摘要
为了对暴雨型泥石流灾害进行较为准确的实时预警,选取泥石流主要的影响因子作为评价指标,应用可拓学理论建立泥石流预警模型.根据各个评价指标的特征建立相应的关联函数并计算关联度,结合层次分析法确定指标权重,计算得到泥石流预警等级.方法为泥石流灾害预警提供了定量化的研究思路.
In this paper,a new method based on the Extenics is proposed to give out an early warning for rainfall-triggered debris flow disaster.Selecting the main factors of debris flow as evaluation index,we establish the early warning model of debris flow using the Extenics theory.According to the characteristics of each evaluation index,we design the corresponding correlation function and calculate the degree of association,combining with analytic hierarchy process（AHP） to determine index weight,and finally calculate the warning level of debris flow.The method provides quantitative research approach for debris flow disaster warning.
出处
《数学的实践与认识》
北大核心
2015年第6期133-139,共7页
Mathematics in Practice and Theory
基金
河南省科技攻关计划项目(132102210044)
河南省教育厅自然科学研究计划项目(14A520010)
关键词
泥石流灾害
预警
可拓学
定量
debris flow disaster
early warning
the Extenics
quantitative
