Tidal Currents

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Tidal Currents

 

currents that are caused by the tide-generating forces of the moon and sun and that periodically change direction and speed. The basic components of tidal currents have periods of 12 and 24 hours. In the open sea, tidal currents are rotatory, or circular, with speeds up to 0.5 knot (25 cm/sec). Near shore, in narrow gulfs, and in straits, they approach and recede and may reach speeds exceeding 10 knots (500 cm/sec).

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in classic literature ?
Maggie had no time to answer, for a new tidal current swept along the line of the houses, and drove both the boats out on to the wide water, with a force that carried them far past the meeting current of the river.
The tidal current runs to and fro in its unceasing service, crowded with memories of men and ships it had borne to the rest of home or to the battles of the sea.
The police said the clothes may have been ripped from the body due to the sweeping tidal currents, but are investigating the exact cause of death.
The birds have been observed adapting their behaviour to use strong tidal currents in the Irish Sea to scour for fish.
It ends with a reference to a young man called Boyar Slat who has come up with a device that cleans up oceanic plastics by using tidal currents, feeding plastic through special nets.
Website visitmyharbour.com warns of highly tidal currents in the channel.
De la Luna's thesis, entitled 'Tidal Resource Assessment and Hydrodynamic Simulation of a SeaGen-Type Horizontal Axis Tidal Turbine in Verde Island Passage Philippines,' presented a theoretical application of a tidal turbine in the Verde Island passage, based on numerical modeling of tidal currents in the passage and a simulation of the tidal turbine representation during the peak month for tidal energy harvesting.
Winter shrimp season is upon us, when you can scoop up the delicious crustaceans with dip nets and cast nets as they flow on the tidal currents, especially on full moon nights.
Thus, it is vital for them to remain nearshore, coping with the tidal currents, especially the ebb currents which act to carry them away to the open sea.
When the sediment is dropped in the Cardiff grounds, much of it is swept away by the strong tidal currents. Maybe less than half reaches the bottom and much of that moves on in the fluctuating tidal currents.
The kinetic energy of tidal currents produces stable electricity supply.