| Abstract: | The U.S. Geological Survey ‘s precipitation-runoff modeling system was tested using 2 year ‘s data for the daily mode and 17 storms for the storm mode from a basin in southeastern Montana. Two hydrologic response unit delineations were studied. The more complex delineation did not provide superior results. In this application, the optimum numbers of hydrologic response units were 16 and 18 for the two alternatives. The first alternative with 16 units was modified to facilitate interfacing with the storm mode. A parameter subset was defined for the daily mode using sensitivity analysis. Following optimization, the simulated hydrographs approximated the observed hydrograph during the first year, a year of large snowfall. More runoff was simulated than observed during the second year. There was reasonable correspondence between the observed snowpack and the simulated snowpack the first season but poor the second. More soil moisture was withdrawn than was indicated by soil moisture observations. Optimization of parameters in the storm mode resulted in much larger values than originally estimated, commonly larger than published values of the Green and Ampt parameters. Following optimization, variable results were obtained. The results obtained are probably related to inadequate representation of basin infiltration characteristics and to precipitation variability. (USGS) |
| Genre: | USGS Numbered Series |
| ProdID: | 26527 |
| Citation Author: | Cary, L. E. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | vi, 95 p. :ill., maps ;28 cm. |
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| Citation Publisher: | U.S. Geological Survey, |
| Citation Series: | Water-Resources Investigations Report |
| Citation Series Code: | WRI |
| Citation Series Number: | 84-4178 |
| Citation Search Results Text: | Application of the U.S. Geological Survey‘s precipitation-runoff modeling system to the Prairie Dog Creek basin, southeastern Montana; 1984; WRI; 84-4178; Cary, L. E. |
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| Citation Year: | 1984 |
| Type: | citation/reference |
| Text: | Application of the U.S. Geological Survey‘s precipitation-runoff modeling system to the Prairie Dog Creek basin, southeastern Montana; 1984; WRI; 84-4178; Cary, L. E. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/wri/1984/4178/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/wri/1984/4178/report.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey, |
