AVALANCHEinglesceti2024yemninhleses.pptx

Ingles

1. AVALANCHE Leslie Mireya Mamani Mollo Juan Pablo Amonzabel Gutiérrez 4.2. B CETI

2. MEANING OF AVALANCHE An avalanche is a large amount of snow that slides rapidly down a mountain. It could be snow or landslide. Usually at inclinations of 30 to 45 degrees. Usually falls with speed.

3. CAUSES Lack of homogeneity between snow layers. Excessive weight, when the amount of snow exceeds what a surface can support. Rain, which penetrates a recent snow layer, causing it to slide due to the weight of the water. Changes in ambient temperature that can affect the cohesion of the snow. Soil conditions, especially when the terrain is conducive to material sliding on its surface.

4. TYPES Avalanche from a point: when the temperature is low and snow is still falling Avalanche from a slope: is more serious as it involves a larger surface area of release Deep dry snow avalanche from a slope: is one of the most severe include not only large amounts of snow but also parts of hard ground and vegetation Wet snow avalanche from a point: These are typically small avalanches that occur when temperatures begin to rise Deep wet snow avalanche from a slope: massive amount of snow falls due to heavy rain or a warm winter day

5. What to do in case of a snow avalanche Try to escape the danger area Activate an avalanche victim locator (DVA) Try to stay calm Hold onto a solid object Swim in the direction of flow Make noise Try to create an air pocket Conserve energy and oxygen Wait for rescue

6. How to prevent a snow avalanche Know the terrain and conditions Assess snow stability Use appropriate equipment Travel in groups and communicate your itinerary Maintain distance and avoid steep slopes Avoid sudden changes in snow loading

7. OTHERS DATA The magnitude of snow avalanches can be determined based on three factors: the starting zone type of snow position of the sliding plane Frequent places where avalanches occur Alps Andes Himalayas Alaska Timing Avalanches are most common during and within 24 hours following storms that deposit 30 centimeters or more of fresh snow

8. THE WORST AVALANCHES THE WORST AVALANCHES IN THE WORLD DATE Place Dead toll people 1914 - 1919 Austro-Italian front of the Alps. 10 million soldiers died in the war, 5% lost their lives due to the avalanche May 1, 1970 Nevado Huascarán mountain 18,000 dead. December 15, 1999 Venezuelan town of Vargas, north of Caracas. more than 10,000 people September 20, 2002 the town of Nijni Karmadon, in Russia 127 people In January 1954 the Austrian Walser Valley in Vorarlberg 125 died. January 18, 1993 in the village of Uzengili, Bayburt province, northeastern Turkey 56 people January 23, 1998 on the Lauzet ridge, on the ski slope located in Orres , in the southwest of France. 11 people died

9. THANKS