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Article Dans Une Revue Marine Ecology Progress Series Année : 1999

Cross-slope variations of dissolved organic carbon in the Gulf of Cadiz, NE Atlantic Ocean (February 1998)

Résumé

Our observations at a traverse of Cadiz in February 1998 indicated dissolved organic carbon (DOC)con- centrations ranging from 61 to 89 uM C within the Spanish Shelf Water, from 48 to 64 uM C within the North Atlantic Surface Water, and from 49 to 55 uM C within the North Atlantic Central Water. Moreover, according to temperature and salin- ity data, the shallow core of the Mediterranean outflow was also identified deeper than 350 m depth with DOC concentrations between 52 and 58 uM C. The data suggest that DOC distribution at the traverse of the Gulf of Cadiz was controlled by outputs of degraded particles transported within along- slope descending shelf waters and also by features of the cir- culation in the Gulf of Cadiz. An estimate of organic carbon transport suggests that ca 1.34 to 2.68 X 102m01 C S-' were transported within the shallow core of Mediterranean outflow. This amount of DOC was 2 orders of magnitude less than that calculated within the Mediterranean outflow in the Strait of Gibraltar for the summer and autumn seasons. These processes might partly regulate the biogeochemistry of the shallow core of the Mediterranean outflow along the Iberian coast.
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Dates et versions

hal-02063121 , version 1 (10-03-2019)

Identifiants

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Ev Dafner, Richard Sempere, N González, F. Gomez, M. Goutx. Cross-slope variations of dissolved organic carbon in the Gulf of Cadiz, NE Atlantic Ocean (February 1998). Marine Ecology Progress Series, 1999, 189, pp.301-306. ⟨10.3354/meps189301⟩. ⟨hal-02063121⟩
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