TAAF
French Southern and Antarctic Territories.
Tidal bore
Wave accompanying the flood stream, observed in certain estuaries.
Tidal current
Horizontal component of the gravitational action of the Moon and the Sun.
Tidal observatory
Tidal observation site including the recording device, called a marigraph, the tidal scale and the levelling benchmarks placed nearby.
Tidal scale
Graduated scale used to read off the height of the tide directly with respect to the "scale datum", preferably located on the hydrographic datum.
Tide
Periodic movement of the sea level due to the effects of the gravitational action of the Moon and the Sun.
Tide curve
Graphic representation of the variations in the height of water.
Tide gauge
Apparatus used to record vertical movements of the sea.
Tropical year
Period of revolution of the sun on its orbit from vernal point to vernal point.
True anomaly
Angle between the direction of the true sun and that of the perihelion.
Types of tide
Diurnal tide, mixed tide, semi-diurnal tide and semi-diurnal tide with diurnal inequalities