An experimental study of the Atlantic variability on interdecadal timescales
A series of laboratory experiments has been carried out to model the basic dynamics of the multidecadal variability observed in North Atlantic sea surface temperature (SST) records. According to the minimal numerical sector model introduced by te Raa and Dijkstra (2002), the three key components to...
Published in: | Nonlinear Processes in Geophysics |
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2012
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00025697 2023-05-15T17:29:27+02:00 An experimental study of the Atlantic variability on interdecadal timescales Vincze, M. Jánosi, I. M. Barsy, E. Tél, T. Várai, A. 2012-06 electronic https://doi.org/10.5194/npg-19-335-2012 https://noa.gwlb.de/receive/cop_mods_00025697 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00025652/npg-19-335-2012.pdf https://npg.copernicus.org/articles/19/335/2012/npg-19-335-2012.pdf eng eng Copernicus Publications Nonlinear Processes in Geophysics -- http://www.bibliothek.uni-regensburg.de/ezeit/?2078085 -- http://www.nonlin-processes-geophys.net/ -- http://www.copernicus.org/EGU/npg/npg.htm -- 1607-7946 https://doi.org/10.5194/npg-19-335-2012 https://noa.gwlb.de/receive/cop_mods_00025697 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00025652/npg-19-335-2012.pdf https://npg.copernicus.org/articles/19/335/2012/npg-19-335-2012.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2012 ftnonlinearchiv https://doi.org/10.5194/npg-19-335-2012 2022-02-08T22:49:34Z A series of laboratory experiments has been carried out to model the basic dynamics of the multidecadal variability observed in North Atlantic sea surface temperature (SST) records. According to the minimal numerical sector model introduced by te Raa and Dijkstra (2002), the three key components to excite such a low-frequency variability are rotation, meridional temperature gradient and additive thermal noise in the surface heat forcing. If these components are present, periodic perturbations of the overturning background flow are excited, leading to thermal Rossby mode like propagation of anomalous patches in the SST field. Our tabletop scale setup was built to capture this phenomenon, and to test whether the aforementioned three components are indeed sufficient to generate a low-frequency variability in the system. The results are compared to those of the numerical models, as well as to oceanic SST reanalysis records. To the best of our knowledge, the experiment described here is the very first to investigate the dynamics of the North Atlantic multidecadal variability in a laboratory-scale setup. Article in Journal/Newspaper North Atlantic Niedersächsisches Online-Archiv NOA Raa ENVELOPE(14.933,14.933,68.583,68.583) Nonlinear Processes in Geophysics 19 3 335 343 |
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Open Polar |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Vincze, M. Jánosi, I. M. Barsy, E. Tél, T. Várai, A. An experimental study of the Atlantic variability on interdecadal timescales |
topic_facet |
article Verlagsveröffentlichung |
description |
A series of laboratory experiments has been carried out to model the basic dynamics of the multidecadal variability observed in North Atlantic sea surface temperature (SST) records. According to the minimal numerical sector model introduced by te Raa and Dijkstra (2002), the three key components to excite such a low-frequency variability are rotation, meridional temperature gradient and additive thermal noise in the surface heat forcing. If these components are present, periodic perturbations of the overturning background flow are excited, leading to thermal Rossby mode like propagation of anomalous patches in the SST field. Our tabletop scale setup was built to capture this phenomenon, and to test whether the aforementioned three components are indeed sufficient to generate a low-frequency variability in the system. The results are compared to those of the numerical models, as well as to oceanic SST reanalysis records. To the best of our knowledge, the experiment described here is the very first to investigate the dynamics of the North Atlantic multidecadal variability in a laboratory-scale setup. |
format |
Article in Journal/Newspaper |
author |
Vincze, M. Jánosi, I. M. Barsy, E. Tél, T. Várai, A. |
author_facet |
Vincze, M. Jánosi, I. M. Barsy, E. Tél, T. Várai, A. |
author_sort |
Vincze, M. |
title |
An experimental study of the Atlantic variability on interdecadal timescales |
title_short |
An experimental study of the Atlantic variability on interdecadal timescales |
title_full |
An experimental study of the Atlantic variability on interdecadal timescales |
title_fullStr |
An experimental study of the Atlantic variability on interdecadal timescales |
title_full_unstemmed |
An experimental study of the Atlantic variability on interdecadal timescales |
title_sort |
experimental study of the atlantic variability on interdecadal timescales |
publisher |
Copernicus Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/npg-19-335-2012 https://noa.gwlb.de/receive/cop_mods_00025697 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00025652/npg-19-335-2012.pdf https://npg.copernicus.org/articles/19/335/2012/npg-19-335-2012.pdf |
long_lat |
ENVELOPE(14.933,14.933,68.583,68.583) |
geographic |
Raa |
geographic_facet |
Raa |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Nonlinear Processes in Geophysics -- http://www.bibliothek.uni-regensburg.de/ezeit/?2078085 -- http://www.nonlin-processes-geophys.net/ -- http://www.copernicus.org/EGU/npg/npg.htm -- 1607-7946 https://doi.org/10.5194/npg-19-335-2012 https://noa.gwlb.de/receive/cop_mods_00025697 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00025652/npg-19-335-2012.pdf https://npg.copernicus.org/articles/19/335/2012/npg-19-335-2012.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/npg-19-335-2012 |
container_title |
Nonlinear Processes in Geophysics |
container_volume |
19 |
container_issue |
3 |
container_start_page |
335 |
op_container_end_page |
343 |
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1766123582904074240 |