A Model for Scaling Avalanche Speeds
Open Access
- 1 January 1990
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of Glaciology
- Vol. 36 (123) , 188-198
- https://doi.org/10.1017/s0022143000009436
Abstract
Snow-avalanche speeds, run-out distances, and the concepts from dense granular flows are combined in a model for prediction of speeds along the incline. Field measurements indicate that speeds and run-out distances are nearly independent of path steepness once a length is chosen to scale them. Application of granular-flow concepts explains these results. The most important feature of the model (and the speed data) is the steep gradient of speeds in the run-out zone. These results emphasize the need for high precision in run-out prediction when construction or defences are contemplated.Keywords
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