广西气象灾害预警信号时空分布特征  

Spatial and temporal distribution characteristics of meteorological disaster warning signals in Guangxi

作　　者：孙崇智 李有华 王振国 Sun Chongzhi;Li Youhua;Wang Zhenguo(Guangxi Meteorological Service Center,Nanning 530022,China;Guangxi Meteorological Information Center,Nanning 530022,China;Guangxi Meteorological Disaster Prevention Technology Center,Nanning 530022,China)

机构地区：[1]广西壮族自治区气象服务中心,南宁530022 [2]广西壮族自治区气象信息中心,南宁530022 [3]广西壮族自治区气象灾害防御技术中心,南宁530022

出　　处：《气象研究与应用》2022年第2期87-92,共6页Journal of Meteorological Research and Application

基　　金：广西壮族自治区气象局软科学项目“全媒体时代下的公众气象服务产品研究”(2022第M04号)。

摘　　要：基于广西突发事件预警信息系统发布的2016—2020年气象灾害预警信号等资料,运用分类统计方法,对预警信号发布时间、类别、等级、发布区域进行统计分析,研究广西气象灾害预警信号的时空分布特征。结果表明,雷电、暴雨、大风、高温、大雾是广西主要的灾害性天气预警信号,多集中于黄色和橙色预警等级,红色预警信号发布最多的暴雨灾害,占所发红色预警信号的97%;预警落区主要分布在桂东北、桂西北,预警发生时间主要集中在夏季6—8月。Based on the me teorological disaster early warning signals from 2016 to 2020 released by the Guangxi emergency early warning information system,the statistical analysis of the release time,category,grade and release area of the early warning signals was carried out by using the classified statistical method.The spatial and temporal distribution characteristics and release principles of meteorological disaster early warning signals in Guangxi was studied.The results show that lightning,rainstorm,gale,high temperature and heavy fog are the main warning signals of severe weather in Guangxi,mostly concentrated in the yellow and orange warning levels.Among the red warning signals,rainstorm disasters signals are the most,accounting for 97%.The early warning areas are mainly distributed in the northeast and northwest Guangxi,and the warning occurrence time is mainly concentrated in summer from June to August.

关 键 词：预警信号 气象灾害 信息发布原则 

分 类 号：P429[天文地球—大气科学及气象学]