Does it happen in the mountain tundra of the polar night? The answer is obvious

On the Northern outskirts of Europe, Asia and America reigns tundra. In the southern hemisphere it is found only in some of the Antarctic Islands. The area of tundra stretches along the Northern boundary of Russia, washed by the icy Arctic ocean.

Unique and rugged natural area

It looks grim, inhospitable desert area. Nine months of the year here reigns the winter, long and boring stretches of the polar night. To the treeless, naked land comes the dim light of the cold moon. Sparingly twinkle lonely star. Is a rare, dreamlike beauty of the Northern lights.

On this barren soil, bound in the permafrost for tens, sometimes hundreds, of meters deep, home to rare mosses and lichens lonely. Just South of stuck and stunted shrubs, put down their roots in the peaty soil.

In order to answer the question of whether there is in the mountain tundra of the polar night, you should understand the definition of this ecosystem.

Amazing biome

Mountain tundra, also referred to as "Alpine", call the existing ecosystem, located on a vertical edge of the area. The territory of this natural biome stretches from the snow-ice belt to the Alpine forest. Its boundary corresponds to the boundary forest and passes through the snowline. The turn of the climatic zone – the mean summer isotherm of +10°. This high-rise area typical of the mountain ranges of subarctic and temperate zones.

The Main differences between the Alpine tundra of the Arctic is the best drainage soils and weak waterlogged soil.

Weather conditions of the Northern lands

The Scientific explanation is there in the mountain tundra of the polar night, is the climate of this zone. These regions are characterised by extremely low air temperature down in accordance with the adiabatic gradient by 1°C for every 100-200 m height. For mountain tundra typical negative average annual air temperature. It has strong wind and solar radiation are characterized by high activity. For zone is characterized by rarefied air, the uneven distribution of intense change in its moisture content. Snow cover is distributed unevenly.

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To Clarify, is whether in the mountain tundra of the polar night, help and the specific location of the zone. This natural phenomenon is happening in those mountain areas that are geographically within the Arctic circle. The polar night does not happen if the highlands is located in the southern natural areas that are characterized by a temperate climate. Indeed, in this area the alternation of day and night is the same as in areas of coniferous or deciduous forests. And the main condition for the onset of polar night is extremely constant having a low temperature. And the only reason for this phenomenon is the geographical latitude, though North, though South. The main thing - the maximum distance from the North or South of the Arctic circle to the poles.

Winter: frost and pitch black

After Understanding whether there is in the mountain tundra of the polar night, let's try to establish its definition, and duration. This natural phenomenon is called the period when the Sun does not appear over the horizon more than a day. This is a consequence of the tilt angle of 23.5° rotation axis of our planet to the Ecliptic plane. The shortest time (about two days), the polar night lasts in the latitude of the Arctic circle. The maximum duration of the phenomenon – about six months, which is characteristic of the South pole.

The polar night in the tundra lasts on average 1-2 months in the winter. This season's harshest weather conditions. Thus, the average temperature in January is kept at around -25-35°C. the snow-Covered mountains, the icy wind pierced through the darkness in winter seem lifeless. Even a permanent inhabitant of mountain tundra - reindeer in search of food often migrate to the South. Heavy conditions in this harsh area, and the polar night – it defies the nature of all living things.