Patterns of sea surface temperature variability on seasonal to sub-annual scales at and offshore the Río de la Plata estuary

Autores
Simionato, Claudia Gloria; Luz Clara Tejedor, Moira; Campetella, Claudia Marcela; Guerrero, Raul Alfredo; Moreira, Diego
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
SST variability on seasonal to sub-annual scales in the coastal region of South America between 30 and 39° S, largely influenced by the Rio de la Plata estuary’s plume, and its relation with wind variability is explored. Data are six years of daily ensembles of gridded satellite SST and sea surface winds with spatial resolutions of about 11 and 25 kilometers, respectively. Observations from oceanographic cruises are used to validate results. It is found that the seasonal cycle can be explained in terms of two modes. The first one, characterizing fall-early winter/spring-early summer, is related to the radiative cycle. The second one, corresponding to late summer and winter, displays warm/cold anomalies along the Uruguayan coast forced by the prevailing winds during those seasons. In the upper estuary and the northern part of the area of influence of the fresh water plume, variability in sub-annual scales is significant. A large portion of this variance is related to zonal wind anomalies that force warm/cold SSTs along that coast. Cold anomalies of up to -5°C occur under anomalously intense easterly winds, indicating upwelling. These events are very frequent and show large persistence, occurring up to one and a half months. They also display a marked seasonal cycle -being more frequent in late spring and summer-, large inter-annual variability and seem to be modulated by the continental runoff. When discharge is low, the fresh water plume retracts to the west, reducing the inner-shelf stratification and increasing the likelihood of a full upwelling to the surface. In winter, short time-scale SST variability is mostly due to variability in the atmospheric cold fronts crossing the region. Weaker or less frequent (stronger or more frequent) fronts produce a generalized warming (cooling) over the region. As the estuary heats (colds) faster than the shelf, a warm (cold) anomaly develops in the upper Río de la Plata. On inter-annual time scales, probably because ENSO activity was weak during the studied period, SST variability was not important.
Fil: Simionato, Claudia Gloria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmósfera. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmósfera; Argentina
Fil: Luz Clara Tejedor, Moira. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmósfera. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmósfera; Argentina
Fil: Campetella, Claudia Marcela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmósfera. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmósfera; Argentina
Fil: Guerrero, Raul Alfredo. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Moreira, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmósfera. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmósfera; Argentina
Materia
SEA SURFACE TEMPERATURA
RIO DE LA PLATA ESTUARY
COASTAL PROCESSES
UPWELLING
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/281058
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Patterns of sea surface temperature variability on seasonal to sub-annual scales at and offshore the Río de la Plata estuarySimionato, Claudia GloriaLuz Clara Tejedor, MoiraCampetella, Claudia MarcelaGuerrero, Raul AlfredoMoreira, DiegoSEA SURFACE TEMPERATURARIO DE LA PLATA ESTUARYCOASTAL PROCESSESUPWELLINGhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1SST variability on seasonal to sub-annual scales in the coastal region of South America between 30 and 39° S, largely influenced by the Rio de la Plata estuary’s plume, and its relation with wind variability is explored. Data are six years of daily ensembles of gridded satellite SST and sea surface winds with spatial resolutions of about 11 and 25 kilometers, respectively. Observations from oceanographic cruises are used to validate results. It is found that the seasonal cycle can be explained in terms of two modes. The first one, characterizing fall-early winter/spring-early summer, is related to the radiative cycle. The second one, corresponding to late summer and winter, displays warm/cold anomalies along the Uruguayan coast forced by the prevailing winds during those seasons. In the upper estuary and the northern part of the area of influence of the fresh water plume, variability in sub-annual scales is significant. A large portion of this variance is related to zonal wind anomalies that force warm/cold SSTs along that coast. Cold anomalies of up to -5°C occur under anomalously intense easterly winds, indicating upwelling. These events are very frequent and show large persistence, occurring up to one and a half months. They also display a marked seasonal cycle -being more frequent in late spring and summer-, large inter-annual variability and seem to be modulated by the continental runoff. When discharge is low, the fresh water plume retracts to the west, reducing the inner-shelf stratification and increasing the likelihood of a full upwelling to the surface. In winter, short time-scale SST variability is mostly due to variability in the atmospheric cold fronts crossing the region. Weaker or less frequent (stronger or more frequent) fronts produce a generalized warming (cooling) over the region. As the estuary heats (colds) faster than the shelf, a warm (cold) anomaly develops in the upper Río de la Plata. On inter-annual time scales, probably because ENSO activity was weak during the studied period, SST variability was not important.Fil: Simionato, Claudia Gloria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmósfera. