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Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
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Volume 17, issue 19
Atmos. Chem. Phys., 17, 11913–11928, 2017
https://doi.org/10.5194/acp-17-11913-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

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

Atmos. Chem. Phys., 17, 11913–11928, 2017
https://doi.org/10.5194/acp-17-11913-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 09 Oct 2017

Research article | 09 Oct 2017

Impacts of stratospheric sulfate geoengineering on tropospheric ozone

Lili Xia et al.

Data sets

The monthly atmospheric output from RCP6.0, G4SSA, and G4SSA-S NCAR Earth System Grid https://www.earthsystemgrid.org/dataset/ucar.cgd.ccsm4.geoeng.ccmi.html

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Short summary
Ozone is a key air pollutant. We model two geoengineering schemes, stratospheric sulfur injection and solar irradiance reduction, to compare their impacts on atmospheric ozone concentrations. With the nearly identical global mean surface temperature reduction, solar dimming increases global average surface ozone concentration, while sulfate injection decreases it. This difference is due to different stratosphere–troposphere exchange of ozone and tropospheric ozone chemistry in the two scenarios.
Ozone is a key air pollutant. We model two geoengineering schemes, stratospheric sulfur...
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