Link to USGS home page

Techniques for Estimating Peak-Flow Frequency Relations for North Dakota Streams

By  Tara Williams-Sether

 

Water-Resources Investigations Report 92-4020

 

Prepared in cooperation with North Dakota Department of Transportation


Report Options
View or Download Entire Report as a pdf file

View Abstract

View Table of Contents

View or Download

The full report is available in pdf format and 12,720 KB in size.  Click HERE to view the report.

 

If you have Adobe® Acrobat® or Adobe® Acrobat® Reader® installed on your computer, you may view and print the PDF version of this report. Acrobat Reader, is a free download it from Adobe Systems, Inc.

 

Return to Top


Abstract

This report presents techniques for estimating peak-flow frequency relations for North Dakota streams.  In addition, a generalized skew coefficient analysis was completed for North Dakota to test the validity of using the generalized skew coefficient map in Bulletin 17B of the Hydrology Subcommittee of the Interagency Advisory Committee on Water Data, 1982, "Guidelines for Determining Flood Flow Frequency."  The analysis indicates that the generalized skew coefficient map in Bulletin 17B provides accurate estimates of generalized skew coefficient values for natural-flow streams in North Dakota.

 

Peak-flow records through 1988 for 192 continuous- and partial-record streamflow gaging stations that had 10 or more years of record were used in a generalized least-squares regression analysis that relates peak flows for selected recurrence intervals to selected basin characteristics.  Peak-flow equations were developed for recurrence intervals of 2, 10, 15, 25, 50, 100, and 500 years for three hydrologic regions in North Dakota.  The peak-flow equations are applicable to natural-flow streams that have drainage areas of less than or equal to 1,000 square miles.  The standard error of estimate for the three hydrologic regions ranges from 60 to 70 percent for the 100-year peak-flow equations.

 

Methods are presented for transferring peak-flow data from gaging stations to ungaged sites on the same stream and for determining peak flows for ungaged sites on ungaged streams.  Peak-flow relations, weighted estimates of peak flow, and selected basin characteristics are tabulated for the 192 gaging stations used in the generalized skew coefficient and regression analyses.  Peak-flow relations also are provided for 63 additional gaging stations that were not used in the generalized skew coefficient and regression analyses.  These 63 gaging stations generally represent streams that are significantly controlled by regulation and those that have drainage areas greater than 1,000 square miles.

 

Return to Top


Table of Contents

Abstract

Introduction

Purpose and scope

Previous studies

General physical and hydrologic description of study area

Basin and climatic characteristics considered in the generalized skew coefficient and regression analyses

Analysis of generalized skew coefficient

Peak-flow frequency relations for gaging stations

Peak-flow frequency relations for ungaged sites

Ungaged sites near a gaging station on the same stream

Ungaged sites on ungaged streams

Development of regression equations

Limitations on use of the regression equations

Examples of estimating peak-flow frequency data for gaging stations and for ungaged sites

Example for determining weighted peak-flow frequency data for gaging stations

Example for determining peak-flow frequency data for an ungaged site near a gaging station on the same stream

Examples for determining peak-flow frequency data for an ungaged site between two gaging stations on the same stream

Examples for using regression equations to compute peak-flow frequency data for ungaged sites on ungaged streams

Need for additional streamflow data and for updating the basin and climatic characteristics file

Summary

References cited

 

Illustrations

 

1. Map showing locations of gaging stations and regional hydrologic boundaries used in the regression analysis

2. Map showing main topographic areas in North Dakota

3. Map showing the locations of gaging stations not used in the regression analysis

 

Tables

 

1. Mean and variance of station skew data and mean squared error computed for the differences between station skew and the generalized skew coefficient map in Bulletin 17B

2. Selected basin characteristics, peak flow for selected recurrence intervals, and maximum peak flow of record for gaging stations used in the generalized skew coefficient and regression analyses

3. Drainage area and peak flow for selected recurrence intervals for gaging stations not used in the generalized skew coefficient and regression analyses

4. Regional regression equations that relate peak flow for selected recurrence intervals to selected basin characteristics

5. Range of basin characteristics used to develop the regression equations

 

 

Return to Top


 

U.S. Department of the Interior || U.S. Geological Survey
Maintainer: Webmaster
Last update: Monday, 05-Jun-2006 14:34:06 EDT
Privacy || Disclaimer|| Accessibility || FOIA
URL: http://nd.water.usgs.gov/pubs/wri/wri924020/index.html
FirstGov, "Your First Click to the U.S. Government"