Mixed layer heat budget in the Iceland Basin from Argo
International audience The mixed layer processes that govern the mode water properties in the Iceland Basin are quantified through a mixed layer heat budget from Argo data collected over 2001-2007. This budget includes the mixed layer heat content variation, the surface heat fluxes, and the Ekman co...
Published in: | Journal of Geophysical Research: Oceans |
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Main Authors: | , , , |
Other Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2010
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Online Access: | https://hal.science/hal-00581587 https://hal.science/hal-00581587/document https://hal.science/hal-00581587/file/Journal%20of%20Geophysical%20Research%20Oceans%20-%202010%20-%20de%20Boiss%20son%20-%20Mixed%20layer%20heat%20budget%20in%20the%20Iceland%20Basin%20from%20Argo.pdf https://doi.org/10.1029/2010JC006283 |
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ftunivbrest:oai:HAL:hal-00581587v1 |
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openpolar |
institution |
Open Polar |
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Université de Bretagne Occidentale: HAL |
op_collection_id |
ftunivbrest |
language |
English |
topic |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography de Boisseson, E. Thierry, V. Mercier, H. Caniaux, G. Mixed layer heat budget in the Iceland Basin from Argo |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience The mixed layer processes that govern the mode water properties in the Iceland Basin are quantified through a mixed layer heat budget from Argo data collected over 2001-2007. This budget includes the mixed layer heat content variation, the surface heat fluxes, and the Ekman contribution to advection. The geostrophic advection cannot be directly estimated from Argo data but, following previous works, an ad hoc procedure is implemented to take it into account. The resulting annual budget is closed within the error bar but this closure hides some compensation between the summer and the winter residuals (−16 ± 9 W m−2 and 21 ± 26 W m−2, respectively). A similar heat budget built by using colocated Argo floats in the 1/4° DRAKKAR ORCA025‐G70fo simulation over 2001-2007 shows seasonal patterns similar to the Argo‐based budget. An Eulerian model‐based heat budget in the Iceland Basin shows that the mixed layer heat content variation is driven by the air‐sea fluxes, the advection, and the vertical diffusion. The indirect estimate of the latter in a new Argo‐based budget leads to a summer residual of 2 ± 11 W m−2 and to an unchanged winter residual. The summer and winter standard errors of the Argo‐based budget (11 and 26 W m‐2, respectively) reflect the limited sampling of the Iceland Basin by Argo floats. Sensitivity experiments show that such errors would be reduced by a denser Argo sampling. |
author2 |
Laboratoire de physique des océans (LPO) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Centre national de recherches météorologiques (CNRM) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
de Boisseson, E. Thierry, V. Mercier, H. Caniaux, G. |
author_facet |
de Boisseson, E. Thierry, V. Mercier, H. Caniaux, G. |
author_sort |
de Boisseson, E. |
title |
Mixed layer heat budget in the Iceland Basin from Argo |
title_short |
Mixed layer heat budget in the Iceland Basin from Argo |
title_full |
Mixed layer heat budget in the Iceland Basin from Argo |
title_fullStr |
Mixed layer heat budget in the Iceland Basin from Argo |
title_full_unstemmed |
Mixed layer heat budget in the Iceland Basin from Argo |
title_sort |
mixed layer heat budget in the iceland basin from argo |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.science/hal-00581587 https://hal.science/hal-00581587/document https://hal.science/hal-00581587/file/Journal%20of%20Geophysical%20Research%20Oceans%20-%202010%20-%20de%20Boiss%20son%20-%20Mixed%20layer%20heat%20budget%20in%20the%20Iceland%20Basin%20from%20Argo.pdf https://doi.org/10.1029/2010JC006283 |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
ISSN: 2169-9275 EISSN: 2169-9291 Journal of Geophysical Research. Oceans https://hal.science/hal-00581587 Journal of Geophysical Research. Oceans, 2010, 115, pp.C10055. ⟨10.1029/2010JC006283⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2010JC006283 hal-00581587 https://hal.science/hal-00581587 https://hal.science/hal-00581587/document https://hal.science/hal-00581587/file/Journal%20of%20Geophysical%20Research%20Oceans%20-%202010%20-%20de%20Boiss%20son%20-%20Mixed%20layer%20heat%20budget%20in%20the%20Iceland%20Basin%20from%20Argo.pdf doi:10.1029/2010JC006283 |
op_rights |
http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2010JC006283 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
115 |
container_issue |
C10 |
_version_ |
1785585504403587072 |
spelling |
ftunivbrest:oai:HAL:hal-00581587v1 2023-12-17T10:32:01+01:00 Mixed layer heat budget in the Iceland Basin from Argo de Boisseson, E. Thierry, V. Mercier, H. Caniaux, G. Laboratoire de physique des océans (LPO) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Centre national de recherches météorologiques (CNRM) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) 2010 https://hal.science/hal-00581587 https://hal.science/hal-00581587/document https://hal.science/hal-00581587/file/Journal%20of%20Geophysical%20Research%20Oceans%20-%202010%20-%20de%20Boiss%20son%20-%20Mixed%20layer%20heat%20budget%20in%20the%20Iceland%20Basin%20from%20Argo.pdf https://doi.org/10.1029/2010JC006283 en eng HAL CCSD Wiley-Blackwell info:eu-repo/semantics/altIdentifier/doi/10.1029/2010JC006283 hal-00581587 https://hal.science/hal-00581587 https://hal.science/hal-00581587/document https://hal.science/hal-00581587/file/Journal%20of%20Geophysical%20Research%20Oceans%20-%202010%20-%20de%20Boiss%20son%20-%20Mixed%20layer%20heat%20budget%20in%20the%20Iceland%20Basin%20from%20Argo.pdf doi:10.1029/2010JC006283 http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess ISSN: 2169-9275 EISSN: 2169-9291 Journal of Geophysical Research. Oceans https://hal.science/hal-00581587 Journal of Geophysical Research. Oceans, 2010, 115, pp.C10055. ⟨10.1029/2010JC006283⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2010 ftunivbrest https://doi.org/10.1029/2010JC006283 2023-11-21T23:39:33Z International audience The mixed layer processes that govern the mode water properties in the Iceland Basin are quantified through a mixed layer heat budget from Argo data collected over 2001-2007. This budget includes the mixed layer heat content variation, the surface heat fluxes, and the Ekman contribution to advection. The geostrophic advection cannot be directly estimated from Argo data but, following previous works, an ad hoc procedure is implemented to take it into account. The resulting annual budget is closed within the error bar but this closure hides some compensation between the summer and the winter residuals (−16 ± 9 W m−2 and 21 ± 26 W m−2, respectively). A similar heat budget built by using colocated Argo floats in the 1/4° DRAKKAR ORCA025‐G70fo simulation over 2001-2007 shows seasonal patterns similar to the Argo‐based budget. An Eulerian model‐based heat budget in the Iceland Basin shows that the mixed layer heat content variation is driven by the air‐sea fluxes, the advection, and the vertical diffusion. The indirect estimate of the latter in a new Argo‐based budget leads to a summer residual of 2 ± 11 W m−2 and to an unchanged winter residual. The summer and winter standard errors of the Argo‐based budget (11 and 26 W m‐2, respectively) reflect the limited sampling of the Iceland Basin by Argo floats. Sensitivity experiments show that such errors would be reduced by a denser Argo sampling. Article in Journal/Newspaper Iceland Université de Bretagne Occidentale: HAL Journal of Geophysical Research: Oceans 115 C10 |