With intensive detecting data, the observational characteristics of mesoscale weather system triggering heavy rainfall over the middle valleys of Changjiang River is analyzed.
利用多种加密观测资料，详细分析了长江中游一次暴雨中尺度天气系统的观测特征。
Using the analyses of weather process of an heavy rainfall system, it is found that there is a mesoscale disturbance in the lower troposphere over Yangzi-Hwai valley.
通过一次江淮流域暴雨天气过程的分析，发现在对流层低层存在一种中间尺度扰动。
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