Seasonal variability of intermediate water masses in the Gulf of Cádiz: Implications of the Antarctic and subarctic seesaw
Global circulation of intermediate water masses has been extensively studied; however, its regional and local circulation along continental margins and variability and implications on sea floor morphologies are still not well known. In this study the intermediate water mass variability in the Gulf o...
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European Geosciences Union
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Online Access: | http://hdl.handle.net/10261/209754 https://doi.org/10.5194/os-15-1381-2019 https://doi.org/10.13039/501100002911 |
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ftcsic:oai:digital.csic.es:10261/209754 2024-02-11T09:56:42+01:00 Seasonal variability of intermediate water masses in the Gulf of Cádiz: Implications of the Antarctic and subarctic seesaw Roque, David Parras-Berrocal, Ivan Bruno, Miguel Sánchez Leal, Ricardo Hernández-Molina, Francisco Javier Universidad Complutense de Madrid 2019-10-22 http://hdl.handle.net/10261/209754 https://doi.org/10.5194/os-15-1381-2019 https://doi.org/10.13039/501100002911 unknown European Geosciences Union Publisher's version http://doi.org/10.5194/os-15-1381-2019 Sí doi:10.5194/os-15-1381-2019 e-issn: 1812-0792 issn: 1812-0784 Ocean Science 15(5): 1381-1397 (2019) http://hdl.handle.net/10261/209754 http://dx.doi.org/10.13039/501100002911 open artículo http://purl.org/coar/resource_type/c_6501 2019 ftcsic https://doi.org/10.5194/os-15-1381-201910.13039/501100002911 2024-01-16T10:53:03Z Global circulation of intermediate water masses has been extensively studied; however, its regional and local circulation along continental margins and variability and implications on sea floor morphologies are still not well known. In this study the intermediate water mass variability in the Gulf of Cádiz (GoC) and adjacent areas has been analysed and its implications discussed. Remarkable seasonal variations of the Antarctic Intermediate Water (AAIW) and the Subarctic Intermediate Water (SAIW) are determined. During autumn a greater presence of the AAIW seems to be related to a reduction in the presence of SAIW and Eastern North Atlantic Central Water (ENACW). This interaction also affects the Mediterranean Water (MW), which is pushed by the AAIW toward the upper continental slope. In the rest of the seasons, the SAIW is the predominant water mass reducing the presence of the AAIW. This seasonal variability for the predominance of these intermediate water masses is explained in terms of the concatenation of several wind-driven processes acting during the different seasons. Our finding is important for a better understanding of regional intermediate water mass variability with implications in the Atlantic Meridional Overturning Circulation (AMOC), but further research is needed in order to decode their changes during the geological past and their role, especially related to the AAIW, in controlling both the morphology and the sedimentation along the continental slopes. Miguel Bruno was supported by the Salvador Madariaga mobility programme (grant PRX18/00441) Article in Journal/Newspaper Antarc* Antarctic North Atlantic Subarctic Digital.CSIC (Spanish National Research Council) Antarctic Madariaga ENVELOPE(-61.272,-61.272,-64.048,-64.048) The Antarctic Ocean Science 15 5 1381 1397 |
institution |
Open Polar |
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Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
description |
Global circulation of intermediate water masses has been extensively studied; however, its regional and local circulation along continental margins and variability and implications on sea floor morphologies are still not well known. In this study the intermediate water mass variability in the Gulf of Cádiz (GoC) and adjacent areas has been analysed and its implications discussed. Remarkable seasonal variations of the Antarctic Intermediate Water (AAIW) and the Subarctic Intermediate Water (SAIW) are determined. During autumn a greater presence of the AAIW seems to be related to a reduction in the presence of SAIW and Eastern North Atlantic Central Water (ENACW). This interaction also affects the Mediterranean Water (MW), which is pushed by the AAIW toward the upper continental slope. In the rest of the seasons, the SAIW is the predominant water mass reducing the presence of the AAIW. This seasonal variability for the predominance of these intermediate water masses is explained in terms of the concatenation of several wind-driven processes acting during the different seasons. Our finding is important for a better understanding of regional intermediate water mass variability with implications in the Atlantic Meridional Overturning Circulation (AMOC), but further research is needed in order to decode their changes during the geological past and their role, especially related to the AAIW, in controlling both the morphology and the sedimentation along the continental slopes. Miguel Bruno was supported by the Salvador Madariaga mobility programme (grant PRX18/00441) |
author2 |
Universidad Complutense de Madrid |
format |
Article in Journal/Newspaper |
author |
Roque, David Parras-Berrocal, Ivan Bruno, Miguel Sánchez Leal, Ricardo Hernández-Molina, Francisco Javier |
spellingShingle |
Roque, David Parras-Berrocal, Ivan Bruno, Miguel Sánchez Leal, Ricardo Hernández-Molina, Francisco Javier Seasonal variability of intermediate water masses in the Gulf of Cádiz: Implications of the Antarctic and subarctic seesaw |
author_facet |
Roque, David Parras-Berrocal, Ivan Bruno, Miguel Sánchez Leal, Ricardo Hernández-Molina, Francisco Javier |
author_sort |
Roque, David |
title |
Seasonal variability of intermediate water masses in the Gulf of Cádiz: Implications of the Antarctic and subarctic seesaw |
title_short |
Seasonal variability of intermediate water masses in the Gulf of Cádiz: Implications of the Antarctic and subarctic seesaw |
title_full |
Seasonal variability of intermediate water masses in the Gulf of Cádiz: Implications of the Antarctic and subarctic seesaw |
title_fullStr |
Seasonal variability of intermediate water masses in the Gulf of Cádiz: Implications of the Antarctic and subarctic seesaw |
title_full_unstemmed |
Seasonal variability of intermediate water masses in the Gulf of Cádiz: Implications of the Antarctic and subarctic seesaw |
title_sort |
seasonal variability of intermediate water masses in the gulf of cádiz: implications of the antarctic and subarctic seesaw |
publisher |
European Geosciences Union |
publishDate |
2019 |
url |
http://hdl.handle.net/10261/209754 https://doi.org/10.5194/os-15-1381-2019 https://doi.org/10.13039/501100002911 |
long_lat |
ENVELOPE(-61.272,-61.272,-64.048,-64.048) |
geographic |
Antarctic Madariaga The Antarctic |
geographic_facet |
Antarctic Madariaga The Antarctic |
genre |
Antarc* Antarctic North Atlantic Subarctic |
genre_facet |
Antarc* Antarctic North Atlantic Subarctic |
op_relation |
Publisher's version http://doi.org/10.5194/os-15-1381-2019 Sí doi:10.5194/os-15-1381-2019 e-issn: 1812-0792 issn: 1812-0784 Ocean Science 15(5): 1381-1397 (2019) http://hdl.handle.net/10261/209754 http://dx.doi.org/10.13039/501100002911 |
op_rights |
open |
op_doi |
https://doi.org/10.5194/os-15-1381-201910.13039/501100002911 |
container_title |
Ocean Science |
container_volume |
15 |
container_issue |
5 |
container_start_page |
1381 |
op_container_end_page |
1397 |
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1790605126542557184 |