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downwelling

[doun-wel-ing] /ˈdaʊnˌwɛl ɪŋ/
noun, Oceanography
1.
a downward current of surface water in the ocean, usually caused by differences in the density of seawater.
Origin
1965-1970
1965-70; down1 + well2 + -ing1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for downwelling
  • Huge amounts of seawater sink at known downwelling sites every winter, with the water heading south when it reaches the bottom.
  • downwelling occurs when the water on the surface of the sea becomes denser than the water beneath it and so it sinks.
  • Sea surface temperature and downwelling radiation data are also necessary.
  • Negative values imply downwelling, the onshore advection of surface waters accompanied by a downward displacement of water.
  • Bed temperatures in downwelling areas generally reflect river temperatures.
  • While the band is at rest, below the receiving enclosure, the instrument measures downwelling global radiation.

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