主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报

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1959—2008年田阳雷暴气候统计特征

欧阳兆云;周冬梅;欧阳小娟;王春娟   

  1. 田阳县气象局,广西 田阳 533600
  • 收稿日期:2010-05-25 修回日期:2010-08-15 出版日期:2010-10-29 发布日期:2010-10-29

Characteristics of thunderstorm from 1959 to 2008 in Tianyang, Guangxi province

OUYANG Zhao-yun;ZHOU Dong-mei;OUYANG Xiao-juan;WNAG Chun-juan   

  1. Tianyang Meteorological Bureau, Tianyang 533600, China
  • Received:2010-05-25 Revised:2010-08-15 Online:2010-10-29 Published:2010-10-29

摘要: 对田阳1959—2008年雷暴资料进行回归统计,采用气候倾向率,气候趋势系数进行雷暴特征分析。结果表明:近50 a田阳年雷暴日数呈增加趋势,初雷日期明显提前,终雷日期稍有后延。逐月平均雷暴分布与月平均气温、月降水量呈同相单峰形,8月雷暴出现高峰值,9月雷暴呈锐减。雷暴夏季多于春季,秋冬季少于春季,汛期4—9月雷暴占90%。雷暴活动日分布,14—20时出现频率最高,20—08时出现频率次之,08—14时出现频率最低。研究结果可为国民经济建设和防雷工程设计、雷击风险评估及雷电灾害防御与管理工作提供科学依据。

关键词: 广西田阳, 雷暴日, 气候特征

Abstract: Based on thunderstorm data from 1959 to 2008 in Tianyang, the characteristics of thunderstorm were analyzed by climate trend rate method and climate trend coefficient method. The results show that thunderstorm day increases in the recent 50 a in Tianyang. The first thunderstorm day is ahead and the last thunderstorm day delays. Monthly characteristics of thunderstorm day are similar to those of air temperature and precipitation. Thunderstorm day is the most in August, and then decreases obviously in September. Thunderstorm day is more in summer than in spring, and less in autumn and winter than in spring. Thunderstorm day during April to September (rainy period) accounts for 90% of the total. Thunderstorm often occurs during 14:00 to 20:00, then during 20:00 to 08:00, yet seldom during 08:00 to 14:00. This study can provide references for thunderstorm and lightning protection and so on.

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