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Scientific Investigations Report 2012−5178

Prepared in cooperation with the Wyoming Department of Environmental Quality, Wyoming Game and Fish Department, and the U.S. Department of Agriculture Forest Service, Region 2

Bankfull-Channel Geometry and Discharge Curves for the Rocky Mountains Hydrologic Region in Wyoming

By Katharine Foster

Thumbnail of and link to report PDF (10.4 MB)Abstract

Regional curves relate bankfull-channel geometry and bankfull discharge to drainage area in regions with similar runoff characteristics and are used to estimate the bankfull discharge and bankfull-channel geometry when the drainage area of a stream is known. One-variable, ordinary least-squares regressions relating bankfull discharge, cross-sectional area, bankfull width, and bankfull mean depth to drainage area were developed from data collected at 35 streamgages in or near Wyoming. Watersheds draining to these streamgages are within the Rocky Mountains Hydrologic Region of Wyoming and neighboring states. (See page 1 of report for full abstract)

First posted November 9, 2012

For additional information contact:
Director, Wyoming-Montana Water Science Center
U.S. Geological Survey
3162 Bozeman Ave.
Helena, MT 59601
http://wy-mt.water.usgs.gov/

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Suggested citation:

Foster, Katharine, 2012, Bankfull-channel geometry and discharge curves for the Rocky Mountains Hydrologic Region in Wyoming: U.S. Geological Survey Scientific Investigations Report 2012–5178, 20 p.



Contents

Abstract

Introduction

Methods

Development and Evaluation of Regional Curves

Limitations

Constraints on Application of Regional Curves

Summary

Acknowledgments

References Cited

Glossary


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