Research and analysis

Extension of rating curves at gauging stations: best practice guidance manual

This manual is designed to provide best practice guidelines for the extension of rating curves at gauging stations.

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Detail

The purpose of this manual is to provide guidance on how to extend rating curves to high and low flows. The manual provides:

  • An introduction to rating curve extension including advice on which methods to use under different circumstances;
  • Guidance on the use of simple hydraulic techniques for rating curve extension; and
  • Guidance on the use of computational hydraulic modelling for rating curve extension.