Increased Winter-Mean Wave Height, Variability, and Periodicity in the Northeast Atlantic Over 1949-2017
A 69-year (1948-2017) numerical weather and wave hindcast is used to investigate the interannual variability and trend of winter wave height along the west coast of Europe. Results show that the winter-mean wave height, variability, and periodicity all increased significantly in the northeast Atlant...
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Online Access: | https://oskar-bordeaux.fr/handle/20.500.12278/188834 https://hdl.handle.net/20.500.12278/188834 https://doi.org/10.1002/2017GL076884 |
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ftoskarbordeaux:oai:oskar-bordeaux.fr:20.500.12278/188834 2024-09-09T19:56:50+00:00 Increased Winter-Mean Wave Height, Variability, and Periodicity in the Northeast Atlantic Over 1949-2017 CASTELLE, Bruno DODET, Guillaume MASSELINK, Gerhard SCOTT, Tim 2018 https://oskar-bordeaux.fr/handle/20.500.12278/188834 https://hdl.handle.net/20.500.12278/188834 https://doi.org/10.1002/2017GL076884 EN eng 0094-8276 https://oskar-bordeaux.fr/handle/20.500.12278/188834 doi:10.1002/2017GL076884 open Pas de Licence CC Sciences du Vivant [q-bio]/Microbiologie et Parasitologie Article de revue 2018 ftoskarbordeaux https://doi.org/20.500.12278/18883410.1002/2017GL076884 2024-08-27T06:09:22Z A 69-year (1948-2017) numerical weather and wave hindcast is used to investigate the interannual variability and trend of winter wave height along the west coast of Europe. Results show that the winter-mean wave height, variability, and periodicity all increased significantly in the northeast Atlantic over the last seven decades which primarily correlate with changes in the climate indices North Atlantic Oscillation (NAO) and West Europe Pressure Anomaly (WEPA) affecting atmospheric circulation in the North Atlantic. NAO and WEPA primarily explain the increase in winter-mean wave height and periodicity, respectively, while both WEPA and NAO explain the increase in interannual variability. This increase in trend, variability, and periodicity resulted in more frequent high-energy winters with high NAO and/or WEPA over the last decades. The ability of climate models to predict the winter NAO and WEPA indices a few months ahead will be crucial to anticipate coastal hazards in this region. Plain Language Summary We explore the evolution of winter-mean wave height, variability, and periodicity in the northeast Atlantic over 1949-2017 and the links with the primary climate indices explaining winter wave activity, which is critical from the coastal hazard perspective. The climate indices NAO and WEPA primarily drive the increase in winter-mean wave height and periodicity, respectively, while both WEPA and NAO explain the increase in interannual variability, resulting in more frequent high-energy winters over the last seven decades. Extreme winter-mean wave heights become more frequent as WEPA and NAO positivity and variability increase. Predicting WEPA and NAO a few months ahead is crucial to anticipate coastal hazards, which is of interest for coastal and climate communities. Marier les objectifs de défense côtière avec ceux de la protection du milieu naturel grâce aux dunes sableuses Article in Journal/Newspaper North Atlantic North Atlantic oscillation Northeast Atlantic OSKAR Bordeaux (Open Science Knowledge ARchive) Geophysical Research Letters 45 8 3586 3596 |
institution |
Open Polar |
collection |
OSKAR Bordeaux (Open Science Knowledge ARchive) |
op_collection_id |
ftoskarbordeaux |
language |
English |
topic |
Sciences du Vivant [q-bio]/Microbiologie et Parasitologie |
spellingShingle |
Sciences du Vivant [q-bio]/Microbiologie et Parasitologie CASTELLE, Bruno DODET, Guillaume MASSELINK, Gerhard SCOTT, Tim Increased Winter-Mean Wave Height, Variability, and Periodicity in the Northeast Atlantic Over 1949-2017 |
topic_facet |
Sciences du Vivant [q-bio]/Microbiologie et Parasitologie |
description |
A 69-year (1948-2017) numerical weather and wave hindcast is used to investigate the interannual variability and trend of winter wave height along the west coast of Europe. Results show that the winter-mean wave height, variability, and periodicity all increased significantly in the northeast Atlantic over the last seven decades which primarily correlate with changes in the climate indices North Atlantic Oscillation (NAO) and West Europe Pressure Anomaly (WEPA) affecting atmospheric circulation in the North Atlantic. NAO and WEPA primarily explain the increase in winter-mean wave height and periodicity, respectively, while both WEPA and NAO explain the increase in interannual variability. This increase in trend, variability, and periodicity resulted in more frequent high-energy winters with high NAO and/or WEPA over the last decades. The ability of climate models to predict the winter NAO and WEPA indices a few months ahead will be crucial to anticipate coastal hazards in this region. Plain Language Summary We explore the evolution of winter-mean wave height, variability, and periodicity in the northeast Atlantic over 1949-2017 and the links with the primary climate indices explaining winter wave activity, which is critical from the coastal hazard perspective. The climate indices NAO and WEPA primarily drive the increase in winter-mean wave height and periodicity, respectively, while both WEPA and NAO explain the increase in interannual variability, resulting in more frequent high-energy winters over the last seven decades. Extreme winter-mean wave heights become more frequent as WEPA and NAO positivity and variability increase. Predicting WEPA and NAO a few months ahead is crucial to anticipate coastal hazards, which is of interest for coastal and climate communities. Marier les objectifs de défense côtière avec ceux de la protection du milieu naturel grâce aux dunes sableuses |
format |
Article in Journal/Newspaper |
author |
CASTELLE, Bruno DODET, Guillaume MASSELINK, Gerhard SCOTT, Tim |
author_facet |
CASTELLE, Bruno DODET, Guillaume MASSELINK, Gerhard SCOTT, Tim |
author_sort |
CASTELLE, Bruno |
title |
Increased Winter-Mean Wave Height, Variability, and Periodicity in the Northeast Atlantic Over 1949-2017 |
title_short |
Increased Winter-Mean Wave Height, Variability, and Periodicity in the Northeast Atlantic Over 1949-2017 |
title_full |
Increased Winter-Mean Wave Height, Variability, and Periodicity in the Northeast Atlantic Over 1949-2017 |
title_fullStr |
Increased Winter-Mean Wave Height, Variability, and Periodicity in the Northeast Atlantic Over 1949-2017 |
title_full_unstemmed |
Increased Winter-Mean Wave Height, Variability, and Periodicity in the Northeast Atlantic Over 1949-2017 |
title_sort |
increased winter-mean wave height, variability, and periodicity in the northeast atlantic over 1949-2017 |
publishDate |
2018 |
url |
https://oskar-bordeaux.fr/handle/20.500.12278/188834 https://hdl.handle.net/20.500.12278/188834 https://doi.org/10.1002/2017GL076884 |
genre |
North Atlantic North Atlantic oscillation Northeast Atlantic |
genre_facet |
North Atlantic North Atlantic oscillation Northeast Atlantic |
op_relation |
0094-8276 https://oskar-bordeaux.fr/handle/20.500.12278/188834 doi:10.1002/2017GL076884 |
op_rights |
open Pas de Licence CC |
op_doi |
https://doi.org/20.500.12278/18883410.1002/2017GL076884 |
container_title |
Geophysical Research Letters |
container_volume |
45 |
container_issue |
8 |
container_start_page |
3586 |
op_container_end_page |
3596 |
_version_ |
1809927687988314112 |