Download or read book Techniques for Estimating Flood peak Discharges from Urban Basins in Missouri written by Lawrence D. Becker and published by . This book was released on 1986 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water resources Investigations Report written by and published by . This book was released on 1986 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Alternative Basin Characteristic for Use in Estimating Impervious Area in Urban Missouri Basins written by Rodney E. Southard and published by . This book was released on 1986 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A previous regression analysis of flood peaks on urban basins in St. Louis County, Missouri, indicated that the basin characteristics of percentage of impervious area and drainage area were statistically significant for estimating the 2-, 5-, 10-, 25-, 50-. and 100-yr peak discharges at ungaged urban basins. In this statewide regression analysis of the urban basins for Missouri, an alternative basin characteristic called the percentage of developed area was evaluated. A regression analysis of the percentage of developed area (independent variable), resulted in a simple equation for computing percentage of impervious area. The percentage of developed area also was evaluated using flood-frequency data for 23 streamflow gaging stations, and the use of this variable was determined to be valid. Using nationwide data, an urban basin characteristic known as the basin development factor was determined to be valid for inclusion in urban regression equations for estimating flood flows. The basin development factor and the percentage of developed area were compared for use in regression equations to estimate peak flows of streams in Missouri. The equations with the basin development factor produced peak flow estimates with slightly smaller average standard errors of estimate than the equation with the percentage of developed area; however, this study indicates that there was not enough statistical or numerical difference to warrant using the basin development factor instead of the percentage of developed area in Missouri. The selection of a basin characteristic to describe the physical conditions of a drainage basin will depend not only on its contribution to accuracy of regression equations, but also on the ease of determining the characteristics; the percentage of developed area has this advantage. A correlation analysis was made by correlating drainage area to percentage of impervious area, the percentage of developed area, and the basin development factor. The results of the analysis indicate that the three basin characteristics are independent of drainage area and appropriate to use in multiple-regression analysis"--Abstract.

Download or read book A New Basin Characteristic for Use in Estimating Impervious Area and Flood Discharges in Urban Missouri Basins written by Rodney E. Southard and published by . This book was released on 1986 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A previous regression analysis of flood peaks on urban basins in St. Louis County, Missouri, indicated that the percentage of impervious area and drainage area were the only basin characteristics of statistical significance in estimating the 2-, 5-, 10-, 25-, 50-, and 100-year peak-flow discharges at ungaged urban basins. In this statewide regression analysis of urban basins, a new basin characteristic called the percentage of developed area was computed and used in a simple regression analysis. The regression analysis included percentage of developed area as the independent variable and impervious area as the dependent variable, resulting in a simplified procedure for computing impervious area. Finally, the percentage of developed area was evaluated using flood frequency estimates at 23 U.S. Geological Survey streamflow-gaging stations and verified to be valid for use in estimating these flood discharges. In a nationwide study by Sauer and others (1983) an urban basin characteristic called the basin development factor was determined to be valid for inclusion in urban regression equations for estimating floodflows. The basin development factor was statistically compared through multiple-regression analysis to the percentage of developed area for Missouri streamflow-gaging station. The basin development factor produced results with slightly smaller average standard errors of estimate for estimating flood discharges; however, this study indicated that there was not enough statistical or numerical difference to warrant using the basin development factor instead of the percentage of developed area in Missouri. The selection of a basin characteristic to describe the physical conditions of a drainage basin will not depend solely on its contribution to accuracy of regression equations; it also will depend on which characteristic is easiest to obtain and percentage of developed area has this advantage. A correlation analysis was made by correlating drainage area to percentage of impervious area, the percentage of developed area, and the basin development factor. The results of the analysis indicated the three basin characteristics to be independent of drainage area and appropriate to use in multiple-regression analysis"--Abstract, pages 1-2.

Download or read book Technique for Estimating the 2 to 500 Year Flood Discharges on Unregulated Streams in Rural Missouri written by Terry W. Alexander and published by . This book was released on 1995 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Simulation of Flood Hydrographs for Small Basins in Missouri written by Lawrence D. Becker and published by . This book was released on 1990 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Techniques for Estimating Flood Peak Discharges for Unregulated Streams and Streams Regulated by Small Floodwater Retarding Structures in Oklahoma written by Robert L. Tortorelli and published by . This book was released on 1985 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Model Synthesis in Frequency Analysis of Missouri Floods written by Geological Survey (U.S.) and published by . This book was released on 1974 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technique for Estimating the 2 to 500 Year Flood Discharges on Unregulated Streams in Rural Missouri written by Terry W. Alexander, Gary L. Wilson and published by . This book was released on 1995 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimating Magnitude and Frequency of Floods for Wisconsin Urban Streams written by Duane H. Conger and published by . This book was released on 1986 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Techniques for Estimating Peak streamflow Frequency for Unregulated Streams and Streams Regulated by Small Floodwater Retarding Structures in Oklahoma written by Robert L. Tortorelli and published by . This book was released on 1997 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technique for estimating flood peak discharges and frequencies on rural streams in Illinois written by George W. Curtis and published by . This book was released on 1988 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Techniques for estimating flood peak discharges of rural unregulated streams in Ohio written by G. F. Koltun and published by . This book was released on 2003 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Regional equations for estimating 2-, 5-, 10-, 25-, 50-, 100-, and 500-year flood-peak discharges at ungaged sites on rural, unregulated streams in Ohio were developed by means of ordinary and generalized least-squares (GLS) regression techniques.

Download or read book Estimating Peak Discharges Flood Volumes and Hydrograph Shapes of Small Ungaged Urban Streams in Ohio written by James Montaigne Sherwood and published by . This book was released on 1986 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Techniques for Estimating Regional Flood Characteristics of Small Rural Watersheds in the Plains Region of Eastern Colorado written by Russell K. Livingston and published by . This book was released on 1987 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Methods for Estimating Magnitude and Frequency of Floods in the Southwestern United States written by Blakemore E. Thomas and published by . This book was released on 1994 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimating Flood Hydrographs for Urban Basins in North Carolina written by Robert R. Mason and published by . This book was released on 1996 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: