Direct Measurements of the Malvinas Current Velocity Structure
- Autores
- Frey, D. I.; Piola, Alberto Ricardo; Krechik, V. A.; Fofanov, D. V.; Morozov, E. G.; Silvestrova, K. P.; Tarakanov, R.Yu.; Gladyshev, S. V.
- Año de publicación
- 2021
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Direct velocity measurements of the Malvinas Current (MC) were carried out on multiple occupations of five transects across the flow using a Shipborne Acoustic Current Profiler (SADCP) on the R/V Akademik Sergey Vavilov and Akademik Mstislav Keldysh. These data are used to determine local features of the three-dimensional velocity field of the current. The occupations covered the northern branch of the Antarctic Circumpolar Current (ACC) and the southern part of the MC. Five transects across the flow were located at 350–550 km from each other from the Drake Passage to the western Argentine Basin at 46°S. The new observations reveal that the current is organized in two branches, namely, an inshore branch extending to a depth of 200–300 m and a main offshore branch, which flows approximately over the 1,400 m isobath. This two-branch structure is observed on each of the cross-flow transects. The observed velocities of the inshore branch exceed 40 cm/s on each studied crossing of the current. The MC is a cold western boundary current that follows the Subantarctic Front. This flow originates as an offshoot of the northern branch of the ACC and continues over the Falkland/Malvinas Plateau and along the western slope of the Argentine Basin. Volume transports of the upper 700 m of the MC calculated for each crossing range between 1.4 and 4.4 Sv for the inshore branch and between 21.2 and 25.5 Sv for the offshore (main) branch.
Fil: Frey, D. I.. Russian Academy of Sciences; Rusia
Fil: Piola, Alberto Ricardo. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Krechik, V. A.. Russian Academy of Sciences; Rusia
Fil: Fofanov, D. V.. Russian Academy of Sciences; Rusia
Fil: Morozov, E. G.. Russian Academy of Sciences; Rusia
Fil: Silvestrova, K. P.. Russian Academy of Sciences; Rusia
Fil: Tarakanov, R.Yu.. Russian Academy of Sciences; Rusia
Fil: Gladyshev, S. V.. Russian Academy of Sciences; Rusia - Materia
-
CURRENTS
MALVINAS CURRENT
OCEAN CIRCULATION
SADCP MEASUREMENTS
VELOCITY STRUCTURE - 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:11336/165092
Ver los metadatos del registro completo
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Direct Measurements of the Malvinas Current Velocity StructureFrey, D. I.Piola, Alberto RicardoKrechik, V. A.Fofanov, D. V.Morozov, E. G.Silvestrova, K. P.Tarakanov, R.Yu.Gladyshev, S. V.CURRENTSMALVINAS CURRENTOCEAN CIRCULATIONSADCP MEASUREMENTSVELOCITY STRUCTUREhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Direct velocity measurements of the Malvinas Current (MC) were carried out on multiple occupations of five transects across the flow using a Shipborne Acoustic Current Profiler (SADCP) on the R/V Akademik Sergey Vavilov and Akademik Mstislav Keldysh. These data are used to determine local features of the three-dimensional velocity field of the current. The occupations covered the northern branch of the Antarctic Circumpolar Current (ACC) and the southern part of the MC. Five transects across the flow were located at 350–550 km from each other from the Drake Passage to the western Argentine Basin at 46°S. The new observations reveal that the current is organized in two branches, namely, an inshore branch extending to a depth of 200–300 m and a main offshore branch, which flows approximately over the 1,400 m isobath. This two-branch structure is observed on each of the cross-flow transects. The observed velocities of the inshore branch exceed 40 cm/s on each studied crossing of the current. The MC is a cold western boundary current that follows the Subantarctic Front. This flow originates as an offshoot of the northern branch of the ACC and continues over the Falkland/Malvinas Plateau and along the western slope of the Argentine Basin. Volume transports of the upper 700 m of the MC calculated for each crossing range between 1.4 and 4.4 Sv for the inshore branch and between 21.2 and 25.5 Sv for the offshore (main) branch.Fil: Frey, D. I.. Russian Academy of Sciences; RusiaFil: Piola, Alberto Ricardo. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Krechik, V. A.. Russian Academy of Sciences; RusiaFil: Fofanov, D. V.. Russian Academy of Sciences; RusiaFil: Morozov, E. G.. Russian Academy of Sciences; RusiaFil: Silvestrova, K. P.. Russian Academy of Sciences; RusiaFil: Tarakanov, R.Yu.. Russian Academy of Sciences; RusiaFil: Gladyshev, S. V.. Russian Academy of Sciences; RusiaBlackwell Publishing2021-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/165092Frey, D. I.; Piola, Alberto Ricardo; Krechik, V. A.; Fofanov, D. V.; Morozov, E. G.; et al.; Direct Measurements of the Malvinas Current Velocity Structure; Blackwell Publishing; Journal of Geophysical Research: Oceans; 126; 4; 3-2021; 1-362169-92752169-9291CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1029/2020JC016727info:eu-repo/semantics/altIdentifier/doi/10.1029/2020JC016727info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:38:31Zoai:ri.conicet.gov.ar:11336/165092instacron: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:34982025-09-29 09:38:31.365CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Direct Measurements of the Malvinas Current Velocity Structure |
title |
Direct Measurements of the Malvinas Current Velocity Structure |
spellingShingle |
Direct Measurements of the Malvinas Current Velocity Structure Frey, D. I. CURRENTS MALVINAS CURRENT OCEAN CIRCULATION SADCP MEASUREMENTS VELOCITY STRUCTURE |
title_short |
