Portal:Oceans

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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.

landlocked bodies of water. (Full article...
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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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Simplified schematic of only the lunar portion of Earth's tides, showing (exaggerated) high tides at the sublunar point and its antipode for the hypothetical case of an ocean of constant depth without land, and on the assumption that Earth is not rotating; otherwise there is a lag angle. Solar tides not shown.

Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon (and to a much lesser extent, the Sun) and are also caused by the Earth and Moon orbiting one another.

Tide tables can be used for any given locale to find the predicted times and amplitude (or "tidal range").

The predictions are influenced by many factors including the alignment of the Sun and Moon, the
semi-diurnal tides—two nearly equal high and low tides each day. Other locations have a diurnal tide—one high and low tide each day. A "mixed tide"—two uneven magnitude tides a day—is a third regular category. (Full article...
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Interesting facts - show different entries

An aerial view of NOAAS Pisces (R 226)

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

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)
31 March 2024 – Visa policy of the Schengen Area
EU citizens could get easier access to the European Union. (France 24)
28 March 2024 – 2023–24 South-West Indian Ocean cyclone season
Cyclone Gamane makes landfall in Madagascar, killing at least eleven people and causing widespread flooding, according to local officials. (AP)

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