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Urban flood frequency and hydrograph analysis

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Abstract

A set of seven-parameter regression equations was developed for estimating flood discharges at ungaged areas. The regression equations can be used to estimate urban flood discharges throughout the United States for recurrence intervals from 2 through 500 years. The average standard errors of regression range from 37 percent for the 5-year flood to 49 percent for the 500-year flood. Flood hydrographs representing average, or typical, runoff conditions can be estimated by using a dimensionless hydrograph technique. The dimensionless hydrograph is used to simulate a flood hydrograph by using two parameters - the design peak discharge and the basin lagtime.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
Urban flood frequency and hydrograph analysis
ISBN:
0872627195
Year Published:
1989
Language:
English
Publisher:
Publ by ASCE
Publisher location:
New York, NY, United States
First page:
379
Last page:
385
Number of Pages:
7
Conference Title:
Proceedings of the 1989 National Conference on Hydraulic Engineering
Conference Location:
New Orleans, LA, USA
Conference Date:
14 August 1989 through 18 August 1989