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About: Internal tide     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Tide107402519, within Data Space : dbpedia.org associated with source document(s)

Type: yago:WikicatTidesyago:Abstraction100002137yago:Event100029378yago:Happening107283608yago:PeriodicEvent107296190yago:PsychologicalFeature100023100yago:YagoPermanentlyLocatedEntityyago:Tide107402519 New Facet based on Instances of this Class

Internal tides are generated as the surface tides move stratified water up and down sloping topography, which produces a wave in the ocean interior. So internal tides are internal waves at a tidal frequency. The other major source of internal waves is the wind which produces internal waves near the inertial frequency. When a small water parcel is displaced from its equilibrium position, it will return either downwards due to gravity or upwards due to buoyancy. The water parcel will overshoot its original equilibrium position and this disturbance will set off an internal gravity wave. Munk (1981) notes, "Gravity waves in the ocean's interior are as common as waves at the sea surface-perhaps even more so, for no one has ever reported an interior calm."