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    The Sensitivity of the Rate of Transient Climate Change to Ocean Physics Perturbations

    Source: Journal of Climate:;2007:;volume( 020 ):;issue: 010::page 2315
    Author:
    Collins, M.
    ,
    Brierley, C. M.
    ,
    MacVean, M.
    ,
    Booth, B. B. B.
    ,
    Harris, G. R.
    DOI: 10.1175/JCLI4116.1
    Publisher: American Meteorological Society
    Abstract: ?Perturbed physics? ensembles of Hadley Centre climate models have recently been used to quantify uncertainties in atmospheric and surface climate feedbacks under enhanced levels of CO2, and to produce probabilistic estimates of the magnitude of equilibrium climate change. The rate of time-dependent climate change is determined both by the strength of atmosphere?surface climate feedbacks and by the strength of processes that remove heat from the surface to the deep ocean. Here a first small ensemble of coupled atmosphere?ocean climate model experiments in which the parameters that control three key ocean physical processes are perturbed is described. It is found that the perturbations have little impact on the rate of ocean heat uptake, and thus have little impact on the time-dependent rate of global warming. Under the idealized scenario of 1% yr?1 compounded CO2 increase, the spread in the transient climate response is of the order of a few tenths of a degree, in contrast to the spread of order of 1° caused by perturbing atmospheric model parameters.
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      The Sensitivity of the Rate of Transient Climate Change to Ocean Physics Perturbations

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4221263
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    contributor authorCollins, M.
    contributor authorBrierley, C. M.
    contributor authorMacVean, M.
    contributor authorBooth, B. B. B.
    contributor authorHarris, G. R.
    date accessioned2017-06-09T17:03:06Z
    date available2017-06-09T17:03:06Z
    date copyright2007/05/01
    date issued2007
    identifier issn0894-8755
    identifier otherams-78579.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4221263
    description abstract?Perturbed physics? ensembles of Hadley Centre climate models have recently been used to quantify uncertainties in atmospheric and surface climate feedbacks under enhanced levels of CO2, and to produce probabilistic estimates of the magnitude of equilibrium climate change. The rate of time-dependent climate change is determined both by the strength of atmosphere?surface climate feedbacks and by the strength of processes that remove heat from the surface to the deep ocean. Here a first small ensemble of coupled atmosphere?ocean climate model experiments in which the parameters that control three key ocean physical processes are perturbed is described. It is found that the perturbations have little impact on the rate of ocean heat uptake, and thus have little impact on the time-dependent rate of global warming. Under the idealized scenario of 1% yr?1 compounded CO2 increase, the spread in the transient climate response is of the order of a few tenths of a degree, in contrast to the spread of order of 1° caused by perturbing atmospheric model parameters.
    publisherAmerican Meteorological Society
    titleThe Sensitivity of the Rate of Transient Climate Change to Ocean Physics Perturbations
    typeJournal Paper
    journal volume20
    journal issue10
    journal titleJournal of Climate
    identifier doi10.1175/JCLI4116.1
    journal fristpage2315
    journal lastpage2320
    treeJournal of Climate:;2007:;volume( 020 ):;issue: 010
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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