BIOLOGICAL INDICATIONS OF ACTIVE UPWELLING IN THE NORTHWESTERN INDIAN OCEAN IN 1964 AND 1979, AND A COMPARISON WITH PERU AND NORTHWEST AFRICA.

Sharon L Smith

Research output: Chapter in Book/Report/Conference proceedingChapter

49 Scopus citations

Abstract

When surface properties of the northwestern Indian Ocean observed during the southwest monsoon of 1964 are compared with those of 1979, the area of upwelling around Ras Hafun showed the clearest similarity in the two years. Major dissimilarities between 1964 and 1979 were observed in the vertical distribution of temperature and nitrate near 5 degree N, which suggested that upwelling there in August 1964 was less intense than in July 1979. The intensity of upwelling near 5 degree N probably reached a peak in July both years, implying a relatively stable annual cycle for the upwellings off Somalia. The relationship of primary productivity and chlorophyll a observed off Somalia is very similar to that observed off Peru, and standing stocks of net zooplankton are also similar, but both are quite different from northwestern Africa. Refs.

Original languageEnglish
Title of host publicationDeep-Sea Research, Part A: Oceanographic Research Papers
Pages951-967
Number of pages17
Volume31
Edition6 -8A Pt A
StatePublished - Dec 1 1983
Externally publishedYes
EventMar Sci of the North-West Indian Ocean - Alexandria, Egypt
Duration: Sep 3 1983Sep 6 1983

Other

OtherMar Sci of the North-West Indian Ocean
CityAlexandria, Egypt
Period9/3/839/6/83

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Smith, S. L. (1983). BIOLOGICAL INDICATIONS OF ACTIVE UPWELLING IN THE NORTHWESTERN INDIAN OCEAN IN 1964 AND 1979, AND A COMPARISON WITH PERU AND NORTHWEST AFRICA. In Deep-Sea Research, Part A: Oceanographic Research Papers (6 -8A Pt A ed., Vol. 31, pp. 951-967)