摘要
文章运用数理统计和地理信息处理方法对重庆市地闪的空间密度分布与海拔之间的关系进行了研究,对重庆市地闪密度的差异及形成原因进行了探讨。研究表明:重庆市强闪电与特强闪电的密度高值区域主要分布于渝西、长江河谷地带且与山脉分布走向高度吻合,任意海拔下正地闪平均强度均明显大于负地闪;对各海拔与正、负闪平均强度进行相关性分析,结果表明正、负地闪的平均强度与海拔之间无明显线性关系。
By using the methods of mathematical statistics and geographic information processing, this paper studies the spatial density distribution of cloud-to-ground lightning in Chongqing and its relationship with altitude, and discusses the differences and causes of cloud-to-ground lightning density in Chongqing.The research shows that the areas with high density of strong lightning and extremely strong lightning in Chongqing are mainly distributed in the western Chongqing and the Yangtze River valley, which are consistent with the distribution trend of mountains.The average intensity of positive lightning is significantly higher than that of negative lightning at any altitude.The correlation analysis of each altitude with the average intensity of positive and negative lightning flashes shows that there is no obvious linear relationship between the average intensity of positive and negative lightning flashes and the altitude.
作者
李卫平
赵生昊
易小萍
廖路
Li Weiping;Zhao Shenghao;Yi Xiaoping;Liao Lu(Chongqing Lightning Protection Center,Chongqing 401147;Chongqing Meteorology Safety Technology Center,Chongqing 401147)
出处
《气象水文海洋仪器》
2022年第4期88-90,93,共4页
Meteorological,Hydrological and Marine Instruments
基金
重庆市气象部门业务技术攻关项目“重庆混合基线闪电定位资料的应用”(YWJSGG-202147)资助。
关键词
雷电灾害
地闪
空间分布
闪电定位
lightning disaster
cloud-to-ground flashes
spatial distribution
lightning location
