Discussion on Common Problems in Risk Assessment of Lightning Disaster

• 作者: Deng Yi Jiang Xianhong Luo Mingzuo Shi Lei
• 来源期刊: 气象与环境研究：英文版
• 学科: 地球科学
• 关键词: 灾害风险评估 雷电灾害 密度公式 地电阻率 效果参数 闪光灯 计算 收集区
• 年，卷（期）: 2014,（9）
• 页码范围: 28-32
• 页数: 5页
• 分类号: P427.32

摘要

The problems in calculating parameters of equivalent collection area,earth resistivity and lightning protection category as well as their effects on lightning disaster risk assessment were analyzed,and practical examples proved the effects of those differences on lightning protection identification,intercept efficiency calculation in evaluating lightning disaster risk. In the meantime,several new concepts,such as the height of buildings for lightning protection were defined,and a fixed radius value was set to the ground flash density for calculation,establishing the ground flash density formula to solve the problems in parameter calculation,which would be beneficial to promote the standardization of lightning disaster risk assessment.