干旱区生态环境知识资源中心(Arid): 我国地闪活动和降水关系的区域差异

Arid

	我国地闪活动和降水关系的区域差异
其他题名	REGIONAL DIFFERENCES OF RELATIONSHIP BETWEEN CLOUD-TOGROUND LIGHTNING AND PRECIPITATION IN CHINA
	郑栋; 但建茹; 张义军; 吴超; 曾昌军
来源期刊	热带气象学报
ISSN	1004-4965
出版年	2012
卷号	28 期号:4 页码:569-576
中文摘要	利用我国部分地区2005年的地闪定位资料和气象台站雨量观测资料,由南向北选取我国四个不同气候带区域(区域1~4),分析了这些区域的地闪活动与降水的相关关系。结果表明,由南向北及气候特征由潮湿趋于干旱的区域的地闪活动和降水相关性增强。闪电活动与有闪电降水(即对应闪电的降水)日变化的线性相关系数在由南向北的区域分别为0.56、0.46、0.56、0.80,旬变化的线性相关系数分别为0.73、0.86、0.89、0.92,月变化的线性相关系数分别为0.74、0.88、0.965、0.99;较干旱的区域3和区域4的地闪活动与所有降水的时间序列有较强的相关性,其线性相关系数日变化分别为0.31、0.41,旬变化分别为0.84,0.52,月变化分别为0.93、0.80;地闪与降水的空间线性关系相对复杂,但也表现出由南向北和气候趋于干旱对应关系增强的特征,区域4的闪电和降水相关性达到0.54。分析区域中较干旱地区的雷暴活动产生机制(主要受热力抬升作用)相比潮湿地区(既受热力抬升作用,又受大尺度系统相互作用)更为单一,这可能是干旱地区的闪电活动与降水有较好相关的重要原因。
英文摘要	Cloud-to-ground(CG) lightning data observed by ADTD lightning location network and precipitation data observed by meteorological observation stations located in four regions of different climatic belts of China are used to analyze the relationship between CG lightning and rainfall.It was found that the linear correlation between CG lightning and rainfall increases with the latitude changing from low to high and the climate changing from humid to arid.The linear correlation coefficients between the CG lightning frequencies and the precipitation related to lightning activity in the four regions changing from low to high latitudes are 0.56,0.46,0.56 and 0.80 for daily variation,0.73,0.86,0.89 and 0.92 for ten-day variation,and 0.74,0.88,0.965 and 0.99 for monthly variation,respectively.The CG lightning and all the precipitation in region 3 and region 4-more arid than the other two regions-also have good relationships.The linear correlation coefficients between them in region 3 and region 4 are 0.31 and 0.41 for daily variation,0.84 and 0.52 for ten-day variation and 0.93 and 0.80 for monthly variation,respectively.The spatial relationships between CG lightning and precipitation,although being complicated,also strengthen with the changes of the latitude from low to high and the climate from humid to arid,with the related coefficient in region 4 being 0.54.Compared to the lightning-producing mechanism in humid areas(resulting from both thermodynamic uplifting and large-scale interactions),that of arid areas(resulting from thermodynamic uplifting) is more unique,which is much attributed to better correlations between lightning and precipitation in arid areas.
中文关键词	大气物理与大气环境 ; 统计特征 ; 相关分析 ; 地闪活动 ; 降水
英文关键词	atmospheric physics and atmospheric environment statistical characterization correlation analysis cloud-to-ground lightning precipitation
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:4634812
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/228381
作者单位	郑栋, 中国气象科学研究院/雷电物理和防护工程实验室, 北京 100081, 中国.; 但建茹, 从化市气象局, 广州, 广东 510925, 中国.; 吴超, 从化市气象局, 广州, 广东 510925, 中国.; 曾昌军, 从化市气象局, 广州, 广东 510925, 中国.; 张义军, 中国气象科学研究院/雷电物理和防护工程实验室, 灾害天气国家重点实验室, 北京 100081, 中国.
推荐引用方式 GB/T 7714	郑栋,但建茹,张义军,等. 我国地闪活动和降水关系的区域差异[J],2012,28(4):569-576.
APA	郑栋,但建茹,张义军,吴超,&曾昌军.(2012).我国地闪活动和降水关系的区域差异.热带气象学报,28(4),569-576.
MLA	郑栋,et al."我国地闪活动和降水关系的区域差异".热带气象学报 28.4(2012):569-576.