Triggered lightning
نویسندگان
چکیده
منابع مشابه
Rocket - Triggered Lightning Energetic Radiation Produced During
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...
متن کاملSprites triggered by negative lightning discharges
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...
متن کاملCharacteristics of Triggered Lightning Observed in Brazil
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...
متن کاملOxide reduction during triggered-lightning fulgurite formation
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 ...
متن کاملInsights into the ground attachment process of natural lightning gained from an unusual triggered-lightning stroke
[1] We present measured electric and magnetic field and current derivatives from an unusual triggered-lightning stroke that was initiated by a dart-stepped leader and that involved an upward connecting leader. The initial rising portion of the current (integrated dI/dt) waveform is composed of a ‘‘slow front’’ rising to 20 kA in 2.2 ms, followed by a ‘‘fast transition’’ from 20 to 27 kA in 0.2 ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature Geoscience
سال: 2011
ISSN: 1752-0894,1752-0908
DOI: 10.1038/ngeo1103