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Landsat : water quality surveillance of Roodeplaat Dam
Bibliography: pages 104-118.
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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School of Architecture, Planning and Geomatics
2016
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| _version_ | 1867613145741131776 |
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| access_status_str | Open Access |
| author | Howman, Alison M |
| author2 | Rüther, Heinz |
| author_browse | Howman, Alison M Rüther, Heinz |
| author_facet | Rüther, Heinz Howman, Alison M |
| author_sort | Howman, Alison M |
| collection | Thesis |
| description | Bibliography: pages 104-118. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/17068 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:31:30.019Z |
| 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 | School of Architecture, Planning and Geomatics |
| publisherStr | School of Architecture, Planning and Geomatics |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/17068 Landsat : water quality surveillance of Roodeplaat Dam Howman, Alison M Rüther, Heinz Applied Science Bibliography: pages 104-118. 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. 2016-02-17T07:11:04Z 2016-02-17T07:11:04Z 1986 Master Thesis Masters MSc http://hdl.handle.net/11427/17068 eng application/pdf School of Architecture, Planning and Geomatics Faculty of Science University of Cape Town |
| spellingShingle | Applied Science Howman, Alison M Landsat : water quality surveillance of Roodeplaat Dam |
| thesis_degree_str | Master's |
| title | Landsat : water quality surveillance of Roodeplaat Dam |
| title_full | Landsat : water quality surveillance of Roodeplaat Dam |
| title_fullStr | Landsat : water quality surveillance of Roodeplaat Dam |
| title_full_unstemmed | Landsat : water quality surveillance of Roodeplaat Dam |
| title_short | Landsat : water quality surveillance of Roodeplaat Dam |
| title_sort | landsat water quality surveillance of roodeplaat dam |
| topic | Applied Science |
| url | http://hdl.handle.net/11427/17068 |
| work_keys_str_mv | AT howmanalisonm landsatwaterqualitysurveillanceofroodeplaatdam |