Impact of cooling on the water mass exchange of Agulhas rings in a high resolution ocean model

Donners, J.; Drijfhout, S.S.; Coward, A.C. ORCID: https://orcid.org/0000-0002-9111-7700. 2004 Impact of cooling on the water mass exchange of Agulhas rings in a high resolution ocean model. Geophysical Research Letters, 31 (16). L16312. https://doi.org/10.1029/2004GL020644

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Official URL: http://dx.doi.org/10.1029/2004GL020644

Abstract/Summary

The leakage of water from three Agulhas rings has been studied in a high resolution global ocean model using a Lagrangian particle following technique. A bowl shaped ring boundary that reaches a radius of 140 km and a depth of 800 m separates regions of fast and slow leakage. The dilution of Agulhas ring water generally increases with depth, but a shallow secondary circulation enhances leakage in the upper 150 m. Strong surface cooling upsets the horizonal pressure gradient which is balanced by subinertial motions that act to form this shallow overturning cell.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.1029/2004GL020644
ISSN:	0094-8276
Date made live:	27 Oct 2004 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/111156

Item Type:

Publication - Article

Digital Object Identifier (DOI):

https://doi.org/10.1029/2004GL020644

ISSN:

0094-8276

Date made live:

27 Oct 2004 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/111156