Simulations of coastal upwelling on the Sydney Continental Shelf

Marchesiello, P., Gibbs, Mark T., & Middleton, J. H. (2000) Simulations of coastal upwelling on the Sydney Continental Shelf. Marine and Freshwater Research, 51(6), pp. 577-588.

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Abstract

Two-dimensional numerical simulations of the response of the coastal waters of Sydney, south-eastern Australia, to idealized upwelling-favourable winds are presented. The spin up of the upwelling circulation is investigated, in particular the structure of the nearshore circulation. The intensity of the final upwelling state is found to be strongly linked to the activation of the return flow through the bottom boundary layer, which is also related to the strength of imposed alongshore pressure gradients. Results from a simulation of upwelling forced by a deep-ocean alongshore-current jet also show the final upwelling state to be weak in comparison with upwelling states produced by the action of the local wind stress. Bottom boundary layer shut-down in the presence of such a forcing jet is also discussed. A simulation of a real upwelling event was also performed and good agreement was found between the simulation and observations from a field experiment performed during summer 1994 in the Sydney coastal ocean.

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10 citations in Scopus
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9 citations in Web of Science®

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ID Code: 97804
Item Type: Journal Article
Refereed: Yes
Keywords: circulation, coastal waters, upwelling, Australia
DOI: 10.1071/MF99046
ISSN: 1323-1650
Divisions: Current > Institutes > Institute for Future Environments
Copyright Owner: 2000 CSIRO Publishing
Deposited On: 01 Aug 2016 03:00
Last Modified: 01 Aug 2016 03:00

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