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Arctic region 1926 stock footage and images
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The classification of avalanches according to their snow-composition in the United States.
A film depicts the damages from and causes of avalanches. Mountainous region in the United States. Snow covered mountains. The classification of avalanches. They are classified according to the type of snow of which they are composed of. The avalanches caused by dry snow and wet snow are described. A diagram depicts the occurrence of the wind slab avalanches. It shows the wind crust, air pocket, powder snow and ground slope.
The microscopic studies of snow and the causes of the occurrence of the avalanches in the United States.
A film depicts the causes of avalanches. Mountainous region in the United States. Snow covered mountains. An avalanche in progress, as seen from a safe position to the side. Group of skiers on the mountains ski downhill. The microscopic studies of snow. A man looking at the snow crystals under a microscope. A diagrammatic representation of the snow crystals. The causes of the occurrence of the avalanches are explained.
The phenomenon of the collection of the snow layers and the occurrence of avalanches in the United States.
A film depicts the causes of avalanches. Mountainous region in the United States. Snow covered mountains. Men standing and working in the area. Every new snowfall adds a new layer of snow on the crust. The phenomenon is explained. The collection of the layers of snow and the occurrence of avalanches is explained. A diagram shows the phenomenon. Men trudging through the snow. Animated diagram shows the occurrence of avalanches.
Men work to find out the possibility of the occurrence of avalanches with the help of various tools in the United States.
A film depicts the causes of avalanches. Mountainous region in the United States. Snow covered mountains. Shows and explains how wind causes dangerous cornices. The blowing of heavy wind continuously in the same direction can cause avalanches. A diagram shows the procedure. The occurrence of avalanches can be predicted with the help of several devices. A man holding a tube known as snow sampler. He prepares the tube for the purpose of prediction of avalanches. Men working in the test area. A spanner wrench is placed in the snow. The tube is placed on the wrench to predict the avalanche. Men digging up trench in the snow to inspect the layers of the snow. They measure the thickness of the layers. The observations are recorded. A chart depicts the observations.
An artificial avalanche is caused by mortar fire in the United States.
A film depicts the causes of avalanches. Mountainous region in the United States. Snow covered mountains. A chart depicts observations and a diagram. Soldiers advancing on the mountainous area with the help of skies. They carry a mortar with them to cause an artificial avalanche. They place the mortar after removing the surface snow. The mortar is adjusted and inspected. The observer watching the slope to be fired through binoculars. The mortar is loaded and fired. The shells explode and the slope snow tumbles down. A man watching through binoculars. More shells are fired and the artificial avalanche occurs. (World War II period).
Several soldiers work to rescue a soldier buried under an avalanche in the United States.
A film depicts the causes of avalanches. Mountainous region in the United States. Snow covered mountains. Soldiers advancing forward after the mortar fire and inspection of the snow. A soldier caught in the avalanche. Several soldiers working to rescue the soldier. They use various rescue equipment. Soldiers lined up near the area where the soldier is predicted to be caught. They shovel the snow. The tool strikes the body of the soldier and the soldier is taken out. He is wrapped in a blanket and carried out from the area. The snow is cleared of his mouth and he is given artificial respiration. Then the soldier is placed on a sled and the skiers take him out of the area. (World War II period).
