one of the natural hazards in mountainous areas, which always cause great losses of life and financial damages, is the avalanche fall. since, survey the avalanche-prone areas for prevention the probable damages is considerably important, especially when the avalanche paths affect the residential areas or roads. in this research, based on local information, one of the avalanche paths in the chah...

1. introduction mountain regions are increasingly endangered by a variety of disaster, including avalanche, debris flows, and rock slide. some characteristics such as elevation, angle of slope, vegetation and climatic elements could affect the avalanche event. indeed, avalanche is the second factor in soil erosion that causes demolition; therefore, it threatens the food safety. iran has two mai...

The currently adopted approach to avalanche hazard mapping in northern Italy includes avalanche dynamic modelling, coupled with statistical analysis of snow depth at avalanche start. The 30-years and 300-years return period avalanches at a given site are modelled and their run out zone and pressure are evaluated. The snow depth in the avalanche release zone is assumed to coincide with the three...

Snow avalanche paths are major geomorphic features in the Rocky Mountains of Glacier National Park, Montana. They are the most common and geographically widespread form of mass-wasting in the central portion of the park. Field work and aerialphoto studies identified over 800 such paths in the study area. Other mass-wasting phenomena are also common. Snow avalanche path directions in the study a...

A series of laboratory experiments and numerical simulations have been performed to investigate the rapid fluid-like flow of a finite mass of granular material down a chute with partial lateral confinement. The chute consists of a section inclined at 40◦ to the horizontal, which is connected to a plane run-out zone by a smooth transition. The flow is confined on the inclined section by a shallo...

Today, temporary measures to improve avalanche safety often depend on remote measurements by automatic stations. The snow profile radar allows for direct measurements of snow accumulation, settling, fracture height and water percolation within avalanche release zones. Alarm stations automatically recognize avalanche flow and close traffic lines. Remote avalanche control by Wyssen exploders, pro...

Topographic development in mountainous landscapes is a complex interplay between tectonics, climate and denudation. Glaciers erode valleys to generate headwall relief, and hillslope processes control the height and retreat of the peaks. The magnitude-frequency of these landslides and their long-term ability to lower mountains above glaciers is poorly understood; however, small, frequent rockfal...