Seasonal and interannual variability of surface chlorophyll-a and sea surface temperature in the Delgoa Bight, southern Mozambique

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dc.contributor.advisorShillington, Franken_ZA
dc.contributor.authorDove, Veronica Fernandoen_ZA
dc.date.accessioned2016-06-09T11:21:08Z
dc.date.available2016-06-09T11:21:08Z
dc.date.issued2015en_ZA
dc.description.abstractMulti satellite data for surface chlorophyll‐a (Chl‐a), sea surface temperature (SST), sea surface wind (SSW) and sea level anomalies (SLA) have been obtained and analysed over the Delagoa Bight (24‐28°S, 32‐36°E), southern Mozambique for the period 2003‐2012 at monthly time scales. Both descriptive and quantitative analysis using wavelets have been used to obtain a better understanding of the nature of the interannual, seasonal and intra- seasonal variability of the data. Strong seasonal structure and interannual modulation were observed in the area averaged Chl‐a concentration and SST. The lowest maximum in monthly Chl-a was in December (0.127 mg.m--‐3) and the highest in August (0.541 mg.m‐3). The lowest maximum in monthly SST was in August (21.8°C) and the maximum in February (27.9°C). The Chl‐a and SST were strongly anti-correlated and both exhibited a well- defined seasonal cycle, contrasting with the SSW and SLA. The daily observations of temperature at 17 meters depth, from the northern Delagoa Bight at Ponta Zavora (24.48°S- 35.24°E) for the period 2006‐2011, have confirmed a seasonal signal with amplitude of about 6.5°C. Cool coastal water events were found mostly in summer and spring, with maximum amplitude of 6°C. Further analysis of this daily data did not reveal the timing of such events to be regular.en_ZA
dc.identifier.apacitationDove, V. F. (2015). <i>Seasonal and interannual variability of surface chlorophyll-a and sea surface temperature in the Delgoa Bight, southern Mozambique</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Oceanography. Retrieved from http://hdl.handle.net/11427/19978en_ZA
dc.identifier.chicagocitationDove, Veronica Fernando. <i>"Seasonal and interannual variability of surface chlorophyll-a and sea surface temperature in the Delgoa Bight, southern Mozambique."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Oceanography, 2015. http://hdl.handle.net/11427/19978en_ZA
dc.identifier.citationDove, V. 2015. Seasonal and interannual variability of surface chlorophyll-a and sea surface temperature in the Delgoa Bight, southern Mozambique. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Dove, Veronica Fernando AB - Multi satellite data for surface chlorophyll‐a (Chl‐a), sea surface temperature (SST), sea surface wind (SSW) and sea level anomalies (SLA) have been obtained and analysed over the Delagoa Bight (24‐28°S, 32‐36°E), southern Mozambique for the period 2003‐2012 at monthly time scales. Both descriptive and quantitative analysis using wavelets have been used to obtain a better understanding of the nature of the interannual, seasonal and intra- seasonal variability of the data. Strong seasonal structure and interannual modulation were observed in the area averaged Chl‐a concentration and SST. The lowest maximum in monthly Chl-a was in December (0.127 mg.m--‐3) and the highest in August (0.541 mg.m‐3). The lowest maximum in monthly SST was in August (21.8°C) and the maximum in February (27.9°C). The Chl‐a and SST were strongly anti-correlated and both exhibited a well- defined seasonal cycle, contrasting with the SSW and SLA. The daily observations of temperature at 17 meters depth, from the northern Delagoa Bight at Ponta Zavora (24.48°S- 35.24°E) for the period 2006‐2011, have confirmed a seasonal signal with amplitude of about 6.5°C. Cool coastal water events were found mostly in summer and spring, with maximum amplitude of 6°C. Further analysis of this daily data did not reveal the timing of such events to be regular. DA - 2015 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2015 T1 - Seasonal and interannual variability of surface chlorophyll-a and sea surface temperature in the Delgoa Bight, southern Mozambique TI - Seasonal and interannual variability of surface chlorophyll-a and sea surface temperature in the Delgoa Bight, southern Mozambique UR - http://hdl.handle.net/11427/19978 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/19978
dc.identifier.vancouvercitationDove VF. Seasonal and interannual variability of surface chlorophyll-a and sea surface temperature in the Delgoa Bight, southern Mozambique. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Oceanography, 2015 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/19978en_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.otherPhysical Oceanographyen_ZA
dc.titleSeasonal and interannual variability of surface chlorophyll-a and sea surface temperature in the Delgoa Bight, southern Mozambiqueen_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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