Seasonal variability of the intermediate water masses in the Gulf of Cadiz: implications of the Antarctic and Subartic seesaw model
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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ftcsic:oai:digital.csic.es:10261/319090 2024-02-11T09:58:46+01:00 Seasonal variability of the intermediate water masses in the Gulf of Cadiz: implications of the Antarctic and Subartic seesaw model Roque, David Parras-Berrocal, Iván Bruno, Miguel Sánchez-Leal, Ricardo Félix Hernández Molina, Francisco Javier 2019 http://hdl.handle.net/10508/15391 http://hdl.handle.net/10261/319090 https://os.copernicus.org/articles/15/1381/2019/os-15-1381-2019.pdf https://doi.org/10.5194/os-2019-8 en eng Copernicus GmbH Sede Central IEO 1812-0784 https://os.copernicus.org/articles/15/1381/2019/os-15-1381-2019.pdf http://hdl.handle.net/10508/15391 http://hdl.handle.net/10261/319090 doi:10.5194/os-2019-8 25385 open Intermediate Water Mass circulation Medio Marino y Protección Ambiental Sede Central IEO Seasonal variability Antarctic Intermediate Water Subarctic Intermediate Water Mediterranean Outflow Water Gulf of Cádiz Atlantic meridional overturning circulation research article 2019 ftcsic https://doi.org/10.5194/os-2019-8 2024-01-16T11:45:24Z 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 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 Outflow Water (MOW), 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 by a novel model based on the concatenation of several winddriven 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. Sí Article in Journal/Newspaper Antarc* Antarctic North Atlantic Subarctic Digital.CSIC (Spanish National Research Council) Antarctic The Antarctic |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Intermediate Water Mass circulation Medio Marino y Protección Ambiental Sede Central IEO Seasonal variability Antarctic Intermediate Water Subarctic Intermediate Water Mediterranean Outflow Water Gulf of Cádiz Atlantic meridional overturning circulation |
spellingShingle |
Intermediate Water Mass circulation Medio Marino y Protección Ambiental Sede Central IEO Seasonal variability Antarctic Intermediate Water Subarctic Intermediate Water Mediterranean Outflow Water Gulf of Cádiz Atlantic meridional overturning circulation Roque, David Parras-Berrocal, Iván Bruno, Miguel Sánchez-Leal, Ricardo Félix Hernández Molina, Francisco Javier Seasonal variability of the intermediate water masses in the Gulf of Cadiz: implications of the Antarctic and Subartic seesaw model |
topic_facet |
Intermediate Water Mass circulation Medio Marino y Protección Ambiental Sede Central IEO Seasonal variability Antarctic Intermediate Water Subarctic Intermediate Water Mediterranean Outflow Water Gulf of Cádiz Atlantic meridional overturning circulation |
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 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 Outflow Water (MOW), 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 by a novel model based on the concatenation of several winddriven 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. Sí |
format |
Article in Journal/Newspaper |
author |
Roque, David Parras-Berrocal, Iván Bruno, Miguel Sánchez-Leal, Ricardo Félix Hernández Molina, Francisco Javier |
author_facet |
Roque, David Parras-Berrocal, Iván Bruno, Miguel Sánchez-Leal, Ricardo Félix Hernández Molina, Francisco Javier |
author_sort |
Roque, David |
title |
Seasonal variability of the intermediate water masses in the Gulf of Cadiz: implications of the Antarctic and Subartic seesaw model |
title_short |
Seasonal variability of the intermediate water masses in the Gulf of Cadiz: implications of the Antarctic and Subartic seesaw model |
title_full |
Seasonal variability of the intermediate water masses in the Gulf of Cadiz: implications of the Antarctic and Subartic seesaw model |
title_fullStr |
Seasonal variability of the intermediate water masses in the Gulf of Cadiz: implications of the Antarctic and Subartic seesaw model |
title_full_unstemmed |
Seasonal variability of the intermediate water masses in the Gulf of Cadiz: implications of the Antarctic and Subartic seesaw model |
title_sort |
seasonal variability of the intermediate water masses in the gulf of cadiz: implications of the antarctic and subartic seesaw model |
publisher |
Copernicus GmbH |
publishDate |
2019 |
url |
http://hdl.handle.net/10508/15391 http://hdl.handle.net/10261/319090 https://os.copernicus.org/articles/15/1381/2019/os-15-1381-2019.pdf https://doi.org/10.5194/os-2019-8 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic North Atlantic Subarctic |
genre_facet |
Antarc* Antarctic North Atlantic Subarctic |
op_relation |
Sede Central IEO 1812-0784 https://os.copernicus.org/articles/15/1381/2019/os-15-1381-2019.pdf http://hdl.handle.net/10508/15391 http://hdl.handle.net/10261/319090 doi:10.5194/os-2019-8 25385 |
op_rights |
open |
op_doi |
https://doi.org/10.5194/os-2019-8 |
_version_ |
1790594513819926528 |