Arctic Ocean
The Arctic Ocean is the smallest and shallowest of the world's five oceanic divisions.
The Arctic Ocean is the smallest and shallowest of the world's five oceanic divisions. It spans an area of approximately 14,060,000 km2 (5,430,000 sq mi) and is the coldest of the world's oceans. The International Hydrographic Organization (IHO) recognizes it as an ocean, although some oceanographers call it the Arctic Mediterranean Sea or North Polar Sea.
It has also been described as being approximately equivalent to an estuary of the Atlantic Ocean.