Articles | Volume 15, issue 22
https://doi.org/10.5194/acp-15-13145-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-15-13145-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
27 Nov 2015
Research article |
| 27 Nov 2015
A potential vorticity-based determination of the transport barrier in the Asian summer monsoon anticyclone
F. Ploeger
CORRESPONDING AUTHOR
Institute for Energy and Climate research: Stratosphere (IEK–7), Forschungszentrum Jülich, Jülich, Germany
C. Gottschling
Institute for Energy and Climate research: Stratosphere (IEK–7), Forschungszentrum Jülich, Jülich, Germany
S. Griessbach
Institute for Energy and Climate research: Stratosphere (IEK–7), Forschungszentrum Jülich, Jülich, Germany
J.-U. Grooß
Institute for Energy and Climate research: Stratosphere (IEK–7), Forschungszentrum Jülich, Jülich, Germany
G. Guenther
Institute for Energy and Climate research: Stratosphere (IEK–7), Forschungszentrum Jülich, Jülich, Germany
P. Konopka
Institute for Energy and Climate research: Stratosphere (IEK–7), Forschungszentrum Jülich, Jülich, Germany
R. Müller
Institute for Energy and Climate research: Stratosphere (IEK–7), Forschungszentrum Jülich, Jülich, Germany
Institute for Energy and Climate research: Stratosphere (IEK–7), Forschungszentrum Jülich, Jülich, Germany
Institute for Energy and Climate research: Stratosphere (IEK–7), Forschungszentrum Jülich, Jülich, Germany
M. Tao
Institute for Energy and Climate research: Stratosphere (IEK–7), Forschungszentrum Jülich, Jülich, Germany
J. Ungermann
Institute for Energy and Climate research: Stratosphere (IEK–7), Forschungszentrum Jülich, Jülich, Germany
Institute for Energy and Climate research: Stratosphere (IEK–7), Forschungszentrum Jülich, Jülich, Germany
M. von Hobe
Institute for Energy and Climate research: Stratosphere (IEK–7), Forschungszentrum Jülich, Jülich, Germany
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Latest update: 06 Dec 2025
Short summary
The Asian summer monsoon provides an important pathway of tropospheric source gases and pollution into the lower stratosphere. This transport is characterized by deep convection and steady upwelling, combined with confinement inside a large-scale anticyclonic circulation in the upper troposphere and lower stratosphere. In this paper, we show that a barrier to horizontal transport in the monsoon can be determined from a local maximum in the gradient of potential vorticity.
The Asian summer monsoon provides an important pathway of tropospheric source gases and...
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