ABSTRACT
ABSTRACT: The hydrodynamic effects of incorporating or removing natural or constructed barriers (e.g. sand bars, tidal barrages) within estuaries are reviewed from the point of view of restricted tidal intrusion and flushing of saline waters and the suppression of associated densitydriven exchange processes. Results from recent experimental studies investigating various aspects of these processes for fully-and partly-submerged barrier configurations are presented herein. In each case, attempts are made to describe these processes through appropriate scaling relationships of the controlling parameters. Applications to field scale observations are attempted.
