IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 2: Coastal Hydraulics: Form and Function : Influence of surf-beat on beach morphology and sediment transport
Influence of surf-beat on beach morphology and sediment transport
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Long waves, or Surf beat, in the coastal zone, have long been proposed to be important in influencing coastal morphology, but direct evidence is limited. This paper will present the results of novel experiments to investigate the influence of wave groups and long waves on coastal sediment transport. The data from two different experiments in small and large scale wave facilities will be compared, and both data sets show consistent results. The different influence of free long waves and wave groups is very evident, and they have opposite effects. The role of long waves and wave groups on beach response is discussed with an equilibrium state model. Considering the functional form for such a model suggests values for the effective relative fall velocity that produces the maximum rate of shoreward transport, or the maximum rate of beach accretion.
File Size : 1,388,119 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 2: Coastal Hydraulics: Form and Function
Date Published : 01/07/2011
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