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Volume 15, issue 6
Atmos. Chem. Phys., 15, 3565–3573, 2015
https://doi.org/10.5194/acp-15-3565-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Atmos. Chem. Phys., 15, 3565–3573, 2015
https://doi.org/10.5194/acp-15-3565-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 31 Mar 2015

Research article | 31 Mar 2015

Rapid transport of East Asian pollution to the deep tropics

M. J. Ashfold et al.

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Cited articles

Ainsworth, E. A., Yendrek, C. R., Sitch, S., Collins, W. J., and Emberson, L. D.: The Effects of Tropospheric Ozone on Net Primary Productivity and Implications for Climate Change, Ann. Rev. Plant Biol., 63, 637–661, https://doi.org/10.1146/annurev-arplant-042110-103829, 2012.
Akimoto, H., Mukai, H., Nishikawa, M., Murano, K., Hatakeyama, S., Liu, C.-M., Buhr, M., Hsu, K. J., Jaffe, D. A., Zhang, L., Honrath, R., Merrill, J. T., and Newell, R. E.: Long-range transport of ozone in the East Asian Pacific rim region, J. Geophys. Res.-Atmos., 101, 1999–2010, https://doi.org/10.1029/95JD00025, 1996.
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Ashfold, M. J., Harris, N. R. P., Atlas, E. L., Manning, A. J., and Pyle, J. A.: Transport of short-lived species into the Tropical Tropopause Layer, Atmos. Chem. Phys., 12, 6309–6322, https://doi.org/10.5194/acp-12-6309-2012, 2012.
Barletta, B., Meinardi, S., Simpson, I. J., Rowland, F. S., Chan, C.-Y., Wang, X., Zou, S., Chan, L. Y., and Blake, D. R.: Ambient halocarbon mixing ratios in 45 Chinese cities, Atmos. Environ., 40, 7706–7719, https://doi.org/10.1016/j.atmosenv.2006.08.039, 2006.
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We use observations and model calculations to show that "cold surges" occurring during Northern Hemisphere winter can rapidly transport East Asian pollution to equatorial Southeast Asia. As well as affecting atmospheric composition near the surface, we argue that strong convection can subsequently lift the polluted air masses to the tropical upper troposphere. This suggests a potentially important connection between midlatitude pollution sources and the lower stratosphere.
We use observations and model calculations to show that "cold surges" occurring during Northern...
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