On the generalized kinematic routing method

Field measurements suggest that the relationship between velocity and discharge in steep rough upland channels may be nonlinear at low-flow stages but approximately linear at high-flow stages. This paper describes a generalized kinematic channel network routing model which can allow a flow relationship that describes both high- and low-flow characteristics. The model is applied to the channel network of the Institute of Hydrology's River Severn experimental catchment and, for this specific application, proves to be equivalent to a linear model based on a constant kinematic flow velocity. A strategy for choosing and applying a flow routing model for use in small catchments is suggested.