Ocean convection currents move the deep cold water to the surface of oceans.
An upwelling is a current in the ocean that brings deep, cold water to the ocean surface.
Thermohaline circulation brings oxygen rich water to the deep ocean.
Brings nutrients to the surface water. *Dawn.
deep, cold water to the ocean surface
The thermohaline circulation is driven by surface heat (insolaration) and freshwater flows. These change the density of the ocean's water and gravity does the work.
The circulation of cold and warm water between the poles and the equator, and the rotation of the earth, cause ocean currents to flow.
tides
Current
Deep ocean circulation(90% of ocean water) is caused by differences in temperature, salinity and suspended load. It is referred to as "Thermohaline"- meaning heat and salt- circulation.
This section of the ocean from floor to surface is called the water column.
Ice is a form of water that will float on the surface of the ocean.
Deep water ocean current