| Abstract: | Equations for estimating the magnitude and frequency of floods on ungaged streams in Indiana were developed by multiple-regression analysis of basin characteristics and peak-flow statistical data from 242 gaged sites in Indiana, Ohio , and Illinois. The state of Indiana was divided into seven areas on the basis of regression analysis. A set of equations for estimating peak discharges with recurrence intervals of 2, 10, 25, 50, and 100 years was developed for each area. The equations are valid for unregulated and nonurban streams. Significant basin characteristics in the equations are drainage area, channel length, channel slope, mean annual precipitation, intensity of precipitation, storage, and a runoff coefficient. Standard errors of estimate for the equations range from 24 to 45 percent. A rainfall-runoff model was used to extend the length of record at 11 gaged sites on small streams. Flood-frequency data from the synthetic peaks and from the observed peaks were combined by weighting techniques. (USGS) |
| Genre: | USGS Numbered Series |
| ProdID: | 27333 |
| Citation Author: | Glatfelter, D. R. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | iv, 110 p. :ill., maps ;28 cm. |
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| Citation Publisher: | U.S. Geological Survey, Water Resources Division, |
| Citation Series: | Water-Resources Investigations Report |
| Citation Series Code: | WRI |
| Citation Series Number: | 84-4134 |
| Citation Search Results Text: | Techniques for estimating magnitude and frequency of floods on streams in Indiana; 1984; WRI; 84-4134; Glatfelter, D. R. |
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| Citation Year: | 1984 |
| Type: | citation/reference |
| Text: | Techniques for estimating magnitude and frequency of floods on streams in Indiana; 1984; WRI; 84-4134; Glatfelter, D. R. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg |
| URL (INDEX PAGE): | http://pubs.water.usgs.gov/wri844134 |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey, Water Resources Division, |
