Results 11 to 20 of about 43,495 (253)
Optical observation of needles in upward lightning flashes. [PDF]
Sci Rep, 2020 AbstractWhy lightning sometimes has multiple discharges to ground is an unanswered question. Recently, the observation of small plasma structures on positive leaders re-ignited the search. These small plasma structures were observed as pulsing radio sources along the positive leader length and were named “needles”.
Saba MMF +4 more
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On the Triggering Mechanisms of Upward Lightning. [PDF]
Sci Rep, 2019 AbstractUpward lightning studies took place in Rapid City, South Dakota, USA and S. Paulo, Brazil during the summer thunderstorm seasons from 2011 to 2016. One of the main objectives of these campaigns was to evaluate and characterize the triggering of upward positive leaders from tall objects due to preceding nearby flash activity.
Schumann C +6 more
europepmc +4 more sources
Characterizing upward lightning with and without a terrestrial gamma-ray flash [PDF]
Journal of Geophysical Research: Atmospheres, 2018 We compare two observations of gamma-rays before, during, and after lightning flashes initiated by upward leaders from a tower during low-altitude winter thunderstorms on the western coast of Honshu, Japan.
Bowers, G. S. +7 more
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Upward Lightning Takes Its Cue from Nearby Lightning Events
Eos, 2021 Lightning in a thunderstorm changes the electromagnetic field in a way that sparks upward lightning from tall structures.
Elizabeth Thompson
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Two associated upward lightning flashes that produced opposite polarity electric field changes [PDF]
Geophysical Research Letters, 2009 Daohong Wang, Yijun Zhang
exaly +2 more sources
Energies, 2022 In this paper, upward leader initiation and the probability of lightning flashes on different air terminal were analyzed in detail. With the growing global warming, lightning flash density has increased abruptly, especially in tropical countries.
Irshad Ullah +3 more
doaj +1 more source
Red sprites, upward lightning, and VLF perturbations [PDF]
Reviews of Geophysics, 1999 In the last decade there has been a great deal of interest in the detection and understanding of phenomena occurring above active thunderstorms. The discovery of the optical phenomena now termed “red sprites” is discussed, along with the properties that have been experimentally determined. Areas of disagreement between experimentalists are pointed out.
Craig J. Rodger
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Characteristics of Upward Lightning by Interferometric Observation Result
IEEJ Transactions on Power and Energy, 1997 Jun Onuki +4 more
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Upward Bipolar Lightning Flashes Originated From the Connection of Recoil Leaders With Intracloud Lightning [PDF]
Geophysical Research Letters, 2022 AbstractThe present work shows high‐speed videos of two upward flashes that started with positive upward leaders and, instead of being followed by negative subsequent return strokes, they were followed by positive subsequent return strokes. In both cases, after the positive leaders developed, recoil leaders (RL) appeared in their decayed branches as ...
Ivan Toucedo Cruz +3 more
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Atmosphere, 2022 The results of the physical modelling of the formation processes of upward discharges from grounded objects in the artificial thunderstorm cell’s electric field are presented. We established the considerable influence of the electrode tip’s radius on the
Nikolay Lysov +9 more
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