Open AccessGeoengineering by stratospheric SO<sub>2</sub> injection: results from the Met Office HadGEM2 climate model and comparison with the Goddard Institute for Space Studies ModelE
Author(s) -
Anthony C. Jones,
Jim M. Haywood,
Oliviér Boucher,
Ben Kravitz,
Alan Robock
Publication year - 2010
Publication title -
atmospheric chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.622
H-Index - 206
eISSN - 1680-7324
pISSN - 1680-7316
DOI - 10.5194/acp-10-5999-2010
Subject(s) - environmental science , stratosphere , precipitation , climate model , geoengineering , atmospheric sciences , climatology , climate change , meteorology , physics , ecology , geology , biology
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