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投稿时间：2006-07-17 修订日期：2007-03-01
投稿时间：2006-07-17 修订日期：2007-03-01
中文摘要: 运用FY-2C卫星资料和由NCEP/NCAR再分析资料计算的多种物理量场，初步分析了2
005年8月16日天津大暴雨的成因：此次大暴雨发生在低槽冷锋前部，对流层中层低槽和副热带
高压的维持、对流层低层切变线的出现、近地面层冷空气的扩散侵入、对流层中低层强盛的
不稳定能量以及充沛而又深厚的水汽等天气条件的有效合理配置，造就了这次历史罕见的大
暴雨。降水显著的中尺度特性与中尺度云团相对应。同时，对比分析了15日发生在河北东北
部、京津地区的另一个降水较弱、对流天气强的对流云团，结果显示它们形成发展中存在
差异，为今后两类天气的预报提供了一些线索。
中文关键词: 暴雨 红外辐射亮温（TBB） 云区湿度 物理量场
Abstract:Based on FY-2C meteorological satellite data and several physics field
s calculated by NCEP/NCAR reanalysis data, the causation of the heavy rainfall event on
August 16, 2005 in Tianjin is analyzed. This event occurred in a cold front with
trough. And the infrequent rainfall was produced by the reasonable allocation o
f the trough and the subtropical high in the middle troposphere, the shear line
in the low troposphere, the incursion of the cold air in the surface, the strong
instability energy in the lower / middle troposphere and the sufficient water v
apor. The mesoscale characteristics of the event are associated with the mesosca
le convective cloud clusters. At the same time, another convective cloud cluster
s with weak precipitation but strong convection in the north eastern Heb
ei Province, Beijing and Tianjin on the 15th are compared and analyzed. There
are some differences between them in environmental conditions of their formation a
nd development. It could provide some forecasting information for two kinds of weat
her in the future.
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引用文本：
李云,缪启龙,江吉喜,2007.2005年8月16日天津大暴雨成因分析[J].气象,33(5):83-88.
Li Yun,Miao Qilong,Jiang Jixi,2007.Analysis of “2005.8.16” Heavy Rain in Tianjin[J].Meteor Mon,33(5):83-88.
李云,缪启龙,江吉喜,2007.2005年8月16日天津大暴雨成因分析[J].气象,33(5):83-88.
Li Yun,Miao Qilong,Jiang Jixi,2007.Analysis of “2005.8.16” Heavy Rain in Tianjin[J].Meteor Mon,33(5):83-88.