气象与环境学报Issue(1)：1-7,7.DOI:10.3969/j.issn.1673-503X.2014.01.001
河北一次层状云系降水的微物理机制数值模拟与分析
Numerical simulation on microphysical mechanism of stratiform cloud precipitation in Hebei province
摘要
Abstract
Microphysical structures and precipitation process of a stratiform cloud on May 1 ,2009 in middle-east of China were analyzed by a one-dimensional stratiform cloud model.The results indicate that this precipitation process is caused by stratiform cloud,and the vertical structure of stratiform cloud is consistent with Koo Chen-Chao′s three-layer cloud conceptual model and “seeder-feeder”cloud mechanism.In the first layer (upper layer from 4.7 km to 7.0 km),there are ice crystal particles and snowflake,and the latter is formed in the way of subli-mation and automatical conversion from ice crystal.In the second layer (middle layer from 2.6 km to 4.6 km), there are ice crystal particles,snowflake,graupel,supercooled water droplets and rain droplets,and they are influ-enced significantly by the Bergeron process.In the third layer (lower layer from 1.3 km to 2.5 km),there are mainly cloud droplets,rain droplets,the melting snow droplets and graupel droplets from upper layers.The graupel droplets contribute greatly to the formation of rain droplets.When the cloud system develops maturely,there is a certain“seeder-feeder”relationship among the different layers.For example,the first layer supplies snow and ice crystal parti-cles to the top of the second layer and the second layer sends graupel and snow particles to the top of the third layer.关键词
层状云/一维层状云模式/三层概念模型/微物理Key words
Stratiform cloud/One-dimensional stratiform model/Three-layer cloud conceptual model/Microphysi-cal mechanism分类
天文与地球科学引用本文复制引用
王秀娟,姜忠宝,杨洁帆,夏葳,张超..河北一次层状云系降水的微物理机制数值模拟与分析[J].气象与环境学报,2014,(1):1-7,7.基金项目
国家自然科学基金项目（41105095和41005073）和吉林省气象局科技经费支持项目“松辽流域降水预报技术开发和系统研制”（201304）共同资助。 （）
