= Barrier layer (oceanography)
{wiki=Barrier_layer_(oceanography)}
In oceanography, a barrier layer refers to a distinct layer in the ocean that separates two different water masses, typically characterized by differing temperatures and salinities. This layer acts as a barrier to mixing between the upper and lower layers of the ocean. The barrier layer is most commonly observed in tropical and subtropical regions, where warm, less dense surface waters overlay cooler, denser waters.
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