Longitudinal dispersion processes in the upper tamar estuary |
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Authors: | J R West R J Uncles J A Stephens K Shiono |
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Institution: | 1. Department of Civil Engineering, University of Birmingham, B15 2TT, Birmingham, UK 2. Plymouth Marine Laboratory, PL1 3DH, Plymouth, UK
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Abstract: | Measurements of velocity, salinity, and suspended solids concentration have been used to investigate the intra-tidal variation of vertical and transverse shear-induced dispersion. For the study research the interaction of the longitudinal density gradient and vertical shear during the early part of the ebb tide accounted for much of the net longitudinal dispersion of solute landward. The same mechanism also is shown to lead to a net particulate transport landward. The landward flux, however, takes place during the flood tide. The field data are also used to elucidate the tidally averaged tidal pumping mechanism. |
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