The Bransfield current system
We use hydrographic data collected during two interdisciplinary cruises, CIEMAR and BREDDIES, to describe the mesoscale variability observed in the Central Basin of the Bransfield Strait (Antarctica). The main mesoscale feature is the Bransfield Front and the related Bransfield Current, which flows...
Published in: | Deep Sea Research Part I: Oceanographic Research Papers |
---|---|
Main Authors: | , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , , , , , |
Language: | English |
Published: |
2011
|
Subjects: | |
Online Access: | http://hdl.handle.net/10553/43842 https://doi.org/10.1016/j.dsr.2011.01.011 |
id |
ftunivlaspalmas:oai:https://accedacris.ulpgc.es:10553/43842 |
---|---|
record_format |
openpolar |
spelling |
ftunivlaspalmas:oai:https://accedacris.ulpgc.es:10553/43842 2023-05-15T13:44:42+02:00 The Bransfield current system Sangrà, Pablo Gordo Rojas, Carmen Hernández-Arencibia, Mónica Marrero Díaz, Ángeles Rodríguez-Santana, Ángel Stegner, Alexander Martínez Marrero, Antonio Pelegrí, Josep L. Pichon, Thierry Marrero-Diaz, Angeles Rodriguez-Santana, Angel Martinez-Marrero, Antonio Pelegri, Josep Sangra, Pablo Stegner, Alexandre 55938118400 6508127008 36971242800 56031621700 55954140200 6601993878 24390812600 7003869003 56743133600 763696 6017677 7386813 1846069 1821092 1592008 4990325 358123 5031782 2011 http://hdl.handle.net/10553/43842 https://doi.org/10.1016/j.dsr.2011.01.011 eng eng Deep-Sea Research Part I: Oceanographic Research Papers 0967-0637 http://hdl.handle.net/10553/43842 doi:10.1016/j.dsr.2011.01.011 WOS:000289391000006 2-s2.0-79952897557 000289391000006 402 4 390 58 WOS:000289391000006 H-2175-2015 H-8596-2015 Q-6714-2017 L-5815-2014 No ID No ID Deep-Sea Research Part I-Oceanographic Research Papers [ISSN 0967-0637], v. 58 (4), p. 390-402 22 Física 2510 Oceanografía Bransfield strait Bransfield current Circumpolar deep water Anticyclonic eddies Gravity current 2011 ftunivlaspalmas https://doi.org/10.1016/j.dsr.2011.01.011 2019-09-08T16:41:37Z We use hydrographic data collected during two interdisciplinary cruises, CIEMAR and BREDDIES, to describe the mesoscale variability observed in the Central Basin of the Bransfield Strait (Antarctica). The main mesoscale feature is the Bransfield Front and the related Bransfield Current, which flows northeastward along the South Shetland Island Slope. A laboratory model suggests that this current behaves as a gravity current driven by the local rotation rate and the density differences between the Transitional Zonal Water with Bellingshausen influence (TBW) and the Transitional Zonal Water with Weddell Sea influence (TWW). Below the Bransfield Front we observe a narrow (10 km wide) tongue of Circumpolar Deep Water all along the South Shetland Islands Slope. At the surface, the convergence of TBW and TWW leads to a shallow baroclinic front close to the Antarctic Peninsula (hereafter Peninsula Front). Between the Bransfield Front and the Peninsula Front we observe a system of TBW anticyclonic eddies, with diameters about 20 km that can reach 300 m deep. This eddy system could be originated by instabilities of the Bransfield Current. The Bransfield Current, the anticyclonic eddy system, the Peninsula Front and the tongue of Circumpolar Deep Water, are the dynamically connected components of the Bransfield Current System. Other/Unknown Material Antarc* Antarctic Antarctic Peninsula Antarctica Bransfield Strait South Shetland Islands Weddell Sea Universidad de Las Palmas de Gran Canaria: Acceda Antarctic Antarctic Peninsula Bransfield Strait Central Basin ENVELOPE(178.000,178.000,-72.300,-72.300) South Shetland Islands The Antarctic Weddell Weddell Sea Deep Sea Research Part I: Oceanographic Research Papers 58 4 390 402 |
institution |
Open Polar |
collection |
Universidad de Las Palmas de Gran Canaria: Acceda |
op_collection_id |
ftunivlaspalmas |
language |
English |
topic |
22 Física 2510 Oceanografía Bransfield strait Bransfield current Circumpolar deep water Anticyclonic eddies Gravity current |
spellingShingle |
