Please wait a minute...
高级检索
高原气象  1993, Vol. 12 Issue (1): 67-76    
论文     
人工触发闪电放电电流的间接测量及其特征分析
周忠华, 刘欣生
中国科学院兰州高原大气物理研究所, 甘肃省兰州市 730000
INDIRECT MEASUREMENT OF ARTIFICIALLY TRIGGERED LIGHTNING DISCHARGE CURRENT AND ITS CHARACTERISTIC ANALYSIS
Zhou Zhonghua, Liu Xinsheng
Lanzhou Institute of Plateau Atmospheric Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000
 全文: PDF(668 KB)   HTML
摘要: 利用自制的磁场测量系统对人工触发闪电近距离的静磁场进行了测量,由此反演出的电流特征与同轴分流器的直接电流测量以及静电场、相对光强等的同步测量结果相符合。在此基础上,本文对永登地区人工触发闪电特征进行了分析讨论。永登人工触发闪电是在云下部正电荷作用下,上行先导的激发、传播及随后的连续电流放电过程。利用同步测量的近区电磁场资料和两站同步测量的静电场资料分别计算了先导速度(~105m/s)。整个放电过程持续时间为数十毫秒,中和电荷量为几库仑。
关键词: 触发闪电磁天线系统先导过程连续电流过程放电参数    
Abstract: Magnetostatic field at the close range of artificially triggered lightning was measured by a magnetic field antenna system.The characteristic of triggered lightning current deduced from the magnetic field antenna system is consistent with that of direct current measurement by coaxial shunt system,electric field charge measurement by slow antenna and relative luminosity measurement by photocell system.Triggered lightning for storms in Yongdeng,Gansu is initiated with the upward going negative leader,under the influence of the dominant lower positive charge of storm,which propagates upwards followed by continuous current process.The speed of leader propagation was calculated from synchronous measurements of close magnetic and electric field and also from synchronous measurements of electric field change at two stations,results being the order of 105m/s.The triggered lightning lasts a few tens of milliseconds with the neutralized change of a few coulombs.
Key words: Triggered lightning    Magnetic field antenna system    Leader process    Continuous current process    Discharge parameters
收稿日期: 1992-09-30 出版日期: 1993-03-24
基金资助: 国家自然科学基金资助项目(488024)
服务
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章  
周忠华
刘欣生

引用本文:

周忠华, 刘欣生. 人工触发闪电放电电流的间接测量及其特征分析[J]. 高原气象, 1993, 12(1): 67-76.

Zhou Zhonghua, Liu Xinsheng. INDIRECT MEASUREMENT OF ARTIFICIALLY TRIGGERED LIGHTNING DISCHARGE CURRENT AND ITS CHARACTERISTIC ANALYSIS. PLATEAU METEOROLOGY, 1993, 12(1): 67-76.

链接本文:

http://www.gyqx.ac.cn/CN/        http://www.gyqx.ac.cn/CN/Y1993/V12/I1/67

No related articles found!
img

QQ群聊

img

官方微信