dc.contributor.author | Ferraro, Angus J. | |
dc.contributor.author | Highwood, Eleanor J. | |
dc.contributor.author | Charlton-Perez, Andrew J. | |
dc.date.accessioned | 2014-01-31T16:14:14Z | |
dc.date.issued | 2014 | |
dc.description.abstract | Geoengineering by injection of reflective aerosols into the stratosphere has been proposed as a way to counteract the warming effect of greenhouse gases by reducing the intensity of solar radiation reaching the surface. Here, climate model simulations are used to examine the effect of geoengineering on the tropical overturning circulation. The strength of the circulation is related to the atmospheric static stability and has implications for tropical rainfall. The tropical circulation is projected to weaken under anthropogenic global warming. Geoengineering with stratospheric sulfate aerosol does not mitigate this weakening of the circulation. This response is due to a fast adjustment of the troposphere to radiative heating from the aerosol layer. This effect is not captured when geoengineering is modelled as a reduction in total solar irradiance, suggesting caution is required when interpreting model results from solar dimming experiments as analogues for stratospheric aerosol geoengineering. | en_GB |
dc.description.sponsorship | Natural Environment Research Council | en_GB |
dc.identifier.citation | Vol. 9 (1), article 014001 | en_GB |
dc.identifier.doi | 10.1088/1748-9326/9/1/014001 | |
dc.identifier.grantnumber | NE/I528569/1 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/14470 | |
dc.language.iso | en | en_GB |
dc.publisher | Institute of Physics | en_GB |
dc.relation.url | http://dx.doi.org/10.1088/1748-9326/9/1/014001 | en_GB |
dc.rights | Content from this work may be used under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 licence (http://creativecommons.org/licenses/by-nc-sa/3.0/). Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. | en_GB |
dc.subject | stratospheric aerosol geoengineering | en_GB |
dc.subject | tropical overturning circulation | en_GB |
dc.subject | radiative transfer | en_GB |
dc.title | Weakened tropical circulation and reduced precipitation in response to geoengineering | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2014-01-31T16:14:14Z | |
dc.identifier.issn | 1748-9326 | |
exeter.article-number | 014001 | |
dc.description | Copyright
© 2014 IOP Publishing Ltd | en_GB |
dc.description | Content from this work may be used under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 licence (http://creativecommons.org/licenses/by-nc-sa/3.0/). Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. | en_GB |
dc.description | Open Access journal | en_GB |
dc.identifier.journal | Environmental Research Letters | en_GB |