An analytical model for stream sediment transport: application to Murray and Murrumbidgee river reaches, Australia
✍ Scribed by Claude R. Dietrich; Timothy R. Green; Anthony J. Jakeman
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 213 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0885-6087
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✦ Synopsis
The mechanisms controlling the ¯ow of sediment in streams can be very complex and dicult to model with accuracy. Furthermore, data associated with the dominant sediment transport processes are often scarce. In this paper, we propose a model for the transport of suspended sediment in single stream reaches that permits a characterization of the dynamics of sediment sources and sinks, and routes concentrations through a stream network. We present a closed form, physically based, one-dimensional model that incorporates sediment advection, deposition, resuspension and lateral sources along a river reach. Data requirements for the model are modest, with parsimonious model structure involving only a few parameters. Thus, the model is relatively easy to calibrate and implement. An application of the model is illustrated using turbidity and ¯ow data from two single reaches of the Murray and Murrumbidgee rivers in south-eastern Australia.