Towards an understanding of Labrador Sea salinity drift in eddy-permitting simulations
Model drift in the Labrador Sea in eddy permitting model simulations is examined using a series of configurations based on the NEMO numerical framework. There are two phases of the drift that we can identify, beginning with an initial rapid 3-year period, associated with the adjustment of the model...
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ftoceanrep:oai:oceanrep.geomar.de:10056 2023-05-15T16:03:51+02:00 Towards an understanding of Labrador Sea salinity drift in eddy-permitting simulations Rattan, Sanjay Myers, Paul G. Treguier, Anne-Marie Theetten, Sebastien Biastoch, Arne Böning, Claus W. 2010 text https://oceanrep.geomar.de/id/eprint/10056/ https://oceanrep.geomar.de/id/eprint/10056/1/Towards.pdf https://oceanrep.geomar.de/id/eprint/10056/2/tables.csv https://doi.org/10.1016/j.ocemod.2010.06.007 en eng Elsevier https://oceanrep.geomar.de/id/eprint/10056/1/Towards.pdf https://oceanrep.geomar.de/id/eprint/10056/2/tables.csv Rattan, S., Myers, P. G., Treguier, A. M., Theetten, S., Biastoch, A. and Böning, C. W. (2010) Towards an understanding of Labrador Sea salinity drift in eddy-permitting simulations. Ocean Modelling, 35 (1-2). pp. 77-88. DOI 10.1016/j.ocemod.2010.06.007 <https://doi.org/10.1016/j.ocemod.2010.06.007>. doi:10.1016/j.ocemod.2010.06.007 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2010 ftoceanrep https://doi.org/10.1016/j.ocemod.2010.06.007 2023-04-07T14:57:56Z Model drift in the Labrador Sea in eddy permitting model simulations is examined using a series of configurations based on the NEMO numerical framework. There are two phases of the drift that we can identify, beginning with an initial rapid 3-year period, associated with the adjustment of the model from its initial conditions followed by an extended model drift/adjustment that continued for at least another decade. The drift controlled the model salinity in the Labrador Sea, over-riding the variability. Thus, during this initial period, similar behavior was observed between the inter-annually forced experiments as with perpetual year forcing. The results also did not depend on whether the configuration was global, or regional North Atlantic Ocean. The inclusion of an explicit sea-ice component did not seem to have a significant impact on the interior drift. Clear cut evidence for the drift having an advective nature was shown, based on two separate currents/flow regimes. We find, as expected, the representation of freshwater in the sub-polar gyre’s boundary currents important. But this study also points out another, equally important process and pathway: the input of high salinity mode water from the subtropical North Atlantic. The advective regime is dependent on the details of the model, such as the representation of the freshwater transport in the model’s East Greenland Current being very sensitive to the strength of the local sea surface salinity restoring (and the underlying field that the model is being restored to). Article in Journal/Newspaper East Greenland east greenland current Greenland Labrador Sea North Atlantic Sea ice OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Greenland Ocean Modelling 35 1-2 77 88 |
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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 |
Model drift in the Labrador Sea in eddy permitting model simulations is examined using a series of configurations based on the NEMO numerical framework. There are two phases of the drift that we can identify, beginning with an initial rapid 3-year period, associated with the adjustment of the model from its initial conditions followed by an extended model drift/adjustment that continued for at least another decade. The drift controlled the model salinity in the Labrador Sea, over-riding the variability. Thus, during this initial period, similar behavior was observed between the inter-annually forced experiments as with perpetual year forcing. The results also did not depend on whether the configuration was global, or regional North Atlantic Ocean. The inclusion of an explicit sea-ice component did not seem to have a significant impact on the interior drift. Clear cut evidence for the drift having an advective nature was shown, based on two separate currents/flow regimes. We find, as expected, the representation of freshwater in the sub-polar gyre’s boundary currents important. But this study also points out another, equally important process and pathway: the input of high salinity mode water from the subtropical North Atlantic. The advective regime is dependent on the details of the model, such as the representation of the freshwater transport in the model’s East Greenland Current being very sensitive to the strength of the local sea surface salinity restoring (and the underlying field that the model is being restored to). |
format |
Article in Journal/Newspaper |
author |
Rattan, Sanjay Myers, Paul G. Treguier, Anne-Marie Theetten, Sebastien Biastoch, Arne Böning, Claus W. |
spellingShingle |
Rattan, Sanjay Myers, Paul G. Treguier, Anne-Marie Theetten, Sebastien Biastoch, Arne Böning, Claus W. Towards an understanding of Labrador Sea salinity drift in eddy-permitting simulations |
author_facet |
Rattan, Sanjay Myers, Paul G. Treguier, Anne-Marie Theetten, Sebastien Biastoch, Arne Böning, Claus W. |
author_sort |
Rattan, Sanjay |
title |
Towards an understanding of Labrador Sea salinity drift in eddy-permitting simulations |
title_short |
Towards an understanding of Labrador Sea salinity drift in eddy-permitting simulations |
title_full |
Towards an understanding of Labrador Sea salinity drift in eddy-permitting simulations |
title_fullStr |
Towards an understanding of Labrador Sea salinity drift in eddy-permitting simulations |
title_full_unstemmed |
Towards an understanding of Labrador Sea salinity drift in eddy-permitting simulations |
title_sort |
towards an understanding of labrador sea salinity drift in eddy-permitting simulations |
publisher |
Elsevier |
publishDate |
2010 |
url |
https://oceanrep.geomar.de/id/eprint/10056/ https://oceanrep.geomar.de/id/eprint/10056/1/Towards.pdf https://oceanrep.geomar.de/id/eprint/10056/2/tables.csv https://doi.org/10.1016/j.ocemod.2010.06.007 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
East Greenland east greenland current Greenland Labrador Sea North Atlantic Sea ice |
genre_facet |
East Greenland east greenland current Greenland Labrador Sea North Atlantic Sea ice |
op_relation |
https://oceanrep.geomar.de/id/eprint/10056/1/Towards.pdf https://oceanrep.geomar.de/id/eprint/10056/2/tables.csv Rattan, S., Myers, P. G., Treguier, A. M., Theetten, S., Biastoch, A. and Böning, C. W. (2010) Towards an understanding of Labrador Sea salinity drift in eddy-permitting simulations. Ocean Modelling, 35 (1-2). pp. 77-88. DOI 10.1016/j.ocemod.2010.06.007 <https://doi.org/10.1016/j.ocemod.2010.06.007>. doi:10.1016/j.ocemod.2010.06.007 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.ocemod.2010.06.007 |
container_title |
Ocean Modelling |
container_volume |
35 |
container_issue |
1-2 |
container_start_page |
77 |
op_container_end_page |
88 |
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1766399539873316864 |