Ewa Jasinska


The data of several field measurements performed in different types of estuaries along the Polish Baltic Coast are presented here. The results of measurement showed how unsteady and changeable the flow conditions and the motion of salt water in tideless estuaries are. The salinity and velocity distributions in the tested estuaries demonstrate that the change of current direction occurs at different depth and different times. It has been stated that the dynamics of the flow in tideless estuaries is similar to that of the tidal estuaries. A method of determination of longitudinal dispersion coefficient for tideless estuary is presented. The results from calculations for tidless estuary using a threedimensional estuary model previously developed for tidal estuaries are presented.


salt intrusion; tideless estuary; estuary

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