Question

Explain the distribution of salinity around the Tropic of Cancer and tropic of Capricorn.

Answer 1

1. The salinity around the Tropic of Cancer is about 36 parts per thousand, mainly due to high temperatures causing high evaporation.
2. The region is more landlocked, and limited ocean current movement increases salinity further.
3. In contrast, around the Tropic of Capricorn, salinity is about 35 parts per thousand because the Southern Hemisphere has more open oceans and fewer landmasses.
4. Ocean currents in the south freely circulate and help regulate salinity in the region.