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Open-File Report 2009–1205

Long-Term Stage, Stage-Residual, and Width Data for Streams in the Piedmont Physiographic Region, Georgia

Jeffrey W. Riley and Robert B. Jacobson

ABSTRACT

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This report presents the data used to assess geomorphic adjustment of streams over time and to changing land-use conditions. Thirty-seven U.S. Geological Survey streamgages were selected within the Piedmont physiographic region of Georgia. Width, depth, stage, and discharge data from these streams were analyzed to assess channel stability and determine if systematic adjustments of channel morphology could be related to time or land use and land cover. Residual analyses of stage-discharge data were used to infer channel stability, which could then be used as an indicator of habitat stability. Streamgages, representing a gradient of urbanization, were selected to test hypotheses regarding stream stability and adjustment to urban conditions. Results indicate that 14 sites exhibited long-term channel stability, 11 were degrading, 6 were aggrading, and 6 showed variability in response over the study period.

First posted October 23, 2009

For additional information contact:
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U.S. Geological Survey
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http://ga.water.usgs.gov/

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Suggested citation:

Riley, J.W., and Jacobson, R.B., 2009, Long-term stage, stage-residual, and width data for streams in the Piedmont physiographic region, Georgia: U.S. Geological Survey Open-File Report 2009–1205, 46 p.



Contents

Abstract

Introduction

Acknowledgments

Purpose and Scope

Methods

Results

Summary and Conclusions

References Cited


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