When do we resort to artificial snow? How is it made? In what perspective?
In general, we ask a lot of questions about making artificial snow. In this article, we reply to all your questions.
Firstly, you should know that only 30% of the area is covered by artificial snow, or 323 hectares out of 1066. So, there is no cause for concern, most of the time you are skiing on natural snow!
In la Plagne, for example, there are 2 reservoirs used to produce snow with a total water capacity of 773,000 m³(the Adret des Tuffes Reservoir 406,000 m3 / Plan Vert basin 6,000 m3 / additional capacity 361,000 m3).
In comparison, this represents 0.33% of the dam in Tignes with its 230, 000,000 m³ of water.
Volume of production
510,000 m³ of water is required to make artificial snow for one season in la Plagne. That is the volume of 138 Olympic swimming pools.
1 m³ of water produces 2 m³ of snow
Ingredients: water, air and favourable conditions
This must be under pressure, cold (between 0.5° and 3°C) and filtered.
The air must be under pressure using the same system as an 8-bar car compressor.
Two conditions are essential to make artificial snow: the temperature and the level of humidity in the air.
We can produce rtificial snow from humid -3°C.
Generally, we resort to this production in the pre-season with a view to preparing a good base able to hold freshly fallen snow. It obviously allows us to guarantee consistent and sufficient snow coverage throughout the season for our snow-riding fans.
Many people think that producing artificial snow is polluting and yet it absolutely is not. Furthermore, no product is added to the water.
novembre 22, 2018