An overview of the Geoengineering Model Intercomparison Project (GeoMIP)
Journal of Geophysical Research Atmospheres
American Geophysical Union
This is the final version of the article. Available from the American Geophysical Union via the DOI in this record.
The Geoengineering Model Intercomparison Project (GeoMIP) was designed to determine robust climate system model responses to solar geoengineering. GeoMIP currently consists of four standardized simulations involving reduction of insolation or increased amounts of stratospheric sulfate aerosols. Three more experiments involving marine cloud brightening are planned. This project has improved confidence in the expected climate effects of geoengineering in several key areas, such as the effects of geoengineering on spatial patterns of temperature and the spatial distribution of precipitation, especially extreme precipitation events. However, GeoMIP has also highlighted several important research gaps, such as the effects on terrestrial net primary productivity and the importance of the CO<inf>2</inf> physiological effect in determining the hydrologic cycle response to geoengineering. Future efforts will endeavor to address these gaps, as well as encourage cooperation with the chemistry modeling communities, the impact assessment communities, and other groups interested in model output. Key Points GeoMIP has been quite successful with 13 models participating Three new experiments on marine cloud brightening are planned GeoMIP has improved understanding and highlighted research gaps ©2013. American Geophysical Union. All Rights Reserved.
We thank all participants of the Geoengineering Model Intercomparison Project and their model development teams, the CLIVAR/WCRP Working Group on Coupled Modeling for endorsing GeoMIP, and the scientists managing the Earth System Grid data nodes who have assisted in making the GeoMIP output available. Ben Kravitz is supported by the Fund for Innovative Climate and Energy Research (FICER). The Pacific Northwest National Laboratory is operated for the U.S. Department of Energy by Battelle Memorial Institute under contract DEAC05-76RL01830. Alan Robock is supported by NSF grants AGS-1157525 and CBET-1240507. Jim Haywood was supported by the joint DECC/Defra Met Office Hadley Centre Climate Programme (GA01101) and funding from the European Union Seventh Framework Programme through the EuTRACE project (306395).
Journal of Geophysical Research Atmospheres, 2013, Vol. 118, Issue 23, pp. 13103 - 13107