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A South African Ocean Colour Experiment

  • F. P. Anderson
  • L. V. Shannon
  • S. A. Mostert
  • N. M. Walters
  • O. G. Malan
Part of the Marine Science book series (MR, volume 13)

Abstract

During the austral summer of 1978/79 a series of ocean colour experiments was undertaken in the southern Benguela Current region off South Africa. Scientists from four research institutes utilizing five research ships and two aircraft took part in the exercise which was coordinated with CUEX-1, a programme of intensive physical and chemical measurements in the upwelling system. The main objectives of the ocean colour experiment were as follows:
  1. (a)

    to relate CZCS radiance measurements from the Nimbus-7 satellite to chlorophyll distribution and phytoplankton densities and possibly also pelagic fish distribution in an upwelling system.

     
  2. (b)

    to relate satellite radiance measurements to organic pollution emanating from fish processing factories in the St. Helena Bay area.

     
  3. (c)

    to relate satellite radiance measurements to the dynamics of fronts associated with the upwelling system.

     
Despite the fact that the satellite colour scanner was not switched on for most of the overpasses for which sea-truth measurements were available, significant results were obtained, some of which are presented below.

Keywords

Chlorophyll Concentration Austral Summer Atmospheric Correction Secchi Disc Depth Phytoplankton Density 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Gordon, H.R., Clark, D.K., Mueller, J.L. and Hovis, W.A., 1980, “Phytoplankton Pigments Derived from Nimbus-7 CZCS: Initial Comparisons with Surface Truth Measurements,” Science, 210, 63–66.CrossRefGoogle Scholar
  2. Kim, H.H., McClain, C.R., Blaine, L.R., Hart, W.D., Atkinson, L.P. and Yoder, J.A., 1979, “Ocean Chlorophyll Studies from a U-2 Aircraft Platform,” NASA Techn. Memo 80574.Google Scholar
  3. Shannon, L.V., Nelson, G. and Jury, M.R., 1980, “Hydrological and Meteorological Aspects of Upwelling in the Southern Benguela Current,” IDOE Int. Symp. on Coastal Upwelling, Los Angeles.Google Scholar

Copyright information

© Plenum Press, New York 1981

Authors and Affiliations

  • F. P. Anderson
    • 1
  • L. V. Shannon
    • 2
  • S. A. Mostert
    • 2
  • N. M. Walters
    • 3
  • O. G. Malan
    • 3
  1. 1.National Research Institute for OceanologyCSIRStellenboschSouth Africa
  2. 2.Sea Fisheries InstituteSea PointSouth Africa
  3. 3.National Physical Research LaboratoryCSIRPretoriaSouth Africa

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