气象2012，Vol.38Issue(8)：1004-1011,8.
北京地区雷电灾害风险评估方法与应用
Lightning Risk Assessment and Zoning in Beijing Based on the Technology of Spatial Grids
摘要
Abstract
The study primarily depends upon the climate data to analyze the climatic characteristics related to lightning activity, and the data collected by the lightning location finder is also required to denote the cloud to ground lightning density of each grid cell. According to its degree of exposure to lightning and the characteristics of lightning protection and avoidance, the potential lightning-striking areas are classified as the building, the outdoor area under the building canopy and the open field area. The expected lightning stroke times （frequency） on each class of lightning-striking area have been worked out properly with the parameters of CG flash density, equivalent intercepting area to lightning, lightning protecting capability and position factor in these areas. Eventually the risk assessment has been carried with the formula of risk = frequency × population. The assessment reveals that with dense population and aggregated belongings, the central urban district is the highest risk zoning of lightning, as well as its high flash density, while the risk of the suburbs and rural areas are not high. The conclusion is demonstrated by the distribution of lightning disaster event occurring in Beijing from 2004 to 2008, and the result of the risk assessment iscorrespondent to the actual trend and situation.关键词
闪电密度/雷电灾害/风险评估/空间网格Key words
flash density/lightning disaster/risk assessment/grids分类
天文与地球科学引用本文复制引用
扈海波,李京校,潘进军..北京地区雷电灾害风险评估方法与应用[J].气象,2012,38(8):1004-1011,8.基金项目
北京市自然科学基金（9102009）、中国气象局关键技术项目（CMAGJ2011M03）和国家自然科学基金（41175099）项目共同资助 （）
