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当前位置: 首页 > 文章 > 盘锦地区冰雹天气特征分析 现代农业科技 2015 (19) 254-256
Position: Home > Articles > Analysis of Characteristics of Hail Weather in Panjin Region Modern Agricultural Science and Technology 2015 (19) 254-256

盘锦地区冰雹天气特征分析

作  者：
迟春艳;袁潮;韩庆婷;陈红磊;张璐
单  位：
辽宁省盘锦市气象局
关键词：
冰雹;天气类型;物理量参数;阈值;辽宁盘锦
摘  要：
利用常规观测资料和NCEP再分析资料,对2000—2014年盘锦地区出现的12次冰雹过程进行了详细分析。结果表明:盘锦地区出现冰雹天气的月变化特征明显,主要集中在5—11月,其中10月最多。主要天气类型可以分为3类:冷涡型、低槽型及偏西气流型。从大尺度形势特征来看,盘锦地区冰雹日各层均有动力辐合系统,并且整层系统配置近似垂直或略前倾。冰雹天气的发生并不需要较强的湿度条件,地面风场、0℃层温度、-20℃层温度、850 h Pa与500 h Pa温差及TT指数等对冰雹天气发生有着较好的指示意义。
译  名：
Analysis of Characteristics of Hail Weather in Panjin Region
作  者：
CHI Chun-yan;YUAN Chao;HAN Qing-ting;CHEN Hong-lei;ZHANG Lu;Panjin Meteorological Bureau in Liaoning Province;
关键词：
hail;;weather conditions;;physical parameters;;threshold value;;Panjin Liaoning
摘  要：
Based on conventional meteorological observation and NCEP reanalysis data,this paper analyzed the 12 times hail weather process happened in Panjin during 2000 to 2014.The results were as follows :hail weather showed significant monthly variation,it concentrated in May to November,almost of which in October.Moreover,there were three main types of weather conditions occurred in hail :cold vortex,trough and westerly flow.According to the large-scale view of the weather situation,when the hail occurs,each layer had the dynamic coupling system,and the whole system was approximate vertical or leaned forward.The occurrence of hail weather didn ′ t need strong humidity conditions,Surface wind field,0 ℃ layer temperature,-20 ℃ temperature,850 h Pa and 500 h Pa temperature differences and TT index of hail weather had good instruction significance.

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