| DOI: | 10.1002/2014GL061963
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| 论文题名: | A low-frequency near-field interferometric-TOA 3-D Lightning Mapping Array |
| 作者: | Lyu F.; Cummer S.A.; Solanki R.; Weinert J.; McTague L.; Katko A.; Barrett J.; Zigoneanu L.; Xie Y.; Wang W.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9568
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| EISSN: | 1944-9299
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| 出版年: | 2014
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| 卷: | 41, 期:22 | | 起始页码: | 7777
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| 结束页码: | 7784
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| 语种: | 英语
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| 英文关键词: | interferometer/TOA
; LF emission
; lightning discharges
; lightning imaging
; stepped and dart leaders
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| Scopus关键词: | Interferometry
; Lightning
; Mapping
; Cloud-to-ground flash
; Cross correlation techniques
; Lightning discharge
; Lightning flashes
; Lightning location systems
; Lightning mapping array
; stepped and dart leaders
; Time of arrival (TOA)
; Clouds
; array
; frequency analysis
; interferometry
; lightning
; measurement method
; resolution
; three-dimensional modeling
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| 英文摘要: | We report on the development of an easily deployable LF near-field interferometric-time of arrival (TOA) 3-D Lightning Mapping Array applied to imaging of entire lightning flashes. An interferometric cross-correlation technique is applied in our system to compute windowed two-sensor time differences with submicrosecond time resolution before TOA is used for source location. Compared to previously reported LF lightning location systems, our system captures many more LF sources. This is due mainly to the improved mapping of continuous lightning processes by using this type of hybrid interferometry/TOA processing method. We show with five station measurements that the array detects and maps different lightning processes, such as stepped and dart leaders, during both in-cloud and cloud-to-ground flashes. Lightning images mapped by our LF system are remarkably similar to those created by VHF mapping systems, which may suggest some special links between LF and VHF emission during lightning processes. © 2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84923357521&doi=10.1002%2f2014GL061963&partnerID=40&md5=ec96ef0ab273f59f3f6f5d723d785b2f
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/6832
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Electrical and Computer Engineering Department, Duke University, Durham, NC, United States
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| Recommended Citation: | |
Lyu F.,Cummer S.A.,Solanki R.,et al. A low-frequency near-field interferometric-TOA 3-D Lightning Mapping Array[J]. Geophysical Research Letters,2014-01-01,41(22).
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