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