您的位置:  首页> 科学研究> 科研成果> 论文>

Regular Pulses Bursts Observation using a Time of Arrival Lightning Mapping System with Dual channels

刊物全称

Proceedings of the 2014 International Conference on Lightning Protection

论文作者

Wang Yanhui,Zhang Guangshu,Li Yajun,Zhang Tong,Wu Bin,Liu Yanxiu

发表年度

2014

刊物类别

会议论文

卷

32

期

560-563

通讯作者

Wang, YH

请求全文

wyh2005@lzb.ac.cn

关键词

Regular Pulses Bursts (RPBs), lightning dichargeange, M-process, dart-stepped leader

摘要

The waveforms of lightning discharges during a period of 15 minutes were checked. There are Regular Pulses Bursts (RPBs) in 83% lightning discharges. Statistical analysis of all the 693 RPBs in this period show that, typical width of pulses in RPBs is about 0.5-1 its, typical interval between pulses of RPBs is about 2-10 its and typical duration of RPBs is from 100 its to 5000 Its. There is always chaotic pulses period prior to or after RPBs. Most RPBs tend to occur in the middle and later stages of lightning discharges. In general, RPBs associates with K-change, M-process or dart-stepped leader.We developed a solution to match pulses caught in seven stations automatically just using intervals between pulses. Then we analyzed some parts of lightning discharge in high temporal resolution (up to one dot per 2lts or more). Four RPBs were mapped in three dimensional in a typical intracloud flash, and a dart-stepped leader was also mapped in negative c1oud-to-ground flash, and some special RPBs were researched in this work.

相关文章