Question

Where would you expect surface water to sink and initiate a deep-water current in the atlantic ocean?

Answer 1

The North Atlantic Deep Water (NADW) is the place where surface water sinks and initiates a deep-water current in the Atlantic Ocean.

Further Explanation:

North Atlantic Deep Water:  It is a deep mass of water that is formed in the Atlantic Ocean. The thermohaline circulation (sometimes described as Southern overturning circulation) of the oceans involves the flow of the surface water in the North Atlantic Ocean from the Southern hemisphere. The water flowing towards north gets modified when it mixes with other water masses and evaporation, which results in increased salinity. The water begins to cool and sink when it reaches the North Atlantic. It happens due to increased salinity and decreased the temperature of the water that increases the density. It is the outflow of thick deep layer water that has high salinity, nutrient minima, high oxygen content, and chlorofluorocarbons.

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Answer details:

Grade: High School

Subject: Geography

Chapter: Biosphere

Keywords: Where would you expect surface water to sink and initiate a deep-water current in the Atlantic Ocean, North Atlantic Deep Water, Atlantic Ocean, thermohaline circulation, North Atlantic Oscillation, Southern hemisphere .

Answer 2

It is in the North Atlantic Deep Water (NADW) where surface water sinks and initiates a deep-water current in the Atlantic Ocean. The deep-water in NADW, characterized its high salinity, is caused by a thermohaline circulation, wherein warm surfaces of the Southern Hemisphere flow into the North Atlantic.