The University of Southampton
University of Southampton Institutional Repository

Dynamical budgets of the Antarctic Circumpolar Current using ocean general-circulation models

Grezio, A., Wells, N.C., Ivchenko, V.O. and de Cuevas, B.A. (2005) Dynamical budgets of the Antarctic Circumpolar Current using ocean general-circulation models Quarterly Journal of the Royal Meteorological Society, 131, (607), pp. 833-860. (doi:10.1256/qj.03.213).

Record type: Article

Abstract

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.

PDF 16337.pdf - Version of Record
Restricted to Repository staff only
Download (4MB)

More information

Published date: 2005
Keywords: eddies, dynamical budgets

Identifiers

Local EPrints ID: 16337
URI: http://eprints.soton.ac.uk/id/eprint/16337
ISSN: 0035-9009
PURE UUID: 222a325e-09a3-4922-a562-12497a003f06

Catalogue record

Date deposited: 27 Jul 2005
Last modified: 17 Jul 2017 16:43

Export record

Altmetrics

Contributors

Author: A. Grezio
Author: N.C. Wells
Author: V.O. Ivchenko
Author: B.A. de Cuevas

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×