Changing transport processes in the stratosphere by radiative heating of sulfate aerosols

Niemeier, Ulrike; Schmidt, Hauke

doi:https://doi.org/10.5194/acp-17-14871-2017

Articles | Volume 17, issue 24

https://doi.org/10.5194/acp-17-14871-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

The Geoengineering Model Intercomparison Project (GeoMIP):...

https://doi.org/10.5194/acp-17-14871-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 17, issue 24

Research article

|

14 Dec 2017

Research article |

| 14 Dec 2017

Changing transport processes in the stratosphere by radiative heating of sulfate aerosols

Ulrike Niemeier and Hauke Schmidt

Supplement

https://doi.org/10.5194/acp-17-14871-2017-supplement

Data sets

MPLICC - Implications and risks of engineering solar radiation to limit climate change U. Niemeier and H. Schmidt http://cera-www.dkrz.de/WDCC/ui/Compact.jsp?acronym=DKRZ_lta_550

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Short summary

An artificial stratospheric sulfur layer heats the lower stratosphere which impacts stratospheric dynamics and transport. The quasi-biennial oscillation shuts down due to the heated sulfur layer which impacts the meridional transport of the sulfate aerosols. The tropical confinement of the sulfate is stronger and the radiative forcing efficiency of the aerosol layer decreases compared to previous studies, as does the forcing when increasing the injection height.