长江中游暴雨云团成因分类和暴雨预报

CLASSIFICATION OF THUNDERSTORM CLOUD CLUSTER FORMATIONS AND HEAVY RAIN FORECASTING IN THE MIDDLE REACHES OF THE CHANGJIANG RIVER

摘要:

本文选择了1980年以来长江中游地区22次暴雨和强对流天气过程的云图照片进行云团生成和云系演变过程的特征分析,概括出3类暴雨云团,发现影响AB区的暴雨云团大多数来自该区西南部偏南气流中的积云发展区,并初步建立了AB区暴雨监测预报程序。

Abstract:

In this paper, by using satellite cloud pictures for 22 episodes of heavy rain and severe convective weather over the middle reaches of the Changjiang River since 1980, the formation of clond clusters and evolution of cloud systems are analyzed, and three types of heavy rain cloud clusters summarized. It is found that most of the cloud clusters affecting the AB area originate from the cumulus clouds in the southerly flow in the southwest of the area. Accordingly, a useful procedure for monitoring and forecasting, the heavy rain in the area is preliminarily established.