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmósfera; ArgentinaFil: Luz Clara Tejedor, Moira. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmósfera. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmósfera; ArgentinaFil: Campetella, Claudia Marcela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmósfera. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmósfera; ArgentinaFil: Guerrero, Raul Alfredo. Instituto Nacional de Investigaciones y Desarrollo Pesquero; ArgentinaFil: Moreira, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmósfera. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmósfera; ArgentinaPergamon-Elsevier Science Ltd2010-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/281058Simionato, Claudia Gloria; Luz Clara Tejedor, Moira; Campetella, Claudia Marcela; Guerrero, Raul Alfredo; Moreira, Diego; Patterns of sea surface temperature variability on seasonal to sub-annual scales at and offshore the Río de la Plata estuary; Pergamon-Elsevier Science Ltd; Continental Shelf Research; 30; 19; 11-2010; 1983-19970278-4343CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0278434310003043info:eu-repo/semantics/altIdentifier/doi/10.1016/j.csr.2010.09.012info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-02-26T10:33:23Zoai:ri.conicet.gov.ar:11336/281058instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982026-02-26 10:33:24.193CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Patterns of sea surface temperature variability on seasonal to sub-annual scales at and offshore the Río de la Plata estuary
title Patterns of sea surface temperature variability on seasonal to sub-annual scales at and offshore the Río de la Plata estuary
spellingShingle Patterns of sea surface temperature variability on seasonal to sub-annual scales at and offshore the Río de la Plata estuary
Simionato, Claudia Gloria
SEA SURFACE TEMPERATURA
RIO DE LA PLATA ESTUARY
COASTAL PROCESSES
UPWELLING
title_short Patterns of sea surface temperature variability on seasonal to sub-annual scales at and offshore the Río de la Plata estuary
title_full Patterns of sea surface temperature variability on seasonal to sub-annual scales at and offshore the Río de la Plata estuary
title_fullStr Patterns of sea surface temperature variability on seasonal to sub-annual scales at and offshore the Río de la Plata estuary
title_full_unstemmed Patterns of sea surface temperature variability on seasonal to sub-annual scales at and offshore the Río de la Plata estuary
title_sort Patterns of sea surface temperature variability on seasonal to sub-annual scales at and offshore the Río de la Plata estuary
dc.creator.none.fl_str_mv Simionato, Claudia Gloria
Luz Clara Tejedor, Moira
Campetella, Claudia Marcela
Guerrero, Raul Alfredo
Moreira, Diego
author Simionato, Claudia Gloria
author_facet Simionato, Claudia Gloria
Luz Clara Tejedor, Moira
Campetella, Claudia Marcela
Guerrero, Raul Alfredo
Moreira, Diego
author_role author
author2 Luz Clara Tejedor, Moira
Campetella, Claudia Marcela
Guerrero, Raul Alfredo
Moreira, Diego
author2_role author
author
author
author
dc.subject.none.fl_str_mv SEA SURFACE TEMPERATURA
RIO DE LA PLATA ESTUARY
COASTAL PROCESSES
UPWELLING
topic SEA SURFACE TEMPERATURA
RIO DE LA PLATA ESTUARY
COASTAL PROCESSES
UPWELLING
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv SST variability on seasonal to sub-annual scales in the coastal region of South America between 30 and 39° S, largely influenced by the Rio de la Plata estuary’s plume, and its relation with wind variability is explored. Data are six years of daily ensembles of gridded satellite SST and sea surface winds with spatial resolutions of about 11 and 25 kilometers, respectively. Observations from oceanographic cruises are used to validate results. It is found that the seasonal cycle can be explained in terms of two modes. The first one, characterizing fall-early winter/spring-early summer, is related to the radiative cycle. The second one, corresponding to late summer and winter, displays warm/cold anomalies along the Uruguayan coast forced by the prevailing winds during those seasons. In the upper estuary and the northern part of the area of influence of the fresh water plume, variability in sub-annual scales is significant. A large portion of this variance is related to zonal wind anomalies that force warm/cold SSTs along that coast. Cold anomalies of up to -5°C occur under anomalously intense easterly winds, indicating upwelling. These events are very frequent and show large persistence, occurring up to one and a half months. They also display a marked seasonal cycle -being more frequent in late spring and summer-, large inter-annual variability and seem to be modulated by the continental runoff. When discharge is low, the fresh water plume retracts to the west, reducing the inner-shelf stratification and increasing the likelihood of a full upwelling to the surface. In winter, short time-scale SST variability is mostly due to variability in the atmospheric cold fronts crossing the region. Weaker or less frequent (stronger or more frequent) fronts produce a generalized warming (cooling) over the region. As the estuary heats (colds) faster than the shelf, a warm (cold) anomaly develops in the upper Río de la Plata. On inter-annual time scales, probably because ENSO activity was weak during the studied period, SST variability was not important.
