An ADCP study of subtidal scale density-driven exchange in Saldanha Bay, South Africa

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dc.contributor.advisorMonteiro, Pedro M Sen_ZA
dc.contributor.advisorWaldron, Howarden_ZA
dc.contributor.advisorBrundrit, Geoffen_ZA
dc.contributor.authorStewart, Helen Francesen_ZA
dc.date.accessioned2014-08-13T19:48:06Z
dc.date.available2014-08-13T19:48:06Z
dc.date.issued2003en_ZA
dc.descriptionBibliography: leaves 33-34.en_ZA
dc.description.abstractAn ADCP and water-column temperature study was conducted to determine the circulation aspect of subtidal-scale, density-driven exchange in Saldanha Bay, South Africa. Density-driven exchange conditions develop in response to synoptic-scale wind events in the southern Benguela region, even under light (<5m s-') wind conditions. During a density-driven exchange event, directionally opposing bi-level flow, similar to an estuarine system, develops in response to remote upwelling-favourable winds. The bi-level flow component occurs in two distinct bands, bayward at 0-9m height from bottom and seaward 15-20m height off bottom, and is very sensitive to changes in wind forcing. Observations of current behaviour are added to the four-phase conceptual model of density-driven exchange developed by Monteiro and Largier (1999). In addition, estimates of bay flushing based on ADCP current velocities and the four-phase conceptual model are calculated and implications of shelf water influx into Saldanha Bay are discussed.en_ZA
dc.identifier.apacitationStewart, H. F. (2003). <i>An ADCP study of subtidal scale density-driven exchange in Saldanha Bay, South Africa</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Oceanography. Retrieved from http://hdl.handle.net/11427/6455en_ZA
dc.identifier.chicagocitationStewart, Helen Frances. <i>"An ADCP study of subtidal scale density-driven exchange in Saldanha Bay, South Africa."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Oceanography, 2003. http://hdl.handle.net/11427/6455en_ZA
dc.identifier.citationStewart, H. 2003. An ADCP study of subtidal scale density-driven exchange in Saldanha Bay, South Africa. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Stewart, Helen Frances AB - An ADCP and water-column temperature study was conducted to determine the circulation aspect of subtidal-scale, density-driven exchange in Saldanha Bay, South Africa. Density-driven exchange conditions develop in response to synoptic-scale wind events in the southern Benguela region, even under light (<5m s-') wind conditions. During a density-driven exchange event, directionally opposing bi-level flow, similar to an estuarine system, develops in response to remote upwelling-favourable winds. The bi-level flow component occurs in two distinct bands, bayward at 0-9m height from bottom and seaward 15-20m height off bottom, and is very sensitive to changes in wind forcing. Observations of current behaviour are added to the four-phase conceptual model of density-driven exchange developed by Monteiro and Largier (1999). In addition, estimates of bay flushing based on ADCP current velocities and the four-phase conceptual model are calculated and implications of shelf water influx into Saldanha Bay are discussed. DA - 2003 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2003 T1 - An ADCP study of subtidal scale density-driven exchange in Saldanha Bay, South Africa TI - An ADCP study of subtidal scale density-driven exchange in Saldanha Bay, South Africa UR - http://hdl.handle.net/11427/6455 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/6455
dc.identifier.vancouvercitationStewart HF. An ADCP study of subtidal scale density-driven exchange in Saldanha Bay, South Africa. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Oceanography, 2003 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/6455en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Oceanographyen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherOceanographyen_ZA
dc.titleAn ADCP study of subtidal scale density-driven exchange in Saldanha Bay, South Africaen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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