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In physical geography, tundra ( / ˈtʌndrə, ˈtʊn -/) is a type of biome where tree growth is hindered by frigid temperatures and short growing seasons. The term is a Russian word adapted from Sámi languages. [ 2] There are three regions and associated types of tundra: Arctic tundra, [ 3] alpine tundra, [ 3] and Antarctic tundra.
The Tundra of North America is a Level I ecoregion of North America designated by the Commission for Environmental Cooperation (CEC) in its North American Environmental Atlas . One of the planet's most recent biomes, a result of the last ice age only 10,000 years ago, the tundra contains unique flora and fauna formed during the last glaciation ...
Alpine tundra. Hikers traversing the Franconia Ridge in the White Mountains of New Hampshire, much of which is in the alpine zone. Alpine tundra is a type of natural region or biome that does not contain trees because it is at high elevation, with an associated harsh climate. As the latitude of a location approaches the poles, the threshold ...
The tundra climate is a polar climate sub-type located in high latitudes and high mountains. It is classified as ET according to Köppen climate classification . It is a climate which at least one month has an average temperature high enough to melt snow (0 °C or 32 °F), but no month with an average temperature in excess of 10 °C (50 °F). [ 1 ]
The Canadian Arctic tundra is a biogeographic designation for Northern Canada's terrain generally lying north of the tree line or boreal forest, [2] [3] [4] that corresponds with the Scandinavian Alpine tundra to the east and the Siberian Arctic tundra to the west inside the circumpolar tundra belt of the Northern Hemisphere.
The North American Arctic lies above the Arctic Circle. [3] It is part of the Arctic, which is the northernmost region on Earth. The western limit is the Seward Peninsula and the Bering Strait. The southern limit is the Arctic Circle latitude of 66° 33’N, which is the approximate limit of the midnight sun and the polar night. [4]
The Brooks–British Range tundra extends east and west along the Brooks Range which runs across northern Alaska and northeastern Yukon Territory. The Brooks Range is divided into western and eastern sections by the Anaktuvuk Pass. The Western Brooks Range is relatively low, while the Eastern Brooks Range is higher and more rugged, with larger ...
A list of tundra ecoregions from the World Wide Fund for Nature (WWF) includes: Antarctic realm [1] Adelie Land tundra. Adélie Land. Central South Antarctic Peninsula tundra. Antarctic Peninsula. Dronning Maud Land tundra. Queen Maud Land. East Antarctic tundra.