|
|||||
|
|
| 一次连接过程另辟新径的触发闪电特征分析 | |
| 引用本文： | 陈绍东,杨少杰,张义军,董万胜,李俊,郑栋,但建茹. 一次连接过程另辟新径的触发闪电特征分析[J]. 高电压技术, 2009, 0(6): 1356-1361 |
| 作者姓名： | 陈绍东 杨少杰 张义军 董万胜 李俊 郑栋 但建茹 |
| 作者单位： | 1. 南京信息工程大学,南京,210044;中国气象科学研究院,北京,100081 2. 广州市气象局,广州,510080 3. 中国气象科学研究院,北京,100081 |
| 基金项目： | 公益性行业科研专项(GYHY2007622);;国家自然科学基金(40875003)~~ |
| 摘 要： | 利用0.1μs时间分辨率的快天线电场变化仪、5000帖/s的高速摄像机等仪器设备所观测的资料,对发生在从化夏季人工引雷试验中一次连接过程另辟新径的触发闪电个例进行了分析。结果表明:下行直窜先导和上行连接先导在另辟新径的拐点处连接并产生回击,连接点位于风杆的斜上方8m处,上、下先导连接的速度估算约为40和780km/s,闪电F120605连接过程另辟新径产生的原因与原电离通道倾斜、风杆较高及回击电流强度较大有直接关系。连接后出现间隔约1ms的双回击电场,认为是由同一闪电间隔较短的两组先导-回击序列所产生,它的产生与连接过程另辟新径有很大的关系。 |
| 关 键 词： | 先导 M分量 连接过程 回击 新径 双回击电场 |
Characteristics of an Artificially Triggered Lightning Discharges with New Path to Ground of the Attachment Process |
|
| CHEN Shao-dong , YANG Shao-jie , ZHANG Yi-jun , DONG Wan-sheng , LI Jun , ZHENG Dong , DAN Jian-ru. Characteristics of an Artificially Triggered Lightning Discharges with New Path to Ground of the Attachment Process[J]. High Voltage Engineering, 2009, 0(6): 1356-1361 | |
| Authors: | CHEN Shao-dong YANG Shao-jie ZHANG Yi-jun DONG Wan-sheng LI Jun ZHENG Dong DAN Jian-ru |
| Affiliation: | 1.Nanjing University of Information Science and Technology;Nanjing 210044;China;2.Chinese Academy of Meteorological Sciences;Beijing 100081;3.Guangzhou Municipal Bureau of Meteorology;Guangzhou 510080;China |
| Abstract: | In order to search the characteristics of new path to ground of attachment process,one artificially triggered lightning was analyzed using the data obtained by fast antenna with 0.1 s time resolution and high-speed camera with 5000 piece/s resolution in autumn experiments in CongHua area.By studying the attachment of the process,we can conclude that the return stroke begins at the attachment point 8 m ramp top position of the wind pole which is the inflexion of the new trail between the down-ward dark leade... |
| Keywords: | leader M component attachment process return stroke new path to ground two return-stroke waveforms |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |