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
Economy
Arctic Ocean
Economy - overview:
Economic activity is limited to the exploitation of natural resources, including petroleum, natural gas, fish, and seals.
Transportation
Arctic Ocean
Ports and terminals:
Churchill (Canada), Murmansk (Russia), Prudhoe Bay (US)
Transportation - note:
sparse network of air, ocean, river, and land routes; the Northwest Passage (North America) and Northern Sea Route (Eurasia) are important seasonal waterways
Transnational Issues
Arctic Ocean