{"access":"Access to EMEP MSC-W and WRF is open access: available to use at no cost via GitHub.","capabilities":"EMEP4UK is an atmospheric chemistry transport model (ACTM) that uses process understanding to simulate and predict atmospheric composition, transport and deposition (dry and wet) of pollutants, including: particulate matter (PM10, PM2.5); seondary organic aerosols (SOA); secondary inorganic aerosols (SIA); elemental carbon (EC); sulphur dioxide (SO2); ammonia (NH3); nitorogen oxides (NOx) and ozone O3).  It models surface and 3D concentrations of pollutants for the UK with horizontal resolutions from 1km to 100km (typically 3x3km2 grid) at hourly intervals (and can calculate annual averages).  The Weather Research Forecast Model (WRF) is used to calculate the required meteorological input data for the ACTM.","description":"EMEP4UK provides UK atmospheric chemistry forecasts, linked to weather forecasts, to predict the transport and deposit of pollutants carried by air.  It is used by weather and pollution forecasters, government agencies and researchers to monitor air pollution risks. ","fundingSources":"Development of EMEP4UK was funded by: UKRI-NERC National Capability (UK-SCAPE programme); Defra and various UKRI-NERC research project grants.","id":"9ae81c6b-fb6b-40b9-b9bf-5294a8b04b61","infrastructureCategory":{"value":"models","description":"Environmental models","infrastructureClass":"Digital infrastructures","uri":"http://vocabs.ceh.ac.uk/ri/model"},"infrastructureChallenge":[{"value":"Pollution"}],"lifecycle":"EMEP4UK was derived by UKCEH in 2005 from the EMEP MSC-w model developed over the last 30 years by the MSC-W Centre in Oslo.  The models are updated annually, and previous versions are kept alive for ongoing projects.  UKCEH investment approx 1 FTE person per year.","metadataDate":"2025-04-09T09:24:49","onlineResources":[{"url":"https://www.emep.int   ","function":"website","type":"OTHER"},{"url":"https://www.wrf-model.org  ","function":"website","type":"OTHER"},{"url":"https://www.emep4uk.ceh.ac.uk   ","function":"website","type":"OTHER"}],"owners":[{"familyName":"Vienno","givenName":"Massimo","displayName":"Massimo Vienno","organisationName":"UK Centre for Ecology & Hydrology","organisationIdentifier":"https://ror.org/00pggkr55","role":"pointOfContact","email":"enquiries@ceh.ac.uk","fullName":"Massimo Vienno","pointOfContact":"UK Centre for Ecology & Hydrology"}],"partners":"EMEP4UK is derived from EMEP MSC-w in partnership with: Meteorological Synthesizing Centre-West (MSC-W) of the European Monitoring and Evaluation Programme (EMEP); Norwegian Met Office; University of Edinburgh; Defra; and the UK-SCAPE consortium.","resourceIdentifiers":[{"code":"https://catalogue.ceh.ac.uk/id/9ae81c6b-fb6b-40b9-b9bf-5294a8b04b61"}],"scienceArea":"Atmospheric Chemistry and Effects","title":"European Monitoring and Evaluation Programme (EMEP4UK) UK arm of the Meteorological Synthesizing Centre-West (MSC-W)","type":"infrastructureRecord","uniqueness":"The EMEP model and its derivative EMEP4UK is one of many similar atmospheric chemistry transport models (ACTMs) developed and used around the world.  Nevertheless EMEP is used by the NSC-W Centre, UKCEH and CLRTAP (the UNECE Convention on Long Range Transport of Air Pollution) because: it provides comprehensive coverage of air pollutants, including nitrogen and sulphur deposition; it is fast enough to use on relatively small high-performance computing facilities; it performs well against observations; and we have a direct link with the model authors to improve the model and fix bugs.","uri":"https://catalogue.ceh.ac.uk/id/9ae81c6b-fb6b-40b9-b9bf-5294a8b04b61","users":["EMEP4UK is used to monitor pollution risks.  Users include: weather and pollution forecasters; Defra and other UK (including devolved) government agencies; UK and international researchers."]}