Battle of Backbone Mountain

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

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Introduction

Surface view of the Atlantic Ocean

The ocean is the body of salt water that covers ~70.8% of the Earth. In English, the term ocean also refers to any of the large bodies of water into which the world ocean is conventionally divided. Distinct names are used to identify 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 the 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...)

Waves in Pacifica, California

A sea is a large body of salty water. There are particular seas and the sea. The sea commonly refers to the 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 oceans. 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...)

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A replica of the Portuguese caravel Caravela Vera Cruz. These small, highly manoeuverable ships played an important role in overseas exploration.

The Age of Discovery also known as the Age of Exploration, part of the early modern period and largely overlapping with the Age of Sail, was a period from approximately the 15th century to the 17th century, during which seafarers from a number of European countries explored, colonized, and conquered regions across the globe. The Age of Discovery was a transformative period in world history when previously isolated parts of the world became connected to form the world system and laid the groundwork for globalization. The extensive overseas exploration, particularly the European colonization of the Americas, with the Spanish and Portuguese, and later the British, at the forefront, spurred global trade. The interconnected global economy of the 21st century has its roots in the expansion of trade networks during this era.

The exploration also created colonial empires and marked an increased adoption of colonialism as a government policy in several European states. As such, it is sometimes synonymous with the first wave of European colonization. The colonization reshaped power dynamics causing geopolitical shifts in Europe and creating new centers of power beyond Europe. Having set human history on the global common course, the legacy of the Age still shapes the world today. (Full article...)
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Painting of two sailing ships, sails fully rigged, exchanging cannonfire on a choppy blue-green sea

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In the news

29 April 2024 – Israel–Hamas war
Red Sea crisis
Houthi forces strike four ships in the Red Sea and damage the Malta-flagged, Greece-owned bulk carrier Cyclades. (The Jerusalem Post) (AP)
12 April 2024 – Iran–Israel proxy conflict
Germany tells its citizens to leave Iran immediately, saying that "air, land and sea transport routes" will likely be affected by military action in the region. (Reuters)
8 April 2024 – Russian invasion of Ukraine
Ukraine claims to have damaged the Russian Navy missile ship Serpukhov [ru] in the Baltic Sea near Kaliningrad. (Kyiv Independent)
1 April 2024 –
North Korea fires a ballistic missile into the Sea of Japan near South Korean territory. (AP)

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Oceanography

Associated Wikimedia

The following Wikimedia Foundation sister projects provide more on this subject:

  • 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

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