Snow Disaster Risk Assessment Based on Fuzzy Comprehensive Evaluation

摘要：

The Inner Mongolian pastoral area in China was selected as a case area in this paper. Firstly, the snow disaster risk assessment index system was established. When building the snow disaster risk assessment index system, disaster inducing factor, disaster-formative environment and disaster-affected body were comprehensively considered. Secondly, the factor weights were determined with fuzzy Borda number method. When the membership was determined, fuzzy Borda number was sequentially calculated through fuzzy frequency statistic, and then the factor weights were obtained through normalization process of fuzzy Borda number. Thirdly, the snow disaster risk assessment model based on fuzzy comprehensive evaluation was established. Considering the random of snow disasters occurrence and the fuzziness of snow disaster risk assessment, fuzzy math method was introduced in the study of snow disaster risk assessment. Finally, statistical validation was made with fuzzy approach degree method. Case study showed that the result of risk assessment from this model was basically consistent with the actual situation, indicating the high accuracy.

关键词： snow disaster:risk assessment:fuzzy comprehensive evaluation:fuzzy math

作者: Chao Lv Huili Gong Bo Wang Chao Lv

作者单位: College of Resource Environment and Tourism Capital Normal University Beijing,China Computer Information Center Beijing Institute of Fashion Technology Beijing,China

会议类型: 国际会议

会议名称: The 18th International Conference on Geoinformatics(第18届国际地理信息科学与技术大会 Geoinformatics 2010)

会议地点: 北京

会议语种:英文

页码: 1782-1787

在线出版日期: 2010-06-18（万方平台首次上网日期，不代表论文的发表时间）