MoT-PSA: a two-layer depth-averaged model for simulation of powder snow avalanches on 3-D terrain
Hervé Vicari,
Dieter Issler
Abstract:For snow-avalanche hazard mapping, one needs efficient tools that nevertheless capture the essential physical processes. The code MoT-PSA (Method of Transport – Powder Snow Avalanche) described here is based on the two-layer depth-averaged formulation for mixed snow avalanches developed by Eglit and co-workers in the 1980s but is extended to 3-D terrain and uses a fast numerical scheme based on the method of transport. Compared to previous works, we introduce novel formulations for the suspension and depositio… Show more
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