Where Are the Highest Ocean Surface Salinities Found?

The salinity of surface seawater is controlled primarily by the balance between evaporation and precipitation. As a result the highest salinities are found in the so-called sub-tropical central gyre regions centered at about 20° to 30° North and South, where evaporation is extensive but rainfall is minimal.

Where are ocean surface salinities generally the highest?

The saltiest locations in the ocean are the regions where evaporation is highest or in large bodies of water where there is no outlet into the ocean. The saltiest ocean water is in the Red Sea and in the Persian Gulf region (around 40‰) due to very high evaporation and little fresh water inflow.

Where on earth do you find high sea surface salinity?

Sea Surface Salinity

Notice the higher salinity in the Atlantic than the Pacific, due to the greater rainfall amounts in the Pacific, and the lower salinity at the mouths of major rivers.

Alexander Ross

Alexander Ross

Gaming, Esports & Interactive Media Writer

Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.