At less than one millimeter thick, the ocean skin—the ocean’s uppermost layer—plays an outsized role in marine processes, orchestrating heat and chemical exchange between the sea and sky via diffusion. The water of the skin is cooler by about 0.2–0.3 K and has higher salinity than the water at even just 2 millimeters depth.
Click here for original story, Ocean skin helps regulate ocean carbon uptake, study finds
Source: Phys.org