Results 11 to 20 of about 270 (169)
Electron acceleration above thunderclouds [PDF]
Environmental Research Letters, 2013 The acceleration of electrons results in observable electromagnetic waves which can be used for remote sensing. Here, we make use of ∼4 Hz–66 MHz radio waves emitted by two consecutive intense positive lightning discharges to investigate their impact on ...
Martin Füllekrug +18 more
doaj +5 more sources
Geophysical Research LettersNarrow bipolar events (NBEs) are often generated in overshooting thunderclouds (OT) penetrating the stratosphere. However, how and under what conditions OT produces such discharges remains unclear.
Baojun Wu +7 more
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A 3D Numerical Model to Estimate Lightning Types for PyroCb Thundercloud
Applied Sciences (Switzerland)Pyrocumulonimbus (pyroCb) thunderclouds, produced from extreme bushfires, can initiate frequent cloud-to-ground (CG) lightning strikes containing extended continuing currents.
Surajit Das Barman +2 more
exaly +3 more sources
Using Lightning Flashes to Image Thunderclouds. [PDF]
J Geophys Res Atmos, 2019 AbstractThe optical energy emitted by lightning flashes interacts with the surrounding cloud medium through scattering and absorption. The optical signals recorded by space‐based lightning imagers describe a convolution of lightning flash energetics and radiative transfer effects in the intervening cloud layer.
Peterson M.
europepmc +4 more sources
Thundercloud structures detected and analyzed based on coherent Doppler wind lidar [PDF]
Atmospheric Measurement Techniques, 2023 The studies of intracloud discharges may shed light on the microphysical structure of thunderclouds, as both the magnitude and the sign of charge separation due to graupel collides with ice crystals within the strong updrafts are influenced by the ...
K. Wu +16 more
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Thundercloud Project: Exploring high-energy phenomena in thundercloud and lightning [PDF]
Progress of Theoretical and Experimental Physics, 2020 AbstractWe have designed, developed, and deployed a distributed sensor network to observe high-energy ionizing radiation, primarily gamma rays, from winter thunderclouds and lightning in coastal areas of Japan. Starting in 2015, we have installed a total of more than 15 ground-based detector systems in Ishikawa Prefecture and Niigata Prefecture, and ...
Yuasa, Takayuki +12 more
openaire +2 more sources
Fractal structure effect on electric field within thunderclouds
Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2021 The paper considers the degree of fractal structure impact on the electric field intensity inside thunderstorm clouds using the apparatus of fractional integrodifferentiation.
Kumykov, T.S.
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Charge Density Distribution Model in Self-Organizing Cloud [PDF]
E3S Web of Conferences, 2020 The paper considers a charge distribution model in a thundercloud presenting a self-organizing system in view of its fractal structure. An analytical solution to the model equation is obtained. Using numerical calculations, the distribution of charges in
Kumykov Tembulat
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Numerical Model of Cloud-to-Ground Lightning for PyroCb Thunderstorms
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 This paper demonstrates a 2-D numerical model to represent two conceptual pyrocumulonimbus (pyroCb) thundercloud structures: i) tilted dipole and ii) tripole structure with enhanced lower positive charge layer, which are hypothesized to explain the ...
Surajit Das Barman +3 more
doaj +1 more source
Continental thunderstorm ground enhancement observed at an exceptionally low altitude [PDF]
Atmospheric Chemistry and Physics, 2022 Two long-lasting thunderstorm ground enhancement (TGE) events were registered at the Milešovka meteorological observatory in Czechia (50.55∘ N, 13.93∘ E; 837 m altitude) on 23 April 2018, during linearly organized thunderstorms.
I. Kolmašová +14 more
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