首页 | 本学科首页   官方微博 | 高级检索  
     检索      

雷暴云电结构与闪电关系初探
引用本文:罗霞,陈渭民,李照荣,胡胜娟,李旭.雷暴云电结构与闪电关系初探[J].气象科学,2007,27(3):280-286.
作者姓名:罗霞  陈渭民  李照荣  胡胜娟  李旭
作者单位:1. 江苏省气象灾害重点实验室(南京信息工程大学),南京,210044
2. 甘肃省人工影响天气办公室,兰州,730020
3. 江苏省气象局,南京,210008
基金项目:国家自然科学基金;南京信息工程大学校科研和教改项目
摘    要:利用雷暴云偶极性电结构理论,结合卫星和雷达资料分析了不同荷电结构下地面电场。结果表明:当正电荷中心高度越高、负电荷中心高度越低,形成的地面负电场越大,越有利于地闪的形成;负地闪发生后或云砧下方,地面电场成正极性,易引发正地闪;地闪分布与雷达回波、卫星云图中雷暴云位置基本一致,结合雷达和卫星资料可初步判断正/负地闪发生位置。

关 键 词:雷暴云荷电结构  地面电场  雷达回波  卫星云图  地闪
收稿时间:2005-12-12
修稿时间:2006-06-18

ANALYSIS OF THE RELATIONSHIP BETWEEN CHARGE STRUCTURES AND LIGHTNING IN THUNDERSTORM
Luo Xi,Chen Weimin,Li Zhaorong,Hu Shengjuan and Li xu.ANALYSIS OF THE RELATIONSHIP BETWEEN CHARGE STRUCTURES AND LIGHTNING IN THUNDERSTORM[J].Scientia Meteorologica Sinica,2007,27(3):280-286.
Authors:Luo Xi  Chen Weimin  Li Zhaorong  Hu Shengjuan and Li xu
Institution:Jiangsu Key Laboratory of Meteorological Disaster,NUIST,Nanjing 210044;Jiangsu Key Laboratory of Meteorological Disaster,NUIST,Nanjing 210044;Gansu Weather Modification Of fice,Lanzhou 730020;Jiangsu Province Meteological Of fice,Nanjing 210008;Jiangsu Province Meteological Of fice,Nanjing 210008
Abstract:Based on the positive dipole structure of thunderstorm,combining with satellite data and radar data,this paper analyses the electric fields on the ground aroused by different electricity structures of thunderstorm.Results show that the higher center position of the positive charge and the lower ones of the negative charge will lead to stronger induced negative electric field,all of these will make the occurrence of cloud-to-ground lightning easier.When the cloud-to-ground lightning happens,the negative cloud-to-ground lightning takes place first and consumes some negative charges,then the positive ones will distribute in the plume,which will easily cause the occurrence of the positive cloud-to-ground lightning.Through analyzing radar data and satellite image the cloud-to-ground lightning location can be seen.
Keywords:Charge structure of thunderstorm Ground electric field Radar echo Satellite image Cloud-to-ground lightning
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《气象科学》浏览原始摘要信息
点击此处可从《气象科学》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号