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The equatorial region
record high salinity compared to the polar region.why?
Answers
Answer:
Sea surface salinity is greatest not right along the equator, but rather in tropical regions just to the north and south of the equator. Surface and subsurface currents have different impacts on surface salinity in each ocean. For example, the Atlantic surface is generally more saline because less saline water sinks and flows beneath the surface in a subsurface current that is not as strong in other oceans. However, the global pattern of greater salinity in the non-equatorial tropics is due to global patterns of insolation (effective strength of solar radiation) and precipitation.
Answer:
Near the equator, the tropics receive the most rain on a consistent basis. As a result, the fresh water falling into the ocean helps decrease the salinity of the surface water in that region. ... Fresh water, in the form of water vapor, moves from the ocean to the atmosphere through evaporation causing the higher salinity.