Results 11 to 20 of about 128 (109)

Relationship Between Current Characteristics of Rocket-triggered Lightning During Different Discharge Stages

open access: yes应用气象学报, 2020
The research on rocket-triggered lightning has made great progress since 1967. Various parts of rocket-triggered lightning are studied, but differences between initial stages of different types of rocket-triggered lightning and the relevance on each part
Wang Jingxuan   +8 more
doaj   +1 more source

Characterize Basin‐Scale Subsurface Using Rocket‐Triggered Lightning

open access: yesGeophysical Research Letters, 2022
This paper exploits triggered lightning as a point source for the basin‐scale electromagnetic tomographic survey to image 3‐D subsurface electrical properties in basins.
Yu‐Li Wang   +5 more
doaj   +1 more source

A New FDTD Model for Lightning Return Stroke Channel Above Lossy Ground and Its Validation With Rocket-Triggered Lightning Data

open access: yesIEEE Access, 2023
FDTD method has been widely used in calculations of electromagnetic fields produced by a lightning return stroke and its effects on other systems.
Ge Zhang   +4 more
doaj   +1 more source

Low Frequency Magnetic Field Observations of Natural Positive Leaders Featuring Stepwise Propagation

open access: yesGeophysical Research Letters, 2023
We examine the low‐frequency (LF) magnetic pulses recorded for the positive leader in two natural lightning flashes as recorded on the high‐speed video camera.
Ziyi Wang   +10 more
doaj   +1 more source

Three‐phase overvoltage at lightning strike point due to direct triggered lightning to the phase wire of 10 kV power distribution line

open access: yesIET Generation, Transmission & Distribution, 2022
This paper reports the observation results of three‐phase overvoltage at the lightning strike point of a 1.5 km, 10 kV power distribution line that was struck directly by rocket triggered lightning to its phase wire C.
Jianguo Wang   +7 more
doaj   +1 more source

Propagation of positive, negative, and recoil leaders in upward lightning flashes

open access: yesEarth and Planetary Physics, 2019
Leader propagation is a fundamental issue in lightning physics. The propagation characteristics of positive leaders and negative leaders are summarized and compared based on data from high-speed camera and electromagnetic field in rocket-triggered ...
XiuShu Qie   +11 more
doaj   +1 more source

A Comprehensive Study on the Improved Radio-Frequency Magnetic Field Measurement for the Initial Upward Leader of a Negative Rocket-Triggered Lightning Flash

open access: yesRemote Sensing, 2021
The spectrum analysis of the lightning current in the experiment campaign of 2019 reveals that the lightning current waveform contains rich medium-frequency (MF) radiation signals in the initial stage.
Tao Shi   +4 more
doaj   +1 more source

Differences between triggered lightning striking to ground and distribution line inferred from measured currents and electromagnetic fields

open access: yesHigh Voltage, 2022
In 2018–2019, two types of rocket‐triggered lightning tests, that is, striking to ground and distribution line, were conducted in Guangdong, China. The main focus of this paper is to compare the waveform parameters of the return strokes (RS) from the two
Li Cai   +6 more
doaj   +1 more source

Characteristics of Medium-low Frequency Magnetic Fields of Initial Continuous Current in Rocket-triggered Lightning

open access: yes应用气象学报, 2020
Rocket-triggered lightning experiment conducted in Field Experiment Base on Lightning Sciences, China Meteorological Administration (CMA_FEBLS) provides a good opportunity to study the discharge process and its related electromagnetic effects. During the
Fan Yanfeng   +5 more
doaj   +1 more source

Application of Genetic Algorithm to Estimation of Function Parameters in Lightning Currents Approximations

open access: yesInternational Journal of Antennas and Propagation, 2017
Genetic algorithm (GA) is applied for the estimation of two-peaked analytically extended function (2P-AEF) parameters in this paper. 2P-AEF is used for approximation of measured and typical lightning discharge currents.
V. Javor   +3 more
doaj   +1 more source

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