Other, yet to be submitted work ;) On Thursday, 30 July 2015 00:11:37 UTC+2, andrewjlockley wrote: > > Poster's note : other, recent research by the author finds the likelihood > of SRM termination to be low > > http://adsabs.harvard.edu/abs/2015EGUGA..17.4810I > > Initial Climate Response to a Termination Shock > > Irvine, Peter > Affiliation: > AA( [email protected] <javascript:>) > > EGU General Assembly 2015 > 04/2015 > > Abstract > > The risk of the termination of a deployment of solar radiation management > (SRM) geoengineering has been raised as one of the key concerns about these > ideas. Early studies demonstrated that a rapid warming of the climate would > follow such a termination with global mean temperatures rapidly rising > towards the levels that would have been expected in the absence of SRM > geoengineering. Further work has noted the contrasting timescale of the > adjustment of global mean temperature and sea-level rise, with sea-levels > responding much slower and not reaching the same levels as would have been > the case in the absence of SRM geoengineering. Whilst these previous > studies have shown the basics of the response to a termination of SRM, a > detailed analysis of the climate response in the first months or years of a > termination has not been investigated. To conduct such an analysis tens of > simulations with a termination of SRM are conducted, starting from the end > of a G1 simulation with the HadCM3 model. The termination is initiated in > Spring, Summer, Autumn and Winter to investigate whether the response > depends on the season. Analyzing these results I find some novel dynamic > responses in the initial months and years following a termination of SRM > which have not been seen in previous studies which employed decadal-scale > averages. These include: A reduction in the global-scale hydrological > cycle's intensity in the first weeks following termination, counter to the > longer-term increase; An almost instantaneous adjustment of land-mean > precipitation to the equilibrium value; And substantial shifts in the > pattern of precipitation in the initial years that are distinct from those > seen in the equilibrium response and which are characterized by large > increases in terrestrial precipitation and runoff in many regions. >
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