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Surface water carbon dioxide in the southwest Indian sector of the Southern Ocean: a highly variable CO2 source/sink region in summer by N. Metzl; C. Beauverger; C. Brunet; C. Goyet; A. Poisson is a Earth and Planetary Sciences article available to read on EtoBox.

What is Surface water carbon dioxide in the southwest Indian sector of the Southern Ocean: a highly variable CO2 source/sink region in summer about?

Surface water carbon dioxide in the southwest Indian sector of the Southern Ocean: a highly variable CO 2 source/sink region in summer. Mar. Chem., Measurements of partial pressure of carbon dioxide (pC0 2 ) , total dissolved inorganic carbon (TC0 2 ) , total alkalinity (TA) and chlorophyll a (ChI a) have been made in surface water in the southwestern Indian sector of the Southern Ocean (20-8S 0 E) in the austral summer (IND1VAT V cruise, January-February 1987). Between Antarctica and Africa, pC0 2 distribution was linked to the oceanic frontal zones and Chi a variations. The pe0 2 spatial structure was very close to that explored in summer 1967 in the same region but the pC0 2 differences between the ocean and the atmosphere were smaller in 1987 than 20 years ago. At all latitudes we found strongly contrasting surface pC0 2 characteristics between eastern (around 80 0E) and western (around 25°E) regions; CO 2 sources were mainly in the west and CO 2 sinks in the east. South of600S, the contrast could be due to biological activity. Between 60 0S and the Antarctic Polar Front, intensification of upwelling might be responsible for the higher pC0 2 values in the west.

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Author

N. Metzl; C. Beauverger; C. Brunet; C. Goyet; A. Poisson

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0304-4203)

Published

1991

Language

EN

Field

Earth and Planetary Sciences (Physical Sciences)