Dynamical budgets of the Antarctic Circumpolar Current using ocean general-circulation models
Three general-circulation models (FRAM, OCCAM and POP) are used to investigate the dynamics of the Antarctic Circumpolar Current (ACC) at the latitudes of the Drake Passage where the ACC is unbounded. In these general circulation models, bottom form stress balances the wind stress in the momentum bu...
Published in: | Quarterly Journal of the Royal Meteorological Society |
---|---|
Main Authors: | , , , |
Other Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2005
|
Subjects: | |
Online Access: | http://hdl.handle.net/2122/8232 https://doi.org/10.1256/qj.03.213 |
id |
ftingv:oai:www.earth-prints.org:2122/8232 |
---|---|
record_format |
openpolar |
spelling |
ftingv:oai:www.earth-prints.org:2122/8232 2023-05-15T14:01:37+02:00 Dynamical budgets of the Antarctic Circumpolar Current using ocean general-circulation models Grezio, A. Wells, N. C. Ivchenko, V. O. De Cuevas, B. A. Grezio, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia Wells, N. C.; Southampton Oceanography Centre, UK Ivchenko, V. O.; Southampton Oceanography Centre, UK De Cuevas, B. A.; Southampton Oceanography Centre, UK Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia Southampton Oceanography Centre, UK 2005 http://hdl.handle.net/2122/8232 https://doi.org/10.1256/qj.03.213 en eng Q. J. R. Meteorol. Soc. /131 (2005) http://hdl.handle.net/2122/8232 doi:10.1256/qj.03.213 restricted Eddies - Dynamical Budgets 03. Hydrosphere::03.03. Physical::03.03.02. General circulation article 2005 ftingv https://doi.org/10.1256/qj.03.213 2022-07-29T06:06:22Z Three general-circulation models (FRAM, OCCAM and POP) are used to investigate the dynamics of the Antarctic Circumpolar Current (ACC) at the latitudes of the Drake Passage where the ACC is unbounded. In these general circulation models, bottom form stress balances the wind stress in the momentum budgets. In the vorticity budgets, the main balance is between wind curl and bottom pressure torque in FRAM, OCCAM and POP. Moreover, in the ACC belt all topographic features are regions of nonlinearity and bottom pressure torque variations, with the Drake Passage playing the largest role. Transient eddy Reynolds stresses (TERSs) play a different role in the three models. In the upper levels, TERSs accelerate the flow in the POP and FRAM models, but decelerate the flow in OCCAM. The behaviour of TERSs change throughout the whole water column in the ACC belt and Reynolds stresses have a dragging effect on the flow below the levels where the topography starts to obstruct the flow. The total volume transport in three models is very different. Additionally, the different spatial resolution, which results in a different level of eddy kinetic energy, has a significant influence on the transport. Published 833-860 3.7. Dinamica del clima e dell'oceano JCR Journal restricted Article in Journal/Newspaper Antarc* Antarctic Drake Passage Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) Antarctic Curl ENVELOPE(-63.071,-63.071,-70.797,-70.797) Drake Passage The Antarctic Quarterly Journal of the Royal Meteorological Society 131 607 833 860 |
institution |
Open Polar |
collection |
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
op_collection_id |
ftingv |
language |
English |
topic |
Eddies - Dynamical Budgets 03. Hydrosphere::03.03. Physical::03.03.02. General circulation |
spellingShingle |
Eddies - Dynamical Budgets 03. Hydrosphere::03.03. Physical::03.03.02. General circulation Grezio, A. Wells, N. C. Ivchenko, V. O. De Cuevas, B. A. Dynamical budgets of the Antarctic Circumpolar Current using ocean general-circulation models |
topic_facet |
Eddies - Dynamical Budgets 03. Hydrosphere::03.03. Physical::03.03.02. General circulation |
description |
Three general-circulation models (FRAM, OCCAM and POP) are used to investigate the dynamics of the Antarctic Circumpolar Current (ACC) at the latitudes of the Drake Passage where the ACC is unbounded. In these general circulation models, bottom form stress balances the wind stress in the momentum budgets. In the vorticity budgets, the main balance is between wind curl and bottom pressure torque in FRAM, OCCAM and POP. Moreover, in the ACC belt all topographic features are regions of nonlinearity and bottom pressure torque variations, with the Drake Passage playing the largest role. Transient eddy Reynolds stresses (TERSs) play a different role in the three models. In the upper levels, TERSs accelerate the flow in the POP and FRAM models, but decelerate the flow in OCCAM. The behaviour of TERSs change throughout the whole water column in the ACC belt and Reynolds stresses have a dragging effect on the flow below the levels where the topography starts to obstruct the flow. The total volume transport in three models is very different. Additionally, the different spatial resolution, which results in a different level of eddy kinetic energy, has a significant influence on the transport. Published 833-860 3.7. Dinamica del clima e dell'oceano JCR Journal restricted |
author2 |
Grezio, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia Wells, N. C.; Southampton Oceanography Centre, UK Ivchenko, V. O.; Southampton Oceanography Centre, UK De Cuevas, B. A.; Southampton Oceanography Centre, UK Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia Southampton Oceanography Centre, UK |
format |
Article in Journal/Newspaper |
author |
Grezio, A. Wells, N. C. Ivchenko, V. O. De Cuevas, B. A. |
author_facet |
Grezio, A. Wells, N. C. Ivchenko, V. O. De Cuevas, B. A. |
author_sort |
Grezio, A. |
title |
Dynamical budgets of the Antarctic Circumpolar Current using ocean general-circulation models |
title_short |
Dynamical budgets of the Antarctic Circumpolar Current using ocean general-circulation models |
title_full |
Dynamical budgets of the Antarctic Circumpolar Current using ocean general-circulation models |
title_fullStr |
Dynamical budgets of the Antarctic Circumpolar Current using ocean general-circulation models |
title_full_unstemmed |
Dynamical budgets of the Antarctic Circumpolar Current using ocean general-circulation models |
title_sort |
dynamical budgets of the antarctic circumpolar current using ocean general-circulation models |
publishDate |
2005 |
url |
http://hdl.handle.net/2122/8232 https://doi.org/10.1256/qj.03.213 |
long_lat |
ENVELOPE(-63.071,-63.071,-70.797,-70.797) |
geographic |
Antarctic Curl Drake Passage The Antarctic |
geographic_facet |
Antarctic Curl Drake Passage The Antarctic |
genre |
Antarc* Antarctic Drake Passage |
genre_facet |
Antarc* Antarctic Drake Passage |
op_relation |
Q. J. R. Meteorol. Soc. /131 (2005) http://hdl.handle.net/2122/8232 doi:10.1256/qj.03.213 |
op_rights |
restricted |
op_doi |
https://doi.org/10.1256/qj.03.213 |
container_title |
Quarterly Journal of the Royal Meteorological Society |
container_volume |
131 |
container_issue |
607 |
container_start_page |
833 |
op_container_end_page |
860 |
_version_ |
1766271557433294848 |