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Techniques for estimating flood hydrographs for ungaged urban watersheds

V.A. Stricker·V.B. Sauer
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Abstract

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)

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V.A. Stricker, V.B. Sauer. 1984. Techniques for estimating flood hydrographs for ungaged urban watersheds. https://doi.org/10.3133/ofr82365

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