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中文摘要：
对2014年7月台风麦德姆（Matmo）影响青岛市并造成的一次暴雨发生过程的单站CORS观测数据处理以获取对流层延迟量,利用对流层延迟中的湿延迟量计算大气可降水量（PWV）,将其变化与实际降水的发生时间和降水量进行对比分析,得到了PWV变化与降水发生过程之间的关系,即在暴雨发生前3~6hPWV会有明显下降,进一步得出单站CORS获取的PWV值能够用于暴雨等强降水预报。
英文摘要：
Focusing on the torrential rain in Qingdao caused by Typhoon Matmo in July 2014,this paper processed the observation data of single station CORS to acquire troposphere delay and PWV（precipitable water vapor）was calculated by using the troposphere wet delay.Then the changes of PWV were compared with the time and amount of real precipitation and the relationship between changes of PWV and the process of precipitation.That is,PWV will decrease obviously in 3~6hours before the rainstorm.Thus,it is concluded that the PWV value obtained from the single station CORS can be used for the prediction of heavy precipitation such as torrential rain.
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