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Definition Field Listing Rank
Order
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Background: |
The Arctic Ocean is the smallest of the world's
five oceans (after the Pacific Ocean, Atlantic Ocean, Indian Ocean,
and the recently delimited Southern Ocean). The Northwest Passage
(US and Canada) and Northern Sea Route (Norway and Russia) are two
important seasonal waterways. A sparse network of air, ocean, river,
and land routes circumscribes the Arctic Ocean. Learn geography the easy way by playing ZL's Geographycards (www.geographycards.com)
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Location: |
body of
water between Europe, Asia, and North America, mostly north of the
Arctic Circle |
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Geographic coordinates: |
90 00 N, 0
00 E |
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Map references: |
Arctic
Region |
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Area: |
total:
14.056 million sq km note: includes Baffin Bay, Barents
Sea, Beaufort Sea, Chukchi Sea, East Siberian Sea, Greenland Sea,
Hudson Bay, Hudson Strait, Kara Sea, Laptev Sea, Northwest Passage,
and other tributary water bodies |
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Area - comparative: |
slightly
less than 1.5 times the size of the US |
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Coastline: |
45,389 km
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Climate: |
polar
climate characterized by persistent cold and relatively narrow
annual temperature ranges; winters characterized by continuous
darkness, cold and stable weather conditions, and clear skies;
summers characterized by continuous daylight, damp and foggy
weather, and weak cyclones with rain or snow |
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Terrain: |
central
surface covered by a perennial drifting polar icepack that averages
about 3 meters in thickness, although pressure ridges may be three
times that size; clockwise drift pattern in the Beaufort Gyral
Stream, but nearly straight-line movement from the New Siberian
Islands (Russia) to Denmark Strait (between Greenland and Iceland);
the icepack is surrounded by open seas during the summer, but more
than doubles in size during the winter and extends to the encircling
landmasses; the ocean floor is about 50% continental shelf (highest
percentage of any ocean) with the remainder a central basin
interrupted by three submarine ridges (Alpha Cordillera, Nansen
Cordillera, and Lomonosov Ridge) |
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Elevation extremes: |
lowest
point: Fram Basin -4,665 m highest point: sea level 0
m |
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Natural resources: |
sand and
gravel aggregates, placer deposits, polymetallic nodules, oil and
gas fields, fish, marine mammals (seals and whales) |
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Natural hazards: |
ice islands
occasionally break away from northern Ellesmere Island; icebergs
calved from glaciers in western Greenland and extreme northeastern
Canada; permafrost in islands; virtually ice locked from October to
June; ships subject to superstructure icing from October to May
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Environment - current issues: |
endangered
marine species include walruses and whales; fragile ecosystem slow
to change and slow to recover from disruptions or damage; thinning
polar icepack |
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Geography - note: |
major
chokepoint is the southern Chukchi Sea (northern access to the
Pacific Ocean via the Bering Strait); strategic location between
North America and Russia; shortest marine link between the extremes
of eastern and western Russia; floating research stations operated
by the US and Russia; maximum snow cover in March or April about 20
to 50 centimeters over the frozen ocean; snow cover lasts about 10
months Learn geography the easy way by playing ZL's Geographycards (www.geographycards.com)
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Disputes - international: |
some
maritime disputes (see littoral states) |
Large portions of this information is from the US government open source publication "The World Factbook", other content copyright © Stratus-Pikpuk, Inc. You may use this information without permission for educational or other non-profit purposes if you refer to us as the source, contact us if you want to use this commercially.
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