Analytical Approach for Derivation of Oscillation-Free Altered Duration Unit Hydrographs
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VIEW THE REPLYPublication: Journal of Hydrologic Engineering
Volume 21, Issue 11
Abstract
This paper proposes analytical inflection S-shaped (IS) approach for deriving smooth-shaped altered duration () unit hydrographs (UHs) from a given unit duration () parent UH. It was found to be superior to conventional S-curve approach as it has the ability to exactly reproduce a hunting-free parent S-curve or its lagged version at a desired duration. Chiefly, the complexity associated with the erroneous lagging of parent UH or S-curve, interpolation if altered UH duration is not an integral multiple of parent UH duration, tedious manual/visual smoothing of derived S-curve or altered duration UH and sustaining unit volume under UH has been fully resolved.
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Acknowledgments
The authors wish to thank IIT Roorkee, India for providing all the necessary research facilities.
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Published In
Journal of Hydrologic Engineering
Volume 21 • Issue 11 • November 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Aug 25, 2015
Accepted: Jun 1, 2016
Published online: Jul 21, 2016
Published in print: Nov 1, 2016
Discussion open until: Dec 21, 2016
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