Summer interactions between weather regimes and surface ocean in the North-Atlantic region
International audience This study aims at understanding the summer ocean-atmosphere interactions in the North Atlantic European region on intraseasonal timescales. The CNRMOM1d ocean model is forced with ERA40 (ECMWF Re-Analysis) surface fluxes with a 1-h frequency in solar heat flux (6 h for the ot...
Published in: | Climate Dynamics |
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Main Authors: | , , , , , |
Other Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2008
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Online Access: | https://meteofrance.hal.science/meteo-00353283 https://doi.org/10.1007/s00382-008-0491-6 |
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ftinsu:oai:HAL:meteo-00353283v1 |
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Open Polar |
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Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] [SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] [SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Guemas, Virginie Salas-Mélia, David Kageyama, Masa Giordani, Hervé Voldoire, Aurore Sanchez-Gomez, Emilia Summer interactions between weather regimes and surface ocean in the North-Atlantic region |
topic_facet |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] [SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience This study aims at understanding the summer ocean-atmosphere interactions in the North Atlantic European region on intraseasonal timescales. The CNRMOM1d ocean model is forced with ERA40 (ECMWF Re-Analysis) surface fluxes with a 1-h frequency in solar heat flux (6 h for the other forcing fields) over the 1959–2001 period. The model has 124 vertical levels with a vertical resolution of 1 m near the surface and 500 m at the bottom. This ocean forced experiment is used to assess the impact of the North Atlantic weather regimes on the surface ocean. Composites of sea surface temperature (SST) anomalies associated with each weather regime are computed and the mechanisms explaining these anomalies are investigated. Then, the SST anomalies related to each weather regime in the oceanforced experiment are prescribed to the ARPEGE Atmosphere General Circulation Model. We show that the interaction with the surface ocean induces a positive feedback on the persistence of the Blocking regime, a negative feedback on the persistence of the NAO-regime and favours the transition from the Atlantic Ridge regime to the NAO-regime and from the Atlantic Low regime toward the Blocking regime. |
author2 |
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) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Modélisation du climat (CLIM) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) ANR-17-MPGA-0003,ASET,Atmosphere - Sea ice Exchanges and Teleconections(2017) |
format |
Article in Journal/Newspaper |
author |
Guemas, Virginie Salas-Mélia, David Kageyama, Masa Giordani, Hervé Voldoire, Aurore Sanchez-Gomez, Emilia |
author_facet |
Guemas, Virginie Salas-Mélia, David Kageyama, Masa Giordani, Hervé Voldoire, Aurore Sanchez-Gomez, Emilia |
author_sort |
Guemas, Virginie |
title |
Summer interactions between weather regimes and surface ocean in the North-Atlantic region |
title_short |
Summer interactions between weather regimes and surface ocean in the North-Atlantic region |
title_full |
Summer interactions between weather regimes and surface ocean in the North-Atlantic region |
title_fullStr |
Summer interactions between weather regimes and surface ocean in the North-Atlantic region |
title_full_unstemmed |
Summer interactions between weather regimes and surface ocean in the North-Atlantic region |
title_sort |
summer interactions between weather regimes and surface ocean in the north-atlantic region |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://meteofrance.hal.science/meteo-00353283 https://doi.org/10.1007/s00382-008-0491-6 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 0930-7575 EISSN: 1432-0894 Climate Dynamics https://meteofrance.hal.science/meteo-00353283 Climate Dynamics, 2008, pp.20 Pages. ⟨10.1007/s00382-008-0491-6⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00382-008-0491-6 meteo-00353283 https://meteofrance.hal.science/meteo-00353283 doi:10.1007/s00382-008-0491-6 |
op_doi |
https://doi.org/10.1007/s00382-008-0491-6 |
container_title |
Climate Dynamics |
container_volume |
34 |
container_issue |
4 |
container_start_page |
527 |
op_container_end_page |
546 |
_version_ |
1797587963267252224 |
spelling |
ftinsu:oai:HAL:meteo-00353283v1 2024-04-28T08:29:55+00:00 Summer interactions between weather regimes and surface ocean in the North-Atlantic region Guemas, Virginie Salas-Mélia, David Kageyama, Masa Giordani, Hervé Voldoire, Aurore Sanchez-Gomez, Emilia 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) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Modélisation du climat (CLIM) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) ANR-17-MPGA-0003,ASET,Atmosphere - Sea ice Exchanges and Teleconections(2017) 2008 https://meteofrance.hal.science/meteo-00353283 https://doi.org/10.1007/s00382-008-0491-6 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00382-008-0491-6 meteo-00353283 https://meteofrance.hal.science/meteo-00353283 doi:10.1007/s00382-008-0491-6 ISSN: 0930-7575 EISSN: 1432-0894 Climate Dynamics https://meteofrance.hal.science/meteo-00353283 Climate Dynamics, 2008, pp.20 Pages. ⟨10.1007/s00382-008-0491-6⟩ [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] [SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2008 ftinsu https://doi.org/10.1007/s00382-008-0491-6 2024-04-05T00:35:13Z International audience This study aims at understanding the summer ocean-atmosphere interactions in the North Atlantic European region on intraseasonal timescales. The CNRMOM1d ocean model is forced with ERA40 (ECMWF Re-Analysis) surface fluxes with a 1-h frequency in solar heat flux (6 h for the other forcing fields) over the 1959–2001 period. The model has 124 vertical levels with a vertical resolution of 1 m near the surface and 500 m at the bottom. This ocean forced experiment is used to assess the impact of the North Atlantic weather regimes on the surface ocean. Composites of sea surface temperature (SST) anomalies associated with each weather regime are computed and the mechanisms explaining these anomalies are investigated. Then, the SST anomalies related to each weather regime in the oceanforced experiment are prescribed to the ARPEGE Atmosphere General Circulation Model. We show that the interaction with the surface ocean induces a positive feedback on the persistence of the Blocking regime, a negative feedback on the persistence of the NAO-regime and favours the transition from the Atlantic Ridge regime to the NAO-regime and from the Atlantic Low regime toward the Blocking regime. Article in Journal/Newspaper North Atlantic Institut national des sciences de l'Univers: HAL-INSU Climate Dynamics 34 4 527 546 |