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According to NOAA, there are five ocean basins in the world - Arctic, Atlantic, Indian, Pacific, and Southern. However, there is only one Global Ocean. The ocean covers about 71% of the surface of the Earth.
As the world's ocean is the principal component of Earth's hydrosphere, it is integral to life on Earth, forms part of the carbon cycle and water cycle, and – as a huge heat reservoir – influences climate and weather patterns.
Since the year 2000, the International Hydrographic Organization (IHO) started recognizing 5 oceans: Pacific, Atlantic, Indian, Arctic and Southern Ocean.
Historically, there were just four oceans, but we now recognize five different oceans: the Pacific, Atlantic, Arctic, Indian and Southern Oceans. The Pacific, Atlantic and Indian Oceans freeze together around Antarctica. How Do We Separate the World's Oceans?
There is one ‘world ocean,’ but researchers often separate it into the Pacific, Atlantic, Indian, Southern, and Arctic oceans. Covering nearly 71 percent of Earth’s surface, the oceans have an average depth of 3,688 metres (12,100 feet).
The Pacific Ocean is by far the world's largest ocean at 60,060,700 square miles (155,557,000 sq km). According to the CIA World Factbook, it covers 28 percent of the Earth and is equal in size to nearly all of the land area on the Earth.
Just how many oceans does our planet have? Historically, many maps and textbooks have presented a four-ocean model: the Pacific, the Atlantic, the Indian, and the Arctic. The first three are the major ones, while the Arctic Ocean tends to be less prominent in people’s minds.
Historically, there are four named oceans: the Atlantic, Pacific, Indian, and Arctic. However, most countries - including the United States - now recognize the Southern (Antarctic) as the fifth ocean.
The ocean is a huge body of saltwater that covers about 71 percent of Earth’s surface. The planet has one global ocean, though oceanographers and the countries of the world have traditionally divided it into five distinct regions: the Pacific, Atlantic, Indian, and Arctic oceans.
The ocean is a continuous body of salt water that covers more than 70 percent of the Earth's surface. Ocean currents govern the world's weather and churn a kaleidoscope of life.