On the temporal variability of the Weddell Sea Deep Water masses
The Weddell Sea is one of the key regions of the Southern Ocean with respect to climate as most of the Antarctic Bottom Water (AABW) that occupies the world ocean deepest layers is likely to originate from this region. This study applies the Optimum Multiparameter water mass analysis to the Weddell...
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ftunivfurg:oai:repositorio.furg.br:1/1961 2023-11-12T04:04:45+01:00 On the temporal variability of the Weddell Sea Deep Water masses Kerr, Rodrigo Mata, Mauricio Magalhães Garcia, Carlos Alberto Eiras 2009 application/pdf http://repositorio.furg.br/handle/1/1961 https://doi.org/10.1017/S0954102009001990 eng eng KERR, Rodrigo; MATA, Mauricio Magalhães; GARCIA, Carlos Alberto Eiras. On the temporal variability of the Weddell Sea Deep Water masses. Antarctic Science, v.21, n.4, p. 383–400, 2009. Disponível em:<http://journals.cambridge.org/download.php?file=%2FANS%2FANS21_04%2FS0954102009001990a.pdf&code=e60ac8642decea7914e1b68b258da7cd>. Acesso em: 19 mar. 2012. http://repositorio.furg.br/handle/1/1961 doi:10.1017/S0954102009001990 restrict access Antartica OMP analysis Southern Annular Mode Southern Ocean article 2009 ftunivfurg https://doi.org/10.1017/S0954102009001990 2023-10-24T21:01:48Z The Weddell Sea is one of the key regions of the Southern Ocean with respect to climate as most of the Antarctic Bottom Water (AABW) that occupies the world ocean deepest layers is likely to originate from this region. This study applies the Optimum Multiparameter water mass analysis to the Weddell deep waters in order to investigate their distribution and variability. The dataset used is based on the WOCE repeat sections in the area (SR04 and A12) from 1984 to 1998. The mean water mass distribution is consistent with previous knowledge of the region, along with high interannual variability. Regarding the temporal variability, it seems that the years of maximum Weddell Sea Deep Water (WSDW) contribution correspond to the lowest levels of Weddell Sea Bottom Water (WSBW), and vice versa. In order to identify possible forcing mechanisms for such variability, the water mass temporal anomalies were compared with oceanic and atmospheric modes of variability in that region such as the Southern Annular Mode (SAM). An apparent correlation between the SAM index temporal gradients and WSBW anomalies indicate that the Weddell Sea export of dense waters to the world ocean may be linked to that index on several time scales. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science antartic* Southern Ocean Weddell Sea RI FURG (Repositório da Universidade Federal do Rio Grande) Antarctic Southern Ocean The Antarctic Weddell Weddell Sea Antarctic Science 21 04 383 |
institution |
Open Polar |
collection |
RI FURG (Repositório da Universidade Federal do Rio Grande) |
op_collection_id |
ftunivfurg |
language |
English |
topic |
Antartica OMP analysis Southern Annular Mode Southern Ocean |
spellingShingle |
Antartica OMP analysis Southern Annular Mode Southern Ocean Kerr, Rodrigo Mata, Mauricio Magalhães Garcia, Carlos Alberto Eiras On the temporal variability of the Weddell Sea Deep Water masses |
topic_facet |
Antartica OMP analysis Southern Annular Mode Southern Ocean |
description |
The Weddell Sea is one of the key regions of the Southern Ocean with respect to climate as most of the Antarctic Bottom Water (AABW) that occupies the world ocean deepest layers is likely to originate from this region. This study applies the Optimum Multiparameter water mass analysis to the Weddell deep waters in order to investigate their distribution and variability. The dataset used is based on the WOCE repeat sections in the area (SR04 and A12) from 1984 to 1998. The mean water mass distribution is consistent with previous knowledge of the region, along with high interannual variability. Regarding the temporal variability, it seems that the years of maximum Weddell Sea Deep Water (WSDW) contribution correspond to the lowest levels of Weddell Sea Bottom Water (WSBW), and vice versa. In order to identify possible forcing mechanisms for such variability, the water mass temporal anomalies were compared with oceanic and atmospheric modes of variability in that region such as the Southern Annular Mode (SAM). An apparent correlation between the SAM index temporal gradients and WSBW anomalies indicate that the Weddell Sea export of dense waters to the world ocean may be linked to that index on several time scales. |
format |
Article in Journal/Newspaper |
author |
Kerr, Rodrigo Mata, Mauricio Magalhães Garcia, Carlos Alberto Eiras |
author_facet |
Kerr, Rodrigo Mata, Mauricio Magalhães Garcia, Carlos Alberto Eiras |
author_sort |
Kerr, Rodrigo |
title |
On the temporal variability of the Weddell Sea Deep Water masses |
title_short |
On the temporal variability of the Weddell Sea Deep Water masses |
title_full |
On the temporal variability of the Weddell Sea Deep Water masses |
title_fullStr |
On the temporal variability of the Weddell Sea Deep Water masses |
title_full_unstemmed |
On the temporal variability of the Weddell Sea Deep Water masses |
title_sort |
on the temporal variability of the weddell sea deep water masses |
publishDate |
2009 |
url |
http://repositorio.furg.br/handle/1/1961 https://doi.org/10.1017/S0954102009001990 |
geographic |
Antarctic Southern Ocean The Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Southern Ocean The Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctic Science antartic* Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Science antartic* Southern Ocean Weddell Sea |
op_relation |
KERR, Rodrigo; MATA, Mauricio Magalhães; GARCIA, Carlos Alberto Eiras. On the temporal variability of the Weddell Sea Deep Water masses. Antarctic Science, v.21, n.4, p. 383–400, 2009. Disponível em:<http://journals.cambridge.org/download.php?file=%2FANS%2FANS21_04%2FS0954102009001990a.pdf&code=e60ac8642decea7914e1b68b258da7cd>. Acesso em: 19 mar. 2012. http://repositorio.furg.br/handle/1/1961 doi:10.1017/S0954102009001990 |
op_rights |
restrict access |
op_doi |
https://doi.org/10.1017/S0954102009001990 |
container_title |
Antarctic Science |
container_volume |
21 |
container_issue |
04 |
container_start_page |
383 |
_version_ |
1782341757438001152 |