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dc.contributor.authorGreer, S. D.
dc.contributor.authorMcIntosh, R.
dc.contributor.authorHarrison, S.
dc.contributor.authorPhillips, David
dc.contributor.authorMead, S.
dc.date.accessioned2016-05-26T23:02:55Z
dc.date.available2016-05-26T23:02:55Z
dc.date.issued2015-09
dc.identifier.isbn9781922107794
dc.identifier.urihttps://hdl.handle.net/10652/3394
dc.description.abstractRaglan (Whaingaroa) Harbour is located on the west coast of New Zealand’s North Island and is bordered by the Raglan township on the southern side close to the entrance. Land use in the watershed is dominated by dairy farming and forestry, which impact harbour water quality. A consented wastewater outfall is located at the harbour mouth close to the densely developed and populated area of the catchment. Over the years, there have been a number of reported spills and unlicensed releases from the treatment facility into the harbour. However, there is little context of the scale of the operation, and of the spills, against contaminant levels from inflowing rivers which are affected by land use practices. We address these uncertainties using a numerical modelling approach. Here we present a calibrated hydrodynamic model linked to a 13-river catchment model. Both of these models are used to drive a subsequent water quality model which simulates the transport and decay of Faecal Coliforms (FC) in the harbour. Model runs include a yearlong simulation of 2012 in its entirety, as well as a wastewater spill event that occurred in June of 2013. Results illustrate the seasonality of the water quality in the harbour with the largest concentrations of FC occurring in winter. It also illustrates the large scale influence of the rivers relative to the outfall with regards to FC concentrations. However, uncertainties remain in the FC component of the water quality model which needs to be addressed in future worken_NZ
dc.language.isoenen_NZ
dc.publisherEngineers Australia and IPENZen_NZ
dc.relation.urihttp://www.ecoast.co.nz/wp-content/uploads/Greer-S.pdfen_NZ
dc.subjectRaglan (Whaingaroa Harbour, N.Z.)en_NZ
dc.subjectwater quality managementen_NZ
dc.subjecthydrodynamicsen_NZ
dc.subjectbacterial pollution of wateren_NZ
dc.subjectland useen_NZ
dc.subjecthydrodynamic modellingen_NZ
dc.subjectfaecal coliforms (FC)en_NZ
dc.titleUnderstanding water quality in Raglan Harbouren_NZ
dc.typeConference Contribution - Paper in Published Proceedingsen_NZ
dc.rights.holderEngineers Australia and IPENZen_NZ
dc.subject.marsden090508 Water Quality Engineeringen_NZ
dc.identifier.bibliographicCitationGreer, S. D., McIntosh, R., Harrison, S. & Phillips, D. (2015). Understanding water quality in Raglan Harbour In Australasian Coasts & Ports Conference 2015: 22nd Australasian Coastal and Ocean Engineering Conference and the 15th Australasian Port and Harbour Conference. Auckland, New Zealand: Engineers Australia and IPENZ, 2015: 352-357.en_NZ
unitec.institutioneCoast Marine Consulting and Research (Raglan, New Zealand)en_NZ
unitec.institutionUnitec Institute of Technologyen_NZ
unitec.institutionUniversity of Waikatoen_NZ
unitec.publication.spage352en_NZ
unitec.publication.lpage357en_NZ
unitec.publication.titleAustralasian Coasts & Ports Conference 2015: 22nd Australasian Coastal and Ocean Engineering Conference and the 15th Australasian Port and Harbour Conferenceen_NZ
unitec.conference.titleAustralasian Coasts & Ports Conference 2015 / 22nd Australasian Coastal and Ocean Engineering Conference (ACOEC) and the 15th Australasian Port and Harbour Conference (APHC) : Engineers Australia and IPENZ, 2015:en_NZ
unitec.conference.titleAustralasian Coasts & Ports Conference 2015en_NZ
unitec.conference.title15th Australasian Port and Harbour Conference (APHC) : Engineers Australia and IPENZ, 2015:en_NZ
unitec.conference.orgInstitution of Professional Engineers New Zealand (IPENZ)en_NZ
unitec.conference.orgEngineers Australiaen_NZ
unitec.conference.locationAuckland, New Zealanden_NZ
unitec.conference.sdate2015-09-15
unitec.conference.edate2015-09-18
unitec.peerreviewedyesen_NZ
unitec.identifier.roms57840en_NZ


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