A New Method for Modeling and Parameter Identification of Positively Charged Downward Lightning Leader Based on Remote Lightning Electric Field Signatures Recorded in the ELF/MF Range and 3D Doppler Radar Scanning Data

被引：2

作者：

Karnas, Grzegorz ^{[1
]}

Baranski, Piotr ^{[2
]}

Maslowski, Grzegorz ^{[1
]}

机构：

[1] Rzeszow Univ Technol, Dept Elect & Comp Engn Fundamentals, PL-35959 Rzeszow, Poland

[2] Polish Acad Sci, Inst Geophys, PL-01452 Warsaw, Poland

来源：

ENERGIES | 2022年 / 15卷 / 22期

关键词：

lightning leader modeling; electric field; lightning location system; positive ground flash; cloud-to-ground lightning discharge; DETECTION NETWORK;

D O I：

10.3390/en15228566

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The aim of this paper is modeling and parameter identification of the leader stage preceding the positive stroke of natural cloud-to-ground lightning. This research is based on electric field and 3D Doppler radar data recorded during thunderstorms in Poland, as supplied by database information from long range lightning location systems. The numerical simulation performed in the MATLAB platform showed that a high number of assumed model parameters, such as non-uniform leader tip speed and lightning channel charge density, allowed us to obtain greater compliance between simulated and measured electric field signatures than in the classical approach. The proposed model can be implemented in lightning location systems and forest fire warning systems, operating globally to reduce the risk of damages caused by positive cloud-to-ground flashes being one of the most dangerous type of lightning events. An alternative application of the model can be for research, including ground-based lightning data supplementation for the corresponding satellite and airborne registrations.

引用

页数：27