
handle: 10261/309471
[ES] Las zonas frontales del océano Antártico investigadas durante las campañas BIOMASS-IV (Confluencia de Weddell-Escocia) ySUZIL-91 (Confluencias Subtropical y Antártica en el sector del Indico) presentaron un fuerte gradiente de silicato asociado a las confluencias. Su posición coincide bastante bien con la isopleta de {H4SiO4J=2 μM en el sector Índico y con la de 70μM en el sector Atlántico. El silicato disuelto es un buen trazador de las zonas frontales y de las perturbaciones que en ellas ocurren, incluso en aguas superficiales. Ello se debe a su buena correlación con la salinidad (r2=0, 90) en los cuerpos de agua antárticos presentes en las zonas de las dos campañas realizadas
[EN] Antartic frontal zones surveyed during BIOMASS-IV (Weddell-Scotia Confluence) and SUZIL-91 (Subtropicaland Antarctic Confluences in lndian sector) cruises showed a strong gradient of silicate. The situation of fronts is agree with 2 μM silicate isoline in lndian sector and 70μM in Atlantic sector. Dissolved silicate is a good tracer of cited frontal zones and its changes. lt is due to good silicate-salinity correlation (r2=0.90) in the Antarctic water masses present in the surveyed areas
8 pages, 5 figures.-- Cuarto Simposio Español de Estudios Antárticos, Puerto de la Cruz, 20-25 de octubre de 1991
Proyecto ANT90-l 231-E
Peer reviewed
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