Science · 6 pages · 12 min
How upwelling feeds a coast
Wind that drives surface water offshore lets colder, nutrient-rich water rise along the coast.
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From the opening
Upwelling is a rising of deeper water to the surface along a coast, and it feeds the coast because that deeper water carries nutrients that surface plankton have used up. The plankton grow on the delivery, and the animals that eat them follow. The opening covers wind and Ekman transport offshore, cold water rising to replace it, and nutrients from below the sunlit zone.
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Inside
- Wind and Ekman transport offshore
- Cold water rising to replace it
- Nutrients from below the sunlit zone
- What happens when the wind reverses
- Where the idea stops applying
- A distinction worth keeping
Sources
- Coastal upwelling and Ekman transport
- Nutrient supply to eastern-boundary fisheries