Results 21 to 30 of about 11,683 (259)

Calculation of lightning attachment points on ships based on lightning leader progression model and experimental verification

Zhongguo Jianchuan Yanjiu, 2023
ObjectiveIn order to improve lightning protection measures for ships, it is vital to evaluate the lightning strike risk and lightning rod protection effect.
Mi ZHOU, Xinrui ZUO, Dongdong WANG, Denglei DUAN, Shengquan ZHENG, Li CAI, Jianguo WANG   +6 more
doaj   +1 more source

The characteristics of lightning risk and zoning in Beijing simulated by a risk assessment model [PDF]

Natural Hazards and Earth System Sciences, 2014
In this study, the cloud-to-ground (CG) lightning flash/stroke density was derived from the lightning location finder (LLF) data recorded between 2007 and 2011.
H. Hu, J. Wang, J. Pan
doaj   +1 more source

Location Accuracy Improvement of Long-range Lightning Detection Network In China by Compensating Ground Wave Propagation Delay

Remote Sensing, 2022
Very low frequency (VLF) electromagnetic waves distort along the long propagation path, and that causes the arrival time of the signals measured by the long-range lightning system to be delayed.
Junchao Zhang, Jiahao Zhou, Jie Li, Jiaying Gu, Qilin Zhang, Bingzhe Dai, Yao Wang, Jialei Wang, Yuqing Zhong, Qingda Li   +9 more
doaj   +1 more source

A dataset of thunderstorm features of the FY-2E full-disc observation area from 2010 to 2018

中国科学数据, 2023
Thunderstorm clouds yield lightning discharges and are often accompanied by damaging weather; therefore, they are important concerns for weather monitoring and forecasting.
MA Ruiyang, ZHENG Dong
doaj   +1 more source

Statistical estimation of locations of lightning events [PDF]

Deleted DOIs, 1999
In this paper, a statistical approach to the retrieval of lightning locations is proposed for the first time. This novel approach views the errors of the time measurements as random variables rather than unknown numbers. The unknown location (x, y, z) as well as the standard deviation σ of the errors are treated as unknown parameters of a statistical ...
Pensky, Marianna, Cannon, John R.
openaire   +4 more sources

Lightning Location Method Using Orthogonal Coded Polarization Optical Time-Domain Reflectometer in Optical Fiber Transmission

Photonics
Lightning strike is one of the main factors affecting power transmission lines and may lead to broken strands and damage of transmission lines, resulting in abnormal power supply.
Weihua Lian, Xingrui Su, Wei Li, Bin Wu, Xiaofang Feng, Hanqi Zhao, Desong Wang, Guilong Wu, Lin Liu, Yitong Chen, Kaijing Hu   +10 more
doaj   +1 more source

Lightning Identification Method Based on Deep Learning

Atmosphere, 2022
In this study, a deep learning method called Lightning-SN was developed and used for cloud-to-ground (CG) lightning identification. Based on artificial scenarios, this network model selects radar products that exhibit characteristic factors closely ...
Zheng Qian, Dongdong Wang, Xiangbo Shi, Jinliang Yao, Lijun Hu, Hao Yang, Yongsen Ni   +6 more
doaj   +1 more source

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

Energies, 2022
The aim of this paper is modeling and parameter identification of the leader stage preceding the positive stroke of natural cloud-to-ground lightning.
Grzegorz Karnas, Piotr Barański, Grzegorz Masłowski   +2 more
doaj   +1 more source

Research on lightning transient distribution characteristics of cable-stayed bridges

暴雨灾害, 2023
Bridges are usually located at the junction of land and water, where the surrounding area is open terrain, making them to be easily damaged by lightning strikes.
Yajing SHI, Jian CHAI, Dajun XU, Ying PI, Jing Sun   +4 more
doaj   +1 more source

Statistical patterns in the location of natural lightning [PDF]

Journal of Geophysical Research, 2012
Lightning discharges are nature's way of neutralizing the electrical buildup in thunderclouds. Thus, if an individual discharge destroys a substantial fraction of the cloud charge, the probability of a subsequent flash is reduced until the cloud charge separation rebuilds.
F. G. Zoghzoghy, M. B. Cohen, R. K. Said, U. S. Inan   +3 more
openaire   +3 more sources