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Polar bear in Manitoba, Canada. November 2004. Polar seas is a collective term for the Arctic Ocean (about 4-5 percent of Earth's oceans) and the southern part of the Southern Ocean (south of Antarctic Convergence, about 10 percent of Earth's oceans). In the coldest years, sea ice can cover around 13 percent of the Earth's total surface at its ...
The Open Polar Sea was a conjectured ice-free body of water that was believed to encircle the North Pole.Although this theory was widely accepted and served as a basis for many exploratory expeditions aimed at reaching the North Pole by sea or discovering a navigable route between Europe and the Pacific via the North Pole, it was ultimately proven to be untrue.
The Arctic Ocean is the smallest and shallowest of the world's five oceanic divisions. [1] It spans an area of approximately 14,060,000 km 2 (5,430,000 sq mi) and is the coldest of the world's oceans.
During these same months in the northern regions, there will be 24 hours of daylight. Arctic regions also receive a lot of snowfall. The Arctic Basin has snow 320 days out of the year while the Arctic Seas have snow cover 260 days a year. [8] The thickness of the snow averages 30–40 cm (12–16 in). [8]
Polar Sea may refer to: The Arctic Ocean; The Southern Ocean; USCGC Polar Sea, a United States Coast Guard icebreaker; The Open Polar Sea, a hypothesized ice-free ...
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The word Arctic comes from the Greek word ἀρκτικός (arktikos), "near the Bear, northern" [4] and from the word ἄρκτος (arktos), meaning bear. [5] The name refers either to the constellation known as Ursa Major, the "Great Bear", which is prominent in the northern portion of the celestial sphere, or to the constellation Ursa Minor, the "Little Bear", which contains the celestial ...
Where sea ice overlays deep ocean, it is proposed that cells trapped in multiyear ice brine pockets are reconnected to the water column below and quickly colonize nearby ice of all ages. This is known as the multiyear sea ice repository hypothesis. [12] This seeding source has been demonstrated in diatoms, which dominate sympagic blooms.