摘要
分析了灾害的双重属性:自然属性和社会属性。灾度是灾害社会属性的定量描述,论述了灾度在灾害分级中的应用。提出了灾度计算模型,该模型的影响因子包括:死亡人数、直接经济损失和受灾人数。收集了1954-2010之间的亚洲灾害,并应用灾度计算模型对收集到的资料进行了计算与分析。提出了亚洲巨灾标准:灾度大于8的灾害为亚洲巨灾。该标准具有计算简便、易于对不同灾害进行比较的特点。
This study analyzed the dual properties of disasters： the natural property and the social property. Disas- ter magnitude is a quantitative description of disasters＇ social property. This paper described the application of dis- aster magnitude in disaster classification and proposed a calculation model of disaster magnitude, which includes three influence factors： death toll, direct economic loss and disaster affected population. The disaster data from 1954 to 2010 in Asia were collected and the disaster magnitude calculation model was used to calculate and analyze the collected data. As a result, the Asian catastrophe criterion is thus determined： disasters with magnitudes greater than 8 are catastrophes. This criterion has the advantages of simplicity in calculation and convenience in comparison between different disasters.
出处
《自然灾害学报》
CSCD
北大核心
2012年第3期64-69,共6页
Journal of Natural Disasters
基金
国家自然科学基金项目(40901272)
国家科技支撑计划项目(2008BAC44B01-06
2008BAK50B03
2012BAK15B06)
关键词
灾度
灾害分级
防灾减灾
亚洲巨灾
disaster magnitude
disaster classification
disaster prevention and reduction
Asia catastrophe
