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Moraine-dammed lake. A moraine-dammed lake, occurs when the terminal moraine has prevented some meltwater from leaving the valley. When a glacier retreats, there is a space left over between the retreating glacier and the piece that stayed intact which holds leftover debris (moraine). Meltwater from both glaciers seep into this space creating a ...
The Guangxieco moraine dam, the Ceringmaco moraine dam, and the Yindapuco moraine dam have all experienced the combined effects of ice avalanches and buried ice melts, resulting in both surge overtopping and piping failure modes (Chang et al., 2017; Liu et al., 2019). However, research on the coupled multi-mode failure of moraine dams is still in its early stages.
moraine dams also depends on factors such as the stability of the dam, including dam geometry and material or miti-gation measures such as artificial lowering of the lake level (Portocarreo-Rodriguez and the Engility Corporation, 2014). Second, there are few long-term palaeo-GLOF records with which to assess baseline behaviour. Eventually ...
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- Stephan Harrison, Jeffrey S. Kargel, Christian Huggel, John M. Reynolds, Dan H. Shugar, Richard A. B...
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- 2017
Aug 28, 2019 · The avalanches into the lake also augment the level of water in the lake. If the height of the produced wave is high enough to overtop the moraine dam, and the velocity of flow is larger than the critical velocity, the flow will scour the moraine dam (Liu et al. Citation 2013). This will initiate the incision process, and if the erosion rate of ...
- Robin Neupane, Huayong Chen, Huayong Chen, Chunran Cao
- 2019
Dec 1, 2013 · The dense trees in the external moraine dam (Fig. 2) are possible to resist the rupture of the dam caused by increased hydrostatic pressure associated with rising lake levels. ...
Apr 20, 2017 · Moraine-dammed lakes at debris-covered glaciers are becoming increasingly common and pose significant outburst flood hazards if the dam is breached. While moraine subsurface structure and internal ...
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Jan 1, 2012 · Some mechanisms for failure or overtopping of the moraine can include rising water levels, seepage, melting of the ice core and surge waves caused by avalanches and landslides into the lake. Landslide dam outburst floods resulting from landslides into rivers can also cause similar problems and the high earthquake activity in the region adds to the risk.
