When landslide dams fail
Landslides that occur near rivers often create natural dams that can fail catastrophically when water breaches the top. In a new study, researchers learned how breaching works by building and destroying their own landslide dams and then comparing them to numerical models. They built model dams with loose sediments in a flume and subjected the dams to different river flow rates, then recorded how the dams were breached and eroded. The resulting model may help in developing early warning strategies for landslide dam outburst flooding, they write.
Source:
Mechanisms of the Non-Uniform Breach Morphology Evolution of Landslide Dams Composed of Unconsolidated Sediments During Overtopping Failure
Gordon G. D. Zhou, Xueqiang Lu, Yunxu Xie, Kahlil F. E. Cui, Hui Tang [2022] JGR Earth Surface
https://agupubs.onlinelibrary.wiley.c...
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