| 西藏易贡滑坡堰塞湖的卫星遥感监测方法初探 |
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| 关键词:Yigong Lake remote sensing data digital elevation model area of Yigong Lake hydraulic calculation |
| 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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| 摘要: |
| A Tentative Discussion on the Monitoring of the Yigong Landslide-blocked Lake with Satellite Remote Sensing Technique |
| 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. |
| LV Jie-tang,WANG Zhi-hua,ZHOU Cheng-hu.2002.A Tentative Discussion on the Monitoring of the Yigong Landslide-blocked Lake with Satellite Remote Sensing Technique[J].Acta Geoscientica Sinica,23(4):363-368. |
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