摘要
以卫星云图为主,结合雷达回波和地面资料,分析了长江三峡和荆江地区50次灾害性暴雨发生前O—6小时暴雨云团发生、发展与大尺度环境云场的关系。按暴雨云团的不同触发条件,建立了冷锋型、静止锋型、冷锋北侧辐合型、中尺度“锢囚型”和与台风有关的弧状云型等5种云团概念模型.为暴雨临近预报提供依据。经1989年6—8月预报应用检验,取得较好效果。
By using mainly GMS pictures, together with radar echo and ground data, this paper analyzes the relation between the development of heavy rain cloud clusters in 0-6 hrs before 50 heavy rain occurrences in the regions of the Three-Gorges and Jingjiang River, and the large-scale environmental cloud field. Established according to different trigger mechanisms are five types of concept models, cold front, stationary front, convergence north of the front, mesoscale occlusion and arcus line related to typhoon, upon which criteria are provided for nowcasting heavy rain. Satisfactory effects have been achieved in the operational tests in the period of June-August, 1989.
出处
《南京气象学院学报》
CSCD
1990年第4期561-567,共7页
Journal of Nanjing Institute of Meteorology
