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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Amer Geophysical Union
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ftarchimer:oai:archimer.ifremer.fr:71847 2023-05-15T17:31:35+02:00 Increased Winter-Mean Wave Height, Variability, and Periodicity in the Northeast Atlantic Over 1949-2017 Castelle, Bruno Dodet, Guillaume Masselink, Gerhard Scott, Tim 2018-04 application/pdf https://archimer.ifremer.fr/doc/00606/71847/70487.pdf https://archimer.ifremer.fr/doc/00606/71847/70488.pdf https://archimer.ifremer.fr/doc/00606/71847/70489.nc https://doi.org/10.1002/2017GL076884 https://archimer.ifremer.fr/doc/00606/71847/ eng eng Amer Geophysical Union https://archimer.ifremer.fr/doc/00606/71847/70487.pdf https://archimer.ifremer.fr/doc/00606/71847/70488.pdf https://archimer.ifremer.fr/doc/00606/71847/70489.nc doi:10.1002/2017GL076884 https://archimer.ifremer.fr/doc/00606/71847/ info:eu-repo/semantics/openAccess restricted use Geophysical Research Letters (0094-8276) (Amer Geophysical Union), 2018-04 , Vol. 45 , N. 8 , P. 3586-3596 text Publication info:eu-repo/semantics/article 2018 ftarchimer https://doi.org/10.1002/2017GL076884 2021-09-23T20:34:27Z 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. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Northeast Atlantic Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Geophysical Research Letters 45 8 3586 3596 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
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. |
format |
Article in Journal/Newspaper |
author |
Castelle, Bruno Dodet, Guillaume Masselink, Gerhard Scott, Tim |
spellingShingle |
Castelle, Bruno Dodet, Guillaume Masselink, Gerhard Scott, Tim Increased Winter-Mean Wave Height, Variability, and Periodicity in the Northeast Atlantic Over 1949-2017 |
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 |
publisher |
Amer Geophysical Union |
publishDate |
2018 |
url |
https://archimer.ifremer.fr/doc/00606/71847/70487.pdf https://archimer.ifremer.fr/doc/00606/71847/70488.pdf https://archimer.ifremer.fr/doc/00606/71847/70489.nc https://doi.org/10.1002/2017GL076884 https://archimer.ifremer.fr/doc/00606/71847/ |
genre |
North Atlantic North Atlantic oscillation Northeast Atlantic |
genre_facet |
North Atlantic North Atlantic oscillation Northeast Atlantic |
op_source |
Geophysical Research Letters (0094-8276) (Amer Geophysical Union), 2018-04 , Vol. 45 , N. 8 , P. 3586-3596 |
op_relation |
https://archimer.ifremer.fr/doc/00606/71847/70487.pdf https://archimer.ifremer.fr/doc/00606/71847/70488.pdf https://archimer.ifremer.fr/doc/00606/71847/70489.nc doi:10.1002/2017GL076884 https://archimer.ifremer.fr/doc/00606/71847/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1002/2017GL076884 |
container_title |
Geophysical Research Letters |
container_volume |
45 |
container_issue |
8 |
container_start_page |
3586 |
op_container_end_page |
3596 |
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1766129240263098368 |