Results 151 to 160 of about 506,929 (186)

On the initiation of lightning discharge in a cloud: 2. The lightning initiation on precipitation particles

Journal of Geophysical Research: Atmospheres, 1996
Assuming that transient values of an electric field and of a concentration of particles can be much higher in small local regions of a cloud than the maximum values measured within the thundercloud, the authors attempt to explain the lightning initiation mechanism.
Manh Duc Nguyen, Stanislaw Michnowski
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Runaway Breakdown and Hydrometeors in Lightning Initiation

Physical Review Letters, 2013
The particular electric pulse discharges are observed in thunderclouds during the initiation stage of negative cloud-to-ground lightning. The discharges are quite different from conventional streamers or leaders. A detailed analysis reveals that the shape of the pulses is determined by the runaway breakdown of air in the thundercloud electric field ...
A V, Gurevich, A N, Karashtin
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The mechanism of lightning attraction and the problem of lightning initiation by lasers

Physics-Uspekhi, 2000
Physical processes determining the ability of lightning to change its trajectory by choosing high constructions to strike are discussed. The leader mechanism of lightning propagation is explained. The criterion for a viable ascending (upward) leader to originate from a construction is established.
E.M. Bazelyan, Yurii P. Raizer
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Venus lightning: Estimation of charge and dimensions of charge regions for lightning initiation

Icarus, 2021
Abstract The occurrence of Venusian lightning must be preceded by electrification of particles in Venusian clouds and separation of these charged particles to form distinct charged regions. In this work, we estimate the minimum required charge and the dimensions of these charge regions in order for lightning to occur.
V.R. Dinesh Kumar, Jayesh P. Pabari, Kinsuk Acharyya, C.T. Russell   +3 more
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Natural and artificially-initiated lightning and lightning test standards

Proceedings of the IEEE, 1988
Present understanding of both natural and artificially initiated lightning is first reviewed. The ways in which lightning can cause damage, the methods that are used to provide protection from that damage, and the test standards that are used to assess the immunity of systems from lightning damage are then examined.
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Studies of lightning initiation

2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS), 2017
A long-standing question in lightning studies has concerned how lightning is initiated in thunderstorms, given the absence of physical conductors. Remote sensing observations of discharges are starting to provide the answer to this question, obtained in large part with radio frequency instruments and techniques.
openaire   +1 more source

Study of the conditions of lightning initiation by aircraft

, 2017
The main aim of this study is to investigate the conditions of lightning initiation by aircraft, as most of the lightning flashes that an aircraft receives are self-initiated.
Valera Fidalgo, Elisabeth
core   +3 more sources

Artificial initiation of lightning discharges

Journal of Geophysical Research, 1961
Investigations of atmospheric electricity would be considerably aided if one could cause lightning to strike from a storm at will. Were this possible, apparatus could be set up to observe and measure the discharge and determine what effects it produces. It might be supposed that if a balloon or kite were flown on a wire near a storm, the probability
M. Brook, G. Armstrong, R. P. H. Winder, B. Vonnegut, C. B. Moore   +4 more
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Radio emission of lightning initiation

Physics Letters A, 2003
AbstractThe wide band (0.1–30 MHz) high time resolution (16 ns) radio interferometer is constructed and used to study the initialradio emission of lightning. It is established that the first lightning radio pulse is bipolar and its form, width and amplitude agreewith theoretical predictions [Phys. Lett.
A.V. Gurevich, L.M. Duncan, A.N. Karashtin, K.P. Zybin   +3 more
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Correlation of Radio and Gamma Emissions in Lightning Initiation

Physical Review Letters, 2013
The results of simultaneous radio and gamma emission measurements during thunderstorms are presented. A gamma detector situated at the height 3840 m and two radio detectors of Tien-Shan Mountain Scientific Station (altitude 3340 m) registered intensive gamma flashes and radio pulses during the time of lightning initiation.
A V, Gurevich, V P, Antonova, A P, Chubenko, A N, Karashtin, G G, Mitko, M O, Ptitsyn, V A, Ryabov, A L, Shepetov, Yu V, Shlyugaev, W M, Thu, L I, Vildanova, K P, Zybin   +11 more
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