De curve-number vergelijking afgeleid uit een ogenblikkelijke eenheidsafvoergolf

Translated title of the contribution: Curve Number Derived From an Instantaneous Unit Hydrograph

Research output: Contribution to journalArticleProfessional


The curve number equation is derived assuming an instantaneous unit hydrograph, an initial abstraction, and a constant rainfall intensity. The derivation shows that the curve number equation is part of a family of single parameter instantaneous unit hydrographs, such as the linear reservoir, which when convoluted with the rainfall intensity yield the rising branch of a hydrograph. The resulting reformulation allows to incorporate the effect of rainfall intensity in the calculation of the cumulative discharge. This results in a different cumulative discharge notably for the same total rainfall at different recurrence intervals.
Translated title of the contributionCurve Number Derived From an Instantaneous Unit Hydrograph
Original languageDutch
Pages (from-to)45-52
JournalStromingen : vakblad voor hydrologen
Issue number2
Publication statusPublished - 2023


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