Articles | Volume 22, issue 6
Atmos. Chem. Phys., 22, 3841–3860, 2022
Atmos. Chem. Phys., 22, 3841–3860, 2022
Research article
23 Mar 2022
Research article | 23 Mar 2022

Characterization of transport from the Asian summer monsoon anticyclone into the UTLS via shedding of low potential vorticity cutoffs

Jan Clemens et al.

Data sets

The ERA-Interim archive Version 2.0 P. Berrisford, D. P. Dee, P. Poli, R. Brugge, M. Fielding, M. Fuentes, P. W. Kållberg, S. Kobayashi, S. Uppala, and A. Simmons

Model code and software

GitLab archive CLaMS

Short summary
Highly polluted air flows from the surface to higher levels of the atmosphere during the Asian summer monsoon. At high levels, the air is trapped within eddies. Here, we study how air masses can leave the eddy within its cutoff, how they distribute, and how their chemical composition changes. We found evidence for transport from the eddy to higher latitudes over the North Pacific and even Alaska. During transport, trace gas concentrations within cutoffs changed gradually, showing steady mixing.
Final-revised paper