Articles | Volume 15, issue 6
Atmos. Chem. Phys., 15, 3565–3573, 2015
https://doi.org/10.5194/acp-15-3565-2015
Atmos. Chem. Phys., 15, 3565–3573, 2015
https://doi.org/10.5194/acp-15-3565-2015

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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Short summary
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.
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