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The RAMMS::Extended model was developed to simulate the motion of mixed flowing/powder avalanches in general three-dimensional terrain. Application of the existing, operational RAMMS model (Christen et al. 2010) is limited to the simulation of dense flowing avalanches without snow entrainment. The RAMMS::Extended model simulates both the avalanche core and the powder cloud and includes snow entrainment, and other processes, such as temperature and avalanche interaction with mountain forests. The model also includes impact pressure modules for both the avalanche core and powder cloud to better determine external avalanche loads on both wide (buildings) and slender (pylons) structures.

If you are a RAMMS::Avalanche user, and are interested in testing RAMMS::Extended, then get in contact with us!