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An Overview of BCC Climate System Model Development and Application for Climate Change Studies

Journal of Meteorological Research 2014年第1期28卷 34-56页

作者：吴统文宋连春李伟平王在志张华辛晓歌张艳武张莉李江龙吴方华刘一鸣张芳史学丽储敏张洁房永杰汪方路屹雄刘向文魏敏刘茜霞周文艳董敏赵其庚季劲钧 Laurent LI 周明煜 National Climate Center China Meteorological Administration(CMA) National Meteorological Information Center CMA Laboratoire de Meteorologie Dynamique National Marine Environmental Forecasting Center

This paper reviews recent progress in the development of the Beijing Climate Center Climate System Model （BCC_CSM） and its four component models （atmosphere, land surface, ocean, and sea ice）. Two recent versions are described： BCC_CSMI.1 with coarse resolution （approximately 2.8125°× 2.8125°） and BCC_CSMI.I（m） with moderate resolution （approximately 1.125°×1.125°）. Both versions are fully cou- pled climate-carbon cycle models that simulate the global terrestrial and oceanic carbon cycles and include dynamic vegetation. Both models well simulate the concentration and temporal evolution of atmospheric CO2 during the 20th century with anthropogenic CO2 emissions prescribed. Simulations using these two versions of the BCC_CSM model have been contributed to the Coupled Model Intercomparison Project phase five （CMIP5） in support of the Intergovernmental Panel on Climate Change （1PCC） Fifth Assessment Report （AR5）. These simulations are available for use by both national and international communities for investigating global climate change and for future climate projections. Simulations of the 20th century climate using BCC-CSMI.1 and BCC_CSMI.I（m） are presented and validated, with particular focus on the spatial pattern and seasonal evolution of precipitation and surface air temperature on global and continental scales. Simulations of climate during the last millennium and projections of climate change during the next century are also presented and discussed. Both BCC_CSMI.1 and BCC_CSMI.I（m） perform well when compared with other CMIP5 models. Preliminary analyses in- dicate that the higher resolution in BCC CSMI.I（m） improves the simulation of mean climate relative to BCC_CSMI.1, particularly on regional scales.

关键词： Beijing Climate Center Climate System Model (BCC_ CSM) atmospheric general circulationmodel land surface model oceanic general circulation model sea ice model

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