摘要
利用2000—2007年共计8年的雷电灾害资料,对陕西省雷电灾害的时空分布特征及成因进行了分析。结果表明:陕西省雷电灾害的空间分布基本呈"枣核形",中间关中地区雷电灾害多、而北部和南部大部地区雷电灾害较少,与多年平均的自然雷电空间分布特征有一定的差别;陕西省雷电灾害季节性变化明显,一年四季均有发生,但主要集中分布在4—8月,其中8月最严重;雷电灾害日变化是午后至傍晚最多,早上相对较少,这与自然雷电发生的日变化特征比较接近。同时,分析了一次典型的雷灾个例,并有针对性地提出了若干防雷减灾措施。
the data o f thunder and lighting disasters in Shanxi province from 2000 to 2007 , the spatio-temporal distribution characteristics and causes of the lightning disaster are analyzed .According to the data in 8 years, the lightning disasters occur more in the middle of the province and the less in northern and southern area. But it is different from the annual average spatial distribution of the natural lightning in the past 37 years. The seasonal variation of the lightning disasters in Shanxi province, shows the lightning disaster are concentrated from April to August, especially in the August. The thunder and lightning disasters occur frequently from afternoon to evening and less in morning relatively, which is close to the characteristics of natural lightning characteristics counted by 8 more years＇ data. In this article, based on analysis of a typical lightning disaster case, some measures are pertinently supplied for reducing the disaster.
出处
《暴雨灾害》
2009年第1期88-91,共4页
Torrential Rain and Disasters
关键词
陕西
雷电灾害
时空分布
Shanxi
Lightning
Spatio-temporal distribution
