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Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
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Volume 10, issue 13 | Copyright
Atmos. Chem. Phys., 10, 5999-6006, 2010
https://doi.org/10.5194/acp-10-5999-2010
© Author(s) 2010. This work is distributed under
the Creative Commons Attribution 3.0 License.

  05 Jul 2010

05 Jul 2010

Geoengineering by stratospheric SO2 injection: results from the Met Office HadGEM2 climate model and comparison with the Goddard Institute for Space Studies ModelE

A. Jones1, J. Haywood1, O. Boucher1, B. Kravitz2, and A. Robock2 A. Jones et al.
  • 1Met Office Hadley Centre, Exeter, UK
  • 2Department of Environmental Sciences, Rutgers University, New Brunswick, NJ, USA

Abstract. We examine the response of the Met Office Hadley Centre's HadGEM2-AO climate model to simulated geoengineering by continuous injection of SO2 into the lower stratosphere, and compare the results with those from the Goddard Institute for Space Studies ModelE. Despite the differences between the models, we find a broadly similar geographic distribution of the response to geoengineering in both models in terms of near-surface air temperature and mean June–August precipitation. The simulations also suggest that significant changes in regional climate would be experienced even if geoengineering was successful in maintaining global-mean temperature near current values, and both models indicate rapid warming if geoengineering is not sustained.

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