Landslide hazard assessment in the Three Gorges area of the Yangtze river using ASTER imagery: Zigui–Badong
Landslide hazard assessment in the Three Gorges area of the Yangtze river using ASTER imagery: Zigui–Badong
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DOI：
10.1016/j.geomorph.2003.12.004
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发表时间：
2004-07
期刊：
影响因子：
3.9
通讯作者：
Jianguo Liu;P. Mason;N. Clerici;S. Chen;A. M. Davis;F. Miao;H. Deng;Liang Liang-Liang
中科院分区：
文献类型：
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作者：
Jianguo Liu;P. Mason;N. Clerici;S. Chen;A. M. Davis;F. Miao;H. Deng;Liang Liang-Liang
本文报告了中国三峡地区滑坡灾害的区域评估，该评估基于 Terra-1 卫星先进星载热发射辐射计 (ASTER) 图像数据，包括立体图像衍生的数字高程模型 (DEM) 和多光谱反射图像和热图像，并结合有限的现场调查。三峡大坝和水库工程之所以受到国际关注，不仅因为其在水力发电和防洪方面的巨大潜力，而且还因为其对环境和社会经济的潜在有害影响。该地区最重要和最广泛的自然灾害是边坡失稳。一个简单的多变量消除和表征模型，采用几何平均值和布尔决策规则，已应用于多标准图像数据集，将该区域分类为一系列潜在的滑坡危险级别，并以地图形式呈现。这里提供的结果显示，沿河所有主要居住区及其周围地区的危险程度很高。为了提供可靠的地面控制，我们进行了有限的实地考察，本文的结果显示与该实地证据具有良好的相关性。
This paper reports a regional assessment of landslide hazard in the Three Gorges area, China, based on Terra-1 satellite Advanced Spaceborne Thermal Emission Radiometer (ASTER) imagery data, including a stereo image-derived Digital Elevation Model (DEM) and multi-spectral reflective and thermal imagery, in combination with limited field investigation. The Three Gorges dam and reservoir project has gained international attention, not only for its great potential for hydro-electrical power generation and flood control, but also for its potentially harmful effects on the environment and socio-economy. The most significant and widespread natural hazard in the region is slope instability. A simple, multi-variable elimination and characterisation model, employing geometric mean and Boolean decision rules, has been applied to a multi-criterion image dataset to categorise the area into a series of potential landslide hazard levels, which are presented in map form. The results presented here show high levels of hazard in and around all the main inhabited areas along the river. Limited fieldwork has been conducted to provide reliable ground control and the results of this paper show good correlation with this field evidence.