摘要
基于灰色关联分析方法,考虑灾情因子指标之间的影响,将加权灰色关联度作为评价准则建立灾情评估模型.利用1990-2007年(除2004年)17年对华南影响较大的热带气旋灾害资料,选取死亡人数、受灾人数、农田受灾面积、房屋倒塌间数和直接经济损失5个指标对灾情进行评估.计算结果表明:基于灰色关联度确定灾情因子指标权重的方法可行有效;使用该方法所得的评价结果与实际情况基本吻合.
Based on gray relational analysis,considering the impact of the disaster factor indicators,weighted regarding gray relational grade as the evaluation of prospective,we establish a disaster assessment model.Using the statistical tropical cyclone data on the South China from 1990 to 2007（except 2004）,we select the number of deaths,the number of disaster-ridden people,crop disaster-stricken areas,the number of the collapsed houses and the direct economic loss to assess the disaster.The results show that： the method based on gray correlation degree to determine the index weight of the disaster factor,is feasible and effective.Through different methods of calculation and comparison,we find that the evaluation results from our proposed method agree well with the actual situation.
出处
《广西师范学院学报（自然科学版）》
2012年第1期45-50,共6页
Journal of Guangxi Teachers Education University(Natural Science Edition)
基金
广西科学研究与技术开发项目(桂科攻0993002-4)
广西教育厅科研项目(201106LX322)
广西师范学院教师前期基础研究基金(2010年立项)
关键词
灰色关联分析
权重
热带气旋
灾情评估
gray relational analysis
weight
tropical cyclone
damage evaluation
