Development of Optimal and Physically Realizable Unit Hydrograph
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Optimization techniques for deriving a unit hydrograph (UH) have received considerable attention. But the UHs derived in some studies are not physically justifiable as the recession limb has a wavy shape. This study extends an existing optimization model by introducing additional constraints to ensure a monotonic decline in the recession limb of the UH. Although there is a marginal deterioration of the objective function, the shape of the developed UH is physically correct. Moreover, the match between the observed and computed direct surface runoff hydrographs is close. © 2006 ASCE.
author list (cited authors)
Jain, S. K., Singh, V. P., & Bhunya, P. K.