Avalanches
Updated: 5/2/2020
Avalanches

Storyboard Text

  • Hello, my name is Xavier and I love to researching about natural disasters, particularly Avalanches. I work for the team of natural disasters, thus our job is to educate people. My friend Amanda will be coming over today, and we will have a battle on who knows the most information. I must revise before she comes here. Avalanches are mainly ice, snow and rock. They can occur, when snow packs slide of. A snow pack is basically layers of snow! A fun fact is that a fully developed Avalanche can weigh million tonnes, picking up more mass as it rushes downhill making a river of snow and ice. To trigger an avalanche, melted snow causes the top to be slippery and so any added weight can cause it to hurl downwards. Actually, there are two types of Avalanches, Sluff and Slab, sluff Avalanches are less dangerous since the snow is powdery, whereas when a Slab avalanche occurs the layer slides of and shatters in many different pieces. I think I got this competition and I think I will win!
  • WOW! You ALMOST did as much research as me. A powerful Avalanche can destroy buildings and even cut of power. With Avalanches, flash floods occur and it brings debris. The debris can be a long term problem, that the villagers have to deal with. An avalanche can cause a change in weather patterns and can also cause crop failure on the lower fields. An avalanche can block everything in it's path and can even restrict the normal movement of traffic. This can prevent people to go to their jobs and school.
  • Hello Xavier, are you ready for the battle to prove who intelligent. I will start, in Canada Avalanches occur in parts of British Columbia, Alberta and Yukon. Avalanches are RARE is other provinces, however, a severe one did occur in Toronto harming many citizens. Around the world, the Alpine countries tend to experience the most Avalanches. For example, France, Switzerland and Italy. United States however, ranks 5th world wide in Avalanche danger. The dangerous states being Colorado, Alaska and Utah.
  • Hey Amanda! Clearly I have more information too! Did you know that in the western United States, there are a 1000 avalanches that occur each year. I took a look at a map, and found that Avalanches occur a lot in Antarctica. Unexpectedly, they occur in India, Russia and Africa. Something that I found interesting is that Green Land and Australia weren't affected by Avalanches, even if they are quite close to the poles.
  • Oh WOW! Seems like you did a lot of research as well, but don't be mistaken I did more! Avalanches occur in the mountainous regions of the world, with a slope of 30-45 degrees. Even very small slopes(less than 10 m) can produce Avalanches. Sluff Avalanches can occur when there is soft, near surfaced snow. This condition can occur due to the warming of the sun. However, the Slab Avalanches occur in areas that have underlying layer. It can also occur spontaneously due to mechanical properties of the snow pack, such as temperature change. In certain places, Earthquakes and Tsunamis can cause cause Avalanches.
  • Haha, I have more research too! Antarctica for example, has a lot of snow which explains why it is prone to Avalanches. Places such as British Columbia have mountainous regions, and is capable of producing snow as well. Or lets take a look at India. The Himalayas are found in India, which are mountains of snow. This also meets the requirements of Avalanches.
  • Not only are Avalanches dangerous, they can damage our economy as well. When an Avalanche occurs, people aren't allowed to be in the area. Buildings and houses aren't allowed to be built in areas that are prone to natural disaster. Land use planners also asses the the development in the area. When there is active Avalanche hazard, transportation is closed to public. Infrastructure can also be damaged and the damage that is caused could effect the lively hood of many.
  • While researching, I was a bit hungry so I wanted to know if food can be imported. Turns out, importing is also very hard to do. Ski resorts are also required to close, until everything is normal. Jobs could also be lost due to this natural disaster, and food can be a huge concern. It would also be hard for citizens to look for new jobs, since transportation can be an issue.
  • I can't imagine what people have to deal with. A good news is that there are technologies that can be used to predict Avalanches. However, even though Avalanches are the most deadly there isn't much we know that can do to prevent them. We can dig snow pits, to tell if there are any weak layers. However, we do not know when they will be triggered.
  • Nice competition we had here, do you want to come to my house to resume the competition
  • Thank you so much for offering. Yes we can go to your to resume this battle.