新型闪电电场变化测量仪的研究与初步应用  

OPTIMIZATION AND APPLICATION OF NEW LIGHTNING ELECTRIC FIELD CHANGE MEASUREMENT SYSTEM

作　　者：徐黄飞 张其林[2] 杜赛 薛奇 XU Huangfei;ZHANG Qilin;DU Sai;XUE Qi(Guangdong Meteorological Observation Data Center,Guangzhou 510080,China;Nanjing University of Information Science and Technology,Nanjing 210044,China;Guangzhou Institute of Tropical and Marine Meteorology,CMA,Guangzhou 510641,China;Nanjing Daqiao Machine Co.,Ltd.,Nanjing 211101,China)

机构地区：[1]广东省气象探测数据中心,广东广州510080 [2]南京信息工程大学,江苏南京210044 [3]中国气象局广州热带海洋气象研究所,广东广州510641 [4]南京大桥机械有限公司,江苏南京211101

出　　处：《热带气象学报》2021年第3期502-511,共10页Journal of Tropical Meteorology

基　　金：广东省气象局科学技术研究项目(GRMC2019M09)资助。

摘　　要：闪电电场变化测量系统是目前用于闪电物理研究以及闪电定位的重要手段之一,提高测量系统的探测性能,对于推动闪电物理以及闪电定位的研究具有重要作用。根据电磁感应原理,研制出探测带宽为10 Hz~5 MHz的新型闪电电场变化测量仪。并进行了实验,标定了测量仪输出信号与电场变化信号在频域上的数值关系。利用三套测量仪系统对南京多个强雷暴过程展开同步探测,利用获取的数据反演了负地闪电场波形。对探测到的58次负地闪波形特征进行统计,与国内外统计结果进行对比分析,发现各个地区的负地闪预击穿过程和首次回击电场波形特征存在较大差异。The lightning electric field change measurement system is currently one of the important means for lightning physics research and lightning location;improving the detection performance of measurement systems is of great significance for lightning physics research and lightning location.Based on the principle of electromagnetic induction,a new lightning electric field change measurement system with a detection bandwidth of 10 Hz~5 MHz is developed.Experiments are carried out to calibrate the numerical relationship between the output signal and the electric filed change signal in the frequency domain.Three sets of measuring systems are used to carry out synchronous detection of multiple strong thunderstorms in Nanjing,and the waveform of negative cloud-to-ground(CG)lightning filed is inversed by using the data obtained.The waveform characteristics of 58 cases of negative CG lightning are analyzed.It is found that the pre-breakdown process of the negative CG lightning and the waveforms of the first return stroke electric field in different regions are quite different.

关 键 词：闪电电场测量仪 负地闪 统计分析 

分 类 号：P427.3[天文地球—大气科学及气象学]