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Perez, Ff; Tokarczyk, R; Figueiras, Fg; Rios, Af. |
This study - carried out between the Elephant and the Orkney islands - showed that spatial variability in the marginal ice-edge zone (MIZ) was greater than that found in open sea. Salinity and silicate contents point to the existence of two fronts: the first - near Elephant Island - separates the Surface Antarctic Water coming from Drake Passage from the winter water originating in the Weddell Sea. This water is characterized by its high concentrations of nitrate (> 30 mu M) and silicates (> 80 mu M). The second front - near the South Orkney Islands undergoes the influence by a less saline water lens (< 34 %), poor in nutrients (N-NO3 < 24 mu M) and rich in chlorophyll (> 3.5 mg Chl a 1(-1)). Water masses circulation reveals the existence of... |
Tipo: Text |
Palavras-chave: MARGINAL ICE; WEDDELL SEA; WATER MASSES; NUTRIENTS; CHLOROPHYLL. |
Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/00098/20883/18497.pdf |