Climate change impact on waves in the Bay of Biscay, France
International audience The knowledge of offshore and coastal wave climate evolution towards the end of the twenty-first century is particularly important for human activities in a region such as the Bay of Biscay and the French Atlantic coast. Using dynamical downscaling, a high spatial resolution d...
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ftunivnantes:oai:HAL:hal-00675807v1 2023-05-15T17:34:58+02:00 Climate change impact on waves in the Bay of Biscay, France Charles, Elodie Idier, Déborah Delecluse, Pascale Déqué, Michel Le Cozannet, Gonéri Bureau de Recherches Géologiques et Minières (BRGM) (BRGM) 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 Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-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 Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-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) Meteo-France CNRM AXA Research Fund 2012 https://hal-brgm.archives-ouvertes.fr/hal-00675807 https://doi.org/10.1007/s10236-012-0534-8 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s10236-012-0534-8 hal-00675807 https://hal-brgm.archives-ouvertes.fr/hal-00675807 doi:10.1007/s10236-012-0534-8 ISSN: 1616-7341 EISSN: 1616-7228 Ocean Dynamics https://hal-brgm.archives-ouvertes.fr/hal-00675807 Ocean Dynamics, 2012, pp.ODYN-D-11-00186R1. ⟨10.1007/s10236-012-0534-8⟩ Climate change wave climate Dynamical downscaling Bay of Biscay [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2012 ftunivnantes https://doi.org/10.1007/s10236-012-0534-8 2023-02-22T00:12:50Z International audience The knowledge of offshore and coastal wave climate evolution towards the end of the twenty-first century is particularly important for human activities in a region such as the Bay of Biscay and the French Atlantic coast. Using dynamical downscaling, a high spatial resolution dataset of wave conditions in the Bay of Biscay is built for three future greenhouse gases emission scenarios. Projected wave heights, periods and directions are analysed at regional scale and more thoroughly at two buoys positions, offshore and along the coast. A general decrease of wave heights is identified (up to -20 cm during summer within the Bay of Biscay), as well as a clockwise shift of summer waves and winter swell coming from direction. The relation between those changes and wind changes is investigated and highlights a complex association of processes at several spatial scales. For instance, the intensification and the north-eastward shift of strong wind core in the North Atlantic Ocean explain the clockwise shift of winter swell directions. During summer, the decrease of the westerly winds in the Bay of Biscay explains the clockwise shift and the wave height decrease of wind sea and intermediate waves. Finally, the analysis reveals that the offshore changes in the wave height and the wave period as well as the clockwise shift in the wave direction continue toward the coast. This wave height decrease result is consistent with other regional projections and would impact the coastal dynamics by reducing the longshore sediment flux. Article in Journal/Newspaper North Atlantic Université de Nantes: HAL-UNIV-NANTES Ocean Dynamics 62 6 831 848 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Climate change wave climate Dynamical downscaling Bay of Biscay [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
Climate change wave climate Dynamical downscaling Bay of Biscay [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Charles, Elodie Idier, Déborah Delecluse, Pascale Déqué, Michel Le Cozannet, Gonéri Climate change impact on waves in the Bay of Biscay, France |
topic_facet |
Climate change wave climate Dynamical downscaling Bay of Biscay [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience The knowledge of offshore and coastal wave climate evolution towards the end of the twenty-first century is particularly important for human activities in a region such as the Bay of Biscay and the French Atlantic coast. Using dynamical downscaling, a high spatial resolution dataset of wave conditions in the Bay of Biscay is built for three future greenhouse gases emission scenarios. Projected wave heights, periods and directions are analysed at regional scale and more thoroughly at two buoys positions, offshore and along the coast. A general decrease of wave heights is identified (up to -20 cm during summer within the Bay of Biscay), as well as a clockwise shift of summer waves and winter swell coming from direction. The relation between those changes and wind changes is investigated and highlights a complex association of processes at several spatial scales. For instance, the intensification and the north-eastward shift of strong wind core in the North Atlantic Ocean explain the clockwise shift of winter swell directions. During summer, the decrease of the westerly winds in the Bay of Biscay explains the clockwise shift and the wave height decrease of wind sea and intermediate waves. Finally, the analysis reveals that the offshore changes in the wave height and the wave period as well as the clockwise shift in the wave direction continue toward the coast. This wave height decrease result is consistent with other regional projections and would impact the coastal dynamics by reducing the longshore sediment flux. |
author2 |
Bureau de Recherches Géologiques et Minières (BRGM) (BRGM) 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 Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-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 Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-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) Meteo-France CNRM AXA Research Fund |
format |
Article in Journal/Newspaper |
author |
Charles, Elodie Idier, Déborah Delecluse, Pascale Déqué, Michel Le Cozannet, Gonéri |
author_facet |
Charles, Elodie Idier, Déborah Delecluse, Pascale Déqué, Michel Le Cozannet, Gonéri |
author_sort |
Charles, Elodie |
title |
Climate change impact on waves in the Bay of Biscay, France |
title_short |
Climate change impact on waves in the Bay of Biscay, France |
title_full |
Climate change impact on waves in the Bay of Biscay, France |
title_fullStr |
Climate change impact on waves in the Bay of Biscay, France |
title_full_unstemmed |
Climate change impact on waves in the Bay of Biscay, France |
title_sort |
climate change impact on waves in the bay of biscay, france |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal-brgm.archives-ouvertes.fr/hal-00675807 https://doi.org/10.1007/s10236-012-0534-8 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 1616-7341 EISSN: 1616-7228 Ocean Dynamics https://hal-brgm.archives-ouvertes.fr/hal-00675807 Ocean Dynamics, 2012, pp.ODYN-D-11-00186R1. ⟨10.1007/s10236-012-0534-8⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10236-012-0534-8 hal-00675807 https://hal-brgm.archives-ouvertes.fr/hal-00675807 doi:10.1007/s10236-012-0534-8 |
op_doi |
https://doi.org/10.1007/s10236-012-0534-8 |
container_title |
Ocean Dynamics |
container_volume |
62 |
container_issue |
6 |
container_start_page |
831 |
op_container_end_page |
848 |
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1766133971775651840 |