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Calculating Hydrographs from Stage Records

Author(s): John D. Fenton

Linked Author(s): John D. Fenton

Keywords: Looped rating curve; Hydrograph; Stage; Waterways

Abstract: A method is developed for the routine analysis of river height records so that the corresponding discharges can be calculated. It is based on eliminating space derivatives between the long wave equations and by using an equation similar to the advection-diffusion approximation of river hydraulics to give an ordinary differential equation for discharge. An example shows that an explicit approximation may be as accurate. Either the differential equation or the explicit formula may also be used as an open boundary condition for numerical models of waterways.


Year: 1999

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