O mínimo de oxigênio na costa leste do Brasil entre 7-22ºS
Open Access
- 1 January 1978
- journal article
- Published by FapUNIFESP (SciELO) in Boletim do Instituto Oceanográfico
- Vol. 27 (2) , 79-94
- https://doi.org/10.1590/s0373-55241978000200004
Abstract
In the South Atlantic nearly the Brazilian coast, at low latitudes, the layer of minimum oxygen concentration shows distinct values between the Equatorial region (7ºS) and the region limited by latitudes of 18-22ºS. In the vicinity of the Equator the minimum concentration is remarkably clear (2,0 ml/l at 7ºS) and at 22ºS the minima values raise up to 4.0-4.5 ml/l. The minimum oxygen layer follows the isopynics surfaces (σt = 26.8-27.2) in depths of 300-400 m (7ºS) and 600-800 m (22ºS) . The oxygen concentration in this area results from a biochemical and physical processes, due to the presence of poor water Brazil Current southward and the rich one Intermediate Antartic water flowing northward.Keywords
This publication has 6 references indexed in Scilit:
- The oxygen minima in relation to ocean circulationPublished by Elsevier ,2003
- Contribuição ao estudo da circulação e do transporte de volume da corrente do Brasil entre o Cabo de São Tomé e a Baía de GuanabaraBoletim do Instituto Oceanográfico, 1976
- Variações em escala média da temperatura e da salinidade do mar na região entre a Baía de Guanabara e Cabo Frio (17/08 a 26/08/1971)Boletim do Instituto Oceanográfico, 1976
- Some chemical aspects of the marine environment off the Amazon and Pará rivers, BrazilBoletim do Instituto Oceanográfico, 1971
- The shelf and coastal waters off southern BrazilBoletim do Instituto Oceanográfico, 1961
- On the Explanation of the Oxygen Minima and Maxima in the OceansICES Journal of Marine Science, 1938