Drawdown
Encyclopedia
Drawdown has four distinct meanings:
- Drawdown (hydrology)Drawdown (hydrology)In water-related science and engineering there are two similar but distinct definitions in use for drawdown.*In subsurface hydrogeology, drawdown is the change in hydraulic head observed at a well in an aquifer, typically due to pumping a well as part of an aquifer test or well test.*In surface...
, a lowering of a reservoir or a change in hydraulic head in an aquifer, typically due to pumping a well. - Drawdown (economics)Drawdown (economics)The Drawdown is the measure of the decline from a historical peak in some variable ....
, decline in the value of an investment, below its all-time high. - Drawdown (printing), a test of a particular ink on a particular substrate accomplished by spreading the ink with a spatula
- Drawdown (general), a reduction or decrease
- Drawdown (polymer molding)