Þversniðsmynd af seltu og hita i Atlantshafi. Gögn ur Levitus gagnasafninu.
This image shows the zonally averaged temperature and salinity structure for the Atlantic Ocean, taken from the Levitus data set.

Takð eftir hversu bæði hiti og selta a norðurhveli eru olik þvi sem gerist a suðurhveli.
Notice how there are stark differences between the two hemispheres in both temperature and salinity.