GIS APPLICATIONS OF AVALANCHE FORECASTING

A thorough understanding of the presence and development of the spatial distribution of weak layers is necessary for backcountry travelers to make informed decisions in potentially dangerous terrain. Avalanche Forecasters convey knowledge of spatial variability via written forecasts, snow-pit profiles and by compiling observations from users in the field. Using ArcGIS, a model has been created to overlay this information on Google Earth. 2m LiDAR data was used to create a Digital Elevation Model which displays slope angle, aspect and elevation in high resolution. This model can effectively display the “Danger Rose” over the terrain as an aid in route-planning. Observations from the field and hourly/daily weather information from several stations are displayed to provide in-depth information about specific areas. This tool is aimed towards those with beginner/intermediate knowledge and experience, in order to develop and improve comprehension of spatially complex avalanche problems.