Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/5269
Share/Export:
logo share SHARE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Title

On the distribution of silicic acid as a frontal zone tracer in the Indian sector of the Southern Ocean

AuthorsPrego, R. CSIC ORCID ; Barciela, Mª del Carmen; Park, Y. H.; Morvan, J.; Poncin, J.; Tréguer, P.
KeywordsSilicate
Tracer
Frontal zone
Silicate-salinity diagram
Crozet Basin
Southern Ocean
Issue Date1999
PublisherCSIC - Instituto de Ciencias del Mar (ICM)
CitationScientia Marina 63(2): 121-127 (1999)
AbstractThe subantarctic frontal zone surveyed during the April-May 1991 SUZIL cruise in the Crozet-Kerguelen-Amsterdam area shows a strong horizontal (north to south) gradient of dissolved silicate, increasing with depth, from 5 to 10 µmolSi kg-1 at 100 m, and 10 to 70 µmolSi kg-1 at 600 m. The northern limit of this frontal zone, which is formed by the confluence of the Subtropical and Subantarctic Fronts, is delimited at the surface by the 2 µmolSi kg-1 silicate isoline. Silicate-salinity diagrams also allow different water regimes to be positioned relative to the frontal zone. This sloping interface is between two water bodies, one to the north with more saline subtropical waters of less concentrated silicate than the southern one, corresponding to subantarctic waters which are less saline and richer in silicate. It is concluded that dissolved silicate can be used as a useful tracer of frontal zone water masses in the Indian sector of the Southern Ocean, providing a sound complement to other hydrographic data.
DescriptionPublicación online disponible en: http://www.icm.csic.es/scimar/index.php
URIhttp://hdl.handle.net/10261/5269
ISSN0214-8358
E-ISSN1886-8134
Appears in Collections:(IIM) Artículos

Files in This Item:
File Description SizeFormat
tracer.pdf438,82 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work

Page view(s)

313
checked on May 22, 2022

Download(s)

194
checked on May 22, 2022

Google ScholarTM

Check


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.