Research Article
Jul 1982
Improvement of Nonlinear Rainfall-Runoff Model
Publication: Journal of the Hydraulics Division
Volume 108, Issue 7
Abstract
Water resources engineers have long been aware that the linear assumption of unit hydrograph models produces poor results in some basins. The Amorocho-Branstetter nonlinear model is an alternative to unit hydrograph models in these instances, but has not been as popular, perhaps because the user had to determine the parameters by trial-and-error, thereby needing to understand more of the mathematical background of the model than desirable. Moreover, in many instances, the trial-and-error procedure was expensive and tedious. This paper presents a way to efficiently calculate the three main model parameters, memory, U, order, IORD, and truncation, M1 and M2. These calculations are programmed into the model so the user need not supply them.
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Published In
Journal of the Hydraulics Division
Volume 108 • Issue 7 • July 1982
Pages: 813 - 822
Copyright
© 1982 American Society of Civil Engineers.
History
Published in print: Jul 1982
Published online: Feb 3, 2021
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Authors
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Otto J. Helweg, M.ASCE
Assoc. Prof. and Prof., Dept. of Civ. Engrg., Univ. of California, Davis, Calif.
Jaime Amorocho, M.ASCE
Prof., Dept. of Civ. Engrg., Univ. of California, Davis, Calif.
Ralph H. Finch
Research Asst., Mexico Research Inst., Mexico City, Mexico
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.