Antarctic intermediate water mass formation in ocean general circulation models
[Abstract]: Antarctic Intermediate Water is formed at the high mid-latitudes of the Southern Ocean. In many ocean general circulation model simulations with coarse resolution and a z-coordinate, a mid-depth salinity minimum characteristic of this intermediate water is reproduced. However, for the re...
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ftusqland:oai:research.usq.edu.au:9xvyx 2023-05-15T14:13:39+02:00 Antarctic intermediate water mass formation in ocean general circulation models On Antarctic intermediate water mass formation in ocean general circulation models. Sorensen, Jacob V. T. Ribbe, Joachim Shaffer, Gary 2001 application/pdf https://research.usq.edu.au/item/9xvyx/antarctic-intermediate-water-mass-formation-in-ocean-general-circulation-models https://research.usq.edu.au/download/608c6feb39841569318ea954ba18bfca7d714726c8135788060bee173db634a8/110072/Sorensen_Ribbe_Shaffer_Author%27s_version.pdf https://doi.org/10.1175/1520-0485(2001)031<3295:AIWMFI>2.0.CO;2 unknown https://research.usq.edu.au/download/608c6feb39841569318ea954ba18bfca7d714726c8135788060bee173db634a8/110072/Sorensen_Ribbe_Shaffer_Author%27s_version.pdf https://doi.org/10.1175/1520-0485(2001)031<3295:AIWMFI>2.0.CO;2 Sorensen, Jacob V. T., Ribbe, Joachim and Shaffer, Gary. 2001. "Antarctic intermediate water mass formation in ocean general circulation models." Journal of Physical Oceanography. 31 (11), pp. 3295-3311. https://doi.org/10.1175/1520-0485(2001)031<3295:AIWMFI>2.0.CO;2 Southern Ocean water masses mode water intermediate water ocean general circulation modelling Antarctic article PeerReviewed 2001 ftusqland https://doi.org/10.1175/1520-0485(2001)031<3295:AIWMFI>2.0.CO;2 2023-04-03T22:38:15Z [Abstract]: Antarctic Intermediate Water is formed at the high mid-latitudes of the Southern Ocean. In many ocean general circulation model simulations with coarse resolution and a z-coordinate, a mid-depth salinity minimum characteristic of this intermediate water is reproduced. However, for the real ocean it remains unclear which are the dominant processes in the formation of this water mass and which are the source regions for contributing surface waters. To elucidate such processes and quantify intermediate water formation rates, two experiments with an ocean general circulation model were conducted. In one experiment, the traditional parameterization of horizontal and vertical mixing was applied, while the second model included the Gent-McWilliams parameterization for an eddy-induced transport velocity. In the latter application, the production and meridional export of intermediate water was found to be larger than in the first experiment. Furthermore, mid-latitude convective mixing, which had been argued to be the main intermediate water mass formation mechanism was found to be not as important as in previous model results. Passive tracer experiments indicated that diapycnal mixing and circumpolar subduction might also play important roles as water mass formation processes in this particular ocean circulation model. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean University of Southern Queensland: USQ ePrints Antarctic Southern Ocean |
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Open Polar |
collection |
University of Southern Queensland: USQ ePrints |
op_collection_id |
ftusqland |
language |
unknown |
topic |
Southern Ocean water masses mode water intermediate water ocean general circulation modelling Antarctic |
spellingShingle |
Southern Ocean water masses mode water intermediate water ocean general circulation modelling Antarctic Sorensen, Jacob V. T. Ribbe, Joachim Shaffer, Gary Antarctic intermediate water mass formation in ocean general circulation models |
topic_facet |
Southern Ocean water masses mode water intermediate water ocean general circulation modelling Antarctic |
description |
[Abstract]: Antarctic Intermediate Water is formed at the high mid-latitudes of the Southern Ocean. In many ocean general circulation model simulations with coarse resolution and a z-coordinate, a mid-depth salinity minimum characteristic of this intermediate water is reproduced. However, for the real ocean it remains unclear which are the dominant processes in the formation of this water mass and which are the source regions for contributing surface waters. To elucidate such processes and quantify intermediate water formation rates, two experiments with an ocean general circulation model were conducted. In one experiment, the traditional parameterization of horizontal and vertical mixing was applied, while the second model included the Gent-McWilliams parameterization for an eddy-induced transport velocity. In the latter application, the production and meridional export of intermediate water was found to be larger than in the first experiment. Furthermore, mid-latitude convective mixing, which had been argued to be the main intermediate water mass formation mechanism was found to be not as important as in previous model results. Passive tracer experiments indicated that diapycnal mixing and circumpolar subduction might also play important roles as water mass formation processes in this particular ocean circulation model. |
format |
Article in Journal/Newspaper |
author |
Sorensen, Jacob V. T. Ribbe, Joachim Shaffer, Gary |
author_facet |
Sorensen, Jacob V. T. Ribbe, Joachim Shaffer, Gary |
author_sort |
Sorensen, Jacob V. T. |
title |
Antarctic intermediate water mass formation in ocean general circulation models |
title_short |
Antarctic intermediate water mass formation in ocean general circulation models |
title_full |
Antarctic intermediate water mass formation in ocean general circulation models |
title_fullStr |
Antarctic intermediate water mass formation in ocean general circulation models |
title_full_unstemmed |
Antarctic intermediate water mass formation in ocean general circulation models |
title_sort |
antarctic intermediate water mass formation in ocean general circulation models |
publishDate |
2001 |
url |
https://research.usq.edu.au/item/9xvyx/antarctic-intermediate-water-mass-formation-in-ocean-general-circulation-models https://research.usq.edu.au/download/608c6feb39841569318ea954ba18bfca7d714726c8135788060bee173db634a8/110072/Sorensen_Ribbe_Shaffer_Author%27s_version.pdf https://doi.org/10.1175/1520-0485(2001)031<3295:AIWMFI>2.0.CO;2 |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
https://research.usq.edu.au/download/608c6feb39841569318ea954ba18bfca7d714726c8135788060bee173db634a8/110072/Sorensen_Ribbe_Shaffer_Author%27s_version.pdf https://doi.org/10.1175/1520-0485(2001)031<3295:AIWMFI>2.0.CO;2 Sorensen, Jacob V. T., Ribbe, Joachim and Shaffer, Gary. 2001. "Antarctic intermediate water mass formation in ocean general circulation models." Journal of Physical Oceanography. 31 (11), pp. 3295-3311. https://doi.org/10.1175/1520-0485(2001)031<3295:AIWMFI>2.0.CO;2 |
op_doi |
https://doi.org/10.1175/1520-0485(2001)031<3295:AIWMFI>2.0.CO;2 |
_version_ |
1766286132846264320 |