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Techniques for estimating flood hydrographs for ungaged urban watersheds

January 1, 1984

The Clark Method, modified slightly was used to develop a synthetic, dimensionless hydrograph which can be used to estimate flood hydrographs for ungaged urban watersheds. Application of the technique results in a typical (average) flood hydrograph for a given peak discharge. Input necessary to apply the technique is an estimate of basin lagtime and the recurrence interval peak discharge. Equations for this purpose were obtained from a recent nationwide study on flood frequency in urban watersheds. A regression equation was developed which relates flood volumes to drainage area size, basin lagtime, and peak discharge. This equation is useful where storage of floodwater may be a part of design of flood prevention. (USGS)

Publication Year 1984
Title Techniques for estimating flood hydrographs for ungaged urban watersheds
DOI 10.3133/ofr82365
Authors V.A. Stricker, V.B. Sauer
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Open-File Report
Series Number 82-365
Index ID ofr82365
Record Source USGS Publications Warehouse