Injection strategy – a driver of atmospheric circulation and ozone response to stratospheric aerosol geoengineering

Bednarz, Ewa M.; Butler, Amy H.; Visioni, Daniele; Zhang, Yan; Kravitz, Ben; MacMartin, Douglas G.

doi:https://doi.org/10.5194/acp-23-13665-2023

Articles | Volume 23, issue 21

https://doi.org/10.5194/acp-23-13665-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Resolving uncertainties in solar geoengineering through multi-model...

https://doi.org/10.5194/acp-23-13665-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 21

Research article

|

03 Nov 2023

Research article |

| 03 Nov 2023

Injection strategy – a driver of atmospheric circulation and ozone response to stratospheric aerosol geoengineering

Ewa M. Bednarz, Amy H. Butler, Daniele Visioni, Yan Zhang, Ben Kravitz, and Douglas G. MacMartin

Supplement

https://doi.org/10.5194/acp-23-13665-2023-supplement

Data sets

Data from: "Injection strategy - a driver of atmospheric circulation and ozone response to stratospheric aerosol geoengineering" by Bednarz et al. (2023) E. M. Bednarz, Y. Zhang, D. Visioni, and D. MacMartin https://doi.org/10.5281/zenodo.10042312

Short summary

We use a state-of-the-art Earth system model and a set of stratospheric aerosol injection (SAI) strategies to achieve the same level of global mean surface cooling through different combinations of location and/or timing of the injection. We demonstrate that the choice of SAI strategy can lead to contrasting impacts on stratospheric and tropospheric temperatures, circulation, and chemistry (including stratospheric ozone), thereby leading to different impacts on regional surface climate.