Articles | Volume 26, issue 11
https://doi.org/10.5194/acp-26-8125-2026
https://doi.org/10.5194/acp-26-8125-2026
Research article
 | 
11 Jun 2026
Research article |  | 11 Jun 2026

Modelling the deep convective transport of trace gases (CO, NH3 and SO2) from the planetary boundary layer to the Asian summer monsoon anticyclone

Jianzhong Ma, Bin Chen, Qianshan He, Xiaolu Yan, Gaili Wang, Siyang Cheng, Benedikt Steil, Christoph Brühl, Holger Tost, Michael Höpfner, Andrea Pozzer, and Jos Lelieveld

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Short summary
We use a global atmospheric chemistry and climate model to study the efficiency and effectiveness of the deep convective transport of CO, NH3 and SO2 from the planetary boundary layer into the Asian summer monsoon anticyclone. We find that in contrast to CO and NH3, the SO2 enhancements within the anticyclone are very weak. The wet scavenging over South Asia is more effective for SO2 than NH3 at reducing their amounts reaching the Tibetan Plateau and the Asian summer monsoon anticyclone.
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