Surface water circulation

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Presentation transcript:

Surface water circulation Gravity - Tides Wind Wind

Thermohaline circulation Process is driven by: DENSITY Cold salty water

Thermohaline Circulation Global Conveyer Belt The conveyor belt is also a vital component of the global ocean nutrient and carbon dioxide cycles. Warm surface waters are depleted of nutrients and carbon dioxide, but they are enriched again as they travel through the conveyor belt as deep or bottom layers. The base of the world’s food chain depends on the cool, nutrient-rich waters that support the growth of algae and seaweed. increased rainfall in the North Atlantic, and the melting of glaciers and sea ice, the influx of warm freshwater onto the sea surface could block the formation of sea ice, disrupting the sinking of cold, salty water.