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Techniques for Estimating Selected Streamflow Characteristics of Rural, Unregulated Streams in Ohio

Water-Resources Investigations Report 2002-4068
Prepared in cooperation with the Ohio Department of Natural Resources, Division of Water, Department of Transportation, and the U.S. Department of Transportation, Federal Highway Administration
By:  and 
https://doi.org/10.3133/wri024068

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Abstract

This report provides equations for estimating mean annual streamflow, mean monthly streamflows, harmonic mean streamflow, and streamflow quartiles (the 25th-, 50th-, and 75th-percentile streamflows) as a function of selected basin characteristics for rural, unregulated streams in Ohio. The equations were developed from streamflow statistics and basin-characteristics data for as many as 219 active or discontinued streamflow-gaging stations on rural, unregulated streams in Ohio with 10 or more years of homogenous daily streamflow record. Streamflow statistics and basin-characteristics data for the 219 stations are presented in this report.

Simple equations (based on drainage area only) and best-fit equations (based on drainage area and at least two other basin characteristics) were developed by means of ordinary least-squares regression techniques. Application of the best-fit equations generally involves quantification of basin characteristics that require or are facilitated by use of a geographic information system. In contrast, the simple equations can be used with information that can be obtained without use of a geographic information system; however, the simple equations have larger prediction errors than the best-fit equations and exhibit geographic biases for most streamflow statistics. The best-fit equations should be used instead of the simple equations whenever possible.

Suggested Citation

Koltun, G.F., and Whitehead, M.T., 2002, Techniques for estimating selected streamflow characteristics of rural, unregulated streams in Ohio: U.S. Geological Survey Water-Resources Investigations Report 2002–4068, 50 p., https://doi.org/10.3133/wri024068.

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Table of Contents

  • Abstract
  • Introduction
  • Compilation of Streamflow Data
  • Determination of Streamflow Statistics
  • Basin Characteristics
  • Development of Equations for Estimating Streamflow Statistics
  • Techniques for Estimating Selected Streamflow Characteristics
  • Summary
  • References
  • Appendixes
Publication type Report
Publication Subtype USGS Numbered Series
Title Techniques for estimating selected streamflow characteristics of rural, unregulated streams in Ohio
Series title Water-Resources Investigations Report
Series number 2002-4068
DOI 10.3133/wri024068
Year Published 2002
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Ohio Water Science Center
Description iv, 50 p.
Country United States
State Ohio
Scale 1
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