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Avalanche Science: The Cold Facts by Dr. Ethan Greene

  • Buena Vista Community Center 715 East Main Street Buena Vista, CO, 81211 United States (map)

Dr. Ethan Greene has been the Director of the Colorado Avalanche Information Center (CAIC) since 2005.  Prior to his time with the CAIC, Dr. Greene spent several winters in the San Juan Mountains, at Big Sky Ski Resort as a ski patroller and at the Forest Service Utah Avalanche Center as an avalanche forecaster. 

Dr. Greene studied meteorology at the University of Utah and atmospheric science, specifically snowdrift formation, at Colorado State University. He has also examined and researched the microstructure of snow and its metamorphism in Colorado and Switzerland, earning a PhD in Geosciences. Dr. Greene has published various scholarly articles on snow, weather.  

Dr. Greene holds an M.S. in atmospheric science and a Ph.D. in Geoscience, both from Colorado State University. He is the author of Snow, Weather, and Avalanches: Observation Guidelines for Avalanche Programs in the United States and The International Classification for Seasonal Snow on the Ground. For more information visit