Measurements of net cross-shore sediment flux at the timescale of individual swashes

C.E. Blenkinsopp, I.L. Turner, G. Masselink, P.R. Russell

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

This paper reports on a large scale field experiment designed to examine hydrodynamic and morphodynamic processes in the swash zone. The data obtained during this experiment have enabled some of the first estimates to be made of net cross-shore sediment flux driven by large numbers of individual swashes derived using high-frequency measurements of morphological change. The results suggest that individual waves regularly deposit or remove hundreds of kilograms of sand per meter width of beach, however these short term morphological changes tend to balance out over longer timescales ensuring that beaches remain relatively stable. Comparison of measured sediment fluxes with those predicted by an energetics approach highlight the difficulty of modelling swash zone sediment transport.
Original languageEnglish
Title of host publication19th Australasian Coastal and Ocean Engineering Conference 2009 and the 12th Australasian Port and Harbour Conference 2009 (COASTS AND PORTS 2009)
PublisherCurran Associates
Pages759-767
Number of pages9
ISBN (Print)9781622764297
Publication statusPublished - 2009
Event19th Australasian Coastal and Ocean Engineering Conference 2009 and the 12th Australasian Port and Harbour Conference 2009 (COASTS AND PORTS 2009) - Wellington, New Zealand
Duration: 16 Sep 200918 Sep 2009

Conference

Conference19th Australasian Coastal and Ocean Engineering Conference 2009 and the 12th Australasian Port and Harbour Conference 2009 (COASTS AND PORTS 2009)
CountryNew Zealand
CityWellington
Period16/09/0918/09/09

Keywords

  • swash
  • sediment transport
  • morphodynamics
  • beachface
  • bed-levels

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    Blenkinsopp, C. E., Turner, I. L., Masselink, G., & Russell, P. R. (2009). Measurements of net cross-shore sediment flux at the timescale of individual swashes. In 19th Australasian Coastal and Ocean Engineering Conference 2009 and the 12th Australasian Port and Harbour Conference 2009 (COASTS AND PORTS 2009) (pp. 759-767). Curran Associates.