Item: Avalanche patterns as aid in avalanche forecasting
Title: Avalanche patterns as aid in avalanche forecasting
Proceedings: International Snow Science Workshop, Davos 2009, Proceedings
Authors: Patrick Nairz Avalanche Warning Service Tyrol, Innsbruck, Austria
Abstract: Everyone who deals with avalanches over long periods of time automatically draws upon that experience when determining avalanche hazards. The principle always remains the same: one compares (often unconsciously) earlier situations with the current one. If there are similarities in the weather and the stratigraphy of the snowpack, one seeks a comparable avalanche situation. For some years now, the Avalanche Warning Service Tyrol has structured each winter season into clearly defined avalanche-relevant situations called “avalanche patterns”. For each of these patterns, well documented case studies from other winters were first assembled, using snow profiles, data from the automated weather stations and numerous pictures, then applied in our instruction courses for avalanche officers. The feedback thus far is very promising and the objective is clear: In its initial phase, the avalanche commissioners must be trained to independently recognize such patterns, which will lend additional support to their work. The second phase will be to introduce this system to the public.
Keywords: avalanche pattern, avalanche forecasting, decision making
Digital Abstract Not Available