On the variability of tidal fronts on a macrotidal continental shelf, Northern Patagonia, Argentina
- Autores
- Pisoni, Juan Pablo; Rivas, Andres Lujan; Piola, Alberto Ricardo
- Año de publicación
- 2015
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Tidal fronts are associated with the transition between homogeneous and vertically stratified water and characterized by the simultaneous availability of light and nutrients that enhance the growth of marine productivity. We study the variability in the position of two tidal fronts located in Patagonia Argentina: the San Matías and Valdés fronts. The rate of tidal dissipation in these regions is among the highest of the world ocean. The study is based on the analysis of over 1200 satellite derived sea surface temperature images. The results indicate that the mean monthly position of both fronts is strongly linked to the characteristics of the bottom topography. In response to increasing surface heat flux the fronts displace toward shallower areas. Similarly, a slight displacement towards deeper waters is observed when the heat flux decreases. High frequency variability is revealed by the standard deviation around monthly averages. At the mouth of San Matías gulf, the front location variability in the spring-neap cycle is around 10 km, while east of Valdés Peninsula the fortnightly cycle is masked by high frequency fluctuations (~30 km) governed by meanders and meso-scale filaments. A simple conceptual model is proposed that suggests that the mean frontal position is determined by the bottom topography while its seasonal variability is driven by the surface heat flux, and the front intensity is modulated by the spring-neap transition.
Fil: Pisoni, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Rivas, Andres Lujan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia; Argentina
Fil: Piola, Alberto Ricardo. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina - Materia
-
Tidal Front
Tidal Mixing
Spring-Neap Cycle
Patagonian Shelf - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/40719
Ver los metadatos del registro completo
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On the variability of tidal fronts on a macrotidal continental shelf, Northern Patagonia, ArgentinaPisoni, Juan PabloRivas, Andres LujanPiola, Alberto RicardoTidal FrontTidal MixingSpring-Neap CyclePatagonian Shelfhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Tidal fronts are associated with the transition between homogeneous and vertically stratified water and characterized by the simultaneous availability of light and nutrients that enhance the growth of marine productivity. We study the variability in the position of two tidal fronts located in Patagonia Argentina: the San Matías and Valdés fronts. The rate of tidal dissipation in these regions is among the highest of the world ocean. The study is based on the analysis of over 1200 satellite derived sea surface temperature images. The results indicate that the mean monthly position of both fronts is strongly linked to the characteristics of the bottom topography. In response to increasing surface heat flux the fronts displace toward shallower areas. Similarly, a slight displacement towards deeper waters is observed when the heat flux decreases. High frequency variability is revealed by the standard deviation around monthly averages. At the mouth of San Matías gulf, the front location variability in the spring-neap cycle is around 10 km, while east of Valdés Peninsula the fortnightly cycle is masked by high frequency fluctuations (~30 km) governed by meanders and meso-scale filaments. A simple conceptual model is proposed that suggests that the mean frontal position is determined by the bottom topography while its seasonal variability is driven by the surface heat flux, and the front intensity is modulated by the spring-neap transition.Fil: Pisoni, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: Rivas, Andres Lujan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia; ArgentinaFil: Piola, Alberto Ricardo. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaElsevier2015-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/40719Pisoni, Juan Pablo; Rivas, Andres Lujan; Piola, Alberto Ricardo; On the variability of tidal fronts on a macrotidal continental shelf, Northern Patagonia, Argentina; Elsevier; Deep Sea Research Part II: Topical Studies in Oceanography; 119; 7-2015; 61-680967-0645CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0967064514000332info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr2.2014.01.019info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:56:56Zoai:ri.conicet.gov.ar:11336/40719instacron: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:34982025-09-03 09:56:56.994CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
On the variability of tidal fronts on a macrotidal continental shelf, Northern Patagonia, Argentina |
title |
On the variability of tidal fronts on a macrotidal continental shelf, Northern Patagonia, Argentina |
spellingShingle |
On the variability of tidal fronts on a macrotidal continental shelf, Northern Patagonia, Argentina Pisoni, Juan Pablo Tidal Front Tidal Mixing Spring-Neap Cycle Patagonian Shelf |
title_short |
On the variability of tidal fronts on a macrotidal continental shelf, Northern Patagonia, Argentina |
