LeHavreV1, Main, Exploration, bibRecord, 000E58

Tidal and residual circulations in coupled restricted and leaky lagoons

Identifieur interne : 000E58 ( Main/Exploration ); précédent : 000E57; suivant : 000E59

Tidal and residual circulations in coupled restricted and leaky lagoons

Auteurs : Thomas Guyondet [Canada] ; Vladimir G. Koutitonsky [Canada]

Source :

Estuarine, coastal and shelf science : (Print) [ 0272-7714 ] ; 2008.

RBID : Pascal:08-0238108

Descripteurs français

Pascal (Inist)
- Marée, Lagune, Hydrodynamique, Morphologie, Asymétrie, Milieu saumâtre, Milieu marin, Canada, Golfe du Saint Laurent, Iles Madeleine.
Wicri :
- geographic : Canada.
- topic : Milieu marin.

English descriptors

KwdEn :
- Asymmetry, Brackish water environment, Canada, Coastal lagoon, Gulf of Saint Lawrence, Hydrodynamics, Magdalen Islands, Marine environment, Morphology, Tides.

Abstract

Finite element numerical modelling based on field data is used to study the tidal and tidally induced residual circulation dynamics of a coupled "restricted" and "leaky" coastal lagoon system located in the Magdalen Islands, Gulf of Saint-Lawrence. Havre-aux-Maisons Lagoon (HML) is of a "restricted" nature with a neutral inlet in terms of tidal asymmetry. Grande-Entrée Lagoon (GEL) is of a "leaky" nature with a marked ebb dominance at the inlet due to direct interactions between the main astronomical tidal constituents. The imbalance caused by the different tidal filtering characteristics of both inlets combines with the internal morphological asymmetries of the system to produce a residual throughflow from HML to GEL. The residual circulation is also characterized by strongest values at both inlets, very weak residual currents in HML deep basin and a dipole of residual eddies over the deeper areas of GEL. Further investigations including numerical tracer experiments will be necessary to achieve a full understanding of the long term circulation of this lagoonal system.

Affiliations:

Canada

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

to stream PascalFrancis, to step Corpus: 000135
to stream PascalFrancis, to step Curation: 000198
to stream PascalFrancis, to step Checkpoint: 000129
to stream Main, to step Merge: 000E69
to stream Main, to step Curation: 000E58

Le document en format XML

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<s2>Rimouski, QC G5L 3A1</s2>
<s3>CAN</s3>
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<country>Canada</country>
<wicri:noRegion>Rimouski, QC G5L 3A1</wicri:noRegion>
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<author><name sortKey="Koutitonsky, Vladimir G" sort="Koutitonsky, Vladimir G" uniqKey="Koutitonsky V" first="Vladimir G." last="Koutitonsky">Vladimir G. Koutitonsky</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institut des Sciences de la Mer de Rimouski (ISMER), Université du Québec à Rimouski, 310 Allée des Ursulines</s1>
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<s3>CAN</s3>
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<author><name sortKey="Koutitonsky, Vladimir G" sort="Koutitonsky, Vladimir G" uniqKey="Koutitonsky V" first="Vladimir G." last="Koutitonsky">Vladimir G. Koutitonsky</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Asymmetry</term>
<term>Brackish water environment</term>
<term>Canada</term>
<term>Coastal lagoon</term>
<term>Gulf of Saint Lawrence</term>
<term>Hydrodynamics</term>
<term>Magdalen Islands</term>
<term>Marine environment</term>
<term>Morphology</term>
<term>Tides</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Marée</term>
<term>Lagune</term>
<term>Hydrodynamique</term>
<term>Morphologie</term>
<term>Asymétrie</term>
<term>Milieu saumâtre</term>
<term>Milieu marin</term>
<term>Canada</term>
<term>Golfe du Saint Laurent</term>
<term>Iles Madeleine</term>
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<keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>Canada</term>
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<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Milieu marin</term>
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<front><div type="abstract" xml:lang="en">Finite element numerical modelling based on field data is used to study the tidal and tidally induced residual circulation dynamics of a coupled "restricted" and "leaky" coastal lagoon system located in the Magdalen Islands, Gulf of Saint-Lawrence. Havre-aux-Maisons Lagoon (HML) is of a "restricted" nature with a neutral inlet in terms of tidal asymmetry. Grande-Entrée Lagoon (GEL) is of a "leaky" nature with a marked ebb dominance at the inlet due to direct interactions between the main astronomical tidal constituents. The imbalance caused by the different tidal filtering characteristics of both inlets combines with the internal morphological asymmetries of the system to produce a residual throughflow from HML to GEL. The residual circulation is also characterized by strongest values at both inlets, very weak residual currents in HML deep basin and a dipole of residual eddies over the deeper areas of GEL. Further investigations including numerical tracer experiments will be necessary to achieve a full understanding of the long term circulation of this lagoonal system.</div>
</front>
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<affiliations><list><country><li>Canada</li>
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<tree><country name="Canada"><noRegion><name sortKey="Guyondet, Thomas" sort="Guyondet, Thomas" uniqKey="Guyondet T" first="Thomas" last="Guyondet">Thomas Guyondet</name>
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<name sortKey="Koutitonsky, Vladimir G" sort="Koutitonsky, Vladimir G" uniqKey="Koutitonsky V" first="Vladimir G." last="Koutitonsky">Vladimir G. Koutitonsky</name>
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Tidal and residual circulations in coupled restricted and leaky lagoons

Tidal and residual circulations in coupled restricted and leaky lagoons

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