USGS

STATISTICAL SUMMARIES OF STREAMFLOW IN OKLAHOMA THROUGH 1999

Water-Resources Investigations Report 02-4025

By Robert L. Tortorelli

 

Prepared in cooperation with the

OKLAHOMA DEPARTMENT OF ENVIRONMENTAL QUALITY

Abstract

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Statistical summaries of streamflow records through 1999 for gaging stations in Oklahoma and parts of adjacent states are presented for 188 stations with at least 10 years of streamflow record. Streamflow at 113 of the stations is regulated for specific periods. Data for these periods were analyzed separately to account for changes in streamflow due to regulation by dams or other human modification of streamflow.

 

A brief description of the location, drainage area, and period of record is given for each gaging station. A brief regulation history also is given for stations with a regulated streamflow record. This descriptive information is followed by tables of mean annual discharges, magnitude and probability of exceedance of annual high flows, magnitude and probability of exceedance of annual instantaneous peak flows, durations of daily mean flow, magnitude and probability of non-exceedance of annual low flows, and magnitude and probability of non-exceedance of seasonal low flows.

Table of Contents

Abstract

Introduction

Purpose and scope

Acknowledgments

Statistical Summaries

Site selection

Description of streamflow statistics tables

Station descriptions

Mean annual discharges

Annual high-flow frequency

Annual instantaneous peak-flow frequency

Flow duration

Annual and seasonal low-flow frequencies

Summary

Selected references

Statistical summaries of streamflow

Streamflow tables

Index

 


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