![]() ![]() Friedlingstein, et al., 2013: Carbonconcentration and carbon-climate feedbacks in CMIP5 earth system models. Boer, 2005: A parameterization of leaf phenology for the terrestrial ecosystem component of climate models. Hargreaves, 2011: Understanding the CMIP3 multimodel ensemble. Preliminary analyses indicate that the higher resolution in BCC_CSM1.1(m) improves the simulation of mean climate relative to BCC_CSM1.1, particularly on regional scales.Īnnan, J. Both BCC_CSM1.1 and BCC_CSM1.1(m) perform well when compared with other CMIP5 models. Simulations of climate during the last millennium and projections of climate change during the next century are also presented and discussed. Simulations of the 20th century climate using BCC_CSM1.1 and BCC_CSM1.1(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. These simulations are available for use by both national and international communities for investigating global climate change and for future climate projections. ![]() ![]() 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 (IPCC) Fifth Assessment Report (AR5). Both models well simulate the concentration and temporal evolution of atmospheric CO 2 during the 20th century with anthropogenic CO 2 emissions prescribed. Both versions are fully coupled climate-carbon cycle models that simulate the global terrestrial and oceanic carbon cycles and include dynamic vegetation. Two recent versions are described: BCC_CSM1.1 with coarse resolution (approximately 2.8125°×2.8125°) and BCC_CSM1.1(m) with moderate resolution (approximately 1.125°×1.125°). 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). ![]()
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