Differences between 1999 and 2010 across the Falkland Plateau: fronts and water masses
11 pages, 11 figures, 1 table, data availability https://doi.org/10.17882/50171 Decadal differences in the Falkland Plateau are studied from the two full-depth hydrographic data collected during the ALBATROSS (April 1999) and MOC-Austral (February 2010) cruises. Differences in the upper 100 dbar are...
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European Geosciences Union
2017
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Online Access: | http://hdl.handle.net/10261/154220 https://doi.org/10.5194/os-13-577-2017 https://doi.org/10.13039/501100004837 https://doi.org/10.13039/501100000270 |
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ftcsic:oai:digital.csic.es:10261/154220 2024-02-11T09:57:11+01:00 Differences between 1999 and 2010 across the Falkland Plateau: fronts and water masses Pérez-Hernández, María Dolores Hernández Guerra, Alonso Comas-Rodríguez, Isis Benítez Barrios, Verónica Fraile-Nuez, Eugenio Pelegrí, Josep Lluís Naveira-Garabato, Alberto Ministerio de Ciencia e Innovación (España) Natural Environment Research Council (UK) 2017-07 http://hdl.handle.net/10261/154220 https://doi.org/10.5194/os-13-577-2017 https://doi.org/10.13039/501100004837 https://doi.org/10.13039/501100000270 unknown European Geosciences Union Publisher's version https://dx.doi.org/10.5194/os-13-577-2017 Sí doi:10.5194/os-13-577-2017 issn: 812-0784 e-issn: 1812-0792 Ocean Science 13: 577-587 (2017) http://hdl.handle.net/10261/154220 http://dx.doi.org/10.13039/501100004837 http://dx.doi.org/10.13039/501100000270 open artículo http://purl.org/coar/resource_type/c_6501 2017 ftcsic https://doi.org/10.5194/os-13-577-201710.13039/50110000483710.13039/501100000270 2024-01-16T10:25:13Z 11 pages, 11 figures, 1 table, data availability https://doi.org/10.17882/50171 Decadal differences in the Falkland Plateau are studied from the two full-depth hydrographic data collected during the ALBATROSS (April 1999) and MOC-Austral (February 2010) cruises. Differences in the upper 100 dbar are due to changes in the seasonal thermocline, as the ALBATROSS cruise took place in the austral fall and the MOC-Austral cruise in summer. The intermediate water masses seem to be very sensitive to the wind conditions existing in their formation area, showing cooling and freshening for the decade as a consequence of a higher Antarctic Intermediate Water (AAIW) contribution and of a decrease in the Subantarctic Mode Water (SAMW) stratum. The deeper layers do not exhibit any significant change in the water mass properties. The Subantarctic Front (SAF) in 1999 is observed at 52.2–54.8° W with a relative mass transport of 32.6 Sv. In contrast, the SAF gets wider in 2010, stretching from 51.1 to 57.2° W (the Falkland Islands), and weakening to 17.9 Sv. Changes in the SAF can be linked with the westerly winds and mainly affect the northward flow of Subantarctic Surface Water (SASW), SAMW and AAIW/Antarctic Surface Water (AASW). The Polar Front (PF) carries 24.9 Sv in 1999 (49.8–44.4° W), while in 2010 (49.9–49.2° W) it narrows and strengthens to 37.3 Sv. This study has been performed thanks to MOC2 (CTM2008-06438-C02-02/MAR) and Sevacan (CTM2013-48695), financed by the Spanish Government. The ALBATROSS cruise was funded by a Natural Environment Research Council grant (GR3/11654) Peer Reviewed Article in Journal/Newspaper Antarc* Antarctic Digital.CSIC (Spanish National Research Council) Antarctic Austral Falkland Plateau ENVELOPE(-50.000,-50.000,-51.000,-51.000) Ocean Science 13 4 577 587 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
description |
