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Surface waves span a wide frequency range, and the period of waves that are most damaging is usually 10 seconds or longer. Surface waves can travel around the globe many times from the largest earthquakes. Surface waves are caused when P waves and S waves come to the surface. Examples are the waves at the surface of water and air (ocean surface ...
Shallow-water equations can be used to model Rossby and Kelvin waves in the atmosphere, rivers, lakes and oceans as well as gravity waves in a smaller domain (e.g. surface waves in a bath). In order for shallow-water equations to be valid, the wavelength of the phenomenon they are supposed to model has to be much larger than the depth of the ...
Stokes drift – Average velocity of a fluid parcel in a gravity wave; Undertow (water waves) – Return flow below nearshore water waves. Ursell number – Dimensionless number indicating the nonlinearity of long surface gravity waves on a fluid layer. Wave shoaling – Effect by which surface waves entering shallower water change in wave height
Dispersion of gravity waves on a fluid surface. Phase and group velocity divided by shallow-water phase velocity √ gh as a function of relative depth h / λ. Blue lines (A): phase velocity; Red lines (B): group velocity; Black dashed line (C): phase and group velocity √ gh valid in shallow water.
For example, if a stone is thrown into the middle of a very still pond, a circular pattern of waves with a quiescent center appears in the water, also known as a capillary wave. The expanding ring of waves is the wave group or wave packet , within which one can discern individual waves that travel faster than the group as a whole.
Edge wave, a surface gravity wave fixed by refraction against a rigid boundary; Faraday wave, a type of wave in liquids; Gravity wave, in fluid dynamics; Internal wave, a wave within a fluid medium; Shock wave, in aerodynamics; Sound wave, a wave of sound through a medium such as air or water; Tidal wave, a scientifically incorrect name for a ...
How Love waves work. In elastodynamics, Love waves, named after Augustus Edward Hough Love, are horizontally polarized surface waves.The Love wave is a result of the interference of many shear waves guided by an elastic layer, which is welded to an elastic half space on one side while bordering a vacuum on the other side.
Rayleigh waves, also called ground roll, are surface waves that propagate with motions that are similar to those of waves on the surface of water (note, however, that the associated seismic particle motion at shallow depths is typically retrograde, and that the restoring force in Rayleigh and in other seismic waves is elastic, not gravitational ...
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