Recession curve: Difference between revisions
From Glossary of Meteorology
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<div class="definition"><div class="short_definition">(''Or'' master recession curve.) A smoothed composite of the [[recessions]] of several observed [[hydrographs]], drawn to represent the characteristic time graph of decreasing total [[runoff]] for a [[drainage area]] after passage of a peak flow.</div><br/> <div class="paragraph">Curves of this type, designed to characterize the nature of a drainage area, may be constructed as a plot of flow ([[stage]] of [[discharge]]) versus time, or as a plot of flow versus flow at some fixed later interval; also, separate recession curves may be derived for [[surface runoff]], [[groundwater runoff]], and even for [[interflow]].</div><br/> </div> | <div class="definition"><div class="short_definition">(''Or'' master recession curve.) A smoothed composite of the [[recessions]] of several observed [[hydrographs]], drawn to represent the characteristic time graph of decreasing total [[runoff]] for a [[drainage area]] after passage of a peak flow.</div><br/> <div class="paragraph">Curves of this type, designed to characterize the nature of a drainage area, may be constructed as a plot of flow ([[stage]] of [[discharge]]) versus time, or as a plot of flow versus flow at some fixed later interval; also, separate recession curves may be derived for [[surface runoff]], [[groundwater runoff|groundwater runoff]], and even for [[interflow]].</div><br/> </div> | ||
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Latest revision as of 16:45, 25 April 2012
recession curve
(Or master recession curve.) A smoothed composite of the recessions of several observed hydrographs, drawn to represent the characteristic time graph of decreasing total runoff for a drainage area after passage of a peak flow.
Curves of this type, designed to characterize the nature of a drainage area, may be constructed as a plot of flow (stage of discharge) versus time, or as a plot of flow versus flow at some fixed later interval; also, separate recession curves may be derived for surface runoff, groundwater runoff, and even for interflow.
