Articles | Volume 13, issue 3
https://doi.org/10.5194/gmd-13-1623-2020
https://doi.org/10.5194/gmd-13-1623-2020
Development and technical paper
 | 
30 Mar 2020
Development and technical paper |  | 30 Mar 2020

Local fractions – a method for the calculation of local source contributions to air pollution, illustrated by examples using the EMEP MSC-W model (rv4_33)

Peter Wind, Bruce Rolstad Denby, and Michael Gauss

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Butler, T., Lupascu, A., Coates, J., and Zhu, S.: TOAST 1.0: Tropospheric Ozone Attribution of Sources with Tagging for CESM 1.2.2, Geosci. Model Dev., 11, 2825–2840, https://doi.org/10.5194/gmd-11-2825-2018, 2018. a
Clappier, A., Belis, C. A., Pernigotti, D., and Thunis, P.: Source apportionment and sensitivity analysis: two methodologies with two different purposes, Geosci. Model Dev., 10, 4245–4256, https://doi.org/10.5194/gmd-10-4245-2017, 2017. a
Denby, B. R., et al.: Geosci. Model Dev., in preparation, 2020. a
Dunker, A. M., Yarwood, G., Ortmann, J. P., and Wilson, G. M.: Comparison of Source Apportionment and Source Sensitivity of Ozone in a Three-Dimensional Air Quality Model, Environ. Sci. Tech., 36, 2953–2964, https://doi.org/10.1021/es011418f, 2002. a
Elbern, H. and Schmidt, H.: A four-dimensional variational chemistry data assimilations scheme for Eulerian chemistry transport modeling, J. Geophys. Res., 104, 18583–18598, 1999. a
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Short summary
We present a new method for individually quantifying the contributions from different sources to local air pollution. The method can be used to distinguish the sources of local air pollution for any position in one single model simulation and thus to provide detailed maps of the origin of the pollutants. Hence, it can be used for time-critical operational services by providing scientific information as input for local policy decisions on air pollution abatement.
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