摘要
利用贵州省闪电定位系统资料,对2010~2013年发生在黔西南州的闪电从年变化、月变化和雷电流强度等多个角度进行综合分析,找出发生在黔西南州雷电的分布特征和活动规律。结果表明,2010~2013年黔西南州闪电以负闪为主,占总闪电数的96.2%,正闪电次数较少,占总闪电数的3.8%;近4年黔西南州雷电主要发生在4~10月,峰值较高为5—8月,11月一次年3月雷电发生很少;负闪电分布基本与总闪电一致;近4年黔西南州最大正闪电强度为249.90kA,最大负闪强度-249.95kA,平均正闪电强度54.21kA,平均负闪强度-34.82kA。强度在100kA以上的有3779次。
Using lightening location system in Guizhou Province, the annual variation, monthly variation and current intensity of lightening in Qianxinan Prefecture during 2010- 2013 were Comprehensively analyzed, the distribution features and activities law were obtained. The results showed that lightening in Qianxin.an Prefecture during 2010- 2013 were dominated by negative lightening, accounting for 96.2%, while positive lightening accounting for 3.8% ; lightening mainly occurred during Apr. -Oct., peak was higher from May to Aug. , and there was little lightening from Nov. to Mar. of the following year; the distribution of negative lighting was consistent with total lightening; the maximum positive and negative lightening intensity were 249.90, - 249.95 kA respectively, the average positive and negative lightening intensity were 54.21, - 34.82 kA respectively, the lightening intensity above 100 kA had 3 779 times.
出处
《安徽农业科学》
CAS
2016年第8期221-222,237,共3页
Journal of Anhui Agricultural Sciences
关键词
闪电
活动规律
分布特征
闪电强度
黔西南州
Lightening
Activity law
Distribution features
Lightening intensity
Qianxinan Prefecture