江西省春季GPS/PWV变化及其在人工增雨作业中的演变特征  

Variations of GPS/PWV in Jiangxi Province in Spring and Its Evolution during Weather Modification Work

作　　者：郭艳君[1] 张志红[1] 饶志娟 

机构地区：[1]江西省人工影响天气领导小组办公室,江西南昌330096 [2]江西省气象学会秘书处,江西南昌330096

出　　处：《气象与减灾研究》2016年第2期131-138,共8页Meteorology and Disaster Reduction Research

基　　金：公益性行业(气象)科研专项(编号:GYHY201406032)

摘　　要：利用2011—2012年3—5月江西省53个地基GPS观测站数据反演了大气可降水量,探讨了GPS/PWV的精度,分析了江西省春季大气可降水量的时空分布特征及其在人工增雨作业中的演变等。结果表明:江西省整个春季的水汽主要呈南多北少、西高东低分布,各站的GPS/PWV时间分布变化总体趋势较一致,日变化特征均呈先上升后下降趋势。在实际的人工增雨作业中,火箭催化作业前,GPS/PWV呈明显的上升趋势,作业后GPS/PWV快速减小,降水随之出现。Based on the spring observed data from 53 ground-based GPS observation stations between 2011 and 2012,the accuracy of GPS / PWV,the temporal and spatial distributions of spring atmospheric precipitable water vapor and its evolution in weather modification operation are discussed. Results show that the spring water vapor is more in south and east parts than that in north and west parts of Jiangxi province. The overall trend of the GPS/PWV in all the stations is consistent. The daily variation shows a rise first followed by a decline. During the weather modification operations,GPS/PWV shows an obvious rising trend and then rapidly decreases. After that,the precipitation appears.

关 键 词：GPS/PWV 人影作业 比湿平流 辐合 

分 类 号：P429[天文地球—大气科学及气象学]