Results 41 to 50 of about 3,043 (210)
Citizen Science Observation of a Gamma‐Ray Glow Associated With the Initiation of a Lightning Flash
Geophysical Research Letters, 2023 Gamma‐ray glows are observational evidence of relativistic electron acceleration due to the electric field in thunderclouds. However, it is yet to be understood whether such relativistic electrons contribute to the initiation of lightning discharges.
M. Tsurumi +18 more
doaj +1 more source
Chromatic thresholds in dense random graphs [PDF]
, 2016 The chromatic threshold $\delta_\chi(H,p)$ of a graph $H$ with respect to the random graph $G(n,p)$ is the infimum over $d > 0$ such that the following holds with high probability: the family of $H$-free graphs $G \subset G(n,p)$ with minimum degree ...
Allen, Peter +4 more
core +2 more sources
A model study of corona emission from hydrometeors [PDF]
, 1998 The maximum measured electric fields in thunderclouds are an order of magnitude less than the fields required for electric breakdown of the air. One explanation for lightning initiation in these low fields is that electric breakdown first occurs at the ...
Abdel-Salam +20 more
core +3 more sources
The polarity of thunderclouds [PDF]
Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1928 In a paper on ‘'The Electric Fields of South African Thunderstorms,” Mr. J. Craib and the writer described some observations made at Somerset East during 1926, from which it was concluded that the majority of the storms examined were of positive polarity.
openaire +1 more source
Atmosphere, 2021 The AMPERA (Atmospheric Measurement of Potential and ElectRic field on Aircraft) electric field network was integrated on the Falcon 20 (F20) of SAFIRE (the French facility for airborne research) in the framework of EXAEDRE (EXploiting new Atmospheric ...
Magalie Buguet +5 more
doaj +1 more source
Penetrating Radiation from Thunderclouds [PDF]
Nature, 1933 IN their recent paper1 B. F. J. Schonland and J. P. T. Viljoen throw doubts on the ability of ionisation methods to detect the penetrating radiation from thunderclouds. However, this method has been in use at this station during the thunderstorm season October 1932–April 1933 with practically the same results as those obtained by Schonland and Viljoen.
openaire +1 more source
Atmosphere, 2021 A recent study pointed out that macroscopic dark matter (macros) traversing through the Earth’s atmosphere can give rise to hot and ionized channels similar to those associated with lightning leaders. The authors of the study investigated the possibility
Vernon Cooray +3 more
doaj +1 more source
Study of Positive Corona Discharge of Needle Plate Electrodes in Airflow
High Voltage, EarlyView.ABSTRACT For high‐speed moving objects such as aircraft and wind turbine blades, discharge occurs under strong airflow. Research on lightning attachment characteristics has been extensive, whereas the role of corona discharge in pre‐breakdown streamer development has received less attention.
Lei Lan +6 more
wiley +1 more source
Observation of gamma ray bursts at ground level under the thunderclouds
Physics Letters B, 2016 We observed three γ-ray bursts related to thunderclouds in winter using the prototype of anti-neutrino detector PANDA made of 360-kg plastic scintillator deployed at Ohi Power Station at the coastal area of the Japan Sea.
Y. Kuroda +6 more
doaj +1 more source
Analysis of the first gigantic jet recorded over continental North America [PDF]
, 2007 [1] Two low-light cameras near Marfa, Texas, recorded a gigantic jet over northern Mexico on 13 May 2005 at approximately 0423:50 UTC. Assuming that the farthest of two candidate storm systems was its source, the bright lower channel ended in a fork at ...
Boccippio +38 more
core +1 more source