On multidecadal and quasi-decadal North Atlantic variability
Observed sea surface temperatures (SSTs) in the North Atlantic from 1958 through 2000, as well as data from an ocean model simulation driven with the atmospheric variability observed during the same period, are examined using multichannel singular spectrum analysis. The two leading oscillatory modes...
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ftoceanrep:oai:oceanrep.geomar.de:7533 2023-05-15T17:25:55+02:00 On multidecadal and quasi-decadal North Atlantic variability Alvarez-Garcia, F. Latif, Mojib Biastoch, Arne 2008 text https://oceanrep.geomar.de/id/eprint/7533/ https://oceanrep.geomar.de/id/eprint/7533/1/2007JCLI1800.pdf https://doi.org/10.1175/2007JCLI1800.1 en eng AMS (American Meteorological Society) https://oceanrep.geomar.de/id/eprint/7533/1/2007JCLI1800.pdf Alvarez-Garcia, F., Latif, M. and Biastoch, A. (2008) On multidecadal and quasi-decadal North Atlantic variability. Open Access Journal of Climate, 21 (14). pp. 3433-3452. DOI 10.1175/2007JCLI1800.1 <https://doi.org/10.1175/2007JCLI1800.1>. doi:10.1175/2007JCLI1800.1 info:eu-repo/semantics/openAccess Article PeerReviewed 2008 ftoceanrep https://doi.org/10.1175/2007JCLI1800.1 2023-04-07T14:54:56Z Observed sea surface temperatures (SSTs) in the North Atlantic from 1958 through 2000, as well as data from an ocean model simulation driven with the atmospheric variability observed during the same period, are examined using multichannel singular spectrum analysis. The two leading oscillatory modes are associated with a multidecadal and a quasi-decadal period. The former is connected to a basinwide uniform SST pattern and changes in the deep North Atlantic meridional overturning circulation. The quasi-decadal mode involves a tripolar SST anomaly pattern forced by atmospheric variability with a spatial structure resembling that of the North Atlantic Oscillation (NAO). The upper ocean’s dynamical response to this NAO variability provides an instantaneous positive feedback to the SST pattern, while a delayed negative feedback is due to shallow overturning circulation anomalies. Article in Journal/Newspaper North Atlantic North Atlantic oscillation OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Journal of Climate 21 14 3433 3452 |
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Open Polar |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
Observed sea surface temperatures (SSTs) in the North Atlantic from 1958 through 2000, as well as data from an ocean model simulation driven with the atmospheric variability observed during the same period, are examined using multichannel singular spectrum analysis. The two leading oscillatory modes are associated with a multidecadal and a quasi-decadal period. The former is connected to a basinwide uniform SST pattern and changes in the deep North Atlantic meridional overturning circulation. The quasi-decadal mode involves a tripolar SST anomaly pattern forced by atmospheric variability with a spatial structure resembling that of the North Atlantic Oscillation (NAO). The upper ocean’s dynamical response to this NAO variability provides an instantaneous positive feedback to the SST pattern, while a delayed negative feedback is due to shallow overturning circulation anomalies. |
format |
Article in Journal/Newspaper |
author |
Alvarez-Garcia, F. Latif, Mojib Biastoch, Arne |
spellingShingle |
Alvarez-Garcia, F. Latif, Mojib Biastoch, Arne On multidecadal and quasi-decadal North Atlantic variability |
author_facet |
Alvarez-Garcia, F. Latif, Mojib Biastoch, Arne |
author_sort |
Alvarez-Garcia, F. |
title |
On multidecadal and quasi-decadal North Atlantic variability |
title_short |
On multidecadal and quasi-decadal North Atlantic variability |
title_full |
On multidecadal and quasi-decadal North Atlantic variability |
title_fullStr |
On multidecadal and quasi-decadal North Atlantic variability |
title_full_unstemmed |
On multidecadal and quasi-decadal North Atlantic variability |
title_sort |
on multidecadal and quasi-decadal north atlantic variability |
publisher |
AMS (American Meteorological Society) |
publishDate |
2008 |
url |
https://oceanrep.geomar.de/id/eprint/7533/ https://oceanrep.geomar.de/id/eprint/7533/1/2007JCLI1800.pdf https://doi.org/10.1175/2007JCLI1800.1 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
https://oceanrep.geomar.de/id/eprint/7533/1/2007JCLI1800.pdf Alvarez-Garcia, F., Latif, M. and Biastoch, A. (2008) On multidecadal and quasi-decadal North Atlantic variability. Open Access Journal of Climate, 21 (14). pp. 3433-3452. DOI 10.1175/2007JCLI1800.1 <https://doi.org/10.1175/2007JCLI1800.1>. doi:10.1175/2007JCLI1800.1 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1175/2007JCLI1800.1 |
container_title |
Journal of Climate |
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21 |
container_issue |
14 |
container_start_page |
3433 |
op_container_end_page |
3452 |
_version_ |
1766117434722353152 |