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Factors that set surface ocean currents into motions are the global circulation cells (Hadley, Ferrel, Polar), the Coriolis effect, and the continental deflection.
clockwiseThe circulation of ocean currents in the Southern Hemisphere is generally:counter clockwise
Global Conveyor Belt
Global Ocean Conveyor
The term thermohaline circulation ( THC ) refers to the part of the large-scale ocean circulation that is driven by global density gradients created by surface heat and freshwater fluxes
Global Ocean Conveyor
Ocean currents form
Continental deflections,the Coriolis effect and global winds all effect surface ocean currents.
The ocean does move in circles. If you look at any map showing ocean currents, you'll see that the majority of them make big, somewhat distorted circles.The continents are in the way, so the ocean currents have a rather complicated circulation pattern (see "Thermohaline Circulation").
thermohaline circulation
The study of tides, waves, currents and the interaction between the ocean and the atmosphere is a part of physical oceanogrpahy. Physical oceanographers study the physical properties of the ocean such as temperature, density, salinity, circulation, currents and tides.
Climate(: