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Characteristics of Lightning Electromagnetic Fields Produced by Antarctica Storms

Cited 2 time in wos
Cited 3 time in scopus
Title
Characteristics of Lightning Electromagnetic Fields Produced by Antarctica Storms
Other Titles
남극 스톰에 의해 발생한 번개의 전자기장 특성
Authors
Sulaiman Ali Mohammad
Mohd Riduan Ahmad
Mardina Abdullah
박상종
Shamsul Ammar Shamsul Baharin
Norbayah Yusop
Gaopeng Lu
Vernon Cooray
Keywords
antarcticacloud-to-groundelectromagneticlightningreturn stroke
Issue Date
2022
Citation
Sulaiman Ali Mohammad, et al. 2022. "Characteristics of Lightning Electromagnetic Fields Produced by Antarctica Storms". ATMOSPHERE, 13(4): 588-604.
Abstract
This paper presents the temporal characteristics of electromagnetic fields produced by cloud-to-ground (CG) lightning flashes associated with Antarctica storms. A total of 51 positive CG (+CG) and 103 negative CG (-CG) flashes have been recorded by a magnetic direction finder (MDF) sensor in King Sejong Station, King George Island. In total, 47 positive and 107 negative return strokes were located, ranges from 32 to 569 km. All CG flashes were detected to occur over the ocean. The return strokes characteristics include the observations of slow front, fast rising, rise time, and pulse duration with geometric mean values of 3.2, 0.53, 3.21, 13.12, and 67.09 s for +CG flashes, while 3.9, 0.57, 3.72, 20.75, and 69.86 s for -CG flashes, respectively. Additionally, the average peak currents of +CG and -CG flashes were 4.13 kA and 3.14 kA, respectively. The temporal characteristics of the return strokes of Antarctica storms are comparable to other geographical regions. The smaller peak currents might be due to small magnitude of Antarctica cloud charges when compared to other geographical regions.
URI
https://repository.kopri.re.kr/handle/201206/13506
DOI
http://dx.doi.org/10.3390/atmos13040588
Type
Article
Station
King Sejong Station
Indexed
SCIE
Appears in Collections  
2022-2022, Understanding of Antarctic climate and environment and assessments of global influence (22-22) / Kim, Seong-Joong (PE22030)
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