AustralieFrV1, Main, Exploration, bibRecord, 008788

Low‐frequency variations of the large‐scale ocean circulation and heat transport in the North Atlantic from 1955–1998 in situ temperature and salinity data

Identifieur interne : 008788 ( Main/Exploration ); précédent : 008787; suivant : 008789

Low‐frequency variations of the large‐scale ocean circulation and heat transport in the North Atlantic from 1955–1998 in situ temperature and salinity data

Auteurs : T. Huck [France] ; A. Colin De Verdière [France] ; P. Estrade [France, Australie] ; R. Schopp [France]

Source :

Geophysical Research Letters [ 0094-8276 ] ; 2008-12.

RBID : ISTEX:5F45DF6EC1836DDD5C6F2F62E94AFC8CFD4B0309

Descripteurs français

Wicri :
- topic : Climatologie.

English descriptors

Abstract

Low‐frequency variations of the large‐scale ocean circulation in the Atlantic are reconstructed from NODC pentadal anomalies of temperature and salinity from 1955 to 1998 based on hydrographic data, in addition to atmospheric reanalysis surface forcing. Diagnostic ocean circulations are estimated from simple methods using dynamical model integrations: namely diagnostic, robust diagnostic, and short prognostic. Mean transports of heat and mass are sensitive to the method and model configuration, but their decadal variability is much more coherent and does not depend explicitly on the variations of the surface forcing, its influence being imprinted in the thermohaline structure. Multidecadal variations are of the order of 20%, with large transports in the subpolar gyre in the early 1960's and mid 1990's, and low values in the mid 1970's. By reducing the influence of subgrid‐scale parameterizations and surface forcings, these methods offer alternatives to exhaustive GCM simulations.

Url:

https://api.istex.fr/document/5F45DF6EC1836DDD5C6F2F62E94AFC8CFD4B0309/fulltext/pdf

DOI: 10.1029/2008GL035635

Affiliations:

Links toward previous steps (curation, corpus...)

to stream Istex, to step Corpus: 001208
to stream Istex, to step Curation: 001208
to stream Istex, to step Checkpoint: 001155
to stream Main, to step Merge: 009049
to stream Main, to step Curation: 008788

