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Eng ID Term Definition
5461
tidal observations
See OBSERVATION.
5462
tidal prediction
See TIDE PREDICTION.
5463
tidal range
See RANGE OF TIDE.
5464
tidal rise
See RISE OF TIDE.
5465
tidal stream
See CURRENT: TIDAL.
5466
tidal theories
The different theories trying to des­cribe the tidal phenomena.
5467
tidal water
Any water the level of which changes periodically due to tidal action. See TIDEWATER.
5468
tidal wave
See WAVE.
5469
tide
The periodic RISE and fall of the surface of OCEANS, BAYS, etc., due principally to the gravita­tional interactions between the MOON, SUN an... more
The periodic RISE and fall of the surface of OCEANS, BAYS, etc., due principally to the gravita­tional interactions between the MOON, SUN and EARTH.
5470
tide: analysis
The mathematical processes by which the obser­ved TIDE or TIDAL CURRENT are analyzed to obtain constitu­ents and statistics.
5471
tide(s): apogean
TIDES of decreased RANGE occurring when the MOON is near APOGEE.
5472
tide: astronomical
TIDE due to the attraction of the SUN and MOON, in contrast to a METEOROLOGICAL TIDE, caused by meterological conditions. EQUILIBRIUM TIDE.
5473
tide: compound
A tide constituent with a SPEED equal to the sum or dif­ference of the SPEEDS of two or more basic constituents. Compound tides usually occu... more
A tide constituent with a SPEED equal to the sum or dif­ference of the SPEEDS of two or more basic constituents. Compound tides usually occur in SHALLOW WATER regions. See SHALLOW WATER CONSTITUENT.
5474
tide: diurnal
A TIDE in which the TIDAL CYCLE consists of one HIGH WATER and one LOW WATER each TIDAL DAY. In British terminology also called single day t... more
A TIDE in which the TIDAL CYCLE consists of one HIGH WATER and one LOW WATER each TIDAL DAY. In British terminology also called single day tide.
5475
tide: double
A double-headed TIDE. Also called agger. See HIGH WATER: DOUBLE and LOW WATER: DOUBLE.
5476
tide: earth
Periodic movement of the EARTH's CRUST caused by the TIDE-PRODUCING FORCES of the MOON and SUN.
5477
tide: ebb
See TIDE: FALLING.
5478
tide(s): equatorial
TIDES that occur approximately every two weeks when the MOON is over the EQUATOR. At these times, the MOON produces minimum DIURNAL INEQUA­L... more
TIDES that occur approximately every two weeks when the MOON is over the EQUATOR. At these times, the MOON produces minimum DIURNAL INEQUA­LITY in the TIDE.
5479
tide: equilibrium
A hypothe­tical TIDE based upon the assumption that the water responds, instantly to the TIDE-PRODUCING FORCES of the MOON and SUN, and form... more
A hypothe­tical TIDE based upon the assumption that the water responds, instantly to the TIDE-PRODUCING FORCES of the MOON and SUN, and forms a surface of EQUILIBRIUM under the action of these force­s, disregarding friction, inertia and the irregu­lar distribution of the land masses.
5480
tide(s): equinoctial spring
Those TIDES occurring near the EQUINOXES when the FULL or NEW MOON and the SUN have little or low DECLINATION and SPRING TIDES of greater RA... more
Those TIDES occurring near the EQUINOXES when the FULL or NEW MOON and the SUN have little or low DECLINATION and SPRING TIDES of greater RANGE than the average occur, particularly if the MOON is also nearly in PERIGEE.