Item: Recent observations of snow metamorphism and microstructure
Title: Recent observations of snow metamorphism and microstructure
Proceedings: Proceedings Whistler 2008 International Snow Science Workshop September 21-27, 2008
Authors: Dr. Ethan Greene, Dr. Martin Schneebeli, Dr. K. Elder.
Abstract: Snowpack stability and avalanche formation depend on the microstructure within a snow layer. These layers form as snow is added to the pack or as metamorphism distinguishes existing layers from their neighbors. It is common practice for snow scientists and practitioners to characterize each snow layer with the size and shape of disaggregated snow grains. However, desegregation destroys the microstructure and much of the information needed for avalanche prediction. Using high-resolution digital imaging and serial sectioning we created three-dimensional reconstructions of snow samples. These reconstructions allow us to examine the intact structure of the snow and learn about the microstructure within a single snow layer.
Presenters: Dr. Ethan Greene.
Keywords: snow, snow metamorphism, snow microstructure, snow properties