摘要
介绍了利用火箭拖带细金属导线进行人工引发雷电的专门技术 ,并具体针对 1998和 1999年夏季在广东从化地区进行的人工引发雷电实验情况进行了详细介绍 ,包括场地布局、所采用的技术手段及部分结果 .电流、电场变化的同步测量以及光学观测揭示出人工引发雷电中存在有 3种先导过程 ,放电特征与自然闪电有极大的相似性 .利用人工引发雷电技术 ,不但有助于揭示雷电放电的机理和特征 ,而且在雷电防护设备的检验和国防建设中也可发挥重要作用 .
This paper presents the artificially triggered lightning technique by using a small rocket trailing steel wire. The field experiment arrangement, measuring technique and main results obtained during the artificially triggered lightning experiment in 1998-1999 are described in detail. The simultaneously measurement ofvariation of current and electric field and magnetic field, and optical observation show that there are three leader processes in altitude triggered lightning discharges, and the characteristics of artificially triggered lightning discharge are similar with that of natural lightning discharge. This technique is very helpful for understanding the mechanism and characteristics of lightning discharge. Meanwhile it is an efficient way for valuating the lightning protection device.
出处
《河北大学学报（自然科学版）》
CAS
2001年第3期228-234,共7页
Journal of Hebei University(Natural Science Edition)
基金
中国科学院知识创新工程重要方向项目 (KZCX2 - 2 0 1)
国家自然科学基金项目 (49975 0 0 3)
关键词
人工引发雷电
放电电流
电场变化
artificially triggered lightning
electric field variation
electric current
