Abstract
Transport processes of fine-grained sediments in the Tamar Estuary, UK, are studied using a combination of two- and three-dimensional numerical models and a comprehensive observational data set, collected during a COSINUS field campaign in 1999. The three-dimensional model is based on a hydrostatic version of MIKE 3, combining models for flow, stratification, turbulence and mud transport. Using a two-dimensional flow model of the whole estuary to provide boundary information, a high-resolution three-dimensional model is set up for a section of the upper estuary, containing a pronounced turbidity maximum. The model is calibrated using the observations. A sensitivity analysis is carried out, where various formulations of flocculation effects and of buoyancy effects on the turbulence are investigated. The conclusions are that the models can provide a realistic picture of the mud transport processes, but are sensitive to the specific parameterisation of flocculation.
| Original language | English |
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| Title of host publication | Fine Sediment Dynamics in the Marine Environment - Proc. in Marine Science 5 |
| Editors | JC Winterwerp, C Kranenburg |
| Publisher | Elsevier Science |
| Pages | 643-654 |
| Number of pages | 11 |
| Volume | 5 |
| Publication status | Published - 1 Jan 2002 |