Portal:Oceans
The Oceans Portal
A portal dedicated to oceans, seas, oceanography and related topics
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Introduction
Earth's ocean |
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Main five oceans division: Further subdivision: Marginal seas |
The ocean is the body of salt water that covers approx. 70.8% of Earth. In English, the term ocean also refers to any of the large bodies of water into which the world ocean is conventionally divided. The following names describe five different areas of the ocean: Pacific, Atlantic, Indian, Antarctic/Southern, and Arctic. The ocean contains 97% of Earth's water and is the primary component of Earth's hydrosphere; thus the ocean is essential to life on Earth. The ocean influences climate and weather patterns, the carbon cycle, and the water cycle by acting as a huge heat reservoir. (Full article...)
A sea is a large body of salty water. There are particular seas and the sea. The sea commonly refers to the World Ocean, the wider body of seawater. Particular seas are either marginal seas, second-order sections of the oceanic sea (e.g. the Mediterranean Sea), or certain large, nearly landlocked bodies of water. (Full article...)
Oceanography (from Ancient Greek ὠκεανός (ōkeanós) 'ocean' and γραφή (graphḗ) 'writing'), also known as oceanology, sea science, ocean science, and marine science, is the scientific study of the ocean. It is an Earth science, which covers a wide range of topics, including ecosystem dynamics; ocean currents, waves, and geophysical fluid dynamics; plate tectonics and seabed geology; and fluxes of various chemical substances and physical properties within the ocean and across its boundaries. These diverse topics reflect multiple disciplines that oceanographers utilize to glean further knowledge of the world ocean, including astronomy, biology, chemistry, geography, geology, hydrology, meteorology and physics. Paleoceanography studies the history of the oceans in the geologic past. An oceanographer is a person who studies many matters concerned with oceans, including marine geology, physics, chemistry, and biology. (Full article...)
Selected article -
A swell, also sometimes referred to as ground swell, in the context of an ocean, sea or lake, is a series of mechanical waves that propagate along the interface between water and air under the predominating influence of gravity, and thus are often referred to as surface gravity waves. These surface gravity waves have their origin as wind waves, but are the consequence of dispersion of wind waves from distant weather systems, where wind blows for a duration of time over a fetch of water, and these waves move out from the source area at speeds that are a function of wave period and length. More generally, a swell consists of wind-generated waves that are not greatly affected by the local wind at that time. Swell waves often have a relatively long wavelength, as short wavelength waves carry less energy and dissipate faster, but this varies due to the size, strength, and duration of the weather system responsible for the swell and the size of the water body, and varies from event to event, and from the same event, over time. Occasionally, swells that are longer than 700m occur as a result of the most severe storms.
Swell direction is the direction from which the swell is moving. It is given as a geographical direction, either in degrees, or in points of the compass, such as NNW or SW swell, and like winds, the direction given is generally the direction the swell is coming from. Swells have a narrower range of frequencies and directions than locally generated wind waves, because they have dispersed from their generation area and over time tend to sort by speed of propagation with the faster waves passing a distant point first. Swells take on a more defined shape and direction and are less random than locally generated wind waves. (Full article...)Interesting facts -
- When Norman Heathcote climbed the St Kilda sea stack Stac Lee (pictured) in 1899, he found the climbing "comparatively easy" but getting ashore had been "a most appalling undertaking".
- The The Marine Mammal Center has rescued over 23,000 marine mammals, and also produces important scientific discoveries regarding marine chemistry.
- Pastis magnate Paul Ricard created the Paul Ricard Oceanographic Institute on the Île des Embiez, and the Universal Exposition of Wines and Spirits on the Île de Bendor.
Selected list articles and Marine habitat topics
Marine habitats |
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Coastal habitats |
Ocean surface |
Open ocean |
Sea floor |
- List of oceans
- List of ancient oceans
- List of seas
- List of circumnavigations
- List of cruise lines
- List of largest lakes and seas in the Solar System
- List of marine biologists
- List of marine ecoregions
- List of maritime explorers
- List of naval battles
- List of ocean liners
- List of oceanographic institutions and programs
- List of oldest surviving ships
- List of rogue waves
- List of seafood dishes
- List of submarine topographical features
Tasks
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General images -
Related portals
In the news
- 26 July 2024 – Finland–Russia relations
- Finland reports that a Russian Navy Baltic Sea fleet vessel trespassed on Finnish territorial waters in the eastern Gulf of Finland. (Reuters)
- 24 July 2024 –
- Polish divers announce that they have discovered a 19th-century shipwreck in the Baltic Sea off the coast of Sweden, containing crates of champagne and porcelain. (France 24)
- 21 July 2024 – Red Sea crisis
- 2024 Israeli strikes on Yemen
- The death toll from yesterday's Israeli airstrikes on Al Hudaydah, Yemen, increases to six. (Al Jazeera)
- The Houthis target Eilat, Israel, with multiple ballistic missiles, in response to yesterday's airstrikes in Yemen. (Sky News)
WikiProjects
Topics
Categories
Associated Wikimedia
The following Wikimedia Foundation sister projects provide more on this subject:
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Commons
Free media repository -
Wikibooks
Free textbooks and manuals -
Wikidata
Free knowledge base -
Wikinews
Free-content news -
Wikiquote
Collection of quotations -
Wikisource
Free-content library -
Wikiversity
Free learning tools -
Wiktionary
Dictionary and thesaurus
Admiralty law
Admiralty law |
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History |
Features |
Contract of carriage/Charterparty |
Parties |
Judiciaries |
International conventions |
International organizations |
Need assistance?
Do you have a question about oceans, seas or oceanography that you can't find the answer to? Consider asking it at the Wikipedia reference desk.
External media
- World Ocean Database and World Ocean Atlas Series – from the U.S. National Centers for Environmental Information, National Oceanic and Atmospheric Administration. Includes the World Ocean Atlas.
- European Atlas of the Seas – the European Atlas of the Seas, from the European Commission
- NOAA Research – NOAA research news, Oceanic and Atmospheric Research (OAR)
- Ocean Research – from The World Ocean Observatory
- Ocean Biodiversity Information System – "a global open-access data and information clearing-house on marine biodiversity for science, conservation and sustainable development"