基于Copula函数的地震灾害损失分布研究  

Research on the Distribution of Earthquake Disaster Losses Based on the Copula Function

作　　者：陈晓伟 CHEN Xiaowei(Guizhou University of Finance and Economics,Guiyang,Guizhou Province,550025 China)

机构地区：[1]贵州财经大学,贵州贵阳550025

出　　处：《科技资讯》2023年第23期190-195,共6页Science & Technology Information

摘　　要：地震灾害的发生不仅威胁人民的生命安全,同时还伴随着巨额的经济损失。我国是地震多发国家,研究地震所造成的直接经济损失与人员伤亡相依性、刻画地震的损失情况有利于灾后重建工作。通过核密度估计方法对我国2002—2020年发生地震的直接经济损失与人员伤亡数据的分布情况进行刻画,基于Copula函数对两者的相依性进行研究,从而找出符合我国地震灾害损失情况的分布函数,为我国灾后重建工作提供理论支持。The occurrence of earthquake disasters not only threatens the safety of people's lives,but also accompanies huge economic losses.China is a country prone to earthquakes,and studying the interdependency between the direct economic losses and casualties caused by earthquakes and characterizing the losses caused by earthquakes are beneficial for post-disaster reconstruction.The distribution of the direct economic loss and casualty data caused by earthquakes from 2002 to 2020 in China is characterized by the Kernel density estimation method,and the interdependency of the two is studied by the Copula function,so as to find the distribution function that conforms to the losses caused by earthquake disasters in China and provide theoretical support for the post-disaster reconstruction in China.

关 键 词：地震灾害 COPULA函数 核密度估计 平方欧氏距 

分 类 号：P315[天文地球—地震学]