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Touratier, Franck; Goyet, C; Coatanoan, Christine; Andrie, C. |
With a limited number of properties (salinity, temperature, total dissolved inorganic carbon, total alkalinity, and oxygen) from a recent cruise in the tropical Atlantic Ocean, We use the simple and recent approach TrOCA (Tracer combining Oxygen, inorganic Carbon, and total Alkalinity) to estimate the distribution of anthropogenic CO2 along three latitudinal sections. In order to assess the quality of the anthropogenic CO2 distribution, results from the method are compared to the CFC-11 measurements. We discuss the large-scale distribution of the main water masses of the tropical Atlantic Ocean in the light of the anthropogenic CO2 and the CFC-11 distributions. Keeping in mind that the anthropogenic CO2 emission began similar to 60 years earlier than that... |
Tipo: Text |
Palavras-chave: Tropical belt; Atlantic Ocean; Water mass; Carbon cycle. |
Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-886.pdf |
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Sellschopp, J; Onken, R. |
Two lenses of cold water with core temperature 12.5 degrees C were observed in the central Ionian Sea between the thermocline and the salinity maximum due to Levantine Intermediate Water. The estimated salinity in the lenses is 37.8. The relevance of the observation is assured by the high number of expendable probes deployed. The lens diameters are estimated at 30 km. Analogy with a less spectacular feature contained in oceanographic measurements in the following year implies that the lenses rotate clockwise. The cold water lenses originate from the Adriatic Sea with a generation mechanism equivalent to meddy formation at the Iberian peninsula (eddy of Mediterranean water in the Atlantic Ocean). Year to year differences in cold lens generation are expected... |
Tipo: Text |
Palavras-chave: Masse d'eau; Lentille; Meddy; Ionienne; Adriatique; Water mass; Lens; Meddy; Ionian; Adriatic. |
Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/00324/43568/44049.pdf |
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Costa Brandao, Manoela; Garcia, Carlos A.e; Freire, Andrea S.. |
The influence of oceanographic fronts on the abundance and community composition of invertebrate larvae, mostly of benthic species, along nearly 2000 km of the southwestern Atlantic shelf (21–34°S) was investigated. Meroplankton was sampled through vertical hauls at 89 stations, distributed along 14 cross-shelf transects, during late spring 2010 and early summer 2011. Salinity and temperature were registered with a CTD/rosette system, which provided seawater for chlorophyll-a and nutrient concentrations estimations. Vertical profiles of temperature, salinity, chlorophyll-a and nutrients were used as proxies of the fronts. In addition, high-resolution thermosalinograph data were used to detect surface frontal features. Meroplankton abundance peaks were... |
Tipo: Text |
Palavras-chave: Frontal zones; Invertebrate larvae; Water mass; Large-scale variability; Southwestern Atlantic. |
Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00628/74056/75783.pdf |
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Hagen, E; Zulicke, C; Feistel, R. |
A meso-scale CTD survey was conducted off Cape Ghir (31 degrees N) from 29 September to 3 October 1992, with the inspection of mass-field structures in the 300 dbar layer as its main objective, and relatively large tongue of cold surface water as the subject of investigation. This filament of upwelled water extends about 200 km seaward from the coastal zone of Morocco. Our CTD survey included two zonal transects 213 km in length, sampled synchronously by R/Vs Hudson along 31 degrees 30' N and A. v.Humboldt along 30 degrees 30' N. A meridional section followed the shelf edge at 10 degrees 10' W, and five zigzag sections were carried out above the Cape Ghir Plateau (CGP). Data resulting from an extended transect, sampled ten days earlier between 9 degrees... |
Tipo: Text |
Palavras-chave: Coastal upwelling; Filament; Northwest Africa; Water mass; Eddy. |
Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/00096/20728/18365.pdf |
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