Surf beat

From Coastal Wiki
Jump to: navigation, search
Definition of Surf beat:
Long-periodic oscillation of the water line on the beach. The oscillation is related to Infragravity waves in the surf zone.
This is the common definition for Surf beat, other definitions can be discussed in the article


The surf beat period is typically in the order of one to a few minutes. Several infragravity wave motions can generate surf beat:


Infragravity waves
Edge waves
Shallow-water wave theory.


  1. Longuet-Higgins, M. S. and Stewart, R. W. 1962. Radiation stress and mass transport in gravity waves, with applications to ’surf beats’. J Fluid Mech 13: 481–504
  2. Bowen, A.J. and Guza, R.T. 1978. Edge Waves and Surf Beat. J. Geophys. Res. 83: 1913-1920
  3. Symonds, G., Huntley, D. A. and Bowen, A. J. 1982. Two-dimensional surf beat: Long wave generation by a time-varying breakpoint. J. Geophys. Res. 87: 492 – 498