Triggered lightning strokes originating in clear air
نویسندگان
چکیده
منابع مشابه
A comparison of channel-base currents and optical signals for rocket-triggered lightning strokes
A comparative analysis has been performed of the channel-base current and light waveforms for four rocket-triggered lightning strokes. It has been found that the current and light signals at the bottom of the channel exhibit a linear relationship (direct proportionality) in their rising portions. However, just after the peaks the linearity disappears, and the light signals usually decrease fast...
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Several parameters of return-stroke current waveforms of triggered lightning are discussed and compared to results obtained in other places. The parameters presented in this paper, obtained for the first time in Brazil, are crucial in the lightning protection research. All these measurements were done with a sample rate of 100 ns, enabling us to study rise and decay times of the waveforms. Imag...
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www.sciencemag.org (this information is current as of July 17, 2008 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/299/5607/694 version of this article at: including high-resolution figures, can be found in the online Updated information and services, http://www.sciencemag.org/cgi/content/full/299/5607/694/DC1 can be found a...
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High altitude air breakdown, manifested as “red sprites,” is reported in close association with negative cloudto-ground lightning (−CG) on at least two occasions above an unusual storm on August 29, 1998. Data from high speed photometry, low-light-level video, and receivers of lightning electromagnetic signatures in the frequency range 10 Hz to 20 kHz are used to establish the association and i...
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In this study triggered-lightning induced fulgurites were formed in 99.9% pure binary oxides of manganese (MnO) and nickel (NiO) in order to study oxide reduction mechanisms. The fulgurite formation process involved packing the oxide in PVC holders and using the standard rocket-and-wire technique to trigger a lightning strike through the oxide at the International Center for Lightning Research ...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research
سال: 1980
ISSN: 0148-0227
DOI: 10.1029/jc085ic05p02861