Extratropical low‐frequency variability as a low‐dimensional problem. II: Stationarity and stability of large‐scale equilibria
Abstract Stationarity and stability properties of large‐scale persistent anomalies in the northern hemisphere are addressed. The low‐order model developed in Part I is used for this purpose. It was obtained as the projection of a three‐level quasi‐geostrophic system on the ten leading empirical orth...
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crwiley:10.1256/003590002320373201 2023-12-03T10:17:48+01:00 Extratropical low‐frequency variability as a low‐dimensional problem. II: Stationarity and stability of large‐scale equilibria D'andrea, Fabio 2002 http://dx.doi.org/10.1256/003590002320373201 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1256%2F003590002320373201 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1256/003590002320373201 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Quarterly Journal of the Royal Meteorological Society volume 128, issue 582, page 1059-1073 ISSN 0035-9009 1477-870X Atmospheric Science journal-article 2002 crwiley https://doi.org/10.1256/003590002320373201 2023-11-09T14:22:52Z Abstract Stationarity and stability properties of large‐scale persistent anomalies in the northern hemisphere are addressed. The low‐order model developed in Part I is used for this purpose. It was obtained as the projection of a three‐level quasi‐geostrophic system on the ten leading empirical orthogonal functions. Three global quasi‐ stationary states are identified, which represent the Arctic high and the positive and negative phases of the main teleconnections (Pacific North American and North Atlantic oscillation). The quasi‐stationary solutions have only a partial correspondence to the weather regimes found in Part I. Stability analysis shows a growing mode that describes an oscillation between the two phases of the teleconnections. The negative teleconnection state is also shown to be much more stable than the other two. Possible decay mechanisms are also discussed. Copyright © 2002 Royal Meteorological Society Article in Journal/Newspaper Arctic North Atlantic North Atlantic oscillation Wiley Online Library (via Crossref) Arctic Pacific Quarterly Journal of the Royal Meteorological Society 128 582 1059 1073 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Atmospheric Science |
spellingShingle |
Atmospheric Science D'andrea, Fabio Extratropical low‐frequency variability as a low‐dimensional problem. II: Stationarity and stability of large‐scale equilibria |
topic_facet |
Atmospheric Science |
description |
Abstract Stationarity and stability properties of large‐scale persistent anomalies in the northern hemisphere are addressed. The low‐order model developed in Part I is used for this purpose. It was obtained as the projection of a three‐level quasi‐geostrophic system on the ten leading empirical orthogonal functions. Three global quasi‐ stationary states are identified, which represent the Arctic high and the positive and negative phases of the main teleconnections (Pacific North American and North Atlantic oscillation). The quasi‐stationary solutions have only a partial correspondence to the weather regimes found in Part I. Stability analysis shows a growing mode that describes an oscillation between the two phases of the teleconnections. The negative teleconnection state is also shown to be much more stable than the other two. Possible decay mechanisms are also discussed. Copyright © 2002 Royal Meteorological Society |
format |
Article in Journal/Newspaper |
author |
D'andrea, Fabio |
author_facet |
D'andrea, Fabio |
author_sort |
D'andrea, Fabio |
title |
Extratropical low‐frequency variability as a low‐dimensional problem. II: Stationarity and stability of large‐scale equilibria |
title_short |
Extratropical low‐frequency variability as a low‐dimensional problem. II: Stationarity and stability of large‐scale equilibria |
title_full |
Extratropical low‐frequency variability as a low‐dimensional problem. II: Stationarity and stability of large‐scale equilibria |
title_fullStr |
Extratropical low‐frequency variability as a low‐dimensional problem. II: Stationarity and stability of large‐scale equilibria |
title_full_unstemmed |
Extratropical low‐frequency variability as a low‐dimensional problem. II: Stationarity and stability of large‐scale equilibria |
title_sort |
extratropical low‐frequency variability as a low‐dimensional problem. ii: stationarity and stability of large‐scale equilibria |
publisher |
Wiley |
publishDate |
2002 |
url |
http://dx.doi.org/10.1256/003590002320373201 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1256%2F003590002320373201 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1256/003590002320373201 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic North Atlantic North Atlantic oscillation |
genre_facet |
Arctic North Atlantic North Atlantic oscillation |
op_source |
Quarterly Journal of the Royal Meteorological Society volume 128, issue 582, page 1059-1073 ISSN 0035-9009 1477-870X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1256/003590002320373201 |
container_title |
Quarterly Journal of the Royal Meteorological Society |
container_volume |
128 |
container_issue |
582 |
container_start_page |
1059 |
op_container_end_page |
1073 |
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1784264755358203904 |