USGS

Water Resources of Colorado

Streamflow Characteristics for Selected Stations In
and Near the Grand Mesa, Uncompahgre, and
Gunnison National Forests, Southwestern Colorado

By Gerhard Kuhn

Available on CD-ROM from the U.S. Geological Survey, Branch of Information Services, Box 25286, Denver Federal Center, Denver, CO 80225, USGS Open-File Report 02–471, 32 p., 10 figs.

This document also is available in pdf format: Adobe Acrobat Icon OFR 02–471.pdf (2.1 MB) README
(Requires Adobe Acrobat Reader)

Abstract

The U.S Geological Survey, in cooperation with the Grand Mesa, Uncompahgre, and Gunnison National Forests, began a study in 2000 to develop selected streamflow characteristics for 60 streamflow-gaging stations in and near the Grand Mesa, Uncompahgre, and Gunnison National Forests. The study area is located in southwestern Colorado within the Gunnison River, Dolores River, and Plateau Creek Basins, which are tributaries of the Colorado River.

In addition to presenting the compiled daily, monthly, and annual discharge data for the 60 stations, the report presents tabular and graphical results for the following computed streamflow characteristics: (1) Instantaneous peak-flow frequency; (2) flow duration for daily mean discharges on an annual (water year) basis and on a monthly basis, and flow duration for the annual and monthly mean discharges; (3) low-flow and high-flow frequency of daily mean discharges for periods of 1, 3, 7, 15, 30, 60, 120, and 183 consecutive days; and (4) annual and monthly mean and median discharges for each year and month of record, and frequency of the annual and monthly mean and median discharges. All discharge data and results from the streamflow-characteristics analyses are presented in Microsoft Excel workbooks on the enclosed CD­ROM.


Table of Contents

Abstract

Introduction

Purpose and Scope

Description of Study Area

Acknowledgments

Organization of Discharge and Streamflow Characteristics Data on the CD­ROM

Description of Streamflow Characteristics Data on the CD­ROM

Objective 1—Peak Frequency

Objective 2—Duration of Daily Mean Discharges on an Annual and Monthly Basis

Duration of Annual and Monthly Mean Discharges

Objective 3—N-Day Frequency

N-Day High-Flow Frequency

N-Day Low-Flow Frequency

Objective 4—Mean and Median Discharge on an Annual and Monthly Basis

Frequency of Annual and Monthly Mean and Median Discharges

Annual and Monthly Mean

Annual and Monthly Median

Summary

References

 

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