灾害学2013，Vol.28Issue(2)：172-176,5.
基于灰色关联度的冰川泥石流危险性评价因子分析
Analysis on Risk Assessment Factors of Glacial Debris Flow Based on Grey Correlation Degree
摘要
Abstract
Linzhi prefecture is one of the most serious geological disasters regions in Tibet, and the glacial debris flow is the most serious one among the disasters. In recent years, under the influence of the global warming, the melting rate of glacier has accelerated and the glacial debris flows occur frequently, which cause serious economic loss and social harm. According to the analysis of risk factors to the glacial debris flow, considering 10 influence factors, 6 typical debris flow torrents are selected for the research. Gray'correlation degree method is applied to select such 7 main influence factors as the highest daily temperature, the torrent catchment area, a maximum runout of debris flow, the main torrent length, the biggest altitude difference of torrent catchments, and the glacier area. The values of weight are determined next, which provide a more objective and more scientific and reasonable assessment basis for risk assessment system of glacial debris flow.关键词
冰川泥石流/灰色关联度/因子筛选/权重确定/西藏林芝地区Key words
glacial debris flow/ grey correlation degree/ factors selection/ weight definition/ Linzhi prefecture in Tibet分类
天文与地球科学引用本文复制引用
黄伟,唐川,刘洋..基于灰色关联度的冰川泥石流危险性评价因子分析[J].灾害学,2013,28(2):172-176,5.基金项目
国土资源部青藏高原东南部地质灾害链与防灾减灾对策研究(201111024) （201111024）