Le document en format XML

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<author><name sortKey="Huck, T" sort="Huck, T" uniqKey="Huck T" first="T." last="Huck">T. Huck</name>
</author>
<author><name sortKey="De Verdiere, A Colin" sort="De Verdiere, A Colin" uniqKey="De Verdiere A" first="A. Colin" last="De Verdière">A. Colin De Verdière</name>
</author>
<author><name sortKey="Estrade, P" sort="Estrade, P" uniqKey="Estrade P" first="P." last="Estrade">P. Estrade</name>
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<author><name sortKey="Schopp, R" sort="Schopp, R" uniqKey="Schopp R" first="R." last="Schopp">R. Schopp</name>
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<author><name sortKey="Schopp, R" sort="Schopp, R" uniqKey="Schopp R" first="R." last="Schopp">R. Schopp</name>
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<series><title level="j" type="main">Geophysical Research Letters</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Additional series</term>
<term>Anomaly</term>
<term>Atlantic circulation</term>
<term>Atlantic circulation variations</term>
<term>Atlantic ocean</term>
<term>Atlantic oscillation</term>
<term>Average surface fluxes</term>
<term>Barotropic</term>
<term>Barotropic streamfunction</term>
<term>Climatology</term>
<term>Constant tracers</term>
<term>Correlation coefficients</term>
<term>Decadal variability</term>
<term>Density field</term>
<term>Ezer</term>
<term>Final fields</term>
<term>General circulation</term>
<term>Geophys</term>
<term>Global prognostic simulation</term>
<term>Good agreement</term>
<term>Greatbatch</term>
<term>Gyre</term>
<term>Heat transport</term>
<term>Heat transports</term>
<term>Hydrographic data</term>
<term>Initial state</term>
<term>Interpentadal variability</term>
<term>Mellor</term>
<term>Methods show</term>
<term>Model configuration</term>
<term>Ocean circulation</term>
<term>Ocean model</term>
<term>Ocean modell</term>
<term>Pentadal</term>
<term>Pentadal fields</term>
<term>Poleward</term>
<term>Poleward heat transport</term>
<term>Prognostic</term>
<term>Salinity</term>
<term>Salinity data</term>
<term>Short prognostic</term>
<term>Simple methods</term>
<term>Subpolar</term>
<term>Subpolar gyre</term>
<term>Subpolar gyres</term>
<term>Subtropical</term>
<term>Subtropical gyre</term>
<term>Surface fluxes</term>
<term>Thermohaline</term>
<term>Thermohaline circulation</term>
<term>Thermohaline structure</term>
<term>Tracer equations</term>
<term>Variability</term>
<term>World ocean</term>
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<term>Anomaly</term>
<term>Atlantic circulation</term>
<term>Atlantic circulation variations</term>
<term>Atlantic ocean</term>
<term>Atlantic oscillation</term>
<term>Average surface fluxes</term>
<term>Barotropic</term>
<term>Barotropic streamfunction</term>
<term>Climatology</term>
<term>Constant tracers</term>
<term>Correlation coefficients</term>
<term>Decadal variability</term>
<term>Density field</term>
<term>Ezer</term>
<term>Final fields</term>
<term>General circulation</term>
<term>Geophys</term>
<term>Global prognostic simulation</term>
<term>Good agreement</term>
<term>Greatbatch</term>
<term>Gyre</term>
<term>Heat transport</term>
<term>Heat transports</term>
<term>Hydrographic data</term>
<term>Initial state</term>
<term>Interpentadal variability</term>
<term>Mellor</term>
<term>Methods show</term>
<term>Model configuration</term>
<term>Ocean circulation</term>
<term>Ocean model</term>
<term>Ocean modell</term>
<term>Pentadal</term>
<term>Pentadal fields</term>
<term>Poleward</term>
<term>Poleward heat transport</term>
<term>Prognostic</term>
<term>Salinity</term>
<term>Salinity data</term>
<term>Short prognostic</term>
<term>Simple methods</term>
<term>Subpolar</term>
<term>Subpolar gyre</term>
<term>Subpolar gyres</term>
<term>Subtropical</term>
<term>Subtropical gyre</term>
<term>Surface fluxes</term>
<term>Thermohaline</term>
<term>Thermohaline circulation</term>
<term>Thermohaline structure</term>
<term>Tracer equations</term>
<term>Variability</term>
<term>World ocean</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Climatologie</term>
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<front><div type="abstract">Low‐frequency variations of the large‐scale ocean circulation in the Atlantic are reconstructed from NODC pentadal anomalies of temperature and salinity from 1955 to 1998 based on hydrographic data, in addition to atmospheric reanalysis surface forcing. Diagnostic ocean circulations are estimated from simple methods using dynamical model integrations: namely diagnostic, robust diagnostic, and short prognostic. Mean transports of heat and mass are sensitive to the method and model configuration, but their decadal variability is much more coherent and does not depend explicitly on the variations of the surface forcing, its influence being imprinted in the thermohaline structure. Multidecadal variations are of the order of 20%, with large transports in the subpolar gyre in the early 1960's and mid 1990's, and low values in the mid 1970's. By reducing the influence of subgrid‐scale parameterizations and surface forcings, these methods offer alternatives to exhaustive GCM simulations.</div>
</front>
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Low‐frequency variations of the large‐scale ocean circulation and heat transport in the North Atlantic from 1955–1998 in situ temperature and salinity data

Low‐frequency variations of the large‐scale ocean circulation and heat transport in the North Atlantic from 1955–1998 in situ temperature and salinity data

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri