Use of rainfall-simulator data in precipitation-runoff modeling studies
Water-Resources Investigations Report
83-4159
By: G.C. Lusby and R.W. Lichty
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Abstract
Results of a study using a rainfall simulator to define infiltration parameters for use in watershed modeling are presented. A total of 23 rainfall-simulation runs were made on five small plots representing four representative soil-vegetation types of the study watershed in eastern Colorado. Data for three observed rainfall-runoff events were recorded by gages on four of the plots. Data from all events were used to develop best-fit parameters of the Green and Ampt infiltration equation. The hydraulic conductivity of the transmission zone, KSAT, grossly controlled the goodness of fit of all modeling attempts. Results of fitting KSAT to reproduce runoff from rainfall simulator runs and results of fitting KSAT to reproduce runoff from observed rainfall-runoff events are inconsistent. Variations in results from site to site and at different times of the year were observed. (USGS)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Use of rainfall-simulator data in precipitation-runoff modeling studies |
| Series title | Water-Resources Investigations Report |
| Series number | 83-4159 |
| DOI | 10.3133/wri834159 |
| Edition | - |
| Year Published | 1983 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey, |
| Description | vii, 66 p. :ill., map ;28 cm. |
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