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文摘
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5·12汶川地震诱发了大量的次生山地灾害,主要包括崩塌、滑坡、堰塞湖和泥石流等.大型滑坡堵塞河道后形成的堰塞湖则是震后最为严重的次生灾害.本文利用多源遥感数据获取四川5·12汶川地震诱发堰塞体信息,查明了灾区主要堰塞体的分布数量及其分布规律,同时获取了形成堰塞体的滑坡体的部分信息.研究表明,主灾区堰塞体总数37个,其分布与地震断裂带一致;73%的堰塞体呈串珠状分布;80%的堰塞体发生在河流急拐弯区域. |
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其他语种文摘
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The earthquake of Wenchuan on May 12 had led to large quantities of secondary mountain disasters such as rock fall,landslide,dammed lake as well as debris flow.The dammed lakes which were formed after the river channel had been dammed by large scale landslide were the most severe secondary disasters after the earthquake.Data of multi-platform remote sensing were acquired to obtain the information of the damming objects induced by the earthquake of Wenchuan while the quantity and distribution of the main damming objects in disaster area were investigated.At the same time,some information of the landslide mass which formed the damming objects was also obtained.The study shows that there were 37 damming objects in the main disaster area and the distribution of the damming objects was consistent with the distribution of the earthquake fault zone;73% of the damming objects had a moniliform distribution while 80% of the damming objects took place at the sharp turning areas of the river channel. |
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来源
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山地学报
,2008,26(3):257-262 【核心库】
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关键词
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多源遥感
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汶川地震
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堰塞体
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堰塞湖
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调查
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地址
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1.
中国科学院, 山地灾害与地表过程中科院重点实验室, 四川, 成都, 610041
2.
中国科学院成都山地灾害与环境研究所, 四川, 成都, 610041
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1008-2786 |
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学科
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地球物理学;大气科学(气象学);地质学;自动化技术、计算机技术 |
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基金
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中国科学院水利部成都山地灾害与环境研究所基金
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文献收藏号
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CSCD:3333518
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1.
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被引
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2.
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被引
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被引
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4.
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被引
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5.
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被引
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