Avalanche

An avalanche (also called a snowslide ) is a cohesive slab of snow lying upon a weaker layer of snow in the snowpack that fractures and slides down a steep slope when triggered. Avalanches are typically triggered in a starting zone from a mechanical failure in the snowpack ( slab avalanche ) when the forces of the snow exceed its strength but sometimes only with gradual widening ( loose snow avalanche ). After initiation, avalanches usually accelerate rapidly and grow in mass and volume as they entrain more snow. If the avalanche moves fast enough, some of the snow may mix with the air forming a powder snow avalanche , which is a type of gravity current .

Page Revisions

Year Metadata Sections Top Words First Paragraph
2018

140035 characters

33 sections

58 paragraphs

29 images

234 internal links

53 external links

1. Formation

2. Terrain, snowpack, weather

3. Dynamics

4. Human involvement

5. Notable avalanches

6. Classification

7. See also

8. References

9. External links

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settings 0.039

powder 0.039

An avalanche (also called a snowslide ) is a cohesive slab of snow lying upon a weaker layer of snow in the snowpack that fractures and slides down a steep slope when triggered. Avalanches are typically triggered in a starting zone from a mechanical failure in the snowpack ( slab avalanche ) when the forces of the snow exceed its strength but sometimes only with gradual widening ( loose snow avalanche ). After initiation, avalanches usually accelerate rapidly and grow in mass and volume as they entrain more snow. If the avalanche moves fast enough, some of the snow may mix with the air forming a powder snow avalanche , which is a type of gravity current .

2017

139536 characters

32 sections

57 paragraphs

28 images

239 internal links

56 external links

1. Formation

2. Terrain, snowpack, weather

3. Dynamics

4. Human involvement

5. Notable avalanches

6. Classification

7. See also

8. References

9. External links

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powder 0.039

An avalanche (also called a snowslide ) is a rapid flow of snow down a sloping surface. Avalanches are typically triggered in a starting zone from a mechanical failure in the snowpack (slab avalanche) when the forces on the snow exceed its strength but sometimes only with gradually widening (loose snow avalanche). After initiation, avalanches usually accelerate rapidly and grow in mass and volume as they entrain more snow. If the avalanche moves fast enough some of the snow may mix with the air forming a powder snow avalanche, which is a type of gravity current .

2016

129068 characters

30 sections

54 paragraphs

27 images

236 internal links

49 external links

1. Formation and type

2. Terrain, snowpack, weather

3. Dynamics

4. Human involvement

5. Notable avalanches

6. Classification

7. See also

8. References

9. External links

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An avalanche (also called a snowslide or snowslip ) is a rapid flow of snow down a sloping surface. Avalanches are typically triggered in a starting zone from a mechanical failure in the snowpack (slab avalanche) when the forces on the snow exceed its strength but sometimes only with gradually widening (loose snow avalanche). After initiation, avalanches usually accelerate rapidly and grow in mass and volume as they entrain more snow. If the avalanche moves fast enough some of the snow may mix with the air forming a powder snow avalanche, which is a type of gravity current .

2015

122944 characters

29 sections

52 paragraphs

27 images

231 internal links

46 external links

1. Formation and type

2. Terrain, snowpack, weather

3. Dynamics

4. Human involvement

5. Notable avalanches

6. Classification

7. See also

8. References

9. External links

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An avalanche (also called a snowslide or snowslip ) is a rapid flow of snow down a sloping surface. Avalanches are typically triggered in a starting zone from a mechanical failure in the snowpack (slab avalanche) when the forces on the snow exceed its strength but sometimes only with gradually widening (loose snow avalanche). After initiation, avalanches usually accelerate rapidly and grow in mass and volume as they entrain more snow. If the avalanche moves fast enough some of the snow may mix with the air forming a powder snow avalanche, which is a type of gravity current .

2014

121934 characters

29 sections

55 paragraphs

26 images

226 internal links

41 external links

1. Formation and type

2. Terrain, snowpack, weather

3. Dynamics

4. Human involvement

5. Notable avalanches

6. Classification

7. See also

8. References

9. External links

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An avalanche (also called a snowslide or snowslip ) is a rapid flow of snow down a sloping surface. Avalanches are typically triggered in a starting zone from a mechanical failure in the snowpack (slab avalanche) when the forces on the snow exceed its strength but sometimes only with gradually widening (loose snow avalanche). After initiation, avalanches usually accelerate rapidly and grow in mass and volume as they entrain more snow. If the avalanche moves fast enough some of the snow may mix with the air forming a powder snow avalanche, which is a type of gravity current .

