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气象:2009,35(2):64-70
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2006年5—9月雷暴天气及各种物理量指数的统计分析
(国家气象中心, 北京 100081)
Statistical Analysis of the Thunderstorm and Convective Parameters from May to September in 2006
(National Meteorological Center, Beijing 100081)
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投稿时间:2008-07-03    修订日期:2008-12-30
中文摘要: 对2006年5—9月全国雷暴天气时空特征进行了统计分析,结果表明:雷暴天气的发生具有明 显的短时局地特征,大多数发生在17—20时,上午11时发生最少。全国范围发生过雷暴天 气的站点不到总数的三分之一。从空间分布来看,广东、广西及云南三省(区)是雷暴发生最 为频繁的省份,内蒙古中西部、新疆北部、青海北部等地则发生较少。此外,统计分析各物 理量指数后发现,各种物理量指数对于雷暴等强对流天气发生呈现出不同的概率分布特征, 其中最主要的特征是当雷暴等强对流性天气发生时,存在3个高概率区域,每个区域对应物 理量指数值相对集中在一个特定范围内。
中文关键词: 雷暴  对流指数  时空特征
Abstract:Statistical analysis about the characteristics of the temporal and spa tial distribution of the thunderstorm from May to September in 2006 is conducted . The results are as follows: (1)The occurrence of the thunderstorm is short ra nge and lo cal. Most of them happen at 17 p.m. and 20 p.m. in the evening, while only a few at 11 a.m.; (2)The stations that once the thunderstorm happened are less then 1 /3 of all the stations. From the spatial distribution of the thunderstorm, the are a with hig h frequency of the thunderstorm focus on Guangdong, Guangxi and Yunnan province, while in the west of Inner Mongloia, northern part of Xinjiang and Qinhai etc . are the area with less thund erstorm; (3)The distribution of the convective parameters present di fferent characteristics. The most important point is that, when the thunderstorm happens, there are three high frequency areas and the corresponding convective parameters centralize in a certain range.
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李勇,孔期,2009.2006年5—9月雷暴天气及各种物理量指数的统计分析[J].气象,35(2):64-70.
Li Yong,Kong Qi,2009.Statistical Analysis of the Thunderstorm and Convective Parameters from May to September in 2006 [J].Meteor Mon,35(2):64-70.