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The seabed (also known as the seafloor, sea floor, ocean floor, and ocean bottom) is the bottom of the ocean. All floors of the ocean are known as 'seabeds'. The structure of the seabed of the global ocean is governed by plate tectonics. Most of the ocean is very deep, where the seabed is known as the abyssal plain. Seafloor spreading creates ...
A subsurface ocean current is an oceanic current that runs beneath surface currents. [1] Examples include the Equatorial Undercurrents of the Pacific, Atlantic, and Indian Oceans, the California Undercurrent, [2] and the Agulhas Undercurrent, [3] the deep thermohaline circulation in the Atlantic, and bottom gravity currents near Antarctica. The ...
Earth's surface is dominated by the ocean, which forms 75% of Earth's surface.. An ocean world, ocean planet or water world is a type of planet or natural satellite that contains a substantial amount of water in the form of oceans, as part of its hydrosphere, either beneath the surface, as subsurface oceans, or on the surface, potentially submerging all dry land.
Oceans and marginal seas as defined by the International Maritime Organization. The sea is the interconnected system of all the Earth's oceanic waters, including the Atlantic, Pacific, Indian, Southern and Arctic Oceans. [1] However, the word "sea" can also be used for many specific, much smaller bodies of seawater, such as the North Sea or the ...
In the summer, warmer temperatures, melting sea and land ice, and increased sunlight cause the surface layer of the ocean to increase in temperature. This layer sits on top of the large winter mixed layer that was previously created and forms a seasonal pycnocline above the main pycnocline, with the winter mixed layer becoming a lower density ...
A deep ocean exists beneath the icy, cratered surface of Saturn’s moon Mimas, according to a new analysis of data from NASA’s Cassini mission.
Further out in the open ocean, they include underwater and deep sea features such as ocean rises and seamounts. The submerged surface has mountainous features, including a globe-spanning mid-ocean ridge system, as well as undersea volcanoes , [ 7 ] oceanic trenches , submarine canyons , oceanic plateaus and abyssal plains .
The Ocean Photographer of the Year awards announced the winners of its 2024 contest featuring stunning images of underwater wildlife. 12 award-winning underwater photos give rare glimpses beneath ...