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Users can load their own datasets of observed phosphorus and discharge and perform four types of model fitting: automated fitting on full dataset, fitting with one user-specified coefficient on full dataset, automated and user-specified fitting on data subset.\n\nSoftware requirements: R or R studio with shiny and ggplot2 packages; web browser.","distributionFormats":[{"name":"R script","version":"unknown"},{"name":"Comma-separated values (CSV)","type":"text/csv","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":"UK-SCaPE","awardNumber":"NE/R016429/1","awardURI":"https://gtr.ukri.org/projects?ref=NE/R016429/1","orcid":false,"ror":true}],"id":"900bf809-5dfd-4232-a654-df58d43b1a3f","incomingCitationCount":0,"infoLinks":[{"url":"https://data-package.ceh.ac.uk/sd/900bf809-5dfd-4232-a654-df58d43b1a3f.zip","name":"Supporting information","description":"Supporting information available to assist in re-use of this dataset","function":"information","type":"OTHER"}],"keywordsOther":[{"value":"eutrophication","uri":"http://www.eionet.europa.eu/gemet/concept/3007"},{"value":"source apportionment"},{"value":"point source","uri":"http://www.eionet.europa.eu/gemet/concept/6357"},{"value":"diffuse source","uri":"http://www.eionet.europa.eu/gemet/concept/2185"},{"value":"agriculture","uri":"http://www.eionet.europa.eu/gemet/concept/232"},{"value":"sewage","uri":"http://www.eionet.europa.eu/gemet/concept/7628"},{"value":"nutrient","uri":"http://www.eionet.europa.eu/gemet/concept/5763"},{"value":"load apportionment model"},{"value":"water quality","uri":"http://www.eionet.europa.eu/gemet/concept/9214"},{"value":"phosphorus","uri":"http://www.eionet.europa.eu/gemet/concept/6196"},{"value":"hydrology","uri":"http://www.eionet.europa.eu/gemet/concept/4118"}],"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":"Model formulation is based on Bowes et al. (2008). The model is adapted from the Excel-based LAM and translated to R code. It was developed under R version 4.4.0.\nTesting was done by comparing model fitting and predictions for over 20 sites with prior Excel-based LAM available. Software was further checked using data from over 60 sites.","metadataDate":"2026-06-27T19:23:05","notGEMINI":true,"onlineResources":[{"url":"https://data-package.ceh.ac.uk/data/900bf809-5dfd-4232-a654-df58d43b1a3f","name":"Download the data","description":"Download a copy of this data","function":"download","type":"OTHER"},{"url":"https://data-package.ceh.ac.uk/sd/900bf809-5dfd-4232-a654-df58d43b1a3f.zip","name":"Supporting information","description":"Supporting information available to assist in re-use of this dataset","function":"information","type":"OTHER"}],"pointsOfContact":[{"familyName":"Laizé","givenName":"C.L.R.","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"pointOfContact","email":"enquiries@ceh.ac.uk","nameIdentifier":"https://orcid.org/0000-0002-7560-7769","address":{"deliveryPoint":"Maclean Building, Benson Lane, Crowmarsh Gifford","city":"Wallingford","administrativeArea":"Oxfordshire","postalCode":"OX10 8BB","country":"United Kingdom"},"fullName":"Laizé, C.L.R.","pointOfContact":"UK Centre for Ecology & Hydrology"}],"publicationDate":"2024-12-16T00:00:00.000Z","publishers":[{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"publisher","email":"info@eidc.ac.uk"}],"resourceIdentifiers":[{"code":"https://catalogue.ceh.ac.uk/id/900bf809-5dfd-4232-a654-df58d43b1a3f"},{"code":"10.5285/900bf809-5dfd-4232-a654-df58d43b1a3f","codeSpace":"doi"}],"resourceType":{"value":"model"},"responsibleParties":[{"familyName":"Laizé","givenName":"C.L.R.","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"author","email":"enquiries@ceh.ac.uk","nameIdentifier":"https://orcid.org/0000-0002-7560-7769","fullName":"Laizé, C.L.R."},{"familyName":"Smith","givenName":"J.T.","organisationName":"University of Portsmouth","organisationIdentifier":"https://ror.org/03ykbk197","role":"author","email":"Jim.Smith@port.ac.uk","nameIdentifier":"https://orcid.org/0000-0002-0808-2739","fullName":"Smith, J.T."},{"familyName":"Bowes","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/0000-0002-0673-1934","fullName":"Bowes, M.J."},{"familyName":"Laizé","givenName":"C.L.R.","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"pointOfContact","email":"enquiries@ceh.ac.uk","nameIdentifier":"https://orcid.org/0000-0002-7560-7769","address":{"deliveryPoint":"Maclean Building, Benson Lane, Crowmarsh Gifford","city":"Wallingford","administrativeArea":"Oxfordshire","postalCode":"OX10 8BB","country":"United Kingdom"},"fullName":"Laizé, C.L.R.","pointOfContact":"UK Centre for Ecology & Hydrology"},{"organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"rightsHolder","email":"enquiries@ceh.ac.uk"},{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"publisher","email":"info@eidc.ac.uk"},{"organisationName":"NERC EDS Environmental Information Data Centre","organisationIdentifier":"https://ror.org/04xw4m193","role":"custodian","email":"info@eidc.ac.uk"}],"rightsHolders":[{"organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"rightsHolder","email":"enquiries@ceh.ac.uk"}],"supplemental":[{"description":"Bowes, M. 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