董敏,李跃凤,沈文海. 1997. 东亚气候的模拟与验证研究[J]. 气象学报, 55(6):692-702, doi:10.11676/qxxb1997.067
东亚气候的模拟与验证研究
VALIDATION STUDY ON THE EAST ASIAN CLIMATE SIMULATED BY CCM2
投稿时间:1996-09-10  修订日期:1997-02-13
DOI:10.11676/qxxb1997.067
中文关键词:  东亚气候  模拟  验证
英文关键词:East Asia climate  Simulation  Validation
基金项目:国家“九五”重中之重项目
作者单位
董敏 国家气候中心, 北京, 100081 
李跃凤 国家气候中心, 北京, 100081 
沈文海 国家气候中心, 北京, 100081 
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中文摘要:
      运行NCAR公共气候模式(CCM2)20a对东亚气候进行了模拟研究,并对模拟结果进行了检验。检验结果表明,该模式能够较好地描述东亚地区的大尺度气候特征,模拟的高度场、风场、温度场等比较接近实际。对东亚季风气候具有决定性影响的系统,如副热带高压、蒙古高压、印度低压以及西风急流等也模拟得比较好。检验结果还表明,对湿度场的模拟不如高度,温度及风场的模拟,夏季西风急流的模拟不如冬季。CCM2对东亚降水的模拟效果较差。这表明CCM2在模式物理过程方面(如,对流参数化,垂直输送过程,陆面过程及地形等)需要进行较大的改进。
英文摘要:
      The NCAR community climate model was run for 20 years and the simulated East Asian clim ate was anal ysed and checked against the observation data.It is found that the large scale features of the East Asia climate were simulated pretty well by the model,though there are still some discrepancies between the model output and the observation.The simulated geopot ential height,wind and temperature field are very close to the observation.The large scale systems such as Subtro pical High,Mongolia High,Indian Low which have import antinfluence on the East Asia Monsoon are also simulated pretty well.It is also found that the moisture field is not simulated so well as those fields mentioned above.The sim ulated precipitation of the model have rather big difference with the observ ations.These suggestthat some physical processes in the CCM2 need to be improved.
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