Volume growth of a powder snow avalanche

Michel Y. Louge, Barbara Turnbull, Cian Carroll
2012 Annals of Glaciology  
We contrast the frontal dynamics of dilute powder snow avalanches with the behavior of their tail. While the former can be regarded as a fast-moving eruption current dominated by synergistic material injection into a short head, the latter behaves as a nearly arrested dilute cloud of particles expanding by progressive incorporation of ambient air, or by entrainment of snow-cover material by late avalanches trailing well behind the front.
doi:10.3189/2012aog61a030 fatcat:zbqlga4lfzhyxayehvgh52d26m