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dc.contributor.authorAli, Ayuben_US
dc.contributor.authorLemckert, Charlesen_US
dc.date.accessioned2017-05-03T13:28:14Z
dc.date.available2017-05-03T13:28:14Z
dc.date.issued2009en_US
dc.date.modified2010-05-19T06:29:22Z
dc.identifier.issn02727714en_US
dc.identifier.doi10.1016/j.ecss.2009.04.017en_AU
dc.identifier.urihttp://hdl.handle.net/10072/25989
dc.description.abstractThis study describes a new convenient and robust system developed to measure benthic boundary layer properties, with emphasis placed on the determination of bed shear stress and roughness height distribution within estuarine systems by using velocity measurements. This system consisted of a remotely operated motorised traverser that allowed a single ADV to collect data between 0 and 1 m above the bed. As a case study, we applied the proposed traversing system to investigate bottom boundary layer (BBL) hydraulic properties within Coombabah Creek, Queensland, Australia. Four commonly-employed techniques: (1) Log-Profile (LP); (2) Reynolds stress (RS); (3) Turbulent Kinetic Energy (TKE); and (4) Inertial Dissipation (ID) used to estimate bed shear stresses from velocity measurements were compared. Bed shear stresses estimated with these four methods agreed reasonably well; of these, the LP method was found to be most useful and reliable. Additionally, the LP method permits the calculation of roughness height, which the other three methods do not. An average value of bed shear stress of 0.46 N/m2, roughness height of 4.3 mm, and drag coefficient of 0.0054 were observed within Coombabah Creek. Results are consistent with that reported for several other silty bed estuaries.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.format.extent378005 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherElsevieren_US
dc.publisher.placeUnited Kingdomen_US
dc.publisher.urihttp://www.sciencedirect.com/science/journal/02727714en_AU
dc.relation.ispartofstudentpublicationNen_AU
dc.relation.ispartofpagefrom425en_US
dc.relation.ispartofpageto433en_US
dc.relation.ispartofissue4en_US
dc.relation.ispartofjournalEstuarine, Coastal and Shelf Scienceen_US
dc.relation.ispartofvolume83en_US
dc.rights.retentionYen_AU
dc.subject.fieldofresearchPhysical Oceanographyen_US
dc.subject.fieldofresearchcode040503en_US
dc.titleA traversing system to measure bottom boundary layer hydraulic propertiesen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.facultyGriffith Sciences, Griffith School of Engineeringen_US
gro.rights.copyrightCopyright 2009 Elsevier. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.en_AU
gro.date.issued2009
gro.hasfulltextFull Text


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