Articles | Volume 16, issue 24
https://doi.org/10.5194/acp-16-15581-2016
https://doi.org/10.5194/acp-16-15581-2016
Research article
 | 
16 Dec 2016
Research article |  | 16 Dec 2016

Projection of North Atlantic Oscillation and its effect on tracer transport

Sara Bacer, Theodoros Christoudias, and Andrea Pozzer

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Cited articles

Baldwin, M. P. and Dunkerton, T. J.: Stratospheric Harbingers of Anomalous Weather Regimes, Science, 294, 581–584, 2001.
Christoudias, T., Pozzer, A., and Lelieveld, J.: Influence of the North Atlantic Oscillation on air pollution transport, Atmos. Chem. Phys., 12, 869–877, https://doi.org/10.5194/acp-12-869-2012, 2012.
Creilson, J. K., Fishman, J., and Wozniak, A. E.: Intercontinental transport of tropospheric ozone: a study of its seasonal variability across the North Atlantic utilizing tropospheric ozone residuals and its relationship to the North Atlantic Oscillation, Atmos. Chem. Phys., 3, 2053–2066, https://doi.org/10.5194/acp-3-2053-2003, 2003.
Dietmüller, S., Jöckel, P., Tost, H., Kunze, M., Gellhorn, C., Brinkop, S., Frömming, C., Ponater, M., Steil, B., Lauer, A., and Hendricks, J.: A new radiation infrastructure for the Modular Earth Submodel System (MESSy, based on version 2.51), Geosci. Model Dev., 9, 2209–2222, https://doi.org/10.5194/gmd-9-2209-2016, 2016.
Dorn, W., Dethloff, K., Rinke, A., and Roeckner, E.: Competition of NAO regime changes and increasing greenhouse gases and aerosols with respect to Arctic climate projections, Clim. Dynam., 21, 447–458, https://doi.org/10.1007/s00382-003-0344-2, 2003.
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We investigate the influence of the North Atlantic Oscillation on atmospheric pollutant transport in the 21st century under a global climate-change scenario, using a coupled atmosphere–chemistry–ocean general circulation model. We find that, at the end of the century, the south-western Mediterranean and northern Africa will see higher pollutant concentrations during positive NAO phases with respect to the past, while a wider part of north Europe will see lower pollutant concentrations.
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