2013

122550 characters

29 sections

55 paragraphs

28 images

226 internal links

38 external links

1. Formation and type

2. Terrain, snowpack, weather

3. Dynamics

4. Human involvement

5. Notable avalanches

6. Classification

7. See also

8. References

9. External links

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settings 0.042

powder 0.042

ski 0.041

wet 0.040

An avalanche (also called a snowslide or snowslip ) is a rapid flow of snow down a sloping surface. Avalanches are typically triggered in a starting zone from a mechanical failure in the snowpack (slab avalanche) when the forces on the snow exceed its strength but sometimes only with gradually widening (loose snow avalanche). After initiation, avalanches usually accelerate rapidly and grow in mass and volume as they entrain more snow. If the avalanche moves fast enough some of the snow may mix with the air forming a powder snow avalanche, which is a type of gravity current .

2012

115351 characters

30 sections

54 paragraphs

23 images

223 internal links

33 external links

1. Formation and classification

2. Mountain Safety

3. Terrain, snowpack, weather

4. Dynamics

5. Human involvement

6. Human survival and rescue

7. Notable avalanches

8. European avalanche risk table

9. European avalanche size table

10. North American Avalanche Danger Scale

11. Canadian classification for avalanche size

12. United States classification for avalanche size

13. Rutschblock Test

14. See also

15. References

16. External links

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An avalanche (also called a snowstorm or snowavalanche ) is a rapid flow of packed snow down a slope, that results from a mechanical failure in the snowpack when the forces on the snow exceed its strength. After the initiation avalanches usually accelerate rapidly and grow in size as they entrain more snow. If the avalanche moves fast enough some of the snow may mix with the air forming a powder snow avalanche , which is a type of gravity current .

2011

112538 characters

30 sections

50 paragraphs

21 images

214 internal links

28 external links

1. Avalanche formation and classification

2. Terrain, snowpack, weather

3. Dynamics

4. Human involvement with avalanches

5. Human survival and avalanche rescue

6. Notable avalanches

7. European avalanche risk table

8. European avalanche size table

9. North American Avalanche Danger Scale

10. Canadian classification for avalanche size

11. United States classification for avalanche size

12. See also

13. References

14. External links

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An avalanche is a sudden, rapid flow of snow down a slope, occurring when either natural triggers, such as loading from new snow or rain, or artifical triggers, such as explosives or backcountry skiers, overload the snowpack. From a geophysical perspective, avalanches are an example of a non-critical, punctuated equilibrium system [1] . Typically occurring in mountainous terrain, an avalanche can mix air and water with the descending snow. Powerful avalanches have the capability to entrain ice, rocks, trees, and other material on the slope. Avalanches are primarily composed of flowing snow, and are distinct from mudslides , rock slides , and serac collapses on an icefall . In contrast to other natural events which can cause disasters, avalanches are not rare or random events and are endemic to any mountain range that accumulates a standing snowpack. In mountainous terrain avalanches are among the most serious objective hazards to life and property, with their destructive capability resulting from their potential to carry an enormous mass of snow rapidly over large distances.

2010

125207 characters

33 sections

87 paragraphs

22 images

225 internal links

28 external links

1. Formation and Occurrences

2. Dynamics

3. Avalanche avoidance

4. Human survival and avalanche rescue

5. Notable avalanches

6. European avalanche risk table

7. European avalanche size table

8. North American Avalanche Danger Scale

9. Canadian classification for avalanche size

10. United States classification for avalanche size

11. See also

12. References

13. External links

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An avalanche is a sudden rapid flow of snow down a slope, occurring when either natural triggers or human activity causes a critical escalating transition from the slow equilibrium evolution of the snow pack. Typically occurring in mountainous terrain, an avalanche can mix air and water with the descending snow. Powerful avalanches have the capability to entrain ice, rocks, trees, and other material on the slope. Avalanches are primarily composed of flowing snow, and are distinct from mudslides , rock slides , and serac collapses on an icefall . In contrast to other natural events which can cause disasters, avalanches are not rare or random events and are endemic to any mountain range that accumulates a standing snow pack. In mountainous terrain avalanches are among the most serious objective hazards to life and property, with their destructive capability resulting from their potential to carry an enormous mass of snow rapidly over large distances.

