European Monitoring and Evaluation Programme Model for the UK (EMEP4UK) daily atmospheric composition and fluxes for 2022-2024

https://doi.org/10.5285/ed9b9379-49b5-41b3-86d9-b88fb3e9f58d

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This dataset is available under the terms of the Open Government Licence

By accessing or using this dataset, you agree to the terms of the relevant licence agreement(s). You will ensure that this dataset is cited in any publication that describes research in which the data have been used.

Acknowledgements required (third-party datasets used to drive the model): Meteorology from the Weather Research & Forecasting (WRF) model has been used to drive the EMEP4UK model. The fifth-generation European Centre for Medium-Range Weather Forecasts (ECMWF) atmospheric reanalysis of the global climate (ERA5) was used as initial and boundary conditions, and to nudge the WRF model.

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This dataset includes daily averaged atmospheric composition for the UK for key air pollutants nitrogen, sulphur, particulates and ozone for the years 2022 - 2024. The dataset was generated with the European Monitoring and Evaluation Programme for the UK (EMEP4UK) model version 5.0, modified to improve wet deposition rates. The underlying meteorology was generated using the Weather Research and Forecasting (WRF) model version 4.4.2. The UK emissions were taken from the 2025 release of the National Atmospheric Emissions Inventory (NAEI), with base year 2023.

Publication date: 2026-06-16

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How do we collect this information?

Format

NetCDF

Spatial information

Study area

Spatial representation type

Raster

Spatial reference system

OSGB 1936 / British National Grid

Spatial resolution

3000 metres

Temporal information

Temporal extent

2022-01-01 to 2024-12-31

Provenance & quality

Daily average concentrations for a model domain covering the UK, with a grid resolution of about 3 km x 3 km, were calculated using the EMEP4UK atmospheric chemistry transport model. The model was evaluated using the UK Automatic Urban and Rural Network (AURN) monitoring stations. R was used to access the AURN dataset to evaluate the EMEP4UK model output.

Key input data to the EMEP4UK model (version 5.0 with slightly modified wet deposition) include:
- anthropogenic emissions for the UK from the National Atmospheric Emissions Inventory (released 2025, base year 2023);
- anthropogenic emissions for the Republic of Ireland from MapEire;
- anthropogenic emissions for Europe from the Centre for Emissions Inventories and Projections;
- UK land surface data from the Land Cover Map 2015; and
- European land cover data and other default EMEP model inputs from the EMEP repository.

The deposited data were processed from the full EMEP4UK model output to a subset containing essential variables only. The netCDF Operators tools, version 5.3.3, were used to subset the model output.

Licensing and constraints

This dataset is available under the terms of the Open Government Licence

Cite this dataset as:

Hood, C.; Nemitz, E.; Vieno, M.; Liska, T.; Scheffler, J.; Beck, R.; Carnell, E.; Tomlinson, S.; Pearson, C. (2026). European Monitoring and Evaluation Programme Model for the UK (EMEP4UK) daily atmospheric composition and fluxes for 2022-2024. NERC EDS Environmental Information Data Centre. https://doi.org/10.5285/ed9b9379-49b5-41b3-86d9-b88fb3e9f58d

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