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ISO 9123 : 2017

M00024519

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ISO 9123 : 2017

HYDROMETRY - STAGE-FALL-DISCHARGE RELATIONSHIPS

International Organization for Standardization

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Table of Contents

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 General considerations
6 Unit-fall method
7 Constant-fall method
8 Variable-fall method
9 Rating curves and tables
10 Method of computation
11 Periodic checking of stage-fall-discharge ratings
12 Extrapolations
13 Evaluation of uncertainty in the stage-fall-discharge
   relation
Annex A (informative) - Multiple least squares
        regression - Matrix representation
Bibliography

Abstract

Describes methods for determining stage-fall-discharge relationships for a stream reach where variable backwater occurs either intermittently or continuously.

General Product Information

Document Type Standard
Status Current
Publisher International Organization for Standardization
Committee TC 113
Supersedes
  • ISO/FDIS 9123 : 60.00 (2017)
  • ISO TR 9123 : 1986