ERTH 2402 Lecture Notes - Lecture 18: Irradiation, Energy Economics, Humid Continental Climate
Document Summary
Snow pack is a composed of several layers with different characteristics. Cohesion stickiness property of materials that stick together. Low cohesion means that it does not stick ex powder snow. Cohesive snow is wet snow liquid between the ice. New snow flake is les cohesive old is more cohesive. Weak layers are caused by increased wind during a storm. Depth hoar forms at the base of the snow pack. Large crystals formed by humidity in the air which turns into ice that changes face 1. Avala to descend to go down ( old french) Start zone large accumulation and fresh snow non cohesive begins to slide. Run out stop and deposited where a victim is most likely buried. Sluff is a avalanche too small to bury a buried person. An avalanche is large enough to bury a village. A few metres to several km dry snow travels at a large speed, wet snow travels slowly.