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| Le Paih, Nicolas; Hattermann, Tore; Boebel, Olaf; Kanzow, Torsten; Lüpkes, Christof; Rohardt, Gerd; Strass, Volker; Herbette, Steven. |
| The Weddell Sea is of global importance in the formation of dense bottom waters associated with sea‐ice formation and ocean‐ice sheet interaction occurring on the shelf areas. In this context, the Weddell Sea boundary current system (BCS) presents a major conduit for transporting relatively warm water to the Weddell Sea ice shelves and for exporting {some modified form of Wedell Sea deep and bottom waters into the open ocean. This study investigates the downstream evolution of the structure and the seasonality of the BCS along the Weddell Sea continental slope, combining ocean data collected for the past two decades at three study locations. The interannual‐mean geostrophic flow, which follows planetary potential vorticity contours, shifts from being... |
| Tipo: Text |
Palavras-chave: Southern Ocean; Weddell Sea; Antarctic slope current; Surface stress; Flow strength; Teleconnection. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00652/76398/77436.pdf |
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| Vanhove, S.; Arntz, W.E.; Vincx, M.. |
| Nothing is known about the structure of free-living marine nematode communities in the high Antarctic. Our attempt at surveying this numerically most abundant meiobenthic taxon along the continental shelf and slope (200 to 2000 m) furnished information on generic, trophic and age composition in 2 regions in the Weddell Sea (Kapp Norvegia, 6 stations, 71-72°S, 12-13°W; Halley Bay, 11 stations, 74-75°S, 25-29°W). A total of 7300 nematode identifications to generic level were analyzed by means of a variety of statistical techniques. The spatial structure indicated the existence of 4 major nematode genus associations colonizing the upper slope, downslope, Halley shelf and a mixed habitat consisting of shelf break and Kapp Norvegia shelf. Dominated by genera... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Abundance Continental margins Dominant species Meiobenthos Sediment analysis Acantholaimus Daptonema Dichromadora Leptolaimus Microlaimus Molgolaimus Monhystera Nematoda [Nematodes] Sabatieria PSW; Weddell Sea. |
| Ano: 1999 |
URL: http://www.vliz.be/imisdocs/publications/273307.pdf |
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| Hoppema, M.; Dehairs, F.; Navez, J.; Monnin, C.; Jeandel, C.; Fahrbach, E.; De Baar, H. J. W.. |
| The Southern Ocean data base of dissolved barium (Bad) has been augmented with two densely sampled sections across the Weddell Gyre sampled by the icebreaker FS Polarstern during February and March 2005. Bad was found to be relatively high in the surface layer as compared to the adjacent waters north (Antarctic Circumpolar Current) and east (Antarctic Zone of the Indian sector). Compared to the inflowing water into the Weddell Gyre and also to the surface water, the deep water is characterized by a significant Ba-d enrichment. Depletion of Bad in the surface layer is associated with well-known biogeochemical processes, but we speculate that also sea-ice formation leads to the extraction of Ba from solution via barite (BaSO4) precipitation. The particulate... |
| Tipo: Text |
Palavras-chave: Barium Silicate Geochemical cycle Southern Ocean; Weddell Sea. |
| Ano: 2010 |
URL: https://archimer.ifremer.fr/doc/00460/57178/59134.pdf |
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