Effect of Maximum Rainfall Position on Rainfall‐Runoff Relationship
Publication: Journal of Hydraulic Engineering
Volume 117, Issue 5
Abstract
The aim of this technical note is to evaluate the effect of the maximum precipitation of synthetical hyetograph on rainfall hydrograph generation. Fourteen intense storms of long duration are analyzed. The results show an important variation of the coefficient r in relation to the rainfall duration. While the choice of a constant value of coefficient r makes it, in fact, easier to apply the method of synthetic hyetographs, in certain cases the optimization of a storm sewer network requires a variable value of r in time. The application of this approach to an urban basin in the Moncton area results in two hydrographs with practically the same peak discharge, but displaced in time.
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References
1.
El‐Jabi, N. (1973). “Méthode de calcul des débits d'orages dans les bassins urbains.” Internal Report Communauté Urbaine de Montréal, service d'assainissement des eaux, Montréal, Canada (in French).
2.
Keifer, C. J., and Chu, H. H. (1957). “Synthetic storm pattern for drainage design.” J. Hydr. Div., 83(4), 1–25.
3.
Keifer, C. J., and Tholin, A. L. (1959). “The hydrology of urban runoff.” J. Sanit. Engrg. Div., ASCE, 85(2), 47–106.
4.
Mitci, C. (1974). “Sur une nouvelle méthode de calcul des débits d'orage et de hydrogrammes de ruissellement dans les bassins de drainage urbains,” Techniques et Sciences Municipales‐L'EAU, 69(2), 59–74 (in French).
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Published In
Journal of Hydraulic Engineering
Volume 117 • Issue 5 • May 1991
Pages: 681 - 685
Copyright
Copyright © 1991 ASCE.
History
Published online: May 1, 1991
Published in print: May 1991
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