Browsing Norwegian Geotechnical Institute (NGI) Digital Archive by Author "Bartelt, Perry"
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Avalanche hazard mapping using numerical Voellmy-Fluid models
Gruber, Urs; Bartelt, Perry (NGI Publication;203, Chapter, 1998)One- and two-dimensional numerical dense-snow avalanche dynamics models using a Voellmy-fluid constitutive flow law have been developed in Switzerland recently. In order to apply these models in practice, they have been ... -
Operational use of a snowpack model for the avalanche warning service in Switzerland : model development and first experiences
Lehning, Michael; Bartelt, Perry; Brown, Bob (NGI Publication;203, Chapter, 1998)The national Swiss avalanche warning service must provide high quality avalanche danger forecasts with an increasing spatial resolution. For this purpose, forecasters require objective tools to judge local and regional ... -
A short comparison between Voellmy-fluid and Criminale-Ericksen-Filby-fluid dense snow avalanche models
Bartelt, Perry; Salm, Bruno (NGI Publication;203, Chapter, 1998)In the publications Norem et al. (1987) and Norem et al. (1989) a dense snow avalanche model is proposed that uses a Criminale-Ericksen-Filby constitutive relation with power law viscosity functions. A vertical velocity ...