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Lagrangian Timescales of Southern Ocean Upwelling in a Hierarchy of Model Resolutions

Drake, Henri F.; Morrison, Adele; Griffies, S. M.; Sarmiento, Jorge L.; Weijer, Wilbert; Gray, Alison R.


In this paper we study upwelling pathways and timescales of Circumpolar Deep Water (CDW) in a hierarchy of models using a Lagrangian particle tracking method. Lagrangian timescales of CDW upwelling decrease from 87 years to 31 years to 17 years as the ocean resolution is refined from 1° to 0.25° to 0.1°. We attribute some of the differences in timescale to the strength of the eddy fields, as demonstrated by temporally degrading high‐resolution model velocity fields. Consistent with the...[Show more]

CollectionsANU Research Publications
Date published: 2018
Type: Journal article
Source: Geophysical Research Letters
DOI: 10.1002/2017GL076045
Access Rights: Open Access


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