Note on the shelf break upwelling off the southeast coast of Brazil (lat. 26º30'S)

Authors

  • Afrânio Rubens de Mesquita Universidade de São Paulo; Instituto Oceanográfico
  • João Batista de Assis Leite Universidade de São Paulo; Instituto Oceanográfico
  • Reyner Rizzo Universidade de São Paulo; Instituto Oceanográfico

DOI:

https://doi.org/10.1590/S1679-87591983000200010

Keywords:

Water temperature, Salinity, Current measurement, Coastal upwelling, Oceanic eddies, Frontal zones, Oceanic fronts, Advection, Southeast coast-Brazil, R/V "Prof. W. Besnard", Paranaguá^i1^, Continental shelf break

Abstract

A western margin frontal zone is described, from measurements of temperature, salinity and currents, in a section taken with R/V "Prof. W. Besnard" in December 1980, crossing the shelf break border at latitude 26º30'S. The analyses of the sections showed consistently the occurrence of an ascension of the T and S isolines over the shelf break. Simultaneous current measurements showed a surface eddy structure with clockwise circulation and anti-clockwise circulation having a common stem over the break characterizing a shelf break upwelling.

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Published

1983-01-01

Issue

Vol. 32 No. 2 (1983)

Section

Notas

How to Cite

Note on the shelf break upwelling off the southeast coast of Brazil (lat. 26º30’S) . (1983). Boletim Do Instituto Oceanografico, 32(2), 193-198. https://doi.org/10.1590/S1679-87591983000200010