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Eddy response to Southern Ocean climate modes

Morrow, R.; Ward, Marshall; Hogg, Andrew; Pasquet, S.


Interannual variations in Southern Ocean eddy kinetic energy (EKE) are investigated using 16 years of altimetric data. Circumpolar averages show a peak in EKE from 2000 to 2002, 2-3 years after the peak in the Southern Annular Mode (SAM) index. Although the SAM forcing is in phase around the circumpolar band, we find the EKE response varies regionally. The strongest EKE is in the Pacific, with energy peaks occurring progressively later toward the east. We suggest that this is due to the...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
Source: Journal of Geophysical Research
DOI: 10.1029/2009JC005894


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