Satellite observation of ocean colour off the South African West Coast
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie/South African Journal of Science and Technology
| Field | Value | |
| Title | Satellite observation of ocean colour off the South African West Coast Satellietwaarneming van oseaankleur aan die Suid-Afrikaanse Weskus | |
| Creator | Walters, N. M. | |
| Description | The Coastal Zone Colour Scanner (CZCS) on board of the Nimbus-7 satellite measures ocean radiance at different wavelengths in order to map phytoplankton pigment distributions and sediment distributions as well as temperature patterns in the coastal zone. A series of optical and biological measurements were carried out along the Cape West Coast to determine the relationship between ocean colour and phytoplankton pigment concentration. This paper presents a brief description of the algorithm used to determine phytoplankton pigment from satellite data, which is then compared with sea data collected during February 1979 off the West Coast. Results indicate that the pigments can be determined with a accuracy of factor 2, which compares favourably with the results obtained by other investigators. It appears that this new method of pigment determination on a global scale will provide an important tool in the study of upwelling processes and in a more efficient management of fish resources. Die seekleuraftaster (SKA) aan boord van die Nimbus- 7-satelliet meet oseaanradiansie by verskillende golflengtes, waardeur fitoplanktonpigment-, sedimentverspreiding- en temperatuurverskille langs die kusgebiede bepaal kan word. Om die verband tussen oseaankleur en fitoplanktonpigmente langs die Kaapse Weskus vas testel, is ’n reeks optiese en biologiese metings sedert 1979 ter see uitgevoer. In hierdie artikel word ’n kort bespreking aangebied van die algoritme waarmee fitoplanktonpigment uit satellietdata bepaal kan word en dit word vergelyk met seedata gedurende Februarie 1979 ingesamel. Resultate dui daarop dat die pigmente met ’n akkuraatheid van ’n faktor 2 bepaal kan word, wat goed vergelyk met resultate van ander navorsers. Hierdie nuwe metode van pigmentbepaling op ’n globale skaal kan ’n belangrike rol speel by die bestudering van opwellingsprosesse en by die oordeelkundiger benutting van visbronne. | |
| Publisher | AOSIS | |
| Date | 1982-03-25 | |
| Identifier | 10.4102/satnt.v1i3.1157 | |
| Source | Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie; Vol 1, No 3 (1982); 156-161 Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie; Vol 1, No 3 (1982); 156-161 2222-4173 0254-3486 | |
| Language | eng | |
| Relation |
The following web links (URLs) may trigger a file download or direct you to an alternative webpage to gain access to a publication file format of the published article:
https://journals.satnt.aosis.co.za/index.php/satnt/article/view/1157/2360
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