Construct · 1 fields · 1 citations

downwelling: a standalone construct

One name. One construct. A landmark on the map.

● anchor · surface water sinking into the ocean interior Nearest construct by meaning·not indexed
downwelling1 CONSTRUCTDownwellingPICKARD & EMERY · DPO

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Physical oceanography

Surface water driven downward where currents converge

Downwelling is the downward movement of surface water into the ocean interior, occurring where wind or converging currents pile water up and force it to sink, and it is the counterpart of upwelling. Pickard and Emery's Descriptive physical oceanography describes how wind blowing along a coast, or the convergence at the centre of a subtropical gyre, drives this sinking. Because it carries oxygen-rich but nutrient-poor surface water downward, downwelling tends to depress the thermocline and leave the surface above it relatively unproductive, the opposite of the nutrient-rich conditions that upwelling creates.[1]

Unit
The downward vertical velocity of water at a convergence, in metres per day
Recovery means
Not applicable
Measured by
Inferred from wind stress and Ekman convergence, depressed isotherms/thermocline depth, and estimated vertical velocity

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Nearby constructs

convergence4 fields · 4 citationsjingle · one word, four constructsforce5 fields · 9 citationsjingle · one word, five constructsgyre1 fields · 2 citationsanchor · a standalone construct

References

  1. Pickard, G. L., & Emery, W. J. (1995). Descriptive physical oceanography: An introduction (5th ed.). Butterworth-Heinemann. ISBN 9780750627597

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