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SlideshowReport

Variations in Ocean Water Density with Depth

Description
Density is mass per unit volume – how heavy something is for its size
Determines the water’s vertical position in the ocean
Factors affecting seawater density  
Salinity
Temperature – the greatest influence

Variations with depth
Low-latitudes
Low density at the surface
Density increases rapidly with depth (pycnocline) because of colder water
High-latitudes
High-density (cold) water at the surface
Little change in density with depth
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