Present wave climate in the Bay of Biscay: spatiotemporal variability and trends from 1958 to 2001
International audience Climate change impacts on wave conditions can increase the risk of offshore and coastal hazards. The present paper investigates wave climate multi-decadal trends and inter-annual variability in the Bay of Biscay during the past decades (1958-2001). Wave fields are computed wit...
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Online Access: | https://hal-brgm.archives-ouvertes.fr/hal-00647448 https://hal-brgm.archives-ouvertes.fr/hal-00647448/document https://hal-brgm.archives-ouvertes.fr/hal-00647448/file/%5B15200442%20-%20Journal%20of%20Climate%5D%20Present%20Wave%20Climate%20in%20the%20Bay%20of%20Biscay%20Spatiotemporal%20Variability%20and%20Trends%20from%201958%20to%202001.pdf https://doi.org/10.1175/JCLI-D-11-00086.1 |
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ftccsdartic:oai:HAL:hal-00647448v1 2023-05-15T17:35:18+02:00 Present wave climate in the Bay of Biscay: spatiotemporal variability and trends from 1958 to 2001 Charles, Elodie Idier, Déborah Thiebot, Jérôme Le Cozannet, Gonéri Pedreros, Rodrigo Ardhuin, Fabrice Planton, Serge Bureau de Recherches Géologiques et Minières (BRGM) (BRGM) Laboratoire d'Océanographie Spatiale (LOS) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Groupe d'étude de l'atmosphère météorologique (CNRM-GAME) Institut national des sciences de l'Univers (INSU - CNRS)-Météo France-Centre National de la Recherche Scientifique (CNRS) CNRM IFREMER 2012 https://hal-brgm.archives-ouvertes.fr/hal-00647448 https://hal-brgm.archives-ouvertes.fr/hal-00647448/document https://hal-brgm.archives-ouvertes.fr/hal-00647448/file/%5B15200442%20-%20Journal%20of%20Climate%5D%20Present%20Wave%20Climate%20in%20the%20Bay%20of%20Biscay%20Spatiotemporal%20Variability%20and%20Trends%20from%201958%20to%202001.pdf https://doi.org/10.1175/JCLI-D-11-00086.1 en eng HAL CCSD American Meteorological Society info:eu-repo/semantics/altIdentifier/doi/10.1175/JCLI-D-11-00086.1 hal-00647448 https://hal-brgm.archives-ouvertes.fr/hal-00647448 https://hal-brgm.archives-ouvertes.fr/hal-00647448/document https://hal-brgm.archives-ouvertes.fr/hal-00647448/file/%5B15200442%20-%20Journal%20of%20Climate%5D%20Present%20Wave%20Climate%20in%20the%20Bay%20of%20Biscay%20Spatiotemporal%20Variability%20and%20Trends%20from%201958%20to%202001.pdf doi:10.1175/JCLI-D-11-00086.1 info:eu-repo/semantics/OpenAccess ISSN: 0894-8755 EISSN: 1520-0442 Journal of Climate https://hal-brgm.archives-ouvertes.fr/hal-00647448 Journal of Climate, American Meteorological Society, 2012, 25 (6), pp.2020-2039. ⟨10.1175/JCLI-D-11-00086.1⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2012 ftccsdartic https://doi.org/10.1175/JCLI-D-11-00086.1 2021-10-23T23:52:14Z International audience Climate change impacts on wave conditions can increase the risk of offshore and coastal hazards. The present paper investigates wave climate multi-decadal trends and inter-annual variability in the Bay of Biscay during the past decades (1958-2001). Wave fields are computed with a wave modelling system based on the WAVEWATCH III code and forced by ERA-40 reanalysis wind fields. It provides both an extended spatiotemporal domain and a refined spatial resolution over the Bay of Biscay. The validation of the wave model is based on eleven buoys, allowing the use of computed wave fields in the analysis of mean and extreme wave height trends and variability. Wave height, period and direction are examined for a large array of wave conditions (by seasons, high percentiles of wave heights, different periods). Several trends on recent periods are identified, notably an increase of summer significant wave height, a southerly shift of autumn extreme wave direction and a northerly shift of spring extreme wave direction. Wave fields exhibit high inter-annual variability, with a normalized standard deviation of seasonal wave height greater than 15% in wintertime. The relationship with northern hemisphere teleconnection patterns is investigated at regional scale, especially along the coast. It highlights a strong correlation between local wave conditions and the North Atlantic Oscillation and the East Atlantic pattern indices. This relationship is further investigated at local scale with a new method based on bivariate diagrams, allowing the identification of the type of waves (swell, storm, intermediate waves) impacted. These results are discussed in terms of comparison with previous studies and coastal risk implications. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Journal of Climate 25 6 2020 2039 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
