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    The National Center for Atmospheric Research Community Climate Model: CCM3

    Source: Journal of Climate:;1998:;volume( 011 ):;issue: 006::page 1131
    Author:
    Kiehl, J. T.
    ,
    Hack, J. J.
    ,
    Bonan, G. B.
    ,
    Boville, B. A.
    ,
    Williamson, D. L.
    ,
    Rasch, P. J.
    DOI: 10.1175/1520-0442(1998)011<1131:TNCFAR>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: The latest version of the National Center for Atmospheric Research (NCAR) Community Climate Model (CCM3) is described. The changes in both physical and dynamical formulation from CCM2 to CCM3 are presented. The major differences in CCM3 compared to CCM2 include changes to the parameterization of cloud properties, clear sky longwave radiation, deep convection, boundary layer processes, and land surface processes. A brief description of each of these parameterization changes is provided. These modifications to model physics have led to dramatic improvements in the simulated climate of the CCM. In particular, the top of atmosphere cloud radiative forcing is now in good agreement with observations, the Northern Hemisphere winter dynamical simulation has significantly improved, biases in surface land temperatures and precipitation have been substantially reduced, and the implied ocean heat transport is in very good agreement with recent observational estimates. The improvement in implied ocean heat transport is among the more important attributes of the CCM3 since it is used as the atmospheric component of the NCAR Climate System Model. Future improvements to the CCM3 are also discussed.
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      The National Center for Atmospheric Research Community Climate Model: CCM3

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4189266
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    • Journal of Climate

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    contributor authorKiehl, J. T.
    contributor authorHack, J. J.
    contributor authorBonan, G. B.
    contributor authorBoville, B. A.
    contributor authorWilliamson, D. L.
    contributor authorRasch, P. J.
    date accessioned2017-06-09T15:39:13Z
    date available2017-06-09T15:39:13Z
    date copyright1998/06/01
    date issued1998
    identifier issn0894-8755
    identifier otherams-4978.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4189266
    description abstractThe latest version of the National Center for Atmospheric Research (NCAR) Community Climate Model (CCM3) is described. The changes in both physical and dynamical formulation from CCM2 to CCM3 are presented. The major differences in CCM3 compared to CCM2 include changes to the parameterization of cloud properties, clear sky longwave radiation, deep convection, boundary layer processes, and land surface processes. A brief description of each of these parameterization changes is provided. These modifications to model physics have led to dramatic improvements in the simulated climate of the CCM. In particular, the top of atmosphere cloud radiative forcing is now in good agreement with observations, the Northern Hemisphere winter dynamical simulation has significantly improved, biases in surface land temperatures and precipitation have been substantially reduced, and the implied ocean heat transport is in very good agreement with recent observational estimates. The improvement in implied ocean heat transport is among the more important attributes of the CCM3 since it is used as the atmospheric component of the NCAR Climate System Model. Future improvements to the CCM3 are also discussed.
    publisherAmerican Meteorological Society
    titleThe National Center for Atmospheric Research Community Climate Model: CCM3
    typeJournal Paper
    journal volume11
    journal issue6
    journal titleJournal of Climate
    identifier doi10.1175/1520-0442(1998)011<1131:TNCFAR>2.0.CO;2
    journal fristpage1131
    journal lastpage1149
    treeJournal of Climate:;1998:;volume( 011 ):;issue: 006
    contenttypeFulltext
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