globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2016JD026229
论文题名:
Influence of the Canton Tower on the cloud-to-ground lightning in its vicinity
作者: Zhang C.; Lu W.; Chen L.; Qi Q.; Ma Y.; Yao W.; Zhang Y.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2017
卷: 122, 期:11
起始页码: 5943
结束页码: 5954
语种: 英语
英文关键词: Canton Tower ; CG lightning ; immediate vicinity ; influence
英文摘要: This paper analyzed the influence of the Canton Tower on cloud-to-ground lightning in its vicinity based on the data obtained by Lightning Location System (LLS) of the Guangdong Power Grid Corporation from 1999 to 2015. The LLS data obtained before (1999–2005) and after (2010–2015) the erection of the Canton Tower were compared. The flash/stroke density showed a significant increase in the immediate vicinity around the Canton Tower within a radius of 1 km and a clear decrease in the annular vicinity with a radius from 1 km to 4 km. The arithmetic mean and median LLS-inferred peak current of strokes that occurred in 1 km radius area around the Canton Tower exhibited a significant increase, while that of the strokes that occurred beyond 1 km did not show a clear change. The percentage of negative flashes (ratio of negative flashes to total flashes) showed a slight increase in the immediate vicinity around the Canton Tower, which could be caused by the upward lightning (often negative) initiated from the tower. Due to the existence of the Canton Tower, the lightning multiplicity presented a decreasing trend to some extent within 4 km radius around the tower compared with the arithmetic mean value within 10 km radius. It is speculated that the Canton Tower induced lots of upward flashes and attracted some downward flashes around it within several kilometers radius to itself. ©2017. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62642
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, China; Laboratory of Lightning Physics and Protection Engineering, Chinese Academy of Meteorological Sciences, Beijing, China; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing, China; Institute of Tropical and Marine Meteorology, China Meteorological Administration, Guangzhou, China

Recommended Citation:
Zhang C.,Lu W.,Chen L.,et al. Influence of the Canton Tower on the cloud-to-ground lightning in its vicinity[J]. Journal of Geophysical Research: Atmospheres,2017-01-01,122(11)
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