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Santa Barbara Hydrograph with Green-Ampt Infiltration

by George V. Sabol, Tipton & Kalmbach Inc, Hydraulics Section, Denver, CO, USA,
Timothy J. Ward, Tipton & Kalmbach Inc, Hydraulics Section, Denver, CO, USA,



Document Type: Proceeding Paper

Part of: Watershed Management in the Eighties

Abstract:

Numerous models are available to estimate rainfall-induced runoff from watersheds. The leading criteria in model selection is often reproducibility. Models that are reproducible are often simple, and therefore, often also meet the practicality criteria. Since similar results can be achieved by different individuals (supervisors or agency reviewers) using models with high reproducibility, they are also often mistakenly regarded as accurate in the sense that results can be 'independently' verified. The use of personnel not trained or experienced in hydrology and rainfall-runoff processes also encourages the use of models with high reproducibility to achieve consistency in results. In this paper, a single linear reservoir routing type model is presented and discussed that can be used for urban, agricultural, and undeveloped land. Its application using a microcomputer is presented. The model's accuracy, reproducibility, and practicality are discussed.

Subject Headings: Model accuracy | Hydrologic models | Rainfall-runoff relationships | Hydrographs | Watersheds | Runoff | Hydrology

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