11 pages, 11 figures, 1 table, data availability https://doi.org/10.17882/50171 Decadal differences in the Falkland Plateau are studied from the two full-depth hydrographic data collected during the ALBATROSS (April 1999) and MOC-Austral (February 2010) cruises. Differences in the upper 100 dbar are due to changes in the seasonal thermocline, as the ALBATROSS cruise took place in the austral fall and the MOC-Austral cruise in summer. The intermediate water masses seem to be very sensitive to the wind conditions existing in their formation area, showing cooling and freshening for the decade as a consequence of a higher Antarctic Intermediate Water (AAIW) contribution and of a decrease in the Subantarctic Mode Water (SAMW) stratum. The deeper layers do not exhibit any significant change in the water mass properties. The Subantarctic Front (SAF) in 1999 is observed at 52.2–54.8° W with a relative mass transport of 32.6 Sv. In contrast, the SAF gets wider in 2010, stretching from 51.1 to 57.2° W (the Falkland Islands), and weakening to 17.9 Sv. Changes in the SAF can be linked with the westerly winds and mainly affect the northward flow of Subantarctic Surface Water (SASW), SAMW and AAIW/Antarctic Surface Water (AASW). The Polar Front (PF) carries 24.9 Sv in 1999 (49.8–44.4° W), while in 2010 (49.9–49.2° W) it narrows and strengthens to 37.3 Sv. This study has been performed thanks to MOC2 (CTM2008-06438-C02-02/MAR) and Sevacan (CTM2013-48695), financed by the Spanish Government. The ALBATROSS cruise was funded by a Natural Environment Research Council grant (GR3/11654) Peer Reviewed |
author2 |
Ministerio de Ciencia e Innovación (España) Natural Environment Research Council (UK) |
format |
Article in Journal/Newspaper |
author |
Pérez-Hernández, María Dolores Hernández Guerra, Alonso Comas-Rodríguez, Isis Benítez Barrios, Verónica Fraile-Nuez, Eugenio Pelegrí, Josep Lluís Naveira-Garabato, Alberto |
spellingShingle |
Pérez-Hernández, María Dolores Hernández Guerra, Alonso Comas-Rodríguez, Isis Benítez Barrios, Verónica Fraile-Nuez, Eugenio Pelegrí, Josep Lluís Naveira-Garabato, Alberto Differences between 1999 and 2010 across the Falkland Plateau: fronts and water masses |
author_facet |
Pérez-Hernández, María Dolores Hernández Guerra, Alonso Comas-Rodríguez, Isis Benítez Barrios, Verónica Fraile-Nuez, Eugenio Pelegrí, Josep Lluís Naveira-Garabato, Alberto |
author_sort |
Pérez-Hernández, María Dolores |
title |
Differences between 1999 and 2010 across the Falkland Plateau: fronts and water masses |
title_short |
Differences between 1999 and 2010 across the Falkland Plateau: fronts and water masses |
title_full |
Differences between 1999 and 2010 across the Falkland Plateau: fronts and water masses |
title_fullStr |
Differences between 1999 and 2010 across the Falkland Plateau: fronts and water masses |
title_full_unstemmed |
Differences between 1999 and 2010 across the Falkland Plateau: fronts and water masses |
title_sort |
differences between 1999 and 2010 across the falkland plateau: fronts and water masses |
publisher |
European Geosciences Union |
publishDate |
2017 |
url |
http://hdl.handle.net/10261/154220 https://doi.org/10.5194/os-13-577-2017 https://doi.org/10.13039/501100004837 https://doi.org/10.13039/501100000270 |
long_lat |
ENVELOPE(-50.000,-50.000,-51.000,-51.000) |
geographic |
Antarctic Austral Falkland Plateau |
geographic_facet |
Antarctic Austral Falkland Plateau |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
Publisher's version https://dx.doi.org/10.5194/os-13-577-2017 Sí doi:10.5194/os-13-577-2017 issn: 812-0784 e-issn: 1812-0792 Ocean Science 13: 577-587 (2017) http://hdl.handle.net/10261/154220 http://dx.doi.org/10.13039/501100004837 http://dx.doi.org/10.13039/501100000270 |
op_rights |
open |
op_doi |
https://doi.org/10.5194/os-13-577-201710.13039/50110000483710.13039/501100000270 |
container_title |
Ocean Science |
container_volume |
13 |
container_issue |
4 |
container_start_page |
577 |
op_container_end_page |
587 |
_version_ |
1790609414980370432 |