1996 Volume 40 Pages 517-524
In recent years the upstream intrusion of salinity in a tidal estuary has become a serious social problem for river environment and water resources. In view of taking water resources durably and preserving the ecology, artificial control methods for preventing the salinity intrusion are required. Setting up a mound on a river bed has been proposed and applied to real estuaries. So we experimentally examined the effects of the height and the position of mound in a well-mixed estuary. In addition, we proposed the method to make vertical mixing strongly by using a bubble plume to decrease the intrusion length of saline wedge and also examined its effect experimentally.
