High-Current Lightning Discharges in Winter

被引：3
|
作者：
Ishii, Masaru [1 ]
Saito, Mikihisa [1 ]
Fujii, Fumiyuki [1 ]
Matsui, Micrihiro
Itamoto, Naoki
机构：
[1] Univ Tokyo, Inst Ind Sci, Tokyo 1138654, Japan
来源：
ELECTRICAL ENGINEERING IN JAPAN | 2010年 / 170卷 / 01期
关键词：
lightning; lightning discharge; upward lightning; winter lightning; lightning location; lightning current; LEMP; back flashover;
D O I：
10.1002/eej.20874
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Lightning electric-field waveforms related to power line faults in winter have been identified. Most of those waveforms appear to be associated with upward lightning discharges with absolute peak currents of over 100 kA. They are quite different from common return-stroke waveforms, and the lightning discharges which produce these characteristic waveforms are called GC (Ground to Cloud) flashes. These high-current lightning discharges are distributed around the coastline in different ways depending on their polarities. The spatial distributions of high-current lightning discharges around Japan are also investigated. It is revealed that the region of Honshu Island along the coastline of the Sea of Japan belongs to the area in which the density of high-current lightning flashes is the highest in Japan through the year. (C) 2009 Wiley Periodicals, Inc. Electr Eng Jpn, 170(1): 8-15, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20874
引用
收藏
页码：8 / 15
页数：8
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