Global-to-mesoscale air quality modelling

The group is involved in multi-scale modeling of atmospheric composition and air quality, for instance in development and validation of air quality models for different pollutants, especially particulate matter, nitrogen oxides, and ozone, as well as in application of models in international and national projects. The group also provides operational air pollution forecasting for European, Scandinavian, and Helsinki regions and provides the decision support service for accidental releases, volcanic eruptions, and other airborne hazards.

SILAM is a global-to-meso-scale dispersion model developed for atmospheric composition, air quality, and emergency decision support applications, as well as for inverse dispersion problem solution. SILAM web site.


Sofiev, M., Vira, J., Kouznetsov, R., Prank, M., Soares, J., Genikhovich, E. (2015) Construction of the SILAM Eulerian atmospheric dispersion model based on the advection algorithm of Michael Galperin, Geosci. Model Developm. 8, 3497-3522, doi:10.5194/gmd-8-3497-2015.

Kouznetsov, R., Sofiev, M., Vira, J., and Stiller, G. (2020) Simulating age of air and distribution of SF6 in the stratosphere with SILAM model, Atmos. Chem. Phys., v.20, issue 9, pp. 5837-5859,, doi:10.5194/acp-20-5837-2020.

Sofiev, M., Kouznetsov, R., Hänninen, R., and Sofieva, V. F. (2020): Technical Note: Intermittent reduction of the stratospheric ozone over Northern Europe caused by a storm in Atlantic Ocean, Atmos. Chem. Phys., 20, 1839–1847,, doi:10.5194/acp-20-1839-2020.

Sofiev, M., Winebrake, J.J., Johansson, L., Carr, E.W., Prank, M., Soares, J., Vira, J., Kouznetsov, R., Jalkanen, J.-P., Corbett,J.-J. (2018) Cleaner fuels for ships provide public health benefits with climate tradeoffs. Nature Comm., doi:10.1038/s41467-017-02774-9.

Vira, J., Carboni, E., Grainger, R.G., Sofiev, M., (2017) Variational assimilation of IASI SO2 plume height and total-column retrievals in the 2010 eruption of Eyjafjallajokull using the SILAM v5.3 chemistry transport model. Geosci. Model Dev., 10, 1985–2008,, doi:10.5194/gmd-10-1985-2017.

Soares, J., Sofiev, M., Geels, C., Christensen, J.H., Anderson, C., Tsyro, S., Langner, J. (2016) Impact of climate change on the production and transport of sea salt aerosol on European seas. ACP, 16, 13081-13104, doi:10.5194/acp-16-13081-2016.