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The Sargasso Sea is a distinctive area of open ocean situated within the North Atlantic Subtropical Gyre, bounded on all sides by the clockwise flow of major ocean currents.  The Gulf Stream and North Atlantic Drift form the western & northern boundaries, while the Canary Current forms the eastern boundary and the North Equatorial Current and Antilles Current form the southern boundary.  As these currents vary, the precise location of the Sargasso Sea is also variable, but it is most commonly situated in the area between latitude 25° and 32° north and longitude 35° and 70° west (Ryther 1956, Coston-Clements et al. 1991). The Sargasso Sea, located entirely within the Atlantic Ocean, is the only sea without a land boundary. Since this area is defined by boundary currents, its borders are dynamic, correlating roughly with the Azores High Pressure Center for any particular season. The Sargasso Sea is a vast patch of ocean named for a genus of free-floating seaweed called Sarga...

  The AMOC is a large system of ocean currents. It is the Atlantic branch of the ocean conveyor belt or Thermohaline circulation (THC), and distributes heat and nutrients throughout the world’s ocean basins.  It carries the warm surface water from the tropics to  northwards into the North Atlantic.  This ocean current system is driven by differences in temperature and salt content i.e. the water’s density.  The tropical warm water flows northwards ,due to high temperature evaporation occurs, which increases the amount of salt.  The temperature of water drops at north. Low temperature and a high salt content make the water denser, and this dense water sinks deep into the ocean . This cold and dense water creeps towards the south to the tropics, typically 2–4 km below the surface. Eventually, it gets pulled back to the surface and warms in a process called “upwelling” and the circulation is complete. The global circulation process keeps on mixing the water so...