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drawdown

drawdown

1 7.2
A drop in the water level of a well or reservoir after pumping
  • noun
  • /ˈdrɔːˌdaʊn/
  • Specialized
translation icon : abatimiento
  • During the summer months, a significant drawdown occurred due to increased water usage for irrigation.
  • a drawdown of water

Examples

  • Drawdown of scarce water resources for irrigation.

    Academic text (2007)
  • As a lake or reservoir is drained, drawdown increases.

    Academic text (1996)
  • The drawdown is the difference between the in situ driving pressure and the driving pressure in the wellbore.

    Academic text (1991)
  • Drawdown is the vertical distance between the full-level stage of a reservoir or lake and any given water level lower than that stage.

    Academic text (1996)
  • In porous materials, pumping wells produce drawdowns that vary symmetrically with radial distance.

    Academic text (1997)
  • For instance, the level of water in a reservoir is a state; drawdowns represent a change in that state, and comparisons of these variables over time can reveal cause-and-effect relationships such as the impact of conservation policies on water usage.

    Academic text (1998)
  • In the St. Mary River in Alberta, Canada, for example, rapid drawdowns of river stage during spring have prevented the recruitment of young trees (Rood and Mahoney 1990).

    Academic text (1997)
  • A major complication arises, however, because the drawdowns in the confined aquifer will induce leakage from adjacent confining units.

    Academic text (2006)
  • After several weeks of continuous pumping, the drawdown in the aquifer became noticeable and affected nearby wells.

  • The drawdown of water levels in the reservoir was necessary to carry out maintenance work on the dam.

Synonyms

drainage
vsdrawdown
43 3.5

Removing liquid so it flows away from a place or object

is the resulting fall in water level caused by withdrawal
depletion
vsdrawdown
40 5.3

A decrease in how much of something is left, often until it is used up

is the specific drop in a well or reservoir level from pumping

How Much

depletion
40 5.3
drawdown
  • Specialized
1 7.2
reduction
451 3.2

Surface Forms

drawdown singular
drawdowns plural

Morphology

drawdown = draw (transparent) = down + draw

Nominalization of 'draw down' describing lowering of water level; the components directly indicate reduction. [Postprocessing: moved 'down' from base_words to prefix]

Etymology

Drawdown comes from the parts draw ('take out', as when you 'draw water') and down ('lower'). Think of people pulling water out and the level going down. So, a drawdown is the fall in water level when you pump or remove water.