Characteristics of return stroke currents of classical and altitude triggered lightning in GCOELD in China

Zheng, Dong; Zhang, Yijun; Lü, Weitao; Zhang, Yang; Dong, Wei; Chen, Shaodong; Dan, Jianru

doi:10.1016/j.atmosres.2012.11.009

Cited by 26 publications

(29 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the analysis of the 28 RSs involved in this study, Zheng et al . [] found that the best correlation was expressed by a logarithmic relationship.…”

Section: Statistics and Analysissupporting

confidence: 91%

“…Figure shows the configuration of the test equipment at the field site; the triggered lightning system was also illustrated in Figure 1 of Zheng et al . []. From 2006 to 2016, a total of 107 TLFs have been successfully generated.…”

Section: Experiments and Measurementsmentioning

confidence: 99%

“…This group included two altitude TLFs in which the downward leaders were connected to the lightning rod and so provided rare direct current records that were analyzed by Zheng et al . []. Another abnormal TLF was generated whose upward leader propagated twice at different moments [ Zheng et al ., ].…”

Section: Experiments and Measurementsmentioning

confidence: 99%

“…In particular, over the past 10 years, two teams at the Chinese Academy of Meteorological Sciences and the Institute of Atmospheric Physics have conducted continuous triggered lightning experiments in Guangdong Province, southern China (the Guangdong Comprehensive Observation Experiment on Lightning Discharge (GCOELD) [e.g., Zheng et al ., ; Zhang et al ., ]) and Shandong Province, northern China (the Shandong Artificially Triggered Lightning Experiment (SHATLE) [e.g., Zhang et al ., ; Qie et al ., , ]), respectively. These experiments have not only deepened our understanding of the physical characteristics of lightning discharges based on the acoustic, optic, electrical, and magnetic signals associated with lightning [e.g., Zhang et al ., ; Lu et al ., , ; Xiao et al ., ; Zheng et al ., ] but also played an important role in studying and testing the lightning strike mechanism [e.g., Chen et al ., ; Zhang et al ., , ], evaluating the performance of lightning location systems [e.g., Chen et al ., ], and so on. Among the parameters associated with lightning discharge, the lightning current is a vital physical quantity because it directly characterizes the discharge processes and the strength of the lightning and is a key parameter in lightning protection works.…”

Section: Introductionmentioning

confidence: 99%

“…We also update the results of Zheng et al . [], who investigated 29 RS currents, and provide a general summary of the current data obtained from triggered lightning by GCOELD. In this study, we generated the most triggered lightning events in any study of triggered lightning in China, which will contribute to our knowledge of lightning characteristics in southern China.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Characteristics of the initial stage and return stroke currents of rocket‐triggered lightning flashes in southern China

et al. 2017

Self Cite

View full text Add to dashboard Cite

This study investigates the initial stage (IS) and return stroke (RS) currents of 50 triggered lightning flashes (TLFs) that were conducted in southern China. The IS of the negative TLFs has a longer duration and larger average current, charge transfer, and action integral than those reported elsewhere, with geometric means (GMs) of 347.9 ms, 132.5 A, 45.1 C, and 10.0 × 103 A2 s, respectively. Two positive TLFs containing no RS have much greater average currents, charge transfers, and action integrals in the IS when compared with the negative TLFs. The RS has a greater peak current (17.2 kA; GM, same to below), charge transfer within 1 ms (1.3 C), and action integral within 1 ms (5.8 × 103 A2 s), and shorter 10% to 90% rise time (0.4 μs) than elsewhere. The peak current is prominently correlated with the rate of rise, charge transfer within 1 ms, and action integral within 1 ms. Furthermore, when the total duration of the RS and any following continuing currents is longer than 40 ms, the peak current, charge transfer within 1 ms, and action integral within 1 ms of the RS are seldom greater than 25 kA, 2.6 C, and 15 × 103 A2 s, respectively. It is indicated that TLFs containing RSs tend to have a longer duration but a smaller charge transfer during the IS than those without RS. The peak current of the RS is weakly correlated with its preceding silence period when there was no channel base current.

show abstract

“…In the analysis of the 28 RSs involved in this study, Zheng et al . [] found that the best correlation was expressed by a logarithmic relationship.…”

Section: Statistics and Analysissupporting

confidence: 91%

Section: Experiments and Measurementsmentioning

confidence: 99%

Section: Experiments and Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Characteristics of the initial stage and return stroke currents of rocket‐triggered lightning flashes in southern China

et al. 2017

Self Cite

View full text Add to dashboard Cite

show abstract

Characterization of initial current pulses in negative rocket‐triggered lightning with sensitive magnetic sensor

Zhang

Jiang

et al. 2016

Radio Science

View full text Add to dashboard Cite

We report the new measurement of initial current pulses in rocket‐triggered lightning with a broadband magnetic sensor at 78 m distance. The high sensitivity of our sensor makes it possible to detect weak ripple deflections (as low as 0.4 A) that are not readily resolved in the typical measurements of channel‐base current in rocket‐triggered lightning experiments. The discernible magnetic pulses within 1 ms after the inception of a sustained upward positive leader from the triggering wire can be classified into impulsive pulses and ripple pulses according to the discernibility of separation between individual pulses. The time scale (usually >20 µs) of ripple pulses is substantially longer than the leading impulsive pulses (with time scales typically <10 µs), and the amplitude is significantly reduced, whereas there is no considerable difference in the interpulse pulse. Along with our previous finding on the burst of magnetic pulses during the initial continuous current in rocket‐triggered lightning, the new measurements suggest that the stepwise propagation might be a persistent feature for the upward positive leader in rocket‐triggered lightning, and the stepping of positive leader early in triggered lightning could be characterized with the observation of ripple pulses. The precedence of impulsive magnetic pulse measured at 78 m range relative to the arrival of corresponding current pulse at the channel base indicates that the ionization wave launched by individual stepping of positive leader propagates downward along the triggering wire at a mean velocity of 1.23 × 108 m/s to 2.25 × 108 m/s.

show abstract

A Review of Atmospheric Electricity Research in China from 2011 to 2018

Qie

Zhang

2019

Adv. Atmos. Sci.

View full text Add to dashboard Cite

Characteristics of return stroke currents of classical and altitude triggered lightning in GCOELD in China

Cited by 26 publications

References 26 publications

Characteristics of the initial stage and return stroke currents of rocket‐triggered lightning flashes in southern China

Characteristics of the initial stage and return stroke currents of rocket‐triggered lightning flashes in southern China

Characterization of initial current pulses in negative rocket‐triggered lightning with sensitive magnetic sensor

A Review of Atmospheric Electricity Research in China from 2011 to 2018

Contact Info

Product

Resources

About