Encyclopedia of Coastal Science

2005 Edition
| Editors: Maurice L. Schwartz

Depth of Disturbance

  • John P. Ahrens
Reference work entry
DOI: https://doi.org/10.1007/1-4020-3880-1_117


Depth of disturbance, is the depth to which wave action can be expected to disturb the underlying bottom sediment. Sources of disturbance other than wind waves are not discussed. The sediment is considered to be unconsolidated particles in the sand size range.


The approach adopted is to develop analytic expressions to estimate the depth of disturbance through the use of the velocity ratio,
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    Ahrens, J.P., and Hands, E.B., 1998. Parameterizing beach erosion/ accretion conditions. Proceedings of the 26th Coastal Engineering Conference, American Society of Civil Engineers, 2, pp. 2382–2394.Google Scholar
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    Dean, R.G., 1974. Evaluation and development of water wave theories for engineering application; Volume I—Presentation of research results; Volume II—Tabulation of dimensionless stream-function variables. Fort Belvoir, VA: Coastal Engineering Research Center Special Report No. 1.Google Scholar
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    Hallermeier, R.J., 1980. Sand motion initiation by water waves: two asymptotes. Journal of Waterway, Port, Coastal, and Ocean Engineering, ASCE 106(WW3): 299–318.Google Scholar


  1. 1.
    Beach ErosionGoogle Scholar
  2. 2.
    Beach ProcessesGoogle Scholar
  3. 3.
    Beach Sediment CharacteristicsGoogle Scholar
  4. 4.
    Depth of Closure on Sandy CoastsGoogle Scholar
  5. 5.

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© Springer 2005

Authors and Affiliations

  • John P. Ahrens

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