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Entrainment in Saldanha Bay
Bibliography: pages 64-67.
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| Format: | Thesis |
| Language: | English |
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Department of Oceanography
2016
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| _version_ | 1867613550333132800 |
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| access_status_str | Open Access |
| author | Spolander, Bruce John |
| author_browse | Spolander, Bruce John |
| author_facet | Spolander, Bruce John |
| author_sort | Spolander, Bruce John |
| collection | Thesis |
| description | Bibliography: pages 64-67. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/19819 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:37:55.925Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | Department of Oceanography |
| publisherStr | Department of Oceanography |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/19819 Entrainment in Saldanha Bay Spolander, Bruce John Oceanography Bibliography: pages 64-67. Saldanha Bay is located lOOkm north of Cape Town, along the south western coast of South Africa, at a latitude of approximately 33° S. In 1975 major harbour works, including the construction of an iron ore jetty, divided Saldanha Bay into two distinct bays. The bay to the north of the jetty has become known as Small Bay, while the bay to the south is commonly referred to as Big Bay. Big Bay is connected at its southern end to the shallow Langebaan Lagoon system, and to the west with the Benguela upwelling system (see figure 1.1). The oceanography of the shelf outside the bay is dominated by the coastal upwelling system (Shannon 1985). The equatorward winds which predominate for much of the year, drive an offshore flux of surface water, which is replaced near the coast by nutrient-rich water from deeper layers. These winds are the result of an interplay between the South Atlantic High Pressure Cell, a thermal low that forms over southern Africa in summer, coastal lows, and eastward moving extra tropical cyclones (Shannon 1985). In summer, the band of extra tropical cyclones associated with the jetstream moves to the south of its winter position, while the South Atlantic High intensifies and moves approximately 6° to the south (Preston-Whyte and Tyson 1988), creating a pressure gradient over the Benguela region. The presence of the thermal low over the adjacent subcontinent increases the existing pressure gradient, and enhances the equatorward air flow. This seasonal modulation of upwelling favourable winds results in an upwelling season that extends from about September to March (Shannon 1985). During this period, there is also synoptic modulation, provided by wind relaxation or reversal events. These events are either associated with the passage of a cyclone to the south of the continent, or with a coastal low passing along the coast (Shannon 1985). 2016-05-24T09:15:39Z 2016-05-24T09:15:39Z 1996 Master Thesis Masters MSc http://hdl.handle.net/11427/19819 eng application/pdf Department of Oceanography Faculty of Science University of Cape Town |
| spellingShingle | Oceanography Spolander, Bruce John Entrainment in Saldanha Bay |
| thesis_degree_str | Master's |
| title | Entrainment in Saldanha Bay |
| title_full | Entrainment in Saldanha Bay |
| title_fullStr | Entrainment in Saldanha Bay |
| title_full_unstemmed | Entrainment in Saldanha Bay |
| title_short | Entrainment in Saldanha Bay |
| title_sort | entrainment in saldanha bay |
| topic | Oceanography |
| url | http://hdl.handle.net/11427/19819 |
| work_keys_str_mv | AT spolanderbrucejohn entrainmentinsaldanhabay |