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dc.contributor.author
Campos, Paula C.
dc.contributor.author
Moller Jr., Osmar O.
dc.contributor.author
Piola, Alberto Ricardo
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dc.contributor.author
Palma, Elbio Daniel
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dc.date.available
2017-01-16T18:39:40Z
dc.date.issued
2013-02
dc.identifier.citation
Campos, Paula C.; Moller Jr., Osmar O.; Piola, Alberto Ricardo; Palma, Elbio Daniel; Seasonal variability and coastal upwelling near Cape Santa Marta (Brazil); American Geophysical Union; Journal Of Geophysical Research; 118; 3; 2-2013; 1420-1433
dc.identifier.issn
0148-0227
dc.identifier.uri
http://hdl.handle.net/11336/11393
dc.description.abstract
The Santa Marta Grande Cape (CSM) area, a relatively steep and narrow continental shelf off southeast Brazil, is under the influence of the Brazil Current and intense seasonal variations of the wind field that affect the composition of water masses and their circulation. Hydrographic data, satellite-derived wind stress, and numerical simulations are used to characterize the seasonal and shorter period variability of the oceanographic conditions off CSM, in the area between 27S and 30S. The study is focused on the upwelling episodes and the dynamical mechanisms associated with these events. Field data and numerical results indicate significant seasonal changes in the oceanographic structure, the water mass composition, and the dynamical balance. During fall and winter, when southwesterly winds prevail and the frequency of meteorological frontal systems increases, the region is characterized by waters of continental origin, the Plata Plume Water (PPW). During spring and summer, deeper waters reach the surface layer due to the action of northeasterly winds. Coastal upwelling events are revealed by surface temperature minima observed south of CSM. Synoptic data show that these events occur in pulses associated with changes in the wind direction. Analysis of the numerical results shows that this particular location of the upwelling band results from the synergy between shelf-break upwelling and the regional shelf circulation induced by the northeasterly winds, both of which are modulated by changes in the coastline orientation and shelf width.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Geophysical Union
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Coastal Upwelling
dc.subject
Brazil Current
dc.subject
Numerical Ocean Modeling
dc.subject
Cape Santa Marta
dc.subject.classification
Oceanografía, Hidrología, Recursos Hídricos
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Seasonal variability and coastal upwelling near Cape Santa Marta (Brazil)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-12-01T19:40:58Z
dc.journal.volume
118
dc.journal.number
3
dc.journal.pagination
1420-1433
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Washington
dc.description.fil
Fil: Campos, Paula C.. Universidade Federal do Rio Grande do Sul; Brasil
dc.description.fil
Fil: Moller Jr., Osmar O.. Universidade Federal do Rio Grande do Sul; Brasil
dc.description.fil
Fil: Piola, Alberto Ricardo. Universidad de Buenos Aires; Argentina. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografia Naval; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Palma, Elbio Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Argentino de Oceanografía (i); Argentina. Universidad Nacional del Sur; Argentina
dc.journal.title
Journal Of Geophysical Research
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/jgrc.20131/abstract
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/jgrc.20131
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