| 西藏易贡滑坡堰塞湖的卫星遥感监测方法初探 |
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| 引用本文：吕杰堂,王治华,周成虎.2002.西藏易贡滑坡堰塞湖的卫星遥感监测方法初探[J].地球学报,23(4):363-368. |
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| 基金项目:国家自然科学基金项目“地理信息系统支持下的暴雨滑坡灾害动态风险评价”(49971066) |
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| 中文摘要:利用多时相，多平台的卫星遥感数据，监测了西藏易贡滑坡发生后易贡湖的变化情况，快速获取了各时相的湖水面积；利用数字高程模型求取易贡湖各时相的水位与水量；并进行了导致溃坝的洪水的水力学计算。卫星监测和计算结果与现场调查结果基本一致。表明利用卫星遥感数据定量监测地质灾害是可行的。 |
| 中文关键词:易贡湖 卫星数据 数字高程模型 湖水面积 水力计算 |
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| A Tentative Discussion on the Monitoring of the Yigong Landslide-blocked Lake with Satellite Remote Sensing Technique |
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| Abstract:Using multi temporal and multi platform satellite remote sensing data, the authors obtained the area changes of the Yigong Lake after Yigong Landslide. The water levels and water volumes of the lake in different periods were calculated by using a digital elevation model created by the topographic map. Some hydraulic parameters, such as width of dam collapse,maximum flux and maximum flow speed, were also deduced. These calculated results were very similar to those measured in site. The satellite remote sensing method can be of great help in the monitoring of geological hazards. |
| keywords:Yigong Lake remote sensing data digital elevation model area of Yigong Lake hydraulic calculation |
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