[1]韦增岸,何飞,邹光源,等.广西冰雹云闪电变化特征分析及其防雹应用[J].气象研究与应用,2015,36(04):38-44.
　Wei zeng-an,He fei,Zou guang-yuan,et al.Characteristic analysis on lightning variation of hail cloud and its application in artificial hail suppression in Guangxi[J].Journal of Meteorological Research and Application,2015,36(04):38-44.
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广西冰雹云闪电变化特征分析及其防雹应用()
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气象研究与应用[ISSN:1673-8411/CN:45-1356/P]

卷:
第36卷
期数:
2015年04期
页码:
38-44
栏目:
天气气候
出版日期:
2015-12-23

文章信息/Info

Title:
Characteristic analysis on lightning variation of hail cloud and its application in artificial hail suppression in Guangxi
作者:
韦增岸;  何飞;  邹光源;  张正国;  程鹏;  刘丽君
广西人工影响天气办公室, 南宁 530022
Author(s):
Wei zeng-an;  He fei;  Zou guang-yuan;  Zhang Zheng-guo;  Cheng peng;  Liu li-jun
Guangxi Weather Modification Office, Nanning Guangxi, 530022
关键词:
闪电; 闪电变化特征; 冰雹云; 人工防雹; 广西
Keywords:
lightning; lightning variation characteristics; hail cloud; artificial hail suppression; Guangxi
分类号:
P458.1+21.2
摘要:
利用广西2006-2011年4-6月17个降雹样本资料和以降雹点为中心半径50km范围内闪电监测定位网探测到的所有闪电数据对广西冰雹云闪电变化特征进行分析,结果显示:广西地区冰雹发生前的短时间内负闪频数远大于正闪频数,正负闪强度的比值大多都在1.5以上,而正负闪陡度的比值相差不大,5min闪电频次峰值都在5次以上,降雹前峰值出现明显跃增,降雹出现在闪电密度最大中心的下风方右侧,闪电变化分析结果在广西地区人工防雹作业中有一定的指导作用。
Abstract:
Based on 17 hail samples gathered in Guangxi in 2006-2011 between April and June and all the lighting data, which were detected by lightning monitoring network with hail dropping points centered within a 50 km radius, the characteristics of lighting variation of cloud hail were analyzed. The results show that:before the hail occurring, the negative lightning frequency is much higher than the positive one in a short time. The most intensity ratios of positive to negative lightning are above 1.5, while the difference in the steepness ratios are not significant. The peak values of lightning frequency are all more than 5 times within 5-minute, and increase suddenly before the hail falling. Hail appears on the right side of downwind of the strongest lightning center. The above findings of the lightning characteristics are meaningful for artificial hail suppression in Guangxi.

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备注/Memo

备注/Memo:
收稿日期:2014-10-18。
作者简介:韦增岸(1986-),本科,工程师,从事人工暴响天气业务工作。
更新日期/Last Update: 1900-01-01