The University of Southampton
University of Southampton Institutional Repository

The scaling of the meridional overturning with the meridional temperature gradient in idealized general circulation models

Lucas, M.A., Hirschi, J. and Marotzke, J. (2006) The scaling of the meridional overturning with the meridional temperature gradient in idealized general circulation models Ocean Modelling, 13, (3-4), pp. 306-318. (doi:10.1016/j.ocemod.2006.03.001).

Record type: Article

Abstract

The scaling law linking the strength of the meridional overturning to the surface meridional temperature gradient is re-examined in two ocean general circulation models at coarse resolution in an idealised single-hemisphere setting. Two sets of results are presented, where the surface meridional temperature gradient is decreased either by increasing the northernmost temperature and keeping the equator temperature fixed, or by decreasing the equator temperature and keeping the northernmost temperature fixed. The maximum of the meridional overturning first increases and then decreases when the northernmost temperature is gradually increased, whereas the maximum overturning decreases monotonically when the equator temperature is decreased. No scaling law can be derived when the northernmost temperature is increased, whereas a 2/3 power law is found when the temperature is decreased at the equator. The behaviour of the overturning is strongly influenced by the vigour and, particularly, the spatial patterns of convection, which vary substantially between the two sets and which control the horizontal and vertical density gradients at high latitudes.



Full text not available from this repository.

More information

Published date: 2006
Keywords: OGCM, scaling law, MOC, convection
Organisations: Marine Systems Modelling

Identifiers

Local EPrints ID: 44032
URI: http://eprints.soton.ac.uk/id/eprint/44032
ISSN: 1463-5003
PURE UUID: 2cbfe671-4887-461b-8b2b-002fae8f7969

Catalogue record

Date deposited: 07 Feb 2007
Last modified: 17 Jul 2017 15:16

Export record

Altmetrics

Contributors

Author: M.A. Lucas
Author: J. Hirschi
Author: J. Marotzke

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.

×