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A low-frequency near-field interferometric-TOA 3-D Lightning Mapping Array

Publication ,  Journal Article
Lyu, F; Cummer, SA; Solanki, R; Weinert, J; McTague, L; Katko, A; Barrett, J; Zigoneanu, L; Xie, Y; Wang, W
Published in: Geophysical Research Letters
November 28, 2014

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.

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Published In

Geophysical Research Letters

DOI

EISSN

1944-8007

ISSN

0094-8276

Publication Date

November 28, 2014

Volume

41

Issue

22

Start / End Page

7777 / 7784

Related Subject Headings

  • Meteorology & Atmospheric Sciences
 

Citation

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MLA
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Lyu, F., Cummer, S. A., Solanki, R., Weinert, J., McTague, L., Katko, A., … Wang, W. (2014). A low-frequency near-field interferometric-TOA 3-D Lightning Mapping Array. Geophysical Research Letters, 41(22), 7777–7784. https://doi.org/10.1002/2014GL061963
Lyu, F., S. A. Cummer, R. Solanki, J. Weinert, L. McTague, A. Katko, J. Barrett, L. Zigoneanu, Y. Xie, and W. Wang. “A low-frequency near-field interferometric-TOA 3-D Lightning Mapping Array.” Geophysical Research Letters 41, no. 22 (November 28, 2014): 7777–84. https://doi.org/10.1002/2014GL061963.
Lyu F, Cummer SA, Solanki R, Weinert J, McTague L, Katko A, et al. A low-frequency near-field interferometric-TOA 3-D Lightning Mapping Array. Geophysical Research Letters. 2014 Nov 28;41(22):7777–84.
Lyu, F., et al. “A low-frequency near-field interferometric-TOA 3-D Lightning Mapping Array.” Geophysical Research Letters, vol. 41, no. 22, Nov. 2014, pp. 7777–84. Scopus, doi:10.1002/2014GL061963.
Lyu F, Cummer SA, Solanki R, Weinert J, McTague L, Katko A, Barrett J, Zigoneanu L, Xie Y, Wang W. A low-frequency near-field interferometric-TOA 3-D Lightning Mapping Array. Geophysical Research Letters. 2014 Nov 28;41(22):7777–7784.
Journal cover image

Published In

Geophysical Research Letters

DOI

EISSN

1944-8007

ISSN

0094-8276

Publication Date

November 28, 2014

Volume

41

Issue

22

Start / End Page

7777 / 7784

Related Subject Headings

  • Meteorology & Atmospheric Sciences