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U.S. GEOLOGICAL SURVEY
Water-Resources Investigations Report 03–4037


A Stage-Normalized Function for the Synthesis of Stage-Discharge Relations for the Colorado River in Grand Canyon, Arizona


This report is available online in pdf format (4 MB): USGS WRIR 03–4037 (Opens the PDF file in a new window. )

Prepared in cooperation with the GRAND CANYON MONITORING AND RESEARCH CENTER

By Stephen M. Wiele and Margaret Torizzo

ABSTRACT

A method was developed to construct stage-discharge rating curves for the Colorado River in Grand Canyon, Arizona, using two stage-discharge pairs and a stage-normalized rating curve. Stage-discharge rating curves formulated with the stage-normalized curve method are compared to (1) stage-discharge rating curves for six temporary stage gages and two streamflow-gaging stations developed by combining stage records with modeled unsteady flow; (2) stage-discharge rating curves developed from stage records and discharge measurements at three streamflow-gaging stations; and (3) stages surveyed at known discharges at the Northern Arizona Sand Bar Studies sites. The stage-normalized curve method shows good agreement with field data when the discharges used in the construction of the rating curves are at least 200 cubic meters per second apart. Predictions of stage using the stage-normalized curve method are also compared to predictions of stage from a steady-flow model.

CONTENTS

Abstract

Introduction

Development of a stage-normalized function for the synthesis of stage-discharge relations

Comparisons of stage-normalized curve method results with data and stars model results

Conclusion

References





This report is available online in Portable Document Format (PDF). To view the PDF document, you need the Adobe Acrobat® Reader installed on your computer. (A free copy of the Acrobat® Reader may be downloaded from Adobe Systems Incorporated.)





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Page Last Modified: Monday, 31-Dec-2012 11:59:53 EST