Zonal jets in the Southern Ocean: a semi-analytical model based on scale separation

Article

Naghibi, E., Karabasov, S. A. and Kamenkovich, I. 2023. Zonal jets in the Southern Ocean: a semi-analytical model based on scale separation. Ocean Modelling. 183 (Art. 102198). https://doi.org/10.1016/j.ocemod.2023.102198
AuthorsNaghibi, E., Karabasov, S. A. and Kamenkovich, I.
Abstract

A reduced-order semi-analytic model of multiple zonal jets in the Southern Ocean is proposed based on the statistical approach and scale decomposition. By introducing two dominant scales in the vorticity equation, the model describes the large-scale and mesoscale dynamics using the explicit momentum dissipation in the horizontal and vertical directions. For validation and physical insights, the results of the reduced-order model are compared with solutions of two eddy-resolving ocean models: i) a realistic primitive-equation HYCOM (HYbrid Coordinate Ocean Model) simulation of the Southern Ocean and ii) an idealized quasi-geostrophic model of a shear-driven channel flow.

KeywordsZonal jets; Southern Ocean; Scale separation; Semi-analytical model
JournalOcean Modelling
Journal citation183 (Art. 102198)
ISSN1463-5003
Year2023
PublisherElsevier
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Anyone
Digital Object Identifier (DOI)https://doi.org/10.1016/j.ocemod.2023.102198
Publication dates
Online15 Apr 2023
Print03 May 2023
Publication process dates
Accepted08 Apr 2023
Deposited05 Jun 2023
FunderInternational Cooperation in Ridge-Crest Studies (InterRidge)
Copyright holder© 2023, The Author(s)
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