Observations of PAN and its confinement in the Asian summer monsoon
anticyclone in high spatial resolution

Ungermann, Jörn; Ern, Mandfred; Kaufmann, Martin; Müller, Rolf; Spang, Reinhold; Ploeger, Felix; Vogel, Bärbel; Riese, Martin

doi:https://doi.org/10.5194/acp-16-8389-2016

Articles | Volume 16, issue 13

https://doi.org/10.5194/acp-16-8389-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-16-8389-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 16, issue 13

Research article

|

12 Jul 2016

Research article |

| 12 Jul 2016

Observations of PAN and its confinement in the Asian summer monsoon anticyclone in high spatial resolution

Jörn Ungermann, Mandfred Ern, Martin Kaufmann, Rolf Müller, Reinhold Spang, Felix Ploeger, Bärbel Vogel, and Martin Riese

Supplement

https://doi.org/10.5194/acp-16-8389-2016-supplement

Data sets

ERA-Interim data ECMWF Web API https://software.ecmwf.int/wiki/display/WEBAPI/Access+ECMWF+Public+Datasets

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Short summary

This paper presents an analysis of temperature and the trace gases PAN and O₃ in the Asian Summer Monsoon (ASM) region. The positive PAN anomaly consisting of polluted air is confined vertically within the main ASM anticyclone, whereas a recently shed eddy exhibits enhanced PAN VMRs for 1 to 2 km above the thermal tropopause. This implies that eddy shedding provides a very rapid horizontal transport pathway of Asian pollution into the extratropical lowermost stratosphere.