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contributor authorKravitz, Ben
contributor authorMacMartin, Douglas G.
contributor authorRasch, Philip J.
contributor authorJarvis, Andrew J.
date accessioned2017-06-09T17:11:25Z
date available2017-06-09T17:11:25Z
date copyright2015/10/01
date issued2015
identifier issn0894-8755
identifier otherams-80830.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4223765
description abstracthe authors describe a new method of comparing different climate forcing agents (e.g., CO2 concentration, CH4 concentration, and total solar irradiance) in climate models that circumvents many of the difficulties associated with explicit calculations of efficacy. This is achieved by introducing an explicit feedback loop external to a climate model that adjusts one forcing agent to balance another while keeping global-mean surface temperature constant. The convergence time of this feedback loop can be adjusted, allowing for comparisons of forcing agents to be achieved with relatively short simulations. Comparisons between forcing agents are highly linear in concordance with predicted scaling relationships; for example, the global-mean climate response to a doubling of the CO2 concentration is equivalent to that of a 2.1% change in total solar irradiance. This result is independent of the magnitude of the forcing agent (within the range of radiative forcings considered here) and is consistent across two different climate models.
publisherAmerican Meteorological Society
titleA New Method of Comparing Forcing Agents in Climate Models
typeJournal Paper
journal volume28
journal issue20
journal titleJournal of Climate
identifier doi10.1175/JCLI-D-14-00663.1
journal fristpage8203
journal lastpage8218
treeJournal of Climate:;2015:;volume( 028 ):;issue: 020
contenttypeFulltext


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