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Communicating avalanche likelihood and probability
Starting with the likelihood definition and terms in the Conceptual Model of Avalanche Hazard (Statham et al., 2018), Scott Thumlert, Grant Statham and Bruce Jamieson present some ideas for improving avalanche likelihood and how it can be communicated. Presented at the Virtual Snow Science Workshop, October 2020. CC BY-ND.
Near crust faceting and slab avalanching
A technical video for avalanche practitioners and recreationists interested in avalanche science. The video outlines the formation of faceted layers near melt-freeze crusts, the persistence of these layers as potential failure layers for slab avalanches and some ideas on anticipating the resulting slab avalanches. Bruce Jamieson and Scott Savage, May 2020.
A more visual method for rating avalanche size on the D-scale
A video to start discussion about whether visualization will help us rate avalanche size on the D-scale. By Bruce Jamieson, Montse Bacardit, Ethan Greene and Ian Tomm. May 2020. Catalan and Spanish subtitles by Montse Bacardit. German subtitles by Thomas Exner. CC BY-ND.
Why does snow cool when melted with salt, and what does that have to do with avalanches?
When salt is added to snow, the snow cools because heat from the snow flows into concentrated salt water around the salt grains. The surprisingly large amount of heat required for melting (i.e. latent heat) contributes to avalanche formation in at least two ways.