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Interaction between breaking/broken waves and infragravity-scale phenomena to control sediment suspension transport in the surf zone

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dc.contributor.author Smith, GG en_US
dc.contributor.author Mocke, GP en_US
dc.date.accessioned 2007-02-06T09:04:24Z en_US
dc.date.accessioned 2007-06-07T10:08:41Z
dc.date.available 2007-02-06T09:04:24Z en_US
dc.date.available 2007-06-07T10:08:41Z
dc.date.copyright en_US
dc.date.issued 2002-07-30 en_US
dc.identifier.citation Smith, GG and Mocke, GP. 2002. Interaction between breaking/broken waves and infragravity-scale phenomena to control sediment suspension transport in the surf zone. Marine Geology, vol. 187, 04 March, pp 329-345 en_US
dc.identifier.issn 0025-3227 en_US
dc.identifier.uri http://hdl.handle.net/10204/1492 en_US
dc.identifier.uri http://hdl.handle.net/10204/1492
dc.description.sponsorship Time series of near-bed sediment, water-level and velocity were measured in the field and laboratory and analysed to investigate (a) the role of breaking/broken waves, (b) the predominance of infragravity-scale transport processes in the surf zone, and (c) the influence of infragravity processes in creating the right conditions for suspension by breaking/broken waves. Instantaneous suspended sediment concentrations were measured using optical backscatter sensors, which were found to be sensitive to sediment size, cohesive sediment in suspension and bubbles. A simple numerical filter was applied to remove the erroneous bubble signal. Suspension was found to be correlated with wave breaker bores and an associated increase in high-frequency velocities, the latter deemed to be caused by surface-generated turbulence. Infragravity-scale sediment transport flux was found to be more significant than incident-scale flux in the transition and inner surf zones. Sediment suspension was further found to be related to the onset of lower water-levels associated with infragravity wave action, which corresponded with a predominance of breaking/broken waves. These breaking/broken waves (which are induced by the low water-level) are deemed to be the cause of this suspension. en_US
dc.format.extent 551885 bytes en_US
dc.format.mimetype application/pdf en_US
dc.language.iso en en_US
dc.publisher Elsevier Science BV en_US
dc.rights Copyright: 2002 Elsevier Science BV en_US
dc.source en_US
dc.subject Wave breaker turbulence en_US
dc.subject Surf zones en_US
dc.subject Sediment suspension en_US
dc.subject Optical backscatter sensor en_US
dc.subject Sediment transport en_US
dc.title Interaction between breaking/broken waves and infragravity-scale phenomena to control sediment suspension transport in the surf zone en_US
dc.type Article en_US
dc.identifier.apacitation Smith, G., & Mocke, G. (2002). Interaction between breaking/broken waves and infragravity-scale phenomena to control sediment suspension transport in the surf zone. http://hdl.handle.net/10204/1492 en_ZA
dc.identifier.chicagocitation Smith, GG, and GP Mocke "Interaction between breaking/broken waves and infragravity-scale phenomena to control sediment suspension transport in the surf zone." (2002) http://hdl.handle.net/10204/1492 en_ZA
dc.identifier.vancouvercitation Smith G, Mocke G. Interaction between breaking/broken waves and infragravity-scale phenomena to control sediment suspension transport in the surf zone. 2002; http://hdl.handle.net/10204/1492. en_ZA
dc.identifier.ris TY - Article AU - Smith, GG AU - Mocke, GP DA - 2002-07-30 DB - ResearchSpace DP - CSIR KW - Wave breaker turbulence KW - Surf zones KW - Sediment suspension KW - Optical backscatter sensor KW - Sediment transport LK - https://researchspace.csir.co.za PY - 2002 SM - 0025-3227 T1 - Interaction between breaking/broken waves and infragravity-scale phenomena to control sediment suspension transport in the surf zone TI - Interaction between breaking/broken waves and infragravity-scale phenomena to control sediment suspension transport in the surf zone UR - http://hdl.handle.net/10204/1492 ER - en_ZA


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