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Portal:Oceans

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Wikipedia portal for content related to Oceans

The Oceans Portal
A portal dedicated to oceans, seas, oceanography and related topics

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Introduction

Earth's ocean, showing common divisions
Map with five-oceans (approx. boundaries)
Earth's ocean

Main five oceans division:

Further subdivision:

Marginal seas
Surface view of theAtlantic Ocean

Theocean is the body ofsalt water that covers approximately 70.8% ofEarth. The ocean is conventionally divided into large bodies of water, which are also referred to asoceans (in descending order: thePacific Ocean, theAtlantic Ocean, theIndian Ocean, theAntarctic/Southern Ocean, and theArctic Ocean), and are themselves mostly divided intoseas,gulfs andsubsequent bodies of water. The ocean contains 97% ofEarth's water and is the primary component of Earth'shydrosphere, acting as a hugereservoir of heat forEarth's energy budget, as well as for itscarbon cycle andwater cycle, forming the basis forclimate andweather patterns worldwide. The ocean is essential tolife on Earth, harbouring most of Earth's animals andprotist life, originatingphotosynthesis andtherefore Earth's atmospheric oxygen, still supplying half of it. (Full article...)

Waves in Pacifica, California

Asea is a largebody ofsalt water. There areparticular seas andthe sea.The sea commonly refers to theocean, the interconnected body ofseawaters that spans most of Earth. Particular seas are eithermarginal seas, second-order sections of the oceanic sea (e.g. theMediterranean Sea), or certain large, nearly landlocked bodies of water. (Full article...)

Oceanography (from Ancient Greek ὠκεανός (ōkeanós) 'ocean' and γραφή (graphḗ) 'writing'), also known asoceanology,sea science,ocean science, andmarine science, is the scientific study of theocean, including itsphysics,chemistry,biology, andgeology. (Full article...)

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Holstein, an oil drilling platform at Green Canyon in theGulf of Mexico, approximately 100 miles from land.

Offshore drilling is a mechanical process where awellbore is drilled below the seabed. It is typically carried out in order to explore for and subsequently extractpetroleum that lies in rock formations beneath the seabed. Most commonly, the term is used to describe drilling activities on thecontinental shelf, though the term can also be applied to drilling inlakes,inshore waters andinland seas.

Offshore drilling presents all environmental challenges, both offshore and onshore from the producedhydrocarbons and the materials used during the drilling operation. Controversies include the ongoingUS offshore drilling debate. (Full article...)

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Interesting facts -show different entries

Heather Willauer holding samples of synthetic fuel

Selected list articles and Marine habitat topics

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The following are images from various ocean-related articles on Wikipedia.

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In the news

23 November 2025 –
The long-dormantHayli Gubbi volcano erupts in theAfar Region ofEthiopia for the first time in nearly 12,000 years, sending ash plumes across theRed Sea towardsOman andYemen, and causing flight disruptions across theArabian Peninsula andSouth Asia.(AP)
19 November 2025 –Russia–United Kingdom relations
Russian Navyspy shipYantar uses lasers to disruptRoyal Air Force aircraft monitoring the vessel in theNorth Sea for the first time. The ship was being followed by aRoyal Navy frigate withPoseidon P-8 planes deployed to track its movements.(BBC News)
13 November 2025 –
Four people are killed after twomigrant vessels carrying nearly 100 passengers capsize off the coast ofAl-Khums,Murqub District,Libya.(Reuters)
20 October 2025 –Emirates SkyCargo Flight 9788
Two airportground crew are killed when anEmiratescargo plane crash-lands and strikes a service vehicle atHong Kong International Airport, before falling intothe sea.(RTHK)
16 October 2025 –Red Sea crisis
Israeli attacks on Yemen

WikiProjects

Topics

Antarctic/Southern Ocean
Arctic Ocean
Atlantic Ocean
Indian Ocean
Pacific Ocean
Endorheic basins
Others
Waves
Upwelling





Antarctic bottom water
Circulation
Tides
Landforms
Plate
tectonics
Ocean zones
Sea level
Acoustics
Satellites
Related
Currents
Arctic Ocean
Atlantic Ocean
Indian Ocean
Pacific Ocean
Southern Ocean
Gyres
Major gyres
Other gyres
Related
Marine
Marine
life
Marine
habitats
Issues

More topics
More articles related to Oceans
African seas
Oceans
and seas
Gulfs
and bays
Straits
Historical
seas
Landforms
Coastal and oceanic landforms

Dois Irmãos - Fernando de Noronha
Beaches
River mouths
Processes
Management
Related
Sources of law
of the sea
Global
Specific
international straits
Maritime canals of
global significance
Other regional
and local
Main and related
concepts
International courts
History
Fish
Shellfish
Other seafood
Processed
seafood
Seafood dishes
Health hazards
Advisory services
Animal welfare
Related topics
  • Briefly held the title before the preceding ship reclaimed it†
  • Shared record‡

Categories

Category puzzle
Category puzzle
Select [►] to view subcategoriesOceans


Seas


Oceanography

Associated Wikimedia

The followingWikimedia Foundation sister projects provide more on this subject:

Admiralty law

Admiralty and maritime law
History
Features
Contract of carriage /charterparty
Parties
Judiciaries
International organizations
International conventions
International Codes

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