Characteristics of a multi-stroke “bolt from the blue” lightning-type that caused a fatal disaster

Fan, Xiangpeng; Zhang, Yijun; Yin, Qiyuan; Zheng, Dong

doi:10.1080/19475705.2018.1553800

Cited by 10 publications

(4 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Qie, Kong, et al (2005) and found that the lower positive charge region was located about 1.7 km above the ground, while the main negative charge region is located 2.2 km above the ground in Qinghai. Fan et al (2019) examined a thunderstorm in Datong, Qinghai, finding that the charge structure in the thunderstorm showed a polarity structure (positivenegative-positive) in most phases. Qie et al (2009) studied the electrical characteristics of thunderstorms in four plateau regions of China with different elevations, they found that the main charge region inside of thunderstorms could be represented basically by a tripolar structure.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Spectral Study of Rare Upward Developing, Circling, and Branching Cloud‐To‐Ground Lightning

Xu,

Gou,

Yuan

et al. 2024

JGR Atmospheres

View full text Add to dashboard Cite

The development of cloud‐to‐ground (CG) lightning channel is one of the main bases reflecting the discharge characteristics. Time‐resolved spectra of CG lightning with eight return strokes were recorded by a slit‐less high‐speed spectroscope. We found an unusual phenomenon in which a branch developed upward from a node following a circling structure into the cloud after the first return stroke. To investigate the propagation properties of this lightning, characteristic parameters such as the two‐dimensional speed of the leader, node temperature, and electron density are analyzed. The physical mechanism of the branch is discussed. Spectral analysis reveals that the main channel temperature and electron density are approximately 2.72–3.07 × 104 K and 0.23–2.03 × 1018 cm−3, respectively. The temperature and electron density increase as the branch approaches the cloud base, similar to the feature of the main channel approaching the ground. The temperature and electron density of the node are higher than at other locations in the circular channel, indicating that massive charge accumulated around the node. Lightning occurred in the Qilian Mountains in a complex landscape, which easily yielded an uneven distribution in the local electric field of the air, resulting in channel bending, kinking, and even circle development. The phenomenon of the branch developed from the node to the cloud may be due to the fact that the branch is formed during the return stroke process.

show abstract

Section: Discussionmentioning

confidence: 99%

“…Fan et al. (2019) examined a thunderstorm in Datong, Qinghai, finding that the charge structure in the thunderstorm showed a polarity structure (positive‐negative‐positive) in most phases. Qie et al.…”

Section: Discussionmentioning

confidence: 99%

Spectral Study of Rare Upward Developing, Circling, and Branching Cloud‐To‐Ground Lightning

Xu,

Gou,

Yuan

et al. 2024

JGR Atmospheres

View full text Add to dashboard Cite

show abstract

“…The most probable mechanism for the lightning injuries was the side flash. 18 Lightning victims may present with minor lightning injuries, moderate lightning injuries or severe lightning injuries. This is almost tantamount to the 'dose' of lightning to which the victims were exposed.…”

Section: Lightning Injuriesmentioning

confidence: 99%

Injuries and deaths from lightning

Blumenthal

2020

J Clin Pathol

View full text Add to dashboard Cite

show abstract

“…Combined with the technique of a second cross-correlation process with a reduced window scale, this algorithm can significantly improve the sufficiency of seeking and matching of the pulse signals and the accuracy of pulse peak time extraction based on multistation electric field waveforms [1], [23]. Thus, the lightning location ability of LFEDA has been greatly improved, allowing lightning discharge channels to be described in terms of more radiation sources [1] and playing an important role in the tracing and analysis of a fatal lightning accident [25]. In addition, the research team of LFEDA has explored the potential expansion of the available positioning methods; accordingly, the time reversal (TR) technique has been introduced for threedimensional lightning location [26].…”

Section: Introductionmentioning

confidence: 99%

Application of Ensemble Empirical Mode Decomposition in Low-Frequency Lightning Electric Field Signal Analysis and Lightning Location

Fan

Zhang

Krehbiel

et al. 2021

IEEE Trans. Geosci. Remote Sensing

Self Cite

View full text Add to dashboard Cite

The application of empirical mode decomposition (EMD) in the analysis and processing of lightning electric field waveforms acquired by the low-frequency e-field detection array (LFEDA) in China has significantly improved the capabilities of the low-frequency/very-low-frequency (LF/VLF) time-of-arrival technique for studying the lightning discharge processes. However, the inherent mode mixing and the endpoint effect of EMD lead to certain problems, such as an inadequate noise reduction capability, the incorrect matching of multistation waveforms, and the inaccurate extraction of pulse information, which limit the further development of the LFEDA's positioning ability. To solve these problems, the advanced ensemble EMD (EEMD) technique is introduced into the analysis of LF/VLF lightning measurements, and a double-sided bidirectional mirror (DBM) extension method is proposed to overcome the endpoint effect of EMD. EEMD can effectively suppress mode mixing, and the DBM extension method proposed in this article can effectively suppress the endpoint effect, thus greatly improving the accuracy of a simulated signal after a 25-500-kHz bandpass Manuscript

show abstract

Characteristics of a multi-stroke “bolt from the blue” lightning-type that caused a fatal disaster

Abstract: View related articles View Crossmark data Citing articles: 2 View citing articles Characteristics of a multi-stroke "bolt from the blue" lightning-type that caused a fatal disaster

Cited by 10 publications

References 35 publications

Spectral Study of Rare Upward Developing, Circling, and Branching Cloud‐To‐Ground Lightning

Spectral Study of Rare Upward Developing, Circling, and Branching Cloud‐To‐Ground Lightning

Injuries and deaths from lightning

Application of Ensemble Empirical Mode Decomposition in Low-Frequency Lightning Electric Field Signal Analysis and Lightning Location

Contact Info

Product

Resources

About