摘要
西藏自治区湖泊星罗棋布,在高山极高山地区分布大量冰湖,受各种因素的影响,有时会产生冰湖溃决并形成灾害。本文根据最新TM遥感影像对西藏自治区洛扎县283个冰湖进行了初步评价。依据冰湖类型、规模、后方现代冰川与冰湖的距离及冰湖离居民地、公路等设施的距离等,将冰湖溃决分为高危险度、中危险度及低危险度。并针对高危险度的冰湖提出防护对策。
Lakes are spread all over the place in Tibet, and many ice lakes are located in alps or extra-high mountain areas. Affected by this and that factor, some ice lakes will burst the banks and cause disasters. Based on the newest TM images, 283 ice lakes of Luozha County in Tibet were initially assessed in this paper. According to their types, scale, distance to modern glacier behind, and distance to residential area and roads, the bursting hazards of the ice lakes were divided into high hazardous, medium hazardous and low hazardous. Finally measures were raised aiming at the high hazardous ice lakes.
出处
《山地学报》
CSCD
2003年第B12期128-132,共5页
Mountain Research
关键词
冰湖
溃决
评价
ice lake
burst
assessment
