Results 111 to 120 of about 465 (149)
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Continuing currents in cloud-to-ground lightning discharges
Journal of Geophysical Research, 1962About 200 excellent photographs of cloud-to-ground discharges, taken with a newly designed rotating-film camera, were obtained from very active thunderstorms in 1959 and 1960. The electric-field changes and luminosity variations of the photographed discharges were recorded simultaneously on two oscilloscopes having different time resolution.
N. Kitagawa, M. Brook, E. J. Workman
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Characterization of positive cloud-to-ground Lightning Discharges
2010 30th International Conference on Lightning Protection (ICLP), 2010We examined 52 positive cloud-to-ground flashes containing 63 return strokes recorded in Gainesville, Florida, in 2007-2008. The U.S. National Lightning Detection Network located 51 (96%) of the positive return strokes at distances of 7.8 to 157 km from the field measuring station and correctly identified 48 (91%) of them as cloud-to-ground discharges.
Amitabh Nag +3 more
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Thunder events and cloud‐to‐ground lightning frequencies
Journal of Geophysical Research: Atmospheres, 1988Data on thunder days, thunder events (discrete periods of nearly continuous thunder), and cloud‐to‐ground lightning flashes for portions of the United States were compared to discern how well the frequencies of thunder days, events, and lightning flashes related.
S. A. Changnon +2 more
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On the chances of being struck by cloud-to-ground lightning
2003 IEEE Bologna Power Tech Conference Proceedings,, 2004An assumption of complete spatial randomness has been used to obtain analytic expressions that describe the probability that the closest lightning strike is within any distance of an arbitrary point or a simulated power line, if the area density of strikes in the region is known. Preliminary tests of these functions show that they describe experimental
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Relations of Thunderstorms and Cloud-to-Ground Lightning Frequencies
Journal of Climate, 1989Abstract Temporal and spatial relationships between thunderstorms (events) and flashes were investigated using data for 1983–85 for 25 first-order stations (10 in the West and 15 along the East Coast). Thunder events were compared with flashes within three ranges: 5 km, 10 km, and 20 km, around each station.
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Characteristics of downward leaders in a cloud-to-ground lightning strike on a lightning rod
Atmospheric Research, 2018Abstract A natural downward negative cloud-to-ground (CG) lightning was observed at a close distance of 370 m by using electric field change measurements and a high-speed camera at 5400 frames per second (fps). Two subsequent leader-return strokes of the lightning hit a lightning rod installed on the top of a seven-story building in Beijing city ...
Caixia Wang +4 more
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Spatial and Temporal Characteristics of Cloud to Ground Lightning in Guizhou Province
2008 Fifth International Conference on Fuzzy Systems and Knowledge Discovery, 2008In terms of observations from the single station lightning location system and the method of statistic, the major weather process, days, frequency and diversification of lightning during 2005~2006 are elementary studied, to show the spatial and temporal characteristics of cloud to ground (CG) lightning activities in Guizhou province.
Yanwe Li +5 more
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Positive cloud‐to‐ground lightning in summer thunderstorms
Journal of Geophysical Research: Oceans, 1982This paper describes cloud‐to‐ground lightning that lowers positive charge to earth over mountainous terrain in the northern Rocky Mountain region. A sample of 14 visually confirmed ground flashes provided criteria for identifying positive ground flashes by using only measured electric fields.
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European cloud-to-ground lightning characteristics
2014 International Conference on Lightning Protection (ICLP), 2014D. R. Poelman +3 more
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Thunderstorm Charge Structures Favouring Cloud-to-Ground Lightning
Atmospheric Research, 2021Nicolau PINEDA +2 more
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