Fil: Simionato, Claudia Gloria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmósfera. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmósfera; Argentina
Fil: Luz Clara Tejedor, Moira. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmósfera. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmósfera; Argentina
Fil: Campetella, Claudia Marcela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmósfera. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmósfera; Argentina
Fil: Guerrero, Raul Alfredo. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Moreira, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmósfera. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmósfera; Argentina
description SST variability on seasonal to sub-annual scales in the coastal region of South America between 30 and 39° S, largely influenced by the Rio de la Plata estuary’s plume, and its relation with wind variability is explored. Data are six years of daily ensembles of gridded satellite SST and sea surface winds with spatial resolutions of about 11 and 25 kilometers, respectively. Observations from oceanographic cruises are used to validate results. It is found that the seasonal cycle can be explained in terms of two modes. The first one, characterizing fall-early winter/spring-early summer, is related to the radiative cycle. The second one, corresponding to late summer and winter, displays warm/cold anomalies along the Uruguayan coast forced by the prevailing winds during those seasons. In the upper estuary and the northern part of the area of influence of the fresh water plume, variability in sub-annual scales is significant. A large portion of this variance is related to zonal wind anomalies that force warm/cold SSTs along that coast. Cold anomalies of up to -5°C occur under anomalously intense easterly winds, indicating upwelling. These events are very frequent and show large persistence, occurring up to one and a half months. They also display a marked seasonal cycle -being more frequent in late spring and summer-, large inter-annual variability and seem to be modulated by the continental runoff. When discharge is low, the fresh water plume retracts to the west, reducing the inner-shelf stratification and increasing the likelihood of a full upwelling to the surface. In winter, short time-scale SST variability is mostly due to variability in the atmospheric cold fronts crossing the region. Weaker or less frequent (stronger or more frequent) fronts produce a generalized warming (cooling) over the region. As the estuary heats (colds) faster than the shelf, a warm (cold) anomaly develops in the upper Río de la Plata. On inter-annual time scales, probably because ENSO activity was weak during the studied period, SST variability was not important.
publishDate 2010
dc.date.none.fl_str_mv 2010-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/281058
Simionato, Claudia Gloria; Luz Clara Tejedor, Moira; Campetella, Claudia Marcela; Guerrero, Raul Alfredo; Moreira, Diego; Patterns of sea surface temperature variability on seasonal to sub-annual scales at and offshore the Río de la Plata estuary; Pergamon-Elsevier Science Ltd; Continental Shelf Research; 30; 19; 11-2010; 1983-1997
0278-4343
CONICET Digital
CONICET
url http://hdl.handle.net/11336/281058
identifier_str_mv Simionato, Claudia Gloria; Luz Clara Tejedor, Moira; Campetella, Claudia Marcela; Guerrero, Raul Alfredo; Moreira, Diego; Patterns of sea surface temperature variability on seasonal to sub-annual scales at and offshore the Río de la Plata estuary; Pergamon-Elsevier Science Ltd; Continental Shelf Research; 30; 19; 11-2010; 1983-1997
0278-4343
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0278434310003043
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.csr.2010.09.012
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.665996

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