Results 41 to 50 of about 506,929 (186)

Attachment of lightning flashes to grounded structures

, 2012
A grounded structure can interact with a lightning flash in two different ways. It can interact with either a downward or an upward lightning flash. The initiation of a downward lightning flash takes place in the cloud, whereas in the case of upward ...
Cooray, Vernon,, Vernon Cooray
core   +1 more source

Numerical Simulation of Building Geometry's Influence on Attachment Process of Upward Leader

应用气象学报
High-rise buildings not only increase urban land use efficiency, but also facilitate the attainment of conditions required for lightning leader initiation due to enhanced electric field distortion at the top, thereby increase lightning activity ...
Zhao Yubin, Guo Xiufeng, Zhang He, Zheng Yuhang, Liu Shijie, Zhao Nian   +5 more
doaj   +1 more source

On the classification of self-triggered versus other-triggered lightning flashes [PDF]

, 2018
We present in this paper lightning current measurements and LMA (Lightning Mapping Array) data associated with upward flashes observed at the Sàntis Tower during Summer 2017.
Sunjerga, A., A. Mostajabi, Rubinstein, Marcos, Rubinstein, M., D. Romero, Rachidi, Farhad, G. Diendorfer, J. Montanya, Sunjerga, Antonio, N. Pineda, O. A. Van der Velde, M. Rubinstein, Montanya, Joan, Diendorfer, Gergard, Romero Durán, David, Van der Velde, Oscar Arnoud, Azadifar, M., Pineda, Nicolau, Romero, David, Mostajabi, A., F. Rachidi, M. Azadifar, Pineda Rüegg, Nicolau, Van der Velde, Oscar, Mostajabi, Amirhossein, Azadifar, Mohammad, Diendorfer, Gerhard, A. Sunjerga   +27 more
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The Similarity of the Action of Franklin and ESE Lightning Rods under Natural Conditions

Atmosphere, 2018
In the lightning rods categorized as Early Streamer Emission (ESE) types, an intermittent voltage impulse is applied to the lightning rod to modulate the electric field at its tip in an attempt to speed up the initiation of a connecting leader from the ...
Vernon Cooray
doaj   +1 more source

Biotic and abiotic regulation of lightning fire initiation in the mixedwood boreal forest

, 2006
Lighting, fire is the dominant natural disturbance of the western mixedwood boreal forest of North America. We quantified the independent effects of weather and forest composition oil lightning fire initiation (a detected and recorded fire start ...
Cumming, S.G., Wein, R.W., Flannigan, M.D., Krawchuk, M.A.   +3 more
core   +1 more source

Charge structure in volcanic plumes: a comparison of plume properties predicted by an integral plume model to observations of volcanic lightning during the 2010 eruption of Eyjafjallajökull, Iceland [PDF]

, 2014
Observations of volcanic lightning made using a lightning mapping array during the 2010 eruption of Eyjafjallajökull allow the trajectory and growth of the volcanic plume to be determined.
Sonja A. Behnke, Woodhouse, Mark J., Mark J. Woodhouse, Behnke, Sonja A.   +3 more
core   +1 more source

Observation of the First Stepping Process of Three Winter Lightning Discharges

Geophysical Research Letters
Using three different lightning observation systems, we have observed the first stepping processes of three lightning discharges with unprecedented details.
Qingliu Yang, Daohong Wang, Junchen Yang, Ting Wu   +3 more
doaj   +1 more source

The influence of meteorological conditions on upward lightning initiation at the Gaisberg Tower

, 2014
Meteorological parameters associated with the initiation of upward lightning discharges from a tall tower were investigated. The parameters, including temperature, wind speed, air pressure, and relative humidity, were measured at the Gaisberg Tower top ...
Diendorfer, G., Hannes Pichler, Gerhard Diendorfer, Helin Zhou, Martin Mair, Pichler, H., Zhou, H, Mair, M., Rajeev Thottappillil, Thottappillil, Rajeev,   +9 more
core   +1 more source

A fractal model for the lightning induced current on a transmission line [PDF]

, 1997
This article presents a model of a tortuous lightning channel, and a study of the consequent electromagnetic coupling to a transmission line. We analyse the fractal dimension of the induced current on the line, compared with the fractal dimension of the ...
Vecchi, Giuseppe, Salio, S., Canavero, Salio S., Salio, Vecchi, Canavero, Flavio   +6 more
core   +1 more source

Modeling the Probability of Dry Lightning‐Induced Wildfires in Tasmania: A Machine Learning Approach

Geophysical Research Letters
Dry lightning is a prevalent episodic natural ignition source for wildfires, particularly in remote regions where such fires can escalate into uncontrollable events, burning extensive areas.
Amila M. K. Wickramasinghe, Matthias M. Boer, Calum X. Cunningham, Rachael H. Nolan, David M. J. S. Bowman, Grant J. Williamson   +5 more
doaj   +1 more source