.uk/licences/ogl/plain"}],"incomingCitationCount":2,"publishers":[{"organisationName":"NERC Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"publisher","email":"info@eidc.ac.uk"}],"authors":[{"familyName":"Bloomfield","givenName":"J.P.","organisationName":"British Geological Survey","organisationIdentifier":"https://ror.org/04a7gbp98","role":"author","email":"enquiries@bgs.ac.uk","fullName":"Bloomfield, J.P."},{"familyName":"Marchant","givenName":"B.P.","organisationName":"British Geological Survey","organisationIdentifier":"https://ror.org/04a7gbp98","role":"author","email":"enquiries@bgs.ac.uk","fullName":"Marchant, B.P."},{"familyName":"Wang","givenName":"L.","organisationName":"British Geological Survey","organisationIdentifier":"https://ror.org/04a7gbp98","role":"author","email":"enquiries@bgs.ac.uk","fullName":"Wang, L."}],"publicationDate":"2018-03-09T00:00:00.000+00:00","infoLinks":[{"url":"https://data-package.ceh.ac.uk/sd/ccfded8f-c8dc-4a24-8338-5af94dbfcc16.zip","name":"Supporting information","description":"Supporting information available to assist in re-use of this dataset","function":"information","type":"OTHER"}],"availability":"Available","pointsOfContact":[{"familyName":"Bloomfield","givenName":"John","organisationName":"British Geological Survey","organisationIdentifier":"https://ror.org/04a7gbp98","role":"pointOfContact","email":"enquiries@bgs.ac.uk","address":{"deliveryPoint":"Maclean Building, Benson Lane, Crowmarsh Gifford","city":"Wallingford","administrativeArea":"Oxfordshire","postalCode":"OX10 8BB","country":"United Kingdom"},"fullName":"Bloomfield, J.","pointOfContact":"British Geological Survey"}],"custodians":[{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"custodian","email":"info@eidc.ac.uk"}],"citation":{"authors":["Bloomfield, J.P.","Marchant, B.P.","Wang, L."],"doi":"10.5285/ccfded8f-c8dc-4a24-8338-5af94dbfcc16","title":"Historic reconstructions of monthly groundwater levels for 54 UK boreholes (1891-2015) ","publisher":"NERC Environmental Information Data Centre","resourceTypeGeneral":"dataset","year":2018,"month":3,"day":9,"bibtex":"https://catalogue.ceh.ac.uk/documents/ccfded8f-c8dc-4a24-8338-5af94dbfcc16/citation?format=bib","ris":"https://catalogue.ceh.ac.uk/documents/ccfded8f-c8dc-4a24-8338-5af94dbfcc16/citation?format=ris","url":"https://doi.org/10.5285/ccfded8f-c8dc-4a24-8338-5af94dbfcc16"}}