its mainly because of tetronic platlets fond under the earth and the wind. some may occur due to heating up in one part and cooling up in other part
warmer, lighter equatorial. Cold sinking cold salty polar. Warm rising equatorial.
the ocean because its the largest water source on earth
The driving force of deep-ocean circulation is primarily the sinking of cold, dense water at high latitudes due to its higher density. This process is known as thermohaline circulation, where temperature and salinity differences create variations in water density, causing water masses to sink and drive the global ocean circulation.
Current
This occurs because of gravity. Water runs from the highest places (mountains and plateaus, or where rainfall occurs) to the lowest point, into the ocean.
The Gulf Stream circulates around the world, warming up different parts of the planet for different reasons. It's really important to our climate and without out we'd be uh..stuffed. :)
Deep water ocean current
Heat.
The Arctic Ocean plays a crucial role in deep ocean circulation, particularly through the formation of dense water masses like Arctic Bottom Water (ABW) and Greenland Sea Deep Water. These cold, dense waters sink and contribute to the global thermohaline circulation, influencing the Atlantic Meridional Overturning Circulation. Additionally, the inflow of warmer, saltier water from the Atlantic, such as the North Atlantic Current, affects the overall dynamics of deep ocean circulation in the region.
Not at all because when the water evaporates the salt remains unchanged
Downwelling is a crucial process in thermohaline circulation, as it occurs when dense, cold, and salty water sinks into the ocean depths, particularly in polar regions. This sinking water drives the global conveyor belt of ocean currents, facilitating the transport of heat and nutrients across the world's oceans. As downwelling occurs, it helps regulate climate by redistributing warm and cold water, influencing weather patterns and marine ecosystems. Ultimately, downwelling is a key mechanism that maintains the balance of oceanic circulation and global climate systems.
Thermohaline circulation is the process of cold water at the poles creeping along the ocean floor. It meets with north and south polar water creates a dawdling subsurface circulation.