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Temporal features o...
Temporal features of different lightning events revealed from wavelet transform
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- Sharma, S R (författare)
- Uppsala universitet,Elektricitetslära
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- Cooray, Vernon (författare)
- Uppsala universitet,Elektricitetslära
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- Fernando, Mahendra (författare)
- Uppsala universitet,Elektricitetslära
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- Miranda, F J (författare)
- ept of Mathematics, Statistics and Physics, Federal University of the Valleys of Jequitinhonha e Mucuri Diamantina, Brasilien
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(creator_code:org_t)
- Elsevier BV, 2011
- 2011
- Engelska.
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Ingår i: Journal of Atmospheric and Solar-Terrestrial Physics. - : Elsevier BV. - 1364-6826 .- 1879-1824. ; 73:4, s. 507-515
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Various lightning events are analysed using wavelet transform. The events include PB pulses, stepped leaders, first return strokes, subsequent strokes associated with negative ground flashes, positive return strokes and narrow bipolar pulses. Time domain electric fields were recorded from tropical and temperate thunderstorms. PB pulses pertinent to the tropical thunderstorms are found to radiate in the average frequency range 51-739 kHz. Leaders are found to radiate in the frequency range 87-720 kHz. The energy radiated by the negative return strokes is predominant in the range 2.8-40 kHz. The energy radiated by the first subsequent strokes predominantly lies in the frequency range 4.5-55 kHz. Positive return strokes are found to radiate predominantly in the frequency range 5.5-81 kHz. Narrow bipolar pulses are found to predominantly radiate in the frequency range 58-714 kHz.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- Lightning
- Electromagnetic fields
- Wavelet transform
- Frequency spectrum
- Physics
- Fysik
- TECHNOLOGY
- TEKNIKVETENSKAP
- Teknisk fysik med inriktning mot elektricitetslära
- Engineering Science with specialization in Science of Electricity
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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