globalchange  > 科学计划与规划
DOI: 10.1002/2016GL070737
论文题名:
Mapping lightning in the sky with a mini array
作者: Füllekrug M.; Liu Z.; Koh K.; Mezentsev A.; Pedeboy S.; Soula S.; Enno S.-E.; Sugier J.; Rycroft M.J.
刊名: Geophysical Research Letters
ISSN: 0094-8517
EISSN: 1944-8248
出版年: 2016
卷: 43, 期:19
起始页码: 10448
结束页码: 10454
语种: 英语
英文关键词: array analysis ; atmospheric and space electricity ; electromagnetic noise and interference ; lightning discharges ; wave propagation
Scopus关键词: Clouds ; Electromagnetic waves ; Lightning ; Mapping ; Wave propagation ; Array analysis ; Electromagnetic noise ; Extraordinary waves ; Lightning detection ; Lightning discharge ; Selection criteria ; Very low frequency ; Wave propagation conditions ; Electric discharges
英文摘要: Mini arrays are commonly used for infrasonic and seismic studies. Here we report for the first time the detection and mapping of distant lightning discharges in the sky with a mini array. The array has a baseline to wavelength ratio ∼4.2·10−2 to record very low frequency electromagnetic waves from 2 to 18 kHz. It is found that the mini array detects ∼69 lightning pulses per second from cloud-to-ground and in-cloud discharges, even though the parent thunderstorms are ∼900–1100 km away and a rigorous selection criterion based on the quality of the wavefront across the array is used. In particular, lightning pulses that exhibit a clockwise phase progression are found at larger elevation angles in the sky as the result of a birefringent subionospheric wave propagation attributed to ordinary and extraordinary waves. These results imply that long range lightning detection networks might benefit from an exploration of the wave propagation conditions with mini arrays. ©2016. The Authors.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84992462845&doi=10.1002%2f2016GL070737&partnerID=40&md5=1030d1ff37c00361227649000ba3bb7d
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9480
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: Department of Electronic and Electrical Engineering, Centre for Space, Atmospheric and Oceanic Science, University of Bath, Bath, United Kingdom

Recommended Citation:
Füllekrug M.,Liu Z.,Koh K.,et al. Mapping lightning in the sky with a mini array[J]. Geophysical Research Letters,2016-01-01,43(19).
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