Seasonal and tidal variations of sediment transport patterns in the Saint John Inner Harbour

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dc.contributor.advisorHaralampides, Katy
dc.contributor.advisorWilson, Bruce
dc.contributor.authorMelanson, Jeff A.
dc.date.accessioned2023-03-01T16:17:20Z
dc.date.available2023-03-01T16:17:20Z
dc.date.issued2012
dc.date.updated2023-03-01T15:01:18Z
dc.description.abstractThe Saint John Harbour is located along the Bay of Fundy in southern New Brunswick and serves as the primary outlet for the Saint John River. Sediment movement within the Saint John Harbour is a concern from both an ecological and operational perspective. Seasonal measurements of current velocity and suspended sediment concentration (SSC) have been obtained by deploying two acoustic Doppler current profilers (ADCPs) in the inner harbour. ADCP observations spanned several months and were nearly continuous, thus allowing for an in-depth analysis of meteorological and tidal influences on observed hydrodynamics. A comparative assessment was conducted for spring and neap tides, storm surges, and changes in fluvial input. It was observed at both deployment locations that the intruding salt wedge frequently contained high SSC. The salt wedge is believed to be a major contributor of sediment accretion in the inner harbour, particularly during winter storm surges when river discharge is reduced. The Courtenay Bay Channel was observed to be more sensitive to river level, with only winter storms resulting in a landward average sediment flux. Observations made near Courtenay Bay Channel also suggested the presence of a cross channel flow pattern from an adjacent inter-tidal mudflat. This cross channel flow was only observed during spring freshet conditions and contained high SSC. Hydrodynamic observations from the study were compared with published estuarine theory. Results of the study will help to further define hydrodynamic processes in the Saint John Harbour.
dc.description.copyright© Jeff A. Melanson, 2012
dc.formattext/xml
dc.format.extentxix, 120 pages
dc.format.mediumelectronic
dc.identifier.oclc(OCoLC)1337487560en
dc.identifier.otherThesis 9100en
dc.identifier.urihttps://unbscholar.lib.unb.ca/handle/1882/13326
dc.language.isoen_CA
dc.publisherUniversity of New Brunswick
dc.rightshttp://purl.org/coar/access_right/c_abf2
dc.subject.disciplineCivil Engineering
dc.subject.lcshSaint John River (Me. and N.B.)en
dc.subject.lcshHydrodynamics.en
dc.subject.lcshSuspended sediments--New Brunswick--Saint John.en
dc.titleSeasonal and tidal variations of sediment transport patterns in the Saint John Inner Harbour
dc.typemaster thesis
thesis.degree.disciplineCivil Engineering
thesis.degree.fullnameMaster of Science in Engineering
thesis.degree.grantorUniversity of New Brunswick
thesis.degree.levelmasters
thesis.degree.nameM.Sc.E.

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