title_full |
On the variability of tidal fronts on a macrotidal continental shelf, Northern Patagonia, Argentina |
title_fullStr |
On the variability of tidal fronts on a macrotidal continental shelf, Northern Patagonia, Argentina |
title_full_unstemmed |
On the variability of tidal fronts on a macrotidal continental shelf, Northern Patagonia, Argentina |
title_sort |
On the variability of tidal fronts on a macrotidal continental shelf, Northern Patagonia, Argentina |
dc.creator.none.fl_str_mv |
Pisoni, Juan Pablo Rivas, Andres Lujan Piola, Alberto Ricardo |
author |
Pisoni, Juan Pablo |
author_facet |
Pisoni, Juan Pablo Rivas, Andres Lujan Piola, Alberto Ricardo |
author_role |
author |
author2 |
Rivas, Andres Lujan Piola, Alberto Ricardo |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Tidal Front Tidal Mixing Spring-Neap Cycle Patagonian Shelf |
topic |
Tidal Front Tidal Mixing Spring-Neap Cycle Patagonian Shelf |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Tidal fronts are associated with the transition between homogeneous and vertically stratified water and characterized by the simultaneous availability of light and nutrients that enhance the growth of marine productivity. We study the variability in the position of two tidal fronts located in Patagonia Argentina: the San Matías and Valdés fronts. The rate of tidal dissipation in these regions is among the highest of the world ocean. The study is based on the analysis of over 1200 satellite derived sea surface temperature images. The results indicate that the mean monthly position of both fronts is strongly linked to the characteristics of the bottom topography. In response to increasing surface heat flux the fronts displace toward shallower areas. Similarly, a slight displacement towards deeper waters is observed when the heat flux decreases. High frequency variability is revealed by the standard deviation around monthly averages. At the mouth of San Matías gulf, the front location variability in the spring-neap cycle is around 10 km, while east of Valdés Peninsula the fortnightly cycle is masked by high frequency fluctuations (~30 km) governed by meanders and meso-scale filaments. A simple conceptual model is proposed that suggests that the mean frontal position is determined by the bottom topography while its seasonal variability is driven by the surface heat flux, and the front intensity is modulated by the spring-neap transition. Fil: Pisoni, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina Fil: Rivas, Andres Lujan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia; Argentina Fil: Piola, Alberto Ricardo. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
description |
Tidal fronts are associated with the transition between homogeneous and vertically stratified water and characterized by the simultaneous availability of light and nutrients that enhance the growth of marine productivity. We study the variability in the position of two tidal fronts located in Patagonia Argentina: the San Matías and Valdés fronts. The rate of tidal dissipation in these regions is among the highest of the world ocean. The study is based on the analysis of over 1200 satellite derived sea surface temperature images. The results indicate that the mean monthly position of both fronts is strongly linked to the characteristics of the bottom topography. In response to increasing surface heat flux the fronts displace toward shallower areas. Similarly, a slight displacement towards deeper waters is observed when the heat flux decreases. High frequency variability is revealed by the standard deviation around monthly averages. At the mouth of San Matías gulf, the front location variability in the spring-neap cycle is around 10 km, while east of Valdés Peninsula the fortnightly cycle is masked by high frequency fluctuations (~30 km) governed by meanders and meso-scale filaments. A simple conceptual model is proposed that suggests that the mean frontal position is determined by the bottom topography while its seasonal variability is driven by the surface heat flux, and the front intensity is modulated by the spring-neap transition. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-07 |
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/11336/40719 Pisoni, Juan Pablo; Rivas, Andres Lujan; Piola, Alberto Ricardo; On the variability of tidal fronts on a macrotidal continental shelf, Northern Patagonia, Argentina; Elsevier; Deep Sea Research Part II: Topical Studies in Oceanography; 119; 7-2015; 61-68 0967-0645 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/40719 |
identifier_str_mv |
Pisoni, Juan Pablo; Rivas, Andres Lujan; Piola, Alberto Ricardo; On the variability of tidal fronts on a macrotidal continental shelf, Northern Patagonia, Argentina; Elsevier; Deep Sea Research Part II: Topical Studies in Oceanography; 119; 7-2015; 61-68 0967-0645 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/S0967064514000332 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr2.2014.01.019 |
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 application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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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1842269430192537600 |
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13.13397 |