Landsat : water quality surveillance of Roodeplaat Dam

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dc.contributor.advisorRüther, Heinzen_ZA
dc.contributor.authorHowman, Alison Men_ZA
dc.date.accessioned2016-02-17T07:11:04Z
dc.date.available2016-02-17T07:11:04Z
dc.date.issued1986en_ZA
dc.descriptionBibliography: pages 104-118.en_ZA
dc.description.abstractThe need for accurate, synoptic, up to date information, concerning the quality of South African impoundments, prompted a study into the relationship between Landsat reflectance data and chlorophyll ~ and turbidity in Roodeplaat Dam. Surface and integrated chlorophyll a as well as surface and integrated turbidity were collected simultaneously with the satellite's overpass, from 32 sampling sites on the impoundment. Six days, between 81.10 .14 and 82 .11.16, were cloud free and the data were analysed in order to establish the relationship between the specific water quality conditions and the satellite reflectance data. Prior to the analysis certain factors required attention. Firstly, it was important to accurately align the sampling sites with their corresponding Landsat pixels. Secondly, the satellite reflectance data were corrected for influences of haze and the angle of the sun. Thirdly, the requirement that the water quality surface reference data be representative of the range of conditions in the impoundment was recognised. Lastly, the interrelationship between chlorophyll a and turbidity and the multicollinearity evident between the four reflectance bands, demanded that a multi-variate statistical technique be implemented, in order to adequately analyse the available data.en_ZA
dc.identifier.apacitationHowman, A. M. (1986). <i>Landsat : water quality surveillance of Roodeplaat Dam</i>. (Thesis). University of Cape Town ,Faculty of Science ,School of Architecture, Planning and Geomatics. Retrieved from http://hdl.handle.net/11427/17068en_ZA
dc.identifier.chicagocitationHowman, Alison M. <i>"Landsat : water quality surveillance of Roodeplaat Dam."</i> Thesis., University of Cape Town ,Faculty of Science ,School of Architecture, Planning and Geomatics, 1986. http://hdl.handle.net/11427/17068en_ZA
dc.identifier.citationHowman, A. 1986. Landsat : water quality surveillance of Roodeplaat Dam. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Howman, Alison M AB - The need for accurate, synoptic, up to date information, concerning the quality of South African impoundments, prompted a study into the relationship between Landsat reflectance data and chlorophyll ~ and turbidity in Roodeplaat Dam. Surface and integrated chlorophyll a as well as surface and integrated turbidity were collected simultaneously with the satellite's overpass, from 32 sampling sites on the impoundment. Six days, between 81.10 .14 and 82 .11.16, were cloud free and the data were analysed in order to establish the relationship between the specific water quality conditions and the satellite reflectance data. Prior to the analysis certain factors required attention. Firstly, it was important to accurately align the sampling sites with their corresponding Landsat pixels. Secondly, the satellite reflectance data were corrected for influences of haze and the angle of the sun. Thirdly, the requirement that the water quality surface reference data be representative of the range of conditions in the impoundment was recognised. Lastly, the interrelationship between chlorophyll a and turbidity and the multicollinearity evident between the four reflectance bands, demanded that a multi-variate statistical technique be implemented, in order to adequately analyse the available data. DA - 1986 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1986 T1 - Landsat : water quality surveillance of Roodeplaat Dam TI - Landsat : water quality surveillance of Roodeplaat Dam UR - http://hdl.handle.net/11427/17068 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/17068
dc.identifier.vancouvercitationHowman AM. Landsat : water quality surveillance of Roodeplaat Dam. [Thesis]. University of Cape Town ,Faculty of Science ,School of Architecture, Planning and Geomatics, 1986 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/17068en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentSchool of Architecture, Planning and Geomaticsen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherApplied Scienceen_ZA
dc.titleLandsat : water quality surveillance of Roodeplaat Damen_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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