Peak-flow characteristics of Wyoming streams
Water-Resources Investigations Report
2003-4107
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Abstract
Peak-flow characteristics for unregulated streams in Wyoming are described in this report. Frequency relations for annual peak flows through water year 2000 at 364 streamflow-gaging stations in and near Wyoming were evaluated and revised or updated as needed. Analyses of historical floods, temporal trends, and generalized skew were included in the evaluation. Physical and climatic basin characteristics were determined for each gaging station using a geographic information system. Gaging stations with similar peak-flow and basin characteristics were grouped into six hydrologic regions. Regional statistical relations between peak-flow and basin characteristics were explored using multiple-regression techniques. Generalized least squares regression equations for estimating magnitudes of annual peak flows with selected recurrence intervals from 1.5 to 500 years were developed for each region. Average standard errors of estimate range from 34 to 131 percent. Average standard errors of prediction range from 35 to 135 percent. Several statistics for evaluating and comparing the errors in these estimates are described. Limitations of the equations are described. Methods for applying the regional equations for various circumstances are listed and examples are given.
Suggested Citation
Miller, K.A., 2003, Peak-flow characteristics of Wyoming streams: U.S. Geological Survey Water-Resources Investigations Report 2003-4107, 79 p., https://doi.org/10.3133/wri034107.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Peak-flow characteristics of Wyoming streams |
| Series title | Water-Resources Investigations Report |
| Series number | 2003-4107 |
| DOI | 10.3133/wri034107 |
| Year Published | 2003 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Description | 79 p. |
| Country | United States |
| State | Wyoming |