Observations of narrow bipolar events in East China

Observations of narrow bipolar events in East China
复制标题

华东地区狭隘两极事件观察

DOI:
10.1016/j.jastp.2009.12.002
复制
发表时间:
2010-02
影响因子:
1.9
通讯作者:
Ma, Ming
Ma, Ming
中科院分区:
地球科学4区
文献类型:
--
作者:
Zhu, Baoyou;Zhou, Helin;Tao, Shanchang;Ma, Ming

文献摘要

参考文献

被引文献

相似文献

窄双极事件(NBE)是一种独特的云内闪电放电类型。本文给出了华东地区10个负的和67个正的类地事件的观测结果。正NBE发生在平均海平面以上7- 12 km的高度,平均高度为9.5km,负NBE发生在14- 16 km的高度。这些事件的电/通道特性来自基于传输线模型的NBE脉冲波形。平均而言,一次NBE事件的峰值电流矩和电荷矩变化分别为15 kAkm和0.12Ckm。电流前沿沿沟道沿着传播的平均时间为2.2μs。本研究中NBE的沟道长度上限为510- 1060 m,放电电流幅值下限为12.5-43.2kA,最小电荷转移为0.1-0.3C。
Narrow bipolar events (NBEs) are a distinct class of intra-cloud lightning discharge. In this paper we present observations of 10 negative and 67 positive such events in East China. Positive NBEs occurred at 7–12km altitude above mean sea level (MSL) with a mean altitude of 9.5km, and negative NBEs occurred at 14–16km altitude. Electrical/channel characteristics of these events were derived from NBE pulse waveforms based on the transmission-line model. On average, the peak current moment and the charge moment change of a NBE event is 15kAkm, and 0.12Ckm, respectively. The mean time for the propagation of current front along the channel is 2.2μs. The upper limit on channel length for NBEs in this study is 510–1060m, the lower limit on discharge current amplitude is 12.5–43.2kA, and the minimum charge transfer is 0.1–0.3C.
DOI: 10.1029/2007jd008471
发表时间: 2007-07
影响因子: --
作者:
T. Hamlin;T. E. Light;X. Shao;K. Eack;J. Harlin
通讯作者: T. Hamlin;T. E. Light;X. Shao;K. Eack;J. Harlin
DOI: 10.1029/jd094id13p16255
发表时间: 1989-11
影响因子: --
作者:
J. Willett;J. Bailey;E. Krider
通讯作者: J. Willett;J. Bailey;E. Krider
DOI: 10.1029/2004gl021117
发表时间: 2004-10
影响因子: 5.2
作者:
K. Eack
通讯作者: K. Eack
DOI: 10.1175/mwr2915.1
发表时间: 2005-05
影响因子: 3.2
作者:
A. Jacobson;M. J. Heavner
通讯作者: A. Jacobson;M. J. Heavner
DOI: 10.1029/jc074i028p06899
发表时间: 1969-12
影响因子: --
作者:
M. Uman;D. Mclain
通讯作者: M. Uman;D. Mclain