22 Física 2510 Oceanografía Bransfield strait Bransfield current Circumpolar deep water Anticyclonic eddies Gravity current Sangrà, Pablo Gordo Rojas, Carmen Hernández-Arencibia, Mónica Marrero Díaz, Ángeles Rodríguez-Santana, Ángel Stegner, Alexander Martínez Marrero, Antonio Pelegrí, Josep L. Pichon, Thierry The Bransfield current system |
topic_facet |
22 Física 2510 Oceanografía Bransfield strait Bransfield current Circumpolar deep water Anticyclonic eddies Gravity current |
description |
We use hydrographic data collected during two interdisciplinary cruises, CIEMAR and BREDDIES, to describe the mesoscale variability observed in the Central Basin of the Bransfield Strait (Antarctica). The main mesoscale feature is the Bransfield Front and the related Bransfield Current, which flows northeastward along the South Shetland Island Slope. A laboratory model suggests that this current behaves as a gravity current driven by the local rotation rate and the density differences between the Transitional Zonal Water with Bellingshausen influence (TBW) and the Transitional Zonal Water with Weddell Sea influence (TWW). Below the Bransfield Front we observe a narrow (10 km wide) tongue of Circumpolar Deep Water all along the South Shetland Islands Slope. At the surface, the convergence of TBW and TWW leads to a shallow baroclinic front close to the Antarctic Peninsula (hereafter Peninsula Front). Between the Bransfield Front and the Peninsula Front we observe a system of TBW anticyclonic eddies, with diameters about 20 km that can reach 300 m deep. This eddy system could be originated by instabilities of the Bransfield Current. The Bransfield Current, the anticyclonic eddy system, the Peninsula Front and the tongue of Circumpolar Deep Water, are the dynamically connected components of the Bransfield Current System. |
author2 |
Marrero-Diaz, Angeles Rodriguez-Santana, Angel Martinez-Marrero, Antonio Pelegri, Josep Sangra, Pablo Stegner, Alexandre 55938118400 6508127008 36971242800 56031621700 55954140200 6601993878 24390812600 7003869003 56743133600 763696 6017677 7386813 1846069 1821092 1592008 4990325 358123 5031782 |
author |
Sangrà, Pablo Gordo Rojas, Carmen Hernández-Arencibia, Mónica Marrero Díaz, Ángeles Rodríguez-Santana, Ángel Stegner, Alexander Martínez Marrero, Antonio Pelegrí, Josep L. Pichon, Thierry |
author_facet |
Sangrà, Pablo Gordo Rojas, Carmen Hernández-Arencibia, Mónica Marrero Díaz, Ángeles Rodríguez-Santana, Ángel Stegner, Alexander Martínez Marrero, Antonio Pelegrí, Josep L. Pichon, Thierry |
author_sort |
Sangrà, Pablo |
title |
The Bransfield current system |
title_short |
The Bransfield current system |
title_full |
The Bransfield current system |
title_fullStr |
The Bransfield current system |
title_full_unstemmed |
The Bransfield current system |
title_sort |
bransfield current system |
publishDate |
2011 |
url |
http://hdl.handle.net/10553/43842 https://doi.org/10.1016/j.dsr.2011.01.011 |
long_lat |
ENVELOPE(178.000,178.000,-72.300,-72.300) |
geographic |
Antarctic Antarctic Peninsula Bransfield Strait Central Basin South Shetland Islands The Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Antarctic Peninsula Bransfield Strait Central Basin South Shetland Islands The Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Bransfield Strait South Shetland Islands Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Bransfield Strait South Shetland Islands Weddell Sea |
op_source |
Deep-Sea Research Part I-Oceanographic Research Papers [ISSN 0967-0637], v. 58 (4), p. 390-402 |
op_relation |
Deep-Sea Research Part I: Oceanographic Research Papers 0967-0637 http://hdl.handle.net/10553/43842 doi:10.1016/j.dsr.2011.01.011 WOS:000289391000006 2-s2.0-79952897557 000289391000006 402 4 390 58 WOS:000289391000006 H-2175-2015 H-8596-2015 Q-6714-2017 L-5815-2014 No ID No ID |
op_doi |
https://doi.org/10.1016/j.dsr.2011.01.011 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
container_volume |
58 |
container_issue |
4 |
container_start_page |
390 |
op_container_end_page |
402 |
_version_ |
1766205040477863936 |