Adverse tidal exchange occurred due to the littoral drift along the coast line causing flow reduction and shifting of the lake mouth every year.
The AR turbine is rotated as required with each tidal exchange.
This results in interesting patterns of tidal exchange and, presumably, in situ mixing on weekly and fortnightly time scales.
In Alewife Cove there was a stone groin built, the cove was dredged, and they realigned the channel to allow for tidal exchange.
In some years, a sand bar forms at the mouth of the Estero, restricting tidal exchange.
The channels also provided the necessary tidal exchange (with its nutrient-rich, oxygenated waters) to help create important "edge" habitats for crustaceans, fish, and birds.
One million cubic feet of water will flow through on each tidal exchange from the sound to the cove.
When they open it and get the tidal exchange, you'll get the different birds and animals coming in and setting up communities.
First there is a real retardation of the Moon's angular rate of orbital motion, due to tidal exchange of angular momentum between the Earth and Moon.
Flow through Deception Pass accounts for about 2% of the total tidal exchange between Puget Sound and the Strait of Juan de Fuca.