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Journal article

Annular modes and apparent eddy feedbacks in the Southern Hemisphere

Abstract:

Lagged correlation analysis is often used to infer intraseasonal dynamical effects but is known to be a↵ected by non-stationarity. We highlight a pronounced quasi-two-year peak in the anomalous zonal wind and eddy momentum flux convergence power spectra in the Southern Hemisphere, which is prima facie evidence for non-stationarity. We then investigate the consequences of this non-stationarity for the Southern Annular Mode and for eddy momentum flux convergence. We argue that positive lagged c...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1002/2016GL068851

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atmos Ocean & Planet Physics
Role:
Author

Contributors

Shepherd, T
Byrne, N
Plumb, R
European Research Council More from this funder
European Union More from this funder
Publisher:
American Geophysical Union (AGU) Publisher's website
Journal:
Geophysical Research Letters Journal website
Publication date:
2016-04-01
Acceptance date:
2016-04-11
DOI:
ISSN:
1944-8007
Source identifiers:
614936
Pubs id:
pubs:614936
UUID:
uuid:9e926375-40c7-4e38-ba4a-df9c15ba20eb
Local pid:
pubs:614936
Deposit date:
2016-04-12

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