Abstract
Many shallow estuarine environments contain considerable quantities of fine-grained sediments. It is difficult, however, to determine theoretically the concentration and transport of fine-grained sediments in such environments, because the fine particles flocculate and because the suspended sediment concentration is dependent on a number of different parameters. The most important of which are: (1) bottom shear stress (current velocity), (2) wind speed and direction, and (3) salinity. In this study the relative importance of these parameters is evaluated in relation to a shallow micro-tidal environment, Ho Bugt, Denmark. Furthermore, a mathematical model explaining the variation in the concentration of fine-grained suspended sediments at a station within this area was created and calibrated to measurements of wind speed and direction, salinity and tidal current velocity. The model describes about 80% of the variance of the suspended sediment concentration at the site of observation.
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