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 Charles, Elodie Idier, Déborah Thiebot, Jérôme Le Cozannet, Gonéri Pedreros, Rodrigo Ardhuin, Fabrice Planton, Serge Present wave climate in the Bay of Biscay: spatiotemporal variability and trends from 1958 to 2001 |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience Climate change impacts on wave conditions can increase the risk of offshore and coastal hazards. The present paper investigates wave climate multi-decadal trends and inter-annual variability in the Bay of Biscay during the past decades (1958-2001). Wave fields are computed with a wave modelling system based on the WAVEWATCH III code and forced by ERA-40 reanalysis wind fields. It provides both an extended spatiotemporal domain and a refined spatial resolution over the Bay of Biscay. The validation of the wave model is based on eleven buoys, allowing the use of computed wave fields in the analysis of mean and extreme wave height trends and variability. Wave height, period and direction are examined for a large array of wave conditions (by seasons, high percentiles of wave heights, different periods). Several trends on recent periods are identified, notably an increase of summer significant wave height, a southerly shift of autumn extreme wave direction and a northerly shift of spring extreme wave direction. Wave fields exhibit high inter-annual variability, with a normalized standard deviation of seasonal wave height greater than 15% in wintertime. The relationship with northern hemisphere teleconnection patterns is investigated at regional scale, especially along the coast. It highlights a strong correlation between local wave conditions and the North Atlantic Oscillation and the East Atlantic pattern indices. This relationship is further investigated at local scale with a new method based on bivariate diagrams, allowing the identification of the type of waves (swell, storm, intermediate waves) impacted. These results are discussed in terms of comparison with previous studies and coastal risk implications. |
author2 |
Bureau de Recherches Géologiques et Minières (BRGM) (BRGM) Laboratoire d'Océanographie Spatiale (LOS) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Groupe d'étude de l'atmosphère météorologique (CNRM-GAME) Institut national des sciences de l'Univers (INSU - CNRS)-Météo France-Centre National de la Recherche Scientifique (CNRS) CNRM IFREMER |
format |
Article in Journal/Newspaper |
author |
Charles, Elodie Idier, Déborah Thiebot, Jérôme Le Cozannet, Gonéri Pedreros, Rodrigo Ardhuin, Fabrice Planton, Serge |
author_facet |
Charles, Elodie Idier, Déborah Thiebot, Jérôme Le Cozannet, Gonéri Pedreros, Rodrigo Ardhuin, Fabrice Planton, Serge |
author_sort |
Charles, Elodie |
title |
Present wave climate in the Bay of Biscay: spatiotemporal variability and trends from 1958 to 2001 |
title_short |
Present wave climate in the Bay of Biscay: spatiotemporal variability and trends from 1958 to 2001 |
title_full |
Present wave climate in the Bay of Biscay: spatiotemporal variability and trends from 1958 to 2001 |
title_fullStr |
Present wave climate in the Bay of Biscay: spatiotemporal variability and trends from 1958 to 2001 |
title_full_unstemmed |
Present wave climate in the Bay of Biscay: spatiotemporal variability and trends from 1958 to 2001 |
title_sort |
present wave climate in the bay of biscay: spatiotemporal variability and trends from 1958 to 2001 |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal-brgm.archives-ouvertes.fr/hal-00647448 https://hal-brgm.archives-ouvertes.fr/hal-00647448/document https://hal-brgm.archives-ouvertes.fr/hal-00647448/file/%5B15200442%20-%20Journal%20of%20Climate%5D%20Present%20Wave%20Climate%20in%20the%20Bay%20of%20Biscay%20Spatiotemporal%20Variability%20and%20Trends%20from%201958%20to%202001.pdf https://doi.org/10.1175/JCLI-D-11-00086.1 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
ISSN: 0894-8755 EISSN: 1520-0442 Journal of Climate https://hal-brgm.archives-ouvertes.fr/hal-00647448 Journal of Climate, American Meteorological Society, 2012, 25 (6), pp.2020-2039. ⟨10.1175/JCLI-D-11-00086.1⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1175/JCLI-D-11-00086.1 hal-00647448 https://hal-brgm.archives-ouvertes.fr/hal-00647448 https://hal-brgm.archives-ouvertes.fr/hal-00647448/document https://hal-brgm.archives-ouvertes.fr/hal-00647448/file/%5B15200442%20-%20Journal%20of%20Climate%5D%20Present%20Wave%20Climate%20in%20the%20Bay%20of%20Biscay%20Spatiotemporal%20Variability%20and%20Trends%20from%201958%20to%202001.pdf doi:10.1175/JCLI-D-11-00086.1 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1175/JCLI-D-11-00086.1 |
container_title |
Journal of Climate |
container_volume |
25 |
container_issue |
6 |
container_start_page |
2020 |
op_container_end_page |
2039 |
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1766134419973734400 |