Comparative Analysis of Detected Cloud-to-ground Lightning Data by Two Lightning Positioning Systems in Shanxi Province

doi:10.11755/j.issn.1006-7639(2020)-02-0346

Journal of Arid Meteorology ›› 2020, Vol. 38 ›› Issue (2): 346-352.DOI: 10.11755/j.issn.1006-7639(2020)-02-0346

Comparative Analysis of Detected Cloud-to-ground Lightning Data by Two Lightning Positioning Systems in Shanxi Province

ZHANG Huaming¹, QIAN Yong², LIU Hengyi³,TIAN Ruiming¹, LI Qiang¹, HU Junqing¹

1. Meteorological Disaster Prevention Technology Center of Shanxi Province, Taiyuan 030002, China;
2. Meteorological Disaster Prevention Technology Center of Xinjiang, Urumqi 830001, China;
3. State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081, China

Online:2020-04-28 Published:2020-04-28

山西省两套闪电定位系统地闪监测结果对比

张华明¹，钱勇²，刘恒毅³，田瑞敏¹，李强¹，胡俊青¹

1.山西省气象灾害防御技术中心，山西太原 030002；
2.新疆气象灾害防御技术中心，新疆乌鲁木齐 830001；
3.中国气象科学研究院灾害天气国家重点实验室，北京 100081

作者简介:张华明（1980— ），男，硕士，正研级高级工程师，主要从事气象灾害防御研究. E-mail: zhanghuaming980@163.com。
基金资助:
山西省气象局重点项目（SXKZDDW20205204）资助

Abstract

Abstract: Based on cloud to ground (CG) lightning data from ADTD and VLF-3D lightning positioning system and lightning disaster records in Shanxi Province in 2017, the temporal and spatial distribution and current intensity of CG lightning detected by two systems were comparatively analyzed. The results show that the detection efficiency of three-dimensional system to CG lightning was higher than that of ADTD system, and the number of detected lightning by three-dimensional system was twice as large as that of ADTD system. The positioning accuracy of three-dimensional system to lightning disasters was higher than that of ADTD system. The daily (except for the positive lightning) and monthly variation characteristics of monitored CG lightning by three-dimensional system and occurrence time of peak values were basically consistent with ADTD system. Compared with ADTD system, the high-value region of lightning density with 3.0 fl·km-2·a-1 and above from three-dimensional positioning system increased significantly, while the minimum values below 0.3 fl·km-2·a-1 reduced greatly.

Key words: lightning positioning system, CG lightning, temporal and spatial distribution, current intensity

摘要： 利用山西省ADTD与VLF三维闪电定位系统2017年探测的地闪资料和雷灾记录，对地闪的时空分布特征及电流强度进行对比分析。结果表明：三维定位系统对山西地闪的探测效率高于ADTD系统，探测的闪电数是ADTD系统的2倍，且对雷电灾害的定位精度高于ADTD系统；两套系统地闪的日变化（正地闪除外）、月分布特征及峰值时间基本一致；三维系统的闪电密度3.0 fl·km-2·a-1以上高值区域较ADTD系统显著增加，0.3 fl·km-2·a-1以下极小值范围大幅度减少。

关键词: 闪电定位系统, 地闪, 时空分布, 电流强度

CLC Number:

P427.32

ZHANG Huaming, QIAN Yong, LIU Hengyi, TIAN Ruiming, LI Qiang, HU Junqing. Comparative Analysis of Detected Cloud-to-ground Lightning Data by Two Lightning Positioning Systems in Shanxi Province[J]. Journal of Arid Meteorology, 2020, 38(2): 346-352.

张华明, 钱勇, 刘恒毅, 田瑞敏, 李强, 胡俊青. 山西省两套闪电定位系统地闪监测结果对比[J]. 干旱气象, 2020, 38(2): 346-352.

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Comparative Analysis of Detected Cloud-to-ground Lightning Data by Two Lightning Positioning Systems in Shanxi Province

山西省两套闪电定位系统地闪监测结果对比

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