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Encyclopedia > Isopycnal

An isopycnal is a surface of constant water density. In the ocean, as the depth increases, so too does the density. Varying degrees of salinity and temperature act to modify the density of water, and the denser water always lies below the less dense water. Because of the action of winds and currents, isopycnals are not always level. Impact of a drop of water. ... Density (symbol: ρ - Greek: rho) is a measure of mass per volume. ... The worlds oceans as seen from the South Pacific Ocean Oceans (from Okeanos in Greek, the ancient Greeks noticing the strong current that flowed off Gibraltar and assuming it was a great river) cover almost three quarters (71%) of the surface of the Earth, and nearly half of the... Annual mean sea surface salinity for the World Ocean. ... In thermodynamics, temperature is the physical property of a system that underlies the common notions of hot and cold —something that is hotter has the greater temperature. ... Wind is the roughly horizontal movement of air (as opposed to an air current) caused by uneven heating of the Earths surface. ... A current is a movement or flow of fluids, especially water in a river or ocean. ...

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