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Water level series can be transformed in discharge series by use of a stage-discharge relation of one of the following forms:
1. single channel rating curve
2. compound channel rating curve
3. rating curve with unsteady flow correction
4. rating curve with constant fall backwater correction
5. rating curve with normal fall backwater correction
6. user structure equation
7. measuring structure relations.
The first five transformations will be dealt with in this section. The options 6 and 7 are presented in the sections about structure and measurement structure transformation.
For a particular station the combination of water level(s) and discharge series, cross-sections and structure parameters required to transform stages into discharges can be stored in the database to facilitate the transformation at subsequent occasions.
03 - Stage discharge^image004.gif!
Single and compound channel rating curve
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