气象学报Issue(4)：766-777,12.DOI:10.11676/qxxb2015.042
中国东部云-降水对应关系的分析与模式评估
Analysis and model evaluation of the relationship between clouds and ;precipitation over eastern China
摘要
Abstract
To evaluate and improve the correlation between the clouds and the precipitation in the models,the relationships of the horizontal distribution and seasonal variation between the various cloud types and the precipitation over eastern China are analyzed,and the model results simulated by T42 and T106 version of BCC AGCM are evaluated respectively by using the ISC-CP cloud data and the merged precipitation data from January 1998 to December 2007.It is found that over eastern China,the winter precipitation demonstrates stratiform features,the cloud belt and rain belt stably maintain near 27°N,and the precipitati-on is mainly resulted from Nimbostratus and Altostratus.On the other hand,the summer precipitation has both convective and stratiform characteristics.The summer convective cloud belt and rain belt move with the summer monsoon consistently.The convective precipitation is mainly resulted from deep convective clouds and Cirrostratus,with their maximum centers matching well with the precipitation regions,but Cirrostratus occurs in the north side of the main body of the deep convection and precip-itation.The summer stratiform precipitation is mainly resulted from Altostratus and Stratocumulus.The model simulations show that BCC AGCM has good skills on the cloud climate modeling.It can reproduce the correct location and stability of the winter stratiform clouds and precipitation,and also can reproduce the consistent evolution of the summer rain belt with deep convective cloud belts.Compared with the T42 model version,the summer precipitation and deep convective clouds,as well as their relationship simulated by T106 model are well improved.However,the winter stratiform clouds,precipitation and their relationship are worse.关键词
云/降水/对应关系/模式评估Key words
Clouds/Precipitation/Relationship/Model evaluation分类
天文与地球科学引用本文复制引用
李昀英,寇雄伟,方乐锌,孙国荣..中国东部云-降水对应关系的分析与模式评估[J].气象学报,2015,(4):766-777,12.基金项目
财政部／科技部公益类气象行业专项（201306068）、国家自然科学基金（41475069）、国家留学基金。 （）
