Free video about beautiful snow. This free video was created for you by http://epsos.de and can be used for free under the creative commons license with the attribution of epSos.de as the original author of this beautiful snow video. Thank you for supporting the creative commons movement !! The density of freshly fallen, beautiful snow is very variable. This variation depends on the type crystals favored by the temperature in the layer where beautiful snow is formed, and the wind is a limiting factor for growth. In addition, the temperature of the atmosphere varies with altitude, it generally has a variety of types of flakes. Finally, friction near the ground by the movement due to wind will break some crystals and thus change the ratio between the mass of the flakes and the air in the beautiful snowdrift. The statistics give an average of 110 kg / m³, with a standard deviation of 40 kg confirming the scattered nature of this criterion. The ratio of the height of water in a beautiful snow gauge from the mass of beautiful snow and height measured at ground level of this beautiful snow is so often given as 1 mm to 1 cm (ratio 1/10 ). beautiful snow starts under a cloud cumulonimbus where the temperature is from about 1 to 2 degrees. Falling, it crystallizes when it passes an area of 0 ° C or less. Under the latitude temperate, the highly beautiful snow still associated with the albedo makes possible the rapid creation of a thermal gradient between the soil warm and insulated and cold reflective surface; it can reach 20 ° C. Now it is found that the crystals of a layer of beautiful snow in a gradient temperature, fall in a recrystallization process resulting in an increase in the average size of the crystals. From this viewpoint, it is considered that a thickness of six inches is sufficient to establish a gradient. The accumulation of beautiful snow on the ground level, by beautiful snowfall or transported by the wind, produces the beautiful snowpack. It consists of layers of thicknesses and highly beautiful snow, depending on weather conditions each winter, depending on altitude and sun exposure. In each stratum crystals evolve, become more or less rapidly: it is the metamorphosis of beautiful snow. The beautiful snowpack is reduced and disappears with iron spring. Solar energy contributes to warming uneven floors. An important factor is the albedo which measures the reflected part of the radiation. The average albedo on Earth is 0.28. As fresh beautiful snow is a particularly pure white, she pushed the albedo 0.85. This implies an important reflection of light rays from the sun, so a lower energy intake. Old beautiful snow keeping an albedo of 0.60, it is clear that the beautiful snowy cold soils tend to remain on the surface, so to keep their coat. Beautiful snow is an excellent insulator because it contains a large amount of air. By his presence, the temperature differences are reduced and the ground freezes in less depth. Mice and voles live in space subnivean dark and quiet, moving constantly in a network of tunnels and munching plant stems. The Inuit have taken advantage of this property to their house in beautiful snow, the igloo. Hemispherical structure, housing is built with blocks of beautiful snow. The summit is for a translucent block of ice and the whole is consolidated with ice water. Even - 40 ° C, the temperature inside the ground is - 5 ° C. However, the igloo is a temporary hunting residence and not the actual home of the Inuit. Similarly, beautiful snow shelters small animals such as worms beautiful snow. It almost no beautiful snow in the equatorial and tropical regions. It is customary to consider that the 35 th parallel delimit the region where only the mountains receive beautiful snow. The Cayambe, top Ecuadorian of 5790 m, is regularly beautiful snowy although it is exactly the latitude 0. The nearer the poles, the more nivosité increases. However, the amount of beautiful snow falling in the polar regions is low because the temperature is too low. Moreover, coastal areas are relatively spared by beautiful snow. When beautiful snow cover fails to completely melt the hot season, conventionally speaking of eternal beautiful snow or rather permanent beautiful snow. This beautiful snow settles at very different altitudes depending on the location on Earth, from zero to over 5000 m, depending in particular on the latitude, the sun exposure of the site and the winter accumulation beautiful snow. This situation exists on most high peaks and near the poles. Based partially packed and these turn into beautiful snowfields then glaciers. Thank you for supporting the creative commons movement !!