黔东南凝冻气候变化特征及灾害指数评估分析

Variation Characteristics of Freezing Climate and Evaluation Analysis of Disaster Index in Southeast Guizhou

使用1961～2008年1～2月黔东南地区16个地面气象观测资料,对黔东南凝冻时空分布和凝冻灾害指数进行诊断分析。采用层次和回归方法对凝冻灾害指数进行了定量评估分析结果表明,黔东南特重级凝冻灾害有2年,重级凝冻灾害主要分布在西部的丹寨、麻江、凯里、黄平和东部的三穗、黎平、锦屏;2008年黔东南有4个重级凝冻灾害区域,为东北部、东部、南部的月亮山附近、西部苗岭山区等区域。

Based on the observation data from 16 weather observation stations of southeast Guizhou in January and February from 1961 to 2008, the freezing temporal and spatial distribution and freezing disaster index in southwest Guizhou were diagnosed analyzed, The freezing disaster index was quantitatively evaluated by using the methods of herpaey and regression. The resuit showed that the heavy freezing disasters were mainly distributed in Danzhai, Majiang, Kaili, Huangping in the west regions and Sansui, Liping and Jinping in the east regions. There were four heavy freezing disaster regions in southeast Guizhou in 2008,including northeast region, east region, surrounding areas around Yueliang Mountain in south regions and Miaoling mountain area in west areas and other areas.