A two-phase mechanical model for rock-ice avalanches

Snow Avalanches, Ice Avalanches and Glacier Surges

A mechanical erosion model for two-phase mass flows

Erosion, entrainment and deposition are complex and dominant, but yet poorly understood, mechanical processes in geophysical mass flows. Here, we propose a novel, process-based, two-phase, erosiondeposition model capable of adequately describing these complex phenomena commonly observed in landslides, avalanches, debris flows and bedload transport. The model is based on the jump in the momentum...

Monitoring and modeling ice-rock avalanches from ice-capped volcanoes: A case study of frequent large avalanches on Iliamna Volcano, Alaska

Iliamna is an andesitic stratovolcano of the Aleutian arc with regular gas and steam emissions and mantled by several large glaciers. Iliamna Volcano exhibits an unusual combination of frequent and large ice-rock avalanches in the order of 1×10 m to 3×10 m with recent return periods of 2–4 years. We have reconstructed an avalanche event record for the past 45 years that indicates Iliamna avalan...

Scaling laws for melting ice avalanches.

This Letter describes an investigation of interfacial melting in ice-bearing granular flows. It is proposed that energy associated with granular collisions causes melting at an ice particle's surface, which can thus occur at temperatures well below freezing. A laboratory experiment has been designed that allows quantification of this process and its effect on the dynamics of a granular shear fl...

Avalanches in the lung: A statistical mechanical model.

Albert-László Barabási,1,2 Sergey V. Buldyrev,1 H. Eugene Stanley,1 and Béla Suki3 1Center for Polymer Studies and Department of Physics, Boston University, Boston, Massachusetts 02215 2Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556 3Respiratory Research Laboratory, Department of Biomedical Engineering, Boston University, Boston, Massachusetts 02215 (Received 10 Marc...