The influence of the Brazil and Malvinas Currents on the Southwestern Atlantic Shelf circulation

Mostrar todas las versiones(3)

The oceanic circulation over the southwestern Atlantic shelf is influenced by large tidal amplitudes, substantial freshwater discharges, high wind speeds and - most importantly - by its proximity to two of the largest western boundary currents of the world ocean: the Brazil and Malvinas currents. Th...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Matano, R.P., Palma, E.D., Piola, A.R.
Formato:	JOUR
Materias:	amplitude boundary layer deep sea eddy freshwater input global ocean numerical model shelf break thermohaline structure tidal current western boundary current wind velocity Atlantic Ocean Brazil Current Malvinas Current Patagonian Shelf South Brazil Bight
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_18120784_v6_n4_p983_Matano
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_18120784_v6_n4_p983_Matano
record_format	dspace
spelling	todo:paper_18120784_v6_n4_p983_Matano2023-10-03T16:33:01Z The influence of the Brazil and Malvinas Currents on the Southwestern Atlantic Shelf circulation Matano, R.P. Palma, E.D. Piola, A.R. amplitude boundary layer deep sea eddy freshwater input global ocean numerical model shelf break thermohaline structure tidal current western boundary current wind velocity Atlantic Ocean Brazil Current Malvinas Current Patagonian Shelf South Brazil Bight The oceanic circulation over the southwestern Atlantic shelf is influenced by large tidal amplitudes, substantial freshwater discharges, high wind speeds and - most importantly - by its proximity to two of the largest western boundary currents of the world ocean: the Brazil and Malvinas currents. This review article aims to discriminate the dynamical processes controlling the interaction between this extensive shelf region and the deep-ocean. The discussion is focused on two broad regions: the South Brazil Bight to the north, and Patagonia to the south. The exchanges between the Brazil Current and the South Brazil Bight are characterized by the intermittent development of eddies and meanders of the Brazil Current at the shelfbreak. However, it is argued that this is not the only - nor the most important - influence of the Brazil Current on the shelf. Numerical simulations show that the thermohaline structure of the South Brazil Bight can be entirely ascribed to steady state, bottom boundary layer interactions between the shelf and the Brazil Current. The Malvinas Current does not show the development of eddies and meanders, but its influence on the Patagonian shelf is not less important. Models and observations indicate that the Malvinas Current not only controls the shelfbreak dynamics and cross-shelf exchanges but also influences the circulation in the shelf's interior. © Author(s) 2010. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_18120784_v6_n4_p983_Matano
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	amplitude boundary layer deep sea eddy freshwater input global ocean numerical model shelf break thermohaline structure tidal current western boundary current wind velocity Atlantic Ocean Brazil Current Malvinas Current Patagonian Shelf South Brazil Bight
spellingShingle	amplitude boundary layer deep sea eddy freshwater input global ocean numerical model shelf break thermohaline structure tidal current western boundary current wind velocity Atlantic Ocean Brazil Current Malvinas Current Patagonian Shelf South Brazil Bight Matano, R.P. Palma, E.D. Piola, A.R. The influence of the Brazil and Malvinas Currents on the Southwestern Atlantic Shelf circulation
topic_facet	amplitude boundary layer deep sea eddy freshwater input global ocean numerical model shelf break thermohaline structure tidal current western boundary current wind velocity Atlantic Ocean Brazil Current Malvinas Current Patagonian Shelf South Brazil Bight
description	The oceanic circulation over the southwestern Atlantic shelf is influenced by large tidal amplitudes, substantial freshwater discharges, high wind speeds and - most importantly - by its proximity to two of the largest western boundary currents of the world ocean: the Brazil and Malvinas currents. This review article aims to discriminate the dynamical processes controlling the interaction between this extensive shelf region and the deep-ocean. The discussion is focused on two broad regions: the South Brazil Bight to the north, and Patagonia to the south. The exchanges between the Brazil Current and the South Brazil Bight are characterized by the intermittent development of eddies and meanders of the Brazil Current at the shelfbreak. However, it is argued that this is not the only - nor the most important - influence of the Brazil Current on the shelf. Numerical simulations show that the thermohaline structure of the South Brazil Bight can be entirely ascribed to steady state, bottom boundary layer interactions between the shelf and the Brazil Current. The Malvinas Current does not show the development of eddies and meanders, but its influence on the Patagonian shelf is not less important. Models and observations indicate that the Malvinas Current not only controls the shelfbreak dynamics and cross-shelf exchanges but also influences the circulation in the shelf's interior. © Author(s) 2010.
format	JOUR
author	Matano, R.P. Palma, E.D. Piola, A.R.
author_facet	Matano, R.P. Palma, E.D. Piola, A.R.
author_sort	Matano, R.P.
title	The influence of the Brazil and Malvinas Currents on the Southwestern Atlantic Shelf circulation
title_short	The influence of the Brazil and Malvinas Currents on the Southwestern Atlantic Shelf circulation
title_full	The influence of the Brazil and Malvinas Currents on the Southwestern Atlantic Shelf circulation
title_fullStr	The influence of the Brazil and Malvinas Currents on the Southwestern Atlantic Shelf circulation
title_full_unstemmed	The influence of the Brazil and Malvinas Currents on the Southwestern Atlantic Shelf circulation
title_sort	influence of the brazil and malvinas currents on the southwestern atlantic shelf circulation
url	http://hdl.handle.net/20.500.12110/paper_18120784_v6_n4_p983_Matano
work_keys_str_mv	AT matanorp theinfluenceofthebrazilandmalvinascurrentsonthesouthwesternatlanticshelfcirculation AT palmaed theinfluenceofthebrazilandmalvinascurrentsonthesouthwesternatlanticshelfcirculation AT piolaar theinfluenceofthebrazilandmalvinascurrentsonthesouthwesternatlanticshelfcirculation AT matanorp influenceofthebrazilandmalvinascurrentsonthesouthwesternatlanticshelfcirculation AT palmaed influenceofthebrazilandmalvinascurrentsonthesouthwesternatlanticshelfcirculation AT piolaar influenceofthebrazilandmalvinascurrentsonthesouthwesternatlanticshelfcirculation
_version_	1807318418291949568

The influence of the Brazil and Malvinas Currents on the Southwestern Atlantic Shelf circulation

Ejemplares similares