Abstract
The Dam Break model (DamBrk) developed by Fread was the most famous parametric dam break forecasting model with flexible inputs, and typically widely used for embankments or other man-made dams failure. The paper aims to discuss the parameter selection and calculation for natural dams, which are used as necessary input in The DamBrk model. And then the Tangjiashan landslide dams formed in 2008 Wenchuan earthquake is utilized to test the reasonability of DamBrk model. Outcomes shows that computed outflow volume through breach coincides with the observed values in magnitude when appropriate breach times be assumed. The methods put forth herein can also be helpful for the early warning and human evacuation of other natural dams.
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