S-curve

Hydrograph that would result from an infinite series of sequential excess rainfall increments of unit rate (e.g. 1 cm in T hours) , by adding a series of T-hour unit hydrographs, each lagged T hours with respect to the preceding one. (GHP)

 

Source:

UNESCO/WMO International Glossary of Hydrology (2nd revised ed., 1992)

Posted on February 24, 2014 .