Articles | Volume 17, issue 19
Research article
09 Oct 2017
Research article |  | 09 Oct 2017

Impacts of stratospheric sulfate geoengineering on tropospheric ozone

Lili Xia, Peer J. Nowack, Simone Tilmes, and Alan Robock

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Cited articles

Ainsworth, E. A., Yendrek, C. R., Sitch, S., Collins, W. J., and Emberson, L. D.: The effects of tropospheric ozone on net primary productivity and implications for climate change, Ann. Rev. Plant Biol., 63, 637–661,, 2012.
Ammann, C. M., Washington, W. M., Meehl, G. A., Buja, L., and Teng, H.: Climate engineering through artificial enhancement of natural forcings: Magnitudes and implied consequences, J. Geophys. Res., 115, D22109,, 2010.
Aquila, V., Oman, L. D., Stolarski, R. S., Colarco, P. R., and Newman, P. A.: Dispersion of the volcanic sulfate cloud from a Mount Pinatubo-like eruption, J. Geophys. Res., 117, D06216,, 2012.
Aquila, V., Oman, L. D., Stolarski, R. S., Douglass, A. R., and Newman, P. A.: The response of ozone and nitrogen dioxide to the eruption of Mt. Pinatubo at southern and northern midlatitudes, J. Atmos. Sci., 70, 894–900,, 2013.
Ashmore, M. R.: Assessing the future global impacts of ozone on vegetation, Plant, Cell Environ., 28, 949–964,, 2005.
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.
Final-revised paper