近50年武陟县雷暴气候特征及雷灾分析

利用武陟县1960～2009年的雷暴观测资料、雷灾典型实例资料,通过数理统计方法,分析武陟县雷暴的气候特征、雷灾的年变化特征和行业特征,以期能对当地政府相关部门提供参考,为当地防雷减灾工作提供气象依据。分析结果表明:武陟县雷电活动的时间有很明显的时间分布特征,雷暴多集中出现在每年的6～8月,以7月出现最多,11、12、1月出现最少,以持续时间为2小时内的短时性雷暴天气为主;在各主要行业雷灾受损设施中,广播系统遭受雷灾造成的直接经济损失最大;家用电器遭受雷灾次数最多,其直接经济损失次之,近5年雷灾损失有明显快速上升趋势。

Analysis on Thunderstorm Characteristics and Thunderstroke of Wuzhi County in Recent Fifty Years

Using thunderstorm observational data,typical instance data of thunderstroke of Wuzhi County in 1960～2009,the research analyzed the thunderstorm characteristics,annual change characteristics of thunderstroke and industrial characteristics in Wuzhi County with mathematical statistics,and given the evidence for local lighting protection deduction so as to be references for relevant government departments decisions.Analysis results indicate that the thunder and lighting in Wuzhi County has obvious time distribution characteristic.The thunderstorm mainly appears from June to August,and especially in July;in November,December and January,there is the least thunderstorm and mainly short-time thunderstorm weather lasting within 2 hours;among thunderstroke-damaged facilities in various major industries,broadcasting system suffers the greatest direct economic loss caused by thunderstroke and followed the household appliances but with significant frequency.The loss caused by thunderstroke is increasing dramatically in the last five years.