1997—2006年我国雷电灾情特征
Characteristics of Lightning Exposure in China from 1997 to 2006
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摘要: 该文建立了全国雷电灾害 (简称雷灾) 数据库, 对1997—2006年气象部门收集的雷灾资料进行统计分析, 给出了我国雷电灾情的时空分布特征、受损财物情况、受伤害人员情况等。资料包括32071例雷灾事件, 其中4287例雷灾造成了4488人死亡, 4320人受伤, 估计我国每年每一百万人中大约有0.53人死于雷击, 高于美国、英国。我国雷灾多发生在东部沿海地区和南部地区, 广东省最为严重, 总计上报8770例雷灾事件, 造成772人死亡和662人受伤; 当考虑人口权重时海南省、西藏自治区的雷灾人员死伤率最高。我国雷灾全年都可以发生, 夏季占全年的65%以上, 7月最高。人员伤亡雷灾和财产损失雷灾发生在13:00— 20:00(北京时) 的分别占总数的73%和62%, 16:00为峰顶。雷灾中受伤害的农民占总死伤人数的93%, 城市人员仅占7%。统计人员伤亡雷灾中的雷击地点, 最多的发生在农田, 为32%, 其次为建构筑物, 为23%, 以下依次为开阔地、水域、树下、山地等。此外还分析了雷灾中受损行业、财物等信息。Abstract: A more complete national climatic description of lightning casualties and damages is essential to improving awareness and education concerns of this hazard. By using China Meteorological Administration (CMA) lightning accident data, lightning-related disasters, injuries, and property damages reported in China from 1997 to 2006 are summarized. Climatic characteristics of lightning casualties and damages are analyzed. The data contain 4488 deaths, 4320 injuries, and 27784 property damage cases, which show that severe casualties and economic loss are caused by lightning damage during the past ten years. The annual average number of death in China between 2004 and 2006 is 0.53 per million people, 26% more than in the United States, ten times more than in the United Kingdom. Lightning disasters in China frequently occur in eastern coastal areas and southern areas, but relatively rare in western areas. Guangdong Province has the most deaths (772), injuries (662) and damage reports (7993) from lightning, which makes it the worst damaged areas from lightning all over the country. Yunnan Province comes second with 1025 deaths and casualties from lightning damage.There are also severe deaths and casualties from lightning damage in Guizhou, Jiangxi, Guangxi, Shandong, Jiangsu, Sichuan, Hubei and Hunan provinces, whereas Tibet, Shanghai, Shanxi, Beijing, Gansu, Xinjiang, Ningxia and Tianjin rank relatively low in the list. When population is taken into account, Hainan Province has the highest casualty rate. Tibetan Autonomous Region, with its population of only over 2 million, ranks the second top in terms of casualty rate. Qinghai Province rises to the fifth, whereas Hubei, Hunan and Shandong, with large population, fall in the ranking. Lightning disaster in China may occur in any month of the year, with less damage from October to March. 65% of the year's lightning casualties and damages occur in summer, reaching a maximum in July. The diurnal variations show that 73% of the lightning casualties and 62% of the lightning damages occur between 13:00 and 20:00. The peak of lightning casualties and damages occurs at 16:00. Compared with lightning damages, lightning casualties are affected by people's life routines and habits, with more incidences during working hours in the day time.Peasants account for 93% of lightning casualties, with urban residents of 7%, which makes peasants the major population of victims. In the report with known locations for lightning victims, farmland account for 32% of the total locations as the largest category, buildings is 23%, open fields 13%, water related fields 10%, under-tree fields 8%, on telephone 6% and storage 3%, respectively. Additional information is provided about lightning victims and objects.
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表 1 我国1997-2006年上报雷电灾情概况
Table 1 The lightning casualties and damage reports in China from 1997 to 2006
表 2 1997-2006年我国各地区的雷电灾情分布
Table 2 The lightning casualties and damage reports for provinces in China from 1997 to 2006
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