Tides

300px|thumb|upright=1|Simplified schematic of only the lunar portion of Earth's tides, showing (exaggerated) high tides at the sublunar point and its antipodal point|antipode for the hypothetical case of an ocean of constant depth without land, and on the assumption that Earth is not rotating; otherwise there is a lag angle. Solar tides not shown.|alt= right|thumb|Earth's rotation drags the position of the tidal bulge ahead of the position directly under the Moon showing the lag angle. thumb|In Maine (U.S.), low tide occurs roughly at moonrise and high tide with a high Moon, corresponding to t

bay on the Atlantic coast of Canada noted for high tides

secondary effect of the force of gravity of one body on another

technology to convert the energy from tides into useful forms of power

with regards to an astronomical body, the region in which it dominates the attraction of satellites

area between tide marks

island accessible by foot at low tide

rocky pool on seashore, separated as pool at low tide, filled with seawater

tidal force experienced by objects subject to the gravitational field of a galaxy

displacement of the solid earth's surface caused by the gravity of the Moon and Sun

vertical datum in use in large parts of Western Europe, originally created for use in the Netherlands

point of zero amplitude of one harmonic constituent of the tide

vertical difference between the high tide and the succeeding low tide

river whose flow and level are influenced by tides

aspect of history

tidal phenomenon in Western Australia where the tide rises and falls faster on one side of a gap than the other, creating a waterfall up to 5m high on a spring tide

fast-moving tidal flow passing through a constriction, forming waves, eddies and strong currents

parameters describing a planet's rigidity

short period in a body of tidal water when the water is completely unstressed, and there is no movement either way in the tidal stream, and which occurs before the direction of the tidal stream reverses

time lag from the Moon passing overhead, to the next high or low tide.