Abstract

Numerical experiments are carried out to investigate the influence of density variations on estuarine tides and circulations. The mathematical model, which has been previously published, is outlined. A detailed analysis of the tidal properties and circulations in an estuary is made for two cases. One case involved density variations while the other assumed a constant density. It was found that the discharge through any section, the tidal range, and the tidal phases were independent of the density structure. However, the actual tidal amplitudes, the mean elevation and the vertical structure of longitudinal velocity changed considerably in the various experiments. Both cases assumed the same coefficient of bottom friction and bathymetric schematization.

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