| Abstract: | The precipitation-runoff modeling system was applied to the 8.21 sq-mi drainage area of the Ah-shi-sle-pah Wash watershed in northwestern New Mexico. The calibration periods were May to September of 1981 and 1982, and the verification period was May to September 1983. Twelve storms were available for calibration and 8 storms were available for verification. For calibration A (hydraulic conductivity estimated from onsite data and other storm-mode parameters optimized), the computed standard error of estimate was 50% for runoff volumes and 72% of peak discharges. Calibration B included hydraulic conductivity in the optimization, which reduced the standard error of estimate to 28 % for runoff volumes and 50% for peak discharges. Optimized values for hydraulic conductivity resulted in reductions from 1.00 to 0.26 in/h and 0.20 to 0.03 in/h for the 2 general soils groups in the calibrations. Simulated runoff volumes using 7 of 8 storms occurring during the verification period had a standard error of estimate of 40% for verification A and 38% for verification B. Simulated peak discharge had a standard error of estimate of 120% for verification A and 56% for verification B. Including the eighth storm which had a relatively small magnitude in the verification analysis more than doubled the standard error of estimating volumes and peaks. (USGS) |
| Genre: | USGS Numbered Series |
| ProdID: | 27653 |
| Citation Author: | Hejl, H. R., Jr. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | iv, 36 p. :ill. ;28 cm. |
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| Citation Publisher: | Dept. of the Interior, U.S. Geological Survey ;
Books and Open-File Reports [distributor], |
| Citation Series: | Water-Resources Investigations Report |
| Citation Series Code: | WRI |
| Citation Series Number: | 88-4140 |
| Citation Search Results Text: | Application of the precipitation-runoff modeling system to the Ah- shi-sle-pah Wash watershed, San Juan County, New Mexico; 1989; WRI; 88-4140; Hejl, H. R., Jr. |
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| Citation Year: | 1989 |
| Type: | citation/reference |
| Text: | Application of the precipitation-runoff modeling system to the Ah- shi-sle-pah Wash watershed, San Juan County, New Mexico; 1989; WRI; 88-4140; Hejl, H. R., Jr. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/wri/1988/4140/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/wri/1988/4140/report.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | Dept. of the Interior, U.S. Geological Survey ;
Books and Open-File Reports [distributor], |
