Roughness Values for Overland Flow in Subcatchments
Publication: Journal of Irrigation and Drainage Engineering
Volume 115, Issue 2
Abstract
A simple method is presented for assigning Manning roughness coefficients n to overland flow segments in kinematic wave models. The resulting n‐value for each subcatchment reflects its imperviousness and its land use. This approach has been incorporated into a kinematic wave model, and its application is here demonstrated on a catchment in Singapore. One storm record was used for calibration purposes, and this yielded extreme Manning n‐values of 0.02 and 0.30 for pure impervious and pervious sections, respectively. The calibrated model was then tested on two other storms for verification. Good agreements between simulated and measured hydrographs were obtained.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Alley, W. M., Dawdy, D. R., and Schaake, J. C. (1980). “Parametric‐deterministic urban watershed model.” J. Hydr. Div., ASCE, 106(5), 679–690.
2.
Brady, D. K. (1984). “Microcomputer model for impervious runoff using kinematic wave theory.” Research Report No. CE51, Department of Civil Engineering, University of Queensland, St. Lucia, Australia.
3.
Engman, E. T. (1986). “Roughness coefficients for routing surface runoff.” J. Irrig. Drain. Engrg., ASCE, 112(1), 39–54.
4.
HEC‐1 Flood Hydrograph Package, (1981). U.S. Army Corps of Engineers, Hydrologic Engineering Center.
5.
Laurenson, E. M., and Mein, R. G. (1983). RORB—Version 3, Runoff routing program user manual, Department of Civil Engineering, Monash University.
6.
Leclerc, G., and Schaake, J. C., Jr. (1973). “Methodology for assessing the potential impact of urban development on urban runoff and the relative efficiency of runoff control alternatives.” Ralph M. Parsons Laboratory Report No. 167, M.I.T., Cambridge, Mass.
7.
Lighthill, M. J., and Whitham, G. B. (1955). “On kinematic waves—I. Flood movement in long rivers.” Proc. Royal Soc. London, 229, 281–316.
8.
MITCAT catchment simulation model, Description and user's manual, Version 9. (1980). Camp Dresser & McKee.
9.
Stephens, H. S., and Hemmings, S. K., eds. (1976). Proceedings of the International Symposium on Unsteady Flow in Open Channels, BHRA Fluid Engineering, Bedford, England.
10.
Wooding, R. A. (1965). “A hydrologic model for the catchment‐stream problem, I. Kinematic wave theory.” J. Hydrology, 3(3 & 4).
11.
Wu, Y. H., Woolhiser, D. A., and Yevjevich, V. (1982). “Effects of spatial variability of hydraulic resistance of runoff hydrographs.” J. Hydrology, 59.
Information & Authors
Information
Published In
Copyright
Copyright © 1989 ASCE.
History
Published online: Apr 1, 1989
Published in print: Apr 1989
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.