The massive 8.0-magnitude Wenchuan Earthquake triggered huge landslides,avalanches,and debris flows that blocked rivers and created 34 important quake lakes,including the Tangjiashan Quake Lake on the Tongkou River.Mo...The massive 8.0-magnitude Wenchuan Earthquake triggered huge landslides,avalanches,and debris flows that blocked rivers and created 34 important quake lakes,including the Tangjiashan Quake Lake on the Tongkou River.More than half of these lakes were identified to be of moderate or high hazard levels,so activities needed to be undertaken for hazard mitigation of potential flooding.This paper presents the mitigation processes of quake lake hazards,which involve various techniques such as rapid hazard analysis,scenario-based mitigation planning,and real-time forecasting of outburst flooding for implementation actions.The shortage of hydrologic and geological data and the nature of emergency situations raise substantial challenges in the hazard mitigation of quake lakes.This paper suggests a potential approach in dealing with quake lake hazards,which integrates the automatic monitoring network,hydrologic models,and hydrodynamic models with a comprehensive indicator for hazard levels.The necessity of improving the integrated methodology is highlighted.展开更多
The authorities are poised to evacuate more than a million people threatened by deadly pools dammed in by the Sichuan earthquake Rao Xiping is the head of a group of less than 20 water conservation experts,
基金supported by the State Key Laboratory of Hydroscience and Engineering(Grant No.2008-TC-1)China Ministry of Science and Technology through the 973 project(Grant No.2008CB425803).
文摘The massive 8.0-magnitude Wenchuan Earthquake triggered huge landslides,avalanches,and debris flows that blocked rivers and created 34 important quake lakes,including the Tangjiashan Quake Lake on the Tongkou River.More than half of these lakes were identified to be of moderate or high hazard levels,so activities needed to be undertaken for hazard mitigation of potential flooding.This paper presents the mitigation processes of quake lake hazards,which involve various techniques such as rapid hazard analysis,scenario-based mitigation planning,and real-time forecasting of outburst flooding for implementation actions.The shortage of hydrologic and geological data and the nature of emergency situations raise substantial challenges in the hazard mitigation of quake lakes.This paper suggests a potential approach in dealing with quake lake hazards,which integrates the automatic monitoring network,hydrologic models,and hydrodynamic models with a comprehensive indicator for hazard levels.The necessity of improving the integrated methodology is highlighted.
文摘The authorities are poised to evacuate more than a million people threatened by deadly pools dammed in by the Sichuan earthquake Rao Xiping is the head of a group of less than 20 water conservation experts,
