Thermohaline circulation refers to: Global circulation caused by temperature and salinity differences Vertical circulation driven by wind Horizontal currents near the ocean surface Tidal movements along the coast

Thermohaline circulation refers to global circulation caused by temperature and salinity differences. This type of circulation is driven by variations in water density, which are influenced by temperature (thermo) and salinity (haline) differences. These differences cause water to move vertically, creating a global circulation pattern.