2009

110807 characters

33 sections

83 paragraphs

21 images

113 internal links

29 external links

1. Formation and Occurrences

2. Dynamics

3. Avalanche avoidance

4. Human survival and avalanche rescue

5. Notable avalanches

6. European avalanche risk table

7. European avalanche size table

8. North American Avalanche Danger Scale

9. Canadian classification for avalanche size

10. United States classification for avalanche size

11. See also

12. References

13. External links

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An avalanche is a rapid flow of snow down a slope, from either natural triggers or human activity. Typically occurring in mountainous terrain, an avalanche can mix air and water with the descending snow. Powerful avalanches have the capability to entrain ice, rocks, trees, and other material on the slope; however avalanches are always initiated in snow, are primarily composed of flowing snow, and are distinct from mudslides , rock slides , rock avalanches , and serac collapses from an icefall . In mountainous terrain avalanches are among the most serious objective hazards to life and property, with their destructive capability resulting from their potential to carry an enormous mass of snow rapidly over large distances.

2008

96074 characters

29 sections

75 paragraphs

17 images

121 internal links

28 external links

1. Contributing factors

2. Dynamics

3. Avalanche avoidance

4. Human survival and avalanche rescue

5. Notable avalanches

6. European avalanche risk table

7. European avalanche size table

8. North American Avalanche Danger Scale

9. Canadian classification for avalanche size

10. United States classification for avalanche size

11. See also

12. External links

13. References

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An avalanche is an abrupt and rapid flow of snow, often mixed with air and water, down a mountainside. Avalanches are among the biggest dangers in the mountains for both life and property.

2007

71691 characters

26 sections

54 paragraphs

13 images

96 internal links

17 external links

1. Notable avalanches

2. Causes

3. Contributing factors

4. Avalanche avoidance

5. Human survival and avalanche rescue

6. European avalanche risk table

7. European avalanche size table

8. North American Avalanche Danger Scale

9. See also

10. External links

11. References

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An avalanche is a flow of snow down a mountainside. Avalanches are among the biggest dangers in the mountains for both life and property.

2006

52003 characters

23 sections

40 paragraphs

8 images

58 internal links

12 external links

1. Causes

2. Contributing factors

3. Avalanche avoidance

4. Human survival and avalanche rescue

5. European avalanche risk table

6. European avalanche size table

7. North American Avalanche Danger Scale

8. See also

9. External links

10. References

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An avalanche is a very large slide of snow (or rock) down a mountainside, caused when a buildup of snow is released down a slope, and is one of the major dangers faced in the mountains . An avalanche is an example of a gravity current consisting of granular material .

2005

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21 sections

41 paragraphs

2 images

48 internal links

13 external links

1. Causes

2. Contributing factors

3. Avalanche avoidance

4. Human survival and avalanche rescue

5. European avalanche risk table

6. United States Avalanche Danger Scale

7. See also

8. External links

9. References

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An avalanche is a slide of a large snow (or rock) mass down a mountainside, caused when a buildup of snow is released down a slope, and is one of the major dangers faced in the mountains in winter . An avalanche is an example of a gravity current consisting of granular material .

2004

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13 sections

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6 external links

1. Causes

2. Contributing factors

3. Avalanche avoidance

4. Human survival and avalanche rescue

5. European avalanche risk table

6. See also

7. External links

8. References

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An avalanche is caused when a build up of snow is released down a slope, and is one of the major dangers faced in the mountains in Winter . An avalanche is an example of a gravity current consisting of granular material .

2003

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11 sections

8 paragraphs

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1 external links

1. Human Survival

2. Causes

3. Contributory Factors

4. Avalanche Avoidance

5. See Also

6. External Links

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An avalanche is caused when a build up of snow is released down a slope, and is one of the major dangers faced in the mountains in Winter . An avalanche is a type of gravity current .

2002

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