Generalized local fractions – a method for the calculation of sensitivities to emissions from multiple sources for chemically active species, illustrated using the EMEP MSC-W model (rv5.5)

Wind, Peter; van Caspel, Willem

doi:https://doi.org/10.5194/gmd-18-5397-2025

Articles | Volume 18, issue 16

https://doi.org/10.5194/gmd-18-5397-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-18-5397-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 16

Development and technical paper

|

27 Aug 2025

Development and technical paper |

| 27 Aug 2025

Generalized local fractions – a method for the calculation of sensitivities to emissions from multiple sources for chemically active species, illustrated using the EMEP MSC-W model (rv5.5)

Peter Wind and Willem van Caspel

Data sets

EMEP/MSC-W model version rv5.5 with sample of input data Peter WInd and WIllem van Caspel https://doi.org/10.5281/zenodo.14162688

Model code and software

EMEP/MSC-W model version rv5.5 with sample of input data Peter WInd and WIllem van Caspel https://doi.org/10.5281/zenodo.14162688

OpenSource v5.5 (202412) EMEP MSC-W https://doi.org/10.5281/zenodo.14507729

Short summary

This paper presents a numerical method to assess the origin of air pollution. Combined with a numerical air pollution transport and chemistry model, it can follow the contributions from a large number of emission sources. The result is a series of maps that give the relative contributions from, for example, all European countries at any point on the map.