Contributions of atmospheric forcing and chaotic ocean variability to regional sea level trends over 1993‐2015
International audience A global ¼° ocean/sea-ice 50-member ensemble simulation is analyzed to disentangle the imprints of the atmospheric forcing and the chaotic ocean variability on regional sea level trends over the satellite altimetry period. We find that the chaotic ocean variability may mask at...
Published in: | Geophysical Research Letters |
---|---|
Main Authors: | , , , , , , |
Other Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2018
|
Subjects: | |
Online Access: | https://hal.science/hal-02003015 https://hal.science/hal-02003015/document https://hal.science/hal-02003015/file/llovel2018.pdf https://doi.org/10.1029/2018gl080838 |
id |
ftmeteofrance:oai:HAL:hal-02003015v1 |
---|---|
record_format |
openpolar |
spelling |
ftmeteofrance:oai:HAL:hal-02003015v1 2024-06-09T07:49:29+00:00 Contributions of atmospheric forcing and chaotic ocean variability to regional sea level trends over 1993‐2015 Llovel, W. Penduff, Thierry Meyssignac, Benoit Molines, Jean‐marc Terray, Laurent Bessières, Laurent Barnier, Bernard Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) 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)-Observatoire Midi-Pyrénées (OMP) 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)-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) Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ) Centre Européen de Recherche et de Formation Avancée en Calcul Scientifique (CERFACS) 2018 https://hal.science/hal-02003015 https://hal.science/hal-02003015/document https://hal.science/hal-02003015/file/llovel2018.pdf https://doi.org/10.1029/2018gl080838 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2018gl080838 hal-02003015 https://hal.science/hal-02003015 https://hal.science/hal-02003015/document https://hal.science/hal-02003015/file/llovel2018.pdf doi:10.1029/2018gl080838 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-02003015 Geophysical Research Letters, 2018, 45 (24), pp.13,405-13,413. ⟨10.1029/2018gl080838⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2018 ftmeteofrance https://doi.org/10.1029/2018gl080838 2024-05-16T11:58:04Z International audience A global ¼° ocean/sea-ice 50-member ensemble simulation is analyzed to disentangle the imprints of the atmospheric forcing and the chaotic ocean variability on regional sea level trends over the satellite altimetry period. We find that the chaotic ocean variability may mask atmospherically forced regional sea level trends over 38% of the global ocean area from 1993 to 2015, and over 47% of this area from 2005 to 2015. These regions are located in the western boundary currents, in the Southern Ocean and in the subtropical gyres. While these results do not question the anthropogenic origin of global mean sea level rise, they give new insights into the intrinsically oceanic versus atmospheric forcing of regional sea level trends and provide new constraints on the measurement time required to attribute regional sea level trends to the atmospheric forcing or to climate change. Article in Journal/Newspaper Sea ice Southern Ocean Météo-France: HAL Southern Ocean Geophysical Research Letters 45 24 |
institution |
Open Polar |
collection |
Météo-France: HAL |
op_collection_id |
ftmeteofrance |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Llovel, W. Penduff, Thierry Meyssignac, Benoit Molines, Jean‐marc Terray, Laurent Bessières, Laurent Barnier, Bernard Contributions of atmospheric forcing and chaotic ocean variability to regional sea level trends over 1993‐2015 |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience A global ¼° ocean/sea-ice 50-member ensemble simulation is analyzed to disentangle the imprints of the atmospheric forcing and the chaotic ocean variability on regional sea level trends over the satellite altimetry period. We find that the chaotic ocean variability may mask atmospherically forced regional sea level trends over 38% of the global ocean area from 1993 to 2015, and over 47% of this area from 2005 to 2015. These regions are located in the western boundary currents, in the Southern Ocean and in the subtropical gyres. While these results do not question the anthropogenic origin of global mean sea level rise, they give new insights into the intrinsically oceanic versus atmospheric forcing of regional sea level trends and provide new constraints on the measurement time required to attribute regional sea level trends to the atmospheric forcing or to climate change. |
author2 |
Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) 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)-Observatoire Midi-Pyrénées (OMP) 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)-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) Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ) Centre Européen de Recherche et de Formation Avancée en Calcul Scientifique (CERFACS) |
format |
Article in Journal/Newspaper |
author |
Llovel, W. Penduff, Thierry Meyssignac, Benoit Molines, Jean‐marc Terray, Laurent Bessières, Laurent Barnier, Bernard |
author_facet |
Llovel, W. Penduff, Thierry Meyssignac, Benoit Molines, Jean‐marc Terray, Laurent Bessières, Laurent Barnier, Bernard |
author_sort |
Llovel, W. |
title |
Contributions of atmospheric forcing and chaotic ocean variability to regional sea level trends over 1993‐2015 |
title_short |
Contributions of atmospheric forcing and chaotic ocean variability to regional sea level trends over 1993‐2015 |
title_full |
Contributions of atmospheric forcing and chaotic ocean variability to regional sea level trends over 1993‐2015 |
title_fullStr |
Contributions of atmospheric forcing and chaotic ocean variability to regional sea level trends over 1993‐2015 |
title_full_unstemmed |
Contributions of atmospheric forcing and chaotic ocean variability to regional sea level trends over 1993‐2015 |
title_sort |
contributions of atmospheric forcing and chaotic ocean variability to regional sea level trends over 1993‐2015 |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.science/hal-02003015 https://hal.science/hal-02003015/document https://hal.science/hal-02003015/file/llovel2018.pdf https://doi.org/10.1029/2018gl080838 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Sea ice Southern Ocean |
genre_facet |
Sea ice Southern Ocean |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-02003015 Geophysical Research Letters, 2018, 45 (24), pp.13,405-13,413. ⟨10.1029/2018gl080838⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2018gl080838 hal-02003015 https://hal.science/hal-02003015 https://hal.science/hal-02003015/document https://hal.science/hal-02003015/file/llovel2018.pdf doi:10.1029/2018gl080838 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2018gl080838 |
container_title |
Geophysical Research Letters |
container_volume |
45 |
container_issue |
24 |
_version_ |
1801382092416745472 |