On the export of dense water from the Weddell and Ross Seas
We describe the seasonal and interannual variability of volume transports in Weddell and Ross Seas using the 1/12◦20-yr simulation of the OCCAM global ocean general circulation model. The average simulated full-depth cumulative volume transports were 28.5±2.9 Sv (1 Sv ≡ 106 m3s−15) and 13.4±5.2 Sv,...
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ftunivfurg:oai:repositorio.furg.br:1/1960 2023-11-12T04:04:45+01:00 On the export of dense water from the Weddell and Ross Seas Kerr, Rodrigo Heywood, Karen Mata, Mauricio Magalhães Garcia, Carlos Alberto Eiras 2011 application/pdf http://repositorio.furg.br/handle/1/1960 https://doi.org/10.5194/osd-8-1657-2011 eng eng KERR, Rodrigo et al. On the export of dense water from the Weddell and Ross Seas. Ocean Science Discussions, v. 8, p. 1657-1694, 2011. Disponível em:<http://www.ocean-sci-discuss.net/8/1657/2011/osd-8-1657-2011.pdf>. Acesso em: 19 mar. 2012. http://repositorio.furg.br/handle/1/1960 doi:10.5194/osd-8-1657-2011 open access article 2011 ftunivfurg https://doi.org/10.5194/osd-8-1657-2011 2023-10-24T20:59:00Z We describe the seasonal and interannual variability of volume transports in Weddell and Ross Seas using the 1/12◦20-yr simulation of the OCCAM global ocean general circulation model. The average simulated full-depth cumulative volume transports were 28.5±2.9 Sv (1 Sv ≡ 106 m3s−15) and 13.4±5.2 Sv, across the main export regions of the Weddell and Ross Seas, respectively. The values of mean outflow of Antarctic Bottom Water (AABW) (defined by neutral density γ n≥ 28.27 kg m−3) from the Weddell and Ross Seas of 10.6±3.1 Sv and 0.5±0.7 Sv, respectively, agree with the range reported in historical observational studies. Variability in AABW export is predominantly at periods of ∼ 1 yr and 2–4 yr. The transit time taken by AABW sourced in the Southern Weddell Sea to reach the main Weddell export zone is ∼ 2 yr. Lagged correlation between the thermohaline properties of AABW source waters and AABW export indicates that recent shelf waters freshening trends are likely related to changes in the AABW outflow rates. Article in Journal/Newspaper Antarc* Antarctic Weddell Sea RI FURG (Repositório da Universidade Federal do Rio Grande) Antarctic Weddell Weddell Sea |
institution |
Open Polar |
collection |
RI FURG (Repositório da Universidade Federal do Rio Grande) |
op_collection_id |
ftunivfurg |
language |
English |
description |
We describe the seasonal and interannual variability of volume transports in Weddell and Ross Seas using the 1/12◦20-yr simulation of the OCCAM global ocean general circulation model. The average simulated full-depth cumulative volume transports were 28.5±2.9 Sv (1 Sv ≡ 106 m3s−15) and 13.4±5.2 Sv, across the main export regions of the Weddell and Ross Seas, respectively. The values of mean outflow of Antarctic Bottom Water (AABW) (defined by neutral density γ n≥ 28.27 kg m−3) from the Weddell and Ross Seas of 10.6±3.1 Sv and 0.5±0.7 Sv, respectively, agree with the range reported in historical observational studies. Variability in AABW export is predominantly at periods of ∼ 1 yr and 2–4 yr. The transit time taken by AABW sourced in the Southern Weddell Sea to reach the main Weddell export zone is ∼ 2 yr. Lagged correlation between the thermohaline properties of AABW source waters and AABW export indicates that recent shelf waters freshening trends are likely related to changes in the AABW outflow rates. |
format |
Article in Journal/Newspaper |
author |
Kerr, Rodrigo Heywood, Karen Mata, Mauricio Magalhães Garcia, Carlos Alberto Eiras |
spellingShingle |
Kerr, Rodrigo Heywood, Karen Mata, Mauricio Magalhães Garcia, Carlos Alberto Eiras On the export of dense water from the Weddell and Ross Seas |
author_facet |
Kerr, Rodrigo Heywood, Karen Mata, Mauricio Magalhães Garcia, Carlos Alberto Eiras |
author_sort |
Kerr, Rodrigo |
title |
On the export of dense water from the Weddell and Ross Seas |
title_short |
On the export of dense water from the Weddell and Ross Seas |
title_full |
On the export of dense water from the Weddell and Ross Seas |
title_fullStr |
On the export of dense water from the Weddell and Ross Seas |
title_full_unstemmed |
On the export of dense water from the Weddell and Ross Seas |
title_sort |
on the export of dense water from the weddell and ross seas |
publishDate |
2011 |
url |
http://repositorio.furg.br/handle/1/1960 https://doi.org/10.5194/osd-8-1657-2011 |
geographic |
Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Weddell Sea |
genre_facet |
Antarc* Antarctic Weddell Sea |
op_relation |
KERR, Rodrigo et al. On the export of dense water from the Weddell and Ross Seas. Ocean Science Discussions, v. 8, p. 1657-1694, 2011. Disponível em:<http://www.ocean-sci-discuss.net/8/1657/2011/osd-8-1657-2011.pdf>. Acesso em: 19 mar. 2012. http://repositorio.furg.br/handle/1/1960 doi:10.5194/osd-8-1657-2011 |
op_rights |
open access |
op_doi |
https://doi.org/10.5194/osd-8-1657-2011 |
_version_ |
1782341757239820288 |