Stratospheric dynamics and midlatitude jets under geoengineering with space mirrors and sulfate and titania aerosols

@article{Ferraro2015StratosphericDA,  title={Stratospheric dynamics and midlatitude jets under geoengineering with space mirrors and sulfate and titania aerosols},  author={Angus J. Ferraro and Andrew James Charlton-Perez and Eleanor J. Highwood},  journal={Journal of Geophysical Research: Atmospheres},  year={2015},  volume={120},  pages={414 - 429},  url={https://api.semanticscholar.org/CorpusID:33804616}}
The impact on the dynamics of the stratosphere of three approaches to geoengineering by solar radiation management is investigated using idealized simulations of a global climate model. The approaches are geoengineering with sulfate aerosols, titania aerosols, and reduction in total solar irradiance (representing mirrors placed in space). If it were possible to use stratospheric aerosols to counterbalance the surface warming produced by a quadrupling of atmospheric carbon dioxide concentrations… 

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67 References

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