Direct Measurements of the Malvinas Current Velocity Structure |
title_full |
Direct Measurements of the Malvinas Current Velocity Structure |
title_fullStr |
Direct Measurements of the Malvinas Current Velocity Structure |
title_full_unstemmed |
Direct Measurements of the Malvinas Current Velocity Structure |
title_sort |
Direct Measurements of the Malvinas Current Velocity Structure |
dc.creator.none.fl_str_mv |
Frey, D. I. Piola, Alberto Ricardo Krechik, V. A. Fofanov, D. V. Morozov, E. G. Silvestrova, K. P. Tarakanov, R.Yu. Gladyshev, S. V. |
author |
Frey, D. I. |
author_facet |
Frey, D. I. Piola, Alberto Ricardo Krechik, V. A. Fofanov, D. V. Morozov, E. G. Silvestrova, K. P. Tarakanov, R.Yu. Gladyshev, S. V. |
author_role |
author |
author2 |
Piola, Alberto Ricardo Krechik, V. A. Fofanov, D. V. Morozov, E. G. Silvestrova, K. P. Tarakanov, R.Yu. Gladyshev, S. V. |
author2_role |
author author author author author author author |
dc.subject.none.fl_str_mv |
CURRENTS MALVINAS CURRENT OCEAN CIRCULATION SADCP MEASUREMENTS VELOCITY STRUCTURE |
topic |
CURRENTS MALVINAS CURRENT OCEAN CIRCULATION SADCP MEASUREMENTS VELOCITY STRUCTURE |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Direct velocity measurements of the Malvinas Current (MC) were carried out on multiple occupations of five transects across the flow using a Shipborne Acoustic Current Profiler (SADCP) on the R/V Akademik Sergey Vavilov and Akademik Mstislav Keldysh. These data are used to determine local features of the three-dimensional velocity field of the current. The occupations covered the northern branch of the Antarctic Circumpolar Current (ACC) and the southern part of the MC. Five transects across the flow were located at 350–550 km from each other from the Drake Passage to the western Argentine Basin at 46°S. The new observations reveal that the current is organized in two branches, namely, an inshore branch extending to a depth of 200–300 m and a main offshore branch, which flows approximately over the 1,400 m isobath. This two-branch structure is observed on each of the cross-flow transects. The observed velocities of the inshore branch exceed 40 cm/s on each studied crossing of the current. The MC is a cold western boundary current that follows the Subantarctic Front. This flow originates as an offshoot of the northern branch of the ACC and continues over the Falkland/Malvinas Plateau and along the western slope of the Argentine Basin. Volume transports of the upper 700 m of the MC calculated for each crossing range between 1.4 and 4.4 Sv for the inshore branch and between 21.2 and 25.5 Sv for the offshore (main) branch. Fil: Frey, D. I.. Russian Academy of Sciences; Rusia Fil: Piola, Alberto Ricardo. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Krechik, V. A.. Russian Academy of Sciences; Rusia Fil: Fofanov, D. V.. Russian Academy of Sciences; Rusia Fil: Morozov, E. G.. Russian Academy of Sciences; Rusia Fil: Silvestrova, K. P.. Russian Academy of Sciences; Rusia Fil: Tarakanov, R.Yu.. Russian Academy of Sciences; Rusia Fil: Gladyshev, S. V.. Russian Academy of Sciences; Rusia |
description |
Direct velocity measurements of the Malvinas Current (MC) were carried out on multiple occupations of five transects across the flow using a Shipborne Acoustic Current Profiler (SADCP) on the R/V Akademik Sergey Vavilov and Akademik Mstislav Keldysh. These data are used to determine local features of the three-dimensional velocity field of the current. The occupations covered the northern branch of the Antarctic Circumpolar Current (ACC) and the southern part of the MC. Five transects across the flow were located at 350–550 km from each other from the Drake Passage to the western Argentine Basin at 46°S. The new observations reveal that the current is organized in two branches, namely, an inshore branch extending to a depth of 200–300 m and a main offshore branch, which flows approximately over the 1,400 m isobath. This two-branch structure is observed on each of the cross-flow transects. The observed velocities of the inshore branch exceed 40 cm/s on each studied crossing of the current. The MC is a cold western boundary current that follows the Subantarctic Front. This flow originates as an offshoot of the northern branch of the ACC and continues over the Falkland/Malvinas Plateau and along the western slope of the Argentine Basin. Volume transports of the upper 700 m of the MC calculated for each crossing range between 1.4 and 4.4 Sv for the inshore branch and between 21.2 and 25.5 Sv for the offshore (main) branch. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-03 |
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/11336/165092 Frey, D. I.; Piola, Alberto Ricardo; Krechik, V. A.; Fofanov, D. V.; Morozov, E. G.; et al.; Direct Measurements of the Malvinas Current Velocity Structure; Blackwell Publishing; Journal of Geophysical Research: Oceans; 126; 4; 3-2021; 1-36 2169-9275 2169-9291 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/165092 |
identifier_str_mv |
Frey, D. I.; Piola, Alberto Ricardo; Krechik, V. A.; Fofanov, D. V.; Morozov, E. G.; et al.; Direct Measurements of the Malvinas Current Velocity Structure; Blackwell Publishing; Journal of Geophysical Research: Oceans; 126; 4; 3-2021; 1-36 2169-9275 2169-9291 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1029/2020JC016727 info:eu-repo/semantics/altIdentifier/doi/10.1029/2020JC016727 |
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 |
dc.publisher.none.fl_str_mv |
Blackwell Publishing |
publisher.none.fl_str_mv |
Blackwell Publishing |
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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1844613217378107392 |
score |
13.070432 |