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  2. Dispersion (water waves) - Wikipedia

    en.wikipedia.org/wiki/Dispersion_(water_waves)

    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.

  3. Airy wave theory - Wikipedia

    en.wikipedia.org/wiki/Airy_wave_theory

    Wave characteristics. Dispersion of gravity waves on a fluid surface. Phase and group velocity divided by √ gh as a function of ⁠ h / λ ⁠. A: phase velocity, B: group velocity, C: phase and group velocity √ gh valid in shallow water.

  4. Surface-wave magnitude - Wikipedia

    en.wikipedia.org/wiki/Surface-wave_magnitude

    The formula to calculate surface wave magnitude is: [3] = ⁡ + (), where A is the maximum particle displacement in surface waves (vector sum of the two horizontal displacements) in μm, T is the corresponding period in s (usually 20 ± 2 seconds), Δ is the epicentral distance in °, and

  5. Shallow water equations - Wikipedia

    en.wikipedia.org/wiki/Shallow_water_equations

    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 ...

  6. Rayleigh wave - Wikipedia

    en.wikipedia.org/wiki/Rayleigh_wave

    Rayleigh waves are generated by the interaction of P- and S- waves at the surface of the earth, and travel with a velocity that is lower than the P-, S-, and Love wave velocities. Rayleigh waves emanating outward from the epicenter of an earthquake travel along the surface of the earth at about 10 times the speed of sound in air (0.340 km/s ...

  7. Surface wave - Wikipedia

    en.wikipedia.org/wiki/Surface_wave

    This radiative ground wave is known as Norton surface wave, or more properly Norton ground wave, because ground waves in radio propagation are not confined to the surface. Another type of surface wave is the non-radiative, bound-mode Zenneck surface wave or Zenneck–Sommerfeld surface wave .

  8. Dispersion relation - Wikipedia

    en.wikipedia.org/wiki/Dispersion_relation

    Frequency dispersion of surface gravity waves on deep water. The red square moves with the phase velocity, and the green dots propagate with the group velocity. In this deep-water case, the phase velocity is twice the group velocity. The red square traverses the figure in the time it takes the green dot to traverse half.

  9. Phase velocity - Wikipedia

    en.wikipedia.org/wiki/Phase_velocity

    Frequency dispersion in groups of gravity waves on the surface of deep water. The red square moves with the phase velocity, and the green circles propagate with the group velocity. In this deep-water case, the phase velocity is twice the group velocity. The red square overtakes two green circles when moving from the left to the right of the figure.